Bending and wrapping device for sanitary napkins

Abstract

The utility model relates to the technical field of hygienic product manufacturing equipment, in particular to a sanitary towel bending and wrapping device which comprises a vertically-arranged supporting plate, and a conveying assembly, a first pressing and covering assembly, a second pressing and covering assembly, a third pressing and covering assembly and a gluing assembly are fixed to the side face of the supporting plate. The conveying assembly conveys a core wrapping layer fixed with an inner core, and a left side bending assembly and a right side bending assembly are fixed to the conveying assembly. The first pressing assembly comprises two first pressing wheels, the two first pressing wheels are pressed on the left side portion and the right side portion of the core wrapping layer respectively, the second pressing assembly comprises a second pressing wheel, the second pressing wheel is pressed on the inner core, the left side portion is bent to the top face of the inner core through the left side bending assembly, the left side portion is coated with glue through the gluing assembly, and the third pressing assembly comprises a third pressing wheel. The third pressing wheel is pressed on the right side part, and the right side part is bent to the top face of the inner core through the right side bending assembly. According to the utility model, the condition that the core-spun layer is wrinkled or bent in advance can be reduced, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary product manufacturing equipment, in particular to a bending and covering device for a sanitary napkin. Background Art

[0002] Sanitary napkins are a type of sanitary product used by women during menstruation. They have a large market and are a necessity in women's daily lives. To improve menstrual blood absorption, a water-absorbing layer wraps around an inner core layer. For example, utility model patent CN214967759U discloses a similar sanitary napkin. As shown in the accompanying drawings, the core layer of the water-absorbing layer wraps fluff pulp and superabsorbent polymer to enhance water absorption. The two sides of the core layer are bent and overlapped to wrap the inner core.

[0003] In this regard, the existing technology is to use a special bending and covering device to complete the core covering layer, such as Figure 1 As shown, the inner core 20 is first placed in the center of the core wrap layer 10. Since the width of the core wrap layer 10 is greater than the width of the inner core 20, a left side portion 11 and a right side portion 12 are formed on the left and right sides of the inner core 20 respectively. Then, the left side portion 11 is first folded to the top surface of the inner core 20 by a bending and wrapping device, and then a glue layer 30 is applied to the left side portion 11. Then, the right side portion 12 is also folded to the top surface of the inner core 20 by a bending and wrapping device. The left side portion 11 and the right side portion 12 are adhered and fixed to each other to wrap the inner core 20.

[0004] However, the existing bending and covering device lacks a pressing mechanism. Before the core layer 10 is bent, the core layer 10 is prone to wrinkles or bends in advance, which will affect the final covering effect and make it difficult to improve product quality. Utility Model Content

[0005] The utility model provides a bending and covering device for a sanitary napkin, which can reduce the occurrence of wrinkles or premature bending of a core layer and improve product quality.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] The embodiment of the utility model provides a sanitary towel's folding and covering device, including vertical setting's support board, the side surface of support board is fixed with conveying assembly, first pressure covering subassembly, second pressure covering subassembly, third pressure covering subassembly and gumming subassembly, the conveying assembly is used for conveying the core layer fixed with inner core, the conveying assembly is fixed with left side folding subassembly and right side folding subassembly, first pressure covering subassembly, second pressure covering subassembly, left side folding subassembly, gumming subassembly, third pressure covering subassembly and right side folding subassembly are sequentially arranged along the conveying direction of conveying assembly, first pressure covering subassembly includes two first pressure wheels, and two first pressure wheels are used for pressing on the left side and right side of core layer respectively, second pressure covering subassembly includes second pressure wheel, and second pressure wheel is used for pressing on inner core, left side folding subassembly is used for folding left side to the top surface of inner core, gumming subassembly is used for gumming on left side, third pressure covering subassembly includes third pressure wheel, and third pressure wheel is used for pressing on right side, and right side folding subassembly is used for folding right side to the top surface of inner core to be pasted together with left side.

[0008] In some embodiments, the first pressure covering assembly further comprises a first fixed rod, one end of the first fixed rod is fixed on the support plate, and the axial direction of the first fixed rod is parallel to the width direction of the core layer, both first pressure wheels are sleeved on the first fixed rod and can adjust the position along the axial direction of the first fixed rod.

