Device for preparing needle-punched non-woven fabric

Abstract

The device comprises a bottom plate, a fixing frame of a U-shaped structure is fixedly connected to the middle of the upper surface of the bottom plate, a control switch set is fixedly connected to the front surface of the fixing frame, and a variable frequency motor is fixedly connected to the left side of the middle of the upper surface of the fixing frame. An eccentric rotating wheel is fixedly connected to the end of an output shaft of the variable frequency motor, a transmission rod is rotationally connected to an output shaft of the eccentric rotating wheel, a needling plate is hinged to the lower end of the transmission rod, needling holes corresponding to the needling plate are formed in the upper surface of the bottom plate, and supporting rods are fixedly connected to the four corners of the upper surface of the bottom plate correspondingly; according to the device, the cotton feeding and discharging speed can be adjusted, the cotton feeding and discharging speed is kept stable, the situation that needling intervals are not consistent is avoided, meanwhile, the needling frequency is convenient to adjust, and needling non-woven fabrics of different specifications can be produced.

Description

Technical Field

[0001] This utility model relates to the technical field of nonwoven fabric processing equipment, specifically to a device for preparing needle-punched nonwoven fabric. Background Technology

[0002] Needle-punched nonwoven fabric is a type of dry-laid nonwoven fabric. It is made by opening, combing, and laying short fibers into a fiber web, and then reinforcing the fiber web into a fabric with needles. The needles have hooks and barbs that repeatedly puncture the fiber web, hooking and reinforcing the fibers to form needle-punched nonwoven fabric. Needle-punched nonwoven fabric does not have a distinction between warp and weft, and the finished fabric has random fibers with little difference in warp and weft properties.

[0003] However, the needle punching machines currently on the market have many problems, such as inconsistent cotton feeding and output speeds, resulting in inconsistent needle punching intervals and an inability to adjust the needle punching frequency, which prevents the equipment from producing needle punched nonwoven fabrics of different specifications. To address this, we propose a device for preparing needle punched nonwoven fabrics. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an apparatus for preparing needle-punched nonwoven fabric. This apparatus can adjust the speed of cotton feeding and output to keep the cotton feeding and output speed stable and avoid inconsistent needle-punching intervals. At the same time, the needle-punching frequency can be easily adjusted, and it can produce needle-punched nonwoven fabrics of different specifications, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an apparatus for preparing needle-punched nonwoven fabric, comprising a base plate, a U-shaped fixing frame fixedly connected to the middle of the upper surface of the base plate, a control switch assembly fixedly connected to the front surface of the fixing frame, a variable frequency motor fixedly connected to the left side of the middle of the upper surface of the fixing frame, an eccentric wheel fixedly connected to the end of the output shaft of the variable frequency motor, a transmission rod rotatably connected to the output shaft of the eccentric wheel, a needle-punching plate hinged to the lower end of the transmission rod, needle-punching holes corresponding to the needle-punching plates being opened on the upper surface of the base plate, support rods fixedly connected to the four corners of the upper surface of the base plate, and the upper ends of the support rods being slidably connected to the shaft ends of the external material tray. The chute has a support plate fixedly connected to the middle of the front surface of the support rod at the left front end, and a rotating shaft rotatably connected to the top. The inner surface of the rotating shaft has a slot that corresponds to the shaft end of the external material tray. A stepper motor is fixedly connected to the upper surface of the support plate, and the output shaft of the stepper motor is connected to the input shaft of the rotating shaft via a belt. Connecting plates are fixedly connected to the front and rear ends of the upper right side of the base plate, and auxiliary rollers are rotatably connected to the lower left and right sides of the two connecting plates, and a transmission roller is rotatably connected to the upper end. An encoder is fixedly connected to the upper end of the front surface of the connecting plate at the front end, and the shaft of the encoder is fixedly connected to the shaft of the transmission roller. A non-powered roller is set on the lower left side of the fixed frame.

[0006] Wherein: the input terminal of the control switch group is electrically connected to the output terminal of the external power supply, and the output terminal of the control switch group is electrically connected to the input terminals of the frequency converter motor and the stepper motor respectively. The control switch group is bidirectionally electrically connected to the encoder.

[0007] Furthermore, it also includes foot cups, which are height-adjustable structures. There are four foot cups in total, which are fixedly connected to the four corners of the lower surface of the base plate. The foot cups can better adjust the overall height of the equipment and make the equipment adaptable to environments with poor flatness, thereby effectively improving the practicality of the equipment.

[0008] Furthermore, it also includes an optical axis. The upper surface of the fixed frame has sliding holes at both the front and rear ends, and the optical axis is slidably connected inside the sliding holes. The lower end of the optical axis is fixedly connected to the upper surface of the needle plate. The optical axis can limit the position of the needle plate and prevent the needle plate from shifting at an angle when it is raised or lowered, thereby making the use of the equipment more stable and safe.

[0009] Furthermore, it also includes a protective cover, which is fixedly connected to the middle of the upper surface of the fixed frame and covers the eccentric wheel and the optical axis; the protective cover can effectively prevent mechanical injury accidents, thereby improving the safety of the equipment during use.

