Automatic separating and roll switching device for melt-blown cloth

Abstract

The invention relates to the related technical field of melt-blown cloth production equipment, in particular to an automatic melt-blown cloth separating and roll switching device which comprises a bottom plate, a fixing plate is fixedly connected to the upper surface of the bottom plate, and a positioning mechanism is arranged on the surface of one side of the fixing plate. According to the automatic separating and winding switching device for the melt-blown cloth, through the arrangement of the positioning mechanism, a motor is started to drive a threaded rod to rotate, a positioning plate can linearly move in the axial direction of the threaded rod, and when the positioning plate moves along with rotation of the threaded rod, a limiting block can also move along with the positioning plate; the limiting block plays a role in limiting and guiding in the moving process of the positioning plate, the positioning mechanism can achieve accurate position adjustment and stable positioning of the melt-blown cloth, and important guarantee is provided for efficient operation of the automatic melt-blown cloth separating and roll switching device. By means of the design, the problem that the melt-blown cloth is prone to deviation in the slitting process can be effectively solved, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to meltblown fabric production equipment, and in particular to a device for automatically dividing and switching rolls of meltblown fabrics. Background Art

[0002] Meltblown cloth production equipment is a high-tech mechanical device specially used for producing meltblown cloth. It converts polymer raw materials (such as polypropylene, etc.) into meltblown cloth, a non-woven fabric material with an ultra-fine fiber structure, through a series of complex process such as high-temperature melting, extrusion, spinning, cooling, and web forming. This material has a unique fiber structure and good filtering and adsorption properties. It is widely used in many fields such as medical care, air filtration, environmental protection, and personal protection. In the production process of meltblown cloth, slitting and roll changing operations are key links. Therefore, there is a special need for an automatic slitting and rolling device for meltblown cloth.

[0003] However, the existing automatic slitting and cutting device for meltblown fabrics does not accurately limit the position of the meltblown fabrics during the transmission process, and the meltblown fabrics are prone to deviation, thus affecting the slitting effect. Summary of the invention

[0004] The object of the present invention is to provide an automatic splitting and switching roll device for meltblown cloth, so as to solve the problem that the meltblown cloth is not accurately limited during the transmission process, and the meltblown cloth is prone to deviation, thereby affecting the slitting effect.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for automatically dividing and switching rolls of meltblown cloth, comprising a bottom plate, a fixed plate is fixedly connected to the upper surface of the bottom plate, a first rotating shaft is rotatably connected to the inner surface of the fixed plate, a first conveying roller is fixedly connected to one end surface of the first rotating shaft, a second rotating shaft is rotatably connected to the inner surface of the fixed plate, a second conveying roller is fixedly connected to one end surface of the first rotating shaft, a third rotating shaft is rotatably connected to the inner surface of the fixed plate, a winding roller is fixedly connected to one end surface of the first rotating shaft, a roll-changing mechanism is arranged on the upper surface of the bottom plate, a positioning mechanism is arranged on one side surface of the fixed plate, and a slitting mechanism is arranged on one side surface of the fixed plate; The positioning mechanism includes a motor, a threaded rod, a positioning plate, a limiting block, a limiting plate and a limiting groove, wherein a motor is fixedly connected to a surface of one side of the fixing plate, a threaded rod is fixedly connected to a surface of one end of the motor, a positioning plate is threadedly connected to an outer surface of the threaded rod, a limiting block is fixedly connected to a lower surface of the positioning plate, a limiting plate is slidably connected to an outer surface of the limiting block, and a limiting groove is provided on an inner surface of the limiting plate.

[0006] Preferably, the outer wall size of the third rotating shaft matches the inner wall size of the fixed plate, and two groups of the third rotating shaft are provided.

[0007] Preferably, the positioning plate forms a sliding structure through a motor and a threaded rod, and the inner wall size of the limiting groove is consistent with the outer wall size of the limiting block.

