Hot-pressing film laminating roller mechanism

Abstract

The hot-pressing film laminating roller mechanism comprises a rotating shaft, the middle of the rotating shaft is fixedly connected with an inner cylinder sleeve and an outer cylinder sleeve, the inner cylinder sleeve is located in the outer cylinder sleeve, a cavity between the inner cylinder sleeve and the outer cylinder sleeve is filled with a heating medium, the two ends of the rotating shaft are both fixedly connected with bearings, the side walls of the bearings are sleeved with fixing sleeves, and the fixing sleeves are fixedly connected with the rotating shaft. The side wall of the fixing sleeve is fixedly connected with connecting plates, a plurality of electric heating pipes are arranged in a cavity between the inner cylinder sleeve and the outer cylinder sleeve, and the two ends of each electric heating pipe are fixedly connected with the two connecting plates respectively. Local heating is carried out, so that the temperature of the upper part of the outer sleeve is relatively low, namely the temperature difference with air is small, heat loss can be reduced, and the advantages of greenness and energy conservation are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of electric heating rollers, and in particular to a hot pressing laminating roller mechanism. Background Art

[0002] Electric heating rollers are widely used in a wide range of fields, such as textiles, printing, etc. The electric heating element on the electric heating roller generates heat when it is energized, and heats the passing material. There are also various forms of heating, the most common of which are: directly using electric heating wire to generate heat, and also using induction heating, etc.

[0003] When the existing electric heating roller is in operation, the entire circumferential surface is heated, that is, the temperature of the entire cylindrical surface is consistent. If the temperature required by the processing technology is higher, the temperature difference with the air temperature will also be greater. The greater the temperature difference, the faster the heat is dissipated, which not only consumes a lot of energy, but also increases the temperature of the working environment. If the production line is set up in a constant temperature workshop, it also increases the operating burden of the refrigeration equipment. Summary of the invention

[0004] In order to solve the above problems, the present invention discloses a hot pressing coating roller mechanism, including a rotating shaft, the middle part of which is fixedly connected with an inner sleeve and an outer sleeve, the inner sleeve is located inside the outer sleeve, and the chamber between the two is filled with heat medium. The heat medium is heated and then reaches the outer sleeve by heat transfer, thereby heating the contacted fabric. The heat medium heating method is adopted to make the overall temperature balanced. At the same time, the heat medium does not fill the entire chamber. During the rotation process, the heat medium is always located at the lower part of the chamber under the action of gravity, so as to achieve the heating of the entire outer sleeve. In this method, the heat medium heats the local part of the outer sleeve, and the temperature of the area far away from the heat medium is relatively low. The current heating roller heats the entire circumferential surface, that is, the temperature of the entire cylindrical surface is consistent and high, and the greater the temperature difference, the faster the heat loss. The setting in this scheme can reduce the heat loss and has the advantages of green energy saving.

[0005] Both ends of the rotating shaft are fixedly connected with bearings, the side wall of the bearing is sleeved with a fixed sleeve, the side wall of the fixed sleeve is fixedly connected with a connecting plate, and a plurality of electric heating tubes are arranged in the chamber between the inner sleeve and the outer sleeve, and the two ends of the electric heating tubes are respectively fixedly connected with two connecting plates. The electric heating tubes generate heat when electricity is turned on to heat the heat medium. During the rotation of the device, it is necessary to ensure that the electric heating tubes are always in the heat medium, so bearings, connecting plates and other components are arranged, and also under the action of gravity, the electric heating tubes are always kept in the heat medium.

[0006] Preferably, one end of the outer sleeve is fixedly connected to a first sealing end, and a slip ring is arranged on the side wall of the first sealing end. A wiring seat is arranged on the slip ring, and the other side of the slip ring is electrically connected to the electric heating tube.

[0007] Preferably, one end of the outer sleeve is fixedly connected to a second sealing end, an inlet and outlet pipe is fixedly connected to the second sealing end, and a pressure relief valve is fixedly connected to the side wall of the inlet and outlet pipe. Heat medium is injected into or discharged from the chamber through the inlet and outlet pipe, and the pressure relief valve ensures the safety of the device.

[0008] Preferably, a shaft sleeve is fixedly connected to the middle of the first sealed end or the second sealed end, and the shaft sleeve is sleeved on the end of the rotating shaft, that is, the shaft sleeve wraps the two ends of the rotating shaft.

[0009] Preferably, the end of the shaft sleeve is threadedly connected with a sealing sleeve, a sealing gasket is arranged inside the sealing sleeve, and the sealing gasket and the end of the shaft sleeve are tightly fitted. The sealing sleeve is tightened and the sealing gasket is buckled to perform sealing.

[0010] Preferably, a nut is threadedly connected to the rotating shaft, and the nut abuts against the bearing. The position of the bearing is fixed by tightening the nut.

[0011] Preferably, the outer sleeve includes a support sleeve, the side wall of the support sleeve is provided with holes, and the holes are filled with copper bars, and the outer side of the support sleeve is sleeved with an aluminum sleeve. The copper bars and the aluminum sleeve are provided to improve the efficiency of heat exchange.

