Embossing heating device

Abstract

The utility model discloses an embossing heating device which comprises a heating part and a heating part, each roller extends in the first direction and can rotate with the first direction as the axial direction, in the second direction, the multiple rollers and the heating part are arranged at intervals, in the third direction, the multiple rollers are arranged at intervals, the second direction is perpendicular to the first direction, and the third direction is perpendicular to the first direction; the first supporting pieces are arranged in the third direction, each first supporting piece is arranged in the interval between every two adjacent rolling wheels so as to form a supporting face, and the supporting faces are used for supporting outside artificial leather; and in the first direction, the two ends of each rolling wheel are rotationally connected with the fixing piece, and the two ends of each first supporting piece are connected with the fixing piece. According to the utility model, the first supporting piece is arranged between the two adjacent rollers, and the first supporting piece supports artificial leather, so that the base cloth at the edge is prevented from falling and sinking into a gap between the rollers due to heating and softening.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of artificial leather production, especially a embossing heating device. BACKGROUND

[0002] Leather is widely used in many fields such as automobile and home decoration as a surface decoration material. Common leathers include real leather, PVC (Polyvinyl Chloride) artificial leather, TPO (Thermoplastic Polyolefin) artificial leather, PU (Polyurethane) artificial leather, etc. Real leather is gradually replaced by artificial leather due to its high price and environmental unfriendliness.

[0003] In the production process of leather products, glue is applied on the surface of the leather, and then the base cloth is placed on it. The combination of the two constitutes a complete leather product. Then the leather product can be embossed. Before embossing, the leather product needs to be heated. The heating unit is below a conveying device composed of multiple rollers at intervals. There is a large gap between the two adjacent rollers. However, since the base cloth is used as support at the bottom of the leather, the base cloth will soften when heated and then sag. If this happens, the base cloth at the edge of the leather will easily fall into the gap between the adjacent rollers, resulting in poor heating at this point. Then during the subsequent embossing operation, the edge area of the leather cannot be successfully embossed, resulting in an increase in the rate of defective products.

[0004] In addition, due to the operation of winding and unwinding the base cloth, the base cloth is continuously affected by tension, causing fluctuations in its width. During the leather manufacturing process, it can cause the base cloth on both sides of some leather products to not completely cover the leather. When embossing such leather with base cloth coverage defects, the edge pattern cannot be normally embossed. SUMMARY

[0005] The utility model discloses a embossing heating device, set up first support between two adjacent rollers, and the first support forms support for artificial leather, avoiding the base cloth at the edge from sagging due to softening caused by heating and falling into the gap between the rollers.

[0006] To solve the above technical problems, the embodiment of the utility model discloses a embossing heating device, which comprises:

[0007] a heating part;

[0008] a plurality of rollers, each of the rollers extending along a first direction and being able to rotate about the first direction, the plurality of rollers being spaced apart along a second direction perpendicular to the first direction, and the plurality of rollers being spaced apart along a third direction perpendicular to the first direction;

[0009] a plurality of first support members, each of the first support members being arranged in a space between two adjacent rollers along the third direction to form a support surface for supporting the artificial leather;

[0010] a fixing member, each of the rollers being rotatably connected to the fixing member at two ends thereof along the first direction, and each of the first support members being connected to the fixing member at two ends thereof.

[0011] By arranging the first support member between two adjacent rollers, the first support member can support the artificial leather during the heating process, so that the base cloth at the edge of the artificial leather does not soften and fall into the space between the rollers.

[0012] When the artificial leather uses a light-colored base cloth, the light-colored material has a relatively weak heat absorption capacity. If the first support member is not arranged during the embossing process, the edge of the artificial leather will soften and fall due to insufficient heat absorption, and then fall into the space between the rollers, resulting in that the edge pattern cannot be normally embossed. In the past, operators usually adopted the method of reducing the speed or increasing the embossing heating temperature to solve this problem. However, reducing the speed will reduce the production speed and affect the production capacity of the enterprise, and increasing the embossing heating temperature will increase the energy consumption and production cost. The arrangement of the first support member solves this technical problem. Even if the artificial leather uses a light-colored base cloth, the base cloth at the edge of the artificial leather can also be prevented from softening and falling into the space between the rollers.

