Blanking device for high-absorptivity resin particles

Abstract

The utility model discloses a high absorptivity resin particle blanking device which comprises a material storage container, a blanking box, a driving assembly, a mandrel, a feeding spring and a guide pipe, the material storage container is communicated with the blanking box, a feeding channel is arranged in the blanking box, the guide pipe is arranged on the blanking box and communicated with the feeding channel, and the driving assembly is arranged on the driving assembly. The feeding spring is rotatably arranged in the feeding channel in a penetrating mode, one end of the feeding spring extends out of one end of the feeding channel and is connected to the driving assembly through the mandrel, and the other end of the feeding spring extends out of the other end of the feeding channel and extends into the guide pipe; the driving assembly can drive the feeding spring to rotate in the feeding channel and the guide pipe. The free end of the guide pipe is configured to be in a closed shape, a discharging opening is formed in the pipe wall of the guide pipe, and the discharging opening is distributed in the circumferential direction and the axial direction of the pipe wall in an extending mode at the same time. According to the discharging device, a new discharging opening structure is constructed, so that high-absorptivity resin particles are evenly distributed on a discharging station, and accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of disposable sanitary product manufacturing equipment, in particular to the fields of sanitary napkins for women, baby diapers / pull-up pants, adult diapers / pull-up pants, sanitary pants for women, and specifically is a feeding device for highly absorbent resin particles. Background Art

[0002] High absorbent resin, also known as high molecular water-absorbent resin (in granular form, referred to as high molecular or SAP or high molecular material), is widely used in disposable sanitary products because it can absorb hundreds or even thousands of times its own weight of liquid and firmly lock the liquid after absorbing it. Therefore, a high absorbent resin unloading device needs to be set in the disposable sanitary product manufacturing equipment to continuously and stably transport the high absorbent resin to the corresponding unloading station.

[0003] The Chinese patent with announcement number CN202279541U discloses a highly absorbent resin particle feeding device, in which a driving device drives a feed shaft to rotate, thereby driving a feed spring to rotate. The direction of rotation of the driving device is the same as that of the feed spring. The highly absorbent resin particles move into the feed tube body along the rotation direction of the feed spring, and are finally output from the outlet end of the feed tube body to the next fiber accumulation device, thereby completing the addition and transportation of the highly absorbent resin particles.

[0004] In the highly absorbent resin particle feeding device based on such a structure, the feeding spring is arranged inside the feeding tube body, and the feeding spring is rotated to feed the material. The feeding tube body is a tubular structure as a whole, and the outlet end is an open structure formed at the end. In this way, when the highly absorbent resin is pushed forward to the outlet end of the feeding tube body for unloading by the feeding spring, since the outlet end is an end-opening structure, the highly absorbent resin is unloaded at the same position, which will cause the unloaded highly absorbent resin to accumulate, thereby causing the highly absorbent resin to be not well and evenly distributed in the disposable sanitary products, affecting the quality of the product. Utility Model Content

[0005] In view of the problems existing in the discharge scheme of the existing high-absorbent resin particle feeding equipment, the purpose of the utility model is to provide a high-absorbent resin particle discharge device, which constructs a new discharge port structure to allow the high-absorbent resin particles to be scattered at the discharge station to avoid accumulation.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a feeding device for highly absorbent resin particles, including a storage container, a feeding box, a driving assembly, a core shaft, a feeding spring and a guide tube, the storage container is connected to the feeding box, a feeding channel is provided in the feeding box, the guide tube is provided on the feeding box and is connected to the feeding channel, the feeding spring is rotatably inserted into the feeding channel, one end of the feeding spring extends from the channel entrance of the feeding channel and is connected to the driving assembly through the core shaft, and the other end of the feeding spring extends from the channel exit of the feeding channel and extends into the guide tube; the driving assembly can drive the feeding spring to rotate in the feeding channel and the guide tube; the free end of the guide tube is configured to be closed, a feeding port is provided on the tube wall of the guide tube, and the feeding port is distributed along the circumferential and axial directions of the tube wall at the same time.

[0007] Furthermore, the feed openings are distributed in a spiral shape along the tube wall.

[0008] Furthermore, the projection of the discharge port in the axial direction of the guide tube can form a central angle of 0°-90°.

[0009] Furthermore, the guide tube is configured to be circumferentially adjustable relative to the discharge box.

[0010] Furthermore, the driving assembly includes a driving portion and a driving shaft, and the driving portion is drivingly connected to the driving shaft.

[0011] Furthermore, the core shaft is coaxially and detachably connected to the driving shaft, and one end of the feed spring is sleeved on the core shaft to form a detachable clamping connection with the driving shaft.

[0012] Furthermore, a disassembly hole is provided at the free end of the core shaft along the circumferential direction.

[0013] Furthermore, a head assembly is formed at one end of the feed spring, and the head assembly can be inserted into the drive shaft when the feed spring and the drive shaft are clamped together to limit the circumferential movement of the feed spring relative to the drive shaft.

[0014] Furthermore, the feeding device also includes a spacer, which is arranged between the driving assembly and the feeding box, and a transition cavity is formed inside the spacer, one port of the transition cavity is connected to the feeding channel in the feeding box, and the other port is arranged in cooperation with the driving assembly; the transition cavity accommodates the mating part of the feed spring and the core shaft; a feeding hole is opened in the spacer, and the feeding hole is connected to the transition cavity inside the spacer.

[0015] Furthermore, the material discharge device also includes a material receiving container, which is arranged on the downstream side of the discharge port of the guide tube, the opening of the material receiving container is greater than or equal to the opening of the discharge port of the guide tube, and the opening of the material receiving container is 1 to 2 times the opening of the discharge port of the guide tube.

