Press head and rolling method for installing sealing strip

Abstract

The application relates to the technical field of automobile sealing strip installation, in particular to a special pressing head for sealing strip installation and a rolling method. The special pressing head for sealing strip installation comprises a mounting seat, a guide frame and a rolling wheel driven by a rolling motor. The inside of the mounting seat is provided with a clamping channel for the passage of a pasting type sealing strip. The guide frame is located on the outlet side of the clamping channel. The inside of the guide frame is provided with a guide channel. The guide channel is connected with the clamping channel. A first limiting groove for limiting the side wall of the pasting type sealing strip is arranged on a guide wheel in the guide channel. The rolling wheel is located on the outlet side of the guide channel. A second limiting groove for limiting the side wall of the pasting type sealing strip is arranged on the rolling wheel. The special pressing head for sealing strip installation guarantees the output stability of the pasting type sealing strip, avoids the swing of the pasting type sealing strip after being stressed, improves the pasting position precision of the pasting type sealing strip and improves the pasting effect of the pasting type sealing strip.

Description

Technical Field

[0001] This invention relates to the field of automotive sealing strip installation technology, specifically to a special pressure head and rolling method for installing sealing strips. Background Technology

[0002] Automotive weatherstripping is primarily used to improve a vehicle's dustproof, waterproof, and noise-reducing performance. Currently, the most common installation method for automotive weatherstripping is adhesive strip application. Adhesive strips have adhesive tape on the bottom and are installed to the appropriate location on the vehicle by pressing or rolling. Commonly used tapes include 3M's ST1200 and 4112 models.

[0003] To improve the installation efficiency and adhesion effect of adhesive sealing strips, existing technologies utilize automatic rolling devices for installation. For example, Chinese patent document CN114516377A discloses an automatic rolling device and method for automotive door sealing strips. In this automatic rolling device, the rolling roller applies clamping force to the sealing strip via a floating cylinder, creating a flexible rolling structure. The floating cylinder adjusts the clamping force, solving the problem that slight dimensional fluctuations in the door sheet metal or sealing strip density due to signal transmission delays affect the rolling quality.

[0004] However, in actual use, the aforementioned automatic rolling device often uses cylindrical rollers. During installation, the rollers apply approximately 90N of pressure to the sealing strip, causing the sealing strip to sway left and right on the cylindrical rollers. This results in lower accuracy in positioning the sealing strip and the vehicle's mounting area, affecting the adhesion of the sealing strip and consequently impacting the vehicle's overall dustproof, waterproof, and noise-reducing performance.

[0005] In addition, due to the shape of the sealing strip itself, the pressure provided by the cylindrical rolling roller on the 3M tape at the bottom of the sealing strip is uneven, which greatly affects the rolling quality of the sealing strip, resulting in defects such as peeling and large fluctuations in the installation position of the sealing strip, thus reducing the overall sealing performance of the vehicle.

[0006] In summary, how to design a pressure head structure to avoid the swaying of the automotive sealing strip under force, improve the accuracy of the sealing strip's bonding position, and enhance the bonding effect of the automotive sealing strip during the installation process has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] The purpose of this invention is to provide a pressure head structure during the installation of automotive sealing strips, so as to avoid the swaying of the automotive sealing strips after being subjected to force, improve the accuracy of the bonding position of the automotive sealing strips, and enhance the bonding effect of the automotive sealing strips.

[0008] To achieve the above objectives, the present invention adopts the following solution: a special pressure head for applying sealing strips is proposed, including a mounting base, a guide frame, and a rolling wheel driven by a rolling motor;

[0009] The mounting base has an internal clamping channel for the adhesive sealing strip to pass through;

[0010] The guide frame is located on the outlet side of the clamping channel. The guide frame has an internal guide channel for the adhesive sealing strip to pass through. The guide frame is installed on the side wall of the mounting base. The guide channel is connected to the clamping channel.

[0011] The guide channel is provided with guide wheels, which are arranged along the extension direction of the guide channel. The guide wheels are provided with a first limiting groove for limiting the tape sidewall of the adhesive sealing strip.

[0012] The rolling roller is located on the exit side of the guide channel. The rolling roller is provided with a second limiting groove for limiting the side wall of the adhesive sealing strip. The bottom of the second limiting groove matches the outline of the adhesive sealing strip.

