Anti-deformation polymer blank structure

Abstract

The utility model discloses an anti-deformation's high molecule blanking structure belongs to sanitary product processing technical field, including adjustable T type with groovy blanking plate, blanking roller, adjustable T type with groovy blanking plate is equipped with from top to bottom through blanking groove, and the blanking roller is located below blanking groove bottom and both ends swing joint has fixed bolster, and one end of blanking roller is equipped with drive structure, adjustable T type with groovy blanking plate width direction's both sides are equipped with center boss and support boss, and the distance between center boss and adjustable T type with groovy blanking plate length direction end is a, when a is less than or equal to 600mm, and one piece of support boss is equipped between center boss and one end of adjustable T type with groovy blanking plate length direction, when a is greater than 600mm, and at least one piece of support boss is equipped between center boss and both ends of adjustable T type with groovy blanking plate length direction, the utility model discloses can avoid adjustable T type with groovy blanking plate and make high molecule can evenly carry out sowing and broadcasting to appear bending deformation.

Description

Technical Field

[0001] This utility model relates to the field of hygiene product processing technology, specifically to a deformation-resistant polymer feeding structure. Background Technology

[0002] In the production and processing of hygiene products such as diapers and sanitary napkins, the quality of the core is an important factor that determines the absorbency and comfort of the hygiene products. Currently, most hygiene products mainly use polymers to absorb and lock in liquids inside the core. The polymer is a super absorbent resin. The polymer needs to be evenly distributed inside the core to avoid liquid backflow caused by weak water absorption in some areas of the core. It can also prevent clumping, breakage and other phenomena caused by the core absorbing liquid. Currently, some polymer spreading devices use rollers with grooved surfaces to spread polymers. The polymer hopper in the spreading device has an opening at the bottom, allowing the polymer to slide into the grooves on the roller surface. The roller rotates, gradually transferring the polymer downwards from the grooves, finally spreading it onto the surface of a continuously conveying non-woven fabric or fluffy cotton below. During the spreading process, the polymer capacity inside the hopper gradually decreases, and the pressure exerted by the polymers on the bottom opening of the hopper by their own gravity also changes accordingly. This can easily lead to instability in the amount of polymer discharged from the bottom opening of the hopper, making it difficult to quantitatively control the amount of polymer spread. Therefore, it is usually necessary to set a relatively narrow and deep feeding channel at the bottom of the hopper. The polymers slide through the feeding channel and then onto the surface of the roller, distributing the overall gravity of the polymers inside the hopper along the inner wall of the hopper. This prevents the gravity of the polymers from affecting the feeding amount and facilitates uniform spreading of the polymers. It should be further explained that, because polymers easily absorb moisture from the air and become sticky after absorbing water, the feeding channel of the polymer spreading device is prone to blockage after prolonged operation. If the feeding channel is integrated into the bottom of the hopper, the hopper needs to be emptied every time the feeding channel is cleared, which can affect the processing efficiency of the core. Therefore, a feeding structure with a feeding channel is usually set between the hopper and the roller. When the feeding channel is blocked, the feeding structure can be disassembled separately for clearing and cleaning. Furthermore, the feeding structure can adjust the distance between the bottom of the feeding channel and the top of the roller by adjusting the height, thereby adjusting the polymer feeding efficiency. The amount of polymer being fed is also a factor. Furthermore, the core of hygiene products is typically made by first creating an intermediate product with a width of over one meter before slitting it. The length of the feeding structure corresponds to the width of the polymer spreading, thus requiring a longer feeding structure in the spreading device. However, due to its length, the feeding structure tends to bend downwards in the center of its length direction, resulting in inconsistent distances between the bottom of the feeding channel and the top of the roller. The amount of polymer fed is greater at larger distances and less at smaller distances, easily leading to uneven polymer spreading. Therefore, even with the aforementioned feeding structure, the spreading device still suffers from uneven polymer spreading. Utility Model Content

