Multi-station aluminum profile glue filling device and working method thereof
By using the airbag sealing and oil-absorbing cotton cleaning technology of the multi-station aluminum profile glue filling device, the problems of needing to open holes for observation and cleaning of overflowing glue in the existing technology are solved, realizing an efficient and overflow-free glue filling process and ensuring the cleanliness of the aluminum profile surface.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-08
- Publication Date
- 2026-03-31
AI Technical Summary
The existing process of filling aluminum profiles with adhesive requires opening small holes to observe whether the adhesive has been filled completely, which increases the number of steps and requires cleaning up any overflowing adhesive, affecting efficiency and cleaning difficulty. In addition, the overflowing adhesive is prone to solidification.
A multi-station aluminum profile glue filling device is adopted, which uses an airbag to seal the glue injection hole. The glue is filled and stopped as soon as the glue is full by expanding the airbag to avoid overflow. Oil-absorbing cotton is used to clean the surface of the airbag to prevent solidification.
It enables the determination of full colloid filling without the need for observation through a small hole, reducing the number of processes, avoiding colloid overflow and solidification, ensuring the cleanliness of the aluminum profile surface, improving colloid filling efficiency and reducing cleaning difficulty.
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Figure CN117225645B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of aluminum profile adhesive filling, and more specifically, to a multi-station aluminum profile adhesive filling device and its working method. Background Technology
[0002] Aluminum profiles are the main material for making doors and windows. There is a very important process in the production of aluminum profiles, which is the glue injection process. This process can make the connection between the aluminum profiles of doors and windows stronger and the sealing better.
[0003] In the existing technology, the glue filling of aluminum profiles involves inserting the glue filling head of the glue filling machine into the glue filling hole of the aluminum profile. In order to ensure that the glue inside the aluminum profile is filled, a small hole is opened on the opposite side of the glue filling hole on the aluminum profile. By observing whether the glue overflows from the small hole, it can be determined whether the glue inside the aluminum profile is filled.
[0004] Firstly, using the observation of overflowing adhesive from small holes to determine whether the aluminum profile is fully filled with adhesive requires drilling holes in the aluminum profile, which undoubtedly adds a step to the adhesive filling process and reduces filling efficiency. Some equipment uses multi-station adhesive filling to compensate for the time-consuming hole-drilling step. While this method improves filling efficiency, the overflowing adhesive still needs to be cleaned, adding to the burden of the entire filling process. Furthermore, the overflowing adhesive solidifies quickly upon contact with air; if not cleaned promptly, it will solidify on the aluminum profile surface, increasing the difficulty of cleaning.
[0005] Therefore, a multi-station aluminum profile glue filling device and its working method are proposed. Summary of the Invention
[0006] To address the problems existing in the prior art, the present invention aims to provide a multi-station aluminum profile glue filling device and its working method, which can stop filling the glue as soon as it is full, avoiding glue waste. No glue overflow occurs during the entire glue filling process, and it is not necessary to open a small hole to know whether the glue is full. This reduces the glue filling process, and the absence of glue overflow ensures the cleanliness of the aluminum profile surface, eliminating the need for subsequent cleaning.
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A multi-station aluminum profile glue filling device includes a table, a first electric cylinder is fixedly connected to the middle of the lower outer surface of the table, the telescopic shaft of the first electric cylinder passes through and extends to the top of the table, and a workstation is fixedly connected to the upper end of the telescopic shaft of the first electric cylinder.
[0009] The fixing mechanism is located around the upper outer surface of the table. The fixing mechanism is used to fix multiple aluminum profiles in multiple positions, thereby realizing multi-station glue filling.
[0010] The glue-filling mechanism is located around the workstation, and multiple glue-filling mechanisms are perpendicularly corresponding to multiple fixed mechanisms. The glue-filling mechanism is used to fill the interior of the aluminum profile with glue.
[0011] The glue filling mechanism includes a glue filling seat fixedly connected to the perimeter of the workstation. A glue filling tube is fixedly connected to the lower end of the glue filling seat, and an air bladder is fixedly sleeved in the middle of the glue filling tube. An air chamber is fixedly connected to the inner side of the glue filling seat, and a piston is slidably connected to the upper end of the air chamber. A conduit is fixedly connected between the lower end of the air chamber and the air bladder, and a pressure valve is provided at the connection between the interior of the air chamber and the conduit.
