Double-sided needling machine for producing papermaking felt

Abstract

The utility model discloses a double-sided needling machine for producing papermaking felt, which belongs to the technical field of papermaking felt production, and is characterized by comprising a double-sided needling machine body, support rods are arranged on two sides of the front side of the double-sided needling machine body, and a support mechanism is arranged between the front sides of the two support rods. A suction mechanism is arranged on the front side of the supporting mechanism; the suction mechanism comprises an upper suction box, a lower suction box, a plurality of rollers and an elastic three-way pipe, and the top roller is rotationally connected to the bottom of the upper suction box. The problems that when a paper making felt moves, part of fibers are broken and fall off to form dust which is inconvenient to suck and remove, the fiber dust is easily diffused in a workshop, pollutes the working environment and harms the health of workers along with the movement of the paper making felt, and equipment failures are possibly caused by the accumulation of the fiber dust are solved.

Description

Technical Field

[0001] This utility model relates to the field of papermaking blanket production technology, and in particular to a double-sided needle punching machine for producing papermaking blankets. Background Technology

[0002] Papermaking felt is an indispensable piece of equipment in the papermaking industry, playing a crucial role in dehydration, transfer, and support during paper production. The double-sided needle punching machine is a key piece of equipment specifically used to produce papermaking felt. The double-sided needle punching machine has upper and lower needle punching mechanisms. Through the high-speed reciprocating needles, the fiber web is repeatedly punctured. The upper and lower needles work simultaneously, causing the fibers to entangle and interweave, increasing the density and strength of the fiber web, and forming a prototype of papermaking felt with a certain thickness and mechanical properties.

[0003] Traditional needle punching machines may break needles during fabric processing due to process and material factors. They also lack protective structures, which seriously affects the safety of workers. Because the needle density is concentrated, it can easily cause the blanket to move upwards, affecting the needle punching effect.

[0004] The existing patent (publication number: CN212669979U) discloses a new type of needle-punching machine for papermaking blankets that prevents needle breakage. This utility model is easy to operate, improves the efficiency of needle-punching operations, effectively prevents needle breakage, and protects workers.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, some existing double-sided needle punching machines used for producing papermaking felts lack a dust removal structure. During the needle punching process of papermaking felts, the repeated piercing of fibers by the needles causes some fibers to break and fall off, forming dust that is difficult to remove. As the papermaking felts move, the fiber dust can easily spread throughout the workshop, polluting the working environment, endangering workers' health, and potentially causing equipment malfunctions due to the accumulation of fiber dust.

[0006] To address this, a double-sided needle punching machine for producing papermaking blankets is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a double-sided needle punching machine for producing papermaking blankets, which can solve the problem that some existing double-sided needle punching machines for producing papermaking blankets do not have a dust removal structure. During the needle punching process of papermaking blankets, the repeated piercing of fibers by the needles will cause some fibers to break and fall off, forming dust that is inconvenient to remove. As the papermaking blankets move, the fiber dust can easily spread in the workshop, polluting the working environment, endangering the health of workers, and may also cause equipment failure due to the accumulation of fiber dust.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a double-sided needle punching machine for producing papermaking blankets, comprising a double-sided needle punching machine body, wherein support rods are provided on both sides of the front side of the double-sided needle punching machine body, a support mechanism is provided between the front sides of the two support rods, and a suction mechanism is provided on the front side of the support mechanism.

[0009] The suction mechanism includes an upper suction box, a lower suction box, several rollers, and a flexible three-way tube. The top roller is rotatably connected to the bottom of the upper suction box, and the bottom roller is rotatably connected to the top of the lower suction box. The upper and lower suction boxes are fixedly connected to the flexible three-way tube on the side closest to it.

[0010] Preferably, the support mechanism includes several screws, two retaining rings, and a rotating roller. The rotating roller is rotatably connected inside the retaining rings. The rear side of the retaining rings contacts the front side of the support rod. The rear side of the screws passes through the retaining rings and is threadedly connected to the inside of the support rod.

