A hot-pressing roller for non-woven fabric with convenient thread changing

Abstract

This utility model relates to the field of hot embossing technology and discloses a non-woven fabric hot press roller with convenient pattern changing capabilities. It includes: an inner roller body, from which heat-conducting oil flows in from one end and out from the other to heat the inner roller body; multiple interlocking pins are provided on the inner roller body; an embossing cylinder, composed of at least two embossing cylinder units, each with an interlocking groove; the interlocking pins engage with the interlocking grooves to allow the embossing cylinder to be fitted onto the outer layer of the inner roller body; and fastening units, mirror-distributed at both ends of the inner roller body, used to limit the embossing cylinder and securely mount it on the inner roller body. This utility model sets the integrated hot press roller as a detachable inner roller body and embossing cylinder, and divides the embossing cylinder into multiple embossing cylinder units along the axial direction. This eliminates the need to disassemble the entire hot press roller when different patterns need to be hot-pressed during production, meaning the connection between the external oil supply equipment and the inner roller body does not need to be disassembled; only the embossing cylinder needs to be replaced. This simplifies the pattern changing process and improves operational efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hot embossing technology, specifically, it is a hot embossing roller for non-woven fabrics that allows for convenient pattern changing. Background Technology

[0002] Hot embossing rollers use heat-conducting oil as the heating medium. High-temperature oil is introduced into the internal cavity of the roller, raising its temperature and allowing it to press fabrics and plastics. The outer wall of the hot embossing roller is patterned, giving the pressed fabric or plastic a decorative pattern. Some rollers have a smooth outer wall, resulting in a flatter, pattern-free finish. In actual processing, the hot embossing rollers need frequent replacement depending on the pattern requirements of different batches. Replacing the rollers requires disassembling the external oil supply equipment, making the entire process complex and inefficient. Utility Model Content

[0003] The purpose of this invention is to provide a nonwoven fabric hot press roller that allows for convenient pattern changing, solving the problem that the existing hot press rollers have a complex and inefficient overall replacement process when the hot embossed pattern needs to be changed.

[0004] This utility model is achieved through the following technical solution: a non-woven fabric heat press roller that allows for convenient pattern changing, comprising: The inner roller body is heated by heat transfer oil flowing from one end to the other. The inner roller body is provided with multiple interlocking pins. An embossing cylinder is composed of at least two embossing cylinder units. Each embossing cylinder unit is provided with a fitting groove. The fitting pin cooperates with the fitting groove so that the embossing cylinder is sleeved on the outer layer of the inner roller. Fastening units, mirror-distributed at both ends of the inner roller body, are used to limit the embossing cylinder and ensure its secure installation on the inner roller body.

[0005] To better realize this utility model, the fastening unit further includes a radial inner support and an axial limiting member. The radial inner support is used to apply a radially outward force to the embossing cylinder; the axial limiting member is used to apply an axial thrust to the embossing cylinder.

[0006] To better realize this utility model, the radial inner support member further includes a nut, a push sleeve, and an inner support plate assembly. The inner support plate assembly includes two symmetrically arranged inner support plate bodies. The push sleeve and the inner support plate bodies are sleeved on the inner roller body. The nut is threadedly connected to the inner roller body. The inner support plate assembly supports the embossing cylinder unit after being squeezed by the push sleeve.

[0007] To better realize this utility model, the inner support plate assembly further includes bolts and contact rings. The contact rings are integrally formed with the inner support plate body, and the bolts are inserted through the inner support plate body to limit the two inner support plate bodies.

[0008] To better realize this utility model, the inner support plate assembly further includes a flexible contact strip, which is installed in a groove provided on the outer edge of the inner support plate.

[0009] To better realize this utility model, the axial limiting member further includes a limiting rod and a spring, the limiting rod being slidably connected to the push sleeve, and the spring being disposed between the limiting rod and the push sleeve.

[0010] To better realize this utility model, the limiting rod further includes a movable rod and a fixed rod, with the movable rod rotatably connected to the fixed rod.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects: (1) This utility model sets the integrated hot rolling roll as a detachable inner roll body and embossing cylinder, and divides the embossing cylinder into multiple embossing cylinder units along the axial direction, so that when different patterns need to be hot-pressed during the production process, it is not necessary to disassemble the entire hot rolling roll, that is, the connection between the external oil supply equipment and the inner roll body does not need to be disassembled; only the embossing cylinder needs to be replaced; the operation steps of the pattern change process are simplified and the work efficiency is improved. (2) By setting a fastening unit, the present invention applies a radially outward force to the embossing cylinder using the radial inner support in the fastening unit; the axial limiting member applies an axial thrust to the embossing cylinder; and prevents the embossing cylinder from generating radial runout and axial displacement during operation, thus ensuring the quality of hot-pressed products. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic axial cross-sectional view of the overall structure of this utility model.

[0014] Figure 3 This is a radial cross-sectional view of the overall structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the inner roller body and fastening unit structure.

