CN211658511U

CN211658511U - Absorbent article folding device

Info

Publication number: CN211658511U
Application number: CN201922447633.8U
Authority: CN
Inventors: 方安江; 龚志龙; 李大柱
Original assignee: Huangshan Futian Precision Manufacturing Co Ltd
Current assignee: Huangshan Futian Precision Manufacturing Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-13
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses an absorptive article folding device, which is provided with a frame, a first gear, a second gear, a first connecting rod, a second connecting rod, a linear guide rail pair, a sliding block and a plug board; the slider sets up on linear guide is vice, first gear and second gear intermeshing, and first connecting rod and first gear are in order to turn round pair hookup, and the second connecting rod is in order to turn round pair hookup with the second gear, and the one end that first gear was kept away from to first connecting rod and the one end that the second gear was kept away from to the second connecting rod are in order to turn round pair to be connected on the slider, the picture peg is fixed on the slider. The utility model adopts the design scheme of a gear-five-rod mechanism to realize the expected linear reciprocating linear motion so as to realize the insertion type folding action of the product; the device is designed symmetrically, so that the device has good dynamic balance characteristic and is suitable for high-speed production working conditions; meanwhile, the device has the advantages of small structure and good rigidity.

Description

Absorbent article folding device

Technical Field

The utility model belongs to health supplies packing manufacturing installation field especially relates to an absorptive article folding device.

Background

The absorbent articles such as sanitary napkins, panty liners, incontinence pads and the like mainly comprise a liquid-permeable surface layer used in contact with the skin, a liquid-impermeable bottom layer used in non-contact with the skin, an absorbent core layer between the liquid-permeable surface layer and the liquid-impermeable bottom layer, and structural layers such as two side protective wings. Absorbent articles are generally designed to be folded into a single package in a prescribed number of folds such as two-fold, or three-fold, and heat-sealed or adhesively sealed around the single package, thus achieving the purpose of facilitating individual carrying and use by a user.

For example, chinese patent application No. 201580080156.8 discloses a folding method and a folding device for an absorbent article, in which a pair of rotating members 61 and 62 of a folding device 60 rotate synchronously with each other to fold the absorbent article in half, and although this structure can achieve folding of the product, it is commonly applied to a sanitary product having a large width direction, such as a folding station for a diaper product. Also disclosed in chinese patent application No. 2014208081712 is an absorbent article package fold forming apparatus having a folding planetary fold drum unit comprising: the automatic feeding device comprises a servo motor, a motor output wheel and a fixed wheel, wherein the servo motor drives the motor output wheel to rotate, the motor output wheel drives a planet drum folding input wheel on one side to rotate synchronously through a conveying body, the planet drum folding input wheel and the fixed wheel are respectively arranged at two ends of a revolution support and are simultaneously connected with the revolution support shaft, the fixed wheel drives a planet wheel on one side to rotate synchronously through the conveying body, a planet wheel rotating shaft connected with the planet wheel rotating shaft is arranged on the planet wheel, and one end of a planet inserting piece is fixed on the planet wheel rotating shaft. Although the absorbent article can not be dislocated when being folded through the special planet structure of the planet folding drum in the patent, and the folding error is small, the problem that the product is taken out and the production is unstable can occur under the working condition of more than 600ppm/min due to the adoption of the hypocycloid mechanism principle in the structure. In addition, the mechanism has the problems of poor dynamic balance characteristic at high speed, large occupied space, difficult adjustment and the like.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems, the utility model provides an absorptive article folding device solves the above-mentioned problem that traditional device exists, and has good dynamic balance nature, can satisfy high-speed production operating mode.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: an absorbent article folding device, the absorbent article having a longitudinal direction, a width direction, and a thickness direction, the absorbent article having a first region between a bend line extending in the width direction of the absorbent article and one end portion in the longitudinal direction of the absorbent article, and a second region between the bend line and the other end portion in the longitudinal direction of the absorbent article; the absorbent article is folded in the longitudinal direction at the fold line in such a manner that the first region and the second region are superposed.

