A single absorbent core body care pad production line

Abstract

The application belongs to the technical field of nursing pads, and particularly relates to a single-absorption-core-body nursing pad production line, which comprises a fixed base plate, the side surface of which is provided with a conveying belt for conveying materials that need to be laminated; the fixed base plate is provided with a base connecting column, and the base connecting column is provided with a heating laminating device; the heating laminating device comprises: two fixing square plates that are symmetrically arranged on the two sides of the base connecting column; a first heating plate that is arranged below the base connecting column; a fixing horizontal plate that is arranged on the opposite surfaces of the two fixing square plates; a complex heating assembly that is arranged on the fixing horizontal plate and is used for uniformly heating the materials; and an adsorption positioning unit that is arranged on the fixing square plate. The application can avoid the problem that the insufficient heating of the partial area of the materials leads to the insufficient melting of the adhesive, so that the interlayer adhesive strength is sufficient, the problems such as layering and glue opening of the nursing pad in subsequent use are avoided, the production quality and use effect of the nursing pad are improved, and the limitation of the production line in production is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of nursing pads, and particularly relates to a single-absorption-core-body nursing pad production line. BACKGROUND

[0002] Nursing pads belong to sanitary products, and a single-absorption-core-body nursing pad refers to a nursing pad using a single-structure absorption core body to realize liquid absorption and water locking function; when this kind of nursing pad is processed on a production line, a laminator is needed to tightly combine different material layers through high-temperature, high-pressure or adhesive process, so as to form a whole body with stable structure and collaborative function, thereby ensuring that the materials of the nursing pad will not be separated.

[0003] The laminator of the existing production line usually adopts a hot-pressing process to perform laminating operation on the nursing pad, but it is difficult to ensure uniform heating of the materials by the hot plate in actual use, which will lead to insufficient heating in some areas, so that the adhesive between the materials cannot be fully melted, and then the interlayer adhesive strength is insufficient, which will lead to the problems of delamination and glue opening of the nursing pad in subsequent use, thereby reducing the production quality and use effect of the nursing pad, and meanwhile, the production line has strong limitations in use. SUMMARY

[0004] In view of the above problems, the single-absorption-core-body nursing pad production line is provided to overcome the defects of the prior art.

[0005] To achieve the above purpose, the application provides the following technical scheme: a single-absorption-core-body nursing pad production line, comprising a fixed base plate, the side surface of which is provided with a conveying belt for conveying materials needing to be laminated; the fixed base plate is provided with a base connecting column above the conveying belt, and the base connecting column is provided with a heating laminating device for laminating the materials to make nursing pads; the heating laminating device comprises:

[0006] a retaining square plate; two retaining square plates are symmetrically installed on both sides of the base connecting column;

[0007] a first heating plate located below the base connecting column;

[0008] a retaining horizontal plate located on the opposite side of the two retaining square plates;

[0009] The retaining horizontal plate is provided with a complex uniform heating assembly for uniformly heating the materials, and the complex uniform heating assembly comprises:

[0010] a driving shaft installed on the side of the retaining horizontal plate away from the conveying belt;

[0011] The fixing square plate is further provided with an adsorption position adjusting unit for adjusting the position of the material on the conveying belt to the moving path when the first heating plate moves downward.

[0012] A second heating plate is located on the opposite side of the two fixing square plates.

[0013] Preferably, the heating laminating device further comprises:

[0014] Two limiting sliding grooves are respectively arranged through the opposite sides of the two fixing square plates.

[0015] A positioning sliding column is installed in one of the limiting sliding grooves; the positioning sliding column is connected to the fixing horizontal plate and the two are in sliding fit.

[0016] A positioning lead screw is connected to the other limiting sliding groove; the positioning lead screw is threadedly connected to the fixing horizontal plate.

[0017] A fixing cylinder is connected to the top of the fixing horizontal plate and the two are in sliding fit; one end of the fixing cylinder close to the conveying belt is fixedly connected to the side of the first heating plate away from the conveying belt.

[0018] A fixing spring is sleeved on the fixing cylinder; one end of the fixing spring is fixedly connected to the fixing horizontal plate and the other end is fixedly connected to the first heating plate; the first heating plate and the second heating plate are both provided with an S-shaped heating tube.

[0019] Preferably, the heating laminating device further comprises:

[0020] A T-shaped square plate is installed on the side of the fixing horizontal plate away from the fixing square plate.

[0021] Two fixing racks are respectively located on the two sides of the T-shaped square plate; the tooth grooves of the two fixing racks face away from each other; the side of the fixing rack close to the T-shaped square plate is provided with a cavity, and an auxiliary column is fixedly installed in the cavity; the two sides of the T-shaped square plate are slidingly arranged in the cavities of the two fixing racks; the auxiliary column is connected through the T-shaped square plate and the two are in sliding fit.

[0022] 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.

[0023] A first gear is installed on the fixing square plate and is in meshing connection with the fixing rack.

[0024] A first pulley is connected to the first gear.

