Leftover material recovery device for roll cutting of hygienic products

Abstract

The utility model discloses a leftover material recovery device for roll cutting of hygienic products, which belongs to the technical field of hygienic product processing equipment and comprises a roll cutting mechanism and a leftover material recovery mechanism, the roll cutting mechanism consists of a roll cutting roll and a support roll which are distributed up and down, and a roll cutting knife is arranged on the surface of the roll cutting roll. The hobbing cutters protrude from the surface of the hobbing roller, the protruding ends form cutting ends, and the surface of the supporting roller abuts against the cutting ends. The offcut recycling mechanism is arranged on one side of the roll cutting mechanism and is composed of a suction head and a negative pressure fan, the interior of the suction head is hollow and is provided with a suction opening facing the rolling cutter, and the air suction end of the negative pressure fan is communicated with the interior of the suction head; according to the offcut recycling device, offcut can be sucked and recycled immediately after offcut is generated in a hobbing mode, the offcut can be recycled efficiently, and normal operation of a hygienic product processing production line is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to sanitary product processing equipment technical field, concretely relates to a kind of edge material recovery device for sanitary product roll cutting. BACKGROUND

[0002] Sanitary products such as paper diapers, pull-ups, etc. usually need to be cut to make the material on both sides inwardly concave during production, so that the leg circumference structure is formed at the concave part on both sides of the finally fixed and formed sanitary product. The material will form edge material after being cut and needs to be separated from the main body of the sanitary product to avoid affecting the normal progress of subsequent processes. At present, the cutting equipment of some sanitary products cuts the material to form edge material, and the edge material will fall into the container at the bottom of the equipment. However, sanitary products are mainly made of non-woven fabric, and the edge material obtained by cutting is relatively light in weight and easy to be pulled out of the fiber filament during cutting. The edge material will not fall in a straight line to the outside of the container, or the edge material will be connected by the fiber filament in some components of the cutting equipment, which may affect the normal operation of the cutting equipment.

[0003] Based on the above situation, the Chinese patent with publication number CN215881898U discloses an arc-shaped cutting device for paper diaper production, which includes a rack and a conveying mechanism. A first cutting roller and a second cutting roller are rotatably arranged on the rack. A driving mechanism is arranged on the rack to drive the first cutting roller and the second cutting roller to rotate synchronously. Convex knife molds are arranged on both sides of the first cutting roller. Concave knife molds are arranged on both sides of the second cutting roller and are used in cooperation with the convex knife molds. The second cutting roller has a hollow structure, and air holes are formed on both sides of the second cutting roller. The air holes communicate the inside and outside of the second cutting roller. A sleeve is connected to the second cutting roller, and the sleeve is fixed to the rack. Air grooves are formed on the upper and lower sides of the sleeve. A horizontal partition is fixed in the sleeve, and a fan is arranged through the partition. A waste box is arranged below the second cutting roller.

[0004] The above cutting device cuts the paper diaper raw material through the cooperation of the first cutting roller and the second cutting roller. The arc-shaped knife molds make the paper diaper raw material cut into an arc-shaped leg circumference structure. The edge material of the cut paper diaper raw material is adsorbed by the negative pressure generated by the fan on the surface of the second cutting roller. After half a rotation of the second cutting roller, the edge material is pushed into the waste box by the positive pressure. However, the sleeve inside the second cutting roller does not rotate. When the second cutting roller rotates and the air holes and the air grooves are not opposite, the airflow inside the second cutting roller will be disturbed. It is difficult for the air holes to continuously maintain negative pressure to continuously adsorb the edge material until the second cutting roller rotates half a circle. Before the second cutting roller rotates half a circle, the air holes may change to positive pressure to push the adsorbed edge material, so the edge material will not fall into the waste box. Therefore, there is still room for improvement in the above cutting device. SUMMARY

[0005] The utility model proposes a kind of edge material recovery device for sanitary product roll cutting for the technical defects in the background art, solve the above-mentioned technical problems and meet actual demand, and the specific technical scheme is as follows:

[0006] An edge material recovery device for sanitary product roll cutting, comprising roll cutting mechanism, edge material recovery mechanism, the roll cutting mechanism is composed of upper and lower distribution's roll cutting roller and support roller, the roll cutting roller surface is equipped with roll cutting knife, the roll cutting knife is protruded from the roll cutting roller surface and the end of protrusion forms cutting end, the support roller surface is in abutment with cutting end;

[0007] The edge material recovery mechanism is located at one side of roll cutting mechanism, and the edge material recovery mechanism is composed of suction head and negative pressure fan, the suction head is hollow inside and is provided with a suction port facing the roll cutting knife, and the suction end of the negative pressure fan is in communication with the inside of the suction head.

[0008] As a further technical scheme of the utility model, the suction head and the negative pressure fan are provided with an edge material conveying pipe therebetween, and the end of the edge material conveying pipe is provided with an edge material recovery bin which is hollow inside.

[0009] As a further technical scheme of the utility model, the roll cutting knife is provided with two and is arranged at the two ends of the roll cutting roller respectively, and the shape of any roll cutting knife is arc-shaped with the arc top facing the other roll cutting knife.

[0010] As a further technical scheme of the utility model, the suction head is provided with two and is close to the two ends of the roll cutting roller respectively, and the suction ports of the two suction heads face the two roll cutting knives respectively.

[0011] As a further technical scheme of the utility model, the roll cutting knife is connected head to tail and is arranged at the center of the roll cutting roller.

[0012] As a further technical scheme of the utility model, the roll cutting mechanism is provided with a material guide roller on the side away from the edge material recovery mechanism, and the two ends of the material guide roller are both provided with a conveying sleeve.

[0013] As a further technical scheme of the utility model, the material guide roller is provided with two flattening rollers on the side away from the roll cutting mechanism.

[0014] As a further technical scheme of the utility model, the edge material recovery mechanism is provided with a material guide-out roller and a tension maintaining roller above.

[0015] The utility model has the beneficial effects that:

[0016] The utility model discloses a kind of edge material recycling devices for sanitary product roll cutting, which can immediately suck and recycle the edge material after roll cutting, avoid the edge material adhering to sanitary products or other processing equipment, efficiently recycle the edge material and ensure the normal operation of sanitary product processing production line. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a kind of plane schematic view for sanitary product roll cutting's edge material recycling device.

[0018] Figure 2 It is a kind of perspective view for sanitary product roll cutting's edge material recycling device.

[0019] Figure 3 It is another angle perspective view for sanitary product roll cutting's edge material recycling device.

[0020] Figure 4 It is a kind of perspective view for the second embodiment of sanitary product roll cutting's edge material recycling device.

[0021] Wherein: 1-rolling cutting mechanism, 11-rolling cutting roller, 12-supporting roller, 13-rolling cutting knife, 2-edge material recycling mechanism, 21-suction head, 22-negative pressure fan, 23-suction port, 24-edge material conveying pipe, 25-edge material recycling bin, 3-material introduction roller, 31-conveying sleeve, 4-flattening roller, 5-material export roller, 6-tension maintaining roller, 7-layer structure. DETAILED DESCRIPTION

[0022] The embodiments of the utility model will be described below in conjunction with the drawings and related examples, and the embodiments of the utility model are not limited to the following examples, and the utility model relates to the necessary components in the related technical field, which should be regarded as the known technology in the technical field and can be known and mastered by the technical personnel in the technical field.

[0023] As Figure 1As shown, a kind of edge material recovery device for sanitary product roll cutting, including roll cutting mechanism 1, edge material recovery mechanism 2, roll cutting mechanism 1 is formed by the upper and lower distribution of roll cutting roller 11 and support roller 12, and roll cutting knife 13 is arranged on the surface of roll cutting roller 11, and the end of roll cutting knife 13 is formed cutting end from the surface of roll cutting roller 11, and the surface of support roller 12 is in contact with cutting end;Edge material recovery mechanism 2 is arranged on one side of roll cutting mechanism 1, and edge material recovery mechanism 2 is formed by suction head 21 and negative pressure fan 22, and suction head 21 is hollow and is provided with suction port 23 towards roll cutting knife 13, and the suction end of negative pressure fan 22 is communicated with the inside of suction head 21.

