PU film heating and hot melting mechanism

Abstract

The utility model discloses a PU film heating hot melting mechanism, including round roller, heating box, heating subassembly and compaction subassembly, heating box sleeve installs outside round roller, heating subassembly installs in heating box, compaction subassembly installs on one side of heating box. The heating assembly is arranged, a large amount of heat can be prevented from being lost through the heating box, follow-up heating and hot melting of a PU film are facilitated, when a glass fiber net and the PU film are conveyed into the heating box, gas in the heating cavity can be heated through the heating pipe, the gas can be conveyed through the hot air motor, hot air is blown to the PU film through the air outlet, and the PU film is heated through the hot air motor. The heating and hot melting of the PU film are completed, so that the PU film forms a seamless film layer to cover the outer layer of the glass fiber net, the uniform and comprehensive heating and hot melting of the PU film can be ensured under the arrangement of the annular distribution of the air outlets, and the forming effect and quality of the hose are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field related to hose production, in particular to a PU film heating and hot-melting mechanism. Background Art

[0002] CIPP hose is a pipe material used for trenchless repair of underground pipelines. CIPP hose is widely used in trenchless repair of gravity flow pipelines, water supply, gas and other pressure pipelines. CIPP hose is composed of glass fiber and PU film. The PU film is covered on the outer layer of the glass fiber mesh. In order to promote seamless bonding between the glass fiber mesh and the PU film, the PU film needs to be hot-melted, so a PU film heating and hot-melting mechanism is required.

[0003] The existing technology has the following shortcomings: during the production of the existing CIPP hose, the PU film is directly wrapped around the outer layer of the glass fiber mesh without heating and hot-melting the PU. There is a certain gap between the PU film and the glass fiber mesh, which affects the subsequent use of the CIPP hose. At the same time, some mechanisms do not press the PU film after completing the heating and hot-melting of the PU film, resulting in poor bonding between the PU film and the glass fiber mesh, which affects the molding effect of the CIPP hose. Utility Model Content

[0004] The purpose of the present invention is to provide a PU film heating and hot-melting mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PU film heating and hot-melting mechanism, comprising a round roller, a heating box, a heating component and a pressing component, wherein the heating box is sleeved and installed on the outside of the round roller, the heating component is installed in the heating box, and the pressing component is installed on one side of the heating box;

[0006] The heating assembly includes a through hole, a heating chamber, multiple groups of air outlets, multiple groups of hot air motors, a heating pipe and two groups of support frames. The through hole is opened on the surface of the heating box, the heating chamber is opened in the heating box, multiple groups of air outlets are evenly distributed on the inner wall of the through hole, multiple groups of hot air motors are installed at the bottom of the heating box by bolts, the heating pipes are installed in the heating chamber, and two groups of support frames are symmetrically installed at the bottom of the heating box by bolts.

[0007] As a further preferred embodiment of the present technical solution, the through holes are arranged corresponding to the circular rollers, and the multiple groups of air outlets are distributed in a ring shape.

[0008] As a further preferred of the technical solution, the pressing assembly comprises a fixing frame, a fixing plate, a driving motor, a driving wheel, a limiting ring, a discharge port, a limiting track and a transmission part, the fixing frame is installed on one side of the support frame, the fixing plate is welded and installed at the top end of the fixing frame, the driving motor is installed at one side of the top end of the fixing plate through bolts, the driving wheel is installed at the output end of the driving motor, the limiting ring is welded and installed on the side wall of the fixing plate, the discharge port is arranged on the surface of the fixing plate, the limiting track is sleeved and welded outside the limiting ring, and the transmission part is installed on one side of the fixing plate.

[0009] As a further preferred of the technical solution, the transmission part comprises a plurality of limiting wheels, a rotating disc, a transmission chain, two supporting plates, a pressing roller, a tension spring and a plurality of auxiliary wheels, the plurality of limiting wheels are sleeved and slidably installed outside the limiting track, the rotating disc is installed on the side wall of the limiting wheel through bolts, the transmission chain is sleeved and installed outside the driving wheel and the rotating disc, the two supporting plates are installed on the side wall of the rotating disc through bolts, the pressing roller is rotatably installed on the side wall of the supporting plate, the tension spring is installed on the side wall of the supporting plate through bolts, and the plurality of auxiliary wheels are installed on the side wall of the fixing plate through mounting frames.

