CN221663249U - Non-woven fabric slitting device - Google Patents

Abstract

The utility model relates to the technical field of non-woven fabric processing equipment, and specifically to a non-woven fabric slitting device, characterized in that it comprises a mounting frame, an upper knife shaft and a lower knife shaft, the lower knife shaft has a driving force and is rotatably mounted on the mounting frame, a plurality of lower slitting knives are arranged on the lower knife shaft, the upper knife shaft is arranged on one side above the lower knife shaft, the upper knife shaft is rotatably and slidably connected with the mounting frame, a plurality of mounting rods are arranged on the upper knife shaft, a rotatable upper slitting knives are mounted on the free end of the mounting rod, the plurality of lower slitting knives and the plurality of upper slitting knives correspond to each other one by one, the mounting frame is provided with a sliding drive mechanism for driving the upper knife shaft to slide along its axial direction, and a swing drive mechanism for driving the upper knife shaft to rotate so that the mounting rod swings up and down. The overall structure of the utility model is practical and reliable, which is conducive to increasing the maintenance space between the upper slitting knives and the lower slitting knives, thereby facilitating the replacement or adjustment of the upper slitting knives and the lower slitting knives.

Description

Nonwoven fabric cutting device

Technical Field

The utility model relates to the technical field of non-woven fabric processing equipment, in particular to a non-woven fabric slitting device.

Background Art

Non-woven fabric is the main raw material of wet wipes. The non-woven fabric mother rolls purchased from the market are relatively large and need to be cut into rolls of desired width before use. Therefore, non-woven fabric generally requires corresponding slitting devices for slitting and cutting during the production and processing. The slitting device needs to maintain its internal knives after long-term use, and the knives also need to be repaired and replaced when damaged, or the position of the knives needs to be adjusted to adjust the slitting width of the non-woven fabric. The overall structure of the existing slitting device is usually compact, and in order to achieve slitting of the non-woven fabric, the upper slitting knife and the lower slitting knife are abutted against each other, which makes the maintenance space between the two small, and it is not convenient to change or adjust the knife in actual maintenance operations, so it needs further improvement.

Utility Model Content

The technical problem to be solved by the utility model is to provide a non-woven fabric slitting device with a practical and reliable overall structure, which is conducive to increasing the maintenance space between the upper slitting knife and the lower slitting knife, thereby facilitating the replacement or adjustment of the upper slitting knife and the lower slitting knife.

In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a non-woven fabric slitting device, comprising a mounting frame, an upper knife shaft and a lower knife shaft, the lower knife shaft has a driving force and is rotatably installed on the mounting frame, a plurality of lower slitting knives are installed on the lower knife shaft at intervals along its axial direction, the upper knife shaft is arranged on the upper side of the lower knife shaft, the upper knife shaft is rotatably and slidably connected to the mounting frame, a plurality of mounting rods are installed on the upper knife shaft at intervals along its axial direction, a rotatable upper slitting knife is installed on the free end of the mounting rod, the plurality of lower slitting knives correspond to the plurality of upper slitting knives one by one, the mounting frame is provided with a sliding drive mechanism for driving the upper knife shaft to slide along its axial direction, and a swinging drive mechanism is provided for driving the upper knife shaft to rotate so that the mounting rod swings up and down.

Furthermore, both ends of the lower knife shaft are rotatably connected to the mounting frame via a first bearing, and both ends of the upper knife shaft are rotatably and slidably connected to the mounting frame via a sliding bearing.

Furthermore, the sliding drive mechanism includes a sliding cylinder, which is fixedly mounted on a fixed seat, which is fixedly mounted on a mounting frame, and an end of a piston rod of the sliding cylinder is rotatably connected to one end of an upper cutter shaft.

Furthermore, a rotating sleeve is fixedly provided at one end of the upper cutter shaft, and the piston rod end of the sliding cylinder extends into the rotating sleeve and is rotatably connected to the rotating sleeve through a second bearing.

Furthermore, the swing drive mechanism includes a swing cylinder, a swing rod and a sliding sleeve. The cylinder body of the swing cylinder is hinged to the mounting frame, the piston rod end of the swing cylinder is hinged to one end of the swing rod, the other end of the swing rod is fixedly connected to the sliding sleeve, and the sliding sleeve can be slidably mounted on one end of the upper knife shaft and a clamping assembly is provided between the two.

Furthermore, the clamping assembly includes a clamping block and a clamping slot. The inner surface of the sleeve is provided with a clamping slot that runs through both ends thereof. The clamping block is fixedly mounted on the outer surface of the upper knife shaft. The clamping block is adapted to and clamped in the clamping slot and the two are slidably matched.