[0013] Preferably, a baffle is provided on one side of the roller, and the baffle is embedded in the end of the roller. In this configuration, the baffle extends the side wall of the roller, further improving the limiting effect of the roller on the adhesive sealing strip, reducing the axial movement of the adhesive sealing strip on the roller, and thus further improving the accuracy of the adhesive sealing strip's bonding position.

[0014] Preferably, the mounting base has a split structure, comprising a base, a left side plate, and a right side plate. The left and right side plates are mounted on the base with fasteners. A clamping channel runs through the left and right side plates, and a cutting groove is provided between the left and right side plates, perpendicular to the clamping channel. This split structure reduces the overall manufacturing difficulty of the device, facilitates maintenance, and allows a cutting blade to easily reach into the clamping channel to cut the adhesive sealing strip. This improves the dimensional accuracy of the cut adhesive sealing strip, thereby enhancing the application accuracy at the interface and further improving the adhesion effect of the adhesive sealing strip.

[0015] Preferably, the cutting groove has a support pad for the adhesive sealing strip, which is mounted on the base and has a groove for the cutting blade to be embedded in. This design ensures that when cutting the adhesive sealing strip, the cutting blade is embedded in the groove, facilitating a complete cut and improving the smoothness of the cut.

[0016] Preferably, a limiting plate is provided on one side of the cutting groove, the limiting plate being arranged parallel to the clamping channel, and a retaining groove is provided on the limiting plate, perpendicular to the clamping channel. This arrangement allows the retaining groove to further guide the cutting blade, thereby improving the cutting accuracy of the adhesive sealing strip.

[0017] Preferably, the top of the mounting base is provided with a window. This design reduces the contact area between the adhesive sealing strip and the clamping channel, thereby reducing wear on the adhesive sealing strip caused by the mounting base and improving the passage of the adhesive sealing strip within the clamping channel.

[0018] Preferably, the guide wheel is an H-beam wheel, which is connected to the inner wall of the guide channel via a rotating shaft. This configuration allows the first limiting groove on the H-beam wheel to restrict the sidewall of the adhesive tape, preventing the adhesive sealing strip from shifting along the axial direction of the H-beam wheel, thus improving the stability of guiding the adhesive sealing strip. The H-beam wheel rotates as the adhesive sealing strip is stretched, thereby reducing the frictional resistance between the H-beam wheel and the adhesive tape.

[0019] Preferably, the bottom of the second limiting groove is inverted U-shaped.

[0020] The present invention also proposes a rolling method for applying a special pressure head to the above-mentioned sealing strip, comprising the following steps:

[0021] During the guiding and discharging stage, the adhesive sealing strip passes through the clamping channel of the mounting base and enters the guiding channel in the guide frame. The adhesive tape of the adhesive sealing strip is embedded in the first limiting groove on the guide wheel. Under the conveying of the feeding unit, the adhesive sealing strip continuously extends out from the outlet of the guiding channel.

[0022] During the rolling and limiting stage, the rolling roller at the exit of the guide channel engages the adhesive sealing strip in the second limiting groove, and the rolling unit applies a uniform clamping force to the adhesive sealing strip through the rolling roller.

[0023] Preferably, after the rolling and limiting stage, the step of cutting the adhesive sealing strip is also included, in which the cutting knife enters the clamping channel through the cutting groove in the mounting base and cuts the adhesive sealing strip.

[0024] The sealing strip application head and rolling method provided by this invention have the following outstanding substantive features and significant progress compared with the prior art:

[0025] 1. The special pressure head for applying the sealing strip uses the clamping channel in the mounting base to initially shape and clamp the adhesive sealing strip, making it easy for the adhesive sealing strip to enter the guide channel in the guide frame in a straight state. The guide wheels arranged in rows in the guide channel use the first limiting groove on their side wall to limit the tape side wall of the adhesive sealing strip, preventing the adhesive sealing strip from moving along the axial direction of the guide wheel during the discharge process, ensuring the stability of the adhesive sealing strip output, improving the accuracy of the pasting position, and enhancing the pasting effect of the adhesive sealing strip.

[0026] 2. The special pressure head for applying the sealing strip uses the second limiting groove on the roller to limit the side wall of the adhesive sealing strip. In this way, the second limiting groove on the guide channel outlet side effectively restricts the movement of the adhesive sealing strip relative to the roller path. When the roller applies pressure to the adhesive sealing strip, the bottom of the second limiting groove, which matches the contour of the adhesive sealing strip, can evenly transmit the pressure through the roller to the adhesive sealing strip, thereby ensuring the uniformity of the pressure on the tape and further improving the bonding quality of the adhesive sealing strip.

