3D automatic glue gun for gluing

Abstract

The utility model belongs to the technical field of spraying equipment, in particular to a 3D (three-dimensional) automatic glue gun for gluing, which is characterized by comprising a base, a bent part supporting component and an end part supporting component are arranged on the base, the bent part supporting component comprises a fixed supporting rod and an adjusting supporting component, one end of the fixed supporting rod is fixed on the base, and the other end of the fixed supporting rod is fixed on the end part supporting component. An adjusting support assembly is arranged at the other end; the end supporting assembly comprises a supporting plate, a drilling sleeve and an end positioning assembly are arranged on the supporting plate, and a through hole allowing a drill bit to pass through is formed in the drilling sleeve. The middle bent part of the steering handle is supported and positioned through the bent part supporting assembly, one end of the steering handle is positioned through the end positioning assembly of the end supporting assembly, and then the steering handle in the drilling sleeve is directly drilled through the through hole of the drilling equipment, so that the operation is very simple, convenient and rapid, the machining efficiency is effectively improved, and the machining cost is reduced. And the machining precision is guaranteed, and the safety coefficient of workers during working is improved.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, and in particular to a 3D automatic glue gun for applying glue. Background Technology

[0002] The glue gun is an important component in the glue application process. Different locations require different types of glue, so glue guns are frequently changed during use to spray different glues to meet the needs of different applications. With the increasing scale of production automation, more and more companies are using robots for automated glue application. Therefore, it is necessary to develop a glue gun that can easily switch between different types of glue to meet the needs of rapid production.

[0003] To address the aforementioned problems, this utility model document proposes a 3D automatic glue gun for applying glue. Utility Model Content

[0004] This invention provides a 3D automatic glue gun for applying adhesives, which facilitates automatic switching between different types of adhesives to meet the needs of automated production.

[0005] This utility model provides the following technical solution:

[0006] A 3D automatic glue gun for applying glue includes a stator assembly and a spindle assembly. The spindle assembly passes through the stator assembly and is rotatably arranged relative to the stator assembly. The bottom end of the spindle assembly is provided with a gun head assembly for applying glue, and the top end is provided with a cylinder valve needle assembly that cooperates with the gun head assembly. The side of the stator assembly is also provided with a fluid contact block assembly that is connected to an external glue delivery line.

[0007] Furthermore, the cylinder valve needle assembly includes a cylinder body with three valve chambers, each containing a piston. The cylinder body also has a cylinder head, and a return spring is provided between the piston and the cylinder head. Each piston is connected to a valve needle assembly, which penetrates the bottom surface of the valve chamber.

[0008] Furthermore, the valve needle assembly includes a valve stem, the top end of which is provided with a connector for connecting to a piston, and the bottom end is provided with a valve needle.

[0009] Furthermore, the spindle assembly includes a spindle assembly, which is a hollow cylindrical structure. Inside, along its length, are three adhesive channels communicating with the nozzle assembly. Near the top, there are also three sealing bushings communicating with the valve chamber. The valve stem is slidably disposed within the adhesive channels. The sidewall of the spindle assembly has three annular adhesive grooves and three annular air grooves. The bottom of each annular air groove has a vent pipe communicating with the inside of the sealing bushing. The bottom of each annular adhesive groove has a dispensing pipe communicating with the inside of the adhesive channels. The bottom end of the spindle assembly has a nozzle connecting block for easy connection to the nozzle assembly, and the bottom surface of the nozzle connecting block has a connecting block sealing gasket.

[0010] Furthermore, the spindle assembly includes a split spindle, with a gun head connecting block at the bottom end of the split spindle and a spindle flange connected to the top flange. The cylinder body is mounted on the top surface of the spindle flange, and the sealing bushing and the glue channel are respectively located at the top and bottom ends of the split spindle.

