An adjustable needle sorting machine feed structure

Abstract

The utility model relates to needle sorting machine technical field, especially adjustable needle sorting machine feeding structure, including frame, the distribution tray of rotation connection in the upper end of frame, the big cover plate and small cover plate of fixed connection in the upper end of frame and located distribution tray outside, fixed connection in the upper end of frame one corner's double -channel feeder, install in the needle tube support assembly of small cover plate, still include two groups of movable push needle subassembly, camshaft subassembly and push needle mould part, camshaft subassembly through drive push needle subassembly reciprocating movement, with the rotation movement of push needle mould part cooperates to control needle tube support assembly and realize uniform speed unloading, the utility model discloses adopt camshaft drive push needle subassembly, and with push needle mould rotation release mechanism and distribution tray precision linkage, cooperate tension spring quick reset, realize up to 800 needle's continuous accurate feeding per minute, and the feeding speed can be steplessly changed through the adjustment motor speed, and the key parameter can be fine tuning, and it is convenient for adaptation different specifications needle.

Description

Technical Field

[0001] This utility model relates to the field of needle roller sorting machine technology, and in particular to an adjustable needle roller sorting machine feeding structure. Background Technology

[0002] As a key basic component in precision machinery, the manufacturing quality of needle roller bearings directly affects the performance and lifespan of the main equipment. In the production process of needle rollers, sorting is one of the core processes to ensure their dimensional consistency and geometric accuracy. Efficiently and accurately feeding bulk needle rollers one by one or in quantitative quantities into the sorting station (such as the mold cavity of the sorting plate) is a prerequisite for realizing automated high-speed sorting. Traditional needle roller feeding methods have the following main defects: (1) It is difficult to balance the feeding rate and accuracy, and the efficiency bottleneck is prominent: Many existing equipment use vibratory feeders or simple gravity slides for feeding. Although vibratory feeders can achieve directional arrangement, their feeding cycle is limited by the vibration frequency and the fluidity of the needle rollers on the track, making it difficult to achieve an ultra-high cycle of more than 100 pieces per minute. Moreover, the feeding stability is prone to decline under long-term high-speed operation, and it is easy to cause jamming, excess material or empty material, which affects the continuity of sorting. Gravity slide feeding relies more on the weight of the needle rollers, making speed difficult to control precisely. It is also prone to blockage or uneven feeding due to friction and collision between the needle rollers. (2) Inaccurate timing and poor feeding reliability: The synchronization between the traditional feeding mechanism and the rotation of the distribution plate often relies on simple mechanical linkage or timing relay control, which has limited coordination accuracy. When running at high speed, a slight deviation between the feeding action and the arrival time of the distribution plate mold cavity will cause the needle rollers to fail to fall into the mold cavity accurately, resulting in missing parts or impacts on the edge of the distribution plate, producing waste needles or even damaging the equipment. This instability in timing is a key factor limiting the improvement of feeding speed. (3) Complex structure and difficult adjustment and maintenance: In order to realize the feeding function, some complex devices use multiple sets of cylinders, connecting rods, solenoid valves and other components to work together. Such pneumatic or electric composite mechanisms not only have high initial costs, but also require complicated debugging. Once it is necessary to adjust the feeding stroke, speed or timing according to the specifications of the needle rollers (such as slight changes in length and diameter), it is often necessary to adjust the physical position of multiple components or reprogram the parameters. The adjustment process is time-consuming and laborious, requires high technical skills from operators, and increases downtime, affecting production efficiency; (4) Insufficient adaptability and poor versatility: Most feeding structures are designed for specific specifications of needle rollers. When the product is changed, a large number of replacements or modifications are required from the feeding channel, push rod stroke to the blocking mechanism, resulting in insufficient equipment flexibility. In the production mode of small batch and multiple varieties, this will cause huge tooling switching costs and time waste.

[0003] Therefore, in view of the shortcomings of the existing devices, such as difficulty in balancing feeding speed and accuracy, poor timing synchronization, complex mechanism and difficulty in adjustment, weak adaptability and poor versatility, resulting in low sorting efficiency, insufficient stability and high replacement cost, an adjustable needle roller sorting machine feeding structure can be designed. Through innovative mechanical linkage design and integrated layout, it can achieve ultra-high cycle time, precise timing control, easy adjustment and good versatility. Utility Model Content

[0004] In order to overcome the shortcomings of existing devices, such as difficulty in balancing feeding speed and accuracy, poor timing synchronization, complex mechanism and difficulty in adjustment, weak adaptability and poor versatility, resulting in low sorting efficiency, insufficient stability and high replacement cost.