[0025] Preferably, the adsorption position adjusting unit further comprises:

[0026] A gas storage box is located on the opposite side of the two retaining square plates; the initial position of the gas storage box is above the second heating plate; the two sides of the gas storage box are respectively provided with a driving shaft and a driven shaft;

[0027] A driving motor is installed on the retaining square plate; the end of the driving shaft away from the gas storage box penetrates through one of the retaining square plates and is connected with the output end of the driving motor;

[0028] An L-shaped rotating block; the driven shaft penetrates through the other retaining square plate and is fixedly connected with the L-shaped rotating block;

[0029] A limiting rotating ring is installed on the retaining square plate where the L-shaped rotating block is located; the limiting rotating ring is rotationally matched with the L-shaped rotating block.

[0030] Preferably, the adsorption positioning unit further comprises:

[0031] An air suction pump is installed on the side of the gas storage box away from the second heating plate;

[0032] An air hose is installed on the air suction pump at one end and on the side of the gas storage box at the other end and is arranged in communication with each other;

[0033] Air suction pipes are equidistantly connected on the side of the gas storage box away from the air suction pump and are in communication; the air suction pipes penetrate through the second heating plate and are in sliding fit; the initial positions of the air suction pipes are all directed to the conveying belt.

[0034] Preferably, the heating laminated device further comprises:

[0035] An auxiliary base is fixedly installed on the retaining square plate;

[0036] A telescopic rod body is installed on the auxiliary base; the end of the telescopic rod body close to the first heating plate is a telescopic end and is provided with a second gear;

[0037] A second pulley is connected to the end of the telescopic rod body away from the second gear;

[0038] A first transmission belt is connected at one end to the second pulley and at the other end to the first pulley; the first transmission belt is in sliding fit with the first pulley and the second pulley.

[0039] Preferably, the adsorption positioning unit further comprises:

[0040] A driving base is fixedly installed on the side of the second heating plate; a driving cylinder is installed on the driving base;

[0041] A driving square block is connected to the side of the gas storage box; the driving cylinder penetrates through the driving square block and is in sliding fit with the driving square block;

[0042] A driving spring is sleeved on the driving cylinder, one end of the driving spring is fixedly connected with the driving block, and the other end is fixedly connected with the driving base, the driving base is connected with a driving rack on the side away from the driving cylinder, the tooth slots on the two driving racks on the side of the second heating plate are oppositely oriented, when the adsorption positioning unit adjusts the position of the material on the conveying belt to the moving path under the first heating plate, the positions of the driving racks are synchronously exchanged, at this time, the second gear on the telescopic end of the telescopic rod body is driven to move beside the driving rack, and the two are meshed.

[0043] Preferably, the complex uniform heating assembly further comprises:

[0044] A guide rack is installed on the side of the first heating plate close to the retaining horizontal plate;

[0045] A guide base is installed on the retaining horizontal plate, a guide rotating shaft is further installed on the guide base, and a guide gear is installed on the guide rotating shaft; the guide gear is in meshing connection with the guide rack;

[0046] A driving bevel gear is connected to the end of the guide rotating shaft away from the guide base;

[0047] A driven base is installed on the retaining horizontal plate, a rotating shaft is installed on the driven base, one end of the rotating shaft is connected with a third pulley, and the other end is connected with a driven bevel gear; the driven bevel gear is in meshing connection with the driving bevel gear;

[0048] A fourth pulley is installed on the driving rotating shaft.

[0049] Preferably, the complex uniform heating assembly further comprises:

[0050] A second transmission belt is connected with the fourth pulley at one end and connected with the third pulley at the other end; the second transmission belt is in sliding connection with the fourth pulley and the third pulley;

[0051] A rotating disc is installed on the end of the driving rotating shaft away from the retaining horizontal plate;

[0052] A rotating slide column is connected to the edge of the rotating disc away from the driving rotating shaft;

[0053] A rectangular horizontal block is on the same side of the rotating slide column; a rectangular sliding groove is arranged on the side of the rectangular horizontal block close to the rotating disc; the rectangular sliding groove is in sliding connection with the rotating slide column;

[0054] Two guide square columns are symmetrically connected to the side surface of the rectangular horizontal block;

[0055] A driving base is installed on the retaining horizontal plate; the guide square columns are connected to the driving base in a penetrating manner and in sliding connection.

[0056] Preferably, the complex uniform heating assembly further comprises:

[0057] A heating roller is located at the side of the first heating plate away from the conveying belt, and the side is located at the moving path of the heating roller;

[0058] A linkage square base, the heating roller is connected in the linkage square base, two pressure cylinders are symmetrically arranged at the side of the linkage square base away from the first heating plate;

[0059] A pressure horizontal plate, the two pressure cylinders are connected on the pressure horizontal plate and are in sliding fit;

[0060] A pressure spring is sleeved on the pressure cylinder, one end of the pressure spring is fixedly connected with the linkage square base, the other end is connected with a pressure limiting plate, and the pressure limiting plate is connected to the end of the pressure cylinder away from the linkage square base;

[0061] A bending square rod is connected at one end with the rectangular horizontal block away from the side of the guide square column, and the other end is connected with the pressure horizontal plate.

[0062] As can be seen from the above, the single-absorbing core nursing pad production line provided by the application has the effect of uniformly heating the material during lamination, so that the insufficient heating of the material in some areas can be avoided, the adhesive between the materials cannot be fully melted to cause insufficient interlayer adhesion strength, further avoiding the problem that the laminated material, that is, the produced nursing pad, is prone to delamination and glue opening during subsequent use, thereby improving the production quality and use effect of the nursing pad, and reducing the limitations of the production line during production. BRIEF DESCRIPTION OF DRAWINGS

[0063] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, and are used together with embodiments of the application to explain the application, and do not constitute a limitation on the application.

