Heatable printing machine roller
By employing a combination of an electric heater and a spiral heating coil on the printing machine cylinder, the problem of uneven temperature under traditional oil heating methods is solved, enabling precise temperature control during the printing process and improving printing quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional printing machine cylinders use oil heating, which results in slow heating and uneven heat transfer, leading to poor printing quality.
A heating structure combining an electric heater and a spiral heating coil is used, with the electric heater and the heating coil connected by a first wire and a second wire to achieve uniform heating.
It enables precise temperature control during the printing process, improving printing quality and efficiency.
Smart Images
Figure CN224075248U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing machine technology, specifically to a heatable printing machine roller. Background Technology
[0002] In industries such as textiles and dyeing, printing machine cylinders are key components, and their performance directly affects the quality and efficiency of printing. Traditional printing machine cylinders often use oil heating, which has a slow heating rate and cannot quickly reach the required printing temperature, affecting production efficiency. Moreover, during the heating process, uneven heat transfer can easily cause temperature differences on the cylinder surface, resulting in problems such as inconsistent color depth and blurry patterns during printing, seriously affecting product quality.
[0003] Based on the above, this utility model proposes a heatable printing machine roller, which can effectively solve the above problems. Utility Model Content
[0004] This utility model addresses the shortcomings of the existing technology by providing a heatable printing machine roller.
[0005] This utility model is achieved through the following technical solution:
[0006] A heatable printing machine roller includes a bushing and a central shaft. The bushing is fitted onto the central shaft, and a heating structure is provided between the central shaft and the bushing. The heating structure includes an electric heater, a heating coil, a first wire, and a second wire. The heating coil is spirally wound around the outer side of the central shaft. The central shaft has a central hole along its axial direction. Both the first wire and the second wire are installed in the central hole. One end of the first wire is connected to one end of the heating coil, and the other end of the first wire is connected to the anode of the electric heater. One end of the second wire is connected to the other end of the heating coil, and the other end of the second wire is connected to the cathode of the electric heater. Both ends of the central shaft are integrally formed with shaft ends, and the electric heater is fixedly connected to the end of one of the shaft ends.
[0007] According to the above technical solution, as a further preferred technical solution, the two ends of the bushing are respectively threaded with end caps.
[0008] According to the above technical solution, as a further preferred technical solution, the inner side of the end cap is provided with a groove for inserting the central shaft, and the bottom of the groove is connected to a through hole for the shaft head to pass through.
[0009] According to the above technical solution, as a further preferred technical solution, a gear is fixedly connected to the shaft head surface at the end of the central shaft away from the electric heater.
[0010] According to the above technical solution, as a further preferred technical solution, both ends of the central shaft are provided with wire-passing holes for the first or second wire to pass through.
[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0012] This utility model provides a heatable printing machine roller. By spirally winding a heating coil around the outer side of the central shaft and combining it with an electric heater, a first wire, and a second wire to form a heating structure, the roller sleeve can obtain a uniform and stable heating effect, ensuring precise temperature control during the printing process and improving printing quality. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0015] Figure 3 This is a schematic diagram of the end cap structure of this utility model. Detailed Implementation
[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.
[0017] A heatable printing machine roller includes a bushing 1 and a central shaft 2. The bushing 1 is fitted onto the central shaft 2, and a heating structure is provided between the central shaft 2 and the bushing 1. The heating structure includes an electric heater 3, a heating coil 4, a first wire 5, and a second wire 6. The heating coil 4 is spirally wound around the outer side of the central shaft 2. The central shaft 2 has a central hole 21 along the axial direction. The first wire 5 and the second wire 6 are both installed in the central hole 21. One end of the first wire 5 is connected to one end of the heating coil 4, and the other end of the first wire 5 is connected to the anode of the electric heater 3. One end of the second wire 6 is connected to the other end of the heating coil 4, and the other end of the second wire 6 is connected to the cathode of the electric heater 3. The two ends of the central shaft 2 are respectively integrally formed with shaft ends 22, and the electric heater 3 is fixedly connected to one end of one of the shaft ends 22.
[0018] This invention, by spirally winding the heating coil 4 around the outer side of the central shaft 2, and combining it with the electric heater 3, the first wire 5, and the second wire 6 to form a heating structure, enables the bushing 1 to obtain a uniform and stable heating effect, ensuring precise temperature control during the printing process and improving printing quality.
[0019] Furthermore, in another embodiment, the two ends of the bushing 1 are respectively threaded with end caps 7. The inner side of the end cap 7 is provided with a groove 71 for the central shaft 2 to be inserted, and the bottom of the groove 71 is connected to a through hole 72 for the shaft head 22 to pass through.
[0020] By setting the end cap 7, the interaction between the groove 71 and the through hole 72 facilitates the limiting and fixing of the central shaft 2, thereby improving the stability of the roller operation.
[0021] Furthermore, in another embodiment, a gear 8 is fixedly connected to the surface of the shaft head 22 at the end of the central shaft 2 away from the electric heater 3.
[0022] By setting gear 8, it is easy to mesh with an external transmission device, thereby directly driving the roller to rotate and realizing the printing machine operation.
[0023] Furthermore, in another embodiment, both ends of the central shaft 2 are provided with wire-passing holes 23 for the first wire 5 or the second wire 6 to pass through.
[0024] By setting the wire passage hole 23, the first wire 5 or the second wire 6 can be led out from the center hole 21 through the wire passage hole 23, which facilitates the arrangement and fixation of the line.
[0025] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use a heatable printing machine roller of this utility model, and can produce the positive effects described in this utility model.
[0026] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this 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, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.
[0027] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.
Claims
1. A heatable printing press cylinder, characterized by: The utility model provides a heating structure of a shaft sleeve and a center shaft, comprising a shaft sleeve (1) and a center shaft (2), the shaft sleeve (1) is sleeved on the center shaft (2), and a heating structure is arranged between the center shaft (2) and the shaft sleeve (1);The heating structure includes an electric heater (3), a heating coil (4), a first wire (5) and a second wire (6);The heating coil (4) is spirally wound on the outer side of the center shaft (2);The center shaft (2) is provided with a center hole (21) in the axial direction, the first wire (5) and the second wire (6) are both installed in the center hole (21), one end of the first wire (5) is connected with one end of the heating coil (4), and the other end of the first wire (5) is connected with the anode of the electric heater (3);One end of the second wire (6) is connected with the other end of the heating coil (4), and the other end of the second wire (6) is connected with the cathode of the electric heater (3);Both ends of the center shaft (2) are integrally formed with shaft heads (22) respectively, and the electric heater (3) is fixedly connected with the end of one of the shaft heads (22).
2. A heatable printing press cylinder according to claim 1, characterized in that: Both ends of the shaft sleeve (1) are threadedly connected with end covers (7) respectively.
3. A heatable printing press cylinder according to claim 2, characterised in that: The inner side of the end cover (7) is provided with a recess (71) for inserting the center shaft (2), and the bottom of the recess (71) is communicated with a through hole (72) for the shaft head (22) to pass through.
4. A heatable printing press cylinder according to claim 1, characterized in that: The surface of the shaft head (22) of the center shaft (2) away from the electric heater (3) is fixedly connected with a gear (8).
5. A heatable printing press cylinder according to claim 1, characterized in that: The sidewall of both ends of the center shaft (2) is provided with a wire passing hole (23) for the first wire (5) or the second wire (6) to pass through.