Nipple preparation device and method

Abstract

The embodiment of the present application provides a breast pad preparation device, comprising: a supporting seat; a pre-pressing assembly, comprising a first pressing roller and a second pressing roller, a pre-pressing gap being formed between the first pressing roller and the second pressing roller, the first pressing roller and the second pressing roller being synchronously rotated to pre-press a breast pad blank passing through the pre-pressing gap into a breast pad semi-finished product with a shape matched with that of the pre-pressing gap; and a folding assembly, having an s-shaped folding channel for the breast pad semi-finished product to pass through, the folding assembly being capable of folding three parts of the breast pad semi-finished product corresponding to the first gap, the second gap and the third gap at the connecting part to obtain a breast pad body, on the one hand, pre-pressing and folding are performed twice, so that the probability of material damage is reduced, on the other hand, the pre-pressing is performed by using the rotating roller body, so that the efficiency is greatly improved, meanwhile, the pre-pressing clamping feeding process makes the folding process of the folding assembly more stable and smooth.

Description

Technical Field

[0001] This invention relates to a breast pad preparation apparatus and a method for preparing breast pads using the apparatus. Background Technology

[0002] Breast pads are a type of maternity and baby product designed to prevent breast milk leakage during lactation. With the continuous improvement of people's living standards, their use has become increasingly widespread. To achieve a lightweight packaging form or a three-dimensional shape, existing breast pads often require folding. Typically, folding boards are used to achieve the desired folding shape. However, based on practical needs, a folding form resembling an "Ω" shape has been developed. This folding form has four creases. Furthermore, due to the relatively large thickness of the breast pads, when using existing folding methods, it is difficult to achieve the desired shape. Moreover, the large thickness and high resilience of the breast pads cause the folded product to easily spring back and fail to maintain its shape.

[0003] To address this, patent document CN214569642U, entitled "Breast Pad Folding Device," discloses a novel breast pad folding device. This device utilizes a folding channel defined by a side plate between the inlet and outlet. Specifically, the folding channel forms straight first, second, and third channels on the inlet side, while on the outlet side, the first and second channels are straight, and the third channel is S-shaped. However, in practice, this method has been found to have the following problems:

[0004] First, in this configuration, the breast pad is subjected to compression during the folding process, which can easily lead to damage to the core or improper folding.

[0005] Second, in this form, the breast pad actually undergoes two or four 180° folds in one go when passing through the folding device, which makes it difficult to carry out high-speed production in practice.

[0006] Third, in this type of design, the shape of the folding channel is actually fixed and cannot be adjusted to meet the folding needs of products of different thicknesses or specifications. Summary of the Invention

[0007] Therefore, the present invention provides a breast pad preparation apparatus and a method for preparing breast pads using the apparatus to solve the above-mentioned technical problems.

[0008] A breast pad preparation apparatus, comprising:

[0009] Support base;

[0010] A pre-compression assembly includes a first pressure roller and a second pressure roller, both rotatably connected to the support frame, with a pre-compression gap formed between them. The pre-compression gap includes a first section, a second section, and a third section that are sequentially connected, forming a stepped shape. The first and second pressure rollers rotate synchronously to pre-compress the breast pad preform passing through the pre-compression gap into a breast pad semi-finished product with a shape matching the shape of the pre-compression gap.

[0011] The folding assembly has an S-shaped folding channel for the semi-finished breast pad to pass through. The folding assembly is capable of folding the three parts of the semi-finished breast pad corresponding to the first gap, the second gap and the third gap at the connection point to obtain the breast pad body.

[0012] The first pressure roller includes a first roller shaft portion and a first roller body portion, and the second pressure roller includes a second roller shaft portion and a second roller body portion. The first roller shaft portion is rotatably connected to a support base, and the second roller shaft portion is rotatably connected to a support base. The first roller body portion is provided with a first groove and a first protrusion located on one side of the first groove. At the same time, the second roller body portion is provided with a second protrusion and a second groove. The first groove and the second protrusion are correspondingly arranged, and the second protrusion is accommodated in the first groove. The first groove and the second protrusion are spaced apart to form a pre-pressing gap.

