Automatic subpackaging device and method for high-viscosity sealant

Abstract

The invention belongs to the technical field of aircraft assembly sealing and gluing, and discloses an automatic high-viscosity sealant subpackaging device and method.The device comprises a profile steel framework, the profile steel framework is divided into four layers from bottom to top, and the layers are separated through steel plates; the integrated control box is arranged on the first layer and is used for realizing single execution action of pneumatic elements, controlling sequential action of moving parts and realizing safety indication and protection functions; the clamping part is mounted on the second layer and is used for clamping the injection barrel; the glue tank is arranged on the third layer and is used for containing a sealant; and the glue injection part is mounted on the fourth layer and injects the sealant in the glue tank into the injection elastic barrel by driving a piston. The technical problems that time and labor are consumed and the quality is difficult to guarantee in the existing manual sealant subpackaging are solved, automatic sealant subpackaging is realized, and the sealant subpackaging quality and the real object quality of field sealing and gluing are guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of aircraft assembly sealing glue coating in aviation manufacturing, and specifically relates to an automatic dispensing device and method for high-viscosity sealant. Background Art

[0002] Sealing glue coating is a subsequent process after the wing box is assembled. The sealant used is a high-viscosity glue with high viscosity. Before the gluing operation, the professional department will prepare the sealant and put it into the glue barrel and then deliver it to the site. When entering the gluing process, the operator will first manually divide the sealant in the glue barrel into the injection barrel, and then load the injection barrel into the glue gun, and then carry out the sealing glue coating operation. The entire sealing glue coating operation must be completed within 4 hours. Since the amount of sealant used in each sealing glue coating is large and the glue liquid is very viscous, it is very difficult to complete the sub-packaging in a short time by hand. At least 8 people or even more are required to perform the sub-packaging at the same time. In addition, it is not easy to completely empty the air in the injection barrel by manual sub-packaging. At the same time, impurities may be mixed in, resulting in bubbles or slag inclusions after sealing glue coating, which directly affects the quality of sealing glue coating. In order to solve the problem that manual sub-packaging of sealant is time-consuming and labor-intensive and the quality is difficult to ensure, it is necessary to realize automatic sub-packaging of sealant. Summary of the invention

[0003] The present invention proposes a high-viscosity sealant automatic dispensing device and method to solve the problems that manual dispensing of sealant before on-site sealing glue coating is time-consuming and labor-intensive, and that it is difficult to completely exhaust the air in the injection barrel during manual dispensing, and that impurities may be mixed in, resulting in bubbles or slag inclusions after sealing glue coating, which directly affects the quality of sealing glue coating. The automatic dispensing of sealant is realized, ensuring the dispensing quality of sealant and the actual quality of on-site sealing glue coating.

[0004] In order to achieve the above invention objectives, the technical solutions adopted in this application are as follows:

[0005] An automatic dispensing device for high-viscosity sealant, comprising:

[0006] The steel frame is divided into four layers from bottom to top, and the layers are separated by steel plates;

[0007] The integrated control box installed on the first floor is used to realize the single execution action of the pneumatic components and control the sequential action of the moving parts, as well as the safety indication and protection functions;

[0008] A clamping component installed on the second layer, which is used for clamping the injection barrel;

[0009] The glue tank installed on the third layer is used to hold the sealant;

[0010] And the glue injection component installed on the fourth layer injects the sealant in the glue tank into the injection barrel by driving the piston.

[0011] As a further solution of the present invention: it also includes a sealing mechanism installed on the third layer, which is used to seal the injection barrel after the injection of glue.

[0012] As a further solution of the present invention: the clamping component includes a moving mechanism and a clamping mechanism, the moving mechanism is a linear guide rail, the clamping mechanism is installed on the linear guide rail and can perform linear reciprocating motion.

[0013] As a further solution of the present invention: a standard cylinder is installed in the same direction on the linear guide rail, and the standard cylinder drives the slider on the linear guide rail to move. The clamping mechanism is installed on the slider of the linear guide rail, and the clamping mechanism includes a pneumatic clamp and a first double-axis cylinder. The injection barrel has a bottom cover that slides along the inner wall. A clamp base that is compatible with the injection barrel is installed on the output end of the first double-axis cylinder, and a guide tube is provided on the clamp base. The pneumatic clamp is used in conjunction with the clamp base.

