A kind of resistive polyester cotton cloth matching sanding and raising device

Abstract

The utility model relates to polyester cotton cloth production technical field discloses a kind of napping and velvet device matched with resistance-burning polyester cotton cloth, including uniform napping device main part and the rotating shaft driven by motor on uniform napping device main part rotation, the outer surface middle section of the rotating shaft is hexagonal, the hexagonal surface outer sliding sleeve of the rotating shaft is connected with napping roller, the surface of uniform napping device main part is fixedly connected with fixed seat.The utility model, by rotating cooperation positioning column, steel ball and limit tube, drive napping roller transverse reciprocating sliding, without additional driving and sensing equipment, reduce cost and sliding frequency and speed synchronization, avoid uneven napping, protect fabric coating and function, simultaneously, napping roller rotates and realizes stable reciprocating motion by reciprocating assembly and spring, in combination with hexagonal rotating shaft design, ensure synchronous rotation and smooth sliding, reduce impact, improve pile uniformity, softness and fabric hand feeling, do not affect its resistance-burning performance.

Description

Technical Field

[0001] This utility model relates to the field of polyester-cotton fabric production technology, and more specifically to a napping and raising device for flame-retardant polyester-cotton fabric. Background Technology

[0002] Flame-retardant polyester-cotton blend fabric is a blended fabric that combines antistatic and flame-retardant properties. It is mainly made of polyester (chemical fiber) and cotton (natural fiber) blended in a certain proportion and is given dual functions through special processing. It is suitable for scenarios with strict safety protection requirements. The napping machine is a device specially used to treat the surface of this type of functional fabric. Its core function is to form a uniform and soft nap layer on the fabric surface through mechanical friction and other methods, while taking into account the flame-retardant properties of the fabric (avoiding damage to the original functional coating or fiber structure during the treatment process).

[0003] A search revealed that utility model patent CN220597889U discloses a uniform sanding device, comprising a sanding roller spanning the top of two housings, the two housings being arranged horizontally parallel and fixedly connected to each other as a whole; the sanding roller is rotatably mounted on bearing seats correspondingly arranged on the top of the two housings via end shafts symmetrically arranged at both ends; a drive motor is fixedly installed in one of the housings, the drive motor being connected to the sanding roller via a belt device to drive the sanding roller to rotate; a smooth section is provided in the middle of the shaft and is movably arranged in the bearing seat, thereby allowing the sanding roller to move axially to both sides while rotating.

[0004] In this patent, the rotation of the abrasive roller combined with the transverse reciprocating sliding structure achieves uniform napping. However, the transverse displacement of the abrasive roller requires the installation of an independent drive device such as a displacement motor. This necessitates precise control of the displacement motor speed when the abrasive roller speed changes, which in turn requires the installation of sensing devices. This increases both the equipment investment cost and the production cost of the flame-retardant polyester-cotton fabric. Furthermore, if the speed increases but the displacement motor speed does not increase synchronously, insufficient transverse movement distance per unit time and excessive overlap of abrasive trajectories will lead to localized over-abrasion (overly dense, short, or even torn fabric). If the speed decreases but the displacement motor speed does not decrease synchronously, insufficient abrasion (sparse, uneven nap) will occur due to excessive trajectory spacing. For flame-retardant polyester-cotton fabric, localized over-abrasion may directly damage the surface functional coating (such as antistatic agent or flame retardant coating) or damage the fiber structure, causing the fabric's localized antistatic and flame-retardant properties to fail. Insufficient abrasion will result in uneven nap distribution on the fabric surface, affecting the feel and subsequent user experience. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a napping and raising device for flame-retardant polyester-cotton fabric, so as to solve the problems existing in the background art.

[0006] The utility model provides the following technical solution: a napping and raising device for flame-retardant polyester-cotton fabric, comprising a uniform napping device body and a rotating shaft driven to rotate by a motor on the uniform napping device body. The middle section of the outer surface of the rotating shaft is hexagonal, and a napping roller is slidably sleeved on the hexagonal surface of the rotating shaft. A fixed seat is fixedly connected to the surface of the uniform napping device body. An installation groove is opened on the surface of the napping roller near the fixed seat. A reciprocating component is installed inside the fixed seat. The end face of the reciprocating component extends into the installation groove. A positioning post is fixedly connected to the outer surface of the rotating shaft near the reciprocating component. A slip ring is fixedly connected to the surface of the reciprocating component away from the napping roller. A sliding groove is opened inside the fixed seat, and a spring is movably installed inside the sliding groove.