[0016] Compared with the existing solutions, the high-absorbent resin particle feeding device of the utility model has the following technical effects:

[0017] (1) In the present unloading device, a sealing cover is provided at the end of the discharge end of the tubular guide tube so that the highly absorbent resin is not discharged from the end. At the same time, a unloading port is provided at a certain angle along the circumferential and axial directions of the tube wall (i.e., the side wall) at the discharge end of the guide tube. That is, the unloading port extends along the circumferential and axial directions of the tube wall at the same time, so that the highly absorbent resin can be evenly thrown out from the unloading port distributed on the tube wall (i.e., the side wall) at the discharge end of the guide tube into a receiving container on the downstream side, thereby solving the technical problem of accumulation of highly absorbent resin caused by unloading from the end of the guide tube, so that the highly absorbent resin can be well and evenly distributed in the unloading station, thereby greatly improving the quality of the product.

[0018] (2) The discharge ports in the discharge device are distributed and extended along the tube wall at a certain circumferential angle, and the projection of the distribution structure in the axial direction of the guide tube can form a central angle of 0°-90°. The discharge ports distributed in this way can evenly transport the applied highly absorbent resin to the downstream side and meet the application amount of highly absorbent resin in different disposable sanitary products.

[0019] (3) In the present unloading device, a corresponding disassembly hole is provided on the side wall of the free end of the core shaft, so as to facilitate the assembly and disassembly of the core shaft, and then facilitate the assembly and disassembly of the feed spring.

[0020] (4) In the present feeding device, a spacer is added between the driving assembly and the feeding box, and a transition cavity is formed outside the feeding box, in which the matching parts of the core shaft and the feed spring are inserted, so that the matching structure of the core shaft and the feed spring is distributed as a whole outside the feeding box, avoiding encroachment on the feeding channel area inside the feeding box, thereby maximizing the area of ​​the feeding channel inside the feeding box and ensuring the feeding efficiency and effect; at the same time, the spacer protects the matching structure of the core shaft and the feed spring through the corresponding transition cavity, avoiding the influence of a large amount of granular high-absorbency resin on the matching structure of the core shaft and the feed spring, and ensuring the reliability of the connection and matching between the core shaft, the feed spring and the driving shaft.

[0021] (5) In this unloading device, a spacer is used to prevent the driving component from being directly connected to the feeding channel in the unloading box, and the unloading hole connected to the internal transition cavity is used to effectively prevent the granular highly absorbent resin from damaging the bearings and other parts on the outer periphery of the driving shaft (such as long-term contact between the bearings and the highly absorbent resin will corrode the bearings), thereby ensuring the reliability of the operation of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementations.

[0023] Figure 1 It is a front view of a high absorbent resin particle feeding device in an example of the utility model;

[0024] Figure 2 It is a side view of a high absorbent resin particle feeding device in an example of the utility model;

[0025] Figure 3 It is a schematic diagram of the installation of the drive shaft, the core shaft and the feed spring in the example of the utility model;

[0026] Figure 4 It is an axial schematic diagram of the guide tube in the example of the utility model;

[0027] Figure 5 for Figure 4 Schematic diagram of the middle guide tube on the periphery;

[0028] Figure 6 It is a schematic axial diagram of the core shaft in the example of the utility model;

[0029] Figure 7 for Figure 6 Schematic diagram of the central axis on the circumference;

[0030] Figure 8 for Figure 1 A magnified view of the middle spacer position;

[0031] Fig. 9 for Figure 1 Schematic diagram of the discharge port of the guide tube discharging materials into the discharge container. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0033] Example 1

[0034] See also Figure 1 and Figure 2 , which shows an example structure of the highly absorbent resin particle feeding device given in this example.

[0035] Based on the diagram, the highly absorbent resin particle feeding device given in this example mainly includes a storage container 2, a feeding box 3, a driving part 4, a driving shaft 5, a core shaft 6, a feeding spring 7, a spacer 8 and a guide tube 9.

[0036] The material storage container 2 in the present material discharging device is connected to the material discharging box 3 and cooperates to form a material bin of the entire material discharging device, which is used to store the highly absorbent resin particles G to be discharged.

[0037] The core shaft 6, feed spring 7 and guide tube 9 in the present unloading device cooperate to form a rotary feeding assembly in the unloading device, and are arranged in cooperation with the unloading box 3, so as to transport the highly absorbent resin particles G in the unloading box 3 to the corresponding unloading station by rotary feeding.

[0038] The driving part 4 and the driving shaft 5 in the present unloading device cooperate to form a driving assembly of the unloading device, which is used to provide the power required for rotating feeding to the rotating feeding assembly.

[0039] The spacer 8 in the present unloading device is configured to cooperate with the driving component to stably drive the connected rotating feeding component, which is driven by the driving component to perform a rotating feeding action relative to the unloading box 3 to transport the highly absorbent resin particles G in the unloading box 3 to the corresponding unloading station.

[0040] The following is a detailed description of the structure and corresponding technical features of the highly absorbent resin particle feeding device of this example.

[0041] The storage container 2 in the device is used to store the highly absorbent resin particles G to be unloaded, so as to cooperate with other components to complete continuous unloading.

[0042] The specific structure of the material storage container 2 is not limited here and can be determined according to actual needs.

[0043] In some embodiments of this example, a feed port 1 is provided above the storage container 2, and the feed port 1 is configured to be connected to and cooperate with a conveying device (not shown) of the superabsorbent resin G so as to continuously and efficiently supply the storage container 2.

[0044] In some embodiments of this embodiment, a first sensor A1 and a second sensor A2 are respectively disposed in the upper region and the lower region of the storage container 2. The first sensor A1 and the second sensor A2 are configured to detect the storage amount of the superabsorbent resin.

