Special drying oven for foaming solvent-free polyurethane synthetic leather

Abstract

The utility model relates to a special drying oven for foaming solvent-free polyurethane synthetic leather. The drying oven comprises a drying oven body, wherein an inner box is fixedly connected in the drying oven body; a box door is rotationally connected to the position, corresponding to the inner box, of the outer side of the drying box body. A plurality of sets of symmetrically-arranged sliding rails are fixedly connected to the interior of the inner box. A placing plate is slidably connected into each group of sliding rails; an exhaust fan is fixedly connected to the upper surface of the drying oven body; when the hot air is transferred to the uppermost layer, the hot air flows into the air outlet pipe, the air outlet pipe is located in the water tank, the hot air can heat water in the water tank in the flowing process in the air outlet pipe, and when a batch of synthetic leather is taken out after being heated, heat in the drying oven body can be lost. And the heated water can heat the drying oven body and preserve the heat of the drying oven body, and when the synthetic leather is continuously heated subsequently, the interior of the drying oven does not need to be reheated, so that resources are fully utilized, and resource waste is avoided.

Description

Technical Field

[0001] This utility model relates to the field of oven technology, and in particular to a solvent-free polyurethane synthetic leather foaming oven. Background Technology

[0002] Solvent-free polyurethane synthetic leather is a synthetic material commonly used in the manufacture of leather goods such as clothing, bags, and furniture. Compared to traditional polyurethane synthetic leather, solvent-free polyurethane synthetic leather does not contain harmful solvents and is therefore considered more environmentally friendly and healthier.

[0003] Currently, the production process of solvent-free polyurethane synthetic leather requires a dedicated foaming oven. When using the oven, an exhaust fan draws air into the oven. A heating wire is fixed to the bottom of the oven at the position corresponding to the exhaust pipe to heat the air inside the exhaust pipe. The hot air discharged from the exhaust pipe rises to the shelf where the synthetic leather is placed, thus heating the synthetic leather. After the hot air comes into contact with the synthetic leather, it flows out through a one-way valve at the top of the oven, so that the pressure inside the oven is the same as the outside pressure.

[0004] In current technologies, although synthetic leather can be heated by using a combination of a fan, exhaust pipe, and heating wire, hot air will flow out of the oven through a one-way valve after contacting the synthetic leather, resulting in a waste of resources. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the problem of resource waste caused by the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides a solvent-free polyurethane synthetic leather foaming oven.

[0007] In one embodiment of this utility model, the oven body includes an inner chamber fixedly connected to the oven body; a door is rotatably connected to the outer side of the oven body corresponding to the position of the inner chamber; multiple sets of symmetrically arranged slide rails are fixedly connected inside the inner chamber; a placement plate is slidably connected in each set of slide rails; an exhaust fan is fixedly connected to the upper surface of the oven body; an exhaust pipe is fixedly connected to one side of the exhaust fan; an air inlet is fixedly connected to the end of the exhaust pipe away from the exhaust fan; and an air inlet pipe is fixedly connected to the side of the exhaust fan away from the exhaust pipe, and the air inlet pipe passes through the exhaust fan. The oven body; the other end of the air inlet pipe is fixedly connected to the bottom of the inner box; a heating wire is fixedly connected to the lower part of the oven body corresponding to the position of the air inlet pipe, and the heating wire is located outside the air inlet pipe; multiple evenly arranged U-shaped tubes are fixedly connected to the outside of the inner box, and the U-shaped tubes correspond to the placement plate; an air outlet pipe is fixedly connected to the top of the inner box, and the air outlet pipe penetrates the oven body; an air outlet hopper is fixedly connected to the other end of the air outlet pipe; a water tank is fixedly connected to the outside of the oven body corresponding to the position of the air outlet pipe, and the middle part of the air outlet pipe is located inside the water tank.

[0008] In one embodiment of this utility model, a connecting plate is fixedly connected between each of the placement plates.

[0009] In one embodiment of this utility model, a motor is fixedly connected to the outer side of the oven body at the position corresponding to the uppermost placement plate; a rotating shaft is fixedly connected to the output end of the motor, and the rotating shaft passes through the oven body; a gear is fixedly connected to the end of the rotating shaft away from the motor; a rack is fixedly connected to the upper surface of the uppermost placement plate at the position corresponding to the gear, and the rack meshes with the gear.

[0010] In one embodiment of this utility model, a first filter screen is fixedly connected inside the air inlet hopper; a second filter screen is fixedly connected inside the air outlet hopper.

[0011] In one embodiment of this utility model, a symmetrically arranged fixing block is fixedly connected to the upper surface of the bottommost set of slide rails; a stop bar is rotatably connected to the middle of the fixing block.

[0012] In one embodiment of the present invention, a drying box is fixedly connected to the middle of the exhaust pipe, and desiccant particles are placed inside the drying box.