[0012] Furthermore, the filling tube includes an outer filling tube fixedly connected to the lower end of the filling seat, and an inner filling tube fixedly connected inside the outer filling tube. A filling sleeve is slidably sleeved on the lower outer side of the inner filling tube, and the upper end of the filling sleeve is fixedly connected to the airbag. Filling ports are opened on both sides of the bottom of the filling sleeve, and the bottom of the filling sleeve is in a closed state.
[0013] Furthermore, the filling seat has a cleaning chamber inside, and a second electric cylinder is fixedly connected to the upper end of the cleaning chamber. The lower end of the telescopic shaft of the second electric cylinder is fixedly connected to the filling tube. Oil-absorbing cotton is movably embedded in the lower end of the cleaning chamber, and the oil-absorbing cotton absorbs lubricating oil.
[0014] Furthermore, the lower outer surface corners of the tabletop are all fixedly connected with support legs.
[0015] Furthermore, the frictional force between the airbag and the glue injection hole of the aluminum profile in the initial state is less than the force required for the airbag to deform and the sliding frictional force between the glue filling sleeve and the glue filling inner tube.
[0016] Furthermore, the extension distance of the first electric cylinder is greater than the distance between the glue filling mechanism and the fixing mechanism.
[0017] Furthermore, the extension distance of the second electric cylinder is greater than the distance between the airbag and the oil-absorbing cotton.
[0018] Furthermore, the fixing mechanism includes a sliding groove formed around the outer surface of the upper end of the table, and a slider is slidably connected inside the sliding groove. A fixing plate is fixedly connected to the upper end of the slider, and a spring is fixedly connected between the outer side of the slider and the sliding groove.
[0019] A working method for a multi-station aluminum profile adhesive filling device includes the following steps:
[0020] S1: Fix the aluminum profile to the tabletop using a fixing mechanism;
[0021] S2: The first electric cylinder drives the glue filling mechanism to move, inserting the glue filling tube into the glue injection hole of the aluminum profile. Then, the piston is pressed to push the gas inside the air chamber into the air bag through the conduit, causing the air bag to expand. The expansion of the air bag seals the glue injection hole from the inside to prevent leakage during glue injection.
[0022] S3: After the glue injection is completed, pull out the glue filling tube and use the second electric cylinder to pull the glue filling tube into the cleaning chamber so that the airbag comes into contact with the oil-absorbing cotton. Use the oil-absorbing cotton to apply lubricating oil to the surface of the airbag.
[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0024] (1) This solution uses the first electric cylinder to pull the work platform downwards, and the work platform drives the glue filling mechanism to move downwards in sync, so that the glue filling tube is inserted into the glue injection hole on the aluminum profile and the air bag is also inserted into the glue injection hole. Then, the piston is pressed to push the gas inside the air chamber into the air bag through the conduit, so that the air bag expands. The expansion of the air bag seals the glue injection hole from the inside to prevent leakage during glue injection. No glue overflow occurs during the entire glue injection process, and the absence of glue overflow ensures the cleanliness of the aluminum profile surface, eliminating the need for subsequent cleaning.
[0025] (2) In the initial state of this design, the airbag is inflated, and the filling sleeve is completely fitted onto the filling inner tube. Since there are filling ports on both sides of the bottom of the filling sleeve, and the bottom of the filling sleeve is closed, the filling inner tube is blocked by the filling sleeve and cannot be filled with glue. However, when the filling tube is inserted into the glue injection hole, the inflation of the airbag pushes the filling sleeve to slide along the filling inner tube, so that the bottom of the filling sleeve is no longer blocking the filling inner tube. At this time, the glue flows out through the filling inner tube into the filling sleeve and is filled by the filling sleeve. The adhesive is injected into the aluminum profile through the injection port. As the adhesive is injected, the aluminum profile gradually fills with adhesive. After the adhesive is full, the air bladder is compressed by the adhesive, causing the gas inside the air bladder to flow back into the air chamber through the conduit. At this time, the air bladder contracts and pulls the filling sleeve back to its original position, causing the filling sleeve to seal the filling inner tube again, thus interrupting the adhesive filling. This allows the adhesive to be filled and stopped immediately, avoiding adhesive waste. It is not necessary to open a small hole to know whether the adhesive is full, reducing the number of adhesive injection steps.