[0064] In the drawings:

[0065] Figure 1 It is one of the overall structure schematic diagrams of the application;

[0066] Figure 2 It is a first heating plate structure schematic diagram of the application;

[0067] Figure 3 It is a gas storage tank cross-sectional view of the application;

[0068] Figure 4 It is a heating roller structure schematic diagram of the application;

[0069] Figure 5 It is the second overall structure schematic diagram of the application;

[0070] Figure 6 It is a gas suction pipe structure schematic diagram of the application;

[0071] Figure 7 For the rotating slide structure of the present application schematic diagram;

[0072] Figure 8 For the L-shaped rotating block structure of the present application schematic diagram;

[0073] Figure 9 For the telescopic rod body structure of the present application schematic diagram;

[0074] Figure 10 For the second heating plate of the present application sectional view;

[0075] Figure 11 For the driving rack structure of the present application schematic diagram;

[0076] In the figure: 1, fixed base plate; 2, conveyor belt; 3, base connecting column; 4, retaining square plate; 5, first heating plate; 6, retaining cross plate; 7, drive shaft; 8, second heating plate; 9, limit sliding groove; 10, positioning slide column; 11, positioning lead screw; 12, retaining cylinder; 13, retaining spring; 14, S-shaped heating pipe; 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, driving shaft; 23, driven shaft; 24, driving motor; 25, L-shaped rotating block; 26, limit rotating ring; 27, air suction pump; 28, air hose; 29, air suction pipe; 30, auxiliary base; 31, telescopic rod body; 32, second gear; 33, second pulley; 34, first transmission belt; 35, driving base; 36, driving cylinder; 37, driving square; 38, driving spring; 39, driving rack; 40, guide rack; 41, guide base; 42, guide shaft; 43, guide gear; 44, driving bevel gear; 45, driven base; 46, rotating shaft; 47, third pulley; 48, driven bevel gear; 49, fourth pulley; 50, second transmission belt; 51, rotating disc; 52, rotating slide column; 53, rectangular cross block; 54, rectangular sliding groove; 55, guide square column; 56, driving base; 57, heating roller; 58, linkage square base; 59, pressure cylinder; 60, pressure cross plate; 61, pressure spring; 62, bent square rod. DETAILED DESCRIPTION

[0077] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0078] Embodiment, by Figures 1 to 11The present application provides a single-absorbing core nursing pad production line, comprising a fixed base plate 1, the side of which is provided with a conveying belt 2 for conveying materials to be laminated; a base connecting column 3 is installed above the conveying belt 2 on the fixed base plate 1, and a heating laminating device for laminating the materials to make the nursing pad is arranged on the base connecting column 3; the heating laminating device comprises:

[0079] retention square plates 4, which are symmetrically installed on both sides of the base connecting column 3;

[0080] a first heating plate 5, which is located below the base connecting column 3;

[0081] retention horizontal plates 6, which are located on the opposite sides of the two retention square plates 4;

[0082] two limiting sliding grooves 9, which are respectively arranged through the opposite sides of the two retention square plates 4;

[0083] a positioning sliding column 10, which is installed in one of the limiting sliding grooves 9; the positioning sliding column 10 is connected through and slidably fitted with the retention horizontal plate 6;

[0084] a positioning lead screw 11, which is connected in the other limiting sliding groove 9; the positioning lead screw 11 is threadedly connected with the retention horizontal plate 6;

[0085] a retention cylinder 12, which is connected through and slidably fitted with the top of the retention horizontal plate 6; one end of the retention cylinder 12 close to the conveying belt 2 is fixedly connected with the side of the first heating plate 5 away from the conveying belt 2;

[0086] a retention spring 13, which is sleeved on the retention cylinder 12; one end of the retention spring 13 is fixedly connected with the retention horizontal plate 6, and the other end is fixedly connected with the first heating plate 5; S-shaped heating pipes 14 are installed in the first heating plate 5 and the second heating plate 8;

[0087] a T-shaped square plate 15, which is installed on the side of the retention horizontal plate 6 away from the retention square plate 4;

[0088] retention racks 16, which are respectively located on the two sides of the T-shaped square plate 15; the tooth grooves of the two retention racks 16 face away from each other; the side of the retention rack 16 close to the T-shaped square plate 15 is provided with a cavity, and an auxiliary column body 17 is fixedly installed in the cavity; the two sides of the T-shaped square plate 15 are slidably arranged in the cavities of the two retention racks 16; the auxiliary column body 17 is connected through and slidably fitted with the T-shaped square plate 15;

[0089] an auxiliary spring 18, which is sleeved on the auxiliary column body 17; one end of the auxiliary spring 18 is fixedly connected with the inner wall of the cavity, and the other end is fixedly connected with the T-shaped square plate 15;

[0090] A first gear 19 is installed on the retaining square plate 4 and is in meshing connection with the retaining rack 16;

[0091] A first pulley 20 is connected to the first gear 19;