Furthermore, the upper cutting knife includes a knife seat, an annular blade, an annular elastic member, and an annular pressure plate. The knife seat is rotatably mounted on the fixed shaft through a third bearing. The fixed shaft is fixedly connected to the mounting rod. An annular limiting plate is fixedly provided at one end of the knife seat. An annular blade, an annular elastic member and an annular pressure plate are sequentially sleeved on one side of the annular limiting plate on the knife seat. The annular pressure plate is locked and connected to the annular limiting plate through a first fastener.

Furthermore, an upper mounting hole matched with the upper knife shaft is provided on the mounting rod, and the mounting rod is sleeved on the upper knife shaft through the upper mounting hole and is locked and fixed by a second fastener.

Furthermore, the lower slitting knife is provided with a lower mounting hole matched with the lower knife shaft, and the lower slitting knife is sleeved on the lower knife shaft through the lower mounting hole and is locked and fixed by a third fastener.

Furthermore, the number of the upper cutting knives and the number of the lower cutting knives are both 4-6.

From the above description, it can be seen that the overall structure of the non-woven fabric slitting device provided by the utility model is practical and reliable, and has the following beneficial effects: when the slitting device needs to be maintained or adjusted, after shutdown, the upper knife shaft can be driven by the sliding drive mechanism to slide to the side away from the lower slitting knife, so that the upper slitting knife slides to the side away from the lower slitting knife and staggered, and then the upper knife shaft is driven to rotate by the swing drive mechanism so that the mounting rod swings upward, thereby lifting the upper slitting knife upward and further increasing the distance between the upper slitting knife and the lower slitting knife. This is beneficial to increase the maintenance space between the upper slitting knife and the lower slitting knife, thereby facilitating the replacement or adjustment of the upper slitting knife and the lower slitting knife.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a nonwoven fabric slitting device of the present invention.

FIG. 2 is a partial enlarged schematic diagram of point A in FIG. 1 .

FIG3 is a schematic diagram of the partial structure of a nonwoven fabric slitting device of the present invention.

FIG. 4 is a left view of a nonwoven fabric slitting device according to the present invention.

FIG. 5 is a schematic diagram of the structure when the sliding sleeve is connected to the upper cutter shaft.

In the figure: 1-installation frame; 2-upper knife shaft; 21-sliding bearing; 3-lower knife shaft; 4-lower slitting knife; 51-installation rod; 52-fixed shaft; 6-upper slitting knife; 61-knife seat; 611-annular limit plate; 62-annular blade; 63-annular elastic member; 64-annular pressure plate; 7-sliding drive mechanism; 71-sliding cylinder; 72-fixed seat; 73-rotating sleeve; 8-swinging drive mechanism; 81-swinging cylinder; 82-swinging rod; 83-sliding sleeve; 84-clamping assembly; 841-clamping block; 842-clamping slot.

DETAILED DESCRIPTION

The present invention is further described below through specific implementation methods.

As shown in Figures 1 to 5, a non-woven fabric slitting device described in the utility model comprises a mounting frame 1, an upper knife shaft 2 and a lower knife shaft 3, the lower knife shaft 3 has a driving force and is rotatably mounted on the mounting frame 1, a plurality of lower cutting knives 4 are installed on the lower knife shaft 3 along its axial direction, the upper knife shaft 2 is arranged on the upper side of the lower knife shaft 3, the upper knife shaft 2 is rotatably and slidably connected to the mounting frame 1, a plurality of mounting rods 51 are installed on the upper knife shaft 2 along its axial direction, a rotatable upper cutting knife 6 is installed on the free end of the mounting rod 51, the plurality of lower cutting knives 4 and the plurality of upper cutting knives 6 correspond one to one, the mounting frame 1 is provided with a sliding drive mechanism 7 for driving the upper knife shaft 2 to slide along its axial direction, and a swing drive mechanism 8 is provided for driving the upper knife shaft 2 to rotate so that the mounting rod 51 swings up and down.

When the slitting device needs to be maintained or adjusted, after shutdown, the upper knife shaft 2 can be driven by the sliding drive mechanism 7 to slide toward the side away from the lower slitting knife 4, so that the upper slitting knife 6 slides toward the side away from the lower slitting knife 4 and staggered, and then the upper knife shaft 2 is driven by the swing drive mechanism 8 to rotate so that the mounting rod 51 swings upward, so that the upper slitting knife 6 is lifted upward and the distance between it and the lower slitting knife 4 is further increased. This is beneficial to increase the inspection space between the upper slitting knife 6 and the lower slitting knife 4, thereby facilitating the replacement or adjustment of the upper slitting knife 6 and the lower slitting knife 4.