[0026] (3) After the glue filling is completed, the first electric cylinder extends and pushes the work platform to move up, so that the glue filling tube is pulled out of the aluminum profile. At this time, the second electric cylinder works to pull the glue filling tube into the cleaning chamber, so that the airbag comes into contact with the oil-absorbing cotton. The oil-absorbing cotton is used to apply lubricating oil to the surface of the airbag, which can prevent the glue from adhering to the surface of the airbag and solidifying during the next glue injection, thus affecting the deformation of the airbag. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0028] Figure 2 This is a schematic diagram of the frontal planar structure of the present invention;
[0029] Figure 3 This is an exploded view of the glue-filling mechanism of the present invention;
[0030] Figure 4 This is a schematic diagram of the airbag expansion and change structure in the glue filling mechanism of the present invention;
[0031] Figure 5 This is a partial cross-sectional view of the glue-filling mechanism of the present invention;
[0032] Figure 6 This is a schematic diagram of the exploded structure of the fixing mechanism of the present invention.
[0033] Explanation of the labels in the diagram:
[0034] 1. Tabletop; 2. Fixing mechanism; 21. Fixing plate; 22. Slider; 23. Slide; 24. Spring; 3. First electric cylinder; 4. Workstation; 5. Glue filling mechanism; 51. Glue filling seat; 52. Glue filling outer tube; 53. Glue filling inner tube; 54. Glue filling sleeve; 55. Glue filling port; 56. Air chamber; 57. Piston; 58. Guide tube; 59. Air bladder; 511. Cleaning chamber; 512. Second electric cylinder; 513. Oil-absorbing cotton; 6. Support leg. Detailed Implementation
[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0036] Example 1:
[0037] Please see Figures 1 to 4 and Figure 6 A multi-station aluminum profile glue filling device includes a table 1. A first electric cylinder 3 is fixedly connected to the middle of the lower outer surface of the table 1. The telescopic shaft of the first electric cylinder 3 passes through and extends to the top of the table 1. A workstation 4 is fixedly connected to the upper end of the telescopic shaft of the first electric cylinder 3. Support legs 6 are fixedly connected to the corners of the lower outer surface of the table 1. The telescopic distance of the first electric cylinder 3 is greater than the distance between the glue filling mechanism 5 and the fixing mechanism 2.
[0038] Fixing mechanism 2 is located around the upper outer surface of the table 1. Fixing mechanism 2 is used to fix multiple aluminum profiles in multiple positions, thereby realizing multi-station glue filling.
[0039] The fixing mechanism 2 includes a sliding groove 23 formed around the outer surface of the upper end of the table 1, and a slider 22 is slidably connected inside the sliding groove 23. A fixing plate 21 is fixedly connected to the upper end of the slider 22, and a spring 24 is fixedly connected between the outer side of the slider 22 and the sliding groove 23.
[0040] The glue filling mechanism 5 is located around the workstation 4. Multiple glue filling mechanisms 5 are perpendicularly corresponding to multiple fixing mechanisms 2. The glue filling mechanism 5 is used to fill the interior of the aluminum profile with glue.
[0041] The glue filling mechanism 5 includes a glue filling seat 51 fixedly connected to the perimeter of the workstation 4. A glue filling tube is fixedly connected to the lower end of the glue filling seat 51, and an air bladder 59 is fixedly sleeved in the middle of the glue filling tube. An air chamber 56 is fixedly connected to the inner side of the glue filling seat 51, and a piston 57 is slidably connected to the upper end of the air chamber 56. A conduit 58 is fixedly connected between the lower end of the air chamber 56 and the air bladder 59. An air pressure valve is provided at the connection between the interior of the air chamber 56 and the conduit 58.