[0010] As a further preferred of the technical solution, the driving wheel is in a gear structure, the discharge port is arranged in correspondence with the round roller, and the limiting ring is arranged in a concentric manner with the discharge port.

[0011] As a further preferred of the technical solution, the rotating disc is in a gear structure outside, the pressing roller is made of rubber material, the tension spring is arranged in an inclined manner, one end of the tension spring is connected with the rotating disc, the pressing roller is arranged in a concentric manner with the discharge port, and the auxiliary wheel is rotatably arranged with the mounting frame.

[0012] The utility model provides a kind of PU film heating hot melting mechanism, with following beneficial effects:

[0013] (1) the utility model is provided with heating assembly, and heat loss is prevented by using heating box, when glass fiber mesh and PU film are conveyed into heating box, heating tube is used to heat the gas in heating cavity, hot air motor is used to convey gas, and hot air is blown to PU film by air outlet, to complete the heating hot melting of PU film, so that PU film forms seamless film layer on the outer layer of glass fiber mesh, under the setting of the annular distribution of air outlet, it can guarantee the heating hot melting of PU film uniformly and comprehensively, and the forming effect and quality of hose are guaranteed.

[0014] (2) The utility model is provided with a pressing component. After the PU film is heated and hot-melted, the driving motor is used to drive the driving wheel to rotate. Under the drive of the transmission chain, the rotation of the driving wheel drives the rotating disk to rotate. Under the setting of the limiting wheel and the limiting track, the stable rotation of the rotating disk can be guaranteed. The rotation of the rotating disk drives the pressing roller to rotate, which can press the PU film, so that the hot-melted PU film and the glass fiber mesh are more closely fitted, and the formed hose is discharged from the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the heating component structure of the present utility model;

[0017] Figure 3 This is a schematic structural diagram of the compression assembly of the present utility model;

[0018] Figure 4 This is a schematic cross-sectional structural diagram of the compression assembly of the present invention.

[0019] In the figure: 1. round roller; 2. heating box; 3. heating component; 4. pressing component; 5. through hole; 6. heating chamber; 7. air outlet; 8. hot air motor; 9. heating tube; 10. support frame; 11. fixing frame; 12. fixing plate; 13. driving motor; 14. driving wheel; 15. limiting ring; 16. discharge port; 17. limiting track; 18. transmission part; 19. limiting wheel; 20. rotating disk; 21. transmission chain; 22. support plate; 23. pressing roller; 24. tension spring; 25. auxiliary wheel. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1 and Figure 2As shown, in this embodiment, a PU film heating and hot-melting mechanism includes a round roller 1, a heating box 2, a heating component 3 and a pressing component 4. The heating box 2 is installed on the outside of the round roller 1, the heating component 3 is installed in the heating box 2, and the pressing component 4 is installed on one side of the heating box 2. The heating component 3 can heat and hot-melt the PU film, and the pressing component 4 can press and fit the PU film after heating and hot-melting. The heating component 3 includes a through hole 5, a heating cavity 6, multiple groups of air outlets 7, multiple groups of hot air motors 8, a heating pipe 9 and two groups of support frames 10. The through hole 5 is opened on the surface of the heating box 2, the heating cavity 6 is opened in the heating box 2, multiple groups of the air outlets 7 are evenly distributed on the inner wall of the through hole 5, and multiple groups of the hot air motors 8 are opened through the heating box 2. Bolts are installed at the bottom of the heating box 2, and the heating pipe 9 is installed in the heating chamber 6. Two groups of support frames 10 are symmetrically installed at the bottom of the heating box 2 by bolts. The through hole 5 is arranged corresponding to the round roller 1, and multiple groups of air outlets 7 are distributed in a ring shape. The heating box 2 can prevent a large amount of heat loss. When the glass fiber mesh and PU film are transported to the heating box 2, the heating pipe 9 can be used to heat the gas in the heating chamber 6, and the hot air motor 8 can be used to transport the gas. The hot air is blown onto the PU film from the air outlet 7 to complete the heating and hot melting of the PU film, so that the PU film forms a seamless film layer covering the outer layer of the glass fiber mesh. Under the setting of the annular distribution of the air outlet 7, the PU film can be heated and melted evenly and comprehensively, thereby ensuring the molding effect and quality of the hose.