[0092] An auxiliary base 30 is fixedly installed on the retaining square plate 4;

[0093] A telescopic rod body 31 is installed on the auxiliary base 30; one end of the telescopic rod body 31 close to the first heating plate 5 is a telescopic end and is installed with a second gear 32;

[0094] A second pulley 33 is connected to one end of the telescopic rod body 31 far away from the second gear 32;

[0095] A first transmission belt 34 is connected at one end to the second pulley 33 and at the other end to the first pulley 20; the first transmission belt 34 is in sliding cooperation with the first pulley 20 and the second pulley 33;

[0096] After the material to be laminated is conveyed by the conveying belt 2 to below the second heating plate 8, the material is turned to 180° by operating the adsorption positioning unit to arrive below the first heating plate 5, and the control center starts the built-in driving source (not shown in the figure) at the positioning lead screw 11; it is worth noting that the position of the driving rack 39 is also synchronously adjusted so that the tooth groove thereon is located at the moving path of the second gear 32, and when the control center receives the signal that the adsorption positioning unit has successfully turned the material to below the first heating plate 5, it synchronously operates the telescopic rod body 31 so that the second gear 32 at the output end thereof is moved to the side of the driving rack 39, thereby actively controlling the meshing of the two;

[0097] When the positioning screw rod 11 starts to rotate, the threaded retaining cross plate 6 is limited to move downward at the positioning slide column 10, so that the retaining cross plate 6 is driven to move downward with the first heating plate 5 under the action of the retaining cylinder 12 and the retaining spring 13; at the same time, when the retaining cross plate 6 moves downward, the T-shaped square plate 15 is driven to move downward synchronously, so that the retaining rack 16 on both sides is driven to move downward under the action of the auxiliary cylinder 17 and the auxiliary spring 18, so as to mesh the first gear 19 to rotate, so that the first pulley 20 on it is driven to rotate the second pulley 33 under the action of the first transmission belt 34, so that the telescopic rod body 31 drives the second gear 32 to rotate. Since the second gear 32 is in meshing state with the driving rack 39 at this time, and the driving rack 39 and the retaining rack 16 are located on both sides of the second gear 32, when the retaining rack 16 moves downward, the second gear 32 is driven to rotate and mesh the driving rack 39 to move upward, so as to drive the driving base 35 to move upward synchronously while driving the driving rack 39 to move upward, and the driving base 35 is installed on the second heating plate 8, so as to drive the second heating plate 8 to move upward, so that the driving cylinder 36 on the driving base 35 is limited to move at the driving block 37, so that the driving spring 38 is in a buffering state, so that the first heating plate 5 moves downward while synchronously driving the second heating plate 8 to move upward, so that the first heating plate 5 and the second heating plate 8 move relatively;

[0098] When the second heating plate 8 moves beyond the length of the suction pipe 29, the material is no longer connected with the suction pipe 29, so that the second heating plate 8 lifts the material to move upward. When the first heating plate 5 and the second heating plate 8 move relatively and contact, the S-shaped heating pipe 14 is started to conduct heat to the first heating plate 5 and the second heating plate 8, and the contact of the two can act heat on the material that is in close contact, so that the material is in a heated state and is pressed together, so as to complete the lamination operation of the material, so that the adhesive between the materials is fully melted, and the production of the care pad is completed;

[0099] When the first heating plate 5 and the second heating plate 8 extrude the material, it means that the first heating plate 5 and the second heating plate 8 have been unable to continue to move and are limited here, and the continued rotation of the positioning screw rod 11 causes the positioning horizontal plate 6 to move on the positioning cylinder 12, and the positioning spring 13 is in a buffering state, which is used to continuously apply pressure to the first heating plate 5, while when the positioning horizontal plate 6 continues to move downward, the driving rack 39 on the second heating plate 8 cannot continue to move due to the limitation, so that the second gear 32 and the first gear 19 cannot continue to rotate, which causes the positioning rack 16 engaged with the first gear 19 to be unable to continue to move downward, so that the T-shaped square plate 15 on the downward moving positioning horizontal plate 6 is limited to move in the cavity on the side of the positioning rack 16 and the auxiliary cylinder 17, so that the auxiliary spring 18 is in a buffering state, thereby avoiding the continued movement of the positioning horizontal plate 6 and avoiding the existence of movement obstacles; at the same time, the force of the T-shaped square plate 15 on the positioning rack 16 always exists, which avoids the second heating plate 8 from falling down, so that the positioning horizontal plate 6 continues to move on the positioning cylinder 12, so as to continuously strengthen the pressure of the first heating plate 5 on the second heating plate 8, avoid the displacement or dislocation of the material pressed between the two, and continuously increase the contact strength of the first heating plate 5 and the second heating plate 8, so as to avoid the existence of gaps between the two due to insufficient contact strength, which causes insufficient heating in some areas or dead angles, so that the material can be uniformly heated, and the insufficient adhesion strength between the layers caused by the insufficient melting of the adhesive between the materials is avoided, thereby improving the production effect and quality of the nursing pad; the above hot pressing operation of the material is performed by the relative movement of the first heating plate 5 and the second heating plate 8, which can heat and press from both sides at the same time, greatly shortens the time for the material to reach the hot pressing condition, and improves the production yield; at the same time, synchronous heating on both sides can reduce the temperature gradient in the thickness direction of the material, avoid the problem of “one side heats first and the other side heats later” when heating a single plate, make the pressing quality more stable, improve the production quality of the nursing pad, and improve the pressing effect between the materials, thereby further reducing the limitations of the production line in producing the nursing pad; the heating plate can uniformly heat the material, avoid the insufficient heating in some areas of the material, which causes the insufficient melting of the adhesive and the insufficient adhesion strength between the layers, avoid the problems of delamination and opening of the adhesive 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 producing the nursing pad.

