Portable non-woven fabric reel changing and unwinding device

Abstract

The utility model provides a portable non-woven fabric unwinding and replacing device, which comprises a horizontally arranged mounting base and a plurality of roll shafts for winding non-woven fabrics, and is characterized in that through holes are coaxially formed in the roll shafts, a rotating cylinder is arranged above the mounting base, a first driving motor is coaxially arranged at one end of the rotating cylinder, and a second driving motor is coaxially arranged at the other end of the rotating cylinder. The first driving motor enables the rotating cylinder to rotate with the axis of the cylinder body as the axis. Rotating discs are coaxially installed at the two ends of the rotating cylinder, a plurality of pairs of locking mechanisms are evenly arranged on the peripheries of the rotating discs, a roller shaft can be installed between the rotating discs through the locking mechanisms, and the roller shaft can rotate by taking the roller shaft as the axis; a second driving motor is further arranged above the mounting base, one side of the second driving motor is provided with a propelling mechanism which enables the second driving motor to vertically translate towards the rotating disc, an output shaft of the second driving motor is further provided with an expansion mechanism, and the propelling mechanism pushes the output shaft to be coaxially inserted into the through hole; the expansion mechanism expands to enable the output shaft of the second driving motor to drive the roll shaft to rotate.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabrics, and in particular to a convenient nonwoven fabric roll changing and unwinding device. Background Technology

[0002] Nonwoven fabrics have a wide range of industry applications, covering multiple fields such as sound insulation, heat insulation, heating element manufacturing, mask production, clothing manufacturing, medical supplies, and filling materials. In the production process, the unwinding and roll-changing operations of nonwoven fabrics are crucial.

[0003] Traditional nonwoven fabric winding equipment often relies on manual operation for roll changing, involving moving the empty roll and installing it onto the dual-roller system. This process is particularly cumbersome in large-scale nonwoven fabric production equipment because the rolls are typically long, increasing the difficulty of loading and leading to low efficiency. More importantly, the roll changing process usually requires pausing the entire production line to allow for subsequent nonwoven fabric winding, which undoubtedly further reduces production efficiency.

[0004] To address the aforementioned problem of low production efficiency, existing technologies have proposed a convenient nonwoven fabric roll changing and unwinding device, such as Chinese Patent Application No. CN202420741626.7. This utility model includes a supporting base plate, a right side plate on the top of the supporting base plate, a fixing plate on one side of the right side plate, a first drive motor on the top of the fixing plate, a cylinder on the side of the first drive motor, a first bushing at the end of the cylinder away from the first drive motor, and a disc on the other side of the right side plate with a limiting groove on its surface. This utility model utilizes a combination of components including a first drive motor, a disc, a cylinder, a second drive motor, and a cylinder. The first drive motor drives the entire disc to rotate. When one cylinder is fully wound with nonwoven fabric, the lower cylinder is rotated to the previous position. The cylinder pushes the second drive motor to engage with a rotating rod, causing the rotating rod to drive the cylinder to rotate, continuing to wind up the nonwoven fabric. This saves time when changing empty rolls, thereby improving the production efficiency of nonwoven fabric.

[0005] However, the above-mentioned utility model also has the following problems: the two ends of the roller are mounted in the limiting groove, and the two ends of the roller are provided with fixing rings. The fixing rings are fixed by bolts, so that the roller is fixed on the disc. Every time the roller needs to be removed, the bolts of the fixing rings on both sides need to be disassembled. This process is relatively cumbersome and reduces production efficiency. In addition, the process of the second drive motor being pushed and engaging with the rotating rod requires precise alignment, which slows down production efficiency. If the alignment is not correct, it also increases the production risk. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model proposes a convenient nonwoven fabric unwinding and rewinding device, which solves the problems of inconvenient roller disassembly and time-consuming and inefficient production due to the locking of rotating rods in the prior art.

[0007] A convenient nonwoven fabric unwinding and rewinding device includes a horizontally arranged mounting base, a rotating cylinder arranged above the mounting base, and a first drive motor coaxially arranged at one end of the rotating cylinder, which enables the rotating cylinder to rotate about the cylinder axis.

