Papermaking felt production needling machine capable of preventing needle breakage with high precision

Abstract

The utility model discloses a high-precision needle breaking prevention needling machine for papermaking felt production, and belongs to the technical field of needling machines. The device is provided with a rack, a receiving frame, a feeding roller, a lower protection baffle, a first roller, a second roller, a needling limiting plate, a needling needle baffle, an upper protection plate, a limiting assembly, a second motor, a supporting plate, a rotating shaft, a rotating disc, a lengthening rod, a transmission rod, a needling needle beam, a needling needle fixing clamping plate, a needling needle body, a pressure buffering assembly, a partition plate, a first motor, a third roller, a receiving roller and a control switch. A telescopic spring on the outer side of the pressure buffering plate is matched with a telescopic rod on the top for buffering, so that auxiliary pressure buffering is ensured when the felting needle body works on the papermaking felt, the felting needle body is ensured to be stably contacted with the top of the papermaking felt, and circulating operation is realized; and then the pricking needle bodies can be separated from one another through the pricking needle baffle so as to ensure the efficiency of the pricking operation.

Description

Technical Field

[0001] The utility model relates to the technical field of acupuncture machines, in particular to a high-precision needle-breaking-proof papermaking blanket production acupuncture machine. Background Art

[0002] Papermaking felt needling machine is specially used for producing papermaking felt used in papermaking industry. The middle cross beam of the machine is cantilever beam structure, and there is cloth guide tension travel. There are many production models of annular structure papermaking felt products. It is a multi-needle plate, upper and lower thorn structure, wide machine, high needle density, and is a special equipment for producing papermaking felt.

[0003] At present, the Chinese utility model with announcement number: CN212669979U discloses a novel anti-broken needle papermaking felt needling machine, which includes a frame, a needle and a receiving roller; a feeding roller is provided on the left side surface of the lower part of the frame, a lower protective baffle is provided on the lower part of the frame, a first roller is provided above one side of the lower protective baffle, a second roller is provided on the right side of the first roller, a needle puncture limiting plate is provided between the first roller and the second roller, a needle baffle is provided on the needle puncture limiting plate, a second motor is provided on one side of the upper part of the frame, an output shaft of the second motor is connected to a rotating shaft through a coupling, a rotating shaft support plate is provided on the rotating shaft, a rotating disk is provided at one end of the rotating shaft, the rotating shaft is connected to an extension rod 14 through the rotating disk, and a connecting rod is provided on the extension rod 14. This utility model is easy to operate, improves the efficiency of acupuncture operation, can effectively prevent the problem of needle breakage, and protect the staff.

[0004] According to the above patent, the existing high-precision anti-needle breakage papermaking felt production needling machine can limit papermaking felts of different thicknesses when in use, thereby facilitating the needles to work more safely and reliably and avoiding needle breakage, and using needle baffles to separate the needles from each other, thereby protecting the needles and effectively preventing the problem of needle breakage. However, the whole only limits the papermaking felt, thereby preventing the needles from falling on the surface of the papermaking felt to avoid movement or shaking of the papermaking felt for operation, and cannot fully meet the need for auxiliary pressure relief for the needles when they work up and down, resulting in shaking of the needles when they move up and down in a circular motion, which can easily cause the needles to break when working on the surface of the papermaking felt. Therefore, a high-precision anti-needle breakage papermaking felt production needling machine is proposed to improve the above patent. Utility Model Content

[0005] The utility model provides a high-precision needle-breakage-proof papermaking blanket production needling machine, aiming to solve the problem that the existing high-precision needle-breakage-proof papermaking blanket production needling machine can limit papermaking blankets of different thicknesses when in use, thereby facilitating the needles to work more safely and reliably and avoiding the needles from breaking, and using needle baffles to separate the needles from each other, thereby protecting the needles and effectively preventing the needles from breaking. However, the whole machine only limits the papermaking blanket, thereby preventing the needles from falling onto the surface of the papermaking blanket for operation and avoiding the papermaking blanket from moving or shaking, and cannot fully meet the need for auxiliary pressure relief for the needles when the needles are working up and down, so that the needles will shake when they are working in an up and down cycle, and the problem of the needles easily breaking when working on the surface of the papermaking blanket is caused.

