Gauze soaking, cutting and packaging integrated machine

Abstract

This utility model discloses an integrated machine for soaking, cutting, and packaging gauze, belonging to the field of medical gauze processing equipment. The machine frame is sequentially equipped with a gauze soaking and cutting mechanism and a packaging bag forming mechanism. The packaging bag forming mechanism includes a lower film roll, an upper film roll, a traction laminating device, a heat sealing device, a traction forming and cutting device, and a finished product conveyor belt. The soaking component uses a jacketed heat-conducting oil constant-temperature heating system, combined with a stirring screw and an immersion roller, to achieve uniform Vaseline impregnation and prevent solidification and clumping. The cutting component adopts a vertical feeding shearing structure, relying on a crank-slider to drive the moving blade for cutting, resulting in precise dimensions and clean cuts. After being cut, the soaked gauze falls onto the lower film, and after lamination of the upper and lower films, heat sealing, and rolling, it is individually packaged. This equipment integrates the entire process of soaking, cutting, and packaging into automated operations, avoiding contamination from manual handling. The laminating roller has avoidance grooves to prevent gauze from overflowing due to squeezing, improving product qualification rate and production efficiency, and is suitable for large-scale production of Vaseline gauze.

Description

Technical Field

[0001] This utility model belongs to the technical field of medical gauze processing and packaging equipment, specifically relating to an integrated machine for gauze soaking, cutting, and packaging. Background Technology

[0002] Vaseline-coated medical gauze is a commonly used medical consumable for clinical wound care, wound isolation, and anti-adhesion treatment. The production process mainly includes soaking the gauze in Vaseline, cutting to length, and individual sealing packaging. Currently, most existing production equipment has a separate structure, meaning the soaking equipment, cutting equipment, and packaging equipment are independently arranged. Materials need to be manually transferred and connected, resulting in low automation, low production efficiency, and the risk of contamination due to excessive manual intervention. This fails to meet the requirements for sterile, large-scale, and standardized production of medical gauze.

[0003] Meanwhile, existing petroleum jelly soaking equipment has a simple structure and mostly uses direct heating to heat petroleum jelly. This has defects such as uneven heating, local overheating leading to petroleum jelly deterioration, and petroleum jelly easily solidifying and clumping in low-temperature environments. In addition, it lacks a continuous stirring structure, which easily leads to uneven soaking thickness, local liquid shortage, and material accumulation during the gauze soaking process, directly affecting the performance of medical gauze.

[0004] Furthermore, traditional gauze cutting equipment often employs horizontal feeding and horizontal shearing methods. During the cutting process, the gauze is easily misaligned and wrinkled due to traction force, resulting in poor dimensional accuracy, uneven cuts, and a high defect rate. In the packaging process, existing laminated composite structures lack avoidance and positioning mechanisms, making the gauze prone to compression and deformation during lamination. After heat sealing, the forming and cutting accuracy is low, and the packaging seal is poor, easily leading to air and liquid leaks, which seriously affects the shelf life and medical safety of Vaseline gauze.

[0005] In summary, existing technologies suffer from technical defects such as disjointed process connections, poor immersion quality, low cutting accuracy, unsatisfactory packaging results, and low automation levels. There is an urgent need for an integrated, high-precision, and highly stable gauze immersion, cutting, and packaging equipment to solve these problems. Utility Model Content

[0006] This utility model aims to overcome the shortcomings of the existing technology and solve the technical problems of the existing petroleum jelly gauze production equipment, such as dispersed processes, low degree of automation, uneven petroleum jelly impregnation, easy solidification and deterioration, poor gauze cutting accuracy, irregular cuts, easy material compression during packaging and film coating, poor forming and sealing, and low product qualification rate.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a gauze soaking, cutting, and packaging integrated machine, comprising a frame, on which a gauze soaking and cutting mechanism and a packaging bag forming mechanism are mounted. The packaging bag forming mechanism includes a lower film roll, an upper film roll, a traction and laminating device, a heat sealing device, a traction forming and cutting device, and a finished product conveyor belt. The traction and conveying path of the lower film roll passes through the discharge port of the gauze soaking and cutting mechanism, and can receive the cut soaked gauze.