[0011] Furthermore, the stator assembly includes a stator block with a stator cavity. The stator cavity sidewall has two glue inlet channels and three air inlet channels. The stator block side is provided with a valve block and three sets of solenoid valves. The valve block contains three air delivery channels, and the three sets of solenoid valves are respectively positioned corresponding to the three air delivery channels. The three air inlet channels are respectively connected to three annular air grooves of the main shaft assembly. One end of each of the two glue inlet channels is connected to two of the three annular glue grooves of the main shaft assembly, and the other end is connected to a fluid receiving block assembly. An air-sealing kit is provided in the stator cavity corresponding to the annular air grooves, and a glue-flowing septum is provided corresponding to the annular glue grooves.

[0012] Furthermore, the airtight kit includes an airtight seat sleeve, with first sealing rings at both ends of the airtight seat sleeve, and an annular first clearance groove on the side wall of the airtight seat sleeve, with a first through hole evenly opened on the bottom surface of the first clearance groove; the side wall of the adhesive flow septum has an annular second clearance groove, with a second through hole evenly opened on the bottom surface of the second clearance groove, and a second sealing ring is provided between adjacent adhesive flow septums.

[0013] Furthermore, the fluid connection block assembly includes a fluid intermediate connection block, one side of which abuts against the side of the stator assembly and is fixed by bolts. The fluid intermediate connection block has two glue supply pipes, one end of which is located on the side abutting the stator assembly, and the glue supply pipes are connected to the glue inlet channels on the stator block one by one. The fluid intermediate connection block has a fluid connector, and the fluid connector has two connecting pipes, one end of which is connected to the glue supply pipes one by one. The fluid connector has a double male threaded joint at the position corresponding to the other end of the connecting pipe.

[0014] Furthermore, the fluid intermediate block is also equipped with a pressure sensor and a temperature sensor. The pressure sensor is connected to one glue delivery pipeline, and the temperature sensor is connected to another glue delivery pipeline. The fluid intermediate block is equipped with a control board, which is electrically connected to the pressure sensor and the temperature sensor respectively.

[0015] Furthermore, the gun head assembly includes a gun head, which has three spray tubes connected to the glue flow channel. One end of each spray tube is provided with a nozzle, and the other end is provided with a valve seat that cooperates with the valve needle.

[0016] In this invention, different types of adhesive are fed into the main spindle assembly via a fluid junction assembly. The cylinder valve needle assembly is moved by the stator assembly, thereby controlling the different types of adhesive to be sprayed out from the gun head assembly. The main spindle assembly can rotate within the stator assembly, thereby driving the gun head assembly to rotate, which facilitates the adhesive spraying operation and meets the requirements for automated adhesive application. Attached Figure Description

[0017] Figure 1 An exploded view of the installation of a 3D automatic glue gun for applying glue, provided for an embodiment of this utility model;

[0018] Figure 2 An exploded view of the cylinder valve needle assembly in a 3D automatic glue gun for applying glue, provided for an embodiment of this utility model;

[0019] Figure 3 An exploded view of the spindle assembly in a 3D automatic glue gun for applying glue, provided as an embodiment of this utility model;

[0020] Figure 4 An exploded view of the stator assembly in a 3D automatic glue gun for applying glue, provided as an embodiment of this utility model;

[0021] Figure 5 A cross-sectional view of the stator assembly in a 3D automatic glue gun for applying glue, provided as an embodiment of this utility model;

[0022] Figure 6 An exploded view of the fluid junction assembly in a 3D automatic glue gun for applying glue, provided as an embodiment of this utility model;

[0023] Figure 7 An exploded view of the gun head assembly in a 3D automatic glue gun for applying glue, provided as an embodiment of this utility model;

[0024] Figure 8 A three-dimensional structural schematic diagram of an air-sealing kit for a 3D automatic glue gun for applying glue, provided in an embodiment of this utility model;

[0025] Figure 9A cross-sectional view of the split main shaft in a 3D automatic glue gun for applying glue, provided for an embodiment of this utility model;

[0026] Figure 10 This is a three-dimensional structural diagram of a 3D automatic glue gun for applying glue, provided as an embodiment of the present utility model.