[0006] The utility model is achieved in this way, a high-precision anti-needle-breakage papermaking blanket production needle loom comprises a frame, the rear side of the frame is provided with a material receiving frame, the front side of the frame is bolted with a feeding roller, the bottom side of the frame is provided with a lower protective baffle, the front side of the frame is rotatably connected to a first roller, the first roller is located on the top of the lower protective baffle, the rear side of the first roller is provided with a second roller, a needle puncture limiting plate is provided between the first roller and the second roller, a needle puncture limiting plate is provided on the top of the needle puncture limiting plate, the front and rear sides of the top side of the frame are fixedly connected to an upper guard plate, a limiting assembly is provided at the bottom of the upper guard plate, the limiting assembly is located on the top of the needle baffle, a second motor is bolted to the top side of the rear side of the frame, a support plate is bolted to the top side of the frame, the output shaft of the second motor is bolted to a rotating shaft, and the rotating shaft is rotatably connected to the support plate The top of the said cutting mechanism is provided with a toothed wheel, and the toothed wheel is provided with a toothed wheel which is cooperatively connected with the toothed wheel.

[0007] The pressure relief assembly includes a telescopic rod, a pressure relief plate and a telescopic spring, wherein the telescopic rod is bolted to the front and rear sides of the bottom of the puncture needle fixing splint respectively, the telescopic rod is located on the outside of the puncture needle body, the pressure relief plate is bolted to the bottom of the telescopic rod, the pressure relief plate is located on the top of the puncture needle baffle, the telescopic spring is sleeved on the outside of the telescopic rod, the bottom of the telescopic spring contacts the top of the pressure relief plate, and the top of the telescopic spring contacts the bottom of the puncture needle fixing splint.

[0008] In order to achieve the effect of limiting papermaking felts of different thicknesses to facilitate the operation of the needle body, a high-precision anti-needle breakage papermaking felt production needling machine is preferred as the utility model. The limit assembly includes an electric push rod and an adjustment limit frame. The electric push rod is bolted to the bottom of the upper guard plate, and the adjustment limit frame is bolted to the bottom of the electric push rod. The adjustment limit frame is located on the top of the needle baffle.

[0009] In order to achieve the effect of supporting the frame and the material receiving rack, as a preferred embodiment of the utility model, a high-precision anti-needle-breakage papermaking blanket production needling machine has support legs bolted on both sides of the bottom of the frame and the material receiving rack, and a fixing plate is welded on the bottom of the support legs.

[0010] In order to achieve the effect of protecting and dissipating heat for the second motor, a high-precision anti-needle-breakage papermaking blanket production needling machine of the utility model is preferably configured such that a heat dissipation frame is bolted to the top of the frame, a hole groove is provided on the top of the heat dissipation frame, and the heat dissipation frame is located on the top of the second motor.

[0011] In order to achieve the effect of protecting the top of the heat dissipation frame from dust, as a preferred embodiment of the utility model of a high-precision anti-needle-breakage papermaking blanket production needling machine, the top of the heat dissipation frame is paved with a dustproof net, and the dustproof net is in the shape of a hexagonal mesh.

[0012] In order to achieve the effect of limiting the use of the transmission rod on the surface of the extension rod, as a preferred high-precision anti-needle breakage papermaking blanket production needling machine of the utility model, the front side of the extension rod is threadedly connected with a sealing bolt, and the sealing bolt is located on the front side of the transmission rod.

[0013] In order to achieve the effect of buffering and protecting when the pressure relief plate presses against the papermaking felt, a high-precision needle-breaking-proof papermaking felt production needling machine of the utility model is preferably configured such that a buffer pad is bonded to the bottom of the pressure relief plate, and the buffer pad is made of transparent silicone material.

[0014] In order to further enhance the anti-skid performance of the bottom of the buffer pad, as a preferred embodiment of the high-precision anti-needle-breakage papermaking blanket production needling machine of the utility model, the bottom of the buffer pad is provided with anti-skid patterns in a grid shape.