[0011] Preferably, a support plate is fixedly connected to the bottom of the support rod, and the rear side of the support plate is fixedly connected to the front side of the double-sided needle punching machine body.

[0012] Preferably, a support plate is fixedly connected to both the front and rear sides of the top of the support plate, and the side of the support plate closest to the support rod is fixedly connected to the support rod.

[0013] Preferably, the inner walls of both the upper and lower suction boxes are fixedly connected to a fixing plate, and the fixing plate has suction holes inside.

[0014] Preferably, the number of suction holes is several and they are staggered inside the fixed plate.

[0015] Preferably, a support block is fixedly connected to both sides of the bottom of the lower suction box, a support block is fixedly connected to the bottom of the support block, and the rear side of the support block is fixedly connected to the front side of the support rod.

[0016] Preferably, a fixing block is fixedly connected to both the front and rear sides of the upper suction box, a sliding rod is fixedly connected to the bottom of the fixing block, a sliding hole is opened inside the support block, and the sliding rod is slidably connected inside the sliding hole.

[0017] Preferably, a spring is movably sleeved on the surface of the slide rod, and the top of the spring contacts the bottom of the support block.

[0018] Preferably, the top of the upper suction box is fixedly connected with three pull rings, which are evenly distributed on the top of the upper suction box.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This application sets up a suction mechanism so that after the flexible three-way pipe is connected to the external dust collection equipment, the fiber dust generated after the papermaking blanket is needled can be sucked out through the dust collection hole, so as to avoid polluting the working environment, affecting the health of workers and the normal operation of the double-sided needle punching machine.

[0021] 2. This application sets up a support mechanism so that the roller can rotate, which facilitates the rotation support and guidance of the papermaking felt, and facilitates its subsequent dust collection. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of the double-sided needle punching machine for producing papermaking blankets according to this utility model;

[0023] Figure 2 This is a three-dimensional connection diagram of the support rod and the support plate in this utility model;

[0024] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 4 This is a three-dimensional connection diagram of the fixing block and the sliding rod in this utility model;

[0026] Figure 5 This is a three-dimensional exploded view of the transfer roller and retaining ring of this utility model;

[0027] Figure 6 This is a three-dimensional connection diagram of the lower suction box and the fixing plate in this utility model.

[0028] In the diagram, 1. Double-sided needle punching machine body; 2. Suction mechanism; 201. Upper suction box; 202. Lower suction box; 203. Roller; 204. Elastic tee tube; 3. Support rod; 4. Support plate; 5. Support mechanism; 501. Screw; 502. Snap ring; 503. Rotary roller; 6. Pull ring; 7. Fixing block; 8. Slide rod; 9. Spring; 10. Fixing plate; 11. Suction hole; 12. Support block; 13. Support block; 14. Slide hole; 15. Support plate. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-6 The present invention provides the following technical solution:

[0031] A double-sided needle punching machine for producing papermaking blankets includes a double-sided needle punching machine body 1, with support rods 3 on both sides of the front side of the double-sided needle punching machine body 1, a support mechanism 5 between the front sides of the two support rods 3, and a suction mechanism 2 on the front side of the support mechanism 5.

[0032] The suction mechanism 2 includes an upper suction box 201, a lower suction box 202, several rollers 203, and an elastic three-way tube 204. The top rollers 203 are rotatably connected to the bottom of the upper suction box 201, and the bottom rollers 203 are rotatably connected to the top of the lower suction box 202. The upper suction box 201 and the lower suction box 202 are fixedly connected to the elastic three-way tube 204 on the side near the elastic three-way tube 204.

