Dressing paste production equipment and production process thereof

Abstract

The invention provides dressing paste production equipment and a production process thereof, and relates to the technical field of dressing pastes.The dressing paste production equipment comprises a rack, the rack is provided with a first press-fit die cutting assembly, a second press-fit die cutting assembly, a PE film press-fit assembly and a die cutting packaging assembly, the first press-fit die cutting assembly comprises a first press-fit tool apron and a sheet die cutting press-fit tool apron, and the second press-fit die cutting assembly comprises a second press-fit tool apron; the first press-fit die cutting assembly comprises a foam die cutting tool apron and a first press-fit tool apron, the second press-fit die cutting assembly comprises a foam die cutting tool apron and a second press-fit tool apron, the PE film press-fit assembly comprises two edge folding mechanisms and a PE film press-fit tool apron, and an easy-to-tear sealing part is formed at the bottom of the dressing patch obtained through die cutting. And the produced dressing patch has a better sterile effect and is easy to tear when in use.

Description

Technical Field

[0001] The present invention relates to the technical field of dressing patches, and in particular to a dressing patch production device and its production process. Background Art

[0002] Dressing patches are commonly used for applying medicine to wounds, isolating harmful microorganisms from the outside world, preventing wound infections, and at the same time absorbing exudate flowing out of the wounds to keep the wounds dry. This makes the area in the middle of the dressing patch in contact with the wound have high aseptic requirements, while the area on the outside of the dressing patch in contact with the skin outside the wound has low aseptic requirements. Currently, a whole piece of PE film is usually provided at the bottom of the dressing patch, which makes it impossible for the dressing patch to adapt to PE films of different grades according to the aseptic requirements of different areas and is not easy to tear. Some existing dressing patches have two PE films covering the bottom, with the inner sides of the two PE films stacked in the middle of the dressing patch, and the sealing performance at the joint of the two PE films is poor, greatly reducing the aseptic effect of the dressing patch.

[0003] Therefore, a dressing patch production device and its production process that solve the above problems are needed. Summary of the Invention

[0004] The present invention provides a dressing patch production device and its production process, which realize the automated production and packaging of dressing patches. Through the setting of an easy-to-tear sealing part, the produced dressing patches have better aseptic effects and are easy to tear during use.

[0005] One technical solution of the present invention is implemented as follows: A dressing patch production device, including a frame, on which are provided: A first pressing and die-cutting assembly for pressing and die-cutting an absorbent resin layer and a non-woven fabric into several composite sheets and sequentially pressing the composite sheets onto a PU film. The first pressing and die-cutting assembly includes a first pressing knife holder and a sheet die-cutting and pressing knife holder; A second pressing and die-cutting assembly for die-cutting and opening windows in a foam tape and sequentially pressing the PU film with the composite sheet attached, the die-cut foam tape, and silicone gel together to form a composite tape after pressing. The second pressing and die-cutting assembly includes a foam die-cutting knife holder and a second pressing knife holder; A PE film pressing assembly for folding a first PE film and a second PE film and pressing the folded first PE film, the folded second PE film, and a third PE film onto the bottom of the composite tape. The PE film pressing assembly includes two hemming mechanisms and a PE film pressing knife holder. After pressing, the first PE film, the second PE film, and the third PE film form an easy-to-tear sealing part, and the third PE film is located between the first PE film and the second PE film; A die-cutting and packaging assembly is used for die-cutting the composite material strip into sheet-shaped dressing patches and packaging the dressing patches, wherein an easy-tear sealing portion is formed at the bottom of the dressing patch obtained by die-cutting.

[0006] As a preferred technical solution, the easy-tear sealing portion includes a middle sealing portion, two side sealing portions and two easy-tear seam sealing portions, the middle sealing portion is composed of the middle portion of the third PE film, the two side sealing portions are respectively composed of the first PE film or the second PE film, and the first PE film and the second PE film are folded after forming a folded edge folded outward on the inner side, and each of the easy-tear seam sealing portions is composed of a folded edge and a corresponding side edge of the third PE film.

[0007] As a preferred technical solution, the sheet die-cutting and laminating knife seat is provided with a sheet die-cutting knife roller and a sheet die-cutting bottom roller for die-cutting the non-woven fabric and the water-absorbing resin layer, a PU film laminating roller is provided downstream of the sheet die-cutting bottom roller, a sheet transmission bottom roller is provided downstream of the PU film laminating roller, and the sheet transmission bottom roller, the PU film laminating roller, the sheet die-cutting bottom roller and the sheet die-cutting knife roller are sequentially connected in transmission.

