A hot rolling device for nonwoven fabric production

Abstract

The application discloses a hot rolling device for non-woven fabric production, which comprises a rack, two hot rolling rollers rotatably connected to the rack, a plurality of guide rollers, a first motor for driving the hot rolling rollers to rotate, and a controller electrically connected with the first motor, the axes of the two hot rolling rollers are on the same horizontal plane, each hot rolling roller is provided with a cleaning mechanism, the cleaning mechanism comprises a plurality of transmission rollers rotatably connected to the rack, a conveying belt is sleeved on the transmission rollers, a second motor for driving the conveying belt to run is installed on the rack, the second motor is electrically connected with the controller, a plurality of dense bristles are fixedly connected to the outer side of the conveying belt, the bristles abut against the hot rolling rollers, a collecting box is arranged on the side of the conveying belt away from the hot rolling rollers, and a comb plate for separating the filaments and the bristles is installed on the collecting box. The application can clean the non-woven fabric filaments and wadding adhered to the hot rolling rollers in time, and improves the hot rolling effect and the surface quality of the non-woven fabric.

Description

Technical Field

[0001] This invention relates to the field of nonwoven fabric production technology, specifically a hot rolling device for nonwoven fabric production. Background Technology

[0002] Nonwoven fabric, also known as non-woven cloth, needle-punched cotton, needle-punched nonwoven fabric, etc., requires hot rolling processing through hot rolling equipment during the production of nonwoven fabric. Existing hot rolling equipment generally includes a frame, hot rolling rolls installed on the frame, a motor that drives the hot rolling rolls to rotate, and a controller that controls various components.

[0003] Currently, during the hot rolling process of nonwoven fabrics, some of the impurities on the surface of the nonwoven fabric adhere to the surface of the hot rolling roller after being bonded to it. This affects the temperature transfer of the hot rolling roller and the subsequent hot rolling effect of the nonwoven fabric. When hot rolling the next batch of nonwoven fabric, these impurities may also adhere to the surface of the nonwoven fabric again, thus affecting the quality of the nonwoven fabric. Summary of the Invention

[0004] In order to solve at least one of the technical problems mentioned in the background art, the present invention aims to provide a hot rolling device for nonwoven fabric production, which can promptly clean the nonwoven fabric lint adhering to the hot rolling roll, thereby improving the hot rolling effect and the surface quality of the nonwoven fabric.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A hot rolling device for nonwoven fabric production includes a frame, two hot rolling rolls rotatably connected to the frame and several guide rolls, a first motor driving the hot rolling rolls to rotate, and a controller electrically connected to the first motor. The axes of the two hot rolling rolls are on the same horizontal plane. Each hot rolling roll is equipped with a cleaning mechanism, which includes several transmission rolls rotatably connected to the frame. A conveyor belt is fitted on the transmission rolls. A second motor driving the conveyor belt is installed on the frame. The second motor is electrically connected to the controller. Dense bristles are fixed to the outside of the conveyor belt, and the bristles abut against the hot rolling rolls. A dust collection box is provided on the side of the conveyor belt away from the hot rolling rolls. A comb plate for separating lint from the bristles is installed on the dust collection box.

[0007] Preferably, the rotation direction of the hot rolling roll is the same as the rotation direction of the drive roll of the cleaning mechanism it is equipped with.

[0008] Preferably, the width of the conveyor belt is greater than the width of the hot rolling roll, and two sets of guide wheels are rotatably connected to both sides of the frame. Each set of guide wheels has multiple wheels distributed in an arc shape, and the center of the arc is concentric with the center of the cross-section of the hot rolling roll. The outer side of the conveyor belt abuts against all the guide wheels.

[0009] Preferably, it also includes a collection box, which is fixed to the same side of the two collection boxes and communicates with the two collection boxes. A pusher plate is slidably arranged inside the collection box, and a drive component is also installed on the side of the collection box to control the movement of the pusher plate between the side of the collection box away from the collection box and the side of the collection box close to the collection box.

