Medical sheet production equipment and production method

Abstract

The present invention relates to a medical sheet production device and a production method thereof, comprising a feeding system and a welding system arranged in sequence from right to left, wherein the feeding system is used to convey stacked raw materials to the welding system, and the welding system is used to position and connect the middle of the stacked raw materials to form a positioning connection, and then connect and fix the edges of the stacked raw materials; in the medical sheet production device and the production method thereof, the cotton material layer directly enters the upper quilt cover layer and the lower quilt cover layer after secondary combing, and then is cut along the length direction and ultrasonically sewn on the four sides so that the quilt can be formed in one piece. At the same time, the quilt made in this way has a fluffier cotton mesh, a more uniform grammage, lower cost, higher efficiency, and less production time for a single quilt than quilts originally available on the market; in addition, the positioning connection can prevent the cotton material layer from relative displacement between the upper quilt cover layer and the lower quilt cover layer, thereby preventing the cotton material layer from agglomerating.

Description

Technical Field

[0001] The invention relates to medical sheet production equipment and a production method thereof, belonging to the technical field of medical sheet production. Background Art

[0002] Medical drapes are widely used as a protective measure during surgery and other medical procedures. During surgery or other medical procedures, medical drapes can be used to cover the patient. Medical drapes are made sterile and are used to prevent the patient from developing infections. Medical drapes protect the patient by creating a sterile environment around the surgical field and maintaining an effective barrier that minimizes the passage of microorganisms between the non-sterile area and the sterile field. To be suitable for operation, the drapes should be made of a material that is resistant to blood, plasma, serum and / or other body fluids, thereby preventing such fluids from contaminating the sterile field.

[0003] The utility model patent application number CN03211450.8 discloses a disposable medical bedding product, comprising a quilt, a mattress, and a pillow, with a structure consisting of a non-woven outer layer and a vacuum cotton inner layer with a cotton cover. A layer of waterproof plastic film is applied to the mattress surface facing the bed, and a circle of non-woven fabric with a plastic film is applied around the mattress. The film and non-woven fabric together extend to form a mattress edge for wrapping the mattress. This utility model can effectively control cross-infection between patients and has become an irreplaceable bedding product for patients with large-area burns, scalds, trauma, bedsore infections, infectious diseases, severe infections, and organ transplant patients. However, during the production and use of disposable medical bedding in the prior art, the inner cotton layer is prone to relative movement with the non-woven outer layer, causing the cotton layer to clump together, affecting the quality of the medical product.

[0004] Therefore, need to have a kind of medical sheet production equipment and production method thereof, prevent the cotton material layer from gathering into a group. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: in order to overcome the deficiencies of the prior art, to provide a medical sheet production device and a production method thereof that prevents the cotton material layer from agglomerating.

[0006] The technical solution adopted by the present invention to solve the above-mentioned problem is: a medical sheet production device, comprising a feeding system and a welding system arranged in sequence from right to left, wherein the feeding system is used to convey stacked raw materials to the welding system, and the welding system is used to position and connect the middle of the stacked raw materials to form a positioning connection, and then connect and fix the edges of the stacked raw materials;

[0007] The welding system includes a primary welding device, a secondary welding device and a tertiary welding device arranged in sequence. The primary welding device is used to weld the middle of the stacked raw materials to form a first connection, the secondary welding device is used to weld both sides of the stacked raw materials in the width direction to form a second connection, and the tertiary welding device is used to weld both sides of the stacked raw materials along the length direction and the cut portion of the stacked raw materials to form a third connection. The second connection and the third connection constitute an edge connection.

[0008] Preferably, the primary welding device comprises a primary welding frame, on which a primary welding roller group and a primary welding mechanism are provided;

[0009] The primary welding mechanism includes a primary welding roller and a primary welding assembly. The primary welding roller is parallel to the front-to-back direction. A plurality of primary welding rings are coaxially fixedly sleeved on the outer peripheral wall of the primary welding roller. The plurality of primary welding rings are evenly spaced along the axial direction of the primary welding roller. The primary welding assembly is located above the primary welding roller.

[0010] The primary welding assembly includes a horizontally arranged lifting plate, which is driven to rise and fall by a primary welding cylinder. A plurality of primary welding heads are arranged at the bottom of the lifting plate, and the plurality of primary welding heads correspond one to one to the primary welding rings.

[0011] Preferably, the one-time welding device further comprises a heat dissipation pipe, both ends of which are sealed and fixedly arranged on the first heat dissipation frame, and a plurality of heat dissipation branches are connected to the heat dissipation pipe, and the plurality of heat dissipation branches correspond one-to-one to the plurality of one-time welding heads.

[0012] Preferably, the secondary welding device comprises a secondary welding frame, on which a secondary welding roller group, a secondary welding mechanism and a buffer mechanism are provided, and the secondary welding mechanism and the buffer mechanism are arranged in sequence from right to left;

[0013] The secondary welding mechanism includes a flanging roller, two flanging assemblies and two secondary welding assemblies. The two flanging assemblies are arranged symmetrically front to back. The two secondary welding assemblies correspond one to one to the two welding assemblies. The flanging assemblies and the secondary welding assemblies are arranged in sequence from right to left. The flanging roller is parallel to the front-to-back direction.

[0014] The flanging assembly includes a pressure roller and a stop rod, the pressure roller is located above the flanging roller, a flanging slider is provided above the pressure roller, the flanging slider is connected to the pressure roller, a lead screw is provided on the flanging slider, the lead screw is rotatably connected to the secondary welding frame, the lead screw is threadedly connected to the flanging slider, a rocker is installed on one end of the lead screw, a flanging guide rod is passed through the flanging slider, the flanging guide rod is fixedly connected to the secondary welding frame, the flanging guide rod, the lead screw and the pressure roller are all parallel to the flanging roller, the stop rod is tilted and arranged on the left side of the pressure roller, and the stop rod is fixedly connected to the secondary welding frame;

[0015] The secondary welding assembly includes a secondary welding wheel and a secondary welding head arranged up and down, the secondary welding wheel is driven to rise and fall by a secondary welding cylinder, and the secondary welding wheel is driven to rotate by a secondary welding drive unit;

[0016] The buffer mechanism includes a first buffer frame and a second buffer frame arranged up and down, the first buffer frame is provided with a plurality of first buffer rollers arranged in sequence from left to right, the second buffer frame is provided with a plurality of second buffer rollers arranged in sequence from left to right, the first buffer frame is fixedly set on the secondary welding frame, the secondary welding frame is rotatably connected with a buffer shaft, the buffer shaft is parallel to the front and rear directions, the buffer shaft is driven to rotate reciprocatingly by a buffer driving unit, and the second buffer frame is fixedly set on the buffer shaft.