[0005] The technical solution of this utility model is as follows: an adjustable needle roller sorting machine feeding structure, including a frame, a sorting disc rotatably connected to the upper end of the frame, a large cover plate and a small cover plate fixedly connected to the upper end of the frame and located outside the sorting disc, a dual-channel feeder fixedly connected to one corner of the upper end of the frame, a needle drop tube support assembly installed in the small cover plate, and two sets of movable push needle assemblies, a camshaft assembly and a push needle mold component. The camshaft assembly drives the push needle assembly to reciprocate, so as to cooperate with the rotational movement of the push needle mold component, thereby controlling the needle drop tube support assembly to achieve uniform feeding. The push needle mold component includes a feeding mechanism base plate, two sets of right push needle blocking blocks and left push needle blocking blocks fixedly connected to the upper end of the feeding mechanism base plate, a limiting member disposed between the right push needle blocking block and the left push needle blocking block, and a tension spring disposed between the limiting member and the right push needle blocking block.

[0006] Preferably, the needle rollers enter the needle drop tube support assembly from the hopper of the dual-channel feeder via the discharge pipe. Under the action of the camshaft assembly, the limiting member and the left push needle blocking block form a rotational connection. Therefore, when pushed, the limiting member will rotate around the axis. This rotational action temporarily releases the blocking structure originally composed of the limiting member, the right push needle blocking block, and the tension spring. The tension spring is stretched at this time, storing elastic potential energy. The base plate of the feeding mechanism serves as the mounting base for the entire push needle mold component. The needle rollers cooperate with the corresponding mold cavity of the distribution plate and are pushed into the distribution plate to complete one feeding cycle. Under the action of the elastic restoring force stored in the tension spring, the stretched tension spring pulls the limiting member to rotate in the opposite direction around the axis, returning to the initial position and forming a stable block with the right push needle blocking block again, waiting for the next working cycle.

[0007] Preferably, the needle tube support assembly includes a needle tube mounting base, two sets of guide tubes fixedly connected to the upper end of the needle tube mounting base, and a needle tube mounting component fixedly connected to the end of the guide tubes.

[0008] Preferably, there are two guide needle tubes, and a discharge pipe is provided between the guide needle tubes and the discharge port of the dual-channel feeder hopper.

[0009] Preferably, the pusher assembly includes a linear guide rail, a pusher mounting block slidably connected to the upper end of the linear guide rail, a cam follower mounted on the lower end of the pusher mounting block, and a pusher body and a stop block fixedly connected to the front and rear sides of the upper end of the pusher mounting block.

[0010] Preferably, the pusher die component also includes a blocking block shaft and a positioning pin. The blocking block shaft is installed on the upper end of the left pusher blocking block and is rotatably connected to the limiting member. Two sets of positioning pins are provided, which are respectively installed on the upper ends of the limiting member and the right pusher blocking block. The two ends of the tension spring are respectively hung on the rod of the corresponding positioning pin.

[0011] Preferably, the camshaft assembly includes a mounting bracket fixedly connected to the lower end of the top plate of the frame, two sets of pusher bearing seats installed in the top plate of the frame, a pusher rotating shaft rotatably connected in the pusher bearing seats, a timing pulley installed on the outside of the pusher rotating shaft, a timing belt installed on the outside of the two sets of timing pulleys, a motor fixedly connected to the lower end of the mounting bracket, and a pusher cam fixedly connected to the upper end of the pusher rotating shaft.

[0012] Preferably, the motor is connected to the lower end of the pusher pin rotating shaft, and the pusher pin cam fits against the outer contour of the cam follower.

[0013] The beneficial effects of this utility model are as follows: The camshaft drives the pusher assembly, which is precisely linked with the pusher die rotation release mechanism and the distribution plate. Rigid mechanical transmission ensures that the pushing action is strictly synchronized with the distribution plate mold cavity. Combined with the rapid reset of the tension spring, it achieves continuous and precise feeding of up to 800 rollers per minute, greatly improving sorting efficiency. This highly integrated structure features core moving parts with high rigidity and low wear design, strong anti-interference capabilities, and stable and reliable long-term operation. The feeding speed can be steplessly changed by adjusting the motor speed to adapt to different production cycles. Key parameters such as the cam phase angle, limit component angle, and tension spring preload can be finely adjusted to easily adapt to different specifications of rollers. The dual-channel parallel design achieves synchronous feeding, not only multiplying the feeding quantity but also balancing the force through a symmetrical layout, ensuring high-speed and stable operation. The overall structure is compact, easy to adjust and maintain, and significantly improves the equipment's versatility and production efficiency. Attached Figure Description

[0014] Figure 1 The diagram shown is a first three-dimensional structural schematic of the adjustable needle roller separator feeding structure of this utility model.

