Gluing gun and gluing equipment

Abstract

The utility model relates to the technical field of automobile gluing, and discloses a gluing gun and gluing equipment, which comprise a rotating unit and a connecting pipe capable of rotating relative to the rotating unit, the connecting pipe is internally provided with a plurality of gluing channels, each gluing channel comprises a fluid channel, a first air inlet, a first air outlet and a first glue inlet, the first air inlets, the first air outlets and the first glue inlets are formed in the side wall of the connecting pipe and communicate with the fluid channel, and the first air inlets are formed in the axial direction of the connecting pipe in a staggered mode; the rotating unit comprises a first shell, a gas ring, a leakage ring and a feeding ring, the gas ring is provided with a second gas inlet, the leakage ring is provided with a second gas outlet, the feeding ring is provided with a second rubber material inlet, and the gas ring, the leakage ring and the feeding ring are communicated with the first gas inlet, the first gas outlet and the first rubber material inlet respectively to form channels. Independent transmission of air inlet, air outlet and feeding is achieved through the air ring, the leakage ring and the feeding ring, mutual interference is avoided, the working pressure is stable, and the gluing precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive adhesive application technology, and in particular to an adhesive application gun and adhesive application equipment. Background Technology

[0002] With the rapid development of the economy and the improvement of people's living standards, cars have gradually entered families and become a means of transportation. The automotive industry is also constantly developing. Body manufacturing is not just a step in the automotive production line; it is related to the performance, safety, economy, environmental protection, and market performance of the car. It is a direct reflection of the technological research and development and market competitiveness of automotive manufacturing enterprises.

[0003] Body welding is an important process in body manufacturing. In order to improve the sealing and corrosion resistance of the body and reduce vibration, sealant needs to be applied to the joints of the body sheet metal.

[0004] Existing glue guns can affect the flow of glue during the air intake and exhaust processes, which can lead to unstable pressure during glue application. Utility Model Content

[0005] The purpose of this invention is to provide a glue gun and glue application equipment with stable pressure during glue application.

[0006] To achieve the above objectives, this utility model provides a glue applicator, including a rotating unit and a connecting tube that can rotate relative to the rotating unit;

[0007] The connecting pipe is provided with multiple adhesive application channels, each including a fluid channel, a first air inlet, a first exhaust outlet, and a first adhesive inlet. The fluid channel is arranged along the axial direction of the connecting pipe, and the first air inlet, first exhaust outlet, and first adhesive inlet are located on the side wall of the connecting pipe and are respectively connected to the fluid channel. The multiple first air inlets are staggered along the axial direction of the connecting pipe.

[0008] The rotating unit includes a first housing, an air ring, a leakage ring, and a feed ring, wherein the air ring, the leakage ring, and the feed ring are sequentially and sealingly fitted onto the connecting pipe;

[0009] The gas ring is provided with a plurality of second air inlets corresponding to the positions of the first air inlets in the axial direction of the connecting pipe, and the plurality of second air inlets are staggered with the first air inlets in the circumferential direction of the connecting pipe; the leakage ring is provided with a second air outlet corresponding to the position of the first air outlet in the axial direction of the connecting pipe; the feeding ring is provided with a second rubber material inlet corresponding to the position of the first rubber material inlet in the axial direction of the connecting pipe; during rotation of the connecting pipe, when one of the first air inlets is in communication with the second air inlet, the other first air inlets are disconnected from the second air inlets, and the first air outlet is in communication with the second air outlet, and the first rubber material inlet is in communication with the second rubber material inlet.

[0010] The first housing is provided with a third air inlet, a third air outlet, and a third rubber material inlet in communication with the second air inlet, the second air outlet, and the second rubber material inlet, respectively.

[0011] Further, a control valve unit and a rubber material application unit are further provided at both ends of the connecting pipe, respectively; the rubber material application unit includes a rubber material outlet; the control valve unit includes a valve needle, which is arranged in the fluid passage and can be inserted into the rubber material outlet.

[0012] Further, the control valve unit further includes a first cover body, a first spring, a first piston, and a first cylinder body; the first cylinder body is arranged at the end of the connecting pipe; the first cylinder body is provided with a fourth air inlet at the contact position with the connecting pipe; the first spring and the first piston are arranged between the first cover body and the first cylinder body, and the first spring is arranged on one side of the first piston; the other side of the first piston is connected with the valve needle.

