Production line for nursing pad with single absorption core

Abstract

The invention belongs to the technical field of nursing pads, and particularly relates to a single-absorption-core nursing pad production line which comprises a fixed base plate, and a conveying belt used for conveying materials needing to be laminated is arranged on the side face of the fixed base plate; a foundation connecting column is mounted on the fixed substrate, and a heating laminated device is arranged on the foundation connecting column; the heating lamination device comprises two retention square plates which are symmetrically installed on the two sides of a foundation connecting column; the first heating plate is located below the foundation connecting column; the retention transverse plates are positioned on the opposite surfaces of the two retention square plates; the retention transverse plate is provided with a double-action uniform heating assembly for uniformly heating the material; and an adsorption position adjusting unit is arranged on the position fixing square plate. According to the invention, the situation that an adhesive cannot be fully fused due to insufficient heating of partial area of a material can be avoided, so that the interlayer bonding strength is sufficient, the problems of layering, glue failure and the like of the nursing pad in subsequent use are avoided, the production quality and the use effect of the nursing pad are improved, and the limitation of a production line during production is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of nursing pads, in particular to a single-absorbent core nursing pad production line. Background Art

[0002] Nursing pads are sanitary products, among which single-absorbent core nursing pads refer to nursing pads that use a single-structured absorbent core in the absorption area to achieve liquid absorption and water-locking functions. When processing this type of nursing pad on the production line, a laminating machine is required to tightly compound different material layers through high temperature, high pressure or bonding technology to form a structurally stable and functionally coordinated whole, thereby ensuring that the layers of material in the nursing pad will not separate.

[0003] The laminating machines on existing production lines usually use a hot pressing process to laminate nursing pads, but in actual use it is difficult to ensure that the hot plate heats the materials evenly, which will lead to insufficient heating in some areas, making it impossible for the adhesive between the materials to fully melt, and thus resulting in insufficient interlayer bonding strength. This will cause the nursing pads to be prone to delamination, debonding and other problems in subsequent use, thereby reducing the production quality and use effect of the nursing pads, and at the same time making the production line more limited in use. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a single absorbent core nursing pad production line, which effectively solves the problems in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a single absorbent core nursing pad production line, comprising a fixed base plate, a conveyor belt for conveying materials to be laminated being provided on its side; a base connecting column mounted on the fixed base plate and positioned above the conveyor belt, the base connecting column being provided with a heating laminating device for laminating the materials to form the nursing pads; the heating laminating device comprising: Retention square plate; two said retention square plates are symmetrically installed on both sides of the foundation connection column; a first heating plate, which is located below the foundation connecting column; A retaining transverse plate, which is located on the opposite sides of the two retaining square plates; The retaining horizontal plate is provided with a double-action uniform heating component for uniformly heating the material, and the double-action uniform heating component includes: A driving shaft is installed on a side of the retaining cross plate away from the conveyor belt; The retaining square plate is also provided with an adsorption and positioning unit, which is used to adjust the position of the material on the conveyor belt to the moving path when the first heating plate moves downward; the adsorption and positioning unit includes: The second heating plate is located on the opposite side of the two retaining square plates.

[0006] Preferably, the heating laminate device further comprises: Two limiting sliding grooves are respectively provided on opposite sides of the two retaining square plates; A positioning slide column is installed in one of the limiting slide grooves; the positioning slide column is connected to the retaining cross plate, and the two are slidably matched; A positioning screw rod is connected to another limiting slide groove; the positioning screw rod is threadedly connected to the retaining cross plate; A retaining cylinder is connected to the top of the retaining horizontal plate, and the two are slidably matched; the end of the retaining cylinder close to the conveyor belt is fixedly connected to the side of the first heating plate away from the conveyor belt; A retaining spring is sleeved on the retaining cylinder; one end of the retaining spring is fixedly connected to the retaining horizontal plate, and the other end is fixedly connected to the first heating plate; S-shaped heating tubes are installed in both the first heating plate and the second heating plate.

[0007] Preferably, the heating laminate device further comprises: A T-shaped square plate, which is installed on the side of the retaining horizontal plate away from the retaining square plate; Retention rack; two retention racks are respectively located on both sides of the T-shaped square plate; the tooth grooves of the two retention racks face opposite to each other; a cavity is provided on the side of the retention rack close to the T-shaped square plate, and an auxiliary column is fixedly installed in the cavity; the two sides of the T-shaped square plate are respectively located in the cavities of the two retention racks and are slidably arranged; the auxiliary column passes through the T-shaped square plate and is connected, and the two are slidably matched; An auxiliary spring is sleeved on the auxiliary column; one end of the auxiliary spring is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the T-shaped square plate; A first gear, which is mounted on the retaining square plate and meshed with the retaining rack; A first pulley is connected to the first gear.

[0008] Preferably, the adsorption and positioning unit further includes: The gas storage box is located on opposite sides of the two retaining square plates; the initial position of the gas storage box is above the second heating plate; a driving shaft and a driven shaft are respectively installed on both sides of the gas storage box; A driving motor is mounted on the retaining square plate; an end of the driving shaft away from the air storage box passes through one of the retaining square plates and is connected to an output end of the driving motor; L-shaped rotating block; the driven rotating shaft passes through another retaining square plate and is fixedly connected to the L-shaped rotating block; The limiting swivel is installed on the fixing square plate where the L-shaped swivel block is located; the limiting swivel is rotatably matched with the L-shaped swivel block.

