Heat transfer printer, kit and heat press

Abstract

The utility model relates to heat transfer printing technical field relates to heat transfer printing heater, kit and hot press, and the heater includes two or more rigid base body, two or more rigid base body all constructs and extends the pressing surface between its both ends, two or more rigid base body abutting side movable coupling enclose and form the hot pressing channel, wherein two base body separate arrangement and the base body free side of not connecting are configured to be driven relatively to adjust the size of hot pressing channel, and each base body is located at least one end side of its pressing surface and is constructed with the end pressing portion extending to the inside along the radial direction, the utility model discloses the end pressing portion of radial extension protruding is set in the end side of pressing surface, can press the transfer object to the inside of the receiving object to the end side of the heater corresponding to the end position of the receiving object, makes the end of transfer object bend to the direction of close receiving object, thereby strengthens the adhesion of transfer object and receiving object in the corner transition position of side to end surface, to improve the heat transfer printing quality of this place.

Description

[0001] Cross-references of prior documents This application claims priority to Chinese application No. CN2024115488488, filed on November 1, 2024, entitled "Heat Transfer Method, Components, Hot Press and System", and Chinese application No. CN2025111125314, filed on August 8, 2025, entitled "Heater, Kit, Apparatus, Hot Press, Automatic Hot Press, System and Method", the contents of which are considered part of the disclosure of this application and are incorporated herein by reference in their entirety. Technical Field

[0002] This utility model relates to the field of heat transfer technology, specifically to heat transfer heaters, kits, and hot presses. Background Technology

[0003] Existing flexible heaters used for heat transfer on cylindrical substrates generally include a flexible heating layer, a flexible substrate, and a thin-walled metal shell bonded together sequentially from the inside out. The heater as a whole has a cylindrical curved structure, and its interior is enclosed to form a hot-pressing channel defined by the inner flexible heating layer on the sidewall. During operation, the substrate loaded with the transfer material is placed in the hot-pressing channel, and the inner diameter of the hot-pressing channel is adjusted by elastic deformation to accommodate substrates of different sizes, ensuring a tight fit between the flexible heating layer, the transfer material, and the substrate. However, the pressing surface of this type of heater is a continuous smooth curved surface extending along the axial direction. Therefore, it is impossible to effectively bend the transfer material towards the end face of the substrate at the end of the hot-pressing channel, resulting in poor heat transfer quality at the corner transition position from the side to the end face of the transfer material and the substrate. Utility Model Content

[0004] The purpose of this patent is to overcome the technical problem that the pressing surface of the existing heater cannot press the transfer material and the substrate tightly at the corner transition position from the side to the end face, resulting in poor heat transfer quality at that position. The patent provides a method to improve the heat transfer quality at that position by setting an end pressing part to enhance the fit at the transition position.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present application provides a heat transfer heater comprising two or more rigid substrates, each of which is configured with a pressing surface extending between its two ends. The adjacent sides of the two or more rigid substrates are movably coupled to form a hot pressing channel. The free sides of the two substrates, which are arranged apart and not connected, are configured to be relatively driven to adjust the size of the hot pressing channel. Each substrate has an end pressing portion extending radially inward on at least one end side of its pressing surface.

[0006] Another embodiment provides a heat transfer heater, including three rigid substrates, each of which is configured with a pressing surface extending between its two ends. The adjacent sides of the three rigid substrates are movably coupled to form a hot pressing channel. The free sides of two substrates located on the side are arranged apart and not connected, and are configured to be driven relative to each other to adjust the size of the hot pressing channel. At least one end of each substrate located on its pressing surface is configured with an end pressing portion extending radially inward.

[0007] Compared with the prior art, the heater of this utility model has a radially extending protruding end pressing part on the end side of the pressing surface. It can press the transfer material against the inside of the substrate at the end position of the substrate on the end side of the heater, so that the end of the transfer material bends towards the substrate. This strengthens the adhesion between the transfer material and the substrate at the corner transition position from the side to the end face, thereby improving the heat transfer quality at that point.