[0024] The utility model discloses a cutting and recycling the edge material of sanitary product, and the sanitary product is combined into layered structure 7 by non-woven fabric and core body, and then is cut by roll cutting mechanism 1 to form arc-shaped notch, and the arc-shaped notch is used as the leg circumference structure of sanitary product, so that the sanitary product forms the structure of trousers and is worn, and the leg circumference structure is wrapped around the thigh of human body;In roll cutting mechanism 1, roll cutting roller 11 and support roller 12 are transported to the side of edge material recovery mechanism 2 by rotating in opposite directions, and the layered structure 7 is cut by the contact between the cutting end of roll cutting knife 13 and the surface of support roller 12 during the transportation process.

[0025] Further, edge material recovery mechanism 2 is located below the side of layered structure 7 away from roll cutting mechanism 1, and suction head 21 extends from bottom to top and makes suction port 23 towards roll cutting knife 13, so that the edge material generated after the rolling of layered structure 7 is opposite to suction port 23, and negative pressure fan 22 generates negative pressure suction force in suction port 23 when working, and the edge material is sucked into the inside of suction head 21;Layered structure 7 is usually composed of continuous non-woven fabric and core body, and roll cutting roller 11 is cut at least once for layered structure 7 every rotation, and the connection, transportation and cutting of layered structure 7 by roll cutting mechanism 1 form several arc-shaped notches on the surface of layered structure 7, and the edge material formed after each cutting is sucked by edge material recovery mechanism 2, and the edge material is recycled after being collected.

[0026] As Figures 1-3As shown, after adopting the above structure, it needs to be further explained that the suction head 21 and the negative pressure fan 22 are provided with a side material conveying pipe 24, the end of the side material conveying pipe 24 is provided with a side material recovery bin 25 which is internally hollow, the negative pressure fan 22 works to generate negative pressure in the suction head 21 and the side material conveying pipe 24, the negative pressure can suck the side material and convey it to the side material recovery bin 25 along the side material conveying pipe 24, the side material recovery bin 25 is used to collect the side material obtained by cutting for recycling, avoiding the side material from falling in the processing workshop to affect the normal operation of other equipment; in addition, the negative pressure fan 22 can suck the side material through the intermittent work of the motor, the working frequency of the motor is consistent with the frequency of cutting the side material, so that the side material generated after each cutting is sucked away by the side material recovery mechanism 2, and the working time of the negative pressure fan 22 can be reduced, and the energy consumption can be reduced.

[0027] As shown in the drawings, Figures 1-3 As one of the preferred embodiments of the utility model, the roll cutter 13 is provided with two and is arranged at both ends of the roll cutting roller 11, the shape of any roll cutter 13 is arc-shaped with the arc top facing the other roll cutter 13, when the roll cutter 13 adopts the above structure, the roll cutting mechanism 1 is usually used for processing the paper diaper, in the roll cutting process, the cutting end of the roll cutter 13 contacts the surface of the supporting roller 12 in an arc-shaped path, the two arc-shaped roll cutters 13 arranged at both ends of the roll cutting roller 11 can form relatively inwardly recessed arc-shaped notches on both sides of the layered structure 7 through roll cutting, and after the layered structure 7 is cut in the subsequent process, every two opposite arc-shaped notches serve as the leg circumference structure of the same paper diaper; in addition, every two opposite roll cutters 13 serve as a group of roll cutters, the surface of the roll cutting roller 11 can be provided with two or more groups of roll cutters, and the surface of the layered structure 7 can form two or more leg circumference structures after one rotation of the roll cutting roller 11.

