Needle machine piston rod lubricating device based on high-speed oil injection

Abstract

The utility model discloses a needling machine piston rod lubricating device based on high-speed oil injection, which belongs to the technical field of needling machine piston rod lubrication, and comprises a rack, the top of the rack is fixedly connected with a hydraulic device, the bottom of a piston rod of the hydraulic device is fixedly connected with a needle plate, and the bottom of the needle plate is fixedly provided with needles. A high-speed oil injection lubricating assembly is arranged on the surface of the hydraulic device piston rod, a collecting assembly is arranged at the bottom of the high-speed oil injection lubricating assembly, and 360-degree all-dimensional high-speed oil injection on the surface of the hydraulic device piston rod can be achieved through the arrangement of the high-speed oil injection lubricating assembly, a plurality of evenly-distributed oil injection nozzles and the cooperation of an annularly-arranged arc-shaped pipe. Compared with a traditional lubricating mode, a complete lubricating film can be formed on the surface of the piston rod more evenly and rapidly, friction and abrasion are effectively reduced, and the lubricating device is particularly suitable for the high-frequency reciprocating working condition of the piston rod and guarantees long-term stable operation of a needling machine.

Description

Technical Field

[0001] This utility model relates to the field of piston rod lubrication technology for acupuncture machines, and particularly to a piston rod lubrication device for acupuncture machines based on high-speed oil injection. Background Technology

[0002] In the field of nonwoven fabric production, needle punching machines are key equipment for reinforcing and forming fiber webs. Their working principle is to drive the needle plate and needles to perform high-frequency reciprocating motion through the piston rod, so that the fibers entangle with each other to form fabric. In this process, the piston rod needs to withstand high-frequency impact loads and frictional resistance. Therefore, efficient and stable lubrication is crucial to ensuring the normal operation of the needle punching machine and extending its service life.

[0003] The commonly used lubrication methods for piston rods in existing needle punching machines mainly include manual application of grease and traditional drip lubrication. Manual application of grease has problems such as uneven lubrication and difficulty in controlling the application frequency. Moreover, when the equipment is running at high speed, the grease is easily thrown out by centrifugal force, failing to form an effective lubricating film, which leads to increased wear on the piston rod, seals, guide sleeves, and other components. Although traditional drip lubrication has achieved a certain degree of automation, the dripping speed and position are difficult to control precisely, resulting in lubrication blind spots. Furthermore, excess lubricating oil is easily dripped into the working area, causing waste and contaminating the fabric, thus affecting product quality.

[0004] To address this, a piston rod lubrication device for a needle punching machine based on high-speed oil injection is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a lubrication device for the piston rod of a needle punching machine based on high-speed oil spraying. This device can solve the problems of the commonly used lubrication methods for the piston rod of existing needle punching machines, which mainly include manual application of grease and traditional drip lubrication. Manual application of grease has problems such as uneven lubrication and difficulty in controlling the application frequency. Moreover, when the equipment is running at high speed, the grease is easily thrown out by centrifugal force, which cannot form an effective lubricating film, leading to increased wear on the piston rod and components such as seals and guide sleeves. Although traditional drip lubrication has achieved a certain degree of automation, the dripping speed and position are difficult to control precisely, resulting in lubrication blind spots. Furthermore, excess lubricating oil is easy to drip into the working area, which not only causes waste but also contaminates the fabric and affects product quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a piston rod lubrication device for a needle-punching machine based on high-speed oil injection, comprising a frame, a hydraulic device fixedly connected to the top of the frame, a needle plate fixedly connected to the bottom of the piston rod of the hydraulic device, a needle fixedly installed at the bottom of the needle plate, a high-speed oil injection lubrication assembly provided on the surface of the piston rod of the hydraulic device, and a collection assembly provided at the bottom of the high-speed oil injection lubrication assembly, the collection assembly including a collection groove;

[0007] The high-speed oil injection lubrication assembly includes a top cover, and the number of top covers is set to two, with a mounting cavity fixedly connected to the bottom of each top cover. The mounting cavity and the top cover are both semi-circular. The piston rod of the hydraulic device is slidably connected between the two top covers on opposite sides. The inner wall of the mounting cavity is evenly provided with multiple mounting grooves. An arc-shaped tube is fixedly connected inside the mounting groove. An oil injector is fixedly connected to the side of the arc-shaped tube near the piston rod of the hydraulic device. The number of oil injectors is set to multiple and evenly distributed.