[0003] To address the technical deficiencies in the background art, this utility model proposes a deformation-resistant polymer feeding structure, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows: A deformation-resistant polymer feeding structure includes an adjustable T-shaped grooved feeding plate and a feeding roller. The adjustable T-shaped grooved feeding plate has a feeding groove extending from the top to the bottom. The feeding groove extends from one end of the adjustable T-shaped grooved feeding plate along its length to the other end. The feeding roller is located below the bottom of the feeding groove. Fixed brackets are movably connected to both ends of the feeding roller along its length. A drive structure for rotating the feeding roller is provided at one end of the feeding roller along its length. The drive structure is fixedly connected to the fixed bracket. The adjustable T-shaped grooved blanking plate has a central protrusion on both sides in the width direction. A support protrusion is provided between the central protrusion and the end of the adjustable T-shaped grooved blanking plate in the length direction. The distance between the central protrusion and the end of the adjustable T-shaped grooved blanking plate in the length direction is a. When a≤600mm, a supporting protrusion is provided between the central protrusion and one end of the adjustable T-shaped grooved blanking plate in the length direction; When a > 600 mm, at least one supporting protrusion is provided between the central protrusion and both ends of the adjustable T-shaped grooved blanking plate along its length.

[0004] As a further technical solution of this utility model, a feeding gap is formed between the bottom of the feeding trough and the top of the feeding roller, and the surface of the feeding roller is provided with a plurality of spreading grooves extending along the length direction.

[0005] As a further technical solution of this utility model, when a≤600mm, the supporting protrusion is located in the center between the central protrusion and the end of the adjustable T-shaped grooved blanking plate in the length direction.

[0006] As a further technical solution of this utility model, the number of supporting protrusions provided between the central protrusion and one end of the adjustable T-shaped grooved feeding plate in the length direction is K, where K≥1; When K≥2, the distance between the central protrusion and the adjacent support protrusion is b, b≤600mm, and the distance between two adjacent support protrusions along the length direction of the adjustable T-shaped grooved blanking plate is c, c≤600mm, and the distance between the end of the adjustable T-shaped grooved blanking plate and the adjacent support protrusion is d, d≤600mm.

[0007] As a further technical solution of this utility model, the length of the adjustable T-shaped grooved feeding plate is 1200mm-4500mm, and the length of the feeding groove is 1100mm-4400mm and the width is 30mm-40mm.

[0008] As a further technical solution of this utility model, the inside of the feeding trough is provided with a number of connecting ribs that are respectively fixed to the inner walls on both sides of the feeding trough in the width direction.

[0009] The beneficial effects of this utility model are as follows: This utility model discloses a feeding structure for feeding and quantitatively and evenly distributing polymers. The adjustable T-shaped grooved feeding plate in the feeding structure guides the polymers in the hopper to the surface of the feeding roller. The feeding roller rotates to transfer the polymers from the bottom to near the bottom and then distributes them onto the surface of non-woven fabric or fluffy cotton. The amount of polymers distributed can be quantitatively adjusted by adjusting the feeding gap between the adjustable T-shaped grooved feeding plate and the feeding roller. Furthermore, the central protrusions and support protrusions on both sides of the adjustable T-shaped grooved feeding plate can serve as support points to prevent bending deformation of the adjustable T-shaped grooved feeding plate when it is long, so that the polymers can be distributed evenly. Attached Figure Description

[0010] Figure 1 Schematic diagram of an adjustable T-shaped grooved feeder plate with a deformation-resistant polymer feed structure Figure 1 .

[0011] Figure 2 This is a schematic diagram of a deformation-resistant polymer feeding structure combined with a fixed support and a hopper.

[0012] Figure 3 Schematic diagram of an adjustable T-shaped grooved feeder plate with a deformation-resistant polymer feed structure Figure 2 .

[0013] Figure 4 Schematic diagram of an adjustable T-shaped grooved feeder plate with a deformation-resistant polymer feed structure Figure 3 .

[0014] Among them: 1-Adjustable T-shaped grooved feeding plate, 11-Feeding groove, 12-Central protrusion, 13-Supporting protrusion, 14-Connecting rib, 2-Feeding roller, 3-Fixed bracket, 4-Booth. Detailed Implementation

