Dispensing device

Abstract

The utility model belongs to the technical field of dispensing equipment, and discloses a dispensing device which comprises a support assembly, a dispensing assembly and an adjusting assembly, the dispensing assembly is located above an FPC flexible flat cable, the dispensing assembly comprises a glue barrel and a dispensing needle connected to the glue barrel, the dispensing assembly is rotatably connected to the support assembly, and the adjusting assembly is located above the support assembly. The axial direction of the glue dispensing needle is obliquely arranged relative to the FPC flexible flat cable so as to face the lap joint gap between the TFT substrate and the FPC flexible flat cable, and the adjusting assembly is used for adjusting the rotation angle of the glue cylinder so as to adjust the inclination angle between the glue dispensing needle and the FPC flexible flat cable. According to the dispensing device disclosed by the utility model, line glue can be prevented from being coated on the back surface of a TFT (Thin Film Transistor) substrate, so that the rework rate of finished products is reduced, a large amount of manpower waste is further reduced, and the problem that the product quality does not reach the standard due to residual glue scraps which are difficult to clean during rework is avoided.

Description

Technical Field

[0001] This utility model relates to the field of dispensing device technology, and in particular to dispensing devices. Background Technology

[0002] The production process of electronic paper modules involves multiple steps, one of which is a two-in-one adhesive coating. This coating includes applying surface adhesive and applying line adhesive. The front side of the TFT substrate overlaps with the FPC flexible cable. Surface adhesive is applied to cover the exposed leads on the front side of the TFT substrate, while line adhesive is applied along the overlap between the FPC flexible cable and the TFT substrate. This prevents moisture and oxygen from intruding and causing corrosion in the bonding area. Existing adhesive coating machines use a vertical dispensing method for line adhesive application. The dispensing needle is positioned above the back side of the TFT substrate and perpendicular to the FPC flexible cable. Due to the large size of the surface adhesive particles, short curing time, and the need for regular needle cleaning, and because the inner diameter of the dispensing needle is usually large, due to equipment precision issues, it is difficult to avoid applying line adhesive to the back side of the TFT substrate. Furthermore, it is easy to encounter problems such as excessive line adhesive width on the FPC flexible cable, leading to rework. This not only wastes a lot of manpower but also generates difficult-to-clean adhesive residue, resulting in substandard product quality. Utility Model Content

[0003] The purpose of this invention is to provide a dispensing device that can solve the problems of existing dispensing machines using vertical dispensing methods, such as the adhesive being applied to the back of the TFT substrate and the adhesive width on the FPC flexible cable exceeding the standard. This leads to a large amount of manpower being wasted due to rework of the finished products, and the rework will produce difficult-to-clean adhesive residue, resulting in substandard product quality.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A dispensing apparatus is provided for bonding an electronic paper module, the electronic paper module including a TFT substrate and an FPC flexible flat cable, a portion of the TFT substrate overlapping the FPC flexible flat cable. The dispensing apparatus includes a support assembly, a dispensing assembly, and an adjustment assembly. The dispensing assembly is located above the FPC flexible flat cable. The dispensing assembly includes a glue tube and a dispensing needle connected to the glue tube. The dispensing assembly is rotatably connected to the support assembly, and the axial direction of the dispensing needle is inclined relative to the FPC flexible flat cable toward the overlap gap between the TFT substrate and the FPC flexible flat cable. The adjustment assembly is used to adjust the rotation angle of the glue tube to adjust the tilt angle between the dispensing needle and the FPC flexible flat cable.

[0006] In one embodiment, the adjusting assembly includes a locking member and an adjusting bracket connected to the rubber tube. The adjusting bracket is rotatably connected to the support assembly. The locking member has a locked state and an adjusting state. In the locked state, the locking member is used to connect the adjusting bracket and the support assembly. When the locking member is in the adjusting state, the adjusting bracket can rotate relative to the support assembly.

[0007] In one embodiment, one of the support assembly and the adjustment frame is provided with a guide groove, and the other has a guide member. The guide groove is an arc-shaped groove, and the guide member is slidably disposed within the guide groove.

[0008] In one embodiment, the bracket assembly has a threaded hole, and the locking member includes a locking bolt and a nut disposed at the end of the locking bolt. The locking bolt passes through the guide groove and the threaded hole in sequence. When the nut abuts against the adjusting frame, the locking member is in a locked state.

[0009] In one embodiment, the axis of the rubber tube passes through the center of the guide groove, and the axial direction of the rubber tube extends radially along the guide groove.

[0010] In one embodiment, the support assembly includes a support body and a lifting platform movably connected to the support body. The dispensing assembly is rotatably disposed on the lifting platform, which is capable of vertically raising and lowering to adjust the vertical distance between the dispensing needle and the FPC flexible cable.