[0008] Furthermore, the end pressing part is constructed as a variable diameter structure with an inner diameter decreasing along the axial direction of the hot pressing channel. Preferably, the end pressing part is constructed as a conical surface that gradually tapers from the inside to the outside along the axial direction of the hot pressing channel, with a taper α degree, α ∈ [5-20°] and a length b, b ∈ [5-15mm]. This variable diameter end pressing part can effectively press the end of the transfer material and make it bend towards the end face of the substrate, resulting in higher heat transfer accuracy.

[0009] As an alternative, the end pressing part is constructed as a raised edge with a height of c, where c ∈ [0.5-1.5 mm]. In this configuration, the substrate is placed inside the raised edge during heat transfer, which facilitates the positioning and assembly of the substrate.

[0010] Furthermore, each substrate has end pressing portions at opposite ends of its pressing surface, thereby improving the heat transfer quality at both ends of the substrate.

[0011] Another aspect of this utility model provides a heating kit, including the aforementioned heat transfer heater and a flexible heat-conducting layer. The flexible heat-conducting layer is used to wrap the substrate s containing the transfer material, and is installed in the heat-pressing channel in a way that allows it to be separably and fits the pressing surface of each substrate. The flexible heat-conducting layer can protect the substrate on the one hand, and improve the fit between it and the pressing surface on the other hand, thereby better transmitting the heat pressure applied by the heating substrate.

[0012] Another aspect of this utility model provides a hot press, including a frame with a heating device mounting area, a heating device, and a drive device. The heating device includes the aforementioned heater, which is mounted in the heating device mounting area. One of the substrates located on the side is directly or indirectly fixedly connected to a first side of the heating device mounting area. The drive device is disposed on a second side of the heating device mounting area and is used to control the movement of another substrate located on the side, thereby opening or closing the hot pressing channel. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the heater of this application; Figure 2 This is a three-dimensional schematic diagram of the heater of this application from another angle; Figure 3 This is a three-dimensional schematic diagram of the heater in the open state of this application; Figure 4 This is a three-dimensional exploded view of the heater of this application; Figure 5 This is a three-dimensional exploded view of the heater of this application from another angle; Figure 6 This is a three-dimensional schematic diagram of the heater of this application with the substrate loaded on it; Figure 7-1 This is a schematic diagram of the heater of this application; Figure 7-2 This is a schematic diagram of the structure of the end pressing part of this application when it is combined with the flexible thermal conductive layer and the substrate; Figure 8 This is a three-dimensional exploded view of the heater in this application when it is loaded with the printing substrate; Figure 9 Exploded perspective view of the flexible thermally conductive layer and the substrate involved in this application; Figure 10 This is a perspective view of the heater of this application equipped with a heat-insulating shell; Figure 11 This is a perspective view of the heater of this application with an insulated outer shell from another angle; Figure 12 This is a three-dimensional schematic diagram of the hot press using this application; Figure 13 This is a three-dimensional schematic diagram of the hot press for removing the heating device according to this application. Detailed Implementation

[0014] See Figures 1 to 5 , Figure 7-1 and Figure 7-2This application generally relates to a heat transfer heater 10, and heating kits, heating devices 1' and hot presses that respectively apply the heat transfer heater 10. The heat transfer heater 10 is used to perform heat transfer on a columnar substrate s. It includes two or more rigid substrates 1. Each substrate 1 has a pressing surface 110 extending between its two ends on its inner side. The adjacent sides of the two or more rigid substrates 1 are movably coupled to form a hot pressing channel 100. That is, the adjacent sides of two adjacent substrates 1 are movably coupled. The free sides 104 of the substrates 1, which are arranged apart and not connected, are configured to be driven relative to each other to adjust the size of the hot pressing channel 100. That is, it can be understood that the inner diameter of the hot pressing channel 100 can be changed by driving the substrate 1 to move through the free side 104, thereby realizing the opening or closing of the hot pressing channel 100. Each substrate 1 has an end pressing portion 105 extending radially inward on at least one end of its pressing surface 110.