[0017] Preferably, the three-stage welding device comprises a three-stage welding frame, on which a three-stage welding roller group, a three-stage welding mechanism and a traction mechanism are provided, and the three-stage welding mechanism and the traction mechanism are arranged on the left and right;

[0018] The traction mechanism includes two adjustment components and two traction rollers arranged up and down, the traction rollers are parallel to the front-to-back direction, the two adjustment components are respectively arranged on the front and rear sides of the traction rollers, the two ends of the traction rollers are respectively connected to the two adjustment components, and the adjustment components are used to adjust the vertical distance between the two traction rollers;

[0019] The three-way welding mechanism includes a three-way welding wheel and a three-way welding head arranged up and down. The three-way welding head is in the shape of a long strip and is parallel to the front and back directions. The three-way welding wheel is driven to rise and fall by a three-way welding cylinder. A translation component is connected to the cylinder body of the three-way welding cylinder, and the translation component drives the three-way welding cylinder to move forward or backward.

[0020] A method for producing a medical quilt sheet comprises the following steps: firstly, stacking an upper quilt cover layer, a cotton material layer and a lower quilt cover layer in sequence to form a three-layer structure; then positioning and connecting the middle portions of the upper quilt cover layer, the cotton material layer and the lower quilt cover layer to form a positioning connection; and finally, connecting and fixing the edges of the upper quilt cover layer, the cotton material layer and the lower quilt cover layer.

[0021] Preferably, the positioning connection is formed by ultrasonic welding, and the ultrasonic welding is performed using a one-time welding device.

[0022] Preferably, the edges of the upper quilt layer, the cotton material layer and the lower quilt layer are connected and fixed by ultrasonic welding, and the ultrasonic welding is performed sequentially using a secondary welding device and a tertiary welding device.

[0023] Preferably, the upper quilt layer, the cotton material layer and the lower quilt layer are made of non-woven fabric, chemical fiber carded cotton and non-woven fabric respectively.

[0024] Preferably, the positioning connections are in the form of dots or lines, the dots are arranged in an array, and the lines are arranged in a horizontal, vertical, oblique or staggered manner in various directions.

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] The present invention provides a medical sheet production device and a production method thereof. After secondary combing, the cotton layer directly enters the upper quilt cover layer and the lower quilt cover layer, and then is cut along the length direction and ultrasonically sewn on the four sides so that the quilt can be formed in one piece. At the same time, the quilt made in this way has a fluffier cotton mesh, more uniform grammage, lower cost, higher efficiency, and less production time for a single quilt than quilts on the original market. In addition, the positioning connection can prevent the cotton layer from relative displacement between the upper quilt cover layer and the lower quilt cover layer, thereby preventing the cotton layer from clumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a medical sheet production device according to the present invention;

[0028] Figure 2 is a schematic structural diagram of the clamping device;

[0029] Figure 3 It is a structural schematic diagram of a primary welding device;

[0030] Figure 4 It is a structural diagram of a primary welding mechanism;

[0031] Figure 5 It is a schematic diagram of the connection structure between the lifting plate and the primary welding head;

[0032] Figure 6 It is a structural diagram of the secondary welding mechanism;

[0033] Figure 7 Schematic diagram of the structure of the flanging component;

[0034] Figure 8 It is a structural diagram of the flange welding assembly;

[0035] Figure 9 It is a structural schematic diagram of a three-stage welding device;

[0036] Figure 10 It is a structural diagram of the traction mechanism;

[0037] Figure 11 It is a structural diagram of the adjustment component;

[0038] Figure 12 It is a structural diagram of the three-stage welding mechanism;

[0039] Figure 13 for Figure 12 A magnified view of part A;

[0040] Figure 14 It is a schematic diagram of the structure of the cutting system;

[0041] Figure 15 It is a structural diagram of the conveying mechanism;

[0042] Figure 16 It is a structural diagram of the cutting mechanism;

[0043] Figure 17 It is a cross-sectional view of a medical sheet with cuff connection;

[0044] Figure 18 It is a cross-sectional view of a medical sheet connected up and down;

[0045] Figure 19 A schematic diagram of the structure of a medical sheet with a crisscross pattern at the positioning joints;

[0046] Figure 20 A schematic diagram of the structure of a medical sheet with an obliquely staggered positioning connection;

[0047] Figure 21 This is a schematic diagram of the structure of a medical sheet with dot-shaped positioning joints.

[0048] in:

[0049] Cotton material layer 1, upper quilt layer 2, lower quilt layer 3, edge connection 4, positioning connection 5;

[0050] A second connection point 41, a third connection point 42;

[0051] First connection 51;

[0052] Loading system 100, welding system 200, cutting system 300;

[0053] Cotton feeding device 101, loosening device 102, primary carding device 103, web laying device 104, secondary carding device 105, clamping device 106;

[0054] Clamping frame 106.1, clamping conveyor belt 106.2, clamping support roller 106.3, first deflection roller 106.4, second deflection roller 106.5;

[0055] Primary welding device 201, secondary welding device 202, tertiary welding device 203;

[0056] Primary welding frame 201.1, primary welding roller assembly 201.2, primary welding mechanism 201.3, heat dissipation pipe 201.4, heat dissipation branch pipe 201.5;

[0057] Primary welding roller 201.31, primary welding assembly 201.32, primary welding ring 201.33;

[0058] Lifting plate 201.321, primary welding cylinder 201.322, primary welding head 201.323, connecting plate 201.324, transmission rod 201.325, transmission plate 201.326, lifting rod 201.327, spring 201.328;

