3D glue gun

Abstract

This application relates to a 3D glue gun, comprising a base, a glue gun body, a solenoid valve assembly, and a feeding assembly. The base has a third annular channel, a second annular channel, a first annular channel, a fourth annular channel, and a fifth annular channel arranged sequentially from one side to the other. The base also contains a first channel, a second channel, a third channel, a fourth channel, a fifth channel, and a sixth channel. The glue gun body is rotatably mounted within the base and includes a barrel, a nozzle, a first dispensing valve, a second dispensing valve, and a third dispensing valve. The nozzle is located at the end of the barrel, and the first, second, and third dispensing valves are located inside the barrel. The solenoid valve assembly and the feeding assembly are detachably mounted on the base. The circulation valve is detachably mounted outside the base for quick replacement of the feeding seat, allowing for the simultaneous input of two types of glue. The solenoid valve is detachably mounted on a valve plate for quick disassembly and maintenance.

Description

Technical Field

[0001] This application relates to the field of automotive coating technology, and in particular to a 3D glue gun. Background Technology

[0002] In the automotive manufacturing and heavy industry sectors, 3D glue guns specifically refer to automated glue application equipment installed at the end of a robotic arm, primarily used for underbody UBC / UBS coating and cabin ISS / LASD coating.

[0003] In the existing technology, 3D glue guns have the following problems: the external control module and air tube result in large size and low integration; the external air tube increases the length of the air path and affects the valve opening and closing response speed; even if there are some 3D glue guns that integrate circulation valves and solenoid valves, the circulation valves and solenoid valves are not easy to disassemble and maintain, and the channels are complex and the response time is long. When it is necessary to replace the circulation valve with a feed seat, the disassembly and assembly of the circulation valve is complicated and the operation is difficult.

[0004] Therefore, we propose a 3D glue gun. Summary of the Invention

[0005] To address the shortcomings of existing production technologies, the applicant provides a 3D glue gun. This gun simplifies the flow path, reduces dead zones, and minimizes glue buildup by redesigning the channels of the circulation valve and solenoid valve. The circulation valve is detachably mounted on the outside of the base for easy and quick replacement of the feed seat, allowing for the simultaneous input of two types of glue. The solenoid valve is detachably mounted on the valve plate for easy and quick disassembly and maintenance.

[0006] The technical solution adopted in this application is as follows: A 3D glue gun, comprising: The base is hollow, and inside the base, from one side to the other, there are a third annular channel, a second annular channel, a first annular channel, a fourth annular channel, and a fifth annular channel. The base also has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, and a sixth channel. One end of the first channel is connected to the first annular channel, one end of the second channel is connected to the second annular channel, one end of the third channel is connected to the third annular channel, one end of the fourth channel is connected to the fourth annular channel, and one end of the fifth channel is connected to the fifth annular channel. The glue gun body is rotatably mounted inside the base. The glue gun body includes a barrel, a nozzle, a first glue dispensing valve, a second glue dispensing valve, and a third glue dispensing valve. The nozzle is located at the end of the barrel, and the first, second, and third glue dispensing valves are located inside the barrel. The solenoid valve assembly is detachably mounted on the base and is used to control the first dispensing valve, the second dispensing valve, and the third dispensing valve. The feeding assembly is detachably mounted on the base; The nozzle has three outlets at different angles: a first outlet, a second outlet, and a third outlet. Inside the nozzle are three channels: a thirteenth, a fourteenth, and a fifteenth. One end of the thirteenth channel connects to the first outlet, one end of the fourteenth channel connects to the second outlet, and one end of the fifteenth channel connects to the third outlet. Outside the barrel, from one side to the other, are four annular channels: an eighth, a seventh, a sixth, a ninth, and a tenth. The third and eighth annular channels connect, as do the second and seventh, the first and sixth, the fourth and ninth, and the fifth and tenth. Inside the barrel are three channels: a tenth, an eleventh, and a twelfth. The tenth and ninth, eleventh and tenth annular channels connect, as do the eleventh and twelfth, and the twelfth channel connects to the thirteenth, fourteenth, and fifteenth channels respectively.

