A seamless workwear production process and equipment formed by a traceless hot pressing process

Abstract

The application discloses a kind of no trace hot-pressing process forming integrated tooling garment production process and equipment, and relates to garment production technical field.The workbench is installed with controller in one side, the top of workbench is provided with notch in the center, negative pressure mechanism is arranged in notch, and support plate is fixedly connected in both sides of the top of workbench.The application is provided with cooling mechanism, in use process, when the temperature of cooling ring is too high after hot-pressing forming is completed, water pump is started, electromagnetic valve is opened, hot water is pumped from cooling ring into hot water tank, hot water passage is closed and cold water hose passage is opened, cold water is pumped from cold water tank into cooling ring to quickly take away heat on the surface of garment.The device can directly drop to the surface of garment for forced cooling after hot-pressing is completed, garment does not need to be transferred to cooling frame, seam flatness is improved, and subsequent ironing correction is not needed.

Description

Technical Field

[0001] This invention relates to the field of garment production technology, specifically to a seamless hot-pressing process for producing one-piece workwear and its equipment. Background Technology

[0002] As the modern garment manufacturing industry develops towards high quality and functionality, one-piece workwear (such as medical protective clothing, high-performance sports tights and special work clothes) is increasingly in demand due to its advantages such as seamless splicing, strong protection and comfortable wearing. Such clothing usually uses a seamless heat pressing process to replace traditional needle and thread sewing to avoid protective failure or friction discomfort caused by needle holes.

[0003] However, existing equipment, when dealing with production scenarios of integrated workwear of different specifications, suffers from problems due to the relatively independent internal cooling components and molding mechanism of the existing equipment, which lack a linkage adjustment mechanism. During use, the hard mold cannot automatically compensate, resulting in obvious marks or even punctures on thin material areas, while the pressure on thick material areas is insufficient and the adhesion is not strong. At the same time, the cooling speed after hot pressing is slow and the temperature is uncontrollable, which can easily lead to seam springback or wrinkles due to uneven cooling, requiring subsequent ironing to correct. Therefore, in response to this situation, we propose a more convenient and practical seamless hot pressing process for the production of integrated workwear and garments, as well as its equipment, to meet the usage requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a seamless hot-pressing process for producing one-piece workwear and related equipment, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a seamless hot-pressing process for producing integrated workwear and garments, comprising a workbench, a controller mounted on one side of the workbench, a slot at the center of the top of the workbench containing a negative pressure mechanism, support plates fixedly connected to both sides of the top of the workbench, multiple equidistant conveying rollers rotatably connected to one side of the support plates, a first motor mounted on one side of the support plates, the output end of the first motor connected to the conveying rollers, a belt mounted on the outer wall of the conveying rollers, a forming mechanism and a cooling mechanism mounted on one side of the top of the workbench, the cooling mechanism comprising a cooling ring, a temperature sensor mounted on one side of the cooling ring, a sliding plate fixedly connected to one side of the cooling ring, a through hole at the top of the sliding plate, a lead screw threaded into the through hole, fixed blocks connected to both ends of the lead screw, a second motor mounted on the top of the fixed blocks, the output end of the second motor connected to the lead screw, and a cooling assembly mounted on one side of the cooling ring.

[0006] Furthermore, the negative pressure mechanism includes a fixed frame, which is connected to the workbench slot. A negative pressure plate is fixedly connected to the top of the fixed frame, and the top of the negative pressure plate has multiple equidistant ventilation holes.

[0007] Furthermore, a funnel is fixedly connected to the bottom of the fixed frame, and a connecting pipe is fixedly connected to the bottom of the funnel. A negative pressure motor is installed at one end of the connecting pipe, and the negative pressure motor is connected to the worktable.

[0008] Furthermore, the forming mechanism includes a mounting frame connected to a fixing block. A fixing bolt is installed on one side of the bottom of the mounting frame, and the fixing bolt is connected to the worktable. A sliding groove is provided on one side of the top of the mounting frame, and the sliding groove is slidably connected to a sliding plate.

