Heating conveying roller for coating machine

Abstract

The utility model provides a heating conveying roller for a coating machine, and relates to the technical field of heating conveying rollers, the heating conveying roller comprises a conveying outer sleeve shell and a conveying roller inner cylinder, a heat conduction oil cavity with an annular structure is formed between the conveying outer sleeve shell and the conveying roller inner cylinder in a spaced mode, and heat in heat conduction oil is transmitted to the conveying outer sleeve shell through the heat conduction oil cavity. The conveying outer sleeve shell can heat and dry cloth conveyed to pass through the conveying outer sleeve shell and paint on the cloth. A circle of long-strip-shaped guide plate is welded to the circumferential outer wall of the conveying roller inner cylinder in a surrounding mode, and the outer side end of the long-strip-shaped guide plate and the inner wall of the conveying outer sleeve shell are welded and fixed together. The circle of long-strip guide plate divides the heat conduction oil cavity of the annular structure into a circle of heat conduction oil channel which is roundabout and continuously bent. The heat conduction oil channel which is roundabout and continuously bent is longer than a straight-through type heat conduction oil channel, so that the circulation time of the heat conduction oil in the heat conduction oil cavity can be prolonged, and the utilization rate of heat in the heat conduction medium and the drying effect on the cloth can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating conveying rollers, in particular to a heating conveying roller for a coating machine. Background Art

[0002] A roller coater is a device that uses a coating roller to apply paint to a coating surface. In order to accelerate the drying of the paint on the coating surface, a drying oven is often used to dry the coating surface. However, in the absence of pre-drying or auxiliary drying, simply relying on a drying oven for heating and drying will cause the drying oven to be long and large in volume. Therefore, it is very necessary to pre-dry or auxiliary dry the coating surface. The device for pre-drying or auxiliary drying includes a heated conveying roller, which can pre-assistively heat and dry the fabric during the conveying process.

[0003] In the existing heated conveyor rollers, the heat-conducting medium mostly flows straight through inside, resulting in a short flow path and circulation time of the heat-conducting medium. As a result, the heat in the heat-conducting medium does not have enough time to be fully dissipated and transferred to the outer surface of the conveyor roller, affecting the utilization rate of the heat in the heat-conducting medium and the drying effect on the fabric. Summary of the invention

[0004] In view of this, the utility model provides a heating conveyor roller for a coating machine to solve the problem that the heat-conducting medium mostly flows straight through inside the conveyor roller, resulting in a short flow path and circulation time of the heat-conducting medium, so that the heat in the heat-conducting medium does not have enough time to fully dissipate and transfer to the outer surface of the conveyor roller, affecting the utilization rate of the heat in the heat-conducting medium and the drying effect on the cloth.

[0005] The technical solution proposed by the utility model is: a heating conveyor roller for a coating machine, specifically comprising a conveyor outer shell and a conveyor roller inner cylinder, the conveyor outer shell and the conveyor roller inner cylinder are concentrically inserted and matched, and a heat-conducting oil cavity with an annular structure is formed between the conveyor outer shell and the conveyor roller inner cylinder, the heat in the heat-conducting oil is transferred to the conveyor outer shell through the heat-conducting oil cavity, and the conveyor outer shell can heat and dry the cloth transmitted through it and the coating on the cloth; a circle of long guide plates is welded around the circumferential outer wall of the conveyor roller inner cylinder, and the outer end of the long guide plate is welded to the inner wall of the conveyor outer shell. The long guide plate is in a wave-like continuous bending structure, and a circle of long guide plates divides the heat transfer oil chamber of the annular structure into a circle of heat transfer oil channels in a circuitous and continuously curved manner. The left circle of oil distribution short pipes is used to divert and transport the heat transfer oil in the left inlet and outlet oil pipes to the left annular oil distribution chamber, and the right circle of oil distribution short pipes is used to divert and discharge the heat transfer oil in the right annular oil distribution chamber to the right inlet and outlet oil pipes. The left annular oil distribution chamber is used to distribute unused heat transfer oil in a circle of heat transfer oil channels, and the right annular oil distribution chamber is used to gather and collect the used heat transfer oil together.