[0009] In some embodiments, the first fixed rod is a threaded rod, and both sides of the first pressure wheel are provided with nuts, and the nuts are threadedly connected with the first fixed rod.

[0010] In some embodiments, the conveying assembly is further fixed with an auxiliary pressing plate, and the auxiliary pressing plate is located between the gumming subassembly and the third pressure covering subassembly in the conveying direction of the conveying assembly, and the auxiliary pressing plate is used for pressing on the left side.

[0011] In some embodiments, the conveying assembly comprises two parallel conveying plates, a plurality of rollers arranged between the two conveying plates, a conveyor belt sleeved on the rollers, and a conveying drive mechanism for driving at least one roller to rotate, and the core layer fixed with the inner core is placed on the conveyor belt.

[0012] In some embodiments, the left side folding subassembly comprises a left pressing plate fixed on the top of the conveying plate, a preset gap is formed between the left pressing plate and the conveyor belt, and the right side surface of the left pressing plate gradually protrudes to the right side in the conveying direction of the conveying assembly.

[0013] In some embodiments, the left pressing plate is detachably fixed on the conveying plate.

[0014] In some embodiments, the right bending assembly comprises a right pressing plate fixed on the top of the conveying plate, and a preset gap is formed between the right pressing plate and the conveying belt, and the left side surface of the right pressing plate gradually protrudes to the left side in the conveying direction of the conveying assembly.

[0015] In some embodiments, the right pressing plate is detachably fixed on the conveying plate.

[0016] The utility model has at least the following beneficial effects: the utility model adds first pressure cover subassembly, second pressure cover subassembly and third pressure cover subassembly on the basis of traditional sanitary towel's bending and covering device, two first pressure wheels of first pressure cover subassembly are used for pressing on left side portion and right side portion of core layer respectively, reduces the situation that left side portion appears wrinkle or bending in advance before bending left side portion, the second pressure wheel of second pressure cover subassembly is used for pressing on inner core to better positioning inner core, the third pressure wheel of third pressure cover subassembly is used for pressing on right side portion, reduces the situation that right side portion appears wrinkle or bending in advance before bending right side portion, thereby greatly reduces the situation that core layer appears wrinkle or bending in advance, makes core layer can cover inner core smoothly, improves the product quality of sanitary towel. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the process schematic view of core layer wrapping inner core in prior art;

[0018] Figure 2 It is the structure schematic view of sanitary towel's bending and covering device of one embodiment of the utility model;

[0019] Figure 3 It is the structure schematic view of bending of sanitary towel's bending and covering device of one embodiment of the utility model to core layer;

[0020] Figure 4 It is the cross section schematic view of left pressing plate when bending left side portion of one embodiment of the utility model.

[0021] Wherein, the reference signs are:

[0022] Core layer 10, left side portion 11, right side portion 12, inner core 20, glue layer 30;

[0023] Conveying assembly 100;

[0024] First pressure cover subassembly 210, first pressure wheel 211, first fixed rod 212, nut 213, second pressure cover subassembly 220, second pressure wheel 221, third pressure cover subassembly 230, third pressure wheel 231;

[0025] Gluing assembly 300;

[0026] Left side bending assembly 410, left pressing plate 411, right side bending assembly 420, right pressing plate 421;

[0027] The auxiliary pressing plate 500. DETAILED DESCRIPTION

[0028] The present application provides the following description with reference to the accompanying drawings to help comprehensively understand various embodiments of the present application as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as merely exemplary. Therefore, those skilled in the art will recognize various changes and modifications to the various embodiments described herein without departing from the scope and spirit of the present application.

[0029] In the description of the present application, the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0030] It should be understood that when one element (e.g., a first element) is "connected" to another element (e.g., a second element), the element can be directly connected to the other element, or there can be an intervening element (e.g., a third element) between the element and the other element.

[0031] The embodiment of the present application provides a folding and covering device for sanitary napkins, as shown in Figure 2 The support plate is vertically arranged and provides mounting positions for other components. The side surface of the support plate is fixed with a conveying assembly 100, a first pressing and covering assembly 210, a second pressing and covering assembly 220, a third pressing and covering assembly 230, and a gluing assembly 300. The conveying assembly is used to convey the core layer 10 fixed with the inner core 20. At this time, the inner core 20 and the core layer 10 form the state shown in the upper left corner of Figure 1 The bottom surface of the inner core 20 can be fixed on the core layer 10.

