A roll-to-roll cloth covering and pressure setting mechanism for shielding and sealing extruded strips

Abstract

The utility model relates to a kind of shielding sealing extrusion strip's roll-to-roll cloth and fixed pressure laminating mechanism, including bottom plate, the top of the bottom plate is fixedly installed with extruder, the discharge of the extruder is fixedly installed with extrusion nozzle, the right side of the extruder is provided with cloth supply assembly, the top of the bottom plate is fixedly installed with placing seat, the inner wall of the placing seat is fixedly installed with conveyor belt, the top of the bottom plate is provided with fixed pressure component.This shielding sealing extrusion strip's roll-to-roll cloth and fixed pressure laminating mechanism, by setting fixed pressure component and conveyor belt etc., silica gel strip and cloth superimposed object are transported to between upper and lower compression rollers by conveyor belt, electric push rod drives upper compression roller to move down extrusion laminating by T-shaped rod and concave frame, pressure sensor real-time feedback pressure, device internal control unit dynamically fine tunes upper compression roller position, ensure that pressure is uniform, lower compression roller built-in heating tube is synchronous heating, soften silica gel strip to promote molecular combination, improve laminating firmness.

Description

Technical Field

[0001] This utility model relates to the field of shielding sealing strip preparation technology, specifically to a roll-to-roll covering and constant pressure bonding mechanism for a shielding sealing extrusion strip. Background Technology

[0002] In fields such as electronic equipment, communication equipment, and aerospace, shielding sealing strips serve as crucial functional components for electromagnetic shielding and sealing protection. Their product quality directly impacts the reliability and stability of the equipment. During the production of shielding sealing extrusion strips, the roll-to-roll covering and lamination processes are key steps in ensuring product performance.

[0003] Currently, existing technologies for bonding and covering extruded shielding strips with fabric have several problems. Firstly, traditional pressure control methods cannot precisely adjust the pressure according to the thickness of the shielding strip during bonding, making it difficult to ensure uniform bonding pressure. This can easily lead to localized underpressure or overpressure, resulting in insufficient bonding between the silicone strip and the covering fabric, thus reducing the sealing performance and shielding effect of the extruded shielding strip. Secondly, most bonding processes lack effective heating-assisted shaping methods, resulting in insufficient molecular bonding between the silicone strip and the covering fabric, poor product shaping, and problems such as delamination and detachment during use. Therefore, a roll-to-roll covering and constant-pressure bonding mechanism for shielding sealing extruded strips is proposed to solve these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a roll-to-roll covering and constant-pressure bonding mechanism for shielding and sealing extruded strips that enables stable material conveying, constant-pressure bonding, and effective auxiliary shaping.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roll-to-roll covering and constant pressure bonding mechanism for a shielding and sealing extrusion strip, comprising a base plate, an extruder fixedly mounted on the top of the base plate, an extrusion nozzle fixedly mounted at the discharge end of the extruder, a covering supply assembly provided on the right side of the extruder, a placement seat fixedly mounted on the top of the base plate, a conveyor belt fixedly mounted on the inner wall of the placement seat, and a constant pressure assembly provided on the top of the base plate;

[0006] The fabric supply assembly includes two first upright plates, both of which are fixedly installed on the top of the base plate. A support shaft is rotatably installed between the two upright plates. A fabric feeding roller is fixedly installed on the surface of the support shaft. A fabric feeding motor and two guide motors are fixedly installed on the surface of one of the upright plates.

[0007] The constant pressure assembly includes a mounting frame, which is fixedly mounted on the top of the base plate. A functional motor is fixedly mounted on the front side of the mounting frame, and a lower pressure roller is fixedly mounted on the output end of the functional motor. A heating tube is fixedly mounted inside the lower pressure roller. Two connecting frames are fixedly mounted on the top surface of the mounting frame. An electric push rod is fixedly mounted on the top of each of the two connecting frames. A T-shaped rod is fixedly mounted on the bottom of each of the two electric push rods. A concave frame is fixedly mounted on the bottom of each of the two T-shaped rods. An upper pressure roller is rotatably mounted between the left and right side walls of the concave frame. Two second vertical plates are fixedly mounted on the top of the base plate, and two cooling rollers are arranged between the two second vertical plates.

[0008] Furthermore, a number of support feet are fixedly installed on the bottom of the base plate.

[0009] Furthermore, two connecting shafts are rotatably installed between the two upright plates, and guide rollers are fixedly installed on the surface of each of the two connecting shafts. The output end of the guide motor is fixedly connected to the connecting shaft, and the output end of the fabric feeding motor is fixedly connected to the fabric feeding roller.