[0006] Two oil inlet and outlet pipes are symmetrically welded to the front and rear ends of the conveying outer shell, and the length of a circle of long guide plates is equal to the length of the inner cylinder of the conveying roller.

[0007] further,

[0008] The head ends of the two oil inlet and outlet pipes are rotatably connected to a rotary joint, and the two rotary joints are respectively connected to an external heat source circulation supply system for inputting and discharging heat transfer oil.

[0009] further,

[0010] The tail ends of the two oil inlet and outlet pipes are welded with a circle of oil distribution short pipes, and the outer circles of the two circles of oil distribution short pipes are welded with an annular oil distribution ring.

[0011] further,

[0012] A circle of the oil distribution short pipes is connected with the annular oil distribution ring.

[0013] further,

[0014] Two annular sealing plates are symmetrically welded at the front and rear ends of the conveying outer casing, and the inner rings of the two annular sealing plates are welded and fixed to the two annular oil distribution rings.

[0015] further,

[0016] Two annular oil distribution cavities are formed between the front and rear end portions of the conveying outer shell and the two annular oil distribution rings, and the front and rear openings of a circle of heat transfer oil channels are connected to the two annular oil distribution cavities.

[0017] further,

[0018] The inner wall of the inner cylinder of the conveyor roller is fixed with rubber-plastic thermal insulation cotton by Velcro, and the rubber-plastic thermal insulation cotton can cover and insulate the inner wall of the inner cylinder of the conveyor roller, thereby preventing the heat energy in the heat transfer oil from being directly lost through the inner ring axial channel of the inner cylinder of the conveyor roller, thereby reducing the waste of heat during use.

[0019] The utility model provides a heating conveying roller for a coating machine, which has the following beneficial effects:

[0020] When the utility model is in use, the length of the circuitous and continuously curved heat-conducting oil channel is longer than that of the straight heat-conducting oil channel, which can prolong the circulation time of the heat-conducting oil in the heat-conducting oil cavity, so that the heat-conducting medium can have enough time to fully dissipate the heat contained therein and transfer it to the outer shell of the conveying jacket, which helps to improve the utilization rate of the heat in the heat-conducting medium and the drying effect on the cloth.

[0021] In addition, the rubber-plastic thermal insulation cotton can cover and insulate the inner wall of the inner cylinder of the conveyor roller, preventing the heat energy in the heat transfer oil from being directly dissipated through the inner ring axial channel of the inner cylinder of the conveyor roller, reducing the waste of heat during use, and helping to further improve the utilization rate of the heat in the heat transfer medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0023] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0024] In the attached picture:

[0025] Figure 1 The overall structure schematic diagram of the utility model is shown;

[0026] Figure 2 The schematic diagram of the cutaway structure of the left and right ends of the delivery outer shell of the utility model is shown;

[0027] Figure 3 The figure shows the schematic diagram of the inner side structure of the delivery outer shell of the utility model;

[0028] Figure 4 A schematic diagram showing the disassembly and assembly state of the inlet and outlet oil pipes of the utility model is shown;

[0029] Figure 5 The schematic diagram of the structure of the inner cylinder of the conveying roller of the utility model is shown;

[0030] Figure 6 The schematic diagram of the structure of the long guide plate of the utility model is shown;

[0031] Reference numerals list

[0032] 1. Conveying outer casing; 101. Annular sealing plate;

[0033] 2. Oil inlet and outlet pipes; 201. Rotary joint; 202. Oil distribution short pipe; 203. Annular oil distribution ring;

[0034] 3. Inner cylinder of conveying roller; 301. Long guide plate; 302. Rubber-plastic thermal insulation cotton. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Example 1, please refer to Figures 1 to 6 :

