Nozzle for dispensing narrow frame of vehicle-mounted display screen and dispensing machine

Abstract

The utility model provides a nozzle for dispensing a narrow frame of a vehicle-mounted display screen and a dispensing machine, and belongs to the technical field of vehicle-mounted screen dispensing, the nozzle comprises a dispensing nozzle and a glue injection pipe, a first connecting ring component is mounted outside the dispensing nozzle, and the first connecting ring component comprises a first connecting ring, an insertion block and a clamping groove formed in the outer side of the insertion block; a second connecting ring component is mounted outside the glue injection pipe; the second connecting ring component comprises a second connecting ring, a slot hole and two semi-arc blocks; a butt joint ring groove matched with the top of the dispensing nozzle is formed between the bottom of the glue injection pipe and the second connecting ring. A dispensing nozzle of the device can be conveniently disassembled and assembled through an external first connecting ring component and a second connecting ring component outside a glue injection pipe, the dispensing nozzle can be rapidly replaced only by aligning and inserting corresponding inserting blocks and inserting groove holes and finally closing two semi-arc blocks to be clamped into an internal connector of a clamping groove, and the replacement efficiency is greatly improved. And different dispensing requirements of the vehicle-mounted display screen are met.

Description

Technical Field

[0001] This utility model mainly relates to the field of automotive screen dispensing technology, specifically to a nozzle and dispensing machine for dispensing adhesive to narrow bezels of automotive displays. Background Technology

[0002] As an important component of smart cockpits and in-vehicle entertainment, in-vehicle displays are facing increasingly higher requirements due to the rapid development of new energy vehicles. During the manufacturing process of these displays, dispensing machines are needed to bond non-visible areas.

[0003] In the dispensing process, dispensing nozzles are typically used. These nozzles are designed to operate under various spray conditions, so selecting the appropriate nozzle ensures optimal spray performance. Common dispensing nozzles are usually used in conjunction with dispensing machines. For ease of use, the common connection method is through a pipe, where the adhesive from the dispensing machine is fed into the nozzle. The nozzle head is then aimed at the target area, and the adhesive is sprayed out. This is the typical usage of dispensing nozzles. However, when dispensing adhesive to different structures or equipment, it is necessary to change the dispensing nozzle for different spray conditions.

[0004] The common threaded connection method makes the dispensing nozzle body difficult to disassemble and install, and cannot be quickly disassembled. At the same time, repeated disassembly and installation can easily cause misalignment of the nozzle, resulting in the nozzle failing to seal properly. Utility Model Content

[0005] This utility model mainly provides a nozzle and dispensing machine for dispensing adhesive to narrow bezels of vehicle-mounted displays to solve the technical problems mentioned in the background art.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] A nozzle for dispensing adhesive with a narrow bezel in a vehicle display screen includes a dispensing nozzle and an injection tube. A first connecting ring component is installed on the outside of the dispensing nozzle. The first connecting ring component includes a first connecting ring installed on the outside of the dispensing nozzle, inserts installed on both sides of the top of the first connecting ring, and a slot provided on the outside of the inserts.

[0008] The dispensing tube is equipped with a second connecting ring component. The second connecting ring component includes a second connecting ring installed on the outside of the dispensing tube, slot holes on both sides of the second connecting ring that are adapted to the insert blocks, and two semi-circular blocks rotatably connected to the top of the second connecting ring via a rotating shaft. A mating ring groove adapted to the top of the dispensing nozzle is provided between the bottom of the dispensing tube and the second connecting ring.

[0009] Optionally, the distance between the bottom of the insert block and the bottom surface of the slot is the same as the thickness of the second connecting ring.

[0010] Optionally, the top of the first connecting ring between the two inserts is provided with two mating shafts, and the second connecting ring is provided with two mating slots that are adapted to the mating shafts.

[0011] Optionally, magnetic blocks that attract each other are inlaid on the non-rotating ends of the two semicircular blocks on their adjacent sides.

[0012] Optionally, the bottom outer diameter of the dispensing tube is adapted to the top inner diameter of the dispensing nozzle, and a sealing ring is installed on the bottom of the dispensing tube.

[0013] Optionally, the diameter of the dispensing nozzle is 0.075 mm.

[0014] A dispensing machine includes a dispensing machine body and a nozzle mounted on the dispensing machine body, wherein the nozzle is the nozzle described in any one of the preceding claims.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The dispensing nozzle of this device can be easily disassembled and assembled via the external first connecting ring component and the external second connecting ring component of the dispensing tube. Simply align the corresponding insert block and slot hole and insert it, and finally close the two semi-circular blocks to make it snap into the internal interface of the slot, so as to realize the quick replacement of the dispensing nozzle and meet the different dispensing needs of the vehicle display screen.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the dispensing nozzle and dispensing tube area of ​​this utility model;

[0019] Figure 2 This is a schematic diagram of the dispensing nozzle area structure of this utility model;

[0020] Figure 3 This is a first-view schematic diagram of the glue injection tube area structure of this utility model.