[0008] Preferably, an arc-shaped block is fixedly connected to the bottom of the mounting cavity, and the collection groove is opened on the top of the arc-shaped block and is in communication with the mounting cavity.

[0009] Preferably, an oil storage tank is fixedly connected to the rear side of the frame, a centrifugal pump is fixedly connected to the side of the oil storage tank, and the discharge end of the centrifugal pump is fixedly connected to the oil storage tank. A suction pipe is fixedly connected to the suction end of the centrifugal pump, and the suction pipe is made of a retractable material. The other end of the suction pipe passes through the frame and the arc-shaped block and is fixedly connected to the collection tank. A filter screen is provided inside the suction pipe near the end of the collection tank.

[0010] Preferably, the inner wall of the arc-shaped block is slidably connected to the surface of the piston rod of the hydraulic device, and the top end of the inner wall of the collecting trough is set as an inclined surface.

[0011] Preferably, a high-pressure piston pump is fixedly connected to the top of the oil storage tank, and the suction end of the high-pressure piston pump is fixedly connected to the oil storage tank. An oil delivery pipe is fixedly connected to the discharge end of the high-pressure piston pump. A corrugated branch pipe is fixedly connected to the top end of the oil delivery pipe. Both ends of the corrugated branch pipe pass through the frame and are fixedly connected to a diversion pipe.

[0012] Preferably, the side of the diversion pipe near the mounting cavity is fixedly connected to multiple branch pipes, and the other end of the branch pipe passes through the mounting cavity and is fixedly connected to the arc-shaped pipe.

[0013] Preferably, electric push rods are fixedly connected to both sides of the inner wall of the frame, and the telescopic ends of the two electric push rods are arranged opposite each other.

[0014] Preferably, the telescopic end of the electric push rod is fixedly connected to a connecting block, which is fixedly connected to the side of the two mounting cavities that are far apart.

[0015] Preferably, a sealing groove is provided on the left side of the top cover, the mounting cavity, and the inner wall of the arc-shaped block, and a rubber sealing ring is fixedly connected to the right side of the top cover, the mounting cavity, and the inner wall of the arc-shaped block. The rubber sealing ring is used in conjunction with the sealing groove.

[0016] Preferably, a controller is fixedly installed on the right side of the frame, and the centrifugal pump, high-pressure piston pump and electric push rod are all electrically connected to the controller.

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

[0018] 1. This application sets up a high-speed oil injection lubrication component, which uses multiple evenly distributed oil nozzles and annularly arranged arc-shaped pipes to achieve 360-degree all-round high-speed oil injection on the surface of the piston rod of the hydraulic device. Compared with traditional lubrication methods, it can form a complete lubricating film on the piston rod surface more evenly and quickly, effectively reducing friction and wear. It is especially suitable for high-frequency reciprocating motion of the piston rod, ensuring the long-term stable operation of the needle punching machine.

[0019] 2. This application sets up a collection component, and the collection tank can directly receive the excess lubricating oil sprayed by the high-speed oil injection component. The oil is then transported to the oil storage tank by a centrifugal pump, realizing the closed-loop recycling of lubricating oil and preventing lubricating oil from dripping directly onto the equipment or the ground, thus reducing oil pollution to the working environment. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the piston rod lubrication device for a needle punching machine based on high-speed oil injection, according to this utility model.

[0021] Figure 2 This utility model Figure 1 Rear view;

[0022] Figure 3 This is a schematic diagram of the high-speed oil injection lubrication assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the collecting component of this utility model;

[0024] Figure 5 This utility model Figure 3 Side view.