[0013] The pre-pressing component further includes a negative pressure shaping device, which includes a first adsorption hole on the first pressure roller connected to a negative pressure device, and a second adsorption hole on the second pressure roller connected to a negative pressure device.

[0014] The negative pressure shaping device further includes a first pipeline system connecting the first adsorption hole and the negative pressure device, and a second pipeline system connecting the second adsorption hole and the negative pressure device. The first pipeline system includes a first connecting hole on the first roller body, a first central hole and a first side hole on the first roller shaft. The first connecting hole extends from the end face of the first roller body to the inside of the first roller body and communicates with the first adsorption hole. The first central hole extends from the end face of the first roller shaft to the inside of the first roller shaft. The first side hole extends from the circumference of the first roller shaft to the inside of the first roller shaft and communicates with the first central hole. The number of first side holes corresponds to the number of first connecting holes, and the first side holes and the first connecting holes are connected by pipelines.

[0015] The folding assembly includes a base plate, an upper folding plate, a left folding plate, and a right folding plate. A portion of the right side of the left folding plate is disposed between the upper folding plate and the base plate, and a portion of the left side of the right folding plate is disposed between the upper folding plate and the base plate. The adjacent sides of the left and right folding plates are inclined, and the distance between the pair of oppositely disposed sides gradually decreases from the direction adjacent to the pre-compression assembly to the direction away from the pre-compression assembly.

[0016] The upper folding plate is provided with a first adjustment device between the upper folding plate and the bottom plate to adjust the vertical position of the upper folding plate. The left folding plate is provided with a second adjustment device to adjust the vertical position of the left folding plate. The first adjustment device includes an adjustment bolt provided between the upper folding plate and the bottom plate. The second adjustment device includes a first crossbar provided on the support base, an adjustment block provided on the crossbar, and a hanging rod provided on the adjustment block. The first crossbar is located above the upper folding plate, and the left folding plate is suspended by the adjustment block and the hanging rod.

[0017] Downstream of the folding assembly, a shaping assembly is provided, which includes an upper shaping roller and a lower shaping roller, with a gap between the upper and lower shaping rollers for the pad body to pass through.

[0018] The shaping component and the pre-compression component are provided with a transmission device so that the shaping component and the pre-compression component can be linked.

[0019] If the linear velocity of the lower shaping roller is set to n1 and the linear velocity of the second pressure roller is set to n2, then n1≥n2.

[0020] This invention also provides a method for preparing a breast pad, comprising the following steps:

[0021] S1: Provide a breast pad preform and a breast pad folding device as described in claim 1;

[0022] S2: The pre-compression component pre-compresses the breast pad blank: The breast pad blank enters the pre-compression gap, and the first pressure roller and the second pressure roller rotate synchronously to pre-compress the breast pad blank that has entered the pre-compression gap into a breast pad semi-finished product whose shape matches the shape of the pre-compression gap.

[0023] S3: The folding component folds the semi-finished breast pad to form the breast pad body: The folding component includes an S-shaped folding channel. The semi-finished breast pad is folded as it passes through the S-shaped channel to form the finished breast pad.

[0024] Beneficial Effects: This invention provides a breast pad manufacturing apparatus, comprising: a support base; a pre-compression assembly, including a first pressure roller and a second pressure roller, with a pre-compression gap formed between them, wherein the first pressure roller and the second pressure roller rotate synchronously to pre-compress a breast pad preform passing through the pre-compression gap into a breast pad semi-finished product whose shape matches the shape of the pre-compression gap; and a folding assembly, having an S-shaped folding channel for the breast pad semi-finished product to pass through, wherein the folding assembly can fold the three parts of the breast pad semi-finished product corresponding to the first gap, the second gap and the third gap at the connection point to obtain the breast pad body. On the one hand, by performing pre-compression and folding twice, the probability of material damage is reduced; on the other hand, the use of rotating rollers for pre-compression greatly improves efficiency; and at the same time, the pre-compression clamping feeding process makes the folding process of the folding assembly more stable and smooth. Attached Figure Description

