Sanitary napkin production apparatus and production process thereof

Abstract

This invention relates to sanitary napkin production equipment and its manufacturing process, specifically to a laminating device and process for the backing paper of small-packaged sanitary products in the sanitary napkin production process. The backing paper feeding device and the small-packaged film feeding device are located at the lower part of the sanitary napkin production line. The ends of the backing paper feeding device and the small-packaged film feeding device are connected to the front end of an adhesive applicator. The adhesive-coated backing paper output from the end of the backing paper feeding device is laminated with the small-packaged film output from the end of the small-packaged film feeding device and then enters the adhesive applicator. The end of the adhesive applicator is connected to the sanitary napkin production line, bonding the adhesive backing paper and small-packaged film together with the sanitary napkin. This invention solves the problems in the prior art where the small-packaged film material is relatively thin, easily deformed after adhesive application, and causes misalignment and displacement when stacked with the backing paper, leading to ineffective packaging, low efficiency, low product qualification rate, and negative impact on packaging quality and aesthetics in subsequent packaging machines.

Description

Technical Field

[0001] This invention relates to sanitary napkin production equipment and its production process, and particularly to a composite equipment and its composite process for small-package backing paper in the sanitary napkin production process. Background Technology

[0002] The material layering of sanitary napkins mainly involves adhesive application. Currently, the layering of the small pouch film and backing paper is achieved through a heated adhesive application machine (three-point adhesive). This three-point adhesive primarily secures the sanitary napkin, ensuring the small pouch film is flat for optimal packaging. In existing sanitary napkin manufacturing processes, the backing paper is first laminated to the bottom film, then flipped before being laminated to the small pouch film. This layering method easily leads to wrinkles and deformation of the small pouch film after adhesive application. This is primarily because the small pouch film material is relatively thin, and the adhesive temperature is relatively high, making it prone to deformation after application. Subsequent layering with the backing paper then easily causes wrinkles and misalignment. This production process is prone to errors, hindering effective packaging by subsequent packaging machines, resulting in low efficiency, a low product qualification rate, and negatively impacting packaging quality and aesthetics.

[0003] In view of the problems existing in the above-mentioned existing technologies, it is necessary to research and design a new sanitary napkin production equipment and its production process to overcome the problems existing in the existing technologies. Summary of the Invention

[0004] In response to the technical problems mentioned above, such as the thinness of the small packaging film material, its easy deformation after gluing, and the resulting displacement of the packaging area and position after overlapping with the backing paper, resulting in ineffective packaging, low efficiency, low product qualification rate, and impact on packaging quality and aesthetics of subsequent packaging machines, this paper provides a sanitary napkin production equipment and its production process.

[0005] The technical means employed in this invention are as follows:

[0006] A sanitary napkin production equipment includes: a backing paper feeding device, a small pack film feeding device, and an adhesive application device;

[0007] Furthermore, the backing paper feeding device and the small wrapping film feeding device are located at the bottom of the sanitary napkin production line;

[0008] Furthermore, the end of the backing paper feeding device and the end of the small wrapping film feeding device are connected to the front of the gluing device; the adhesive backing paper output from the end of the backing paper feeding device and the small wrapping film output from the end of the small wrapping film feeding device are combined and then enter the gluing device.

[0009] Furthermore, the end of the adhesive applicator connects to the sanitary napkin production line, bonding the backing paper and small packaging film together with the sanitary napkin.

[0010] Furthermore, the back paper feeding device includes: a back paper rack, a material changing mechanism A, a material storage mechanism A, a traction wheel A, a deviation corrector A, a transition wheel, a three-point glue gun, a odor suction tube A, a small suction hopper, and a back paper slitting mechanism;

[0011] Furthermore, the back paper rack, the material changing mechanism A, the material storage mechanism A, the traction wheel A, the deviation corrector A, the transition wheel, the small suction hopper and the back paper cutting mechanism are arranged in sequence. The back paper on the back paper rack passes through the above mechanisms in sequence and is stacked together with the small wrapping film on the rollers of the back paper cutting mechanism.