The absorptive article folding device comprises a frame, a first gear, a second gear, a first connecting rod, a second connecting rod, a linear guide rail pair, a sliding block and an inserting plate. The first gear, the second gear and the linear guide rail pair are installed on the rack, the sliding block is arranged on the linear guide rail pair and can slide along the linear guide rail pair, the first gear is meshed with the second gear, the first connecting rod is connected with the first gear in a rotation pair mode, the second connecting rod is connected with the second gear in a rotation pair mode, one end, far away from the first gear, of the first connecting rod and one end, far away from the second gear, of the second connecting rod are connected onto the sliding block in a rotation pair mode, and the inserting plate is fixed onto the sliding block. When the folding device operates, one gear drives the other gear to rotate, so that the first connecting rod and the second connecting rod are driven to do plane motion, and then the first connecting rod and the second connecting rod jointly drive the sliding block on the linear guide rail pair, so that the sliding block drives the inserting plate to do linear reciprocating motion, and the inserting and returning actions of the inserting plate are realized.

Furthermore, the first gear and the second gear have the same number of teeth and the same size; the driving motor drives the first gear or the second gear to rotate.

Further, the first connecting rod and the second connecting rod are equal in length. The straight line of the reciprocating movement of the slide block is perpendicular to the connecting line of the rotating centers of the first gear and the second gear and passes through the midpoint of the connecting line of the rotating centers of the first gear and the second gear. The first gear and the second gear jointly form a gear pair, and when the gear pair rotates for a circle, one folding action is completed.

Compared with the prior art, the utility model, have following advantage:

the utility model adopts the design scheme of a gear-five-rod mechanism, and realizes the expected linear reciprocating linear motion through the specific ratio of the tooth number and the rod length so as to realize the insertion type folding action of the product; the device is designed symmetrically, so that the device has good dynamic balance characteristic and is suitable for high-speed production working conditions; meanwhile, the device also has the advantages of small structure and good rigidity.

Drawings

Fig. 1(a) is a developed view of an absorbent article, and (b) is a sectional view of the absorbent article.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a usage state diagram of the present invention.

Detailed Description

The present invention will be described with reference to the drawings and the detailed description.

In the embodiment of the method, the first step,

referring to fig. 1(a) and (b), an absorbent article 101 to be folded has a longitudinal direction 11, a width direction 12, and a thickness direction 13, and has a first region 14 and a second region 15, the first region 14 being located between a bending line L extending in the width direction 12 of the absorbent article and one end 16 in the longitudinal direction of the absorbent article, and the second region 15 being located between the bending line L and the other end 17 in the longitudinal direction of the absorbent article. The absorbent article is folded in the longitudinal direction at the fold line L in such a way that the first region 14 and the second region 15 overlap. It is noted that fig. 1 illustrates a specific embodiment of an absorbent article, and it should not be understood that the folding device is only suitable for use in the product illustrated in the figures.

As shown in fig. 2, an absorbent article folding apparatus 102 includes: the mechanism comprises a rack, a first gear 2, a second gear 3, a first connecting rod 4, a second connecting rod 5, a linear guide rail pair 6, a sliding block 7 and an inserting plate 1.

The first gear 2, the second gear 3 and the linear guide rail pair 6 are installed on the rack, the first gear 2 and the second gear 3 are meshed with each other, and the number of teeth of the first gear 2 and the number of teeth of the second gear 3 are equal and the size of the teeth of the first gear 2 and the second gear 3 are the same.

The first link 4 and the second link 5 are equal in length. The first connecting rod 4 is connected with the first gear 2 through a rotary pair, the second connecting rod 5 is connected with the second gear 3 through a rotary pair, one end of the first connecting rod 4, far away from the first gear 2, and one end of the second connecting rod 5, far away from the second gear 3, are connected onto the sliding block 7 through a rotary pair, and the inserting plate 1 is fixed onto the sliding block 7.