[0007] Its further features are: The feeding assembly is a circulation valve. One side of the circulation valve is provided with a feed inlet and a discharge outlet. The other side of the circulation valve is provided with a seventh channel, an eighth channel, and a ninth channel. One end of the seventh channel is connected to the feed inlet, one end of the eighth channel is connected to the discharge outlet, the other end of the seventh channel is connected to the fifth channel, the other end of the eighth channel is connected to the fourth channel, and the ninth channel is connected to the sixth channel.

[0008] The feeding assembly is a feeding seat with two feeding ports. One feeding port is connected to the fourth channel, and the other feeding port is connected to the fifth channel.

[0009] The base is equipped with sealing components on both sides of the third, second, first, fourth, and fifth annular channels. Bearings are installed at both ends of the base, and the glue gun body is rotatably connected to the base through the bearings.

[0010] The angle of the first glue outlet is 45°, the angle of the second glue outlet is 0°, and the angle of the third glue outlet is 90°.

[0011] The first dispensing valve includes a first driving assembly, a first ejector pin, and a first sealing seat. The first sealing seat is disposed in the thirteenth channel. The first driving assembly is used to drive the first ejector pin to move, thereby controlling whether the first ejector pin and the first sealing seat are sealed.

[0012] The second dispensing valve includes a second drive assembly, a second ejector pin, and a second sealing seat. The second sealing seat is disposed in the fourteenth channel. The second drive assembly is used to drive the second ejector pin to move, thereby controlling whether the second ejector pin and the second sealing seat are sealed.

[0013] The third dispensing valve includes a third driving assembly, a third ejector pin, and a third sealing seat. The third sealing seat is disposed in the fifteenth channel. The third driving assembly is used to drive the third ejector pin to move, thereby controlling whether the third ejector pin and the third sealing seat are sealed.

[0014] The solenoid valve assembly includes a valve plate, which is provided with an air inlet, a first air outlet, a second air outlet, a third air outlet, and a fourth air outlet. The air inlet is connected to the first air outlet, the second air outlet, the third air outlet, and the fourth air outlet, respectively. The first air outlet is connected to a first channel, the second air outlet is connected to a second channel, the third air outlet is connected to a third channel, and the fourth air outlet is connected to a sixth channel.

[0015] The solenoid valve assembly also includes four solenoid valves detachably mounted on the valve plate, which are used to control the first dispensing valve, the second dispensing valve, the third dispensing valve, and the circulation valve, respectively.

[0016] The beneficial effects of this application are as follows: This application features a compact and rational structure, and is easy to operate. By redesigning the channels of the circulation valve and solenoid valve, the channels are simplified, dead angles are reduced, and glue accumulation is minimized. The circulation valve is detachably mounted on the outside of the base, facilitating quick replacement of the feed seat and allowing for the simultaneous input of two types of glue, which is convenient and fast. The solenoid valve is detachably mounted on the valve plate, facilitating quick disassembly and maintenance.

[0017] In addition, this application also has the following advantages: (1) The glue gun nozzle is equipped with three different glue outlets: a first glue outlet, a second glue outlet, and a third glue outlet, which can meet the requirements of different glue application angles. The glue gun body is rotatably connected to the base through a bearing, which can realize 360° rotation glue application.

[0018] (2) When using the circulation valve, the glue can circulate, preventing it from becoming viscous due to prolonged stagnation. When using the feed seat, it can support the simultaneous input of two different types of glue. The circulation valve and feed seat are easy to disassemble and replace quickly to meet different usage needs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the 3D glue gun of this application before the feeding assembly is installed.

[0020] Figure 2 This is a schematic diagram of the solenoid valve assembly of this application.

[0021] Figure 3 This is a schematic diagram of the base for this application.

[0022] Figure 4 for Figure 3 Schematic diagram of the AA section.

[0023] Figure 5 for Figure 3 Schematic diagram of the cross-section of BB.