[0009] Furthermore, a cylinder is installed on one side of the top of the mounting bracket, and a mounting plate is fixedly connected to the output end of the cylinder. Several equally spaced heaters are installed on the top of the mounting plate.

[0010] Furthermore, a conductive plate is fixedly connected to one side of the mounting plate, and a heat-resistant silicone plate is fixedly connected to one side of the conductive plate.

[0011] Furthermore, the cooling assembly includes a hot water hose and a cold water hose, one end of which is connected to a cooling ring, and a solenoid valve is installed on the outer wall of the hot water hose and the cold water hose.

[0012] Furthermore, the other ends of the hot water hose and the cold water hose are respectively fixedly connected to a cold water tank and a hot water tank, and a water pump is installed on the outer wall of the hot water hose and the cold water hose.

[0013] Furthermore, a through hole is provided on one side of the hot water hose, and a heat exchange tube is installed in the through hole. One end of the heat exchange tube is connected to the cold water hose. A support frame is fixedly connected to one side of the hot water hose and the cold water hose, and fans are installed on both sides of the support frame.

[0014] Furthermore, a seamless hot-pressing process for producing one-piece workwear uses any of the seamless hot-pressing process-forming equipment described above.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This seamless hot-pressing process for producing one-piece workwear utilizes a negative pressure mechanism, a forming mechanism, and a cooling mechanism. During operation, after hot pressing, a second motor is activated, driving a lead screw to rotate and moving a sliding plate along a chute. This causes the cooling ring to descend close to the garment surface, covering the conductive plate and silicone plate. The controller then monitors the temperature inside the cooling ring based on a temperature sensor. When the cooling ring temperature is too high, a water pump starts, and a solenoid valve opens, pumping hot water from the cooling ring into a hot water tank. The hot water path is closed, and the cold water hose path is opened, pumping cold water from the cold water tank into the cooling ring to quickly remove heat from the garment surface. During this process, heat exchange tubes facilitate heat exchange between the hot and cold water to recover heat energy, and a fan assists in cooling the pipes. This device allows the cooling ring to descend directly to the garment surface for forced cooling after hot pressing, eliminating the need to transfer the garment to a cooling rack, improving seam smoothness, and eliminating the need for subsequent ironing or correction.

[0016] Meanwhile, the forming mechanism can undergo elastic deformation during hot pressing, and can automatically adjust the local compression amount according to the thickness difference of different areas of the cut piece, avoiding obvious marks or even punctures caused by rigid pressure in traditional hard molds. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall mechanism structure of the present invention; Figure 2 This is a side view of the overall mechanism of the present invention; Figure 3 This is a schematic diagram of the negative pressure mechanism of the present invention; Figure 4 This is a schematic diagram of the molding mechanism structure of the present invention; Figure 5 This is a schematic diagram of the cooling mechanism of the present invention.

[0018] In the diagram: 1. Workbench; 2. Controller; 3. Negative pressure mechanism; 301. Fixing frame; 302. Negative pressure plate; 303. Ventilation hole; 304. Funnel; 305. Connecting pipe; 306. Negative pressure motor; 4. Support plate; 5. Conveying roller; 6. First motor; 7. Belt; 8. Forming mechanism; 801. Mounting bracket; 802. Fixing bolt; 803. Slide groove; 804. Cylinder; 805. Mounting plate; 806. Heating element. 807. Conducting plate; 808. Silicone plate; 9. Cooling mechanism; 901. Cooling ring; 902. Temperature sensor; 903. Sliding plate; 904. Fixing block; 905. Lead screw; 906. Second motor; 907. Hot water hose; 908. Cold water hose; 909. Solenoid valve; 910. Cold water tank; 911. Hot water tank; 912. Water pump; 913. Heat exchange tube; 914. Support frame; 915. Fan. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the production process of workwear, seamless hot pressing molding equipment is required. The hot pressing molding equipment provided by this invention is specifically designed for the integrated molding of multi-layer cut pieces. During the production process using this equipment, the working environment needs to be controlled at a workshop temperature of 20-28℃ to ensure the optimal adhesion and flow characteristics of the hot melt adhesive film. Training in hot pressing process is required, and anti-scalding gloves must be worn. When the equipment is running, it is forbidden to put your hands into the hot pressing area. Before starting the machine, the liquid level of the hot and cold water tank 911 and the sealing of the negative pressure system must be checked. It is strictly forbidden to work near flammable materials.

