Built-in energy-saving air duct of PTFE (Polytetrafluoroethylene) high-temperature adhesive tape coating equipment

Abstract

The utility model relates to a built-in energy-saving air duct of PTFE (Polytetrafluoroethylene) high-temperature adhesive tape coating equipment, which comprises a coating machine and a control cabinet, the coating machine comprises an unwinding drum, a winding drum, a coating device and a drying device, the coating device is provided with a rubber sleeve and a PTFE rubber groove, and the rubber sleeve is arranged above the PTFE rubber groove; the drying device is provided with a heater, the heater comprises a plurality of electric heating pipes, an adhesive tape is arranged below the electric heating pipes, and a grid conveying belt is arranged below the adhesive tape; and a box body is arranged above the heater, and an air outlet pipe is arranged on the box body. The air inlet channels are formed in the two sides of the adhesive tape in the box body, the waste gas channel is arranged above the electric heating pipe, and the air inlet channels are communicated with the waste gas channel and the air outlet pipe, so that flowing of drying hot air and heating of the surface of the adhesive tape are more uniform, and the phenomenon that the surface of the adhesive tape is locally overheated can be effectively avoided. According to the utility model, the heat distribution on the surface of the adhesive tape is more uniform, the product quality is improved, the loss of drying heat is reduced, and a better energy-saving effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tape coating machines, in particular to an internal energy-saving air duct of a PTFE high-temperature tape coating device. Background Art

[0002] The PTFE high-temperature tape is made of high-strength glass fiber as the base cloth, which is repeatedly impregnated, coated with polytetrafluoroethylene emulsion and then sintered. Due to the smooth surface of this product, it has good anti-adhesion, excellent electrical properties, heat resistance, surface non-adhesion, corrosion resistance and waterproofness, and still has very good holding properties and dimensional stability under high and low temperature conditions. It is a high-performance and multi-purpose high-temperature resistant tape.

[0003] The PTFE high-temperature tape is widely used in packaging fields such as food, medicine and plastic bags. It can be directly attached to various large flat surfaces and regular curved surfaces, can be used repeatedly and is easy to replace; it is also suitable for the optoelectronic industry, wind turbine blades and new energy fields, and requires surface treatment with process requirements such as anti-adhesion, corrosion resistance, high temperature resistance and demoulding during the production process.

[0004] The PTFE high-temperature tape is generally processed and manufactured by a tape coating production line. During the production process of the tape, hot air is required to dry the coated tape. Existing high-temperature tape coating devices usually include a box body, a unwind reel, guide rollers, a wind-up reel, a coating device, a drying device and a driving component, and the drying operation of the tape is completed by the drying device.

[0005] At present, the tape coating production line is usually installed in a production workshop with a large space. When the coated tape passes through the drying device, since the space above the tape is an open space, the hot air generated by the drying device flows disorderly, and the heat acting on the tape surface is uneven, and local overheating will occur, resulting in the inactivation of PTFE on the tape surface at that place, making the local part of the tape finished product brittle or having too low adhesion, thus reducing the product quality. Content of the Utility Model

[0006] The purpose of the utility model is to provide an internal energy-saving air duct of a PTFE high-temperature tape coating device, which not only makes the heat distribution on the tape surface more uniform, improves the product quality, but also can reduce the heat loss of the drying device and achieve the effect of energy saving.

[0007] The purpose of the utility model is achieved by adopting the following technical solutions:

[0008] An internal energy-saving air duct for a PTFE high-temperature tape coating equipment, comprising a coating machine and a control cabinet. The coating machine includes a box body, a unwind reel, a guide roller, a wind-up reel, a coating device, a drying device and a driving assembly. The coating device is provided with a glue cylinder and a PTFE glue tank, and the glue cylinder is arranged above the PTFE glue tank. The drying device is provided with a heater, and the heater includes a plurality of electric heating tubes arranged in parallel. Below the electric heating tubes is the tape, and below the tape is a PTFE heat-resistant mesh conveyor belt.

[0009] Above the heater is provided with a box body. On the box body is provided an air outlet duct, and on both sides of the box body are provided air inlet channels, and the air inlet channels are arranged between the two ends of the tape and the side wall of the box body.

[0010] The air inlet channels are communicated with the air outlet duct.

[0011] As a preferred technical solution of the present invention, an exhaust gas channel is provided in the box body. The exhaust gas channel is communicated with the air outlet duct, and both ends of the exhaust gas channel are communicated with the air inlet channels.

[0012] As a preferred technical solution of the present invention, the exhaust gas channel is set in a cuboid shape, and the middle of the exhaust gas channel is connected to the inlet of the air outlet duct.

[0013] As a preferred technical solution of the present invention, the length of the exhaust gas channel is 1200 - 1500 millimeters, the width is 230 - 250 millimeters, and the height is 120 - 150 millimeters.

[0014] As a preferred technical solution of the present invention, the box body is set in a cuboid shape, and the air outlet duct of the box body is set in a cylindrical or cuboid shape.

[0015] As a preferred technical solution of the present invention, the air outlet duct is connected to a waste heat recovery device.

[0016] As a preferred technical solution of the present invention, the box body and the air outlet duct are made of stainless steel.