[0010] Preferably, the collection box has a door hinged to its side.

[0011] Preferably, the driving component includes a lead screw rotatably connected inside the collection box, the lead screw being threadedly connected to the pusher plate, a smooth rod fixedly connected inside the collection box, the smooth rod being slidably connected to the pusher plate, and a third motor fixedly connected to the lead screw mounted on the frame, the third motor being electrically connected to the controller.

[0012] Preferably, it also includes a protective plate, one side of which is fixed to the top of the pusher plate, and the other side extends through the collection box near the third motor, with the length of the protective plate not less than the length of the collection box.

[0013] Preferably, the collection box includes a box body, the box body has a material inlet, a feeding frame is fixedly connected to the material inlet, the comb plate is fixedly connected to the feeding frame, and a part of the conveyor belt is located inside the feeding frame.

[0014] Preferably, there are multiple comb plates.

[0015] Preferably, the bristles are made of rubber, the comb plate is made of metal and grounded by a wire, a connecting plate is installed on the frame, and a fur layer is bonded to the side of the connecting plate near the conveyor belt, with the bristles abutting against the fur layer.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Overall, through the setup of the cleaning mechanism, the transmission belt is driven by a second motor. Brushes remove nonwoven fabric lint adhering to the hot rolling rollers. As the conveyor belt moves, the brushes, carrying the lint, travel to the collection box, where the comb plates separate the lint from the brushes and it falls into the collection box. Because the lint adhering to the hot rolling rollers is cleaned in a timely manner, it does not affect the subsequent hot rolling operation of the rollers, nor does it affect the quality of the nonwoven fabric, thus improving the hot rolling effect and the surface quality of the nonwoven fabric.

[0018] 2. On a section of the conveyor belt moving from the collection box towards the hot rolling roll, the rubber bristles on this section generate static electricity upon contact with the bristle layer. This enhances the bristle's ability to adsorb lint and ensures that the lint on the hot rolling roll is not lost after being cleaned by the bristles. Because the comb plate is made of metal and grounded via a wire, the static electricity on the bristles is dissipated upon contact with the comb plate. The lint then falls off the bristles and into the collection box under the resistance of the comb teeth. Overall, this improves the cleaning effect on the hot rolling roll and ensures that the lint on the bristles does not easily fall outside the collection box before entering, guaranteeing high efficiency in lint collection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a cross-sectional schematic diagram of the overall structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the cleaning mechanism of the present invention;

[0022] Figure 4 This is a partial structural schematic diagram of the cleaning mechanism of the present invention.

[0023] In the diagram: 1. Frame; 2. Hot rolling roll; 3. Guide roll; 4. First motor; 51. Transmission roll; 52. Conveyor belt; 53. Second motor; 54. Brush; 55. Collection box; 551. Box body; 552. Feed frame; 56. Comb plate; 57. Guide wheel; 6. Collection box; 61. Box door; 71. Pusher plate; 72. Drive component; 721. Lead screw; 722. Guide rod; 723. Third motor; 8. Protective plate; 91. Connecting plate; 92. Fur layer; 10. Non-woven fabric. Detailed Implementation

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-4This embodiment provides a hot rolling apparatus for nonwoven fabric production, including a frame 1, two hot rolling rollers 2 rotatably connected to the frame 1, and several guide rollers 3. The heating components of the hot rolling apparatus heat the two hot rolling rollers 2 and use them to perform hot rolling on the nonwoven fabric 10. The guide rollers mainly correct and constrain the feed path of the nonwoven fabric 10, ensuring that the nonwoven fabric 10 does not touch certain components of the apparatus during hot rolling, thus preventing damage or wrinkles to the nonwoven fabric 10 due to deviation from its feed path, which could affect the quality of the nonwoven fabric 10 or the hot rolling process. The hot rolling apparatus also includes a first motor 4 that drives the hot rolling rollers 2 to rotate and a controller electrically connected to the first motor 4.