[0012] The beneficial effects of the present invention are as follows: 1. The lower part of the chamber between the outer sleeve and the inner sleeve is filled with heat medium. During the operation of the device, the heat medium and the electric heating tube for heating the heat medium are maintained at the lower position of the chamber. Under the action of the fabric contacting the outer sleeve from the bottom, the upper temperature of the entire outer sleeve is lower than the lower temperature, that is, the temperature difference between the upper area and the air is small, which can reduce the speed of heat loss. Compared with the existing electric heating roller, it has the advantages of green energy saving.

[0013] 2. Heat is indirectly transferred through heat medium, and the heat medium is liquid. In the flowing state, the outer sleeve is heated evenly, which is beneficial to improve the quality of fabric processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a schematic diagram of one end of the present invention; Figure 3 It is another end schematic diagram of the present invention; Figure 4 It is a cross-sectional schematic diagram of the present invention; Figure 5 A partial cross-sectional view of the end of the rotating shaft of the present invention; Figure 6 It is a structural schematic diagram of one end of the electric heating tube of the present invention; Figure 7 for Figure 4 Enlarged view of point A in the middle.

[0015] List of reference numerals: 1. Outer sleeve; 2. First sealing end; 3. Bushing; 4. Slip ring; 5. Sealing sleeve; 6. Second sealing end; 7. Inlet and outlet pipes; 8. Pressure relief valve; 9. Heat medium; 10. Electric heating tube; 11. Inner sleeve; 12. Rotating shaft; 13. Sealing pad; 14. Fixed sleeve; 15. Connecting plate; 16. Bearing; 17. Nut; 101. Support sleeve; 102. Aluminum sleeve; 103. Copper bar. DETAILED DESCRIPTION

[0016] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0017] like Figures 1 to 7 As shown, a hot pressing film coating roller mechanism includes a rotating shaft 12, both ends of the rotating shaft 12 are provided with a stepped structure, the middle part of the rotating shaft 12 is fixedly connected with an inner sleeve 11 and an outer sleeve 1, the inner sleeve 11 is located inside the outer sleeve 1, and the chamber between the two is filled with a heat medium 9, the heat medium 9 is heated, the heat in the heat medium 9 heats the outer sleeve 1 by heat transfer, and the heat on the outer sleeve 1 heats the fabric by heat transfer. During the rotation of the device, the heat medium 9 flows and is always at the bottom of the chamber. During operation, the fabric passes through the lower part of the outer sleeve 1, that is, it is arranged close to the heat medium 9.

[0018] Both ends of the rotating shaft 12 are fixedly connected with bearings 16, the side wall of the bearing 16 is sleeved with a fixed sleeve 14, and the side wall of the fixed sleeve 14 is fixedly connected with a connecting plate 15. A plurality of electric heating tubes 10 are arranged in the chamber between the inner sleeve 11 and the outer sleeve 1. The electric heating tubes 10 generate heat when energized and heat the heat medium 9. The two ends of the electric heating tubes 10 are respectively fixedly connected to the two connecting plates 15. The bearings 16, connecting plates 15 and other components are arranged to ensure that the electric heating tubes 10 are always located in the heat medium 9 under the action of gravity during the rotation of the device.

[0019] Furthermore, the electric heating tube 10 is arranged to be located in the heat medium 9, and the electric heating tube 10 is not in direct contact with the outer sleeve 1. Through the indirect transfer of the heat medium 9, it is ensured that the fabric can be heated evenly, and the consistency of the overall quality of the fabric is improved. In addition, during the operation of the device, the heat medium 9 and the electric heating tube 10 are always kept in the lower part of the chamber, that is, the lower heat-generating area of ​​the device. Due to the heat absorption of the fabric, the wrap angle of the fabric is at least 120° during the process of the fabric passing through the lower part of the outer sleeve 1. Therefore, in the process of the fabric moving away from the outer sleeve 1, it also absorbs heat, and the heat generation is located in the lower part. Therefore, during the use of the device, the upper temperature of the device is lower than the lower temperature. The higher temperature of the lower part is suitable for heating the fabric, and the temperature difference between the lower temperature and the air is relatively small, that is, the heat loss rate is slow. The existing electric heating rollers are all provided with electric heating elements on the circumferential surface, that is, the temperature on the circumferential surface of the electric heating tube is relatively high, so that the temperature difference with the air is large, and the heat dissipation is fast. Compared with the existing electric heating rollers, this device has the advantages of green energy saving.

[0020] One end of the outer sleeve 1 is fixedly connected to the first sealing end 2, and the side wall of the first sealing end 2 is provided with a slip ring 4. The slip ring 4 is a component for powering the electric heating tube 10, that is, the slip ring 4 is connected to an external power supply, and the other side of the slip ring 4 is fixedly connected to the electric heating tube 10.

