A polyurethane emulsion coated oven duct system

Abstract

This utility model provides a polyurethane emulsion coating oven air duct system, relating to the field of ovens. The system includes a workbench. From left to right, the top of the workbench is equipped with a traction roller, a pair of guardrails, and a heating chamber. The two guardrails are arranged symmetrically front to back. The heating chamber is connected to the right end of the guardrails. Two supports connect between the two guardrails, and multiple air chambers are installed on the supports. An air duct is connected to the end of the heating chamber, and a connecting pipe is connected to the outlet of the air duct. This polyurethane emulsion coating oven air duct system consists of a workbench, air chambers, and a heating chamber. Hot steam is first introduced into the heating chamber and then ejected from the air chamber. The air chamber serves as a preliminary heating method, providing initial preheating. The heating chamber contains a temperature-conducting belt, rollers, and air ducts. The temperature-conducting belt contacts the substrate surface to achieve hot pressing, realizing a secondary drying heating effect. This improves drying capacity, avoids uneven drying, and ensures thorough drying.

Description

Technical Field

[0001] This utility model relates to the field of oven technology, specifically to a polyurethane emulsion coated oven air duct system. Background Technology

[0002] Polyurethane emulsions, as a type of coating, are widely used in textiles, construction, aerospace, shipbuilding, transportation, medicine, electronics, and other fields. The coating process typically requires the use of a coating machine, which applies a layer of specific adhesive, coating, or ink to a roll of substrate, then dries and rewinds it.

[0003] The following drawbacks still exist in practical use:

[0004] Currently, the ovens on coating machines generally use electric heating, that is, electric heating wires are used to heat the air, and then the heated air is blown onto the surface of the substrate after the slurry is coated to dry the substrate. This type of electrically heated oven has low heating efficiency, high energy consumption, and uneven heat distribution inside the oven, which can easily lead to the problem of some parts of the substrate not being dried. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a polyurethane emulsion coated oven air duct system, which solves the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a polyurethane emulsion coating oven air duct system, including a workbench, the top of the workbench is provided with a traction roller, a pair of guardrails and a heating chamber from left to right, the two guardrails are arranged symmetrically front and back, the heating chamber is connected to the right end of the guardrails, two supports are connected between the two guardrails, multiple air chambers are installed on the supports, the end of the heating chamber is connected to an air intake channel, the air outlet end of the air intake channel is connected to a connecting pipe, and the connecting pipe is connected to the air chamber.

[0009] The heating chamber is equipped with a temperature-conducting belt, a roller, and an air duct. The air duct is located directly above the roller. The temperature-conducting belt is wrapped around the roller and the air duct. The roller and the air duct are connected by the temperature-conducting belt. The air inlet end of the air duct extends into the heating chamber.

[0010] The bottom of the air duct has a hole, and the end of the air duct extends to the outside of the heating chamber and is connected to a hot air conveying device.

[0011] Preferably, the temperature-conducting strip is provided with a slide rod, the slide rod body is slidably engaged with a drive slide block, the slide rod is parallel to the air duct, the bottom of the drive slide block is connected to an inclined electric push rod, and the lower end of the sponge block is connected to a sponge block.

[0012] Preferably, the air chamber has an air outlet at the bottom, and a fan is installed at the air outlet.

[0013] Preferably, the top of the guardrail has a slot, the end of the bracket is inserted into the slot, and the connecting pipes on the two brackets are arranged in an alternating pattern.

[0014] Preferably, the heating chamber has a connection interface at one end, and the air duct extends out of the heating chamber through the connection interface.

[0015] (III) Beneficial Effects

[0016] This invention provides a polyurethane emulsion coated oven air duct system. It has the following beneficial effects:

[0017] 1. This polyurethane emulsion coating oven air duct system consists of a worktable, an air chamber, and a heating chamber. Hot steam is first introduced into the heating chamber and then ejected from the air chamber. The air chamber serves as the initial heating method, providing preheating. The heating chamber is equipped with a temperature-conducting belt, rollers, and air ducts. The temperature-conducting belt contacts the substrate surface to achieve hot pressing, realizing a secondary drying heating effect. This improves drying capacity, avoids uneven drying, and ensures thorough drying. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a top view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the air chamber structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the temperature-conducting belt of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the heating chamber of this utility model.

[0023] In the diagram: 1 workbench, 11 traction roller, 2 guardrail, 21 slot, 3 bracket, 4 air chamber, 41 connecting pipe, 42 fan, 5 heating chamber, 51 interface, 6 temperature guide belt, 61 shaft roller, 62 air duct, 621 hole, 7 slide bar, 8 drive slide, 81 electric push rod, 82 sponge block, 9 air duct. Detailed Implementation

[0024] This utility model embodiment provides a polyurethane emulsion coated oven air duct system, such as Figure 1-5 As shown, the device includes a workbench 1. From left to right, the top of the workbench 1 is provided with a traction roller 11, a pair of guardrails 2 and a heating chamber 5. A torque electric shock is fixedly installed at the left end of the workbench, and the torque electric shock drive shaft is welded to the end of the traction roller 11.

[0025] Two guardrail panels 2 are arranged symmetrically front to back and fixedly installed on the workbench 1. The heating chamber 5 is fixedly installed on the right end of the guardrail panel 2. Two brackets 3 are provided between the two guardrail panels 2. Multiple air chambers 4 are fixedly installed on the brackets 3. The end of the heating chamber 5 is connected to the air intake channel 9. The air outlet end of the air intake channel 9 is connected to the connecting pipe 41, which is connected to the air chamber 4.