[0009] Preferably, the adsorption and positioning unit further includes: An air suction pump is installed on a side of the air storage box away from the second heating plate; A ventilation hose, one end of which is installed on the air pump, and the other end is installed on the side of the air storage box, and the two are connected to each other; Suction pipe; several suction pipes are equidistantly connected to the side of the air storage box away from the suction pump and are connected; the suction pipe is connected to the second heating plate, and the two are slidably matched; the initial positions of several of the suction pipes are facing the conveyor belt.

[0010] Preferably, the heating laminate device further comprises: An auxiliary base, which is fixedly mounted on the retaining square plate; A telescopic rod body is mounted on the auxiliary base; the end of the telescopic rod body close to the first heating plate is the telescopic end, and is equipped with a second gear; a second pulley connected to an end of the telescopic rod away from the second gear; One end of the first transmission belt is connected to the second pulley, and the other end is connected to the first pulley; the first transmission belt is in sliding cooperation with the first pulley and the second pulley.

[0011] Preferably, the adsorption and positioning unit further includes: A driving base is fixedly mounted on the side of the second heating plate; a driving cylinder is mounted on the driving base; The driving block is connected to the side of the gas storage box; the driving cylinder is connected to the driving block through and the two are slidably matched; A driving spring is sleeved on the driving cylinder; one end of the driving spring is fixedly connected to the driving block, and the other end is fixedly connected to the driving base; a driving rack is connected to the side of the driving base away from the driving cylinder; the teeth and grooves on the two driving racks on one side of the second heating plate are facing relative to each other; when the adsorption and positioning unit adjusts the position of the material on the conveyor belt to the moving path where the first heating plate moves downward, the position of the driving rack is synchronously changed, and at this time, the telescopic rod can be operated to move the second gear on its telescopic end to the side of the driving rack, and the two are meshed.

[0012] Preferably, the double-action heat uniformity component further comprises: A guide rack is installed on a side of the first heating plate close to the retaining horizontal plate; A guide base is mounted on the fixed horizontal plate; a guide shaft is mounted on the guide base, and a guide gear is mounted on the guide shaft; the guide gear is meshed with the guide rack; A driving bevel gear connected to an end of the guide shaft away from the guide base; A driven base is mounted on the fixed horizontal plate; a rotating shaft is mounted on the driven base, one end of which is connected to the third pulley and the other end is connected to the driven bevel gear; the driven bevel gear is meshed with the driving bevel gear; The fourth pulley is mounted on the driving shaft.

[0013] Preferably, the double-action heat uniformity component further comprises: a second transmission belt, one end of which is connected to the fourth pulley and the other end of which is connected to the third pulley; the second transmission belt is in sliding engagement with the fourth pulley and the third pulley; A rotating disc is mounted on the end of the driving shaft away from the retaining horizontal plate; A rotating slide connected to the edge of the rotating disc away from the driving shaft; A rectangular horizontal block is on the same side as the rotating slide; a rectangular sliding groove is provided on the side of the rectangular horizontal block close to the rotating disc; the rectangular sliding groove is in sliding engagement with the rotating slide; Guide square pillars; two guide square pillars are symmetrically connected to the side surfaces of the rectangular horizontal block; The active base is installed on the fixed horizontal plate; the guide square column is connected to the active base through and the two are slidably matched.

[0014] Preferably, the double-action heat uniformity component further comprises: a heating roller located on a side of the first heating plate away from the conveyor belt and located in a moving path of the heating roller; Linkage square seat; the heating roller is connected to the linkage square seat; two pressure cylinders are symmetrically provided on one side of the linkage square seat away from the first heating plate; Pressure horizontal plate, two pressure cylinders are connected through the pressure horizontal plate, and the two are slidably matched; A pressure spring is sleeved on the pressure cylinder; one end of the pressure spring is fixedly connected to the linkage square seat, and the other end is connected to a pressure limit plate; the pressure limit plate is connected to the end of the pressure cylinder away from the linkage square seat; The bent square rod has one end connected to the side of the rectangular horizontal block away from the guide square column, and the other end connected to the pressure horizontal plate.