[0015] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0016] A deformation-resistant polymer feeding structure includes an adjustable T-shaped grooved feeding plate 1 and a feeding roller 2. The adjustable T-shaped grooved feeding plate 1 is provided with a feeding groove 11 that extends from the top to the bottom. The feeding groove 11 extends from one end of the adjustable T-shaped grooved feeding plate 1 to the other end in the length direction. The feeding roller 2 is located below the bottom of the feeding groove 11. Fixed brackets 3 are movably connected to both ends of the feeding roller 2 in the length direction. A drive structure for rotating the feeding roller 2 is provided at one end of the feeding roller 2 in the length direction. The drive structure adopts a servo motor and is fixedly connected to the fixed bracket 3. A central protrusion 12 is provided at the center of both sides of the adjustable T-shaped grooved blanking plate 1 in the width direction. A supporting protrusion 13 is provided between the central protrusion 12 and the end of the adjustable T-shaped grooved blanking plate 1 in the length direction. The central protrusion 12 and the supporting protrusion 13 are integrally formed with the adjustable T-shaped grooved blanking plate 1. The top of the central protrusion 12 and the top of the supporting protrusion 13 are located on the same plane. The distance between the central protrusion 12 and the end of the adjustable T-shaped grooved blanking plate 1 in the length direction is a. When a≤600mm, a support protrusion 13 is provided between the central protrusion 12 and one end of the adjustable T-shaped grooved feeding plate 1 in the length direction; When a > 600 mm, at least one supporting protrusion 13 is provided between the central protrusion 12 and both ends of the adjustable T-shaped grooved feed plate 1 in the length direction.

[0017] This utility model discloses a feeding structure for feeding and quantitatively and uniformly distributing polymers. This feeding structure is mainly installed in a polymer distributing device. When the feeding structure of this utility model is installed in the polymer distributing device, refer to... Figure 1 , Figure 2 Above the adjustable T-shaped grooved feeding plate 1 is a hopper 4 for storing polymers, which are super absorbent resins. Below the feeding roller 2 is a non-woven fabric or fluffy cotton that is continuously conveyed and used to make the core of sanitary products. The polymers in the hopper 4 slide from the bottom of the hopper 4 into the adjustable T-shaped grooved feeding plate 1. Then, the polymers slide down onto the surface of the feeding roller 2 through the guide of the feeding groove 11. After the drive structure works, the feeding roller 2 rotates. The feeding roller 2 gradually transfers the polymers from the top to near the bottom and then spreads them on the surface of the non-woven fabric or fluffy cotton. It should be noted that the two ends of the feeding roller 2 in the length direction are movably connected to the fixed bracket 3 by shafts. The fixed bracket 3 is equipped with bearings sleeved on the surface of the shafts, so that the feeding roller 2 can rotate smoothly. The fixed bracket 3 is used to install and fix in the polymer spreading device. The spreading device realizes the polymer spreading operation by cooperating with the adjustable T-shaped grooved feeding plate 1 and the feeding roller 2. Furthermore, a feeding gap is formed between the bottom of the feeding trough 11 and the top of the feeding roller 2. The surface of the feeding roller 2 is provided with several spreading grooves extending along the length direction. The amount of polymer spread by the feeding roller 2 depends on the size of the feeding gap. The spreading device uses a common structure to make the adjustable T-shaped grooved feeding plate 1 move in the up and down direction. When the adjustable T-shaped grooved feeding plate 1 moves upward and increases the feeding gap, more polymers will slide down through the bottom of the feeding trough 11 to the surface of the feeding roller 2, so that the feeding roller 2 can spread more polymers on the surface of non-woven fabric or fluffy cotton, thereby increasing the amount of polymer spread. Conversely, the amount of polymer spread will decrease. The spreading groove is used to assist the feeding roller 2 in transferring the polymer from the top to the bottom. The spreading groove can accommodate some polymer and prevent the polymer from sliding down the surface of the feeding roller 2 in the opposite direction of the rotation of the feeding roller 2, thus ensuring that the polymer is transferred in the direction of rotation of the feeding roller 2. Because the spreading device needs to adjust the height of the adjustable T-shaped grooved feeding plate 1 to change the size of the feeding gap in order to adjust the spreading amount of polymer, the adjustable T-shaped grooved feeding plate 1 cannot be integrated and fixed in the hopper 4. The adjustable T-shaped grooved feeding plate 1 needs to be set as an independent structure between the hopper 4 and the feeding roller 2. However, this can also easily cause the adjustable T-shaped grooved feeding plate 1 to bend and deform due to its long length. At this time, the fixing bracket 3 can be provided with threaded holes to set threaded rods to support the central protrusion 12 and the support protrusion 13. The threaded rods can extend from bottom to top. By rotating the threaded rods, its top end can be aligned with the central protrusion 12 or the support protrusion 13. The bottom abuts against the adjustable T-shaped grooved feeding plate 1, and the threaded rod supports the adjustable T-shaped grooved feeding plate 1 to keep it straight. In addition, the feeding roller 2 is made of 40Cr alloy steel and is cylindrical with hollow interior. Several spreading grooves form a structure similar to reinforcing ribs on its surface, making the feeding roller 2 less prone to bending deformation and able to remain straight. After both the adjustable T-shaped grooved feeding plate 1 and the feeding roller 2 are kept straight, the size of the feeding gap can be kept consistent in the extension direction of the adjustable T-shaped grooved feeding plate 1. The amount of polymer spreading can be quantitatively adjusted, and the polymer can be spread evenly. The outer diameter of a conventional feeding roller 2 is approximately 90mm. This invention increases the outer diameter of the feeding roller 2 to 150mm, which further increases the rigidity of the feeding roller 2, making it less prone to bending deformation. In addition, two adjacent spreading grooves on the surface of the feeding roller 2 share the same sidewall. Under the premise that the spreading groove width is the same, the thickness of the sidewall determines the density of the spreading grooves on the surface of the feeding roller 2. The conventional feeding roller 2 uses spreading grooves with a width of 2.5mm and a sidewall thickness of 0.7mm. The feeding roller 2 of this invention uses spreading grooves with a width of 2.5mm and a sidewall thickness of 0.3mm, which increases the density of spreading grooves on the surface of the feeding roller 2, thereby improving the frequency and accuracy of spreading polymers through the spreading grooves.

