A liquid crystal display screen dispensing device

Abstract

This utility model discloses a liquid crystal display screen dispensing device, relating to the field of liquid crystal display screen processing technology. It includes a glue tube, a ejector pin, and a dispensing head. The glue tube has an internal partition layer. A first connection port and a second connection port are located on one side of the glue tube. The first connection port communicates with the interior of the partition layer, and the second connection port communicates with the interior of the glue tube. The other ends of the first and second connection ports are connected to an air pump, which is installed on one side of the glue tube. When dispensing stops, the air pump stops pumping air into the partition layer, and under the action of a spring, it pushes a piston downwards to reset. This allows the piston to drive the ejector pin to insert into the dispensing head, thereby clearing the interior of the dispensing head and avoiding manual cleaning, greatly improving ease of use.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display processing technology, specifically to a liquid crystal display dispensing device. Background Technology

[0002] In the production process of LCD screens, the dispensing process is one of the key steps, and its quality directly affects the performance and reliability of the screen. A search revealed a Chinese patent publication number CN222112358U that discloses an LCD screen dispensing device. While this device, through the arrangement of components inside the glue tank, can use a micro-pump to spray liquid onto the inside of the tank, and simultaneously, during the agitation of the glue, a scraper continuously scrapes against the inner wall of the tank to ensure the glue does not adhere to it, thus facilitating subsequent liquid spraying and cleaning of the inner wall, the small diameter of the dispensing head means that if the glue inside the dispensing head is not cleaned in time, it can become clogged, requiring manual cleaning and reducing the ease of use of the device. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a liquid crystal display screen dispensing device, which solves the problem mentioned in the background art that existing dispensing devices require manual cleaning at regular intervals during use, thus reducing the convenience of use.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a liquid crystal display screen dispensing device, comprising a glue tube, a ejector pin, and a dispensing head. The glue tube has an internal partition layer. A first connection port and a second connection port are provided on one side of the glue tube. The first connection port communicates with the interior of the partition layer, and the second connection port communicates with the interior of the glue tube. The other ends of the first and second connection ports are connected to an air pump. The air pump is installed on one side of the glue tube, and the other side of the glue tube communicates with a glue inlet. A slot is formed at the top of the partition layer, and a piston is provided at the top of the partition layer. A spring is provided at the top of the piston, and an ejector pin is inserted inside the piston. The dispensing head is installed at the bottom of the glue tube, and a mounting plate is welded to one side of the glue tube.

[0005] Preferably, a threaded rod is provided at one end of the top of the tubing, and the bottom end of the threaded rod is rotatably connected to the adjusting block. The threaded rod is threadedly connected to one end of the top of the tubing, and the top of the threaded rod is welded to the knob. By setting the threaded rod, the adjusting block, and the knob, the user can adjust the up and down position of the threaded rod by rotating the knob. The up and down movement of the threaded rod will drive the adjusting block to move, thereby applying different pressures to the spring in the device. This design allows the user to flexibly adjust the spring pressure according to actual needs, thereby changing the up and down movement stroke and force of the ejector pin to adapt to the viscosity of different adhesives and the requirements of the dispensing process.

[0006] Preferably, one end of the ejector pin has a conical shape and is inserted into the dispensing head. A release layer is provided on the one-way valve and the outer wall of the ejector pin to prevent adhesive adhesion. The conical shape of the ejector pin allows for more precise insertion into the dispensing head. The conical structure better conforms to the inner wall of the dispensing head during insertion, effectively removing any residual adhesive and preventing clogging caused by adhesive solidification.

[0007] Preferably, both the first and second connection ports are one-way valves. The first and second connection ports are respectively connected to the air pump and the inside of the hose. The one-way valve can effectively prevent the adhesive from flowing back during the dispensing process due to the air pump stopping or pressure changes. Backflow may cause the adhesive to accumulate and solidify in the pipe, thereby blocking the pipe and affecting the normal operation of the equipment.

[0008] This utility model provides a liquid crystal display screen dispensing device. It has the following beneficial effects:

[0009] (1) The liquid crystal display screen dispensing device, when in use, glue is added into the glue tube through the glue inlet, and air is pumped into the glue tube through the air pump. The air pushes the glue in the glue tube to be discharged. At the same time as the air pump pumps air into the glue tube, air is also pumped into the separator layer through the first connection port. The air in the separator layer pushes the piston upward, which in turn drives the ejector pin to move upward, so that one end of the ejector pin can be moved out of the dispensing head. The glue can then be discharged through the bottom of the dispensing head for dispensing. When dispensing stops, the air pump stops pumping air into the separator layer. Under the action of the spring, the piston can be pushed downward to slide back to its original position, so that the piston can drive the ejector pin to be inserted into the dispensing head. This can clear the inside of the dispensing head, thereby avoiding manual cleaning and greatly improving the convenience of use.

[0010] (2) The liquid crystal display screen dispensing device can rotate a knob to drive a threaded rod to rotate. As the threaded rod rotates, it can push the adjusting block downward, thereby compressing the spring and adjusting the spring pressure, which is beneficial to improving the adjustability of the device.