[0028] Further, the suction head 21 is provided with two and is arranged near both ends of the roll cutting roller 11, the suction ports 23 of the two suction heads 21 face the two roll cutters 13 respectively, the roll cutting roller 11 cuts the layered structure 7 through the two roll cutters 13 every time to generate two pieces of side material, and the two pieces of side material are generated near both ends of the roll cutting roller 11 respectively, it is difficult to suck the side material through one suction head 21, the two suction heads 21 near both ends of the roll cutting roller 11 suck the two pieces of side material generated during cutting respectively, which can make the position of the suction head 21 closer to the roll cutting roller 11 without affecting the conveying of the layered structure, and improve the efficiency of the side material recovery mechanism 2 in sucking the side material.

[0029] As shown in the drawings, Figure 1 , 4As shown in the second preferred embodiment of the roll cutting knife 13 of the utility model, the roll cutting knife 13 is connected at the head and tail and arranged in the center of the roll cutting roller 11, when the roll cutting knife 13 adopts the above structure, the roll cutting mechanism 1 is usually used for processing the pull-on diaper, in the roll cutting process, the cutting end of the roll cutting knife 13 is similar to a circular shape in contact with the surface of the supporting roller 12, the roll cutting knife 13 can form a plurality of circular notches in the center of the layered structure 7 through roll cutting, in the slitting process of the subsequent process, the layered structure 7 is slit along the center of each circular notch in the width direction, so that the slit layered structure 7 forms notches with arc shape and inwardly recessed on both sides, as the leg structure of the pull-on diaper, this method is beneficial to the elastic spandex filament arranged on both sides of the layered structure 7 in the width direction during the production of the pull-on diaper; in addition, two or more roll cutting knives 13 can be arranged on the surface of the roll cutting roller 11, and two or more groups of circular notches can be formed on the surface of the layered structure 7 through one rotation of the roll cutting roller 11.

[0030] As shown in the second preferred embodiment of the roll cutting knife 13 of the utility model, the roll cutting knife 13 is connected at the head and tail and arranged in the center of the roll cutting roller 11, when the roll cutting knife 13 adopts the above structure, the roll cutting mechanism 1 is usually used for processing the pull-on diaper, in the roll cutting process, the cutting end of the roll cutting knife 13 is similar to a circular shape in contact with the surface of the supporting roller 12, the roll cutting knife 13 can form a plurality of circular notches in the center of the layered structure 7 through roll cutting, in the slitting process of the subsequent process, the layered structure 7 is slit along the center of each circular notch in the width direction, so that the slit layered structure 7 forms notches with arc shape and inwardly recessed on both sides, as the leg structure of the pull-on diaper, this method is beneficial to the elastic spandex filament arranged on both sides of the layered structure 7 in the width direction during the production of the pull-on diaper; in addition, two or more roll cutting knives 13 can be arranged on the surface of the roll cutting roller 11, and two or more groups of circular notches can be formed on the surface of the layered structure 7 through one rotation of the roll cutting roller 11. Figures 1-4 As shown in the second preferred embodiment of the roll cutting knife 13 of the utility model, the roll cutting knife 13 is connected at the head and tail and arranged in the center of the roll cutting roller 11, when the roll cutting knife 13 adopts the above structure, the roll cutting mechanism 1 is usually used for processing the pull-on diaper, in the roll cutting process, the cutting end of the roll cutting knife 13 is similar to a circular shape in contact with the surface of the supporting roller 12, the roll cutting knife 13 can form a plurality of circular notches in the center of the layered structure 7 through roll cutting, in the slitting process of the subsequent process, the layered structure 7 is slit along the center of each circular notch in the width direction, so that the slit layered structure 7 forms notches with arc shape and inwardly recessed on both sides, as the leg structure of the pull-on diaper, this method is beneficial to the elastic spandex filament arranged on both sides of the layered structure 7 in the width direction during the production of the pull-on diaper; in addition, two or more roll cutting knives 13 can be arranged on the surface of the roll cutting roller 11, and two or more groups of circular notches can be formed on the surface of the layered structure 7 through one rotation of the roll cutting roller 11.