[0012] Furthermore, a three-point glue gun is installed on one side between the transition wheel and the small suction hopper;

[0013] Furthermore, an odor-absorbing tube A is installed next to the three-point glue gun.

[0014] Furthermore, the small film feeding device includes: a small film rack, a material changing mechanism B, a material storage mechanism B, a traction wheel B, a small swing arm, a deviation corrector B, and a traction wheel C;

[0015] Furthermore, the small wrapping film rack, the material changing mechanism B, the material storage mechanism B, the traction wheel B, the small swing arm, the deviation corrector B, and the traction wheel C are arranged in sequence. The small wrapping film on the small wrapping film rack passes through the above mechanisms in sequence, and is superimposed on the back paper on the roller of the back paper cutting mechanism at the end of the back paper feeding device to form a composite small wrapping film.

[0016] Furthermore, the adhesive application device includes: two push rods, odor-absorbing tube B, a glue gun, and a backing glue machine;

[0017] Furthermore, the two push rods are arranged side by side, one in front of the other, and the push rods lift up the composite small film that passes in front;

[0018] Furthermore, a glue gun and a backing glue machine are provided on the other side of the composite small film to apply glue to the raised composite small film.

[0019] Furthermore, an odor-absorbing tube B is installed between the two push rods on the same side.

[0020] Furthermore, the production process of sanitary napkin production equipment includes: backing paper feeding step, small film feeding step, and adhesive application step.

[0021] Furthermore, the backing paper feeding process includes:

[0022] 61. The back paper on the back paper rack is wound around the storage mechanism A via the material switching mechanism A;

[0023] 62. After the tension of the back paper is adjusted by the storage mechanism A, it enters the guide roller A after being pulled by the traction wheel A.

[0024] 63. After the back paper is adjusted in direction by the guide A, it is drawn into the back paper slitting mechanism by the small suction bucket after passing through the transition wheel.

[0025] 64. During step 63, the backing paper is glued using a three-point glue gun, and the odor from the glue application is absorbed by the odor suction tube A at the same time.

[0026] 65. After the sizing of the backing paper, it enters the backing paper slitting mechanism for slitting. Then, after passing through the sticking rollers of the backing paper slitting mechanism, it is stacked with the small package film.

[0027] Furthermore, the small-package film feeding step includes:

[0028] 71. The small film on the small film rack is wound around the storage mechanism B via the material exchange mechanism B;

[0029] 72. After the tension of the small film is adjusted by the storage mechanism B, it is pulled by the traction wheel B and then the tension of the small film is adjusted by the small swing rod before entering the correction device B.

[0030] 73. After the small wrapping film is adjusted in direction by the correction device B, it is pulled by the traction wheel C and enters the sticking roller of the backing paper slitting mechanism. The sticking roller stacks the glued backing paper and the small wrapping film together to form a composite small wrapping film.

[0031] Furthermore, the adhesive application step includes:

[0032] 81. The push rod lifts up the composite small package film and pushes it to the front of the glue gun and the adhesive backing machine;

[0033] 82. The glue gun and the adhesive backing machine apply glue to the supported composite small package film. At the same time, the odor of the glue application is absorbed by the odor suction tube B.

[0034] 83. After the composite small film that has undergone adhesive application in step 82 enters the sanitary napkin production line, it is bonded together with the sanitary napkin.

[0035] Compared with the prior art, the present invention has the following advantages:

[0036] 1. The sanitary napkin production equipment and its production process provided by the present invention strengthen the materials by pre-compositing the small packaging film and the backing paper, thereby achieving no deformation of the small packaging film after adhesive application, and improving product quality and pass rate.

