Disposable intimate-fitting sanitary trousers leg cuff sponge strip application mechanism and production equipment

Abstract

This utility model relates to a mechanism and production equipment for attaching sponge strips to the leg circumference of disposable sanitary trousers. The vertical guiding mechanism includes two parallel, spaced-apart guide rollers, the axes of which lie in a vertical plane. The horizontal guiding mechanism includes a guide idler wheel, the axis of which is perpendicular to the vertical plane containing the axis of the guide rollers. The guide idler wheel is used to attach the sponge strip to the non-woven fabric. The curve fitting mechanism includes a drive roller rotatably mounted on a frame. The drive roller has a cam groove corresponding to a preset curve in the leg circumference. A sliding frame is slidably mounted within the cam groove. The horizontal guiding mechanism is installed on the upper outer end of the sliding frame, and a slider is provided at the lower end of the sliding frame. A guide rail is provided on the frame corresponding to the slider, the length of which extends along the axis of the guide idler wheel. The slider and guide rail slide in a guiding manner. This allows for the smooth attachment of strip-shaped sponge strips along the leg circumference curve onto the corresponding non-woven fabric, minimizing edge wrinkles or flipping.

Description

Technical Field

[0001] This utility model relates to a mechanism and production equipment for attaching sponge strips to the leg openings of disposable sanitary trousers. Background Technology

[0002] Disposable sanitary trousers include disposable underwear, baby diapers, pull-up pants, and panty-style sanitary napkins for women. They all share the common feature of having a waistband and leg openings. To absorb sweat in the groin area, a sponge strip needs to be added around the leg openings. The strip shape increases the contact area with the skin, preventing marks and making the leg openings less likely to roll up. However, because the sponge strip is strip-shaped rather than circular, it is easier to bend it perpendicular to the sponge strip than parallel to it. When applied along a curve, the sponge strip is prone to edge wrinkles or even flipping over, affecting the adhesion between one side of its surface and the non-woven fabric layer, and also affecting wearing comfort. Utility Model Content

[0003] The purpose of this utility model is to provide a disposable close-fitting sanitary trousers leg cuff sponge strip application mechanism, which can smoothly apply the strip-shaped sponge strip along the leg cuff curve onto the corresponding non-woven fabric, and is less likely to cause edge wrinkles or flipping. The purpose of this utility model is also to provide a production equipment using the above-mentioned disposable close-fitting sanitary trousers leg cuff sponge strip application mechanism.

[0004] The technical solution of the disposable close-fitting sanitary trousers leg warmer sponge strip application mechanism of this utility model is as follows: The disposable close-fitting sanitary trousers leg warmer sponge strip application mechanism includes: frame; A sponge strip unwinding mechanism is used to unwind sponge strips. The adhesive application mechanism is used to apply adhesive to one side of the sponge strip. The vertical guide mechanism includes two parallel and spaced guide rollers, with a guide gap between the two guide rollers for the sponge strip to pass through, and the axis of the guide rollers is located in a vertical plane; The horizontal guide mechanism, located downstream of the vertical guide mechanism, includes a guide idler wheel. The axis of the guide idler wheel is perpendicular to the vertical plane where the axis of the guide roller is located. The guide idler wheel is used to fit the non-woven fabric so that the sponge strip can be bonded to the non-woven fabric. The curve fitting mechanism includes a drive roller rotatably mounted on a frame. The drive roller has a cam groove corresponding to a preset curve of the leg circumference. A sliding frame is slidably mounted in the cam groove. The horizontal guide mechanism is installed on the upper outer end of the sliding frame. A slider is provided at the lower end of the sliding frame. A guide rail is provided on the frame corresponding to the slider. The length of the guide rail extends along the axial direction of the guide idler wheel. The slider and the guide rail are guided and slidably engaged.