[0008] As a preferred technical solution, the water-absorbing resin layer, the non-woven fabric and the low-viscosity film are inserted into the sheet die-cutting and pressing knife seat from between the sheet die-cutting knife roller and the sheet die-cutting bottom roller, and a row of the composite sheets is pasted on the low-viscosity film after die-cutting and waste discharge.

[0009] As a preferred technical solution, the low-viscosity film and the PU film after die-cutting and waste discharge pass through the sheet die-cutting and pressing knife seat between the sheet die-cutting bottom roller and the PU film pressing roller at the same time, and the composite sheet is pressed onto the PU film in turn.

[0010] As a preferred technical solution, each of the folding mechanisms includes a fixed seat, which is fixedly installed on the frame, and a sliding platform is slidably installed on the fixed seat. A pressure plate and a guide plate are fixedly installed on the top surface of the sliding platform. A passing gap is provided between the pressure plate and the sliding platform, and a folding gap is provided between the guide plate and the sliding platform, and the folding gap gradually decreases from one end to the other end.

[0011] As a preferred technical solution, two guide columns are fixedly installed on the fixed seat, and the sliding platform is slidably installed on the two guide columns. A screw is rotatably installed on the fixed seat, and a nut is threadedly installed on the screw, and the nut is fixedly installed on the sliding platform. An adjusting handwheel is installed at one end of the screw, and the two guide columns and the screw extend along the width direction of the composite material strip.

[0012] As a preferred technical solution, the die-cutting and packaging assembly includes a contour die-cutting tool holder, a packaging mechanism, and a cutting tool holder that are sequentially installed on the frame along the production direction of the dressing patch, and the contour die-cutting tool holder is disposed downstream of the second pressing tool holder.

[0013] Another technical solution of the present invention is implemented as follows: The production process of the dressing patch production equipment specifically includes the following steps: S1. Press the water-absorbing resin layer, the non-woven fabric, and the low-adhesion film: Through the first pressing tool holder, the water-absorbing resin layer, the non-woven fabric, and the low-adhesion film are sequentially pressed together. S2. Die-cut the water-absorbing resin layer and the non-woven fabric: Through the sheet die-cutting and pressing tool holder, the pressed water-absorbing resin layer and non-woven fabric are die-cut into a plurality of the composite sheets, the low-adhesion film is completely retained without being die-cut, and after die-cutting and waste discharging, the composite sheets are attached to the low-adhesion film. S3. Transfer the composite sheet to the PU film: The low-adhesion film with the composite sheet attached and the PU film simultaneously pass through the sheet die-cutting and pressing tool holder, the composite sheet is attached to the PU film, and after pressing, the low-adhesion film is peeled off. S4. Die-cut the foam tape: Through the foam die-cutting tool holder, a row of windows are die-cut out of the foam tape. S5. Press the PU film, the foam tape, and the silicone gel: Through the pressing tool holder, the PU film with the composite sheet attached, the die-cut foam tape, and the silicone gel are sequentially pressed together, and after pressing, the composite tape is obtained and the composite sheet is located within the corresponding windows. S6. Press three PE films and the composite tape: Through the two folding mechanisms, the inner sides of the first PE film and the second PE film are respectively folded to form a hem, and the folded first PE film, the folded second PE film, and the third PE film are pressed to the bottom of the composite tape. After pressing, the first PE film and the second PE film are attached to both sides of the composite tape, the third PE film is attached to the middle of the composite tape, and both sides of the third PE film are respectively pressed against the two hems. S7. Package the dressing patch: Through the die-cutting and packaging assembly, the composite tape with the PE film pressed is die-cut into sheet-shaped dressing patches and the dressing patches are hermetically packaged.

[0014] By adopting the above technical solutions, the beneficial effects of the present invention are as follows: Since the dressing patch production equipment includes a first lamination and die-cutting assembly, a second lamination and die-cutting assembly, a PE film lamination assembly, and a die-cutting and packaging assembly, during the use of this equipment, the non-woven fabric and the water-absorbing resin layer are laminated together by the first lamination tool holder. The laminated non-woven fabric and water-absorbing resin layer are die-cut into composite sheets by the sheet die-cutting and lamination tool holder, and the composite sheets are transferred and attached to the PU film. Compared with the existing processing method of die-cutting the tape first and then laminating for dressing patches, the composite sheets in this dressing patch adopt the processing method of laminating first and then die-cutting, which greatly avoids the contamination of the bonding surface between the non-woven fabric and the water-absorbing resin layer and improves the sterility of the composite sheets.