[0026] During operation, high-temperature hot steam is introduced into heating chamber 5, then sent into air chamber 4 through air intake channel 9, and finally ejected from the bottom of air chamber 4. Because the hot steam enters heating chamber 5 first and exits air chamber 4 last, the airflow temperature drops slightly when it exits air chamber 4. Air chamber 4 is used for preheating, while heating chamber 5 serves the purpose of final heating.

[0027] The heating chamber 5 is equipped with a temperature-conducting belt 6, a roller 61, and an air duct 62. The air duct 62 is located directly above the roller 61. The temperature-conducting belt 6 is sleeved over the roller 61 and the air duct 62. A motor is fixedly installed on the right end of the baffle plate 2, and the motor drive shaft is welded to the end of the roller 61. The temperature-conducting belt 6 enables the roller 61 and the air duct 62 to be connected. The air inlet end of the air intake channel 9 extends into the heating chamber 5.

[0028] The roller 61 drives the heat-conducting belt 6 to rotate, and the side of the heat-conducting belt 6 contacts the inner wall of the heating chamber 5 and the baffle plate 2, thereby forming a sealed space. Hot steam is continuously input into the heat-conducting belt 6, thereby pressing the hot steam into the air duct 9.

[0029] The bottom of the air duct 62 has a hole 621, and the end of the air duct 61 extends to the outside of the heating chamber 5 and is connected to a hot air conveying device. After the heat-conducting belt 6 is heated, it comes into contact with the substrate. The rotation of the heat-conducting belt 6 drives the substrate to move, and at the same time, it hot-presses the substrate to achieve the purpose of drying.

[0030] The heat-conducting belt 6 is equipped with a slide rod 7. The end of the slide rod 7 is welded to the inner wall of the heating chamber 5. The slide rod 7 is slidably fitted with a drive slide block 8. The drive slide block 8 is fixedly installed with a drive wheel. The drive wheel drives the drive slide block 8 to move along the slide rod 7. Since this is existing technology, it will not be described in detail.

[0031] The slide rod 7 is parallel to the air duct 62. An inclined electric actuator 81 is fixedly installed at the bottom of the drive slide 8, and a sponge block 82 is fixedly installed at the lower end of the electric actuator 81. Since hot steam is being transported, small condensation will appear on the inner wall of the temperature-conducting belt 6 after the temperature drops following the completion of the operation. By extending the electric actuator 81, the sponge block 82 comes into contact with the inner wall of the temperature-conducting belt 6. The rotation of the temperature-conducting belt 6 and the back-and-forth movement of the drive slide 8 thus achieve a wiping effect.

[0032] An air outlet is provided at the bottom of the air chamber 4, and a fan 42 is fixedly installed at the air outlet. The fan 42 accelerates the airflow, thereby drawing hot steam into the air chamber 4.

[0033] The top of the guardrail 2 has a slot 21, and the end of the bracket 3 is inserted into the slot 21. The connecting pipes 41 on the two brackets 3 are arranged in an alternating manner.

[0034] The heating chamber 5 has a connection interface 51 at one end, and the air duct 62 extends to the outside of the heating chamber 5 through the connection interface 51.

[0035] In summary, this polyurethane emulsion coating oven air duct system consists of a worktable 1, an air chamber 4, and a heating chamber 5. Hot steam is first introduced into the heating chamber 5 and then ejected from the air chamber 4. The air chamber 4 serves as the initial heating method, acting as a preheating agent. The heating chamber 5 is equipped with a heat-conducting belt 6, a roller 61, and an air duct 62. The heat-conducting belt 6 contacts the surface of the substrate to achieve hot pressing, thus realizing a secondary drying and heating effect. This improves drying capacity, avoids uneven drying, and ensures thorough drying.

[0036] 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 polyurethane emulsion coating oven air duct system comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a traction roller (11), a pair of guardrails (2) and a heating chamber (5) from left to right. The two guardrails (2) are arranged symmetrically in front and behind. The heating chamber (5) is connected to the right end of the guardrails (2). Two supports (3) are connected between the two guardrails (2). Multiple air chambers (4) are installed on the supports (3). The end of the heating chamber (5) is connected to an air duct (9). The air outlet of the air duct (9) is connected to a connecting pipe (41). The connecting pipe (41) is connected to the air chamber (4). The heating chamber (5) is equipped with a temperature guide belt (6), a roller (61), and an air duct (62). The air duct (62) is located directly above the roller (61). The temperature guide belt (6) is sleeved around the roller (61) and the air duct (62). The roller (61) and the air duct (62) are connected by the temperature guide belt (6). The air inlet end of the air duct (9) extends into the heating chamber (5). The bottom of the air duct (62) is provided with a hole (621), and the end of the air duct (62) extends to the outside of the heating chamber (5) and is connected to a hot air conveying device.

2. A polyurethane emulsion coating oven air duct system according to claim 1, characterized in that: The heat-conducting strip (6) is provided with a slide rod (7), and the slide rod (7) is slidably fitted with a drive slide block (8). The slide rod (7) is parallel to the air duct (62). The bottom of the drive slide block (8) is connected to an inclined electric push rod (81), and the lower end of the electric push rod (81) is connected to a sponge block (82).

3. A polyurethane emulsion coating oven air duct system according to claim 2, wherein: The air chamber (4) has an air outlet at the bottom, and a fan (42) is installed at the air outlet.

4. A polyurethane emulsion coating oven air duct system according to claim 3, wherein: The guardrail (2) has a slot (21) at the top, and the end of the bracket (3) is inserted into the slot (21). The connecting pipes (41) on the two brackets (3) are arranged in an alternating pattern.

5. The polyurethane emulsion coating oven duct system according to claim 4, characterized in that: The heating chamber (5) has a connection interface (51) at one end, and the air duct (62) extends to the outside of the heating chamber (5) through the connection interface (51).

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