[0015] From the above, it can be seen that the single absorbent core nursing pad production line provided by the present invention has the effect of uniformly heating the material during lamination, thereby avoiding insufficient heating of some areas of the material, which leads to the adhesive between the materials not being able to fully melt and resulting in insufficient interlayer bonding strength, and further avoids the laminated materials, that is, the produced nursing pads, from being prone to delamination, debonding and other problems in subsequent use, thereby improving the production quality and use effect of the nursing pads, and reducing the limitations of the production line during production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached figure: Figure 1 This is one of the overall structural diagrams of the present invention; Figure 2 This is a schematic structural diagram of the first heating plate of the present invention; Figure 3 This is a cross-sectional view of the gas storage box of the present invention; Figure 4 This is a schematic structural diagram of the heating roller of the present invention; Figure 5 This is the second schematic diagram of the overall structure of the present invention; Figure 6 This is a schematic diagram of the structure of the air intake pipe of the present invention; Figure 7 This is a schematic diagram of the structure of the rotary sliding post of the present invention; Figure 8 This is a schematic diagram of the L-shaped rotating block structure of the present invention; Figure 9 This is a schematic diagram of the telescopic rod structure of the present invention; Figure 10 is a cross-sectional view of the second heating plate of the present invention; Figure 11 This is a schematic diagram of the drive rack structure of the present invention; In the figure: 1. fixed base plate; 2. conveyor belt; 3. basic connecting column; 4. retaining square plate; 5. first heating plate; 6. retaining horizontal plate; 7. driving shaft; 8. second heating plate; 9. limiting slide; 10. positioning slide; 11. positioning screw rod; 12. retaining cylinder; 13. retaining spring; 14. S-shaped heating tube; 15. T-shaped square plate; 16. retaining rack; 17. auxiliary column; 18. auxiliary spring; 19. first gear; 20. first pulley; 21. gas storage box; 22. active shaft; 23. driven shaft; 24. driving motor; 25. L-shaped rotating block; 26. limiting swivel; 27. suction pump; 28. ventilation hose; 29. ​​suction pipe; 30. auxiliary base; 31. telescopic rod; 32. Second gear; 33. Second pulley; 34. First transmission belt; 35. Driving base; 36. Driving cylinder; 37. Driving block; 38. Driving spring; 39. Driving rack; 40. Guide rack; 41. Guide base; 42. Guide shaft; 43. Guide gear; 44. Active bevel gear; 45. Driven base; 46. Rotating shaft; 47. Third pulley; 48. Driven bevel gear; 49. Fourth pulley; 50. Second transmission belt; 51. Rotating disk; 52. Rotating slide; 53. Rectangular horizontal block; 54. Rectangular slide; 55. Guide square column; 56. Active base; 57. Heating roller; 58. Linkage square seat; 59. Pressure cylinder; 60. Pressure horizontal plate; 61. Pressure spring; 62. Bending square rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] Example, by Figures 1 to 11 The present invention provides a single absorbent core nursing pad production line, comprising a fixed base plate 1, a conveyor belt 2 for conveying materials to be laminated is provided on the side of the fixed base plate 1; a basic connecting column 3 is installed on the fixed base plate 1 and is located above the conveyor belt 2; the basic connecting column 3 is provided with a heating laminating device for laminating the materials to make the nursing pad; the heating laminating device includes: Retaining square plates 4, two of which are symmetrically installed on both sides of the foundation connecting column 3; A first heating plate 5, which is located below the foundation connecting column 3; A retaining transverse plate 6, which is located on opposite sides of the two retaining square plates 4; Two limiting sliding grooves 9 are respectively provided through the opposite surfaces of the two retaining square plates 4; A positioning slide 10 is installed in one of the limiting slide grooves 9; the positioning slide 10 is connected to the retaining cross plate 6, and the two are slidably matched; A positioning screw rod 11 is connected to another limiting slide groove 9; the positioning screw rod 11 is threadedly connected to the retaining cross plate 6; The retaining cylinder 12 is connected to the top of the retaining horizontal plate 6, and the two are slidably matched; the end of the retaining cylinder 12 close to the conveyor belt 2 is fixedly connected to the side of the first heating plate 5 away from the conveyor belt 2; A retaining spring 13 is sleeved on the retaining cylinder 12; one end of the retaining spring 13 is fixedly connected to the retaining horizontal plate 6, and the other end is fixedly connected to the first heating plate 5; an S-shaped heating tube 14 is installed in each of the first heating plate 5 and the second heating plate 8; T-shaped square plate 15, which is installed on the side of the retaining horizontal plate 6 away from the retaining square plate 4; Retention rack 16; two retention racks 16 are respectively located on both sides of the T-shaped square plate 15; the teeth of the two retention racks 16 face away from each other; the retention rack 16 is provided with a cavity on one side close to the T-shaped square plate 15, and an auxiliary column 17 is fixedly installed in the cavity; the two sides of the T-shaped square plate 15 are respectively located in the cavities of the two retention racks 16 and are slidably arranged; the auxiliary column 17 passes through the T-shaped square plate 15 and is connected, and the two are slidably fitted; An auxiliary spring 18 is sleeved on the auxiliary column 17; one end of the auxiliary spring 18 is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the T-shaped square plate 15; A first gear 19 is mounted on the retaining square plate 4 and meshes with the retaining rack 16; A first pulley 20 connected to the first gear 19; An auxiliary base 30, which is fixedly mounted on the retaining square plate 4; The telescopic rod 31 is mounted on the auxiliary base 30; the end of the telescopic rod 31 close to the first heating plate 5 is the telescopic end, and is equipped with a second gear 32; A second pulley 33 connected to an end of the telescopic rod 31 away from the second gear 32; A first transmission belt 34, one end of which is connected to the second pulley 33, and the other end of which is connected to the first pulley 20; the first transmission belt 34 is in sliding engagement with the first pulley 20 and the second pulley 33; After the material to be laminated is conveyed by the conveyor belt 2 to the bottom of the second heating plate 