[0045] As a further explanation, in this example, the first sensor A1 and the second sensor A2 can cooperate with the control system of the conveying device to realize automatic addition of materials to the material storage container 2 .

[0046] As an example, the first sensor A1 is configured to detect the upper limit of the material level in the storage container 2, and the second sensor A2 is configured to detect the lower limit of the material level in the storage container 2. At the same time, the first sensor A1 and the second sensor A2 are also configured to establish data connection with the control system of the conveying device.

[0047] In this way, when the material level of the high absorbent resin in the storage container 2 is higher than the first sensor A1, the first sensor A1 transmits a signal to the control system of the conveying device, and the control system sends a command to the motor of the conveying device on the upstream side of the feed port 1 to control the motor to stop working, thereby controlling the feed port 1 to stop feeding;

[0048] When the material level of the high absorbent resin is lower than the second sensor A2, the second sensor A2 also transmits a signal to the control system of the conveying device, which sends a command to the motor of the conveying device on the upstream side of the feed port 1. The motor starts to control the start of feeding to the feed port 1, thereby realizing the automation of feeding.

[0049] It should be noted here that the above-mentioned automatic feeding scheme of the storage container 2 is only used as an example and does not constitute a specific limitation on the present embodiment. That is, any other feasible storage container scheme and / or feeding scheme may be adopted as needed.

[0050] The unloading box 3 in the device is specifically docked with the storage container 2 to form an unloading operation space inside, and cooperates with the feed spring 7 and the guide tube 9 to complete the unloading operation of the highly absorbent resin G entering from the storage container 2 into the unloading box 3.

[0051] In some embodiments of this example, the discharge box 3 is specifically a box structure with an upper opening, the opening size of which is adapted to the lower outlet of the storage container 2, and is accordingly assembled below the storage container 2, and is connected to the inner cavity of the storage container 2, so that the high-absorbency resin G entering the storage container 2 can smoothly enter the discharge box 3.

[0052] Furthermore, a feeding channel 31 is also provided in the feed box 3, and the feeding channel 31 is distributed along the conveying direction a of the superabsorbent resin, and a corresponding channel inlet 311 and a channel outlet 312 are formed on the corresponding side wall of the feed box 3. The feeding channel 31 thus provided can accommodate the feed spring 7 to be movably arranged therein, so as to cooperate with the rotary feeding. The movement here includes circumferential rotation and axial movement, that is, the feed spring 7 realizes rotary feeding through circumferential rotation, and realizes disassembly and installation through axial movement.

[0053] As an example, taking the illustrated scheme as an example, the area along the highly absorbent resin conveying direction a at the bottom of the discharge box 3 is directly configured as a corresponding feeding channel 31, and at the same time, a channel entrance 311 and a channel exit 312 are respectively opened on the two side walls of the discharge box 3 distributed in this direction, thereby being able to cooperate with the feed spring 7, and the formed feeding channel 31 is distributed at the bottom of the discharge box 3, which can more efficiently carry out rotary feeding and avoid material accumulation at the bottom of the discharge box 3.

[0054] The guide tube 9 in the device is specifically arranged on the unloading box 3, and cooperates with the feed spring 7 arranged in the feeding channel 31 in the unloading box 3 to realize the conveying of the highly absorbent resin G in the unloading box 3 to the required unloading station along the highly absorbent resin conveying direction a.

[0055] See also Figure 1 and Figure 4 In some embodiments of this example, the guide tube 9 is a hollow tube structure, including a mounting end 91 and a discharge end 92. The mounting end 91 of the guide tube 9 is configured to cooperate with and communicate with the channel outlet 312 of the feeding channel 31 in the discharge box 3. According to this cooperation and communication, the guide tube 9 will be connected to the discharge box 3 and extend along the high-absorbency resin conveying direction a to the corresponding discharge station.

[0056] Furthermore, the discharge end 92 (i.e., the free end) of the guide tube 9 is axially away from the feeding channel 31 in the discharge box 3 and is specifically configured to be closed. At the same time, a discharge port 922 is opened on the tube wall of the discharge end 92 of the guide tube 9, and the discharge port 922 is distributed along the circumferential and axial directions of the tube wall at the same time. As a result, the highly absorbent resin G is not discharged from the end of the discharge end 92 of the guide tube, but is discharged from the discharge port 922 on the tube wall of the discharge end 92 that is distributed along the circumferential and axial directions at the same time. Therefore, the highly absorbent resin G can be discharged evenly in the axial distribution area of ​​the discharge port 922, effectively avoiding the accumulation of the discharged material.

[0057] As a further explanation, in this example, a cover 921 is disposed at the end 923 of the discharge end 92 of the guide tube 9 to configure the discharge end 92 into a closed state. Preferably, the cover 921 is disposed at the end 923 of the discharge end 92 of the guide tube 9 in a detachable structure, which is convenient for maintenance during the actual production process.

[0058] Further, when the guide tube 9 is provided with a discharge port 922 on the tube wall of the discharge end 92, it is preferred that the discharge port 922 is distributed along the axial direction of the guide tube 9 and is distributed at a certain rotation angle along the circumferential direction of the tube wall of the discharge end 92 of the guide tube, thereby forming a spirally distributed discharge port 922 on the tube wall of the discharge end 92 of the guide tube, such as Figure 4 shown.

[0059] In this way, a cover 921 is provided at the end of the discharge end 92 of the guide tube 9 to seal the discharge end of the guide tube 9, so that the highly absorbent resin G is not discharged from this end, but is discharged from a spiral discharge port 922 on the tube wall of the discharge end 92, thereby effectively avoiding accumulation of discharged materials.