[0025] Figure 1 A three-dimensional schematic diagram of the pad preparation device according to an embodiment of the present invention;

[0026] Figure 2 for Figure 1 The right view;

[0027] Figure 3 This is a schematic diagram of the folding component;

[0028] Figure 4 This is a schematic diagram of the upper roller;

[0029] Figure 5 for Figure 4 Schematic diagram of the AA section;

[0030] Figure 6 This is a schematic diagram of the lower roller;

[0031] Figure 7 A schematic diagram showing the state of the breast pad preform during pre-compression by the pre-compression component;

[0032] Figure 8 A schematic diagram showing the state of a semi-finished breast pad when folded using the folding assembly.

[0033] Figure 9 A schematic diagram of the folding component in another embodiment.

[0034] Component descriptions in the diagram:

[0035] Support base 10; Pre-compression assembly 20; Pre-compression gap 200; First gap 201; Second gap 202; Third gap 203; First pressure roller 21; First roller shaft portion 211; First center hole 2111; First side hole 2112; First roller body portion 212; First groove 2121; First protrusion 2122; First connecting hole 2123; First suction hole 2124; Second pressure roller 22; Second roller shaft portion 221; Second center hole 2211; Second side hole 2212; Second roller body portion 222; Second protrusion 2121; Second groove 2122; Second connecting hole 2223; Second suction hole 2224; Hole 2224; Position adjustment device 23; Slide 231; Actuating device 232; Spring 233; Folding assembly 30; Base plate 31; Upper folding plate 32; Adjusting bolt 321; Left folding plate 33; Inlet end 331; Right folding plate 34; First crossbar 350; Adjusting block 351; Hanging rod 352; Shaping assembly 40; Upper shaping roller 41; Lower shaping roller 42; Transmission device 43; First gear 431; Second gear 432; Third gear 433; Second crossbar 441; Adjusting rod 442; Semi-finished breast pad 51; Side area 511; Bending area 512; Middle area 513; Breast pad body 52. Detailed Implementation

[0036] Please refer to the reference. Figure 1 , Figure 2 and Figure 7 , Figure 8 The present invention provides a breast pad preparation device for forming Z-shaped or Ω-shaped folded breast pads. The breast pad preparation device includes a support base 10, a pre-compression component 20 and a folding component 30.

[0037] The pre-compression assembly 20 includes a first pressure roller 21 and a second pressure roller 22. Both the first pressure roller 21 and the second pressure roller 22 are rotatably connected to the support base 10, and a pre-compression gap 200 is formed between them. The pre-compression gap 200 includes a first gap 201, a second gap 202, and a third gap 203 connected in sequence. The first gap 201, the second gap 202, and the third gap 203 cooperate to form a step shape. The first pressure roller 21 and the second pressure roller 22 rotate synchronously to pre-compress the breast pad preform passing through the pre-compression gap 200 into a breast pad semi-finished product 51 whose shape matches the shape of the pre-compression gap 200.

[0038] Understandably, the aforementioned breast pad refers to a product formed by stacking a surface layer, an absorbent layer, and a bottom layer for absorbing emulsion. Typically, breast pads are formed into independent units after being sealed and cut. The aforementioned breast pad embryo refers to a continuous sheet-like stacked body formed by stacking the surface layer, absorbent layer, and bottom layer. The aforementioned breast pad semi-finished product 51 refers to a product formed after pre-compression, where at least a portion of the area is raised.

[0039] In this embodiment, there is a pair of the first section of gaps 201 and a pair of the second section of gaps 202. The pair of the first section of gaps 201 and the pair of the second section of gaps 202 are respectively arranged on both sides of the third section of gap 203, so that the pre-pressing gap 200 is in a "ji" shape. It can be understood that after passing through the pre-pressing gap 200, the milk pad embryo will be formed into a shape matching that of the pre-pressing gap 200. The milk pad embryo after pre-pressing is the semi-finished milk pad 51. That is, the semi-finished milk pad 51 is formed into a "ji" shape. Specifically, the semi-finished milk pad 51 includes a side area 511, a bending area 512 and a middle area 513. Among them, the middle area 513 bulges relative to the side area 511, and the bending area 512 is substantially perpendicular to the side area 511 and the middle area 513. It can be understood that the relatively bulging middle area 513 is formed by the third section of gap 203, the bending area 512 is formed by the second section of gap 202, and the side area 511 is formed by the first section of gap 201.