[0013] Further, the control valve unit further includes a sealing assembly, which includes a first sealing sleeve and first packing seals arranged at both ends of the first sealing sleeve; the first sealing sleeve is sleeved on the valve needle, and the first packing seals can block the first rubber material inlet.

[0014] Further, a rubber material supply unit and a solenoid valve unit are further provided at both sides of the rotating unit, respectively; the third air inlet and the third air outlet are arranged at the contact position with the solenoid valve unit and are in communication with the solenoid valve unit; the rubber material supply unit is used for providing rubber material and flowing to the third rubber material inlet of the rotating unit.

[0015] Further, the glue applying unit comprises a glue nozzle mounting member, a nozzle, a nozzle glue pad and a glue nozzle shell; the glue outlet is arranged on the nozzle, the nozzle mounting hole is arranged on the glue nozzle mounting member, the nozzle is mounted on the nozzle mounting hole of the glue nozzle mounting member, the nozzle glue pad is arranged between the nozzle and the glue nozzle mounting member, the glue nozzle shell is sleeved on the glue nozzle mounting member and the nozzle protrudes from the glue nozzle shell; the glue nozzle mounting member is fixedly arranged on one end of the connecting pipe by screws.

[0016] Further, three fluid channels are arranged in the connecting pipe, three valve needles are arranged in the control valve unit, and three glue applying openings are arranged in the glue applying unit.

[0017] Further, the glue applying device further comprises a locking unit, which is sleeved on the connecting pipe and arranged on the side of the rotating unit away from the glue supplying unit; the locking unit comprises a first locking ring, a second locking ring, a stop ring and a screw, the second locking ring is connected and arranged in the first locking ring and connected with the stop ring, the second locking ring is in contact with the connecting pipe, the stop ring is in abutment with the rotating unit, the first locking ring and the second locking ring are provided with through holes, and the screw is inserted into the through holes to lock the second locking ring on the connecting pipe.

[0018] In another aspect, the utility model also provides a glue applying device, the glue applying device comprises a robot and the glue gun of any one of the above, the connecting pipe of the glue gun is connected with the sixth shaft of the robot, the rotating unit of the glue gun is fixedly connected with the fifth shaft of the robot, and the fifth shaft of the robot is connected with the sixth shaft of the robot.

[0019] Compared with the prior art, this utility model provides a glue gun and glue application equipment in which multiple glue application channels are provided in the connecting pipe. Each glue application channel includes a fluid channel, a first air inlet, a first exhaust port, and a first adhesive inlet. The fluid channel is connected to the first air inlet, the first exhaust port, and the first adhesive inlet. The multiple first air inlets are staggered along the axial direction of the connecting pipe. The rotating unit is equipped with an air ring, a leakage ring, and a feed ring, all of which are fitted onto the connecting pipe. The air ring has a second air inlet corresponding to the first air inlet of the connecting pipe, and multiple second air inlets are offset from the first air inlet in the circumferential direction of the connecting pipe. During the rotation of the connecting pipe, the first and second air inlets can be switched to open different fluid channels. Compressed air can enter the fluid channel set in the connecting pipe through the second and first air inlets. The leakage ring has a second exhaust port corresponding to the first exhaust port of the connecting pipe, and compressed air can flow out from the fluid channel through the first and second exhaust ports. The feed ring has a second adhesive inlet corresponding to the first adhesive inlet of the connecting pipe, and adhesive can enter the fluid channel through the second and first adhesive inlets. The beneficial effects of this invention are as follows: By setting up an air intake ring, a leakage ring, and a feeding ring connected to a connecting pipe, air intake, exhaust, and feeding each have their own independent transmission channels, preventing mutual interference. This reduces cross-contamination between the adhesive and air, and avoids instability in flow rate and working pressure caused by leakage or mixing, thereby improving the accuracy of the adhesive application process. Due to the excellent sealing, the adhesive will not be wasted due to unnecessary leakage, reducing operating costs and the possibility of other substances entering between the rotating unit and the connecting pipe, thus reducing wear on mechanical parts and extending the service life of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the assembly structure of the connecting pipe, air ring, leakage ring, and feed ring according to an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the connecting pipe according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the connecting pipe and rotating unit according to an embodiment of the present invention;

[0023] Figure 4 This is an exploded view of the glue applicator according to an embodiment of the present invention;

[0024] Figure 5 This is an assembly diagram of the glue applicator gun according to an embodiment of the present invention;

[0025] Figure 6 yes Figure 5 A cross-sectional view at angle AA;