[0027] Figure label:

[0028] 1. Cylinder valve needle assembly; 101. Cylinder body; 102. Valve chamber; 103. Piston; 104. Cylinder head; 105. Valve needle assembly; 1051. Valve stem; 1052. Connector; 1053. Valve needle head; 106. Return spring; 2. Spindle assembly; 201. Spindle assembly; 2011. Split spindle; 2012. Spindle flange; 202. Gun head connecting block; 203. Connecting block sealing gasket; 204. Sealing bushing; 205. Glue flow channel; 3. Stator assembly; 301. Stator block; 3011. Stator chamber; 3012. Inlet port; 3013. Glue inlet port; 302. Valve block; 3021. Air delivery port; 303. 1. Solenoid valve; 304. Airtight kit; 3041. Airtight seat; 3042. First clearance groove; 3043. First sealing ring; 3044. First through hole; 305. Adhesive flow septum; 3051. Second clearance groove; 3052. Second through hole; 3053. Second sealing ring; 4. Fluid connector assembly; 401. Fluid intermediate connector; 402. Fluid connector; 403. Adhesive delivery pipeline; 404. Connecting pipeline; 405. Double male threaded connector; 406. Pressure sensor; 407. Temperature sensor; 408. Control board; 5. Gun head assembly; 501. Gun head; 502. Valve seat; 503. Adhesive spraying pipeline; 504. Nozzle. Detailed Implementation

[0029] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0030] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0031] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0032] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0033] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0034] Example:

[0035] Reference Figure 1As shown, a 3D automatic glue gun for applying glue includes a stator assembly 3 and a spindle assembly 2. The spindle assembly 2 passes through the stator assembly 3 and is rotatably arranged relative to the stator assembly 3. The bottom end of the spindle assembly 2 is provided with a gun head assembly 5 for applying glue, and the top end is provided with a cylinder valve needle assembly 1 that cooperates with the gun head assembly 5. The side of the stator assembly 3 is also provided with a fluid contact block 402 assembly 4 that is connected to an external glue delivery line.

[0036] The fluid connector 402 component 4 controls the delivery of different adhesives into the spindle assembly 2. The stator assembly 3 controls the movement of the cylinder valve needle assembly 1, thereby controlling the different adhesives to be sprayed out from the gun head assembly 5. The spindle assembly 2 can rotate within the stator assembly 3, thereby driving the gun head assembly 5 to rotate, which facilitates the adhesive spraying operation.

[0037] The cylinder valve needle assembly 1 includes a cylinder body 101, which has three valve chambers 102. Each valve chamber 102 is provided with a piston 103. The cylinder body 101 is provided with a cylinder head 104. A return spring 106 is provided between the piston 103 and the cylinder head 104. Each piston 103 is connected to a valve needle assembly 105, which penetrates the bottom surface of the valve chamber 102.

[0038] The piston 103 moves within the valve chamber 102, which can drive the valve needle assembly 105 to move. When the piston 103 receives air pressure and moves upward, it drives the valve needle assembly 105 to move upward, while simultaneously compressing the return spring 106. When the air pressure decreases, the piston 103 receives the elastic force of the return spring 106 and moves downward, thereby driving the valve needle assembly 105 to move downward.

[0039] The valve needle assembly 105 includes a valve stem 1051, with a connector 1052 at the top for connecting to the piston 103 and a valve needle head 1053 at the bottom.

[0040] The connector 1052 is used to connect to the piston 103, while the valve needle 1053 is used to cooperate with the nozzle assembly 5, thereby controlling the nozzle assembly 5 to spray different types of adhesive. The valve stem 1051 serves as a connector, facilitating the movement of the piston 103 to drive the valve needle 1053.