[0008] As shown in the figure, a pair of rotating disks are coaxially mounted at both ends of the rotating cylinder 3, and several rollers are arranged between the pair of rotating disks. The axis of the rollers is parallel to the axis of the rotating cylinder, and the rollers are coaxially provided with through holes. Several locking mechanisms are evenly provided on the outer circumference of the rotating disks. A roller can be installed between the pair of rotating disks by a pair of locking mechanisms on the pair of rotating disks, and the roller can rotate on its own axis.

[0009] A second drive motor is also provided above the mounting base, and a propulsion mechanism is provided on one side of the second drive motor to push the second drive motor to move vertically towards the rotating disk surface. The output shaft of the second drive motor is also provided with an expansion mechanism. The propulsion mechanism pushes the output shaft of the second drive motor to be coaxially inserted into the through hole, and the expansion mechanism expands so that the output shaft of the second drive motor can drive the roller to rotate.

[0010] Furthermore, the locking mechanism includes several mounting slots evenly opened on the outer periphery of the rotating disk. The mounting slots are symmetrical with respect to the diameter of the rotating disk surface and the openings face away from the center of the rotating disk surface. A pair of telescopic pins are embedded in the slot walls on both sides of the mounting slots, and a telescopic mechanism is provided inside the rotating disk so that the telescopic pins can extend perpendicularly from the slot walls to the fixed roller shaft.

[0011] Furthermore, a first tooth protruding parallel to the surface of the rotating disk is provided on one side of the telescopic pin, and the first tooth is evenly distributed along the axis of the telescopic pin. The telescopic mechanism includes a drive gear provided on one side of the telescopic pin. The rotation surface of the drive gear is coplanar with the surface of the rotating disk and meshes with the first tooth. A drive rack is provided on the side of the drive gear away from the telescopic pin. The drive rack meshes with the drive gear and its moving surface is coplanar with the surface of the rotating disk. A first cylinder is provided at one end of the drive rack. The first cylinder pushes the drive rack to translate along its own axis, driving the drive gear to rotate, thereby extending the telescopic pin.

[0012] Furthermore, the roller shaft is coaxially fitted with bushings at both ends, and a fixing ring is coaxially fitted on the outside of the bushing. The fixing ring can be inserted into the mounting groove and cannot rotate after insertion. The bushing can rotate around its own axis in the fixing ring, and the axis of the fixing ring is parallel to the axis of the rotating disk when it is inserted into the mounting groove.

[0013] Furthermore, the propulsion mechanism includes a mounting plate below the second drive motor, the mounting plate having a guide opening, a guide block being installed below the second drive motor, the side of the guide block near the rotating disk being fixedly connected to a second cylinder installed on the lower side of the mounting plate, and the second cylinder enabling the guide block to move horizontally along the direction of the guide opening, thereby causing the second drive motor to move horizontally.

[0014] Furthermore, the expansion mechanism includes a hollow expansion roller, in which an air bladder made of soft material is provided. The expansion roller has several key holes, which penetrate the roller wall and whose axis is perpendicular to the axis of the expansion roller. Several expansion keys are integrally provided on the air bladder. After the air bladder is inflated, the expansion keys protrude from the key holes and compress the inner wall of the through hole of the roller shaft, thereby fixing it. The outer wall of the expansion roller body is provided with an inflation hole communicating with the air bladder.

[0015] Furthermore, the inner wall of the through hole is provided with textures parallel to the axis of the roller shaft, and the expansion key is also provided with textures parallel to the axis of the roller shaft, thereby increasing the contact area between the expansion key and the roller shaft.

[0016] This utility model has the following advantages: Addressing the problem of low production efficiency caused by the cumbersome disassembly process of the fixing ring, this utility model no longer uses screws to fix the fixing ring to the rotating disk. Instead, it uses telescopic pins set on both sides of the mounting groove to fix the fixing ring in the mounting groove. Furthermore, by providing an expansion roller that can expand, the expansion roller in its contracted state is easier to insert into the through hole, reducing production risks. After insertion, it is inflated to expand, thus fixing the expansion roller to the roller shaft. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rotating disk of this utility model;

[0019] Figure 3 This is a schematic diagram of the mounting groove of this utility model;

[0020] Figure 4 This is a schematic diagram of the propulsion mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the expansion roller of this utility model;

[0022] Figure 6 This is a schematic diagram of the keyhole of this utility model.