[0059] Secondary welding frame 202.1, secondary welding roller assembly 202.2, secondary welding mechanism 202.3, buffer mechanism 202.4;

[0060] Flanging roller 202.31, flanging assembly 202.32, secondary welding assembly 202.33;

[0061] Pressure roller 202.321, stop rod 202.322, flanging slider 202.323, lead screw 202.324, rocker 202.325, flanging guide rod 202.326;

[0062] Rotating shaft 202.3211, middle roller body 202.3212, end roller body 202.3213;

[0063] Secondary welding wheel 202.331, secondary welding head 202.332, secondary welding cylinder 202.333;

[0064] First buffer rack 202.41, second buffer rack 202.42, first buffer roller 202.43, second buffer roller 202.44, buffer shaft 202.45;

[0065] Tertiary welding frame 203.1, tertiary welding roller group 203.2, tertiary welding mechanism 203.3, traction mechanism 203.4;

[0066] Tertiary welding wheel 203.31, tertiary welding head 203.32, tertiary welding cylinder 203.33, translation assembly 203.34;

[0067] Rotating shaft 203.341, bearing 203.342, transmission wheel 203.343, transmission belt 203.344, motor 203.345, three-way welding slider 203.346, three-way welding guide rod 203.347;

[0068] Adjustment assembly 203.41, traction roller 203.42, anti-skid groove 203.43;

[0069] Support base 203.411, strip groove 203.412, moving block 203.413, adjustment plate 203.414, locking screw 203.415, fixing plate 203.416, positioning screw 203.417;

[0070] Cutting frame 301, cutting mechanism 302, conveying mechanism 303, cutting roller set 304, unloading frame 305, unloading conveyor belt 306;

[0071] Blade 302.1, cutting plate 302.2, cutting cylinder 302.3;

[0072] Conveying platform 303.1, first conveying roller 303.2, second conveying roller 303.3, traction belt 303.4. DETAILED DESCRIPTION

[0073] like Figure 17-21 As shown, a medical sheet in this embodiment includes a cotton material layer 1, an upper quilt cover layer 2 and a lower quilt cover layer 3;

[0074] The upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 are arranged in sequence from top to bottom. The edges of the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 are connected and fixed, and the edge connection and fixing method is ultrasonic welding. A positioning connection 5 is provided in the middle of the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3. The positioning connection 5 is formed by ultrasonic welding. The positioning connection 5 is used to prevent the cotton material layer 1 from relative displacement between the upper quilt layer 2 and the lower quilt layer 3;

[0075] When the positioning connection 5 is in a point shape, the points are arranged in an array;

[0076] When the positioning connection 5 is linear, the linear shape is horizontal, vertical, oblique or staggered in various directions above;

[0077] There are two ways to connect and fix the edges. One is to turn the edge of the lower quilt layer 3 over the upper quilt layer 2 and then connect it. The other is to connect the edge of the upper quilt layer 2 and the edge of the lower quilt layer 3 after fitting them from top to bottom.

[0078] The upper quilt cover layer 2, the cotton material layer 1 and the lower quilt cover layer 3 are respectively made of non-woven fabric, chemical fiber carded cotton and non-woven fabric.

[0079] A method for producing a medical quilt sheet comprises: firstly, stacking an upper quilt cover layer 2, a cotton material layer 1, and a lower quilt cover layer 3 in sequence to form a three-layer structure; then, positioning and connecting the middle portions of the upper quilt cover layer 2, the cotton material layer 1, and the lower quilt cover layer 3 to form a positioning connection 5, which is formed by ultrasonic welding; finally, connecting and fixing the edges of the upper quilt cover layer 2, the cotton material layer 1, and the lower quilt cover layer 3 by ultrasonic welding;

[0080] When the edges of the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 are connected and fixed, they are first flanged and then ultrasonically welded;

[0081] One method of producing medical sheets is assembly line operation, which can be done in two ways;

[0082] One is to form a three-layer structure of the positioning connection 5, firstly perform a primary stitching on both sides along the width direction, then perform multiple secondary stitching along the length direction, and finally cut, and the cutting position is the secondary stitching position;

[0083] Secondly, the three-layer structure forming the positioning joint 5 is first sewn on both sides along the width direction, then cut along the length direction, and finally the cut three-layer structure is sewn on both sides along the length direction for the second time;

[0084] The ultrasonic welding of the positioning connection 5 is performed using a primary welding device 201, which is used to position and connect the upper quilt layer 2, the cotton material layer 1 and the middle of the lower quilt layer 3 to form the positioning connection 5;

[0085] The ultrasonic welding at the edges of the upper quilt layer 2, the cotton layer 1 and the lower quilt layer 3 sequentially adopts a secondary welding device 202 and a tertiary welding device 203. The secondary welding device 202 is used to weld the edges of the upper quilt layer 2, the cotton layer 1 and the lower quilt layer 3 in the width direction to form a second connection 41. The third welding device 203 is used to weld the edges of the upper quilt layer 2, the cotton layer 1 and the lower quilt layer 3 in the length direction to form a third connection 42. The second connection 41 and the third connection 42 constitute an edge connection 4.

[0086] like Figure 1-16 As shown, a medical sheet production device includes a feeding system 100, a welding system 200, and a cutting system 300 arranged from right to left. The feeding system 100 is used to convey stacked raw materials to the welding system 200. The welding system 200 is used to position and connect the middle of the stacked raw materials to form a positioning connection 5, and then connect and fix the edges of the stacked raw materials. The cutting system 300 is used to cut the raw materials processed by the welding system 200 along the length direction to form individual medical sheets.

[0087] The raw materials include an upper quilt layer 2, a cotton material layer 1, and a lower quilt layer 3, which are arranged from top to bottom. The cotton material layer 1 can be arranged in multiple layers from top to bottom. The upper quilt layer 2 and the lower quilt layer 3 are both made of non-woven fabrics, and the cotton material layer 1 is made of a chemical fiber combed surface material.

