Heating roller device for coextrusion polyurethane film coating

Abstract

The utility model belongs to the technical field of coextrusion polyurethane film coating processing, and particularly relates to a heating roller device for coextrusion polyurethane film coating, which comprises a working table, an installation driving device arranged at the top of the working table, a conveying heating device arranged at the middle part and the left end of the installation driving device, and a liquid storage device arranged at the bottom of the left end of the conveying heating device, the conveying and heating device comprises a conveying structure and a heating structure, the conveying structure is installed at the left end of the heating structure, the heating structure comprises an upper roller, the right end of the upper roller is connected with a connecting pipe, the end, away from the upper roller, of the connecting pipe is connected with a lower roller, rotational flow plates are installed in the upper roller and the lower roller, and sealing bearings are installed in the left and right ends of the upper roller and the lower roller. According to the heating roller device for co-extrusion polyurethane film coating, rotational flow plates are installed in the upper roller and the lower roller, so that the heat exchange area of heat conduction oil is effectively increased while the flow speed of the heat conduction oil is slowed down, the uniform heating effect is improved, and the double-face heating effect is better.

Description

Technical Field

[0001] This utility model relates to the field of co-extruded polyurethane film coating technology, specifically a heating roller device for co-extruded polyurethane film coating. Background Technology

[0002] During the co-extruded polyurethane film coating process, heated rollers are required to heat the film material to meet the temperature requirements of the coating process and improve the coating quality and effect.

[0003] Common heating methods include electric heating and heat transfer oil heating. Electric heating involves installing heating wires or heating tubes inside the roller body, generating heat through an electric current. Heat transfer oil heating involves heating the heat transfer oil and then circulating it within the heating chamber of the roller body to transfer heat. In addition, temperature sensors are equipped to monitor the roller body temperature in real time for precise control of the heating process.

[0004] In existing technologies, when using heat transfer oil to heat the roller body, the flow rate of the heat transfer oil inside the roller body is usually relatively fast, which can easily lead to a low heat exchange rate, affecting the efficiency of processing and production, and can also easily cause uneven heating of the roller body.

[0005] Therefore, we urgently need to provide a heating roller device for coating co-extruded polyurethane films. Utility Model Content

[0006] The purpose of this utility model is to provide a heating roller device for co-extruded polyurethane film coating, so as to solve the problem mentioned in the background art that when using heat transfer oil to heat the roller body, the flow speed of heat transfer oil inside the roller body is usually fast, which easily leads to low heat exchange rate, affects the efficiency of processing and production, and easily leads to uneven heating of the roller body.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a heating roller device for co-extruded polyurethane film coating, comprising a worktable, an installation drive device mounted on the top of the worktable, a conveying heating device mounted in the middle and on the left end of the installation drive device, and a liquid storage device provided at the bottom of the left end of the conveying heating device.

[0008] The conveying and heating device includes a conveying structure and a heating structure, with the conveying structure installed at the left end of the heating structure.

[0009] The heating structure includes an upper roller, a connecting pipe connected to the right end of the upper roller, and a lower roller connected to the end of the connecting pipe away from the upper roller. Swirl plates are installed inside the upper roller and the lower roller, and sealed bearings are installed inside the left and right ends of the upper roller and the lower roller.

[0010] Preferably, the conveying structure includes a pump body, the pump body output end is connected to a liquid suction pipe, the pump body output end is connected to a liquid delivery pipe, and a return pipe is provided on the right side of the pump body.

[0011] Preferably, the infusion tube is connected to the left end of the upper roller via a sealed bearing, the two ends of the outer surface of the connecting tube are connected to the right ends of the upper roller and the lower roller via sealed bearings, and the left end of the lower roller is connected to the return tube via a sealed bearing. The swirl plate is made of a material with good thermal conductivity, such as copper alloy or stainless steel.

[0012] Preferably, the liquid storage device includes a heating box, an injection pipe is installed on the middle of the top surface of the heating box near the front end, a partition is fixedly installed inside the heating box near the bottom end, and a heating pipe is installed at the bottom inside the heating box.

[0013] Preferably, the top surface of the heating box is detachably connected to the pump body, and the inner wall of the circular hole in the middle of the top surface of the heating box near the left end is connected to the outer surface of the liquid extraction pipe, and the inner wall of the circular hole in the middle of the top surface of the heating box near the right end is connected to the end of the return pipe away from the lower roller.

[0014] Preferably, the installation drive device includes a mounting frame, a mounting plate is mounted in the middle of the mounting frame, an asynchronous motor is mounted on the top surface of the mounting plate on the left side, a main gear is connected to the output end of the asynchronous motor, and a driven gear is meshed with the bottom of the outer surface of the main gear.

[0015] Preferably, the bottom end of the mounting frame is fixedly connected to the left and right ends of the center of the top surface of the workbench. The mounting plate is detachably installed inside the rectangular mounting hole in the center of the mounting frame by bolts. The gear is connected to the outer surface of the left end of the upper roller from the inside. The asynchronous motor is detachably connected to the center of the top surface of the left-side top mounting plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The heating roller device for co-extruded polyurethane film coating, by setting up a conveying heating device, utilizes the swirl plates installed inside the upper and lower rollers to effectively increase the heat exchange area of ​​the heat transfer oil while slowing down the flow rate of the heat transfer oil, thereby improving the uniform heating effect and the double-sided heating effect is better.

