Thermoplastic skin covering device for PET (Polyethylene Terephthalate) foam board

Abstract

A thermoplastic skin covering device for a PET (polyethylene terephthalate) foam board relates to the field of production and processing of the PET foam board and comprises a support, and a gluing mechanism, a heating mechanism and a rolling mechanism which are arranged on the support. Wherein the gluing mechanism is used for gluing the attachment surface of the skin and the foaming plate, the heating mechanism is used for heating the glued skin, and the rolling mechanism is used for rolling and coating the skin on the foaming plate. According to the thermoplastic skin covering device for the PET foam board, firstly, the adhesion surface of the skin and the foam board is uniformly coated with glue through the glue coating mechanism, then, the glued skin is heated through the heating mechanism, the flowability and infiltration capacity of glue are enhanced, and finally, the skin is rolled and coated on the foam board through the rolling mechanism. Glue connection between the skin and the foaming plate is more sufficient and tighter, and the quality of the skin is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of PET foam boards, in particular to a thermoplastic skinning device for PET foam boards. Background Art

[0002] As a new, environmentally friendly material, PET foam board offers broad application prospects in numerous fields. Its lightweight, high strength, excellent thermal and sound insulation, and recyclability have attracted significant attention in industries such as construction, automotive, and packaging. In some applications, PET foam board requires a skin treatment. This treatment improves surface flatness and finish, enhancing its aesthetic appeal and meeting decorative requirements. For example, in interior decorative panels, an aesthetically pleasing surface blends seamlessly into the design. Furthermore, it enhances the mechanical properties of PET foam board, such as wear and impact resistance. In automotive interior panel applications, this treatment effectively prevents damage from collisions and wear and tear from daily use.

[0003] At present, in the process of PET board skinning, the contact surface between the skin and the foam board is often directly coated with glue and rolled. However, the fluidity of the glue at room temperature is poor and its penetration is relatively weak, which can easily lead to loose adhesion between the skin and the foam board, thereby reducing the quality of the skin. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] Therefore, the purpose of the present invention is to provide a PET foam board thermoplastic skinning device, so that the glue connection between the skin and the foam board is more fully and tightly connected, thereby improving the quality of the skin.

[0006] To achieve the above-mentioned objectives, the present invention proposes a thermoplastic skinning device for PET foam boards, comprising a bracket, a gluing mechanism, a heating mechanism, and a rolling mechanism disposed on the bracket. The gluing mechanism is used to apply glue to the surface where the skin and the foam board are attached, and the heating mechanism is used to heat the glue-coated skin. The rolling mechanism is used to roll-coat the skin onto the foam board. The gluing mechanism comprises a glue spraying hood and a glue spraying head, wherein the glue spraying hood is disposed on the bracket, and the glue spraying head is disposed inside the skin heating hood. The heating mechanism comprises a skin heating hood and a first heating tube, wherein the skin heating hood is disposed below the glue spraying hood, and the first heating tube is disposed inside the glue spraying hood. The rolling mechanism comprises a rolling roller, which is disposed below the glue spraying hood.

[0007] Furthermore, the skin heating cover is vertically arranged below the gluing mechanism, the first heating tube is arranged at the bottom of the skin heating cover, an air inlet is opened at the bottom of the skin heating cover, and an exhaust port is opened at the top of the skin heating cover.

[0008] Furthermore, a foam plate heating cover is provided at the traveling end of the roller drum, a second heating tube is provided at the bottom of the foam plate heating cover, oblique flanges are provided at both ends of the roller drum, and a roller drive motor for driving the roller drum to rotate is provided on the bracket.

[0009] Furthermore, a roller guide mechanism is provided at the bottom of the bracket, and the roller guide mechanism includes a transverse support provided at the bottom of the bracket, the roller is located in the middle of the transverse support, and an import roller and an export roller are provided at both ends of the transverse support, wherein the import roller is located at the traveling end of the roller roller, a first drive motor for driving the export roller to rotate is provided on the transverse support, and a second drive motor for driving the import roller to rotate is provided on the transverse support.

[0010] Furthermore, a glue spraying seat is provided on the glue spraying cover, a discharge end of the glue spraying seat is connected to the glue spraying head, and a glue spraying pump is provided at the feed end of the glue spraying seat.

[0011] Furthermore, a skin winding roller and a guide roller are provided on the bracket, and the skin winding roller is used to release the skin.