[0041] The spindle assembly 2 includes a spindle assembly 201, which is a hollow cylindrical structure. Inside, along its length, are three glue channels 205 that communicate with the gun head assembly 5. Near the top, there are also three sealing bushings 204 that communicate with the valve chamber 102. The valve stem 1051 is slidably disposed within the glue channels 205. The side wall of the spindle assembly 201 has three annular glue grooves and three annular air grooves. The bottom of the annular air grooves has a vent pipe that communicates with the inside of the sealing bushings 204. The bottom of the annular glue grooves has a glue flow pipe that communicates with the inside of the glue channels 205. The bottom end of the spindle assembly 201 has a gun head 501 connecting block 202 for easy connection with the gun head assembly 5. The bottom surface of the gun head 501 connecting block 202 has a connecting block sealing gasket 203.

[0042] Gas enters through the annular gas groove, is then transported into the sealing bushing 204 through the vent pipe, enters the valve chamber 102 along the sealing bushing 204, and then acts on the piston 103 in the valve chamber 102, pushing the piston 103 to move upward; while glue enters through the annular glue groove, enters the glue flow channel 205 through the glue flow pipe, and is transported from the glue flow channel 205 to the gun head assembly 5.

[0043] The nozzle assembly 5 is mounted on the nozzle 501 connecting block 202, while the connecting block sealing gasket 203 is located between the nozzle 501 connecting block 202 and the nozzle assembly 5. The connecting block sealing gasket 203 allows for adjustment of the interconnection or independence of the adhesive channels 205. If there are two partitions inside the connecting block sealing gasket 203, dividing the interior of the connecting block sealing gasket 203 into three areas corresponding to the three adhesive channels 205 respectively, then the three adhesive channels 205 can independently cooperate with the nozzle assembly 5, enabling the delivery of three different adhesives. If the connecting block sealing gasket 203 contains... A partition is installed inside the connecting block sealing gasket 203, dividing the interior into two areas, corresponding to one glue flow channel 205 and two glue flow channels 205 respectively. One glue flow channel 205 can output one type of glue, and two glue flow channels 205 can output another type of glue. Simultaneously, the glue can flow within the two glue flow channels 205, improving its stability and preventing stagnation from affecting its performance or even causing it to solidify. If no partition is installed inside the connecting block sealing gasket 203, the glue can flow within all three glue flow channels 205, and in this case, the glue gun can only output one type of glue.

[0044] The spindle assembly 201 includes a split spindle 2011. The bottom end of the split spindle 2011 is provided with a gun head 501 connecting block 202, and the top flange is connected to the spindle flange 2012. The cylinder body 101 is installed on the top surface of the spindle flange 2012. The sealing bushing 204 and the glue flow channel 205 are respectively provided at the top and bottom ends of the split spindle 2011.

[0045] The main shaft flange 2012 facilitates connection with the cylinder valve needle assembly 1. The cylinder body 101 is fixed to the main shaft flange 2012 with bolts, thereby fixing the position of the valve chamber 102, and thus fixing the position of the piston 103 and the valve needle assembly 105. This ensures that the valve needle assembly 105 can accurately cooperate with the gun head assembly 5 and prevent glue leakage.

[0046] The stator assembly 3 includes a stator block 301, on which a stator cavity 3011 is formed. The side wall of the stator cavity 3011 has two glue inlet channels 3013 and three air inlet channels 3012. The side of the stator block 301 is provided with a valve block 302 and three sets of solenoid valves 303. The valve block 302 is provided with three air delivery channels 3021. The three sets of solenoid valves 303 are respectively set corresponding to the three air delivery channels 3021. The three air inlet channels 3012 are respectively connected to the three annular air grooves of the spindle assembly 201. One end of each of the two glue inlet channels 3013 is connected to two of the three annular glue grooves of the spindle assembly 201, and the other end is connected to the fluid receiving block 402 assembly 4. The stator cavity 3011 is provided with an air sealing kit 304 at the position corresponding to the annular air groove, and a glue flow septum 305 at the position corresponding to the annular glue groove.