[0040] Further, the first section of gap 201 and the third section of gap 203 are parallel, and the second section of gap 202 is perpendicular to the first section of gap 201 and the third section of gap 203.

[0041] In addition, the pre-pressing gap 200 has a sufficient width to accommodate and apply pressure to the milk pad embryo, so that the milk pad embryo forms a predetermined shape after passing through the pre-pressing gap 200. In a preferred embodiment, the width of the first section of gap 201 is smaller than the width of the second section of gap 202.

[0042] Please refer to Figures 4-6 , in this embodiment, the first pressing roller 21 includes a first roller shaft portion 211 and a first roller body portion 212, and the second pressing roller 22 includes a second roller shaft portion 221 and a second roller body portion 222. Among them, the first roller shaft portion 211 is rotatably connected to the support seat 10, and the second roller shaft portion 221 is rotatably connected to the support seat 10. The first roller body portion 212 is provided with a first groove 2121 and first protrusions 2122 located on both sides of the first groove 2121. At the same time, the second roller body portion 222 is provided with second protrusions 2121 and second grooves 2122. Among them, the first groove 2121 and the second protrusions 2121 are arranged correspondingly, and the second protrusions 2121 are accommodated in the first groove 2121. The first protrusions 2122 and the second grooves 2122 are arranged correspondingly, and the first protrusions 2122 are accommodated in the second grooves 2122. It can be understood that there is an interval between the first groove 2121 and the second protrusions 2121, and there is also an interval between the first protrusions 2122 and the second grooves 2122, thereby forming the pre-pressing gap 200.

[0043] In order to keep the breast pad preform stable when passing through the pre-compression gap 200 and to enable the breast pad preform to form a stable breast pad semi-finished product 51, the pre-compression assembly 20 also includes a negative pressure shaping device. Specifically, the first pressure roller 21 also includes a first adsorption hole 2124 connected to the negative pressure device. When the breast pad preform passes through the pre-compression gap 200, the breast pad preform on the side adjacent to the first pressure roller 21 is adsorbed and attached to the first roller body through the first adsorption hole 2124.

[0044] Furthermore, the first adsorption hole 2124 is disposed in the first groove 2121, and the first adsorption hole 2124 extends from the bottom of the first groove 2121 towards the axial direction of the first roller body portion 212.

[0045] Furthermore, the second pressure roller 22 also includes a second adsorption hole 2224 connected to the negative pressure device. When the breast pad blank passes through the pre-compression gap 200, the breast pad blank on the side adjacent to the second pressure roller 22 is adsorbed and attached to the second roller body through the second adsorption hole 2224. The second adsorption hole 2224 extends in the opposite direction to the first adsorption hole 2124, and the second adsorption hole 2224 is disposed in the second groove 2122.

[0046] Understandably, in this situation, when the breast pad preform passes through the pre-compression gap 200, it is subjected to the squeezing action of the pre-compression gap 200 on the one hand, and on the other hand, the first adsorption hole 2124 adsorbs the breast pad preform located in the third gap 203 towards the first pressure roller 21. At the same time, the second adsorption hole 2224 adsorbs the breast pad preform located in the first gap towards the second pressure roller 22. That is, the breast pad preform is subjected to two forces in opposite directions, which makes it easy for the breast pad preform to form a shape that matches the pre-compression gap 200 and the shape is easy to maintain.