[0042] By adopting the above technical solution, firstly, the fixing plates 21 in each group of fixing mechanisms 2 are pulled away from each other, so that the fixing plates 21 are separated from each other by sliding the slider 22 in the slide groove 23. Then, the aluminum profile that needs to be filled with glue is placed on the table 1 between the two fixing plates 21. Next, the fixing plates 21 are released, and under the action of the elastic reset of the spring 24, the fixing plates 21 are pushed to reset and move closer together, and the aluminum profile is clamped and fixed by the fixing plates 21.
[0043] Then, the first electric cylinder 3 pulls the worktable 4 downward, and the worktable 4 drives the glue filling mechanism 5 to move downward in sync, so that the glue filling tube is inserted into the glue injection hole on the aluminum profile and the air bag 59 is also inserted into the glue injection hole. Then, the piston 57 is pressed to push the gas inside the air chamber 56 into the air bag 59 through the conduit 58, so that the air bag 59 expands. The expansion of the air bag 59 seals the glue injection hole from the inside to prevent leakage during glue injection. No glue overflow occurs during the entire glue injection process, and the absence of glue overflow ensures the cleanliness of the aluminum profile surface, eliminating the need for subsequent cleaning.
[0044] like Figure 3 and Figure 4 As shown, the filling tube includes an outer filling tube 52 fixedly connected to the lower end of the filling seat 51, and an inner filling tube 53 fixedly connected inside the outer filling tube 52. A filling sleeve 54 is slidably sleeved on the lower outer side of the inner filling tube 53, and the upper end of the filling sleeve 54 is fixedly connected to the airbag 59. Filling ports 55 are opened on both sides of the bottom of the filling sleeve 54, and the bottom of the filling sleeve 54 is in a closed state.
[0045] In the initial state, the friction between the airbag 59 and the glue injection hole of the aluminum profile is less than the force required for the deformation of the airbag 59 and the sliding friction between the glue filling sleeve 54 and the glue filling inner tube 53, ensuring that when the glue filling tube is inserted or pulled out.
[0046] By adopting the above technical solution, in the initial state, the airbag 59 contracts, at which point the filling sleeve 54 is completely fitted onto the filling inner tube 53. Since the filling sleeve 54 has filling ports 55 on both sides of its bottom, and the bottom of the filling sleeve 54 is closed, the filling inner tube 53 is blocked by the filling sleeve 54 and cannot be filled with glue. However, when the filling tube is inserted into the glue injection hole, the airbag 59 expands and pushes the filling sleeve 54 to slide along the filling inner tube 53, so that the bottom of the filling sleeve 54 is no longer blocking the filling inner tube 53. At this time, the glue flows out through the filling inner tube 53 to the filling hole. The adhesive is injected into the aluminum profile through the filling port 55 inside the sleeve 54. As the adhesive is injected, the aluminum profile is gradually filled with adhesive. After the adhesive is filled, the air bladder 59 is compressed under the pressure of the adhesive, so that the gas inside the air bladder 59 flows back to the air chamber 56 through the conduit 58. At this time, the air bladder 59 contracts and pulls the filling sleeve 54 to reset, so that the filling sleeve 54 seals the filling inner tube 53 again, thereby interrupting the adhesive filling. This can achieve the goal of stopping the adhesive filling as soon as it is full, avoiding the waste of adhesive. It is not necessary to open a small hole to know whether the adhesive is full, thus reducing the adhesive filling process.
[0047] like Figure 5 As shown, the filling seat 51 has a cleaning chamber 511 inside, and a second electric cylinder 512 is fixedly connected to the upper end of the cleaning chamber 511. The lower end of the telescopic shaft of the second electric cylinder 512 is fixedly connected to the filling tube. An oil-absorbing cotton 513 is movably embedded in the lower end of the cleaning chamber 511, and the oil-absorbing cotton 513 absorbs lubricating oil. The telescopic distance of the second electric cylinder 512 is greater than the distance between the airbag 59 and the oil-absorbing cotton 513.