[0060] It should be noted here that the distribution shape of the feed openings 922 is not limited to a spiral shape, and other distribution shapes may be used as long as they extend along the circumferential direction and axial direction of the tube wall at the same time.

[0061] As a further preference, when a discharge port 922 is provided on the tube wall of the discharge end 92 of the guide tube 9, the discharge port 922 directly extends to the end 923 of the discharge end 92, thereby avoiding the discharge end 92 with a closed end 923 from forming a material accumulation area therein, causing material accumulation.

[0062] As a further preferred embodiment, when a discharge port 922 is provided on the wall of the discharge end 92 of the guide tube 9, the angle α between the discharge port 922 and the horizontal direction is in the range of 0°-90°, that is, the projection of the discharge port 922 in the axial direction of the guide tube 9 can form a central angle of 0°-90°. Figure 5 As shown, the feed opening 922 with such a distribution range can evenly transport the high absorbent resin G to the downstream side and effectively meet the application amount of the high absorbent resin G in different disposable sanitary products.

[0063] The specific angle value is not limited here and can be determined according to actual needs, such as 10°, 30°, 45°, 50°, 60°, 70°, 80°, 90°, etc.

[0064] As a further preference, when the guide tube 9 is connected to the channel outlet 312 on the discharge box 3 through the installation end 91, the installation end 91 and the channel outlet 312 on the discharge box 3 are connected by a circumferentially adjustable connection structure. In this way, the guide tube 9 can be adjusted in any circumferential direction, so that the extension direction of the circumferential discharge port 922 on the guide tube 9 can adapt to the direction of the delivery and application of the highly absorbent resin G, and correspond to the discharge station. For example, when the discharge device is stopped for adjustment, the guide tube 9 can be rotated in the circumferential direction to adjust the connection setting position relative to the channel outlet 312 on the discharge box 3, so that the opening direction of the circumferential discharge port 922 on the guide tube 9 is downward.

[0065] The guide tubes 9 arranged in such a distribution form a spirally distributed discharge slot (i.e., discharge slot 922) on the tube wall of the discharge end 92, so that the highly absorbent resin G entering the guide tube 9 can be evenly thrown out from the spirally distributed discharge slot 922 under the rotation and propulsion of the feed spring 7, thereby solving the technical problem of accumulation of the highly absorbent resin G discharge, so that the highly absorbent resin G can be well and evenly distributed in the disposable sanitary products, greatly improving the quality of the products.

[0066] It should be noted here that the width of the discharge port 922 opened on the guide tube 9 and the distribution range along the circumferential direction and axial direction of the guide tube 9 can be determined according to actual needs and are not limited here.

[0067] The feed spring 7 in the present device serves as a driving component for feeding, and is disposed as a whole in the feed channel 31 in the discharge box 3. At the same time, one end of the feed spring 7 extends from the channel entrance 311 on the discharge box 3 and is connected to the drive shaft 5; the other end of the feed spring 7 extends from the channel exit 312 on the discharge box 3 and extends into the guide tube 9; the feed spring 7 arranged in this way can rotate in the feed channel 31 and the guide tube 9 in the discharge box 3 under the drive of the drive shaft 5, and through rotation and pushing, the high absorbency resin G in the discharge box 3 is fed into the guide tube 9 via the feed channel 31, and then fed into the discharge station by the guide tube 9, thereby realizing rotary feeding.

[0068] See also Figure 1 and Figure 3 In some embodiments of this example, the feed spring 7 in this example is sequentially formed with a connecting portion 71, a transition portion 72, a feed portion 73 and a conveying portion 74 along the length direction.

[0069] The feed spring 7 of such a structure runs entirely through the feed channel 31 of the discharge box 3, wherein the feed portion 73 of the feed spring 7 is entirely arranged in the feed channel 31 of the discharge box 3, so that it corresponds to the highly absorbent resin G transported from the storage container 2 on the upstream side, and can continuously transport the highly absorbent resin G entering the feed channel 31 to the guide tube 9 through rotation.

[0070] The connection portion 71 of the feed spring 7 extends out of the feed channel 31 from the channel entrance 311 in the feed box 3 , and is connected to the drive shaft 5 through the core shaft 6 , so that the feed spring 7 can rotate under the drive of the drive shaft 5 .

[0071] The transition portion 72 of the feed spring 7 extends out of the feeding channel 31 together with the connecting portion 71 from the channel entrance 311 in the discharge box 3. The transition portion 72 is configured to cooperate with the spacer 8 to form a transition protection structure, which is used to form a transition protection for the connection structure between the connecting portion 71 of the feed spring 7 and the drive shaft 5 and the drive shaft 5, thereby improving the reliability of the operation of the entire discharge device.

[0072] The conveying portion 74 of the feed spring 7 extends out of the feed channel 31 from the channel outlet 312 in the discharge box 3, and extends into the guide tube 9, forming a rotating conveying structure in the guide tube 9, which can convey the highly absorbent resin G conveyed by the feed portion 73 into the guide tube 9, and simultaneously convey it continuously along the guide tube 9 to the discharge port 922 through rotation, and then discharge it through the discharge port 922.

[0073] The feed spring 7 thus arranged can, under the drive of the drive shaft 5, convey the highly absorbent resin G conveyed from the storage container 2 to the discharge box 3 to the guide tube 9, and then convey it along the guide tube 9 to the discharge position for discharge.

[0074] In order to further describe the specific configuration and operation process of the feed spring 7 in this embodiment, the composition and configuration of the spacer 8 and the drive shaft 5 are first described here.

