An apparatus for improving the uniformity of a surface coating on a fabric
By adding auxiliary transmission components and needle plate oiling components to the guide rail, the problems of chain vibration and needle slippage during fabric coating drying were solved, thereby improving the uniformity of fabric coating and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LITTLE SUN TECH DEV CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-06-02
Smart Images

Figure CN224308780U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the textile field, and in particular to a device for improving the uniformity of coating on fabric surfaces. Background Technology
[0002] In recent years, with the continuous development of the domestic coating industry, the fabric coating industry has also developed rapidly. However, the most common quality problem in fabric coating on the market is the wrinkling of the coating surface during the fabric coating drying process, and this problem has not yet been well solved. The main reason for wrinkling is that many coated fabric manufacturers, in order to improve production efficiency, can only try to increase the number of drying chamber sections and increase the machine speed, which inevitably increases the length of the fabric clamp (chain needle plate assembly). When the chain length increases to a certain extent, the chain will vibrate (similar to creep) during operation due to factors such as heat deformation and running resistance in the guide rail; this chain vibration is one of the main causes of wrinkling of the fabric surface coating. In addition, when the fabric is removed from the needle at the tail of the machine, the coating (sizing agent) on the fabric edge is applied to the needle plate. After drying in the drying chamber, the sizing agent will adhere to the needle tip of the needle plate. This sizing agent will increase the resistance to needle removal, causing the fabric to remove the needle later. When the fabric suddenly encounters a delayed needle removal during normal operation, the chain will be sometimes tight and sometimes loose. Utility Model Content
[0003] The purpose of this invention is to provide a device for improving the uniformity of coatings on fabric surfaces.
[0004] The innovation of this utility model lies in the fact that by adding an auxiliary transmission component, the traction force on the chain is made relatively uniform, thereby avoiding the problem of chain vibration caused by the chain being sometimes tight and sometimes loose on the outer side of the guide rail chain groove during operation.
[0005] To achieve the aforementioned objectives, the technical solution of this utility model is as follows:
[0006] A device for improving the uniformity of coating on fabric surface includes a guide rail, the guide rail including a head and a tail, the tail being provided with a drive wheel and the head being provided with a driven wheel, and the driven wheel at the head being provided with an auxiliary transmission component for synchronously driving the driven wheel and the drive wheel.
[0007] Furthermore, a needle plate oiling assembly is provided on the guide rail. When the fabric enters the front end of the drying chamber on the guide rail side of the machine head, the needle plate oiling assembly is added. Once the needle plate and needle tip are coated with the coating on the fabric after being oiled, the presence of an oil film between the needle and needle plate and the fabric can prevent the fabric coating from adhering to the fabric during needle removal at the tail of the machine, thus avoiding the problem of needle removal.
[0008] Furthermore, the needle plate brush assembly includes a bracket, a needle valve type oil cup located on the bracket, and an oil brush, with the needle valve type oil cup and the oil brush connected by an oil pipe.
[0009] Furthermore, the oil brush includes a brush plate, steel wire bristles located on the brush plate, and cotton thread sandwiched within the steel wire bristles.
[0010] Furthermore, the brush plate and the support are connected by an adjustable mechanism that allows for vertical movement. The wire brush can be adjusted downwards as it wears down.
[0011] Furthermore, the adjustment mechanism includes a connecting bracket connected to the brush plate and the support, and the connecting bracket is provided with an oblong hole. Adjustment is convenient and quick.
[0012] Furthermore, the auxiliary transmission component is a drive motor.
[0013] The beneficial effects of this utility model are:
[0014] 1. In this utility model, an auxiliary transmission component is added to the passive wheel of the head guide rail. The speed control of the auxiliary transmission component is synchronized with the main transmission wheel of the tail. This makes the traction force on the chain in the running groove of the two chains on the same horizontal guide rail relatively uniform (the side of the fabric under tension is the inner groove, and the other side is the outer groove), thereby avoiding the problem of chain vibration caused by the chain on the outer side of the guide rail chain groove being sometimes tight and sometimes loose during operation.
[0015] 2. This patent adds a needle plate oiling component to the front end of the drying chamber on the side of the fabric entering the machine head guide rail. Once the needle plate and needle tip are coated with the coating on the fabric after being oiled, the presence of an oil film between the needle and needle plate and the fabric can prevent the fabric from being adhered to the fabric coating when the fabric is removed at the tail of the machine, thus preventing the fabric from being removed. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the needle plate brushing assembly.
[0018] Figure 3 This is an exploded view of the paint brush. Detailed Implementation
[0019] The technical solutions in the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings.
[0020] Example 1: As Figure 1 , 2As shown in Figure 3, a device for improving the uniformity of coating on the surface of a fabric includes a guide rail 1. The guide rail 1 includes a head 2 and a tail 3. A drive wheel 4 is provided at the tail 3, and a driven wheel 5 is provided at the head 2. An auxiliary transmission component 6 is provided at the driven wheel of the head 3 to synchronously drive the driven wheel 5 and the drive wheel 4. The auxiliary transmission component 6 is a drive motor.
[0021] The guide rail 1 is equipped with a needle plate brush assembly 7, which includes a bracket 7.1, a needle valve type oil cup 7.2 located on the bracket 7.1, and an oil brush 7.3. The needle valve type oil cup 7.2 and the oil brush 7.3 are connected by an oil pipe 7.4. The oil brush 7.3 includes a brush plate 7.31, steel wire bristles located on the brush plate 7.31, and cotton thread sandwiched within the steel wire bristles. The brush plate 7.31 and the bracket 7.1 are connected by an adjustable mechanism 7.5 that can move up and down. The adjustable mechanism 7.5 includes a connecting frame 7.51 connected to the brush plate 7.31 and the bracket 7.1, and the connecting frame 7.51 is provided with an oblong hole 7.52.
[0022] The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
Claims
1. An apparatus for improving the uniformity of a surface coating on a fabric comprising a guide rail, said guide rail comprising a head and a tail, said tail being provided with a driving wheel and said head being provided with a driven wheel, characterized in that, The auxiliary transmission assembly is arranged on the head driven wheel and is used for synchronously driving the driven wheel and the driving wheel.
2. The apparatus for improving uniformity of a fabric surface coating according to claim 1, wherein, The guide rail is provided with a needle plate oil brushing assembly.
3. The apparatus for improving uniformity of a fabric surface coating according to claim 1, wherein, The needle plate oil brushing assembly comprises a support, a needle valve type oil cup and an oil brush.
4. The apparatus for improving uniformity of a fabric surface coating according to claim 3, wherein, The oil brush comprises a brush plate, steel wire brush hairs and cotton threads.
5. The apparatus for improving uniformity of a fabric surface coating according to claim 4, wherein, The brush plate and the support are connected through an up-and-down movable adjusting mechanism.
6. The apparatus for improving uniformity of a fabric surface coating according to claim 5, wherein, The adjusting mechanism comprises a connecting frame connected to the brush plate and the support, and a waist-shaped hole is arranged on the connecting frame.
7. The apparatus for improving uniformity of a fabric surface coating according to claim 1, wherein, The auxiliary transmission assembly is a driving motor.