A high-efficiency heat transfer printing machine

Abstract

This utility model discloses a high-efficiency heat transfer printing machine, belonging to the technical field of heat transfer printing machines. It includes a frame, on which a hot roller is fixedly mounted, and a conveyor belt driven by a motor and arranged around the hot roller. The conveyor belt transports transfer paper and fabric. Supports are fixedly mounted on both sides of the heat transfer paper on the frame. Several guide rollers are rotatably connected to the two supports. Abutment members are provided on the two supports to abut against the folded surface closest to the hot roller. This high-efficiency heat transfer printing machine, due to the several deformation sections formed on the folded surface further blocking hot air, allows the folded surface to better trap hot air blown into the concave side of the deformation section, and the hot air is repeatedly blocked by the convex surface of the deformation section and drawn away by the air guide members, resulting in more efficient preheating and high residual heat reuse efficiency of the hot roller.

Description

Technical Field

[0001] This utility model relates to the field of heat transfer printing machine technology, specifically a high-efficiency heat transfer printing machine. Background Technology

[0002] A heat transfer printing machine uses its heated rollers to drive the transfer paper and fabric to be transferred synchronously over the surface, thereby allowing the pattern on the transfer paper to be stably transferred to the fabric.

[0003] Existing equipment ensures high heat transfer efficiency by maximizing the coverage of the transfer paper on the hot roller, but due to the soft nature of the fabric, there are always arcs on the surface of the hot roller that are not covered by the fabric.

[0004] This causes existing roller heat transfer machines to form an open heat exchange interface with the air when the hot roller rotates, resulting in a large amount of heat energy being dissipated through air convection and a significant reduction in energy efficiency. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the prior art by proposing a high-efficiency heat transfer printing machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency heat transfer printing machine, comprising a frame, a hot roller fixedly mounted on the frame, and a conveyor belt driven by a motor and arranged around the hot roller. The conveyor belt transports transfer paper and fabric. The frame is fixedly mounted with supports on both sides of the heat transfer paper. The two supports are rotatably connected to a plurality of guide rollers for guiding the transfer paper to form multiple folded surfaces on the side of the hot roller away from the conveyor belt. The two supports are provided with abutting members that abut against the folded surface closest to the hot roller, so as to form a plurality of protruding deformation parts along the width direction on the surface of the folded surface. The spaces on both sides of the folded surface are connected by air guide members.

[0007] The present invention is further configured such that: the air guide is an air pump fixedly mounted on the bracket; the spaces on both sides of the folding surface forming the deformable part are respectively a first preheating chamber and a second preheating chamber that are sequentially close to the hot roller; the air inlet of the air pump is connected to the first preheating chamber; and the air outlet of the air pump is connected to the second preheating chamber.

[0008] The present invention is further configured such that: the abutting member is disposed in the second preheating chamber and above the air outlet; a plurality of abutting blocks are fixedly disposed on the side of the abutting member facing the hot roller, which are equidistantly distributed along the width direction of the transfer paper; and the end face of the abutting block abutting the folding surface is a curved surface.

[0009] The present invention is further configured such that: the abutting member is fixed to the bracket by two crossbars, wherein the position of one of the crossbars around the other fixed crossbar is adjustable to adjust the maximum height of the deformed part protruding from the folding surface.

[0010] The present invention is further configured such that the vertical cross-section of the second preheating cavity has a structure that is narrow at the top and wide at the bottom.

[0011] The present invention is further configured such that: the transfer paper has exhaust ports on both sides of the upper end of the second preheating chamber.

[0012] In summary, this utility model has the following beneficial effects: because the several deformation parts formed on the folding surface can further block the hot air, the folding surface can better catch the hot air blown into the concave side of the deformation part, and the hot air is repeatedly blocked by the convex surface of the deformation part and drawn away by the air guide, resulting in more efficient preheating and high waste heat reuse efficiency of the hot roller. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0014] In the diagram: 1. Frame; 2. Fabric; 3. Transfer paper; 301. Deformation part; 4. Release paper; 5. Heated roller; 6. Support; 7. Air pump; 701. Air inlet; 702. Air outlet; 8. Abutting part; 801. Abutting block; 9. First preheating chamber; 10. Second preheating chamber; 11. Exhaust port; 12. Guide roller. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] A high-efficiency heat transfer printing machine, such as Figures 1 to 3 As shown, the machine includes a frame 1, on which a heated roller 5 is fixedly mounted, and a conveyor belt driven by a motor and arranged around the heated roller 5. The conveyor belt transports the transfer paper 3, the fabric 2, and the release paper 4. The specific positional relationship is shown in [reference needed]. Figure 1The frame 1 is fixedly provided with supports 6 on both sides of the heat transfer paper 3. The two supports 6 are rotatably connected with several guide rollers 12 for guiding the transfer paper 3 to form multiple folding surfaces on the side of the hot roller 5 away from the conveyor belt. The two supports 6 are provided with abutting parts 8 that abut against the folding surface closest to the hot roller 5, so as to form several protruding deformation parts 301 along the width direction on the surface of the folding surface. The spaces on both sides of the folding surface are connected by air guides. When the hot air escapes from the hot roller 5 to the side away from the conveyor belt, it will be preheated on both sides of the folding surface formed by the transfer paper 3 closest to the hot roller 5 under the action of the air guides. Among them, since the several deformation parts 301 formed on the folding surface can further block the hot air, the folding surface can better catch the hot air blown into the concave side of the deformation part 301 and the hot air is repeatedly blocked by the convex surface of the deformation part 301 and drawn away by the air guides, resulting in more efficient preheating and high heat reuse efficiency of the hot roller 5.

