Lapping and slitting equipment

Abstract

The utility model provides lapping and slitting equipment which comprises a lapping mechanism and a slitting mechanism, the slitting mechanism is fixedly arranged on the front side of the lapping mechanism and connected with the conveying downstream of the lapping mechanism, three sets of lower pressing rollers are rotatably installed on a sixth rack, and the lower pressing rollers correspond to the front side of the lapping mechanism in the horizontal direction. The first upper pressing roller and the second upper pressing roller are both fixed to the sixth rack and are adjustable in position in the vertical direction, the first upper pressing roller corresponds to the positions above the two sets of lower pressing rollers on the rear side, the second upper pressing roller corresponds to the positions above the two sets of lower pressing rollers on the front side, and the sixth rotating driving assembly is fixed to the sixth rack and is in driving connection with the lower pressing rollers. The lower pressing roller is in driving connection with the first upper pressing roller through a first synchronous assembly, and the lower pressing roller is in driving connection with the second upper pressing roller through a second synchronous assembly. The design has the advantages that the thickness of the web can be adjusted by adjusting the first upper pressing roller, the first driving rack can always keep a stable meshing state, and the adjusting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of non-woven fabric production, and particularly relates to a web laying and cutting device. Background Art

[0002] Non-woven fabric is a fabric formed without spinning and weaving. It only arranges textile staple fibers or filaments in a directional or random manner to form a fiber web structure, and then is reinforced by mechanical, thermal bonding or chemical methods. It is a new type of fiber product directly formed by using polymer chips, staple fibers or filaments through various fiber web forming methods and consolidation technologies, with a soft, breathable and planar structure. Non-woven fabrics are widely used in various fields. In the aspect of medical and health fabrics, they are often used to make surgical gowns, protective clothing, disinfection wrapping cloths, masks, diapers, sanitary napkins for women, etc.

[0003] When making medical and health fabrics, after the fiber cotton material is opened and formed into a single-layer cotton web, it is necessary to lay and stack the cotton web into a multi-layer structure in a web laying machine, and compact the multi-layer cotton web and then cut it to form cotton cloth of the required width. When producing fabrics of different thicknesses, the distance between the upper and lower pressure rollers is adjusted to adjust the thickness of the fabric. The upper and lower pressure rollers rotate synchronously through a synchronous belt. After the position of the pressure rollers is adjusted, the rollers for controlling the tension of the synchronous belt also need to be adjusted accordingly. The current equipment has the rollers for adjusting the tension fixedly arranged. After adjusting the pressure rollers, it is necessary to disassemble the tension rollers and move them to the appropriate positions, and then fix the tension rollers. The adjustment process is very cumbersome. Therefore, it is necessary to make a web laying and cutting device to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a web laying and cutting device to solve the problems mentioned in the background art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A web laying and cutting device includes a web laying mechanism and a cutting mechanism. The cutting mechanism is fixedly arranged on the front side of the web laying mechanism and is connected to the downstream of the web laying mechanism for conveying. The cutting mechanism includes a sixth frame, a lower pressure roller, a first upper pressure roller, a second upper pressure roller, a sixth rotation driving component, a first synchronous component, a second synchronous component, a cutting component and a cotton cloth conveying curtain. The lower pressure roller is rotatably installed on the sixth frame. Three groups of lower pressure rollers are arranged horizontally and correspond to the front side of the web laying mechanism. The first upper pressure roller and the second upper pressure roller are both fixed on the sixth frame and their positions are adjustable in the vertical direction. The first upper pressure roller corresponds to the upper side of the two groups of lower pressure rollers at the rear, and the second upper pressure roller corresponds to the upper side of the two groups of lower pressure rollers at the front. The sixth rotation driving component is fixed on the sixth frame and is drivingly connected to the lower pressure roller. The lower pressure roller is drivingly connected to the first upper pressure roller through the first synchronous component, and the lower pressure roller is drivingly connected to the second upper pressure roller through the second synchronous component;

[0007] The first synchronization component includes a first driving gear, a second driving gear, a third driving gear, a first tension gear, a second tension gear, a tension swing rod, a compression spring and a first driving rack. The first driving gear, the second driving gear and the third driving gear are respectively fixed to the right end of the middle lower pressing roller, the right end of the rear lower pressing roller and the right end of the first upper pressing roller. The lower end of the tension swing rod is hinged to the sixth frame. The rear end of the compression spring is fixed to the sixth frame, and the front end is fixed to the middle part of the tension swing rod. The first tension gear is rotatably installed on the sixth frame and corresponds to the front side above the third driving gear. The second tension gear is rotatably installed at the upper end of the tension swing rod and corresponds to the rear side above the third driving gear. The inner sides of the first driving rack are meshed with the first driving gear, the second driving gear, the first tension gear and the second tension gear respectively. The front end of the outer side of the first driving rack is meshed with the third driving gear.