[0015] Then, the composite sheet, the foam with a row of windows die-cut, and the silicone gel are successively laminated together by the second lamination tool holder to form a composite tape. The folded first PE film, the folded second PE film, and the third PE film are laminated to the bottom of the composite tape through the PE film lamination assembly, so that an easy-to-tear sealing part is formed at the bottom of the composite tape. Then, the composite tape is die-cut into sheet-shaped dressing patches through the die-cutting and packaging assembly, and the dressing patches are packaged. In the present invention, the bottom of the produced dressing patch is attached with the first PE film, the second PE film, and the third PE film, and an easy-to-tear sealing part is formed. The easy-to-tear sealing part divides and seals the bottom of the dressing patch, improving the aseptic effect of the dressing patch.

[0016] Since the easy-to-tear sealing part includes a middle sealing part and two side sealing parts, the first PE film and the second PE film in the two side sealing parts can use PE films with general aseptic effects or grades to seal the areas with lower aseptic requirements on both sides of the dressing patch, and the third PE film in the middle sealing part can use PE films with better aseptic effects or higher grades to seal the area with higher aseptic requirements in the middle of the dressing patch. Therefore, in the present invention, by setting the easy-to-tear sealing part on the dressing patch, the bottom of the dressing patch is divided and sealed according to the aseptic grade requirements of the dressing patch, improving the aseptic effect of the dressing patch and also avoiding the occurrence of a higher cost caused by using a whole piece of high-grade PE film.

[0017] Since the easy-to-tear sealing part includes two easy-to-tear joint sealing parts, and the easy-to-tear joint sealing part includes a hem and the side of the third PE film, by setting a hem at the PE film joint of this dressing patch and the side of the third PE film pressing against the hem, compared with the existing dressing patch, the dressing patch in the present invention forms a double-sealing structure at the PE film joint, avoiding the occurrence of contamination caused by poor sealing at the PE film joint of the dressing patch, further improving the aseptic effect of the dressing patch, and the setting of the hem makes it easier to tear off the first PE film, the second PE film, and the third PE film.

[0018] Since the dressing patch production equipment includes a first pressing and die-cutting assembly, the first pressing and die-cutting assembly includes a sheet die-cutting and pressing tool holder. A sheet die-cutting roller, a sheet die-cutting bottom roller, a PU film pressing roller, and a sheet driving bottom roller are arranged on the sheet die-cutting and pressing tool holder. During the process of processing the dressing patch, the pressed water-absorbing resin and non-woven fabric pass through between the sheet die-cutting roller and the sheet die-cutting bottom roller under the traction of the low-adhesion film, and the water-absorbing resin and non-woven fabric are die-cut into a composite sheet. The composite sheet and the PU film pass through between the sheet die-cutting bottom roller and the PU film pressing roller simultaneously under the traction of the low-adhesion film, that is, the composite sheet is pressed onto the PU film. After passing through, the low-adhesion film is peeled off from the composite sheet. Therefore, by setting a sheet die-cutting and pressing tool holder, the present invention realizes the die-cutting and forming of the composite sheet and the transfer and pasting process of the composite sheet at the same station, optimizing the equipment structure.

[0019] The present invention realizes the automatic production and packaging of dressing patches with non-woven fabric, a water-absorbing resin layer, and foam as the dressing core. Among them, the water-absorbing resin layer is a high-molecular polymer that can absorb several times its own weight of liquid. This super absorbent capacity can quickly absorb wound exudate, keep the wound dry, and reduce the irritation of the exudate to the surrounding skin. Compared with the existing dressing patches with foam as the dressing core, this dressing patch has good liquid absorption capacity, avoiding the impact on the wound caused by frequent dressing changes, and is especially suitable for wounds such as burns and ulcers with more exuded liquid. At the same time, in this dressing patch, the foam is a porous soft material that can fit the wound and absorb the exudate at the wound. Moreover, the porous structure of the foam and the non-woven fabric with good air permeability can reduce the damp feeling of the wound and the skin around the wound, improving the comfort of this dressing patch.