[0024] Figure 6 for Figure 3 Schematic diagram of the CC section.

[0025] Figure 7 for Figure 3 Schematic diagram of the DD cross section.

[0026] Figure 8 for Figure 3 Side view.

[0027] Figure 9 for Figure 8 Schematic diagram of the EE cross section.

[0028] Figure 10 for Figure 8 Schematic diagram of the FF cross section.

[0029] Figure 11 This is a schematic diagram of the glue gun body of this application.

[0030] Figure 12 for Figure 11 Schematic diagram of the cross-section of GG.

[0031] Figure 13 for Figure 11 Schematic diagram of the HH cross section.

[0032] Figure 14 for Figure 11 Side view.

[0033] Figure 15 for Figure 14 Schematic diagram of section II.

[0034] Figure 16 This is a schematic diagram of the 3D glue gun of this application after the circulation valve is installed.

[0035] Figure 17 This is a schematic diagram of the solenoid valve of this application.

[0036] Figure 18 This is a schematic diagram of the nozzle in this application. Figure 1 .

[0037] Figure 19 This is a schematic diagram of the nozzle in this application. Figure 3 .

[0038] The components are: 100, base; 200, solenoid valve assembly; 300, circulation valve; 400, glue gun body; 101. First channel; 102. First annular channel; 103. Second channel; 104. Second annular channel; 105. Third channel; 106. Third annular channel; 107. Fourth channel; 108. Fourth annular channel; 109. Fifth channel; 110. Fifth annular channel; 111. Sixth channel; 112. Bearing; 201. Valve plate; 202. Air inlet; 203. First air outlet; 204. Second air outlet; 205. Third air outlet; 206. Fourth air outlet; 301. Feed inlet; 302. Discharge outlet; 303. Seventh channel; 304. Eighth channel; 305. Ninth channel; 401. Gun barrel; 402. Nozzle; 403. First dispensing valve; 404. Second dispensing valve; 405. Third dispensing valve; 4011, Sixth Ring Channel; 4012, Seventh Ring Channel; 4013, Eighth Ring Channel; 4014, Ninth Ring Channel; 4015, Tenth Ring Channel; 4016, Tenth Channel; 4017, Eleventh Channel; 4018, Twelfth Channel; 4021, First Glue Outlet; 4022, Second Glue Outlet; 4023, Third Glue Outlet; 4024, Thirteenth Channel; 4025, Fourteenth Channel; 4026, Fifteenth Channel; 4031, First drive assembly; 4032, First ejector pin; 4033, First sealing seat; 4041, Second drive assembly; 4042, Second ejector pin; 4043, Second sealing seat; 4051, Third drive assembly; 4052, Third ejector pin; 4053, Third sealing seat. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0040] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] Furthermore, where the terms "first" and "third" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, descriptions such as "above" or "below" the third feature can mean that the first and third features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the third feature can mean that the first feature is directly above or diagonally above the third feature, or simply that the first feature is at a higher horizontal level than the third feature. Similarly, "below," "below," and "under" the third feature can mean that the first feature is directly below or diagonally below the third feature, or simply that the first feature is at a lower horizontal level than the third feature.

[0044] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0045] like Figures 1-19 As shown, a 3D glue gun includes a base 100, a glue gun body 400, a solenoid valve assembly 200, and a feeding assembly.

