High-temperature hot melting adhesive device

Abstract

The utility model discloses a high-temperature hot melting glue device which comprises a mounting plate, a heating barrel, a needle nozzle, a glue barrel, an air joint, a first heating pipe, a first thermocouple, a needle nozzle heating block, a second heating pipe and a second thermocouple. An insulating layer is arranged around the heating barrel, and a glue runner is arranged in the heating barrel; the needle nozzle is installed at the lower end of the heating barrel and communicated with the glue runner, and a heat preservation head is arranged at the glue outlet end of the needle nozzle; the other end of the rubber cylinder extends out of the upper end of the heating barrel for a certain distance; the air joint is communicated with the inner cavity of the rubber sleeve; the first heating pipe is arranged in the heating barrel; the working end of the first thermocouple is arranged in the heating barrel, and the cold end is connected with the first instrument; the needle nozzle heating block is fixed at the lower end of the heating barrel and surrounds the side peripheral surface of the needle nozzle; a pipe body of the second heating pipe is arranged in the needle nozzle heating block; the working end of the second thermocouple is arranged in the needle nozzle heating block, and the cold end is connected with the second instrument. The utility model can maintain the temperature in the alloy rubber sleeve to be uniform.

Description

TECHNICAL FIELD

[0001] The utility model relates to 0LED / LCD / LED display screen processing technical field, and concretely relates to a high temperature hot melting point gluing device. BACKGROUND

[0002] In the field of flat panel display, the point gluing process is the core link of module production. The high width ratio that can be achieved by the current conventional point gluing process is small, and it is difficult to meet the narrow and high point gluing demand. In the face of such special process requirements, it is difficult to solve by means of mature point gluing process, and a large amount of manpower, material resources and time must be invested to develop a new scheme, and the development result has uncertainty. With the wide application of 0LED screen in the field of mobile phones, wearable devices and the like, consumers' pursuit of narrow frame is becoming more and more strong, resulting in a substantial increase in the requirement of the original frame sealing glue process on the height-width ratio.

[0003] At present, the industry generally adopts mold glue filling process to meet this demand, however, the process has gradually touched the bottleneck, and its patent is controlled by foreign manufacturers.

[0004] In view of the current industry demand and external environmental factors, it is urgent to develop a new type of point gluing device to realize the height-width ratio requirement in the point gluing mode and meet the production demand of the extreme narrow frame of mobile phone frame. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a high temperature hot melting point gluing device, which aims to solve the problems that the original point gluing process cannot meet the requirements due to the increasing demand of consumers for narrow frame, and the mold glue injection process is limited, so as to realize efficient and high-quality point gluing of narrow frame.

[0006] To solve the above technical problems, the utility model realizes the following scheme: a high temperature hot melting point gluing device of the utility model, comprising:

[0007] A mounting plate;

[0008] A heating barrel is fixed on the mounting plate after setting a heat preservation layer around the barrel, and the inside of the barrel has a glue flow channel;

[0009] A needle nozzle is installed at the lower end of the heating barrel, the needle nozzle is communicated with the glue flow channel, and the glue outlet end of the needle nozzle is provided with a heat preservation head;

[0010] A glue cylinder, one end of the cylinder is arranged in the inside of the heating barrel, and the cylinder cavity of the glue cylinder is communicated with the glue flow channel of the heating barrel, and the other end of the glue cylinder extends out of the upper end of the heating barrel by a distance;

[0011] A gas connector is fixed on the end of the extending end of the glue cylinder, and the gas connector is communicated with the inner cavity of the glue cylinder;

[0012] A first heating pipe is provided with at least one group, which is arranged in the interior of the heating barrel;

[0013] A first thermocouple is arranged in the interior of the heating barrel, and its cold end is connected with a first instrument;

[0014] A needle nozzle heating block is fixed to the lower end of the heating barrel and surrounds the side surface of the needle nozzle;

[0015] A second heating pipe is arranged in the needle nozzle heating block;

[0016] A second thermocouple is arranged in the needle nozzle heating block, and its cold end is connected with a second instrument.