[0015] See Figures 1 to 6 , Figure 8 and Figure 9 The working principle of the heat transfer heater 10 is as follows: During operation, the transfer material is wrapped around the surface of the substrate s, and the flexible heat-conducting layer 2 is wrapped around the outside of the substrate s containing the transfer material to obtain a transfer assembly s'. The transfer assembly s' is loaded into the hot pressing channel 100. The inner diameter of the hot pressing channel 100 is reduced by driving the free side 104 of the corresponding substrate 1 until the hot pressing channel 100 is closed (the side of the hot pressing channel 100 is not necessarily closed when it is in the closed state). The pressing surfaces 110 of each substrate 1 are pressed tightly against the transfer material and the substrate s through the flexible heat-conducting layer 2. The substrate 1 generates heat and transfers it to the transfer material and the substrate s through the flexible heat-conducting layer 2. After maintaining the pressing state for a preset time (the time is specifically set according to the material of the transfer material and the power of the heater 10), the hot pressing channel 100 is opened by driving the free side 104 of the substrate, and the transfer assembly s' is taken out to complete the heat transfer.

[0016] See Figure 8 and Figure 9The flexible thermally conductive layer 2 involved in this application uses a flexible material with good thermal conductivity, such as high-temperature thermally conductive silicone. In one specific embodiment, the thermal conductivity of the flexible thermally conductive layer is ≥1. In one specific embodiment, the composition of the flexible thermally conductive layer includes 50-70% thermally conductive material, 20-30% methyl vinyl silicone rubber, 10-20% precipitated silica (precipitated silicon dioxide), 1-3% hydroxyl silicone oil, and 0.1-0.5% internal mold release agent. The thermally conductive material is composed of 60-80% silicone rubber, 20-30% thermally conductive filler, and additives (not more than 5%). The thermally conductive filler can be alumina, boron nitride, graphene, etc., and the additives are flame retardants, anti-aging agents, crosslinking agents, etc. The function of the internal mold release agent is to be added into the interior of the above polymer material system to reduce the adhesion between the product and the mold, thereby reducing the spraying of external mold release agent and improving the demolding efficiency. The main component is an organosilicon polymer, which can form a smooth protective film on the surface of the silicone mold.

[0017] As a specific implementation method, such as Figures 1 to 5 As shown, each substrate 1 is made of thermally conductive material and equipped with a heating element 12. The substrate 1 releases heat through the heating element 12. Specifically, the heating element 12 is arranged in a ring along the edge of the corresponding substrate 1. Of course, in some embodiments, some substrates 1 can be made of thermally conductive material, and heating elements 12 can be arranged on these substrates 1 made of thermally conductive material, while other substrates can be made of non-thermally conductive material and do not need to be equipped with heating elements 12. These substrates 1 made of non-thermally conductive material are responsible for transmitting pressure, while the substrates 1 made of thermally conductive material are responsible for transmitting both heat and pressure. Of course, substrates 1 that do not need to be equipped with heating elements 12 can also be made of thermally conductive material, depending on actual needs. For example, in some cases, since the position and area of ​​the pattern to be transferred on the substrate s are concentrated on some substrates 1, some substrates 1 do not need to be heated, that is, they do not need to be equipped with heating elements 12. In this case, the part of substrate 1 without heating elements 12 can be made of non-thermally conductive material, or it can be uniformly made of thermally conductive material. For the substrate 1 that needs to be heated, a corresponding heating element 12 is configured.

[0018] The difference between the thermally conductive material and the non-thermally conductive material referred to in the rigid matrix 1 of this application lies in the strength of their thermal conductivity, which can be quantified by the thermal conductivity (λ): Thermally conductive materials: such as the following metal or non-metal materials with thermal conductivity ≥1 W / (m·K), such as metals (e.g., copper λ≈401, aluminum λ≈237), high thermal conductivity non-metals (e.g., graphene λ≈1000–5000, aluminum nitride ceramics λ≈170–280, silicon carbide λ≈120–200), etc. Non-thermal conductive materials: such as non-metallic materials with thermal conductivity <0.12 W / (m·K), such as rock wool board (λ<0.04), polyurethane foam (λ≈0.02–0.03), vacuum insulation board (λ≈0.004), etc.