8, the adsorption and positioning unit is operated to flip the material above the conveyor belt 2 180 degrees and then to the bottom of the first heating plate 5. The control center then activates the built-in drive source (not shown in the figure) at the positioning screw 11. It is worth noting that the position of the drive rack 39 is also synchronously adjusted so that the tooth groove on it is located in the movement path of the second gear 32. When the control center receives a signal that the adsorption and positioning unit has successfully flipped the material to the bottom of the first heating plate 5, it synchronously operates the telescopic rod 31 to move the second gear 32 on its output end to the side of the drive rack 39, thereby actively controlling the meshing of the two. When the positioning screw 11 starts to rotate, the threaded fixed cross plate 6 is limited and moved downward at the positioning slide post 10, so that the fixed cross plate 6 can drive the first heating plate 5 to move downward under the action of the fixing cylinder 12 and the fixing spring 13; at the same time, when the fixed cross plate 6 moves downward, it will synchronously drive the T-shaped square plate 15 to move downward, so that under the action of the auxiliary column 17 and the auxiliary spring 18, it drives the fixed racks 16 on both sides to move downward, so that it can engage the first gear 19 to rotate, so that the first pulley 20 on it drives the second pulley 33 to rotate under the action of the first transmission belt 34, so that the telescopic rod body 31 on it drives the second gear 32 to rotate, because at this time the second gear 32 is in meshing state with the driving rack 39. , and the driving rack 39 and the retaining rack 16 are equivalent to being located on both sides of the second gear 32. When the retaining rack 16 moves downward, the second gear 32 will rotate under the transmission action and engage the driving rack 39 to move upward, thereby driving the driving rack 39 to move upward and the driving base 35 to move upward synchronously. The driving base 35 is installed on the second heating plate 8, which also drives the second heating plate 8 to move upward, so that the second heating plate 8 is limited and moved at the driving block 37 by the driving cylinder 36 on the driving base 35, so that the driving spring 38 is in a buffer state, so that the first heating plate 5 moves downward and the second heating plate 8 is simultaneously driven upward, so that the first heating plate 5 and the second heating plate 8 move relative to each other; When the second heating plate 8 moves to a length exceeding the length of the suction pipe 29, the material is adsorbed on the suction pipe 29, so that the material is no longer connected to the suction pipe 29, which causes the second heating plate 8 to lift the material and move it upward. When the first heating plate 5 and the second heating plate 8 move relative to each other and come into contact, the S-shaped heating tube 14 is activated to conduct heat to the first heating plate 5 and the second heating plate 8. The contact between the two allows the heat to act on the materials that are bonded to each other, so that the materials are in a heated state and pressed together, thereby completing the material lamination operation, allowing the adhesive between the materials to be fully melted, and completing the production of the nursing pad. When the first heating plate 5 and the second heating plate 8 squeeze the material against each other, it means that the first heating plate 5 and the second heating plate 8 can no longer move and are limited here. The continued rotation of the positioning screw 11 causes the retaining cross plate 6 to move within the upper limit of the retaining cylinder 12, so that the retaining spring 13 is in a buffering state, which is used to continuously apply pressure to the first heating plate 5. At the same time, when the retaining cross plate 6 continues to move downward, since the second heating plate 8 is limited here, the driving rack 39 thereon cannot continue to move, and the second gear 32 and the first gear 19 cannot continue to rotate, resulting in the retaining rack meshing with the first gear 19. If 16 cannot move further downward, the T-shaped square plate 15 on the downwardly moving retaining cross plate 6 will be limited in the cavity on the side of the retaining rack 16 and the auxiliary column 17, so that the auxiliary spring 18 is in a buffer state, thereby not hindering the continued movement of the retaining cross plate 6 to avoid movement obstacles; at the same time, the force of the T-shaped square plate 15 on the retaining rack 16 is always there, which prevents the second heating plate 8 from falling, so that the retaining cross plate 6 continues to move on the retaining cylinder 12, so as to continuously strengthen the pressure of the first heating plate 5 on the second heating plate 8, thereby preventing the material pressed between the two from being displaced or dislocated, and The contact strength between the first heating plate 5 and the second heating plate 8 is continuously increased, avoiding the insufficient contact strength between the two and the occurrence of gaps, which may cause insufficient heating or dead corners in some areas, so that the material can be heated evenly, avoiding the adhesive between the materials from being fully and evenly melted, resulting in insufficient bonding strength between the layers, thereby improving the production effect and quality of the nursing pad. At the same time, the above-mentioned hot pressing operation of the material is carried out by the relative movement of the first heating plate 5 and the second heating plate 8, which can be heated and pressurized from both sides at the same time, greatly shortening the time for the material to reach the hot pressing condition and improving production output; at the same time, the simultaneous heating on both sides can reduce the temperature gradient in the thickness direction of the material, avoiding the problem of "one side heating first and the other side heating later" when the single plate is heated, making the pressing quality more stable, improving the production quality of the nursing pad, and the pressing effect between the materials, thereby further reducing the limitations of the production line in the production of the nursing pad; the heating plate can heat the material evenly, avoiding the phenomenon that insufficient heating of some areas of the material causes the adhesive to be unable to fully melt, resulting in insufficient bonding strength between the layers, avoiding the problems of delamination and debonding of the nursing pad during use, thereby further improving the production quality and use effect of the nursing pad, and reducing the limitations of the production line in the production of the nursing pad.

