Electrically heated burnishing roller

Abstract

The utility model relates to an electric heating burnishing roller, which comprises a burnishing roller shell, left and right shaft heads arranged at both ends of the burnishing roller shell, a heat conduction shell arranged along the inner surface of the burnishing roller shell, a heating mechanism arranged in the heat conduction shell, and the heat conduction shell is fixedly connected with the burnishing roller shell at both ends to form an integrated whole, an end annular groove is arranged on the outer wall of the heat conduction shell near both ends of the heat conduction shell, a plurality of straight grooves are axially arranged on the outer wall of the heat conduction shell and are connected with the end annular grooves, and the annular grooves and the straight grooves are filled with a medium with high heat conduction rate. A plurality of middle annular grooves are arranged on the outer wall of the heat conduction shell and are connected with the straight grooves. The heat conduction shell provided with the annular grooves and the straight grooves makes the burnishing roller have the characteristics that the temperature difference of the roller surface is small and the heating temperature difference of the roller surface is not more than ±1.5 DEG C.

Description

Technical Field

[0001] This utility model relates to a fabric finishing device, and in particular to an electrically heated heat-pressing roller. Background Technology

[0002] The heat-pressing roller is a key component of a heat-pressing machine. Its main function is to uniformly heat the fabric surface and perform preliminary untwisting, combing, and polishing of the fabric fibers, providing a better surface finish for subsequent processing. The heating method of the heat-pressing roller has always been a crucial aspect of structural improvement. Existing electrically heated heat-pressing rollers on the market use electric heating tubes arranged inside the roller shell to directly heat the roller shell. This heating method relies entirely on the uniformity of the resistance wire distribution within the heating tubes. Because the arrangement of the resistance wires has a certain degree of randomness, uneven distribution can occur, leading to uneven temperature distribution in the roller shell, which has certain limitations. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by proposing an electrically heated heat-pressing roller with a very small temperature difference on the roller surface.

[0004] The technical problem to be solved by this utility model is achieved through the following technical solution: an electrically heated heat-pressing roller, comprising a heat-pressing roller shell and a left shaft head and a right shaft head mounted at both ends of the heat-pressing roller shell, characterized in that: a heat-conducting shell is provided along the inner surface of the heat-conducting roller shell, a heating mechanism is provided inside the heat-conducting shell, the two ends of the heat-conducting shell are fixedly connected to the heat-pressing roller shell as a whole, an end annular groove is provided on the outer wall of the heat-conducting shell near each end of the heat-conducting shell, and several straight grooves communicating with the above-mentioned end annular grooves are axially opened on the outer wall of the heat-conducting shell, and the annular grooves and straight grooves are filled with a medium with high thermal conductivity.

[0005] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: several central annular grooves are opened on the outer wall of the heat conduction shell, and the central annular grooves are connected to the straight grooves.

[0006] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: the heating mechanism is an electric heating tube installed inside the heat conduction shell.

[0007] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: the electric heating tube is set on the internal conductive aluminum core.

[0008] Compared with the prior art, this utility model has the characteristics of small temperature difference on the surface of the heating roller and no more than ±1.5℃ by setting up a heat conduction shell with annular groove and straight groove. Attached Figure Description

[0009] Figure 1 This is a simplified structural diagram of the present invention; Figure 2 This is a simplified diagram of the heat-conducting shell structure; Figure 3 This is a schematic diagram of the heating structure. Detailed Implementation

[0010] The specific technical solutions of the present invention are further described below. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, and to facilitate a better understanding of the present invention by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments, and do not constitute a limitation on its rights. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0011] An electrically heated heat-pressing roller includes a heat-pressing roller shell 2 and a left shaft head 1 and a right shaft head 6 mounted at both ends of the heat-pressing roller shell 2. A heat conduction shell 3 is provided along the inner surface of the heat-pressing roller shell 2. A conductive aluminum core 4 is provided inside the heat conduction shell 3. A heating mechanism is provided between the conductive aluminum core 4 and the heat conduction shell 3.

[0012] The heat conduction shell 3 is fixedly connected to the heating roller shell 2 at both ends. Several central annular grooves 8 are formed on the outer wall of the heat conduction shell 3, and these central annular grooves are connected to the straight grooves 11. One is an end annular groove 7, and the other is an end annular groove 9. The central annular groove 8 is located close to the end annular groove 9. Both the central annular groove 8 and the end annular groove 9 are divided into two semi-rings by two partition walls 10. The high thermal conductivity medium is separated into two non-connected paths at the central annular groove and the end annular groove 9 by the partition walls. The two partition walls are closed in a 180° direction, and no single annular groove 8 flows independently.

[0013] The inner surface of the heating roller shell 2 is in close contact with the outer wall of the heat conduction shell 3. The aforementioned annular groove 7, annular groove 9 and straight groove 11 form a closed heat conduction cavity with the inner surface of the heating roller shell 2, and the heat conduction cavity is filled with a medium with high thermal conductivity.

[0014] The heating mechanism adopts an electric heating method. Several electric heating tubes 5 are arranged between the conductive aluminum core 4 and the heat conduction shell 3. The electric heating tubes 5 heat the heat conduction shell 3 so that the temperature difference on the outer surface of the roller shell 2 does not exceed ±1.5℃.

Claims

1. An electrically heated heat-pressing roller, comprising a roller shell and a left shaft head and a right shaft head mounted at both ends of the roller shell, characterized in that: A heat conduction shell is provided along the inner surface of the heating roller shell, and a heating mechanism is provided inside the heat conduction shell. The two ends of the heat conduction shell are fixedly connected to the heating roller shell as a whole. An end annular groove is provided on the outer wall of the heat conduction shell near each end of the heat conduction shell. Several straight grooves are axially opened on the outer wall of the heat conduction shell, which are connected to the end annular grooves. The annular grooves and straight grooves are filled with a medium with high thermal conductivity.

2. The electrically heated heat-pressing roller according to claim 1, characterized in that: The outer wall of the heat conduction shell has several central annular grooves, which are connected to the straight grooves.

3. The electrically heated heat-pressing roller according to claim 1, characterized in that: The heating mechanism is an electric heating tube installed inside the heat conduction shell, and the electric heating tube is installed on the internal conductive aluminum core.

Images