[0011] In one embodiment, the dispensing device further includes a height sensor for detecting the vertical distance between the dispensing needle and the FPC flexible cable.

[0012] In one embodiment, the dispensing device further includes a linear motor, the base of which is disposed on the support body, the lifting platform is disposed on the slide of the linear motor, and the height sensor is communicatively connected to the linear motor.

[0013] In one embodiment, the dispensing device further includes a display screen, to which the height sensor is communicatively connected, and the display screen is used to display the detection data of the height sensor.

[0014] In one embodiment, the dispensing apparatus further includes a horizontal drive member for driving the dispensing assembly to move in a horizontal plane along the extension direction of one side of the TFT substrate.

[0015] The beneficial effects of this utility model are:

[0016] The dispensing device provided by this utility model is used for bonding electronic paper modules. The electronic paper module includes a TFT substrate and an FPC flexible flat cable. The dispensing device includes a support assembly, a dispensing assembly, and an adjustment assembly. The dispensing assembly is located above the FPC flexible flat cable. The dispensing assembly includes a glue tube and a dispensing needle connected to the glue tube. The glue tube is used to hold the top adhesive. The type of top adhesive can be selected according to the working conditions of the electronic paper module and can be set with reference to existing technology. This embodiment is not limited here. The dispensing assembly is rotatably connected to the support assembly. The axis of the dispensing needle is inclined relative to the FPC flexible flat cable to face the overlap gap between the TFT substrate and the FPC flexible flat cable. Compared with the vertical dispensing method, the projected area of ​​the inclined dispensing needle on the FPC flexible flat cable is smaller, which is beneficial to control the width of the line adhesive applied by the dispensing needle at the overlap gap, avoiding the problem of excessive line adhesive width and reducing the rework rate of finished products. Furthermore, the tilted dispensing needle faces the overlap gap between the TFT substrate and the FPC flexible cable, confining the adhesive between the end side of the TFT substrate and the upper surface of the FPC flexible cable. This prevents the adhesive from being applied to the back of the TFT substrate, reducing rework rates and minimizing manpower waste. It also avoids the problem of difficult-to-clean adhesive residue caused by rework, which could lead to substandard product quality. The adjustment component is used to adjust the rotation angle of the adhesive cartridge to adjust the tilt angle between the dispensing needle and the FPC flexible cable. This adjustment is tailored to the thickness of the TFT substrate, ensuring that the adhesive at the overlap gap meets width requirements while covering as much area as possible on the end side of the TFT substrate in the thickness direction. This creates a better seal and reduces the risk of corrosion in the bonding area due to moisture and oxygen intrusion. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the dispensing device provided in an embodiment of the present invention from one perspective;

[0018] Figure 2 This is a structural schematic diagram of the dispensing device provided in an embodiment of the present invention from another perspective.

[0019] In the picture:

[0020] 1. Support assembly; 11. Guide component; 12. Support body; 13. Lifting platform; 2. Dispensing assembly; 21. Glue cartridge; 22. Dispensing needle; 3. Adjustment assembly; 31. Locking component; 32. Adjustment frame; 321. Guide groove; 4. Height sensor; 5. Linear motor; 6. Lateral drive component; 7. Dispensing platform;

[0021] 100. Electronic paper module; 101. TFT substrate; 102. FPC flexible flat cable. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] like Figure 1 and Figure 2As shown, this embodiment provides a dispensing device for bonding an electronic paper module 100. The electronic paper module 100 includes a TFT substrate 101 and an FPC flexible flat cable 102. A portion of the TFT substrate 101 overlaps one end of the FPC flexible flat cable 102, forming a bonding area. The dispensing device includes a support assembly 1, a dispensing assembly 2, and an adjustment assembly 3. The dispensing assembly 2 is located above the FPC flexible flat cable 102. The dispensing assembly 2 includes a glue cartridge 21 and a dispensing needle 22 connected to the glue cartridge 21. The glue cartridge 21 is used to hold the adhesive. The type of adhesive can be selected according to the operating conditions of the electronic paper module 100 and can be set with reference to existing technology. This embodiment does not impose any limitations on this. The dispensing assembly 2 is rotatably connected to the support assembly 1. The axial direction of the dispensing needle 22 is inclined relative to the FPC flexible flat cable 102 to face the overlap gap between the TFT substrate 101 and the FPC flexible flat cable 102. Compared to vertical dispensing, the projected area of ​​the tilted dispensing needle 22 on the FPC flexible cable 102 is smaller, which helps control the width of the adhesive applied by the dispensing needle 22 at the overlap seam, avoiding excessive adhesive width and reducing the rework rate. Furthermore, with the tilted dispensing needle 22 facing the overlap seam between the TFT substrate 101 and the FPC flexible cable 102, the adhesive is constrained between the end side of the TFT substrate 101 and the upper surface of the FPC flexible cable 102, preventing adhesive from being applied to the back of the TFT substrate 101, reducing the rework rate, minimizing manpower waste, and avoiding product quality issues caused by difficult-to-clean adhesive residue from rework. The adjustment component 3 is used to adjust the rotation angle of the glue cylinder 21 to adjust the tilt angle between the dispensing needle 22 and the FPC flexible flat cable 102. The tilt angle of the dispensing needle 22 relative to the FPC flexible flat cable 102 is adjusted according to the thickness of the TFT substrate 101, so that the glue can meet the width requirements at the overlap gap and cover as much area as possible on the end side of the TFT substrate 101 in the thickness direction, forming a better sealing effect and reducing the risk of corrosion of the bonding area caused by the intrusion of moisture, oxygen and other substances.