[0018] 2. The heating roller device for co-extruded polyurethane film coating is equipped with a drive unit and a mounting plate and mounting frame that are detachably connected by bolts, which facilitates quick disassembly, replacement and maintenance of the roller body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2This is an enlarged view of the internal structure of the heating device of this utility model;

[0021] Figure 3 This is an enlarged view of the mounting drive device of this utility model;

[0022] Figure 4 This is an enlarged view of the internal structure of the liquid storage device of this utility model.

[0023] In the diagram: 1. Workbench; 101. Pump body; 102. Suction pipe; 103. Infusion pipe; 104. Sealed bearing; 105. Upper roller; 106. Swirl plate; 107. Connecting pipe; 108. Lower roller; 109. Return pipe; 201. Mounting frame; 202. Mounting plate; 203. Asynchronous motor; 204. Main gear; 205. Driven gear; 301. Heating box; 302. Injection pipe; 303. Partition plate; 304. Heating tube. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0025] In existing technologies, when using heat transfer oil to heat the roller body, the oil typically flows at a relatively high speed inside the roller body. This can easily lead to a low heat exchange rate, affecting processing efficiency and causing uneven heating of the roller body. Please refer to... Figures 1-4 The embodiment provides a heating roller device for co-extruded polyurethane film coating, which can effectively improve the heating rate and heating uniformity of the roller body. The heating roller device for co-extruded polyurethane film coating includes a worktable 1, an installation drive device is installed on the top of the worktable 1, a conveying heating device is installed in the middle and left end of the installation drive device, and a liquid storage device is provided at the bottom of the left end of the conveying heating device.

[0026] The conveying and heating device includes a conveying structure and a heating structure, with the conveying structure installed at the left end of the heating structure. The heating structure includes an upper roller 105, with a connecting pipe 107 connected to the right end of the upper roller 105. A lower roller 108 is connected to the end of the connecting pipe 107 furthest from the upper roller 105. Swirl plates 106 are installed inside both the upper roller 105 and the lower roller 108, and sealed bearings 104 are installed inside both ends of the upper roller 105 and the lower roller 108. The conveying structure includes a pump body 101, with a suction pipe 102 and a delivery pipe 103 connected to the output end of the pump body 101. A return pipe 109 is located on the right side of the pump body 101.

[0027] The infusion tube 103 is connected to the left end of the upper roller 105 via a sealed bearing 104. The two ends of the outer surface of the connecting tube 107 are connected to the upper roller 105 and the right end of the lower roller 108 via sealed bearings 104. The left end of the lower roller 108 is connected to the return tube 109 via a sealed bearing 104.

[0028] The liquid storage device includes a heating box 301. A liquid injection pipe 302 is installed on the middle of the top surface of the heating box 301 near the front end. A partition 303 is fixedly installed inside the heating box 301 near the bottom end. A heating pipe 304 is installed at the bottom end of the inside of the heating box 301. The top surface of the heating box 301 is detachably connected to the pump body 101. A circular hole is opened in the middle of the top surface of the heating box 301 near the left end, and its inner wall is connected to the outer surface of the liquid extraction pipe 102. A circular hole is opened in the middle of the top surface of the heating box 301 near the right end, and its interior is connected to the end of the return pipe 109 away from the lower roller 108.

[0029] By setting up the conveying heating device, and utilizing the swirl plate 106 installed inside the upper roller 105 and lower roller 108, the heat transfer oil flow rate is slowed down while the heat exchange area of ​​the heat transfer oil is effectively increased, thereby improving the uniform heating effect and the double-sided heating effect is better.

[0030] Heat transfer oil is injected into the heating box 301 through the injection pipe 302, and the heating pipe 304 is activated to heat the heat transfer oil. Then, the pump body 101 is activated to pump the heated heat transfer oil through the extraction pipe 102, and the oil is transported into the upper roller 105 via the delivery pipe 103. The heat transfer oil then enters the lower roller 108 via the connecting pipe 107. During the heating of the upper roller 105 and lower roller 108, heat transfer oil is used in conjunction with the components installed inside the upper roller 105 and lower roller 108. The swirl plate 106 causes the heat transfer oil to swirl, thereby slowing down the flow rate of the heat transfer oil to a certain extent. The swirl can increase the contact area between the heat transfer oil and the upper roller 105 and the lower roller 108. At the same time, the thermal conductivity of the swirl plate 106 can effectively improve the heating rate of the upper roller 105 and the lower roller 108, and can make the upper roller 105 and the lower roller 108 heated more evenly. Then the heat transfer oil flows back to the heating box 301 through the return pipe 109 to form a circulating heating. Example 2

