Roller printing machine heating roller capable of dissipating heat uniformly
By setting heat-conducting plates and heat-conducting cylinders made of aluminum or copper on the heating roller of the roller printing machine, and by designing the distribution of the heat-conducting plates and filling them with heat-conducting silicone, the problem of poor coating smoothness caused by temperature difference of the roller body is solved, and uniform heat distribution and oil leakage risk are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-03-24
AI Technical Summary
The large temperature difference in the heating roller of the roller printing machine leads to poor coating smoothness. Existing technology alleviates the temperature difference by increasing the flow rate of heat transfer oil, but there is a risk of oil leakage.
The heat-conducting plate and heat-conducting cylinder are made of aluminum or copper. The heat-conducting plate is distributed from sparse to dense from the liquid inlet end to the liquid outlet end of the heating roller. Combined with thermally conductive silicone filling, the heat is evenly distributed.
It improves the uniformity of heat distribution on the roller, reduces temperature differences, avoids oil leakage, and enhances the coating effect.
Smart Images
Figure CN224025448U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to roller printing machine technical field especially relates to a roller printing machine heating roller which heat dissipation is even. BACKGROUND
[0002] Because roller printing machine's even cloth roller and even steel wheel parallel close, cavity oil paint is influenced by air temperature greatly, when coating the paint of big viscosity, poor mobility, often because of air temperature change cannot normal coating, lead to coating when the fluency is poor, delay time, and the coating effect is not ideal.
[0003] In order to solve the temperature difference problem in the prior art, refer to Figure 1 , roller printing machine sets up the chamber that heat conducting oil flows, makes the heated heat conducting oil flow through roller body through circulating pump, realizes the heating of roller body, but because heat conducting oil flows from one end of roller body to the other end, the roller body close to the oil inlet end can absorb most of the heat, and the roller body close to the oil outlet end can only absorb the waste heat of heat conducting oil, resulting in a large temperature difference between the two ends of the roller body. In order to reduce the temperature difference, the prior art can only alleviate by increasing the flow rate of heat conducting oil. The high flow rate of heat conducting oil can cause the liquid pressure to rise, which can cause oil leakage. UTILITY MODEL CONTENTS
[0004] The utility model discloses a kind of roller printing machine heating roller which heat dissipation is even to solve the problems pointed out in the background art.
[0005] To achieve the above object, the utility model adopts the following technical scheme:
[0006] A kind of roller printing machine heating roller which heat dissipation is even, including roller body, end cap located at the both ends of roller body, the end cap has liquid flow channel, first heat conducting cylinder is coaxially installed in the roller body, the first heat conducting cylinder has heat exchange passage, the heat exchange passage two ends are communicated respectively with the liquid flow channel of end cap, a plurality of heat conducting plates capable of heat conduction are installed between the first heat conducting cylinder and the inner wall of roller body, a plurality of the heat conducting plate from heating roller liquid inlet end to liquid discharge end are distributed from sparse to dense.
[0007] The heat conducting plate is circular ring plate with through hole, the inner ring of the heat conducting plate is sleeved on the outer circumference of the first heat conducting cylinder, and the outer ring of the heat conducting plate abuts against the inner circumferential wall of the roller body.
[0008] The second heat conducting cylinder is installed in the roller body, the heat conducting plate is circular ring plate with through hole, the inner ring of the heat conducting plate is fixed on the outer circumference of the first heat conducting cylinder, and the outer ring of the heat conducting plate is fixed on the inner circumferential wall of the second heat conducting cylinder, and the outer circumferential wall of the second heat conducting cylinder abuts against the inner circumferential wall of the roller body.
[0009] The outer circumferential wall of the second heat conducting cylinder and the inner circumferential wall of the roller body are filled with heat conducting silica gel.
[0010] The first heat-conducting cylinder, the heat-conducting plate and the second heat-conducting cylinder are made of the same metal.
[0011] The first heat-conducting cylinder, the heat-conducting plate and the second heat-conducting cylinder are made of aluminum or copper.
[0012] The heating roller of the roller printing machine has the advantages that the heat-conducting plates are distributed from sparse to dense from the liquid inlet end to the liquid outlet end of the heating roller, so that the heat-conducting oil has relatively large heat and relatively low heat conduction effect at one end of the roller body close to the liquid inlet end, and the heat-conducting effect is relatively large and the heat-conducting oil has relatively low heat at one end of the roller body close to the liquid outlet end, and the heat distribution of the whole roller body is better than that of a conventional roller body under the neutralization of the heat conduction effect and the heat of the heat-conducting oil. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a schematic view of the prior structure;
[0014] Figure 2 is a schematic view of the structure of the utility model.
[0015] In the drawing: roller body 1, end cover 2, liquid flow channel 3, first heat-conducting cylinder 4, heat-conducting plate 5, second heat-conducting cylinder 6, heat exchange channel 7. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0017] Referring to Figure 2 A heating roller of a roller printing machine with uniform heat dissipation comprises a roller body 1, end covers 2 located at both ends of the roller body 1, the end covers 2 having liquid flow channels 3, the roller body 1 coaxially having a first heat-conducting cylinder 4 installed therein, the first heat-conducting cylinder 4 having heat exchange channels 7, the heat exchange channels 7 being respectively connected to the liquid flow channels 3 of the end covers 2 at both ends, a plurality of heat-conducting plates 5 capable of conducting heat being installed between the first heat-conducting cylinder 4 and the inner wall of the roller body 1, and the plurality of heat-conducting plates 5 being distributed from sparse to dense from the liquid inlet end to the liquid outlet end of the heating roller.