[0048] By adopting the above technical solution, after the glue filling is completed, the first electric cylinder 3 extends and pushes the work platform 4 upward, thereby causing the glue filling tube to be pulled out of the aluminum profile. At this time, the second electric cylinder 512 works to pull the glue filling tube into the cleaning chamber 511, so that the airbag 59 comes into contact with the oil-absorbing cotton 513. The oil-absorbing cotton 513 is used to apply lubricating oil to the surface of the airbag 59, which can prevent the glue from adhering to the surface of the airbag 59 and solidifying during the next glue injection, thus affecting the deformation of the airbag 59.
[0049] A working method for a multi-station aluminum profile adhesive filling device includes the following steps:
[0050] S1: Fix the aluminum profile to the tabletop 1 using the fixing mechanism 2;
[0051] S2: The first electric cylinder 3 drives the glue filling mechanism 5 to move, inserting the glue filling tube into the glue injection hole of the aluminum profile. Then, the piston 57 is pressed to push the gas inside the air chamber 56 into the air bag 59 through the conduit 58, causing the air bag 59 to expand. The expansion of the air bag 59 seals the glue injection hole from the inside to prevent leakage during glue injection.
[0052] S3: After the glue injection is completed, pull out the glue filling tube and use the second electric cylinder 512 to pull the glue filling tube into the cleaning chamber 511 so that the airbag 59 comes into contact with the oil-absorbing cotton 513. Use the oil-absorbing cotton 513 to apply lubricating oil to the surface of the airbag 59.
[0053] Instructions for use: First, pull the fixing plates 21 in each set of fixing mechanisms 2 away from each other, so that the fixing plates 21 slide and separate from each other in the slide groove 23 using the slider 22. Then, place the aluminum profile that needs to be filled with glue on the table 1 between the two fixing plates 21. Next, release the fixing plates 21. Under the elastic reset action of the spring 24, push the fixing plates 21 to reset and move closer together. The aluminum profile is clamped and fixed by the fixing plates 21.
[0054] Then, the first electric cylinder 3 pulls the worktable 4 downwards, and the worktable 4 drives the glue filling mechanism 5 to move downwards simultaneously, so that the glue filling tube is inserted into the glue injection hole on the aluminum profile and the airbag 59 is also inserted into the glue injection hole. Next, the piston 57 is pressed, and the gas inside the air chamber 56 is pushed into the airbag 59 through the conduit 58, causing the airbag 59 to inflate. The expansion of the airbag 59 seals the glue injection hole from the inside to prevent leakage during glue injection. As the glue is injected, the inside of the aluminum profile is gradually filled with glue. After the glue is filled, the airbag 59 is compressed under the pressure of the glue, so that the gas inside the airbag 59 passes through the conduit. 58 flows back into the air chamber 56. At this time, the airbag 59 contracts and pulls the filling sleeve 54 back to its original position, so that the filling sleeve 54 seals the filling inner tube 53 again, thereby interrupting the filling. After the filling is completed, the first electric cylinder 3 extends and pushes the work platform 4 upward, so that the filling tube is pulled out of the aluminum profile. At this time, the second electric cylinder 512 works and pulls the filling tube into the cleaning chamber 511, so that the airbag 59 comes into contact with the oil-absorbing cotton 513. The oil-absorbing cotton 513 is used to apply lubricating oil to the surface of the airbag 59, which can prevent the glue from adhering to the surface of the airbag 59 and solidifying during the next glue injection, thus affecting the deformation of the airbag 59.
[0055] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.