[0014] As a further solution of the present invention: the clamp mechanism also includes a proximity switch and an induction ring installed in the clamp base, which are used to determine whether the sealant in the injection barrel is full.

[0015] As a further solution of the present invention: the capping mechanism includes a second double-axis cylinder and a capping mechanism, and the capping mechanism is installed on the output end of the second double-axis cylinder to automatically tighten the conical top cap on the glue injection hole of the injection barrel.

[0016] As a further solution of the present invention: the capping mechanism includes a capping machine box, an electric capping machine, a switch guide wheel and a travel pressure plate, the capping machine box is connected to the output end of the second double-axis cylinder, the switch guide wheel is installed on the side of the capping machine box, and the travel pressure plate is arranged below the switch guide wheel.

[0017] As a further solution of the present invention: a base is fixed on the third layer of the steel frame, the glue tank is installed above the base, and a glue cutting mechanism is installed below the base, the glue cutting mechanism includes two symmetrically arranged double-axis guide rod cylinders, a glue cutting head is installed on the double-axis guide rod cylinder, the glue cutting head is designed as an angled structure, a semicircular opening is provided on the glue cutting head, a blade is provided at the bottom of the semicircular opening, the two semicircular openings constitute a circular blade, the diameter of the circular blade is adapted to the outer diameter of the glue outlet hole at the bottom of the glue tank, the circular blade of the glue cutting mechanism is aligned with the glue outlet hole at the bottom of the glue tank, and the glue outlet hole extends out of the bottom surface of the glue tank.

[0018] As a further solution of the present invention: the glue injection component is installed just above the glue tank, and comprises an electric cylinder and a piston. The electric cylinder is connected to the piston via a push rod, and an exhaust hole is provided on the piston.

[0019] As a further solution of the present invention: a detection prism is provided just above the exhaust hole to check the distance between the piston inside the glue tank and the upper surface of the glue liquid.

[0020] As a further solution of the present invention: the internal partition arrangement of the integrated control box includes an electrical control system for controlling the sequential actions of moving parts and a pneumatic control system for realizing individual execution actions of pneumatic components, and the electrical control system also has safety indication and protection functions.

[0021] As a further solution of the present invention: a pneumatic foot switch is also installed on one side of the integrated control box, which is connected to the pneumatic control system.

[0022] A method for automatically dispensing high-viscosity sealant, using the above-mentioned automatic dispensing device, comprises the following steps:

[0023] The piston is pushed vertically downward along the inner wall of the glue tank by the electric cylinder push rod, and the air in the glue tank is discharged from the exhaust hole on the piston. When the piston contacts the upper surface of the glue liquid through the detection prism, the piston stops moving and closes the exhaust hole at the same time;

[0024] Step on the pneumatic foot switch to open the pneumatic clamp, vertically load the injection barrel into the pneumatic clamp and step on the pneumatic foot switch again to clamp the injection barrel, connect the guide tube, use compressed air to lift the bottom cover of the injection barrel, and exhaust the air in the injection barrel. At the same time, the clamp mechanism moves horizontally to the bottom of the glue tank driven by the slider, and the first double-axis cylinder drives the injection barrel to move vertically upward, and automatically pushes open the circular blade of the glue cutting mechanism compressed by the spring through the injection barrel, completing the docking of the glue injection hole on the top of the injection barrel and the glue outlet hole of the glue tank;

[0025] The electric cylinder pushes the piston to move vertically downward along the inner wall of the glue tank, and injects the sealant into the injection barrel through the glue outlet hole at the bottom of the glue tank. When the proximity switch installed in the clamp base detects through the induction ring that the bottom cover of the injection barrel has returned to the bottom position of the injection barrel, it means that the sealant in the injection barrel has been filled. At this time, the electric cylinder drives the piston to move vertically upward along the inner wall of the glue tank for 2S in the reverse direction, and the clamp mechanism after the pressure relief is completed moves vertically downward rapidly, so that the injection hole of the injection barrel is separated from the glue outlet hole at the bottom of the glue tank. At the same time, under the action of the compression springs on both sides of the circular blade, the circumferential side of the circular blade clamps the end of the glue outlet hole at the bottom of the glue tank, and the two blades on the bottom of the circular blade are meshed, and the blade fits with the end face of the glue outlet hole at the bottom of the glue tank to complete the glue cutting;