[0008] Further description of the present utility model: The second synchronization component includes a fourth driving gear, a fifth driving gear, a sixth driving gear, a first fixed-distance swing rod, a second fixed-distance swing rod, a connecting gear, a second driving rack and a third driving rack. The fourth driving gear, the fifth driving gear and the sixth driving gear are respectively fixed to the left end of the middle lower pressing roller, the left end of the front lower pressing roller and the left end of the second upper pressing roller. The rear ends of the first fixed-distance swing rod and the second fixed-distance swing rod are hinged. The front ends of the first fixed-distance swing rod and the second fixed-distance swing rod are respectively rotatably installed at the left end of the front lower pressing roller and the left end of the second upper pressing roller. The connecting gear is rotatably installed at the rear end of the second fixed-distance swing rod. The rotating shafts at the hinged part of the first fixed-distance swing rod and the second fixed-distance swing rod are coaxial with the rotating shaft of the connecting gear. The connecting gear is meshed with the sixth driving gear. The inner side of the second driving rack is meshed with both the fourth driving gear and the fifth driving gear. The inner side of the third driving rack is meshed with both the fifth driving gear and the connecting gear.

[0009] Further description of the present utility model: The cutting component includes an installation cross beam, a cutter support, a disk cutter and a supporting roller. Both the left and right sides of the installation cross beam are fixed to the sixth frame. The cutter support is fixed to the installation cross beam and is adjustable in position along the left-right direction. The disk cutter is rotatably installed at the lower end of the cutter support. The supporting roller is rotatably installed on the sixth frame and corresponds to the lower side of the disk cutter. The surface of the supporting roller is made of an elastic material. The cotton cloth conveying curtain corresponds to the front side of the supporting roller. Multiple groups of the cutter support, the disk cutter and the supporting roller are arranged along the left-right direction.

[0010] The beneficial effects of the present utility model are as follows: A single-layer cotton web is laid and stacked in the web laying mechanism to form a multi-layer structure and is conveyed to the front end of the web laying mechanism. The first upper pressing roller is correspondingly located above the two lower pressing rollers at the rear end, and the distance between the first upper pressing roller and the lower pressing rollers is preset. The sixth rotary drive assembly drives the lower pressing rollers, the first upper pressing roller, and the second upper pressing roller to rotate, and conveys the cotton web forward. The multi-layer cotton web passes between the first upper pressing roller and the lower pressing rollers, so that the multi-layer cotton web is pressed tightly to form the required thickness. The function of the second upper pressing roller is also to extrude the multi-layer cotton web to make it compact. According to process requirements, the second upper pressing roller can be selected. The pressed multi-layer cotton web is cut into a certain width by the cutting assembly. The cut cotton web is conveyed to the subsequent process through the cotton cloth conveying curtain. When it is necessary to change the extrusion thickness of the cotton web, directly adjust the position of the first upper pressing roller in the vertical direction. At the moment of adjustment, the first driving rack will become loose or tight, and the compression spring originally in the stretched state will correspondingly return to its original state or be further stretched, so that the first driving rack can always maintain a stable meshing state with each gear. The advantage of this design is that adjusting the first upper pressing roller can realize the thickness adjustment of the cotton web, and the first driving rack can always maintain a stable meshing state, improving the adjustment efficiency. Description of the Drawings

[0011] Figure 1 is the overall structure diagram of the present utility model (viewpoint one);

[0012] Figure 2 is the overall structure diagram of the present utility model (viewpoint two);

[0013] Figure 3 is Figure 1 the partial enlarged view at position B in

[0014] Figure 4 is Figure 2 the partial enlarged view at position C in

[0015] Description of the Reference Numerals:

[0016] 61. Web laying mechanism; 62. Slitting mechanism; 621. Sixth frame; 622. Lower pressing roller; 623. First upper pressing roller; 624. Second upper pressing roller; 625. Sixth rotary drive assembly; 626. First synchronization assembly; 6261. First drive gear; 6262. Second drive gear; 6263. Third drive gear; 6264. First tension gear; 6265. Second tension gear; 6266. Tension swing rod; 6267. Compression spring; 6268. First drive rack; 627. Second synchronization assembly; 6271. Fourth drive gear; 6272. Fifth drive gear; 6273. Sixth drive gear; 6274. First fixed-distance swing rod; 6275. Second fixed-distance swing rod; 6276. Connecting gear; 6277. Second drive rack; 6278. Third drive rack; 628. Cutting assembly; 6281. Installation cross beam; 6282. Cutter support; 6283. Disc cutter; 6284. Support roller; 629. Cotton cloth conveying curtain. Detailed implementation mode

[0017] The present utility model will be further described below in conjunction with the accompanying drawings:

[0018] As Figures 1 to 4 shown, a web laying and slitting device includes a web laying mechanism 61 and a slitting mechanism 62. The slitting mechanism 62 is fixedly arranged on the front side of the web laying mechanism 61 and is connected to the downstream of the conveying of the web laying mechanism 61. The slitting mechanism 62 includes a sixth frame 621, a lower pressing roller 622, a first upper pressing roller 623, a second upper pressing roller 624, a sixth rotary drive assembly 625, a first synchronization assembly 626, a second synchronization assembly 627, a cutting assembly 628 and a cotton cloth conveying curtain 629. The lower pressing roller 622 is rotatably installed on the sixth frame 621. Three groups of lower pressing rollers 622 are arranged in the horizontal direction and correspond to the front side of the web laying mechanism 61. The first upper pressing roller 623 and the second upper pressing roller 624 are both fixed on the sixth frame 621 and their positions are adjustable in the vertical direction. The first upper pressing roller 623 corresponds to the upper side of the rear two groups of lower pressing rollers 622, and the second upper pressing roller 624 corresponds to the upper side of the front two groups of lower pressing rollers 622. The sixth rotary drive assembly 625 is fixed on the sixth frame 621 and is drivingly connected to the lower pressing roller 622. The lower pressing roller 622 is drivingly connected to the first upper pressing roller 623 through the first synchronization assembly 626, and the lower pressing roller 622 is drivingly connected to the second upper pressing roller 624 through the second synchronization assembly 627;

[0019] The first synchronization component 626 includes a first driving gear 6261, a second driving gear 6262, a third driving gear 6263, a first tension gear 6264, a second tension gear 6265, a tension swing rod 6266, a compression spring 6267, and a first driving rack 6268. The first driving gear 6261, the second driving gear 6262, and the third driving gear 6263 are respectively fixed to the right ends of the middle lower pressing roller 622, the right ends of the rear lower pressing roller 622, and the right end of the first upper pressing roller 623. The lower end of the tension swing rod 6266 is hinged to the sixth frame 621. The rear end of the compression spring 6267 is fixed to the sixth frame 621, and the front end is fixed to the middle part of the tension swing rod 6266. The first tension gear 6264 is rotatably installed on the sixth frame 621 and corresponds to the front side above the third driving gear 6263. The second tension gear 6265 is rotatably installed at the upper end of the tension swing rod 6266 and corresponds to the rear side above the third driving gear 6263. The inner sides of the first driving rack 6268 are all meshed with the first driving gear 6261, the second driving gear 6262, the first tension gear 6264, and the second tension gear 6265. The front end of the outer side of the first driving rack 6268 is meshed with the third driving gear 6263.