[0088] The feeding system 100 includes a cotton feeding device 101, a loosening device 102, a primary combing device 103, a web laying device 104, a secondary combing device 105 and a clamping device 106, which are arranged in sequence. The cotton feeding device 101 is used to suck in cotton materials, the loosening device 102 is used to loosen the cotton materials, the primary combing device 103 is used to comb the cotton materials once, the web laying device 104 is used to lay the cotton materials in an orderly manner, the secondary combing device 105 is used to comb the cotton materials twice and form a cotton material layer 1, and the clamping device 106 is used to stack the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 from top to bottom in sequence to form a three-layer structure;

[0089] The clamping device 106 includes a clamping frame 106.1, on which a clamping conveyor belt 106.2 and two clamping support rollers 106.3 are provided. The clamping conveyor belt 106.2 and the two clamping support rollers 106.3 are distributed along the raw material conveying direction. The clamping conveyor belt 106.2 is located between the two clamping support rollers 106.3. The clamping frame 106.1 is provided with a first deflection roller 106.4 and a second deflection roller 106.5. The first deflection roller 106.4 is located between the clamping conveyor belt 106.2 and the clamping support rollers 106.3. 6.2, the second turning roller 106.5 is arranged obliquely above the clamping conveyor belt 106.2. The cotton material layer 1 after the secondary combing is conveyed to the clamping conveyor belt 106.2. In addition, the upper quilt layer 2 passes through the first turning roller 106.4 and the second turning roller 106.5 in sequence and is directly attached to the top of the cotton material layer 1, while the lower quilt layer 3 passes through the right clamping support roller 106.3 and is directly attached to the bottom of the cotton material layer 1. Thereafter, the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 are synchronously conveyed to the primary welding device 201;

[0090] The welding system 200 includes a primary welding device 201, a secondary welding device 202, and a tertiary welding device 203, which are arranged in sequence. The primary welding device 201 is used to weld the middle of the stacked raw materials to form a first connection 51. The secondary welding device 202 is used to weld both sides of the stacked raw materials in the width direction to form a second connection 41. The tertiary welding device 203 is used to weld both sides of the stacked raw materials along the length direction and the cut portion of the stacked raw materials to form a third connection 42. The second connection 41 and the third connection 42 constitute an edge connection 4. The raw materials are transported along the length direction.

[0091] The primary welding device 201 comprises a primary welding frame 201.1, on which a primary welding roller group 201.2 and a primary welding mechanism 201.3 are arranged;

[0092] The primary welding mechanism 201.3 includes a primary welding roller 201.31 and a primary welding assembly 201.32. The primary welding roller 201.31 is parallel to the front-to-back direction. The width direction of the raw material is parallel to the front-to-back direction, and the length direction of the raw material is parallel to the left-to-right direction. A plurality of primary welding rings 201.33 are coaxially fixedly sleeved on the outer peripheral wall of the primary welding roller 201.31. The plurality of primary welding rings 201.33 are evenly spaced along the axial direction of the primary welding roller 201.31. The outer peripheral wall of the primary welding rings 201.33 is provided with textures. The primary welding assembly 201.32 is located above the primary welding roller 201.31.

[0093] The primary welding assembly 201.32 includes a horizontally arranged lifting plate 201.321, which is driven up and down by a primary welding cylinder 201.322. A plurality of primary welding heads 201.323 are provided at the bottom of the lifting plate 201.321, and the plurality of primary welding heads 201.323 correspond one to one with the primary welding ring 201.33.

[0094] A connecting plate 201.324 is horizontally arranged between the primary welding head 201.323 and the lifting plate 201.321, and a transmission rod 201.325 and a transmission plate 201.326 are arranged between the connecting plate 201.324 and the primary welding head 201.323. The transmission plate 201.326 is horizontally attached to the bottom of the connecting plate 201.324, and the transmission rod 201.325 vertically passes through the transmission plate 201.326. The bottom end of the transmission rod 201.325 is fixedly arranged on the primary welding head 201.323, and the top end of the transmission rod 201.325 is fixedly arranged on the connecting plate 201.324. Four lifting plates are arranged between the lifting plate 201.321 and the transmission plate 201.326. Rod 201.327 and four springs 201.328, the four lifting rods 201.327 are distributed in a matrix, the four springs 201.328 correspond one to one with the four lifting rods 201.327, the lifting rods 201.327 vertically pass through the connecting plate 201.324, one end of the lifting rod 201.327 is fixedly set on the lifting plate 201.321, and the other end of the lifting rod 201.327 is fixedly set on the transmission plate 201.326, the spring 201.328 is sleeved on the lifting rod 201.327, one end of the spring 201.328 is fixedly set on the lifting plate 201.321, and the other end of the spring 201.328 is fixedly set on the top of the connecting plate 201.324;

[0095] While the upper quilt layer 2, the cotton material layer 1, and the lower quilt layer 3 pass around the primary welding roller group 201.2, they pass between the primary welding head 201.323 and the primary welding roller 201.31, and the lower quilt layer 3 abuts against the top of the outer wall of the primary welding ring 201.33, and the upper quilt layer 2 abuts against the bottom of the primary welding head 201.323. The upper quilt layer 2, the cotton material layer 1, and the lower quilt layer 3 are welded together by the primary welding head 201.323 to form a first joint 51, which is the positioning joint 5. The upper quilt layer 2, the cotton material layer 1, and the lower quilt layer 3 are then transported in the length direction.

[0096] In addition, the height of the primary welding head 201.323 can be adjusted by driving the lifting plate 201.321 up and down through the cylinder. Moreover, when the primary welding head 201.323 abuts against the upper quilt layer 2, as the lifting plate 201.321 continues to descend, the lifting plate 201.321 drives the transmission plate 201.326 to descend synchronously through the lifting rod 201.327, and the distance between the transmission plate 201.326 and the connecting plate 201.324 is reduced, and the distance between the lifting plate 201.321 and the connecting plate 201.324 is reduced, and the spring 201.328 is compressed. The elastic action of the spring 201.328 can prevent the primary welding head 201.323 from being subjected to rigid impact, thereby protecting the primary welding head 201.323.