[0033] In this embodiment: the support plate 15 is fixed to the front side of the double-sided needle punching machine body 1, and the support rod 3 is connected to it by the support plate 4 to form a stable support structure. The retaining ring 502 is connected to the support rod 3 by the screw 501. The internal rotating roller 503 is responsible for supporting and guiding the papermaking blanket. During the operation of the needle punching machine, the upper suction box 201 and the lower suction box 202 are connected to the external dust collection equipment through the elastic three-way pipe 204. When the external dust collection equipment is started, it generates negative pressure, which is transmitted through the elastic three-way pipe 204 to form a negative pressure environment in the upper and lower suction boxes 202. At this time, the fiber dust on the surface of the papermaking blanket is sucked in through the suction holes 11 distributed on the fixed plate 10 on the inner wall of the suction box under the action of negative pressure, and then sucked away by the dust collection equipment to prevent the dust from spreading in the workshop. When placing the blanket, pull the pull ring 6 upwards to slide it. The rod 8 moves upward within the sliding hole 14, compressing the spring 9 and pulling up the upper suction box 201, making it easier for the papermaking blanket to pass between the upper suction box 201 and the lower suction box 202. After releasing the pull ring 6, the spring 9 rebounds to assist the upper suction box 201 in pressing down, allowing the roller 203 to make close contact with the blanket, ensuring smooth movement of the papermaking blanket and preventing the upper suction box 201 and the lower suction box 202 from scratching the papermaking blanket. This solves the problem that some existing double-sided needle punching machines for producing papermaking blankets do not have a dust removal structure. During the needle punching process of papermaking blankets, the repeated piercing of fibers by the needles causes some fibers to break and fall off, forming dust that is inconvenient to remove. As the papermaking blanket moves, fiber dust can easily spread in the workshop, polluting the working environment, endangering the health of workers, and potentially causing equipment failure due to the accumulation of fiber dust.

[0034] Specifically, such as Figure 5 As shown, the support mechanism 5 includes several screws 501, two retaining rings 502, and a rotating roller 503. The rotating roller 503 is rotatably connected inside the retaining rings 502. The rear side of the retaining rings 502 contacts the front side of the support rod 3. The rear side of the screws 501 passes through the retaining rings 502 and is threadedly connected to the inside of the support rod 3.

[0035] Specifically, such as Figure 1 and Figure 2As shown, a support plate 15 is fixedly connected to the bottom of the support rod 3, and the rear side of the support plate 15 is fixedly connected to the front side of the double-sided needle punching machine body 1.

[0036] Specifically, such as Figure 2 As shown, support plates 4 are fixedly connected to the front and rear sides of the top of the support plate 15, and the side of the support plate 4 closest to the support rod 3 is fixedly connected to the support rod 3.

[0037] In this embodiment: by clamping the retaining ring 502 onto the surface of the rotating roller 503, and by passing the rear side of the screw 501 through the retaining ring 502 and connecting it to the internal thread of the support rod 3, the rotating roller 503 can be rotatably connected to the inside of the retaining ring 502, which facilitates the rotational support and guidance of the papermaking felt. The support plate 15 is fixedly connected to the support plate 15, and the rear side of the support plate 15 is fixedly connected to the front side of the double-sided needle punching machine body 1, so that the support plate 15 can support the support rod 3. The support plate 4 supports the support plate 15, which makes the support rod 3 more stable.

[0038] Specifically, such as Figure 6 As shown, the inner walls of the upper suction box 201 and the lower suction box 202 are both fixedly connected to a fixing plate 10, and the fixing plate 10 has a suction hole 11 inside.

[0039] Specifically, such as Figure 6 As shown, there are several suction holes 11, which are staggered inside the fixed plate 10.