[0005] The beneficial effects of this technical solution are as follows: In use, the sponge strip application mechanism works together with the nonwoven fabric conveying equipment of the main processing equipment to apply the sponge strip to one side surface of the nonwoven fabric according to the preset curve corresponding to the leg circumference. Specifically, the sponge strip unwinding mechanism unwinds the sponge strip, and adhesive is applied to one side of the sponge strip by the gluing mechanism. Then, the sponge strip is guided by the vertical guide mechanism to be in a state perpendicular to the horizontal plane. After passing through the horizontal guide mechanism, it rotates 90 degrees. Since the guide idler wheel is designed to fit the nonwoven fabric, it facilitates the horizontal bonding of the sponge strip and the nonwoven fabric. Before the sponge strip is bonded to the nonwoven fabric, the horizontal guide mechanism carries the sponge strip. With the cooperation of the cam groove and the sliding frame, and the guidance of the slider and the guide rail, the sponge strip is arranged according to the preset curve of the leg circumference. During the bending process of the sponge strip with the horizontal guide mechanism, the sponge strip between the horizontal and vertical guide mechanisms is in a vertical state, that is, the sponge strip is bent along its thickness direction, and after bending, it is rotated 90 degrees to be horizontally bonded to the nonwoven fabric. As can be seen from the above process, this application can first convert the sponge strip into a vertical state so that it can be bent along its width direction to fit the complex preset curve of the leg circumference, and then convert it by 90 degrees so that the sponge strip after adjustment can adhere to the non-woven fabric by relying on the side with adhesive. In this way, while avoiding wrinkles and flipping of the sponge strip edge, the side with adhesive applied to the sponge strip can be perfectly adhered to the non-woven fabric, and the adhesion is distributed on the non-woven fabric according to the preset curve of the leg circumference.

[0006] Based on the above scheme, further improvements are made as follows: the horizontal guiding mechanism includes an auxiliary guiding mechanism, which is located between the guide idler wheel and the vertical guiding mechanism. The auxiliary guiding mechanism includes two parallel and spaced auxiliary rollers, and the axis of the auxiliary rollers and the axis of the guide rollers are located in the same vertical plane.

[0007] The beneficial effects of this technical solution are as follows: The auxiliary guiding mechanism ensures that both ends of the section of the sponge strip that needs to be bent along the curve are in a vertical state by the guidance of the guide roller and the auxiliary roller, respectively. This ensures that the section of the sponge strip that is bent is vertical so that it can be bent entirely in the thickness direction of the sponge strip. It also avoids the problem of the sponge strip detaching from the guide idler wheel or not being tightly attached to the guide idler wheel during bending.

[0008] Based on the above scheme, the following improvements are made: an adjustment motor is installed on the sliding frame, the axis of the adjustment motor is parallel to the axis of the auxiliary roller, and the horizontal guide mechanism is installed on the output shaft of the adjustment motor to drive the horizontal guide mechanism to rotate to be tangent to the preset curve of the leg circumference.

[0009] The beneficial effects of this technical solution are as follows: By adjusting the design of the motor-driven horizontal guide mechanism, the angle of the horizontal guide mechanism can be adjusted, thereby ensuring that the sponge strip can extend better along the tangent direction of the preset curve, so as to achieve a better fit with the preset curve.

[0010] Based on the above scheme, the following improvement is made: the axis of the auxiliary roller is parallel to the axis of the guide roller.

[0011] Based on the above scheme, the following improvements are made: at least one guide roller is provided between the vertical guide mechanism and the sponge strip unwinding mechanism, and the axis of the guide roller is parallel to the axis of the guide idler wheel.

[0012] Based on the above scheme, the following improvements are made: there are two guide rollers, and the glue application mechanism is set between the two guide rollers.

[0013] Based on the above scheme, the following improvements are made: the axis of the sponge strip unwinding mechanism is set horizontally.

[0014] Based on the above scheme, further improvements are made as follows: two corresponding cam grooves are set on the drive roller corresponding to the upper and lower curves of the leg circumference, respectively. The two cam grooves correspond to a set of horizontal guide mechanism, vertical guide mechanism, sliding frame and guide rail, respectively.

[0015] Based on the above solution, the following improvement is made: the vertical guide mechanism is fixed in position relative to the frame.

[0016] Based on the above solution, the following improvements are made: the outer surfaces of the guide roller, guide idler roller, auxiliary roller, and guide roller have an anti-adhesive coating to prevent adhesive from sticking.

