Buffering mechanism of non-woven fabric needling machine

Abstract

The utility model discloses a non-woven fabric needling machine buffering mechanism which comprises a lifting plate, a needling assembly is installed at the bottom of the lifting plate, a connecting frame is arranged on the lifting plate through a connecting groove, a hydraulic cylinder is connected to the connecting frame, an upper jacking groove is formed in the connecting frame, a positioning block is arranged in the upper jacking groove through an upper jacking mechanism, and a positioning rod is arranged on the positioning block. A positioning hole is formed in the lifting plate, a transmission cavity and a plurality of rotating cavities are formed in the lifting plate, screw rods extending into the transmission cavity are rotationally arranged in the rotating cavities, a driving gear is rotationally arranged on the inner bottom wall of the transmission cavity, and the screw rods are connected with the driving gear through a transmission mechanism. Through the arrangement of the lifting plate, the movable plate, the sliding rod, the buffer block, the buffer spring, the driving motor, the driving gear, the transmission gear, the screw rod and the like, the scheme has the buffer function of the needling assembly, the pressure borne by the needling assembly is effectively reduced, and the service life of the needling assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of non-woven fabrics, in particular to a buffer mechanism of a non-woven fabric needle punching machine. Background Art

[0002] The needle punching machine is a device that compacts and needle punches non-woven fabrics of a certain thickness into non-woven fabrics. The fiber web is repeatedly punctured with a needle with a triangular or other shaped cross section and barbed hooks on the edges. The fiber web formed by cross-web or air-web is very fluffy when fed into the needle punching machine. It only generates a certain strength due to the cohesion between the fibers, but the strength is very poor. When multiple needles penetrate the fiber web, the barbed hooks on the needles will drive the fibers on the surface and sub-surface of the fiber web to move from the plane direction of the fiber web to the vertical direction of the fiber web, causing the fibers to shift up and down. The fibers that shift up and down will squeeze the fiber web to a certain extent, causing the fibers in the fiber web to be close together and compressed.

[0003] At present, the needling machines on the market need to use a buffer component to buffer the needling component during use, so as to ensure the service life of the needling component and reduce the frequency of maintenance and replacement. However, the common buffer component in the prior art has a simple structure and is not adjustable, and cannot be adjusted in time with the size of the non-woven fabric. In order to change the current situation, a buffer mechanism for a non-woven fabric needling machine is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a buffer mechanism for a nonwoven needle punching machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A buffer mechanism of a non-woven fabric needle-punching machine comprises a lifting plate, a needling assembly is installed at the bottom of the lifting plate, a connecting frame is provided on the lifting plate through a connecting groove, a hydraulic cylinder is connected to the connecting frame, an upper top groove is provided on the connecting frame, a positioning block is provided in the upper top groove through an upper top mechanism, a positioning hole is provided on the lifting plate, a transmission chamber and a plurality of rotating chambers are provided inside the lifting plate, a screw extending into the transmission chamber is rotatably provided in each of the plurality of rotating chambers, a driving gear is rotatably provided on the bottom wall of the transmission chamber, the screw is connected to the driving gear through a transmission mechanism, a power mechanism connected to the driving gear is provided on the lifting plate, a movable plate is provided with a threaded sleeve on the screw, a sliding rod is provided on the movable plate through a sliding sleeve of a buffer mechanism, and a buffer block is provided on the sliding rod.

[0007] Preferably, the lifting mechanism comprises a lifting spring arranged in the lifting groove, and two ends of the lifting spring are elastically connected to the outer wall of the positioning block and the inner bottom wall of the lifting groove respectively.

[0008] Preferably, the transmission mechanism comprises a transmission gear mounted on the end of the screw, and the driving gear is meshed with the transmission gear.

[0009] Preferably, the power mechanism comprises a driving motor disposed on the lifting plate, and an output shaft of the driving motor extends into the transmission cavity and is connected to the driving gear.

[0010] Preferably, the buffer mechanism comprises a buffer spring sleeved on the outside of the slide rod, the slide rod is T-shaped, and two ends of the buffer spring are elastically connected to the outer wall of the slide rod head and the outer wall of the movable plate respectively.

[0011] Preferably, the vertical cross-section of the connecting groove is L-shaped, and the vertical cross-section of the portion of the connecting frame located in the connecting groove is also L-shaped.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting components such as a lifting plate, a movable plate, a sliding rod, a buffer block, a buffer spring 7, a driving motor, a driving gear and a transmission gear, and a screw, this solution has a buffering effect on the acupuncture component, effectively reduces the pressure on the acupuncture component, and increases its service life.