[0018] As one of the preferred embodiments of this utility model, refer to Figure 1 , Figure 3 , Figure 4The length of the adjustable T-shaped grooved feeding plate 1 is 1200mm-4500mm. The number of supporting protrusions 13 needs to be adjusted according to the length of the adjustable T-shaped grooved feeding plate 1. The length of the feeding groove 11 is 1100mm-4400mm and the width is 30mm-40mm. The length of the feeding groove 11 determines the length of the polymer material strip that the polymer slides down onto the surface of the feeding roller 2. That is, the width of the polymer material layer spread on the surface of non-woven fabric or fluffy cotton by the spreading device matches the length of the feeding groove 11. In addition, the width of the feeding groove 11 needs to be adjusted according to the particle size of the polymer. Polymers with larger particle sizes need to be matched with a wider feeding groove 11 to avoid polymer getting stuck inside the feeding groove 11 and improve the smoothness of polymer feeding. Furthermore, when a≤600mm, the support protrusion 13 is located at the center between the central protrusion 12 and the end of the adjustable T-shaped grooved blanking plate 1 in the length direction. At this time, the length of the adjustable T-shaped grooved blanking plate 1 is 1200mm. Only one support protrusion 13 needs to be set between the central protrusion 12 and one end of the adjustable T-shaped grooved blanking plate 1 in the length direction. The threaded rod of the fixed bracket 3 only needs to support the central protrusion 12. The central protrusion 12 and the support protrusion 13 are leveled by measuring equipment such as a laser level. The central protrusion 12 and the support protrusion 13 are used as reference points to determine whether the adjustable T-shaped grooved blanking plate 1 is straight enough.

[0019] As one of the preferred embodiments of this utility model, refer to Figure 4 The number of supporting protrusions 13 between the central protrusion 12 and one end of the adjustable T-shaped grooved blanking plate 1 along its length is K, K≥1; when K≥2, the distance between the central protrusion 12 and the adjacent supporting protrusion 13 is b, b≤600mm, and the distance between two adjacent supporting protrusions 13 along the length of the adjustable T-shaped grooved blanking plate 1 is c, c≤600mm, and the distance between the end of the adjustable T-shaped grooved blanking plate 1 along its length and the adjacent supporting protrusion 13 is d, d≤600mm; At this time, the length of the adjustable T-shaped grooved blanking plate 1 is greater than 1200mm, and a > 600mm. Due to the long length of the adjustable T-shaped grooved blanking plate 1, its central position is more likely to bend downward and the bending deformation is greater. Supporting protrusions 13 need to be set between the central protrusion 12 and both ends of the length of the adjustable T-shaped grooved blanking plate 1. The bottom of the central protrusion 12 and each supporting protrusion 13 needs to be supported by threaded rods. By using multiple threaded rods to provide multi-point support for the adjustable T-shaped grooved blanking plate 1, the long adjustable T-shaped grooved blanking plate 1 can be kept straight.