[0026] Figure 7 is Figure 6 the enlarged structural schematic view of part a in the middle;

[0027] Figure 8 is the structural schematic view of the rotating unit and the electromagnetic valve unit in the embodiment of the utility model;

[0028] Figure 9 is the angle structural schematic view of the rotating unit in the embodiment of the utility model;

[0029] Figure 10 is the exploded structural schematic view of the rotating unit in the embodiment of the utility model;

[0030] Figure 11 is the exploded schematic view of the air ring, the leakage ring and the feeding ring in the embodiment of the utility model;

[0031] Figure 12 is the structural schematic view of the connecting pipe in the embodiment of the utility model;

[0032] Figure 13 is the structural schematic view of the control valve unit in the embodiment of the utility model;

[0033] Figure 14 is the structural schematic view of the locking unit in the embodiment of the utility model;

[0034] Figure 15 is the structural schematic view of the gluing unit in the embodiment of the utility model;

[0035] Figure 16 is the structural schematic view of the gluing gun and the robot connection in the embodiment of the utility model.

[0036] In the figure, 100, glue gun; 1, connecting pipe; 11, fluid passage; 12, first air inlet; 13, first air outlet; 14, first glue inlet; 15, guide; 151, guide hole; 152, connecting pin; 2, control valve unit; 21, first cover; 22, first spring; 23, first piston; 24, first cylinder; 241, fourth air inlet; 25, valve needle; 251, second packing seal; 26, sealing assembly; 261, first sealing sleeve; 262, first packing seal; 3, glue applying unit; 31, glue nozzle mounting piece; 311, nozzle mounting hole; 32, nozzle; 321, glue outlet; 33, nozzle gasket; 34, glue nozzle housing; 4, rotating unit; 41, first housing; 411, third air inlet; 412, third air outlet; 413, third glue inlet; 414, air inlet; 42, air ring; 421, second air inlet; 422, first sealing ring; 423, second sealing ring; 43, leakage ring; 431, second air outlet; 44, feeding ring; 441, second glue inlet; 442, third sealing ring; 443, third through hole; 5, glue supply unit; 51, glue inlet; 52, first glue outlet; 6, electromagnetic valve unit; 7, locking unit; 71, first locking ring; 72, second locking ring; 73, stop ring; 200, robot; 201, fifth axis of the robot; 202, sixth axis of the robot. DETAILED DESCRIPTION

[0037] The specific embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0039] In the description of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, it can be direct connection, or indirect connection through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0041] In the embodiment of the application, "parallel" refers to the state that the angle formed by straight lines, straight lines and surfaces, or surfaces is -1°-1°. In addition, "perpendicular" refers to the state that the angle formed by straight lines, straight lines and surfaces, or surfaces is 89°-91°. Equal distance, equal angle or equal area refers to the state that the tolerance range is -1%-1%.

[0042] As shown in Figures 1 to 16 The utility model embodiment preferred embodiment's one glue gun 100, include: connecting pipe 1, setting up in control valve unit 2 of connecting pipe 1 one end and setting up in glue unit 3 of connecting pipe 1 other end, still include the rotation unit 4 of setting in connecting pipe 1, setting in glue supply unit 5 of rotation unit 4 one side and setting in electromagnetic valve unit 6 of rotation unit 4 other side.

[0043] Among them, connecting pipe 1 is relatively rotatable unit 4 rotatable.

[0044] Specifically, referring to Figure 2 As shown in the figure, a plurality of glue coating channels (not marked in the figure) are arranged in the connecting pipe 1, the glue coating channels include a fluid channel 11, a first air inlet 12, a first air outlet 13 and a first glue inlet 14, the fluid channel 11 is arranged along the axial direction of the connecting pipe 1, the first air inlet 12, the first air outlet 13 and the first glue inlet 14 are arranged on the side wall of the connecting pipe 1 and respectively communicated with the fluid channel 11, and a plurality of first air inlets 12 are arranged staggered along the axial direction of the connecting pipe 1.

[0045] The first air inlets 12 are staggered along the axial direction of the connecting pipe 1, that is, each first air inlet 12 is located on a different circumference of the side wall of the connecting pipe 1. Meanwhile, on the connecting pipe 1, the line connecting the first air inlet 12 and the first material inlet 14 of the fluid channel 11 is parallel to the axial direction of the connecting pipe 1, but the line connecting the first air inlet 12 and the first material inlet 14 of the fluid channel 11 is staggered with respect to the axial direction of the connecting pipe 1.