[0100] The positioning horizontal plate 6 of the embodiment is provided with a double-action uniform heating assembly, which is used to uniformly heat the material; the double-action uniform heating assembly comprises:

[0101] The driving shaft 7 is installed on the side of the positioning horizontal plate 6 away from the conveying belt 2;

[0102] The guide rack 40 is installed on the side of the first heating plate 5 close to the positioning horizontal plate 6;

[0103] A guide base 41 is installed on the retaining horizontal plate 6; a guide rotating shaft 42 is installed on the guide base 41, and a guide gear 43 is installed on the guide rotating shaft 42; the guide gear 43 is in meshing connection with the guide rack 40;

[0104] A driving bevel gear 44 is connected to the end of the guide rotating shaft 42 away from the guide base 41;

[0105] A driven base 45 is installed on the retaining horizontal plate 6; a rotating shaft 46 is installed on the driven base 45, and a third pulley 47 is connected to one end of the rotating shaft 46, and a driven bevel gear 48 is connected to the other end of the rotating shaft 46; the driven bevel gear 48 is in meshing connection with the driving bevel gear 44;

[0106] A fourth pulley 49 is installed on the driving rotating shaft 7;

[0107] The complex heating uniform component further comprises:

[0108] A second transmission belt 50 is connected to the fourth pulley 49 at one end and connected to the third pulley 47 at the other end; the second transmission belt 50 is in sliding fit with the fourth pulley 49 and the third pulley 47;

[0109] A rotating disc 51 is installed on the end of the driving rotating shaft 7 away from the retaining horizontal plate 6;

[0110] A rotating slide column 52 is connected to the edge of the rotating disc 51 away from the driving rotating shaft 7;

[0111] A rectangular cross block 53 is on the same side as the rotating slide column 52; a rectangular sliding groove 54 is provided on the side of the rectangular cross block 53 close to the rotating disc 51; the rectangular sliding groove 54 is in sliding fit with the rotating slide column 52;

[0112] A guide square column 55; two guide square columns 55 are symmetrically connected to the side surface of the rectangular cross block 53;

[0113] A driving base 56 is installed on the retaining horizontal plate 6; the guide square column 55 is connected to the driving base 56 in a penetrating manner, and the two are in sliding fit;

[0114] The complex heating uniform component further comprises:

[0115] A heating roller 57 is located on the side of the first heating plate 5 away from the conveying belt 2, and the side is located in the moving path of the heating roller 57;

[0116] A linkage square seat 58; the heating roller 57 is connected in the linkage square seat 58; two pressure cylinders 59 are symmetrically provided on the side of the linkage square seat 58 away from the first heating plate 5;

[0117] The pressure cross plate 60 is connected with the two pressure cylinders 59 through, and the two pressure cylinders 59 are in sliding fit;

[0118] The pressure spring 61 is sleeved on the pressure cylinder 59, one end of the pressure spring 61 is fixedly connected with the linkage square base 58, and the other end is connected with a pressure limiting plate;

[0119] The bending square rod 62 is connected with the rectangular cross block 53 away from the guide square column 55 on one side, and connected with the pressure cross plate 60 on the other side;