[0037] 2. The sanitary napkin production equipment and its production process provided by the present invention, through the pre-composite bonding of the small film and the backing paper, allows the material to cool down rapidly after the adhesive is applied, thereby achieving the phenomenon of no wrinkles in the small film after adhesive application, which improves product quality and the pass rate.

[0038] 3. The sanitary napkin production equipment and its production process provided by the present invention improve production efficiency by pre-compositing the small packaging film and the backing paper, making it less likely for the sanitary napkin to fall off when there is no backing paper turning.

[0039] In summary, the technical solution of this invention solves the problems in the prior art where the small packaging film material is relatively thin, easily deformed after gluing, and causes misalignment and positional shift when superimposed with the backing paper, resulting in ineffective packaging, low efficiency, low product qualification rate, and impact on packaging quality and aesthetics in subsequent packaging machines. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the process equipment structure of the present invention;

[0042] Figure 2 This is a schematic diagram of the existing process equipment.

[0043] In the diagram: 1. Backing paper rack; 2. Material changing mechanism A; 3. Material storage mechanism A; 4. Traction wheel A; 5. Tracking device A; 6. Transition wheel; 7. Three-point glue gun; 8. Odor extraction tube A; 9. Small suction hopper; 10. Backing paper slitting mechanism; 11. Backing paper; 12. Small wrapping film; 13. Small wrapping film rack; 14. Material changing mechanism B; 15. Material storage mechanism B; 16. Traction wheel B; 17. Small swing arm; 18. Tracking device B; 19. Traction wheel C; 20. Push rod; 21. Odor extraction tube B; 22. Line glue gun; 23. Backing glue machine; 24. Composite small wrapping film. Detailed Implementation

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0047] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0048] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0049] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0050] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0051] As shown in the figure, the present invention provides a sanitary napkin production equipment including: a backing paper feeding device, a small wrapping film feeding device, and an adhesive applicator; the backing paper feeding device and the small wrapping film feeding device are arranged at the lower part of the sanitary napkin production line; the end of the backing paper feeding device and the end of the small wrapping film feeding device are connected to the front end of the adhesive applicator; the adhesive-coated backing paper output from the end of the backing paper feeding device and the small wrapping film output from the end of the small wrapping film feeding device are combined and then enter the adhesive applicator; the end of the adhesive applicator is connected to the sanitary napkin production line, and the backing paper and small wrapping film bonded together are combined with the sanitary napkin.

[0052] The backing paper feeding device includes: a backing paper rack 1, a material changing mechanism A2, a material storage mechanism A3, a traction wheel A4, a deviation corrector A5, a transition wheel 6, a three-point glue gun 7, an odor suction tube A8, a small suction hopper 9, and a backing paper slitting mechanism 10; the backing paper rack 1, the material changing mechanism A2, the material storage mechanism A3, the traction wheel A4, the deviation corrector A5, the transition wheel 6, the small suction hopper 9, and the backing paper slitting mechanism 10 are arranged in sequence, and the backing paper 11 on the backing paper rack 1 passes through the above-mentioned mechanisms in sequence, and is superimposed on the small wrapping film 12 on the roller of the backing paper slitting mechanism 10; a three-point glue gun 7 is arranged on one side between the transition wheel 6 and the small suction hopper 9; an odor suction tube A8 is arranged next to the three-point glue gun 7.

[0053] The small wrapping film feeding device includes: a small wrapping film rack 13, a material changing mechanism B14, a material storage mechanism B15, a traction wheel B16, a small swing arm 17, a deviation corrector B18, and a traction wheel C19. The small wrapping film rack 13, the material changing mechanism B14, the material storage mechanism B15, the traction wheel B16, the small swing arm 17, the deviation corrector B18, and the traction wheel C19 are arranged in sequence. The small wrapping film 12 on the small wrapping film rack 13 passes through the above-mentioned mechanisms in sequence, and is superimposed on the back paper 11 on the roller of the back paper cutting mechanism 10 at the end of the back paper feeding device to form a composite small wrapping film 24.