[0075] See also Figure 1 and Figure 8 The spacer 8 in the device is arranged on the outside of the discharge box 3, one end of which is connected to the channel entrance 311 of the discharge box 3, and the other end is arranged in cooperation with the drive shaft 5; a corresponding transition through hole 82 is opened in the spacer 8, and the transition through hole 82 is configured to be compatible with the feed spring 7, and can accommodate the connecting part 71 and the transition part 72 on the feed spring 7. When the spacer 8 is connected to the channel entrance 311 of the discharge box 3 and the drive shaft 5, the transition through hole 82 in the spacer 8 is coaxially distributed with the feeding channel 31 in the discharge box 3 and the drive shaft 5.

[0076] The spacer 8 arranged in this way will constitute a corresponding spacing transition protection structure between the discharge box 3 and the drive shaft 5, and the internal transition through hole 82 will form a corresponding transition cavity, which can accommodate the connecting part 71 and the transition part 72 of the feed spring 7, so as to realize that the connecting structure between the connecting part 71 of the feed spring and the drive shaft 5 is distributed as a whole outside the discharge box 3, avoiding encroachment on the feeding channel 31 area inside the discharge box, thereby maximizing the area of ​​the feeding channel 31 inside the discharge box and ensuring the feeding efficiency and effect.

[0077] At the same time, the transition through hole 82 inside the spacer 8 cooperates with the transition portion 72 of the feed spring 7 arranged therein to form a transition protection zone between the drive shaft 5 and the discharge box 3, thereby preventing the drive shaft 5 from being directly connected to the discharge box 3, thereby preventing the highly absorbent resin G in the discharge box 3 from affecting the operation of the drive shaft 5; at the same time, it also prevents a large amount of granular highly absorbent resin G from affecting the connection between the transition portion 72 of the feed spring 7 and the drive shaft 5 through the core shaft 6, thereby protecting the connection structure between the feed spring 7 and the drive shaft 5, and ensuring the reliability of the connection between the core shaft 6, the feed spring 7 and the drive shaft 5.

[0078] See also Figure 8 In some embodiments of this example, the spacer 8 is an overall step structure, and its small end 83 is configured to adapt to the channel entrance 311 of the discharge box 3 and can be placed therein to achieve stable docking between the spacer 8 and the discharge box 3.

[0079] Furthermore, the transition through hole 82 inside the spacer 8 is in a stepped hole state as a whole, including a large hole portion 821 and a small hole portion 822 that are interconnected, wherein the small hole portion 822 forms a corresponding transition cavity, configured to cooperate with the transition portion 72 on the feed spring 7, and can accommodate the transition portion 72 to be movably arranged therein; the large hole portion 821 forms a corresponding connecting cavity, configured to cooperate with the second connecting portion (i.e., the second end 52) of the drive shaft 5, and can accommodate the second connecting portion (i.e., the second end 52) of the drive shaft 5 to be arranged therein, so as to achieve a stable matching setting between the spacer 8 and the drive shaft 5.

[0080] The specific structural dimensions of the spacer 8 are not limited here and can be determined according to actual needs.

[0081] See also Figure 1 The driving shaft 5 in the device is used as a transmission device, connected to the driving part 4, and docked with the feed spring 7, and can drive the feed spring 7 to rotate under the drive of the driving part 4.

[0082] Specifically, a bearing B is installed on the outer side of the drive shaft 5, and the bearing B provides rotational support for the drive shaft 5; at the same time, under the support of the bearing B, the first connecting part (i.e., the first end 51) of the drive shaft 5 is cooperated with the transmission belt driving part 4, and the second connecting part (i.e., the second end 52) is placed in the large hole part 821 in the spacer 8, thereby realizing the docking setting of the drive shaft 5 and the spacer 8 therebetween.

[0083] See also Figure 3 , which shows a structural example of the drive shaft 5 in this example. The drive shaft 5 includes a first end 51 connected to the drive portion 4 and a second end 52 away from the first end 51 and used to be connected to the feed spring 7 along the axial direction.

[0084] The transmission arrangement between the first end 51 of the drive shaft 5 and the drive unit 4 is not limited here and can be determined according to actual needs. As an example, the structure of the drive unit 4 in this embodiment is that a pulley is installed on the motor. To cooperate with it, the drive shaft 5 in this example is installed on its first end 51. The two pulleys are in corresponding positions in the axial direction and are connected by a synchronous belt. In this way, when the motor rotates, the power is transmitted to the drive shaft 5 through the synchronous belt.

[0085] The second end 52 on the driving shaft 5 is specifically configured to be able to cooperate with the through hole 82 in the spacer 8, and can also be effectively connected with the feed spring 7 to drive the feed spring 7 to rotate.

[0086] On the basis of the above-mentioned spacer 8 and drive shaft 5 structure, the disassembly and installation of the feed spring 7 are also facilitated. The feed spring 7 and the drive shaft 5 in this example are preferably connected by a detachable clamping method, and the stability of the connection between the two is ensured based on the strength of the clamping to prevent the feed spring 7 from detaching from the drive shaft 5. This can achieve rapid disassembly and installation between the feed spring 7 and the drive shaft 5 and ensure stability during docking installation.

[0087] See also Figure 3 , which shows an example of the docking between the feed spring 7 and the drive shaft 5 in this example.

[0088] Based on the diagram, in this example, in order to cooperate with the feed spring 7 in a clamping manner, a first fixing hole 521 and a second fixing hole 522 are set on the end face of the second end 52 of the driving shaft 5, wherein the first fixing hole 521 is used to cooperate with the installation of the core shaft 6 and the feed spring 7, and the feed spring 7 is sleeved on the outer periphery of the core shaft 6; and the second fixing hole 522 is configured to cooperate with the feed spring 7 to limit the rotation of the feed spring 7 in the circumferential direction. In some cases, the second fixing hole 522 is also configured to form a corresponding limitation on the movement of the feed spring 7 in the axial direction, such as making it difficult for the feed spring 7 to disengage from the second fixing hole 522.

