Prevention of deep vein thrombosis of foot cover, leg cover production process

Abstract

The application provides a production process of a foot cover and a leg cover for preventing deep vein thrombosis. The foot cover comprises a wrapping part I and a bandage. The leg cover comprises a square wrapping part II, and the wrapping part II is provided with a connecting part on one side. The wrapping part I, the bandage and the wrapping part II are cut and welded by an ultrasonic welding machine provided with a roller mold. The roller mold comprises a cylindrical mold body, and a circle of roller positioning teeth is arranged on the surface of the two ends of the mold body. A cutting knife for cutting cloth is arranged on the surface of the mold body between the roller positioning teeth on the two ends. The ultrasonic welding machine is provided with replaceable roller molds corresponding to the wrapping part I, the bandage and the wrapping part II. The technical scheme of the application can replace the original sewing process, and the ultrasonic production process can improve the production efficiency and save raw materials.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more particularly to a manufacturing process for foot and leg covers for preventing deep vein thrombosis. Background Technology

[0002] The existing limb pressure sleeves, including the foot sleeves and Huntley leg sleeves, are produced using a sewing process, which requires cutting and then sewing. This production process is inefficient and results in a small daily production volume. Summary of the Invention

[0003] In response to the aforementioned technical problem of low production efficiency in sewing foot and leg covers, a production process for foot and leg covers to prevent deep vein thrombosis is provided, which can replace the original sewing process. The use of ultrasonic production technology can improve production efficiency and save raw materials.

[0004] The technical means employed in this invention are as follows:

[0005] A manufacturing process for foot and leg sleeves to prevent deep vein thrombosis.

[0006] The foot sleeve includes an oval-shaped wrapping part I and a strap located on one side of the wrapping part I;

[0007] The leg sleeve includes a square wrapping part II, and a plurality of extending connecting parts are provided on one side of the wrapping part II;

[0008] The wrapping part I, the strap and the wrapping part II are respectively cut and welded into shape using an ultrasonic welding machine equipped with roller molds;

[0009] The roller mold is rotatably mounted on the ultrasonic welding machine for cutting fabric; the roller mold includes a cylindrical mold body, and a ring of roller positioning teeth is respectively provided on the surface of both ends of the mold body, and a cutting blade for cutting fabric is provided on the surface of the mold body located between the roller positioning teeth at both ends;

[0010] The ultrasonic welding machine is equipped with replaceable roller molds corresponding to the wrapping part I, the strap and the wrapping part II respectively, and the shape and size of the cutting blade on each roller mold are matched with the shape and size of the wrapping part I, the strap and the wrapping part II respectively;

[0011] As the main body of the mold rotates, the cutting blade can cut the fabric located below the roller mold. The ultrasonic welding machine is used to generate ultrasonic waves to drive the welding head to vibrate, thereby causing the edge of the cut fabric to vibrate and rub to generate heat energy, thus welding the edge of the fabric into shape. The roller positioning teeth are used to press down the two sides of the cut fabric during the cutting process.

[0012] Furthermore, the ultrasonic welding machine used includes an ultrasonic generator, an ultrasonic transducer, and a welding head;

[0013] The ultrasonic generator is used to convert 50 / 60Hz current into ultrasonic energy of 15, 20, 30 or 40kHz. The ultrasonic transducer is used to convert ultrasonic energy into kinetic energy to drive the welding head to vibrate. The welding head converts kinetic energy into heat energy by driving the cut fabric edge to vibrate and rub, thereby welding the cut fabric edge into shape.

[0014] Furthermore, mold shafts are respectively provided at both ends of the mold body for rotating and mounting the roller mold onto the ultrasonic welding machine.

[0015] Furthermore, the width of the wrapping part I is 24-25±5cm, the width of the strap is 7-8±3cm, and the width of the wrapping part II is 32-33±5cm.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The foot and leg sleeve production process for preventing deep vein thrombosis provided by this invention adopts ultrasonic technology. Rollable fabric can be directly cut and welded into shape in one go by an ultrasonic welding machine equipped with roller molds, which increases production efficiency by more than 4 times. At the same time, it can save raw materials such as sewing thread and binding strips, as well as labor costs.

[0018] Based on the above reasons, this invention can be widely promoted in the field of foot and leg sleeve production. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the foot sleeve structure described in this invention.

[0021] Figure 2 This is a schematic diagram of the leg sleeve structure described in this invention.

[0022] Figure 3 (a)-(c) are schematic diagrams of the roller mold structure with different sizes and different shapes of cutting blades corresponding to the wrapping part I, the strap and the wrapping part II, respectively.