[0020] Since the dressing patch production equipment includes a hemming mechanism, in the present invention, the first PE film and the second PE film respectively pass through the corresponding through gaps, and one side of the first PE film and the second PE film extends into the corresponding hemming gaps. As the first PE film and the second PE film advance, the sides of the first PE film and the second PE film gradually move from the large end to the small end of the corresponding hemming gaps. Under the guidance of the corresponding hemming gaps, the sides of the first PE film and the second PE film are gradually folded outward to form hems. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a structural schematic diagram of the present invention; Figure 2It is a schematic structural diagram of a sheet die-cutting and pressing tool holder; Figure 3 It is a schematic structural diagram of the through-gap; Figure 4 It is a schematic structural diagram of one of the hemming mechanisms; Figure 5 It is a schematic structural diagram of the encapsulation mechanism; Figure 6 It is a partial reference diagram of the production process; Figure 7 It is another partial reference diagram of the production process.

[0023] Among them: 1. Superabsorbent resin layer; 2. Non-woven fabric; 3. Composite sheet; 4. PU film; 5. First pressing tool holder; 6. Sheet die-cutting and pressing tool holder; 7. Foam tape; 8. Silicone gel; 9. Composite tape; 10. Foam die-cutting tool holder; 11. Second pressing tool holder; 12. First PE film; 13. Second PE film; 14. Third PE film; 15. PE film pressing tool holder; 16. Easy-tear sealing part; 17. Dressing patch; 18. Sheet die-cutting cutter roller; 19. Sheet die-cutting bottom roller; 20. PU film pressing roller; 21. Sheet driving bottom roller; 22. Fixed seat; 23. Sliding platform; 24. Pressure plate; 25. Guide plate; 26. Through-gap; 27. Hemming gap; 28. Guide post; 29. Lead screw; 30. Nut; 31. Adjusting handwheel; 32. Outer shape die-cutting tool holder; 33. Cutting tool holder; 34. Upper encapsulation template; 35. Electric heating plate; 36. Upper mounting plate; 37. Driving cylinder; 38. Lower mounting plate; 39. Roller; 40. Rotating shaft; 41. Cam; 42. Guide rod; 43. Foam die-cutting cutter roller; 44. Foam die-cutting bottom roller; 45. Foam die-cutting driving bottom roller; 46. First peeling knife; 47. Second peeling knife; 48. First guide roller; 49. Second guide roller; 50. Foam feeding shaft; 51. Low-adhesion film feeding shaft; 52. Non-woven fabric feeding shaft; 53. Superabsorbent resin layer feeding shaft; 54. Silicone gel feeding shaft; 55. PU film feeding shaft; 56. Upper packaging paper feeding shaft; 57. Lower packaging paper feeding shaft; 58. PE film feeding shaft; 59. Low-adhesion film receiving shaft; 60. Composite sheet die-cutting waste receiving shaft; 61. PU film self-adhesive release film receiving shaft; 62. Foam die-cutting waste receiving shaft; 63. Silicone gel self-adhesive film receiving shaft; 64. Silicone gel self-adhesive release film receiving shaft; 65. PU film self-adhesive film receiving shaft; 66. Outer shape die-cutting waste receiving shaft; 67. Window; 68. Hemming; 69. Packaging paper; 70. Low-adhesion film; 71. Lower encapsulation template; 72. Intermediate sealing part; 73. Side sealing part; 74. Easy-tear joint sealing part. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1: As Figures 1-7 Collectively shown, the dressing patch production equipment includes a frame, which is not marked in the figure. The frame is provided with: A first pressing and die-cutting assembly for pressing and die-cutting the water-absorbing resin layer 1 and the non-woven fabric 2 into a plurality of composite sheets 3 and sequentially pressing the composite sheets 3 onto the PU film 4. The first pressing and die-cutting assembly includes a first pressing tool holder 5 and a sheet die-cutting and pressing tool holder 6.

[0026] A second pressing and die-cutting assembly for die-cutting and windowing the foam tape 7 and sequentially pressing the PU film 4 with the composite sheet 3 attached, the die-cut foam tape 7, and the silicone gel 8 together to form a composite tape 9 after pressing. The second pressing and die-cutting assembly includes a foam die-cutting tool holder 10 and a second pressing tool holder 11.

