Display screen assembling and dispensing equipment

Abstract

The invention discloses display screen assembling and dispensing equipment, and relates to the field of dispensing machines, the display screen assembling and dispensing equipment comprises a dispensing module, the dispensing module comprises a base and a dispensing head, one side of the base is provided with a cleaning mechanism, the cleaning mechanism comprises a rotating frame and a swing seat, and the rotating frame is rotatably mounted at the bottom of the base through a first rotating shaft; the swing seat is rotationally installed on the rotating frame through a second rotating shaft, the first rotating shaft is connected with a first driving piece used for rotating the first rotating shaft, the second rotating shaft is connected with a second driving piece used for driving the second rotating shaft to rotate, a sponge cushion is installed on the swing seat, and two symmetrically-formed channels are formed in the sponge cushion; through the linkage design of the rotating frame and the swing seat, the cleaning mechanism and the dispensing operation are synchronously operated, the dispensing head can be cleaned without shutdown, and the production efficiency is remarkably improved; and through the two channels formed in the sponge mat and switching of the second driving piece to the two channels, double-face alternate friction cleaning is achieved, single-side pollution residues are avoided, and the service life of the sponge mat is prolonged.

Description

Technical Field

[0001] This invention relates to dispensing machine technology, and more specifically to a dispensing device for assembling a display screen. Background Technology

[0002] In the field of precision display assembly, the stability of the dispensing process directly affects the screen's sealing performance and display quality. In existing technologies, the control and real-time cleaning of residual adhesive at the dispensing head is a challenge to ensure adhesive uniformity and production efficiency. Chinese invention patent CN116764894B discloses a mobile OLED screen dispensing machine. The semi-circular baffle in the adhesive blocking component opens and closes to isolate the dispensing head from the panel, preventing residual adhesive from dripping and causing contamination. Although this technology can achieve static isolation, the baffle is only used for physical isolation to prevent adhesive dripping and cannot actively clean the residual adhesive on the surface of the dispensing head. Adhesive will still be present at the dispensing head's outlet position. During dispensing, the residual adhesive at the outlet position can easily affect the initial dispensing position of the display screen and the uniformity of the adhesive at that position. Summary of the Invention

[0003] The purpose of this invention is to provide a display screen assembly dispensing device to overcome the above-mentioned shortcomings in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a display screen assembly dispensing device, comprising a dispensing module, the dispensing module comprising a base and a dispensing head, a cleaning mechanism mounted on one side of the base, the cleaning mechanism comprising a rotating frame and a swing seat, the rotating frame being rotatably mounted on the bottom of the base via a first rotating shaft, the swing seat being rotatably mounted on the rotating frame via a second rotating shaft, the first rotating shaft being connected to a first driving component for its rotation, the second rotating shaft being connected to a second driving component for driving its rotation, and a sponge pad being mounted on the swing seat, the sponge pad having two symmetrically opened grooves;

[0005] When the rotating frame rotates, the dispensing head's dispensing end is located on the moving path of the sponge pad, and one of the channels is in frictional contact with the dispensing head. After the sponge pad passes the dispensing head, the second driving component drives the swing seat to rotate so that the other channel is in frictional contact with the dispensing head when the rotating frame returns.

[0006] Furthermore, the central axis of the second rotating shaft is set in the vertical direction, and the two channels are arranged in an X-shape.

[0007] Furthermore, the second driving component includes a counterweight. When the swing seat rotates around the central axis of the first rotating shaft to both sides of the dispensing head, the counterweight drives the swing seat to rotate around the central axis of the second rotating shaft under its own weight.

[0008] Furthermore, the counterweight is fixedly connected to the end of the second rotating shaft via a first connecting rod, and the length direction of the first connecting rod is perpendicular to the axial direction of the second rotating shaft.