[0023] In the diagram: 11. Wrapping part I; 12. Strapping; 13. Inflatable airbag I; 14. Air nozzle and air duct; 15. Adhesive tape I; 21. Wrapping part II; 22. Connecting part; 23. Inflatable airbag II; 24. Air nozzle, air duct and connector; 25. Adhesive tape II; 31. Mold body; 32. Roller positioning teeth; 33. Slitting blade; 34. Mold shaft. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. 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.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0028] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0029] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0030] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0031] Example 1

[0032] This invention provides a manufacturing process for foot and leg sleeves for preventing deep vein thrombosis.

[0033] The foot sleeve includes an oval-shaped wrapping part I11 and a strap 12 located on one side of the wrapping part I11;

[0034] The leg sleeve includes a square wrapping part II 21, and a plurality of extending connecting parts 22 are provided on one side of the wrapping part II 21;

[0035] The wrapping part I11, the strap 12 and the wrapping part II21 are respectively cut and welded by an ultrasonic welding machine equipped with roller molds;

[0036] The roller mold is rotatably mounted on the ultrasonic welding machine for cutting fabric; the roller mold includes a cylindrical mold body 31, and a ring of roller positioning teeth 32 is respectively provided on the surface of the two ends of the mold body 31. A cutting blade 33 for cutting fabric is provided on the surface of the mold body 31 between the roller positioning teeth 32 at both ends.

[0037] The ultrasonic welding machine is equipped with replaceable roller molds corresponding to the wrapping part I11, the strap 12 and the wrapping part II21 respectively. The shape and size of the cutting blade 33 on each roller mold are respectively matched with the shape and size of the wrapping part I11, the strap 12 and the wrapping part II21.

[0038] As the mold body 31 rotates, the cutting blade 33 can cut the fabric located below the roller mold. The ultrasonic welding machine is used to generate ultrasonic waves to drive the welding head to vibrate, thereby causing the edge of the cut fabric to vibrate and rub to generate heat energy, thus welding the edge of the fabric into shape. The roller positioning teeth 32 are used to press down on both sides of the cut fabric during the cutting process, and can also prevent the fabric from shifting to the left or right, so that the edges of the cut fabric are pressed together better, ensuring the welding effect.

[0039] Using the ultrasonic manufacturing process described in this invention to produce the foot covers and leg covers can improve production efficiency while saving on raw materials such as sewing thread and binding strips, as well as labor costs.

[0040] The working principle of the ultrasonic welding machine is to use high-frequency vibration waves to transmit to the surfaces of two objects to be welded. When pressure is applied, the surfaces of the two objects rub against each other, forming a fusion between the molecular layers.

[0041] The working principle of the ultrasonic welding machine is to use high-frequency vibration to bond two layers of materials together. The vibration energy can quickly accumulate heat energy between the materials, causing the materials to melt and bond them firmly together. The bonding is achieved through an ultrasonic generator and an ultrasonic transducer. When the fabric passes under the ultrasonic generator, the vibration is directly transmitted to the fabric. The vibration quickly generates heat energy, which melts the synthetic fibers in the material and bonds the edges of the fabric together, replacing traditional hand sewing. It can also prevent the edges from being torn. The heat accumulated by the vibration is limited, so the fabric as a whole will not be damaged by high temperature.

[0042] Furthermore, the ultrasonic welding machine used includes an ultrasonic generator, an ultrasonic transducer, and a welding head;

[0043] The ultrasonic generator is used to convert 50 / 60Hz current into ultrasonic energy of 15, 20, 30 or 40kHz. The ultrasonic transducer is used to convert ultrasonic energy into kinetic energy to drive the welding head to vibrate. The welding head converts kinetic energy into heat energy by driving the cut fabric edge to vibrate and rub, thereby welding the cut fabric edge into shape.

[0044] Furthermore, the mold body 31 is provided with mold shafts 34 at both ends for rotating and mounting the roller mold on the ultrasonic welding machine.

[0045] Furthermore, the fabrics of the wrapping part I11, the strap 12, and the wrapping part II21 are all made of fleece-textured composite sponge.

[0046] Furthermore, the width of the wrapping part I11 is 24-25±5cm, the width of the binding strap 12 is 7-8±3cm, and the width of the wrapping part II21 is 32-33±5cm.

[0047] Furthermore, an inflatable airbag I13 is installed on the wrapping part I11, and the inflatable airbag I13 is provided with an air nozzle for inflation and deflation and an air guide tube 14; one end of the strap 12 is connected to the wrapping part I11, and the other end is equipped with an adhesive tape I15.