Correspondingly, the slitting device further comprises a rotating motor, which is transmission-connected to one end of the lower knife shaft 3 via a belt transmission assembly, thereby driving the lower knife shaft 3 to rotate and providing the lower knife shaft 3 with a driving force.

Specifically, both ends of the lower knife shaft 3 are rotatably connected to the mounting frame 1 via a first bearing, and both ends of the upper knife shaft 2 are rotatably and slidably connected to the mounting frame 1 via a sliding bearing 21 .

Specifically, the sliding drive mechanism 7 includes a sliding cylinder 71, and the sliding cylinder 71 is fixedly mounted on a fixing seat 72, and the fixing seat 72 is fixedly mounted on the mounting frame 1. The end of the piston rod of the sliding cylinder 71 is rotatably connected to one end of the upper knife shaft 2. As a result, by controlling the extension and retraction of the piston rod of the sliding cylinder 71, the upper knife shaft 2 is conveniently driven to slide. Accordingly, a rotating sleeve 73 is fixedly provided at one end of the upper knife shaft 2. The end of the piston rod of the sliding cylinder 71 extends into the rotating sleeve 73 and is rotatably connected to the rotating sleeve 73 through a second bearing. This facilitates the rotational connection between the piston rod of the sliding cylinder 71 and the upper knife shaft 2. When the swing drive mechanism 8 drives the upper rotating shaft to rotate, the piston rod of the fixed sliding cylinder 71 will not affect the normal rotation of the upper rotating shaft.

Specifically, the swing drive mechanism 8 includes a swing cylinder 81, a swing rod 82 and a sleeve 83. The cylinder body of the swing cylinder 81 is hinged to the mounting frame 1, the piston rod end of the swing cylinder 81 is hinged to one end of the swing rod 82, and the other end of the swing rod 82 is fixedly connected to the sleeve 83. The sleeve 83 is slidably mounted on one end of the upper knife shaft 2 and a clamping assembly 84 is provided between the two. In this way, the relative sliding between the sleeve 83 and the upper knife shaft 2 can be ensured. At the same time, by controlling the extension and retraction of the piston rod of the swing cylinder 81, and through the linkage of the swing rod 82, and the clamping effect of the clamping assembly 84 on the sleeve 83 and the upper knife shaft 2, it is convenient to drive the upper knife shaft 2 to rotate.

Specifically, the clamping assembly 84 includes a clamping block 841 and a clamping groove 842. The inner surface of the sleeve 83 is provided with the clamping groove 842 running through both ends thereof. The clamping block 841 is fixedly mounted on the outer surface of the upper knife shaft 2. The clamping block 841 is adapted to and clamped in the clamping groove 842 and the two are slidably fitted together. In this way, it is easy to ensure the smooth sliding of the upper knife shaft 2 in the sleeve 83. At the same time, when the sleeve 83 rotates, it can also conveniently drive the upper knife shaft 2 to rotate.

Specifically, the upper slitting knife 6 includes a knife seat 61, an annular blade 62, an annular elastic member 63, and an annular pressure plate 64. The knife seat 61 is rotatably mounted on the fixed shaft 52 through a third bearing. The fixed shaft 52 is fixedly connected to the mounting rod 51. An annular limiting plate 611 is fixedly arranged at one end of the knife seat 61. The annular blade 62, the annular elastic member 63, and the annular pressure plate 64 are sequentially sleeved on one side of the annular limiting plate 611 on the knife seat 61. The annular pressure plate 64 is arranged through the third bearing. A fastener is locked and connected to the annular limit plate 611. Preferably, the annular elastic member 63 is made of elastic rubber material. When the upper slitting knife 6 abuts against the lower slitting knife 4, the elastic force applied by the annular elastic member 63 to the annular blade 62 toward the side of the lower slitting knife 4 can well maintain the stability of the abutment between the upper slitting knife 6 and the lower slitting knife 4. In addition, it is also convenient to replace the annular blade 62 by disassembling the annular pressure plate 64.

In addition, an upper mounting hole adapted to the upper knife shaft 2 is provided on the mounting rod 51. The mounting rod 51 is sleeved on the upper knife shaft 2 through the upper mounting hole and is locked and fixed by a second fastener. In this way, the stability of the connection between the mounting rod 51 and the upper knife shaft 2 is effectively ensured, while at the same time, it is convenient to loosen the second fastener to adjust the installation position of the mounting rod 51 on the upper knife shaft 2, thereby adjusting the installation position of the upper slitting knife 6.