[0021] Figure 4 This is a second-view schematic diagram of the glue injection tube area structure of this utility model.

[0022] In the diagram: 10, dispensing nozzle; 20, dispensing tube; 21, mating ring groove; 22, sealing ring; 30, first connecting ring component; 31, first connecting ring; 32, insert block; 321, slot; 33, mating shaft; 40, second connecting ring component; 41, second connecting ring; 411, slot hole; 412, mating groove hole; 42, semi-circular block; 43, magnetic block. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] For the implementation examples, please refer to the appendix. Figure 1-4 A nozzle for dispensing adhesive to a narrow bezel of an in-vehicle display screen includes a dispensing nozzle 10 and an injection tube 20. A first connecting ring component 30 is mounted on the outside of the dispensing nozzle 10. The first connecting ring component 30 includes a first connecting ring 31 mounted on the outside of the dispensing nozzle 10, inserts 32 mounted on both sides of the top of the first connecting ring 31, and a slot 321 disposed on the outside of the inserts 32.

[0027] The dispensing tube 20 is externally mounted with a second connecting ring component 40. The second connecting ring component 40 includes a second connecting ring 41 installed on the outside of the dispensing tube 20, slot holes 411 located on both sides of the second connecting ring 41 and adapted to the insert block 32, and two semi-circular blocks 42 rotatably connected to the top of the second connecting ring 41 via a rotating shaft. A mating ring groove 21 adapted to the top of the dispensing nozzle 10 is provided between the bottom of the dispensing tube 20 and the second connecting ring 41.

[0028] In this embodiment, it should be noted that the dispensing nozzle 10 of this device can be easily disassembled and assembled through the external first connecting ring component 30 and the external second connecting ring component 40 of the dispensing tube 20. Simply align the corresponding insert block 32 and slot hole 411 and insert it, and finally close the two semi-circular arc blocks 42 to make it snap into the internal interface of the slot 321, so as to realize the quick replacement of the dispensing nozzle 10 and meet the different dispensing needs of the vehicle display screen.

[0029] For details, please refer to the appendix. Figure 1 The distance between the bottom of the insert 32 and the bottom surface of the slot 321 is the same as the thickness of the second connecting ring 41.

[0030] In this embodiment, it should be noted that after the dispensing nozzle 10 and the dispensing tube 20 are connected, and the insert block 32 is inserted into the slot hole 411, when the first connecting ring 31 and the second connecting ring 41 are in contact, the semi-circular block 42 is closed, and the semi-circular block 42 can be smoothly inserted into the slot 321, thereby making the dispensing nozzle 10 and the dispensing tube 20 conveniently and stably connected.

[0031] For details, please refer to the appendix. Figure 2 and attached Figure 3 The top of the first connecting ring 31 between the two inserts 32 is provided with two docking shafts 33, and the second connecting ring 41 is provided with two docking slots 412 that are adapted to the docking shafts 33.

[0032] In this embodiment, it should be noted that when the dispensing nozzle 10 needs to be installed, the mating shaft 33 and the mating slot hole 412 are aligned and inserted. This facilitates the alignment of the insert block 32 and the slot hole 411, and also increases the stability of the two connecting rings after connection.

[0033] For details, please refer to the appendix. Figure 3 The two semi-circular blocks 42 have magnetic blocks 43 that attract each other embedded on their non-rotating ends close to each other.

[0034] In this embodiment, it should be noted that when the two semicircular blocks 42 are closed, the magnetic blocks 43 attract each other and stick together, thereby ensuring that the semicircular blocks 42 will not loosen.

[0035] For details, please refer to the appendix. Figure 4 The bottom outer diameter of the dispensing tube 20 is adapted to the top inner diameter of the dispensing nozzle 10, and a sealing ring 22 is installed on the outside of the bottom end of the dispensing tube 20.

[0036] In this embodiment, it should be noted that the sealing ring 22 can fill the gap between the glue injection tube 20 and the glue dispensing nozzle 10 after they are connected, thus preventing glue leakage.

[0037] Optionally, the diameter of the dispensing nozzle 10 is 0.075 mm.

[0038] A dispensing machine includes a dispensing machine body and a nozzle mounted on the dispensing machine body, wherein the nozzle is the nozzle described in any one of the preceding claims.