[0031] Based on Implementation 1, the existing technology still has the problem of inconvenience in disassembling, replacing, and maintaining the roller body. Please refer to... Figures 1-4This embodiment provides a heating roller device for co-extruded polyurethane film coating, which can effectively solve the problem of quick disassembly, replacement and maintenance of the roller body. The heating roller device for co-extruded polyurethane film coating includes a mounting drive device including a mounting frame 201. A mounting plate 202 is mounted in the middle of the mounting frame 201. An asynchronous motor 203 is mounted on the top surface of the left top mounting plate 202. The output end of the asynchronous motor 203 is connected to a main gear 204. A driven gear 205 is meshed with the bottom of the outer surface of the main gear 204. The bottom end of the mounting frame 201 is fixedly connected to the left and right ends of the middle of the top surface of the worktable 1. The mounting plate 202 is detachably mounted in the rectangular mounting hole in the middle of the mounting frame 201 by bolts. The driven gear 205 is connected to the outer surface of the left end of the upper roller 105.

[0032] By installing the drive unit, the mounting plate 202 and the mounting frame 201 are detachably connected by bolts, which facilitates quick disassembly, replacement and maintenance of the roller body.

[0033] When heating the co-extruded polyurethane film coating using the upper roller 105 and lower roller 108, the asynchronous motor 203 is started to drive the main gear 204 to rotate. The outer surface of the main gear 204 meshes with the driven gear 205, and the interior of the driven gear 205 is connected to the left end of the upper roller 105. The interior of the left end of the upper roller 105 is connected to the infusion pipe 103 through the sealed bearing 104. The interior of the right ends of the upper roller 105 and lower roller 108 is connected to both ends of the connecting pipe 107 through the sealed bearing 104. The left end of the lower roller 108 is connected to the return pipe 109 through the sealed bearing 104. This achieves double-sided heating of the co-extruded polyurethane film coating by rotating the upper roller 105 and lower roller 108, resulting in better heating effect. At the same time, the mounting plate 202 is detachably connected to the mounting frame 201 by bolts. The interior of the mounting plate 202 is connected to both ends of the upper roller 105 and lower roller 108 through bearings, which facilitates quick disassembly, replacement and maintenance.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A heating roller device for coating co-extruded polyurethane films, comprising a worktable (1), characterized in that: The workbench (1) is equipped with an installation drive device on top, and a conveying heating device is installed in the middle and left end of the installation drive device. A liquid storage device is provided at the bottom left end of the conveying heating device. The conveying and heating device includes a conveying structure and a heating structure, wherein the conveying structure is installed at the left end of the heating structure; The heating structure includes an upper roller (105), a connecting pipe (107) connected to the right end of the upper roller (105), a lower roller (108) connected to the end of the connecting pipe (107) away from the upper roller (105), a swirl plate (106) installed inside the upper roller (105) and the lower roller (108), and sealed bearings (104) installed inside the left and right ends of the upper roller (105) and the lower roller (108).

2. The heating roller device for co-extruded polyurethane film coating according to claim 1, characterized in that: The conveying structure includes a pump body (101), the output end of the pump body (101) is connected to a liquid extraction pipe (102), the output end of the pump body (101) is connected to a liquid delivery pipe (103), and a return pipe (109) is provided on the right side of the pump body (101).

3. The heating roller device for co-extruded polyurethane film coating according to claim 2, characterized in that: The infusion tube (103) is connected to the left end of the upper roller (105) through a sealed bearing (104). The two ends of the outer surface of the connecting tube (107) are connected to the right end of the upper roller (105) and the lower roller (108) through sealed bearings (104). The left end of the lower roller (108) is connected to the return tube (109) through a sealed bearing (104).

4. The heating roller device for co-extruded polyurethane film coating according to claim 1, characterized in that: The liquid storage device includes a heating box (301), a liquid injection pipe (302) is installed on the middle of the top surface of the heating box (301) near the front end, a partition (303) is fixedly installed inside the heating box (301) near the bottom end, and a heating pipe (304) is installed inside the bottom end of the heating box (301).

5. A heating roller device for co-extruded polyurethane film coating according to claim 4, characterized in that: The top surface of the heating box (301) is detachably connected to the pump body (101). The inner wall of the round hole in the middle of the top surface of the heating box (301) near the left end is connected to the outer surface of the liquid extraction pipe (102). The inner wall of the round hole in the middle of the top surface of the heating box (301) near the right end is connected to the end of the return pipe (109) away from the lower roller (108).

6. A heating roller device for co-extruded polyurethane film coating according to claim 1, characterized in that: The installation drive device includes a mounting frame (201), a mounting plate (202) is mounted in the middle of the mounting frame (201), an asynchronous motor (203) is mounted on the top surface of the mounting plate (202) on the left side, a main gear (204) is connected to the output end of the asynchronous motor (203), and a driven gear (205) is meshed with the bottom of the outer surface of the main gear (204).

7. A heating roller device for co-extruded polyurethane film coating according to claim 6, characterized in that: The bottom end of the mounting bracket (201) is fixedly connected to the left and right ends of the top surface of the workbench (1). The mounting plate (202) is detachably installed in the rectangular mounting hole in the middle of the mounting bracket (201) by bolts. The gear (205) is connected to the outer surface of the left end of the upper roller (105).

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