[0023] In the above figures: mounting base 1, roller shaft 2, through hole 21, rotating cylinder 3, first drive motor 4, rotating disk 5, second drive motor 6, mounting groove 51, telescopic pin 511, first tooth 5112, drive gear 5113, drive rack 5114, first cylinder 5115, bushing 22, retaining ring 23, mounting plate 61, guide port 62, guide block 63, second cylinder 64, second motor output shaft 65, expansion roller 7, air bladder 71, keyhole 72, expansion key 73, texture 74, air inlet 75, flange 24. Detailed Implementation

[0024] The present invention will now be described with reference to the accompanying drawings:

[0025] To solve the above-mentioned technical problems, this utility model proposes a convenient non-woven fabric unwinding and rewinding device, which can solve the problems of inconvenient disassembly of roller shaft 2 and time-consuming and inefficient production due to the locking of rotating rod in the prior art.

[0026] like Figure 1 and Figure 2 As shown, a convenient nonwoven fabric unwinding and rewinding device includes a horizontally arranged mounting base 1, a rotating cylinder 3 arranged above the mounting base 1, and a first drive motor 4 coaxially arranged at one end of the rotating cylinder 3. The first drive motor 4 enables the rotating cylinder 3 to rotate about the cylinder axis.

[0027] like Figure 2 The rotating cylinder 3 has a pair of rotating disks 5 coaxially mounted at both ends, and several rollers 2 are arranged between the pair of rotating disks 5. The axis of the rollers 2 is parallel to the axis of the rotating cylinder 3, and the rollers 2 are coaxially provided with through holes 21. Several locking mechanisms are evenly provided on the outer circumference of the rotating disks 5. A roller 2 can be installed between the pair of rotating disks 5 by a pair of locking mechanisms, and the roller 2 can rotate on its own axis. Figure 5 As shown, preferably, the roller 2 is also provided with a pair of limiting flanges 24, which protrude vertically outward with the axis of the roller 2 as the center, to prevent the roller 2 from sliding along the axis of the roller 2.

[0028] like Figure 4 and Figure 5 As shown, a second drive motor 6 is also provided above the mounting base 1, and a propulsion mechanism is provided on one side of the second drive motor 6 to push the second drive motor 6 to move vertically towards the surface of the rotating disk 5. The output shaft of the second drive motor 6 is also provided with an expansion mechanism. The propulsion mechanism pushes the output shaft of the second drive motor 6 to be coaxially inserted into the through hole 21, and the expansion mechanism expands so that the output shaft of the second drive motor 6 can drive the roller shaft 2 to rotate.

[0029] like Figure 2 and Figure 3As shown, preferably, the locking mechanism includes a plurality of mounting grooves 51 evenly opened on the outer periphery of the rotating disk 5. The mounting grooves 51 are symmetrical with respect to the diameter of the rotating disk 5, and the openings face away from the center of the rotating disk 5. A pair of telescopic pins 511 are embedded in the groove walls on both sides of the mounting grooves 51, and a telescopic mechanism is provided inside the rotating disk 5 so that the telescopic pins 511 can extend perpendicularly to the groove wall and extend out of the fixed roller shaft 2.

[0030] like Figure 2 and Figure 3 As shown, preferably, a first tooth 5112 protruding parallel to the surface of the rotating disk 5 is provided on one side of the telescopic pin 511, and the first tooth 5112 is evenly distributed along the axis of the telescopic pin 511. The telescopic mechanism includes a drive gear 5113 provided on one side of the telescopic pin 511. The rotation surface of the drive gear 5113 is coplanar with the surface of the rotating disk 5 and meshes with the first tooth 5112. A drive rack 5114 is provided on the side of the drive gear 5113 away from the telescopic pin 511. The drive rack 5114 meshes with the drive gear 5113 and its moving surface is coplanar with the surface of the rotating disk 5. A first cylinder 5115 is provided at one end of the drive rack 5114. The first cylinder 5115 pushes the drive rack 5114 to translate along its own axis, thereby driving the drive gear 5113 to rotate, so that the telescopic pin 511 extends. The rotating disk 5 has a clearance groove inside that does not affect the movement of the first cylinder 5115, the drive gear 5113, the drive rack 5114, and the telescopic pin 511.