[0054] The adhesive application device includes: two push rods 20, an odor-absorbing tube B21, a glue gun 22, and a backing adhesive applicator 23; the two push rods 20 are arranged side by side, and the push rods 20 lift up the composite small package 24 that passes in front; the glue gun 22 and the backing adhesive applicator 23 are arranged on the other side of the composite small package 24 to apply adhesive to the lifted composite small package 24; the odor-absorbing tube B21 is arranged between the two push rods 20 on the same side.

[0055] The production process of sanitary napkin production equipment includes: backing paper feeding step, small film feeding step, and adhesive application step.

[0056] The backing paper feeding process includes:

[0057] 61. The back paper 11 on the back paper rack 1 is wound around the storage mechanism A3 via the material switching mechanism A2;

[0058] 62. After the tension of the back paper 11 is adjusted by the storage mechanism A3, it enters the correction device A5 after being pulled by the traction wheel A4.

[0059] 63. After the back paper 11 is adjusted in direction by the correction device A5, it is transferred by the transition wheel 6 and then sucked into the back paper slitting mechanism 10 by the small suction bucket 9.

[0060] 64. During step 63, the backing paper 11 is glued by the three-point glue gun 7, and the odor of the glue application is absorbed by the odor suction tube A8 at the same time.

[0061] 65. After the adhesive-coated backing paper 11 enters the backing paper slitting mechanism 10 for slitting, it passes through the sticking roller of the backing paper slitting mechanism 10 and is then stacked with the small package film 12.

[0062] The small-package film feeding steps include:

[0063] 71. The small film 12 on the small film rack 13 is wound around the storage mechanism B15 via the material exchange mechanism B14;

[0064] 72. After the tension of the small film 12 is adjusted by the storage mechanism B15, it is pulled by the traction wheel B16 and then the tension of the small film 12 is adjusted by the small swing rod 17 before entering the correction device B18.

[0065] 73. After the small wrapping film 12 is adjusted in direction by the correction device B18, it is pulled by the traction wheel C19 and enters the sticking roller of the back paper slitting mechanism 10. The sticking roller stacks the glued back paper 11 and the small wrapping film 12 together to form a composite small wrapping film 24.

[0066] The adhesive application process includes:

[0067] 81. The push rod 20 supports the composite small package film 24 and pushes it to the front of the glue gun 22 and the adhesive backing machine 23;

[0068] 82. The glue gun 22 and the adhesive backing machine 23 apply glue to the supported composite small film 24. At the same time, the odor of the glue application is absorbed by the odor suction tube B21.