[0017] Based on the above scheme, the following improvements are made: the anti-stick coating is a Teflon coating or a silicone rubber coating.

[0018] Based on the above scheme, the following improvements are made: the nonwoven fabric is driven by a negative pressure reverse suction conveyor belt.

[0019] The technical solution of the disposable intimate-fitting sanitary pant production equipment of this utility model is as follows: The disposable intimate-fitting sanitary pant production equipment includes a non-woven fabric conveying mechanism and a disposable intimate-fitting sanitary pant leg warmer sponge strip attaching mechanism, the disposable intimate-fitting sanitary pant leg warmer sponge strip attaching mechanism includes: frame; A sponge strip unwinding mechanism is used to unwind sponge strips. The adhesive application mechanism is used to apply adhesive to one side of the sponge strip. The vertical guide mechanism includes two parallel and spaced guide rollers, with a guide gap between the two guide rollers for the sponge strip to pass through, and the axis of the guide rollers is located in a vertical plane; The horizontal guide mechanism, located downstream of the vertical guide mechanism, includes a guide idler wheel. The axis of the guide idler wheel is perpendicular to the vertical plane where the axis of the guide roller is located. The guide idler wheel is used to fit the non-woven fabric so that the sponge strip can be bonded to the non-woven fabric. The curve fitting mechanism includes a drive roller rotatably mounted on a frame. The drive roller has a cam groove corresponding to a preset curve of the leg circumference. A sliding frame is slidably mounted in the cam groove. The horizontal guide mechanism is installed on the upper outer end of the sliding frame. A slider is provided at the lower end of the sliding frame. A guide rail is provided on the frame corresponding to the slider. The length of the guide rail extends along the axial direction of the guide idler wheel. The slider and the guide rail are guided and slidably engaged.

[0020] The beneficial effects of this technical solution are as follows: In use, the sponge strip application mechanism works together with the nonwoven fabric conveying equipment of the main processing equipment to apply the sponge strip to one side surface of the nonwoven fabric according to the preset curve corresponding to the leg circumference. Specifically, the sponge strip unwinding mechanism unwinds the sponge strip, and adhesive is applied to one side of the sponge strip by the gluing mechanism. Then, the sponge strip is guided by the vertical guide mechanism to be in a state perpendicular to the horizontal plane. After passing through the horizontal guide mechanism, it rotates 90 degrees. Since the guide idler wheel is designed to fit the nonwoven fabric, it facilitates the horizontal bonding of the sponge strip and the nonwoven fabric. Before the sponge strip is bonded to the nonwoven fabric, the horizontal guide mechanism carries the sponge strip. With the cooperation of the cam groove and the sliding frame, and the guidance of the slider and the guide rail, the sponge strip is arranged according to the preset curve of the leg circumference. During the bending process of the sponge strip with the horizontal guide mechanism, the sponge strip between the horizontal and vertical guide mechanisms is in a vertical state, that is, the sponge strip is bent along its thickness direction, and after bending, it is rotated 90 degrees to be horizontally bonded to the nonwoven fabric. As can be seen from the above process, this application can first convert the sponge strip into a vertical state so that it can be bent along its width direction to fit the complex preset curve of the leg circumference, and then convert it by 90 degrees so that the sponge strip after adjustment can adhere to the non-woven fabric by relying on the side with adhesive. In this way, while avoiding wrinkles and flipping of the sponge strip edge, the side with adhesive applied to the sponge strip can be perfectly adhered to the non-woven fabric, and the adhesion is distributed on the non-woven fabric according to the preset curve of the leg circumference.

[0021] Based on the above scheme, further improvements are made as follows: the horizontal guiding mechanism includes an auxiliary guiding mechanism, which is located between the guide idler wheel and the vertical guiding mechanism. The auxiliary guiding mechanism includes two parallel and spaced auxiliary rollers, and the axis of the auxiliary rollers and the axis of the guide rollers are located in the same vertical plane.