[0021] One end of the outer tube sleeve 1 is fixedly connected to a second sealing end 6, and the second sealing end 6 is fixedly connected to an inlet and outlet pipe 7, which is used to inject or send heat medium 9 into or out of the chamber. The side wall of the inlet and outlet pipe 7 is fixedly connected to a pressure relief valve 8. When the pressure in the chamber is too high, the pressure relief valve 8 releases the pressure to ensure the safe and stable operation of the device.

[0022] Furthermore, the first sealing end 2 and the second sealing end 6 both seal the end of the outer tube sleeve 1, so that the chamber becomes a relatively closed state. The first sealing end 2 or the second sealing end 6 and the outer tube sleeve 1 are integrally formed, and the other is fixed by a threaded connection, or is fixed by welding during the assembly process.

[0023] A shaft sleeve 3 is fixedly connected to the middle of the first sealing end 2 or the second sealing end 6, and the shaft sleeve 3 is sleeved on the end of the rotating shaft 12. In this method, only the shaft sleeve 3 and the end of the rotating shaft 12 need to be sealed, which reduces the difficulty of sealing.

[0024] The end of the sleeve 3 is threadedly connected with a sealing sleeve 5, which is sealed and fixed. A sealing gasket 13 is arranged inside the sealing sleeve 5, and the sealing gasket 13 and the end of the sleeve 3 are tightly fitted. The sealing sleeve 5 is tightened and fixed and the sealing gasket 12 is pressed, so that the end of the sleeve 3 is sealed.

[0025] A nut 17 is threadedly connected to the rotating shaft 12 , and the nut 17 abuts against the bearing 16 , thereby limiting the position of the bearing 12 .

[0026] The outer sleeve 1 includes a support sleeve 101, which is made of a material with low thermal conductivity efficiency. Several holes are opened on the side wall of the support sleeve 101, and copper bars 103 are filled in the holes. The copper material has high thermal conductivity. If necessary, the copper bar 103 can be replaced with a heat pipe. At the same time, the copper bar 103 is in contact with the heat medium 9, and the heat on the heat medium 9 is directly transferred to the copper bar 103. The outer sleeve of the support sleeve 101 is provided with an aluminum sleeve 102. The setting of the aluminum sleeve 102 is to even out the heat, and the heat transfer efficiency of the aluminum material is relatively high, which is suitable for quickly transferring heat to heat the fabric. In order to further improve the wear resistance of the aluminum sleeve 102, chrome is plated on the surface of the aluminum sleeve 102. In addition, when the support sleeve 101 and the aluminum sleeve 102 are assembled, they are fitted through thermal expansion and contraction, and thermal grease is filled in the gap between the two.

[0027] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above technical features.

Claims

1. A hot pressing laminating roller mechanism, characterized in that: It comprises a rotating shaft (12), the middle part of which is fixedly connected to an inner sleeve (11) and an outer sleeve (1), the inner sleeve (11) being located inside the outer sleeve (1), and a chamber between the inner sleeve (11) being filled with a heat medium (9); Both ends of the rotating shaft (12) are fixedly connected to bearings (16), the side wall of the bearing (16) is sleeved with a fixed sleeve (14), the side wall of the fixed sleeve (14) is fixedly connected to a connecting plate (15), and a plurality of electric heating tubes (10) are arranged in the chamber between the inner sleeve (11) and the outer sleeve (1), and the two ends of the electric heating tube (10) are respectively fixedly connected to the two connecting plates (15).

2. A hot pressing laminating roller mechanism according to claim 1, characterized in that: One end of the outer cylinder sleeve (1) is fixedly connected to a first sealing end (2), and a slip ring (4) is provided on the side wall of the first sealing end (2).

3. The hot pressing laminating roller mechanism according to claim 1, characterized in that: One end of the outer sleeve (1) is fixedly connected to a second sealing end (6), the second sealing end (6) is fixedly connected to an inlet and outlet pipe (7), and a side wall of the inlet and outlet pipe (7) is fixedly connected to a pressure relief valve (8).

4. A hot pressing laminating roller mechanism according to claim 2 or 3, characterized in that: A shaft sleeve (3) is fixedly connected to the middle of the first sealed end (2) or the second sealed end (6), and the shaft sleeve (3) is sleeved on the end of the rotating shaft (12).

5. A hot pressing laminating roller mechanism according to claim 4, characterized in that: The end of the shaft sleeve (3) is threadedly connected to a sealing sleeve (5), a sealing gasket (13) is arranged inside the sealing sleeve (5), and the sealing gasket (13) and the end of the shaft sleeve (3) are tightly fitted.

6. The hot pressing laminating roller mechanism according to claim 1, characterized in that: A nut (17) is threadedly connected to the rotating shaft (12), and the nut (17) abuts against the bearing (16).

7. The hot pressing laminating roller mechanism according to claim 1, characterized in that: The outer cylinder sleeve (1) comprises a support sleeve (101), a side wall of the support sleeve (101) is provided with a plurality of holes, and the holes are filled with copper bars (103), and an aluminum sleeve (102) is sleeved on the outer side of the support sleeve (101).

Images