[0040] In this embodiment: by fixing the external vacuum cleaner to the flexible three-way pipe 204, the external vacuum cleaner is controlled to generate negative pressure, which is transmitted to the upper suction box 201 and the lower suction box 202 through the flexible three-way pipe 204, so that a negative pressure environment is formed inside the upper suction box 201 and the lower suction box 202. At this time, the fiber dust generated on the surface of the papermaking blanket is sucked into the box through the suction holes 11 distributed alternately on the inner wall fixing plate 10 of the upper suction box 201 and the lower suction box 202 under the action of negative pressure, and then sucked away by the external vacuum cleaner through the flexible three-way pipe 204, thereby effectively removing the fiber dust.

[0041] Specifically, such as Figure 2 and Figure 6 As shown, support blocks 12 are fixedly connected to both sides of the bottom of the lower suction box 202, and support blocks 13 are fixedly connected to the bottom of the support blocks 12. The rear side of the support blocks 13 is fixedly connected to the front side of the support rod 3.

[0042] Specifically, such as Figure 4 and Figure 6 As shown, the upper suction box 201 has fixed blocks 7 on both the front and rear sides, and a sliding rod 8 is fixedly connected to the bottom of the fixed block 7. The support block 13 has a sliding hole 14 inside, and the sliding rod 8 is slidably connected inside the sliding hole 14.

[0043] In this embodiment: the lower suction box 202 is stably fixed to the front side of the support rod 3 by the support block 12 and the support block 13, and is slidably connected to the inside of the sliding hole 14 by the sliding rod 8, so that the upper suction box 201 can move upward. At this time, the elastic three-way tube 204 extends, so that the papermaking blanket can be easily passed between the upper suction box 201 and the lower suction box 202.

[0044] Specifically, such as Figure 2 , Figure 4 and Figure 6 As shown, a spring 9 is movably sleeved on the surface of the slide bar 8, and the top of the spring 9 contacts the bottom of the support block 13.

[0045] Specifically, such as Figure 4 As shown, a pull ring 6 is fixedly connected to the top of the upper suction box 201. There are three pull rings 6, which are evenly distributed on the top of the upper suction box 201.

[0046] In this embodiment: when the upper suction box 201 moves upward, the spring 9 is compressed. When the spring 9 rebounds, the upper suction box 201 is pressed down, so that the surface of the roller 203 is in close contact with the surface of the papermaking blanket, ensuring effective dust suction. The upper suction box 201 can be easily pulled upward by holding the pull ring 6.

[0047] Working principle: The support plate 15 is fixed to the front side of the double-sided needle punching machine body 1. The support rod 3 is connected to the support plate 15 through the support plate 4, providing stable support. The retaining ring 502 is connected to the support rod 3 through the screw 501. The rotating roller 503 is rotatably connected in the retaining ring 502 to support and guide the papermaking blanket. The upper suction box 201 and the lower suction box 202 are connected to the external dust collection equipment through the flexible three-way pipe 204. The rollers 203 at the bottom of the upper suction box 201 and the top of the lower suction box 202 are in contact with the surface of the papermaking blanket and can rotate flexibly when the papermaking blanket moves. This allows for smoother movement of the papermaking felt, preventing scratches from the upper suction box 201 and lower suction box 202. When the needle-punched papermaking felt needs to pass between the upper and lower suction boxes 201 and 202, the pull ring 6 can be pulled upwards, causing the slide bar 8 to slide upwards within the slide hole 14. At this time, the spring 9 is compressed, thereby pulling the upper suction box 201 upwards, facilitating the passage of the felt. After this, the pull ring 6 is released, and the spring 9 rebounds, assisting the upper suction box 201 in pressing down, ensuring close contact between the roller 503 and the surface of the papermaking cap body. During processing, an external vacuum cleaner is connected to the flexible three-way pipe 204. The external vacuum cleaner generates negative pressure, which is transmitted through the flexible three-way pipe 204 to the upper suction box 201 and the lower suction box 202, creating a negative pressure environment within them. Under this negative pressure, the fiber dust generated on the surface of the papermaking felt is drawn into the boxes through the staggered suction holes 11 on the inner wall fixing plate 10 of the upper and lower suction boxes 201 and then removed by the vacuum cleaner through the flexible three-way pipe 204. This effectively removes fiber dust, preventing its spread in the workshop, protecting the working environment and worker health, and avoiding equipment failure caused by fiber dust accumulation. It solves the problem that some existing double-sided needle punching machines for producing papermaking blankets do not have a dust removal structure. During the needle punching process of papermaking blankets, the repeated piercing of fibers by the needles causes some fibers to break and fall off, forming dust that is inconvenient to remove. As the papermaking blankets move, fiber dust easily spreads in the workshop, polluting the working environment, endangering worker health, and potentially causing equipment failure due to fiber dust accumulation.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-sided needle punching machine for producing papermaking felt, comprising a double-sided needle punching machine body (1), characterized in that: The double-sided needle punch machine body (1) has support rods (3) on both sides of the front side, and a support mechanism (5) is provided between the front sides of the two support rods (3). A suction mechanism (2) is provided on the front side of the support mechanism (5). The suction mechanism (2) includes an upper suction box (201), a lower suction box (202), several rollers (203) and an elastic three-way tube (204). The top roller (203) is rotatably connected to the bottom of the upper suction box (201), and the bottom roller (203) is rotatably connected to the top of the lower suction box (202). The upper suction box (201) and the lower suction box (202) are fixedly connected to the elastic three-way tube (204) on the side near the elastic three-way tube (204).