[0013] According to another specific embodiment of the present application, along the third direction, a gap exists between the first support member and two adjacent rollers, and along the second direction, the upper surface of each first support member is lower than the upper surface of the adjacent roller, and the distance between the upper surface of each first support member and the upper surface of the adjacent roller is greater than 0 mm and less than 5 mm.

[0014] By adopting the above technical solution, the first support member cannot completely cover the gap between the adjacent rollers. If the first support member completely covers the gap, the first support member will continuously rub against the rollers when the rollers rotate about the first direction, which will easily damage the rollers and cause equipment wear and tear. Therefore, a gap exists between the first support member and the two adjacent rollers.

[0015] However in the processing production process, the artificial leather edge will inevitably appear the phenomenon of leaking skin. Once the leaking skin is rolled into the gap between the first support and the roller, it will cause jamming, causing the equipment to stop running, affecting the production efficiency. Therefore, the upper surface of the first support is arranged to be lower than the upper surface of the adjacent roller, so as to avoid the leaking skin from being rolled into the gap. At the same time, the distance between the upper surface of each first support and the upper surface of the adjacent roller is less than 5mm. If the distance is greater than 5mm, the first support will lose the supporting effect on the artificial leather.

[0016] According to another specific embodiment of the present application, the extension direction of the support surface is parallel to the extension direction of the heating part.

[0017] By adopting the above technical scheme, the extension direction of the support surface is parallel to the extension direction of the heating part, which ensures that the artificial leather placed on the support surface is always parallel to the upper heating part during operation. In this way, the distance between each part of the artificial leather and the heating part is consistent, and the heating is uniform, which not only guarantees the processing quality, but also lays a foundation for the smooth progress of subsequent embossing and other processes.

[0018] According to another specific embodiment of the present application, the heating part is arc-shaped, the support surface is arc-shaped, and the upper surfaces of the plurality of first supports are respectively arc-shaped.

[0019] By adopting the above technical scheme, the support surface is arc-shaped, which is more suitable for the artificial leather. The heating part is arc-shaped, corresponding to the extension direction of the support surface. Therefore, the artificial leather can uniformly receive the heat emitted by the heating part, improving the heating efficiency.

[0020] According to another specific embodiment of the present application, along the third direction, both ends of each first support include an arc-shaped segment, and the shape of the arc-shaped segment is adapted to the shape of the roller.

[0021] According to another specific embodiment of the present application, the embossing and heating device comprises a heat insulation part. Along the first direction, the heat insulation part is respectively arranged at both ends of the plurality of rollers. The heat insulation part can slide along the first direction relative to the plurality of first supports. Along the second direction, the heat insulation part is arranged above the support surface and is spaced apart from the support surface.

[0022] By adopting the above technical scheme, when the artificial leather adopts a dark base cloth, the base cloth at the bottom edge of the artificial leather which is not completely covered may be scorched due to the high embossing temperature, thereby causing damage to the artificial leather or damage to the roller.

[0023] Therefore, the heat insulation part is installed at both ends of the plurality of rollers. The operator can drive the heat insulation part to slide along the first direction until the heat insulation part completely covers the leaked base cloth, so as to shield the base cloth from being heated and scorched.

[0024] According to another specific embodiment of the present application, the heat insulation part comprises:

[0025] a first sliding member;

[0026] a second sliding member, one end of the second sliding member is connected with the first sliding member in a slidable manner along the first direction;

[0027] a heat insulation member, the heat insulation member is connected with the other end of the second sliding member, and is arranged above the support surface and is spaced apart from the support surface along the second direction;

[0028] a driving member, the driving member is connected with the second sliding member to drive the second sliding member to slide along the first direction.

[0029] According to another specific embodiment of the present application, the heat insulation member is arc-shaped, the first sliding member is a sliding rod, and the second sliding member is a sliding sleeve.

