A latex glove manufacturing machine with microwave and heat treatment processes

WO2025188256A8PCT designated stage Publication Date: 2025-10-02PULLSUPPASIT KANOKRAT +1
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Patent Information

Application Number
PCT/TH2024/000007
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-06
Publication Date
2025-10-02

AI Technical Summary

Technical Problem

The existing air-dry oven process for manufacturing latex gloves is time-consuming, taking 40 minutes to 1 hour, and there is a need for a more efficient method that can reduce production time without compromising the quality of the gloves, specifically in terms of tensile strength and ductility.

Method used

A latex glove manufacturing machine incorporating microwave and heating processes, utilizing a Microwave Generator (Magnetron) to emit microwaves at specific frequencies for vulcanization and drying, reducing the process time to 1 to 10 minutes while maintaining comparable tensile strength and ductility.

Benefits of technology

The microwave-based process significantly reduces production time to less than 1 minute per process step, achieving comparable tensile strength and ductility to traditional methods, thereby enhancing efficiency without sacrificing glove quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The latex glove manufacturing machine with microwave and heating processes consists of the Main Oven (10), the Spiral Conveyor (40) in which the surrounding area is equipped with Glove Molds (50). One position of the latex glove manufacturing machine is equipped with a Microwave Generator (Magnetron) (60). At least one position functions to emit microwaves into the Main Oven (10), so one or a combination of more than of the selected materials from nitrile rubber, latex rubber, vinyl material and synthetic rubber mixed together in the Glove Molds (50) is set in the shape of a glove. The Microwave Generator (Magnetron) (60) is connected to one or more waveguides at the end of the waveguide with an exit door to the Main Oven (10). The Microwave Generator (Magnetron) (61) generates a frequency of 915 megahertz (MHz) or the Microwave Generator (Magnetron) (61) generates a frequency of 2.4 to 2.5 gigahertz (GHz). The process of creating frequencies for drying produces vulcanization.
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Description

[0001] A LATEX GLOVE MANUFACTURING MACHINE WITH MICROWAVE AND HEAT

[0002] TREATMENT PROCESSES

[0003] Technical Field

[0004] Engineering related to latex glove manufacturing machines with 3 microwave and heating processes. Art

[0005] The manufacturing process for medical and all-purpose latex gloves for nitrile rubber latex vinyl uses an air-dry oven process. Potentially important are the process of washing the printing mold, drying the printed mold, dipping in coagulant, drying the coagulant, dipping in rubber compound, dampening the glove film, curling the edges of the glove, washing the glove film, drying, dipping in powder, which is optional. Drying takes about 40 minutes to 1 hour, which has the disadvantage of being time-consuming, so it is necessary to find a microwave drying method in every process, which will take only 5 to 10 minutes to produce in total. The properties of the gloves heated by microwave technology are engineering characteristics. In other words, tensile strength and ductility are comparable to the previous air-dry oven method, but it can save substantial time in the production process. of Embodiments

[0006] The latex glove manufacturing machine with microwave and oven heating processes consisting of the following: the Main Oven (10) a Spiral Conveyor Rail (40) around which the Glove Mold (50) is installed. At least one of the positions on the latex glove manufacturing machine is equipped with a Microwave Generator (Magnetron) (60) At least one position acts to emit microwave waves into the Main Oven (10) to provide one or a combination of more than one of the following selected materials: nitrile rubber, latex rubber, vinyl material, synthetic rubber, one or more of the combinations contained in the Glove Mold (50) to be set in the shape of a glove. The Microwave Generator (Magnetron) (60) is connected to one or more waveguides. At the outlet end of the waveguide is an exit door into the main oven (10). The Microwave Generator (Magnetron) (61) generates a wave frequency of 915 megahertz (MHz) or generates a wave frequency of 2.4 to 2.5 Gigahertz (GHz). The process of creating frequencies for drying produces a vulcanization process. The aim of this invention is to have a latex glove manufacturing machine with microwave and heating processes that can reduce the production time for medical latex gloves and all-purpose latex gloves with the ability to control glove quality either in the laboratory and / or the glove production line. The primary aim is heating with microwaves in the vulcanization process, namely, in an air-dry oven for approximately 30 minutes. When microwaves are used, the process takes approximately 1 to 10 minutes for electrical power of 200 to 2,000 volts. The gloves will continue to maintain tensile strength and ductility comparable to the original heating process.

[0007] The second aim is microwave drying for microwave application for use in the production line of glove molds, drying and increasing the mold temperature by hand, while heating facilitates the coagulant and pre-heating the rubber allows the edges of the rubber gloves to be rolled, with each process taking less than 1 minute.

[0008] Full Disclosure of Invention

[0009] Figure 1, Figure 2 and Figure 3 show the components of the latex glove manufacturing machine with microwave and heating processes consisting of the following:

[0010] The Main Oven (10) is a chamber with closed walls to create partitions from other chambers.

[0011] The Wave Protection Chamber (In) (20) is an inlet chamber that functions as a barrier to prevent microwaves from spreading outward. The chamber has closed walls to partition it from other chambers.

