Manufacturing equipment for manufacturing arc-shaped refrigerator door body and sealing strip

Abstract

The manufacturing equipment for manufacturing the arc-shaped refrigerator door body and the sealing strip comprises a drying machine and an injection molding machine, the drying machine is used for drying a painted arc-shaped door plate, the injection molding machine is used for processing materials into the sealing strip through injection molding, specifically, the drying machine is provided with a placing table, an air pipe is arranged above the placing table, and the air pipe is connected with the drying machine. The air inlet end of the air pipe is communicated with the outside and is provided with an exhaust fan; the radiator of the injection molding machine is arranged in the air pipe of the dryer and is closer to the air inlet end of the air pipe than the heating wire. And when the painted arc-shaped door plate needs to be dried, an exhaust fan of the dryer is started to suck external air into the air pipe. Due to the fact that the radiator of the injection molding machine is arranged in the air pipe of the drying machine and is closer to the air inlet end of the air pipe than the electric heating wire, when the injection molding machine works, the radiator dissipates heat of heated cooling water, heat of the heated cooling water is transferred to air sucked into the air pipe to heat the air, and the heat can be effectively utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of arc refrigerator doors, and specifically relates to a manufacturing device for manufacturing the door body and sealing strip of an arc refrigerator door. Background Technique

[0002] When manufacturing the door body of an arc refrigerator door, it needs to go through three steps: stamping, painting, and drying. Its manufacturing equipment includes a stamping machine, a painting device, and a dryer. The stamping machine stamps a sheet into an arc-shaped door panel. The painting device sprays paint on the surface of the stamped arc-shaped door panel. The dryer dries the painted arc-shaped door panel until the paint on the surface of the arc-shaped door panel is completely dry. The sealing strip of an arc refrigerator door is generally manufactured by an injection molding machine. The injection molding machine processes the material into a sealing strip by injection molding. Specifically: the injection molding machine first heats the material to melt it, and then injects the melted material into the mold. After waiting for the material to cool in the mold to form a sealing strip, demolding treatment is carried out. In order to accelerate the cooling speed of the material in the mold, the injection molding machine is generally equipped with a water tank, a water pump, and a radiator. The mold is provided with a cooling water channel. The water pump pumps the cooling water in the water tank into the cooling water channel of the mold. The cooling water absorbs the heat of the mold in the cooling water channel, thereby indirectly cooling the material in the mold. At the same time, the cooling water heats up after absorbing heat. The heated cooling water flows through the radiator, and the radiator dissipates the heat of the heated cooling water into the external air to cool the cooling water. The cooled cooling water flows back into the water tank. The heat of the heated cooling water is directly dissipated into the external air by the radiator, and these heats cannot be effectively utilized and will be wasted. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a manufacturing device for manufacturing the door body and sealing strip of an arc refrigerator door, which can effectively utilize the heat of the heated cooling water.

[0004] To solve the above technical problem, a manufacturing device for manufacturing the door body and sealing strip of an arc refrigerator door of the utility model includes a stamping machine, a painting device, and a dryer, and also includes an injection molding machine. The stamping machine stamps a sheet into an arc-shaped door panel. The painting device sprays paint on the surface of the stamped arc-shaped door panel. The dryer dries the painted arc-shaped door panel. The injection molding machine processes the material into a sealing strip by injection molding. Specifically:

[0005] The dryer is provided with a placement table for placing the painted arc-shaped door panel. Above the placement table, there is an air pipe. The air inlet end of the air pipe is connected to the outside and is provided with an exhaust fan. The exhaust fan sucks external air into the air pipe. The inside of the air pipe is provided with a heating wire to heat the air. The air outlet end of the air pipe discharges the heated air towards the arc-shaped door panel placed on the placement table to dry the arc-shaped door panel;

[0006] The mold of the injection molding machine is provided with a cooling water circuit. The injection molding machine includes a water tank and a water pump. The water pump pumps the cooling water in the water tank into the cooling water circuit of the mold. After the cooling water absorbs the heat of the mold, its temperature rises. The injection molding machine is provided with a radiator for dissipating the heat of the heated cooling water.

[0007] The radiator of the injection molding machine is arranged in the air pipe of the dryer and is closer to the air inlet end of the air pipe than the heating wire, and transfers the heat of the heated cooling water to the air drawn into the air pipe.

[0008] Furthermore, the air pipe is in an "L" shape and includes a horizontal air inlet section and a vertical air outlet section. The air inlet end is located on the air inlet section, and the air outlet end is located on the air outlet section. The radiator is arranged in the air inlet section of the air pipe, and the heating wire is arranged in the air outlet section of the air pipe. A cooling water receiving groove is formed in the air inlet section to receive the cooling water leaking from the radiator.