[0007] Furthermore, the reciprocating assembly includes a positioning bearing fixedly connected to the inner wall of the mounting groove. A fixing tube is fixedly connected to the outer ring of the positioning bearing. A connecting ring is fixedly connected to the end face of the fixing tube. A positioning tube is fixedly connected to the surface of the connecting ring away from the fixing tube. A limiting tube is fixedly connected to the inner wall of the positioning tube. A steel ball is movably installed inside the positioning column. The surface of the rotating shaft extends to the outside of the positioning column. The surface of the steel ball abuts against the surface of the limiting tube. The surface of the positioning tube is fixedly connected to the surface of the slip ring.

[0008] Furthermore, the surface of the limiting tube is arc-shaped, and the end of the rotating shaft away from the motor is rotatably connected to the inside of the fixed base through a bearing.

[0009] Furthermore, both the groove and the slip ring are square, and the outer surface of the slip ring is slidably connected to the inside of the groove.

[0010] Furthermore, under normal conditions, the spring's elasticity causes the slip ring to slide towards the grinding roller, and the surface of the slip ring is fixedly connected to the surface of the positioning tube.

[0011] Furthermore, the positioning post is "L" shaped, and a hexagonal long groove matching the middle section of the rotating shaft is opened through the center of the grinding roller.

[0012] Furthermore, the mounting groove is annular, and the surface of the fixing tube away from the connecting ring extends into the interior of the mounting groove, with the outer surface of the fixing tube rotatably connected to the interior of the mounting groove.

[0013] Furthermore, the outer surface of the rotating shaft is rotatably connected to the inner center of the positioning bearing, the fixing tube, the connecting ring, the positioning tube, and the limiting tube.

[0014] Furthermore, the spring is square, with one end abutting against the surface of the slip ring and the other end abutting against the inner wall of the groove.

[0015] Furthermore, both the connecting ring and the positioning tube are laterally slidably connected inside the fixed base, and the outer diameter of the mounting groove is larger than the outer diameter of the fixed tube.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. This utility model utilizes the rotation of the shaft itself to drive the brushing roller to achieve lateral reciprocating sliding, eliminating the need for additional drive equipment and sensing devices, thus significantly reducing the manufacturing and maintenance costs of the equipment. It also reduces the production investment in anti-flame-retardant polyester-cotton fabric. Since the reciprocating sliding of the brushing roller is directly driven by the rotation of the shaft through the cooperation of positioning pins, steel balls, and limit tubes, its sliding frequency is synchronized with the rotational speed of the shaft (i.e., the rotational speed of the brushing roller). This avoids the problem of localized over-brushing or under-brushing caused by asynchronous rotational speed and displacement in traditional equipment. It effectively protects the antistatic and flame-retardant coating on the fabric surface, prevents damage to the fiber structure due to uneven brushing, and ensures the integrity of the fabric's function.

[0018] 2. In this invention, the abrasive roller, while rotating, achieves stable lateral reciprocating motion through the cooperation of a reciprocating component and a spring. This causes the abrasive to form a uniform and interlaced friction trajectory on the fabric surface, significantly improving the uniformity and softness of the pile layer. The sliding sleeve design of the hexagonal rotating shaft and the abrasive roller ensures synchronous rotation of both and provides stable guidance for the axial sliding of the abrasive roller, avoiding deviation or jamming during the sliding process. In addition, the elasticity of the spring makes the reciprocating motion of the abrasive roller smoother, reducing mechanical impact damage to the equipment and fabric. This ensures that when processing flame-retardant polyester-cotton fabric, an ideal pile effect can be formed without affecting its original flame-retardant properties, improving the fabric's hand feel and subsequent user experience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the fixing base in this utility model;

[0021] Figure 3 This is a schematic diagram showing the connection between the grinding roller and the reciprocating assembly in this utility model;

[0022] Figure 4 This is a schematic diagram showing the connection between the rotating shaft and the positioning column in this utility model;

[0023] Figure 5 This is a perspective view of the reciprocating component in this utility model;

[0024] Figure 6 This is a schematic diagram showing the connection between the positioning tube and the limiting tube in this utility model;

[0025] Figure 7This is a schematic diagram of the limiting tube in this utility model.