[0047] After the gas is input from the gas supply channel 3021 of the gas valve block 302, it reaches the interior of the stator block 301. It enters the air pipe through the annular air groove on the side wall of the main shaft assembly 201, and then enters the sealing bushing 204 through the air pipe. It then reaches the valve chamber 102 along the sealing bushing 204 and acts on the piston 103. The opening and closing of the three gas supply channels 3021 in the gas valve block 302 are controlled by three sets of solenoid valves 303, thereby controlling the movement of the piston 103. This controls the cooperation between the valve needle 1053 and the gun head assembly 5, achieving the effect of controlling the glue output.

[0048] The glue inlet channel 3013 is connected to the fluid receiving block 402 assembly 4. Glue flows from the fluid receiving block 402 assembly 4 into the glue inlet channel 3013, then flows from the glue inlet channel 3013 into the stator block 301, enters the glue flow tube from the annular glue groove on the side wall of the main shaft assembly 201, and then enters the glue flow channel 205 from the glue flow tube, thus reaching the position of the gun head assembly 5.

[0049] The sealing between the three annular glue grooves and three annular air grooves on the side wall of the main shaft assembly 201 is improved by using airtight kits and hexagonal spacers to prevent them from communicating with each other and causing glue leakage. If the sealing between the annular air grooves is poor, after air is introduced, gas will flow into two or three bushings at the same time and reach the valve chamber 102, which will simultaneously control two or three valve needles 1053 to open, causing glue to be dispensed at one or three points on the gun head assembly 52. ​​If the sealing between the annular glue grooves is poor, one type of glue will enter multiple glue channels 205 at the same time, causing glue mixing, directly affecting the quality of the glue, and ultimately affecting the quality of the product.

[0050] The airtight kit 304 includes an airtight seat 3041, with first sealing rings 3043 at both ends of the airtight seat 3041, and an annular first clearance groove 3042 on the side wall of the airtight seat 3041. The bottom surface of the first clearance groove 3042 is uniformly provided with first through holes 3044. The side wall of the adhesive flow septum 305 is provided with an annular second clearance groove 3051, and the bottom surface of the second clearance groove 3051 is uniformly provided with second through holes 3052. A second sealing ring 3053 is provided between adjacent adhesive flow septums 305.

[0051] The airtight seat 3041 provides structural support for the first through hole 3044, ensuring the stability of the structure of the first through hole 3044 and preventing the main shaft assembly 201 from affecting the structure of the first through hole 3044 when rotating, causing changes in the structure of the first through hole 3044, which in turn affects the flow rate and velocity of the gas, thereby affecting the reaction time and stroke of the piston 103, ultimately affecting the dispensing reaction time, and may even affect the fit between the valve needle and the gun head assembly 5.

[0052] The glue flow septum 305 provides structural support for the second through hole 3052, ensuring the structural stability of the second through hole 3052 and preventing the main shaft assembly 201 from affecting the structure of the second through hole 3052 when rotating, causing the second through hole 3052 to deform, thereby affecting the flow of glue, affecting the glue output and glue output speed, and ultimately affecting product quality.

[0053] The sealing performance between the stator block 301 and the annular air groove and annular rubber groove on the side wall of the main shaft assembly 201 is further improved by the first sealing ring 3043 and the second sealing ring 3053.

[0054] The fluid connector 402 assembly 4 includes a fluid intermediate connector 401. One side of the fluid intermediate connector 401 abuts against the side of the stator assembly 3 and is fixed by bolts. The fluid intermediate connector 401 is provided with two glue supply pipes 403. One end of the glue supply pipe 403 is located on the side abutting against the stator assembly 3, and the glue supply pipe 403 is connected to the glue inlet channel 3013 on the stator block 301. The fluid intermediate connector 401 is provided with a fluid connector 402. The fluid connector 402 is provided with two connecting pipes 404. One end of the connecting pipe 404 is connected to the glue supply pipe 403. The fluid connector 402 is provided with a double external thread connector 405 at the position corresponding to the other end of the connecting pipe 404.

