Heavy-load nylon roller

Abstract

The utility model relates to a heavy-load nylon roller which comprises a roller core, a shaft head, a steel pipe, a nylon sleeve and a flow guide assembly. The two ends of the flowing and discharging channel communicate with conveying grooves. Shaft heads are arranged at the two ends of the roller core, and the shaft heads and the roller core are of an integrally-formed structure; the water passing opening is communicated with the flowing and discharging channel; the steel pipe is coaxially arranged outside the roller core, and a flow guide assembly is arranged on the outer wall of the roller core. The flow guide assembly comprises two connecting parts and a plurality of connecting ribs; the nylon sleeve is coaxially arranged on the outer wall of the steel pipe. The utility model has the advantages that: (1) the shaft head adopts the integrated round steel forge piece shaft head instead of the traditional welding form, so that the processing stress is reduced, and the shaft head is prevented from being pressed at the welding position or the root part of the shaft head is prevented from cracking and breaking; cooling water rapidly circulates in the roller core, the roller body is rapidly cooled, the service life of the roller body is prolonged, and surface abrasion of the nylon sleeve is delayed.

Description

Technical Field

[0001] This utility model relates to the field of nylon roller production technology, and in particular to a heavy-duty nylon roller. Background Technology

[0002] Textile calendering production lines are finishing processes for fabrics. They utilize the physical plasticity of fibers under high pressure or high temperature to flatten the fabric surface and enhance its luster. Different fabric surface effects can be achieved by matching different soft and hard rollers and fabric threading methods, depending on the roller surface material, calendering pressure, temperature, and the type of rollers used. Textile production lines produce fabrics of various widths. Due to the different calendering requirements of different fabrics, some require high tension and heavy pressure. In actual production, solid steel rollers and nylon rollers are used for pressure application, which results in high stress but also makes the finished product surface prone to defects.

[0003] To extend the service life of nylon rollers, the nylon sleeves cannot be heated too high. Therefore, the existing nylon roller core has an unsupported hollow structure, which can only be used on low-pressure calendering equipment and cannot meet the requirements of high-tonnage pressure calendering. The roller body will break after bearing pressure exceeding 80 tons.

[0004] To enhance the pressure-bearing capacity of the roller, existing improvement techniques for nylon rollers involve adding a steel tube structure to the roller body. While the seamless steel tube structure with shaft ends of the nylon roller core, using a beveled welding structure, reduces stress, cracking and breakage at the shaft root still occur after prolonged use and under high pressure in textile production lines.

[0005] Furthermore, the cooling water in the existing internal cooling structure of nylon rollers flows slowly, resulting in poor overall cooling of the roller body. This can easily damage the surface of the nylon roller, which is also a factor affecting the service life of the nylon roller.

[0006] In summary, further improvements to the structure of nylon rollers are needed to address the issue of their short service life. Utility Model Content

[0007] The purpose of this invention is to provide a heavy-duty nylon roller that can extend the service life of the nylon roller and improve the pressure-bearing capacity of the roller body.

[0008] To achieve the above-mentioned utility model objectives, this utility model provides a heavy-duty nylon roller, including a roller core, a shaft head, a steel pipe, a nylon sleeve, and a flow guiding component;

[0009] The roller core has a discharge channel along its axis inside, and the roller core has a transfer groove. Both ends of the discharge channel are connected to the transfer groove. Both ends of the roller core have shaft heads, and the shaft heads and the roller core are integrally formed. The end of the shaft head has a water inlet, and the water inlet is connected to the discharge channel.

[0010] The steel pipe is coaxially disposed outside the roller core, and the outer wall of the roller core is provided with a flow guiding component, which is located between the steel pipe and the roller core;

[0011] The flow guiding assembly includes two connecting parts and several connecting ribs. The two connecting parts are located on the outer wall of the roller core, and the several connecting ribs are arranged in a ring array between the two connecting parts. The gap between each connecting rib is a flow guiding channel. The connecting part is provided with several transmission holes, and the transmission holes are connected to the flow guiding channels.

[0012] The nylon sleeve is coaxially disposed on the outer wall of the steel pipe.

[0013] Preferably, the number of transmission slots is several.

[0014] Furthermore, the various transmission grooves are arranged alternately at the ends of the roller core.

[0015] As a further improvement to the utility model, the steel pipe is heat-sheltered outside the roller core.

[0016] As a further improvement to the utility model, the number of flow guiding channels is 6.

[0017] As a further improvement of the utility model, both ends of the steel pipe are provided with connecting plates by fasteners, and the nylon sleeve is located between the two connecting plates.

[0018] The advantages of this heavy-duty nylon roller compared to existing technologies are as follows:

[0019] (1) The traditional welding method of the shaft head is eliminated and an integral round steel forged shaft head is adopted to reduce the processing stress and avoid the shaft head cracking or breaking due to pressure at the weld or the root of the shaft head.