[0017] Further, a scalding protection cover is connected with the mounting plate, and the heating barrel, the rubber cylinder and the needle nozzle heating block are covered.

[0018] Further, the extending part of the rubber cylinder is clamped and fixed by a positioning block, and one end of the positioning block is also connected and fixed with the mounting plate.

[0019] Further, the heating barrel is a metal heating barrel.

[0020] Further, the rubber cylinder is an alloy rubber cylinder.

[0021] Compared with the prior art, the utility model has the beneficial effects that;

[0022] 1. The metal heating barrel of the utility model is fixed on the bottom plate, and the alloy rubber cylinder is arranged in the interior of the metal heating barrel. The first heating pipe and the first thermocouple are inserted into the metal heating barrel. The first heating pipe is used for providing heat, so that the temperature in the metal heating barrel is increased to melt the solid rubber material in the barrel. The first thermocouple is responsible for collecting temperature data and feeding back to the temperature controller. After receiving the temperature signal, the temperature controller adjusts the heating power of the heating pipe to realize the temperature rise and fall control, so that the internal temperature of the alloy rubber cylinder is maintained uniform.

[0023] 2. The heat preservation head of the utility model is installed at the lower end of the metal heating barrel. The second heating pipe and the second thermocouple are inserted into the interior of the needle nozzle heating block. The second heating pipe provides heating function, and the second thermocouple feeds back temperature. The needle nozzle temperature controller receives the temperature signal transmitted by the second thermocouple, adjusts the heating power of the second heating pipe, and maintains the internal temperature of the needle nozzle heating block uniform. The heat preservation head ensures that the glue discharging temperature of the needle nozzle is maintained in a temperature interval, and provides stable temperature conditions for the dispensing.

[0024] 3.The auxiliary assembly of the utility model, the heat preservation layer surrounds the metal heating barrel four sides, effectively reduces the influence of ambient temperature to the heating center, improves the energy utilization efficiency, ensures the stability of the device temperature. The anti-scald protective cover is installed at the outermost part of the device, prevents the operator from accidentally contacting the high-temperature components and causing scald, ensures the operation safety. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the structure diagram of the high-temperature hot melting point glue device of the utility model.

[0026] Figure 2 It is Figure 1 the enlarged view of the upper area.

[0027] Figure 3 It is Figure 1 the enlarged view of the lower area.

[0028] Markings in the drawings: mounting plate 1, heat preservation layer 2, needle nozzle heating block 3, heat preservation head 4, second heating pipe 5, second thermocouple 6, anti-scald protective cover 7, heating barrel 8, glue cylinder 9, gas connector 10, first thermocouple 11, first heating pipe 12. First thermocouple 11, first heating pipe 12. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and definitely defined. Obviously, the described embodiments of the utility model are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] In addition, the technical features involved in different embodiments of the utility model described below can be combined with each other as long as there is no conflict between them.

[0031] Embodiment 1: The specific structure of the utility model is as follows:

[0032] Please refer to the drawings Figures 1-3 The utility model discloses a high-temperature hot melting point glue device, which comprises a mounting plate 1, a heating barrel 8, a needle nozzle, a glue cylinder 9, a gas connector 10,

[0033] The mounting plate 1 is vertically arranged. The mounting plate 1 is vertically arranged, which provides a stable and reliable mounting base for the whole device and ensures the stability of the device during operation.