[0047] Furthermore, the negative pressure shaping device also includes a first piping system connecting the first adsorption hole 2124 to the negative pressure device and a second piping system connecting the second adsorption hole 2224 to the negative pressure device. The first piping system includes a first connecting hole 2123 on the first roller body 212, a first central hole 2111 and a first side hole 2113 on the first roller shaft 211. The first connecting hole 2123 extends from the end face of the first roller body 212 towards the inner side of the first roller body 212 and communicates with the first adsorption hole 2124. The first central hole 2111 extends from the end face of the first roller body 212 towards the inner side of the first roller body 212 and communicates with the first adsorption hole 2124. The end face of the first roller shaft portion 211 extends into the inner side of the first roller shaft portion 211. The first side hole 2113 extends from the circumference of the first roller shaft portion 211 into the inner side of the first roller shaft portion 211 and communicates with the first central hole 2111. The number of the first side holes 2113 corresponds to the number of the first connecting holes 2123. The first side holes 2113 and the first connecting holes 2123 are connected by a pipe. When the pipe passes through the first central hole 2111 and the negative pressure device, in this case, the first pressure roller 21 can maintain the first adsorption hole 2124 to form an adsorption and negative pressure effect during rotation.

[0048] Furthermore, the axis of the first connecting hole 2123 is parallel to the axis of the first pressure roller 21, and the axis of the first central hole 2111 is collinear with the axis of the first pressure roller 21.

[0049] Furthermore, the first side hole 2113 is inclined, and the angle between the axis of the first side hole 2113 and the axis of the first central hole 2111 is 60°-80°.

[0050] Similarly, a second connecting hole 2223 is provided on the second roller body 222, and a second central hole 2211 and a second side hole 2212 are provided on the second roller shaft 221. The second connecting hole 2223 is connected to the second adsorption hole 2224, the second side hole 2212 is connected to the second central hole 2211, and the second side hole 2212 is pipe-connected to the second connecting hole 2223, and they are provided in a one-to-one correspondence.

[0051] Furthermore, a coating layer is provided on the first protrusion 2122 of the first roller body portion 212, and the coating layer is silicone or polyurethane.

[0052] The folding component 30 is located downstream of the pre-compression component 20 and has an S-shaped folding channel for the breast pad semi-finished product 51 to pass through. The folding component 30 can fold the three parts of the breast pad semi-finished product 51 corresponding to the first section 201, the second section 202 and the third section 203 at the connection point to obtain the breast pad semi-finished product 51.

[0053] Specifically, the folding assembly 30 described in this embodiment includes a base plate 31, an upper folding plate 32, a left folding plate 33, and a right folding plate 34, which should be referred to in conjunction with these components. Figure 3 The left folding plate 33 is located to the left of the base plate 31, and a portion of the right side of the left folding plate 33 is disposed between the upper folding plate 32 and the base plate 31, thereby forming an S-shaped folding channel on the left. The right folding plate 34 is disposed to the right of the base plate 31, and a portion of its left side is disposed between the upper folding plate 32 and the base plate 31, thereby forming an S-shaped folding channel on the right. For ease of description, the portion of the S-shaped channel located above the left side of the upper folding plate 32 is called the first channel on the left, the portion located between the upper folding plate 32 and the left folding plate 33 is called the second channel on the left, and the portion between the left folding plate 33 and the base plate 31 is called the third channel on the left. When the breast pad semi-finished product 51 enters the folding assembly 30, the middle area 513 is located in the first channel on the left, the bending area 512 enters the second channel on the left, and the side area 511 enters the third channel on the left, thereby forming the folded portion on the left side of the breast pad. Similarly, the folded portion on the right side of the breast pad can be formed.

[0054] It is understood that the adjacent sides of the left folding plate 33 and the right folding plate 34 are inclined, and the distance between the pair of oppositely arranged sides gradually decreases from the direction of the adjacent pre-compression component 20 to the direction away from the pre-compression component 20, so that the bending area 512 is gradually squeezed by the pair of sides, and formed from an upright state to a shape attached to the middle area 513 and the side area 511.