[0027] The rotation angle of the dispensing needle 22 can be obtained through multiple adjustments in practical applications, which is not the focus of this application, and this embodiment does not impose any limitations on it.

[0028] The adjusting assembly 3 includes a locking member 31 and an adjusting frame 32 connected to the glue cylinder 21. The adjusting frame 32 is rotatably connected to the support assembly 1. The locking member 31 has a locked state and an adjusting state. In the locked state, the locking member 31 is used to connect the adjusting frame 32 and the support assembly 1 to keep the state of the dispensing assembly 2 stable and ensure the dispensing effect. When the locking member 31 is in the adjusting state, the adjusting frame 32 can rotate relative to the support assembly 1, so that the dispensing assembly 2 can be adjusted to the required tilt angle.

[0029] To ensure that the rotation radius and center of rotation of the rotating adjustment frame 32 remain unchanged, one of the support assembly 1 and the adjustment frame 32 is provided with a guide groove 321, and the other has a guide member 11. The guide groove 321 is an arc-shaped groove, and the guide member 11 is slidably disposed within the guide groove 321. Exemplarily, in one embodiment, the adjustment frame 32 is provided with a guide groove 321, and the support assembly 1 is provided with a guide member 11. The guide member 11 may be a guide cylinder, which is slidably disposed within the guide groove 321, thereby constraining the rotation trajectory of the adjustment frame 32 to control the dispensing assembly 2 to rotate only.

[0030] The bracket assembly 1 has a threaded hole. The locking member 31 includes a locking bolt and a nut at the end of the locking bolt. The locking bolt passes through the guide groove 321 and the threaded hole in sequence. Tightening the locking bolt can change the axial position of the locking member 31. When the nut abuts against the adjusting frame 32, the locking member 31 is in a locked state, and the adjusting frame 32 and the bracket assembly 1 cannot rotate relative to each other. Conversely, when the locking bolt is tightened, the locking member 31 is loosened and adjusted, then the adjusting frame 32 can rotate relative to the bracket assembly 1.

[0031] In one embodiment, the axis of the glue cartridge 21 passes through the center of the guide groove 321, and the axial direction of the glue cartridge 21 extends radially along the guide groove 321. In this way, the rotation angle of the adjusting frame 32 is the same as the rotation angle of the glue cartridge 21, which allows for more intuitive control of the tilt angle of the dispensing needle 22.

[0032] The bracket assembly 1 includes a bracket body 12 and a lifting platform 13 movably connected to the bracket body 12. The dispensing assembly 2 is rotatably disposed on the lifting platform 13. The lifting platform 13 can be raised and lowered in the vertical direction to adjust the vertical distance between the dispensing needle 22 and the FPC flexible cable 102.

[0033] To prevent the dispensing needle 22 from scratching the electronic paper module 100 due to being too low, the dispensing device also includes a height sensor 4. The height sensor 4 is used to detect the vertical distance between the dispensing needle 22 and the FPC flexible cable 102. Typically, the height sensor 4 is mounted on the dispensing platform 7, which supports the electronic paper module 100. The specific structure and measurement principle of the height sensor 4 can be found in existing technology and will not be elaborated upon here. Based on the detection data from the height sensor 4, it can be determined whether the height of the dispensing needle 22 is appropriate.

[0034] To more intuitively display the detection results of the height sensor 4, the dispensing device also includes a display screen (not shown in the figure). The height sensor 4 is communicatively connected to the display screen, and the data detected by the height sensor 4 is transmitted to the display screen, which displays the detection data of the height sensor 4. The user can see in a timely manner whether the height of the dispensing needle 22 is appropriate.