[0034] The heating barrel 8 is fixed to the mounting plate 1 after being provided with the heat preservation layer 2 around the heating barrel 8, and has a glue flow channel in the inside;

[0035] A needle nozzle is mounted to the lower end of the heating barrel 8, the needle nozzle is communicated with the glue flow channel, and a glue outlet end of the needle nozzle is provided with a heat preservation head 4;

[0036] A glue cylinder 9 is provided with a cylinder body at one end of the glue cylinder 9 and arranged in the inside of the heating barrel 8, and the cylinder cavity of the glue cylinder 9 is communicated with the glue flow channel of the heating barrel 8, and the other end of the glue cylinder 9 is extended out of the upper end of the heating barrel 8 by a distance;

[0037] A gas connector 10 is fixed to the extended end of the glue cylinder 9 and communicated with the inner cavity of the glue cylinder 9;

[0038] The first heating pipe 12 is provided with at least one group, and the first heating pipe 12 is arranged in the inside of the heating barrel 8;

[0039] The working end of the first thermocouple 11 is arranged in the inside of the heating barrel 8, and the cold end of the first thermocouple 11 is connected with the first instrument;

[0040] The needle nozzle heating block 3 is fixed to the lower end of the heating barrel 8 and surrounds the side peripheral surface of the needle nozzle;

[0041] The pipe body of the second heating pipe 5 is arranged in the needle nozzle heating block 3;

[0042] The working end of the second thermocouple 6 is arranged in the needle nozzle heating block 3, and the cold end of the second thermocouple 6 is connected with the second instrument.

[0043] The high-temperature hot melting point glue device further comprises an anti-scald protective cover 7, the anti-scald protective cover 7 is connected with the mounting plate 1, the heating barrel 8, the glue cylinder 9 and the needle nozzle heating block 3 are covered, and an effective protective barrier is formed. Its main function is to prevent the operator from accidentally contacting the high-temperature components during the operation of the device, so as to avoid scalding accidents and provide solid protection for the personal safety of the operator.

[0044] The extended part of the glue cylinder 9 is clamped and fixed by a positioning block, and one end of the positioning block is further connected and fixed with the mounting plate 1.

[0045] The heating barrel 8 is a metal heating barrel.

[0046] The glue cylinder 9 is an alloy glue cylinder.

[0047] Specifically, the metal heating barrel 8 is firmly fixed on the mounting plate 1 after a heat preservation layer 2 is arranged around the heating barrel 8. The heating barrel 8 is carefully designed with a glue flow channel inside for precisely guiding the flow path of the glue. At least one set of first heating pipes 12 is reasonably arranged inside the heating barrel 8. These heating pipes can quickly generate heat to rapidly increase the temperature inside the heating barrel 8, thereby efficiently melting the solid glue material in the barrel into a liquid state to meet the needs of the glue dispensing process. The working end of the first thermocouple 11 is accurately arranged inside the heating barrel 8. Its main function is to collect temperature data inside the heating barrel 8 in real time and accurately, and transmit these data to the first instrument connected through the cold end. The first instrument intelligently controls the heating power of the first heating pipe 12 according to the received temperature signal, thereby ensuring that the temperature inside the heating barrel 8 is always maintained in a uniform and suitable state, providing a good temperature environment for the stable melting of the glue and subsequent glue dispensing operation.

[0048] The nozzle is mounted at the lower end of the heating barrel 8 and is in seamless communication with the glue flow channel of the heating barrel 8. This design can ensure that the melted glue flows smoothly through the nozzle. A heat preservation head 4 is specially arranged at the glue outlet end of the nozzle. Its key function is to effectively maintain the uniformity of the glue outlet temperature of the needle, avoid affecting the glue dispensing quality due to temperature fluctuations, and ensure the stability and consistency of the glue dispensing process. The nozzle heating block 3 is firmly fixed at the lower end of the heating barrel 8 and tightly surrounds the side surface of the nozzle. The pipe body of the second heating pipe 5 is cleverly arranged in the nozzle heating block 3 to provide stable heating function for the nozzle heating block 3, thereby ensuring that the temperature of the nozzle part is always maintained within a suitable range. The working end of the second thermocouple 6 is accurately arranged in the nozzle heating block 3, responsible for collecting temperature data inside the nozzle heating block 3 in real time, and transmitting these data to the second instrument connected through the cold end. The second instrument accurately adjusts the heating power of the second heating pipe 5 according to the received temperature signal, thereby ensuring the uniformity and stability of the temperature inside the nozzle heating block 3, providing a strong guarantee for high-quality glue dispensing.