[0020] As one of the preferred embodiments of this utility model, refer to Figure 1 , Figure 3 , Figure 4 The material feeding groove 11 is provided with several connecting ribs 14 that are fixed to the inner walls of both sides of the material feeding groove 11 in the width direction. The connecting ribs 14 are integrally formed with the adjustable T-shaped grooved material feeding plate 1. The connecting ribs 14 can pull the two sides of the adjustable T-shaped grooved material feeding plate 1 in the width direction from inside the material feeding groove 11, thereby improving the deformation resistance of the adjustable T-shaped grooved material feeding plate 1.

[0021] In summary, this utility model discloses a feeding structure for feeding and quantitatively and evenly distributing polymers. The adjustable T-shaped grooved feeding plate 1 in the feeding structure guides the polymers in the hopper 4 to the surface of the feeding roller 2. The feeding roller 2 rotates to transfer the polymers from the bottom to near the bottom and then distributes them onto the surface of non-woven fabric or fluffy cotton. The amount of polymers distributed can be quantitatively adjusted by adjusting the feeding gap between the adjustable T-shaped grooved feeding plate 1 and the feeding roller 2. Furthermore, the central protrusion 12 and the support protrusion 13 on both sides of the adjustable T-shaped grooved feeding plate 1 can serve as support points to prevent bending deformation of the adjustable T-shaped grooved feeding plate 1 when it is long, so that the polymers can be distributed evenly.

[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A deformation-resistant polymer feeding structure, comprising an adjustable T-shaped grooved feeding plate (1) and a feeding roller (2), characterized in that, The adjustable T-shaped grooved feeding plate (1) is provided with a feeding groove (11) that runs from the top to the bottom. The feeding groove (11) extends from one end of the adjustable T-shaped grooved feeding plate (1) to the other end in the length direction. The feeding roller (2) is located below the bottom of the feeding groove (11). Fixed brackets are movably connected to both ends of the feeding roller (2) in the length direction. A drive structure for rotating the feeding roller (2) is provided at one end of the feeding roller (2) in the length direction. The drive structure is fixedly connected to the fixed bracket. The adjustable T-shaped grooved feeding plate (1) has a central protrusion (12) on both sides of the width direction. A support protrusion (13) is provided between the central protrusion (12) and the end of the adjustable T-shaped grooved feeding plate (1) in the length direction. The distance between the central protrusion (12) and the end of the adjustable T-shaped grooved feeding plate (1) in the length direction is a. When a≤600mm, a support protrusion (13) is provided between the central protrusion (12) and one end of the adjustable T-shaped grooved feed plate (1) in the length direction. When a > 600 mm, at least one supporting protrusion (13) is provided between the central protrusion (12) and both ends of the adjustable T-shaped grooved feed plate (1) in the length direction.

2. The deformation-resistant polymer feeding structure according to claim 1, characterized in that, A feeding gap is formed between the bottom of the feeding trough (11) and the top of the feeding roller (2), and the surface of the feeding roller (2) is provided with several spreading grooves extending along the length direction.

3. The deformation-resistant polymer feeding structure according to claim 1, characterized in that, When a≤600mm, the support protrusion (13) is located at the center between the central protrusion (12) and the end of the adjustable T-shaped grooved feed plate (1) in the length direction.

4. The deformation-resistant polymer feeding structure according to claim 1, characterized in that, The number of supporting protrusions (13) provided between the central protrusion (12) and one end of the adjustable T-shaped grooved feeding plate (1) in the length direction is K, K≥1; When K≥2, the distance between the central protrusion (12) and the adjacent support protrusion (13) is b, b≤600mm, and the distance between two adjacent support protrusions (13) along the length direction of the adjustable T-shaped grooved feeding plate (1) is c, c≤600mm, and the distance between the end of the adjustable T-shaped grooved feeding plate (1) along the length direction and the adjacent support protrusion (13) is d, d≤600mm.

5. The deformation-resistant polymer feeding structure according to claim 1, characterized in that, The adjustable T-shaped grooved feeding plate (1) has a length of 1200mm-4500mm, and the feeding groove (11) has a length of 1100mm-4400mm and a width of 30mm-40mm.

6. The deformation-resistant polymer feeding structure according to claim 1, characterized in that, The inside of the feeding trough (11) is provided with several connecting ribs (14) that are respectively fixed to the inner walls on both sides of the feeding trough (11) in the width direction.

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