[0020] The single-layer cotton web is laid and stacked in the web laying mechanism 61 to form a multi-layer structure and is conveyed to the front end of the web laying mechanism 61. The first upper pressing roller 623 corresponds to the upper side of the two groups of lower pressing rollers 622 at the rear end, and the distance between the first upper pressing roller 623 and the lower pressing rollers 622 is preset. The sixth rotary drive component 625 drives the lower pressing rollers 622, the first upper pressing roller 623, and the second upper pressing roller 624 to rotate to convey the cotton web forward. The multi-layer cotton web passes between the first upper pressing roller 623 and the lower pressing rollers 622 to compress the multi-layer cotton web and form the required thickness. The function of the second upper pressing roller 624 is also to extrude the multi-layer cotton web to make it compact. According to process requirements, the second upper pressing roller 624 can be selected. The multi-layer cotton web after being pressed is cut by the cutting component 628 according to a certain width. The cut cotton web is conveyed to the subsequent process through the cotton cloth conveying curtain 629. When it is necessary to change the extrusion thickness of the cotton web, directly adjust the position of the first upper pressing roller 623 in the vertical direction. At the moment of adjustment, the first driving rack 6268 will become loose or taut, and the compression spring 6267 originally in a stretched state will correspondingly return to its original state or be further stretched, so that the first driving rack 6268 can always maintain a stable meshing state with each gear. The advantage of this design is that adjusting the first upper pressing roller 623 can achieve the adjustment of the thickness of the cotton web, and the first driving rack 6268 can always maintain a stable meshing state, improving the adjustment efficiency.

[0021] The second synchronization component 627 includes a fourth driving gear 6271, a fifth driving gear 6272, a sixth driving gear 6273, a first fixed-distance swing rod 6274, a second fixed-distance swing rod 6275, an engaging gear 6276, a second driving rack 6277 and a third driving rack 6278. The fourth driving gear 6271, the fifth driving gear 6272, and the sixth driving gear 6273 are respectively fixed to the left end of the middle lower pressing roller 622, the left end of the front lower pressing roller 622, and the left end of the second upper pressing roller 624. The rear ends of the first fixed-distance swing rod 6274 and the second fixed-distance swing rod 6275 are hinged. The front end of the first fixed-distance swing rod 6274 and the front end of the second fixed-distance swing rod 6275 are respectively rotatably installed at the left end of the front lower pressing roller 622 and the left end of the second upper pressing roller 624. The engaging gear 6276 is rotatably installed at the rear end of the second fixed-distance swing rod 6275. The rotating shafts at the hinged joints of the first fixed-distance swing rod 6274 and the second fixed-distance swing rod 6275 are coaxial with the rotating shaft of the engaging gear 6276. The engaging gear 6276 meshes with the sixth driving gear 6273. The inner side of the second driving rack 6277 meshes with both the fourth driving gear 6271 and the fifth driving gear 6272. The inner side of the third driving rack 6278 meshes with both the fifth driving gear 6272 and the engaging gear 6276.

[0022] When it is necessary to adjust the extrusion thickness of the cotton web by the second upper pressing roller 624, directly adjust the position of the second upper pressing roller 624 in the vertical direction. Due to the action of the first fixed-distance swing rod 6274 and the second fixed-distance swing rod 6275, after the position of the second upper pressing roller 624 changes, the distances between the engaging gear 6276 and the fifth driving gear 6272 and the sixth driving gear 6273 are always constant values. Thus, the second driving rack 6277 and the third driving rack 6278 always maintain a stable meshing state with each gear, improving the efficiency of adjusting the distance between the second upper pressing roller 624 and the lower pressing roller 622.

[0023] The cutting component 628 includes a mounting cross beam 6281, a cutter support 6282, a disk cutter 6283 and a support roller 6284. Both the left and right sides of the mounting cross beam 6281 are fixed to the sixth frame 621. The cutter support 6282 is fixed to the mounting cross beam 6281 and is adjustable in position along the left-right direction. The disk cutter 6283 is rotatably installed at the lower end of the cutter support 6282. The support roller 6284 is rotatably installed on the sixth frame 621 and corresponds to the lower side of the disk cutter 6283. The surface of the support roller 6284 is made of an elastic material. The cotton cloth conveying curtain 629 corresponds to the front side of the support roller 6284. The cutter support 6282, the disk cutter 6283 and the support roller 6284 are arranged in multiple groups along the left-right direction.

[0024] The multi-layer cotton web is conveyed forward by the support roller 6284 onto the cotton cloth conveying curtain 629. The disc cutter 6283 trims the edges of the cotton web or cuts the cotton web into multiple groups according to a certain width. The surface of the support roller 6284 is made of an elastic material, which can enable the disc cutter 6283 to fully cut the cotton web and avoid incomplete cutting.