[0097] The primary welding device 201 further includes a heat dissipation pipe 201.4, both ends of which are sealed and fixedly mounted on a first heat dissipation frame. A plurality of heat dissipation branches 201.5 are connected to the heat dissipation pipe 201.4, each corresponding to a plurality of primary welding heads 201.323. During a primary welding process, the heat dissipation pipe 201.4 is connected to an external air supply device to deliver air into the heat dissipation pipe 201.4. The air in the heat dissipation pipe 201.4 is then discharged from each heat dissipation branch 201.5 and applied to the primary welding head 201.323, thereby dissipating heat from the primary welding head 201.323, preventing the primary welding head 201.323 from being damaged due to excessive temperature, and thus protecting the primary welding head 201.323.

[0098] The secondary welding device 202 includes a secondary welding frame 202.1, on which are provided a secondary welding roller group 202.2, a secondary welding mechanism 202.3, and a buffer mechanism 202.4. The secondary welding mechanism 202.3 and the buffer mechanism 202.4 are arranged sequentially from right to left. After the primary welding is completed, the upper quilt layer 2, the cotton material layer 1, and the lower quilt layer 3 successively pass around the secondary welding roller group 202.2 and are then conveyed to the buffer mechanism 202.4. While the upper quilt layer 2, the cotton material layer 1, and the lower quilt layer 3 successively pass around the secondary welding roller group 202.2, the secondary welding mechanism 202.3 welds the width edges of the upper quilt layer 2, the cotton material layer 1, and the lower quilt layer 3 to form a second joint 41, thus completing the primary stitching.

[0099] During the period when the tertiary welding device 203 is welding the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3, the tertiary welding device 203 is in a state of stopping the conveying of the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3. At this time, the conveying amount of the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 is absorbed by the buffer mechanism 202.4. After the tertiary welding device 203 completes the welding, the tertiary welding device 203 conveys the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 normally, and the conveying speed at the secondary welding device 202 is less than the conveying speed at the tertiary welding device 203.

[0100] The secondary welding mechanism 202.3 includes a flanging roller 202.31, two flanging assemblies 202.32, and two secondary welding assemblies 202.33. The two flanging assemblies 202.32 are arranged symmetrically in front and back, and the two secondary welding assemblies 202.33 correspond one to one with the two welding assemblies. The flanging assemblies 202.32 and the secondary welding assemblies 202.33 are arranged in sequence from right to left, and the flanging roller 202.31 is parallel to the front-to-back direction.

[0101] The flanging assembly 202.32 includes a pressure roller 202.321 and a stop rod 202.322. The pressure roller 202.321 is located above the flanging roller 202.31. A flanging slider 202.323 is provided above the pressure roller 202.321. The flanging slider 202.323 is connected to the pressure roller 202.321. A lead screw 202.324 is provided on the flanging slider 202.323. The lead screw 202.324 is rotatably connected to the secondary welding frame 202.1. The lead screw 202.324 is screwed to the flanging slider 202.323. The screw 202.324 is connected with a rocker 202.325 at one end, and the flanging slider 202.323 is provided with a flanging guide rod 202.326, and the flanging guide rod 202.326 is fixedly connected to the secondary welding frame 202.1. The flanging guide rod 202.326, the screw 202.324 and the pressure roller 202.321 are all parallel to the flanging roller 202.31, and the baffle rod 202.322 is tilted and arranged on the left side of the pressure roller 202.321, and the baffle rod 202.322 is fixedly connected to the secondary welding frame 202.1;

[0102] The length of the flanging roller 202.31 is greater than the width of the lower quilt layer 3, and the distance between the front end of the front pressure roller 202.321 and the rear end of the rear pressure roller 202.321 is equal to the width of the upper quilt layer 2;

[0103] After the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 pass through between the pressing roller 202.321 and the flanging roller 202.31, only the lower quilt layer 3 protrudes from the cotton material layer 1 and abuts against the stop rod 202.322. The stop rod 202.322 blocks the lower quilt layer 3 protruding from the cotton material layer 1 and flips it over. The upper quilt layer 2 abuts against the bottom of the pressing roller 202.321, and the lower quilt layer 3 abuts against the top of the flanging roller 202.31, which is convenient for The upper quilt layer 2 and the lower quilt layer 3 on the right side of the stop rod 202.322 are positioned. In addition, when the width between the upper quilt layer 2 and the cotton material layer 1 is changed due to production needs, the rocker 202.325 is rotated to rotate the lead screw 202.324 and drive the flanging slider 202.323 to move forward or backward on the flanging guide rod 202.326. The movement of the flanging slider 202.323 drives the pressure roller 202.321 to move synchronously.

[0104] The pressure roller 202.321 includes a rotating shaft 202.3211, which is fixedly connected to the flanging slider 202.323. The middle end of the rotating shaft 202.3211 is equipped with an intermediate roller body 202.3212, and the two ends of the rotating shaft 202.3211 are equipped with end roller bodies 202.3213.

[0105] The secondary welding assembly 202.33 includes a secondary welding wheel 202.331 and a secondary welding head 202.332 arranged in an upper and lower manner. The wheel surface of the secondary welding wheel 202.331 is provided with a texture. The secondary welding wheel 202.331 is driven to rise and fall by the secondary welding cylinder 202.333. The secondary welding wheel 202.331 is driven to rotate by the secondary welding drive unit. The upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 are moved from the secondary welding head 202.332 and the secondary welding head 202.332 to the secondary welding head 202.332. The connecting wheels 202.331 pass through each other, and the flanged portion of the lower quilt layer 3 is completely adhered to the top of the upper quilt layer 2 by the extrusion of the secondary welding wheel 202.331. In addition, the flanged portion of the lower quilt layer 3, the unflagged portion of the lower quilt layer 3, the cotton material layer 1 and the upper quilt layer 2 are firmly welded by the secondary welding head 202.332, completing the secondary welding action and forming the second connection 41. In addition, the secondary welding cylinder 202.333 is used to adjust the height of the secondary welding wheel 202.331.