[0019] That is, thermally conductive materials (λ≥1) accelerate heat transfer to dissipate heat, while non-thermally conductive materials (λ<0.12) impede heat transfer to provide insulation.

[0020] The substrate 1 of this application can be made of materials with good thermal conductivity, such as aluminum or its alloys, copper or its alloys, or other metallic materials such as stainless steel or its alloys, cast iron, or other known metallic or non-metallic materials with good thermal conductivity. The substrate 1 can be manufactured using die casting or other existing known processes. In some embodiments, the heating element 12 is a tubular heating element, which is laid on the surface of the corresponding substrate 1 to form a heating substrate. Specifically, it can be integrated with the substrate 1 using a die casting process. The heating substrate formed by this method has good thermal conductivity and better structural stability.

[0021] The substrate 1 of this invention is made of rigid thermally conductive material. Each substrate 1 is connected by movable coupling to form a hot-pressing channel 100. Due to the good structure and stability of the rigid substrate 1, it has a long service life and high reliability, ensuring uniform force applied to the transfer material and the substrate s. Furthermore, the design of separating the substrate 1 from the flexible thermally conductive layer 2 allows for the setting of flexible thermally conductive layers 2 with corresponding sizes, thicknesses, and moduli during heat transfer according to the specifications and requirements of different substrates s. This not only provides strong versatility but also facilitates the production, maintenance, and replacement of the heater 10 and the flexible thermally conductive layer 2. In addition, after the operation is completed, the flexible thermally conductive layer 2, along with the substrate s and the transfer material, detaches from the hot-pressing channel 100, thus separating from the substrate 1. Therefore, it avoids the flexible thermally conductive layer 2 being heated by the substrate 1 after the operation is completed, effectively solving the problem of odor generated by the flexible substrate being heated for a long time due to the integral structure of the flexible substrate and the flexible heating layer in existing flexible heaters.

[0022] See Figures 1 to 5 As a specific implementation of the movable coupling between substrates 1, two adjacent substrates 1 are connected by one or more hinge structures 1.4, such as... Figures 3 to 5 As shown, in this embodiment, three hinge structures 1.4 are provided along the axial direction of the base 1. The one or more hinge structures 1.4 include a hinge shaft 1.42 disposed on the side of one of two adjacent heating bases 1, and a hinge seat 1.41 disposed on the side of the other adjacent to the hinge shaft 1.42. The hinge seat 1.41 is constructed with a concave engagement portion 1.410, which rotatably engages with the hinge shaft 1.42 by inserting into the hinge channel 1.40.

[0023] like Figure 4 As shown, this embodiment also provides a specific implementation of a heater. This heater 10 is configured with three rigid substrates 1, specifically including a first side heating substrate 101, a second side heating substrate 102, and an adjacent heating substrate 103 disposed between the first side heating substrate 101 and the second side heating substrate 102. Each of the three rigid substrates 1 has a pressing surface 110 extending between its two ends. The first side heating substrate 101 and the second side heating substrate 102 are hinged together by an adjacent heating substrate 103 to form a hot-pressing channel 100. The first side heating substrate 101... Three hinge seats 1.41 are axially arranged on the sides of the second side heating base 102 that are adjacent to the adjacent heating base 103. The sides of the adjacent heating base 103 that are adjacent to the first side heating base 101 and the second side heating base 102 are provided with hinge shafts 1.42 that are rotatably coupled to the corresponding hinge seats 1.41. The first side heating base 101 and the second side heating base 102 are respectively constructed with one side of their hinge seats 1.41 to form the aforementioned base free side 104. By driving the base free side 104, the concave joint portion 1.410 can rotate around the corresponding hinge shaft 1.42. The axial direction of this utility model is... Figure 4 The x-direction.