[0022] The beneficial effects of this technical solution are as follows: The auxiliary guiding mechanism ensures that both ends of the section of the sponge strip that needs to be bent along the curve are in a vertical state by the guidance of the guide roller and the auxiliary roller, respectively. This ensures that the section of the sponge strip that is bent is vertical so that it can be bent entirely in the thickness direction of the sponge strip. It also avoids the problem of the sponge strip detaching from the guide idler wheel or not being tightly attached to the guide idler wheel during bending.

[0023] Based on the above scheme, the following improvements are made: an adjustment motor is installed on the sliding frame, the axis of the adjustment motor is parallel to the axis of the auxiliary roller, and the horizontal guide mechanism is installed on the output shaft of the adjustment motor to drive the horizontal guide mechanism to rotate to be tangent to the preset curve of the leg circumference.

[0024] The beneficial effects of this technical solution are as follows: By adjusting the design of the motor-driven horizontal guide mechanism, the angle of the horizontal guide mechanism can be adjusted, thereby ensuring that the sponge strip can extend better along the tangent direction of the preset curve, so as to achieve a better fit with the preset curve.

[0025] Based on the above scheme, the following improvement is made: the axis of the auxiliary roller is parallel to the axis of the guide roller.

[0026] Based on the above scheme, the following improvements are made: at least one guide roller is provided between the vertical guide mechanism and the sponge strip unwinding mechanism, and the axis of the guide roller is parallel to the axis of the guide idler wheel.

[0027] Based on the above scheme, the following improvements are made: there are two guide rollers, and the glue application mechanism is set between the two guide rollers.

[0028] Based on the above scheme, the following improvements are made: the axis of the sponge strip unwinding mechanism is set horizontally.

[0029] Based on the above scheme, further improvements are made as follows: two corresponding cam grooves are set on the drive roller corresponding to the upper and lower curves of the leg circumference, respectively. The two cam grooves correspond to a set of horizontal guide mechanism, vertical guide mechanism, sliding frame and guide rail, respectively.

[0030] Based on the above solution, the following improvement is made: the vertical guide mechanism is fixed in position relative to the frame.

[0031] Based on the above solution, the following improvements are made: the outer surfaces of the guide roller, guide idler roller, auxiliary roller, and guide roller have an anti-adhesive coating to prevent adhesive from sticking.

[0032] Based on the above scheme, the following improvements are made: the anti-stick coating is a Teflon coating or a silicone rubber coating.

[0033] Based on the above scheme, the following improvements are made: the nonwoven fabric is driven by a negative pressure reverse suction conveyor belt. Attached Figure Description

[0034] Figure 1 A schematic diagram illustrating the manufacturing process of disposable sanitary panties (before folding). Figure 2 A schematic diagram illustrating the working principle of disposable sanitary panties after folding them in half; Figure 3 This is a three-dimensional schematic diagram of a partial structure of a specific embodiment of the disposable intimate sanitary pants production equipment of this utility model; Figure 4 for Figure 3 The right-side perspective view; Figure 5 for Figure 3 A 3D diagram of the internal structure; Figure 6 A three-dimensional diagram showing the cooperation structure between the curve fitting mechanism and the vertical and horizontal guiding mechanisms; Figure 7 This is a front view of a partial structure of a specific embodiment of the disposable intimate sanitary pants production equipment of this utility model; Figure 8 A three-dimensional view of the coordinated structure of the sliding frame, horizontal guide mechanism, vertical guide mechanism, and guide roller; Figure 9 for Figure 8 The main view; Figure 10 for Figure 8 Top view; Figure 11 A three-dimensional view of the horizontal guide mechanism; Figure 12 This is a schematic diagram illustrating the principle of a horizontal guide mechanism adjusting its angle according to a preset curve under the action of an adjusting motor. In the diagram: 1-Non-woven fabric, 2-Sponge strip, 3-Waistband, 31-Upper side of waistband, 32-Lower side of waistband, 4-Knitted fabric lining of crotch area, 51-Upper curve of sponge strip at leg opening, 52-Lower curve of sponge strip at leg opening, 53-Leg opening, 6-O-cut, 7-Tearing point, 8-Frame, 9-Glue application mechanism, 10-Vertical guide mechanism, 101-Guide roller, 102-Guide gap, 11-Horizontal guide mechanism, 111-Guide idler wheel, 112-Auxiliary roller, 12-Curve fitting mechanism, 121-Drive roller, 1211-Cam groove, 122-Sliding frame, 1221-Slider, 123-Guide rail, 124-Adjusting motor, 13-Guide roller, 14-Negative pressure reverse suction conveyor belt. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0039] Figure 1 This demonstrates the technological principles of disposable underwear manufacturing. Other functional layers are adhered to the bonded non-woven fabric 1, followed by the knitted fabric lining. Two sponge strips 2 are then attached to the corresponding leg circumferences. Figure 1 Sponge strip 2 is attached to the upper curve and lower curve of the sponge strip at the leg circumference, respectively. Then, after O-cutting, excess material is removed to form the leg shaping area. (The text abruptly ends here.) Figure 2 As shown, continue Figure 1 In the process, the non-woven fabric 1, cut in the previous step O, is folded in half vertically, and the upper and lower edges of the waistband are joined together to form the waistband. The upper and lower curves of the sponge strips at the leg openings are folded in half to form individual leg openings. The equipment in this application is primarily the specific equipment for implementing the above process principles.