[0020] In this embodiment, a double-action heat-uniform component is provided on the retaining horizontal plate 6, which is used to uniformly heat the material; the double-action heat-uniform component includes: A driving shaft 7 is mounted on the side of the retaining plate 6 away from the conveyor belt 2; A guide rack 40 is mounted on one side of the first heating plate 5 close to the retaining horizontal plate 6; A guide base 41 is mounted on the retaining horizontal plate 6; a guide shaft 42 is mounted on the guide base 41, and a guide gear 43 is mounted on the guide shaft 42; the guide gear 43 is meshed with the guide rack 40; A driving bevel gear 44 is connected to an end of the guide shaft 42 away from the guide base 41; A driven base 45 is mounted on the retaining horizontal plate 6; a rotating shaft 46 is mounted on the driven base 45, one end of which is connected to a third pulley 47, and the other end is connected to a driven bevel gear 48; the driven bevel gear 48 is meshed with the driving bevel gear 44; a fourth pulley 49 mounted on the driving shaft 7; The double-action heat distribution component also includes: A second transmission belt 50, one end of which is connected to the fourth pulley 49, and the other end is connected to the third pulley 47; the second transmission belt 50 is in sliding engagement with the fourth pulley 49 and the third pulley 47; The rotating disc 51 is mounted on the end of the driving shaft 7 away from the retaining horizontal plate 6; A rotating slide 52 connected to the edge of the rotating disc 51 away from the driving shaft 7; A rectangular horizontal block 53 is provided on the same side as the rotating slide 52; a rectangular chute 54 is provided on the side of the rectangular horizontal block 53 close to the rotating disc 51; the rectangular chute 54 is in sliding engagement with the rotating slide 52; The two guide square columns 55 are symmetrically connected to the side of the rectangular horizontal block 53; The active base 56 is mounted on the retaining horizontal plate 6; the guide square column 55 is connected to the active base 56 through and the two are slidably matched; The double-action heat distribution component also includes: a heating roller 57 , which is located on a side of the first heating plate 5 away from the conveyor belt 2 , and the side is located in a moving path of the heating roller 57 ; Linkage square seat 58; the heating roller 57 is connected to the linkage square seat 58; the linkage square seat 58 is symmetrically provided with two pressure cylinders 59 on one side away from the first heating plate 5; The pressure horizontal plate 60, the two pressure cylinders 59 are connected to the pressure horizontal plate 60, and the two are slidably matched; A pressure spring 61 is sleeved on the pressure cylinder 59; one end of the pressure spring 61 is fixedly connected to the linkage square seat 58, and the other end is connected to a pressure limit plate; the pressure limit plate is connected to the end of the pressure cylinder 59 away from the linkage square seat 58; A bent square rod 62, one end of which is connected to the side of the rectangular cross block 53 away from the guide square column 55, and the other end is connected to the pressure cross plate 60; When the second heating plate 8 and the first heating plate 5 are not in contact, the moving retaining cross plate 6 will drive the first heating plate 5 to move downward through the retaining cylinder 12 and the retaining spring 13, so that the distance between the first heating plate 5 and the retaining cross plate 6 does not change; when the second heating plate 8 and the first heating plate 5 are in contact, they are limited there, and the retaining cross plate 6 is limited and moved at the retaining cylinder 12 by continuing to rotate the positioning screw 11, so that the retaining spring 13 is in a buffering state, thereby reducing the distance between the first heating plate 5 and the retaining cross plate 6, and the guide gear 43 is installed on the retaining cross plate 6 through the guide shaft 42 and the guide base 41, and the guide rack 40 is installed on the first heating plate 5 When the distance between the first heating plate 5 and the retaining horizontal plate 6 changes, the guide rack 40 engages with the guide gear 43 to rotate, so that the guide gear 43 drives the fourth pulley 49 to rotate under the action of the active bevel gear 44, the driven bevel gear 48, the rotating shaft 46, the third pulley 47 and the second transmission belt 50, so that the driving shaft 7 on it drives the rotating disc 51 to rotate, so that the rotating slide post 52 on the rotating disc 51 reciprocates in the rectangular slide groove 54, and the rectangular slide groove 54 is provided on the rectangular horizontal block 53, so that it can be limited and moved at the active base 56 through the guide square column 55, so that the linkage square seat 58 can be driven to reciprocate under the action of the bent square rod 62;It is worth mentioning that when the distance between the retaining cross plate 6 and the first heating plate 5 becomes smaller, the heating roller 57 on the retaining cross plate 6 moves toward and contacts the first heating plate 5 that no longer moves, and the heating roller 57 is installed on the linkage square seat 58. The reciprocating movement of the linkage square seat 58 drives the heating roller 57 to move back and forth on the top of the first heating plate 5, so as to evenly apply pressure to the first heating plate 5, and also generate heat on the first heating plate 5, to avoid the uneven pressure exerted on the material lamination by the contact between the first heating plate 5 and the second heating plate 8, resulting in insufficient heating of some areas. At the same time, when the distance between the first heating plate 5 and the retaining cross plate 6 becomes smaller and smaller, since the heating roller 57 has contacted the first heating plate 5 and cannot move further, the bent square rod 62 that continues to move downward drives the pressure cross plate 60 to move downward, so that it is on the pressure cylinder 5 The limited movement at position 9 places the pressure spring 61 in a buffered state, causing the pressure applied by the heating roller 57 to the first heating plate 5 to continuously increase, thereby improving the contact strength between the first heating plate 5 and the second heating plate 8, thereby improving the lamination effect of the material. In addition, the heating roller 57 reciprocates on the first heating plate 5 to continuously apply pressure to the first heating plate 5, avoiding dead angles or insufficient strength when contacting the second heating plate 8, which affects the lamination effect. This allows the material to be heated evenly during lamination, avoiding insufficient heating in some areas of the material, which may cause the adhesive between the materials to not fully melt, resulting in insufficient interlayer bonding strength, and avoid the laminated material, i.e., the produced nursing pad, from being prone to delamination or debonding during subsequent use. This improves the production quality and use effect of the nursing pad, and reduces the limitations of the production line during production.