In addition, the lower slitting knife 4 is provided with a lower mounting hole adapted to the lower knife shaft 3. The lower slitting knife 4 is sleeved on the lower knife shaft 3 through the lower mounting hole and is locked and fixed by a third fastener. In this way, the stability of the connection between the lower slitting knife 4 and the lower knife shaft 3 is effectively ensured, and at the same time, it is convenient to loosen the third fastener to adjust the installation position of the lower slitting knife 4 on the lower knife shaft 3.

Preferably, the number of the upper cutting knives 6 and the number of the lower cutting knives 4 are both 4-6.

The above are only some specific implementation methods of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims (10)

1. A device is cut to non-woven fabrics, its characterized in that: the cutter comprises a mounting frame, an upper cutter shaft and a lower cutter shaft, wherein the lower cutter shaft is provided with a driving force and is rotatably mounted on the mounting frame, a plurality of lower slitting knives are mounted on the lower cutter shaft along the axial direction of the lower cutter shaft at intervals, the upper cutter shaft is arranged on one side above the lower cutter shaft and is rotatably and slidably connected with the mounting frame, a plurality of mounting rods are mounted on the upper cutter shaft along the axial direction of the upper cutter shaft at intervals, the free end parts of the mounting rods are provided with rotatable upper slitting knives, a plurality of lower slitting knives and a plurality of upper slitting knives are in one-to-one correspondence, and the mounting frame is provided with a sliding driving mechanism for driving the upper cutter shaft to slide along the axial direction of the upper slitting knives and a swinging driving mechanism for driving the upper cutter shaft to swing up and down.

2. The nonwoven slitting device of claim 1, wherein: the two ends of the lower cutter shaft are rotationally connected with the mounting frame through first bearings, and the two ends of the upper cutter shaft are rotationally and slidingly connected with the mounting frame through sliding bearings.

3. The nonwoven slitting device of claim 1, wherein: the sliding driving mechanism comprises a sliding air cylinder, the sliding air cylinder is fixedly arranged on a fixed seat, the fixed seat is fixedly arranged on the mounting frame, and the end part of a piston rod of the sliding air cylinder is rotationally connected with one end of the upper cutter shaft.

4. A nonwoven slitting device according to claim 3, wherein: the end part of one end of the upper cutter shaft is fixedly provided with a rotating sleeve, and the end part of a piston rod of the sliding cylinder extends into the rotating sleeve and is rotationally connected with the rotating sleeve through a second bearing.

5. The nonwoven slitting device of claim 1, wherein: the swing driving mechanism comprises a swing cylinder, a swing rod and a sliding sleeve, wherein the cylinder body of the swing cylinder is hinged with the mounting frame, the end part of a piston rod of the swing cylinder is hinged with one end of the swing rod, the other end of the swing rod is fixedly connected with the sliding sleeve, the sliding sleeve is slidably sleeved on one end of the upper cutter shaft, and a clamping assembly is arranged between the sliding sleeve and the upper cutter shaft.

6. The nonwoven slitting device of claim 5, wherein: the clamping assembly comprises a clamping block and a clamping groove, the clamping grooves penetrating through two ends of the inner surface of the sliding sleeve are formed in the inner surface of the sliding sleeve, the clamping block is fixedly mounted on the outer surface of the upper cutter shaft, and the clamping block is matched with the clamping groove and clamped in the clamping groove in a sliding fit manner.

7. The nonwoven slitting device of claim 1, wherein: the upper slitting knife comprises a knife holder, an annular blade, an annular elastic piece and an annular pressing plate, wherein the knife holder is rotatably arranged on a fixed shaft through a third bearing, the fixed shaft is fixedly connected with the mounting rod, an annular limiting plate is fixedly arranged at one end of the knife holder, the annular blade is sequentially sleeved on one side of the annular limiting plate on the knife holder, the annular elastic piece and the annular pressing plate are in locking connection with the annular limiting plate through a first fastening piece.

8. The nonwoven slitting device of claim 1, wherein: the mounting rod is provided with an upper mounting hole matched with the upper cutter shaft, and is sleeved on the upper cutter shaft through the upper mounting hole and locked and fixed through a second fastener.

9. The nonwoven slitting device of claim 1, wherein: the lower cutter is provided with a lower mounting hole matched with the lower cutter shaft, and the lower cutter is sleeved on the lower cutter shaft through the lower mounting hole and locked and fixed through a third fastener.

10. The nonwoven slitting device of claim 1, wherein: the number of the upper dividing cutters and the lower dividing cutters is 4-6.