[0026] The clamping mechanism clamps the injection barrel and moves it horizontally to the bottom of the capping mechanism. The capping machine box automatically moves downward vertically under the push of the second double-axis cylinder. When the switch guide wheel below the left side wall of the capping machine box contacts the connected position of the stroke pressure plate on the left side of the capping mechanism, the electric capping machine in the capping machine box is automatically turned on. The electric capping machine drives the conical top cap to rotate and move downward, and starts to tighten the conical top cap of the injection barrel. When the set tightening torque is reached, the electric capping machine stops rotating. At this time, the second double-axis cylinder drives the capping machine box to start moving upward, so that the electric capping machine is separated from the conical top cap, and the electric capping machine resumes idling until the switch guide wheel of the capping machine box is separated from the connected position of the stroke pressure plate. The electric capping machine stops running and resets with the capping machine box; release the pneumatic clamp, remove the injection barrel, and complete an automatic dispensing of sealant.

[0027] Compared with the prior art, the beneficial effects of this application are:

[0028] 1. This application greatly improves the packing efficiency, reduces the labor intensity of operators, avoids direct contact of manual packing personnel with sealant, and protects the physical and mental health of operators.

[0029] 2. There is no residual air and impurities in the injection barrel after automatic packaging of the present application, which ensures the packaging quality of the sealant and the actual quality of the on-site sealing glue coating.

[0030] The present application is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0032] In the attached picture:

[0033] Figure 1 This is a schematic diagram of the structure of the automatic dispensing device for high-viscosity sealant of this application;

[0034] Figure 2 This is a schematic diagram of the injection barrel structure for this application;

[0035] Figure 3 This is a schematic diagram of the clamping mechanism structure of this application;

[0036] Figure 4 This is a schematic diagram of the glue tank structure for this application;

[0037] Figure 5 This is a schematic diagram of the structure of the glue-cutting mechanism for this application;

[0038] Figure 6 This is a schematic diagram of the capping mechanism structure of this application.

[0039] Explanation of the reference numerals in the figure: 1 caster, 2 steel frame, 3 pneumatic foot switch, 4 injection barrel, 5 bottom cover, 6 glue injection hole, 7 conical top cap, 8 integrated control box, 9 linear guide, 10 slider, 11 pneumatic clamp, 12 conduit, 13 clamp base, 14 proximity switch, 15 induction ring, 16 standard cylinder, 17 connecting plate, 18 first double-axis cylinder, 19 mounting plate, 20 detection prism, 21 glue tank base, 22 glue tank, 23 glue outlet hole, 24 glue cutting mechanism, 25 circular knife edge, 26 blade, 27 capping mechanism, 28 second double-axis cylinder, 29 capping machine box, 30 electric capping machine, 31 switch guide wheel, 32 stroke pressure plate, 33 electric cylinder, 34 push rod, 35 piston, 36 exhaust hole. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] See attached Figure 1-6 The present invention discloses an automatic dispensing device for high-viscosity sealant, which comprises four casters 1 installed at the bottom, and a steel frame 2 having four layers from bottom to top, and the layers are separated by steel plates to form independent intervals. The first layer at the bottom is used to install an integrated control box 8; the second layer plane is used to install a clamping mechanism, and a linear guide is installed below the plane; the third layer is used to install a glue tank and a capping mechanism; and the fourth layer is used to install a glue injection component.

[0042] In this embodiment, an integrated control box 8 is installed on the bottom layer of the steel frame 2, which is divided into left and right isolation areas. The electrical control system is installed on the left part, which is used to control the sequential movements of the moving parts, as well as safety indications and protection functions. The pneumatic part is installed on the right side, which mainly realizes the single execution action of the pneumatic components.