[0012] The Wave Protection Chamber (Out) (30) is an outlet chamber that functions as a barrier to prevent microwaves from spreading outward. The chamber has closed walls to partition it from other chambers.

[0013] The Main Oven (10), the Wave Protection Chamber (In) (20), and the Wave Protection Chamber (Out) (30) are connected in one area to form a Spiral Conveyor rail (40).

[0014] A Spiral Conveyor Rail (40) with one position on the Spiral Conveyor Rail (40) that is equipped with a number of Glove Molds (50) installed all around from the starting point to the end point, with at least one area of the Spiral Conveyor Rail (40) is shaped into the Wave Protection Chamber (In) (20), the main oven (10) and the Wave Protection Chamber (Out) (30), respectively.

[0015] The Glove Molds (50) are glove-shaped molds with optional materials to choose one or a combination of more than one from nitrile rubber, latex rubber, vinyl, synthetic rubber, pre-coated with nitrile rubber, latex rubber or vinyl materials with one or a combination of more than one synthetic rubber to set in the shape of a glove.

[0016] The Spiral Conveyor Rail (40) is connected to a Chain Conveyor (41) with a drive power originating from the Chain Drive Unit (42), which has a Motor (43) to rotate the Spiral Conveyor Rail (40) into the circular section to convey the Glove Mold (50) into the Main Oven (10) and out of the Main Oven (10).

[0017] One position of the latex glove manufacturing machine is equipped with the Microwave Generator (Magnetron) (60). At least one position functions to emit microwaves into the Main Oven, (10) so the one material or combination of more than one materials selected from nitrile rubber, latex rubber, vinyl or synthetic rubber is mixed together in the glove molds (50) to be set in the shape of a glove.

[0018] The Microwave Generator (Magnetron) (60) is an electrical device that generates microwaves, whereby the Microwave Generator (Magnetron) (60) is connected to one or more waveguides at the end of the waveguide with an exit door into the Main Oven (10).

[0019] In this invention, the Microwave Generator (Magnetron) (61) is equipped with Waveguide 1 (71).

[0020] The Microwave Generator (Magnetron) (61) equipped with Waveguide 1 (71) is in the first position on the Spiral Conveyor Rail (40).

[0021] Figure 2 shows the Microwave Generator (Magnetron) (60) connected to a cooling system consisting of the following:

[0022] The Coolant Tank (70) equipped with an Evaporator (80) has a cooling pad functioning to take in the coolant flowing from the Coolant Pipe Conveyor (81). One position of the Evaporator (80) is equipped with a fan (73) functioning to blow to exchange heat between the cold air and the coolant to lower the temperature of the coolant and flow back into the Coolant Tank (70).

[0023] One position of the Coolant Tank (70) is connected to the Water Pump (90) functioning to convey water from the Coolant Tank (70) through the Coolant Conveyor Pipe Outlet (82). At least one Coolant Conveyor Pipe Outlet (82) flows either through the Microwave Generator (Magnetron) (60) or the waveguide or a combination of both.

[0024] The Coolant Conveyor Pipe Outlet (82) consists of the following:

[0025] Coolant Conveyor Pipe Outlet 1 (91) that flows through the Microwave Generator (Magnetron) (61).

[0026] Coolant Conveyor Pipe Outlet 3 (93) that flows through Waveguide 1 (71).

[0027] The Coolant Conveyor Pipe Outlet (82) creates a broad surface for contact with the surface of the Microwave Generator (Magnetron) (61) to increase cooling efficiency.

[0028] Figure 3 shows a drawing with the following work procedures: a. The Microwave Generator (Magnetron) (61) generating a frequency of 915 megahertz MHz, or; b. The Microwave Generator (Magnetron) (61) generating a frequency of 2.4 to 2.5 gigahertz (GHz).

[0029] The process of generating frequency for drying produces vulcanization.

[0030] The Micro wave Generator (Magnetron) (61) generating a frequency of 915 megahertz (MHz) uses heating power within a range of approximately 200 watts to 2000 watts and takes 1 to 10 minutes.

[0031] The application of microwave heating for the production of latex gloves by using microwave waves allows the initial heating of the coagulant for the rubber, so the edges of the rubber gloves can be rolled. Each process takes less than 1 minute for the spiral conveyor rail (40) to move in a spiral motion at a fixed speed or alternate slow and fast speeds, so the rubber gloves receive microwave waves at specified intervals. Brief Description of Drawings

[0032] Figure 1 shows the components of the rubber glove manufacturing machine with microwave and heating processes in this invention.

[0033] Figure 2 shows the Microwave Generator (Magnetron) (60) connected to the cooling system in this invention.

[0034] Figure 3 shows the working process of the rubber glove manufacturing machine with microwave and heating processes.

[0035] Best Invention Method

[0036] As already stated in the full disclosure of the invention.