[0015] In order to further enhance the stability of the electric push rod during extension and retraction, a high-precision anti-needle-breakage papermaking blanket production needle punching machine of the utility model is preferably provided with a compression spring on the outer side of the electric push rod, and the top and bottom of the compression spring are respectively in contact with the bottom of the upper guard plate and the top of the adjustment limit frame.

[0016] In order to achieve the effect of separating the needle bodies from each other to protect the needles, as a high-precision anti-needle breakage papermaking blanket production needling machine of the utility model, preferably, the lower end of the needle body corresponds to the gap between the needle baffle, and the needle body is smaller than the gap inside the needle baffle.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The high-precision needle-breaking-proof papermaking felt production needle-punching machine is provided with a frame, a material collection frame, a feed roller, a lower protective baffle, a first roller, a second roller, a needle-punching limiting plate, a needle baffle, an upper protective plate, a limit assembly, a second motor, a support plate, a rotating shaft, a turntable, an extension rod, a transmission rod, a needle beam, a needle fixing splint, a needle body, a pressure-relief assembly, a partition, a first motor, a third roller, a material collection roller and a control switch. The control switch is controlled to turn on the first motor to drive the first roller, the second roller, the third roller and the material collection roller to rotate, and then the papermaking felt processing material is pulled to the top of the needle baffle at the bottom of the needle-punching limiting plate through the feed roller and the first roller, and then the papermaking felt of different thicknesses is pressed downward by starting the limit assembly at the bottom of the upper protective plate, so that the subsequent work of the needle body is safer and more reliable, and the breakage of the needle body is avoided. Then the output shaft of the second motor drives the rotating shaft to rotate, and the rotating shaft drives the extension rod to rotate through the turntable. Then it drives the connecting rod to transmit, and then the transmission rod drives the needle beam to move up and down. In this process, the pressure relief plates located at the front and rear sides of the bottom of the needle fixing splint contact the top of the papermaking felt. Therefore, when the needle beam moves up and down, its pressure relief plate always contacts the top of the papermaking felt before the needle body at the bottom of the needle fixing splint, and the telescopic spring on the outside of the pressure relief plate cooperates with the telescopic rod on the top for buffering, thereby ensuring that the needle body performs auxiliary pressure relief when operating on the papermaking felt, thereby ensuring that the needle body stably contacts the top of the papermaking felt and realizes cyclic operation, and then the needle baffle can separate the needle bodies from each other to ensure the efficiency of the needling operation, so as to achieve safe and reliable needling work and reduce the situation that the needle bodies on the surface of the papermaking felt are easy to break. Subsequently, it can be pulled to the receiving roller for winding through the third roller. Part of the structure described here directly quotes the document with patent number CN212669979U. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is the overall structure diagram of the high-precision anti-needle-breakage papermaking felt production needling machine of the utility model;

[0020] Figure 2 It is a schematic diagram of the planar structure of the frame and the material receiving rack in the utility model;

[0021] Figure 3 It is a schematic diagram of the plane structure of the frame in the utility model;

[0022] Figure 4 It is a schematic diagram of the planar structure of the second motor in the utility model;

[0023] Figure 5 It is a schematic diagram of the planar structure of the pressure relief component in the utility model;

[0024] Figure 6 It is a schematic diagram of the planar structure of the limiting component in the utility model.