[0015] Figure 2 The diagram shows a three-dimensional structural representation of the needle tube support assembly and camshaft assembly in the adjustable needle roller separator feeding structure of this utility model.

[0016] Figure 3 The diagram shown is a three-dimensional structural schematic of the pusher die component in the adjustable needle roller sorting machine feeding structure of this utility model.

[0017] Figure 4 The diagram shown is a three-dimensional structural schematic of the pusher assembly in the feeding structure of the adjustable needle roller sorter of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Frame; 201. Needle tube mounting base; 202. Guide needle tube; 203. Needle tube mounting component; 301. Linear guide rail; 302. Cam follower; 303. Push rod mounting block; 304. Push rod body; 305. Stop block; 401. Feeding mechanism base plate; 402. Right push needle blocking block; 403. Left push needle blocking block; 404. Limiting component; 405. Block shaft; 406. Tension spring; 407. Positioning pin; 5. Distributor plate; 6. Large cover plate; 7. Small cover plate; 8. Dual-channel feeder; 901. Mounting bracket; 902. Push needle bearing seat; 903. Push needle rotating shaft; 904. Synchronous pulley; 905. Synchronous belt; 906. Motor; 907. Push needle cam. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please see Figures 1-4 This utility model provides an embodiment: an adjustable needle roller sorting machine feeding structure, including a frame 1, a distributing disc 5 rotatably connected to the upper end of the frame 1, a large cover plate 6 and a small cover plate 7 fixedly connected to the upper end of the frame 1 and located outside the distributing disc 5, a dual-channel feeder 8 fixedly connected to one corner of the upper end of the frame 1, and a needle drop tube support assembly installed in the small cover plate 7. It also includes two sets of movable needle pusher assemblies, a camshaft assembly, and a needle pusher mold component. The camshaft assembly drives the needle pusher... The needle assembly reciprocates to coordinate with the rotational movement of the needle pusher die component, thereby controlling the needle drop tube support assembly to achieve uniform feeding. The needle pusher die component includes a feeding mechanism base plate 401, two sets of right needle pusher blocking blocks 402 and left needle pusher blocking blocks 403 fixedly connected to the upper end of the feeding mechanism base plate 401, a limiting member 404 disposed between the right needle pusher blocking block 402 and the left needle pusher blocking block 403, and a tension spring 406 disposed between the limiting member 404 and the right needle pusher blocking block 402.

[0021] The needle tube support assembly includes a needle tube mounting base 201, two sets of guide tubes 202 fixedly connected to the upper end of the needle tube mounting base 201, and a needle tube mounting component 203 fixedly connected to the end of the guide tubes 202. There are two guide tubes 202, and a discharge pipe is provided between the guide tubes 202 and the discharge port of the dual-channel feeder 8 hopper.

[0022] Meanwhile, the pusher assembly includes a linear guide rail 301, a pusher mounting block 303 slidably connected to the upper end of the linear guide rail 301, a cam follower 302 mounted on the lower end of the pusher mounting block 303, and a pusher body 304 and a stop block 305 fixedly connected to the front and rear sides of the upper end of the pusher mounting block 303.

[0023] In addition, the pusher die component also includes a blocking block shaft 405 and a positioning pin 407. The blocking block shaft 405 is installed on the upper end of the left pusher blocking block 403 and is rotatably connected to the limiting member 404. Two sets of positioning pins 407 are provided, which are respectively installed on the upper ends of the limiting member 404 and the right pusher blocking block 402. The two ends of the tension spring 406 are respectively hung on the rods of the corresponding positioning pins 407.