[0017] like Figures 1 to 3 As shown, specifically, the air guide is an air pump 7 fixedly mounted on the bracket 6. The spaces on both sides of the folded surface forming the deformable part 301 are respectively close to the first preheating chamber 9 and the second preheating chamber 10 of the hot roller 5. The air inlet 701 of the air pump 7 is connected to the first preheating chamber 9, and the air outlet 11 of the air pump 7 is connected to the second preheating chamber 10. In order to allow the gas guided by the air pump 7 to preferentially enter the concave surface of the deformable part 301, the abutment 8 is disposed in the second preheating chamber 10, and is disposed in... Above the air outlet 702, a number of abutting blocks 801 are fixedly arranged on the side of the abutting member 8 facing the hot roller 5, which are equidistantly distributed along the width direction of the transfer paper 3. In order to make the abutting block 801 abut against the folded surface more smoothly, the end face of the abutting block 801 abutting against the folded surface is a rounded curved surface. In order to make more heat contact the folded surface during the conduction process, the vertical section of the second preheating chamber 10 has a structure that is narrow at the top and wide at the bottom. The transfer paper 3 has exhaust ports 11 on both sides of the upper end of the second preheating chamber 10. Considering the bending resistance of different transfer papers 3, the abutment 8 is fixed to the bracket 6 by two crossbars. The position of one crossbar around the other fixed crossbar can be adjusted to adjust the maximum height of the deformable part 301 protruding from the folding surface.

[0018] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0019] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency heat transfer printing machine, comprising a frame (1), a hot roller (5) fixedly mounted on the frame (1), and a conveyor belt driven by a motor and arranged around the hot roller (5), the conveyor belt conveying transfer paper (3) and fabric (2), characterized in that: The frame (1) is fixedly provided with brackets (6) on both sides of the heat transfer paper (3). The two brackets (6) are rotatably connected with a number of guide rollers (12) for guiding the transfer paper (3) to form multiple folding surfaces on the side of the hot roller (5) away from the conveyor belt. The two brackets (6) are provided with abutting parts (8) that abut against the folding surface closest to the hot roller (5) to form a number of protruding deformation parts (301) along the width direction on the surface of the folding surface. The spaces on both sides of the folding surface are connected by air guides.

2. The high-efficiency heat transfer printing machine according to claim 1, characterized in that: The air guide is an air pump (7) fixedly mounted on the bracket (6). The spaces on both sides of the folding surface forming the deformable part (301) are respectively the first preheating chamber (9) and the second preheating chamber (10) that are sequentially close to the hot roller (5). The air inlet (701) of the air pump (7) is connected to the first preheating chamber (9), and the exhaust port (11) of the air pump (7) is connected to the second preheating chamber (10).

3. The high-efficiency heat transfer printing machine according to claim 2, characterized in that: The abutting member (8) is disposed in the second preheating chamber (10) and above the air outlet (702). The abutting member (8) has a number of abutting blocks (801) that are equidistantly distributed along the width direction of the transfer paper (3) on the side facing the hot roller (5). The end face of the abutting block (801) that abuts the folding surface is a curved surface.

4. The high-efficiency heat transfer printing machine according to claim 3, characterized in that: The abutment (8) is fixed to the bracket (6) by two crossbars, one of which is adjustable around the other fixed crossbar to adjust the maximum height of the deformable part (301) protruding from the folding surface.

5. A high-efficiency heat transfer printing machine according to any one of claims 2-4, characterized in that: The second preheating cavity (10) has a vertical cross-section that is narrow at the top and wide at the bottom.

6. The high-efficiency heat transfer printing machine according to claim 5, characterized in that: The transfer paper (3) has exhaust ports (11) on both sides of the upper end of the second preheating chamber (10).

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