The slide block 7 is arranged on the linear guide rail pair 6 and can slide along the direction of the linear guide rail pair 6. The straight line L1 for the slider 7 to reciprocate is perpendicular to the connecting line L2 of the rotation centers of the first gear 2 and the second gear 3 and passes through the middle point of the connecting line of the rotation centers of the first gear 2 and the second gear 3. The first gear 2 and the second gear 3 jointly form a gear pair, and when the gear pair rotates for a circle, one folding action is completed.

When the folding device operates, the first gear drives the second gear to rotate, so as to drive the first connecting rod and the second connecting rod to do plane motion, and then the first connecting rod and the second connecting rod jointly drive the sliding block on the linear guide rail pair, so that the sliding block drives the plugboard to do linear reciprocating motion, and the insertion and return actions of the plugboard are realized.

As shown in fig. 3, an absorbent article folding system includes a folding front drive unit 103, a folding back upper drive unit 104, a folding back lower drive unit 105, and the folding device 102. The front folding drive unit 103 and the upper folding drive unit 104 cooperate to transport the unfolded absorbent article in the downstream direction, and the absorbent article is folded in the longitudinal direction at the folding line L so that the first region 14 and the second region 15 overlap each other by the insert plate of the folding device 102, and transported in the downstream direction by the cooperation of the upper folding drive unit 104 and the lower folding drive unit 105.

The specific structure of the folded front driving unit 103, the folded upper driving unit 104 and the folded lower driving unit 105 can be implemented by using a belt wheel and a conveyer belt commonly used in the art.

The straight reciprocating motion line of the insert plate of the folding device 102 coincides with the conveyance path between the folded upper drive unit 104 and the folded lower drive unit 105.

The above description and the drawings only show the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can appreciate that the technical solutions and the inventive concepts of the present invention can be equally replaced or changed within the technical scope of the present invention.

Claims

1. An absorbent article folding device, the absorbent article having a longitudinal direction, a width direction, and a thickness direction, the absorbent article having a first region between a bend line extending in the width direction of the absorbent article and one end portion in the longitudinal direction of the absorbent article, and a second region between the bend line and the other end portion in the longitudinal direction of the absorbent article; the absorbent article is folded in the longitudinal direction at the fold line in such a manner that the first region and the second region are superposed; the method is characterized in that:

the folding device has: the device comprises a rack, a first gear, a second gear, a first connecting rod, a second connecting rod, a linear guide rail pair, a sliding block and an inserting plate; the first gear, the second gear and the linear guide rail pair are mounted on the rack, the sliding block is arranged on the linear guide rail pair and can slide along the direction of the linear guide rail pair, the first gear is meshed with the second gear, the first connecting rod is connected with the first gear through a rotary pair, the second connecting rod is connected with the second gear through a rotary pair, one end of the first connecting rod, far away from the first gear, and one end of the second connecting rod, far away from the second gear, are connected onto the sliding block through a rotary pair, and the inserting plate is fixed onto the sliding block;

when the folding device operates, one gear drives the other gear to rotate, so that the first connecting rod and the second connecting rod are driven to do plane motion, and then the first connecting rod and the second connecting rod jointly drive the sliding block on the linear guide rail pair, so that the sliding block drives the inserting plate to do linear reciprocating motion.

2. The absorbent article folding device according to claim 1, characterized in that: the first gear and the second gear are equal in tooth number and size.

3. The absorbent article folding device according to claim 1, characterized in that: the driving motor is in transmission connection with the first gear or the second gear.

4. The absorbent article folding device according to claim 1, characterized in that: the first connecting rod and the second connecting rod are equal in length.

5. The absorbent article folding device according to any one of claims 1 to 4, characterized in that: the straight line of the reciprocating movement of the sliding block is perpendicular to the connecting line of the rotating centers of the first gear and the second gear and passes through the midpoint of the connecting line of the rotating centers of the first gear and the second gear.

6. The absorbent article folding apparatus according to claim 5, characterized in that: and the first gear or the second gear rotates for one circle to finish one folding action.