[0021] The retaining square plate 4 of this embodiment is further provided with an adsorption and positioning unit, which is used to adjust the position of the material on the conveyor belt 2 to the moving path when the first heating plate 5 moves downward; the adsorption and positioning unit includes: A second heating plate 8, which is located on the opposite side of the two retaining square plates 4; The gas storage box 21 is located on opposite sides of the two retaining square plates 4; the initial position of the gas storage box 21 is above the second heating plate 8; a driving shaft 22 and a driven shaft 23 are respectively installed on both sides of the gas storage box 21; The driving motor 24 is mounted on the retaining square plate 4; the end of the driving shaft 22 away from the air storage box 21 passes through one of the retaining square plates 4 and is connected to the output end of the driving motor 24; L-shaped rotating block 25; the driven rotating shaft 23 passes through another retaining square plate 4 and is fixedly connected to the L-shaped rotating block 25; A limiting swivel 26 is mounted on the retaining square plate 4 where the L-shaped swivel block 25 is located; the limiting swivel 26 is rotatably engaged with the L-shaped swivel block 25; An air suction pump 27 is installed on a side of the air storage box 21 away from the second heating plate 8; A ventilation hose 28, one end of which is mounted on the air pump 27, and the other end is mounted on the side of the air storage box 21, and the two are connected to each other; Suction pipe 29; Several suction pipes 29 are equidistantly connected to the side of the air storage box 21 away from the suction pump 27 and are connected; The suction pipe 29 is connected to the second heating plate 8, and the two are slidably matched; The initial positions of the several suction pipes 29 are all facing the conveyor belt 2; A driving base 35 is fixedly mounted on the side of the second heating plate 8; a driving cylinder 36 is mounted on the driving base 35; The driving block 37 is connected to the side of the air storage box 21; the driving cylinder 36 is connected to the driving block 37 through and the two are slidably matched; A drive spring 38 is sleeved on the drive cylinder 36; one end of the drive spring 38 is fixedly connected to the drive block 37, and the other end is fixedly connected to the drive base 35; a drive rack 39 is connected to the side of the drive base 35 away from the drive cylinder 36; the teeth and grooves on the two drive racks 39 on one side of the second heating plate 8 are oriented relative to each other; when the adsorption and positioning unit adjusts the position of the material on the conveyor belt 2 to the moving path where the first heating plate 5 moves downward, the position of the drive rack 39 is synchronously changed. At this time, the telescopic rod 31 is operated to move the second gear 32 on its telescopic end to the side of the drive rack 39, and the two are meshed. When the material to be laminated moves to the bottom of the second heating plate 8 through the conveyor belt 2, the material is now located under the plurality of suction pipes 29. At this time, the suction pump 27 is started so that the suction force generated by it acts on the air storage box 21 through the ventilation hose 28. The air storage box 21 evenly distributes the above suction force to the plurality of suction pipes 29, so that a strong suction force is generated at the output ends of the plurality of suction pipes 29, so that the material located at the output ends of the suction pipes 29 can be adsorbed thereon; when the material is adsorbed on the plurality of suction pipes 29, a sensor (not shown in the figure) can be provided to transmit a signal to the control center. At this time, the control center sends a start signal to the drive motor 24, so that the output end drives the active rotating shaft 22 to rotate, so that the air storage box 21 on it rotates, and the material is adsorbed on the plurality of suction pipes 29, which is installed on the air storage box 21, so that the air storage box 21 can synchronously drive the material to rotate when it rotates. , until the material is turned 180° and then stops, the position of the material worthy of being adsorbed by the several suction pipes 29 is adjusted to below the first heating plate 5 for the heated laminating device to perform hot pressing operation, thereby avoiding the lamination operation of the nursing pad being carried out on the conveyor belt 2, which affects its working efficiency, and at the same time avoids the lamination operation being carried out on the conveyor belt 2 itself, which causes it to be continuously subjected to strong pressure and damaged, thereby improving the service life of the conveyor belt 2, and making the use effect of the production line further improved; it is worth mentioning that when the gas storage box 21 rotates, the driven rotating shaft 23 on it will also rotate on the retaining square plate 4, so that the L-shaped rotating block 25 on the driven rotating shaft 23 is limited to rotate at the limiting swivel 26, so as to limit the rotation of the gas storage box 21, thereby avoiding the shaking during its rotation, which causes the position of the adsorbed material to deviate and reduce the lamination effect, thereby improving the production effect of the production line and the quality of the produced nursing pad; It is worth mentioning that several suction pipes 29 are arranged on the second heating plate 8, that is to say, when the second heating plate 8 moves, it is limited and moved at the suction pipe 29, so that the two are limited to each other. At the same time, the second heating plate 8 is also limited and moved at the driving block 37 by the driving cylinder 36, so as to avoid the second heating plate 8 from being dislocated or shaking when moving, affecting the docking accuracy with the first heating plate 5 and causing the lamination effect to be reduced, thereby reducing the limitations during lamination; at the same time, on the contrary, the position of the suction pipe 29 is also limited, so as to avoid the use position of several suction pipes 29 from being offset, which causes the adsorbed material to be dislocated or shaken, thereby improving the adsorption strength and effect of the suction pipe 29 on the material; at the same time, because several suction pipes 29 are on the second heating plate 8, that is, when the second heating plate 8 is heated, the heat generated will also be conducted to the suction pipe 29, so that the contact area between the second heating plate 8 and the material continuously generates heat, that is, the gas of the adsorbed material is eliminated The moisture in and around the material reduces the humidity of the material itself. In some cases where the ambient humidity is high or the temperature in the suction pipe 29 is low, the water vapor in the air will condense into water droplets on the surface of the material, affecting the adsorption effect. The heating of the suction pipe 29 can increase the temperature of the material and the surrounding air, prevent the occurrence of condensation, ensure the normal progress of the adsorption process, and avoid the humidity of the laminated material required for the production of the nursing pad being too high to be adsorbed on the suction pipe 29 for position change, thereby reducing the limitations of the production line when in use; at the same time, heating the material can also evaporate the moisture on the material and reduce the water content of the material. The dry material is not only easy to adsorb, but also reduces the heating time of the material during the later lamination, avoiding the need to spend too much time drying the material before lamination, and further avoiding the material being in a relatively wet state for lamination, resulting in insufficient interlayer bonding strength, thereby shortening the preheating time of the material and further improving the production effect and quality of the nursing pad.