[0046] Referring to Figure 1 and 3 As shown in the figures, the rotating unit 4 comprises a first housing 41, an air ring 42, a leakage ring 43 and a material ring 44, and the air ring 42, the leakage ring 43 and the material ring 44 are sequentially and sealingly arranged on the connecting pipe 1.

[0047] Specifically, the air ring 42 is provided with a plurality of second air inlets 421 corresponding to the positions of the first air inlets 12 in the axial direction of the connecting pipe 1, and the plurality of second air inlets 421 are staggered with respect to the first air inlets 12 in the circumferential direction of the connecting pipe 1. The leakage ring 43 is provided with a second air outlet 431 corresponding to the position of the first air outlet 13 in the axial direction of the connecting pipe 1. The material ring 44 is provided with a second material inlet 441 corresponding to the position of the first material inlet 14 in the axial direction of the connecting pipe 1. During the rotation of the connecting pipe 1, when one of the first air inlets 12 is in communication with the second air inlet 421, the other first air inlets 12 are staggered and disconnected from the second air inlets 421, and the first air outlet 13 is in communication with the second air outlet 431, and the first material inlet 14 is in communication with the second material inlet 441.

[0048] Referring to Figure 8 and Figure 9 As shown in the figures, the first housing 41 is provided with a third air inlet 411, a third air outlet 412 and a third material inlet 413, which are respectively in communication with the second air inlet 421, the second air outlet 431 and the second material inlet 441.

[0049] The gas ring 42 is mainly connected by a plurality of concentric rings, a plurality of second air inlets 421 are formed on each concentric ring, and each concentric ring can cover the circumferential side wall of the connecting pipe 1 on which a first air inlet 12 is located in a circumferential direction. When one first air inlet 12 is communicated with one second air inlet 421, other first air inlets 12 and second air inlets 421 are not communicated, that is, other first air inlets 12 are directed to the side wall of the gas ring 42 at this time. In order to meet the condition that only one first air inlet is communicated with one second air inlet and the rest are not communicated, the least common multiple of the interval angle of the first air inlet and the interval angle of the second air inlet is 360, for example: 120° and 45°, which is applied in the application: the first air inlets 12 on the connecting pipe 1 are arranged at an interval of 120°, that is, the positions of the three first air inlets are 0°, 120° and 240°; if the plurality of second air inlets 421 on the gas ring 42 are arranged at an interval of 45° at this time, assuming that the second air inlet 421 communicated with the first air inlet 12 is 0°, then the positions of the remaining second air inlets 421 are 45°, 90°, 135°, 180°, 225°, 270° and 315°, and the remaining second air inlets 421 do not have a second air inlet 421 at the same position as the first air inlet 12, that is, there is no other communicated first air inlet 12 and second air inlet 421.

[0050] In the embodiment of the utility model, 3 fluid passages 11 are arranged in the connecting pipe 1, one first air inlet 12 is arranged corresponding to one fluid passage 11, therefore, 3 first air inlets 12 are arranged on the connecting pipe 1 and the three first air inlets 12 are staggered, the gas ring 42 includes three concentric rings, when one first air inlet 12 is communicated with the second air inlet 421 of a certain concentric ring, the other two first air inlets 12 are all disconnected with the second air inlet 421 in dislocation, that is, the other two first air inlets 12 are not communicated with the second air inlet 421.

[0051] The inner side of the contact part of the adjacent two concentric rings and the inner side of the concentric ring located at the end part are provided with first mounting grooves, the first mounting grooves are provided with first sealing rings 422 and abut against the connecting pipe 1; the outer side of the contact part of the adjacent two concentric rings and the outer side of the concentric ring located at the end part are provided with second mounting grooves, the second mounting grooves are provided with second sealing rings 423 and abut against the first shell 41. Preferably, the first sealing ring 422 is a U-shaped ring; preferably, the second sealing ring 423 is an O-shaped ring.

[0052] Specifically, the leakage ring 43 is arranged at the first exhaust port 13 of the connecting pipe 1, and the leakage ring 43 is also arranged at the air inlet 414 and the third exhaust port 412 of the first shell 41. A plurality of second exhaust ports 431 are arranged on the leakage ring 43, and the second exhaust ports 431 are respectively communicated with the first exhaust port 13, the third exhaust port 412 and the air inlet 414. The third exhaust port 412 is arranged at the contact position of the rotating unit and the electromagnetic valve unit.