[0012] Beneficial effects: The utility model firstly evenly applies glue to the attachment surface of the skin and the foam board through the gluing mechanism, then heats the glued skin through the heating mechanism to enhance the fluidity and penetration ability of the glue, and finally the rolling mechanism rolls the skin onto the foam board, so that the glue connection between the skin and the foam board is more sufficient and tight, thereby improving the quality of the skin.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic structural diagram of a PET foam board thermoplastic skinning device according to one embodiment of the present invention;

[0016] Figure 2 This is a structural schematic diagram of a PET foam board thermoplastic skinning device according to one embodiment of the utility model from another perspective;

[0017] Figure 3 This is a cross-sectional view of a PET foam board thermoplastic skinning device according to one embodiment of the present invention;

[0018] Figure 4 This is a diagram showing the principle of use of a PET foam board thermoplastic skinning device according to one embodiment of the present invention.

[0019] As shown in the figure: 1. Skin winding roller; 2. Bracket; 3. Guide roller; 4. Glue coating mechanism; 41. Glue spraying seat; 42. Glue spraying cover; 43. Glue spraying head; 44. Glue spraying pump; 5. Heating mechanism; 51. Skin heating cover; 511. Air inlet; 512. Exhaust port; 52. First heating tube; 53. Heating seat; 54. Foam plate heating cover; 541. Second heating tube; 6. Rolling guide mechanism; 61. Second drive motor; 62. Lead-in roller; 63. Horizontal support; 64. Lead-out roller; 65. First drive motor; 7. Rolling mechanism; 71. Rolling drive motor; 72. Rolling roller; 73. Bevel flange; 8. Skin; 9. Foam plate. DETAILED DESCRIPTION

[0020] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] The following describes the PET foam board thermoplastic skinning device according to the embodiment of the present invention in conjunction with the accompanying drawings.

[0022] like Figure 1 、 Figure 2 As shown, the PET foam board thermoplastic skinning device provided by the embodiment of the present invention includes a bracket 2, and a gluing mechanism 4, a heating mechanism 5 and a rolling mechanism 7 arranged on the bracket 2, wherein the gluing mechanism 4 is used to apply glue to the attachment surface of the skin 8 and the foam board 9, the heating mechanism 5 is used to heat the glued skin 8, and the rolling mechanism 7 is used to roll the skin 8 onto the foam board 9.

[0023] The glue coating mechanism 4 includes a glue spraying cover 42 and a glue spraying head 43 , wherein the glue spraying cover 42 is arranged on the bracket 2 , and the glue spraying head 43 is arranged on the inner side of the glue spraying cover 42 .

[0024] The heating mechanism 5 includes a skin heating hood 51 and a first heating tube 52, wherein the skin heating hood 51 is arranged below the glue spraying hood 42, the first heating tube 52 is arranged on the inner side of the skin heating hood 51, and a heating seat 53 for controlling the heating power of the first heating tube 52 is arranged outside the skin heating hood 51.

[0025] The rolling mechanism 7 includes a rolling roller 72 , and the rolling roller 72 is arranged below the glue spraying cover 42 .

[0026] Specifically, when the PET foam board 9 is covered with a skin 8, the skin 8 is first gradually introduced in front of the glue spraying hood 42 and moves downward along the glue spraying hood 42. The glue spraying head 43 sprays glue on the surface of the skin 8. As the skin 8 moves further, the skin 8 after being sprayed with glue enters the heating hood. The first heating tube 52 in the heating hood heats the skin 8 and the glue on its surface together to enhance the fluidity and penetration ability of the glue. After being heated, the skin 8 continues to move downward and is coated on the foam board 9 through the rolling roller 72. After rolling, the glue on the skin 8 penetrates into the foam board 9, so that the skin 8 is firmly adhered to the surface of the foam board 9, completing the skin 8 process of the PET foam board 9.

[0027] In one embodiment of the present invention, Figure 1 and Figure 3 As shown, the skin heating cover 51 is vertically arranged below the gluing mechanism 4, the first heating tube 52 is arranged at the bottom of the skin heating cover 51, an air inlet 511 is opened at the bottom of the skin heating cover 51, and an exhaust port 512 is opened at the top of the skin heating cover 51.

[0028] Specifically, since the first heating tube 52 is arranged at the bottom of the skin heating cover 51, the heat generated by the first heating tube 52 after heating gradually moves upward along the vertical skin heating cover 51, so that the heat distribution in the skin heating cover 51 gradually increases from top to bottom. This design makes the temperature of the skin 8 lower when it initially enters the skin heating cover 51, which preheats the skin 8. The skin 8 slowly moves downward and the temperature gradually increases, preventing the sudden increase in the temperature of the skin 8 from causing thermal stress deformation.

