Replaceable hot melt adhesive nozzle

Abstract

The utility model discloses a replaceable hot melt adhesive nozzle which comprises an installation block, a butt joint block is fixedly connected to the front face of the installation block, a circulation channel is formed in the butt joint block, a nozzle body is movably installed at the bottom of the butt joint block, and a cleaning assembly is arranged below the installation block. The bottom of the cleaning assembly is movably connected with a moving assembly, the cleaning assembly comprises a connecting column, the outer wall of the connecting column is sleeved with a rubber sleeve, and the outer wall of the rubber sleeve is provided with cleaning bristles. According to the cleaning device, the cleaning assembly is arranged, the moving assembly moves forwards in the sliding groove in the bottom of the mounting block, then the using position of the connecting plate is lifted through the telescopic rod on the moving assembly, and therefore the cleaning assembly is inserted into the nozzle, and a micro rotating motor drives a rotating disc to drive the cleaning assembly to rotate; hot melt adhesive residues in the nozzle and the circulation channel are scraped through the cleaning bristles and the scraping plate.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzles, in particular to a replaceable hot melt adhesive nozzle. Background Art

[0002] Hot melt adhesive is a plastic adhesive. Its physical state changes with temperature within a certain temperature range, while its chemical properties remain unchanged. It is non-toxic and odorless and is an environmentally friendly chemical product. It is highly favored due to its simple production process, high added value, high bonding strength and fast speed. Hot melt adhesive becomes liquid after heating and is sprayed out through a hot melt adhesive nozzle.

[0003] The existing technology has the following problems:

[0004] In the prior art, after the nozzle has been used for a period of time, some solid hot melt adhesive will remain on the inner wall of the nozzle and the inner wall of the flow channel for conveying the hot melt adhesive after cooling. If it is not cleaned in time, it is easy to cause the nozzle to be clogged. When cleaning the nozzle, the staff needs to disassemble it for cleaning, which takes a long time and increases people's labor. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a replaceable hot melt adhesive nozzle to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A replaceable hot melt adhesive nozzle comprises a mounting block, the front side of the mounting block is fixedly connected to a docking block, a circulation channel is provided inside the docking block, a nozzle is movably mounted on the bottom of the docking block, a cleaning assembly is arranged below the mounting block, a movable assembly is movably connected to the bottom of the cleaning assembly, the cleaning assembly comprises a connecting column, a rubber sleeve is sleeved on the outer wall of the connecting column, cleaning bristles are arranged on the outer wall of the rubber sleeve, the cleaning bristles account for approximately eighty percent of the outer wall of the rubber sleeve, and a scraper is fixedly connected to the other side of the rubber sleeve.

[0008] Preferably, a slide groove is provided at the bottom of the mounting block, and a sliding block is slidably installed inside the slide groove. The sliding groove enables the sliding block to move horizontally at the bottom of the mounting block.

[0009] Preferably, the movable component includes a connecting block, a mounting groove is provided on the front side of the connecting block, a telescopic rod is fixedly connected to the inner top wall of the mounting groove, a connecting plate is fixedly connected to the bottom of the telescopic rod, and the connecting plate can be moved up and down by the telescopic rod, so that the cleaning component can be extended into the interior of the nozzle.

[0010] Preferably, the top of the connecting block is fixedly connected with a docking block, and the bottom of the sliding block is provided with a limiting slot. The inner walls of the docking block and the limiting slot are provided with pin holes, and the interior of the pin hole is plugged with a positioning pin shaft. The docking block can be inserted into the limiting slot, and then the connecting block and the sliding block can be docked by inserting the positioning pin shaft into the pin hole, which makes disassembly and assembly convenient.

[0011] Preferably, a micro-rotating motor is fixedly installed at the bottom of the connecting plate, a rotating shaft is arranged at the top of the micro-rotating motor, a rotating disk is arranged at the top of the rotating shaft, the top of the rotating disk is connected to the bottom of the connecting column, and the rotating disk can be driven to rotate by the micro-rotating motor, thereby driving the cleaning component to operate.

[0012] Preferably, the outer wall of the bottom end of the connecting column is provided with an external thread, and the top of the rotating disk is provided with a threaded hole. Through the provided threaded hole, the connecting column can be movably docked with the rotating disk. The threaded docking method is relatively stable and can ensure stability during the rotating cleaning process.

[0013] Preferably, a accommodating cavity is provided on the side wall of the docking block, and a plurality of groups of electric heating tubes are filled and installed inside the accommodating cavity. Through the arranged electric heating tubes, the inside of the flow channel can be preheated when the temperature is low, so as to avoid condensation and blockage in the channel when the hot melt adhesive is transported due to the low internal temperature.

[0014] Preferably, a thermally conductive insulation layer is fixedly connected to the surface of the accommodating cavity, and the thermally conductive insulation layer is a thermally conductive sheet made of copper. Through the provided thermally conductive insulation layer, the heat generated by the electric heating tube can be quickly transported to the interior of the docking block, utilizing the excellent thermal conductivity of copper to achieve rapid heat transfer.