[0053] The compressed air enters the first shell 41 of the rotating unit 4 from the air inlet 414, flows through the second exhaust port 431 of the leakage ring 43, and then exits the rotating unit 4 through the third exhaust port 412 communicated with the second exhaust port 431 and enters the electromagnetic valve unit 6. In the electromagnetic valve unit 6, the compressed air is branched and output through the opening and closing action. Then, the compressed air enters the air ring 42 of the rotating unit 4 from the third air inlet 411, and then reaches the air ring 42 from the second air inlet 421 of the air ring 42, and then enters the fluid channel 11 of the connecting pipe from the first air inlet 12 communicated with the second air inlet 41.

[0054] Specifically, the feeding ring 44 is provided with a plurality of second glue inlets 441, and the two ends of the feeding ring 44 are also provided with third sealing rings 442. The first shell 41 of the rotating unit 4 is provided with two third glue inlets 413, and the third glue inlets 413 are communicated with the glue supply unit 5. The glue flows into the rotating unit 4 from the third glue inlet 413 of the glue supply unit. The feeding ring 441 is arranged between the two third glue inlets 413, and the two ends of the feeding ring 441 are provided with third sealing rings 442. The glue enters the feeding ring 441 from the third glue inlet 413, flows into the feeding ring 441 through the third through hole 443 on the feeding ring 441, and then flows into the fluid channel 11 from the first glue inlet 114 on the connecting pipe 1.

[0055] The air ring 42, the leakage ring 43 and the feeding ring 44 are arranged between the rotating assembly 4 and the connecting pipe 1. The air ring 42 can realize the entry of air into the fluid channel 11, the feeding ring 44 can realize the transportation of the glue, and the leakage ring 43 can realize the transmission of the excess air out of the fluid channel 11. The air ring 42, the leakage ring 43 and the feeding ring 44 form independent transmission channels with the connecting pipe 1 and the first shell 41, respectively. The entry and exit of air will not affect each other, and the entry of glue will not be affected by air, which ensures the stability of the working pressure of the glue gun during work, and further provides stable pressure for the application of glue, and makes a strong guarantee for the application of stable glue.

[0056] The utility model discloses, connecting pipe 1 both ends are provided with control valve unit 2 and gluing unit 3, and rotary unit 4 both sides are provided with glue supply unit 5 and solenoid valve unit 6. Among them, glue supply unit 5 is the structure of providing the glue material, and make the glue material flow to rotary unit 4, and gluing unit 3 is equipped with glue material export, and it is used to flow out the glue material to the need gluing car body sheet metal lap joint, and control valve unit 2 is provided with valve needle 25, and valve needle is used for controlling the opening and closing of glue material export 321, and then controls the smearing of glue material, and solenoid valve unit is the movement of control valve needle 25.

[0057] Specifically, referring to the figure, Figure 10 As shown, control valve unit 2 includes first cover body 21, first spring 22, first piston 23, first cylinder body 24 and valve needle 25, first cylinder body 24 is arranged in connecting pipe 1 and abuts with the inner wall of connecting pipe 1, fourth air inlet 241 is arranged on first cylinder body 24, first spring 22 and first piston 23 are arranged between first cover body 21 and first cylinder body 24, and first spring 22 is arranged on one side of first piston 23, the other side of first piston 23 is connected with valve needle 25, valve needle 25 is arranged in fluid passage 11, and the other side of valve needle 25 can block glue outlet.

[0058] In the embodiment, first cylinder body 24 is fixedly connected with connecting pipe 1 through a screw, and a cylinder gasket is further arranged between the two, and the cylinder gasket is arranged to prevent leakage of compressed air. Second packing seal 251 is further arranged on valve needle 25, and second packing seal 251 is arranged in first cylinder body 24 to seal compressed air in first cylinder body 24, and valve needle 25 is fixedly connected with first piston 23 through a screw.

[0059] Compressed air enters the inside of first cover body 21 and first cylinder body 24 from fourth air inlet 241, pushes valve needle 25 to overcome the elastic force of first spring 22 to make linear motion, so that valve needle 25 is separated from glue material export 321 of gluing unit 3. When the solenoid valve of solenoid valve unit 6 is in a closed state, there is no compressed air in first cylinder body 24, and valve needle 25 and first piston 23 make linear motion under the elastic force of first spring 22, until they are in close contact with glue material export 321 to block glue material export 321, so as to realize the reciprocating motion of valve needle 25.