[0026] Two hot rolling rolls 2 are installed horizontally, specifically, their axes are on the same horizontal plane after installation. Each hot rolling roll 2 is equipped with a cleaning mechanism, which includes several drive rollers 51 rotatably connected to the frame 1. A conveyor belt 52 is fitted onto the drive rollers 51. A second motor 53 driving the conveyor belt 52 is installed on the frame 1, and the second motor 53 is electrically connected to a controller. It should be noted that during installation, the second motor 53 is directly linked to one of the drive rollers 51, and the controller controls the rotation of the second motor 53, thereby controlling the rotation of the drive roller 51 directly linked to the shaft end of the second motor 53. The cooperation of this drive roller 51 with the other drive rollers 51 and the conveyor belt 52 ensures the movement of the conveyor belt 52. Dense bristles 54 are fixed to the outside of the conveyor belt 52, and the bristles 54 abut against the hot rolling roll 2. A collection box 55 is set on the side of the conveyor belt 52 away from the hot rolling roll 2, and a comb plate 56 for separating the lint from the bristles 54 is installed on the collection box 55.

[0027] The following is a further explanation based on a specific application scenario. When the nonwoven fabric 10 is hot-rolled, the two hot rolling rollers 2 rotate under the drive of the first motor 4 to hot-roll the nonwoven fabric 10. At the same time, the transmission roller 51 and the conveyor belt 52 are driven by the second motor 53, which causes the dense bristles 54 on the conveyor belt 52 to clean the hot rolling rollers 2. Since the filaments on the nonwoven fabric 10 are long and thin, the bristles 54 will carry the filaments to the collection box 55 after cleaning. When the bristles 54 reach the comb plate 56, the filaments carried by the bristles 54 will separate from the bristles 54 under the action of the comb teeth. Since the filaments still have a certain mass, they will fall into the bottom of the collection box 55 under their own weight after separating from the bristles 54. As the hot rolling continues, the filaments in the collection box 55 will continue to accumulate.

[0028] Overall, through the cleaning mechanism, the transmission belt is driven by the second motor 53, and the brush 54 removes the nonwoven fabric 10 fibers adhering to the hot rolling roller 2. Then, with the operation of the conveyor belt 52, the brush 54, carrying the fibers, travels to the collection box 55, where the comb plate 56 separates the fibers from the brush 54 and they fall into the collection box 55. Because the fibers adhering to the hot rolling roller 2 are cleaned in time, it does not affect the subsequent hot rolling operation of the hot rolling roller 2, nor does it affect the quality of the nonwoven fabric 10, thus improving the hot rolling effect and the surface quality of the nonwoven fabric 10.

[0029] Furthermore, in current commercially available hot rolling equipment, the two hot rolling rollers 2 that work together are generally installed vertically. This installation method makes it difficult to clean the upper hot rolling roller 2, and the cleaning mechanism is inconvenient to install. Moreover, if the two hot rolling rollers 2 are distributed vertically, the lint adhering to the upper hot rolling roller 2 may fall back onto the nonwoven fabric 10 after being cleaned and transported to the collection box 55. In contrast, this invention installs the two hot rolling rollers 2 horizontally, so that the axes of the two hot rolling rollers 2 are on the same horizontal plane. In this way, the cleaning mechanism can be installed below the side of the hot rolling roller 2 away from the nonwoven fabric 10. With the entire cleaning mechanism located below the hot rolling roller 2, even if the lint falls off the brush 54 after cleaning, it will not fall onto the nonwoven fabric 10.

[0030] Referring to the figure, the rotation direction is the same as that of the drive roller 51 of the cleaning mechanism it is equipped with.

