An automatic needle grinding frame for needle cloth
By designing an automatic needle grinding frame for needle cloth, and using a motor to drive the needle rollers to rotate alternately, efficient and uniform grinding is achieved, solving the problem of traditional grinding relying on manual experience and improving efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG TEXWELL TEXTILE
- Filing Date
- 2026-04-30
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional pneumatic grinding machines rely on human experience for grinding results, which can easily lead to over- or under-grinding in certain areas. Furthermore, prolonged operation can cause hand fatigue for workers, reducing grinding efficiency and quality.
Design an automatic needle grinding frame for needle cloth. The motor drives the pulley to rotate the needle rollers in opposite directions. The interlacing friction of the needle teeth achieves efficient, uniform, and synchronous grinding. Sensors and limit mechanisms are used to ensure safety and reliability.
It improves grinding efficiency and quality, reduces the intensity of manual operation, and ensures the safety and reliability of the grinding process.
Smart Images

Figure CN224310286U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of textile equipment technology, and specifically relates to an automatic needle grinding frame for needle cloth. Background Technology
[0002] The raising machine is a key piece of equipment in the textile finishing process. It is mainly used to mechanically treat the surface of fabrics, hooking and pulling fibers out of the yarn to form a uniform pile layer, thereby improving the appearance, feel, and functionality of the fabric. The core component of the raising machine is a number of bent steel wire needles (also called needle teeth) installed on the peripheral wall of the needle roller. These needles hook the fibers on the surface of the fabric to form a fluffy pile layer. However, over time, the tips of the needles will wear and become blunt, reducing their ability to hook fibers, resulting in a poorer raising effect and defective products.
[0003] When the tips of the needle cloth become dull, the traditional method is to use a pneumatic needle grinding machine for polishing and maintenance. The pneumatic needle grinding machine needs to move along the axis of the needle roller for polishing. The walking speed and contact pressure are entirely controlled by the worker's feel. The polishing effect is highly dependent on human experience, and it is easy to over-polish or under-polish in some areas. Moreover, long-term operation can easily lead to worker's hand fatigue, further reducing the polishing effect and efficiency. To solve the above problems, we provide an automatic needle cloth polishing frame. Utility Model Content
[0004] The purpose of this utility model is to provide an automatic needle grinding frame for needle cloth, so as to solve the problems mentioned in the background art. The traditional method usually uses a pneumatic needle grinding machine for grinding and maintenance. The pneumatic needle grinding machine needs to move along the axial direction of the needle roller for grinding. The walking speed and contact pressure are completely controlled by the worker's feel. The grinding effect is highly dependent on human experience, which can easily lead to local over-grinding or under-grinding. Moreover, long-term operation can easily lead to worker's hand fatigue, further reducing the grinding effect and efficiency.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an automatic needle grinding frame for needle cloth, including a frame, two mounting plates are fixedly connected inside the frame, a motor is fixedly connected to the top of the mounting plates, a first pulley is fixedly connected to the output end of the motor, mounting mechanisms are provided on both sides of the top of the frame, and a control box is fixedly connected to one side of the frame.
[0006] The mounting mechanism includes a base plate, a first L-shaped support block fixedly connected to the top of the base plate, a second L-shaped support block slidably connected to the top of the base plate, a first support column and a second support column sleeved on the top of the base plate, a movable rod hinged to the top of the first support column, a limit screw fixedly connected to the top of the second support column, a fixing nut threaded onto the surface of the limit screw, an adjusting screw threaded onto the inside of the first support column, one end of the adjusting screw rotatably connected to the second L-shaped support block, two needle rollers placed between the first L-shaped support block and the second L-shaped support block, a belt sleeved on the surface of the first pulley, and the surface of the first pulley connected to the needle rollers via the belt drive.
[0007] Preferably, one end of the adjusting screw is fixedly connected to a handwheel, the surface of the adjusting screw is threadedly connected to a limit nut, one end of the movable rod is provided with a groove adapted to the limit screw, the surface of the movable rod is fixedly connected to a U-shaped plate, the bottom of the base plate is provided with a fixing plate, two mounting bolts are sleeved inside the fixing plate, the bottom of the first support column and the second support column are threadedly connected to the mounting bolts, the bottom of the second L-shaped support block is threadedly connected to an adjusting bolt, and the inside of the base plate is provided with a sliding groove adapted to the adjusting bolt.
[0008] Preferably, the top of the frame is hinged with covers on both sides, and the front of the frame is fixedly connected with panels on both sides. The internal threads of the panels are connected with limit bolts, one end of which is threaded to the cover. The bottom of the frame is bolted with casters, and the casters are equipped with locking devices.