[0029] During the heating process, the evaporated water vapor and hot air accumulated in the skin heating cover 51 are discharged upward through the exhaust port 512, and the air inlet 511 at the bottom of the skin heating cover 51 is replenished with air to keep the gas inside the skin heating cover 51 dry and prevent heat accumulation.

[0030] In one embodiment of the present invention, Figure 1-Figure 3 As shown, a foam plate heating cover 54 is provided at the traveling end of the roller drum 72, a second heating tube 541 is provided at the bottom of the foam plate heating cover 54, an inclined flange 73 is provided at both ends of the roller drum 72, and a roller driving motor 71 for driving the roller drum 72 to rotate is provided on the bracket 2.

[0031] Specifically, in order to reduce the temperature difference between the foam plate 9 and the skin 8, before the foam plate 9 contacts the skin 8, the surface of the foam plate 9 is heated and baked by the second heating tube 541 at the bottom of the foam plate heating cover 54, so that the surface temperature of the foam plate 9 is raised to a temperature close to the surface temperature of the skin 8.

[0032] The roller 72 is driven to rotate by the roller drive motor 71. The inclined flanges 73 at both ends of the roller 72 constrain the skin 8 in the center during the transmission and movement, so that the skin 8 is accurately attached to the foam board 9 and prevents the skin 8 from shifting on both sides.

[0033] In one embodiment of the present invention, Figure 1-Figure 3 As shown, a roller guide mechanism 6 is provided at the bottom of the bracket 2. The roller guide mechanism 6 includes a transverse support 63 provided at the bottom of the bracket 2. A roller 72 is located in the middle of the transverse support 63. An inlet roller 62 and an outlet roller 64 are provided at both ends of the transverse support 63. The inlet roller 62 is located at the travel end of the roller 72. A first drive motor 65 for driving the outlet roller 64 is provided on the transverse support 63. A second drive motor 61 for driving the inlet roller 62 is provided on the transverse support 63.

[0034] Specifically, during the process of covering the skin 8, the first drive motor 65 and the second drive motor 61 respectively drive the lead-in roller 62 and the lead-out roller 64 to rotate, and the rotation of the lead-in roller 62 and the lead-out roller 64 drives the entire device to move. During the movement, the rolling roller 72 wraps the skin 8 around and rolls it to the surface of the foaming board 9, and then covers the skin 8 on the foaming board 9.

[0035] In one embodiment of the present invention, Figure 1-Figure 3 As shown, a glue spraying seat 41 is provided on the glue spraying cover 42 , a discharging end of the glue spraying seat 41 is connected to a glue spraying head 43 , and a glue spraying pump 44 is provided at a feeding end of the glue spraying seat 41 .

[0036] Specifically, during the glue spraying process, the glue spraying pump 44 connects the glue and transfers the glue to the glue spraying seat 41, and the glue spraying seat 41 evenly transfers the glue to each glue spraying head 43, and finally the glue is evenly sprayed on the surface of the skin 8 through the glue spraying head 43.

[0037] In one embodiment of the present invention, Figure 1-Figure 3 As shown, a skin winding roller 1 and a guide roller 3 are provided on the bracket 2 . The skin winding roller 1 is used to release the skin 8 and directly introduce the skin 8 into the rolling drum 72 through the guide roller 3 .

[0038] In order to clearly illustrate the above embodiment, refer to Figures 1-4The specific operating principle of the PET foam board thermoplastic skinning device of the present invention is as follows: When skinning a PET foam board 9, the skin 8 is first wound around the skinning roller 1. The skinning roller 1 releases the skin 8 and directly introduces the skin 8 into the rolling drum 72 via the guide roller 3. The first drive motor 65 and the second drive motor 61 respectively drive the introduction roller 62 and the exit roller 64 to rotate. The rotation of the introduction roller 62 and the exit roller 64 drives the entire device to move. During movement, the rolling drum 72 wraps the skin 8 around and rolls it onto the surface of the foam board 9, thereby forming the skin 8 on the foam board 9.

[0039] During this process, the skin 8 is first introduced in front of the glue spraying hood 42 and moves downward along the glue spraying hood 42. The glue spraying pump 44 connects the glue and evenly transfers the glue to each glue spraying head 43, and the glue is evenly sprayed on the surface of the skin 8 through the glue spraying head 43.