2. The double-sided needle punching machine for producing papermaking felt according to claim 1, characterized in that: The support mechanism (5) includes several screws (501), two retaining rings (502), and a rotating roller (503). The rotating roller (503) is rotatably connected inside the retaining rings (502). The rear side of the retaining rings (502) contacts the front side of the support rod (3). The rear side of the screws (501) passes through the retaining rings (502) and is threadedly connected to the inside of the support rod (3).

3. A double-sided needle punching machine for producing papermaking felt according to claim 1, characterized in that: The bottom of the support rod (3) is fixedly connected to a support plate (15), and the rear side of the support plate (15) is fixedly connected to the front side of the double-sided needle punching machine body (1).

4. A double-sided needle punching machine for producing papermaking felt according to claim 3, characterized in that: The front and rear sides of the top of the support plate (15) are fixedly connected to the support plate (4), and the side of the support plate (4) near the support rod (3) is fixedly connected to the support rod (3).

5. A double-sided needle punching machine for producing papermaking felt according to claim 1, characterized in that: The inner walls of the upper suction box (201) and the lower suction box (202) are both fixedly connected to a fixing plate (10), and the fixing plate (10) has a suction hole (11) inside.

6. A double-sided needle punching machine for producing papermaking felt according to claim 5, characterized in that: The number of suction holes (11) is several and they are staggered inside the fixed plate (10).

7. A double-sided needle punching machine for producing papermaking felt according to claim 1, characterized in that: Both sides of the bottom of the lower suction box (202) are fixedly connected to support blocks (12), and the bottom of the support block (12) is fixedly connected to a support block (13). The rear side of the support block (13) is fixedly connected to the front side of the support rod (3).

8. A double-sided needle punching machine for producing papermaking felt according to claim 7, characterized in that: The upper suction box (201) has fixed blocks (7) on both the front and rear sides. The bottom of the fixed block (7) is fixedly connected to a sliding rod (8). The support block (13) has a sliding hole (14) inside. The sliding rod (8) is slidably connected inside the sliding hole (14).

9. A double-sided needle punching machine for producing papermaking felt according to claim 8, characterized in that: A spring (9) is movably sleeved on the surface of the slide bar (8), and the top of the spring (9) contacts the bottom of the support block (13).

10. A double-sided needle punching machine for producing papermaking felt according to claim 1, characterized in that: The top of the upper suction box (201) is fixedly connected with a pull ring (6), and the number of pull rings (6) is three and they are evenly distributed on the top of the upper suction box (201).

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