[0022] like Figure 3 and Figure 4As shown, the clamping assembly 4 includes a fixing frame 11, a fixing plate 12, a driving motor 13, a driving wheel 14, a limiting ring 15, a discharge port 16, a limiting rail 17 and a transmission part 18. The fixing frame 11 is installed on one side of the support frame 10, the fixing plate 12 is welded and installed on the top of the fixing frame 11, the driving motor 13 is installed on one side of the top of the fixing plate 12 by bolts, the driving wheel 14 is installed at the output end of the driving motor 13, the limiting ring 15 is welded and installed on the side wall of the fixing plate 12, the discharge port 16 is opened on the surface of the fixing plate 12, and the limiting rail 17 is installed on the transmission part 18. The sleeve is welded on the outside of the limiting ring 15, and the transmission part 18 is installed on one side of the fixed plate 12. The transmission part 18 includes multiple sets of limiting wheels 19, a rotating disk 20, a transmission chain 21, two sets of support plates 22, a pressure roller 23, a tension spring 24 and multiple sets of auxiliary wheels 25. Multiple sets of the limiting wheels 19 are sleeved and slidably installed on the outside of the limiting track 17. The rotating disk 20 is installed on the side wall of the limiting wheel 19 by bolts. The transmission chain 21 is sleeved and installed on the outside of the driving wheel 14 and the rotating disk 20. The two sets of support plates 22 are installed on the side wall of the rotating disk 20 by bolts. The roller 23 is rotatably mounted on the side wall of the support plate 22, the tension spring 24 is mounted on the side wall of the support plate 22 by bolts, and multiple sets of auxiliary wheels 25 are mounted on the side wall of the fixed plate 12 by mounting brackets. The driving wheel 14 is a gear-shaped structure, the discharge port 16 is correspondingly arranged with the round roller 1, the limiting ring 15 is concentrically arranged with the discharge port 16, the outer part of the rotating disk 20 is a gear-shaped structure, the pressing roller 23 is made of rubber material, the tension spring 24 is inclined, one end of the tension spring 24 is connected to the rotating disk 20, the pressing roller 23 is connected to the discharge port 16 Concentrically arranged, the auxiliary wheel 25 and the mounting frame are rotatably arranged. After the heating and hot melting of the PU film is completed, the driving motor 13 is used to drive the driving wheel 14 to rotate. Under the transmission of the transmission chain 21, the rotation of the driving wheel 14 drives the rotating disk 20 to rotate. Under the setting of the limiting wheel 19 and the limiting track 17, the stable rotation of the rotating disk 20 can be guaranteed. The rotation of the rotating disk 20 drives the pressing roller 23 to rotate, which can press the PU film, so that the hot-melt PU film and the glass fiber mesh are more closely fitted. The formed hose is discharged from the discharge port 16, and the tensioning spring 24 can be used to tighten the pressing wheel.

[0023] The utility model provides a PU film heating and hot-melting mechanism, the specific working principle is as follows:

[0024] In use, the woven mechanism and the film covering mechanism are used to weave the glass fiber on the roller 1 and wrap the PU film on the outer layer of the glass fiber web, and the glass fiber web and the PU film are conveyed under the cooperation of the existing conveying mechanism. The heating assembly 3 is provided, and the heating box 2 is used to prevent the heat from being lost in large quantities. When the glass fiber web and the PU film are conveyed into the heating box 2, the heating pipe 9 is used to heat the gas in the heating cavity 6, the hot air motor 8 is used to convey the gas, the hot air is blown to the PU film from the air outlet 7, the heating and melting of the PU film is completed, the PU film forms a seamless film layer on the outer layer of the glass fiber web, the air outlet 7 is arranged in a ring shape, which can ensure that the PU film is uniformly and comprehensively heated and melted, and the forming effect and quality of the hose are ensured. The compression assembly 4 is provided, after the heating and melting of the PU film is completed, the driving motor 13 drives the driving wheel 14 to rotate, the driving wheel 14 drives the rotating disc 20 to rotate under the transmission of the transmission chain 21, the rotating disc 20 stably rotates under the setting of the limiting wheel 19 and the limiting track 17, the rotating disc 20 drives the compression roller 23 to rotate, the PU film is compressed, and the PU film after the heating and melting is more attached to the glass fiber web, and the hose after the forming is discharged from the discharge port 16.