[0027] A PE film pressing assembly for folding the first PE film 12 and the second PE film 13 and pressing the folded first PE film 12, the folded second PE film 13, and the third PE film 14 to the bottom of the composite tape 9. The PE film pressing assembly includes two hemming mechanisms and a PE film pressing tool holder 15, and the third PE film 14 is located between the first PE film 12 and the second PE film 13.

[0028] A die-cutting and packaging assembly for die-cutting the composite tape 9 into sheet-shaped dressing patches 17 and packaging the dressing patches 17. An easy-to-tear sealing portion 16 is formed at the bottom of the die-cut dressing patches 17.

[0029] As Figure 7 Shown, the easy-to-tear sealing portion 16 includes a middle sealing portion 72, two side sealing portions 73, and two easy-to-tear joint sealing portions 74. The middle sealing portion 72 is composed of the middle part of the third PE film 14. The two side sealing portions 73 are respectively composed of the first PE film 12 or the second PE film 13. After folding, the first PE film 12 and the second PE film 13 both form a hem 68 that turns outward on the inner side. Each easy-to-tear joint sealing portion 74 is composed of a hem 68 and the side of the corresponding third PE film 14.

[0030] Among them, a sheet die-cutting and laminating tool holder 6 is provided with a sheet die-cutting knife roller 18 and a sheet die-cutting bottom roller 19 for die-cutting the non-woven fabric 2 and the water-absorbing resin layer 1. A PU film laminating roller 20 is arranged downstream of the sheet die-cutting bottom roller 19, and a sheet driving bottom roller 21 is arranged downstream of the PU film laminating roller 20. The sheet driving bottom roller 21, the PU film laminating roller 20, the sheet die-cutting bottom roller 19 and the sheet die-cutting knife roller 18 are sequentially drivingly connected.

[0031] Moreover, the water-absorbing resin layer 1, the non-woven fabric 2 and the low-adhesion film 70 pass through between the sheet die-cutting knife roller 18 and the sheet die-cutting bottom roller 19 and enter the sheet die-cutting and laminating tool holder 6. After die-cutting and waste discharging, a row of composite sheets 3 is pasted on the low-adhesion film 70.

[0032] In addition, after die-cutting and waste discharging, the low-adhesion film 70 and the PU film 4 simultaneously pass out of the sheet die-cutting and laminating tool holder 6 between the sheet die-cutting bottom roller 19 and the PU film laminating roller 20, and the composite sheet 3 is sequentially laminated onto the PU film 4.

[0033] Secondly, each hemming mechanism includes a fixed seat 22 which is fixedly installed on the frame. A sliding platform 23 is slidably installed on the fixed seat 22. A pressing plate 24 and a guiding plate 25 are fixedly installed on the top surface of the sliding platform 23. A passing gap 26 is provided between the pressing plate 24 and the sliding platform 23, and a hemming gap 27 is provided between the guiding plate 25 and the sliding platform 23. The hemming gap 27 gradually decreases from one end to the other end.

[0034] As Figure 3 and Figure 4 As commonly shown, two guiding columns 28 are fixedly installed on the fixed seat 22. The sliding platform 23 is slidably installed on the two guiding columns 28. A lead screw 29 is rotatably installed on the fixed seat 22. A nut 30 is threadedly installed on the lead screw 29. The nut 30 is fixedly installed on the sliding platform 23. One end of the lead screw 29 is provided with an adjusting handwheel 31. The two guiding columns 28 and the lead screw 29 both extend along the width direction of the composite material tape 9.

[0035] The die-cutting and packaging assembly includes a contour die-cutting tool holder 32, a packaging mechanism and a cutting tool holder 33 which are sequentially installed on the frame along the production direction of the dressing sticker 17. The contour die-cutting tool holder 32 is arranged downstream of the second laminating tool holder 11.

[0036] The encapsulation mechanism includes an upper encapsulation template 34 and a lower encapsulation template 71 that are slidably installed on the frame in the vertical direction. The lower encapsulation template 71 is arranged below the upper encapsulation template 34. A heating plate 35 is fixedly installed at the top of the upper encapsulation template 34. An upper mounting plate 36 is fixedly installed at the top of the heating plate 35. The upper mounting plate 36 is connected with a plurality of driving cylinders 37. The cylinder bodies of the driving cylinders 37 are fixedly installed on the frame. A lower mounting plate 38 is fixedly installed at the bottom of the lower encapsulation template 71. A plurality of rollers 39 are rotatably installed at the bottom of the lower mounting plate 38. A horizontally arranged rotating shaft 40 is rotatably installed on the frame. The rotating shaft 40 is arranged below the rollers 39. A plurality of cams 41 adapted to the rollers 39 are installed on the rotating shaft 40. A plurality of vertically arranged guide rods 42 are fixedly installed on the frame. Both the upper mounting plate 36 and the lower mounting plate 38 are slidably installed on the corresponding guide rods 42.