[0049] The rubber tube 9 made of alloy material is accurately arranged at one end of the inside of the heating barrel 8, and the cavity of the rubber tube 9 is accurately communicated with the glue flow channel of the heating barrel 8, so that the molten glue in the heating barrel 8 can smoothly flow into the rubber tube 9. The other end of the rubber tube 9 extends out of the upper end of the heating barrel 8 by a proper distance, so as to be conveniently connected with other components. The air joint 10 is fixedly arranged at the end of the extending end of the rubber tube 9 and is in smooth communication with the inner cavity of the rubber tube 9. The main function of the air joint 10 is to be used for inputting gas, and the pressure generated by the gas can provide stable and controllable power for the extrusion of the glue, so that the glue can be extruded from the nozzle according to the set flow and speed, and the requirements of different glue dispensing processes can be met. Meanwhile, the extending part of the rubber tube 9 is clamped and fixed by the positioning block, and one end of the positioning block is also connected and fixed with the mounting plate 1. This design further enhances the stability of the installation of the rubber tube 9, avoids shaking or displacement during the operation of the device, and affects the glue dispensing precision.

[0050] The installation process of the high-temperature hot melting glue dispensing device is as follows:

[0051] First, the mounting plate 1 is accurately erected and fixed according to the design requirements, providing a stable foundation for the installation of subsequent components. Next, the metal heating barrel 8 surrounded by the thermal insulation layer 2 is firmly installed on the mounting plate 1 by suitable fixing methods such as bolt connection or welding, etc. During installation, the integrity and sealing of the thermal insulation layer 2 must be ensured to fully play its role in heat insulation. Then, the needle nozzle is carefully installed at the lower end of the heating barrel 8, and through precise connection technology, the needle nozzle is ensured to accurately communicate with the glue flow channel of the heating barrel 8, avoiding glue leakage or blockage. The one end of the alloy glue cylinder 9 is accurately placed inside the heating barrel 8, so that its cylinder cavity is seamlessly connected with the glue flow channel of the heating barrel 8. The other end of the glue cylinder 9 extends out of the upper end of the heating barrel 8 by a suitable distance, and then the extending part of the glue cylinder 9 is firmly clamped and fixed by the positioning block, and the one end of the positioning block is reliably connected and fixed with the mounting plate 1, ensuring the stability of the installation of the glue cylinder 9. Subsequently, the air connector 10 is firmly fixed at the end of the extending end of the glue cylinder 9, ensuring smooth communication between the air connector 10 and the inner cavity of the glue cylinder 9. At least one set of first heating pipes 12 is installed inside the heating barrel 8 according to the design requirements, ensuring the accurate position of the heating pipes and the uniform heating of the glue material in the heating barrel 8. The working end of the first thermocouple 11 is accurately placed inside the heating barrel 8, and its cold end is connected to the first instrument to realize real-time monitoring and feedback of the temperature in the heating barrel 8. The needle nozzle heating block 3 is fixed at the lower end of the heating barrel 8, tightly surrounding the side surface of the needle nozzle, and the second heating pipe 5 is installed in the needle nozzle heating block 3. The working end of the second thermocouple 6 is placed in the needle nozzle heating block 3, and its cold end is connected to the second instrument to realize accurate control of the temperature of the needle nozzle part. Finally, the heat preservation head 4 is installed at the glue outlet end of the needle nozzle, and the anti-scald protective cover 7 is connected with the mounting plate 1, ensuring that the anti-scald protective cover 7 can completely cover the heating barrel 8, the glue cylinder 9 and the needle nozzle heating block 3, providing safety protection for the operator.