[0025] In the diagram, 1. Frame; 2. Hydraulic device; 3. Needle plate; 4. Needle; 5. High-speed oil injection lubrication assembly; 501. Top cover; 502. Mounting cavity; 503. Mounting groove; 504. Arc-shaped pipe; 505. Oil injector; 6. Collection assembly; 601. Collection groove; 602. Arc-shaped block; 603. Centrifugal pump; 604. Suction pipe; 7. Oil reservoir; 8. High-pressure piston pump; 9. Oil delivery pipe; 10. Corrugated branch pipe; 11. Diverter pipe; 12. Branch pipe; 13. Electric push rod; 14. Connecting block; 15. Sealing groove; 16. Rubber sealing ring; 17. Controller. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A high-speed oil-injection acupuncture machine piston rod lubrication device includes a frame 1, a hydraulic device 2 fixedly connected to the top of the frame 1, a needle plate 3 fixedly connected to the bottom of the piston rod of the hydraulic device 2, a needle 4 fixedly installed at the bottom of the needle plate 3, a high-speed oil-injection lubrication assembly 5 provided on the surface of the piston rod of the hydraulic device 2, and a collection assembly 6 provided at the bottom of the high-speed oil-injection lubrication assembly 5, the collection assembly 6 including a collection groove 601.

[0029] The high-speed oil injection lubrication assembly 5 includes a top cover 501. The number of top covers 501 is set to two, and the bottom of each of the two top covers 501 is fixedly connected to a mounting cavity 502. The mounting cavity 502 and the top cover 501 are both semi-circular. The piston rod of the hydraulic device 2 is slidably connected between the opposite sides of the two top covers 501. The inner wall of the mounting cavity 502 is evenly provided with a plurality of mounting grooves 503. An arc-shaped tube 504 is fixedly connected inside the mounting groove 503. An oil injector 505 is fixedly connected to the side of the arc-shaped tube 504 near the piston rod of the hydraulic device 2. The number of oil injectors 505 is set to multiple and evenly distributed.

[0030] In this embodiment: by setting a high-speed oil injection lubrication assembly 5, the two semi-circular top covers 501 and the mounting cavity 502 can wrap the piston rod of the hydraulic device 2, which is convenient for quick installation and disassembly without disassembling the entire hydraulic device 2, greatly shortening the maintenance time. The arc-shaped tube 504 is a distribution pipe for lubricating oil. It is arranged around the piston rod and can evenly deliver the high-pressure oil from the distribution pipe 11 to each nozzle 505. The arc-shaped tube 504 is embedded in the mounting groove 503 on the inner wall of the mounting cavity 502, which can protect the arc-shaped tube 504 from external impact and make the structure compact, reducing space occupation. Multiple nozzles 505 are arranged around the arc-shaped tube 504, which can form a 360-degree full coverage of oil spray on the piston rod surface, ensuring that the lubricating oil film is uniform. In addition, the nozzles 505 are pressured by the high-pressure piston pump 8, which causes the lubricating oil to impact the piston rod surface in the form of a high-speed jet, effectively penetrating into the tiny gap between the seal and the piston rod to form a stable lubricating film, thereby achieving a good lubrication effect.

[0031] Specifically, such as Figure 3 , Figure 4 , Figure 5As shown, an arc-shaped block 602 is fixedly connected to the bottom of the mounting cavity 502, and a collection groove 601 is opened on the top of the arc-shaped block 602 and the collection groove 601 is connected to the mounting cavity 502.

[0032] Specifically, such as Figure 2 , Figure 3 As shown, an oil storage tank 7 is fixedly connected to the rear side of the frame 1. A centrifugal pump 603 is fixedly connected to the side of the oil storage tank 7, and the discharge end of the centrifugal pump 603 is fixedly connected to the oil storage tank 7. A suction pipe 604 is fixedly connected to the suction end of the centrifugal pump 603, and the suction pipe 604 is made of a retractable material. The other end of the suction pipe 604 passes through the frame 1 and the arc-shaped block 602 and is fixedly connected to the collection tank 601. A filter screen is provided inside the suction pipe 604 at the end near the collection tank 601.