[0013] In one embodiment of this utility model, a plurality of evenly arranged ball bearings are tumbling connected to both sides of the placement plate.

[0014] In one embodiment of this utility model, a sealing adsorption strip is fixedly connected to the position of the box door corresponding to the inner box, and the sealing adsorption strip is used in conjunction with the inner box.

[0015] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0016] This utility model describes a solvent-free polyurethane synthetic leather foaming oven. When heating the synthetic leather, an exhaust fan and heating wire are activated. The exhaust fan draws air into the oven through an exhaust pipe and an air inlet duct, and then delivers the air to the bottom of the inner chamber through the air inlet pipe. During the air delivery process, the heating wire heats the air inside the air inlet pipe, ensuring that hot air is discharged into the bottom of the inner chamber. Because multiple sets of sliding rails are fixed inside the inner chamber, and each rail has a slidably connected placement plate, the placement plates divide the inner chamber into multiple sealed compartments. With the help of the U-shaped tube, hot air is delivered layer by layer, thus heating each layer of synthetic leather. When the hot air reaches the top layer, it flows into the exhaust duct, which is located inside the water tank. As the hot air flows through the exhaust duct, it heats the water inside the tank. When a batch of synthetic leather is heated and removed, the heat inside the oven body is lost, but the heated water can be used to heat and keep the oven body warm. When the synthetic leather is heated again in subsequent batches, there is no need to reheat the inside of the oven, making full use of resources and avoiding waste. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0018] Figure 1 This is a cross-sectional view of the present invention;

[0019] Figure 2 This is a perspective view of the present invention;

[0020] Figure 3 This is a schematic diagram of the interior of the cabinet door in this utility model;

[0021] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0022] Figure 5 This is a perspective view of the gear and rack in this utility model.

[0023] Instruction manual diagram markings: 1. Oven body; 11. Door; 12. Inner chamber; 13. Slide rail; 14. Placement plate; 15. Sealing adsorption strip; 2. Exhaust fan; 21. Exhaust duct; 22. Air inlet hopper; 23. Air inlet pipe; 24. Heating wire; 25. U-shaped tube; 26. Air outlet duct; 27. Air outlet hopper; 28. Water tank; 3. Connecting plate; 4. Motor; 41. Rotating shaft; 42. Gear; 43. Rack; 5. Fixing block; 51. Baffle bar; 6. Filter No. 1; 61. Filter No. 2; 7. Drying box; 8. Ball bearing. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0025] Reference Figures 1-5As shown, this utility model discloses a solvent-free polyurethane synthetic leather foaming oven, comprising an oven body 1, an inner box 12 fixedly connected inside the oven body 1; a door 11 rotatably connected to the outer side of the oven body 1 corresponding to the position of the inner box 12; multiple sets of symmetrically arranged slide rails 13 fixedly connected inside the inner box 12; a placement plate 14 slidably connected inside each set of slide rails 13; an exhaust fan 2 fixedly connected to the upper surface of the oven body 1; an exhaust pipe 21 fixedly connected to one side of the exhaust fan 2; an air inlet hopper 22 fixedly connected to the end of the exhaust pipe 21 away from the exhaust fan 2; an air inlet pipe 23 fixedly connected to the side of the exhaust fan 2 away from the exhaust pipe 21, and the air inlet pipe 23 penetrates the oven body 1; the other side of the air inlet pipe 23... One end is fixed to the bottom of the inner box 12; a heating wire 24 is fixed to the lower part of the oven body 1 at the position corresponding to the air inlet pipe 23, and the heating wire 24 is located outside the air inlet pipe 23; a plurality of evenly arranged U-shaped pipes 25 are fixed to the outside of the inner box 12, and the U-shaped pipes 25 correspond to the placement plate 14; an air outlet pipe 26 is fixed to the top of the inner box 12, and the air outlet pipe 26 penetrates the oven body 1; an air outlet hopper 27 is fixed to the other end of the air outlet pipe 26; a water tank 28 is fixed to the outside of the oven body 1 at the position corresponding to the air outlet pipe 26, and the middle part of the air outlet pipe 26 is located inside the water tank 28; in the current technology, although the exhaust fan 2, exhaust pipe 21 and heating wire 24 can be used to heat the oven body 1, the heating wire 24 can be fixed to the bottom of the inner box 12. Synthetic leather is heated, but after the hot air comes into contact with the synthetic leather, it flows out of the oven through a one-way valve, resulting in waste of resources. When heating the synthetic leather, the device activates the exhaust fan 2 and heating wire 24. The exhaust fan 2 draws air into itself through the exhaust pipe 21 and the air inlet hopper 22, and then delivers the air to the bottom of the inner chamber 12 through the air inlet pipe 23. During the air delivery process, the heating wire 24 heats the air inside the air inlet pipe 23, ensuring that the air discharged into the bottom of the inner chamber 12 is hot air. Because multiple sets of slide rails 13 are fixedly connected inside the inner chamber 12, and each slide rail 13 has a slidably connected placement plate 14, the placement plate 14... The inner chamber 12 is divided into multiple sealed compartments. With the help of U-shaped pipes 25, hot air is delivered layer by layer to heat each layer of synthetic leather. When the hot air reaches the top layer, it flows into the air outlet pipe 26, which is located in the water tank 28. As the hot air flows in the air outlet pipe 26, it heats the water inside the water tank 28. When a batch of synthetic leather is heated and removed, the heat inside the oven body 1 is lost, while the heated water can be used to heat and keep the oven body 1 warm. When the synthetic leather is heated again, it is not necessary to reheat the inside of the oven, making full use of resources and avoiding waste.