[0037] The foam die-cutting tool holder 10 is sequentially provided with a foam die-cutting roller 43, a foam die-cutting bottom roller 44, and a foam die-cutting driving bottom roller 45 from top to bottom. The foam die-cutting driving bottom roller 45, the foam die-cutting bottom roller 44, and the foam die-cutting roller 43 are sequentially drivingly connected. In the present invention, the driving connection between the above-mentioned rollers all adopts the way of meshing of driving gears, and the driving gears are not marked in the figure. Both the foam die-cutting driving bottom roller 45 and the sheet material driving bottom roller 21 are drivingly connected with a bottom roller driving motor, and the bottom roller driving motors are all fixedly installed on the frame, and the bottom roller driving motors are not marked in the figure.

[0038] Upstream of the PE film pressing tool holder 15, a first peeling knife 46 for peeling the self-adhesive release film of the silicone gel is provided. Downstream of the PE film pressing tool holder 15, a second peeling knife 47 for peeling the self-adhesive film of the PU film is provided.

[0039] Upstream of the sheet material die-cutting and pressing tool holder 6, a first guiding roller 48 for guiding the peeled low-adhesion film 70 is provided. Downstream of the sheet material die-cutting and pressing tool holder 6, a second guiding roller 49 for guiding the self-adhesive release film of the peeled PU film is provided.

[0040] The frame is provided with a feeding device and a collecting device, and the feeding device comprises a foam feeding shaft 50, a low-viscosity film feeding shaft 51, a non-woven fabric feeding shaft 52, a water-absorbent resin layer feeding shaft 53, a silicone gel feeding shaft 54, a PU film feeding shaft 55, an upper packaging paper feeding shaft 56, a lower packaging paper feeding shaft 57 and three PE film feeding shafts 58 which are rotatably mounted on the frame. The foam feeding shaft 50 is arranged upstream of the foam die-cutting knife seat 10, and the low-viscosity film feeding shaft 51 and the non-woven fabric feeding shaft 52 are arranged upstream of the foam die-cutting knife seat 10. 2 are all arranged upstream of the first laminating knife seat 5, the silicone gel discharge shaft 54 is arranged upstream of the second laminating knife seat 11, the PU film discharge shaft 55 is arranged downstream of the sheet die-cutting laminating knife seat 6, the upper packaging paper discharge shaft 56 and the lower packaging paper discharge shaft 57 are both arranged downstream of the shape die-cutting knife seat 32, three PE film discharge shafts 58 are arranged below the PE film laminating knife seat 15, and two folding mechanisms are arranged between the corresponding PE film discharge shafts 58 and the PE film laminating knife seat 15.

[0041] The collecting device includes a low-viscosity film collecting shaft 59, a composite sheet die-cutting waste collecting shaft 60, a PU film with self-release film collecting shaft 61, a foam die-cutting waste collecting shaft 62, a silicone gel self-release film collecting shaft 63, a silicone gel self-release film collecting shaft 64, a PU film self-release film collecting shaft 65, and a shape die-cutting waste collecting shaft 66.

[0042] A plurality of material shaft driving motors are fixedly mounted on the frame. The above-mentioned material receiving shaft and the above-mentioned material discharging shaft are respectively connected to a material shaft driving motor in driving relationship, and the material shaft driving motors are not marked in the figure.

[0043] Embodiment 2: The production process of the dressing production equipment specifically includes the following steps: S1 , pressing the water-absorbent resin layer 1 , the non-woven fabric 2 and the low-viscosity film 70 : pressing the water-absorbent resin layer 1 , the non-woven fabric 2 and the low-viscosity film 70 together in sequence by means of a first pressing blade holder 5 .

[0044] S2. Die-cutting the water-absorbing resin layer 1 and the non-woven fabric 2: The laminated water-absorbing resin layer 1 and the non-woven fabric 2 are die-cut into a plurality of composite sheets 3 by means of the sheet die-cutting and laminating knife seat 6. The low-viscosity film 70 is completely retained without being die-cut. After die-cutting and waste discharge, the composite sheets 3 are attached to the low-viscosity film 70.