[0030] According to another specific embodiment of the present application, the heat insulation part comprises a connecting member, the connecting member extends along the second direction, one of the first support members comprises a first through hole, the first through hole penetrates the first support member along the second direction, one end of the connecting member is connected with the heat insulation member through the first through hole, and the other end of the connecting member is connected with the second sliding member.

[0031] According to another specific embodiment of the present application, the heating part comprises:

[0032] a plurality of heating members, the plurality of heating members are arranged in a spaced apart manner to form a heating surface, the heating surface is arc-shaped, each of the heating members extends along the first direction, and the plurality of heating members are arranged in a spaced apart manner with the plurality of rollers along the second direction;

[0033] a plurality of air suction openings, each of the air suction openings is arranged between two adjacent heating members along the third direction, and the plurality of air suction openings are used to suck away tail gas generated by heating artificial leather from outside. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 A perspective view showing a patterned heating device according to an embodiment of the present application is shown. Figure 1 .

[0035] Figure 2 A partial enlarged view of area A in an embodiment of the present application is shown. Figure 1

[0036] Figure 3 A schematic view showing a roller and a first support member according to an embodiment of the present application is shown.​

[0037] Figure 4 A perspective view of the embossing heating device according to an embodiment of the present application is shown. Figure 2 .

[0038] Figure 5 A partial enlarged view of the middle B region according to an embodiment of the present application is shown. Figure 4

[0039] Explanation of reference numerals

[0040] The embossing heating device 100;

[0041] The heating part 10;

[0042] The heating member 11;

[0043] The roller 20; the upper surface 21 of the roller;

[0044] The first support member 30; the first through hole 31; the arc-shaped section 32; the upper surface 33 of the first support member;

[0045] The heat insulation part 40;

[0046] The second support member 41; the first sliding member 42; the second sliding member 43; the heat insulation member 44; the driving member 45; the connecting member 46;

[0047] The fixing member 50;

[0048] The artificial leather 200. DETAILED DESCRIPTION

[0049] The present application will be described in more detail by the specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. Although the description of the present application will be introduced in combination with the preferred embodiments, this does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application in combination with the embodiments is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0050] It should be noted that in the specification, similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0051] ​In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0052] The terms "first", "second", and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0053] In the description of the present embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.

[0054] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiments of the utility model will be further described in detail below with reference to the drawings.

[0055] Reference Figures 1 to 3 The present application provides a kind of embossing heating device 100, embossing heating device 100 includes heating part 10, nine rollers 20, eight first support 30 and fixing piece 50.

[0056] Each roller 20 extends along the first direction X, and can rotate along the first direction X as the axis, along the second direction Y, nine rollers 20 are spaced apart from heating part 10. Along the third direction Z, nine rollers 20 are spaced apart, the second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to the first direction X.

[0057] Along the third direction Z, each first support 30 is arranged in the interval between adjacent two rollers 20 to form a support surface (not shown in the figure), and the support surface is used to support the artificial leather 200 from the outside.

[0058] Along the first direction X, both ends of each roller 20 are rotatably connected with the fixing piece 50, and both ends of each first support 30 are connected with the fixing piece 50.

[0059] By adopting the technical scheme, the first support 30 is arranged between the two adjacent rollers 20, and the first support 30 supports the artificial leather 200 in the heating process of the artificial leather 200, so that the base fabric at the edge of the artificial leather 200 is prevented from softening and falling due to heat and sinking into the gap between the rollers 20.

[0060] When the artificial leather 200 adopts a light-colored base fabric, the light-colored material has a relatively weak heat absorption capacity, and if the first support 30 is not arranged, the edge of the artificial leather 200 will soften and fall due to insufficient heat absorption in the embossing process, and then sink into the gap between the rollers 20, resulting in that the edge pattern cannot be normally embossed. In the past, operators usually adopted the method of reducing the speed or increasing the embossing heating temperature to solve this problem. However, reducing the speed will reduce the production speed and affect the production capacity of the enterprise, and increasing the embossing heating temperature will increase the energy consumption and production cost. The arrangement of the first support 30 solves this technical problem. Even if the artificial leather 200 adopts a light-colored base fabric, the base fabric at the edge of the artificial leather 200 can also be prevented from softening and falling due to heat and sinking into the gap between the rollers 20.

