Quick-release structure for hot end of spray head

Abstract

The utility model discloses a nozzle hot end quick release structure, which comprises a fixed component and a movable component, the fixed component is matched with the movable component, the movable component comprises a heating block, a throat pipe and a nozzle, the fixed component comprises a heating block fastener, the heating block fastener comprises a hinge part, a fixed plate and a fastener body, the hinge part is hinged with the fixed component, and the fixed plate is fixed on the fixed component. The fixed plate surrounds the heating block, the fastener body is clamped with the fixed assembly, and the movable assembly is disassembled and assembled by fastening / loosening the heating block through the heating block fastener. Due to the fact that the fixed assembly is matched with the movable assembly, the movable assembly can be installed on and detached from the fixed assembly by fastening / loosening the heating block fastener, tools are not needed, and operation is easy and convenient. The heating block is surrounded by the fixing plate, so that the heating block does not need to be fixed by an additional element.

Description

Technical Field

[0001] The utility model belongs to the technical field of 3D printing, and in particular relates to a quick-disassembly structure of a hot end of a nozzle. Background Art

[0002] The FDM (fused deposition modeling) 3D printer heats the print head at high temperature to melt the printing material and deposit it onto the printing platform. When the melted printing material contacts the printing platform, it cools and quickly solidifies. The print head deposits the printing material layer by layer onto the printing platform along a set printing path, thereby constructing a model with a three-dimensional structure.

[0003] The current FDM printing technology is becoming more and more mature, the market is becoming more and more extensive, and the requirements for the convenience of using the machine are becoming higher and higher. At present, most FDM printers on the market need to use a wrench to disassemble the print head connected to the hot end. When the head is blocked during the use of the machine, it is not so convenient for users to repair it. Therefore, it is particularly necessary to develop a quick-release hot end assembly. Utility Model Content

[0004] The utility model aims to provide a quick-disassembly structure of the hot end of a nozzle, so as to realize tool-free disassembly of the hot end assembly. In the process of replacing the hot end, there is no need to use tools such as screwdrivers, and the operation is simple and convenient.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The hot end quick-release structure of the nozzle includes a fixed component and a movable component. The fixed component matches the movable component. The movable component includes a heating block, a throat and a nozzle. The fixed component includes a heating block fastener. The heating block fastener includes a hinged portion, a fixed plate and a fastener body. The hinged portion is hinged to the fixed component. The fixed plate surrounds the heating block. The fastener body is clamped with the fixed component. The movable component realizes disassembly and assembly by fastening / loosening the heating block through the heating block fastener.

[0007] Since the fixed component and the movable component match, the movable component can be installed and removed from the fixed component by fastening / loosening the heating block fastener, without the use of tools, and the operation is simple and convenient. The heating block is surrounded by a fixed plate, and no additional components are required to fix the heating block.

[0008] The filament enters the throat and is extruded through the nozzle. The throat is used to transition the filament, the heating block heats the filament, and the nozzle is used to extrude the filament.

[0009] Furthermore, the fixing assembly includes a heating block fixing seat, one side of which is hinged with a heating block fastener, and the heating block fixing seat is provided with a mounting groove, which matches the heating block.

[0010] During installation, first place the heating block in the movable assembly into the installation slot, then fasten the heating block fastener, and the installation slot will have a certain limiting effect.

[0011] Furthermore, the heating block fixing seat is provided with a fixing rod, the hinged part is hinged to one fixing rod, the fastener body includes a vertical part, a raised part and a horizontal part connected in sequence, the raised part protrudes from the vertical part toward the heating block fixing seat, and the raised part is clamped with another fixing rod.

[0012] The heating block fastener fixes the movable component on the fixed component through the clamping connection between the protrusion and the fixed rod.

[0013] Furthermore, the fixed component includes a first circuit adapter, the movable component includes a second circuit adapter, and the first circuit adapter matches the second circuit adapter.

[0014] The first circuit adapter and the second circuit adapter are used to connect the circuit of the movable component and the fixed component.

[0015] Furthermore, the fixing assembly includes a hot end fixing main seat, and the first circuit adapter is fixed to the hot end fixing main seat.

[0016] The hot end fixing seat is used to fix the positions of the first circuit adapter seat and the heating block fixing seat.

[0017] Furthermore, the movable component includes a heat sink, the throat portion is located in the heat sink, and the heat sink is fixedly connected to the second circuit adapter.

[0018] The heat sink can dissipate heat for the wire in the throat and can also be used to install a second circuit adapter.

[0019] Furthermore, a mounting gap is provided between the first circuit adapter and the heating block fixing seat, and a mounting plate is provided on the second circuit adapter, and the mounting plate matches the mounting gap.

[0020] Align the mounting plate with the mounting gap, initially fix the movable component on the fixed component, and then fasten it with the heating block fastener.

[0021] Furthermore, the movable component also includes a temperature sensor and a ceramic heating plate. The ceramic heating plate is located on the periphery of the heating block. The temperature sensor is used to detect the temperature of the heating block.

[0022] The temperature sensor detects the temperature of the heating block, and the ceramic heating plate heats the wire material.

[0023] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0024] During installation, first align the mounting plate on the movable component with the mounting gap on the fixed component, and initially fix the movable component on the fixed component. At the same time, place the heating block in the movable component in the mounting groove, which has a certain limiting effect, and then fasten the heating block fastener. Since the fixed component and the movable component match, the movable component can be installed and removed from the fixed component by fastening / loosening the heating block fastener, without the use of tools, and the operation is simple and convenient. The heating block is surrounded by the fixed plate, and no additional components are required to fix the heating block. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model will be further described below with reference to the accompanying drawings.