[0016] Figure 5 This is an exploded view of the fastening unit structure.

[0017] Figure 6 This is a schematic diagram of the internal support plate assembly structure.

[0018] Figure 7 This is a cross-sectional view of the axial limiting component structure.

[0019] Wherein: 20-fastening unit; 101-embossing cylinder unit; 102-inner roller body; 103-fitting pin; 104-fitting groove; 201-nut; 202-push sleeve; 203-inner support plate body; 204-bolt; 205-flexible contact strip; 206-contact ring; 207-moving rod; 208-fixed rod; 209-spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical 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.

[0022] Example 1: This embodiment provides a nonwoven fabric heat press roller that allows for convenient pattern changing, specifically as follows: Figures 1-4 As shown, it includes: Inner roller body 102, heat transfer oil flows in from one end of the inner roller body 102 and flows out from the other end to heat the inner roller body 102, and a plurality of fitting pins 103 are provided on the inner roller body 102. An embossing cylinder is composed of at least two embossing cylinder units 101. Each embossing cylinder unit 101 is provided with a fitting groove 104. The fitting pin 103 cooperates with the fitting groove 104 so that the embossing cylinder is sleeved on the outer layer of the inner roller body 102. Fastening units 20 are mirror-distributed at both ends of the inner roller body 102 and are used to limit the embossing cylinder so that it is securely installed on the inner roller body 102.

[0023] The fastening unit 20 includes a radial inner support and an axial limiting member. The radial inner support is used to apply a radially outward force to the embossing cylinder, and the axial limiting member is used to apply an axial thrust to the embossing cylinder.

[0024] When installing the hot rolling roll, multiple embossing cylinder units 101 are sequentially installed on the inner roll body 102 by inserting the fitting pin 103 into the fitting groove 104. In this embodiment, the number of embossing cylinder units 101 is 2. After the embossing cylinder units 101 are installed on the inner roll body 102, the fastening unit 20 is used to limit the embossing cylinder units 101. The radial inner support pushes the embossing cylinder outward. Since the fitting pin 103 is inverted trapezoidal, the embossing cylinder unit 101 will be pressed tightly on the fitting groove 104 to prevent the embossing cylinder from running radially during use. The axial limiting members at both ends are brought together to clamp the embossing cylinder to prevent the embossing cylinder from shifting axially. The embossing cylinder is thus completely fixed. When the hot rolling roll is in use, the external oil supply equipment adds heat transfer oil from one end of the inner roll body 102, and then flows through the inner roll body 102 and flows out from the other end of the inner roll body 102. During this process, the heat of the heat transfer oil is transferred to the inner roll body 102 and then to the embossing cylinder unit 101 to realize the hot pressing function.

[0025] Because the integrated hot rolling roll is set as an inner roll body 102 and an embossing cylinder, and the embossing cylinder is divided into multiple embossing cylinder units 101 along the axial direction, when different patterns need to be hot-pressed during the production process, it is not necessary to disassemble the entire hot rolling roll, that is, the connection between the external oil supply equipment and the inner roll body 102 does not need to be disassembled; only the embossing cylinder needs to be replaced; the operation steps of the pattern change process are simplified and the work efficiency is improved.

[0026] Example 2: This embodiment further expands upon the above embodiment regarding the radial inner support member, specifically as follows: Figure 2 , Figure 5 , Figure 6 As shown, the radial inner support includes a nut 201, a push sleeve 202, and an inner support plate assembly. The inner support plate assembly includes two symmetrically arranged inner support plate bodies 203. The push sleeve 202 and the inner support plate bodies 203 are sleeved on the inner roller body 102. The nut 201 is threadedly connected to the inner roller body 102. The inner support plate assembly supports the embossing cylinder unit 101 after being squeezed by the push sleeve 202.

[0027] After the embossing cylinder unit 101 is installed on the inner roller body 102, the nut 201 is rotated. The nut 201 moves axially, thereby pushing the push sleeve 202. The push sleeve 202 squeezes the inner support plate assembly. At this time, since the inner support plate assembly is pressed on the inner roller body 102, the two inner support plate bodies 203 are deformed, the overall thickness begins to decrease, and the diameter begins to expand; thus supporting the embossing cylinder and realizing radial extrusion.

[0028] Furthermore, the inner support plate assembly also includes bolts 204 and contact rings 206. The contact rings 206 are integrally formed with the inner support plate body 203, and the bolts 204 are inserted through the inner support plate body 203 to limit the two inner support plate bodies 203.

[0029] The two inner support discs 203 are joined together using bolts 204. This serves two purposes: firstly, it prevents the two inner support discs 203 from moving too far apart, thus avoiding excessive axial space occupation, ensuring that the outer edges of the inner support discs 203 remain in contact; secondly, it prevents relative rotation between the two inner support discs 203, which would cause uneven stress distribution when under pressure. The contact ring 206 is provided to provide space for the bolts 204.