[0035] The dispensing device also includes a linear motor 5, with its base mounted on the support body 12. A lifting platform 13 is mounted on the slide of the linear motor 5, and a height sensor 4 is communicatively connected to the linear motor 5. The linear motor 5 can adjust the height of the dispensing assembly 2 based on the detection data from the height sensor 4, ensuring that the vertical distance between the dispensing needle 22 and the FPC flexible cable 102 meets the dispensing process requirements.

[0036] The dispensing assembly 2 needs to move along the overlap edge of the TFT substrate 101 and the FPC flexible cable 102 while dispensing adhesive. Therefore, the dispensing device also includes a lateral drive 6, which drives the dispensing assembly 2 to move horizontally along the extension direction of one side of the TFT substrate 101. The lateral drive 6 can be a lateral linear motor. The base of the lateral linear motor is set on the fixed frame of the support assembly 1, and the slide of the lateral linear motor is set on the support body 12. When the lateral linear motor is activated, it drives the dispensing assembly 2 to move horizontally along the extension direction of one side of the TFT substrate 101, so that the overlap edge is completely covered by adhesive. Moreover, the linear motor 5 can follow the lateral movement of the support body 12, so that the dispensing assembly 2 can not only move horizontally in the horizontal plane, but also move up and down.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A dispensing device for bonding an electronic paper module (100), the electronic paper module (100) comprising a TFT substrate (101) and an FPC flexible flat cable (102), wherein a portion of the TFT substrate (101) overlaps one end of the FPC flexible flat cable (102), characterized in that, The dispensing device includes a support assembly (1), a dispensing assembly (2), and an adjustment assembly (3). The dispensing assembly (2) is located above the FPC flexible flat cable (102). The dispensing assembly (2) includes a glue tube (21) and a dispensing needle (22) connected to the glue tube (21). The dispensing assembly (2) is rotatably connected to the support assembly (1), and the axial direction of the dispensing needle (22) is inclined relative to the FPC flexible flat cable (102) to face the overlap gap between the TFT substrate (101) and the FPC flexible flat cable (102). The adjustment assembly (3) is used to adjust the rotation angle of the glue tube (21) to adjust the tilt angle between the dispensing needle (22) and the FPC flexible flat cable (102).

2. The dispensing device according to claim 1, characterized in that, The adjustment assembly (3) includes a locking member (31) and an adjustment frame (32) connected to the rubber tube (21). The adjustment frame (32) is rotatably connected to the support assembly (1). The locking member (31) has a locked state and an adjusted state. In the locked state, the locking member (31) is used to connect the adjustment frame (32) and the support assembly (1). When the locking member (31) is in the adjusted state, the adjustment frame (32) can rotate relative to the support assembly (1).

3. The dispensing device according to claim 2, characterized in that, One of the bracket assembly (1) and the adjustment frame (32) has a guide groove (321), and the other has a guide member (11). The guide groove (321) is an arc-shaped groove, and the guide member (11) is slidably disposed in the guide groove (321).

4. The dispensing device according to claim 3, characterized in that, The bracket assembly (1) has a threaded hole. The locking member (31) includes a locking bolt and a nut disposed at the end of the locking bolt. The locking bolt passes through the guide groove (321) and the threaded hole in sequence. When the nut abuts against the adjusting frame (32), the locking member (31) is in a locked state.

5. The dispensing device according to claim 3, characterized in that, The axis of the rubber tube (21) passes through the center of the guide groove (321), and the axial direction of the rubber tube (21) extends radially along the guide groove (321).

6. The dispensing device according to claim 1, characterized in that, The bracket assembly (1) includes a bracket body (12) and a lifting platform (13) movably connected to the bracket body (12). The dispensing assembly (2) is rotatably disposed on the lifting platform (13). The lifting platform (13) can be raised and lowered in the vertical direction to adjust the vertical distance between the dispensing needle (22) and the FPC flexible cable (102).

7. The dispensing device according to claim 6, characterized in that, The dispensing device also includes a height sensor (4), which is used to detect the vertical distance between the dispensing needle (22) and the FPC flexible cable (102).

8. The dispensing device according to claim 7, characterized in that, The dispensing device also includes a linear motor (5), the base of which is disposed on the support body (12), the lifting platform (13) is disposed on the slide of the linear motor (5), and the height sensor (4) is communicatively connected to the linear motor (5).

9. The dispensing device according to claim 7, characterized in that, The dispensing device also includes a display screen, and the height sensor (4) is communicatively connected to the display screen. The display screen is used to display the detection data of the height sensor (4).

10. The dispensing apparatus according to any one of claims 1-9, characterized in that, The dispensing device further includes a transverse drive (6), which is used to drive the dispensing assembly (2) to move in the horizontal plane along the extension direction of one side of the TFT substrate (101).

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