[0008] Preferably, the roll changing mechanism comprises a two-stage cylinder, a push rod, a connecting plate, a sliding plate, a rotating groove, a rotating block, a cloth roller, cloth, a sliding block, a limit block, a fixed rod, a sliding groove and a limit groove, the upper surface of the bottom plate is fixedly connected to the two-stage cylinder, the surface of the two-stage cylinder is fixedly connected to the push rod, one end surface of the push rod is fixedly connected to the connecting plate, one side surface of the connecting plate is fixedly connected to the sliding plate, the inner surface of the sliding plate is provided with a rotating groove, the inner surface of the rotating groove is rotatably connected to the rotating block, one end surface of the rotating block is fixedly connected to the cloth roller, the outer surface of the cloth roller is connected to the cloth, one side surface of the sliding plate is fixedly connected to the sliding block, one side surface of the sliding block is fixedly connected to the limiting block, the outer surface of the limiting block is slidably connected to the fixing rod, the inner surface of the fixing rod is provided with a sliding groove, and the inner surface of the fixing rod is provided with a limiting groove.

[0009] Preferably, the connecting plate forms a lifting structure through a push rod and a two-stage cylinder, and two groups of sliding plates are provided.

[0010] Preferably, the inner wall size of the rotating groove matches the outer wall size of the rotating block, and a plurality of groups of cloth rollers are arranged at equal intervals.

[0011] Preferably, two groups of the limiting blocks are symmetrically arranged around the central axis of the sliding block, and the outer wall size of the limiting blocks matches the inner wall size of the limiting groove.

[0012] Preferably, the outer wall size of the sliding block matches the inner wall size of the sliding groove, and two groups of fixing rods are provided.

[0013] Preferably, the slitting mechanism includes a fixed column, a limiting plate, a connecting block, a blade slot and a blade, a side surface of the fixed plate is fixedly connected to the fixed column, an outer surface of the fixed column is fixedly connected to the limiting plate, an outer surface of the fixed column is rotatably connected to the connecting block, a surface of the connecting block is provided with a blade slot, and an inner surface of the blade slot is slidably connected to the blade.

[0014] Preferably, the inner wall size of the blade groove matches the outer wall size of the blade, a plurality of groups of the limiting plates are arranged at equal intervals, and the blade is fixedly connected to the connecting block by bolts.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the automatic roll-switching device for meltblown cloth, through the setting of the positioning mechanism, when the automatic roll-switching device for meltblown cloth starts to operate or the position of the meltblown cloth needs to be adjusted, the control system sends a command to the motor, and the motor starts to operate after receiving the signal. A threaded rod is fixedly connected to the surface of one end of the motor. When the motor rotates, the threaded rod is driven to rotate together. Due to the effect of the thread, when the threaded rod rotates, the positioning plate will move linearly along the axial direction of the threaded rod. According to the rotation direction and speed of the motor, the positioning plate can achieve precise forward or backward movement. The lower surface of the positioning plate is fixedly connected with Limiting block, when the positioning plate moves with the rotation of the threaded rod, the limiting block will also move with the positioning plate. The limiting block plays a limiting and guiding role in the movement of the positioning plate. The size of the limiting groove matches the outer wall size of the limiting block, so that the limiting block can only slide in the limiting groove, ensuring that the movement of the positioning plate is more stable and accurate. The positioning mechanism can achieve precise position adjustment and stable positioning of the meltblown cloth, which provides an important guarantee for the efficient operation of the automatic splitting and switching device for meltblown cloth. In actual use, this design can effectively solve the problem that the meltblown cloth is prone to offset during the slitting process, thereby improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the side appearance structure of the present invention; Figure 2 This is a schematic diagram of the structure of the two-stage cylinder and the push rod cooperating with each other in the present invention; Figure 3 This is a schematic diagram of the structure of the rotation groove and the rotation block cooperating with each other in the present invention; Figure 4 This is a schematic diagram of the structure of the cooperation between the limiting block and the limiting groove of the present invention; Figure 5 It is a schematic diagram of the structure of the first rotating shaft and the first conveying roller cooperating with each other in the present invention; Figure 6 This is a schematic diagram of the structure of the limiting groove and the limiting block cooperating with each other in the present invention; Figure 7 It is a schematic diagram of the structure of the winding roller and the third rotating shaft cooperating with each other in the present invention; Figure 8 It is a schematic diagram of the structure of the blade slot and the blade cooperating with each other in the present invention.