[0031] like Figure 2 As shown, preferably, the roller shaft 2 is coaxially sleeved with bushings 22 at both ends, and a fixing ring 23 is coaxially sleeved on the outside of the bushing 22. The fixing ring 23 can be inserted into the mounting groove 51 and cannot rotate after insertion. The bushing 22 can rotate around its own axis in the fixing ring 23, and the axis of the fixing ring 23 is parallel to the axis of the rotating disk 5 when it is inserted into the mounting groove 51.

[0032] like Figure 4 As shown, preferably, the propulsion mechanism includes a mounting plate 61 below the second drive motor 6, the mounting plate 61 having a guide opening 62, a guide block 63 mounted below the second drive motor 6, the side of the guide block 63 near the surface of the rotating disk 5 being fixedly connected to a second cylinder 64 mounted on the lower side of the mounting plate 61, the second cylinder 64 enabling the guide block 63 to translate along the direction of the guide opening 62, thereby causing the second drive motor 6 to translate.

[0033] like Figure 5 and Figure 6As shown, preferably, the expansion mechanism includes a hollow expansion roller 7, in which an air bladder 71 made of soft material is provided. The expansion roller 7 has a plurality of key holes 72, which penetrate the roller wall of the expansion roller 7 and whose axis is perpendicular to the axis of the expansion roller 7. A plurality of expansion keys 73 are integrally provided on the air bladder 71. After the air bladder 71 is inflated, the plurality of expansion keys 73 protrude from the key holes 72 and squeeze the inner wall of the through hole 21 of the roller shaft 2, thereby fixing it. The outer wall of the main body of the expansion roller 7 is provided with an inflation port 75 communicating with the air bladder 71.

[0034] like Figure 5 As shown, preferably, the inner wall of the through hole 21 is provided with texture 74 parallel to the axis of the roller shaft 2, and the expansion key 73 is also provided with texture 74 parallel to the axis of the roller shaft 2, thereby increasing the contact area between the expansion key 73 and the roller shaft 2.

[0035] It should be noted that this utility model also requires an air slip ring coaxially arranged on the rotating cylinder 3 (not shown in the figure) to facilitate the power supply of the first cylinder 5115. The first drive motor 4 and the second drive motor 6 both require an external power supply, and the second cylinder 64 is also connected to an air source for power supply. After the expansion roller 7 is inflated, it does not need to be continuously connected to the air source. In addition, a proximity switch (not shown in the figure) is installed on the wall of the mounting groove 51 to detect whether there is a roller shaft 2 in the mounting groove 51. The movement of the cylinder is controlled by a solenoid valve, and the opening and closing of the solenoid valve is controlled by a controller.

[0036] The method of using this utility model is as follows: After the roller shaft 2 is placed in the mounting groove 51, the proximity switch is triggered by the roller shaft 2. After the controller receives the signal that the roller shaft 2 is present, it controls the cylinder to move, thereby driving the drive rack 5114 to translate and causing the drive gear 5113 to rotate, thereby driving the telescopic pin 511 to extend out of the groove wall of the mounting groove 51, thereby locking the fixing ring 23. The output shaft of the second drive motor 6 can be inserted into the through hole 21 under the drive of the second cylinder 64. After the expansion roller 7 is inflated, the roller shaft 2 can be driven to rotate by the output shaft, thereby realizing the unwinding action of the roller shaft 2. When the second drive motor 6 rotates, the first drive motor 4 does not operate. When the first drive motor 4 rotates, the cylinder under the second drive motor 6 is in the extended state, thereby causing the output shaft and the expansion roller 7 to leave the range of the rotating disk 5.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A convenient nonwoven fabric roll changing and unwinding device, comprising a horizontally arranged mounting base (1), characterized in that: A rotating cylinder (3) is provided above the mounting base (1). A first drive motor (4) is coaxially provided at one end of the rotating cylinder (3). The first drive motor (4) enables the rotating cylinder (3) to rotate about the cylinder axis. The rotating cylinder (3) has a pair of rotating disks (5) coaxially mounted at both ends. Several rollers (2) are arranged between the pair of rotating disks (5). The axis of the rollers (2) is parallel to the axis of the rotating cylinder (3), and the rollers (2) are coaxially provided with through holes (21). Several locking mechanisms are evenly provided on the outer circumference of the rotating disks (5). A roller (2) can be installed between the pair of rotating disks (5) through a pair of locking mechanisms on the two rotating disks (5), and the roller (2) can rotate on its own axis. A second drive motor (6) is also provided above the mounting base (1), and a propulsion mechanism is provided on one side of the second drive motor (6) to push the second drive motor (6) to move vertically towards the surface of the rotating disk (5). The output shaft of the second drive motor (6) is also provided with an expansion mechanism. The propulsion mechanism pushes the output shaft of the second drive motor (6) to be coaxially inserted into the through hole (21). The expansion mechanism expands so that the output shaft of the second drive motor (6) can drive the roller shaft (2) to rotate.