[0027] 3. The special pressure head for applying the sealing strip utilizes the first limiting groove on the guide wheel and the second limiting groove on the rolling wheel to limit the adhesive sealing strip on both sides, further ensuring the output stability of the adhesive sealing strip, avoiding the swaying caused by the adhesive sealing strip under force, improving the accuracy of the adhesive sealing strip's bonding position, and enhancing the bonding effect of the adhesive sealing strip. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of a special pressure head for applying a sealing strip in an embodiment of the present invention;

[0029] Figure 2 yes Figure 1 A three-dimensional structural diagram of a special pressure head for applying a sealing strip from another perspective;

[0030] Figure 3 yes Figure 1 The main view;

[0031] Figure 4 yes Figure 3 The right view;

[0032] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle;

[0033] Figure 6 This is a three-dimensional structural diagram of the mounting base and guide frame;

[0034] Figure 7 yes Figure 6 Top view;

[0035] Figure 8 yes Figure 6 A bottom view;

[0036] Figure 9 This is a schematic diagram of the internal structure of the mounting base and guide frame;

[0037] Figure 10 This is a schematic diagram of the assembly structure of the mounting base and guide frame.

[0038] Reference numerals: 1. Adhesive sealing strip; 2. Mounting base; 3. Guide frame; 4. Roller; 5. Guide wheel; 6. First limiting groove; 7. Adhesive tape; 8. Second limiting groove; 9. Clamping channel; 10. Guide channel; 21. Base; 22. Left side plate; 23. Right side plate; 24. Cutting groove; 25. Pad; 26. Limiting plate; 27. Window; 41. Baffle; 251. Groove; 261. Slot. Detailed Implementation

[0039] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0040] like Figure 1-10 As shown in the figure, this embodiment of the invention proposes a special pressure head for applying sealing strips, which aims to avoid the swaying of the automotive sealing strip after being subjected to rolling pressure during the application of automotive sealing strips, improve the accuracy of the bonding position of the automotive sealing strip, and enhance the bonding effect of the automotive sealing strip.

[0041] The present invention proposes a special pressure head for applying a sealing strip, which utilizes a first limiting groove on the guide wheel and a second limiting groove on the rolling wheel to limit the adhesive sealing strip on both sides. The clamping channel in the mounting base provides initial shaping and clamping for the adhesive sealing strip, facilitating its entry into the guide channel of the guide frame in a straight state. The guide wheels arranged in rows within the guide channel use the first limiting groove on their sidewalls to limit the tape sidewalls of the adhesive sealing strip, preventing the adhesive sealing strip from shifting axially along the guide wheels during discharge. The second limiting groove on the guide channel outlet side effectively restricts the shifting of the adhesive sealing strip relative to the rolling path. When the rolling wheel applies pressure to the adhesive sealing strip, the bottom of the second limiting groove, which matches the contour of the adhesive sealing strip, can evenly transmit the pressure through the rolling wheel to the adhesive sealing strip, thereby ensuring the uniformity of pressure on the tape and further improving the bonding quality of the adhesive sealing strip.

[0042] [Special pressure head for sealing strip installation]

[0043] like Figure 1 As shown, a special pressure head for applying a sealing strip includes a mounting base 2, a guide frame 3, and a rolling wheel 4 driven by a rolling motor.

[0044] The mounting base 2 has a clamping channel 9 inside for the adhesive sealing strip 1 to pass through.

[0045] like Figure 2 As shown, the guide frame 3 is located on the outlet side of the clamping channel 9. The guide frame 3 has an internal guide channel 10 for the adhesive sealing strip 1 to pass through. The guide frame 3 is mounted on the side wall of the mounting base 2. The guide channel 10 is connected to the clamping channel 9.

[0046] like Figure 4 As shown, guide wheels 5 are provided inside the guide channel 10. The guide wheels 5 are arranged along the extension direction of the guide channel 10. The guide wheels 5 are provided with a first limiting groove 6 for limiting the side wall of the adhesive tape 7 of the adhesive sealing strip 1.

[0047] like Figure 5 As shown, the roller 4 is located on the exit side of the guide channel 10. The roller 4 is provided with a second limiting groove 8 for limiting the sidewall of the adhesive sealing strip 1. The bottom of the second limiting groove 8 matches the contour of the adhesive sealing strip 1. For example, the bottom of the second limiting groove 8 is inverted U-shaped, matching the outer contour of the adhesive door sealing strip.