[0017] In the figure: 1, bottom plate; 2, fixed plate; 3, first rotating shaft; 4, first conveying roller; 5, second rotating shaft; 6, second conveying roller; 7, third rotating shaft; 8, winding roller; 9, roll changing mechanism; 901, two-stage cylinder; 902, push rod; 903, connecting plate; 904, sliding plate; 905, rotating groove; 906, rotating block; 907, cloth roller; 908, cloth; 909, sliding block; 910, Limit block; 911, fixed rod; 912, sliding groove; 913, limit groove; 10, positioning mechanism; 1001, motor; 1002, threaded rod; 1003, positioning plate; 1004, limit block; 1005, limit plate; 1006, limit groove; 11, slitting mechanism; 1101, fixed column; 1102, limit plate; 1103, connecting block; 1104, blade groove; 1105, blade. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-8 The present invention provides a technical solution: a device for automatically dividing and switching rolls of meltblown cloth, comprising a bottom plate 1, a fixed plate 2 is fixedly connected to the upper surface of the bottom plate 1, a first rotating shaft 3 is rotatably connected to the inner surface of the fixed plate 2, a first conveying roller 4 is fixedly connected to one end surface of the first rotating shaft 3, a second rotating shaft 5 is rotatably connected to the inner surface of the fixed plate 2, a second conveying roller 6 is fixedly connected to one end surface of the first rotating shaft 3, a third rotating shaft 7 is rotatably connected to the inner surface of the fixed plate 2, a winding roller 8 is fixedly connected to one end surface of the first rotating shaft 3, a roll changing mechanism 9 is arranged on the upper surface of the bottom plate 1, a positioning mechanism 10 is arranged on one side surface of the fixed plate 2, and a slitting mechanism 11 is arranged on one side surface of the fixed plate 2; The positioning mechanism 10 includes a motor 1001, a threaded rod 1002, a positioning plate 1003, a limiting block 1004, a limiting plate 1005 and a limiting groove 1006. The motor 1001 is fixedly connected to a surface of one side of the fixing plate 2, the threaded rod 1002 is fixedly connected to a surface of one end of the motor 1001, the outer surface of the threaded rod 1002 is threadedly connected to the positioning plate 1003, the lower surface of the positioning plate 1003 is fixedly connected to the limiting block 1004, the outer surface of the limiting block 1004 is slidably connected to the limiting plate 1005, and the limiting plate 1005 is slidably connected to the outer surface of the limiting plate 1005. The inner surface is provided with a limiting groove 1006. Through the arrangement of the motor 1001, the threaded rod 1002, the positioning plate 1003, the limiting block 1004, the limiting plate 1005 and the limiting groove 1006, when in use, when the melt-blown cloth automatic switching roll device starts to run or the position of the melt-blown cloth needs to be adjusted, the control system sends a command to the motor 1001, and the motor 1001 starts to run after receiving the signal. The threaded rod 1002 is fixedly connected to the surface of one end of the motor 1001. When the motor 1001 rotates, the threaded rod 1002 is driven to rotate together. Due to the effect of the thread, when the threaded rod 1002 rotates, the positioning plate 1003 will move linearly along the axial direction of the threaded rod 1002. According to the rotation direction and speed of the motor 1001, the positioning plate 1003 can achieve precise forward or backward movement. A limiting block 1004 is fixedly connected to the lower surface of the positioning plate 1003. When the positioning plate 1003 moves with the rotation of the threaded rod 1002, the limiting block 1004 will also move with the positioning plate 1003. The limiting block 1004 plays a role in the movement of the positioning plate 1003. The limiting groove 1006 has the function of limiting and guiding. The size of the limiting groove 1006 matches the outer wall size of the limiting block 1004, so that the limiting block 1004 can only slide in the limiting groove 1006, ensuring that the movement of the positioning plate 1003 is more stable and accurate. The positioning mechanism 10 can realize the precise position adjustment and stable positioning of the meltblown cloth, which provides an important guarantee for the efficient operation of the automatic splitting and switching device for the meltblown cloth. In actual use, this design can effectively solve the problem that the meltblown cloth is prone to deviation during the slitting process, thereby improving production efficiency and product quality.

[0020] Furthermore, the outer wall size of the third rotating shaft 7 is consistent with the inner wall size of the fixed plate 2. The third rotating shaft 7 is provided with two groups. Through the setting of the third rotating shaft 7, when in use, the outer wall size of the third rotating shaft 7 is consistent with the inner wall size of the fixed plate 2, so that the winding roller 8 is more stable when rotating, ensuring that the meltblown cloth is evenly wound on the winding roller 8 during the winding process.