[0010] Furthermore, the lower pressure roller is rotatably mounted on the inner wall of the mounting frame, and the T-shaped rod is slidably mounted on the inner wall of the connecting frame.

[0011] Furthermore, bearing seats are fixedly installed on both the left and right side walls of the concave frame, and pressure sensors are fixedly installed on the surfaces of the two bearing seats. The two bearing seats are rotatably installed with the upper pressure roller via bearings.

[0012] Furthermore, connecting rods are rotatably mounted on opposite sides of the two second vertical plates, a cooling roller is fixedly mounted between each pair of connecting rods, and gears are fixedly mounted on the portions of the two connecting rods extending to the outside of one of the vertical plates. The two gears mesh with each other, and a conveying motor is fixedly mounted on the surface of one of the vertical plates. The output end of the conveying motor is fixedly connected to one of the connecting rods.

[0013] Furthermore, two third upright plates are fixedly installed on the top of the base plate, and a winding roller is rotatably installed between the two third upright plates. A winding motor is fixedly installed on the surface of one of the third upright plates, and the output end of the winding motor is fixedly connected to the winding roller.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The shielding and sealing extrusion strip's roll-to-roll covering and constant-pressure bonding mechanism, through the setting of constant-pressure components and conveyor belts, transports the silicone strip and the covered fabric composite to the space between upper and lower pressure rollers via the conveyor belt. An electric push rod drives the upper pressure roller to move down and press and bond through a T-shaped rod and a concave frame. A pressure sensor provides real-time pressure feedback, and the internal control unit dynamically fine-tunes the position of the upper pressure roller to ensure uniform pressure. The lower pressure roller has a built-in heating tube that heats synchronously, softening the silicone strip to promote molecular bonding and improve bonding strength. After hot pressing, the material is transferred to a cooling roller for shaping. Through the above settings, dynamic pressure adjustment and heating are combined to significantly improve bonding strength. Furthermore, the immediate shaping by the cooling roller prevents the material from springing back and shifting after hot pressing, ensuring product dimensional accuracy and appearance integrity. Attached Figure Description

[0016] Figure 1 This is a partial perspective view of the present invention;

[0017] Figure 2 This is a front view of the present utility model;

[0018] Figure 3 This is a side view of the mounting bracket and its connecting structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the second vertical plate and its connection structure of the present invention;

[0020] Figure 5 This is a schematic diagram of the third upright plate and its connection structure of the present invention.

[0021] In the diagram: 1. Base plate; 2. Support foot; 3. Extruder; 4. Extrusion nozzle; 5. Fabric supply assembly; 501. First vertical plate; 502. Support shaft; 503. Fabric feeding roller; 504. Fabric feeding motor; 505. Connecting shaft; 506. Guide roller; 507. Guide motor; 6. Placement seat; 7. Conveyor belt; 8. Control panel; 9. Pressure regulating assembly; 901. Mounting frame; 902. Functional motor; 903. Lower pressure roller; 904. Heating tube; 905. Connecting frame; 906. Electric push rod; 907. T-shaped rod; 908. Concave frame; 909. Bearing seat; 910. Pressure sensor; 911. Connecting rod; 912. Cooling roller; 10. Third vertical plate; 11. Rewinding roller; 12. Rewinding motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 The shielding and sealing extrusion strip roll-to-roll covering and constant pressure bonding mechanism in this embodiment includes a base plate 1, an extruder 3 fixedly installed on the top of the base plate 1, an extrusion nozzle 4 fixedly installed at the discharge end of the extruder 3, a covering supply assembly 5 provided on the right side of the extruder 3, a placement seat 6 fixedly installed on the top of the base plate 1, a conveyor belt 7 fixedly installed on the inner wall of the placement seat 6, and a constant pressure assembly 9 provided on the top of the base plate 1.

[0024] The fabric supply assembly 5 includes two first upright plates 501, both of which are fixedly installed on the top of the base plate 1. A support shaft 502 is rotatably installed between the two upright plates. A fabric feeding roller 503 is fixedly installed on the surface of the support shaft 502. A fabric feeding motor 504 and two guide motors 507 are fixedly installed on the surface of one of the upright plates.