[0009] Preferably, a Z-shaped plate is fixedly connected to the inner side of the frame, a trigger rope is fixedly connected inside the Z-shaped plate, an L-shaped plate is fixedly connected to the inner side of the frame, a sensor is fixedly connected to the front of the L-shaped plate, and the trigger end of the sensor is fixedly connected to the trigger rope.
[0010] Preferably, a rotating shaft is fixedly connected inside the needle roller, and bearing sleeves are rotatably connected to both ends of the rotating shaft. A second pulley is fixedly connected to one end of the rotating shaft, and the surface of the first pulley is connected to the second pulley via a belt.
[0011] This utility model has the following beneficial effects:
[0012] This device, by setting up a first L-shaped support block and a second L-shaped support block, allows the user to quickly clamp the bearing sleeves of different specifications of needle rollers by removing the needle rollers from the napping machine after the needle tooth tips become dull. The user then rotates the handwheel to drive the adjusting screw, moving the second L-shaped support block. Pulling one end of the movable rod engages the surface of the limiting screw, and the fixed nut limits the movable rod. Combined with the U-shaped plate, this provides stable positioning of the bearing sleeves of the two needle rollers, preventing them from shifting or detaching during rotation, significantly improving the safety and reliability of the grinding process. A belt connects the first pulley to the second pulley of the needle rollers. Starting the motor drives the two needle rollers to rotate in opposite directions. During high-speed rotation, the needle teeth on the peripheral walls of the two needle rollers interlock, and the opposing teeth rub against each other, achieving efficient and uniform synchronous grinding. This significantly improves grinding efficiency and quality while reducing manual labor intensity. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0014] Figure 2 This is a partial three-dimensional structural view of the present invention;
[0015] Figure 3 This is a partial three-dimensional structural view of the present invention;
[0016] Figure 4 This is an exploded view of a partial structure of this utility model;
[0017] Figure 5 This is a partial three-dimensional structural view of the present invention;
[0018] Figure 6 This is a utility model Figure 5 A magnified view of a portion of point A in the middle.
[0019] Reference numerals: 1. Frame; 2. Mounting plate; 3. Motor; 4. First pulley; 5. Mounting mechanism; 51. Base plate; 52. First L-shaped support block; 53. Second L-shaped support block; 54. First support column; 55. Second support column; 56. Movable rod; 57. Limiting screw; 58. Fixing nut; 59. Adjusting screw; 510. Handwheel; 511. Limiting nut; 512. Fixing plate; 513. Mounting bolt; 514. Adjusting bolt; 515. Slide groove; 516. U-shaped plate; 6. Protective cover; 7. Panel; 8. Limiting bolt; 9. Z-shaped plate; 10. Trigger rope; 11. L-shaped plate; 12. Sensor; 13. Caster wheel; 14. Control box; 15. Needle roller; 16. Belt. Detailed Implementation
[0020] The present invention will be further described in detail below with reference to the accompanying drawings.
[0021] Example 1:
[0022] refer to Figure 1-6 An automatic needle grinding frame for needle cloth includes a frame 1, two mounting plates 2 are fixedly connected inside the frame 1, a motor 3 is fixedly connected to the top of the mounting plates 2, a first pulley 4 is fixedly connected to the output end of the motor 3, mounting mechanisms 5 are provided on both sides of the top of the frame 1, and a control box 14 is fixedly connected to one side of the frame 1.
[0023] The mounting mechanism 5 includes a base plate 51, a first L-shaped support block 52 fixedly connected to the top of the base plate 51, a second L-shaped support block 53 slidably connected to the top of the base plate 51, a first support column 54 and a second support column 55 sleeved on the top of the base plate 51, a movable rod 56 hinged to the top of the first support column 54, a limit screw 57 fixedly connected to the top of the second support column 55, a fixing nut 58 threadedly connected to the surface of the limit screw 57, an adjusting screw 59 threadedly connected to the inside of the first support column 54, one end of the adjusting screw 59 rotatably connected to the second L-shaped support block 53, two needle rollers 15 are placed between the first L-shaped support block 52 and the second L-shaped support block 53, a belt 16 is sleeved on the surface of the first pulley 4, and the surface of the first pulley 4 is connected to the needle rollers 15 through the belt 16.