[0009] Furthermore, a second connecting rod is connected to one side of the counterweight block. The second connecting rod is fixedly installed on the support. The support is rotatably connected to the rotating frame. A third connecting rod is slidably connected to one end of the second connecting rod near the swing seat. A spring is sleeved on the second connecting rod located between the support and the third connecting rod. The end of the third connecting rod is slidably connected to the side wall of the swing seat.

[0010] Furthermore, the central axis of the second rotating shaft is parallel to the central axis of the first rotating shaft, and the two channels are arranged opposite to each other and are interconnected.

[0011] Furthermore, the two channels slope downwards on opposite sides.

[0012] Furthermore, the second driving component includes a counterweight ball, and the bottom of the swing seat has a moving channel with both ends closed along its length. The two ends of the moving channel are located on both sides of the second rotating shaft, and the counterweight ball can move freely within the moving channel.

[0013] Furthermore, it also includes a blocking element comprising two blocking blocks mounted on the rotating frame and located on the path of the swing seat rotating about the second rotating axis, for limiting the rotation angle of the swing seat under the drive of the second driving element.

[0014] Compared with the prior art, the display assembly dispensing equipment provided by the present invention has the following beneficial effects:

[0015] This display assembly dispensing equipment, through the linkage design of the rotating frame and the swing seat, allows the cleaning mechanism and dispensing operation to run synchronously, completing the cleaning of the dispensing head without stopping the machine, significantly improving production efficiency; through the two channels set on the sponge pad, and the switching of the two channels by the second drive component, double-sided alternating friction cleaning is achieved, avoiding single-sided contamination residue and extending the service life of the sponge pad;

[0016] By setting counterweights or counterweight balls, the channel can be switched to reduce energy consumption and operating costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the dispensing module structure provided in an embodiment of the present invention;

[0019] Figure 2 This is a partial structural diagram of the dispensing module provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the cleaning mechanism structure provided in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the counterweight and the first connecting rod when they are in contact, as provided in an embodiment of the present invention.

[0022] Figure 5 A schematic diagram of the structure when the counterweight is engaged with the second and third connecting rods according to an embodiment of the present invention;

[0023] Figure 6 Provided for embodiments of the present invention Figure 6 Top view;

[0024] Figure 7 This is a schematic diagram of the sponge pad structure when the second rotating shaft is horizontally set according to the second embodiment of the present invention;

[0025] Figure 8 Provided for embodiments of the present invention Figure 7 Side view;

[0026] Figure 9 This is a schematic diagram of the sponge pad structure during horizontal movement of the swing frame, as provided in the third embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Dispensing module; 2. Base; 3. Dispensing head; 4. Cleaning mechanism; 41. Rotating frame; 42. Swinging seat; 43. First rotating shaft; 44. Second rotating shaft; 45. First driving component; 451. First motor; 46. Second driving component; 461. Counterweight; 462. First connecting rod; 463. Second connecting rod; 464. Support; 465. Third connecting rod; 466. Spring; 467. Counterweight ball; 468. Moving channel; 47. Sponge pad; 48. Channel; 49. Blocking component; 491. Blocking block. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] For examples, please refer to Figures 1-9A display screen assembly dispensing device includes a dispensing module 1, which includes a base 2 and a dispensing head 3. A cleaning mechanism 4 is installed on one side of the base 2. The cleaning mechanism 4 includes a rotating frame 41 and a swing seat 42. The rotating frame 41 is rotatably mounted on the bottom of the base 2 via a first rotating shaft 43. The swing seat 42 is rotatably mounted on the rotating frame 41 via a second rotating shaft 44. The first rotating shaft 43 is connected to a first driving member 45 for its rotation. The second rotating shaft 44 is connected to a second driving member 46 for driving its rotation. A sponge pad 47 is installed on the swing seat 42. The sponge pad 47 has two symmetrically opened grooves 48.