[0020] (2) Cooling water circulates rapidly inside the roller core, cooling the roller body quickly, extending the service life of the roller body and delaying the wear of the nylon sleeve surface. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of a heavy-duty nylon roller according to the present invention;

[0022] Figure 2 This is a schematic diagram of the flow guiding component structure;

[0023] Figure 3 This is a schematic diagram of a heavy-duty nylon roller structure according to the present invention. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1 As shown, a heavy-duty nylon roller of this utility model includes a roller core 1, a shaft head 2, a steel pipe 3, a nylon sleeve 4, and a flow guiding component 5;

[0026] The roller core 1 has a discharge channel 11 along the axis inside, and the roller core 1 has a transmission groove 12. Both ends of the discharge channel 11 are connected to the transmission groove 12.

[0027] Both ends of the roller core 1 are provided with shaft heads 2. The shaft heads 2 and the roller core 1 are integrally formed. Compared with the traditional shaft head welding structure, the advantage of the integral structure is that it can reduce processing stress and improve the load-bearing capacity of the roller core, with a maximum pressure of up to 180 tons. The end of the shaft head 2 is provided with a water inlet 21, which is connected to the discharge channel 11.

[0028] The number of transmission grooves 12 is several, and cooling water circulates from each transmission groove 12 inside and outside the roller core 1. Preferably, the transmission grooves 12 are arranged alternately at the ends of the roller core 1, which can accelerate the flow of cooling water to a certain extent.

[0029] The steel pipe 3 is coaxially arranged outside the roller core 1; preferably, the steel pipe 3 is heat-shrinked outside the roller core 1. Compared with the traditional structure of welding shaft ends to both ends of the seamless steel pipe, the heat-shrinking structure of the steel pipe 3 can enhance the load-bearing capacity of the steel pipe 3 to a certain extent.

[0030] like Figure 2 As shown, the outer wall of the roller core 1 is provided with a flow guiding component 5, which is located between the steel pipe 3 and the roller core 1;

[0031] The flow guiding component 5 includes two connecting parts 51 and several connecting ribs 52. The two connecting parts 51 are located on the outer wall of the roller core 1. The several connecting ribs 52 are arranged in a ring array between the two connecting parts 51. The gap between each connecting rib 52 is a flow guiding channel 54. The connecting part 51 is provided with several transmission holes 53, and the transmission holes 53 are connected to the flow guiding channel 54.

[0032] An inner tube (not shown in the figure) is inserted into the discharge channel 11 via an existing rotary joint. The inner tube is connected to the corresponding transfer trough 12. Cooling water is transferred through the inner tube to the connected transfer trough 12 and flows between the roller core 1 and the steel pipe 3. Through the action of the flow guiding component 5, it is transferred in each flow guiding channel 54 and enters the roller core 1 from the transfer trough 12 at the other end, i.e., between the discharge channel 11 and the inner tube. Finally, it is discharged from the water outlet 21 from the roller core 1, realizing the circulation of cooling water.

[0033] Cooling water flows between the roller core 1 and the steel pipe 3 through various guide channels 54. The number of guide channels 54 is preferably 6, which facilitates the rapid flow and circulation of cooling water inside and outside the roller core 1, thereby enabling the roller body to cool down quickly, extending the service life of the roller body and delaying the surface wear of the nylon sleeve 4.

[0034] The nylon sleeve 4 is coaxially mounted on the outer wall of the steel pipe 3. Both ends of the steel pipe 3 are provided with connecting plates 6 via fasteners 61, and the nylon sleeve 4 is located between the two connecting plates 6. The two connecting plates 6 fix the nylon sleeve 4 to the outer wall of the steel pipe 3, which not only serves to connect and position the nylon sleeve 4, but also facilitates the disassembly and assembly of the nylon sleeve 4.

[0035] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A heavy-duty nylon roller, characterized in that, Includes roller core, shaft head, steel pipe, nylon sleeve, and flow guiding assembly; The roller core has a discharge channel along its axis inside, and the roller core has a transfer groove. Both ends of the discharge channel are connected to the transfer groove. Both ends of the roller core have shaft heads, and the shaft heads and the roller core are integrally formed. The end of the shaft head has a water inlet, and the water inlet is connected to the discharge channel. The steel pipe is coaxially disposed outside the roller core, and the outer wall of the roller core is provided with a flow guiding component, which is located between the steel pipe and the roller core; The flow guiding assembly includes two connecting parts and several connecting ribs. The two connecting parts are located on the outer wall of the roller core, and the several connecting ribs are arranged in a ring array between the two connecting parts. The gap between each connecting rib is a flow guiding channel. The connecting part is provided with several transmission holes, and the transmission holes are connected to the flow guiding channels. The nylon sleeve is coaxially disposed on the outer wall of the steel pipe.

2. The heavy-duty nylon roller as described in claim 1, characterized in that, The number of transmission slots is several.

3. The heavy-duty nylon roller as described in claim 2, characterized in that, The various transmission grooves are arranged alternately at the ends of the roller core.

4. A heavy-duty nylon roller as described in claim 1, characterized in that, The steel pipe is heat-fitted onto the outside of the roller core.

5. A heavy-duty nylon roller as described in claim 1, characterized in that, The number of flow channels is 6.

6. A heavy-duty nylon roller as described in claim 1, characterized in that, Both ends of the steel pipe are provided with connecting plates by fasteners, and the nylon sleeve is located between the two connecting plates.

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