[0026] The attached figures are labeled as follows: 1. Main body of the uniform grinding device; 2. Rotating shaft; 21. Positioning column; 22. Steel ball; 3. Grinding roller; 4. Fixed seat; 5. Mounting groove; 6. Reciprocating assembly; 61. Positioning bearing; 62. Fixed tube; 63. Connecting ring; 64. Positioning tube; 641. Limiting tube; 7. Slip ring; 8. Slide groove; 9. Spring. Detailed Implementation

[0027] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0028] Figures 1-7 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-7 The present invention will be further described below.

[0029] A napping and raising device for flame-retardant polyester-cotton fabric includes a uniform napping device body 1 and a rotating shaft 2 driven by a motor on the uniform napping device body 1. The middle section of the outer surface of the rotating shaft 2 is hexagonal. A napping roller 3 is slidably sleeved on the hexagonal surface of the rotating shaft 2. A fixing seat 4 is fixedly connected to the surface of the uniform napping device body 1. An installation groove 5 is opened on the surface of the napping roller 3 near the fixing seat 4. A reciprocating component 6 is installed inside the fixing seat 4. The end face of the reciprocating component 6 extends into the interior of the installation groove 5. A positioning post 21 is fixedly connected to the outer surface of the rotating shaft 2 near the reciprocating component 6. A slip ring 7 is fixedly connected to the surface of the reciprocating component 6 away from the napping roller 3. A sliding groove 8 is opened inside the fixing seat 4. A spring 9 is movably installed inside the sliding groove 8.

[0030] In this implementation scheme, the rotating shaft 2 directly drives the abrasive roller 3 to slide laterally back and forth. The sliding frequency is completely synchronized with the rotation speed, avoiding local over-abrasion (damage to the functional coating) or under-abrasion (uneven pile) caused by the asynchronous rotation speed and displacement. This reduces equipment costs and eliminates the need for additional drive and sensing equipment, ensuring the functional integrity and abrasion quality of the anti-flame polyester-cotton fabric.

[0031] Specifically, the reciprocating assembly 6 includes a positioning bearing 61 fixedly connected to the inner wall of the mounting groove 5. A fixing tube 62 is fixedly connected to the outer ring of the positioning bearing 61. A connecting ring 63 is fixedly connected to the end face of the fixing tube 62. A positioning tube 64 is fixedly connected to the surface of the connecting ring 63 away from the fixing tube 62. A limiting tube 641 is fixedly connected to the inner wall of the positioning tube 64. A steel ball 22 is movably installed inside the positioning column 21. The surface of the rotating shaft 2 extends to the outside of the positioning column 21. The surface of the steel ball 22 abuts against the surface of the limiting tube 641. The surface of the positioning tube 64 is fixedly connected to the surface of the slip ring 7.

[0032] In this embodiment, the positioning bearing 61 ensures that the fixed tube 62 and the grinding roller 3 rotate stably without interfering with the lateral sliding; the fixed tube 62, the connecting ring 63, and the positioning tube 64 form a rigid transmission structure, which accurately transmits the force of the limiting tube 641 to the grinding roller 3; the arc-shaped surface of the limiting tube 641 cooperates with the steel ball 22 to convert the rotational motion of the rotating shaft 2 into the lateral reciprocating motion of the grinding roller 3, and the transmission is smooth and without jamming; the steel ball 22 reduces the friction between the positioning column 21 and the limiting tube 641, reduces component wear, and extends the service life of the equipment.

[0033] Specifically, the surface of the limiting tube 641 is arc-shaped, and the end of the rotating shaft 2 away from the motor is rotatably connected to the inside of the fixed seat 4 through a bearing.

[0034] In this embodiment, the arc-shaped surface of the limiting tube 641 provides continuous guidance for the steel ball 22, ensuring uniform stroke of the grinding roller 3 reciprocating; the rotating shaft 2 is connected to the fixed seat 4 through the bearing to ensure rotational stability, avoid grinding deviation caused by the shaking of the rotating shaft 2, and improve the overall reliability of the equipment operation.

[0035] Specifically, both the groove 8 and the slip ring 7 are square, and the outer surface of the slip ring 7 is slidably connected to the inside of the groove 8.

[0036] In this embodiment, the square design restricts the slip ring 7 to slide only laterally, preventing the reciprocating component 6 from rotating or shifting during movement. This provides precise guidance for the lateral reciprocating motion of the grinding roller 3, ensuring a stable sliding trajectory and further improving the uniformity of grinding.

[0037] Specifically, under normal conditions, the spring 9 causes the slip ring 7 to slide towards the grinding roller 3, and the surface of the slip ring 7 is fixedly connected to the surface of the positioning tube 64.