[0008] The gauze impregnation and cutting mechanism includes a gauze roll, an impregnation assembly, and a cutting assembly. The impregnation assembly adopts a box structure with a jacketed heating element. The heating element inside the jacket includes multiple sets of evenly arranged heating tubes. The jacket is filled with a heat-conducting oil medium. The liquid level of the melted petroleum jelly medium inside the box is higher than the highest point of the impregnation roller. Uniform and constant temperature heating is achieved through the heat-conducting oil to avoid local overheating and deterioration of the petroleum jelly. A stirring screw is installed inside the box to continuously stir the medium and ensure the uniformity of the petroleum jelly liquid. At the same time, it works with the impregnation roller, the guide roller, and the traction output roller to complete the entire process of immersion impregnation of the gauze, ensuring that the gauze is impregnated evenly and fully.

[0009] The cutting assembly adopts a vertical feeding and vertical shearing operation structure. The vertical guide roller changes the direction of yarn feeding, so that the liquid-impregnated yarn enters the clamping gap between the traction input roller and the cooperating roller vertically, and is then fed into the shearing station of the static cutting knife and the moving cutting knife. With the help of the crank slider structure, high-speed and precise fixed-length cutting is achieved, effectively avoiding yarn deviation and wrinkles.

[0010] The traction laminating device adopts a structure in which an upper pressure roller with an annular groove and a lower traction roller work together. During the lamination process, it can avoid the protruding parts of the gauze and prevent the material from being squeezed and deformed. The traction forming and cutting device uses an upper cutting roller with axially distributed circumferential cutters and a rubber bottom roller to achieve precise rolling and cutting separation of the heat-sealed packaging, forming an independent sealed packaged product. The whole process is connected and continuous, realizing integrated automated production.

[0011] Beneficial technical effects 1. This utility model integrates the entire process of soaking, cutting, coating, heat sealing, and roll forming into a single structure, eliminating the manual transfer link, greatly improving the degree of production automation, increasing production efficiency, and avoiding the risk of contamination from manual contact, thus ensuring the sterile production standards of medical consumables.

[0012] 2. The structure adopts a jacketed heat-conducting oil constant temperature heating combined with a stirring screw to achieve uniform heating and constant temperature maintenance of the petroleum jelly medium. This effectively prevents the petroleum jelly from solidifying and clumping, as well as local overheating and deterioration, ensuring that each piece of gauze is soaked in liquid evenly and with consistent thickness, thus improving the stability of product quality.

[0013] 3. The innovative vertical feeding and shearing structure of the gauze changes the traditional horizontal cutting operation mode, completely solving the problems of offset, wrinkles, size deviation and uneven cut during the gauze cutting process, and greatly improving the cutting accuracy and the qualified rate of finished products.

[0014] 4. The traction composite device is equipped with an abutment-type annular groove structure to effectively avoid squeezing the soaked gauze during the film-coating process, preventing material deformation and Vaseline leakage; combined with a precision rolling cut structure, it ensures that the packaging is neatly formed and tightly sealed, effectively extending the product's shelf life and improving the product's medical safety.

[0015] 5. The precise matching and coordinated operation of each process ensures strong equipment stability and adaptability to the mass production of standardized medical petroleum jelly gauze, reducing labor costs and defective product losses, resulting in significant economic benefits.

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a specific embodiment of the present utility model; Figure 2 This is a perspective view of the immersion component in a specific embodiment of the present invention; Figure 3 This is a structural diagram of the cutting component in a specific embodiment of the present utility model; Figure 4 This is a structural diagram of the traction forming and cutting device in a specific embodiment of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Lower film roll; 2. Upper film roll; 3. Traction and laminating device; 4. Heat sealing device; 5. Traction forming and cutting device; 6. Finished product conveyor belt; 7. Gauze roll; 8. Immersion assembly; 9. Cutting assembly; 10. Box body; 11. Interlayer; 12. Stirring screw; 13. Immersion roller; 14. Inlet roller; 15. Traction output roller; 16. Seat body; 17. Traction input roller; 18. Matching roller; 19. Vertical guide roller; 20. Matching cylinder; 21. Static cutting knife; 22. Crank-slider structure; 23. Moving cutting knife; 24. Upper pressure roller; 25. Lower traction roller; 26. Upper cutting roller; 261. Axial roller; 27. Bottom roller; 28. Heating tube. Detailed Implementation

[0019] The present invention will be described in detail below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] like Figure 1 — Figure 4As shown in the figure, this embodiment discloses an integrated machine for soaking, cutting and packaging gauze. The whole machine is installed on the frame. The main body of the frame is fixedly installed with a gauze soaking and cutting mechanism and a packaging bag forming mechanism, so as to realize fully automated continuous operation of gauze soaking, cutting, film coating, heat sealing and cutting forming.