2. The convenient nonwoven fabric roll changing and unwinding device according to claim 1, characterized in that: The locking mechanism includes several mounting slots (51) evenly opened on the outer periphery of the rotating disk (5). The mounting slots (51) are symmetrical about the diameter of the rotating disk (5) and the opening faces away from the center of the rotating disk (5). A pair of telescopic pins (511) are embedded on the groove walls on both sides of the mounting slots (51). The rotating disk (5) is provided with a telescopic mechanism so that the telescopic pins (511) can extend perpendicularly to the groove wall and extend out of the fixed roller shaft (2).

3. The convenient nonwoven fabric roll changing and unwinding device according to claim 2, characterized in that: The telescopic pin (511) has a first tooth (5112) protruding parallel to the surface of the rotating disk (5) on one side, and the first tooth (5112) is evenly distributed along the axis of the telescopic pin (511). The telescopic mechanism includes a drive gear (5113) disposed on one side of the telescopic pin (511). The rotation surface of the drive gear (5113) is coplanar with the surface of the rotating disk (5) and meshes with the first tooth (5112). A drive rack (5114) is provided on the side away from the telescopic pin (511). The drive rack (5114) meshes with the drive gear (5113) and its moving surface is coplanar with the surface of the rotating disk (5). A first cylinder (5115) is provided at one end of the drive rack (5114). The first cylinder (5115) pushes the drive rack (5114) to translate along its own axis, thereby driving the drive gear (5113) to rotate, so that the telescopic pin (511) extends out.

4. The convenient nonwoven fabric roll changing and unwinding device according to claim 1, characterized in that: The roller shaft (2) is coaxially fitted with bushings (22) at both ends. A fixing ring (23) is also coaxially fitted on the outside of the bushing (22). The fixing ring (23) can be inserted into the mounting groove (51) and cannot rotate after insertion. The bushing (22) can rotate around its own axis in the fixing ring (23). When the fixing ring (23) is inserted into the mounting groove (51), its axis is parallel to the axis of the rotating disk (5).

5. A convenient nonwoven fabric roll changing and unwinding device according to claim 1, characterized in that: The propulsion mechanism includes a mounting plate (61) below the second drive motor (6), the mounting plate (61) has a guide opening (62), a guide block (63) is installed below the second drive motor (6), the side of the guide block (63) near the rotating disk (5) is fixedly connected to the second cylinder (61) installed on the lower side of the mounting plate (61), and the second cylinder (64) enables the guide block (63) to move along the direction of the guide opening (62), thereby causing the second drive motor (6) to move.

6. The convenient nonwoven fabric roll changing and unwinding device according to claim 1, characterized in that: The expansion mechanism includes a hollow expansion roller (7) in which an airbag (71) made of soft material is provided. The expansion roller (7) has several key holes (72) that penetrate the roller wall of the expansion roller (7) and whose axis is perpendicular to the axis of the expansion roller (7). Several expansion keys (73) are integrally provided on the airbag (71). After the airbag (71) is inflated, the expansion keys (73) protrude from the key holes (72) and squeeze the inner wall of the through hole (21) of the roller shaft (2) to fix it. An inflation port (75) communicating with the airbag (71) is provided on the outer wall of the main body of the expansion roller (7).

7. A convenient nonwoven fabric roll changing and unwinding device according to claim 6, characterized in that: The inner wall of the through hole (21) is provided with textures (74) parallel to the axis of the roller shaft (2), and the expansion key (73) is also provided with textures (74) parallel to the axis of the roller shaft (2), which increases the contact area between the expansion key (73) and the roller shaft (2).

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