[0052] The working process of the high-temperature hot melt point glue device of the utility model is as follows:

[0053] When the device starts to work, the first heating pipe 12 rapidly heats the heating barrel 8, so that the solid glue material in the heating barrel 8 is rapidly melted. The first thermocouple 11 collects the temperature data in the heating barrel 8 in real time, and rapidly feeds back the data to the first instrument. According to the received temperature signal, the first instrument intelligently controls the heating power of the first heating pipe 12, maintains the temperature uniformity in the heating barrel 8, and ensures that the glue is always in a good melting state. At the same time, the second heating pipe 5 heats the needle nozzle heating block 3, the second thermocouple 6 collects the temperature data in the needle nozzle heating block 3 in real time, and feeds back the data to the second instrument. According to the received temperature signal, the second instrument accurately controls the heating power of the second heating pipe 5, ensures the temperature stability of the needle nozzle part, and maintains the needle head glue temperature uniformity in the appropriate working temperature range (such as 280℃±3℃). When the glue dispensing operation is needed, the gas is introduced into the glue cylinder 9 through the gas joint 10, and under the action of the gas pressure, the melted glue is extruded from the needle nozzle, realizing high-quality micro-scale glue dispensing 3D printing. Through this cooperative working mode, the high aspect ratio requirement of the narrow frame middle frame glue dispensing in the production process of the full-size screen module of the LED / LCD / LED can be met, the stability and consistency of the glue dispensing process can be ensured, and the product quality and production efficiency can be improved.

[0054] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is based on the content of the present application and the drawings, is also included in the patent protection range of the present application.

Claims

1. A high temperature hot melt point glue device, characterized in that, The utility model relates to a glue heating device, which comprises: a mounting plate (1); a heating barrel (8) fixed to the mounting plate (1) and provided with a heat preservation layer (2) around the barrel, the barrel having a glue flow channel inside; a needle nozzle installed at the lower end of the heating barrel (8), the needle nozzle being in communication with the glue flow channel, the needle nozzle being provided with a heat preservation head (4) at the glue outlet end of the needle nozzle; a glue cylinder (9) having one end of the cylinder body arranged inside the heating barrel (8) and the other end of the cylinder body extending out of the upper end of the heating barrel (8) by a distance, the cylinder cavity of the glue cylinder (9) being in communication with the glue flow channel of the heating barrel (8); an air connector (10) fixed to the end of the extending end of the glue cylinder (9) and in communication with the inner cavity of the glue cylinder (9); a first heating pipe (12) provided with at least one set of the first heating pipe (12) being arranged inside the heating barrel (8); a first thermocouple (11) having the working end of the first thermocouple (11) arranged inside the heating barrel (8) and the cold end of the first thermocouple (11) connected to a first instrument; a needle nozzle heating block (3) fixed to the lower end of the heating barrel (8) and surrounding the side peripheral surface of the needle nozzle; a second heating pipe (5) having the pipe body of the second heating pipe (5) arranged inside the needle nozzle heating block (3); a second thermocouple (6) having the working end of the second thermocouple (6) arranged inside the needle nozzle heating block (3) and the cold end of the second thermocouple (6) connected to a second instrument.

2. The high temperature hot melt point glue device according to claim 1, wherein, The utility model further comprises a scalding protection cover (7) connected to the mounting plate (1) to cover the heating barrel (8), the glue cylinder (9) and the needle nozzle heating block (3).

3. The high temperature hot melt point glue device of claim 1, wherein, The extending part of the glue cylinder (9) is clamped and fixed by a positioning block, one end of the positioning block being further connected and fixed to the mounting plate (1).

4. The high temperature hot melt point glue device of claim 1, wherein, The heating barrel (8) is a metal heating barrel.

5. The high temperature hot melt point glue device of claim 1, wherein, The glue cylinder (9) is an alloy glue cylinder.

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