[0014] 2. By setting the connection groove, connection frame, positioning block and positioning hole, the lifting plate and acupuncture assembly and other components can be easily disassembled and assembled relative to the hydraulic cylinder and other components, which improves the convenience of device inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a buffer mechanism of a non-woven fabric needle-loom machine proposed by the utility model;

[0016] Figure 2 for Figure 1 Structural schematic diagram of the middle connecting frame and other components;

[0017] Figure 3 It is a structural schematic diagram of the positioning block on the connecting frame;

[0018] Figure 4 for Figure 1 Schematic diagram of the structure of the screw and other components.

[0019] In the figure: 1 lifting plate, 2 acupuncture assembly, 3 connecting groove, 4 opening, 5 movable plate, 6 slide bar, 7 buffer spring, 8 buffer block, 9 connecting frame, 10 hydraulic cylinder, 11 positioning hole, 12 driving motor, 13 top groove, 14 positioning block, 15 transmission cavity, 16 rotating cavity, 17 screw, 18 driving gear, 19 transmission gear. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 of the embodiments.

[0021] Reference Figure 1-4 A buffer mechanism of a non-woven fabric needle punching machine comprises a lifting plate 1, a needle punching assembly 2 is installed at the bottom of the lifting plate 1, a connecting frame 9 is provided on the lifting plate 1 through a connecting groove 3, a hydraulic cylinder 10 is connected to the connecting frame 9, an upper top groove 13 is provided on the connecting frame 9, a positioning block 14 is provided in the upper top groove 13 through an upper top mechanism, a positioning hole 11 is provided on the lifting plate 1, a transmission cavity 15 and a plurality of rotating cavities 16 are provided inside the lifting plate 1, a screw 17 extending into the transmission cavity 15 is rotatably provided in the plurality of rotating cavities 16, and a transmission cavity 13 is provided with a plurality of rotating cavities 16. A driving gear 18 is rotatably provided on the inner bottom wall of the lifting plate 1, and the screw 17 is connected to the driving gear 18 through a transmission mechanism. A power mechanism connected to the driving gear 18 is provided on the lifting plate 1, and a movable plate 5 is threadedly sleeved on the screw 17. The movable plate 5 is L-shaped in a vertical cross-sectional view, and an opening 4 corresponding to the movable plate 5 is provided on the outer side wall of the lifting plate 1. The movable plate 5 is in the opening 4, and the four outer walls of the movable plate 5 are in sliding contact with the four inner walls of the opening 4. Therefore, the movable plate 5 has its own limit and will not rotate with the screw 17.

[0022] A slide rod 6 is provided on the movable plate 5 through a buffer mechanism sliding sleeve, and a buffer block 8 is provided on the slide rod 6.

[0023] The upper pushing mechanism includes an upper pushing spring arranged in the upper pushing groove 13, and the two ends of the upper pushing spring are elastically connected to the outer wall of the positioning block 14 and the inner bottom wall of the upper pushing groove 13 respectively. Referring to the figure, the upper pushing spring realizes the upper pushing and squeezing operation of the positioning block 14, and can push it out of the upper pushing groove 13 and make it enter the positioning hole 11, thereby completing the fixed installation of the connecting frame 9 in the connecting groove 3.

[0024] The transmission mechanism includes a transmission gear 19 installed on the end of the screw 17, and the driving gear 18 is meshed with the transmission gear 19. As shown in the figure, the driving gear 18 and the transmission gear 19 are both bevel gears, which mesh with each other to achieve power transmission.

[0025] The power mechanism includes a drive motor 12 arranged on the lifting plate 1. The output shaft of the drive motor 12 extends into the transmission cavity 15 and is connected to the driving gear 18. The drive motor 12 is a power device and is arranged outside the lifting plate 1 instead of in the transmission cavity 15 in order to achieve better heat dissipation and easier maintenance.

[0026] The buffer mechanism includes a buffer spring 7 which is sleeved on the outside of the slide rod 6. The slide rod 6 is T-shaped. The two ends of the buffer spring 7 are elastically connected to the outer wall of the slide rod 6 head and the outer wall of the movable plate 5 respectively. The buffer spring 7 realizes the downward pressure contact buffering of the slide rod 6 and the buffer block 8, and makes the buffer block 8 separate from the non-woven fabric after the needle punching component 2.

[0027] The vertical cross-section of the connecting groove 3 is L-shaped, and the vertical cross-section of the connecting frame 9 in the connecting groove 3 is also L-shaped. The above-mentioned shape structure has a certain limit to ensure that the connecting frame 9 can only be moved horizontally relative to the connecting groove 3 to complete disassembly and assembly.