[0010] Furthermore, the outer surface of the transmission roller is provided with anti-slip grooves in a linear array, and the auxiliary roller is a rubber-coated roller. The anti-slip grooves on the surface of the transmission roller can prevent sliding friction between the transmission roller and the non-woven fabric, thereby affecting the speed control of the equipment. At the same time, the rubber-coated auxiliary roller can prevent scratches on the surface of the non-woven fabric, thus making the use of the equipment more convenient and safer.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This apparatus for preparing needle-punched nonwoven fabric has the following advantages:

[0012] 1. This equipment can adjust the speed of cotton feeding and output to keep the speed stable and avoid inconsistent needle punching intervals. At the same time, the needle punching frequency is easy to adjust, and it can produce needle punched nonwoven fabrics of different specifications.

[0013] 2. The adjustable feet allow for better adjustment of the overall height of the equipment, and also enable the equipment to adapt to environments with poor flatness, thereby effectively improving the practicality of the equipment.

[0014] 3. The optical axis can limit the position of the needle plate, preventing the needle plate from shifting at an angle when it is raised or lowered. At the same time, the protective cover can effectively prevent mechanical injury accidents, thereby improving the safety of the equipment during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the right-side cross-sectional structure of this utility model.

[0017] In the diagram: 1. Base plate, 2. Foot cup, 3. Fixing frame, 4. Support rod, 5. Connecting plate, 6. Auxiliary roller, 7. Transmission roller, 8. Encoder, 9. Control switch group, 10. Variable frequency motor, 11. Eccentric wheel, 12. Transmission rod, 13. Needle plate, 14. Optical axis, 15. Protective cover, 16. Support plate, 17. Stepper motor, 18. Belt, 19. Rotary shaft. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-2 This embodiment provides a technical solution: an apparatus for preparing needle-punched nonwoven fabric, including a base plate 1, a U-shaped fixing frame 3 fixedly connected to the middle of the upper surface of the base plate 1, a control switch group 9 fixedly connected to the front surface of the fixing frame 3, and a variable frequency motor 10 fixedly connected to the left side of the middle of the upper surface of the fixing frame 3. An eccentric wheel 11 is fixedly connected to the end of the output shaft of the variable frequency motor 10, and a transmission rod 12 is rotatably connected to the output shaft of the eccentric wheel 11. A needle-punching plate 13 is hinged to the lower end of the transmission rod 12, and needle-punching holes corresponding to the needle-punching plate 13 are opened on the upper surface of the base plate 1. Support rods 4 are fixedly connected to the four corners of the upper surface of the base plate 1, and the upper end of the support rods 4 is provided with a sliding groove corresponding to the shaft end of the external material tray. A support plate 16 is fixedly connected to the middle of the front surface of the support rod 4 at the left front end, and a rotating shaft 19 is rotatably connected to the top. The inner surface of the rotating shaft 19 is provided with a slot that corresponds to the shaft end of the external material tray. A stepper motor 17 is fixedly connected to the upper surface of the support plate 16, and the output shaft of the stepper motor 17 is connected to the input shaft of the rotating shaft 19 via a belt 18. Connecting plates 5 are fixedly connected to the front and rear ends of the upper right side of the base plate 1, and auxiliary rollers 6 are rotatably connected to the lower left and right sides of the two connecting plates 5, and a transmission roller 7 is rotatably connected to the upper end. An encoder 8 is fixedly connected to the upper end of the front surface of the connecting plate 5 at the front end, and the shaft of the encoder 8 is fixedly connected to the shaft of the transmission roller 7. A non-powered roller is provided on the lower left side of the fixing frame 3.

[0020] Among them: the input terminal of the control switch group 9 is electrically connected to the output terminal of the external power supply, and the output terminal of the control switch group 9 is electrically connected to the input terminals of the frequency converter motor 10 and the stepper motor 17 respectively. The control switch group 9 is bidirectionally electrically connected to the encoder 8.

[0021] In this embodiment, the device also includes foot cups 2, which are height-adjustable structures. There are four foot cups 2 in total, and the four foot cups 2 are fixedly connected to the four corners of the lower surface of the base plate 1. The foot cups 2 can better adjust the overall height of the device and make the device adaptable to environments with poor flatness, thereby effectively improving the practicality of the device.

[0022] In this embodiment, an optical axis 14 is also included. Sliding holes are provided at the front and rear ends of the upper surface of the fixing frame 3, and the optical axis 14 is slidably connected inside the sliding holes. The lower end of the optical axis 14 is fixedly connected to the upper surface of the needle plate 13. The optical axis 14 can limit the position of the needle plate 13, so as to avoid the angular deviation of the needle plate 13 when it is raised and lowered, thereby making the use of the equipment more stable and safe.

[0023] In this embodiment, a protective cover 15 is also included. The protective cover 15 is fixedly connected to the middle of the upper surface of the fixed frame 3, and the protective cover 15 covers the eccentric rotating wheel 11 and the optical axis 14. The protective cover 15 can effectively prevent mechanical injury accidents, thereby improving the safety of the equipment during use.