[0024] Specifically, the device, by setting a first L-shaped support block 52 and a second L-shaped support block 53, allows the user to directly place the bearing sleeves of two needle rollers 15 between them. Turning the handwheel 510 drives the adjusting screw 59 to move the second L-shaped support block 53, achieving rapid clamping of bearing sleeves of needle rollers 15 of different specifications. This causes the bearing sleeves of the two needle rollers 15 to abut against each other. By pulling one end of the movable rod 56 into the surface of the limiting screw 57, and using the fixing nut 58 to limit the movable rod 56, the device, in conjunction with the U-shaped plate 516, can clamp the two needle rollers 15 bearing sleeves. The bearing sleeves of each needle roller 15 form a stable limit, preventing the needle roller 15 from shifting or disengaging during rotation, which significantly improves the safety and reliability of the grinding process. The first pulley 4 and the second pulley of the needle roller 15 are connected by a belt 16. After starting the motor 3, the two needle rollers 15 can be driven to rotate in opposite directions. The needle teeth of the two needle rollers 15 are interlaced, and the needle teeth on opposite sides rub against each other, thereby achieving a highly efficient and uniform overall synchronous grinding effect, greatly improving the grinding efficiency and grinding quality, and reducing the intensity of manual operation.
[0025] refer to Figure 4One end of the adjusting screw 59 is fixedly connected to a handwheel 510, and a limit nut 511 is threadedly connected to the surface of the adjusting screw 59. One end of the movable rod 56 has a groove that matches the limit screw 57, and a U-shaped plate 516 is fixedly connected to the surface of the movable rod 56. A fixing plate 512 is provided at the bottom of the base plate 51, and two mounting bolts 513 are fitted inside the fixing plate 512. The bottoms of the first support column 54 and the second support column 55 are threadedly connected to the mounting bolts 513. The bottom of the second L-shaped support block 53 is threadedly connected to an adjusting bolt 514, and the interior of the base plate 51 has a groove that matches the adjusting screw 514. The sliding groove 515, which is compatible with the adjusting bolt 514, can lock the position of the screw after the adjusting screw 59 drives the second L-shaped support block 53 to clamp, by setting a limit nut 511, to prevent loosening during grinding. The end of the movable rod 56 has a groove that is compatible with the limit screw 57, which can quickly engage and position. The U-shaped plate 516 is fixed to the surface of the movable rod 56, which can simultaneously form a stable stop for the bearing sleeves of the two needle rollers 15. The adjusting bolt 514 passes through the sliding groove 515 of the base plate 51 and is threaded to the bottom of the second L-shaped support block 53, which can guide the second L-shaped support block 53 to move smoothly along the sliding groove 515.
[0026] refer to Figure 5 The top of the frame 1 is hinged with covers 6 on both sides, and the front of the frame 1 is fixedly connected with panels 7 on both sides. The internal threads of the panels 7 are connected with limit bolts 8, one end of which is threaded to the cover 6. The bottom of the frame 1 is bolted with casters 13, which are equipped with locking devices. The covers 6 on both sides of the top of the frame 1 cover the area of the pulleys and the drive belt 16, which can effectively prevent foreign objects from being caught in the high-speed rotating pulleys and belt 16 or causing accidental contact by personnel. One end of the limit bolts 8 inside the panels 7 is threaded to the cover 6, which can firmly lock the cover 6 in the closed position to prevent accidental opening due to vibration during operation. The casters 13 bolted to the bottom of the frame 1, together with their locking devices, can not only facilitate the overall movement of the equipment to different work positions, but also lock and fix it after it is in place, ensuring the stability of the grinding process.
[0027] refer to Figure 5 A Z-shaped plate 9 is fixedly connected to the inner side of the frame 1. A trigger rope 10 is fixedly connected inside the Z-shaped plate 9. An L-shaped plate 11 is fixedly connected to the inner side of the frame 1. A sensor 12 is fixedly connected to the front of the L-shaped plate 11. The trigger end of the sensor 12 is fixedly connected to the trigger rope 10. With the trigger rope 10, the operator can directly pull the trigger rope 10 manually when an emergency stop is required, so that the sensor 12 can quickly send a stop signal, realizing rapid manual safety intervention. This makes it convenient for the operator to quickly reach and pull the trigger rope in an emergency, without having to search for the emergency stop button, further improving the safety of the equipment.
[0028] refer to Figure 2The needle roller 15 has a rotating shaft fixedly connected inside. Both ends of the rotating shaft are rotatably connected to bearing sleeves. One end of the rotating shaft is fixedly connected to a second pulley. The surface of the first pulley 4 is connected to the second pulley via a belt 16. The belt 16 drives the first pulley 4 to be connected to the second pulley of the needle roller 15, which can drive the two needle rollers 15 to rotate in opposite directions, achieving mutual rapid grinding. The structure is simple and the transmission is reliable.