[0009] Furthermore, a water outlet pipe is provided at the bottom of the cooling water receiving groove, and a valve is provided on the water outlet pipe.

[0010] Furthermore, the cooling water receiving groove is in a funnel shape that is wider at the top and narrower at the bottom.

[0011] Furthermore, the radiator is closer to the air inlet end than the cooling water receiving groove.

[0012] When the arc-shaped door panel after painting needs to be dried, the arc-shaped door panel after painting is placed on the placement table of the dryer, and the air extraction fan of the dryer is started to draw the outside air into the air pipe. Since the radiator of the injection molding machine is arranged in the air pipe of the dryer and is closer to the air inlet end of the air pipe than the heating wire, when the injection molding machine works, its radiator dissipates the heat of the heated cooling water and transfers the heat of the heated cooling water to the air drawn into the air pipe to heat up these air, and these heats can be effectively utilized. The heated air can rise to a higher temperature when passing through the heating wire and can accelerate the drying speed of the paint on the surface of the arc-shaped door panel after being discharged to the arc-shaped door panel. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of a punching machine, a fountain device and a dryer.

[0014] Figure 2 It is a schematic diagram of a dryer and an injection molding machine.

[0015] Figure 3 It is a cross-sectional view of the radiator of a dryer and an injection molding machine. Detailed Embodiment

[0016] The following further elaborates on the present invention in detail in conjunction with the specific embodiments.

[0017] A manufacturing device for manufacturing the door body of an arc-shaped refrigerator door, see Figure 1, including a stamping machine 1, a painting device 2 and a dryer 3. The operator places the sheet on the stamping machine 1, operates the stamping machine 1 to stamp the sheet into an arc-shaped door panel 9, then places the stamped arc-shaped door panel 9 flat in the painting device 2, operates the painting device 2 to paint the upper surface 91 of the arc-shaped door panel 9, and then transfers the painted arc-shaped door panel 9 to the dryer 3, and uses the dryer 3 to dry the painted arc-shaped door panel 9. The stamping machine 1 and the painting device 2 are both prior arts. The dryer 3 includes a drying box 31, and the bottom of the drying box 31 serves as a placement table 32, which can be used to place the arc-shaped door panel 9. An "L"-shaped air pipe 33 is installed at the top of the drying box 31. The air pipe 33 includes a horizontal air intake section 331 and a vertical air outlet section 332. See Figure 1 and Figure 3 , the right end of the air intake section 331 is the air intake end 333 of the air pipe 33, and an air intake port 335 communicating with the outside is opened to the right. An air extraction fan 337 is installed at the air intake port 335. The air outlet section 332 is located above the placement table 32, and an electric heating wire 338 is installed inside it. Its lower end is the air outlet end 334 of the air pipe 33, and an air outlet 336 is opened downward. The air outlet 336 is aligned with the placement table 32.

[0018] See Figure 1 、 Figure 3 , when the painted arc-shaped door panel 9 needs to be dried: The operator places the painted arc-shaped door panel 9 on the placement table 32, and then starts the air extraction fan 337 of the dryer 3 to draw outside air from the air intake port 335 of the air intake end 333 into the air intake section 331 of the air pipe 33. The air moves along the air pipe 33, moves from the air intake section 331 to the air outlet section 332 and passes through the electric heating wire 338. The electric heating wire 338 heats the air to raise its temperature. The heated air is discharged from the air outlet 336 of the air outlet end 334 to the upper surface 91 of the arc-shaped door panel 9 to dry the arc-shaped door panel 9.