[0025] In the figure, 1, frame; 2, material receiving frame; 3, feeding roller; 4, lower protective baffle; 5, first roller; 6, acupuncture limiting plate; 7, needle baffle; 8, upper guard plate; 9, limit assembly; 901, electric push rod; 902, limit adjustment frame; 10, second motor; 11, support plate; 12, rotating shaft; 13, turntable; 14, extension rod; 15, transmission rod; 16, needle beam; 17, needle fixing splint; 18. Needle body; 19. Pressure relief assembly; 1901. Telescopic rod; 1902. Pressure relief plate; 1903. Telescopic spring; 20. Partition; 21. First motor; 22. Third roller; 23. Material collection roller; 24. Control switch; 25. Support leg; 26. Heat dissipation rack; 27. Dustproof net; 28. Sealing bolt; 29. ​​Buffer pad; 30. Compression spring; 31. Second roller; 32. Connecting rod. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] See also Figure 1-6 The utility model provides a technical solution: a high-precision anti-broken needle papermaking felt production needle punching machine, comprising a frame 1, a receiving frame 2 is arranged at the rear side of the frame 1, a feeding roller 3 is bolted to the front side of the frame 1, a lower protective baffle 4 is arranged at the bottom side of the frame 1, a first roller 5 is rotatably connected to the front side of the frame 1, the first roller 5 is located at the top of the lower protective baffle 4, a second roller 31 is arranged at the rear side of the first roller 5, and a needle punching limiter is arranged between the first roller 5 and the second roller 31. The top of the acupuncture limiting plate 6 is provided with a needle baffle 7, the front and rear sides of the top side of the frame 1 are fixedly connected with an upper guard plate 8, the bottom of the upper guard plate 8 is provided with a limit assembly 9, the limit assembly 9 is located at the top of the needle baffle 7, the top side of the rear side of the frame 1 is bolted with a second motor 10, the top side of the frame 1 is bolted with a support plate 11, the output shaft of the second motor 10 is bolted with a rotating shaft 12, the rotating shaft 12 is rotatably connected to the inside of the support plate 11 and penetrates, and the front of the rotating shaft 12 is bolted to the top side of the rear side of the frame 1. The rotating disk 13 is fixedly connected to the side, the bottom of the front side of the rotating disk 13 is fixedly connected to the extension rod 14, the extension rod 14 is provided with a connecting rod 32, the bottom of the connecting rod 32 is rotatably connected to the transmission rod 15, the middle of the transmission rod 15 is provided with a limiting sliding hole, the bottom of the transmission rod 15 is bolted to a needle beam 16, the bottom of the needle beam 16 is bolted to a needle fixing splint 17, the bottom of the needle fixing splint 17 is provided with a needle body 18, and the front and rear sides of the bottom of the needle fixing splint 17 are provided with a pressure relief group Part 19, a partition 20 is bolted inside the receiving rack 2, a first motor 21 is bolted on the top of the partition 20, a third roller 22 and a receiving roller 23 are respectively arranged on the front and rear sides of the top of the receiving rack 2, a control switch 24 is bolted on the right side of the frame 1, the control switch 24 is respectively electrically connected to the first motor 21, the second motor 10 and the limit assembly 9, and the first motor 21 is respectively connected to the first roller 5, the second roller 31, the third roller 22 and the receiving roller 23 through a transmission chain;

[0029] The pressure relief assembly 19 includes a telescopic rod 1901, a pressure relief plate 1902 and a telescopic spring 1903. The telescopic rod 1901 is bolted to the front and rear sides of the bottom of the needle fixing splint 17 respectively. The telescopic rod 1901 is located on the outside of the needle body 18. The pressure relief plate 1902 is bolted to the bottom of the telescopic rod 1901. The pressure relief plate 1902 is located on the top of the needle baffle 7. The telescopic spring 1903 is sleeved on the outside of the telescopic rod 1901. The bottom of the telescopic spring 1903 contacts the top of the pressure relief plate 1902, and the top of the telescopic spring 1903 contacts the bottom of the needle fixing splint 17.