[0055] In this embodiment, a first adjustment device is provided between the upper folding plate 32 and the bottom plate 31, and a second adjustment device is provided on the left folding plate 33, for adjusting the vertical position of the upper folding plate 32 and the vertical position of the left folding plate 33, thereby adjusting the interval of the first channel, the second channel, and the third channel to accommodate breast pad semi-finished products 51 of different thicknesses and to form breast pad semi-finished products 51 of different thicknesses. The first adjustment device includes an adjustment bolt 321 disposed between the upper folding plate 32 and the bottom plate 31. One end of the adjustment bolt 321 is connected to the upper folding plate 32, and the other end passes through the bottom plate 31. In this way, the upper folding plate 32 serves as the adjustment bolt. 321 is supported on the base plate 31. In this case, there are no obstructing parts above the upper folding plate 32, so that the middle area 513 can be defined by the upper folding plate 32 and pass smoothly through the third channel. The second adjustment device includes a first crossbar 350 set on the support base 10, an adjustment block 351 set on the crossbar, and a hanging rod 352 set on the adjustment block 351. The first crossbar 350 is set above the upper folding plate 32, so that the left folding plate 33 is suspended by the adjustment block 351 and the hanging rod 352. In this case, there are no obstructions between the base plate 31 and the left folding plate 33, so that the side area 511 can pass smoothly through the left first channel.

[0056] Furthermore, the adjusting block 351 is sleeved on the first crossbar 350, so that the adjusting block 351 can be adjusted in position along the extension direction or circumferential direction of the first crossbar 350. The hanging rod 352 is L-shaped, with one end set on the adjusting block 351 and the other end connected to the left folding plate 33 in a horizontal direction. In this case, the tilt angle of the left folding plate 33 can be adjusted.

[0057] Furthermore, the width of the upper folding plate 32 is approximately equal to the width of the first groove 2121, so that when the breast pad body 52 is formed from the breast pad semi-finished product 51, the width of the middle region 513 remains unchanged.

[0058] Furthermore, the left folding plate 33 includes an entry end 331 adjacent to the pre-compression assembly 20, the entry end 331 being arc-shaped.

[0059] Furthermore, the pre-compression component 20 also includes a position adjustment device 23 to adjust the pre-compression shape of the breast pad embryo. Specifically, the position adjustment device 23 includes a slide 231 and an actuating device 232. The slide 231 is movably mounted on the support base 10, and the actuating device 232 is configured to adjust the position of the slide 231 in the vertical direction. In this embodiment, the actuating device 232 is a lead screw and nut device.

[0060] Furthermore, the actuating device 232 is elastically connected to the slide 231. Specifically, the actuating device 232 and the slide 231 include a connecting seat and a spring 233. The connecting seat includes a pair of support plates. The spring 233 is disposed between the support plates and the slide 231. A bolt passes through the support plates and is threaded onto the slide 231.

[0061] Furthermore, the support base 10 is also provided with a guide rod, and the slide 231 passes through the guide rod.

[0062] Furthermore, a shaping component 40 is provided downstream of the folding component 30 for applying pressure to and shaping the formed breast pad body 52. ​​The shaping component 40 includes an upper shaping roller 41 and a lower shaping roller 42. A gap is provided between the upper shaping roller 41 and the lower shaping roller 42 for the breast pad body 52 to pass through. When the breast pad body 52 passes through the gap, it is subjected to pressure from the shaping component 40, thereby fixing its folded shape.

[0063] Furthermore, a transmission device 43 is provided between the shaping component 40 and the pre-pressing component 20 to enable the shaping component 40 and the pre-pressing component 20 to be linked. Specifically, the lower shaping roller 42 is linked with the second pressure roller 22. The transmission device 43 includes a first gear 431 on the second pressure roller 22, a second gear 432 on the lower shaping roller 42, and a third gear 433 between the first gear 431 and the second gear 432. The third gear 433 meshes with the first gear 431, and the second gear 432 meshes with the third gear 433, so that when the second pressure roller 22 rotates, the lower shaping roller 42 rotates synchronously.

[0064] Furthermore, if the linear velocity of the lower shaping roller 42 is set to n1 and the linear velocity of the second pressure roller 22 is set to n2, then n1≥n2. In this case, the shaping component 40 forms a tension on the folded breast pad body 52 located between the shaping component 40 and the pre-pressing component 20, thereby keeping the breast pad body 52 flat during the folding process.