[0043] The clamping component installed on the second layer is used for clamping the injection barrel; the clamping component includes a moving mechanism and a clamping mechanism, the moving mechanism is a straight guide rail 9, and the clamping mechanism is installed on the straight guide rail 9 and can perform linear reciprocating motion. Specifically, the straight guide rail 9 is installed below the second-layer plane of the steel frame 2, and a slider 10 is installed on the straight guide rail 9, and at the same time, the working surface of the slider 10 is ensured to be perpendicular to the horizontal plane. A standard cylinder 16 is installed horizontally in the same direction as the straight guide rail 9, and the push rod of the standard cylinder 16 is connected to the right end surface of the slider 10 through a connecting plate 17 (the connecting plate 17 is designed as a bending structure) to achieve the left and right horizontal movement of the slider 10. A first double-axis cylinder 18 is installed on the mounting plate 19 of the working surface of the slider 10, and it is ensured to be parallel to the working surface of the slider 10 to achieve the up and down vertical movement of the output end of the first double-axis cylinder 18. A set of pneumatic clamps 11 are installed on the top mounting plate surface of the output end of the first double-axis cylinder 18 to clamp and release the injection barrel 4. A clamp base 13 adapted to the injection barrel is installed at the output end of the first double-axis cylinder 18, a guide tube 12 is provided on the clamp base 13, and the pneumatic clamp 11 is used in conjunction with the clamp base 13. The clamp mechanism also includes a proximity switch 14 and an induction ring 15 installed in the clamp base 13, which are used to determine whether the sealant in the injection barrel 4 is full.

[0044] A glue tank base 21 is horizontally installed on the right side of the bottom surface of the third layer of the steel frame 2, and a glue tank 22 is vertically installed on the glue tank base 21. A glue cut-off mechanism 24 is horizontally installed below the glue tank base 21 to ensure that the circumferential side of the circular blade 25 of the glue cut-off mechanism 24 clamps the end of the glue outlet hole 23 at the bottom of the glue tank, and the centers of the two are coaxial, and the blade 26 on the bottom surface of the circular blade 25 is meshed, and the blade 26 fits the end surface of the glue outlet hole 23 at the bottom of the glue tank. A glue liquid plane detection prism 20 inside the glue tank 22 is installed above the top of the glue tank 22 to detect the distance between the piston inside the glue tank 22 and the upper surface of the glue liquid.

[0045] A capping mechanism 27 is vertically installed on the left side of the bottom surface of the third floor, and a second double-axis cylinder 28 is installed on the upper part of the capping mechanism 27. The end mounting plate of the output end of the second double-axis cylinder 28 is connected to the capping machine box 29. The up and down movement of the output end of the second double-axis cylinder 28 drives the capping machine box 29 to move vertically up and down, which is used to automatically tighten the conical top cap 7 of the injection barrel 4. An electric cylinder 33 is coaxially and vertically installed on the right side of the fourth floor of the steel frame 2 with the glue tank 22, and the push rod 34 of the electric cylinder is connected to the piston 35, which is used to push the piston 35 to move vertically up and down along the inner wall of the glue tank 22.

[0046] In the embodiment, when the present application is used for an automatic dispensing device for high-viscosity sealant, the electric cylinder 33 pushes the piston 35 through the push rod 34 to move vertically downward along the inner wall of the glue tank 22, and the air in the glue tank 22 is discharged from the exhaust hole 36 on the piston 35. When the piston 35 is observed to contact the upper surface of the glue liquid through the detection prism 20, the piston 35 stops moving and closes the exhaust hole 36 at the same time. The pneumatic foot switch 3 is stepped on to open the pneumatic clamp 11, the injection barrel 4 is vertically loaded into the pneumatic clamp 11 and the pneumatic foot switch 3 is stepped on again to clamp the injection barrel 4, the clamp guide tube 12 is connected, and the bottom cover 5 of the injection barrel 4 is lifted up by compressed air (in this embodiment, the bottom cover 5 is designed to be arc-shaped), the air in the injection barrel 4 is emptied, and at the same time, the pneumatic clamp 11 automatically moves horizontally to the right to the bottom of the glue tank 22 according to the set program, and then moves vertically upward, and automatically pushes open the circular blade 25 of the glue cutting mechanism 24 compressed by the spring through the injection barrel 4, completing the docking of the glue injection hole 6 at the top of the injection barrel 4 and the glue outlet hole 23 of the glue tank 22. The electric cylinder 33 pushes the piston 34 to move vertically downward along the inner wall of the glue tank 22, and the sealant is injected into the injection barrel 4 through the glue outlet hole 23 at the bottom of the glue tank 22. When the proximity switch 14 installed in the clamp base 13 detects through the induction ring 15 that the bottom cover 5 of the injection barrel has returned to the bottom position of the injection barrel 4, it means that the sealant in the injection barrel 4 has been filled. At this time, the electric cylinder 33 drives the piston 34 to move vertically upward along the inner wall of the glue tank 22 for 2S in the reverse direction, and the pneumatic clamp 11 after the pressure relief is completed quickly moves vertically downward to separate the glue injection hole 6 of the injection barrel 4 from the glue outlet hole 23 at the bottom of the glue tank 22. At the same time, the circumferential side surface of the circular blade 25 clamps the end of the glue outlet hole 23 at the bottom of the glue tank 22 under the action of the rebound of the compression spring on both sides of the circular blade 25, and the two blades 26 on the bottom surface of the circular blade 25 are meshed, and the two blades 26 are fitted with the end surface of the glue outlet hole 23 at the bottom of the glue tank 22 , complete the glue cutting; the pneumatic clamp 11 clamps the injection barrel 4 and moves horizontally to the left to the bottom of the capping mechanism 27, and the capping machine box 29 automatically moves vertically downward under the push of the output end of the second double-axis cylinder 28. When the switch guide wheel 31 below the left side wall of the capping machine box 29 contacts the connected position of the stroke pressing plate 32 on the left side of the capping mechanism 27, the electric capping machine 30 in the capping machine box 29 is automatically turned on, and the electric capping machine 30 drives the conical top cap 7 to rotate and move downward, and starts to tighten the conical top cap 7 of the injection barrel 4. When the set tightening torque is reached, the electric capping machine 30 stops rotating. At this time, the output end of the second double-axis cylinder 28 starts to move upward, so that the electric capping machine 30 is separated from the conical top cap 7, and the electric capping machine 30 resumes idling until the switch guide wheel 31 of the capping machine box 29 is separated from the connected position of the stroke pressing plate 32, and the electric capping machine 30 stops running and resets with the capping machine box 29. Release the pneumatic clamp 11, remove the injection barrel 4, and complete the automatic dispensing of the sealant.