[0021] Furthermore, the positioning plate 1003 forms a sliding structure through the motor 1001 and the threaded rod 1002, and the inner wall size of the limiting groove 1006 is consistent with the outer wall size of the limiting block 1004. Through the setting of the limiting groove 1006 and the limiting block 1004, when in use, when the positioning plate 1003 slides under the action of the motor 1001 and the threaded rod 1002, the limiting block 1004 will slide synchronously in the limiting groove 1006. Due to the matching of the sizes, the limiting block 1004 can only move along the direction specified by the limiting groove 1006, thereby limiting the movement direction of the positioning plate 1003, so that it can only move in a straight line, thereby improving the accuracy and reliability of the position control of the meltblown cloth.

[0022] Furthermore, the roll changing mechanism 9 includes a two-stage cylinder 901, a push rod 902, a connecting plate 903, a sliding plate 904, a rotating groove 905, a rotating block 906, a cloth roller 907, a cloth 908, a sliding block 909, a limiting block 910, a fixed rod 911, a sliding groove 912 and a limiting groove 913. The upper surface of the bottom plate 1 is fixedly connected with the two-stage cylinder 901, the surface of the two-stage cylinder 901 is fixedly connected with the push rod 902, one end surface of the push rod 902 is fixedly connected with the connecting plate 903, one side surface of the connecting plate 903 is fixedly connected with the sliding plate 904, the inner side surface of the sliding plate 904 is provided with a rotating groove 905, the inner side surface of the rotating groove 905 is rotatably connected with the rotating block 906, and one end surface of the rotating block 906 A cloth roller 907 is fixedly connected, and a cloth 908 is connected to the outer surface of the cloth roller 907. A sliding block 909 is fixedly connected to one side surface of the sliding plate 904. A limiting block 910 is fixedly connected to one side surface of the sliding block 909. A fixed rod 911 is slidably connected to the outer surface of the limiting block 910. A sliding groove 912 is provided on the inner surface of the fixed rod 911. A limiting groove 913 is provided on the inner surface of the fixed rod 911. Through the arrangement of the two-stage cylinder 901, the push rod 902, the connecting plate 903, the sliding plate 904, the rotating groove 905, the rotating block 906, the cloth roller 907, the cloth 908, the sliding block 909, the limiting block 910, the fixed rod 911, the sliding groove 912 and the limiting groove 913, when the device is in use, When it is necessary to change the roll, the control system sends a command to the two-stage cylinder 901. After receiving the signal, the two-stage cylinder 901 starts to work, and the piston movement inside it pushes the push rod 902 to extend outward. Since one end of the push rod 902 is fixedly connected to the two-stage cylinder 901, and the other end is fixedly connected to the connecting plate 903, the extension movement of the push rod 902 drives the connecting plate 903 to move upward. One side surface of the connecting plate 903 is fixedly connected to the sliding plate 904. When the connecting plate 903 rises, the sliding plate 904 also rises together. The cloth roller 907 fixedly connected to the surface of one end of the rotating block 906 and the cloth 908 wrapped around the outer surface of the cloth roller 907 will also rise with the rise of the sliding plate 904, so as to prepare for the roll changing operation. After the old cloth roller 907 is wound up, the two-stage cylinder 901 lifts the entire parts related to the cloth roller 907 by pushing the push rod 902, so that the new roll reaches the winding position, and the rotating block 906 can rotate freely in the rotating groove 905, thereby driving the cloth roller 907 to rotate smoothly. When the two-stage cylinder 901 pushes the sliding plate 904 to rise, the sliding block 909 slides smoothly in the sliding groove 912, ensuring that the sliding plate 904 can rise vertically without tilting or deviating from the predetermined path. The cooperation of the limit block 910 and the limit groove 913 further enhances the restriction and guiding effect on the movement of the sliding plate 904. The various components work together, and the roll changing mechanism 9 realizes efficient and accurate roll changing operation.It ensures the continuous operation of the meltblown cloth automatic roll switching device, and improves production efficiency and product quality.

[0023] Furthermore, the connecting plate 903 forms a lifting structure with the two-stage cylinder 901 through the push rod 902, and the sliding plate 904 is provided with two groups. Through the setting of the connecting plate 903, the push rod 902 and the two-stage cylinder 901, when in use, when the two-stage cylinder 901 is working, the piston movement inside it generates thrust or pulling force, which is transmitted to the connecting plate 903 through the push rod 902. The two-stage cylinder 901 can realize precise adjustment of the lifting position of the connecting plate 903 through precise air pressure control. By controlling the intake and exhaust volume of the cylinder through the control system, the stroke of the piston can be accurately controlled, thereby accurately controlling the rising height and descending position of the connecting plate 903.