[0048] The surface of the connecting part 22 is fitted with an adhesive tape II 25; an inflatable airbag II 23 is also installed on the wrapping part II 21, and the inflatable airbag II 23 is provided with an air nozzle for inflation and deflation, an air guide tube and a connecting joint 24.

[0049] The binding strap 12 and the adhesive tape I15 can be welded to the wrapping part I11, and the inflatable airbag II23 and the adhesive tape II25 can be welded to the wrapping part II21 using the ultrasonic welding machine.

[0050] The use of ultrasonic technology to produce foot and leg covers has the following advantages:

[0051] 1. High efficiency and stability: Ultrasonic welding is a highly efficient and stable welding method that can quickly complete the welding of large areas or complex shapes in a short time, improving production efficiency. Compared with traditional welding methods, ultrasonic welding does not require the addition of any welding materials or external heating sources, so it has higher energy utilization and better stability.

[0052] 2. Strong applicability: Ultrasonic welding machines are suitable for materials of various materials and thicknesses. At the same time, ultrasonic welding can also be used to weld various irregularly shaped materials to meet the production needs of different products.

[0053] 3. Environmentally friendly and energy-saving: Ultrasonic welding does not require the addition of any welding materials and does not produce harmful gases or waste, so its environmental performance is excellent; in addition, ultrasonic welding machines have low energy consumption, which can save energy costs for enterprises.

[0054] 4. Easy to operate: Ultrasonic welding machines are very easy to operate. After simple training, workers can master them. At the same time, ultrasonic welding machines have a high degree of automation and can achieve automated production through program control, which further improves production efficiency.

[0055] 5. High welding quality: Ultrasonic welding produces very high welding quality, with strong and smooth welds that do not crack or have other problems. This not only improves the quality and appearance of the product, but also extends its service life.

[0056] 6. Reduced costs: Using ultrasonic welding machines can reduce production costs. First, the purchase and maintenance costs of ultrasonic welding machines are relatively low. Second, because ultrasonic welding is fast and efficient, it can significantly shorten the production cycle, thereby reducing labor and time costs.

[0057] 7. Enhance competitiveness: With the intensification of market competition, enterprises need to continuously update their technology and equipment to improve production efficiency and product quality. Using ultrasonic welding machines can enhance the competitiveness of enterprises and make them more competitive in the market.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A manufacturing process for foot and leg covers for preventing deep vein thrombosis, characterized in that, The foot sleeve includes an oval-shaped wrapping part I and a strap located on one side of the wrapping part I; The leg sleeve includes a square wrapping part II, and a plurality of extending connecting parts are provided on one side of the wrapping part II; The wrapping part I, the strap and the wrapping part II are respectively cut and welded in one go using an ultrasonic welding machine equipped with roller molds; The roller mold is rotatably mounted on the ultrasonic welding machine for cutting fabric; the roller mold includes a cylindrical mold body, and a ring of roller positioning teeth is respectively provided on the surface of both ends of the mold body, and a cutting blade for cutting fabric is provided on the surface of the mold body located between the roller positioning teeth at both ends; The ultrasonic welding machine is equipped with replaceable roller molds corresponding to the wrapping part I, the strap and the wrapping part II respectively, and the shape and size of the cutting blade on each roller mold are matched with the shape and size of the wrapping part I, the strap and the wrapping part II respectively; As the main body of the mold rotates, the cutting blade can cut the fabric located below the roller mold. The ultrasonic welding machine is used to generate ultrasonic waves to drive the welding head to vibrate, thereby causing the edge of the cut fabric to vibrate and rub to generate heat energy, thus welding the edge of the fabric into shape. The roller positioning teeth are used to press down the two sides of the cut fabric during the cutting process.

2. The manufacturing process for foot and leg sleeves for preventing deep vein thrombosis according to claim 1, characterized in that, The ultrasonic welding machine used includes an ultrasonic generator, an ultrasonic transducer, and a welding head; The ultrasonic generator is used to convert 50 / 60 Hz current into ultrasonic energy of 15, 20, 30 or 40 kHz. The ultrasonic transducer is used to convert ultrasonic energy into kinetic energy to drive the welding head to vibrate. The welding head converts kinetic energy into heat energy by driving the cut fabric edge to vibrate and rub, thereby welding the cut fabric edge into shape.

3. The manufacturing process for foot and leg sleeves for preventing deep vein thrombosis according to claim 1, characterized in that, The mold body has mold shafts at both ends for rotating and mounting the roller mold onto the ultrasonic welding machine.

4. The manufacturing process for foot and leg sleeves for preventing deep vein thrombosis according to claim 1, characterized in that, The width of the wrapping part I is 24-25cm, the width of the strap is 7-8cm, and the width of the wrapping part II is 32-33cm.

Images