[0025] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A PU film heating and hot-melting mechanism, characterized in that: It comprises a round roller (1), a heating box (2), a heating component (3) and a pressing component (4), wherein the heating box (2) is sleeved and mounted on the outside of the round roller (1), the heating component (3) is mounted inside the heating box (2), and the pressing component (4) is mounted on one side of the heating box (2); The heating assembly (3) comprises a through hole (5), a heating chamber (6), a plurality of air outlets (7), a plurality of hot air motors (8), a heating pipe (9) and two sets of support frames (10), wherein the through hole (5) is provided on the surface of the heating box (2), the heating chamber (6) is provided in the heating box (2), a plurality of air outlets (7) are evenly distributed on the inner wall of the through hole (5), a plurality of hot air motors (8) are installed at the bottom end of the heating box (2) by means of bolts, the heating pipe (9) is installed in the heating chamber (6), and the two sets of support frames (10) are symmetrically installed at the bottom end of the heating box (2) by means of bolts.

2. A PU film heating and hot-melting mechanism according to claim 1, characterized in that: The through holes (5) are arranged corresponding to the circular roller (1), and the plurality of groups of air outlets (7) are distributed in a ring shape.

3. A PU film heating and hot-melting mechanism according to claim 1, characterized in that: The clamping assembly (4) includes a fixing frame (11), a fixing plate (12), a driving motor (13), a driving wheel (14), a limiting ring (15), a discharge port (16), a limiting rail (17) and a transmission part (18), wherein the fixing frame (11) is mounted on one side of the support frame (10), the fixing plate (12) is welded and mounted on the top of the fixing frame (11), the driving motor (13) is mounted on one side of the top of the fixing plate (12) by bolts, the driving wheel (14) is mounted on the output end of the driving motor (13), the limiting ring (15) is welded and mounted on the side wall of the fixing plate (12), the discharge port (16) is opened on the surface of the fixing plate (12), the limiting rail (17) is sleeved and welded on the outside of the limiting ring (15), and the transmission part (18) is mounted on one side of the fixing plate (12).

4. A PU film heating and hot-melting mechanism according to claim 3, characterized in that: The transmission part (18) includes multiple groups of limiting wheels (19), a rotating disk (20), a transmission chain (21), two groups of support plates (22), a pressure roller (23), a tension spring (24) and multiple groups of auxiliary wheels (25), the multiple groups of limiting wheels (19) are slidably mounted on the outside of the limiting track (17), the rotating disk (20) is mounted on the side wall of the limiting wheel (19) by bolts, the transmission chain (21) is mounted on the outside of the driving wheel (14) and the rotating disk (20), the two groups of support plates (22) are mounted on the side wall of the rotating disk (20) by bolts, the pressure roller (23) is rotatably mounted on the side wall of the support plate (22), the tension spring (24) is mounted on the side wall of the support plate (22) by bolts, and the multiple groups of auxiliary wheels (25) are mounted on the side wall of the fixed plate (12) by mounting brackets.

5. The PU film heating and hot-melting mechanism according to claim 3, characterized in that: The driving wheel (14) is a gear-shaped structure, the discharge port (16) is arranged corresponding to the round roller (1), and the limiting ring (15) is arranged concentrically with the discharge port (16).

6. A PU film heating and hot-melting mechanism according to claim 4, characterized in that: The rotating disk (20) has a gear-like structure on the outside, the pressing roller (23) is made of rubber material, the tensioning spring (24) is arranged at an angle, one end of the tensioning spring (24) is connected to the rotating disk (20), the pressing roller (23) is arranged concentrically with the discharge port (16), and the auxiliary wheel (25) is rotatably arranged with the mounting frame.

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