[0055] The fluid connector 402 assembly 4 is connected to the stator assembly 3 via the fluid intermediate connector 401, and the glue delivery pipeline 403 in the fluid intermediate connector 401 is connected to the glue inlet channel 3013 of the stator assembly 3. In actual use, a sealing ring is provided at the connection between the glue delivery pipeline 403 and the glue inlet channel 3013 to improve the sealing performance of the connection and prevent glue leakage. The fluid connector 402 is installed on the fluid intermediate connector 401, and the double external threaded connector 405 on the fluid connector 402 facilitates connection with the external glue delivery line. In actual use, a sealing ring is provided at the connection between the glue delivery pipeline 403 in the fluid intermediate connector 401 and the connecting pipeline 404 in the fluid connector 402 to improve the sealing performance of the connection and prevent glue leakage.

[0056] The fluid intermediate connection block 401 is also equipped with a pressure sensor 406 and a temperature sensor 407. The pressure sensor 406 is connected to one glue delivery pipeline 403, and the temperature sensor 407 is connected to another glue delivery pipeline 403. The fluid intermediate connection block 401 is equipped with a control board 408, which is electrically connected to the pressure sensor 406 and the temperature sensor 407 respectively. The pressure sensor 406 monitors the pressure of the glue in the glue delivery pipeline 403 in real time to ensure normal glue flow, and the temperature sensor 407 monitors the temperature of the glue in real time to ensure stable glue performance.

[0057] The control board 408 can be connected to external intelligent control devices to monitor and respond to the data fed back by the pressure sensor 406 and the temperature sensor 407.

[0058] The gun head assembly 5 includes a gun head 501, which has three glue spraying pipes 503 that are connected to the glue flow channel 205. One end of the glue spraying pipe 503 is provided with a nozzle 504, and the other end is provided with a valve seat 502 that cooperates with the valve needle head 1053.

[0059] The valve needle 1053, in conjunction with the valve seat 502, controls the connection and disconnection between the adhesive spraying line 503 and the adhesive flow channel 205, thereby controlling the entry of adhesive into the adhesive spraying line 503. When the valve needle 1053 separates from the valve seat 502, the adhesive flows from the adhesive flow channel 205 into the adhesive spraying line 503 and is then sprayed out from the nozzle 504 for adhesive application. When the valve needle 1053 comes into contact with the valve seat 502, it closes the connection between the adhesive flow channel 205 and the adhesive spraying line 503, preventing adhesive from entering the adhesive spraying line 503 and stopping the adhesive application process.

[0060] In use, the double-threaded connector 405 is connected to the external glue delivery line, and the air valve block 302 is connected to the external air supply line. Glue enters the connecting pipe 404 of the fluid receiving block 402 from the double-threaded connector 405, passes through the glue delivery pipe 403 of the fluid receiving block 401, and then reaches the glue inlet channel 3013 inside the stator block 301. From the glue inlet channel 3013, it comes into contact with the stator cavity 3011 inside the stator block 301 and the main shaft assembly 201. From the annular side wall of the main shaft assembly 201... The glue tank enters the glue flow tube, and then enters the glue flow channel 205 from the glue flow tube; while the controlled gas enters the air inlet 3012 in the stator block 301 from the air outlet 3021 in the air valve block 302, and then enters the stator cavity 3011 from the air inlet 3012 to contact the main shaft assembly 201. It enters the vent pipe from the annular air groove on the side wall of the main shaft assembly 201, and is then transported to the sealing bushing 204 from the vent pipe. It then enters the valve cavity 102 along the sealing bushing 204, so that the air pressure acts on the piston 103.