[0046] The base 100 is hollow. Inside the base 100, from one side to the other, there are arranged a third annular channel 106, a second annular channel 104, a first annular channel 102, a fourth annular channel 108, and a fifth annular channel 110. The base 100 also has a first channel 101, a second channel 103, a third channel 105, a fourth channel 107, a fifth channel 109, and a sixth channel 111. One end of the first channel 101 is connected to the first annular channel 102, one end of the second channel 103 is connected to the second annular channel 104, one end of the third channel 105 is connected to the third annular channel 106, one end of the fourth channel 107 is connected to the fourth annular channel 108, and one end of the fifth channel 109 is connected to the fifth annular channel 110. The glue gun body 400 is rotatably mounted inside the base 100. The glue gun body 400 includes a gun barrel 401, a glue nozzle 402, a first glue dispensing valve 403, a second glue dispensing valve 404, and a third glue dispensing valve 405. The glue nozzle 402 is located at the end of the gun barrel 401, and the first glue dispensing valve 403, the second glue dispensing valve 404, and the third glue dispensing valve 405 are located inside the gun barrel 401. The solenoid valve assembly 200 is detachably mounted on the base 100 and is used to control the first dispensing valve 403, the second dispensing valve 404 and the third dispensing valve 405. The feeding assembly is detachably mounted on the base 100; The nozzle 402 is provided with a first glue outlet 4021, a second glue outlet 4022, and a third glue outlet 4023 at different angles. Inside the nozzle 402, there are also a thirteenth channel 4024, a fourteenth channel 4025, and a fifteenth channel 4026. One end of the thirteenth channel 4024 is connected to the first glue outlet 4021, one end of the fourteenth channel 4025 is connected to the second glue outlet 4022, and one end of the fifteenth channel 4026 is connected to the third glue outlet 4023. Outside the barrel 401, from one side to the other, there are sequentially arranged an eighth annular channel 4013, a seventh annular channel 4012, a sixth annular channel 4011, a ninth annular channel 4014, and a tenth annular channel 4015. The third annular channel 4016 is connected to the eighth annular channel 4013, and the second annular channel 4026 is connected to the eighth annular channel 4015. 104 is connected to the seventh annular channel 4012, the first annular channel 102 is connected to the sixth annular channel 4011, the fourth annular channel 108 is connected to the ninth annular channel 4014, the fifth annular channel 110 is connected to the tenth annular channel 4015, and the barrel 401 is also provided with the tenth channel 4016, the eleventh channel 4017 and the twelfth channel 4018. The tenth channel 4016 is connected to the ninth annular channel 4014, the eleventh channel 4017 is connected to the tenth annular channel 4015, the tenth channel 4016 is connected to the twelfth channel 4018, the eleventh channel 4017 is connected to the twelfth channel 4018, and the twelfth channel 4018 is connected to the thirteenth channel 4024, the fourteenth channel 4025 and the fifteenth channel 4026 respectively.

[0047] In one embodiment, the feeding assembly is a circulation valve 300. The circulation valve 300 has an inlet 301 and an outlet 302 on one side, and a seventh channel 303, an eighth channel 304 and a ninth channel 305 on the other side. One end of the seventh channel 303 is connected to the inlet 301, one end of the eighth channel 304 is connected to the outlet 302, the other end of the seventh channel 303 is connected to the fifth channel 109, the other end of the eighth channel 304 is connected to the fourth channel 107, and the ninth channel 305 is connected to the sixth channel 111.

[0048] The adhesive enters through inlet 301, then flows into the seventh channel 303, then into the fifth channel 109, then into the fifth annular channel 110, then into the tenth annular channel 4015, then into the eleventh channel 4017, and finally into the twelfth channel 4018. When the solenoid valve controls the first drive assembly 4031 to move the first ejector pin 4032 away from the first sealing seat 4033, the adhesive flows from the twelfth channel 4018 into the thirteenth channel 4024, and then out through the first outlet 4021. When the solenoid valve controls the second drive assembly 4041 to move the second ejector pin 4042 away from the second sealing seat 4043, the adhesive flows from the twelfth channel 4018 into the fourteenth channel 4025, and then out through the second outlet 4022. When the solenoid valve controls the third drive assembly 4051 to move the third ejector pin 4052 away from the third sealing seat 4053, the adhesive enters the fifteenth channel 4026 from the twelfth channel 4018, and then flows out from the third dispensing port 4023. When dispensing is not required, the adhesive enters the tenth channel 4016 from the twelfth channel 4018, then the ninth annular channel 4014 from the tenth channel 4016, then the fourth annular channel 108 from the ninth annular channel 4014, then the fourth channel 107 from the fourth annular channel 108, then the eighth channel 304 from the fourth channel 107, and finally flows out from the dispensing port 302. This circulation of the adhesive prevents it from becoming viscous due to prolonged stagnation.