[0033] Specifically, as shown in Figure 4, the inner wall of the arc-shaped block 602 is slidably connected to the surface of the piston rod of the hydraulic device 2, and the top of the inner wall of the collection groove 601 is set as an inclined surface.

[0034] In this embodiment: Through the above settings, the inner wall of the arc-shaped block 602 slides in contact with the surface of the piston rod to form a lip-shaped seal structure, which prevents lubricating oil from splashing downwards to the needle-piercing area. At the same time, it can prevent external impurities from entering the interior of the high-speed oil injection lubrication assembly 5. The collection tank 601 is connected to the internal space of the mounting cavity 502, so that the lubricating oil that is not absorbed by the piston rod can flow directly into the collection tank 601, avoiding accumulation that would cause pressure to rise and affect the oil injection effect. The inclined surface designed at the top of the inner wall of the collection tank 601 can guide the splashed lubricating oil to converge towards the center of the collection tank 601, accelerating the lubricating oil recovery efficiency. The oil storage tank 7 can store a large amount of lubricating oil, which can meet the lubrication needs of the needle-piercing machine during continuous operation. The centrifugal pump 603 can draw out the lubricating oil in the collection tank 601 through the suction pipe 604, and discharge the drawn lubricating oil back into the oil storage tank 7 through its discharge end, ensuring the circulation of the lubricating oil. The filter screen inside the suction pipe 604 can intercept large particles of impurities, preventing large particles of impurities from affecting the lubrication effect on the piston rod.

[0035] Specifically, such as Figure 2 , Figure 5 As shown, a high-pressure piston pump 8 is fixedly connected to the top of the oil storage tank 7, and the suction end of the high-pressure piston pump 8 is fixedly connected to the oil storage tank 7. The discharge end of the high-pressure piston pump 8 is fixedly connected to the oil supply pipe 9. The top end of the oil supply pipe 9 is fixedly connected to the corrugated branch pipe 10. Both ends of the corrugated branch pipe 10 pass through the frame 1 and are fixedly connected to the diversion pipe 11.

[0036] Specifically, such as Figure 5 As shown, the side of the diversion pipe 11 near the mounting cavity 502 is fixedly connected to multiple branch pipes 12, and the other end of the branch pipe 12 passes through the mounting cavity 502 and is fixedly connected to the arc-shaped pipe 504.

[0037] In this embodiment: With the above settings, the high-pressure piston pump 8 can draw lubricating oil from the oil reservoir 7 and pressurize it to meet the pressure requirements of the injector 505, so that the lubricating oil under high pressure can form an atomization effect, ensuring that the lubricating oil evenly covers the piston rod surface. The corrugated branch pipe 10 is extensible, so that the movement of the two mounting cavities 502 will not affect the delivery effect of the corrugated branch pipe 10. The corrugated branch pipe 10 can also divide the lubricating oil into two paths, which are delivered to two branch pipes 11 respectively. The branch pipe 11 serves as the main distribution channel, which can evenly distribute the lubricating oil to each branch pipe 12, ensuring that each injector 505 receives the same pressure and flow. Multiple branch pipes 12 will deliver the lubricating oil to different positions of the arc pipe 504, making the pressure distribution in the arc pipe 504 more uniform, ensuring that the two mounting cavities 502 can be supplied with oil synchronously, and achieving circumferential uniform lubrication.

[0038] Specifically, such as Figure 1 As shown, electric push rods 13 are fixedly connected to both sides of the inner wall of the frame 1, and the telescopic ends of the two electric push rods 13 are arranged opposite each other.

[0039] Specifically, such as Figure 1 As shown, the telescopic end of the electric push rod 13 is fixedly connected to a connecting block 14, which is fixedly connected to the side of the two mounting cavities 502 that are far apart.