[0106] The buffer mechanism 202.4 includes a first buffer frame 202.41 and a second buffer frame 202.42 arranged in an upper and lower manner. The first buffer frame 202.41 is provided with a plurality of first buffer rollers 202.43 arranged in sequence from left to right, and the second buffer frame 202.42 is provided with a plurality of second buffer rollers 202.44 arranged in sequence from left to right. The first buffer frame 202.41 is fixedly provided on the secondary welding frame 202.1, and a buffer shaft 202.45 is rotatably connected to the secondary welding frame 202.1. The buffer shaft 202.45 is parallel to the front and rear directions, and the buffer shaft 202.45 is driven to rotate back and forth by the buffer driving unit. The second buffer frame 202.42 is fixedly provided on the buffer shaft 202 .45, after the secondary welding is completed, the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 alternately pass around the multiple first buffer rollers 202.43 and the multiple second buffer rollers 202.44 in turn. During the subsequent three-time welding device 203 performs the welding action, the buffer driving unit drives the buffer shaft 202.45 to rotate, and the rotation of the buffer shaft 202.45 drives the second buffer frame 202.42 to swing downward, thereby increasing the distance around the first buffer roller 202.43 and the second buffer roller 202.44 to achieve buffering. When the subsequent secondary welding device 202 performs the conveying action, the buffer shaft 202.45 drives the second buffer frame 202.42 to swing upward, reducing the distance around the first buffer roller 202.43 and the second buffer roller 202.44;

[0107] The three-way welding device 203 includes a three-way welding frame 203.1, on which a three-way welding roller group 203.2, a three-way welding mechanism 203.3 and a traction mechanism 203.4 are provided. The three-way welding mechanism 203.3 and the traction mechanism 203.4 are arranged on the left and right sides. The upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 pass around the three-way welding roller group 203.2. The three-way welding mechanism 203.3 is used to form a third connection 42 at the edges of the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 in the length direction, that is, to complete the secondary stitching. The traction mechanism 203.4 is used to prevent the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 at the three-way welding mechanism 203.3 from moving in the opposite direction when the second buffer frame 202.42 swings downward during welding by the three-way welding mechanism 203.3, thereby achieving a positioning effect and at the same time being used to traction the upper quilt layer 2, the cotton material layer 1 and the lower quilt layer 3 to move;

[0108] The traction mechanism 203.4 includes two adjustment assemblies 203.41 and two traction rollers 203.42 arranged vertically. The traction rollers 203.42 are parallel to the front-to-back direction. The two adjustment assemblies 203.41 are respectively arranged on the front and rear sides of the traction rollers 203.42. The two ends of the traction rollers 203.42 are respectively connected to the two adjustment assemblies 203.41. The adjustment assemblies 203.41 are used to adjust the vertical distance between the two traction rollers 203.42.

[0109] The adjustment assembly 203.41 includes a support base 203.411, which is fixedly mounted on the three-stage welding frame 203.1. The traction roller 203.42 below is rotatably connected to the support base 203.411. A strip groove 203.412 is provided on the top of the support base 203.411. The strip groove 203.412 is vertically arranged. A moving block 203.413 matching the strip groove 203.412 is provided in the strip groove 203.412. The moving block 203.413 The movable block 203.413 is rotatably connected to the traction roller 203.42 above. A plurality of adjustment plates 203.414 arranged from top to bottom are inserted between the bottom of the movable block 203.413 and the bottom of the inner bottom of the strip groove 203.412. The top of the support seat 203.411 is fixedly connected to a fixed plate 203.146 by a locking screw 203.415. A positioning screw 203.417 is vertically inserted on the fixed plate 203.146. The positioning screw 203.417 is threadedly connected to the fixed plate 203.146. The positioning screw 203.417 is threadedly connected to the fixed plate 203.146. The bottom end of .417 is against the top of the moving block 203.413. When the vertical distance between the two traction rollers 203.42 needs to be adjusted according to the thickness of the product, loosen the positioning screw 203.417 and adjust the height of the moving block 203.413 by changing the number of the adjustment plates 203.414, that is, adjust the vertical distance between the two traction rollers 203.42. After the adjustment is completed, tighten the positioning screw 203.417 so that the positioning screw 203.417 is against the top of the moving plate. In addition, when traction is in progress, the upper quilt layer 2 The cotton layer 1 and the lower cover layer 3 pass through two traction rollers 203.42. The upper and lower traction rollers 203.42 are externally connected to a traction drive unit. The traction drive unit drives the two traction rollers 203.42 to rotate, and the two traction rollers 203.42 turn in opposite directions. The rotation of the traction rollers 203.42 drives the product to move toward the three-time welding mechanism 203.3. When the three-time welding mechanism 203.3 performs the three-time welding action, the traction rollers 203.42 stop rotating. After the three-time welding action is completed, the traction rollers 203.42 continue to rotate;

[0110] The traction roller 203.42 is provided with a plurality of anti-skid grooves 203.43, which are distributed along the axial direction of the traction roller 203.42. The anti-skid grooves 203.43 increase the friction between the traction roller 203.42 and the product to prevent slipping.

[0111] The tertiary welding mechanism 203.3 includes a tertiary welding wheel 203.31 and a tertiary welding head 203.32 arranged vertically. The tertiary welding head 203.32 is in the shape of an elongated strip and is parallel to the front-to-back direction. The tertiary welding wheel 203.31 is driven to rise and fall by a tertiary welding cylinder 203.33. A translation assembly 203.34 is connected to the cylinder body of the tertiary welding cylinder 203.33. The translation assembly 203.34 drives the tertiary welding cylinder 203.33 to move forward or backward. The wheel surface of the tertiary welding wheel 203.31 is provided with textures.