[0031] Further, the two conveying sleeves 31 are arranged at the two ends of the material feeding roller 3, the conveying sleeves 31 abut against and convey the layered structure 7 on both sides in the width direction, since the core material in the layered structure 7 is arranged in the center, this structure can avoid the pressure of the conveying sleeves 31 and the supporting roller 12 on the core material, and ensure the structural stability of the core material in the sanitary product.

[0032] As shown in the second preferred embodiment of the roll cutting knife 13 of the utility model, the roll cutting knife 13 is connected at the head and tail and arranged in the center of the roll cutting roller 11, when the roll cutting knife 13 adopts the above structure, the roll cutting mechanism 1 is usually used for processing the pull-on diaper, in the roll cutting process, the cutting end of the roll cutting knife 13 is similar to a circular shape in contact with the surface of the supporting roller 12, the roll cutting knife 13 can form a plurality of circular notches in the center of the layered structure 7 through roll cutting, in the slitting process of the subsequent process, the layered structure 7 is slit along the center of each circular notch in the width direction, so that the slit layered structure 7 forms notches with arc shape and inwardly recessed on both sides, as the leg structure of the pull-on diaper, this method is beneficial to the elastic spandex filament arranged on both sides of the layered structure 7 in the width direction during the production of the pull-on diaper; in addition, two or more roll cutting knives 13 can be arranged on the surface of the roll cutting roller 11, and two or more groups of circular notches can be formed on the surface of the layered structure 7 through one rotation of the roll cutting roller 11. Figures 1-4 As shown in the second preferred embodiment of the roll cutting knife 13 of the utility model, the roll cutting knife 13 is connected at the head and tail and arranged in the center of the roll cutting roller 11, when the roll cutting knife 13 adopts the above structure, the roll cutting mechanism 1 is usually used for processing the pull-on diaper, in the roll cutting process, the cutting end of the roll cutting knife 13 is similar to a circular shape in contact with the surface of the supporting roller 12, the roll cutting knife 13 can form a plurality of circular notches in the center of the layered structure 7 through roll cutting, in the slitting process of the subsequent process, the layered structure 7 is slit along the center of each circular notch in the width direction, so that the slit layered structure 7 forms notches with arc shape and inwardly recessed on both sides, as the leg structure of the pull-on diaper, this method is beneficial to the elastic spandex filament arranged on both sides of the layered structure 7 in the width direction during the production of the pull-on diaper; in addition, two or more roll cutting knives 13 can be arranged on the surface of the roll cutting roller 11, and two or more groups of circular notches can be formed on the surface of the layered structure 7 through one rotation of the roll cutting roller 11.

[0033] AsFigures 1-4 As shown, as one of the preferred embodiments of the utility model, the material guiding-out roller 5 and the tension maintaining roller 6 are arranged above the edge material recycling mechanism 2, the tension maintaining roller 6 and the material guiding-out roller 5 are arranged in an up-down distribution, the material guiding-out roller 5 and the tension maintaining roller 6 convey the cut layered structure 7 by rotating in opposite directions and abutting against the two sides of the layered structure 7 respectively, the tension maintaining roller 6 is provided with two and is located at the two ends of the material guiding-out roller 5 respectively, so as to avoid that the core material inside the layered structure 7 is pressed by the tension maintaining roller 6 and the material guiding-out roller 5 in the conveying process, and ensure the structural stability of the core material inside the sanitary product.

[0034] Further, the upper surfaces of the supporting rollers 12 are located at a high position of the conveying of the layered structure 7, that is, the horizontal heights of the upper surfaces of the supporting rollers 12 are all higher than the horizontal heights of the lower surface of the conveying sleeve 31 and the lower surface of the tension maintaining roller 6, the layered structure 7 is conveyed along the lower surface of the conveying sleeve 31, the upper surface of the supporting roller 12 and the lower surface of the tension maintaining roller 6 in turn, so that the layered structure 7 can keep the tension stable and tightly adhere to the upper surface of the supporting roller 12 when entering and leaving the roller cutting mechanism 1, thereby enabling the rolling cutting roller 11 to smoothly cut the layered structure 7.

