Dynamic sealing mechanism in copper-clad plate production line

Abstract

A dynamic sealing mechanism in a copper-clad plate production line comprises a drying oven, an airtight box and a cooling box are sequentially connected to the upper portion of the drying oven, an airtight box cloth guiding cylinder is installed above the airtight box, a pipe opening of the airtight box cloth guiding cylinder is located below an inlet of the cooling box, and an expansion telescopic joint is arranged on the outer side of the airtight box cloth guiding cylinder. The upper end of the expansion telescopic joint is connected with an upper extending support, the upper extending support and the cooling box are sealed, the lower end of the expansion telescopic joint is connected with a lower extending support, the periphery of the airtight box cloth guiding cylinder is connected with a supporting plate, the lower extending support and the supporting plate are connected in a sealed mode, and the inner side of the upper extending support is connected with a lining support. Cylinder sealing filler is arranged between the lining support and the airtight box cloth guiding cylinder, connecting supports are connected to the outer sides of the upper extending support and the lower extending support, and a screw rod is arranged between the connecting supports in a penetrating mode. According to the utility model, the expansion expansion joint wraps the cloth guiding cylinder for sealing, and during maintenance, the expansion expansion joint and the cloth guiding cylinder are detached together, so that a new sealing filler is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of copper clad laminate production and processing technology, specifically to a dynamic sealing mechanism in a copper clad laminate production line. Background Technology

[0002] Copper-clad laminate (CCL) is a sheet material made by impregnating electronic fiberglass cloth or other reinforcing materials with resin, covering one or both sides with copper foil, and then hot-pressing it. It is widely used in industries such as communications, computers, aerospace, and aviation. However, during the drying process of fiberglass cloth and other substrates in a sealed glue chamber, a large amount of waste gas containing volatile substances is generated. If the drying system is not properly sealed, waste gas leakage will occur, and not all waste gas can be sent to the waste gas treatment furnace. The leaked waste gas will pollute the workshop environment and cause harm to the operators.

[0003] The drying process for the impregnated substrate is as follows: First, it enters the upward drying oven, then passes through the airtight box and its top feed tube into the upward cooling box; the fiberglass cloth in the upward cooling box enters the downward cooling box through the turning box, then passes through the downward airtight box and its feed tube to reach the downward drying oven for further drying and cooling, completing the drying and cooling process; generally, the sealing effect of each component unit is relatively good and can meet the usage requirements, but leakage often occurs at the joints; especially the combination of the drying oven and the airtight box, due to thermal expansion during use, will have a contraction of about 15-30mm, which cannot be sealed by methods such as gaskets or sealants. Figure 3 As shown, to solve this problem, an extended fabric guide tube is usually inserted into the cooling box fixed on the platform. A gap of 15-20mm is left between the extended fabric guide tube and the inner wall of the cooling box inlet to fill the sealing packing and achieve a sealing effect. However, the packing must be replaced frequently due to compaction and aging. Since the extended fabric guide tube is inserted into the cooling box, it is inconvenient to disassemble, making it difficult to replace the packing. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a dynamic sealing mechanism in a copper clad laminate production line, addressing the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A dynamic sealing mechanism in a copper clad laminate production line includes an oven, with an airtight box and a cooling box connected sequentially above the oven. A steering box is connected above the cooling box. An airtight box feed tube is installed above the airtight box, with its inlet located below the inlet of the cooling box. An expansion joint is provided on the outside of the airtight box feed tube, enclosing it. An upper extension bracket is connected to the upper end of the expansion joint, sealing it with the cooling box. A lower extension bracket is connected to the lower end of the expansion joint. A support plate is connected around the lower perimeter of the airtight box feed tube, sealing the lower extension bracket to the support plate. An inner liner bracket is connected to the inside of the upper extension bracket, with a tube sealing filler placed between the inner liner bracket and the inlet of the airtight box feed tube. Connecting brackets are connected to the outside of the upper and lower extension brackets, with a screw threaded between them and locked by a nut.

[0007] Furthermore, a sealing filler is provided at the inlet of the cooling box.

[0008] Furthermore, the expansion joint is made of stainless steel and has a wavy cross-section.

[0009] Furthermore, an installation plate is provided around the bottom perimeter of the fabric inlet tube of the airtight box, and the installation plate is sealed to the airtight box.

[0010] Furthermore, the upper extension bracket and the cooling box, the lower extension bracket and the support plate, and the mounting plate and the airtight box are all sealed with ceramic sealing strips.