[0112] The translation assembly 203.34 includes two rotating shafts 203.341 arranged in a front-to-rear manner. The rotating shafts 203.341 are vertically arranged and rotatably connected to the three-stage welding frame 203.1 through bearings 203.342. A transmission wheel 203.343 is installed on the top of each of the two rotating shafts 203.341. The two transmission wheels 203.343 are connected by a transmission belt 203.344. One of the rotating shafts 203.341 is driven by the motor 203. 345 drives, the cylinder body of the tertiary welding cylinder 203.33 is fixedly arranged on the transmission belt 203.344, the cylinder body of the tertiary welding cylinder 203.33 is fixedly connected to the tertiary welding slider 203.346, the tertiary welding slider 203.346 is penetrated by a tertiary welding guide rod 203.347, both ends of the tertiary welding guide rod 203.347 are fixedly connected to the tertiary welding frame 203.1, and the tertiary welding guide rod 203.347 is parallel to the front-back direction;

[0113] The motor 203.345 is started, causing the rotating shaft 203.341 connected to the motor 203.345 to rotate on the bearing 203.342. The rotation of the rotating shaft 203.341 drives the transmission wheel 203.343 connected thereto to rotate, and drives another transmission wheel 203.343 to rotate through the transmission belt 203.344. When the transmission belt 203.344 moves, it drives the tertiary welding cylinder 203.33 to move forward or backward, and at the same time drives the tertiary welding slider 203.346 to move synchronously on the tertiary welding guide rod 203.347. The product is produced between the tertiary welding wheel 203.31 and the tertiary welding head 203.32, and the product is laid flat on the tertiary welding head 203.33. 03.32, during welding, the tertiary welding cylinder 203.33 drives the tertiary welding wheel 203.31 to abut against the product, and the product stops being transported and is in a stationary state. The forward or backward movement of the tertiary welding cylinder 203.33 drives the tertiary welding wheel 203.31 to move synchronously. The tertiary welding wheel 203.31 rolls on the product, so that the tertiary welding head 203.32 performs three welds on the product, and the three welding tracks are parallel to the width direction of the product. After the three weldings are completed, the tertiary welding cylinder 203.33 drives the tertiary welding wheel 203.31 to rise. At this time, the product continues to be transported to the set distance and then stops, and the next three welding action is carried out, and this cycle is repeated;

[0114] The cutting system 300 includes a cutting frame 301, on which a cutting mechanism 302, a conveying mechanism 303, and a cutting roller group 304 are arranged from left to right. The product after three welding passes through the cutting roller group 304 and is conveyed by the conveying mechanism 303. The cutting mechanism 302 is used to cut the product according to the set length to form a single medical sheet, and the cutting position is at the third connection point 42. A blanking frame 305 is provided on the lower left side of the cutting mechanism 302, and a blanking conveyor belt 306 is provided on the blanking frame 305. After the cut medical sheet falls onto the blanking conveyor belt 306, it is transported to the packaging station by the blanking conveyor belt 306 for packaging and storage.

[0115] The conveying mechanism 303 includes a conveying platform 303.1. Above the conveying platform 303.1 are disposed first and second conveying rollers 303.2 and 303.3, which are arranged left and right. The first and second conveying rollers 303.2 and 303.3 are parallel to the front-to-back direction. The first and second conveying rollers 303.2 and 303.3 are connected by a plurality of traction belts 303.4, which are arranged sequentially from front to back. After secondary welding, the product is conveyed to the conveying platform 303.1, and the traction belts 303.4 abut against the top of the product. The first conveying roller 303.2 rotates, and the traction belts 303.4 drive the second conveying rollers 303.3 to rotate. During the rotation of the traction belts 303.4, the product is driven to the left to the cutting mechanism 302 by friction, thereby achieving product conveyance.

[0116] The cutting mechanism 302 includes a blade 302.1 and a cutting plate 302.2 arranged vertically. The blade 302.1 is driven up and down by a cutting cylinder 302.3. After the product is conveyed between the cutting plate 302.2 and the blade 302.1, the cutting cylinder 302.3 drives the blade 302.1 down, causing the blade 302.1 to cut the product.

[0117] The primary welding head 201.323, the secondary welding head 202.332 and the tertiary welding head 203.32 are all ultrasonic welding heads;

[0118] In summary, the cotton layer 1 is directly fed into the upper quilt layer 2 and the lower quilt layer 3 after being combed twice, and then cut along the length direction and ultrasonically sewn on the four sides so that the quilt can be formed in one piece. At the same time, the quilt made in this way has a fluffier cotton mesh, more uniform weight, lower cost, higher efficiency, and less production time for a single quilt than the quilts on the original market.

[0119] In addition, the positioning connection 5 can prevent the cotton material layer 1 from making relative displacement between the upper quilt layer 2 and the lower quilt layer 3, thereby preventing the cotton material layer 1 from gathering into a mass.

[0120] In addition to the above embodiments, the present invention also includes other implementation methods. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of protection of the claims of the present invention.

Claims

1. A method for producing a medical sheet, characterized in that The medical sheet production equipment is used to perform the operation. First, an upper quilt cover layer (2), a cotton material layer (1), and a lower quilt cover layer (3) are stacked in sequence to form a three-layer structure. Then, the middle portions of the upper quilt cover layer (2), the cotton material layer (1), and the lower quilt cover layer (3) are positioned and connected to form a positioning connection (5). Finally, the edges of the upper quilt cover layer (2), the cotton material layer (1), and the lower quilt cover layer (3) are connected and fixed. The medical sheet production equipment comprises a feeding system (100) and a welding system (200) arranged in sequence from right to left, wherein the feeding system (100) is used to transport the stacked raw materials to the welding system (200), and the welding system (200) is used to position and connect the middle of the stacked raw materials to form a positioning connection (5), and then connect and fix the edges of the stacked raw materials; The welding system (200) comprises a primary welding device (201), a secondary welding device (202) and a tertiary welding device (203) which are arranged in sequence, wherein the primary welding device (201) is used to weld the middle of the stacked raw materials to form a first connection (51), the secondary welding device (202) is used to weld both sides of the stacked raw materials in the width direction to form a second connection (41), and the tertiary welding device (203) is used to weld both sides of the stacked raw materials in the length direction and the cut portion of the stacked raw materials to form a third connection (42), and the second connection (41) and the third connection (42) constitute an edge connection (4).

2. A method for producing a medical sheet according to claim 1, characterized in that: The primary welding device (201) comprises a primary welding frame (201.1), and a primary welding roller group (201.2) and a primary welding mechanism (201.3) are provided on the primary welding frame (201.1); The primary welding mechanism (201.3) comprises a primary welding roller (201.31) and a primary welding assembly (201.32); the primary welding roller (201.31) is parallel to the front-back direction; a plurality of primary welding rings (201.33) are coaxially fixedly sleeved on the outer peripheral wall of the primary welding roller (201.31); the plurality of primary welding rings (201.33) are evenly spaced along the axial direction of the primary welding roller (201.31); and the primary welding assembly (201.32) is located above the primary welding roller (201.31); The primary welding assembly (201.32) comprises a horizontally arranged lifting plate (201.321), the lifting plate (201.321) being driven to rise and fall by a primary welding cylinder (201.322), a plurality of primary welding heads (201.323) being arranged at the bottom of the lifting plate (201.321), the plurality of primary welding heads (201.323) corresponding one-to-one to the primary welding rings (201.33).