[0037] The utility model proposes a heating conveyor roller for a coating machine, comprising a conveyor outer shell 1 and a conveyor roller inner cylinder 3, wherein the conveyor outer shell 1 and the conveyor roller inner cylinder 3 are concentrically sleeved and matched, and a heat-conducting oil cavity of an annular structure is formed between the conveyor outer shell 1 and the conveyor roller inner cylinder 3, and the heat in the heat-conducting oil is transferred to the conveyor outer shell 1 through the heat-conducting oil cavity, and the conveyor outer shell 1 can heat and dry the cloth transmitted through it and the coating on the cloth;

[0038] A circle of long guide plates 301 is welded around the circumferential outer wall of the inner cylinder 3 of the conveying roller, and the outer end of the long guide plate 301 is welded and fixed to the inner wall of the conveying outer shell 1; the long guide plate 301 is a wavy continuous bending structure, and a circle of long guide plates 301 divides the heat-conducting oil cavity of the annular structure into a circle of circuitous and continuously curved heat-conducting oil channels, and the length of the circuitous and continuously curved heat-conducting oil channels is longer than that of the straight-through heat-conducting oil channels, which can extend the circulation time of the heat-conducting oil in the heat-conducting oil cavity, so that the heat-conducting medium can have enough time to fully dissipate the heat contained therein and transfer it to the conveying outer shell 1, which helps to improve the utilization rate of the heat in the heat-conducting medium and the drying effect on the cloth;

[0039] Two oil inlet and outlet pipes 2 are symmetrically welded to the front and rear ends of the conveying outer casing 1, and the length of a circle of long guide plates 301 is equal to the length of the conveying roller inner cylinder 3.

[0040] Preferred

[0041] The head ends of the two oil inlet and outlet pipes 2 are both rotatably connected to a rotary joint 201, and the two rotary joints 201 are respectively connected to an external heat source circulation supply system for inputting and discharging heat transfer oil.

[0042] Preferred

[0043] The tail ends of the two oil inlet and outlet pipes 2 are welded with a circle of oil distribution short pipes 202, and the outer circles of the two circles of oil distribution short pipes 202 are welded with an annular oil distribution ring 203. The left circle of oil distribution short pipes 202 is used to divert the heat transfer oil in the left inlet and outlet pipes 2 to the annular oil distribution cavity on the left, and the right circle of oil distribution short pipes 202 is used to divert the heat transfer oil in the right annular oil distribution cavity to the right inlet and outlet pipes 2.

[0044] Preferred

[0045] A circle of oil distribution short pipes 202 is connected with the annular oil distribution ring 203 .

[0046] Preferred

[0047] Two annular sealing plates 101 are symmetrically welded to the front and rear ends of the conveying outer casing 1 , and the inner rings of the two annular sealing plates 101 are welded and fixed to the two annular oil distribution rings 203 .

[0048] Preferred

[0049] Two annular oil distribution cavities are formed between the front and rear end portions of the conveying outer shell 1 and the two annular oil distribution rings 203. The front and rear openings of a circle of heat transfer oil channels are connected to the two annular oil distribution cavities. The annular oil distribution cavity on the left is used to distribute unused heat transfer oil in a circle of heat transfer oil channels, and the annular oil distribution cavity on the right is used to gather the used heat transfer oil together.

[0050] Based on the first embodiment, the second embodiment:

[0051] The inner wall of the conveyor roller inner tube 3 is fixed with rubber-plastic thermal insulation cotton 302 by Velcro. The rubber-plastic thermal insulation cotton 302 can cover and insulate the inner wall of the conveyor roller inner tube 3, thereby preventing the heat energy in the heat transfer oil from being directly lost through the inner ring axial channel of the conveyor roller inner tube 3, reducing the waste of heat during use, and helping to further improve the utilization rate of the heat in the heat transfer medium.