[0089] As a further explanation, the first fixing hole 521 is in a stepped hole state as a whole, including a large hole section 521a and a small hole section 521b that are interconnected, wherein the small hole section 521b is configured to be detachably connected to the core shaft 6, and the large hole section 521a is configured to accommodate the connecting portion 71 of the feed spring 7 to be inserted therein and to form a clamping with the connecting portion 71. In coordination therewith, the second fixing hole 522 is formed at the bottom of the large hole section 521a in the first fixing hole 521, so as to cooperate with the connecting portion 71 of the feed spring 7 inserted into the large hole section 521a.

[0090] It can be understood that the first fixing hole 521 here is preferably coaxially formed on the end face of the second end 52 of the driving shaft, so as to form a coaxial connection with the feed spring 7 to ensure the reliability of driving the feed spring 7 to rotate.

[0091] With respect to the second end 52 of the drive shaft 5 of the above structure, the connecting portion 71 and the transition portion 72 of the feed spring 7 in this example are sleeved on the outer circumference of the core shaft 6, and the connecting portion 71 together with the core shaft 6 part thereof are integrally inserted into the first fixing hole 52 on the second end 52 of the drive shaft 5, and the core shaft 6 is detachably connected to the small hole section 521b in the first fixing hole 52, while the connecting portion 71 of the feed spring 7 is inserted into the large hole section 521a in the first fixing hole 52, and is supported by the internal core shaft 6 and connected to the first fixing hole 52. A clamping structure is formed between the hole walls of the large hole section 521a in the fixing hole 52, thereby allowing the connecting portion 71 of the feed spring 7 to be stably placed in the second end 52 of the drive shaft 5, i.e., achieving coaxial docking between the feed spring 7 and the drive shaft 5. In this state, based on the clamping structure formed between the connecting portion 71 and the hole wall of the first fixing hole 521, the axial movement of the feed spring 7 relative to the drive shaft 5 is limited to a certain extent, so that the feed spring 7 and the drive shaft 5 can remain relatively fixed in the axial direction.

[0092] In this state, the transition portion 72 on the feed spring 7 is integrally distributed in the transition through hole 82 in the spacer 8 under the support of the core shaft 6, as shown in FIG. Figure 1 and Figure 3 shown.

[0093] On this basis, the feed spring 7 in this example is further formed with a head component 711 on the connecting portion 71, and the head component 711 is configured to match the second fixing hole 522 on the second end 52 of the drive shaft 5, and can be inserted into the second fixing hole 522 on the second end 52 of the drive shaft 5 when the connecting portion 71 of the feed spring 7 is inserted into the first fixing hole 52 on the second end 52 of the drive shaft 5. In this way, the second fixing hole 522 cooperates with the head component 711 inserted therein, and the rotation of the feed spring 7 relative to the drive shaft 5 in the circumferential direction is limited, so that the feed spring 7 and the drive shaft 5 can be relatively fixed in the circumferential direction.

[0094] Furthermore, the head component 711 on the connecting portion 71 of the feed spring 7 is formed at the end of the connecting portion 71 along the axial direction of the feed spring 7, that is, the head component 711 protrudes from the end of the connecting portion 71 along the axial direction of the feed spring 7, which is convenient for molding and for cooperating with the second fixing hole 522.

[0095] As an example, the head component 711 on the connecting portion 71 of the feed spring 7 can be formed by the free end of the connecting portion 71 extending outward along the axial direction of the feed spring 7, so that the head component 711 can be formed simultaneously when the feed spring 7 is formed.

[0096] It can be understood that the molding scheme of the head component 711 here is not limited to this.

[0097] In this way, based on the docking and matching scheme between the above-mentioned connecting part 71 and the second end 52 of the driving shaft 5, the feed spring 7 is limited in both the axial and circumferential directions, so that the feed spring 7 can be firmly connected to the driving shaft 5 to prevent the feed spring 7 from detaching during the transportation of the highly absorbent resin.

[0098] As an alternative solution, a second docking solution may be adopted between the connection portion 71 of the feed spring 7 and the second end 52 of the drive shaft 5 .

[0099] Specifically, the mandrel 6 is detachably placed in the first fixing hole 521 of the second end 52 of the drive shaft 5, and the feed spring 7 is sleeved on the outer periphery of the mandrel 6. At the same time, the connecting portion 71 of the feed spring 7 is interference-fitted with the mandrel 6 located therein to form a clamping structure, which limits the axial movement of the feed spring 7 relative to the drive shaft 5 to a certain extent, so that the feed spring 7 and the drive shaft 5 can be relatively fixed in the axial direction. At the same time, the head component 711 on the feed spring 7 is synchronously inserted into the second fixing hole 522 of the second end 52 of the drive shaft 5, and the second fixing hole 522 forms a corresponding limit on the axial movement of the feed spring 7.

[0100] As another alternative, a third docking fit solution may be adopted between the connection portion 71 of the feed spring 7 and the second end 52 of the drive shaft 5 .

[0101] Specifically, the core shaft 6 is detachably placed in the first fixing hole 521 of the second end 52 of the driving shaft 5, and the feed spring 7 is sleeved on the outer side of the outer periphery of the core shaft 6, the feed spring 7 and the core shaft 6 located therein are clearance matched, and the connecting part 71 of the feed spring 7 and the first fixing hole 521 are clearance matched; the head component 711 on the feed spring 7 is inserted in the second fixing hole 522 of the second end 52 of the driving shaft 5, and the head component 711 and the second fixing hole 522 are interference fit to form a clamping structure, thereby achieving a certain degree of limitation on the axial movement of the feed spring 7 relative to the driving shaft 5, so that the feed spring 7 and the driving shaft 5 can remain relatively fixed in the axial direction, and the axial movement of the feed spring 7 is also correspondingly limited.