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

[0016] 1. The replaceable hot melt adhesive nozzle is provided with a cleaning component. The moving component moves forward at the bottom of the mounting block, and then the telescopic rod on the moving component lifts the use position of the connecting plate, so that the cleaning component is inserted into the interior of the nozzle. The rotating disk is driven by a micro-rotating motor to drive the cleaning component to rotate, and the hot melt adhesive residue in the nozzle and the flow channel is scraped off by the cleaning bristles and the scraper.

[0017] 2. The replaceable hot melt adhesive nozzle can preheat the inside of the flow channel through the electric heating tube when the temperature is low, so as to avoid condensation and blockage in the channel when the hot melt adhesive is transported due to the low internal temperature. The heat generated by the electric heating tube can be quickly transported to the inside of the docking block through the copper thermal insulation layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a front structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the bottom structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the mobile component of the utility model;

[0022] Figure 4 This is a schematic diagram of the cleaning component structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the docking block of the utility model;

[0024] Figure 6 It is a schematic diagram of the enlarged structure of the sliding block of the utility model.

[0025] In the figure: 1. Mounting block; 2. Docking block; 3. Nozzle; 4. Electric heating tube; 5. Thermal insulation layer; 6. Slide groove; 7. Sliding block; 8. Moving assembly; 801. Connecting block; 802. Docking block; 803. Telescopic rod; 804. Connecting plate; 9. Cleaning assembly; 901. Connecting column; 902. Rubber sleeve; 903. Cleaning brush bristles; 904. Scraper; 10. Limiting slot. DETAILED DESCRIPTION

[0026] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] According to an embodiment of the utility model, a replaceable hot melt adhesive nozzle is provided.

[0028] Embodiment 1;

[0029] like Figure 1-Figure 6As shown, the replaceable hot melt adhesive nozzle according to the embodiment of the utility model includes a mounting block 1, the front side of the mounting block 1 is fixedly connected to a docking block 2, a circulation channel is opened inside the docking block 2, a nozzle 3 is movably installed at the bottom of the docking block 2, a cleaning component 9 is arranged below the mounting block 1, the bottom of the cleaning component 9 is movably connected to a movable component 8, the cleaning component 9 includes a connecting column 901, the outer wall of the connecting column 901 is sleeved with a rubber sleeve 902, the outer wall of the rubber sleeve 902 is provided with cleaning bristles 903, the cleaning bristles 903 account for about eighty percent of the outer wall of the rubber sleeve 902, and the other side of the rubber sleeve 902 is fixedly connected to a scraper 904.

[0030] In this embodiment, a slide groove 6 is provided at the bottom of the mounting block 1 , and a sliding block 7 is slidably installed inside the slide groove 6 . The slide groove 6 allows the sliding block 7 to move horizontally at the bottom of the mounting block 1 .

[0031] In this embodiment, the movable component 8 includes a connecting block 801, and a mounting groove is opened on the front side of the connecting block 801. A telescopic rod 803 is fixedly connected to the inner top wall of the mounting groove, and a connecting plate 804 is fixedly connected to the bottom of the telescopic rod 803. Through the setting of the telescopic rod 803, the connecting plate 804 can be moved up and down, so that the cleaning component 9 can be extended into the interior of the nozzle 3.

[0032] In this embodiment, the top of the connecting block 801 is fixedly connected with a docking block 802, and the bottom of the sliding block 7 is provided with a limiting slot 10. The inner walls of the docking block 802 and the limiting slot 10 are provided with pin holes, and the interior of the pin hole is plugged with a positioning pin shaft. The docking block 802 can be inserted into the limiting slot 10, and then the connecting block 801 and the sliding block 7 can be docked by inserting the positioning pin shaft into the pin hole, which is convenient for disassembly and assembly.

[0033] In this embodiment, a micro-rotating motor is fixedly installed at the bottom of the connecting plate 804, a rotating shaft is arranged at the top of the micro-rotating motor, a rotating disk is arranged at the top of the rotating shaft, and the top of the rotating disk is connected to the bottom of the connecting column 901. The micro-rotating motor can drive the rotating disk to rotate, thereby driving the cleaning component 9 to operate.

[0034] Embodiment 2:

[0035] Based on the first embodiment, the preferred embodiment of the replaceable hot melt adhesive nozzle provided by the present invention is as follows: Figures 1 to 6 As shown:

[0036] In this embodiment, the outer wall of the bottom end of the connecting column 901 is provided with an external thread, and a threaded hole is opened on the top of the rotating disk. Through the provided threaded hole, the connecting column 901 can be movably docked with the rotating disk. The threaded docking method is relatively stable and can ensure stability during the rotating cleaning process.

[0037] In this embodiment, a accommodating cavity is opened on the side wall of the docking block 2, and a plurality of groups of electric heating tubes 4 are filled and installed inside the accommodating cavity. Through the arranged electric heating tubes 4, the inside of the flow channel can be preheated when the temperature is low, so as to avoid condensation and blockage in the channel when the hot melt adhesive is transported due to the low internal temperature.