[0061] During adhesive application, the solenoid valve 303 opens the corresponding air supply channel 3021, allowing gas to reach the corresponding valve chamber 102. The air pressure causes the piston 103 to move upwards, simultaneously compressing the return spring 106. This upward movement of the piston 103 drives the valve stem 1051 upwards, which in turn moves the valve needle 1053 upwards. This causes the valve needle 1053 to separate from the valve seat 502 of the nozzle assembly 5, allowing the adhesive in the corresponding adhesive flow channel 205 to enter the adhesive spraying line 503 of the nozzle assembly 5, where it is then sprayed out from the nozzle 504 for adhesive application. If a different type of adhesive needs to be used, the electronic valve is closed, stopping the gas supply to the air supply channel 3021, thus stopping the gas from entering the corresponding valve chamber 102. Inside, the piston 103 is no longer subjected to air pressure and returns to its initial position under the action of the return spring 106. This causes the valve stem 1051 to return to its initial position, thereby causing the valve needle 1053 to abut against the valve seat 502. The adhesive cannot enter the glue spraying pipeline 503 from the adhesive flow channel 205, and the nozzle 504 stops outputting adhesive, thus stopping the glue application. Then, the main shaft assembly 2 is rotated to rotate the nozzle 504 corresponding to the adhesive to be used to the working position, and then the corresponding solenoid valve 303 is opened. This causes air pressure to act on the corresponding piston 103, causing the corresponding valve needle 1053 to separate from the valve seat 502. The corresponding adhesive can then enter the glue spraying pipeline 503 from the adhesive flow channel 205 and be sprayed out from the nozzle 504 for glue application.

[0062] In practical use, by selecting different connecting block sealing gaskets 203, it is possible to switch between multiple adhesives or allow the same adhesive to circulate within the adhesive flow channel 205.

[0063] In actual use, a sealing gasket is installed on the main spindle assembly 201 at the bottom of the stator block 301. The sealing gasket improves the sealing performance of the connection between the stator block 301 and the main spindle assembly 201. The sealing gasket is fixed by a locking ring assembly, which consists of two semi-circular locking ring blocks spliced ​​together and bolted to the main spindle assembly 201. The top surface of the locking ring block has a groove that matches the sealing gasket. After the two locking ring blocks are spliced ​​together, the two grooves can position the sealing gasket.

[0064] The connector 1052 has a positioning groove on its side, and the piston 103 has a connecting block on its upper surface. The connector 1052 passes through the piston 103 and is inserted into the connecting block. The connecting block has threaded holes on both sides, and positioning bolts are installed in the threaded holes. The ends of the positioning bolts extend into the positioning grooves on the side wall of the connector 1052, so that the connector 1052 and the piston 103 can be connected.

[0065] This connection method ensures that even if the connector 1052 rotates, it will not affect the stability of the connection structure between the connector 1052 and the piston 103, thus ensuring that the piston 103 can drive the valve stem 1051 to move.

[0066] In actual assembly, seals are installed at the joints of each component to improve the overall sealing of the glue gun and prevent glue leakage.

[0067] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A 3D automatic glue gun for applying glue, characterized in that, It includes a stator assembly and a spindle assembly. The spindle assembly passes through the stator assembly and is rotatably arranged relative to the stator assembly. The bottom end of the spindle assembly is provided with a gun head assembly for applying glue, and the top end is provided with a cylinder valve needle assembly that cooperates with the gun head assembly. The side of the stator assembly is also provided with a fluid contact block assembly that is connected to an external glue delivery line.

2. The 3D automatic glue gun for applying glue according to claim 1, characterized in that, The cylinder valve needle assembly includes a cylinder body with three valve chambers, each containing a piston. A cylinder head is mounted on the cylinder body, and a return spring is located between the piston and the cylinder head. A valve needle assembly is connected to each piston, and the valve needle assembly penetrates the bottom surface of the valve chamber.