[0032] The left bending assembly 410 and the right bending assembly 420 are fixed to the conveying assembly 100. The first pressing assembly 210, the second pressing assembly 220, the left bending assembly 410, the gluing assembly 300, the third pressing assembly 230 and the right bending assembly 420 are sequentially arranged along the conveying direction of the conveying assembly 100. The first pressing assembly 210 includes two first pressing wheels 211, which are used to press on the left side 11 and the right side 12 of the core-wrapped layer respectively. The second pressing assembly 220 includes a second pressing wheel 221, which is used to press on the inner core 20. That is, before the left bending assembly 410 bends the left side 11, the two first pressing wheels 211 are respectively pressed on the left side 11 and the right side 12 of the core-wrapped layer to reduce the situation where the left side 11 is wrinkled or bent in advance. The second pressing wheel 221 is pressed on the inner core 20 to stabilize the positioning of the inner core 20 and prevent the bent left side 11 from being taken away from the conveying assembly 100. The left bending assembly 410 is used to bend the left side 11 to the top surface of the inner core 20, forming a shape as shown in FIG. Figure 1 The glue-spreading component 300 is used to apply glue on the left side 11 to form the following state: Figure 1 The third pressing component 230 includes a third pressing wheel 231, which is used to press on the right side portion 12, that is, before the right bending component 420 bends the right side portion 12, the third pressing wheel 231 presses on the right side portion 12 to reduce the situation where the right side portion 12 is wrinkled or bent in advance. The right bending component 420 is used to bend the right side portion 12 to the top surface of the inner core 20. Since the top surface of the inner core 20 has been bent with the left side portion 11, and the left side portion 11 is coated with glue, the left side portion 12 can be pasted together with the right side portion 11 to form a Figure 1 The icon status in the lower left corner.

[0033] Therefore, this embodiment can greatly reduce the occurrence of wrinkles or bends in the core wrap layer 10 in advance, so that the core wrap layer 10 can smoothly cover the inner core 20, thereby improving the product quality of the sanitary napkin.

[0034] In some embodiments, the first pressing wheel 211 , the second pressing wheel 221 and the third pressing wheel 231 can all rotate so that the conveying assembly 100 can smoothly convey the core cladding layer 10 and the inner core 20 while pressing the product.

[0035] In some embodiments, the first pressing assembly 210 further comprises a first fixed rod 212, one end of the first fixed rod 212 is fixed on the support plate, and the axial direction of the first fixed rod 212 is parallel to the width direction of the core layer, that is, perpendicular to the conveying direction of the conveying assembly 100, both first pressing wheels 211 are sleeved on the first fixed rod 212 and can be adjusted in position along the axial direction of the first fixed rod 212, thereby changing the distance between the two first pressing wheels 211, so that the inner core 20 of different widths and / or thicknesses can be adapted, and the bending and covering of products of various specifications can be carried out, thereby widening the application range.

[0036] Further, the first fixed rod 212 is a threaded rod, both sides of the first pressing wheel 211 are provided with nuts 213, the nuts 213 are threadedly connected with the first fixed rod 212, by tightening the two nuts 213, the first pressing wheel 211 can be locked and fixed in the axial direction of the first fixed rod 212, and when the two nuts 213 are loosened, the first pressing wheel 211 can be adjusted in position along the axial direction of the first fixed rod 212.

[0037] In order to enable the first pressing wheel 211 to rotate, the first pressing wheel 211 can be connected with the first fixed rod 212 through a bearing, and the nut 213 can be locked outside the bearing, which can lock and fix the first pressing wheel 211 in the axial direction of the first fixed rod 212, and also does not limit the rotation of the first pressing wheel 211.

[0038] In some embodiments, the second pressing assembly 220 can comprise a second fixed rod, one end of the second fixed rod is fixed on the support plate, and the axial direction of the second fixed rod is parallel to the width direction of the core layer, and the second pressing wheel 221 is detachably fixed on the second fixed rod, so that different second pressing wheels 221 can be replaced to adapt to the inner core 20 of different widths and / or thicknesses, thereby widening the application range.