[0060] Specifically, the glue supply unit 5 is provided with a glue inlet 51 and a first glue outlet 52, the glue inlet 51 is a channel for the glue to enter the glue gun 100, and the first glue outlet 52 is a channel for the glue to leave the glue supply unit 5 and enter the rotating unit 4. Since the rotating unit 4 is in communication with the connecting pipe 1, the connecting pipe 1 is provided with a first glue inlet 114, and the first glue inlet 114 is in communication with the fluid channel 11. That is, the glue flows out of the rotating unit 4, flows into the inside of the connecting pipe 1 through the first glue inlet 114. Under the action of the control valve unit 2 and the electromagnetic valve unit 6, the glue flows in the connecting pipe 1 to the side of the glue applying unit 3. The glue applying unit 3 is provided with a glue outlet 321, and the fluid channel 11 is in communication with the glue outlet 321, that is, the glue finally flows to the glue applying unit 3 from the glue outlet 321 thereof and flows out to the joint of the vehicle body sheet metal that needs to be glued.

[0061] As shown in Figure 4 and Figure 9 In some specific embodiments of the present application, the control valve unit 2 further comprises a sealing assembly 26, the sealing assembly 26 comprises a first sealing sleeve 261 and a first plug seal 262 arranged at both ends of the first sealing sleeve 261, the first sealing sleeve 261 is sleeved on the valve needle 25, and the first plug seal 262 can block the third glue inlet 413. The first plug seal 262 and the first sealing sleeve 261 move with the linear motion of the valve needle 25, and the first plug seal 262 and the first sealing sleeve can be used to block the glue and provide a guide function for the valve needle 25.

[0062] The sealing assembly 26 provided in the embodiment of the present application can effectively prevent high-pressure glue and high-pressure gas from leaking from the valve needle 25.

[0063] As shown in Figure 15 In some specific embodiments of the present application, the glue applying unit 3 comprises a glue nozzle mounting piece 31, a nozzle 32, a nozzle glue pad 33 and a glue nozzle shell 34; the glue outlet 321 is arranged on the nozzle 32, the nozzle 32 mounting hole 311 is arranged on the glue nozzle mounting piece 31, the nozzle 32 is mounted on the nozzle 32 mounting hole 311 of the glue nozzle mounting piece 31, the nozzle 32 glue pad is arranged between the nozzle 32 and the glue nozzle mounting piece 31, and the glue nozzle shell 34 is sleeved on the glue nozzle mounting piece 31 and the nozzle 32 protrudes from the glue nozzle shell 34; the glue nozzle mounting piece 31 is fixedly arranged on one end of the connecting pipe 1 by screws.

[0064] Specifically, the glue nozzle shell 34 is connected and fixed with the glue nozzle mounting piece 31 by screws, and a counterbore is arranged in the glue nozzle shell 34 for placing the nozzle 32. The nozzle glue pad 33 is placed between the nozzle 32 and the glue nozzle mounting piece 31 to prevent glue leakage.

[0065] As shown inFigure 10 As shown in some specific embodiments of the utility model, the connecting pipe 1 is provided with a guide 15 at the connection with the glue applying unit 3, the guide 15 is provided with a guide hole 151 and a connecting pin 152, the glue nozzle mounting member 31 is connected with the connecting pin 152, and the valve needle 25 penetrates the guide hole 151.

[0066] Specifically, the guide 15 is used to fix the position of the valve needle 25, when the valve needle 25 penetrates the guide hole 151, the valve needle 25 is fixed in the guide hole 151, so that the position of the valve needle 25 can be fixed all the time when the valve needle 25 moves in the fluid channel 11, and the valve needle 25 can accurately open and close the glue outlet 321.

[0067] In some specific embodiments of the utility model, the connecting pipe 1 is provided with three fluid channels 11, the control valve unit 2 is provided with three valve needles 25, and the glue applying unit 3 is provided with three glue outlets 321.

[0068] In this embodiment, one valve needle 25 is inserted in one fluid channel 11, and one valve needle 25 corresponds to one glue outlet 321. The linear reciprocating motion of the valve needle 25 in the fluid channel 11 can control the opening and closing of the glue outlet 321.

[0069] The utility model discloses three fluid channels 11, three valve needles 25 and three glue outlets 321 are provided to meet the spraying requirements of complex workpieces at different angles.