[0026] Figure 1 It is a structural diagram of the quick-disassembly structure of the hot end of the nozzle.

[0027] Figure 2 A schematic diagram of the structure of the active component.

[0028] Figure 3 for Figure 2 Schematic diagram of the structure in another direction.

[0029] Figure 4 This is a schematic diagram of the structure when the fixed component is opened.

[0030] Figure 5 for Figure 4 Enlarged schematic diagram at point A in the middle. DETAILED DESCRIPTION

[0031] like Figure 1 The hot end quick-release structure of the nozzle shown includes a fixed component and a movable component, and the fixed component matches the movable component.

[0032] like Figure 1 and Figure 4 As shown, the fixing assembly includes a hot end fixing seat 1, a heating block fixing seat 2 and a first circuit adapter seat 3, and a mounting gap 4 is provided between the first circuit adapter seat 3 and the heating block fixing seat 2.

[0033] like Figure 2 and Figure 3 As shown, the movable assembly includes a heating block 5, a heat sink block 6, a second circuit adapter 7, a throat 8, a nozzle 9, a temperature sensor 10 and a ceramic heating plate 11. The throat 8 is partially located in the heat sink 6. The ceramic heating plate 11 heats the heating block 5. After the wire enters from the throat 8, it is heated and melted by the heating block 5 and finally extruded from the nozzle 9. The heat sink 6 provided above the heating block 5 dissipates the heat of the wire in the throat 8.

[0034] like Figure 4 and Figure 5As shown, a heating block fastener 13 is hinged on one side of the heating block fixing seat 2, and the heating block fixing seat 2 is provided with a mounting groove 16, and the mounting groove 16 matches the heating block 5. Fixed rods 12 are provided on both sides of the heating block fixing seat 2, and the heating block fastener 13 includes a hinged portion 131, a fixing plate 132 and a fastener body 133, and the hinged portion 131 is hinged with the fixing rod 12 on one side. The fastener body 133 includes a vertical portion 1331, a protruding portion 1332 and a horizontal portion 1333 connected in sequence, and the protruding portion 1332 is clamped with the fixing rod 12 on the other side, and the protruding portion 1332 protrudes from the vertical portion 1331 toward the direction close to the heating block fixing seat 2, and the fixing plate 132 surrounds the heating block 5.

[0035] A mounting gap 4 is provided between the first circuit adapter 3 and the heating block fixing base 2, and a mounting plate 14 is provided on the second circuit adapter 7, and the mounting plate 14 matches the mounting gap 4. The first circuit adapter 3 and the second circuit adapter 7 are used to connect the circuit of the movable component and the fixed component.

[0036] During installation, align the mounting plate 14 on the second circuit adapter 7 with the mounting gap 4 provided between the first circuit adapter 3 and the heating block fixing seat 2, and align the heating block 5 with the mounting groove 16, and install the movable component to the fixing component. Then rotate the heating block fastener 13 until the protrusion 1332 engages with the fixing rod 12 on one side of the heating block fixing seat 2, so as to realize the rapid installation of the movable component. The disassembly process is the opposite of the installation process.

[0037] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. The quick-release structure of the hot end of the nozzle is characterized by: It includes a fixed component and a movable component, the fixed component matches the movable component, the movable component includes a heating block, a throat and a nozzle, the fixed component includes a heating block fastener, the heating block fastener includes a hinged portion, a fixing plate and a fastener body, the hinged portion is hinged to the fixed component, the fixing plate surrounds the heating block, the fastener body is clamped with the fixed component, and the movable component realizes disassembly and assembly by fastening / loosening the heating block through the heating block fastener.

2. According to claim 1, the quick-release structure of the nozzle hot end is characterized by: The fixing assembly comprises a heating block fixing seat, one side of which is hinged with the heating block fastener, and the heating block fixing seat is provided with a mounting groove, which matches the heating block.

3. According to claim 2, the quick-release structure of the nozzle hot end is characterized in that: The heating block fixing seat is provided with a fixing rod, the hinged part is hinged to a fixing rod, the fastener body includes a vertical part, a raised part and a horizontal part connected in sequence, the raised part protrudes from the vertical part toward the heating block fixing seat, and the raised part is clamped with another fixing rod.

4. According to claim 2, the quick-release structure of the hot end of the nozzle is characterized in that: The fixed component includes a first circuit adapter, and the movable component includes a second circuit adapter. The first circuit adapter matches the second circuit adapter.

5. According to claim 4, the quick-release structure of the nozzle hot end is characterized in that: The fixing assembly comprises a hot end fixing main seat, and the first circuit adapter is fixed to the hot end fixing main seat.

6. The quick-release structure of the hot end of the nozzle according to claim 4, characterized in that: The movable component comprises a heat sink, the throat portion is located in the heat sink, and the heat sink is fixedly connected to the second circuit adapter.

7. The quick-release structure of the hot end of the nozzle according to claim 4, characterized in that: The first circuit adapter and the heating block fixing seat are directly provided with a mounting gap, and the second circuit adapter is provided with a mounting plate, and the mounting plate matches the mounting gap.

8. The quick-release structure of the hot end of the nozzle according to claim 1, characterized in that: The movable component further comprises a temperature sensor and a ceramic heating plate, wherein the ceramic heating plate is located at the periphery of the heating block, and the temperature sensor is used to detect the temperature of the heating block.

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