[0025] The constant pressure assembly 9 includes a mounting frame 901, which is fixedly mounted on the top of the base plate 1. A functional motor 902 is fixedly mounted on the front side of the mounting frame 901. A lower pressure roller 903 is fixedly mounted on the output end of the functional motor 902. A heating tube 904 is fixedly mounted inside the lower pressure roller 903. Two connecting frames 905 are fixedly mounted on the top surface of the mounting frame 901. An electric push rod 906 is fixedly mounted on the top of each of the two connecting frames 905. A T-shaped rod 907 is fixedly mounted on the bottom of each of the two electric push rods 906. A concave frame 908 is fixedly mounted on the bottom of each of the two T-shaped rods 907. An upper pressure roller is rotatably mounted between the left and right side walls of the concave frame 908. Two second vertical plates are fixedly mounted on the top of the base plate 1. Two cooling rollers 912 are arranged between the two second vertical plates.

[0026] like Figure 1 As shown, the stability of the device is improved by setting support feet 2, and the control panel 8 is a component of the existing extrusion equipment, the function of which will not be elaborated.

[0027] like Figure 1 and Figure 2 As shown, by setting up a fabric supply assembly 5, the fabric supply assembly 5 includes a first vertical plate 501, a support shaft 502, a fabric feeding roller 503, a connecting shaft 505, a guide roller 506, a fabric feeding motor 504, and a guide motor 507, etc. In use, by starting the fabric feeding motor 504 and the guide motor 507, the fabric feeding motor 504 drives the support shaft 502 and the fabric feeding roller 503 to rotate, thereby putting down the fabric. And through the cooperation of the guide motor 507, the connecting shaft 505, and the guide roller 506, the fabric is conveyed downwards, thereby being conveyed to the top of the silicone strip. Then, the silicone strip comes out from the extrusion nozzle 4 under the operation of the extruder 3, and then the silicone strip and the fabric are overlapped.

[0028] like Figure 2 As shown, by setting a second vertical plate, connecting rod 911, gears, a conveyor motor, and cooling roller 912, etc., when in use, the conveyor motor is started, and the conveyor motor drives one of the connecting rods 911 to rotate. The connecting rod 911 drives one of the cooling rollers 912 to rotate. Then, through the meshing of two gears, the other connecting rod 911 and cooling roller 912 can be driven to rotate in the opposite direction. Thus, through the opposite rotation of the two cooling rollers 912, the linear velocity directions of the two rollers are consistent at the material contact point. The material is clamped and moved forward by the friction between the roller surface and the material being adhered to, and pressure is applied to complete the cooling.

[0029] like Figure 1 and Figure 5 As shown, by setting up a winding motor 12 and a third vertical plate 10, the winding motor 12 is started, and the winding roller 11 is driven to rotate to complete the winding of the material.

[0030] When implementing this procedure, please follow these steps:

[0031] 1) The silicone strip and the fabric overlap material are conveyed by the conveyor belt 7 and accurately delivered between the upper pressure roller and the lower pressure roller 903 of the pressure fixing component 9 to prepare for the subsequent bonding process.

[0032] 2) Then start the electric push rod 906, which drives the upper pressure roller to move downward through the T-shaped rod and the concave frame 908 to squeeze and bond the stacked materials. During the process, the pressure sensor 910 on the bearing seat 909 monitors the bonding pressure in real time and feeds it back to the control unit. The system dynamically adjusts the position of the upper pressure roller according to the feedback - when the pressure is lower than the preset value, it is slightly adjusted downward, and when it is higher than the preset value, it is slightly adjusted upward to ensure uniform pressure throughout the process and avoid local leakage or overpressure.

[0033] 3) Heat is released from the heating tube 904 built into the lower pressure roller 903. While applying pressure for bonding, the heat is transferred to the overlapping area of ​​the silicone strip and the covering fabric, which makes the silicone strip slightly soft and promotes a tighter molecular bond between the covering fabric and the silicone strip, further improving the bonding firmness.

[0034] 4) The material after hot pressing is conveyed to the cooling roller 912 for cooling treatment to achieve shaping, effectively preventing the material from shifting due to springback after hot pressing, and ensuring the dimensional accuracy and appearance integrity of the product.