[0040] As the skin 8 moves further downward, the skin 8 after being sprayed with glue enters the heating cover, and the heat generated by the first heating tube 52 gradually moves upward along the vertical skin heating cover 51, so that the heat distribution in the skin heating cover 51 gradually increases from top to bottom. The temperature of the skin 8 is relatively low when it first enters the skin heating cover 51, so the skin 8 is preheated. As the skin 8 slowly moves downward, the temperature gradually increases, so that the temperature of the skin 8 and the glue gradually increases, thereby enhancing the fluidity and penetration ability of the glue.

[0041] After being heated, the skin 8 continues to move downward and enters the rolling drum 72. At the same time, before the foaming plate 9 contacts the skin 8, the surface of the foaming plate 9 is heated and baked through the second heating tube 541 at the bottom of the foaming plate heating cover 54, so that the surface temperature of the foaming plate 9 is raised to a temperature close to the surface temperature of the skin 8.

[0042] Finally, the rolling roller 72 coats the skin 8 on the foam board 9. After rolling, the glue on the skin 8 penetrates into the foam board 9, so that the skin 8 is firmly adhered to the surface of the foam board 9, completing the skin 8 process of the PET foam board 9.

[0043] In summary, the PET foam board thermoplastic skinning device of the embodiment of the utility model first evenly coats the attachment surface of the skin 8 and the foam board 9 with glue through the gluing mechanism 4, then heats the glued skin 8 through the heating mechanism 5 to enhance the fluidity and penetration ability of the glue, and finally the rolling mechanism 7 is used to roll the skin 8 onto the foam board 9, so that the glue connection between the skin 8 and the foam board 9 is more fully and tightly connected, thereby improving the quality of the skin 8.

[0044] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A PET foam board thermoplastic skinning device, characterized in that: The invention comprises a support (2), a gluing mechanism (4), a heating mechanism (5) and a rolling mechanism (7) arranged on the support (2), wherein the gluing mechanism (4) is used to apply glue to the attachment surface of the skin (8) and the foaming plate (9), the heating mechanism (5) is used to heat the glued skin (8), and the rolling mechanism (7) is used to roll the skin (8) onto the foaming plate (9); The glue coating mechanism (4) comprises a glue spraying cover (42) and a glue spraying head (43), wherein the glue spraying cover (42) is arranged on the bracket (2), and the glue spraying head (43) is arranged on the inner side of the glue spraying cover (42); The heating mechanism (5) comprises a skin heating cover (51) and a first heating tube (52), wherein the skin heating cover (51) is arranged below the glue spraying cover (42), and the first heating tube (52) is arranged inside the skin heating cover (51); The rolling mechanism (7) comprises a rolling roller (72), and the rolling roller (72) is arranged below the glue spraying cover (42).

2. The PET foam board thermoplastic skinning device according to claim 1, characterized in that: The skin heating cover (51) is vertically arranged below the glue coating mechanism (4), the first heating tube (52) is arranged at the bottom of the skin heating cover (51), an air inlet (511) is provided at the bottom of the skin heating cover (51), and an exhaust port (512) is provided at the top of the skin heating cover (51).

3. The PET foam board thermoplastic skinning device according to claim 1, characterized in that: A foaming plate heating cover (54) is provided at the traveling end of the rolling drum (72), and a second heating tube (541) is provided at the bottom of the foaming plate heating cover (54); Both ends of the roller (72) are provided with oblique flanges (73), and the bracket (2) is provided with a roller drive motor (71) for driving the roller (72) to rotate.

4. The PET foam board thermoplastic skinning device according to claim 1, characterized in that: A roller guide mechanism (6) is provided at the bottom of the bracket (2), and the roller guide mechanism (6) includes a transverse support (63) provided at the bottom of the bracket (2), the roller (72) is located in the middle of the transverse support (63), and an introduction roller (62) and an outlet roller (64) are provided at both ends of the transverse support (63), wherein the introduction roller (62) is located at the travel end of the roller (72); A first driving motor (65) for driving the export roller (64) to rotate is provided on the transverse support (63), and a second driving motor (61) for driving the import roller (62) to rotate is provided on the transverse support (63).

5. The PET foam board thermoplastic skinning device according to claim 1, characterized in that: A glue spraying seat (41) is provided on the glue spraying cover (42), a discharge end of the glue spraying seat (41) is connected to a glue spraying head (43), and a glue spraying pump (44) is provided at a feed end of the glue spraying seat (41).

6. The PET foam board thermoplastic skinning device according to claim 1, characterized in that: A skin rolling roller (1) and a guide roller (3) are provided on the bracket (2), and the skin rolling roller (1) is used to release the skin (8).

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