[0024] This invention employs multiple separate rigid substrates 1, which are rotatably connected and enclosed to form a heat-pressing channel 100 using a hinge structure 1.4. The rotatable and adjustable heat-pressing channel 100 avoids the material fatigue failure problem caused by repeated bending of the thin-walled metal shell of traditional flexible heaters, significantly improving the service life and reliability of the heater. The rigid heating substrate 1 ensures a tight fit between the heater and the substrate / transfer material, thereby improving the quality of heat transfer. Furthermore, the engagement method between the concave joint 1.410 and the hinge shaft 1.42 facilitates assembly and disassembly. During connection, simply insert the concave joint 1.410 into the hinge channel 1.40, and then align its opening with the hinge shaft 1.42 for engagement. This open coupling method offers greater freedom and a wider adjustable angle range, not only adapting to more substrate specifications but also facilitating adjustment and disassembly during operation.

[0025] like Figure 7-1 and Figure 7-2 As shown, each substrate 1 of the present invention has an end pressing portion 105 extending radially inward on at least one end side of its pressing surface 110.

[0026] In one specific embodiment, the end pressing portion 105 is configured as a variable diameter structure with an inner diameter decreasing along the axial direction of the hot pressing channel. For example, the end pressing portion 105 is configured as a conical surface that gradually tapers from the inside to the outside along the axial direction of the hot pressing channel 100. The taper of the end pressing portion 105 is α degrees, α ∈ [5-20°]; the length of the conical surface is b, b ∈ [5-15 mm].

[0027] This ensures that the transfer material and the substrate fit together perfectly at the ends during heat transfer, thereby improving the quality of the heat transfer.

[0028] In another specific embodiment, the end pressing part 105 is constructed as a raised edge, i.e., a stepped structure. In practical applications, the substrate s is placed inside the raised edge, wherein the height of the raised edge is c, c∈[0.5-1.5mm].

[0029] Compared with the prior art, the heater 10 of this utility model, by providing a radially extending protruding end pressing portion 105 on the end side of the pressing surface 110, can press the transfer material against the inside of the substrate s at the end position of the heater 10 corresponding to the end position of the substrate s, causing the end of the transfer material to bend towards the substrate s, thereby enhancing the adhesion between the transfer material and the substrate at the corner transition position from the side to the end face, and improving the heat transfer quality at that location. In the presence of the flexible heat-conducting layer 2, the flexible heat-conducting layer 2 at the end position of the substrate s is pressed against the end of the substrate s by the pressing protrusion 105, causing the flexible heat-conducting layer 2 to bend towards the substrate s.

[0030] As an improved implementation, each substrate 1 has an end pressing portion 105 at both ends of its pressing surface 110. This arrangement can ensure the fit between the two ends of the substrate at the corner transition position, thereby further improving the heat transfer quality at both ends of the transfer material.

[0031] See Figure 8 and Figure 9 This embodiment also provides a heating kit, including the heater 10 and the flexible heat-conducting layer 2; the flexible heat-conducting layer 2 is configured to cover the substrate s loaded with the transfer material, and is mounted in the hot pressing channel 100 in a separable and fitable manner with the pressing surface 110 of each substrate 1; the flexible heat-conducting layer 2 is used to transfer the heat and pressure of the heater 10 to the transfer material and the substrate s.

[0032] In some embodiments, the flexible thermally conductive layer 2 is a deployable structure, with its two ends approaching each other when rolled onto the outer surface of the transfer material, forming an internal space for accommodating the substrate s. The two ends of the flexible thermally conductive layer 2 constitute its joint edges. In some embodiments, the joint edges of the flexible thermally conductive layer 2 are provided with a clearance area, that is, the distance between the two ends of the flexible thermally conductive layer 2 constitutes the clearance area. This clearance area is used to avoid protruding structures of the substrate s, such as the handle or the connection part of the handle on the cup.