[0021] like Figures 1-5 As shown, the present invention provides a technical solution: a seamless hot pressing process for producing one-piece workwear and its equipment; Example 1: A workbench 1 is included. A controller 2 is installed on one side of the workbench 1. A slot is opened in the center of the top of the workbench 1, and a negative pressure mechanism 3 is installed in the slot. Support plates 4 are fixedly connected to both sides of the top of the workbench 1. Multiple equidistant conveyor rollers 5 are rotatably connected to one side of the support plates 4. A first motor 6 is installed on one side of the support plates 4. The output end of the first motor 6 is connected to the conveyor rollers 5. A belt 7 is installed on the outer wall of the conveyor rollers 5. A forming mechanism 8 and a cooling mechanism 9 are provided on one side of the top of the workbench 1. The cooling mechanism 9 includes a cooling ring 901. A temperature sensor 902 is installed on one side of the cooling ring 901. A sliding plate 903 is fixedly connected to one side of the cooling ring 901. A through hole is opened at the top of the sliding plate 903. A lead screw 905 is threaded into the through hole. The two ends of the lead screw 905 are connected to a fixing block 904. A second motor 906 is installed on the top of the fixing block 904. The output end of the second motor 906 is connected to the lead screw 905. A cooling assembly is provided on one side of the cooling ring 901.

[0022] like Figure 3 As shown, the negative pressure mechanism 3 includes a fixed frame 301, which is connected to the slot of the workbench 1. A negative pressure plate 302 is fixedly connected to the top of the fixed frame 301. The top of the negative pressure plate 302 has multiple equidistant ventilation holes 303. A funnel 304 is fixedly connected to the bottom of the fixed frame 301. A connecting pipe 305 is fixedly connected to the bottom of the funnel 304. A negative pressure motor 306 is installed at one end of the connecting pipe 305. The negative pressure motor 306 is connected to the workbench 1.

[0023] It should be noted that during use, the negative pressure motor 306 is first started. The motor draws air from the inside of the fixed frame 301 through the connecting pipe 305 and the funnel 304, so that the cavity between the negative pressure plate 302 and the fixed frame 301 forms a negative pressure environment. The operator places the cut multi-layered fabric pieces on the surface of the negative pressure plate 302 in sequence. Since the negative pressure plate 302 has multiple equidistant ventilation holes 303, atmospheric pressure tightly adheres the fabric pieces to the surface of the negative pressure plate 302, and there is no relative slippage between the layers. The suction force of the negative pressure motor 306 can be adjusted according to the fabric thickness through the controller 2. The negative pressure mechanism 3 can realize the rapid, uniform and non-destructive positioning of the fabric pieces.

[0024] like Figure 4 As shown, the molding mechanism 8 includes a mounting frame 801, which is connected to a fixing block 904. A fixing bolt 802 is installed on one side of the bottom of the mounting frame 801, and the fixing bolt 802 is connected to the worktable 1. A sliding groove 803 is opened on one side of the top of the mounting frame 801, and the sliding groove 803 is slidably connected to the sliding plate 903. A cylinder 804 is installed on one side of the top of the mounting frame 801, and a mounting plate 805 is fixedly connected to the output end of the cylinder 804. Several equally spaced heaters 806 are installed on the top of the mounting plate 805. A conductive plate 807 is fixedly connected to one side of the mounting plate 805, and a heat-resistant silicone plate 808 is fixedly connected to one side of the conductive plate 807.