[0061] It should be noted that the number of rollers 20 is not specifically limited in the embodiments of the present application, for example, in other possible embodiments, the number of rollers 20 can be eight, ten, eleven, etc. The number of first supports 30 is not specifically limited in the embodiments of the present application, for example, in other possible embodiments, the number of first supports 30 can be eight, nine, ten, etc.

[0062] In some possible embodiments, referring to Figures 1 to 3 , along the third direction Z, there is a gap between the first support 30 and the two adjacent rollers 20, and along the second direction Y, the upper surface 33 of each first support is lower than the upper surface 21 of the adjacent roller, and the distance d1 between the upper surface 33 of each first support and the upper surface 21 of the adjacent roller is greater than 0 mm and less than 5 mm.

[0063] By adopting the technical scheme, the first support 30 cannot completely cover the gap between the adjacent rollers 20, and if it is completely covered, the first support 30 and the roller 20 will continuously rub when the roller 20 rotates around the first direction X as the axis, which is easy to damage the roller 20 and cause equipment wear and tear. Therefore, there is a gap between the first support 30 and the two adjacent rollers 20.

[0064] However, in the production process, the edge of the artificial leather 200 will inevitably have a phenomenon of skin missing. Once the missing skin is rolled into the gap between the roller 20 and the first support 30, it will cause jamming, causing the equipment to stop running and affecting production efficiency. Therefore, the upper surface 33 of the first support is set to be lower than the upper surface 21 of the adjacent roller, so as to avoid the missing skin from being rolled into the gap. At the same time, the distance d1 between the upper surface 33 of each first support and the upper surface 21 of the adjacent roller is less than 5 mm. If the distance d1 is greater than 5 mm, the first support 30 will lose its supporting effect on the artificial leather 200.

[0065] It should be noted that the distance d1 between the upper surface 33 of each first support and the upper surface 21 of the adjacent roller is not specifically limited in the embodiments of the present application. For example, in other possible embodiments, the distance d1 between the upper surface 33 of each first support and the upper surface 21 of the adjacent roller can be 0.22 mm, 0.3 mm, 0.47 mm, etc.

[0066] In some possible embodiments, with reference to Figures 1 to 3 , the extension direction of the support surface is parallel to the extension direction of the heating part 10.

[0067] With the above technical solution, the extension direction of the support surface is parallel to the extension direction of the heating part 10, which ensures that the artificial leather 200 placed on the support surface is always parallel to the upper heating part 10 during operation. In this way, the distance between each part of the artificial leather 200 and the heating part 10 is consistent, and the heating is uniform, which not only guarantees the processing quality, but also lays a foundation for the smooth progress of subsequent embossing and other processes.

[0068] In some possible embodiments, the heating part 10 is arc-shaped, the support surface is arc-shaped, and the upper surfaces 33 of the plurality of first supports are respectively arc-shaped.

[0069] With the above technical solution, the support surface is arc-shaped, which is more easily attached to the artificial leather 200, and the heating part 10 is arc-shaped, corresponding to the extension direction of the support surface. Therefore, the artificial leather 200 can uniformly receive the heat emitted by the heating part 10, improving the heating efficiency.

[0070] It should be noted that the shape of the heating part 10 is not specifically limited in the embodiments of the present application. For example, in other possible embodiments, the shape of the heating part 10 can be planar, the support surface can be planar, and the plurality of first supports 30 can be respectively planar.

[0071] In some possible embodiments, along the third direction Z, the two ends of each first support 30 include an arc-shaped segment 32, and the shape of the arc-shaped segment 32 is adapted to the shape of the roller 20.