[0030] In this embodiment: by setting a frame 1, a receiving frame 2, a feeding roller 3, a lower protective baffle 4, a first roller 5, a second roller 31, a needle limiting plate 6, a needle baffle 7, an upper guard plate 8, a limit assembly 9, a second motor 10, a support plate 11, a rotating shaft 12, a rotating disk 13, an extension rod 14, a transmission rod 15, a needle beam 16, a needle fixing splint 17, a needle body 18, a pressure relief assembly 19, a partition 20, a first motor 21, a third roller 22, a receiving roller 23 and a control switch 24, the control switch 2 The first motor 21 is turned on to drive the first roller 5, the second roller 31, the third roller 22 and the receiving roller 23 to rotate, and then the papermaking felt processing material is pulled to the top of the needle baffle 7 at the bottom of the needle limiting plate 6 through the feeding roller 3 and the first roller 5, and then the limiting component 9 located at the bottom of the upper guard plate 8 is started to press down the papermaking felts of different thicknesses, so that the subsequent work of the needle body 18 is safer and more reliable, and the breakage of the needle body 18 is avoided. Then the output shaft of the second motor 10 drives the rotating shaft 12 The rotating shaft 12 drives the extension rod 14 to rotate through the rotating disk 13, and then drives the connecting rod 32 to transmit, and then the transmission rod 15 drives the needle beam 16 to move up and down. In this process, the buffer plates 1902 located at the front and rear sides of the bottom of the needle fixing clamp 17 contact the top of the papermaking felt. Therefore, when the needle beam 16 moves up and down, the buffer plate 1902 always contacts the top of the papermaking felt before the needle body 18 at the bottom of the needle fixing clamp 17, and the telescopic spring 1903 on the outside of the buffer plate 1902 Cooperate with the telescopic rod 1901 at the top for buffering, so as to ensure that the needle body 18 can assist in relieving the pressure when operating on the papermaking felt, thereby ensuring that the needle body 18 can stably contact the top of the papermaking felt and realize the circulating operation, and then the needle baffle 7 can separate the needle bodies 18 from each other to ensure the efficiency of the needling operation, so as to achieve safe and reliable needling work, and reduce the situation that the needle body 18 on the surface of the papermaking felt is easy to break, and then it can be pulled to the receiving roller 23 for winding through the third roller 22.

[0031] As a technical optimization solution of the utility model, the limit assembly 9 includes an electric push rod 901 and an adjustment limit frame 902. The electric push rod 901 is bolted to the bottom of the upper guard plate 8, and the adjustment limit frame 902 is bolted to the bottom of the electric push rod 901. The adjustment limit frame 902 is located at the top of the needle baffle 7.

[0032] In this embodiment: by setting an electric push rod 901 and an adjustment limit frame 902, the electric push rod 901 located at the bottom of the upper guard plate 8 is started to push the adjustment limit frame 902 to achieve downward pressure restriction on papermaking felts of different thicknesses, so that the subsequent operation of the needle body 18 is safer and more reliable, and the breakage of the needle body 18 is avoided.

[0033] As a technical optimization solution of the utility model, support legs 25 are bolted to both sides of the bottom of the frame 1 and the material receiving rack 2, and a fixing plate is welded to the bottom of the support legs 25.

[0034] In this embodiment, by providing the supporting legs 25, the frame 1 and the material receiving rack 2 can be supported for easy use.

[0035] As a technical optimization solution of the present invention, a heat sink 26 is bolted to the top of the frame 1 , a hole groove is opened on the top of the heat sink 26 , and the heat sink 26 is located on the top of the second motor 10 .

[0036] In this embodiment, by providing a heat dissipation frame 26, the second motor 10 can be protected and dissipated for ease of use.

[0037] As a technical optimization solution of the present invention, a dustproof net 27 is laid on the top of the heat dissipation frame 26, and the dustproof net 27 is in the shape of a hexagonal mesh.

[0038] In this embodiment, a dustproof net 27 is provided to protect the top of the heat dissipation frame 26 from dust, thereby facilitating use.

[0039] As a technical optimization solution of the utility model, a sealing bolt 28 is threadedly connected to the front side of the extension rod 14 , and the sealing bolt 28 is located at the front side of the transmission rod 15 .

[0040] In this embodiment, by providing the sealing bolt 28, the transmission rod 15 on the surface of the extension rod 14 can be restricted in use, so as to facilitate use.

[0041] As a technical optimization solution of the present invention, a buffer pad 29 is bonded to the bottom of the pressure relief plate 1902, and the buffer pad 29 is made of transparent silicone material.

[0042] In this embodiment: by providing a buffer pad 29, the effect of buffering and protecting when the pressure relief plate 1902 presses the papermaking felt can be achieved, which is convenient for use.

[0043] As a technical optimization solution of the present invention, the bottom of the buffer pad 29 is provided with anti-skid patterns, and the anti-skid patterns are in a grid shape.