[0021] In the packaging bag forming mechanism, the lower film roll 1 and the upper film roll 2 are fixed on the upper and lower sides of the frame, respectively. The packaging lower film output from the lower film roll 1 is conveyed along a horizontal path, and the conveying path passes directly below the discharge port of the gauze impregnation and cutting mechanism, which can receive the cut impregnated gauze in real time. After the lower film carries the gauze, it continues to be conveyed forward. The packaging upper film output from the upper film roll 2 is drawn upward to the inlet of the laminating device 3 and merged with the lower film, precisely aligning and laminating it to completely cover the lower film and the impregnated gauze on the surface. The laminated film enters the heat sealing device 4 in sequence to complete the heat sealing on all four sides, and then is sent to the traction forming and cutting device 5 for fixed-length rolling and separation, finally forming an independent packaged product, which is conveyed out by the finished product conveyor belt 6.

[0022] The gauze roll 7 of the gauze impregnation and cutting mechanism is installed at the feed end of the frame for continuous supply of raw gauze. The box 10 of the impregnation assembly 8 is a rectangular structure with an open top. A jacket 11 is set at the bottom of the box 10. A heating assembly is set inside the jacket 11. The heating assembly includes multiple sets of evenly arranged heating tubes 28. The jacket 11 is filled with heat-conducting oil medium. The liquid level of the petroleum jelly medium inside the box 10 after hot melting is higher than the highest point of the roller surface of the impregnation roller 13. Utilizing the characteristics of high specific heat capacity and uniform heat transfer of heat-conducting oil, the solid petroleum jelly inside the box 10 is kept at a constant temperature for hot melting and heat preservation, avoiding local high temperature causing petroleum jelly deterioration, and preventing petroleum jelly from solidifying and clumping in low temperature environments. A horizontally rotating stirring screw 12 is installed inside the box 10. The end of the stirring screw 12 is connected to a drive motor. During operation, it continuously rotates and stirs the liquid petroleum jelly to ensure uniform medium concentration and temperature, and eliminate the problems of local material accumulation and uneven concentration. Inside the housing 10, an immersion roller 13 is fixed. The level of the hot-melted Vaseline liquid is higher than the surface of the immersion roller 13, ensuring that the gauze is fully immersed in the liquid. An inlet roller 14 and a traction output roller 15 are respectively rotatably installed on the left and right sides of the opening at the top of the housing 10. The gauze roll 7 is guided by the guide roller group, enters the housing 10 through the inlet roller 14, is completely immersed in the Vaseline medium by the immersion roller 13, and is then smoothly output outward by the traction output roller 15, completing the immersion process.

[0023] The base 16 of the cutting assembly 9 is fixed to the frame and located at the discharge end of the immersion assembly 8. The base 16 is sequentially equipped with a traction input roller 17, a mating roller 18, a vertical guide roller 19, and a shearing assembly. The mating roller 18 is connected to the piston rod of a mating cylinder 20 fixed on the base 16. The mating cylinder 20 can drive the mating roller 18 to move horizontally, ensuring that the mating roller 18 tightly fits against the traction input roller 17, achieving stable clamping and traction of the yarn. The vertical guide roller 19 is vertically fixed directly above the traction input roller 17. After the immersion yarn is output by the traction output roller 15, it is vertically guided by the vertical guide roller 19 and enters the clamping gap between the traction input roller 17 and the mating roller 18.