[0017] The beneficial effects of the present invention: Compared with the prior art, above the coating machine of the present invention is provided with a box body. On both sides of the tape in the box body form air inlet channels, and above the electric heating tubes is provided an exhaust gas channel. The air inlet channels are communicated with the exhaust gas channel and the air outlet duct, making the flow of hot air in the drying device and the heating of the tape surface more uniform, and effectively avoiding the phenomenon of local overheating on the tape surface.

[0018] The present invention not only makes the heat distribution on the tape surface more uniform, thereby improving the product quality and avoiding the phenomenon of inconsistent stickiness on the tape surface, but also can reduce the heat loss of the drying device, achieving a good energy-saving effect. Description of the Drawings

[0019] Figure 1 It is a structural schematic diagram of the present utility model.

[0020] In the figure: 1. Box body, 2. Guide roller, 3. Air outlet pipe, 4. Electric heating pipe, 5. Mesh conveyor belt, 6. Tape, 7. Exhaust gas passage. Specific embodiments

[0021] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] As Figure 1 shown, an in-built energy-saving air duct for a PTFE high-temperature tape coating device includes a coating machine and a control cabinet. The coating machine includes a box body 1, a pay-off reel, a guide roller 2, a take-up reel, a coating device, a drying device, and a driving assembly. The coating device is provided with a glue barrel and a PTFE glue tank, and the glue barrel is arranged above the PTFE glue tank; the drying device is provided with a heater, and the heater includes a plurality of electric heating pipes 4 arranged in parallel. Below the electric heating pipes 4 is a tape 6, and below the tape 6 is provided with a PTFE heat-resistant mesh conveyor belt 5; above the heater is provided with a box body 1, on the box body 1 is provided an air outlet pipe 3, and on both sides of the box body 1 are provided air inlet channels, and the air inlet channels are arranged between the two ends of the tape 6 and the side walls of the box body 1; the air inlet channels are communicated with the air outlet pipe 3.

[0023] In this embodiment, an exhaust gas passage 7 is provided in the box body 1. The exhaust gas passage 7 is communicated with the air outlet pipe 3, and both ends of the exhaust gas passage 7 are communicated with the air inlet channels. The exhaust gas passage 7 is set in a cuboid shape, and the middle of the exhaust gas passage 7 is connected to the inlet of the air outlet pipe 3.

[0024] The length of the exhaust gas passage 7 is 1200 - 1500 millimeters, the width is 230 - 250 millimeters, and the height is 120 - 150 millimeters. The box body 1 is set in a cuboid shape, and the air outlet pipe 3 of the box body 1 is set in a cylindrical or cuboid shape; the box body 1 and the air outlet pipe 3 are made of stainless steel. In this embodiment, the air outlet pipe 3 is also connected to a waste heat recovery device, thereby further increasing the energy-saving effect.

[0025] The above embodiments are only limited to explaining the concept and technical features of the present utility model, and their purpose is to enable those skilled in the art to understand the technical solutions and implementation manners of the utility model, and cannot limit the protection scope of the present utility model accordingly. Any equivalent substitution or equivalent change made according to the technical solutions of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A PTFE high-temperature tape coating equipment with a built-in energy-saving air duct, comprising a coating machine and a control cabinet, the coating machine comprising a box, a reel, a guide roller, a reel, a coating device, a drying device and a driving assembly, the coating device is provided with a rubber cylinder and a PTFE rubber tank, the rubber cylinder is arranged above the PTFE rubber tank; the drying device is provided with a heater, characterized in that: The heater comprises a plurality of electric heating tubes arranged in parallel with each other, a tape is disposed below the electric heating tubes, and a PTFE temperature-resistant mesh conveyor belt is disposed below the tape; A box is provided above the heater, an air outlet pipe is provided on the box, air inlet channels are provided on both sides of the box, and the air inlet channels are provided between the two ends of the tape and the side walls of the box; The air inlet channel is communicated with the air outlet pipe.

2. The built-in energy-saving air duct of the PTFE high-temperature tape coating equipment according to claim 1 is characterized in that: An exhaust gas channel is provided in the box body, the exhaust gas channel is communicated with the air outlet pipe, and both ends of the exhaust gas channel are communicated with the air inlet channel.

3. The built-in energy-saving air duct of the PTFE high-temperature tape coating equipment according to claim 2 is characterized in that: The exhaust gas channel is configured in a rectangular parallelepiped shape, and the middle of the exhaust gas channel is connected to the inlet of the air outlet pipe.

4. The built-in energy-saving air duct of the PTFE high-temperature tape coating equipment according to claim 3 is characterized by: The exhaust gas channel has a length of 1200-1500 mm, a width of 230-250 mm, and a height of 120-150 mm.

5. The built-in energy-saving air duct of the PTFE high-temperature tape coating equipment according to claim 1 is characterized by: The box body is set in a rectangular parallelepiped shape, and the air outlet pipe of the box body is set in a cylindrical or rectangular parallelepiped shape.

6. The built-in energy-saving air duct of the PTFE high-temperature tape coating equipment according to claim 5 is characterized by: The air outlet pipe is connected to the waste heat recovery device.

7. The built-in energy-saving air duct of the PTFE high-temperature tape coating equipment according to claim 1 is characterized by: The box body and the air outlet pipe are made of stainless steel.

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