[0039] In some embodiments, the third pressing assembly 230 can comprise a third fixed rod, one end of the third fixed rod is fixed on the support plate, and the axial direction of the third fixed rod is parallel to the width direction of the core layer, and the third pressing wheel 231 is detachably fixed on the third fixed rod, so that different third pressing wheels 231 can be replaced to adapt to the right side part 12 of different widths and / or thicknesses, thereby widening the application range.

[0040] In order to enable the second pressing wheel 221 and the third pressing wheel 231 to rotate, the second pressing wheel 221 can be connected with the second fixed rod through a bearing, and the third pressing wheel 231 can also be connected with the third fixed rod through a bearing.

[0041] In some embodiments, the conveying assembly 100 further has a second pressing plate 500 fixed thereon, which is located between the glue applying assembly 300 and the third pressing assembly 230 in the conveying direction of the conveying assembly 100, and is used to press against the left side portion 11. After the left side portion 11 is bent by the left side bending assembly 410 to the top of the inner core 20, the second pressing plate 500 presses against the left side portion 11, which can prevent the left side portion 11 from being warped, and ensure that the right side portion 12 can be overlapped on the left side portion 11 smoothly.

[0042] It should be noted that, since the glue applying assembly 300 applies glue to the right side of the left side portion 11, the second pressing plate 500 presses against the left side of the left side portion 11, so as not to contact the glue.

[0043] In some embodiments, the conveying assembly 100 includes two conveying plates arranged in parallel, a plurality of rollers arranged between the two conveying plates, a conveying belt sleeved on the rollers, and a conveying driving mechanism for driving at least one roller to rotate. The core layer with the inner core 20 placed thereon is placed on the conveying belt. The conveying driving mechanism drives the rollers to rotate, and correspondingly drives the conveying belt to rotate, so that the conveying belt can convey the product placed thereon.

[0044] Since the sanitary napkin production line is relatively long, a plurality of conveying belts can be arranged in series to ensure that the product can be conveyed smoothly.

[0045] In some embodiments, the left side bending assembly 410 includes a left pressing plate 411 fixed on the top of the conveying plate. A predetermined gap is formed between the left pressing plate 411 and the conveying belt, so that the inner core 20 and the core layer below the inner core 20 can pass through the gap. In the conveying direction of the conveying assembly 100, the right side surface of the left pressing plate 411 gradually protrudes to the right side, so that the entire left pressing plate 411 forms a trapezoidal structure. Before the conveying assembly 100 formally works, the staff needs to pull the inner core 20 and the core layer to pass through the gap, and bend the left side portion 11, so that the left side portion 11 abuts against the right side surface of the left pressing plate 411, and forms a state as shown in FIG. 4B. Figure 4 Since the right side surface of the left pressing plate 411 gradually protrudes to the right side, correspondingly, the left side portion 11 abutting against the right side surface of the left pressing plate 411 will gradually be bent to the top surface of the inner core 20, and thus be bent to the top surface of the inner core 20, and form a state as shown in FIG. 4C. Figure 3 Afterwards, when the conveying assembly 100 works, the inner core 20 and the core layer continuously pass through the gap, and the left side portion 11 will be bent to the top surface of the inner core 20.

[0046] Further, the left pressing plate 411 is detachably fixed on the conveying plate, so that the left pressing plate 411 can be replaced to adapt to the left side portion 11 with different widths and / or thicknesses. The left pressing plate 411 can be fixed on the conveying plate by screws.

[0047] In some embodiments, the right bending assembly 420 comprises a right pressing plate 421 fixed on the top of the conveying plate, and a preset gap is formed between the right pressing plate 421 and the conveying belt, so that the inner core 20 and the core layer below the inner core 20 can pass through the gap, and the left side of the right pressing plate 421 gradually protrudes to the left in the conveying direction of the conveying assembly 100, so that the whole right pressing plate 421 forms a trapezoidal structure. Before the conveying assembly 100 formally works, the staff needs to pull the inner core 20 and the core layer to pass through the gap, and bend the right side 12, so that the right side 12 abuts against the left side of the right pressing plate 421. Since the left side of the right pressing plate 421 gradually protrudes to the left, correspondingly, the right side 12 abutting against the left side of the right pressing plate 421 will gradually bend to the left side 11 of the top surface of the inner core 20, thereby overlapping on the left side 11, forming a state as shown in Figure 3 Afterwards, when the conveying assembly 100 works, the inner core 20 and the core layer are continuously conveyed to pass through the gap, and the right side 12 will be bent to overlap on the left side 11.