[0028] When the utility model is used, as shown in the figure, the components are installed at appropriate positions in the needling machine, and the hydraulic cylinder 10 can drive the lifting plate 1 to rise and fall, thereby realizing the lifting operation of the needling component 2. When the needling component 2 does not contact the non-woven fabric, the buffer block 8 is in contact with the non-woven fabric. During the subsequent descent of the needling component 2, the buffer spring 7 can provide buffering, thereby reducing the pressure on the needling component 2 to a certain extent, thereby extending the service life of the needling component 2.

[0029] When the hydraulic cylinder 10 drives the lifting plate 1 and other components to rise, the buffer block 8 will be separated from the non-woven fabric after the needling component 2 due to the restoring effect of the buffer spring 7, which has the function of restricting the non-woven fabric and preventing the non-woven fabric from being shaken by the needling component 2 and thus displaced.

[0030] In the present embodiment, pressing the positioning block 14 in the positioning hole 11 can compress the upper spring, and then the positioning block 14 is disengaged from the positioning hole 11, and the fixed installation of the connecting frame 9 in the connecting groove 3 is released, so that the lifting plate 1 and the acupuncture assembly 2 and other components can be easily disassembled, so that they can be easily removed from the acupuncture machine.

[0031] In this solution, when the area of ​​the non-woven fabric is large and the processing area remains unchanged, in order to ensure the stability of the non-woven fabric during processing, it is necessary to adjust the effective limiting area composed of multiple buffer blocks 8. At this time, the driving motor 12 is started to drive the active gear 18 to rotate, and the active gear 18 drives the screw 17 to rotate with the help of the transmission gear 19. When the screw 17 rotates, the movable plate 5 threadedly mounted thereon can drive the slide rod 6 and components such as the buffer block 8 to move and adjust, thereby realizing the expansion operation of the effective limiting area.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A buffer mechanism for a nonwoven fabric needle loom, comprising a lifting plate (1), characterized in that: The bottom of the lifting plate (1) is provided with a needling assembly (2); the lifting plate (1) is provided with a connecting frame (9) via a connecting groove (3); the connecting frame (9) is connected to a hydraulic cylinder (10); the connecting frame (9) is provided with an upper groove (13); a positioning block (14) is provided in the upper groove (13) via an upper mechanism; a positioning hole (11) is provided on the lifting plate (1); a transmission cavity (15) and a plurality of rotating cavities (16) are provided inside the lifting plate (1); the plurality of rotating cavities (16) are provided inside the plurality of rotating cavities (11); A screw rod (17) is rotatably provided in the inner bottom wall of the transmission cavity (15), and a driving gear (18) is rotatably provided in the inner bottom wall of the transmission cavity (15). The screw rod (17) is connected to the driving gear (18) through a transmission mechanism. A power mechanism connected to the driving gear (18) is provided on the lifting plate (1). A movable plate (5) is threadedly sleeved on the screw rod (17). A sliding rod (6) is slidably sleeved on the movable plate (5) through a buffer mechanism, and a buffer block (8) is provided on the sliding rod (6).

2. The buffer mechanism of a nonwoven fabric needle loom according to claim 1, characterized in that: The lifting mechanism comprises a lifting spring arranged in the lifting groove (13), and two ends of the lifting spring are elastically connected to the outer wall of the positioning block (14) and the inner bottom wall of the lifting groove (13) respectively.

3. The buffer mechanism of a nonwoven needle loom according to claim 2, characterized in that: The transmission mechanism comprises a transmission gear (19) mounted on the end of the screw rod (17), and the driving gear (18) meshes with the transmission gear (19).

4. The buffer mechanism of a nonwoven fabric needle loom according to claim 3, characterized in that: The power mechanism comprises a drive motor (12) arranged on the lifting plate (1), wherein an output shaft of the drive motor (12) extends into a transmission cavity (15) and is connected to a driving gear (18).

5. The buffer mechanism of a nonwoven fabric needle loom according to claim 4, characterized in that: The buffer mechanism comprises a buffer spring (7) sleeved on the outside of the slide rod (6); the slide rod (6) is T-shaped; two ends of the buffer spring (7) are elastically connected to the outer wall of the slide rod (6) head and the outer wall of the movable plate (5), respectively.

6. The buffer mechanism of a nonwoven fabric needle loom according to claim 5, characterized in that: The vertical cross-section of the connecting groove (3) is L-shaped, and the vertical cross-section of the portion of the connecting frame (9) located in the connecting groove (3) is also L-shaped.

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