[0040] A specific embodiment of the disposable intimate sanitary pants production equipment of this utility model: as follows Figures 3-11 As shown, the production equipment mainly includes a nonwoven fabric conveying mechanism for conveying nonwoven fabric 1, a sponge strip conveying mechanism for conveying sponge strip 2, various mechanisms for bonding and bonding materials of each layer, and various mechanisms for cutting and breaking. Among them, the vertical guide mechanism 10, the horizontal guide mechanism 11, and the curve fitting mechanism 12 are the main improvements of this application, which will be described in detail below with reference to the accompanying drawings. The frame 8, the unwinding mechanism, the cutting mechanism, the gluing mechanism 9, etc. are existing technologies and will not be described in detail.

[0041] like Figures 6-10 As shown, the vertical guide mechanism 10 includes two parallel guide rollers 101. The guide rollers 101 are cylindrical in shape, arranged side by side, and are mounted on the frame 8 via bearings or direct rotation. A guide gap 102 is formed between the two guide rollers 101 to allow the sponge strip 2 to pass through. The axis of the guide roller 101 is located in a vertical plane. In this embodiment, the axis of the guide roller 101 forms an acute angle with the vertical line to ensure that the guide roller 101 does not contact the non-woven fabric 1 when the sponge strip 2 is attached to it.

[0042] The horizontal guide mechanism 11 is located downstream of the vertical guide mechanism 10 and includes a guide idler wheel 111. The axis of the guide idler wheel 111 is perpendicular to the vertical plane where the axis of the guide roller 101 is located. In this embodiment, the axis of the guide idler wheel 111 is in the horizontal plane and extends along the width direction of the nonwoven fabric 1. The guide idler wheel 111 is used to fit the nonwoven fabric 1 so that the sponge strip 2 can be fitted to the nonwoven fabric 1. That is, the upper surface of the guide idler wheel 111 is fitted to the lower surface of the corresponding nonwoven fabric 1, so that the guided sponge strip 2 can be fitted to the lower surface of the nonwoven fabric 1.

[0043] like Figure 11 As shown, the horizontal guiding mechanism 11 includes an auxiliary guiding mechanism located between the guide idler wheel 111 and the vertical guiding mechanism 10. The auxiliary guiding mechanism includes two parallel and spaced auxiliary rollers 112, the axes of which are in the same vertical plane as the axis of the guide roller 101. The auxiliary guiding mechanism ensures that the two ends of the section of the sponge strip 2 that needs to be bent along a curve are in a vertical state, guided by the guide roller 101 and the auxiliary roller 112 respectively. This ensures that the bent section of the sponge strip 2 is vertical, allowing it to bend entirely along its thickness direction. It also prevents the sponge strip 2 from detaching from the guide idler wheel 111 or from not being tightly fitted to it during bending.