3. The 3D automatic glue gun for applying glue according to claim 2, characterized in that, The valve needle assembly includes a valve stem, the top end of which is provided with a connector for connecting to a piston, and the bottom end is provided with a valve needle.

4. The 3D automatic glue gun for applying glue according to claim 3, characterized in that, The spindle assembly includes a spindle assembly, which is a hollow cylindrical structure. Inside, along its length, are three adhesive channels communicating with the nozzle assembly. Near the top, there are also three sealing bushings communicating with the valve chamber. The valve stem is slidably disposed within the adhesive channels. The sidewall of the spindle assembly has three annular adhesive grooves and three annular air grooves. The bottom of each annular air groove has a vent pipe communicating with the inside of the sealing bushing, and the bottom of each annular adhesive groove has a dispensing pipe communicating with the inside of the adhesive channels. The bottom end of the spindle assembly has a nozzle connecting block for easy connection to the nozzle assembly, and the bottom surface of the nozzle connecting block has a connecting block sealing gasket.

5. A 3D automatic glue gun for applying glue according to claim 4, characterized in that, The spindle assembly includes a split spindle, with a gun head connecting block at the bottom and a spindle flange connected to the top flange. The cylinder body is mounted on the top surface of the spindle flange, and the sealing bushing and glue channel are respectively located at the top and bottom of the split spindle.

6. A 3D automatic glue gun for applying glue according to claim 5, characterized in that, The stator assembly includes a stator block with a stator cavity. The stator cavity has two glue inlet channels and three air inlet channels on its sidewall. The stator block has a valve block and three sets of solenoid valves on its side. The valve block has three air delivery channels, and the three sets of solenoid valves are respectively positioned corresponding to the three air delivery channels. The three air inlet channels are connected to three annular air grooves of the main shaft assembly. One end of each of the two glue inlet channels is connected to two of the three annular glue grooves of the main shaft assembly, and the other end is connected to a fluid receiving block assembly. An air-sealing kit is provided in the stator cavity at the position corresponding to the annular air groove, and a glue-flowing septum is provided at the position corresponding to the annular glue groove.

7. A 3D automatic glue gun for applying glue according to claim 6, characterized in that, The airtight kit includes an airtight seat sleeve, with first sealing rings at both ends of the airtight seat sleeve, and an annular first clearance groove on the side wall of the airtight seat sleeve, with a first through hole evenly opened on the bottom surface of the first clearance groove; the side wall of the adhesive flow septum has an annular second clearance groove, with a second through hole evenly opened on the bottom surface of the second clearance groove, and a second sealing ring is provided between adjacent adhesive flow septums.

8. A 3D automatic glue gun for applying glue according to claim 7, characterized in that, The fluid connector assembly includes a fluid intermediate connector. One side of the fluid intermediate connector abuts against the side of the stator assembly and is fixed by bolts. The fluid intermediate connector has two glue supply lines inside. One end of each glue supply line is located on the side abutting against the stator assembly, and the glue supply line is connected to the glue inlet channel on the stator block. The fluid intermediate connector has a fluid connector block inside, and two connecting lines are provided inside. One end of each connecting line is connected to the glue supply line. The fluid connector block has a double male threaded connector at the position corresponding to the other end of the connecting line.

9. A 3D automatic glue gun for applying glue according to claim 8, characterized in that, The fluid intermediate block is also equipped with a pressure sensor and a temperature sensor. The pressure sensor is connected to one glue delivery pipeline, and the temperature sensor is connected to another glue delivery pipeline. The fluid intermediate block is equipped with a control board, which is electrically connected to the pressure sensor and the temperature sensor respectively.

10. A 3D automatic glue gun for applying glue according to claim 9, characterized in that, The gun head assembly includes a gun head, which has three spray tubes connected to the glue flow channel. One end of each spray tube is provided with a nozzle, and the other end is provided with a valve seat that cooperates with the valve needle.

Images