[0025] It should be noted that during use, controller 2 activates cylinder 804, and the output end of cylinder 804 pushes mounting plate 805 downward. Mounting plate 805 drives conduction plate 807 and heat-resistant silicone plate 808 to descend synchronously. At the same time, the corresponding heater 806 is activated according to the body part corresponding to the garment. Heat is evenly transferred to the surface of heat-resistant silicone plate 808 through conduction plate 807. When heat-resistant silicone plate 808 presses against the multi-layer cut pieces adsorbed on the negative pressure plate 302 below, the hot melt adhesive film melts under heat and penetrates into the gaps between fabric fibers under pressure, making it resistant to heat. The elastic deformation characteristics of the hot silicone plate 808 can automatically compensate for the thickness differences of the cut pieces, such as the edges of pockets and the flat fabric, so that the pressure in each area tends to be uniform. After the pressure holding time is usually 20-40 seconds, the heater 806 stops heating, the cylinder 804 maintains the pressure and waits for the cooling mechanism 9 to intervene. After the film is cured, the cylinder 804 retracts, completing the molding process. The molding mechanism 8 can undergo elastic deformation during hot pressing, and can automatically adjust the local compression amount according to the thickness differences of different areas of the cut pieces, avoiding the obvious marks or even puncture problems caused by rigid pressure of traditional hard molds.

[0026] like Figure 5As shown, the cooling assembly includes a hot water hose 907 and a cold water hose 908. One end of the hot water hose 907 and the cold water hose 908 is connected to a cooling ring 901. A solenoid valve 909 is installed on the outer wall of the hot water hose 907 and the cold water hose 908. The other ends of the hot water hose 907 and the cold water hose 908 are respectively fixedly connected to a cold water tank 910 and a hot water tank 911. A water pump 912 is installed on the outer wall of the hot water hose 907 and the cold water hose 908. A through hole is opened on one side of the hot water hose 907, and a heat exchange tube 913 is installed in the through hole. One end of the heat exchange tube 913 is connected to the cold water hose 908. A support frame 914 is fixedly connected to one side of the hot water hose 907 and the cold water hose 908. Fans 915 are installed on both sides of the support frame 914.

[0027] It is important to note that during use, after the hot pressing molding is completed, the second motor 906 is started, driving the lead screw 905 to rotate, which in turn moves the sliding plate 903 along the slide groove 803, causing the cooling ring 901 to descend close to the garment surface and cover the conduction plate 807 and the silicone plate 808. Subsequently, the controller 2 detects the temperature inside the cooling ring 901 according to the temperature sensor 902. When the temperature of the cooling ring 901 is too high, the water pump 912 is started, the solenoid valve 909 is opened, and hot water is pumped from the cooling ring 901 into the hot water tank 911. The hot water passage is closed and the cold water hose passage 908 is opened, and cold water is pumped from the cold water tank 910 into the cooling ring 901 to quickly remove the heat from the garment surface. During this process, the heat exchange tube 913 allows the hot water and cold water to exchange heat to recover heat energy, and the fan 915 assists in heat dissipation of the pipes. The cooling mechanism 9 can achieve precise and controllable cooling process, ensuring stable quality in mass production.

[0028] During use, the first motor 6 is started, driving the conveyor roller 5 and belt 7 to rotate, conveying the cut pieces to the area directly below the forming mechanism 8. The operator stacks multiple layers of cut pieces on the surface of the negative pressure plate 302, starts the negative pressure motor 306, and draws air through the ventilation hole 303 to tightly adsorb and fix the cut pieces. The cylinder 804 pushes the mounting plate 805 down, driving the conduction plate 807 and the heat-resistant silicone plate 808 to press down synchronously. At the same time, the corresponding heater 806 is started according to the garment part. The heat is evenly transferred to the surface of the silicone plate 808 through the conduction plate 807, pressurizing and heating the cut pieces to melt and bond the hot melt adhesive film. After the hot pressing is completed, the second motor 906 is started to drive the lead screw 905 to rotate, driving the sliding plate 903 to move along the slide groove 803, so that the cooling ring 901 descends to be close to the surface of the garment. Temperature sensor 902 monitors in real time. When the temperature is too high, water pump 912 starts and solenoid valve 909 switches to pump hot water into hot water tank 911. Then, cold water passage is opened to pump cold water from cold water tank 910 into cooling ring 901, which quickly removes heat from the surface of the garment. After hot pressing, the cooling ring 901 can directly descend to the surface of the garment for forced cooling without transferring the garment to a cooling rack, thus improving the smoothness of the seams and eliminating the need for subsequent ironing and correction.