[0069] 83. After the composite small film 24, which has undergone adhesive application in step 82, enters the sanitary napkin production line, it is bonded together with the sanitary napkin.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sanitary napkin production equipment, characterized in that: The sanitary napkin production equipment includes: a backing paper feeding device, a small package film feeding device, and an adhesive application device; The backing paper feeding device and the small packaging film feeding device are located at the bottom of the sanitary napkin production line; The end of the backing paper feeding device and the end of the small wrapping film feeding device are connected to the front end of the gluing device; the adhesive backing paper output from the end of the backing paper feeding device and the small wrapping film output from the end of the small wrapping film feeding device are combined and then enter the gluing device. The end of the adhesive applicator is connected to the sanitary napkin production line to bond the backing paper and small packaging film together with the sanitary napkin. The backing paper feeding device includes: a backing paper rack (1), a material changing mechanism A (2), a material storage mechanism A (3), a traction wheel A (4), a deviation corrector A (5), a transition wheel (6), a three-point glue gun (7), an odor suction tube A (8), a small suction hopper (9), and a backing paper cutting mechanism (10); the backing paper rack (1), the material changing mechanism A (2), the material storage mechanism A (3), the traction wheel A (4), the deviation corrector A (5), the transition wheel (6), the small suction hopper (9), and the backing paper cutting mechanism (10) are arranged in sequence, and the backing paper (11) on the backing paper rack (1) passes through the above mechanisms in sequence, and is stacked with the small wrapping film (12) on the roller of the backing paper cutting mechanism (10); a three-point glue gun (7) is arranged on one side between the transition wheel (6) and the small suction hopper (9); an odor suction tube A (8) is arranged next to the three-point glue gun (7). The small wrapping film feeding device includes: a small wrapping film rack (13), a material switching mechanism B (14), a material storage mechanism B (15), a traction wheel B (16), a small swing arm (17), a deviation corrector B (18), and a traction wheel C (19); the small wrapping film rack (13), the material switching mechanism B (14), the material storage mechanism B (15), the traction wheel B (16), the small swing arm (17), the deviation corrector B (18), and the traction wheel C (19) are arranged in sequence. The small wrapping film (12) on the small wrapping film rack (13) passes through the above mechanisms in sequence, and is superimposed on the back paper (11) on the roller of the back paper cutting mechanism (10) at the end of the back paper feeding device to form a composite small wrapping film (24). The adhesive application device includes: two push rods (20), a odor-absorbing tube B (21), a glue gun (22), and a backing glue machine (23); the two push rods (20) are arranged side by side, and the push rods (20) lift up the composite small film (24) that passes in front; the glue gun (22) and the backing glue machine (23) are arranged on the other side of the composite small film (24) to apply adhesive to the lifted composite small film (24); the odor-absorbing tube B (21) is arranged between the two push rods (20) on the same side.

2. A production process for the sanitary napkin production equipment as described in claim 1, characterized in that: The production process of the sanitary napkin production equipment includes: backing paper feeding step, small film feeding step, and adhesive application step.

3. The production process of the sanitary napkin production equipment according to claim 2, characterized in that: The backing paper feeding steps include: S61, the back paper (11) on the back paper rack (1) is wound around the storage mechanism A (3) through the material exchange mechanism A (2); S62. After the back paper (11) is adjusted by the storage mechanism A (3), it enters the correction device A (5) after being pulled by the traction wheel A (4). S63. After the back paper (11) is adjusted in direction by the correction device A (5), it is transferred by the transition wheel (6) and then sucked into the back paper slitting mechanism (10) by the small suction bucket (9). S64, Backing paper (11) During step 63, the three-point glue gun (7) applies glue to it, and at the same time the odor is absorbed by the odor suction tube A (8). S65. After the sizing backing paper (11) enters the backing paper slitting mechanism (10) for slitting, it passes through the sticking roller of the backing paper slitting mechanism (10) and is then stacked with the small package film (12).

4. The production process of the sanitary napkin production equipment according to claim 2, characterized in that: The small film feeding steps include: S71, the small film (12) on the small film rack (13) is wound around the storage mechanism B (15) via the material exchange mechanism B (14); S72. After the tension of the small film (12) is adjusted by the storage mechanism B (15), it is pulled by the traction wheel B (16) and then the tension of the small film (12) is adjusted by the small swing rod (17) before entering the correction device B (18). S73. After the small wrapping film (12) is adjusted in direction by the correction device B (18), it is pulled by the traction wheel C (19) and enters the sticking roller of the back paper cutting mechanism (10). The sticking roller stacks the glued back paper (11) and the small wrapping film (12) together to form a composite small wrapping film (24).

5. The production process of the sanitary napkin production equipment according to claim 2, characterized in that: The adhesive application step includes: S81, the push rod (20) supports the composite small package film (24) and pushes it to the front of the glue gun (22) and the adhesive backing machine (23); S82, the glue gun (22) and the adhesive glue machine (23) apply glue to the supported composite small film (24), and at the same time the odor is absorbed by the odor suction tube B (21); S83. After the composite small package (24) applied with adhesive in step 82 enters the sanitary napkin production line, it is bonded together with the sanitary napkin.

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