[0070] In some specific embodiments of the utility model, the glue applying gun 100 further comprises a locking unit 7, the locking unit 7 is sleeved on the connecting pipe 1 and is arranged on the side of the rotating unit 4 away from the glue supply unit 5, the locking unit 7 comprises a first locking ring 71, a second locking ring 72, a stop ring 73 and a screw, the second locking ring 72 is connected and arranged in the first locking ring 71 and is connected with the stop ring 73, the second locking ring 72 is in contact with the connecting pipe 1, the stop ring 73 is in abutment with the rotating unit 4, the first locking ring 71 and the second locking ring 72 are provided with through holes, and the screw is inserted into the through holes to lock the second locking ring 72 on the connecting pipe 1.

[0071] Referring to Figure 16 As shown, the utility model also provides a glue applying equipment, the glue applying equipment comprises a robot 200 and the glue applying gun 100 of any one of the above, the connecting pipe 1 of the glue applying gun 100 is connected with the sixth shaft 202 of the robot, the rotating unit 4 of the glue applying gun is fixedly connected with the fifth shaft 201 of the robot, and the fifth shaft 201 of the robot is connected with the sixth shaft 202 of the robot.

[0072] Specifically, the glue applying gun 100 is connected with the fifth axis 201 of the robot and the sixth axis 202 of the robot, wherein the rotating unit 4 is fixedly connected with the fifth axis of the robot, and the connecting pipe 1 is connected with the sixth axis 202 of the robot. The rotating unit 4 drives the fifth axis 201 of the robot to rotate, the fifth axis of the robot drives the sixth axis of the robot to rotate, and then drives the connecting pipe 1 to rotate.

[0073] The working process of the utility model is as follows: on the one hand, the glue material enters the glue applying gun 100 from the glue supply unit 5, flows to the third glue material inlet 413 of the first shell of the rotating unit 4 through the glue inlet 51 and the first glue outlet 52 of the glue supply unit 5, and then flows to the fluid channel 11 in the connecting pipe 1 through the second glue material inlet 441 of the feeding ring and the first glue material inlet 14 of the connecting pipe, and the glue material flows to the glue material outlet 321 of the glue applying unit 3 along the fluid channel 11. On the other hand, the compressed air enters the glue applying gun 100 from the air inlet 414 of the rotating unit 4, enters the electromagnetic valve unit 6 from the third air outlet 412, and then flows to the third air inlet 411, and then flows to the fluid pipe 11 through the second air inlet 421 and the first air inlet 12. The compressed air pushes the glue material to flow to the glue material outlet 321 after entering the fluid channel, and the excess compressed air can be discharged from the fluid channel 11 through the first air outlet 13, and then enters the electromagnetic valve unit 6 through the second air outlet 421 and the third air outlet 412. The electromagnetic valve unit 6 also makes the control valve unit 2 move linearly, so as to realize the opening and closing control of the glue material outlet 321, and then control the outflow of the glue material.

[0074] In summary, the utility model provides a glue applying gun and glue applying equipment, which comprises a rotating unit and a connecting pipe rotatable relative to the rotating unit. In the process of rotating the connecting pipe, the first air inlet and the second air inlet, the first air outlet and the second air outlet, and the first glue material inlet and the second glue material inlet can be switched to communicate with each other, so as to correspondingly open different fluid channels. The utility model realizes independent transmission channels for air inlet, air outlet and feeding by arranging the air inlet ring, the leakage ring and the feeding ring to communicate with the connecting pipe, so that the channels do not affect each other, the cross contamination between the glue material and the air can be reduced, the flow and working pressure caused by leakage or mixing are avoided, and the precision of the glue applying process is improved. Due to the good sealing performance, the glue material will not be wasted due to unnecessary leakage, the use cost is reduced, the possibility of other substances entering between the rotating unit and the connecting pipe is reduced, the wear of the mechanical parts is reduced, and the service life of the equipment is prolonged.

[0075] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary technical personnel in the technical field, some improvements and replacements can be made without departing from the technical principles of the utility model, and these improvements and replacements should also be regarded as the protection range of the utility model.

