Complete Solution for Fully Automatic Heat Patch Production Line

This integrated fully‑automatic production line is designed for civil heating patches, hot compress patches, womb warm patches, moxibustion warm patches and similar products. It realizes full‑process production from raw‑material feeding, quantitative powder filling, lamination, pressing, die‑cutting to sealing packaging, defective‑product rejection, counting and stacking.

Eliminating labor‑intensive manual assembly lines, it addresses common industry problems including uneven feeding, inconsistent thickness, air/powder leakage, low productivity and high material waste. The unit adopts an all‑in‑one integrated structure instead of spliced equipment linkage. Featuring intelligent frequency‑conversion control and high‑precision quantitative feeding, it enables one‑click parameter setting and quick mold change. Supporting both regular‑square and special‑shaped warm patches, it satisfies large‑scale standardized manufacturing as well as multi‑variant small‑batch customized production for factories of all sizes.

1. Project Background & Pain Point Analysis

1.1 Industry Background

With the continuous expansion of the health preservation, home warmth, menstrual care and physical therapy hot compress markets, the demand for civil warm patch consumables increases year by year. The market has higher requirements for product quality consistency, supply stability, production cleanliness and delivery efficiency. Traditional semi-automatic and labor-assisted production lines can no longer meet the needs of large-scale mass production and brand standardized quality inspection. Automatic, intelligent and integrated production lines have become an inevitable trend of industrial upgrading.

1.2 Core Pain Points of Traditional Production

High Labor Cost：Most processes including powder feeding, base material fitting and packaging sealing rely on manual work. A single production line requires 6-10 operators, resulting in high labor expenditure, strong staff mobility and high management costs.
Poor Product Consistency：Manual feeding has large errors, leading to uneven weight of heating powder, inconsistent heating duration, local overheating and slow temperature rise. Manual fitting is prone to deviation, wrinkles and misalignment.
High Material Loss Rate：Manual operation easily causes powder leakage, loose sealing, air leakage and damage, resulting in high defective rate and serious raw material waste.
Limited Production Capacity：Low efficiency of manual process connection restricts capacity improvement, making it unable to undertake large-batch orders and leading to uncontrollable delivery cycles.
Low Standardization：Lack of unified parameter control causes large batch-to-batch differences, failing to meet the quality inspection standards of brand customers, supermarkets and e-commerce platforms.

2. Design Principles & Project Objectives

2.1 Design Principles

Automatic Integration：Full-process automatic linkage from raw material feeding to finished product discharging with minimal manual intervention.
High Precision & Stability：Accurate powder quantification, constant-temperature heat sealing and uniform-speed lamination ensure zero batch difference and stable continuous operation.
Flexibility & Versatility：Supports production of regular, special-shaped and moxibustion warm patches with rapid mold replacement and one-click parameter switching.
Energy-saving & Easy Maintenance：Frequency conversion energy-saving control system with low noise and low power consumption; modular design facilitates inspection and maintenance.
Safe & Compliant Production：Equipped with protective devices, fault alarm and emergency stop functions, complying with food-grade clean production and safety production standards.

2.2 Quantitative Project Objectives (SMART Standard)

The disposable wet towel folding machine production line adopts an integrated fully automatic process with continuous automatic operation. The specific process is as follows: non-woven fabric raw material unwinding → constant tension deviation correction conveying → high-speed precise cutting → customized folding forming → automatic quantitative liquid spraying and humidification → finished product shaping and conveying → intelligent counting and stacking → automatic finished product discharging. During the production process, the equipment is equipped with an on-line detection system, which can automatically identify and eliminate defective products, liquid shortage, folding misalignment and other problems without manual duty. At the same time, it supports continuous uninterrupted production, and can adjust the operating speed, product size and humidification parameters according to production needs, adapting to the standardized mass production of disposable wet towels of different specifications. The processes are closely connected without material waste, and the production qualification rate can reach more than 99.8%.

3. Overall Production Process Solution

The entire production line adopts full-automatic integrated linkage technology with synchronous and closed-loop process operation. The core process flow is as follows:

Base Material Unwinding → Automatic Deviation Correction → High-precision Quantitative Powder Feeding → Auxiliary Material Automatic Feeding → Multi-layer Base Material Lamination & Pressing → Constant-temperature Heat Sealing Forming → Precision Die-cutting & Slitting → Intelligent Defect Removal → Independent Vacuum Packaging → Finished Product Counting & Discharging → Stacking & Storage.

4. Core Equipment Configuration & Technical Parameters

Parameter Item	Technical Index
Equipment Name	Warm Patch Inner Packaging Machine
Equipment Model	NB-330
Packaging Material & Specification	NB330 type non-woven fabric, adhesive backing patch
Machine Dimension	400mm (L) × 800mm (W) × 1600mm (H)
Packaging Speed	60-120 bags/min
Maximum Packaging Size	130mm (L) × 95mm (W) (Customizable forming shape, standard for regular warm patch)
Minimum Material Size	90mm (L) × 70mm (W) (Customizable forming shape, standard for mini warm patch)
Rated Voltage, Power & Frequency Modulation	AC380V, 6.5KW, 0-50Hz
Compressed Air Pressure	0.5-0.8Mpa (Air pump provided by user)
Compressed Air Consumption	≥0.36m³/h
Noise & Machine Weight	Low noise, 60-70dB; 800KG
Automatic Control Function	Material metering, bag filling, sealing full-automatic control
Power Consumption	5 kWh/hour

5. Core Advantages of The Solution

5.1 Full-automatic Unmanned Production, Extreme Cost Reduction & Efficiency Improvement

The entire line realizes full-process automatic linkage operation from material feeding and quantitative filling to lamination forming, inspection and packaging, requiring only 1-2 operators for patrol inspection and material replenishment, which greatly reduces labor costs. With stable operating speed and seamless process connection, the production capacity is 2-3 times higher than traditional semi-automatic lines, solving the problems of limited capacity and delayed delivery, supporting large-batch order undertaking and enterprise large-scale production.

5.2 High-precision Process Control, Standardized & Consistent Product Quality

Adopting multiple core technologies including servo precise quantitative feeding, closed-loop constant-temperature heat sealing, high-precision die-cutting and online intelligent defect removal, the line completely eliminates manual-induced problems such as uneven feeding, sealing air leakage, product misalignment and high defective rate. Controllable feeding error, constant sealing temperature and unified cutting size ensure highly consistent weight, thickness, tightness and heating effect of each batch of products with zero batch difference. The qualification rate reaches over 99.5%, fully meeting the high-standard quality inspection requirements of brand customers, supermarkets and e-commerce platforms.

5.3 Flexible Modular Design, Multi-scenario & Multi-function Application

The production line adopts an adjustable modular structure. Without replacing the whole equipment, it can flexibly switch production of regular warm patches, womb warm patches, moxibustion patches and special-shaped hot compress patches through simple parameter adjustment and rapid mold replacement. It adapts to both large-batch standardized mass production and small-batch customized production, improving equipment utilization, reducing equipment procurement and iteration costs, and matching the diversified production and operation needs of factories.

6. Solution Summary

Focusing on industry production pain points, this full-automatic warm patch production line solution takes automation, standardization, flexibility and low cost as the core, realizing full-process automatic production. It effectively solves the problems of high labor dependence, low capacity, poor quality and high material loss in traditional production. Suitable for small, medium and large factories, it supports both mass standardized production and multi-variety customized production. With strong practicability, high cost performance and simple maintenance, it helps enterprises realize intelligent upgrading, cost reduction, efficiency improvement and quality enhancement, and comprehensively improve market core competitiveness.