[0049] In one embodiment, the feeding component is a feeding seat with two feeding ports. One feeding port is connected to the fourth channel 107, and the other feeding port is connected to the fifth channel 109.

[0050] Two types of adhesive are added from the two feeding ports: adhesive one and adhesive two. Adhesive one enters the fourth channel 107, and adhesive two enters the fifth channel 109.

[0051] Adhesive 1 enters the fourth annular channel 108 from the fourth channel 107, then enters the ninth annular channel 4014 from the fourth annular channel 108, then enters the tenth channel 4016 from the ninth annular channel 4014, and finally enters the twelfth channel 4018 from the tenth channel 4016. Adhesive 2 enters the fifth annular channel 110 from the fifth channel 109, then enters the tenth annular channel 4015 from the fifth annular channel 110, then enters the eleventh channel 4017 from the tenth annular channel 4015, and finally enters the twelfth channel 4018 from the eleventh channel 4017. Adhesive 1 and Adhesive 2 are mixed in the twelfth channel 4018, and the mixed adhesive flows out from the first outlet 4021, the second outlet 4022, or the third outlet 4023. The feeding seat can be easily and quickly accessed by disassembling the circulation valve 300.

[0052] Sealing components are provided on both sides of the third annular channel 106, the second annular channel 104, the first annular channel 102, the fourth annular channel 108 and the fifth annular channel 110 inside the base 100. Bearings 112 are provided at both ends inside the base 100. The glue gun body 400 is rotatably connected to the base 100 through the bearings 112.

[0053] The angle of the first glue outlet 4021 is 45°, the angle of the second glue outlet 4022 is 0°, and the angle of the third glue outlet 4023 is 90°.

[0054] The first dispensing valve 403 includes a first driving assembly 4031, a first ejector pin 4032, and a first sealing seat 4033. The first sealing seat 4033 is disposed in the thirteenth channel 4024. The first driving assembly 4031 is used to drive the first ejector pin 4032 to move, thereby controlling whether the first ejector pin 4032 and the first sealing seat 4033 are sealed.

[0055] The second dispensing valve 404 includes a second driving assembly 4041, a second ejector pin 4042, and a second sealing seat 4043. The second sealing seat 4043 is disposed in the fourteenth channel 4025. The second driving assembly 4041 is used to drive the second ejector pin 4042 to move, thereby controlling whether the second ejector pin 4042 and the second sealing seat 4043 are sealed.

[0056] The third dispensing valve 405 includes a third driving assembly 4051, a third ejector pin 4052, and a third sealing seat 4053. The third sealing seat 4053 is disposed in the fifteenth channel 4026. The third driving assembly 4051 is used to drive the third ejector pin 4052 to move, thereby controlling whether the third ejector pin 4052 and the third sealing seat 4053 are sealed.

[0057] The solenoid valve assembly 200 includes a valve plate 201, which is provided with an air inlet 202, a first air outlet 203, a second air outlet 204, a third air outlet 205, and a fourth air outlet 206. The air inlet 202 is connected to the first air outlet 203, the second air outlet 204, the third air outlet 205, and the fourth air outlet 206, respectively. The first air outlet 203 is connected to the first channel 101, the second air outlet 204 is connected to the second channel 103, the third air outlet 205 is connected to the third channel 105, and the fourth air outlet 206 is connected to the sixth channel 111.

[0058] The solenoid valve assembly 200 also includes four solenoid valves detachably mounted on the valve plate 201, which are used to control the first dispensing valve 403, the second dispensing valve 404, the third dispensing valve 405, and the circulation valve 300, respectively.