[0026] In one embodiment of the present invention, a connecting plate 3 is fixedly connected between each of the placement plates 14; through the connecting plate 3 fixed between each placement plate 14, all placement plates 14 can be associated, making all placement plates 14 a whole.

[0027] In one embodiment of this utility model, a motor 4 is fixedly connected to the outer side of the oven body 1 at a position corresponding to the uppermost placement plate 14; a rotating shaft 41 is fixedly connected to the output end of the motor 4, and the rotating shaft 41 passes through the oven body 1; a gear 42 is fixedly connected to the end of the rotating shaft 41 away from the motor 4; a rack 43 is fixedly connected to the upper surface of the uppermost placement plate 14 at a position corresponding to the gear 42, and the rack 43 meshes with the gear 42; when synthetic leather needs to be placed or removed, the motor 4 is started by the operator, and the motor 4 drives the rotating shaft 41. The rotating shaft 41 rotates, causing the gear 42 to rotate. The gear 42 rotates, causing the rack 43 to move. The movement of the rack 43 causes the placement plate 14 to slide within the slide rail 13, allowing the placement plate 14 to slide out from the inner box 12. This facilitates the placement or removal of synthetic leather and prevents workers from being burned. After the synthetic leather is placed, the motor 4 is restarted, causing the rotating shaft 41 to reverse. The reverse rotation of the rotating shaft 41 causes the gear 42 to reverse, and under the drive of the rack 43, the placement plate 14 slides into the inner box 12, thus enabling the drying process.

[0028] In one embodiment of this utility model, a first filter screen 6 is fixedly connected inside the air inlet hopper 22; a second filter screen 61 is fixedly connected inside the air outlet hopper 27; by using the first filter screen 6 and the second filter screen 61 fixedly connected to the air inlet hopper 22 and the air outlet hopper 27 respectively, impurities in the air can be isolated to prevent impurities from entering the interior of the oven body 1.

[0029] In one embodiment of this utility model, symmetrically arranged fixing blocks 5 are fixed to the upper surface of the lowest set of slide rails 13; a stop bar 51 is rotatably connected to the middle of the fixing blocks 5; by rotating the stop bar 51 to a state parallel to the slide rails 13 through the fixing blocks 5 fixed to the lowest set of slide rails 13 and the stop bar 51 rotatably connected to the middle of the fixing blocks 5, the placement plate 14 can be blocked, thereby preventing the placement plate 14 from sliding out of the slide rails 13; when it is necessary to clean the inside of the inner box 12, the stop bar 51 can be rotated to a state perpendicular to the slide rails 13, so that the placement plate 14 can be taken out from the inner box 12 without being blocked.

[0030] In one embodiment of this utility model, a drying box 7 is fixedly connected to the middle of the exhaust pipe 21, and desiccant particles are placed inside the drying box 7. Through the drying box 7 fixed to the exhaust pipe 21, and the desiccant particles placed inside the drying box 7, when the exhaust fan 2 is drawing air, the desiccant particles can absorb the moisture contained in the air, thereby ensuring that the drawn-in air remains dry.

[0031] In one embodiment of the present invention, a plurality of evenly arranged ball bearings 8 are rolledly connected to both sides of the placement plate 14; through the ball bearings 8 rolledly connected to the placement plate 14, the placement plate 14 can slide more smoothly when sliding in the slide rail 13.

[0032] In one embodiment of this utility model, a sealing adsorption strip 15 is fixedly connected to the position of the door 11 corresponding to the inner box 12, and the sealing adsorption strip 15 is used in conjunction with the inner box 12; through the sealing adsorption strip 15 fixed on the door 11, when the door 11 is closed, the sealing adsorption strip 15 will be adsorbed on the outside of the inner box 12, thereby sealing the oven and the inner box 12.