[0072] In some possible embodiments, with reference toFigure 1 、 Figure 4 and Figure 5 The embossing heating device 100 comprises heat insulation parts 40, which are respectively arranged at two ends of the plurality of rollers 20 along the first direction X. The heat insulation parts 40 are capable of sliding along the first direction X relative to the plurality of first supporting parts 30, and are arranged above the supporting surface along the second direction Y and are spaced apart from the supporting surface.

[0073] With the above technical solution, when the artificial leather 200 adopts a dark base cloth, the base cloth at the bottom edge of the artificial leather 200 which is not completely covered may be scorched due to too high embossing temperature, thereby causing damage to the artificial leather 200 or damage to the roller 20.

[0074] Therefore, the heat insulation parts 40 are arranged at two ends of the plurality of rollers 20, and an operator can drive the heat insulation parts 40 to slide along the first direction X until the heat insulation parts 40 completely cover the exposed base cloth, thereby preventing the base cloth from being scorched by heat.

[0075] In some possible embodiments, referring to Figure 1 、 Figure 4 and Figure 5 The heat insulation part 40 comprises a second supporting part 41, a first sliding part 42, a second sliding part 43, a heat insulation part 44, and a driving part 45.

[0076] The second supporting part 41 is a cuboid, and the two ends of the first sliding part 42 are respectively connected to the second supporting part 41 along the first direction X. One end of the second sliding part 43 is connected to the first sliding part 42 in a slidable manner along the first direction X. The heat insulation part 44 is connected to the other end of the second sliding part 43, and is arranged above the supporting surface along the second direction Y and is spaced apart from the supporting surface. The driving part 45 is connected to the second sliding part 43 to drive the second sliding part 43 to slide along the first direction X.

[0077] It should be noted that the specific structure of the driving part 45 is not specifically limited in the embodiments of the present application, for example, in other possible embodiments, the driving part 45 can be a hydraulic cylinder, a motor, a gear, etc. The shape of the second supporting part 41 is not specifically limited in the embodiments of the present application, for example, in other possible embodiments, the shape of the second supporting part 41 can be a cylinder, a triangular prism, etc.

[0078] In some possible embodiments, referring to Figure 1 、 Figure 4 and Figure 5 The heat insulation part 44 is arc-shaped.

[0079] It should be noted that the shape of the heat insulation member 44 is not limited in the embodiments of the present application. For example, in other possible embodiments, the heat insulation member 44 can be planar, irregularly shaped, or the like.

[0080] In some possible embodiments, referring to Figure 1 , Figure 4 and Figure 5 , the heat insulation part 40 comprises a connecting member 46, the connecting member 46 is a cuboid, and the connecting member 46 extends along the second direction Y. One of the first support members 30 comprises a first through hole 31, the first through hole 31 is rectangular, and the first through hole 31 penetrates the first support member 30 along the second direction Y. One end of the connecting member 46 is connected to the heat insulation member 44 by penetrating the first through hole 31, and the other end of the connecting member 46 is connected to the second sliding member 43.

[0081] It should be noted that the shape of the connecting member 46 is not limited in the embodiments of the present application. For example, in other possible embodiments, the connecting member 46 can be a cylinder, a triangular prism, or the like. The shape of the first through hole 31 is not limited in the embodiments of the present application. For example, in other possible embodiments, the first through hole 31 can be square, elliptical, or the like.

[0082] In some possible embodiments, referring to Figure 1 , Figure 4 and Figure 5 , the first sliding member 42 is a slide bar, and the second sliding member 43 is a slide sleeve.

[0083] It should be noted that the specific structures of the first sliding member 42 and the second sliding member 43 are not limited in the embodiments of the present application. For example, in other possible embodiments, the specific structures of the first sliding member 42 and the second sliding member 43 can be a slide rail and a slide block, a slide groove and a slide plate, or the like, respectively.

[0084] In some possible embodiments, referring to Figure 1 , Figure 4 and Figure 5 , the heating part 10 comprises a plurality of heating members 11 and a plurality of air suction ports (not shown in the figure), the plurality of heating members 11 are arranged at intervals to form a heating surface (not shown in the figure), each heating member 11 extends along the first direction X, and the plurality of heating members 11 are arranged at intervals with the plurality of rollers 20 along the second direction Y. Along the third direction Z, each air suction port is arranged between two adjacent heating members 11, and the plurality of air suction ports are used to suck away the tail gas generated by heating the artificial leather 200 from the outside.