[0044] In this embodiment, a grid-shaped anti-skid pattern is provided at the bottom of the buffer pad 29, so that the anti-skid performance of the bottom of the buffer pad 29 can be further improved, which is convenient for use.

[0045] As a technical optimization solution of the utility model, a compression spring 30 is sleeved on the outer side of the electric push rod 901, and the top and bottom of the compression spring 30 are in contact with the bottom of the upper guard plate 8 and the top of the adjustment limit frame 902 respectively.

[0046] In this embodiment, by providing a compression spring 30, the stability of the electric push rod 901 during extension and retraction can be further improved, so as to facilitate use.

[0047] As a technical optimization solution of the present invention, the lower end of the puncture needle body 18 corresponds to the gap between the puncture needle baffle 7 , and the puncture needle body 18 is smaller than the gap inside the puncture needle baffle 7 .

[0048] In this embodiment, the needle bodies 18 can be separated from each other to protect the needles and facilitate their use.

[0049] Working principle: First, the papermaking felt processing material is pulled to the top of the needle baffle 7 at the bottom of the needle limiting plate 6 through the feed roller 3 and the first roller 5, and then the papermaking felts of different thicknesses are pressed down by starting the limit assembly 9 at the bottom of the upper guard plate 8, so that the subsequent work of the needle body 18 is safer and more reliable, and the breakage of the needle body 18 is avoided. Then the output shaft of the second motor 10 drives the rotating shaft 12 to rotate, and the rotating shaft 12 drives the extension rod 14 to rotate through the turntable 13, and then drives the connecting rod 32 to transmit, and then the transmission rod 15 drives the needle beam 16 to move up and down. In this process, the pressure relief plates 1902 located at the front and rear sides of the bottom of the needle fixing splint 17 contact the top of the papermaking felt, so that the needle beam 16 When moving up and down, the pressure relief plate 1902 always contacts the top of the papermaking felt before the needle body 18 at the bottom of the needle fixing splint 17, and the telescopic spring 1903 on the outside of the pressure relief plate 1902 cooperates with the telescopic rod 1901 on the top for buffering, thereby ensuring that the needle body 18 can provide auxiliary pressure relief when operating on the papermaking felt, thereby ensuring that the needle body 18 can stably contact the top of the papermaking felt and realize cyclic operation, and then the needle baffle 7 can separate the needle bodies 18 from each other to ensure the efficiency of the needling operation, so as to achieve safe and reliable needling work and reduce the easy breakage of the needle body 18 on the surface of the papermaking felt, and then it can be pulled to the receiving roller 23 for winding through the third roller 22.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision needle-breaking-proof papermaking felt production needle-punching machine, comprising a frame (1), characterized in that: A receiving rack (2) is arranged at the rear side of the frame (1), a feeding roller (3) is bolted to the front side of the frame (1), a lower protective baffle (4) is arranged at the bottom side of the frame (1), a first roller (5) is rotatably connected to the front side of the frame (1), the first roller (5) is located on the top of the lower protective baffle (4), a second roller (31) is arranged at the rear side of the first roller (5), a needle puncture limiting plate (6) is arranged between the first roller (5) and the second roller (31), a needle baffle (7) is arranged on the top of the needle puncture limiting plate (6), and the frame ( 1) The front and rear sides of the internal top side are fixedly connected to an upper guard plate (8), a limit assembly (9) is arranged at the bottom of the upper guard plate (8), and the limit assembly (9) is located on the top of the needle baffle (7), a second motor (10) is bolted to the top side of the internal rear side of the frame (1), a support plate (11) is bolted to the top side of the internal frame (1), a rotating shaft (12) is bolted to the output shaft of the second motor (10), and the rotating shaft (12) is rotatably connected to the inside of the support plate (11) and penetrates through it, a rotating disk (13) is fixedly connected to the front side of the rotating shaft (12), and the rotating disk (13) is fixedly connected to the front side of the rotating shaft (12), and the rotating disk (13) is fixedly connected to the front side of the rotating shaft (12). 3) The bottom of the front side is fixedly connected with an extension rod (14), the extension rod (14) is provided with a connecting rod (32), the bottom of the connecting rod (32) is rotatably connected with a transmission rod (15), the middle of the transmission rod (15) is provided with a limiting sliding hole, the bottom of the transmission rod (15) is bolted with a needle beam (16), the bottom of the needle beam (16) is bolted with a needle fixing splint (17), the bottom of the needle fixing splint (17) is provided with a needle body (18), the front and rear sides of the bottom of the needle fixing splint (17) are both provided with a pressure relief assembly (19), the material receiving rack (2) is bolted with a partition (20) inside, the top of the partition (20) is bolted with a first motor (21), the front and rear sides of the top of the receiving frame (2) are respectively provided with a third roller (22) and a receiving roller (23), the right side of the frame (1) is bolted with a control switch (24), the control switch (24) is respectively electrically connected to the first motor (21), the second motor (10) and the limit assembly (9), the first motor (21) is respectively connected to the first roller (5), the second roller (31), the third roller (22) and the receiving roller (23) through a transmission chain; The pressure relief assembly (19) comprises a telescopic rod (1901), a pressure relief plate (1902) and a telescopic spring (1903); the telescopic rod (1901) is bolted to the front side and the rear side of the bottom of the puncture needle fixing splint (17) respectively; the telescopic rod (1901) is located on the outside of the puncture needle body (18); the pressure relief plate (1902) is bolted to the bottom of the telescopic rod (1901); the pressure relief plate (1902) is located on the top of the puncture needle baffle (7); the telescopic spring (1903) is sleeved on the outside of the telescopic rod (1901); the bottom of the telescopic spring (1903) contacts the top of the pressure relief plate (1902); and the top of the telescopic spring (1903) contacts the bottom of the puncture needle fixing splint (17).