[0024] In the shearing assembly, the static cutter 21 is fixedly installed on the lower part of the base 16, and the crank-slider structure 22 is fixed on the upper part of the base 16. The bottom end of the slider of the crank-slider structure 22 is fixedly connected to the moving cutter 23. The moving cutter 23 can move up and down in a linear motion with the slider, forming a cross-cutting engagement with the static cutter 21. The shearing positions of the static cutter 21 and the moving cutter 23 are precisely set directly below the gap between the traction input roller 17 and the mating roller 18, allowing the vertically fed yarn to directly enter the shearing position. Vertical cutting can completely avoid the yarn offset and wrinkling problems caused by horizontal feeding cutting, ensuring accurate cutting dimensions and a smooth cut. The cut single-segment soaked yarn falls freely and is arranged at intervals on the continuously conveyed lower film surface.

[0025] The upper pressure roller 24 and the lower traction roller 25 of the traction composite device 3 are closely fitted together to form a film traction composite station. The upper pressure roller 24 has an annular groove on its circumferential surface. The position of the groove corresponds one-to-one with the position of the gauze falling. During the film lamination process, it can effectively avoid the protruding parts of the gauze, avoid squeezing the soaked gauze to cause deformation and Vaseline leakage, and ensure the integrity of the material.

[0026] The heat sealing device 4 adopts an existing mature heat sealing structure, which can perform constant temperature heat sealing on the edges of the upper and lower films after lamination, realize the sealed covering of a single gauze material, and ensure the airtightness of the packaging.

[0027] The traction unit of the traction forming and cutting device 5 has the same structure as the traction composite device 3. It is used to stabilize the continuous packaging film after heat sealing. The upper cutting roller 26 of the rolling cutting component is rotatably installed on the frame. The bottom roller 27 is a rubber elastic roller. The axial roller cutters 261 on the surface of the upper cutting roller 26 are evenly spaced along the circumference. During the rotation of the upper cutting roller 26, the axial roller cutters 261 and the bottom roller 27 make elastic contact, and the continuous heat-sealed packaging film is precisely rolled and cut to separate it into independent single-packaged liquid-impregnated gauze finished products. Finally, the finished product conveyor belt 6 completes the discharge. The whole process is automated and continuous.

[0028] This equipment is an integrated processing machine that combines constant temperature impregnation of gauze, precise fixed-length cutting, film composite heat sealing, and automatic slitting and unloading. The overall workflow is continuous, synchronous, and coordinated. The specific working principle is as follows: During operation, the fabric roll continuously outputs raw fabric, which enters the chamber via the guide roller. A constant temperature is maintained within the chamber using a heating pipe in the bottom interlayer combined with heat-conducting oil, keeping the petroleum jelly in a uniform molten state. Simultaneously, the stirring screw rotates continuously, ensuring the petroleum jelly medium maintains a uniform and stable temperature and concentration. The fabric is then fully immersed and soaked through the immersion roller, completing the uniform impregnation process. After impregnation, the fabric is stably discharged outwards by the traction output roller.

[0029] The soaked yarn is vertically guided by a vertical guide roller and fed vertically into the clamping gap between the traction input roller and the mating roller. A cylinder drives the mating roller to engage with the traction input roller, achieving stable traction, tension, and positioning of the yarn. Subsequently, a crank-slider structure drives a moving cutter to perform a high-speed reciprocating shearing motion relative to the stationary cutter, completing precise length cutting of the yarn under vertical feeding conditions. This effectively avoids yarn stretching, wrinkling, and misalignment. The cut segments of soaked yarn fall freely and are arranged at set intervals on the continuously conveyed lower film surface.

[0030] The lower film, carrying the gauze, is continuously pulled and conveyed by the lower film roll, while the upper film roll is output simultaneously. The upper and lower films converge and are bonded at the traction laminating device. The upper pressure roller with annular grooves precisely avoids protruding parts of the gauze, preventing material deformation and media spillage caused by lamination compression, ensuring a smooth and adhered film. The laminated film, along with the internal gauze, enters the heat sealing device to complete edge heat sealing, forming a continuous sealed packaging strip.