[0035] It should be noted that the rolling cutting roller 11, the supporting roller 12, the material guiding-in roller 3, the material guiding-out roller 5 and the tension maintaining roller 6 are all driven to rotate by the motor, or are driven by the same motor and cooperated with the transmission structure such as gear to realize synchronous rotation, which is a common means in the field and will not be described here.

[0036] In summary, the material for manufacturing the sanitary product is conveyed by the rolling cutting roller 11 and the supporting roller 12 at the same time, and the sanitary product is processed into a shape similar to underpants by rolling cutting, the position of the edge material generated after rolling cutting is opposite to the suction port 23 of the suction head 21, the negative pressure suction force is generated in the suction port 23 when the negative pressure fan 22 works, so that the edge material is sucked into the inside of the suction head 21, the edge material is conveyed into the inside of the edge material recycling bin 25 through the edge material conveying pipe 24, the edge material can be sucked and recycled immediately after the rolling cutting, so as to avoid that the edge material adheres to the sanitary product or other processing equipment, the edge material is recycled efficiently, and the normal operation of the sanitary product processing production line is ensured.

[0037] The above only describes the preferred embodiments of the utility model, and it should be noted that some improvements and decorations can be made by the ordinary skilled in the art without departing from the principles of the utility model, and these improvements and decorations should also be regarded as the protection scope of the utility model.

Claims

1. A device for edge roll recovery of sanitary product roll cutting, comprising a roll cutting mechanism (1), an edge roll recovery mechanism (2), characterized in that, The roller cutting mechanism (1) is composed of upper and lower distribution of the cutting roller (11) and the supporting roller (12), the surface of the cutting roller (11) is provided with the cutting knife (13), the cutting knife (13) is protruded from the surface of the cutting roller (11) and the end of the protrusion forms the cutting end, the surface of the supporting roller (12) is in abutment with the cutting end; The edge material recycling mechanism (2) is arranged on one side of the roller cutting mechanism (1), the edge material recycling mechanism (2) is composed of the suction head (21) and the negative pressure fan (22), the suction head (21) is hollow and provided with the suction port (23) facing the cutting knife (13), the suction end of the negative pressure fan (22) is communicated with the inside of the suction head (21).

2. The offcut recovery apparatus for roll cutting of sanitary articles according to claim 1, characterized in that, The suction head (21) and the negative pressure fan (22) are provided with the edge material conveying pipe (24), the end of the edge material conveying pipe (24) is provided with the edge material recycling bin (25) which is hollow.

3. The offcut recovery apparatus for roll cutting of sanitary articles according to claim 1, characterized in that, The cutting knife (13) is provided with two and is arranged at the two ends of the cutting roller (11), the shape of any cutting knife (13) is arc-shaped with the arc top facing the other cutting knife (13).

4. The offcut recovery apparatus for roll cutting of sanitary articles according to claim 3, characterized in that, The suction head (21) is provided with two and is arranged near the two ends of the cutting roller (11), the suction ports (23) of the two suction heads (21) are respectively facing the two cutting knives (13).

5. The offcut recovery apparatus for roll cutting of sanitary articles according to claim 1, characterized in that, The cutting knife (13) is connected head to tail and is arranged at the center of the cutting roller (11).

6. The offcut recovery apparatus for roll cutting of sanitary articles according to claim 1, characterized in that, The roller cutting mechanism (1) is provided with the material guide roller (3) away from the edge material recycling mechanism (2) on one side, the two ends of the material guide roller (3) are both provided with the conveying sleeve (31).

7. The offcut recovery apparatus for roll cutting of sanitary articles according to claim 6, characterized in that, The material guide roller (3) is provided with two flattening rollers (4) away from the roller cutting mechanism (1) on one side.

8. The offcut recovery apparatus for roll cutting of sanitary articles according to claim 1, characterized in that, The edge material recycling mechanism (2) is provided with the material guide roller (5) and the tension maintaining roller (6) above.

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