[0029] Example 2: A seamless hot-pressing process for producing one-piece workwear garments; Taking the processing of one-piece medical protective suits as an example, the process includes the following steps: Step 1: Pre-processing and stacking of cut pieces Based on the pattern design of the integrated workwear, the fabric is cut. For the seam area, a layer of thermoplastic polyurethane (TPU) hot melt adhesive film with a thickness of 0.08mm-0.12mm is pre-laid. The fabric layer and the adhesive film are stacked in the process sequence to ensure that the edges of the cut pieces are aligned and there are no wrinkles between the layers. Step 2: Negative Pressure Positioning The stacked multi-layer cut pieces are transported to the processing table, and the negative pressure mechanism 3 is activated. The air is extracted through the micro-hole array on the table, and atmospheric pressure is used to tightly compress and fix the multi-layer cut pieces on the breathable substrate. Step 3: Elastic Adaptive Hot Pressing The cut pieces are pressed down using a mold with an elastic, heat-resistant silicone plate (808). Pressure control applies a uniform pressure of 0.3MPa-0.4MPa. Due to the elastic deformation capability of the silicone plate 808, it can automatically compensate for the thickness difference between the splicing of cut pieces (such as pockets and reinforcing patches) and the single-layer flat fabric, avoiding the thin material being crushed through or the thick material being under insufficient pressure due to sudden changes in thickness caused by traditional metal hard molds.

[0030] Temperature control is implemented according to ergonomic zone temperature control. The temperature is set at 100-130℃ for the torso plane area and 130-150℃ for the joint movement areas (elbows and knees) to meet the tensile force requirements of different areas. Heat is evenly transferred to the silicone plate 808 through a high thermal conductivity metal plate, so that the hot melt adhesive film reaches a viscous flow state and penetrates into the gaps between the fabric fibers.

[0031] Maintain the pressure for 25-35 seconds to ensure the adhesive layer fully wets the fabric.

[0032] Step 4: In-situ stepped cooling and curing After the hot pressing and pressure holding are completed, no workstation transfer is performed; the cooling process is executed directly in the original position. Cooling is initiated, and the cooling mechanism 9 descends to be close to the surface of the cut piece, covering the entire hot-pressing area; In the cascade heat exchange, circulating cooling water is first introduced to carry away the high-temperature heat from the mold and cut pieces. The generated high-temperature hot water is not discharged directly but enters the heat storage unit. At the same time, the heat exchanger is used to transfer the heat from the high-temperature water to the cold water that is about to enter the cooling circuit, thus realizing waste heat recovery. Forced air cooling involves using a powerful convection fan outside the piping to accelerate heat exchange efficiency. The effect is that the adhesive layer at the joint is rapidly cooled to below the glass transition temperature under continuous pressure, and its physical form is instantly fixed, completely eliminating defects such as joint lifting and wavy lines caused by traditional natural cooling or transfer cooling.