[0031] When the rotating frame 41 rotates, the dispensing end of the dispensing head 3 is located on the moving path of the sponge pad 47, and one of the channels 48 is in frictional contact with the dispensing head 3. When the sponge pad 47 passes the dispensing head 3, the second driving member 46 drives the swing seat 42 to rotate so that when the rotating frame 41 returns, the other channel 48 is in frictional contact with the dispensing head 3.

[0032] like Figure 2 and Figure 3 As shown, when the dispensing module 1 performs dispensing operations, the cleaning mechanism 4 is activated after the dispensing head 3 dispenses glue. The first driving component 45 drives the rotating frame 41 to reciprocate, which in turn moves the swing seat 42 and the sponge pad 47. The swing seat 42 reciprocates on both sides of the dispensing head 3. During this process, the swing seat 42 can rotate to a position that does not obstruct the operation of the dispensing head 3. The rotation trajectory and position of the swing seat 42 are related to the setting position of the first rotating shaft 43 and the rotation angle of the first rotating shaft 43.

[0033] Driven by the rotating frame 41, the swing seat 42 makes one of the channels 48 of the sponge pad 47 contact the dispensing head 3, causing the inner wall of the channel 48 to rub against the dispensing end of the dispensing head 3, thus removing any residual glue that may be present at the dispensing end of the dispensing head 3. In specific implementation, taking the swing seat 42 located on one side of the dispensing head 3 as an example, after the dispensing head 3 dispenses glue and rises to a certain height, the first driving member 45 drives the swing frame to rotate, causing the swing seat 42 to rotate to a symmetrical position on the other side of the dispensing head 3. During the rotation, the swing seat 42 causes one of the channels 48 of the sponge pad 47 to contact the dispensing head 3, rubbing to remove residual glue and ensuring that the dispensing head 3 is clean. Subsequently, the second driving member 46 starts, and the swing seat 42 rotates around the second rotating shaft 44, causing the movement path of the other channel 48 to pass through the dispensing head 3, thereby continuing to clean the dispensing head 3. This process is repeated to clean the dispensing head 3 in real time during the operation cycle, ensuring the quality and efficiency of dispensing.

[0034] It should be noted that the depth of the groove 48 on the sponge pad 47 is determined by the position of the dispensing head 3 to be cleaned. In specific use, the depth can be determined based on the size of the dispensing head 3, the amount of residual adhesive, and the location of the residual adhesive. The width of the groove 48 should be smaller than the diameter of the dispensing head 3. The sponge-like pad has high compressibility. When the dispensing head 3 moves within the groove 48, the sponge pad 47 rubs against the surface of the dispensing head 3, effectively removing residual adhesive. The groove 48 design ensures maximum contact area between the sponge pad 47 and the dispensing head 3, improving cleaning effectiveness.

[0035] The cleaning mechanism 4 ensures that the cleaning action of the sponge pad 47 is synchronized with the dispensing operation, so that the dispensing head 3 is in optimal condition before each dispensing operation. This avoids dispensing errors caused by residual glue and its accumulation. Furthermore, during each cleaning of the sponge pad 47, the dispensing head 3 always enters the same end of the channel 48 during the alternating use of the two channels 48. This ensures that the residual glue on the dispensing head 3 is always cleaned from one end of the channel 48. This prevents the dispensing head 3 from entering the channel 48 from different ends, which would cause both ends of the channel 48 to be contaminated. This would also prevent the dispensing head 3 from being re-contaminated by the residual glue left at the entrance of the channel 48 when it leaves the channel 48 (when there is residual glue on the dispensing head 3, most of the residual glue will be left at the end where it initially enters the channel 48).

[0036] In one embodiment of the present invention, the first driving member 45 includes a first motor 451, which is mounted on the base 2 and its output end is fixedly connected to one end of the first rotating shaft 43. The first motor 451 drives the first rotating shaft 43 to rotate.