[0120] When the second heating plate 8 and the first heating plate 5 are not in contact, the moving retaining horizontal plate 6 is moved through the retaining cylinder 12 and the retaining spring 13, so that the first heating plate 5 is moved downward, and the distance between the first heating plate 5 and the retaining horizontal plate 6 is not changed; when the second heating plate 8 and the first heating plate 5 are in contact, they are limited, the retaining horizontal plate 6 is limited to move at the retaining cylinder 12 through the continuous rotation of the positioning screw rod 11, the retaining spring 13 is in a buffering state, then the distance between the first heating plate 5 and the retaining horizontal plate 6 is reduced, the guiding gear 43 is installed on the retaining horizontal plate 6 through the guiding rotating shaft 42 and the guiding base 41, the guiding 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 is changed, the guiding rack 40 is engaged with the guiding gear 43 to rotate, the guiding gear 43 is driven to rotate the fourth pulley 49 through the driving of the driving bevel gear 44, the driven bevel gear 48, the rotating shaft 46, the third pulley 47 and the second transmission belt 50, the driving rotating shaft 7 on the fourth pulley 49 is driven to rotate the rotating disc 51, the rotating slide column 52 on the rotating disc 51 is moved back and forth in the rectangular sliding groove 54, the rectangular sliding groove 54 is arranged on the rectangular cross block 53, and the rotating slide column 52 is limited to move at the driving base 56 through the guiding square column 55, and the linkage square base 58 is moved back and forth under the action of the bending square rod 62.It is worth mentioning that when the distance between the retaining horizontal plate 6 and the first heating plate 5 becomes smaller, the heating roller 57 on the retaining horizontal plate 6 moves towards and contacts the first heating plate 5 which no longer moves, and the heating roller 57 is installed at the linkage square seat 58, and the heating roller 57 is driven to reciprocate on the top of the first heating plate 5 through the reciprocating movement of the linkage square seat 58, so as to uniformly apply pressure on the first heating plate 5 and generate heat on the first heating plate 5, thereby avoiding the phenomenon that the uneven pressure caused by the contact between the first heating plate 5 and the second heating plate 8 when laminating the material leads to insufficient heating in some areas. At the same time, when the distance between the first heating plate 5 and the retaining horizontal plate 6 becomes smaller and smaller, since the heating roller 57 has contacted the first heating plate 5 and cannot continue to move, the bending square rod 62 which continues to move downward drives the pressure horizontal plate 60 to move downward, so that the pressure horizontal plate 60 is limited to move at the pressure cylinder 59, so that the pressure spring 61 is in a buffering state, so that the pressure applied by the heating roller 57 on the first heating plate 5 will continue to increase, so as to improve the contact strength between the first heating plate 5 and the second heating plate 8, thereby improving the laminating effect on the material, and through the reciprocating movement of the heating roller 57 on the first heating plate 5, pressure is continuously applied on the first heating plate 5, thereby avoiding the dead angle or insufficient strength when the first heating plate 5 contacts the second heating plate 8, which affects the laminating effect, so as to uniformly heat the material during lamination, thereby avoiding the insufficient heating in some areas of the material, which leads to the insufficient melting of the adhesive between the materials, resulting in insufficient interlayer bonding strength, thereby avoiding the problems such as delamination and opening of the adhesive of the laminated material, i.e. the nursing pad, during subsequent use, thereby improving the production quality and use effect of the nursing pad, and reducing the limitations of the production line during production.

[0121] The retaining square plate 4 of the embodiment further comprises an adsorption positioning unit for adjusting the position of the material on the conveying belt 2 to the movement path when the first heating plate 5 moves downward.

[0122] The second heating plate 8 is located on the opposite side of the two retaining square plates 4.

[0123] The gas storage box 21 is located on the opposite side of the two retaining square plates 4, and the initial position of the gas storage box 21 is located above the second heating plate 8. The two sides of the gas storage box 21 are respectively provided with a driving shaft 22 and a driven shaft 23.

[0124] The driving motor 24 is installed on the retaining square plate 4, and one end of the driving shaft 22 away from the gas storage box 21 penetrates through one of the retaining square plates 4 and is connected with the output end of the driving motor 24.

[0125] The L-shaped rotating block 25, and the driven shaft 23 penetrates through the other retaining square plate 4 and is fixedly connected with the L-shaped rotating block 25.

[0126] A limiting swivel ring 26 is installed on the retaining square plate 4 where the L-shaped swivel block 25 is located; the limiting swivel ring 26 is in rotational cooperation with the L-shaped swivel block 25;

[0127] An air suction pump 27 is installed on the side of the gas storage tank 21 far away from the second heating plate 8;

[0128] An air venting hose 28 is installed on one end of the air suction pump 27 and on the other end of the side of the gas storage tank 21, and is in communication with each other;

[0129] A plurality of air suction pipes 29 are connected to the side of the gas storage tank 21 far away from the air suction pump 27, and are in communication with each other; the air suction pipes 29 are connected to the second heating plate 8, and are in sliding cooperation with each other; the initial positions of the air suction pipes 29 are all towards the conveying belt 2;

[0130] A driving base 35 is fixedly installed on the side of the second heating plate 8; the driving base 35 is installed with a driving cylinder 36;

[0131] A driving square block 37 is connected to the side of the gas storage tank 21; the driving cylinder 36 is connected to the driving square block 37, and is in sliding cooperation with each other;

[0132] A driving spring 38 is sleeved on the driving cylinder 36; one end of the driving spring 38 is fixedly connected to the driving square block 37, and the other end is fixedly connected to the driving base 35; the side of the driving base 35 far away from the driving cylinder 36 is connected with a driving rack 39; the tooth grooves on the two driving racks 39 on one side of the second heating plate 8 are oppositely directed; when the material position on the conveying belt 2 is adjusted to the moving path of the first heating plate 5 by the adsorption positioning unit, the positions of the driving racks 39 are synchronously exchanged, at this time, the second gear 32 on the telescopic end of the telescopic rod body 31 can be moved to the side of the driving rack 39, and the two are in meshing arrangement;