[0039] In this embodiment, it should be noted that with the advent of the large-screen era and the continuous innovation of high screen-to-body ratio screens, the area of ​​the non-visible bonding part is also getting smaller and smaller. The original 2mm or even 1.5mm hot melt adhesive bonding width can no longer meet the requirements of high screen-to-body ratio. Traditionally, a narrower adhesive width is achieved by increasing the dispensing speed, but this method has certain limitations. The dispensing width of ordinary hot melt adhesive is 1.1-1.3mm, and the adhesive width after pressing is all above 1.5mm. However, excessively fast dispensing speed not only cannot guarantee the required narrow adhesive width, but also easily causes adhesive pulling, adhesive breakage, and dry adhesive, which is very risky. Although traditional threaded rod dispensing valves can ensure uniform dispensing, if the dispensing nozzle diameter is too small, the dispensing nozzle may be blocked due to hot melt adhesive skinning. At the same time, the adhesive will spin according to the rotation direction of the screw when exiting the needle, which cannot guarantee that the dispensing path is straight. In addition, the dispensing width of threaded rod needles is generally 1.1-1.3mm, which cannot meet the requirements of narrow bezel dispensing. In order to minimize the glue width after dispensing, the dispensing speed has to be increased, which leads to frequent glue line pulling and glue breakage. This not only greatly reduces production efficiency, but also significantly increases production costs due to defects caused by dispensing.

[0040] This dispensing machine can employ a pulse jet valve, paired with a 0.075mm or 0.05mm nozzle and a 1mm or 0.75mm pulse striker. Using hot melt adhesive with an open time of 3-4 minutes, and with a pulse frequency of ≥435Hz, a dispensing speed of 40-70mm / s, and a nozzle relative height of 5-10mm, it achieves narrow bezel dispensing. The equipment uses neutral open-time hot melt adhesive, which is melted at 120℃. With the 0.075mm nozzle and a 435Hz pulse frequency, the striker propels the adhesive out in a cone shape onto the dispensing surface, covering a width of 0.5-0.6mm and a height of 0.2-0.25mm. This allows for assembly and bonding, ensuring both sufficient bonding height and a sufficiently narrow bonding surface. This dispensing machine facilitates the application and widespread adoption of higher screen-to-body ratio automotive screens in the future.

[0041] The specific operation method of this utility model is as follows:

[0042] When the dispensing nozzle 10 and the dispensing tube 20 need to be connected, the semi-circular block 42 is pulled open, and then the insert block 32 is inserted into the slot hole 411. When the first connecting ring 31 and the second connecting ring 41 are in contact, the semi-circular block 42 is closed, and the semi-circular block 42 can be smoothly inserted into the slot 321, so that the dispensing nozzle 10 and the dispensing tube 20 can be connected conveniently and stably. The subsequent disassembly is the same.

[0043] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A nozzle for dispensing adhesive to a narrow bezel of an in-vehicle display screen, comprising a dispensing nozzle (10) and an injection tube (20), characterized in that, The dispensing nozzle (10) is equipped with a first connecting ring component (30), which includes a first connecting ring (31) installed on the outside of the dispensing nozzle (10), inserts (32) installed on both sides of the top of the first connecting ring (31), and a slot (321) provided on the outside of the inserts (32). The dispensing tube (20) is equipped with a second connecting ring component (40). The second connecting ring component (40) includes a second connecting ring (41) installed on the outside of the dispensing tube (20), slot holes (411) provided on both sides of the second connecting ring (41) and adapted to the insert (32), and two semi-circular blocks (42) rotatably connected to the top of the second connecting ring (41) by a rotating shaft. A docking ring groove (21) adapted to the top of the dispensing nozzle (10) is provided between the bottom of the dispensing tube (20) and the second connecting ring (41).

2. The nozzle for dispensing adhesive to a narrow bezel of an in-vehicle display screen according to claim 1, characterized in that, The distance between the bottom of the insert (32) and the bottom surface of the slot (321) is the same as the thickness of the second connecting ring (41).

3. The nozzle for dispensing adhesive to a narrow bezel of an in-vehicle display screen according to claim 1, characterized in that, The top of the first connecting ring (31) between the two inserts (32) is provided with two docking shafts (33), and the second connecting ring (41) is provided with two docking slots (412) that are adapted to the docking shafts (33).

4. The nozzle for dispensing adhesive to a narrow bezel of an in-vehicle display screen according to claim 1, characterized in that, The two semicircular blocks (42) have magnetic blocks (43) that attract each other on their non-rotating ends close to each other.

5. The nozzle for dispensing adhesive to a narrow bezel of an in-vehicle display screen according to claim 1, characterized in that, The bottom outer diameter of the dispensing tube (20) is adapted to the top inner diameter of the dispensing nozzle (10), and a sealing ring (22) is installed on the bottom of the dispensing tube (20).

6. The nozzle for dispensing adhesive to a narrow bezel of an in-vehicle display screen according to claim 1, characterized in that, The diameter of the dispensing nozzle (10) is 0.075 mm.

7. A dispensing machine, comprising a dispensing machine body and a nozzle mounted on the dispensing machine body, characterized in that, The nozzle is the nozzle according to any one of claims 1 to 6.

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