[0059] Compressed air enters from the inlet 202 and is distributed to the first outlet 203, the second outlet 204, the third outlet 205 and the fourth outlet 206 via the valve plate 201. When the solenoid valve controls the compressed air to be output from the first outlet 203, the compressed air enters the first channel 101 from the first outlet 203, enters the first annular channel 102 from the first channel 101, and enters the sixth annular channel 4011 from the first annular channel 102. The compressed gas is delivered from the sixth annular channel 4011 to the first drive assembly 4031 to drive the first drive assembly 4031, which in turn drives the first ejector pin 4032 to move.

[0060] When the solenoid valve controls the compressed air to be output from the second outlet 204, the compressed air enters the second channel 103 from the second outlet 204, enters the second annular channel 104 from the second channel 103, enters the seventh annular channel 4012 from the second annular channel 104, and is delivered from the seventh annular channel 4012 to the third drive assembly 4051 to drive the third drive assembly 4051, which in turn drives the third ejector pin 4052 to move.

[0061] When the solenoid valve controls the compressed air to be output from the third outlet 205, the compressed air enters the third channel 105 from the third outlet 205, enters the third annular channel 106 from the third channel 105, enters the eighth annular channel 4013 from the third annular channel 106, and is delivered from the eighth annular channel 4013 to the second drive assembly 4041 to drive the second drive assembly 4041, which in turn drives the second ejector pin 4042 to move via the third drive assembly 4051.

[0062] When the solenoid valve controls the compressed air to be output from the fourth outlet 206, the compressed air enters the sixth channel 111 from the fourth outlet 206, enters the ninth channel 305 from the sixth channel 111, and enters the drive assembly of the circulation valve 300 from the ninth channel 305.

[0063] The above description is an explanation of this application and not a limitation thereof. The scope of this application is defined by the claims. Within the scope of protection of this application, any form of modification may be made.

Claims

1. A 3D glue gun characterized in that, include: The base (100) is hollow. The base (100) has a third annular channel (106), a second annular channel (104), a first annular channel (102), a fourth annular channel (108) and a fifth annular channel (110) arranged sequentially from one side to the other. The base (100) also has a first channel (101), a second channel (103), a third channel (105), a fourth channel (107), a fifth channel (109) and a sixth channel (111). One end of the first channel (101) is connected to the first annular channel (102), one end of the second channel (103) is connected to the second annular channel (104), one end of the third channel (105) is connected to the third annular channel (106), one end of the fourth channel (107) is connected to the fourth annular channel (108), and one end of the fifth channel (109) is connected to the fifth annular channel (110). The glue gun body (400) is rotatably disposed within the base (100). The glue gun body (400) includes a barrel (401), a nozzle (402), a first dispensing valve (403), a second dispensing valve (404), and a third dispensing valve (405). The nozzle (402) is disposed at the end of the barrel (401), and the first dispensing valve (403), the second dispensing valve (404), and the third dispensing valve (405) are disposed within the barrel (401). The solenoid valve assembly (200) is detachably mounted on the base (100) and is used to control the first dispensing valve (403), the second dispensing valve (404) and the third dispensing valve (405). The feeding assembly is detachably mounted on the base (100); The nozzle (402) is provided with a first glue outlet (4021), a second glue outlet (4022), and a third glue outlet (4023) at different angles. The nozzle (402) also contains a thirteenth channel (4024), a fourteenth channel (4025), and a fifteenth channel (4026). One end of the thirteenth channel (4024) is connected to the first glue outlet (4021), one end of the fourteenth channel (4025) is connected to the second glue outlet (4022), and one end of the fifteenth channel (4026) is connected to the third glue outlet (4023). The barrel (401) has, from one side to the other, an eighth annular channel (4013), a seventh annular channel (4012), a sixth annular channel (4011), a ninth annular channel (4014), and a tenth annular channel (4015). The third annular channel (106) is connected to the eighth annular channel (4013), and the second annular channel... (104) is connected to the seventh annular channel (4012), the first annular channel (102) is connected to the sixth annular channel (4011), the fourth annular channel (108) is connected to the ninth annular channel (4014), the fifth annular channel (110) is connected to the tenth annular channel (4015), and the barrel (401) is also provided with the tenth channel (4016), the eleventh channel (4017) and the twelfth channel (4018). The tenth channel (4016) is connected to the ninth annular channel (4014), the eleventh channel (4017) is connected to the tenth annular channel (4015), the tenth channel (4016) is connected to the twelfth channel (4018), the eleventh channel (4017) is connected to the twelfth channel (4018), and the twelfth channel (4018) is connected to the thirteenth channel (4024), the fourteenth channel (4025) and the fifteenth channel (4026) respectively.