[0031] Based on the specific application scenario, the rotation direction of the hot rolling roller 2 and the rotation direction of the transmission roller 51 are set to be the same. In this way, the overall cyclic movement direction of the brush 54 is the same as the rotation direction of the hot rolling roller 2. Thus, at the position where the brush 54 abuts against the hot rolling roller 2, the movement direction of the brush 54 is opposite to the tangential movement direction of the hot rolling roller 2 at this position. The brush 54 moves against the hot rolling roller 2, which can make the cleaning effect of the lint on the hot rolling roller 2 better.

[0032] Reference Figures 1-4 As a specific embodiment of this application, the width of the conveyor belt 52 is greater than the width of the hot rolling roll 2. Two sets of guide wheels 57 are rotatably connected on both sides of the frame 1. Each set of guide wheels 57 has multiple wheels and is distributed in an arc shape. The center of the arc is concentric with the center of the cross-section of the hot rolling roll 2. The outer side of the conveyor belt 52 abuts against all the guide wheels 57.

[0033] Based on the specific application scenario, two sets of guide wheels 57 are rotatably connected to both sides of the frame 1, and there are multiple guide wheels 57 in each set, which are distributed in an arc shape and the center of the arc is concentric with the center of the cross section of the hot rolling roll 2. The outer side of the conveyor belt 52 abuts against the guide wheels 57. In this way, by using two sets of guide wheels 57, the running path of the part of the conveyor belt 52 and the brush 54 near the hot rolling roll 2 can be improved, so that more brushes 54 abut against the hot rolling roll 2, increasing the area of ​​the hot rolling roll 2 that is cleaned, and thus improving the cleaning effect on the hot rolling roll 2.

[0034] Reference Figures 1-3 As a specific embodiment of this application, it also includes a collection box 6, which is fixed to the same side of the two collection boxes 55 and communicates with the two collection boxes 55. A pusher plate 71 is slidably arranged inside the collection box 55. A drive structure is also installed on the collection box 55 to control the movement of the pusher plate 71 between the side of the collection box 55 away from the collection box 6 and the side of the collection box 55 close to the collection box 6.

[0035] Depending on the specific application scenario, after the hot rolling device has been used for a certain period of time, a large amount of non-woven fabric 10 filaments will accumulate in the collection box 55. At this time, by activating the drive structure, the pusher plate 71 is controlled to move from the side of the collection box 55 away from the collection box 6 to the side closer to the collection box 6. In this way, the non-woven fabric 10 filaments in the collection box 55 can be pushed into the collection box 6. This makes it convenient to centrally process the filaments in the two collection boxes 55. After the pusher plate 71 pushes the filaments in the collection box 55 into the collection box 6, the drive structure is used to control the pusher plate 71 to retract to the side of the collection box 55 away from the collection box 6.

[0036] Reference Figure 1 As one specific embodiment of this application, the collection box 6 is hinged to a box door 61 on its side.

[0037] Depending on the specific application scenario, after the hot rolling device has been used for a certain period of time, the filaments cleaned from the two collection boxes 55 will accumulate in the collection box 6. By opening the box door 61, the filaments in the collection box 6 can be processed to ensure the filament capacity of the collection box 6, so as to facilitate the centralized collection of filaments in the future.

[0038] Reference Figure 4 As a specific embodiment of this application, the driving component 72 includes a lead screw 721 rotatably connected in the collection box 55, the lead screw 721 being threadedly connected to the pusher plate 71, a smooth rod 722 fixedly connected in the collection box 55, the smooth rod 722 being slidably connected to the pusher plate 71, and a third motor 723 fixedly connected to the lead screw 721 mounted on the frame 1, the third motor 723 being electrically connected to the controller.

[0039] Depending on the specific application scenario, the third motor 723 controls the rotation of the lead screw 721, and the lead screw 721 and the pusher plate 71 are in a spiral engagement, and the guide rod 722 and the pusher plate 71 are in a sliding engagement, so that the pusher plate 71 can move horizontally in the collection box 55, thereby cleaning the lint in the collection box 55.