[0065] Furthermore, with n1 / n2 between 1.05 and 1.2, in this case, on the one hand, the shaping component 40 forms tension on the folded breast pad body 52, and on the other hand, the material is not damaged due to excessive tension.

[0066] It is understood that in other embodiments, the transmission device 43 may use other transmission methods, such as synchronous pulleys and synchronous belts, which are not limited here.

[0067] Furthermore, the shaping component 40 also includes an adjustment device for adjusting the gap between the upper shaping roller 41 and the lower shaping roller 42. In this embodiment, the adjustment device includes a second crossbar 441 and an adjustment rod 442. The upper shaping roller 41 is mounted on the adjustment rod 442, and one end of the adjustment rod 442 is engaged with the second crossbar 441. The gap between the upper shaping roller 41 and the lower shaping roller 42 is adjusted by adjusting the angle of the adjustment rod 442.

[0068] Please refer to Figure 9 ,exist Figure 9 The image shows another embodiment of a breast pad preparation apparatus in which the folding assembly includes only a base plate, an upper folding plate, and a left folding plate, without a right folding plate. In this case, only an S-shaped channel is formed, thereby making the formed breast pad body Z-shaped.

[0069] Understandably, in this embodiment, the first pressure roller in the pre-pressing assembly is provided with only one first protrusion and a corresponding one, and the second pressure roller is provided with only one second groove corresponding to the first protrusion.

[0070] Furthermore, the present invention also provides a method for preparing a breast pad, comprising the following steps:

[0071] S1: Provides a breast pad preform and the aforementioned breast pad folding device;

[0072] S2: The pre-compression component 20 pre-compresses the breast pad blank. Specifically, the breast pad blank enters the pre-compression gap 200, and the first pressure roller 21 and the second pressure roller 22 rotate synchronously to pre-compress the breast pad blank that enters the pre-compression gap 200 into a breast pad semi-finished product 51 whose shape matches the shape of the pre-compression gap 200.

[0073] S3: The folding component 30 folds the breast pad semi-finished product 51 to form the breast pad body 52. ​​The folding component 30 includes an S-shaped folding channel. When the breast pad semi-finished product 51 passes through the S-shaped channel, it is folded to form the finished breast pad.

[0074] Furthermore, after step S3, the process also includes a step of shaping the breast pad body 52 by means of the shaping component 40. Specifically, the shaping component 40 includes a gap formed by the upper shaping roller 41 and the lower shaping roller 42. When the breast pad body 52 passes through the gap, it is subjected to pressure and shaped.

[0075] It can be observed that the above-described breast pad folding device and method overcome the shortcomings of existing devices and have the following effects: Firstly, by pre-compressing the breast pad blank using the pre-compressing component 20, the breast pad blank is first bent to form a bending area 512. Then, when folded by the folding component 30, the pre-compressing and folding actions are performed in two separate steps, resulting in less stress on the material and thus reducing the probability of material damage. This is especially true for thicker products, where the core compression effect is significantly reduced. Secondly, because the pre-compressing in this invention uses rotating rollers, the pre-compressing efficiency is high. Since the pre-compression process is actually a clamping and feeding process, when combined with the shaping process at the rear end, a tension is formed, which makes the folding process of the folding component 30 more stable and smooth, and less likely to cause material wrinkles or material accumulation. Under these circumstances, the efficiency of the pre-compression-folding-shaping process is greatly improved. In practice, compared with a single folding and forming process, the efficiency is more than twice that of the previous process, and the actual operating efficiency reaches more than 500 pis / min, which far exceeds the efficiency of the existing technology. At the same time, the number of products with poor folding is reduced by more than 15%.