[0033] See Figures 10 to 13 In another aspect, this application provides a hot press, including a frame 3, a heating device 1', and a drive device 5. The heating device 1' includes the aforementioned heater 10. The frame 3 is configured with a heating device mounting area 300. The heater 10 is mounted in the heating device mounting area 300. The free side 104 of one of the bases 1 located on the side of the heater 10 is directly or indirectly fixedly connected to the first side of the heating device mounting area 300. The drive device 5 is disposed on the second side of the heating device mounting area 300 and is used to control the movement of the other base 1 located on the side, thereby controlling the opening or closing of the hot press channel 100.

[0034] like Figure 1 As shown, in this embodiment using three rigid substrates, the free side 104 of the heater 10 is defined by the free side 104 of the first side heating substrate 101 and the second side heating substrate 102, specifically including... Figure 1 The diagram shows a first free side 106 defined by the free side 104 of the first side heating substrate 101 and a second free side 107 defined by the free side 104 of the second side heating substrate 102. The first free side 106 has a first connecting portion 106', and the second free side 107 has a second connecting portion 107'. The first free side 106 is directly or indirectly fixedly connected to the first side of the heating device mounting area 300. The transmission member 5.3 acts on the second side heating substrate 102. The driving device 5 drives the two free sides 104 to move relative to each other via the transmission member 5.3, thereby adjusting the inner diameter of the hot pressing channel 100 and opening or closing the hot pressing channel 100.

[0035] See Figures 10 to 13 The heating device 1' also includes a heat insulation shell 1.5, which covers the heater 10 and is equipped with a first coupler e1 that is electrically connected to the heater 10.

[0036] The thermal insulation outer shell 1.5 may include two or more thermal insulation sub-shells 1.50 formed by hinges, such as... Figure 10As shown, the heat insulation shell 1.5 includes a first sub-shell 1.51 and a second sub-shell 1.52, which are hinged together by a hinge portion 1.53. At least one hinge portion 1.53 corresponds to the opening side of the thermo-pressing channel 100, that is, to the free side 104 of the two heating substrates 1 that are spaced apart and not connected. The fact that at least one hinge portion corresponds to the opening side of the thermo-pressing channel 100 allows the heat insulation shell 1.5 to change its position and trend with the opening and closing of the thermo-pressing channel 100, thus avoiding interference with the opening and closing of the thermo-pressing channel 100.

[0037] See Figure 11 , Figure 12 ,and Figure 13 The heat-insulating housing 1.5 is equipped with a first coupler mounting base e1'. The first coupler e1 is mounted to the first coupler mounting base e1' in the direction of the heating device mounting area 300 of the heater 10. The frame 3 is equipped with a second coupler e2 that is electrically connected to the circuit of the hot press on the side of the heating device mounting area 300. The second coupler e2 is mounted on the frame 3 with the first coupler e1 facing each other.

[0038] The couplers in this application, namely the first coupler e1 and the second coupler e2, are pluggable structures, typically including a male terminal and a female terminal. Both the male and female terminals include corresponding electrical terminals. The number of electrical terminals can be selected according to actual needs, such as the number of lines, specifically the number of power supply lines and detection lines. Figures 1 to 7-1 In the embodiment shown, when three power supply lines with three detection lines are used, six pairs of electrical terminals are configured.

[0039] like Figure 12 and Figure 13 As shown, the hot press also includes one or more swinging components 4. One end of the swinging component 4 is connected to the lower side of the heating device mounting area 300 of the frame 3 in a swingable manner around the third swing axis R3, and the other end is directly or indirectly fixed to the second connection part 107' of the heater 10, such as... Figure 12 As shown, one or more swing members 4 can be configured in a concave shape on the side adjacent to the heating device 1', similar to the shape trend of the outer surface of the heating device 1', so as to make the product structure more compact.

[0040] like Figure 12 and Figure 13 As shown, in some embodiments, a transmission member 5.3 is also included. The transmission member 5.3 is coupled to the swing member 4. The transmission member 5.3 can be controlled by the driving device 5 to drive the swing member 4 to swing, so as to adjust the size of the hot pressure channel 100 to realize the pressing and opening of the heater 10.