[0133] When the material to be laminated moves to the lower side of the second heating plate 8 through the conveying belt 2, the material is located below the plurality of suction pipes 29, and the suction pump 27 is started to generate suction force through the air hose 28 to the air tank 21. The air tank 21 divides the suction force to the plurality of suction pipes 29, so that the output end of the plurality of suction pipes 29 generates strong suction force to adsorb the material at the output end of the suction pipe 29. When the material is adsorbed on the plurality of suction pipes 29, a sensor (not shown in the figure) is provided to send a signal to the control center. The control center sends a start signal to the driving motor 24 to drive the output end of the driving shaft 22 to rotate, so that the air tank 21 on it rotates. The material adsorbed on the plurality of suction pipes 29 is installed on the air tank 21, so that the air tank 21 rotates synchronously to drive the material to rotate until it is turned over by 180° and stopped. The position of the material adsorbed by the plurality of suction pipes 29 is adjusted to the lower side of the first heating plate 5 for heat pressing operation by the heated laminating device. The laminating operation of the nursing pad on the conveying belt 2 affects the working efficiency, and the laminating operation on the conveying belt 2 continuously bears strong pressure, which causes damage, thereby prolonging the service life of the conveying belt 2 and further improving the use effect of the production line. It is worth mentioning that when the air tank 21 rotates, the driven shaft 23 on it also rotates on the fixed plate 4, so that the L-shaped block 25 on the driven shaft 23 rotates in the limiting ring 26 to limit the rotation of the air tank 21, avoiding the shaking of the air tank 21 during rotation to cause the deviation of the position of the adsorbed material and reduce the laminating effect, thereby improving the production effect of the production line and the quality of the nursing pad produced.

[0134] It is worth mentioning that several suction pipes 29 are arranged on the second heating plate 8, that is, the second heating plate 8 is limited to move at the suction pipes 29 when moving, so that the two are limited to each other, and at the same time, the second heating plate 8 is also limited to move at the driving block 37 by the driving cylinder 36, avoiding the dislocation or shaking phenomenon of the second heating plate 8 when moving, which affects the docking accuracy of the second heating plate 8 with the first heating plate 5, thereby reducing the laminating effect, thereby reducing the limitation during lamination; at the same time, the opposite also limits the position of the suction pipe 29, avoiding the use position of the several suction pipes 29 from being deviated, which causes the dislocation or shaking phenomenon of the adsorbed material, thereby improving the adsorption strength and effect of the material by the suction pipe 29; at the same time, since the 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 of the material continuously generates heat, that is, the gas of the adsorbed material can eliminate the water vapor in and around the material, thereby reducing 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, 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 condensation, and ensure the normal progress of the adsorption process, thereby avoiding the replacement of the position of the material that needs to be laminated for the production of the nursing pad due to the high humidity of the material, which cannot be adsorbed on the suction pipe 29, thereby reducing the limitation of the production line during use; at the same time, the heating of the material can also evaporate the moisture on the material, thereby reducing the water content of the material. Dry materials are not only easy to adsorb, but also reduce the heating time of the material during lamination, thereby avoiding the need to spend too much time drying the material before lamination, further avoiding the lamination of the material in a relatively wet state, which leads to insufficient interlayer adhesion strength, thereby shortening the preheating time of the material and further improving the production effect and quality of the nursing pad.

[0135] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0136] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A single absorbent core body care pad production line characterized by: The application relates to a heating laminating device for laminating materials to make nursing pads, which comprises a fixed base plate, the side of which is provided with a conveying belt for conveying materials to be laminated; a base connecting column is arranged above the conveying belt on the fixed base plate, and a heating laminating device for laminating the materials to make the nursing pads is arranged on the base connecting column; the heating laminating device comprises: a fixed square plate; two fixed square plates are symmetrically arranged on the two sides of the base connecting column; a first heating plate arranged below the base connecting column; a fixed horizontal plate arranged on the opposite side of the two fixed square plates; a complex uniform heating assembly arranged on the fixed horizontal plate and used for uniformly heating the materials; the complex uniform heating assembly comprises: a driving rotating shaft arranged on the side of the fixed horizontal plate away from the conveying belt; an adsorption positioning unit arranged on the fixed square plate and used for adjusting the position of the materials on the conveying belt to the moving path when the first heating plate moves downward; the adsorption positioning unit comprises: a second heating plate arranged on the opposite side of the two fixed square plates; the heating laminating device further comprises: two limiting sliding grooves arranged on the opposite sides of the two fixed square plates respectively; a positioning sliding column arranged in one of the limiting sliding grooves; the positioning sliding column is connected to the fixed horizontal plate and is in sliding fit with the fixed horizontal plate; a positioning screw rod arranged in the other limiting sliding groove; the positioning screw rod is in screw connection with the fixed horizontal plate; a fixed cylinder arranged on the top of the fixed horizontal plate and in sliding fit with the fixed horizontal plate; one end of the fixed cylinder close to the conveying belt is fixedly connected to the side of the first heating plate away from the conveying belt; a fixed spring sleeved on the fixed cylinder; one end of the fixed spring is fixedly connected to the fixed horizontal plate, and the other end of the fixed spring is fixedly connected to the first heating plate; S-shaped heating pipes are arranged in the first heating plate and the second heating plate; the adsorption positioning unit further comprises: a gas storage box arranged on the opposite side of the two fixed square plates; the initial position of the gas storage box is above the second heating plate; a driving rotating shaft and a driven rotating shaft are arranged on the two sides of the gas storage box respectively; a driving motor arranged on the fixed square plate; one end of the driving rotating shaft away from the gas storage box penetrates through one of the fixed square plates and is connected to the output end of the driving motor; an L-shaped rotating block; the driven rotating shaft penetrates through the other fixed square plate and is fixedly connected to the L-shaped rotating block; a limiting rotating ring arranged on the fixed square plate where the L-shaped rotating block is arranged; the limiting rotating ring is in rotating fit with the L-shaped rotating block; the complex uniform heating assembly further comprises: a guide rack arranged on the side of the first heating plate close to the fixed horizontal plate; a guide base arranged on the fixed horizontal plate; a guide rotating shaft is further arranged on the guide base, and a guide gear is arranged on the guide rotating shaft; the guide gear is in meshing connection with the guide rack; a driving bevel gear connected to one end of the guide rotating shaft away from the guide base; a driven base arranged on the fixed horizontal plate; a rotating shaft is arranged on the driven base, one end of the rotating shaft is connected to a third pulley, and the other end of the rotating shaft is connected to a driven bevel gear; the driven bevel gear is in meshing connection with the driving bevel gear; a fourth pulley arranged on the driving rotating shaft.