[0024] Furthermore, the inner wall size of the rotating groove 905 is consistent with the outer wall size of the rotating block 906, and multiple groups of cloth rollers 907 are arranged at equal intervals. Through the arrangement of the rotating groove 905 and the rotating block 906, when in use, during the winding process of the cloth 908, the flexible rotation of the rotating block 906 in the rotating groove 905 ensures that the cloth roller 907 can evenly wind up the cloth 908, thereby improving the quality and efficiency of the winding.

[0025] Furthermore, two groups of limit blocks 910 are symmetrically arranged with respect to the central axis of the sliding block 909, and the outer wall size of the limit blocks 910 matches the inner wall size of the limit groove 913. Through the setting of the limit blocks 910, when in use, the two groups of symmetrically arranged limit blocks 910 can provide balanced force support when the sliding block 909 moves, thereby maintaining the smooth operation of the sliding block 909 and the entire sliding plate 904.

[0026] Furthermore, the outer wall size of the sliding block 909 is consistent with the inner wall size of the sliding groove 912, and two groups of fixing rods 911 are provided. Through the setting of the sliding block 909 and the sliding groove 912, when in use, the outer wall size of the sliding block 909 is consistent with the inner wall size of the sliding groove 912, so that the sliding of the sliding block 909 in the sliding groove 912 is smoother, thereby improving the operating stability of the equipment.

[0027] Furthermore, the slitting mechanism 11 includes a fixed column 1101, a limiting plate 1102, a connecting block 1103, a blade slot 1104 and a blade 1105. The fixed column 1101 is fixedly connected to one side surface of the fixed plate 2, the outer surface of the fixed column 1101 is fixedly connected to the limiting plate 1102, the outer surface of the fixed column 1101 is rotatably connected to the connecting block 1103, the surface of the connecting block 1103 is provided with a blade slot 1104, and the inner surface of the blade slot 1104 is slidably connected to the blade 1105. By arranging the fixed column 1101, the limiting plate 1102, the connecting block 1103, the blade slot 1104 and the blade 1105, when in use, The outer surface of the fixed column 1101 is fixedly connected with a limit plate 1102. The main function of the limit plate 1102 is to limit the rotation range of the connecting block 1103 on the fixed column 1101. The blade slot 1104 is opened on the surface of the connecting block 1103, providing an installation position for the blade 1105. The blade 1105 can be slidably connected in the blade slot 1104. This design facilitates the installation and replacement of the blade 1105. When the blade 1105 is worn or needs to be replaced with a blade of a different specification, the blade 1105 can be removed from the blade slot 1104 for replacement by loosening the bolt. The operation is simple and convenient, which improves the convenience of replacing the blade 1105.

[0028] Furthermore, the inner wall size of the blade slot 1104 is consistent with the outer wall size of the blade 1105, and multiple groups of limit plates 1102 are arranged at equal intervals. The blade 1105 is fixedly connected to the connecting block 1103 by bolts. Through the setting of the blade 1105 and the blade slot 1104, when in use, the inner wall size of the blade slot 1104 is consistent with the outer wall size of the blade 1105, and the blade 1105 can be tightly installed in the blade slot 1104, so that the blade 1105 always remains in the correct position, ensuring that the cutting lines are neat and smooth.