[0011] This solves the problem that existing dispensing devices require manual cleaning at regular intervals, which reduces their ease of use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the hose structure of this utility model;

[0015] Figure 4 This is a side view of the structure of this utility model;

[0016] Figure 5 This is a top view of the structure of this utility model.

[0017] In the diagram, 1. Adhesive tube; 2. Separator layer; 3. First connection port; 4. Second connection port; 5. Air pump; 6. Adhesive injection port; 7. Piston; 8. Ejector pin; 9. Dispensing head; 10. Spring; 11. Adjusting block; 12. Threaded rod; 13. Mounting plate; 14. Knob. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1:

[0020] Please see Figure 1-5This utility model provides a technical solution: a liquid crystal display screen dispensing device, including a glue tube 1, a pin 8, and a dispensing head 9. The glue tube 1 has a partition layer 2 inside. A first connection port 3 and a second connection port 4 are provided on one side of the glue tube 1. The first connection port 3 communicates with the interior of the partition layer 2, and the second connection port 4 communicates with the interior of the glue tube 1. The other ends of the first connection port 3 and the second connection port 4 are connected to an air pump 5. The air pump 5 is installed on one side of the glue tube 1, and the other side of the glue tube 1 communicates with a glue inlet 6. A slot is formed at the top of the partition layer 2, and a piston 7 is provided at the top of the partition layer 2. A spring 10 is provided at the top of the piston 7, and the pin 8 is inserted inside the piston 7. The dispensing head 9 is installed at the bottom of the glue tube 1, and a mounting plate 13 is welded to one side of the glue tube 1. One end of the pin 8 has a conical shape and is inserted into the dispensing head 9. Both the first connection port 3 and the second connection port 4 are one-way valves. When in use, glue is added into the glue tube 1 through the glue inlet 6, and air is pumped into the glue tube 1 by the air pump 5. The air pushes the glue inside the glue tube 1 out. At the same time, the air pump 5 pumps air into the glue tube 1 through the first connection port 3, which in turn pumps air into the partition layer 2. The air inside the partition layer 2 pushes the piston 7 upward, which in turn moves the ejector pin 8 upward, allowing one end of the ejector pin 8 to move out of the dispensing head 9. This allows the glue to be discharged from the bottom of the dispensing head 9 to dispense glue onto the display screen. When dispensing stops, the air pump 5 stops pumping air into the partition layer 2, and the piston 7 is pushed downward to return to its original position by the action of the spring 10. This allows the piston 7 to move the ejector pin 8 into the dispensing head 9, thereby clearing the inside of the dispensing head 9 and avoiding manual cleaning, which greatly improves the convenience of use.

[0021] Example 2:

[0022] This utility model provides a technical solution: a liquid crystal display screen dispensing device, wherein a threaded rod 12 is provided at one end of the top of the glue tube 1, and one end of the threaded rod 12 is rotatably connected to an adjusting block 11. The threaded rod 12 is threadedly connected to one end of the top of the glue tube 1, and the top of the threaded rod 12 is welded to a knob 14. By rotating the knob 14, the knob 14 can drive the threaded rod 12 to rotate. While the threaded rod 12 is rotating, it can push the adjusting block 11 downward, thereby causing the adjusting block 11 to compress the spring 10, thereby adjusting the pressure of the spring 10, which is beneficial to improving the adjustability of the device.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A liquid crystal display screen dispensing device, characterized in that: The device includes a tubing (1), a pin (8), and a dispensing head (9). The tubing (1) has a partition layer (2) inside. The tubing (1) has a first connection port (3) and a second connection port (4) on one side. The first connection port (3) communicates with the interior of the partition layer (2), and the second connection port (4) communicates with the interior of the tubing (1). The other end of the first connection port (3) and the second connection port (4) are connected to an air pump (5). The air pump (5) is installed on one side of the tubing (1), and the other side of the tubing (1) is connected to a glue inlet (6). The partition layer (2) has a slot at the top and a piston (7) is installed at the top of the partition layer (2). The piston (7) has a spring (10) at the top and a pin (8) inserted inside the piston (7). The dispensing head (9) is installed at the bottom of the tubing (1), and a mounting plate (13) is welded to one side of the tubing (1).

2. The liquid crystal display screen dispensing device according to claim 1, characterized in that: The top end of the hose (1) is provided with a threaded rod (12), the bottom end of the threaded rod (12) is rotatably connected to the adjusting block (11), the threaded rod (12) is threadedly connected to the top end of the hose (1), and the top of the threaded rod (12) is welded to the knob (14).

3. The liquid crystal display screen dispensing device according to claim 1, characterized in that: The bottom end of the ejector pin (8) has a conical structure and is inserted into the dispensing head (9).

4. The liquid crystal display screen dispensing device according to claim 1, characterized in that: Both the first connection port (3) and the second connection port (4) are one-way valves.

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