[0022] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0023] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A single absorbent core nursing pad production line, characterized by: The invention comprises a fixed base plate, a conveyor belt for conveying materials to be laminated is provided on the side of the fixed base plate; a basic connecting column is installed on the fixed base plate and is located above the conveyor belt; a heating laminating device for laminating materials to make nursing pads is provided on the basic connecting column; the heating laminating device comprises: Retention square plate; two said retention square plates are symmetrically installed on both sides of the foundation connection column; a first heating plate, which is located below the foundation connecting column; A retaining transverse plate, which is located on the opposite sides of the two retaining square plates; The retaining horizontal plate is provided with a double-action uniform heating component for uniformly heating the material, and the double-action uniform heating component includes: A driving shaft is installed on a side of the retaining cross plate away from the conveyor belt; The retaining square plate is provided with an adsorption and positioning unit, which is used to adjust the position of the material on the conveyor belt to the moving path when the first heating plate moves downward; the adsorption and positioning unit includes: The second heating plate is located on the opposite side of the two retaining square plates.

2. A single absorbent core nursing pad production line according to claim 1, characterized in that: The heating laminate device further comprises: Two limiting sliding grooves are respectively provided on opposite sides of the two retaining square plates; A positioning slide column is installed in one of the limiting slide grooves; the positioning slide column is connected to the retaining cross plate, and the two are slidably matched; A positioning screw rod is connected to another limiting slide groove; the positioning screw rod is threadedly connected to the retaining cross plate; A retaining cylinder is connected to the top of the retaining horizontal plate, and the two are slidably matched; the end of the retaining cylinder close to the conveyor belt is fixedly connected to the side of the first heating plate away from the conveyor belt; A retaining spring is sleeved on the retaining cylinder; one end of the retaining spring is fixedly connected to the retaining horizontal plate, and the other end is fixedly connected to the first heating plate; S-shaped heating tubes are installed in both the first heating plate and the second heating plate.

3. The single absorbent core nursing pad production line according to claim 2, characterized in that: The heating laminate device further comprises: A T-shaped square plate, which is installed on the side of the retaining horizontal plate away from the retaining square plate; Retention rack; two retention racks are respectively located on both sides of the T-shaped square plate; the tooth grooves of the two retention racks face opposite to each other; a cavity is provided on the side of the retention rack close to the T-shaped square plate, and an auxiliary column is fixedly installed in the cavity; the two sides of the T-shaped square plate are respectively located in the cavities of the two retention racks and are slidably arranged; the auxiliary column passes through the T-shaped square plate and is connected, and the two are slidably matched; An auxiliary spring is sleeved on the auxiliary column; one end of the auxiliary spring is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the T-shaped square plate; A first gear, which is mounted on the retaining square plate and meshed with the retaining rack; A first pulley is connected to the first gear.