[0048] Among them, guide wheel 5 is an H-shaped wheel. For example... Figure 8 As shown, the I-beam wheel is connected to the inner wall of the guide channel 10 via a rotating shaft. This configuration allows the first limiting groove 6 on the I-beam wheel to restrict the sidewall of the adhesive tape 7, preventing the adhesive sealing strip 1 from shifting along the axial direction of the I-beam wheel, thus improving the stability of guiding the adhesive sealing strip 1. The I-beam wheel rotates as the adhesive sealing strip 1 is stretched, thereby reducing the frictional resistance between the I-beam wheel and the adhesive tape 7.

[0049] To further improve the limiting performance of the rolling roller 4 on the adhesive sealing strip 1, such as Figure 3 Combination Figure 4 As shown, a baffle 41 is provided on one side of the roller 4. The baffle 41 is embedded in the end of the roller 4. With this configuration, the baffle 41 extends the side wall of the roller 4, further improving the limiting effect of the roller 4 on the adhesive sealing strip 1, reducing the axial movement of the adhesive sealing strip 1 on the roller 4, and thus further improving the accuracy of the adhesive sealing strip 1's bonding position.

[0050] The sealing strip application head proposed in this embodiment of the invention utilizes the first limiting groove 6 on the guide wheel 5 and the second limiting groove 8 on the rolling wheel 4 to form limiting on both sides of the adhesive sealing strip 1, ensuring the output stability of the adhesive sealing strip 1, avoiding the swaying of the adhesive sealing strip 1 after being subjected to force, improving the accuracy of the adhesive sealing strip 1's adhesive position, and enhancing the adhesive effect of the adhesive sealing strip 1.

[0051] Split mounting base structure

[0052] like Figure 6 As shown, the mounting base 2 has a split structure. The mounting base 2 includes a base 21, a left side plate 22, and a right side plate 23. The left side plate 22 and the right side plate 23 are mounted on the base 21 by fasteners. A clamping channel 9 passes through the left side plate 22 and the right side plate 23. A cutting groove 24 is provided between the left side plate 22 and the right side plate 23. The cutting groove 24 is perpendicular to the clamping channel 9.

[0053] This design, with the mounting base 2 featuring a split structure, reduces the overall processing difficulty of the device and facilitates maintenance. The cutting groove 24 allows the cutting blade to easily extend into the clamping channel 9 to cut the adhesive sealing strip 1, improving the dimensional accuracy of the cut adhesive sealing strip 1. This, in turn, improves the installation accuracy of the adhesive sealing strip 1 at the interface, further enhancing the adhesion effect of the adhesive sealing strip 1.

[0054] like Figure 9 Combination Figure 10 As shown, the cutting groove 24 has a support 25 inside for supporting the adhesive sealing strip 1. The support 25 is mounted on the base 21. The support 25 has a groove 251 for embedding the cutting blade. With this configuration, when cutting the adhesive sealing strip 1, the cutting blade is embedded in the groove 251, which helps to completely cut the adhesive sealing strip 1 and improves the smoothness of the cut of the adhesive sealing strip 1.

[0055] like Figure 7 As shown, the top of the mounting base 2 is provided with a window 27. This design reduces the contact area between the adhesive sealing strip 1 and the clamping channel 9, thereby reducing wear on the adhesive sealing strip 1 caused by the mounting base 2 and improving the passage of the adhesive sealing strip 1 within the clamping channel 9.

[0056] like Figure 9 As shown, a limiting plate 26 is provided on one side of the cutting groove 24. The limiting plate 26 is arranged parallel to the clamping channel 9. A slot 261 is provided on the limiting plate 26. The slot 261 is perpendicular to the clamping channel 9. With this arrangement, the slot 261 is used to further guide the cutting blade, thereby further improving the cutting accuracy of the adhesive sealing strip 1.

[0057] Rolling method

[0058] When using the special pressure head for applying the sealing strip proposed in this embodiment of the invention, such as... Figure 5 Combination Figure 9 As shown, it includes the following steps:

[0059] During the guiding and discharging stage, the adhesive sealing strip 1 passes through the clamping channel 9 of the mounting base 2 and enters the guiding channel 10 in the guide frame 3. The adhesive tape 7 of the adhesive sealing strip 1 is embedded in the first limiting groove 6 on the guide wheel 5. Under the conveying of the feeding unit, the adhesive sealing strip 1 continuously extends out from the outlet of the guiding channel 10.