[0029] Working principle: When the equipment needs to change rolls, the control system sends a command to the two-stage cylinder 901. After receiving the signal, the two-stage cylinder 901 starts to work, and the piston movement inside it pushes the push rod 902 to extend outward. Since one end of the push rod 902 is fixedly connected to the two-stage cylinder 901, and the other end is fixedly connected to the connecting plate 903, the extension movement of the push rod 902 drives the connecting plate 903 to move upward. One side surface of the connecting plate 903 is fixedly connected to the sliding plate 904. When the connecting plate 903 rises, the sliding plate 904 also rises together. The cloth roller 907 fixedly connected to the surface of one end of the rotating block 906 and the cloth 908 wrapped around the outer surface of the cloth roller 907 will also rise with the rise of the sliding plate 904. The roll changing operation is ready. After the old cloth roller 907 is wound up, the two-stage cylinder 901 lifts the entire components related to the cloth roller 907 by pushing the push rod 902, so that the new roll reaches the winding position, and the rotating block 906 can rotate freely in the rotating groove 905, thereby driving the cloth roller 907 to rotate smoothly. When the two-stage cylinder 901 pushes the sliding plate 904 to rise, the sliding block 909 slides smoothly in the sliding groove 912, ensuring that the sliding plate 904 can rise vertically without tilting or deviating from the predetermined path. The cooperation of the limit block 910 and the limit groove 913 further enhances the restriction and guiding effect on the movement of the sliding plate 904. The various components work together, and the roll changing mechanism 9 realizes efficient and accurate The roll changing operation ensures the continuous operation of the automatic roll-splitting and switching device for meltblown cloth, improves the production efficiency and product quality, and the cloth 908 is transmitted to the slitting mechanism 10 through the first conveyor roller 4. When the automatic roll-splitting and switching device for meltblown cloth starts to run or the position of the meltblown cloth needs to be adjusted, the control system sends a command to the motor 1001, and the motor 1001 starts to run after receiving the signal. A threaded rod 1002 is fixedly connected to the surface of one end of the motor 1001. When the motor 1001 rotates, the threaded rod 1002 is driven to rotate together. Due to the effect of the thread, when the threaded rod 1002 rotates, the positioning plate 1003 will move linearly along the axial direction of the threaded rod 1002. According to the rotation direction and speed of the motor 1001, the positioning plate 1003 can be realized. In order to accurately move forward or backward, a limiting block 1004 is fixedly connected to the lower surface of the positioning plate 1003. When the positioning plate 1003 moves with the rotation of the threaded rod 1002, the limiting block 1004 will also move with the positioning plate 1003. The limiting block 1004 plays a limiting and guiding role in the movement of the positioning plate 1003. The size of the limiting groove 1006 matches the outer wall size of the limiting block 1004, so that the limiting block 1004 can only slide in the limiting groove 1006, ensuring that the movement of the positioning plate 1003 is more stable and accurate. The positioning mechanism 10 can realize the precise position adjustment and stable positioning of the meltblown cloth, which provides an important guarantee for the efficient operation of the meltblown cloth automatic switching roll device. In actual use,This design can effectively solve the problem that meltblown cloth is prone to offset during the slitting process, and improve production efficiency and product quality. The outer surface of the fixed column 1101 is fixedly connected with a limit plate 1102. The main function of the limit plate 1102 is to limit the rotation range of the connection block 1103 on the fixed column 1101. The blade groove 1104 is opened on the surface of the connection block 1103, providing an installation position for the blade 1105. The blade 1105 can be slidably connected in the blade groove 1104. This design facilitates the installation and replacement of the blade 1105. When the blade 1105 is worn or needs to be replaced with a blade of a different specification, the blade 1105 can be removed from the blade groove 1104 for replacement by loosening the bolt. The operation is simple and convenient, which improves the convenience of replacing the blade 1105. The slit cloth 908 is transmitted to the winding roller 8 through the second conveying roller 6 to complete the winding. The model of the motor 1001 is YE2-132S-4.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for automatically dividing and switching rolls of meltblown fabrics, comprising a bottom plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected to a fixed plate (2); the inner surface of the fixed plate (2) is rotatably connected to a first rotating shaft (3); one end surface of the first rotating shaft (3) is fixedly connected to a first conveying roller (4); the inner surface of the fixed plate (2) is rotatably connected to a second rotating shaft (5); one end surface of the first rotating shaft (3) is fixedly connected to a second conveying roller (6); the inner surface of the fixed plate (2) is rotatably connected to a third rotating shaft (7); one end surface of the first rotating shaft (3) is fixedly connected to a winding roller (8); a roll changing mechanism (9) is provided on the upper surface of the bottom plate (1); a positioning mechanism (10) is provided on one side surface of the fixed plate (2); and a slitting mechanism (11) is provided on one side surface of the fixed plate (2); The positioning mechanism (10) comprises a motor (1001), a threaded rod (1002), a positioning plate (1003), a limiting block (1004), a limiting plate (1005) and a limiting groove (1006); the motor (1001) is fixedly connected to a surface of one side of the fixing plate (2); the threaded rod (1002) is fixedly connected to a surface of one end of the motor (1001); the positioning plate (1003) is threadedly connected to an outer surface of the threaded rod (1002); the limiting block (1004) is fixedly connected to a lower surface of the positioning plate (1003); the limiting plate (1005) is slidably connected to an outer surface of the limiting block (1004); and the limiting groove (1006) is provided on an inner surface of the limiting plate (1005).