[0052] The working principle of this embodiment: when in use, the conveying roller is installed to rotate as a whole, and the two rotary joints 201 are respectively connected to the external heat source circulation supply system for inputting and discharging the heat transfer oil;

[0053] The heat transfer oil enters the heat transfer oil chamber through the left rotary joint 201, the oil inlet and outlet pipes 2 and a circle of oil separation short pipes 202, and is discharged through the right circle of oil separation short pipes 202, the oil inlet and outlet pipes 2 and the rotary joint 201 in sequence after flowing through the heat transfer oil chamber. In this process, the heat in the heat transfer oil is transferred to the conveying outer shell 1 through the heat transfer oil chamber, and the conveying outer shell 1 can heat and dry the fabrics conveyed through it and the coating on the fabrics;

[0054] The left circle of oil distribution short pipes 202 is used to divert the heat transfer oil in the left inlet and outlet oil pipes 2 to the left annular oil distribution chamber, and the right circle of oil distribution short pipes 202 is used to divert the heat transfer oil in the right annular oil distribution chamber to the right inlet and outlet oil pipes 2. The left annular oil distribution chamber is used to distribute the unused heat transfer oil in a circle of heat transfer oil channels, and the right annular oil distribution chamber is used to gather the used heat transfer oil together;

[0055] The rubber-plastic heat-insulating cotton 302 can cover and insulate the inner wall of the conveying roller inner cylinder 3 to prevent the heat energy in the heat-conducting oil from being directly lost through the inner ring axial channel of the conveying roller inner cylinder 3 .

[0056] In this article, there are a few points to note:

[0057] 1. The drawings of the embodiments of the present utility model only relate to the structures related to the embodiments of the present utility model, and other structures may refer to the usual designs.

[0058] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0059] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A heated conveying roller for a coating machine, comprising: A conveying outer shell (1) and a conveying roller inner cylinder (3), wherein the conveying outer shell (1) and the conveying roller inner cylinder (3) are concentrically inserted and matched, and a heat transfer oil cavity with an annular structure is formed between the conveying outer shell (1) and the conveying roller inner cylinder (3); The invention is characterized in that a circle of long guide plates (301) is welded around the circumferential outer wall of the inner cylinder (3) of the conveying roller, and the outer end of the long guide plates (301) is welded and fixed to the inner wall of the outer casing (1) of the conveying roller; the long guide plates (301) are in a wavy continuous curved structure, and a circle of long guide plates (301) divides the heat transfer oil cavity of the annular structure into a circle of heat transfer oil channels in a circuitous and continuously curved manner; Two oil inlet and outlet pipes (2) are symmetrically welded to the front and rear ends of the conveying outer casing (1), and the length of a circle of long guide plates (301) is equal to the length of the conveying roller inner cylinder (3).

2. A heated conveying roller for a coating machine according to claim 1, characterized in that: The head ends of the two oil inlet and outlet pipes (2) are rotatably connected to a rotary joint (201), and the two rotary joints (201) are respectively connected to an external heat source circulation supply system for inputting and discharging heat transfer oil.

3. A heated conveying roller for a coating machine according to claim 1, characterized in that: The tail ends of the two oil inlet and outlet pipes (2) are both welded with a circle of oil distribution short pipe (202), and the outer circles of the two circles of oil distribution short pipes (202) are both welded with an annular oil distribution ring (203).

4. A heating conveying roller for a coating machine according to claim 3, characterized in that: A circle of the oil distribution short pipes (202) is connected to the annular oil distribution ring (203).

5. The heated conveying roller for a coating machine according to claim 1, characterized in that: Two annular sealing plates (101) are symmetrically welded to the front and rear ends of the conveying outer casing (1), and the inner rings of the two annular sealing plates (101) are welded and fixed to the two annular oil distribution rings (203).

6. The heated conveying roller for a coating machine according to claim 1, characterized in that: Two annular oil distribution cavities are formed between the front and rear end portions of the conveying outer casing (1) and the two annular oil distribution rings (203), and the front and rear openings of a circle of heat transfer oil channels are in communication with the two annular oil distribution cavities.

7. The heated conveying roller for a coating machine according to claim 1, characterized in that: A rubber-plastic heat-insulating cotton (302) is fixed to the inner wall of the inner cylinder (3) of the conveying roller via Velcro.

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