[0076] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A breast pad preparation apparatus, characterized in that, Support base; The pre-compression assembly includes a first pressure roller and a second pressure roller. Both the first pressure roller and the second pressure roller are rotatably connected to the support base, and a pre-compression gap is formed between them. The pre-compression gap includes a first gap, a second gap, and a third gap that are connected in sequence. The first gap, the second gap, and the third gap cooperate to form a step shape. The first pressure roller and the second pressure roller rotate synchronously to pre-compress the breast pad preform passing through the pre-compression gap into a breast pad semi-finished product whose shape matches the shape of the pre-compression gap. and The folding assembly has an S-shaped folding channel for the semi-finished breast pad to pass through. The folding assembly is capable of folding the three parts of the semi-finished breast pad corresponding to the first section, the second section, and the third section at the connection point to obtain the breast pad body. The first pressure roller includes a first roller shaft portion and a first roller body portion; the second pressure roller includes a second roller shaft portion and a second roller body portion; the pre-pressing assembly further includes a negative pressure shaping device, which includes a first suction hole on the first pressure roller connected to a negative pressure device, and a second suction hole on the second pressure roller connected to a negative pressure device. The negative pressure shaping device further includes a first pipeline system connecting the first adsorption hole and the negative pressure device, and a second pipeline system connecting the second adsorption hole and the negative pressure device. The first pipeline system includes a first connecting hole on the first roller body, a first central hole and a first side hole on the first roller shaft. The first connecting hole extends from the end face of the first roller body towards the inside of the first roller body and communicates with the first adsorption hole. The first central hole extends from the end face of the first roller shaft towards the inside of the first roller shaft. The first side hole extends from the circumference of the first roller shaft towards the inside of the first roller shaft and communicates with the first central hole. The number of first side holes corresponds to the number of first connecting holes, and the first side holes and the first connecting holes are connected by pipelines. A shaping component is also provided downstream of the folding assembly. The shaping component includes an upper shaping roller and a lower shaping roller. A gap is provided between the upper and lower shaping rollers for the breast pad body to pass through; a transmission device is provided between the shaping component and the pre-pressing component to enable the shaping component and the pre-pressing component to be linked; if the linear velocity of the lower shaping roller is n1 and the linear velocity of the second pressure roller is n2, then n1≥n2; the first roller shaft is rotatably connected to the support base, and the second roller shaft is rotatably connected to the support base; the first roller body is provided with a first groove and a first protrusion located on one side of the first groove; at the same time, the second roller body is provided with a second protrusion and a second groove; the first groove and the second protrusion are correspondingly arranged, and the second protrusion is accommodated in the first groove; the first groove and the second protrusion are spaced apart, and the first protrusion and the second groove are spaced apart to form a pre-pressing gap.

2. The pad preparation apparatus as described in claim 1, characterized in that, The folding assembly includes a base plate, an upper folding plate, a left folding plate, and a right folding plate. A portion of the right side of the left folding plate is disposed between the upper folding plate and the base plate, and a portion of the left side of the right folding plate is disposed between the upper folding plate and the base plate. The adjacent sides of the left and right folding plates are inclined, and the distance between the adjacent sides gradually decreases from one end adjacent to the pre-compression assembly to the end away from the pre-compression assembly.

3. The pad preparation apparatus as described in claim 2, characterized in that, A first adjustment device is provided between the upper folding plate and the bottom plate to adjust the vertical position of the upper folding plate. A second adjustment device is provided on the left folding plate to adjust the vertical position of the left folding plate. The first adjustment device includes an adjustment bolt provided between the upper folding plate and the bottom plate. The second adjustment device includes a first crossbar provided on the support base, an adjustment block provided on the crossbar, and a hanging rod provided on the adjustment block. The first crossbar is located above the upper folding plate, and the left folding plate is suspended by the adjustment block and the hanging rod.

4. A method for preparing a breast pad, characterized in that, Includes the following steps: S1: Provides a breast pad preform and the breast pad preparation apparatus as described in claim 1; S2: The pre-compression component pre-compresses the breast pad blank: The breast pad blank enters the pre-compression gap, and the first pressure roller and the second pressure roller rotate synchronously to pre-compress the breast pad blank that has entered the pre-compression gap into a breast pad semi-finished product whose shape matches the shape of the pre-compression gap. S3: Folding component folds the breast pad semi-finished product to form the breast pad body: The folding component includes an S-shaped folding channel. When the breast pad semi-finished product passes through the S-shaped channel, it is folded to form the finished breast pad.

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