Claims

Claims1. Latex glove manufacturing machine with microwave and heating processes has the following characteristics:The main oven (10) is a chamber with closed walls to create partitions from other chambers.A spiral conveyor rail (40) that is a conveyor rail in which one of the positions of the spiral conveyor rail (40) is equipped with a number of glove molds (50) all around from the starting point to the end. At least one area of the spiral conveyor rail (40) is shaped into the main oven (10).The Glove Molds (50) are glove-shaped molds with the following materials from which to choose one or a combination of more than one: nitrile rubber, latex rubber, vinyl and synthetic rubber pre-coated with one or a combination of more than one of the following materials: nitrile rubber, latex rubber or vinyl for synthetic rubber to be set in a glove-shaped mold.The spiral conveyor rail (40) is connected to a chain conveyor (41) equipped with drive power originating from the chain drive unit (42) with a motor (43) as a component functioning to rotate the spiral conveyor rail (40) into the circular section to convey the glove molds (50) into the main oven (10) and out of the oven (10).Special Characteristics consist of the following:At least one position of the rubber glove manufacturing machine is equipped with at least one Microwave Generator (Magnetron) (60) functioning to emit microwave waves into the main oven (10), so one or a combination of more than one of the materials selected from nitrile rubber, latex rubber, vinyl materials, or synthetic rubber mixed in the glove molds (50) can set in the shape of a glove.The Microwave Generator (Magnetron) (60) is an electrical device that generates microwaves, whereby the Microwave Generator (Magnetron) (60) is connected to one or more waveguides at the end of the waveguide with an exit door to the main oven (10).

2. The latex glove manufacturing machine with microwave and heating processes inClaim 1, is such that:On the first side, the Main Oven (10) has a Wave Protection Chamber (In) (20) functioning as an incoming wave chamber that acts as a protective part to prevent microwave waves from spreading outward in the form of a chamber with closed walls to create a partition from other chambers.One the second side, the main oven (10) is equipped with a Wave Protection Chamber (Out) (30) functioning as an outgoing wave chamber that acts as a protective part to prevent microwave waves from spreading outward in the form of a chamber with closed walls to create a partition from other chambers.

3. The latex glove manufacturing machine with microwave and heating processes in Claim 2 is such that the Main Oven (10), the Wave Protection Chamber (In) (20), the Wave Protection Chamber (Out) (30) are connected in one area to form the conveying route of the Spiral Conveyor Rail (40).

4. The latex glove manufacturing machine with microwave and heating processes in Claim 1 is such that at least one area of the spiral conveyor rail (40) is shaped into the Wave Protection Chamber (In) (20), the Main Oven (10) and the Wave Protection Chamber (Out) (30), respectively.

5. The latex glove machine with microwave and heating processes in Claim 1 is such that the Microwave Generator (Magnetron) (60) consists of the Microwave Generator (Magnetron) (61) equipped with Waveguide 1 (71).

6. The latex glove manufacturing machine with microwave and heating processes in Claim 5 is such that the Microwave Generator (Magnetron) (61) equipped with Waveguide 1 (71) is positioned first on the Spiral Conveyor Rail (40).

7. The latex glove manufacturing machine with microwave and heating processes in Claim 1 is such that the Microwave Generator (Magnetron) (60) is connected to a cooling system consisting of the following:The Coolant Tank (70) equipped with an Evaporator (80) has a cooling pad functioning to taken in the coolant flowing from the Coolant Conveyor Inlet Pipe (81). Oneposition of the Evaporator (80) is equipped with a Fan (73) functioning to blow and exchange heat between the cold air and the coolant to lower the temperature and flow back into the Coolant Tank (70).One position of the Coolant Tank (70) is connected to the Water Pump (90) and conveys water from the Coolant Tank (70) through the Coolant Conveyor Pipe Outlet (82), with at least one Coolant Conveyor Pipe Outlet (82) flowing either through the Microwave Generator (Magnetron) (60) or the waveguide, or a combination of both.

8. The latex glove manufacturing machine with microwave and heating processes in Claim 7 is such that the Coolant Conveyor Pipe Outlet (82) consists of the following:Coolant Conveyor Pipe Outlet 1 (91) flowing through the Microwave Generator (Magnetron) (61).Coolant Conveyor Pipe Outlet 3 (93) flowing through Waveguide 1 (71).The Coolant Conveyor Pipe Outlets (82) create a broad surface for contact with the Microwave Generator (Magnetron) (61) to increase cooling efficiency.

9. The latex glove manufacturing machine with microwave and heating processes in Claims 1-8 is such that the working procedures are as follows: a. The Microwave Generator (Magnetron) (61) generates a frequency of 915 megahertz MHz, or b. The Micro wave Generator (Magnetron) (61) generates a frequency of 2.4 to 2.5 gigahertz (GHz).The process of generating frequency for drying produces vulcanization.

10. The latex glove manufacturing machine with microwave and heating processes in Claim 9 is such that:The Microwave Generator (Magnetron) (61) generating a frequency of 915 megahertzMHz, uses a heating power in the range of approximately 200 watts to 2000 watts and takes 1 to 10 minutes.The Spiral Conveyor Rail (40) moves in a spiral motion at a fixed speed or at slow and fast speeds, alternating back and forth so the rubber gloves receive microwave waves at set intervals.