[0040] In this embodiment: With the above settings, the electric push rod 13 can be extended synchronously to push the two mounting cavities 502 closer to the piston rod, thereby achieving the enclosure and sealing of the piston rod. When it is necessary to repair or replace the oil injection assembly, the electric push rod 13 can retract to quickly separate the mounting cavities 502 without the need for complicated tools. Furthermore, the synchronous control of the electric push rod 13 can ensure that the center of the mounting cavity 502 is precisely aligned with the piston rod axis, avoiding uneven lubrication or sealing failure caused by eccentricity. The connecting block 14 can evenly transmit the thrust of the electric push rod 13 to the outside of the mounting cavity 502, ensuring force balance and preventing deformation of the mounting cavity 502.

[0041] Specifically, such as Figure 3 As shown, sealing grooves 15 are provided on the left side of the inner wall of the top cover 501, the mounting cavity 502, and the arc-shaped block 602. Rubber sealing rings 16 are fixedly connected to the right side of the inner wall of the top cover 501, the mounting cavity 502, and the arc-shaped block 602. The rubber sealing rings 16 are used in conjunction with the sealing grooves 15.

[0042] Specifically, such as Figure 1 As shown, a controller 17 is fixedly installed on the right side of the frame 1. The centrifugal pump 603, the high-pressure piston pump 8, and the electric push rod 13 are all electrically connected to the controller 17.

[0043] In this embodiment: With the above settings, when the two mounting cavities 502 approach the piston rod and encircle the piston rod, the sealing rubber sealing ring 16 will be compressed and fill the sealing groove 15, which can block the overflow path of lubricating oil and prevent lubricating oil from dripping along the connection of the two mounting cavities 502, ensuring sealing reliability. The controller 17 can realize the coordinated control of the centrifugal pump 603, the high-pressure piston pump 8, and the electric push rod 13 through programming, further improving the operating accuracy.

[0044] Working principle: First, the hydraulic device 2 drives the piston rod to descend to the working position. Then, the controller 17 causes the electric push rod 13 to extend synchronously. The extension end of the electric push rod 13 pushes the connecting block 14 and the two mounting cavities 502 towards the piston rod until the rubber sealing ring 16 is precisely embedded in the sealing groove 15. Then, the high-pressure piston pump 8 is started. The high-pressure piston pump 8 draws lubricating oil from the oil tank 7, pressurizes the lubricating oil, and then delivers it to the oil supply pipe 9. The high-pressure lubricating oil delivered by the oil supply pipe 9 enters the corrugated branch pipe 10 for diversion, and then is evenly distributed to the branch pipes 11 on both sides. The branch pipes 11 then distribute the lubricating oil through multiple branch pipes 12. The lubricating oil is delivered to each injector 505. Multiple evenly distributed injectors 505 will then spray lubricating oil at high speed onto the piston rod surface of the hydraulic device 2, forming a uniformly thick lubricating film. This effectively reduces friction and wear during piston rod movement. After the lubricating oil is sprayed onto the piston rod surface, excess lubricating oil will flow downwards into the collection tank 601 under the influence of gravity and the piston rod's movement. Then, the centrifugal pump 603 is activated, and through the suction pipe 604, it draws the lubricating oil from the collection tank 601 back to the oil storage tank 7. The filter inside the suction pipe 604 can intercept impurities in the lubricating oil, preventing impurities from entering the oil storage tank 7 and causing secondary pollution.

[0045] 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 lubricating device for the needle bar of a high speed needle loom based on oil injection, comprising a frame (1), characterized in that: The top of the rack (1) is fixedly connected with a hydraulic device (2), the bottom of the piston rod of the hydraulic device (2) is fixedly connected with a needle plate (3), the bottom of the needle plate (3) is fixedly installed with a needle (4), the surface of the piston rod of the hydraulic device (2) is provided with a high-speed oil injection lubricating assembly (5), the bottom of the high-speed oil injection lubricating assembly (5) is provided with a collecting assembly (6), and the collecting assembly (6) comprises a collecting groove (601). The high-speed oil injection lubricating assembly (5) comprises a top cover (501), the number of the top cover (501) is two, the bottom of each of the two top covers (501) is fixedly connected with a mounting cavity (502), the mounting cavity (502) and the top cover (501) are both semicircular, the piston rod of the hydraulic device (2) is slidably connected between the opposite sides of the two top covers (501), the inner wall of the mounting cavity (502) is uniformly provided with a plurality of mounting grooves (503), the inside of the mounting groove (503) is fixedly connected with an arc-shaped pipe (504), the side of the arc-shaped pipe (504) close to the piston rod of the hydraulic device (2) is fixedly communicated with an oil injection nozzle (505), and the number of the oil injection nozzle (505) is multiple and uniformly distributed.