2. According to claim 1, a device for automatically dividing and switching rolls of meltblown fabrics is characterized in that: The outer wall size of the third rotating shaft (7) matches the inner wall size of the fixed plate (2), and two groups of the third rotating shaft (7) are provided.

3. The device for automatically dividing and switching rolls of meltblown fabrics according to claim 1 is characterized in that: The positioning plate (1003) forms a sliding structure through the motor (1001) and the threaded rod (1002), and the inner wall size of the limiting groove (1006) matches the outer wall size of the limiting block (1004).

4. The device for automatically dividing and switching rolls of meltblown fabrics according to claim 1 is characterized in that: The roll changing mechanism (9) comprises a two-stage cylinder (901), a push rod (902), a connecting plate (903), a sliding plate (904), a rotating groove (905), a rotating block (906), a cloth roller (907), cloth (908), a sliding block (909), a limiting block (910), a fixed rod (911), a sliding groove (912) and a limiting groove (913); the upper surface of the bottom plate (1) is fixedly connected to the two-stage cylinder (901); the surface of the two-stage cylinder (901) is fixedly connected to the push rod (902); one end surface of the push rod (902) is fixedly connected to the connecting plate (903); one side surface of the connecting plate (903) is fixedly connected to the sliding plate (904); the sliding plate ( A rotating groove (905) is provided on the inner surface of the rotating groove (905), a rotating block (906) is rotatably connected to the inner surface of the rotating groove (905), a cloth roller (907) is fixedly connected to one end surface of the rotating block (906), and a cloth (908) is connected to the outer surface of the cloth roller (907), a sliding block (909) is fixedly connected to one side surface of the sliding plate (904), a limiting block (910) is fixedly connected to one side surface of the sliding block (909), a fixed rod (911) is slidably connected to the outer surface of the limiting block (910), a sliding groove (912) is provided on the inner surface of the fixing rod (911), and a limiting groove (913) is provided on the inner surface of the fixing rod (911).

5. The device for automatically dividing and switching rolls of meltblown fabrics according to claim 4 is characterized in that: The connecting plate (903) forms a lifting structure with a two-stage cylinder (901) via a push rod (902), and two groups of sliding plates (904) are provided.

6. The device for automatically dividing and switching rolls of meltblown fabrics according to claim 4 is characterized in that: The inner wall size of the rotating groove (905) matches the outer wall size of the rotating block (906), and a plurality of groups of cloth rollers (907) are arranged at equal intervals.

7. The device for automatically dividing and switching rolls of meltblown fabrics according to claim 4 is characterized in that: The limiting blocks (910) are arranged in two groups symmetrically about the central axis of the sliding block (909), and the outer wall dimensions of the limiting blocks (910) match the inner wall dimensions of the limiting grooves (913).

8. The device for automatically dividing and switching rolls of meltblown fabrics according to claim 4 is characterized in that: The outer wall size of the sliding block (909) matches the inner wall size of the sliding groove (912), and two groups of fixing rods (911) are provided.

9. The device for automatically dividing and switching rolls of meltblown fabrics according to claim 1 is characterized in that: The slitting mechanism (11) comprises a fixed column (1101), a limiting plate (1102), a connecting block (1103), a blade slot (1104) and a blade (1105); a fixed connection to a surface of one side of the fixed plate (2); a fixed connection to the limiting plate (1102) on an outer surface of the fixed column (1101); a connecting block (1103) rotatably connected to the outer surface of the fixed column (1101); a blade slot (1104) is provided on a surface of the connecting block (1103); and a blade (1105) is slidably connected to the inner surface of the blade slot (1104).

10. The device for automatically dividing and switching rolls of meltblown fabrics according to claim 9 is characterized in that: The inner wall size of the blade slot (1104) matches the outer wall size of the blade (1105), a plurality of groups of the limiting plates (1102) are arranged at equal intervals, and the blade (1105) is fixedly connected to the connecting block (1103) by bolts.

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