[0024] In this embodiment, the outer surface of the transmission roller 7 is provided with anti-slip grooves in a linear array, and the auxiliary roller 6 is a rubber-coated roller. The anti-slip grooves on the surface of the transmission roller 7 can prevent sliding friction between the transmission roller 7 and the non-woven fabric, thereby affecting the speed control of the equipment. At the same time, the rubber-coated auxiliary roller 6 can prevent scratches on the surface of the non-woven fabric, thereby making the use of the equipment more convenient and safe.

[0025] The working principle of the device for preparing needle-punched nonwoven fabric provided by this utility model is as follows: The roll of nonwoven fabric to be needle-punched is placed on the upper end of the support rod 4 on the right side, and the take-up roller is placed on the upper end of the support rod 4 on the left side. The front end of the take-up roller is connected to the rotating shaft 19. Then, the nonwoven fabric is passed sequentially through the lower end of the auxiliary roller 6 on the right side, the upper end of the transmission roller 7, and the lower end of the auxiliary roller 6 on the left side. The nonwoven fabric is then passed under the needle-punching plate 13, and then under the non-powered roller. Finally, the nonwoven fabric is wound around the take-up roller on the left side. The rotation of stepper motor 17 drives the rotating shaft 19 to rotate, which in turn drives the take-up roller to rotate, thereby causing the take-up roller to take up the nonwoven fabric. When the nonwoven fabric moves, it drives the transmission roller 7 to rotate, and the rotation of the transmission roller 7 drives the encoder 8 to rotate. The rotation of the encoder 8 calculates the moving speed of the nonwoven fabric, and then controls the rotation speed of the frequency converter motor 10. The rotation of the frequency converter motor 10 drives the needle punch plate 13 to move up and down reciprocally through the eccentric rotating wheel 11 and the transmission rod 12, thereby enabling the needle punch plate 13 to achieve the effect of needle punching the nonwoven fabric.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An apparatus for preparing needle-punched nonwoven fabric, characterized in that: The base plate (1) is fixedly connected to a U-shaped frame (3) at the center of its upper surface. A control switch assembly (9) is fixedly connected to the front surface of the frame (3). A variable frequency motor (10) is fixedly connected to the left side of the center of the upper surface of the frame (3). An eccentric wheel (11) is fixedly connected to the end of the output shaft of the variable frequency motor (10). A transmission rod (12) is rotatably connected to the output shaft of the eccentric wheel (11). A needle-punching plate (13) is hinged to the lower end of the transmission rod (12). A needle-punching hole corresponding to the needle-punching plate (13) is opened on the upper surface of the base plate (1). Support rods (4) are fixedly connected to the four corners of the upper surface of the base plate (1). A sliding groove corresponding to the shaft end of the external material tray is opened at the upper end of the support rod (4). The front surface of the support rod (4) located at the left front end A support plate (16) is fixedly connected in the middle and a rotating shaft (19) is rotatably connected at the top. The inner surface of the rotating shaft (19) is provided with a slot that corresponds to the shaft end of the external material tray. A stepper motor (17) is fixedly connected to the upper surface of the support plate (16), and the output shaft of the stepper motor (17) is connected to the input shaft of the rotating shaft (19) via a belt (18). A connecting plate (5) is fixedly connected to the front and rear ends of the upper right side of the bottom plate (1). An auxiliary roller (6) is rotatably connected to the lower left and right sides of the two connecting plates (5), and a transmission roller (7) is rotatably connected to the upper end. An encoder (8) is fixedly connected to the upper end of the front surface of the connecting plate (5) at the front end, and the shaft of the encoder (8) is fixedly connected to the shaft of the transmission roller (7). A non-powered roller is provided on the lower left side of the fixed frame (3). Wherein: the input end of the control switch group (9) is electrically connected to the output end of the external power supply, and the output end of the control switch group (9) is electrically connected to the input ends of the variable frequency motor (10) and the stepper motor (17) respectively, and the control switch group (9) is bidirectionally electrically connected to the encoder (8).

2. The apparatus for preparing needle-punched nonwoven fabric according to claim 1, characterized in that: It also includes foot cups (2), which are height-adjustable structures. There are four foot cups (2), which are fixedly connected to the four corners of the lower surface of the base plate (1).

3. The apparatus for preparing needle-punched nonwoven fabric according to claim 1, characterized in that: It also includes an optical axis (14). The upper surface of the fixing frame (3) is provided with sliding holes at the front and rear ends, and the optical axis (14) is slidably connected inside the sliding holes. The lower end of the optical axis (14) is fixedly connected to the upper surface of the needle plate (13).

4. The apparatus for preparing needle-punched nonwoven fabric according to claim 3, characterized in that: It also includes a protective cover (15), which is fixedly connected to the middle of the upper surface of the fixing frame (3) and covers the eccentric wheel (11) and the optical axis (14).

5. The apparatus for preparing needle-punched nonwoven fabric according to claim 1, characterized in that: The outer surface of the transmission roller (7) is provided with anti-slip grooves in a linear array, and the auxiliary roller (6) is a rubber-coated roller.

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