2. The high velocity oil injection based lubrication device for the needle punch machine piston rod as claimed in claim 1 wherein: The bottom of the mounting cavity (502) is fixedly connected with an arc-shaped block (602), the collecting groove (601) is formed in the top of the arc-shaped block (602) and the collecting groove (601) and the mounting cavity (502) are communicated with each other.

3. The high velocity oil injection based lubrication of the ram of a needle loom as claimed in claim 2, wherein: The rear side of the rack (1) is fixedly connected with an oil storage tank (7), the side of the oil storage tank (7) is fixedly connected with a centrifugal pump (603), the discharge end of the centrifugal pump (603) is fixedly communicated with the oil storage tank (7), the suction end of the centrifugal pump (603) is fixedly communicated with a suction pipe (604) made of telescopic material, the other end of the suction pipe (604) penetrates through the rack (1) and the arc-shaped block (602) and is fixedly communicated with the collecting groove (601), and the inside of the suction pipe (604) close to the collecting groove (601) is provided with a filter screen.

4. The high velocity oil injection based lubrication of the ram of a needle loom as claimed in claim 2 wherein: The inner wall of the arc-shaped block (602) is slidably connected with the surface of the piston rod of the hydraulic device (2), and the top end of the inner wall of the collecting groove (601) is provided as an inclined surface.

5. The high velocity oil injection based lubrication device for the needle punch machine piston rod as claimed in claim 3 wherein: The top of the oil storage tank (7) is fixedly connected with a high-pressure piston pump (8), the suction end of the high-pressure piston pump (8) is fixedly communicated with the oil storage tank (7), the discharge end of the high-pressure piston pump (8) is fixedly communicated with an oil delivery pipe (9), the top end of the oil delivery pipe (9) is fixedly communicated with a corrugated bifurcated pipe (10), and the two ends of the corrugated bifurcated pipe (10) penetrate through the rack (1) and are fixedly communicated with a shunt pipe (11).

6. The high velocity oil injection based lubrication of the ram of a needle loom as claimed in claim 5 wherein: The side of the shunt pipe (11) close to the mounting cavity (502) is fixedly communicated with a plurality of branch pipes (12), and the other end of the branch pipe (12) penetrates through the mounting cavity (502) and is fixedly communicated with the arc-shaped pipe (504).

7. The high velocity oil injection based lubrication device for the needle punch machine piston rod as claimed in claim 5 wherein: The inner walls of the rack (1) are fixedly connected with electric push rods (13) on both sides, and the telescopic ends of the two electric push rods (13) are oppositely arranged.

8. The high velocity oil injection based lubrication device for the needle punch machine piston rod as claimed in claim 7 wherein: The telescopic end of the electric push rod (13) is fixedly connected with a connecting block (14), and the connecting block (14) is fixedly connected to the side away from the two installation cavities (502).

9. The high velocity oil injection based lubrication of needle punch machine ram rod as claimed in claim 2 wherein: The left side of the inner wall of the top cover (501), the installation cavity (502) and the arc-shaped block (602) is provided with a sealing groove (15), and the right side of the inner wall of the top cover (501), the installation cavity (502) and the arc-shaped block (602) is fixedly connected with a rubber sealing ring (16), and the rubber sealing ring (16) is used in cooperation with the sealing groove (15).

10. The high velocity oil injection based lubrication device for the needle punch machine piston rod as claimed in claim 8 wherein: The right side of the rack (1) is fixedly provided with a controller (17), and the centrifugal pump (603), the high-pressure piston pump (8) and the electric push rod (13) are electrically connected with the controller (17).

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