[0033] Step 5: Unloading and Post-processing After the cooling cycle is completed (approximately 90s-120s), the negative pressure adsorption is released, the finished product is taken out, and after testing, the seam peel strength reaches more than 35N / cm, and there are no pinholes or seam marks, so no further ironing or correction process is required.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A seamless hot-press forming integrated workwear production equipment, comprising a workbench (1), wherein a controller (2) is installed on one side of the workbench (1), characterized in that: The workbench (1) has a slot at the center of its top, and a negative pressure mechanism (3) is installed in the slot. Support plates (4) are fixedly connected to both sides of the top of the workbench (1). Multiple equidistant conveying rollers (5) are rotatably connected to one side of the support plates (4). A first motor (6) is installed on one side of the support plates (4). The output end of the first motor (6) is connected to the conveying rollers (5). A belt (7) is installed on the outer wall of the conveying rollers (5). A forming mechanism (8) and a cooling mechanism (9) are provided on one side of the top of the workbench (1). The cooling mechanism (9) includes a cooling... A cooling ring (901) is provided. A temperature sensor (902) is installed on one side of the cooling ring (901). A sliding plate (903) is fixedly connected to one side of the cooling ring (901). A through hole is opened on the top of the sliding plate (903). A lead screw (905) is threaded into the through hole. The two ends of the lead screw (905) are connected to a fixing block (904). A second motor (906) is installed on the top of the fixing block (904). The output end of the second motor (906) is connected to the lead screw (905). A cooling component is provided on one side of the cooling ring (901).

2. The integrated workwear production equipment formed by seamless hot pressing process according to claim 1, characterized in that: The negative pressure mechanism (3) includes a fixed frame (301), which is connected to the slot of the workbench (1). A negative pressure plate (302) is fixedly connected to the top of the fixed frame (301), and a plurality of equidistant ventilation holes (303) are opened on the top of the negative pressure plate (302).

3. The integrated workwear production equipment formed by seamless hot pressing process according to claim 2, characterized in that: The bottom of the fixed frame (301) is fixedly connected to a funnel (304), the bottom of the funnel (304) is fixedly connected to a connecting pipe (305), a negative pressure motor (306) is installed at one end of the connecting pipe (305), and the negative pressure motor (306) is connected to the workbench (1).

4. The integrated workwear production equipment formed by seamless hot pressing process according to claim 1, characterized in that: The forming mechanism (8) includes a mounting frame (801), which is connected to a fixing block (904). A fixing bolt (802) is installed on one side of the bottom of the mounting frame (801), which is connected to the worktable (1). A sliding groove (803) is provided on one side of the top of the mounting frame (801), which is slidably connected to the sliding plate (903).

5. The integrated workwear production equipment formed by seamless hot pressing process according to claim 4, characterized in that: A cylinder (804) is installed on one side of the top of the mounting bracket (801). A mounting plate (805) is fixedly connected to the output end of the cylinder (804). Several equally spaced heaters (806) are installed on the top of the mounting plate (805).

6. The integrated workwear production equipment formed by seamless hot pressing process according to claim 5, characterized in that: A conductive plate (807) is fixedly connected to one side of the mounting plate (805), and a heat-resistant silicone plate (808) is fixedly connected to one side of the conductive plate (807).

7. The integrated workwear production equipment formed by seamless hot pressing process according to claim 1, characterized in that: The cooling assembly includes a hot water hose (907) and a cold water hose (908), one end of which is connected to a cooling ring (901), and a solenoid valve (909) is installed on the outer wall of the hot water hose (907) and the cold water hose (908).

8. The integrated workwear production equipment formed by seamless hot pressing process according to claim 7, characterized in that: The other ends of the hot water hose (907) and cold water hose (908) are respectively fixedly connected to a cold water tank (910) and a hot water tank (911), and a water pump (912) is installed on the outer wall of the hot water hose (907) and cold water hose (908).

9. The integrated workwear production equipment formed by seamless hot pressing process according to claim 7, characterized in that: A through hole is provided on one side of the hot water hose (907), and a heat exchange tube (913) is installed in the through hole. One end of the heat exchange tube (913) is connected to the cold water hose (908). A support frame (914) is fixedly connected to one side of the hot water hose (907) and the cold water hose (908). Fans (915) are installed on both sides of the support frame (914).

10. A seamless hot-pressing process for producing one-piece workwear, characterized in that: The integrated workwear production equipment using any one of the seamless hot pressing processes described in claims 1-9 was used.

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