[0033] Working principle:

[0034] In existing technologies, although synthetic leather can be heated by the combination of exhaust fan 2, exhaust pipe 21, and heating wire 24, hot air flows out of the oven through a one-way valve after contacting the synthetic leather, resulting in resource waste. This device heats synthetic leather by activating exhaust fan 2 and heating wire 24. Exhaust fan 2 draws air into the exhaust pipe 21 and air inlet 22, and then delivers the air to the bottom of the inner chamber 12 through air inlet pipe 23. During air delivery, heating wire 24 heats the air inside air inlet pipe 23, ensuring that hot air is discharged into the bottom of the inner chamber 12. This is because multiple sets of sliding rails 13 are fixedly connected inside the inner chamber 12, and these rails are all slidably connected. With the placement plate 14 attached, the inner chamber 12 is divided into multiple sealed compartments. Through the cooperation of the U-shaped tube 25, hot air is delivered layer by layer, thereby heating each layer of synthetic leather. When the hot air reaches the top layer, it flows into the air outlet duct 26, which is located in the water tank 28. During the flow of the hot air in the air outlet duct 26, it heats the water inside the water tank 28. When a batch of synthetic leather is heated and removed, the heat inside the oven body 1 is lost, while the heated water can be used to heat and keep the oven body 1 warm. When the synthetic leather is heated again in the future, it is not necessary to reheat the inside of the oven, thus making full use of resources and avoiding waste.

[0035] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A solvent-free polyurethane synthetic leather foaming special oven, characterized by: The oven includes an oven body (1), an inner box (12) fixedly connected inside the oven body (1); a door (11) is rotatably connected to the outer side of the oven body (1) corresponding to the position of the inner box (12); multiple sets of symmetrically arranged slide rails (13) are fixedly connected inside the inner box (12); a placement plate (14) is slidably connected inside each set of slide rails (13); an exhaust fan (2) is fixedly connected to the upper surface of the oven body (1); an exhaust pipe (21) is fixedly connected to one side of the exhaust fan (2); an air inlet hopper (22) is fixedly connected to the end of the exhaust pipe (21) away from the exhaust fan (2); an air inlet pipe (23) is fixedly connected to the side of the exhaust fan (2) away from the exhaust pipe (21), and the air inlet pipe (23) penetrates the oven body (1); the air inlet pipe (23) The other end is fixed to the bottom of the inner box (12); a heating wire (24) is fixed to the bottom of the oven body (1) at the position corresponding to the air inlet pipe (23), and the heating wire (24) is located outside the air inlet pipe (23); a plurality of evenly arranged U-shaped pipes (25) are fixed to the outside of the inner box (12), and the U-shaped pipes (25) correspond to the placement plate (14); an air outlet pipe (26) is fixed to the top of the inner box (12), and the air outlet pipe (26) penetrates the oven body (1); an air outlet hopper (27) is fixed to the other end of the air outlet pipe (26); a water tank (28) is fixed to the outside of the oven body (1) at the position corresponding to the air outlet pipe (26), and the middle part of the air outlet pipe (26) is located inside the water tank (28).

2. The solvent-free polyurethane synthetic leather foaming special oven according to claim 1, characterized in that: Each of the placement plates (14) is fixedly connected to a connecting plate (3).

3. The solvent-free polyurethane synthetic leather foaming special oven according to claim 2, characterized in that: A motor (4) is fixedly connected to the outer side of the oven body (1) at the position corresponding to the uppermost placement plate (14); a rotating shaft (41) is fixedly connected to the output end of the motor (4), and the rotating shaft (41) passes through the oven body (1); a gear (42) is fixedly connected to the end of the rotating shaft (41) away from the motor (4); a rack (43) is fixedly connected to the upper surface of the uppermost placement plate (14) at the position corresponding to the gear (42), and the rack (43) meshes with the gear (42).

4. The solvent-free polyurethane synthetic leather foaming special oven according to claim 3, characterized in that: The air inlet hopper (22) has a first filter screen (6) fixedly connected inside; the air outlet hopper (27) has a second filter screen (61) fixedly connected inside.

5. The solvent-free polyurethane synthetic leather foaming special oven according to claim 4, characterized in that: The upper surface of the bottom set of slide rails (13) is fixed with symmetrically arranged fixing blocks (5); a stop bar (51) is rotatably connected to the middle of the fixing blocks (5).

6. The solvent-free polyurethane synthetic leather foaming special oven according to claim 5, characterized in that: A drying box (7) is fixedly connected to the middle of the exhaust pipe (21), and desiccant particles are placed inside the drying box (7).

7. The foaming special oven for solvent-free polyurethane synthetic leather according to claim 6, characterized in that: The two sides of the placement plate (14) are respectively connected to a number of evenly arranged ball bearings (8). 8.The foaming special oven for synthesizing solvent-free polyurethane artificial leather according to claim 7, characterized in that: The door (11) is fixedly connected to the inner box (12) with a sealing adsorption strip (15), and the sealing adsorption strip (15) is used in conjunction with the inner box (12).

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