[0040] Furthermore, to make the unified handling of lint in the collection box 55 more convenient and intelligent, a distance sensor can be installed on the side of the pusher plate 71 away from the collection box 6. The distance sensor is electrically connected to the controller to collect the specific position of the pusher plate 71 in the collection box 55 and transmit it to the controller in a timely manner. When it is necessary to clean the lint in the collection box 55, the pusher plate 71 is moved by controlling the rotation of the third motor 723. When the pusher plate 71 moves to the side of the collection box 55 closer to the collection box 6, the distance sensor transmits this distance signal to the controller in a timely manner. The controller then controls the third motor 723 to reverse until the pusher plate 71 returns to the side of the collection box 55 away from the collection box 6. This makes the cleaning of lint in the collection box 55 more convenient, intelligent, and accurate.

[0041] Reference Figures 1-3 As a specific implementation of this application, it also includes a protective plate 8. One side of the protective plate 8 is fixed to the top of the pusher plate 71, and the other side penetrates through the side of the collection box 55 near the third motor 723. The length of the protective plate 8 is not less than the length of the collection box 55.

[0042] Based on specific usage scenarios, by setting up the protective plate 8, it can be ensured that there will be no accumulation of non-woven fabric lint between the side of the lint collection box 55 away from the collection box 6 and the pusher plate 71. This not only ensures the stability of lint cleaning but also improves the cleaning effect of lint.

[0043] Reference Figure 2 and Figure 3 As a specific embodiment of this application, the collection box 55 includes a box body 551, a material inlet is provided on the box body 551, an inlet frame 552 is fixedly connected to the material inlet, a comb plate 56 is fixedly connected to the inlet frame 552, and a part of the conveyor belt 52 is located in the inlet frame 552.

[0044] Depending on the specific application scenario, when the bristles 54 on the conveyor belt 52 carry lint into the feed frame 552, they are cleaned by the comb plate 56 inside the feed frame 552 and fall into the box 551 along the feed frame 552.

[0045] Reference Figures 2-4 As one specific implementation of this application, there are multiple comb plates 56.

[0046] Depending on the specific application scenario, using multiple comb plates 56 allows for a more thorough cleaning of the lint carried by the brush bristles 54 as they travel to the collection box 55, ensuring that as much of the lint as possible falls into the collection box 55. It also ensures that the brush bristles 54 leaving the collection box 55 are cleaned more thoroughly, improving the cleaning effect of the brush bristles 54 on the hot rolling roller 2 in subsequent operations. Furthermore, during installation, all the comb plates 56 are installed vertically, or the comb plates 56 are installed below the lowest point of the conveyor belt 52 and between the point where the brush bristles 54 leave the collection box 55. This ensures even better cleaning of the lint on the brush bristles 54 and facilitates easier lint falling into the collection box 55.

[0047] Reference Figures 1-3 As a specific embodiment of this application, the bristles 54 are made of rubber, the comb plate 56 is made of metal and the comb plate 56 is grounded through a wire, and a connecting plate 91 is installed on the frame 1. The specific position of the connecting plate 91 is set on the outer side of the section of the conveyor belt 52 that moves from the collection box 55 toward the hot rolling roller 2. A fur layer 92 is glued to the side of the connecting plate 91 near the conveyor belt 52, and the bristles 54 abut against the fur layer 92.