[0102] The core shaft 6 in the present device serves as a docking auxiliary component, and is used to cooperate with the docking between the feed spring 7 and the drive shaft 5 to form support for the connecting portion 71 and the transition portion 72 of the feed spring 7.

[0103] See also Figure 6 In some embodiments of this example, the mandrel 6 is cylindrical in shape as a whole, and its size is adapted to the through hole in the middle of the feed spring 7. A fixed end 61 is provided at one end of the mandrel 6, and the fixed end 61 is configured to be adapted to the small hole section 521b in the first fixed hole 521 on the second end 52 of the drive shaft 5, and can be detachably connected thereto.

[0104] As an example, the fixed end 61 of the core shaft 6 can be detachably connected to the small hole section 521b in the first fixing hole 52 on the driving shaft 5 by screw connection. It can be understood that the specific connection method is not limited to this.

[0105] When the core shaft 6 with such a structure cooperates with the docking between the feed spring 7 and the drive shaft 5, a detachable connection is performed between the core shaft 6 and the first fixing hole 521, which facilitates the disassembly and assembly of the core shaft 6 and the feed spring 7; at the same time, the core shaft 6 forms an outward support for the connecting part 71 from the inside of the connecting part 71 of the feed spring 7, thereby ensuring the stability of the docking between the feed spring 7 and the second end 52 of the drive shaft 5.

[0106] As a further improvement, in this example, a corresponding feeding container C is further provided in the feeding device for superabsorbent resin particles, and the feeding container C is correspondingly provided at the downstream side of the feeding port 922 of the guide tube 9 in the feeding device, such as Figure 1 and Fig. 9 shown.

[0107] Specifically, the opening X2 of the discharge container C is greater than or equal to the distribution opening X1 of the discharge port 922 of the guide tube 9 .

[0108] Furthermore, preferably, the opening X2 of the discharge container C is 1 to 2 times the distribution opening X1 of the discharge port 922 of the guide tube 9, that is, X2 ≥ 2X1, so as to form a stable discharge operation coordination with the discharge port 922, so that the highly absorbent resin G can be evenly thrown out from the discharge port 922 of the guide roller 9 and evenly distributed to the discharge container C for discharge, thereby solving the technical problem of accumulation of the highly absorbent resin G discharge.

[0109] The specific structure of the material discharge container C is not limited here, and can be determined according to actual needs. For example, a funnel shape can be adopted, but it is not limited to this.

[0110] See also Figure 1In the feeding device formed based on the above scheme, the feed spring 7 is connected with the drive shaft 5 and is integrally inserted into the feed channel 31 and the guide tube 9 of the feeding box 3. The specific matching structure is as mentioned above and will not be repeated here.

[0111] Driven by the driving part 4, the driving shaft 5 will synchronously drive the feeding spring 7 to rotate to perform rotary feeding. In this way, when the highly absorbent resin G enters the storage container 2 from the feeding port 1 and then enters the discharge box 3, the feeding part 73 of the feeding spring 7 in the discharge box 3 is driven by the driving shaft 5 to transport the highly absorbent resin G to the discharge end 92 of the guide tube 9; then, the conveying part 74 of the feeding spring 7 in the guide tube 9 is driven by the driving shaft 5 to move the highly absorbent resin G to the discharge end 92 of the guide tube 9 to the discharge port 922 as the conveying part 74 of the feeding spring 7 rotates, and the highly absorbent resin G is uniformly discharged into the discharge container C, and then flows from the discharge container C to the next device, thereby completing the addition and transportation of the highly absorbent resin G in the disposable sanitary product manufacturing equipment.

[0112] Since the amount of highly absorbent resin G sent out each time the feed spring 7 turns is certain (during the transportation process, the highly absorbent resin G is located in the spiral space of the feed spring 7), during the application process, the required rotation speed of the feed spring 7 can be calculated based on the gram weight of the highly absorbent resin G required for the disposable sanitary products and the design speed of the disposable sanitary products manufacturing equipment. This is a well-known technology to those skilled in the art and will not be elaborated here.

[0113] Example 2

[0114] This example further provides an optimized solution based on the material unloading device solution given in Example 1.

[0115] In the feeding device provided in Example 1, the feeding spring 7 is driven by the driving part 4 to realize the conveyance of the highly absorbent resin G. During the long-term operation of the disposable sanitary products manufacturing equipment, the feeding spring 7 will be deformed and its length will be lengthened. At this time, the feeding spring 7 needs to be replaced regularly.

[0116] like Figure 3 As shown, since the connection portion 71 and the transition portion 72 of the feed spring 7 are sleeved on the outer side of the circumference of the core shaft 6, and the fixed end 61 of the core shaft 6 is connected to the first fixing hole 521 of the second end 52, when replacing the feed spring 7, it is necessary to disassemble the core shaft 6 and the feed spring 7 from the second end 52 of the drive shaft 5. Usually, when disassembling the cylindrical core shaft 6, the disassembly tool-a wrench is generally directly pinched on the plane processed by the circumference of the core shaft 6, thereby clamping and disassembling. However, in this solution, the outer side of the core shaft 6 is sleeved with a feed spring 7, and the core shaft 6 cannot be disassembled and assembled by conventional methods.

[0117] In this regard, in order to facilitate the disassembly and installation of the feed spring 7, see Figure 6 and Figure 7 In this embodiment, a plurality of disassembly holes 62 are provided on the side wall of the free end 63 of the core shaft 6 away from the fixed end 61 .