[0041] See Figures 10 to 13The drive unit 5 also includes a drive base 5.1 and an electric actuator 5.2. The drive base 5.1 is oscillatingly connected to the frame 3 around a first swing axis R1. The electric actuator 5.2 is fixedly mounted on the drive base 5.1. The first end of the transmission member 5.3 is oscillatingly connected to the swing member 4 around a second swing axis R2, and its second end is directly or indirectly coupled to the electric actuator 5.2. While the electric actuator 5.2 drives the transmission member 5.3 to move linearly relative to the drive base 5.1, it also drives the drive base 5.1 and the transmission member 5.3 to oscillate adaptively around the first swing axis R1 and the second swing axis R2, thereby driving the second connecting part 107' to move relative to the first connecting part 106', realizing the pressing and opening of the heater 10. The electric actuator 5.2 and the transmission member 5.3 can be coupled through a screw and nut mechanism, or the electric actuator 5.2 can be directly set as a cylinder, using the cylinder's telescopic rod to directly couple with the transmission member 5.3. Alternatively, the electric actuator 5.2 can be configured as a motor to drive the transmission member 5.3 through a gear system and a connecting mechanism.

[0042] Features of the various embodiments in this application may be referenced or combined with each other.

[0043] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A heat transfer heater, characterized in that, The system comprises two or more rigid substrates (1), each of which is constructed with a pressing surface (110) extending between its two ends. The adjacent sides of the two or more rigid substrates (1) are movably coupled to form a hot pressing channel (100). The free sides (104) of the two substrates (1) are arranged apart and not connected, and are configured to be driven relative to each other to adjust the size of the hot pressing channel (100). Each substrate (1) has an end pressing portion (105) extending radially inward on at least one end side of its pressing surface (110).

2. The heat transfer heater according to claim 1, characterized in that, The end pressing part (105) is constructed as a variable diameter structure with an inner diameter that decreases along the axial direction of the hot pressing channel (100).

3. The heat transfer heater according to claim 2, characterized in that, The end pressing portion (105) is constructed as a conical surface that gradually contracts from the inside to the outside along the axial direction of the hot pressing channel (100).

4. The heat transfer heater according to claim 3, characterized in that, The taper of the cone is α, where α ∈ [5-20°]; the length of the cone is b, where b ∈ [5-15 mm].

5. The heat transfer heater according to claim 1, characterized in that, The end pressing part (105) is constructed as a raised edge.

6. The heat transfer heater according to claim 5, characterized in that, The height of the convex edge is c, where c ∈ [0.5-1.5 mm].

7. The heat transfer heater according to claim 1, characterized in that, Each substrate (1) has an end pressing portion (105) at both opposite ends of its pressing surface (110).

8. A heat transfer heater, characterized in that, The system includes three rigid substrates (1), each of which has a pressing surface (110) extending between its two ends. The adjacent sides of the three rigid substrates (1) are movably coupled to form a hot pressing channel (100). The free sides (104) of the two substrates (1) located on the side are arranged apart and not connected, and are configured to be driven relative to each other to adjust the size of the hot pressing channel (100). Each substrate (1) has an end pressing portion (105) extending radially inward at at least one end of its pressing surface (110).

9. A heating kit, characterized in that, include: The heat transfer heater according to any one of claims 1 to 8; A flexible heat-conducting layer (2) is used to wrap the substrate containing the transfer material and is installed in the hot-pressing channel (100) in a way that can be separated from and fits the pressing surface (110) of each substrate (1).

10. A hot press, characterized in that, include: The frame (3) has a heating device mounting area (300); A heating device (1') includes a heater (10) as described in any one of claims 1 to 7, the heater (10) being mounted in the heating device mounting area (300), wherein the free side (104) of a base (1) located on the side is directly or indirectly fixedly connected to a first side of the heating device mounting area (300); A drive unit (5) is disposed on the second side of the heating device mounting area (300), the drive unit (5) being used to control the movement of another base (1) located on the side.

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