3. A method for producing a medical sheet according to claim 2, characterized in that: The primary welding device (201) further comprises a heat dissipation pipe (201.4), both ends of the heat dissipation pipe (201.4) are sealed and fixedly arranged on a first heat dissipation frame, a plurality of heat dissipation branch pipes (201.5) are connected to the heat dissipation pipe (201.4), and the plurality of heat dissipation branch pipes (201.5) correspond one-to-one to the plurality of primary welding heads (201.323).

4. A method for producing a medical sheet according to claim 1, characterized in that: The secondary welding device (202) comprises a secondary welding frame (202.1), on which a secondary welding roller group (202.2), a secondary welding mechanism (202.3) and a buffer mechanism (202.4) are arranged, the secondary welding mechanism (202.3) and the buffer mechanism (202.4) being arranged in sequence from right to left; The secondary welding mechanism (202.3) comprises a flanging roller (202.31), two flanging assemblies (202.32) and two secondary welding assemblies (202.33); the two flanging assemblies (202.32) are arranged symmetrically front to back; the two secondary welding assemblies (202.33) correspond one to one to the two welding assemblies; the flanging assemblies (202.32) and the secondary welding assemblies (202.33) are arranged sequentially from right to left; and the flanging roller (202.31) is parallel to the front-to-back direction; The flanging assembly (202.32) comprises a pressure roller (202.321) and a stop rod (202.322); the pressure roller (202.321) is located above the flanging roller (202.31); a flanging slider (202.323) is provided above the pressure roller (202.321); the flanging slider (202.323) is connected to the pressure roller (202.321); a lead screw (202.324) is provided on the flanging slider (202.323); the lead screw (202.324) is rotatably connected to the secondary welding frame (202.1); the lead screw (202.324) is rotatably connected to the flanging slider (202.323); Threaded connection, one end of the lead screw (202.324) is installed with a rocker (202.325), the flanging slider (202.323) is provided with a flanging guide rod (202.326), the flanging guide rod (202.326) is fixedly connected to the secondary welding frame (202.1), the flanging guide rod (202.326), the lead screw (202.324) and the pressure roller (202.321) are all parallel to the flanging roller (202.31), the baffle rod (202.322) is obliquely arranged on the left side of the pressure roller (202.321), and the baffle rod (202.322) is fixedly connected to the secondary welding frame (202.1); The secondary welding assembly (202.33) comprises a secondary welding wheel (202.331) and a secondary welding head (202.332) arranged vertically, the secondary welding wheel (202.331) being driven to rise and fall by a secondary welding cylinder (202.333), and the secondary welding wheel (202.331) being driven to rotate by a secondary welding drive unit; The buffer mechanism (202.4) comprises a first buffer frame (202.41) and a second buffer frame (202.42) arranged in an upper and lower manner; the first buffer frame (202.41) is provided with a plurality of first buffer rollers (202.43) arranged in sequence from left to right; the second buffer frame (202.42) is provided with a plurality of second buffer rollers (202.44) arranged in sequence from left to right; the first buffer frame (202.41) is fixedly arranged on the secondary welding frame (202.1); a buffer shaft (202.45) is rotatably connected to the secondary welding frame (202.1); the buffer shaft (202.45) is parallel to the front-rear direction; the buffer shaft (202.45) is driven to rotate back and forth by a buffer drive unit; and the second buffer frame (202.42) is fixedly arranged on the buffer shaft (202.45).

5. A method for producing a medical sheet according to any one of claims 1 to 4, characterized in that: The tertiary welding device (203) comprises a tertiary welding frame (203.1), on which a tertiary welding roller group (203.2), a tertiary welding mechanism (203.3) and a traction mechanism (203.4) are arranged, and the tertiary welding mechanism (203.3) and the traction mechanism (203.4) are arranged on the left and right. The traction mechanism (203.4) comprises two adjustment components (203.41) and two traction rollers (203.42) arranged vertically, the traction rollers (203.42) being parallel to the front-back direction, the two adjustment components (203.41) being respectively arranged on the front and rear sides of the traction roller (203.42), the two ends of the traction roller (203.42) being respectively connected to the two adjustment components (203.41), and the adjustment components (203.41) being used to adjust the vertical distance between the two traction rollers (203.42); The tertiary welding mechanism (203.3) comprises a tertiary welding wheel (203.31) and a tertiary welding head (203.32) arranged vertically. The tertiary welding head (203.32) is in the shape of an elongated strip and is parallel to the front-rear direction. The tertiary welding wheel (203.31) is driven to rise and fall by a tertiary welding cylinder (203.33). A translation assembly (203.34) is connected to the cylinder body of the tertiary welding cylinder (203.33). The translation assembly (203.34) drives the tertiary welding cylinder (203.33) to move forward or backward.

6. The method for producing a medical sheet according to claim 1, wherein: The positioning connection (5) is formed by ultrasonic welding, and the ultrasonic welding is performed using a primary welding device (201).

7. A method for producing a medical sheet according to claim 1 or 6, characterized in that: When the edges of the upper quilt layer (2), the cotton material layer (1) and the lower quilt layer (3) are connected and fixed, ultrasonic welding is used, and the ultrasonic welding is performed sequentially using a secondary welding device (202) and a tertiary welding device (203).

8. The method for producing a medical sheet according to claim 1, wherein: The upper quilt cover layer (2), the cotton material layer (1) and the lower quilt cover layer (3) are respectively made of non-woven fabric, chemical fiber combed cotton and non-woven fabric.

9. The method for producing a medical sheet according to claim 1, wherein: The positioning connection points (5) are in the form of dots or lines. The dots are arranged in an array, and the lines are arranged in a horizontal, vertical, oblique or staggered manner in various directions.

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