[0060] The clamping channel 9 forms a preliminary shaping clamp for the adhesive sealing strip 1, which facilitates the adhesive sealing strip 1 to enter the guide channel 10 in the guide frame 3 in a straight state. The guide wheels 5 arranged in rows in the guide channel 10 use the first limiting groove 6 set on their side wall to limit the side wall of the adhesive tape 7 of the adhesive sealing strip 1, which prevents the adhesive sealing strip 1 from moving along the axial direction of the guide wheel 5 during the discharge process, ensuring the stability of the output of the adhesive sealing strip 1, which is conducive to improving the accuracy of the pasting position and improving the pasting effect of the adhesive sealing strip 1.

[0061] During the rolling and limiting stage, the rolling roller 4 engages the adhesive sealing strip 1 in the second limiting groove 8 at the exit of the guide channel 10, and the rolling unit applies a uniform pressing force to the adhesive sealing strip 1 through the rolling roller 4.

[0062] The second limiting groove 8 limits the side wall of the adhesive sealing strip 1, thus effectively restricting the movement of the adhesive sealing strip 1 relative to the rolling path on the exit side of the guide channel 10. When the rolling roller 4 applies pressure to the adhesive sealing strip 1, the bottom of the second limiting groove 8, which matches the contour of the adhesive sealing strip 1, can evenly transmit the pressure through the rolling roller 4 to the adhesive sealing strip 1, thereby ensuring the uniformity of the pressure on the tape 7 and further improving the adhesion quality of the adhesive sealing strip 1.

[0063] The process includes a step of cutting the adhesive sealing strip 1 after the rolling and limiting stage. The cutting knife enters the clamping channel 9 through the cutting groove 24 in the mounting base 2 and cuts the adhesive sealing strip 1.

[0064] [The process of applying sealing strips to car door seals using a special pressure head]

[0065] When installing door seals on automobiles, automatic rolling equipment is typically used to apply adhesive seals. For example, a door seal adhesive installation system disclosed in Chinese patent document CN112896375A is employed. However, in actual use, this door seal adhesive installation system suffers from uneven pressure applied by the rolling rollers to the 3M adhesive tape at the bottom of the adhesive seal, significantly affecting the rolling quality and reducing the installation effect. With prolonged use, the door seals are prone to peeling, thus compromising the door's sealing performance.

[0066] When the special pressure head for applying the sealing strip proposed in this embodiment of the invention is used in conjunction with the above-mentioned door sealing strip pasting and installation system, the mounting base is assembled at the output port of the discharge unit, and the rolling roller on the original equipment is replaced with a rolling roller with a second limiting groove.

[0067] The adhesive sealing strip 1 passes through the clamping channel 9 of the mounting base 2 via the discharge unit and enters the guide channel 10 in the guide frame 3. The adhesive tape 7 of the adhesive sealing strip 1 is embedded in the first limiting groove 6 on the guide wheel 5. The rolling wheel 4 at the exit of the guide channel 10 engages the adhesive sealing strip 1 in the second limiting groove 8.

[0068] In the door sealing strip adhesive installation system, the motion device drives the connecting plate unit to move to the starting point of the door sealing strip adhesive area, so that the adhesive surface of the adhesive sealing strip that has been peeled off the protective strip adheres to the door.

[0069] In the door sealing strip adhesive installation system, the discharge power unit ensures that the output distance of the adhesive sealing strip from the discharge unit is equal to the displacement of the connecting plate unit relative to the door driven by the motion device. The first limiting groove 6 on the guide wheel 5 and the second limiting groove 8 on the rolling wheel 4 respectively limit the adhesive sealing strip from both sides, further ensuring the smooth output of the adhesive sealing strip, preventing swaying under force, and improving the accuracy of the adhesive sealing strip's bonding position. The rolling device applies uniform pressure to the adhesive sealing strip through the rolling wheel 4 to ensure a good bonding effect. The protective tape recovery unit collects the protective tape that has been peeled off from the adhesive sealing strip.

[0070] The motion device drives the connecting plate unit to travel around the contour of the door, completing the adhesive sealing strip installation and rolling.