[0029] Brief description of the usage process: The user can place two needle rollers 15 between the first L-shaped support block 52 and the second L-shaped support block 53. The needle teeth of the two needle rollers 15 are interlaced. When rotating, the needle teeth rub against each other. Then, turn the handwheel 510 to drive the adjusting screw 59 to rotate. The adjusting screw 59 drives the second L-shaped support block 53 to clamp the bearing sleeves of the two needle rollers 15. Then, pull one end of the movable rod 56 to engage with the surface of the limiting screw 57. The movable rod 56 is limited by the fixing nut 58. The movable rod 56 and the U-shaped plate 516 complete the limitation of the bearing sleeves of the two needle rollers 15. The first pulley 4 is connected to the second pulley of the needle roller 15 by the belt 16. Start the motor 3 to drive the first pulley 4 to rotate. The first pulley 4 drives the needle rollers 15 to rotate through the belt 16 and the second pulley, so that the two needle rollers 15 rotate in opposite directions. This allows the two needle rollers 15 to grind each other quickly, improving the grinding efficiency.
[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. An automatic grinding frame for a needle cloth, comprising a frame (1), characterized in that: Two mounting plates (2) are fixedly connected inside the frame (1). A motor (3) is fixedly connected to the top of the mounting plate (2). A first pulley (4) is fixedly connected to the output end of the motor (3). Mounting mechanisms (5) are provided on both sides of the top of the frame (1). A control box (14) is fixedly connected to one side of the frame (1). The installation mechanism (5) includes a base plate (51), a first L-shaped support block (52) is fixedly connected to the top of the base plate (51), a second L-shaped support block (53) is slidably connected to the top of the base plate (51), a first support column (54) and a second support column (55) are sleeved on the top of the base plate (51), a movable rod (56) is hinged to the top of the first support column (54), a limit screw (57) is fixedly connected to the top of the second support column (55), a fixing nut (58) is threaded on the surface of the limit screw (57), an adjusting screw (59) is threaded on the inside of the first support column (54), one end of the adjusting screw (59) is rotatably connected to the second L-shaped support block (53), two needle rollers (15) are placed between the first L-shaped support block (52) and the second L-shaped support block (53), a belt (16) is sleeved on the surface of the first pulley (4), and the surface of the first pulley (4) is connected to the needle rollers (15) through the belt (16).
2. The automatic needle grinding frame for needle cloth according to claim 1, characterized in that: One end of the adjusting screw (59) is fixedly connected to a handwheel (510), and the surface of the adjusting screw (59) is threadedly connected to a limit nut (511). One end of the movable rod (56) is provided with a groove that matches the limit screw (57). The surface of the movable rod (56) is fixedly connected to a U-shaped plate (516). The bottom of the base plate (51) is provided with a fixing plate (512). The inside of the fixing plate (512) is fitted with two mounting bolts (513). The bottom of the first support column (54) and the second support column (55) are threadedly connected to the mounting bolts (513). The bottom of the second L-shaped support block (53) is threadedly connected to an adjusting bolt (514). The inside of the base plate (51) is provided with a sliding groove (515) that matches the adjusting bolt (514).
3. The automatic needle grinding frame for needle cloth according to claim 1, characterized in that: The top of the frame (1) is hinged with a cover (6) on both sides. The front of the frame (1) is fixedly connected with a panel (7) on both sides. The internal thread of the panel (7) is connected with a limit bolt (8). One end of the limit bolt (8) is threadedly connected to the cover (6). The bottom of the frame (1) is bolted with a caster wheel (13). The caster wheel (13) is equipped with a locking device.
4. The automatic needle grinding frame for needle cloth according to claim 1, characterized in that: A Z-shaped plate (9) is fixedly connected to the inner side of the frame (1), and a trigger rope (10) is fixedly connected inside the Z-shaped plate (9). An L-shaped plate (11) is fixedly connected to the inner side of the frame (1), and a sensor (12) is fixedly connected to the front of the L-shaped plate (11). The trigger end of the sensor (12) is fixedly connected to the trigger rope (10).
5. The automatic needle grinding frame for needle cloth according to claim 1, characterized in that: The needle roller (15) is internally fixedly connected to a rotating shaft, and both ends of the rotating shaft are rotatably connected to bearing sleeves. One end of the rotating shaft is fixedly connected to a second pulley, and the surface of the first pulley (4) is connected to the second pulley via a belt (16).