[0047] So far, the purpose of the present invention has been achieved.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic dispensing device for high-viscosity sealant, characterized in that: include: The steel frame is divided into four layers from bottom to top, and the layers are separated by steel plates; The integrated control box installed on the first floor is used to realize the single execution action of the pneumatic components and control the sequential action of the moving parts, as well as the safety indication and protection functions; A clamping component installed on the second layer, which is used for clamping the injection barrel; The glue tank installed on the third layer is used to hold the sealant; And the glue injection component installed on the fourth layer injects the sealant in the glue tank into the injection barrel by driving the piston.

2. The automatic dispensing device for high-viscosity sealant according to claim 1, characterized in that: It also includes a capping mechanism installed on the third layer, which is used to encapsulate the injection barrel after the glue is injected.

3. The automatic dispensing device for high-viscosity sealant according to claim 2, characterized in that: The clamping component includes a moving mechanism and a clamping mechanism, the moving mechanism is a linear guide rail, the clamping mechanism is installed on the linear guide rail and can perform linear reciprocating motion; A standard cylinder is installed in the same direction on the linear guide rail, and the standard cylinder drives the slider on the linear guide rail to move. The clamping mechanism is installed on the slider of the linear guide rail, and the clamping mechanism includes a pneumatic clamp and a first double-axis cylinder. The injection barrel has a bottom cover that slides along the inner wall. A clamping base that is compatible with the injection barrel is installed on the output end of the first double-axis cylinder. A guide tube is provided on the clamping base. The pneumatic clamp is used in conjunction with the clamping base. The clamp mechanism also includes a proximity switch and an induction ring installed in the clamp base, which are used to determine whether the sealant in the injection barrel is full.

4. The automatic dispensing device for high-viscosity sealant according to claim 3, characterized in that: The capping mechanism comprises a second double-axis cylinder and a capping mechanism, wherein the capping mechanism is mounted on the output end of the second double-axis cylinder and automatically tightens the conical top cap on the glue injection hole of the injection barrel.

5. The automatic dispensing device for high-viscosity sealant according to claim 4, characterized in that: The capping mechanism includes a capping machine box, an electric capping machine, a switch guide wheel and a travel pressure plate. The capping machine box is connected to the output end of the second double-axis cylinder, the switch guide wheel is installed on the side of the capping machine box, and the travel pressure plate is arranged below the switch guide wheel.