[0037] In one embodiment of the present invention, a configuration of the swing seat 42 is provided, wherein the central axis of the second rotating shaft 44 connected to the swing seat 42 is arranged in the vertical direction, and the two channels 48 are arranged in an X-shape. Figure 3 As shown, the angle of the two channels 48 determines the angle at which the swing seat 42 rotates. When the angle (acute angle) between the two channels 48 is small, the angle required for the swing seat 42 to switch the two channels 48 to the corresponding dispensing head 3 is small. However, this will also reduce the cleaning friction capability of the intersection of the two channels 48. If the angle between the two channels 48 is large, although the cleaning friction capability of the intersection of the two channels 48 to the dispensing head 3 is guaranteed, the large rotation angle will make the switching time of the channels 48 longer. In the case of a fast working cycle of the dispensing head 3, it is difficult to perform cleaning operations in time. In this embodiment, the angle between the two channels 48 is 30°-60°. A suitable angle is selected considering the actual working scenario of the dispensing head 3.

[0038] It should be noted that the sponge pad 47 includes, but is not limited to, polyurethane sponge. When selecting, choose parameters with appropriate pore size and resilience. The sponge pad 47 can be fixed to the swing seat 42 with double-sided tape, which makes it easy to replace. The channel 48 can be cut manually with a knife.

[0039] In one embodiment of the present invention, a method for setting the second driving member 46 is provided. The second driving member 46 includes a second motor, which is mounted on a rotating frame 41. The output end of the second motor is connected to a second rotating shaft 44. The second motor drives the second rotating shaft 44 to rotate, thereby causing the swing seat 42 to switch between two channels 48. This ensures that the dispensing head 3 cleans alternately in different channels 48, which not only improves cleaning efficiency but also extends the service life of the sponge pad 47 and optimizes the overall dispensing process.

[0040] In one embodiment of the present invention, another specific example of a second driving member 46 corresponding to the X-shaped channel 48 is provided. Specifically, the second driving member 46 includes a counterweight 461. When the swing seat 42 rotates around the central axis of the first rotating shaft 43 to both sides of the dispensing head 3, the counterweight 461 drives the swing seat 42 to rotate around the central axis of the second rotating shaft 44 under its own weight.

[0041] like Figure 4 As shown, the counterweight 461 is fixedly connected to the end of the second rotating shaft 44 via the first connecting rod 462, and the length direction of the first connecting rod 462 is perpendicular to the axial direction of the second rotating shaft 44. During the rotation of the rotating frame 41, the counterweight 461 will drive the second rotating shaft 44 to rotate under its own weight. When the swing seat 42 rotates on both sides of the dispensing head 3, the counterweight 461 drives the second rotating shaft 44 to rotate in different directions, thereby completing the switching of the channel 48.

[0042] like Figure 5 As shown, in some optional embodiments, a second connecting rod 463 is connected to one side of the counterweight 461. The second connecting rod 463 is fixedly installed on the support 464. The support 464 is rotatably connected to the rotating frame 41. A third connecting rod 465 is slidably connected to one end of the second connecting rod 463 near the swing seat 42. A spring 466 is sleeved on the second connecting rod 463 located between the support 464 and the third connecting rod 465. The end of the third connecting rod 465 is slidably connected to the side wall of the swing seat 42.

[0043] It also includes a blocking member 49, which comprises two blocking blocks 491 mounted on the rotating frame 41 and located on the path of the swing seat 42 rotating about the second rotating shaft 44, to limit the rotation angle of the swing seat 42 under the drive of the second driving member 46, such as... Figure 5As shown, the blocking block 491 can be installed on the rotating frame 41 at the waist hole. By adjusting the position of the blocking block 491 in the waist hole, the angle of the swing motion around the second rotating axis 44 can be adjusted to adapt to different rotation angle requirements.

[0044] When the counterweight 461 is activated, it drives the second link 463 and the third link 465 to rotate. The force is adjusted by the extension and retraction of the spring 466, causing the third link 465 to push the swing seat 42 to rotate, thus switching the channel 48. Figure 5 and Figure 6 As shown, a replaceable friction pad can be installed at the contact position between the swing seat 42 and the third link 465 to reduce wear. The end of the third link 465 can be designed as a ball head structure to reduce friction.