[0031] Finally, the heat-sealed continuous packaging body is fed into the traction forming and cutting device. The upper cutting roller with circumferentially distributed axial roller cutters and the rubber bottom roller work together to cut the continuous packaging body at equal intervals and form independent single-piece liquid-impregnated gauze packaging products. The finished products are finally automatically output by the finished product conveyor belt. The whole process realizes automated continuous processing, with tight process connection, production stability and finished product precision greatly improved.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A gauze infusion cutting and packaging all-in-one machine, comprising a rack, characterized in that: The frame is equipped with a gauze soaking and cutting mechanism and a packaging bag forming mechanism; the packaging bag forming mechanism includes a lower film roll (1), an upper film roll (2), a traction composite device (3), a heat sealing device (4), a traction forming and cutting device (5), and a finished product conveyor belt (6) connected in sequence. The material conveying path of the lower film roll (1) passes through the lower part of the outlet of the gauze soaking and cutting mechanism; the gauze soaking and cutting mechanism includes a gauze roll (7), a soaking component (8), and a cutting component (9); the soaking component (8) is set as a box (10) with an open top. The bottom of the box (10) is provided with a double layer (11). The double layer (11) is equipped with a heating component. The box (10) contains Vaseline medium. The box (10) is rotatably equipped with a stirring screw (12) and an immersion roller (13). The upper part of the box (10) An inlet roller (14) and a traction output roller (15) are respectively installed on both sides of the opening. The cutting assembly (9) includes a base (16). The base (16) is sequentially equipped with a traction input roller (17), a mating roller (18), a vertical guide roller (19), and a shearing assembly. The mating roller (18) is connected to a mating cylinder (20) and can be set horizontally against the traction input roller (17). The shearing assembly includes a static cutting blade (21) fixed to the base (16), a crank-slider structure (22), and a moving cutting blade (23) fixed to the crank-slider structure (22). The shearing positions of the static cutting blade (21) and the moving cutting blade (23) are located directly below the gap between the traction input roller (17) and the mating roller (18). After the impregnated gauze is vertically introduced into the shearing position by the vertical guide roller (19) and cut, it is dropped intermittently onto the surface of the lower film output by the lower film roll (1).

2. The integrated machine for soaking, cutting, and packaging gauze according to claim 1, characterized in that: The traction composite device (3) includes an upper pressure roller (24) and a lower traction roller (25) arranged correspondingly on the upper and lower sides. The upper pressure roller (24) has an annular groove on its circumferential surface. The traction forming and cutting device (5) includes a traction unit and a rolling cutting assembly. The rolling cutting assembly includes an upper cutting roller (26) and a bottom roller (27). The upper cutting roller (26) has axial cutters (261) evenly distributed on its circumferential wall.

3. The integrated machine for soaking, cutting, and packaging gauze according to claim 1, characterized in that: The heating components inside the interlayer (11) include multiple sets of evenly arranged heating tubes (28). The interlayer (11) is filled with heat-conducting oil medium. The liquid level of the Vaseline medium inside the box (10) after hot melting is higher than the highest point of the roller surface of the immersion roller (13).

4. The integrated machine for soaking, cutting, and packaging gauze according to claim 1, characterized in that: The stirring screw (12) is arranged horizontally along the length of the box (10), and the end of the stirring screw (12) is connected to a drive motor. The screw blades of the stirring screw (12) are fitted with the inner wall of the box (10) with clearance.

5. The integrated machine for soaking, cutting, and packaging gauze according to claim 1, characterized in that: The vertical guide roller (19) is vertically arranged directly above the traction input roller (17), and the vertical guide roller (19), traction input roller (17), and cooperating roller (18) form a vertically downward yarn traction channel.

6. The integrated machine for soaking, cutting, and packaging gauze according to claim 2, characterized in that: The upper pressure roller (24) and the lower traction roller (25) are closely fitted together. The annular groove of the upper pressure roller (24) corresponds one-to-one with the finished product position of the yarn, avoiding the protruding parts of the yarn.

7. The integrated machine for soaking, cutting, and packaging gauze according to claim 2, characterized in that: The axial cutters (261) on the surface of the upper cutting roller (26) are arranged at equal intervals along the circumferential direction. The axial cutters are in elastic contact with the roller surface of the bottom roller (27) to achieve equidistant and precise rolling and cutting separation of the continuous package.

8. The integrated machine for soaking, cutting, and packaging gauze according to claim 1, characterized in that: The film output from the lower film roll (1) and the upper film roll (2) is combined and laminated by the traction composite device (3) to completely cover the single-section impregnated gauze, and forms an independent sealed packaging structure with the help of the heat sealing device (4).

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