[0038] In this implementation scheme, under normal conditions, the elastic thrust of the spring 9 keeps the slip ring 7 in close contact with the positioning tube 64, ensuring that the steel ball 22 is in close contact with the limiting tube 641 and avoiding sliding jamming caused by transmission gap; during the reciprocating sliding process of the abrasive roller 3, the extension and contraction of the spring 9 buffers the mechanical impact force, reduces component vibration, and protects the equipment structure and fabric surface from damage.

[0039] Specifically, the positioning post 21 is "L" shaped, and a hexagonal long groove matching the middle section of the rotating shaft 2 is opened through the center of the grinding roller 3.

[0040] In this embodiment, the "L"-shaped positioning column 21 provides a stable mounting base for the steel ball 22, ensuring reliable contact between it and the limiting tube 641; the hexagonal long groove cooperates with the hexagonal middle section of the rotating shaft 2 to realize the synchronous rotation of the grinding roller 3 and the rotating shaft 2, while allowing the grinding roller 3 to slide freely along the axial direction, which not only ensures the transmission of grinding power, but also meets the requirements for lateral movement.

[0041] Specifically, the mounting groove 5 is annular, and the surface of the fixing tube 62 away from the connecting ring 63 extends into the interior of the mounting groove 5, with the outer surface of the fixing tube 62 rotatably connected to the interior of the mounting groove 5.

[0042] In this embodiment, the annular mounting groove 5 provides rotation space for the fixed tube 62, ensuring that the fixed tube 62 does not rotate with the grinding roller 3 when it rotates (it only slides laterally with the reciprocating component 6), thus avoiding frictional interference between components; the outer diameter of the mounting groove 5 is larger than the outer diameter of the fixed tube 62, providing sufficient space for the lateral sliding of the fixed tube 62 to prevent obstruction of movement.

[0043] Specifically, the outer surface of the rotating shaft 2 is rotatably connected to the inner center of the positioning bearing 61, the fixing tube 62, the connecting ring 63, the positioning tube 64, and the limiting tube 641.

[0044] In this implementation scheme, it is ensured that when the rotating shaft 2 rotates, the reciprocating component 6 only slides laterally and does not rotate with the rotating shaft 2, thereby avoiding energy loss and structural interference caused by the synchronous rotation of multiple components and improving transmission efficiency.

[0045] Specifically, the spring 9 is square, with one end of the spring 9 abutting against the surface of the slip ring 7 and the other end of the spring 9 abutting against the inner wall of the slide groove 8.

[0046] In this embodiment, the square spring 9 is adapted to the square slide groove 8 to prevent the spring 9 from twisting and deforming during the extension and retraction process, and to ensure the stability of the elastic force direction; the abutting design at both ends allows the elastic force of the spring 9 to act precisely on the slip ring 7, ensuring that the reciprocating assembly 6 has stable and reliable reset power.

[0047] Specifically, the connecting ring 63 and the positioning tube 64 are both laterally slidably connected inside the fixed base 4, and the outer diameter of the mounting groove 5 is larger than the outer diameter of the fixed tube 62.

[0048] In this embodiment, the sliding of the connecting ring 63 and the positioning tube 64 within the fixed seat 4 restricts the movement direction of the reciprocating assembly 6, ensuring that it moves only laterally; the size difference between the mounting groove 5 and the fixed tube 62 prevents them from colliding or getting stuck during relative movement, ensuring smooth operation of the equipment.