[0045] In one embodiment of the present invention, another arrangement of the swing seat 42 is provided, wherein the central axis of the second rotating shaft 44 is parallel to the central axis of the first rotating shaft 43, and the two channels 48 are arranged opposite to each other and are interconnected, such as... Figure 7 As shown, the two channels 48 are inclined downward on opposite sides, forming a V-shaped opening that connects the two channels 48. When the swing seat 42 rotates, the dispensing head 3 moves to the V-shaped opening relative to the sponge pad 47 first, and then enters one of the channels 48 from the V-shaped opening. When the channels 48 are switched, the dispensing head 3 enters the other channel 48 relative to the sponge pad 47 from the V-shaped opening.

[0046] Compared to the previous configuration where the second rotating shaft 44 was vertically positioned, this configuration ensures that when the dispensing head 3 contacts the two channels 48, it is always located at the junction of the two channels 48, i.e., at the V-shaped opening. The advantage is that any residual adhesive at the dispensing head 3 will be cleaned starting from the junction of the two channels 48. Most of the residual adhesive will be left in the recessed area of ​​the junction by the sponge pad 47. Even if a significant amount of residual adhesive needs to be cleaned during dispensing, compared to the aforementioned X-shaped channel 48 configuration, the residual adhesive will accumulate at the V-shaped opening, rather than at the end of the channel 48. This prevents excessive residual adhesive accumulation at the end of the channel 48 on the sponge pad 47, which could then overflow and drip. It should be understood that even in this embodiment, excessive residual adhesive accumulation can still cause overflow. Therefore, regardless of the configuration, timely cleaning and replacement of the sponge pad 47 is essential. Of course, under normal use, the amount of residual adhesive is minimal, and it generally only needs to be replaced periodically based on the dispensing situation.

[0047] With the central axis of the second rotating shaft 44 parallel to the central axis of the first rotating shaft 43, the second driving member 46 can also be driven by the second motor in the same way as described above. It is only necessary to adjust the position of the second motor according to the position of the second rotating shaft 44, which will not be elaborated here.

[0048] Alternatively, a counterweight can be used to passively drive the swing seat 42 to rotate. Unlike the aforementioned counterweight block 461 configuration, the counterweight here is a spherical counterweight ball 467. A closed-end moving channel 468 is formed at the bottom of the swing seat 42 along its length. The two ends of the moving channel 468 are located on either side of the second rotating shaft 44. The counterweight ball 467 can move freely within the moving channel 468. Figure 8 As shown, when the swing seat 42 moves to the side of the dispensing head 3, the counterweight ball 467 moves in the inclined moving channel 468. When the counterweight ball 467 moves to one end of the moving channel 468, the other end of the swing seat 42 tilts up. When the counterweight ball 467 moves to the other end of the moving channel 468, the end away from the counterweight ball 467 tilts up, thus completing the switching of the two channels 48.

[0049] It should be noted that two moving channels 468 can be set to improve the stability of switching. However, the number of moving channels 468 and the weight of the counterweight ball 467 will also increase the energy consumption of the rotating frame 41. For the case of using the sponge pad 47, it is generally only necessary to set one moving channel 468 and one counterweight ball 467.

[0050] Furthermore, when switching channels 48 using counterweight 461 or counterweight ball 467, the rotating frame 41 needs to rotate at an angle that allows the counterweight ball 467 or counterweight 461 to move relative to the swing seat 42 under its own weight. Therefore, under normal circumstances, the first motor 451 can usually drive the first rotating shaft 43 to rotate. The method of using counterweight 461 and counterweight ball 467 is suitable for dispensing operations with a slow dispensing cycle, such as large-sized displays (large displays will move a long distance along one side when dispensing from the dispensing head 3, and the dispensing head 3 will only lift up when switching to other sides, resulting in a slow cycle).