[0044] like Figures 8-10As shown, an adjusting motor 124 is installed on the sliding frame 122. The axis of the adjusting motor 124 is parallel to the axis of the auxiliary roller 112. A horizontal guide mechanism 11 is installed on the output shaft of the adjusting motor 124 to drive the horizontal guide mechanism 11 to rotate until it is tangent to the preset curve of the leg circumference. The schematic diagram of the tangent state is shown below. Figure 12 As shown. The design of adjusting the motor 124 to drive the horizontal guide mechanism 11 allows for adjustment of the angle of the horizontal guide mechanism 11, thereby ensuring that the sponge strip 2 can extend better along the tangent direction of the preset curve, so as to achieve a better fit with the preset curve.

[0045] The curve fitting mechanism 12 includes a drive roller 121 rotatably mounted on the frame 8. The drive roller 121 is driven by a corresponding drive motor. The drive roller 121 is provided with a cam groove 1211 corresponding to the preset curve of the leg circumference. The "preset curve of the leg circumference" mentioned in this article refers to the corresponding curve. Figure 1 The upper curve 51 and lower curve 52 of the sponge strip at the leg circumference are provided. A sliding frame 122 is slidably mounted in the cam groove 1211. The sliding frame 122 is similar to an L-shaped structure. The horizontal guide mechanism 11 is installed at the upper outer end of the sliding frame 122. A slider 1221 is provided at the lower end of the sliding frame 122. A guide rail 123 is provided on the frame 8 corresponding to the slider 1221. The length of the guide rail 123 extends along the axial direction of the guide idler wheel 111. The slider 1221 and the guide rail 123 are guided and slidably engaged.

[0046] Furthermore, the axis of the auxiliary roller 112 is parallel to the axis of the guide roller 101. At least one guide roller 13 is provided between the vertical guide mechanism 10 and the sponge strip unwinding mechanism, and the axis of the guide roller 13 is parallel to the axis of the guide idler wheel 111. There are two guide rollers 13, and the adhesive application mechanism 9 is provided between the two guide rollers 13. The axis of the sponge strip unwinding mechanism is horizontally positioned. Two corresponding cam grooves 1211 are provided on the drive roller 121, corresponding to the upper curve 51 and lower curve 52 of the leg circumference, respectively. The two cam grooves 1211 correspond to a set of horizontal guide mechanism 11, vertical guide mechanism 10, sliding frame 122, and guide rail 123, respectively. The vertical guide mechanism 10 is fixed relative to the frame 8. The outer surfaces of the guide roller 101, guide idler wheel 111, auxiliary roller 112, and guide roller 13 have an anti-adhesive coating to prevent adhesive adhesion. The anti-adhesive coating is a Teflon coating or a silicone rubber coating. Figure 7 As shown, the nonwoven fabric 1 is driven by the negative pressure reverse suction conveyor belt 14.