[0118] Specifically, in this embodiment, at least two disassembly holes 62 are arranged along the circumferential direction on the side wall of the free end 63 of the mandrel 6. Preferably, the two disassembly holes 62 are distributed at 90° along the circumference of the mandrel 6, thereby facilitating operation from multiple angles and improving convenience of use.

[0119] It is understandable that the arrangement of the disassembly hole 62 on the core shaft 6 is not limited thereto, and other feasible arrangement arrangements may be adopted according to actual needs.

[0120] Based on the core shaft 6 provided with multiple disassembly holes 62, even if a feed spring 7 is sleeved on the outside, when disassembly is required, it is only necessary to insert the disassembly tool into the disassembly hole 62 of the core shaft 6, thereby realizing the disassembly and installation of the feed spring 7, which greatly reduces the replacement and daily maintenance time of the feed spring 7 and is beneficial to improving production efficiency.

[0121] Example 3

[0122] This example further provides an optimized solution based on the material unloading device solution given in Example 1.

[0123] In the unloading device according to the first embodiment, the driving shaft 5 is specifically arranged based on the bearing B and cooperates with the spacer 8, and can drive the feeding spring 7 to rotate to convey the granular high-absorbency resin G. During long-term operation, the high-absorbency resin G will flow from the guide tube 9 to the driving shaft 5, or when the feeding spring 7 is maintained and replaced, the high-absorbency resin G will be accidentally brought into the driving shaft 5. Since the outer side of the driving shaft 5 has the bearing B, a small amount of the high-absorbency resin G will accidentally enter the bearing B, which will cause damage to the bearing B (such as corrosion of the bearing B) over a long period of time, thereby reducing the rotational force on the driving shaft 5 and affecting the accurate amount of the high-absorbency resin G fed.

[0124] For this, see Figure 8 In this embodiment, a feeding hole 81 is further opened on the spacer 8 near the bearing B. The feeding hole 81 is connected to the transition through hole 82 in the spacer 8, and the opening of the feeding hole 81 is downward (such as toward the ground).

[0125] The discharge hole 81 set in this way can form a discharge channel between the transition through hole 82 in the spacer 8 and the outside, so that the highly absorbent resin G flowing from the guide tube 9 toward the drive shaft 5 can fall from the discharge hole 81 to prevent it from entering the bearing B on the outside of the drive shaft 5, thereby protecting the bearing B (from corrosion caused by the long-term action of the highly absorbent resin G).

[0126] As a further explanation, the feed hole 81 here can be a through hole or a threaded hole. Furthermore, when the feed hole 81 is not in use, it can be blocked with a plug or a screw without affecting the structure of the spacer 8 at all.

[0127] It can be understood that the solution in this example is also applicable to Example 2.

[0128] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A feeding device for highly absorbent resin particles, comprising a storage container, a feeding box, a driving assembly, a core shaft, a feeding spring and a guide tube, characterized in that: The storage container is connected to a discharge box, a feeding channel is provided in the discharge box, the guide tube is provided on the discharge box and is connected to the feeding channel, the feed spring is rotatably inserted into the feeding channel, one end of the feed spring extends from the channel entrance of the feeding channel, is connected to a driving assembly through a core shaft, and the other end of the feed spring extends from the channel exit of the feeding channel and extends into the guide tube; the driving assembly can drive the feed spring to rotate in the feeding channel and the guide tube; the free end of the guide tube is configured to be closed, a discharge port is provided on the tube wall of the guide tube, and the discharge port is distributed along the circumferential and axial directions of the tube wall at the same time.

2. A feeding device for highly absorbent resin particles according to claim 1, characterized in that: The feed openings are distributed in a spiral shape along the tube wall.

3. A feeding device for highly absorbent resin particles according to claim 2, characterized in that: The projection of the discharge port in the axial direction of the guide tube can form a central angle of 0°-90°.

4. A feeding device for highly absorbent resin particles according to claim 1, characterized in that: The guide tube is configured to be circumferentially adjustable relative to the feed box.

5. The feeding device for highly absorbent resin particles according to claim 1, characterized in that: The driving assembly comprises a driving part and a driving shaft, and the driving part is drivingly connected to the driving shaft.

6. A feeding device for highly absorbent resin particles according to claim 5, characterized in that: The core shaft is coaxially detachably connected to the driving shaft, and one end of the feed spring is sleeved on the core shaft to form a detachable clamping connection state with the driving shaft.

7. A feeding device for highly absorbent resin particles according to claim 1, characterized in that: The free end of the core shaft is provided with a disassembly hole along the circumferential direction.

8. A feeding device for highly absorbent resin particles according to claim 6, characterized in that: A head assembly is formed at one end of the feed spring. The head assembly can be inserted into the drive shaft when the feed spring and the drive shaft are clamped together to limit the circumferential movement of the feed spring relative to the drive shaft.

9. A feeding device for highly absorbent resin particles according to claim 1, characterized in that: The feeding device also includes a spacer, which is arranged between the driving assembly and the feeding box. A transition cavity is formed inside the spacer, one port of the transition cavity is connected to the feeding channel in the feeding box, and the other port is arranged in cooperation with the driving assembly; the transition cavity accommodates the mating part of the feed spring and the core shaft; a feeding hole is opened in the spacer, and the feeding hole is connected to the transition cavity inside the spacer.

10. A feeding device for highly absorbent resin particles according to claim 1, characterized in that: The feeding device also includes a feeding container, which is correspondingly arranged on the downstream side of the feeding port of the guide tube. The opening of the feeding container is greater than or equal to the opening of the feeding port of the guide tube, and the opening of the feeding container is 1 to 2 times the opening of the feeding port of the guide tube.

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