[0018] When the device works, the flow liquid channel 3 of one end cover 2 serves as the inlet of the heat conducting oil, and the flow liquid channel 3 of the other end cover 2 serves as the outlet of the heat conducting oil. The heat conducting oil passes through the heat exchange channel 7 of the first heat conducting cylinder 4, and then is conducted to the roller body 1 through the first heat conducting cylinder 4 and the heat conducting plate 5. Since the heat conducting plate 5 is distributed from sparse to dense from the inlet to the outlet of the heat conducting oil, the heat conducting oil has a larger heat quantity but a slightly lower heat conduction effect at the end of the roller body 1 close to the inlet of the heat conducting oil, and the heat conducting effect is larger and the heat quantity of the heat conducting oil is slightly lower at the end of the roller body 1 close to the outlet of the heat conducting oil. Under the neutralization of the heat conduction effect and the heat quantity of the heat conducting oil, the heat distribution of the whole roller body 1 is better than that of the traditional roller body.
[0019] As an assembly mode, the heat conducting plate 5 is a circular ring plate with a through hole, the inner ring of the heat conducting plate 5 is sleeved on the outer circumference of the first heat conducting cylinder 4, and the outer ring of the heat conducting plate 5 abuts against the inner circumferential wall of the roller body 1.
[0020] As another assembly mode, the second heat conducting cylinder 6 is installed in the roller body 1, the heat conducting plate 5 is a circular ring plate with a through hole, the inner ring of the heat conducting plate 5 is fixed on the outer circumference of the first heat conducting cylinder 4, the outer ring of the heat conducting plate 5 is fixed on the inner circumferential wall of the second heat conducting cylinder 6, and the outer circumferential wall of the second heat conducting cylinder 6 abuts against the inner circumferential wall of the roller body 1. The heat conducting plate 5 is fixed between the first heat conducting cylinder 4 and the second heat conducting cylinder 6, so that the heat conducting plate 5 can more evenly spread the heat of the first heat conducting cylinder 4 to the second heat conducting cylinder 6, and the heat absorbed by the second heat conducting cylinder 6 is transmitted to the roller body 1.
[0021] The outer circumferential wall of the second heat conducting cylinder 6 and the inner circumferential wall of the roller body 1 are filled with heat conducting silica gel, so as to improve the heat conduction efficiency.
[0022] The first heat conducting cylinder 4, the heat conducting plate 5 and the second heat conducting cylinder 6 are made of the same metal; for example, the first heat conducting cylinder 4, the heat conducting plate 5 and the second heat conducting cylinder 6 are all made of aluminum or copper. The heat conduction efficiency between the same materials is higher.
[0023] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can obtain technical solutions, concepts and designs according to the technical scheme and concept of the present application within the technical range disclosed by the present application, and the obtained technical solutions, concepts and designs should be covered in the protection scope of the present application.
Claims
1. A heat roller of a roller printing machine with uniform heat dissipation, comprising a roller body (1) and end covers (2) at both ends of the roller body (1), the end covers (2) having liquid flow channels (3), characterized in that, The roller body (1) is coaxially provided with a first heat conducting cylinder (4), the first heat conducting cylinder (4) is provided with a heat exchange channel (7), the heat exchange channel (7) is communicated with the liquid flow channel (3) of the end cover (2) at both ends, the first heat conducting cylinder (4) and the inner wall of the roller body (1) are provided with a plurality of heat conducting plates (5) capable of conducting heat, the plurality of heat conducting plates (5) are distributed from sparse to dense from the liquid inlet end to the liquid outlet end of the heating roller, the liquid flow channel (3) of one end cover (2) is the heat conducting oil inlet end, the liquid flow channel (3) of one end cover (2) is the heat conducting oil outlet end, and the heat conducting oil flows through the heat exchange channel (7).
2. The heating roller of the roller printing machine according to claim 1, wherein The heat conducting plate (5) is a circular ring plate with a through hole, the inner ring of the heat conducting plate (5) is sleeved on the outer circumference of the first heat conducting cylinder (4), and the outer ring of the heat conducting plate (5) abuts against the inner circumferential wall of the roller body (1).
3. The heating roller of the roller printing machine according to claim 1, wherein The roller body (1) is provided with a second heat conducting cylinder (6), the heat conducting plate (5) is a circular ring plate with a through hole, the inner ring of the heat conducting plate (5) is fixed on the outer circumference of the first heat conducting cylinder (4), the outer ring of the heat conducting plate (5) is fixed on the inner circumferential wall of the second heat conducting cylinder (6), and the outer circumferential wall of the second heat conducting cylinder (6) abuts against the inner circumferential wall of the roller body (1).
4. The heating roller of the roller printing machine according to claim 3, wherein The outer circumferential wall of the second heat conducting cylinder (6) and the inner circumferential wall of the roller body (1) are filled with heat conducting silica gel.
5. The heating roller of the roller printing machine according to claim 3 or 4, wherein The first heat conducting cylinder (4), the heat conducting plate (5) and the second heat conducting cylinder (6) are made of the same metal.
6. The heated roller of claim 5, wherein, The first heat conducting cylinder (4), the heat conducting plate (5) and the second heat conducting cylinder (6) are made of aluminum or copper.