[0047] In use, the sponge strip application mechanism works in conjunction with the nonwoven fabric conveying equipment of the main processing equipment to apply the sponge strip 2 onto one side surface of the nonwoven fabric 1 according to the preset curve corresponding to the leg circumference 53. The sponge strip unwinding mechanism unwinds the sponge strip 2, and adhesive is applied to one side of the sponge strip 2 by the gluing mechanism 9. Then, the sponge strip 2 is guided by the vertical guide mechanism 10 to be perpendicular to the horizontal plane, and then rotates 90 degrees after passing through the horizontal guide mechanism 11. Since the guide idler wheel 111 is designed to adhere to the nonwoven fabric 1, it facilitates the bonding of the sponge strip 2 with the nonwoven fabric. 1. Horizontal bonding: Before the sponge strip 2 is bonded to the nonwoven fabric 1, the horizontal guide mechanism 11 carries the sponge strip 2. With the cooperation of the cam groove 1211 and the sliding frame 122, and the guidance of the slider 1221 and the guide rail 123, the sponge strip 2 is arranged according to the preset curve of the leg circumference 53. During the bending process of the sponge strip 2 with the horizontal guide mechanism 11, the sponge strip 2 between the horizontal guide mechanism 11 and the vertical guide mechanism 10 is in a vertical state, that is, the sponge strip 2 is bent along its thickness direction, and after bending, it is rotated 90 degrees to be horizontally bonded to the nonwoven fabric 1. As can be seen from the above process, this application can first convert the sponge strip 2 into a vertical state so that it can be bent along its width direction to fit the complex preset curve at the leg circumference 53, and then convert it by 90 degrees so that the sponge strip 2 after adjustment can adhere to the non-woven fabric 1 by relying on the side with adhesive applied. Thus, without avoiding the edge wrinkles and flipping of the sponge strip 2, the side with adhesive applied to the sponge strip 2 can be perfectly adhered to the non-woven fabric 1, and the adhesion is distributed on the non-woven fabric 1 according to the preset curve at the leg circumference 53.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A mechanism for attaching sponge strips to the leg openings of disposable sanitary trousers, including: frame; A sponge strip unwinding mechanism is used to unwind sponge strips. The adhesive application mechanism is used to apply adhesive to one side of the sponge strip. Its characteristic is that it further includes: The vertical guide mechanism includes two parallel and spaced guide rollers, with a guide gap between the two guide rollers for the sponge strip to pass through, and the axis of the guide rollers is located in a vertical plane; The horizontal guide mechanism, located downstream of the vertical guide mechanism, includes a guide idler wheel. The axis of the guide idler wheel is perpendicular to the vertical plane where the axis of the guide roller is located. The guide idler wheel is used to fit the non-woven fabric so that the sponge strip can be bonded to the non-woven fabric. The curve fitting mechanism includes a drive roller rotatably mounted on a frame. The drive roller has a cam groove corresponding to a preset curve of the leg circumference. A sliding frame is slidably mounted in the cam groove. The horizontal guide mechanism is installed on the upper outer end of the sliding frame. A slider is provided at the lower end of the sliding frame. A guide rail is provided on the frame corresponding to the slider. The length of the guide rail extends along the axial direction of the guide idler wheel. The slider and the guide rail are guided and slidably engaged.

2. The disposable close-fitting sanitary trousers leg cuff sponge strip application mechanism according to claim 1, characterized in that, The horizontal guiding mechanism includes an auxiliary guiding mechanism located between the guide idler wheel and the vertical guiding mechanism. The auxiliary guiding mechanism includes two parallel and spaced auxiliary rollers, the axis of which is in the same vertical plane as the axis of the guide roller.

3. The disposable close-fitting sanitary trousers leg cuff sponge strip application mechanism according to claim 2, characterized in that, An adjustment motor is installed on the sliding frame. The axis of the adjustment motor is parallel to the axis of the auxiliary roller. The horizontal guide mechanism is installed on the output shaft of the adjustment motor to drive the horizontal guide mechanism to rotate until it is tangent to the preset curve of the leg circumference.

4. The disposable close-fitting sanitary trouser leg cuff sponge strip application mechanism according to claim 2 or 3, characterized in that, The axis of the auxiliary roller is parallel to the axis of the guide roller.

5. The disposable close-fitting sanitary trouser leg cuff sponge strip application mechanism according to claim 1, characterized in that, At least one guide roller is provided between the vertical guide mechanism and the sponge strip unwinding mechanism, and the axis of the guide roller is parallel to the axis of the guide idler wheel.

6. The disposable close-fitting sanitary trousers leg cuff sponge strip application mechanism according to claim 5, characterized in that, There are two guide rollers, and the glue application mechanism is arranged between the two guide rollers.

7. The disposable close-fitting sanitary trousers leg cuff sponge strip application mechanism according to claim 1, characterized in that, The axis of the sponge strip unwinding mechanism is set horizontally.

8. The disposable close-fitting sanitary trouser leg cuff sponge strip application mechanism according to claim 1, characterized in that, The drive roller is provided with two corresponding cam grooves corresponding to the upper and lower curves of the leg circumference, respectively. The two cam grooves correspond to a set of horizontal guide mechanism, vertical guide mechanism, sliding frame and guide rail.

9. The disposable close-fitting sanitary trouser leg cuff sponge strip application mechanism according to claim 1, characterized in that, The vertical guide mechanism is fixed relative to the frame.

10. Equipment for producing disposable intimate underwear, characterized in that, It includes a nonwoven fabric conveying mechanism and a disposable close-fitting sanitary trouser leg sponge strip application mechanism as described in any one of claims 1-9.

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