[0011] Compared with the prior art, the dynamic sealing mechanism in the copper clad laminate production line of this utility model shortens the feed tube and seals it by wrapping the feed tube with an expansion joint. During maintenance, the expansion joint and the feed tube can be disassembled together, making it easy to replace the new sealing filler. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0014] Figure 3 This is a schematic diagram of the original connection between the fabric feeding tube and the cooling box;

[0015] Among them, 1. Oven, 2. Airtight box, 3. Cooling box, 4. Turning box, 5. Airtight box fabric guide tube, 6. Mounting plate, 7. Sealing packing, 8. Expansion joint, 9. Upper extension bracket, 10. Lower extension bracket, 11. Support plate, 12. Inner lining bracket, 13. Cylinder sealing packing, 14. Connecting bracket, 15. Screw. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0017] like Figure 1 and Figure 2 As shown, a dynamic sealing mechanism in a copper clad laminate production line includes an oven 1, with an airtight box 2 and a cooling box 3 connected sequentially above the oven 1. A turning box 4 is connected above the cooling box 3, connecting the upper and lower cooling boxes. An airtight box guide tube 5 is installed above the airtight box 2, with its opening below the inlet of the cooling box 3. In this embodiment, an mounting plate 6 is provided around the bottom of the airtight box guide tube 5, which is connected to the airtight box 2 and sealed by a ceramic sealing strip. A sealing filler 7 is provided at the inlet of the cooling box 3. Since the opening of the airtight box guide tube 5 is below the inlet of the cooling box 3, the airtight box guide tube 5, after thermal expansion and elongation, extends into the cooling box 3 and seals with the sealing filler 7.

[0018] An expansion joint 8 is provided on the outside of the airtight box fabric guide tube 5, which wraps around the airtight box fabric guide tube 5. The upper end of the expansion joint 8 is connected to an upper extension bracket 9, which is sealed to the cooling box 3. The lower end of the expansion joint 8 is connected to a lower extension bracket 10. A support plate 11 is connected to the lower periphery of the airtight box fabric guide tube 5, and the lower extension bracket 10 is sealed to the support plate 11. The upper extension bracket 9 and the cooling box 3, as well as the lower extension bracket 10 and the support plate 11, are also sealed with ceramic sealing strips.

[0019] The inner side of the upper extension bracket 9 is connected to the inner lining bracket 12. A cylinder sealing packing 13 is provided between the inner lining bracket 12 and the opening of the airtight box fabric inlet tube 5. The inner lining bracket 12 supports the cylinder sealing packing 13. The cylinder sealing packing 13 and the ceramic sealing strip are used to prevent dye from entering the expansion joint 8 and the leakage of waste gas in the airtight box fabric inlet tube 5.

[0020] In this embodiment, the expansion joint 8 is made of stainless steel and has a wavy cross-section. Because the stainless steel expansion joint 8 has good rigidity, it will not easily deform. In order to facilitate the disassembly of the airtight box fabric guide tube 5 and the replacement of the internal sealing packing 7, the upper extension bracket 9 and the lower extension bracket 10 are connected to the outer side of the connecting bracket 14. A screw 15 is inserted between the connecting brackets 14 and the screw 15 is locked by a nut. When disassembling and replacing, loosen the screw on the upper extension bracket 9, rotate the screw 15, and compress it to make the expansion joint 8 contract. Remove the screw on the mounting plate 6, and the expansion joint 8 and the airtight box fabric guide tube 5 can be removed together to replace the new sealing packing 7.

[0021] This utility model is not limited to the embodiments described. Those skilled in the art can still make some modifications or changes without departing from the spirit and scope of this utility model. Therefore, the scope of protection of this utility model shall be determined by the scope defined in the claims.

Claims

1. A dynamic sealing mechanism in a copper clad laminate production line, comprising an oven, an airtight chamber and a cooling chamber connected sequentially above the oven, and a steering box connected above the cooling chamber, characterized in that: An airtight box fabric guide tube is installed above the airtight box, with its opening located below the cooling box inlet. An expansion joint is provided on the outside of the airtight box fabric guide tube, enclosing it. An upper extension bracket is connected to the upper end of the expansion joint, which is sealed to the cooling box. A lower extension bracket is connected to the lower end of the expansion joint. A support plate is connected to the lower periphery of the airtight box fabric guide tube, and the lower extension bracket is sealed to the support plate. An inner lining bracket is connected to the inside of the upper extension bracket, and a cylinder sealing filler is provided between the inner lining bracket and the opening of the airtight box fabric guide tube. A connecting bracket is connected to the outside of the upper and lower extension brackets, and a screw is threaded between the connecting brackets and locked by a nut.

2. The dynamic sealing mechanism in a copper clad laminate production line according to claim 1, characterized in that: The inlet of the cooling box is equipped with sealing packing.

3. The dynamic sealing mechanism in a copper clad laminate production line according to claim 1, characterized in that: The expansion joint is made of stainless steel and has a wavy cross-section.

4. The dynamic sealing mechanism in a copper clad laminate production line according to claim 1, characterized in that: An installation plate is provided around the bottom perimeter of the fabric guide tube of the airtight box, and the installation plate is sealed to the airtight box.

5. The dynamic sealing mechanism in a copper-clad laminate production line according to claim 4, characterized in that: The upper extension bracket and the cooling box, the lower extension bracket and the support plate, and the mounting plate and the airtight box are all sealed with ceramic sealing strips.

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