[0085] According to the technical scheme, in combination with the foregoing, the support surface is arc-shaped, so that the artificial leather 200 placed on the support surface is also arc-shaped, and the artificial leather 200 in the arc-shaped state can gather the tail gas generated by heating, so that the exhaust port can exhaust the tail gas, and the tail gas is prevented from leaking into the workshop.

[0086] In some possible embodiments, with reference to Figure 1 , Figure 4 and Figure 5 Figure 1 Figure 4 Figure 5 , the heating surface is arc-shaped, and in other possible embodiments, the heating surface can also be planar, and the embodiments of the application are not specifically limited.

[0087] Although the present application has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood that the above description is a further illustration of the application and should not be construed as limiting the application. Those skilled in the art can make various changes and modifications to the form and details of the application without departing from the spirit and scope of the application.

Claims

1. An embossing heating device, characterized in that, The embossing heating device comprises: a heating part; a plurality of rollers, each of which extends along a first direction and is capable of rotating about the first direction, is arranged apart from the heating part along a second direction perpendicular to the first direction, and is arranged apart from adjacent rollers along a third direction perpendicular to the first direction; a plurality of first supporting members, each of which is arranged in a space between adjacent rollers along the third direction to form a supporting surface for supporting artificial leather from outside; a fixing member, each end of each roller is rotatably connected to the fixing member along the first direction, and each end of each first supporting member is connected to the fixing member.

2. The embossing heating device of claim 1, wherein There is a gap between each first supporting member and adjacent rollers along the third direction, and an upper surface of each first supporting member is lower than an upper surface of adjacent rollers along the second direction, and the distance between the upper surface of each first supporting member and the upper surface of adjacent rollers is greater than 0 mm and less than 5 mm.

3. The embossing heating device of claim 1, wherein The extending direction of the supporting surface is parallel to the extending direction of the heating part.

4. The embossing heating device of claim 3, wherein The heating part is arc-shaped, the supporting surface is arc-shaped, and the upper surface of each first supporting member is arc-shaped.

5. The embossing heating device of claim 1, wherein Each end of each first supporting member comprises an arc-shaped segment along the third direction, and the shape of the arc-shaped segment is adapted to the shape of the roller.

6. The embossing heating device of claim 1, wherein The embossing heating device comprises a heat insulation part, which is arranged at each end of each roller along the first direction and is capable of sliding relative to the first supporting members along the first direction, and is arranged above the supporting surface and is arranged apart from the supporting surface along the second direction.

7. The embossing heating device of claim 6, wherein The heat insulation part comprises: a first sliding member; a second sliding member, one end of which is slidably connected to the first sliding member along the first direction; a heat insulation member, which is connected to the other end of the second sliding member and is arranged above the supporting surface and is arranged apart from the supporting surface along the second direction; a driving member, which is connected to the second sliding member to drive the second sliding member to slide along the first direction.

8. The embossing heating device of claim 7, wherein The heat insulation member is arc-shaped, the first sliding member is a slide rod, and the second sliding member is a slide sleeve.

9. The embossing heating device of claim 7, wherein The heat insulation part comprises a connecting member extending along the second direction, one of the first supporting members comprises a first through hole penetrating the first supporting member along the second direction, one end of the connecting member is connected to the heat insulation member through the first through hole, and the other end of the connecting member is connected to the second sliding member.

10. The embossing heating device of claim 1, wherein The heating part comprises: a plurality of heating members, which are arranged apart to form a heating surface, the heating surface is arc-shaped, each of the heating members extends along the first direction, and the plurality of heating members are arranged apart from the plurality of rollers along the second direction; A plurality of air suction ports are arranged between two adjacent heating elements in the third direction, and are used to suck the exhaust gas generated by heating the artificial leather.

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