[0019] See Figure 2 、 Figure 3, this manufacturing equipment is also used to manufacture the sealing strip of the arc-shaped refrigerator door, including the existing injection molding machine 4. The injection molding machine 4 processes the material into a sealing strip through injection molding. Specifically: the injection molding machine 4 first heats the material to melt it, and then injects the melted material into the mold 41. After waiting for the material to cool in the mold 41 to form a sealing strip, demolding treatment is carried out. In order to accelerate the cooling rate of the material in the mold 41, the injection molding machine 4 is provided with a water tank 42, a water pump 43 and a radiator 44, all of which are prior arts. Among them, the radiator 44 is arranged in the intake section 331 of the air pipe 33 of the dryer 3, closer to the air inlet end 333 of the air pipe 33 than the heating wire 338. The radiator 44 includes a heat dissipation copper pipe 441 and a metal heat dissipation fin 442 sleeved outside the heat dissipation copper pipe 441. The mold 41 is provided with an existing cooling water path 411. The water inlet end of the water pump 43 is connected to the water tank 42, and the water outlet end is connected to the water inlet end of the cooling water path 411. The water outlet end of the cooling water path 411 is connected to the water inlet end of the heat dissipation copper pipe 441 of the radiator 44. The water outlet end of the heat dissipation copper pipe 441 of the radiator 44 is connected to the water tank 42. When the injection molding machine 4 works, the water pump 43 pumps the cooling water in the water tank 42 into the cooling water path 411 of the mold 41. The cooling water absorbs the heat of the mold 41 in the cooling water path 411, thereby indirectly cooling the material in the mold 41. At the same time, the cooling water heats up after absorbing heat. The heated cooling water flows through the radiator 44. The radiator 44 dissipates heat from the heated cooling water, transfers the heat of the heated cooling water to the air pumped into the intake section 331 of the air pipe 33 to heat up these air and cool down the cooling water. These heats can be effectively utilized. The metal heat dissipation fin 442 can increase the contact area between the radiator 44 and the air, improving the heat transfer efficiency. The heated air moves along the air pipe 33 to the outlet section 332 and is heated by the heating wire 338. Compared with the normal temperature air, the heated air can reach a higher temperature when being heated by the heating wire 338, and can accelerate the drying speed of the paint on the upper surface 91 of the arc-shaped door panel 9 after being discharged from the air outlet 336 of the air outlet end 334. The cooled cooling water in the heat dissipation copper pipe 441 flows back to the water tank 42 for recycling.

[0020] See Figure 3, the intake section 331 of the air pipe 33 is recessed downward to form a cooling water receiving groove 341. The cooling water receiving groove 341 is in the shape of a funnel with a wider upper part and a narrower lower part, and a water outlet pipe 342 is provided at the bottom. A valve 343 is provided on the water outlet pipe 342. The radiator 44 is located between the cooling water receiving groove 341 and the intake end 333 of the air pipe 33, and is closer to the intake end 333 of the air pipe 33 than the cooling water receiving groove 341. When the cooling water leaks due to the breakage of the heat dissipation copper pipe 441 on the radiator 44, the leaked cooling water enters the air pipe 33, flows leftward along the intake section 331 of the air pipe 33 and enters the cooling water receiving groove 341, and is received by the cooling water receiving groove 341. The leaked cooling water will not continue to flow along the intake section 331 to the outlet section 332, nor will it flow onto the arc-shaped door panel 9. The operator can open the valve 343 to drain the cooling water in the cooling water receiving groove 341 from the water outlet pipe 342.

[0021] As described above, it is only the implementation mode of the present invention, and does not limit the scope of patent protection. Those skilled in the art make non-substantive changes or substitutions based on the present invention, and still fall within the scope of patent protection.

Claims

1. A manufacturing device for manufacturing a curved refrigerator door body and a sealing strip, comprising a punching machine, a paint spraying device and a drying machine, and also an injection molding machine, wherein the punching machine punches a plate into a curved door panel, the paint spraying device sprays paint on the surface of the punched curved door panel, the drying machine dries the painted curved door panel, and the injection molding machine processes the material into a sealing strip by injection molding, specifically: The dryer is provided with a placing table for placing the curved door panels after painting. An air pipe is provided above the placing table. The air inlet end of the air pipe is connected to the outside and is provided with an exhaust fan. The exhaust fan draws the outside air into the air pipe. An electric heating wire is provided inside the air pipe to heat the air. The air outlet end of the air pipe discharges the heated air to the curved door panels placed on the placing table to dry the curved door panels. The mold of the injection molding machine is provided with a cooling water circuit. The injection molding machine includes a water tank and a water pump. The water pump pumps the cooling water in the water tank into the cooling water circuit of the mold. The cooling water absorbs the heat of the mold and then heats up. The injection molding machine is provided with a radiator for dissipating the heat of the heated cooling water. Features: The radiator of the injection molding machine is located in the air pipe of the dryer and is closer to the air inlet end of the air pipe than the heating wire, transferring the heat of the heated cooling water to the air drawn into the air pipe.

2. The manufacturing equipment according to claim 1, characterized in that: The air pipe is "L" shaped, including a horizontal air inlet section and a vertical air outlet section. The air inlet end is located on the air inlet section, and the air outlet end is located on the air outlet section. The radiator is arranged in the air inlet section of the air pipe, and the heating wire is arranged in the air outlet section of the air pipe. The air inlet section is formed with a cooling water receiving groove to receive the cooling water leaked from the radiator.

3. The production equipment according to claim 2, characterized in that: A water outlet pipe is arranged at the bottom of the cooling water receiving tank, and a valve is arranged on the water outlet pipe.

4. The production equipment according to claim 2, characterized in that: The cooling water receiving tank is in the shape of a funnel which is wide at the top and narrow at the bottom.

5. The production equipment according to claim 2, characterized in that: The radiator is closer to the air intake end than the cooling water receiving tank.

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