[0035] In summary, the roll-to-roll covering and constant-pressure bonding mechanism of the shielding and sealing extrusion strip, through the setting of constant-pressure component 9 and conveyor belt 7, etc., the silicone strip and the covering fabric composite are conveyed to the upper and lower pressure rollers 903 via conveyor belt 7. The electric push rod 906 drives the upper pressure roller to move down and press and bond through T-shaped rod 907 and concave frame 908. The pressure sensor 910 provides real-time pressure feedback. The internal control unit of the device dynamically fine-tunes the position of the upper pressure roller to ensure uniform pressure. The lower pressure roller 903 has a built-in heating tube 904 for synchronous heating, softening the silicone strip to promote molecular bonding and improve bonding firmness. After hot pressing, the material is conveyed to the cooling roller 912 for shaping. Through the above settings, the bonding firmness is greatly improved by dynamic pressure adjustment and heating synergy. Furthermore, the immediate shaping by the cooling roller 912 prevents the material from springing back and shifting after hot pressing, ensuring the dimensional accuracy and appearance integrity of the product.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roll-to-roll covering and constant-pressure bonding mechanism for a shielding and sealing extruded strip, comprising a base plate (1), characterized in that: An extruder (3) is fixedly installed on the top of the base plate (1), an extrusion nozzle (4) is fixedly installed at the discharge end of the extruder (3), a fabric supply assembly (5) is provided on the right side of the extruder (3), a placement seat (6) is fixedly installed on the top of the base plate (1), a conveyor belt (7) is fixedly installed on the inner wall of the placement seat (6), and a pressure regulating assembly (9) is provided on the top of the base plate (1). The fabric supply assembly (5) includes two first upright plates (501), both of which are fixedly installed on the top of the base plate (1). A support shaft (502) is rotatably installed between the two upright plates. A fabric feeding roller (503) is fixedly installed on the surface of the support shaft (502). A fabric feeding motor (504) and two guide motors (507) are fixedly installed on the surface of one of the upright plates. The constant pressure assembly (9) includes a mounting frame (901), which is fixedly mounted on the top of the base plate (1). A functional motor (902) is fixedly mounted on the front side of the mounting frame (901). A lower pressure roller (903) is fixedly mounted on the output end of the functional motor (902). A heating tube (904) is fixedly mounted inside the lower pressure roller (903). Two connecting frames (905) are fixedly mounted on the top surface of the mounting frame (901). An electric push rod (906) is fixedly mounted on the top of each of the two connecting frames (905). A T-shaped rod (907) is fixedly mounted on the bottom of each of the two electric push rods (906). A concave frame (908) is fixedly mounted on the bottom of each of the two T-shaped rods (907). An upper pressure roller is rotatably mounted between the left and right side walls of the concave frame (908). Two second vertical plates are fixedly mounted on the top of the base plate (1). Two cooling rollers (912) are arranged between the two second vertical plates.

2. The roll-to-roll covering and constant-pressure bonding mechanism for a shielding and sealing extruded strip according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly installed with a number of support feet (2), and the surface of the extruder (3) is fixedly installed with a control panel (8).

3. The roll-to-roll covering and constant-pressure bonding mechanism for a shielding and sealing extruded strip according to claim 1, characterized in that: Two connecting shafts (505) are rotatably installed between the two upright plates. Guide rollers (506) are fixedly installed on the surfaces of the two connecting shafts (505). The output end of the guide motor (507) is fixedly connected to the connecting shaft (505). The output end of the fabric feeding motor (504) is fixedly connected to the fabric feeding roller (503).

4. The roll-to-roll covering and constant-pressure bonding mechanism for a shielding and sealing extruded strip according to claim 1, characterized in that: The lower pressure roller (903) is rotatably mounted on the inner wall of the mounting frame (901), and the T-shaped rod (907) is slidably mounted on the inner wall of the connecting frame (905).

5. The roll-to-roll covering and constant-pressure bonding mechanism for a shielding and sealing extruded strip according to claim 1, characterized in that: Bearing seats (909) are fixedly installed on both the left and right side walls of the concave frame (908), and pressure sensors (910) are fixedly installed on the surfaces of the two bearing seats (909). The two bearing seats (909) are rotatably installed with the upper pressure roller through bearings.

6. The roll-to-roll covering and constant-pressure bonding mechanism for a shielding and sealing extruded strip according to claim 1, characterized in that: A connecting rod (911) is rotatably mounted on the opposite sides of the two second upright plates. A cooling roller (912) is fixedly mounted between each pair of connecting rods (911). Gears are fixedly mounted on the portions of the two connecting rods (911) extending to the outside of one of the upright plates. The two gears mesh with each other. A conveying motor is fixedly mounted on the surface of one of the upright plates. The output end of the conveying motor is fixedly connected to one of the connecting rods (911).

7. The roll-to-roll covering and constant-pressure bonding mechanism for a shielding and sealing extruded strip according to claim 1, characterized in that: Two third vertical plates (10) are fixedly installed on the top of the base plate (1). A winding roller (11) is rotatably installed between the two third vertical plates (10). A winding motor (12) is fixedly installed on the surface of one of the third vertical plates (10). The output end of the winding motor (12) is fixedly connected to the winding roller (11).

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