2. A high-precision needle-breaking-proof papermaking felt production needle punching machine according to claim 1, characterized in that: The limit assembly (9) comprises an electric push rod (901) and an adjustable limit frame (902), wherein the electric push rod (901) is bolted to the bottom of the upper guard plate (8), and the adjustable limit frame (902) is bolted to the bottom of the electric push rod (901), and the adjustable limit frame (902) is located on the top of the needle baffle (7).

3. The high-precision needle-breaking-proof papermaking felt production needle punching machine according to claim 1, characterized in that: Support legs (25) are bolted to both sides of the bottom of the frame (1) and the material receiving rack (2), and a fixing plate is welded to the bottom of the support legs (25).

4. The high-precision needle-breaking-proof papermaking felt production needle punching machine according to claim 1, characterized in that: A heat sink (26) is bolted to the top of the frame (1), a hole slot is provided on the top of the heat sink (26), and the heat sink (26) is located on the top of the second motor (10).

5. A high-precision needle-breaking-proof papermaking felt production needling machine according to claim 4, characterized in that: A dustproof net (27) is laid on the top of the heat dissipation frame (26), and the dustproof net (27) is in the shape of a hexagonal mesh.

6. The high-precision needle-breaking-proof papermaking felt production needle punching machine according to claim 1, characterized in that: The front side of the extension rod (14) is threadedly connected with a sealing bolt (28), and the sealing bolt (28) is located on the front side of the transmission rod (15).

7. The high-precision needle-breaking-proof papermaking felt production needle punching machine according to claim 1, characterized in that: A buffer pad (29) is bonded to the bottom of the pressure relief plate (1902), and the buffer pad (29) is made of transparent silicone material.

8. The high-precision needle-breaking-proof papermaking felt production needling machine according to claim 7, characterized in that: The bottom of the buffer pad (29) is provided with anti-skid patterns, and the anti-skid patterns are in a grid shape.

9. The high-precision needle-breaking-proof papermaking felt production needling machine according to claim 2, characterized in that: The outer side of the electric push rod (901) is sleeved with a compression spring (30), and the top and bottom of the compression spring (30) are respectively in contact with the bottom of the upper guard plate (8) and the top of the adjustment limit frame (902).

10. The high-precision needle-breaking-proof papermaking felt production needle punching machine according to claim 1, characterized in that: The lower end of the puncture needle body (18) corresponds to the gap between the puncture needle baffle (7), and the puncture needle body (18) is smaller than the gap inside the puncture needle baffle (7).

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