[0071] This invention is not limited to the specific technical solutions described in the above embodiments. Besides the above embodiments, this invention may have other implementation methods. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A special pressure head for applying sealing strips, characterized in that, It includes a mounting base (2), a guide frame (3), and a rolling wheel (4) driven by a rolling motor; The mounting base (2) has a clamping channel (9) inside for the adhesive sealing strip (1) to pass through; The guide frame (3) is located on the outlet side of the clamping channel (9). The guide frame (3) has a guide channel (10) inside for the adhesive sealing strip (1) to pass through. The guide frame (3) is installed on the side wall of the mounting base (2). The guide channel (10) is connected to the clamping channel (9). The guide channel (10) is provided with a guide wheel (5), the guide wheel (5) is arranged along the extension direction of the guide channel (10), and the guide wheel (5) is provided with a first limiting groove (6) for limiting the side wall of the adhesive tape (7) of the adhesive sealing strip (1). The roller (4) is located on the outlet side of the guide channel (10). The roller (4) is provided with a second limiting groove (8) for limiting the side wall of the adhesive sealing strip (1). The bottom of the second limiting groove (8) matches the outline of the adhesive sealing strip (1). The clamping channel (9) is configured to initially shape and clamp the adhesive sealing strip, so that the adhesive sealing strip enters the guide channel (10) in the guide frame (3) in a straight state; The first limiting groove (6) is configured to restrict the adhesive sealing strip from moving along the axial direction of the guide wheel (5) during the discharge process by utilizing the side wall; The second limiting groove (8) is configured to restrict the movement of the adhesive seal relative to the rolling path by means of the sidewall on the outlet side of the guide channel (10), and to uniformly transmit the clamping force to the adhesive seal by means of the bottom of the second limiting groove (8).

2. The special pressure head for applying the sealing strip according to claim 1, characterized in that, A baffle (41) is provided on one side of the rolling roller (4), and the baffle (41) is embedded in the end of the rolling roller (4).

3. The special pressure head for applying the sealing strip according to claim 1, characterized in that, The mounting base (2) is a split structure. The mounting base (2) includes a base (21), a left side plate (22) and a right side plate (23). The left side plate (22) and the right side plate (23) are mounted on the base (21) by fasteners. The clamping channel (9) passes through the left side plate (22) and the right side plate (23). There is a cutting groove (24) between the left side plate (22) and the right side plate (23). The cutting groove (24) is perpendicular to the clamping channel (9).

4. The special pressure head for applying the sealing strip according to claim 3, characterized in that, The cutting groove (24) is provided with a pad (25) for supporting the adhesive sealing strip (1). The pad (25) is mounted on the base (21) and has a groove (251) for embedding the cutting blade.

5. The special pressure head for applying the sealing strip according to claim 3, characterized in that, A limiting plate (26) is provided on one side of the cutting groove (24). The limiting plate (26) is arranged parallel to the clamping channel (9). A slot (261) is provided on the limiting plate (26). The slot (261) is perpendicular to the clamping channel (9).

6. The special pressure head for applying the sealing strip according to claim 1, characterized in that, The top of the mounting base (2) is provided with a window (27).

7. The special pressure head for applying the sealing strip according to claim 1, characterized in that, The guide wheel (5) is an I-beam wheel, which is connected to the inner wall of the guide channel (10) via a rotating shaft.

8. The special pressure head for applying the sealing strip according to claim 1, characterized in that, The bottom of the second limiting groove (8) is inverted U-shaped.

9. The rolling method for applying a special pressure head to a sealing strip according to any one of claims 1-8, characterized in that, include: During the guiding and discharging stage, the adhesive sealing strip (1) passes through the clamping channel (9) of the mounting base (2) and enters the guiding channel (10) in the guide frame (3). The adhesive tape (7) of the adhesive sealing strip (1) is embedded in the first limiting groove (6) on the guide wheel (5). Under the conveying of the feeding unit, the adhesive sealing strip (1) continuously extends out from the outlet of the guiding channel (10). During the rolling and limiting stage, the rolling roller (4) engages the adhesive sealing strip (1) in the second limiting groove (8) at the exit of the guide channel (10). The rolling unit applies a uniform pressing force to the adhesive sealing strip (1) through the rolling roller (4).

10. The rolling method for applying a special pressure head to a sealing strip according to claim 9, characterized in that, After the rolling limit stage, there is also a step of cutting the adhesive sealing strip (1). The cutting knife enters the clamping channel (9) through the cutting groove (24) in the mounting base (2) and cuts the adhesive sealing strip (1).

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