4. The single absorbent core nursing pad production line according to claim 1, characterized in that: The adsorption and positioning unit further includes: The gas storage box is located on opposite sides of the two retaining square plates; the initial position of the gas storage box is above the second heating plate; a driving shaft and a driven shaft are respectively installed on both sides of the gas storage box; A driving motor is mounted on the retaining square plate; an end of the driving shaft away from the air storage box passes through one of the retaining square plates and is connected to an output end of the driving motor; L-shaped rotating block; the driven rotating shaft passes through another retaining square plate and is fixedly connected to the L-shaped rotating block; The limiting swivel is installed on the fixing square plate where the L-shaped swivel block is located; the limiting swivel is rotatably matched with the L-shaped swivel block.

5. The single absorbent core nursing pad production line according to claim 4, characterized in that: The adsorption and positioning unit further includes: An air suction pump is installed on a side of the air storage box away from the second heating plate; A ventilation hose, one end of which is installed on the air pump, and the other end is installed on the side of the air storage box, and the two are connected to each other; Suction pipe; several suction pipes are equidistantly connected to the side of the air storage box away from the suction pump and are connected; the suction pipe is connected to the second heating plate, and the two are slidably matched; the initial positions of several of the suction pipes are facing the conveyor belt.

6. The single absorbent core nursing pad production line according to claim 3, characterized in that: The heating laminate device further comprises: An auxiliary base, which is fixedly mounted on the retaining square plate; A telescopic rod body is mounted on the auxiliary base; the end of the telescopic rod body close to the first heating plate is the telescopic end, and is equipped with a second gear; a second pulley connected to an end of the telescopic rod away from the second gear; One end of the first transmission belt is connected to the second pulley, and the other end is connected to the first pulley; the first transmission belt is in sliding cooperation with the first pulley and the second pulley.

7. The single absorbent core nursing pad production line according to claim 5, characterized in that: The adsorption and positioning unit further includes: A driving base is fixedly mounted on the side of the second heating plate; a driving cylinder is mounted on the driving base; The driving block is connected to the side of the gas storage box; the driving cylinder is connected to the driving block through and the two are slidably matched; A driving spring is sleeved on the driving cylinder; one end of the driving spring is fixedly connected to the driving block, and the other end is fixedly connected to the driving base; a driving rack is connected to the side of the driving base away from the driving cylinder; the teeth and grooves on the two driving racks on one side of the second heating plate are facing relative to each other; when the adsorption and positioning unit adjusts the position of the material on the conveyor belt to the moving path where the first heating plate moves downward, the position of the driving rack is synchronously changed, and at this time, the telescopic rod can be operated to move the second gear on its telescopic end to the side of the driving rack, and the two are meshed.

8. The single absorbent core nursing pad production line according to claim 1, characterized in that: The double-action heat distribution component also includes: A guide rack is installed on a side of the first heating plate close to the retaining horizontal plate; A guide base is mounted on the fixed horizontal plate; a guide shaft is mounted on the guide base, and a guide gear is mounted on the guide shaft; the guide gear is meshed with the guide rack; A driving bevel gear connected to an end of the guide shaft away from the guide base; A driven base is mounted on the fixed horizontal plate; a rotating shaft is mounted on the driven base, one end of which is connected to the third pulley and the other end is connected to the driven bevel gear; the driven bevel gear is meshed with the driving bevel gear; The fourth pulley is mounted on the driving shaft.

9. The single absorbent core nursing pad production line according to claim 8, characterized in that: The double-action heat distribution component also includes: a second transmission belt, one end of which is connected to the fourth pulley and the other end of which is connected to the third pulley; the second transmission belt is in sliding engagement with the fourth pulley and the third pulley; A rotating disc is mounted on the end of the driving shaft away from the retaining horizontal plate; A rotating slide connected to the edge of the rotating disc away from the driving shaft; A rectangular horizontal block is on the same side as the rotating slide; a rectangular sliding groove is provided on the side of the rectangular horizontal block close to the rotating disc; the rectangular sliding groove is in sliding engagement with the rotating slide; Guide square pillars; two guide square pillars are symmetrically connected to the side surfaces of the rectangular horizontal block; The active base is installed on the fixed horizontal plate; the guide square column is connected to the active base through and the two are slidably matched.

10. The single absorbent core nursing pad production line according to claim 9, characterized in that: The double-action heat distribution component also includes: a heating roller located on a side of the first heating plate away from the conveyor belt and located in a moving path of the heating roller; Linkage square seat; the heating roller is connected to the linkage square seat; two pressure cylinders are symmetrically provided on one side of the linkage square seat away from the first heating plate; Pressure horizontal plate, two pressure cylinders are connected through the pressure horizontal plate, and the two are slidably matched; A pressure spring is sleeved on the pressure cylinder; one end of the pressure spring is fixedly connected to the linkage square seat, and the other end is connected to a pressure limit plate; the pressure limit plate is connected to the end of the pressure cylinder away from the linkage square seat; The bent square rod has one end connected to the side of the rectangular horizontal block away from the guide square column, and the other end connected to the pressure horizontal plate.

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