[0048] Further, the right pressing plate 421 is detachably fixed on the conveying plate, so that the right pressing plate 421 can be replaced to adapt to right sides 12 of different widths and / or thicknesses. Wherein, the right pressing plate 421 can be fixed on the conveying plate by screws.

[0049] The terms and words used in the above description and claims are not limited to the literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present application. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the present application is provided only for illustration, not for limitation, of the present application as defined by the appended claims and their equivalents.

Claims

1. A sanitary napkin folding and wrapping apparatus characterized by: The vertical support plate is provided with a conveying assembly, a first pressing assembly, a second pressing assembly, a third pressing assembly and a glue applying assembly; the conveying assembly is used for conveying a core-sheath layer with an inner core; the conveying assembly is provided with a left bending assembly and a right bending assembly; the first pressing assembly, the second pressing assembly, the left bending assembly, the glue applying assembly, the third pressing assembly and the right bending assembly are sequentially arranged along the conveying direction of the conveying assembly; the first pressing assembly comprises two first pressing wheels which are used for pressing the left side and the right side of the core-sheath layer respectively; the second pressing assembly comprises a second pressing wheel which is used for pressing the inner core; the left bending assembly is used for bending the left side to the top surface of the inner core; the glue applying assembly is used for applying glue on the left side; the third pressing assembly comprises a third pressing wheel which is used for pressing the right side; and the right bending assembly is used for bending the right side to the top surface of the inner core so as to be pasted with the left side.

2. The sanitary napkin folding and wrapping apparatus of claim 1 wherein: The first pressing assembly further comprises a first fixing rod, one end of the first fixing rod is fixed on the support plate, and the axial direction of the first fixing rod is parallel to the width direction of the core-sheath layer; and the two first pressing wheels are sleeved on the first fixing rod and can be adjusted in position along the axial direction of the first fixing rod.

3. The sanitary napkin folding and wrapping apparatus of claim 2 wherein: The first fixing rod is a threaded rod, and the two sides of the first pressing wheel are provided with nuts which are threadedly connected with the first fixing rod.

4. The sanitary napkin folding and wrapping apparatus of claim 1 wherein: The conveying assembly is further provided with an auxiliary pressing plate, the auxiliary pressing plate is located between the glue applying assembly and the third pressing assembly along the conveying direction of the conveying assembly, and the auxiliary pressing plate is used for pressing the left side.

5. The sanitary napkin folding and wrapping apparatus of claim 1 wherein: The conveying assembly comprises two parallel conveying plates, a plurality of roller shafts arranged between the two conveying plates, a conveying belt sleeved on the roller shafts and a conveying driving mechanism for driving at least one roller shaft to rotate, and the core-sheath layer with the inner core is placed on the conveying belt.

6. The sanitary napkin folding and wrapping apparatus of claim 5 wherein: The left bending assembly comprises a left pressing plate fixed on the top of the conveying plate, a preset gap is formed between the left pressing plate and the conveying belt, and the right side surface of the left pressing plate gradually protrudes to the right side along the conveying direction of the conveying assembly.

7. The sanitary napkin folding and wrapping apparatus of claim 6 wherein: The left pressing plate is detachably fixed on the conveying plate.

8. The sanitary napkin folding and wrapping apparatus of claim 5 wherein: The right bending assembly comprises a right pressing plate fixed on the top of the conveying plate, a preset gap is formed between the right pressing plate and the conveying belt, and the left side surface of the right pressing plate gradually protrudes to the left side along the conveying direction of the conveying assembly.

9. The sanitary napkin folding and wrapping apparatus of claim 8 wherein: The right pressing plate is detachably fixed on the conveying plate.

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