Claims

1. A glue applicator, characterized in that, Includes a rotating unit and a connecting pipe that can rotate relative to the rotating unit; The connecting pipe is provided with multiple adhesive application channels. Each adhesive application channel includes a fluid channel, a first air inlet, a first exhaust outlet, and a first adhesive inlet. The fluid channel is arranged along the axial direction of the connecting pipe. The first air inlet, the first exhaust outlet, and the first adhesive inlet are located on the side wall of the connecting pipe and are respectively connected to the fluid channel. The multiple first air inlets are staggered along the axial direction of the connecting pipe. The rotating unit includes a first housing, an air ring, a leakage ring, and a feed ring, wherein the air ring, the leakage ring, and the feed ring are sequentially and sealed onto the connecting pipe; The air ring is provided with a plurality of second air inlets in the axial direction of the connecting pipe, corresponding to the position of the first air inlet, and the plurality of second air inlets are offset from the first air inlet in the circumferential direction of the connecting pipe. The leakage ring is provided with a second exhaust port in the axial direction of the connecting pipe, corresponding to the position of the first exhaust port. The feed ring is provided with a second adhesive inlet in the axial direction of the connecting pipe, corresponding to the position of the first adhesive inlet. During the rotation of the connecting pipe, when one of the first air inlets is connected to the second air inlet, the other first air inlets are offset from the second air inlets and disconnected, and the first exhaust port is connected to the second exhaust port, and the first adhesive inlet is connected to the second adhesive inlet. The first housing is provided with a third air inlet, a third exhaust outlet, and a third adhesive inlet, which are respectively connected to the second air inlet, the second exhaust outlet, and the second adhesive inlet.

2. The glue-applying gun according to claim 1, characterized in that, It also includes a control valve unit and an adhesive application unit respectively disposed at both ends of the connecting pipe. The adhesive application unit includes an adhesive outlet, and the control valve unit includes a valve needle, which is disposed in the fluid channel and can be inserted into the adhesive outlet.

3. The glue-applying gun according to claim 2, characterized in that, The control valve unit further includes a first cover, a first spring, a first piston, and a first cylinder. The first cylinder is disposed at the end of the connecting pipe, and a fourth air inlet is provided at the contact point between the first cylinder and the connecting pipe. The first spring and the first piston are disposed between the first cover and the first cylinder, and the first spring is disposed on one side of the first piston, while the other side of the first piston is connected to the valve needle.

4. The glue-applying gun according to claim 3, characterized in that, The control valve unit further includes a sealing assembly, which includes a first sealing sleeve and first plug seals disposed at both ends of the first sealing sleeve. The first sealing sleeve is sleeved on the valve needle, and the first plug seals can block the first adhesive inlet.

5. The glue applicator gun according to claim 2, characterized in that, It also includes a glue supply unit and a solenoid valve unit respectively disposed on both sides of the rotating unit. The third air inlet and the third exhaust outlet are both disposed at the contact point with the solenoid valve unit and are connected to the solenoid valve unit. The glue supply unit is used to supply glue and flow to the third glue inlet of the rotating unit.

6. The glue applicator gun according to claim 5, characterized in that, The glue application unit includes a nozzle mounting component, a nozzle, a nozzle gasket, and a nozzle housing; the glue outlet is located on the nozzle, the nozzle mounting component has a nozzle mounting hole, the nozzle is mounted on the nozzle mounting hole of the nozzle mounting component, the nozzle gasket is located between the nozzle and the nozzle mounting component, the nozzle housing is sleeved on the nozzle mounting component and the nozzle protrudes from the nozzle housing; the nozzle mounting component is fixedly mounted to one end of the connecting pipe by screws.

7. The glue applicator gun according to claim 6, characterized in that, A guide is provided at the connection between the connecting tube and the glue application unit. The guide has a guide hole and a connecting pin. The glue nozzle mounting part is connected to the connecting pin, and the valve needle passes through the guide hole.

8. The glue-applying gun according to claim 2, characterized in that, The connecting pipe is provided with three fluid channels, the control valve unit is provided with three valve needles, and the glue application unit is provided with three glue application ports.

9. The glue applicator gun according to claim 5, characterized in that, Also includes: A locking unit is sleeved on the connecting tube and located on the side of the rotating unit away from the glue supply unit. The locking unit includes a first locking ring, a second locking ring, a retaining ring, and a screw. The second locking ring is connected to the first locking ring and is connected to the retaining ring. The second locking ring contacts the connecting tube, and the retaining ring abuts against the rotating unit. The first locking ring and the second locking ring are provided with through holes, and the screw is inserted into the through holes to lock the second locking ring on the connecting tube.

10. An adhesive coating device, characterized in that, The adhesive application equipment includes a robot and an adhesive application gun as described in any one of claims 1-9. The rotating unit of the adhesive application gun is fixedly connected to the fifth axis of the robot, the fifth axis of the robot is connected to the sixth axis of the robot, the sixth axis of the robot is connected to the connecting tube of the adhesive application gun, and the rotating unit can drive the fifth axis of the robot to rotate.

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