Claims
1. A multi-station aluminum profile glue filling device, comprising a table top (1), a first electric cylinder (3) is connected to the outer center of the table top (1), and the first electric cylinder (3) is matched with a workbench (4), characterized in that: It also comprises: a fixing mechanism (2) arranged on the table top (1) for fixing multiple aluminum profiles in multiple directions respectively, thereby realizing multi-station glue filling; and a glue filling mechanism (5) arranged around the workbench (4), wherein multiple glue filling mechanisms (5) are vertically corresponding to multiple fixing mechanisms (2), and the glue filling mechanism (5) is used for glue filling operation inside the aluminum profile; the lower end of the outer surface of the table top (1) is fixedly connected with the first electric cylinder (3), the telescopic shaft of the first electric cylinder (3) penetrates and extends above the table top (1), and the upper end of the telescopic shaft of the first electric cylinder (3) is fixedly connected with the workbench (4); the fixing mechanism (2) is arranged around the upper end of the outer surface of the table top (1), and the glue filling mechanism (5) comprises a glue filling seat (51) fixedly connected around the workbench (4), the lower end of the glue filling seat (51) is fixedly connected with a glue filling pipe, the middle part of the glue filling pipe is fixedly sleeved with an air bag (59), the inner side of the glue filling seat (51) is fixedly connected with an air chamber (56), the lower end of the air chamber (56) is fixedly connected with the air bag (59), and the inner side of the air chamber (56) is provided with an air pressure valve at the connection position with the air pipe (58); the glue filling pipe comprises a glue filling outer pipe (52) fixedly connected to the lower end of the glue filling seat (51), and the inner side of the glue filling outer pipe (52) is fixedly connected with a glue filling inner pipe (53), the outer side of the lower part of the glue filling inner pipe (53) is slidably sleeved with a glue filling sleeve pipe (54), and the upper end of the glue filling sleeve pipe (54) is fixedly connected with the air bag (59), both sides of the bottom of the glue filling sleeve pipe (54) are provided with glue filling openings (55), and the bottom of the glue filling sleeve pipe (54) is in a closed state.
2. The multi-station aluminum profile glue filling device according to claim 1, characterized in that: a cleaning cavity (511) is arranged in the inner side of the glue filling seat (51), and a second electric cylinder (512) is fixedly connected to the upper end of the inner side of the cleaning cavity (511), the lower end of the telescopic shaft of the second electric cylinder (512) is fixedly connected with the glue filling pipe, and an oil absorbing cotton (513) is movably embedded in the lower end of the inner side of the cleaning cavity (511), and the inner side of the oil absorbing cotton (513) is adsorbed with lubricating oil.
3. The multi-station aluminum profile glue filling device according to claim 1, characterized in that: The lower end of the outer surface of the table top (1) is fixedly connected with a supporting leg (6).
4. The multi-station aluminum profile glue-filling device according to claim 2, characterized in that: The frictional force between the air bag (59) in the initial state and the aluminum profile glue injection hole is smaller than the force required for the deformation of the air bag (59) and the sliding frictional force between the glue filling sleeve pipe (54) and the glue filling inner pipe (53).
5. The multi-station aluminum profile glue filling device according to claim 3, characterized in that: The telescopic distance of the first electric cylinder (3) is greater than the distance between the glue filling mechanism (5) and the fixing mechanism (2).
6. The multi-station aluminum profile glue filling device according to claim 2, characterized in that: The telescopic distance of the second electric cylinder (512) is greater than the distance between the air bag (59) and the oil absorbing cotton (513).
7. The multi-station aluminum profile glue filling device according to claim 1, characterized in that: The fixing mechanism (2) comprises a sliding groove (23) opened around the outer surface of the upper end of the table top (1), a sliding block (22) slidably connected inside the sliding groove (23), a fixed plate (21) fixedly connected to the upper end of the sliding block (22), and a spring (24) fixedly connected between the outer side of the sliding block (22) and the sliding groove (23).
8. The working method of the multi-station aluminum profile glue-filling device according to any one of claims 1-7, characterized in that: The method comprises the following steps: S1: fixing the aluminum profile on the table top (1) through the fixing mechanism (2); S2: driving the glue filling mechanism (5) to displace by the first electric cylinder (3), inserting the glue filling pipe into the glue injection hole of the aluminum profile, then pressing the piston (57), pushing the gas in the gas chamber (56) into the air bag (59) through the pipe (58) to make the air bag (59) expand, sealing the glue injection hole from the inside by the expansion of the air bag (59), and preventing leakage during glue injection; S3: after the glue injection is completed, pulling out the glue filling pipe, and using the second electric cylinder (512) to pull the glue filling pipe into the cleaning cavity (511) to make the air bag (59) contact with the oil absorbing cotton (513), and using the oil absorbing cotton (513) to smear lubricating oil on the surface of the air bag (59).
Citation Information
Patent Citations
Multi-station aluminum profile glue filling device and working method thereof
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