6. The automatic dispensing device for high-viscosity sealant according to claim 5, characterized in that: A base is fixed on the third layer of the steel frame, the glue tank is installed above the base, and a glue cutting mechanism is installed below the base. The glue cutting mechanism includes two symmetrically arranged double-axis guide rod cylinders, and a glue cutting head is installed on the double-axis guide rod cylinder. The glue cutting head is designed as an angled structure, a semicircular opening is provided on the glue cutting head, and a blade is provided at the bottom of the semicircular opening. The two semicircular openings constitute a circular blade, and the diameter of the circular blade is adapted to the outer diameter of the glue outlet hole at the bottom of the glue tank. The circular blade of the glue cutting mechanism is aligned with the glue outlet hole at the bottom of the glue tank, and the glue outlet hole extends out of the bottom surface of the glue tank.

7. The automatic dispensing device for high-viscosity sealant according to claim 6, characterized in that: The glue injection component is installed just above the glue tank, and comprises an electric cylinder and a piston. The electric cylinder is connected to the piston via a push rod, and an exhaust hole is provided on the piston.

8. The automatic dispensing device for high-viscosity sealant according to claim 7, characterized in that: A detection prism is arranged just above the exhaust hole to check the distance between the piston inside the glue tank and the upper surface of the glue liquid.

9. An automatic dispensing device for high-viscosity sealant according to any one of claims 1 to 8, characterized in that: The integrated control box is internally divided into partitions, including an electrical control system for controlling the sequential movements of moving parts and a pneumatic control system for realizing individual execution movements of pneumatic components. The electrical control system also has safety indication and protection functions. A pneumatic foot switch is also installed on one side of the integrated control box, which is connected to the pneumatic control system.

10. A method for automatically dispensing high-viscosity sealant, using the automatic dispensing device of claim 9, characterized in that: The steps include: The piston is pushed vertically downward along the inner wall of the glue tank by the electric cylinder push rod, and the air in the glue tank is discharged from the exhaust hole on the piston. When the piston contacts the upper surface of the glue liquid through the detection prism, the piston stops moving and closes the exhaust hole at the same time; Step on the pneumatic foot switch to open the pneumatic clamp, vertically load the injection barrel into the pneumatic clamp and step on the pneumatic foot switch again to clamp the injection barrel, connect the guide tube, use compressed air to lift the bottom cover of the injection barrel, and exhaust the air in the injection barrel. At the same time, the clamp mechanism moves horizontally to the bottom of the glue tank driven by the slider, and the first double-axis cylinder drives the injection barrel to move vertically upward, and automatically pushes open the circular blade of the glue cutting mechanism compressed by the spring through the injection barrel, completing the docking of the glue injection hole on the top of the injection barrel and the glue outlet hole of the glue tank; The electric cylinder pushes the piston to move vertically downward along the inner wall of the glue tank, and injects the sealant into the injection barrel through the glue outlet hole at the bottom of the glue tank. When the proximity switch installed in the clamp base detects through the induction ring that the bottom cover of the injection barrel has returned to the bottom position of the injection barrel, it means that the sealant in the injection barrel has been filled. At this time, the electric cylinder drives the piston to move vertically upward along the inner wall of the glue tank for 2S in the reverse direction, and the clamp mechanism after the pressure relief is completed moves vertically downward rapidly, so that the injection hole of the injection barrel is separated from the glue outlet hole at the bottom of the glue tank. At the same time, under the action of the compression springs on both sides of the circular blade, the circumferential side of the circular blade clamps the end of the glue outlet hole at the bottom of the glue tank, and the two blades on the bottom of the circular blade are meshed, and the blade fits with the end face of the glue outlet hole at the bottom of the glue tank to complete the glue cutting; The clamping mechanism clamps the injection barrel and moves it horizontally to the bottom of the capping mechanism. The capping machine box automatically moves downward vertically under the push of the second double-axis cylinder. When the switch guide wheel below the left side wall of the capping machine box contacts the connected position of the stroke pressure plate on the left side of the capping mechanism, the electric capping machine in the capping machine box is automatically turned on. The electric capping machine drives the conical top cap to rotate and move downward, and starts to tighten the conical top cap of the injection barrel. When the set tightening torque is reached, the electric capping machine stops rotating. At this time, the second double-axis cylinder drives the capping machine box to start moving upward, so that the electric capping machine is separated from the conical top cap, and the electric capping machine resumes idling until the switch guide wheel of the capping machine box is separated from the connected position of the stroke pressure plate. The electric capping machine stops running and resets with the capping machine box; release the pneumatic clamp, remove the injection barrel, and complete an automatic dispensing of sealant.

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