[0051] like Figure 9 As shown, the two channels 48 can also be arranged in parallel (modified example). The second driving member 46 is an electric telescopic rod, which is installed on the rotating frame 41. Its output end is connected to the swing seat 42. The swing seat 42 is slidably connected to the rotating frame 41. The electric telescopic rod drives the swing seat 42 to translate, thereby completing the switching of the channel 48.

[0052] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the present invention.

Claims

1. A display screen assembly dispensing device, comprising a dispensing module (1), the dispensing module (1) including a base (2) and a dispensing head (3), characterized in that, A cleaning mechanism (4) is installed on one side of the base (2). The cleaning mechanism (4) includes a rotating frame (41) and a swing seat (42). The rotating frame (41) is rotatably mounted on the bottom of the base (2) via a first rotating shaft (43). The swing seat (42) is rotatably mounted on the rotating frame (41) via a second rotating shaft (44). The first rotating shaft (43) is connected to a first driving member (45) for its rotation. The second rotating shaft (44) is connected to a second driving member (46) for driving its rotation. A sponge pad (47) is installed on the swing seat (42). The sponge pad (47) has two symmetrically opened grooves (48). When the rotating frame (41) rotates, the dispensing end of the dispensing head (3) is located on the moving path of the sponge pad (47), and one of the channels (48) is in frictional contact with the dispensing head (3). After the sponge pad (47) passes the dispensing head (3), the second driving member (46) drives the swing seat (42) to rotate so that when the rotating frame (41) returns, the other channel (48) is in frictional contact with the dispensing head (3).

2. The display screen assembly dispensing equipment according to claim 1, characterized in that, The central axis of the second rotating shaft (44) is set in the vertical direction, and the two channels (48) are arranged in an X-shape.

3. The display screen assembly dispensing equipment according to claim 2, characterized in that, The second driving member (46) includes a counterweight (461). When the swing seat (42) rotates around the central axis of the first rotating shaft (43) to both sides of the dispensing head (3), the counterweight (461) drives the swing seat (42) to rotate around the central axis of the second rotating shaft (44) under its own weight.

4. The display screen assembly dispensing equipment according to claim 3, characterized in that, The counterweight (461) is fixedly connected to the end of the second rotating shaft (44) via the first connecting rod (462), and the length direction of the first connecting rod (462) is perpendicular to the axial direction of the second rotating shaft (44).

5. The display screen assembly dispensing equipment according to claim 3, characterized in that, The counterweight (461) is connected to a second link (463) on one side. The second link (463) is fixedly installed on the support (464). The support (464) is rotatably connected to the rotating frame (41). The end of the second link (463) near the swing seat (42) is slidably connected to a third link (465). A spring (466) is sleeved on the second link (463) located between the support (464) and the third link (465). The end of the third link (465) is slidably connected to the side wall of the swing seat (42).

6. The display screen assembly dispensing equipment according to claim 1, characterized in that, The central axis of the second rotating shaft (44) is parallel to the central axis of the first rotating shaft (43), and the two channels (48) are arranged opposite to each other and connected to each other.

7. The display screen assembly dispensing equipment according to claim 6, characterized in that, The two channels (48) are inclined downward on opposite sides.

8. The display screen assembly dispensing equipment according to claim 7, characterized in that, The second driving component (46) includes a counterweight ball (467). The bottom of the swing seat (42) is provided with a moving channel (468) with both ends closed along its length. The two ends of the moving channel (468) are located on both sides of the second rotating shaft (44). The counterweight ball (467) can move freely within the moving channel (468).

9. A display screen assembly dispensing device according to claim 5 or 8, characterized in that, It also includes a blocking element (49), which includes two blocking blocks (491) mounted on the rotating frame (41) and located on the path of the swing seat (42) rotating about the second rotating shaft (44) to limit the rotation angle of the swing seat (42) under the drive of the second driving element (46).

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