[0038] In this embodiment, a heat-conducting insulation layer 5 is fixedly connected to the surface of the accommodating cavity. The heat-conducting insulation layer 5 is a heat-conducting sheet made of copper. Through the set heat-conducting insulation layer 5, the heat generated by the electric heating tube 4 can be quickly transported to the inside of the docking block 2, and the copper material has excellent thermal conductivity to achieve rapid heat transfer.

[0039] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0040] In actual application, after the nozzle 3 is used, the connecting block 801 is pushed to the left, and the connecting block 801 slides inside the slide groove 6 through the sliding block 7 to move, and then the connecting plate 804 is lifted upward through the contraction of the telescopic rod 803, so that the connecting column 901 is extended into the interior of the nozzle 3, and then the micro-rotating motor drives the rotating disk to rotate, thereby driving the cleaning component 9 to rotate, and the cleaning bristles 903 and the scraper 904 on the component are used to scrape off the nozzle 3 and the solid hot melt adhesive residue in the circulation channel. When the temperature is low, the interior of the circulation channel can be preheated through the electric heating tube 4 to avoid condensation and blockage in the channel when the internal temperature is low and the hot melt adhesive is transported. The heat generated by the electric heating tube 4 can be quickly transported to the interior of the docking block 2 through the copper thermal insulation layer 5.

[0041] In summary, with the aid of the above-mentioned technical scheme of the utility model, a cleaning component is set up, the moving component is moved forward at the bottom of the mounting block, and then the use position of the connecting plate is lifted by the telescopic rod on the moving component, so that the cleaning component is inserted into the interior of the nozzle, and the rotating disk is driven by the micro-rotating motor to drive the cleaning component to rotate, and the hot melt adhesive residues in the nozzle and the circulation channel are scraped off by the cleaning bristles and the scraper. When the temperature is low, the interior of the circulation channel can be preheated by the electric heating tube to avoid condensation and blockage in the channel when the hot melt adhesive is transported due to the low internal temperature, and the heat generated by the electric heating tube can be quickly transported to the interior of the mounting block through the copper thermal insulation layer.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A replaceable hot melt adhesive nozzle, comprising a mounting block (1), characterized in that: The front side of the mounting block (1) is fixedly connected to a docking block (2), a circulation channel is provided inside the docking block (2), a nozzle (3) is movably mounted on the bottom of the docking block (2), a cleaning component (9) is arranged below the mounting block (1), a moving component (8) is movably connected to the bottom of the cleaning component (9), the cleaning component (9) comprises a connecting column (901), the outer wall of the connecting column (901) is sleeved with a rubber sleeve (902), the outer wall of the rubber sleeve (902) is provided with cleaning bristles (903), the cleaning bristles (903) account for approximately 80 percent of the outer wall of the rubber sleeve (902), and the other side of the rubber sleeve (902) is fixedly connected to a scraper (904).

2. A replaceable hot melt adhesive nozzle according to claim 1, characterized in that: A sliding groove (6) is provided at the bottom of the installation block (1), and a sliding block (7) is slidably installed inside the sliding groove (6).

3. A replaceable hot melt adhesive nozzle according to claim 2, characterized in that: The moving assembly (8) comprises a connecting block (801), a mounting groove is provided on the front side of the connecting block (801), a telescopic rod (803) is fixedly connected to the inner top wall of the mounting groove, and a connecting plate (804) is fixedly connected to the bottom of the telescopic rod (803).

4. A replaceable hot melt adhesive nozzle according to claim 3, characterized in that: The top of the connecting block (801) is fixedly connected to a docking block (802), the bottom of the sliding block (7) is provided with a limiting slot (10), the inner walls of the docking block (802) and the limiting slot (10) are both provided with pin holes, and a positioning pin shaft is inserted into the pin hole.

5. The replaceable hot melt adhesive nozzle according to claim 3, characterized in that: A micro rotary motor is fixedly mounted at the bottom of the connecting plate (804), a rotating shaft is arranged at the top of the micro rotary motor, a rotating disk is arranged at the top of the rotating shaft, and the top end of the rotating disk is connected to the bottom of the connecting column (901).

6. A replaceable hot melt adhesive nozzle according to claim 5, characterized in that: The outer wall of the bottom end of the connecting column (901) is provided with an external thread, and the top of the rotating disk is provided with a threaded hole.

7. The replaceable hot melt adhesive nozzle according to claim 1, characterized in that: The side wall of the docking block (2) is provided with an accommodating cavity, and a plurality of groups of electric heating tubes (4) are filled and installed inside the accommodating cavity.

8. The replaceable hot melt adhesive nozzle according to claim 7, characterized in that: A heat-conducting insulation layer (5) is fixedly connected to the surface of the accommodating cavity, and the heat-conducting insulation layer (5) is a heat-conducting sheet made of copper.

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