[0049] The working principle and usage process of this utility model are as follows: During use, when the motor on the main body 1 of the uniform abrasive device drives the rotating shaft 2 to rotate, the rotating shaft 2 drives the abrasive roller 3 to rotate, abrading the fabric. Simultaneously, the rotating shaft 2 drives the positioning pin 21 to rotate inside the positioning tube 64. At this time, the surface of the steel ball 22 rolls and connects to the arc-shaped surface of the limiting tube 641. Due to the shape of the limiting tube 641, when the steel ball 22 rolls in a ring on the limiting tube 641, the contact between the steel ball 22 and the limiting tube 641 causes the limiting tube 641 to move through the positioning tube 64 and drive the connecting ring. 63. The fixed tube 62, the positioning bearing 61, and the mounting groove 5 slide to the right outside the rotating shaft 2. The positioning tube 64 drives the slip ring 7 to slide to the right and compresses the spring 9. At this time, the spring 9 is in a compressed state. When the steel ball 22 rolls half a revolution, the pressure of the steel ball 22 on the limiting tube 641 decreases. Through the elasticity of the spring 9, the slip ring 7 drives the reciprocating assembly 6 and the grinding roller 3 to slide to the left. Therefore, when the rotating shaft 2 rotates one revolution, the grinding roller 3 slides back and forth one revolution. The rotation speed of the rotating shaft 2 is completely consistent with the sliding frequency of the grinding roller 3, which avoids uneven grinding.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A napping and raising device for flame-retardant polyester-cotton fabric, comprising a uniform napping device body (1) and a rotating shaft (2) driven to rotate by a motor on the uniform napping device body (1), characterized in that: The middle section of the outer surface of the rotating shaft (2) is hexagonal. A grinding roller (3) is slidably sleeved on the hexagonal surface of the rotating shaft (2). A fixed seat (4) is fixedly connected to the surface of the body (1) of the uniform grinding device. An installation groove (5) is opened on the surface of the grinding roller (3) near the fixed seat (4). A reciprocating component (6) is installed inside the fixed seat (4). The end face of the reciprocating component (6) extends into the interior of the installation groove (5). A positioning column (21) is fixedly connected to the outer surface of the rotating shaft (2) near the reciprocating component (6). A slip ring (7) is fixedly connected to the surface of the reciprocating component (6) away from the grinding roller (3). A sliding groove (8) is opened inside the fixed seat (4). A spring (9) is movably installed inside the sliding groove (8).

2. The napping and raising device for flame-retardant polyester-cotton fabric according to claim 1, characterized in that: The reciprocating assembly (6) includes a positioning bearing (61) fixedly connected to the inner wall of the mounting groove (5). The outer ring of the positioning bearing (61) is fixedly connected to a fixing tube (62). The end face of the fixing tube (62) is fixedly connected to a connecting ring (63). The surface of the connecting ring (63) away from the fixing tube (62) is fixedly connected to a positioning tube (64). The inner wall of the positioning tube (64) is fixedly connected to a limiting tube (641). A steel ball (22) is movably installed inside the positioning column (21). The surface of the rotating shaft (2) extends to the outside of the positioning column (21). The surface of the steel ball (22) abuts against the surface of the limiting tube (641). The surface of the positioning tube (64) is fixedly connected to the surface of the slip ring (7).

3. The napping and raising device for flame-retardant polyester-cotton fabric according to claim 2, characterized in that: The surface of the limiting tube (641) is arc-shaped, and the end of the rotating shaft (2) away from the motor is rotatably connected to the inside of the fixed seat (4) through a bearing.

4. The napping and raising device for flame-retardant polyester-cotton fabric according to claim 1, characterized in that: Both the groove (8) and the slip ring (7) are square, and the outer surface of the slip ring (7) is slidably connected to the inside of the groove (8).

5. The napping and raising device for flame-retardant polyester-cotton fabric according to claim 2, characterized in that: Under normal conditions, the spring (9) causes the slip ring (7) to slide towards the grinding roller (3), and the surface of the slip ring (7) is fixedly connected to the surface of the positioning tube (64).

6. The napping and raising device for flame-retardant polyester-cotton fabric according to claim 1, characterized in that: The positioning post (21) is "L" shaped, and a hexagonal long groove matching the middle section of the rotating shaft (2) is opened through the center of the grinding roller (3).

7. The napping and raising device for flame-retardant polyester-cotton fabric according to claim 2, characterized in that: The mounting groove (5) is annular, and the surface of the fixing tube (62) away from the connecting ring (63) extends into the interior of the mounting groove (5). The outer surface of the fixing tube (62) is rotatably connected to the interior of the mounting groove (5).

8. The napping and raising device for flame-retardant polyester-cotton fabric according to claim 2, characterized in that: The outer surface of the rotating shaft (2) is rotatably connected to the center of the positioning bearing (61), the fixing tube (62), the connecting ring (63), the positioning tube (64), and the limiting tube (641).

9. The napping and raising device for flame-retardant polyester-cotton fabric according to claim 1, characterized in that: The spring (9) is square, with one end of the spring (9) abutting against the surface of the slip ring (7) and the other end of the spring (9) abutting against the inner wall of the groove (8).

10. The napping and raising device for flame-retardant polyester-cotton fabric according to claim 2, characterized in that: The connecting ring (63) and the positioning tube (64) are both laterally slidably connected inside the fixed base (4), and the outer diameter of the mounting groove (5) is larger than the outer diameter of the fixed tube (62).

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