[0045] S3, the composite sheet 3 is transferred to the PU film 4: the low-viscosity film 70 laminated with the composite sheet 3 and the PU film 4 pass through the sheet die-cutting and laminating knife seat 6 at the same time, the composite sheet 3 and the PU film 4 are laminated, and the low-viscosity film 70 is peeled off after lamination.

[0046] In the present invention, before the PU film 4 is bonded to the composite sheet 3, under the guidance of the second guide roller 49, the release film carried by the PU film is peeled off from the PU film 4. After the PU film 4 is bonded to the composite sheet 3, under the guidance of the first guide roller 48, the low-adhesion film 70 is peeled off from the composite sheet 3. The adhesion between the low-adhesion film 70 and the composite sheet 3 is less than the adhesion between the PU film 4 and the composite sheet 3. Therefore, after the low-adhesion film 70 is peeled off, the composite sheet 3 is bonded to the PU film 4.

[0047] S4. Die-cut the foam tape 7: Through the foam die-cutting tool holder 10, a row of windows 67 are die-cut out of the foam tape 7.

[0048] S5. Press and bond the PU film 4, the foam tape 7 and the silicone gel 8: Through the pressing tool holder, the PU film 4 bonded with the composite sheet 3, the die-cut foam tape 7 and the silicone gel 8 are sequentially pressed and bonded together. After pressing, a composite tape 9 is obtained and the composite sheet 3 is located within the corresponding window 67.

[0049] In the present invention, before pressing, the film carried by the silicone gel is peeled off from the silicone gel 8.

[0050] S6. Press and bond three PE films and the composite tape 9: Through two hemming mechanisms, the inner sides of the first PE film 12 and the second PE film 13 are respectively folded to form a hem 68. The folded first PE film 12, the folded second PE film 13 and the third PE film 14 are pressed to the bottom of the composite tape 9. After pressing, the first PE film 12 and the second PE film 13 are bonded to both sides of the composite tape 9, and the third PE film 14 is bonded to the middle of the composite tape 9. Both sides of the third PE film 14 are respectively pressed against the two hems 68.

[0051] S7. Package the dressing patch 17: The composite tape 9 with the PE film pressed thereon is cut into sheet-shaped dressing patches 17 through the outer shape die-cutting tool holder 32. The sheet-shaped dressing patches 17 are hermetically packaged between two wrapping papers 69 through the packaging mechanism. The continuous wrapping paper 69 is cut off through the cutting tool holder 33, and thus the packaged dressing patch 17 is obtained.

[0052] In summary, the present invention realizes the automated production and packaging of the dressing patch. Through the setting of the easily tearable sealing part, the produced dressing patch has a better sterile effect and is easy to tear when in use.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A dressing patch production device, including a frame, characterized in that, The following are provided on the frame: A first pressing and die-cutting assembly for pressing and die-cutting the water-absorbing resin layer and the non-woven fabric into a plurality of composite sheets after pressing and then successively pressing the composite sheets onto the PU film. The first pressing and die-cutting assembly includes a first pressing tool holder and a sheet die-cutting and pressing tool holder; A second pressing and die-cutting assembly for die-cutting and windowing the foam tape and successively pressing the PU film with the composite sheet attached thereto, the die-cut foam tape, and the silicone gel together. After pressing, a composite tape is formed. The second pressing and die-cutting assembly includes a foam die-cutting tool holder and a second pressing tool holder; A PE film pressing assembly for folding the first PE film and the second PE film and pressing the folded first PE film, the folded second PE film, and the third PE film to the bottom of the composite tape. The PE film pressing assembly includes two hemming mechanisms and a PE film pressing tool holder. The third PE film is located between the first PE film and the second PE film; A die-cutting and packaging assembly for die-cutting the composite tape into sheet-shaped dressing patches and packaging the dressing patches. An easy-tear sealing portion is formed at the bottom of the die-cut dressing patches.

2. The dressing patch production equipment according to claim 1, characterized in that, The easy-tear sealing portion includes an intermediate sealing portion, two side sealing portions, and two easy-tear joint sealing portions. The intermediate sealing portion is composed of the middle part of the third PE film. The two side sealing portions are respectively composed of the first PE film or the second PE film. After folding, the first PE film and the second PE film both form a hem that turns outward on the inner side. Each easy-tear joint sealing portion is composed of a hem and the side of the corresponding third PE film.