2. A single absorbent core body care pad production line according to claim 1, characterized in that: The heating laminating device further comprises: a T-shaped square plate arranged on the side of the fixed horizontal plate away from the fixed square plate; The retaining rack is located on both sides of the T-shaped square plate; the tooth slots of the two retaining racks face away from each other; the retaining rack is provided with a cavity on the side close to the T-shaped square plate, and an auxiliary column is fixedly installed in the cavity; the T-shaped square plate is slidingly arranged in the cavities of the two retaining racks; the auxiliary column penetrates through the T-shaped square plate and is in sliding fit with the T-shaped square plate; The auxiliary spring is sleeved on the auxiliary column; one end of the auxiliary spring is fixedly connected with the inner wall of the cavity, and the other end is fixedly connected with the T-shaped square plate; The first gear is installed on the retaining square plate and is in meshing connection with the retaining rack; The first pulley is connected to the first gear.

3. A single absorbent core body care pad production line according to claim 1, characterized in that: The adsorption positioning unit further comprises: The air suction pump is installed on the side of the gas storage tank body away from the second heating plate; The air hose is installed on the air suction pump at one end and on the side of the gas storage tank body at the other end, and is in communication with each other; The air suction pipe is connected to the second heating plate in a penetrating manner and is in sliding fit with the second heating plate; the initial positions of the air suction pipes are all towards the conveying belt.

4. A single absorbent core body care pad production line according to claim 2, characterized in that: The heating laminated device further comprises: The auxiliary base is fixedly installed on the retaining square plate; The telescopic rod body is installed on the auxiliary base; one end of the telescopic rod body close to the first heating plate is a telescopic end, and the second gear is installed on the telescopic end; The second pulley is connected to one end of the telescopic rod body away from the second gear; The first transmission belt is connected to the second pulley at one end and to the first pulley at the other end; the first transmission belt is in sliding fit with the first pulley and the second pulley.

5. A single absorbent core body care pad production line according to claim 3, characterized in that: The adsorption positioning unit further comprises: The driving base is fixedly installed on the side of the second heating plate; the driving cylinder is installed on the driving base; The driving block is connected to the side of the gas storage tank body; the driving cylinder penetrates through the driving block and is in sliding fit with the driving block; The driving spring is sleeved on the driving cylinder; one end of the driving spring is fixedly connected with the driving block, and the other end is fixedly connected with the driving base; the side of the driving base away from the driving cylinder is connected with the driving rack; the tooth slots of the two driving racks on one side of the second heating plate face each other; when the adsorption positioning unit adjusts the position of the material on the conveying belt to the moving path where the first heating plate moves downward, the positions of the driving racks are synchronously exchanged, at this time, the telescopic end of the telescopic rod body can be moved to the side of the driving rack, and the two are in meshing arrangement.

6. A single absorbent core body care pad production line according to claim 5, characterized in that: The complex uniform heating assembly further comprises: The second transmission belt is connected to the fourth pulley at one end and to the third pulley at the other end; the second transmission belt is in sliding fit with the fourth pulley and the third pulley; The rotating disc is installed on one end of the driving shaft away from the retaining horizontal plate; The rotating slide column is connected to the edge of the rotating disc away from the driving shaft; The rectangular cross block is on the same side of the rotating slide column; the side of the rectangular cross block close to the rotating disc is provided with a penetrating rectangular sliding groove; the rectangular sliding groove is in sliding fit with the rotating slide column; The guide square column is symmetrically connected to the side of the rectangular cross block; The active base is installed on the retaining horizontal plate; the guide square column is connected to the active base and the two are slidingly fitted.

7. A single absorbent core body care pad production line according to claim 6, characterized in that: The complex moving and uniform heating assembly further comprises: The heating roller is located on the side of the first heating plate away from the conveying belt and the side is located at the moving path of the heating roller; The linkage square base; the heating roller is connected in the linkage square base; two pressure cylinders are symmetrically arranged on the side of the linkage square base away from the first heating plate; The pressure horizontal plate; the two pressure cylinders are connected to the pressure horizontal plate and the two are slidingly fitted; The pressure spring is sleeved on the pressure cylinder; one end of the pressure spring is fixedly connected with the linkage square base and the other end is connected with the pressure limiting plate; the pressure limiting plate is connected to the end of the pressure cylinder away from the linkage square base; The bending square rod is connected at one end with the rectangular horizontal block away from the side of the guide square column and at the other end with the pressure horizontal plate.

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