[0048] In specific application scenarios, on a section of conveyor belt 52 moving from the collection box 55 towards the hot roller 2, the rubber bristles 54 on this section of conveyor belt 52 generate static electricity upon contact with the bristle layer 92. This enhances the bristle adsorption of lint and ensures that the lint on the hot roller 2 is not washed away by the bristles 54. Since the comb plate 56 is made of metal and grounded via a wire, the static electricity on the bristles 54 is eliminated upon contact with the comb plate 56. The lint then falls off the bristles 54 and into the collection box 55 under the obstruction of the comb teeth. Overall, this improves the cleaning effect on the lint on the hot roller 2 and ensures that the lint on the bristles 54 does not easily fall outside the collection box 55 before entering it, guaranteeing efficient lint collection.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A hot rolling device for nonwoven fabric production, comprising a frame (1), two hot rolling rolls (2) rotatably connected to the frame (1) and a plurality of guide rolls (3), a first motor (4) for driving the hot rolling rolls (2) to rotate, and a controller electrically connected to the first motor (4), characterized in that, The axes of the two hot rolling rolls (2) are on the same horizontal plane; each hot rolling roll (2) is equipped with a cleaning mechanism, which includes several transmission rolls (51) rotatably connected to the frame (1), a conveyor belt (52) is sleeved on the transmission rolls (51), a second motor (53) is installed on the frame (1) to drive the conveyor belt (52), the second motor (53) is electrically connected to the controller, dense bristles (54) are fixed to the outside of the conveyor belt (52), the bristles (54) abut against the hot rolling roll (2), a collection box (55) is provided on the side of the conveyor belt (52) away from the hot rolling roll (2), and a comb plate (56) for separating the filaments from the bristles (54) is installed on the collection box (55); the bristles (54) are made of rubber, the comb plate (56) is made of metal and the comb plate (56) is grounded through a wire; The width of the conveyor belt (52) is greater than the width of the hot rolling roll (2). Two sets of guide wheels (57) are rotatably connected on both sides of the frame (1). Each set of guide wheels (57) has multiple wheels and is distributed in an arc shape. The center of the arc is concentric with the center of the cross section of the hot rolling roll (2). The outer side of the conveyor belt (52) abuts against all the guide wheels (57). It also includes a collection box (6), which is fixed to the same side of the two collection boxes (55) and communicates with the two collection boxes (55). A pusher plate (71) is slidably arranged inside the collection box (55). A drive component (72) is also installed on the side of the collection box (55) to control the movement of the pusher plate (71) between the side of the collection box (55) away from the collection box (6) and the side of the collection box (55) close to the collection box (6). The drive unit (72) includes a lead screw (721) rotatably connected in the collection box (55), and a third motor (723) fixedly connected to the lead screw (721) is mounted on the frame (1). It also includes a protective plate (8), one side of which is fixed to the top of the pusher plate (71), and the other side passes through the collection box (55) near the third motor (723). The length of the protective plate (8) is not less than the length of the collection box (55).

2. The hot rolling device for nonwoven fabric production according to claim 1, characterized in that, The rotation direction of the hot rolling roll (2) is the same as the rotation direction of the drive roll (51) of the cleaning mechanism.

3. The hot rolling device for nonwoven fabric production according to claim 1, characterized in that, The collection box (6) has a door (61) hinged to its side.

4. The hot rolling device for nonwoven fabric production according to claim 1, characterized in that, The lead screw (721) is threadedly connected to the pusher plate (71), and a smooth rod (722) is fixedly connected inside the collection box (55). The smooth rod (722) is slidably connected to the pusher plate (71), and the third motor (723) is electrically connected to the controller.

5. The hot rolling device for nonwoven fabric production according to claim 1, characterized in that, The collection box (55) includes a box body (551), the box body (551) has a material inlet, a feeding frame (552) is fixedly connected to the material inlet, the comb plate (56) is fixedly connected to the feeding frame (552), and a part of the conveyor belt (52) is located inside the feeding frame (552).

6. The hot rolling device for nonwoven fabric production according to claim 1, characterized in that, There are multiple comb plates (56).

7. The hot rolling device for nonwoven fabric production according to claim 1, characterized in that, A connecting plate (91) is installed on the frame (1). A fur layer (92) is bonded to the side of the connecting plate (91) near the conveyor belt (52). The bristles (54) abut against the fur layer (92).

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