[0030] Furthermore, the inner support plate assembly also includes a flexible contact strip 205, which is installed in a groove on the outer edge of the inner support plate body 203. The flexible contact strip 205 is provided to prevent rigid contact between the inner support plate body 203 and the embossing cylinder unit 101, which could cause deformation of the embossing cylinder unit 101 when the nut 201 is rotated excessively; at the same time, the flexible contact strip 205 can also increase the friction force, thus preventing axial displacement of the embossing cylinder unit 101.

[0031] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0032] Example 3: This embodiment further expands upon the axial limiting component based on the above embodiment, specifically as follows: Figure 7 As shown, the axial limiting component includes a limiting rod and a spring 209. The limiting rod is slidably connected to the push sleeve 202, and the spring 209 is disposed between the limiting rod and the push sleeve 202.

[0033] After the embossing cylinder unit 101 is installed on the inner roller body 102, the nuts 201 at both ends are rotated at the same speed. At this time, the push sleeve 202 first pushes the limiting rod to move, and the two limiting rods on both sides move closer to each other. At this time, the embossing cylinder unit 101 is pushed so that the embossing cylinder unit 101 is centered. Then the push sleeve 202 moves further, at which point the limiting rod can no longer move, the spring 209 begins to be compressed, and the push sleeve 202 begins to push the contact ring 206. At this time, the inner support plate 203 begins to expand outward, and the flexible contact strip 205 contacts the inner wall of the embossing cylinder unit 101 to expand it outward. Thus, the embossing cylinder is completely changed.

[0034] Furthermore, the limiting rod includes a movable rod 207 and a fixed rod 208, with the movable rod 207 rotatably connected to the fixed rod 208.

[0035] To avoid disassembling the limiting rod when removing the embossing cylinder, the limiting rod is made into two sections. Figure 7For example, when a change is needed, first loosen the nut 201. At this time, the limiting rod moves away from the embossing cylinder unit 101. Then rotate the movable rod 207 counterclockwise to reduce the radial size of the limiting rod. After that, the embossing cylinder unit 101 can be directly pulled out for replacement. Then rotate the movable rod 207 clockwise to be collinear with the fixed rod 208. After that, the movable rod 207 can no longer rotate. At this time, tighten the nut 201, and the movable rod 207 will start to push the embossing cylinder unit 101 to clamp.

[0036] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0037] 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 nonwoven fabric heat press roller with convenient pattern changing, characterized in that, include: The inner roller body (102) is heated by heat transfer oil flowing from one end to the other end. The inner roller body (102) is provided with a plurality of interlocking pins (103). The embossing cylinder is composed of at least two embossing cylinder units (101), and the embossing cylinder unit (101) is provided with a fitting groove (104). The fitting pin (103) cooperates with the fitting groove (104) so ​​that the embossing cylinder is sleeved on the outer layer of the inner roller body (102). Fastening units (20) are mirror-distributed at both ends of the inner roller body (102) to limit the embossing cylinder and securely install it on the inner roller body (102).

2. The nonwoven fabric hot press roller with convenient pattern changing according to claim 1, characterized in that: The fastening unit (20) includes a radial inner support and an axial limiting member. The radial inner support is used to apply a radially outward force to the embossing cylinder, and the axial limiting member is used to apply an axial thrust to the embossing cylinder.

3. The nonwoven fabric hot press roller with convenient pattern changing according to claim 2, characterized in that: The radial inner support includes a nut (201), a push sleeve (202), and an inner support plate assembly. The inner support plate assembly includes two symmetrically arranged inner support plate bodies (203). The push sleeve (202) and the inner support plate bodies (203) are sleeved on the inner roller body (102). The nut (201) is threaded onto the inner roller body (102). The inner support plate assembly supports the embossing cylinder unit (101) after being squeezed by the push sleeve (202).

4. The nonwoven fabric hot press roller with convenient pattern changing according to claim 3, characterized in that: The inner support plate assembly also includes bolts (204) and contact rings (206). The contact rings (206) are integrally formed with the inner support plate body (203). The bolts (204) are inserted through the inner support plate body (203) and used to limit the two inner support plate bodies (203).

5. The nonwoven fabric hot press roller with convenient pattern changing according to claim 3, characterized in that: The inner support plate assembly also includes a flexible contact strip (205), which is installed in a groove provided on the outer edge of the inner support plate body (203).

6. A nonwoven fabric hot press roller with convenient pattern changing according to any one of claims 2-5, characterized in that: The axial limiting component includes a limiting rod and a spring (209). The limiting rod is slidably connected to the push sleeve (202), and the spring (209) is disposed between the limiting rod and the push sleeve (202).

7. The nonwoven fabric hot press roller with convenient pattern changing according to claim 6, characterized in that: The limiting rod includes a movable rod (207) and a fixed rod (208), with the movable rod (207) rotatably connected to the fixed rod (208).

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