3. The dressing patch production equipment according to claim 1, characterized in that, A sheet die-cutting roller and a sheet die-cutting bottom roller for die-cutting the non-woven fabric and the water-absorbing resin layer are provided on the sheet die-cutting and pressing tool holder. A PU film pressing roller is provided downstream of the sheet die-cutting bottom roller. A sheet driving bottom roller is provided downstream of the PU film pressing roller. The sheet driving bottom roller, the PU film pressing roller, the sheet die-cutting bottom roller, and the sheet die-cutting roller are sequentially drivingly connected.

4. The dressing patch production equipment according to claim 3, characterized in that The water-absorbing resin layer, the non-woven fabric, and the low-adhesion film pass through the sheet die-cutting and pressing tool holder between the sheet die-cutting roller and the sheet die-cutting bottom roller. After die-cutting and waste discharging, a row of the composite sheets is adhered to the low-adhesion film.

5. The dressing patch production equipment according to claim 4, characterized in that, After die-cutting and waste discharging, the low-adhesion film and the PU film simultaneously pass through the sheet die-cutting and pressing tool holder between the sheet die-cutting bottom roller and the PU film pressing roller, and the composite sheets are successively pressed onto the PU film.

6. The dressing patch production equipment according to claim 1, characterized in that, Each hemming mechanism includes a fixed seat fixedly installed on the frame. A sliding platform is slidably installed on the fixed seat. A pressing plate and a guiding plate are fixedly installed on the top surface of the sliding platform. A passing gap is provided between the pressing plate and the sliding platform. A hemming gap is provided between the guiding plate and the sliding platform. The hemming gap gradually decreases from one end to the other end.

7. The dressing patch production equipment according to claim 6, characterized in that, Two guiding columns are fixedly installed on the fixed seat. The sliding platform is slidably installed on the two guiding columns. A lead screw is rotatably installed on the fixed seat. A nut is threadedly installed on the lead screw. The nut is fixedly installed on the sliding platform. One end of the lead screw is equipped with an adjusting handwheel. The two guiding columns and the lead screw both extend along the width direction of the composite tape.

8. The dressing patch production equipment according to claim 1, characterized in that, The die-cutting and packaging assembly includes a contour die-cutting knife seat, a packaging mechanism, and a cutting knife seat that are sequentially installed on the machine frame along the production direction of the dressing patch. The contour die-cutting knife seat is arranged downstream of the second pressing knife seat.

9. The production process of the dressing patch production equipment according to any one of claims 1-8, characterized in that, Specifically, it includes the following steps: S1. Press the superabsorbent resin layer, the non-woven fabric, and the low-adhesion film: Through the first pressing knife seat, press the superabsorbent resin layer, the non-woven fabric, and the low-adhesion film together in sequence. S2. Die-cut the superabsorbent resin layer and the non-woven fabric: Through the sheet die-cutting and pressing knife seat, die-cut the pressed superabsorbent resin layer and non-woven fabric into a plurality of composite sheets. The low-adhesion film remains intact without being die-cut. After die-cutting and waste discharging, the composite sheets are attached to the low-adhesion film. S3. Transfer the composite sheets to the PU film: The low-adhesion film with the composite sheets attached and the PU film pass through the sheet die-cutting and pressing knife seat simultaneously. The composite sheets are attached to the PU film. After pressing, the low-adhesion film is peeled off. S4. Die-cut the foam tape: Through the foam die-cutting knife seat, a row of windows are die-cut out on the foam tape. S5. Press the PU film, the foam tape, and the silicone gel: Through the pressing knife seat, press the PU film with the composite sheets attached, the die-cut foam tape, and the silicone gel together in sequence. After pressing, the composite tape is obtained and the composite sheets are located in the corresponding windows. S6. Press three PE films and the composite tape: Through the two hemming mechanisms, fold the inner sides of the first PE film and the second PE film respectively to form a hem. Press the folded first PE film, the folded second PE film, and the third PE film to the bottom of the composite tape. After pressing, the first PE film and the second PE film are attached to both sides of the composite tape, the third PE film is attached to the middle of the composite tape, and both sides of the third PE film are respectively pressed against the two hems. S7. Package the dressing patch: Through the die-cutting and packaging assembly, die-cut the composite tape with the PE film pressed into sheet-shaped dressing patches and seal and package the dressing patches.

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