[0025] The above does not impose any limitation on the technical scope of the present utility model. Any modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A web laying and slitting device, characterized in that: The invention comprises a web laying mechanism and a slitting mechanism, wherein the slitting mechanism is fixedly arranged at the front side of the web laying mechanism and connected with the conveying downstream of the web laying mechanism, the slitting mechanism comprises a sixth frame, a lower pressure roller, a first upper pressure roller, a second upper pressure roller, a sixth rotation drive assembly, a first synchronization assembly, a second synchronization assembly, a cutting assembly and a cotton cloth conveying curtain, the lower pressure roller is rotatably mounted on the sixth frame, the lower pressure roller is arranged in three groups in the horizontal direction and corresponds to the front side of the web laying mechanism, the first upper pressure roller and the second upper pressure roller are both fixed on the sixth frame and are adjustable in position in the vertical direction, the first upper pressure roller corresponds to the upper part of the two groups of lower pressure rollers on the rear side, the second upper pressure roller corresponds to the upper part of the two groups of lower pressure rollers on the front side, the sixth rotation drive assembly is fixed on the sixth frame and is drivingly connected to the lower pressure roller, the lower pressure roller is drivingly connected to the first upper pressure roller through the first synchronization assembly, and the lower pressure roller is drivingly connected to the second upper pressure roller through the second synchronization assembly; The first synchronization component includes a first driving gear, a second driving gear, a third driving gear, a first tension gear, a second tension gear, a tension swing rod, a compression spring and a first driving rack. The first driving gear, the second driving gear and the third driving gear are respectively fixed to the right end of the lower pressure roller in the middle, the right end of the lower pressure roller at the rear end and the right end of the first upper pressure roller. The lower end of the tension swing rod is hinged to the sixth frame. The rear end of the compression spring is fixed to the sixth frame, and the front end is fixed to the middle part of the tension swing rod. The first tension gear is rotatably mounted on the sixth frame and corresponds to the upper front side of the third driving gear. The second tension gear is rotatably mounted on the upper end of the tension swing rod and corresponds to the upper rear side of the third driving gear. The inner side of the first driving rack is meshed with the first driving gear, the second driving gear, the first tension gear and the second tension gear, and the outer front end of the first driving rack is meshed with the third driving gear.

2. A web laying and slitting device according to claim 1, characterized in that: The second synchronization component includes a fourth drive gear, a fifth drive gear, a sixth drive gear, a first fixed-distance swing rod, a second fixed-distance swing rod, a connecting gear, a second drive rack and a third drive rack. The fourth drive gear, the fifth drive gear and the sixth drive gear are respectively fixed to the left end of the lower pressure roller in the middle, the left end of the lower pressure roller at the front end, and the left end of the second upper pressure roller. The rear ends of the first fixed-distance swing rod and the second fixed-distance swing rod are hinged. The front ends of the first fixed-distance swing rod and the second fixed-distance swing rod are rotatably mounted on the left end of the lower pressure roller at the front end and the left end of the second upper pressure roller, respectively. The connecting gear is rotatably mounted on the rear end of the second fixed-distance swing rod. The rotating shaft at the hinge of the first fixed-distance swing rod and the second fixed-distance swing rod is coaxial with the rotating shaft of the connecting gear. The connecting gear is meshed with the sixth drive gear. The inner side of the second drive rack is meshed with the fourth drive gear and the fifth drive gear. The inner side of the third drive rack is meshed with the fifth drive gear and the connecting gear.

3. A web laying and slitting device according to claim 1, characterized in that: The cutting assembly includes a mounting crossbeam, a cutter bracket, a disc cutter and a supporting roller. The left and right sides of the mounting crossbeam are fixed on the sixth frame. The cutter bracket is fixed on the mounting crossbeam and can be adjusted in the left and right directions. The disc cutter is rotatably mounted on the lower end of the cutter bracket. The supporting roller is rotatably mounted on the sixth frame and corresponds to the bottom of the disc cutter. The surface of the supporting roller is made of elastic material. The cotton cloth conveying curtain corresponds to the front side of the supporting roller. The cutter bracket, the disc cutter and the supporting roller are arranged in multiple groups along the left and right directions.

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