2. The 3D glue gun of claim 1, wherein: The feeding assembly is a circulation valve (300). The circulation valve (300) has an inlet (301) and an outlet (302) on one side, and a seventh channel (303), an eighth channel (304) and a ninth channel (305) on the other side. One end of the seventh channel (303) is connected to the inlet (301), one end of the eighth channel (304) is connected to the outlet (302), the other end of the seventh channel (303) is connected to the fifth channel (109), the other end of the eighth channel (304) is connected to the fourth channel (107), and the ninth channel (305) is connected to the sixth channel (111).

3. A 3D glue gun as described in claim 1, characterized in that: The feeding assembly is a feeding seat with two feeding ports. One feeding port is connected to the fourth channel (107), and the other feeding port is connected to the fifth channel (109).

4. A 3D glue gun as described in claim 1, characterized in that: Sealing components are provided on both sides of the third annular channel (106), the second annular channel (104), the first annular channel (102), the fourth annular channel (108) and the fifth annular channel (110) inside the base (100). Bearings (112) are provided at both ends inside the base (100). The glue gun body (400) is rotatably connected to the base (100) through the bearings (112).

5. A 3D glue gun as described in claim 1, characterized in that: The angle of the first glue outlet (4021) is 45°, the angle of the second glue outlet (4022) is 0°, and the angle of the third glue outlet (4023) is 90°.

6. A 3D glue gun as described in claim 1, characterized in that: The first dispensing valve (403) includes a first driving assembly (4031), a first ejector pin (4032), and a first sealing seat (4033). The first sealing seat (4033) is disposed in the thirteenth channel (4024). The first driving assembly (4031) is used to drive the first ejector pin (4032) to move, thereby controlling whether the first ejector pin (4032) and the first sealing seat (4033) are sealed.

7. A 3D glue gun as described in claim 1, characterized in that: The second dispensing valve (404) includes a second drive assembly (4041), a second ejector pin (4042), and a second sealing seat (4043). The second sealing seat (4043) is disposed in the fourteenth channel (4025). The second drive assembly (4041) is used to drive the second ejector pin (4042) to move, thereby controlling whether the second ejector pin (4042) and the second sealing seat (4043) are sealed.

8. A 3D glue gun as described in claim 1, characterized in that: The third dispensing valve (405) includes a third driving assembly (4051), a third ejector pin (4052), and a third sealing seat (4053). The third sealing seat (4053) is disposed in the fifteenth channel (4026). The third driving assembly (4051) is used to drive the third ejector pin (4052) to move, thereby controlling whether the third ejector pin (4052) and the third sealing seat (4053) are sealed.

9. A 3D glue gun as described in claim 2, characterized in that: The solenoid valve assembly (200) includes a valve plate (201), which is provided with an air inlet (202), a first air outlet (203), a second air outlet (204), a third air outlet (205) and a fourth air outlet (206). The air inlet (202) is connected to the first air outlet (203), the second air outlet (204), the third air outlet (205) and the fourth air outlet (206) respectively. The first air outlet (203) is connected to the first channel (101), the second air outlet (204) is connected to the second channel (103), the third air outlet (205) is connected to the third channel (105), and the fourth air outlet (206) is connected to the sixth channel (111).

10. A 3D glue gun as described in claim 9, characterized in that: The solenoid valve assembly (200) also includes four solenoid valves detachably mounted on the valve plate (201), which are used to control the first dispensing valve (403), the second dispensing valve (404), the third dispensing valve (405), and the circulation valve (300), respectively.

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