[0024] In addition, the camshaft assembly includes a mounting bracket 901 fixedly connected to the lower end of the top plate of the frame 1, two sets of pusher bearing seats 902 installed in the top plate of the frame 1, a pusher rotating shaft 903 rotatably connected in the pusher bearing seats 902, a synchronous pulley 904 installed on the outside of the pusher rotating shaft 903, a synchronous belt 905 installed on the outside of the two sets of synchronous pulleys 904, a motor 906 fixedly connected to the lower end of the mounting bracket 901, and a pusher cam 907 fixedly connected to the upper end of the pusher rotating shaft 903. The motor 906 is connected to the lower end of the pusher rotating shaft 903 for transmission, and the pusher cam 907 fits against the outer contour of the cam follower 302.

[0025] During operation, the needle rollers are fed from the hopper of the dual-channel feeder 8. The needle rollers enter the needle drop tube support assembly through the discharge pipe. The needle rollers are guided by the guide tube 202 in the needle drop tube mounting part 203. Finally, from the outlet, under the control of gravity and device timing, they fall into the push needle mold component in sequence. The entire device is protected and supported by the outer large cover plate 6 and small cover plate 7.

[0026] When the motor 906 starts, it drives the connected pusher pin rotating shaft 903 to rotate. Through the transmission of the synchronous pulley 904 and the synchronous belt 905, the power is transmitted to the pusher pin rotating shaft 903 on the other side, ensuring that the two sets of pusher pin cams 907 rotate synchronously. The rotation of the pusher pin cam 907 is the power source of the entire working cycle.

[0027] When the protruding part of the pusher cam 907 rotates to contact the cam follower 302 of the pusher assembly, it begins to push the cam follower 302. The cam follower 302 drives the pusher mounting block 303 to slide along the linear guide rail 301. The pusher body 304 and the stop block 305 fixed on the pusher mounting block 303 move forward synchronously.

[0028] The advancing push rod body 304 contacts and pushes the limiting member 404. At the same time, the stop block 305 acts as a limit, controlling the moving distance of the push rod body 304. As the push rod body 304 moves forward, the limiting member 404 forms a rotatable connection with the left push pin blocking block 403 through the blocking block shaft 405. Therefore, when pushed, the limiting member 404 will rotate around the shaft. This rotation action temporarily releases the blocking structure originally composed of the limiting member 404, the right push pin blocking block 402 and the tension spring 406. The two ends of the tension spring 406 are respectively hung on the positioning pins 407 at the upper ends of the limiting member 404 and the right push pin blocking block 402. At this time, it is stretched and stores elastic potential energy. The feeding mechanism base plate 401 serves as the mounting base for the entire push pin mold component.

[0029] The roller needle engages with the corresponding mold cavity of the distribution plate 5 and is pushed into the distribution plate 5 to complete one feeding cycle. As the pusher cam 907 continues to rotate, its protruding part leaves the cam follower 302. Under the action of the elastic restoring force stored in the tension spring 406, the stretched tension spring 406 pulls the limiting member 404 to rotate in the opposite direction around the axis and return to the initial position, forming a stable block with the right pusher blocking block 402 again. At the same time, the pusher mounting block 303 slides backward and resets on the linear guide rail 301. The entire pusher assembly and pusher mold component return to the initial blocking state, waiting for the next working cycle of the pusher cam 907.

[0030] Through the above steps, a camshaft drives the pusher assembly, which is precisely linked with the pusher die rotation release mechanism and the material distribution plate 5. Rigid mechanical transmission ensures that the pushing action is strictly synchronized with the mold cavity of the material distribution plate 5. With the help of the tension spring 406 for rapid reset, continuous and precise feeding of up to 800 rollers per minute is achieved, greatly improving sorting efficiency. This structure is highly integrated, and the core moving parts adopt a high-rigidity, low-wear design, with strong anti-interference ability and long-term stable and reliable operation. The feeding speed can be steplessly changed by adjusting the speed of the motor 906 to adapt to different production cycles. Key parameters such as the cam phase angle, the angle of the limit component 404, and the preload of the tension spring 406 can all be finely adjusted to facilitate the adaptation of rollers of different specifications. The dual-channel parallel design achieves synchronous feeding, which not only multiplies the feeding quantity but also balances the force of the mechanism through a symmetrical layout, ensuring high-speed and stable operation. The overall structure is compact, easy to adjust and maintain, and significantly improves the versatility and production efficiency of the equipment, thus solving existing problems.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An adjustable needle roller separator feeding structure, comprising a frame (1), a distribution plate (5) rotatably connected to the upper end of the frame (1), a large cover plate (6) and a small cover plate (7) fixedly connected to the upper end of the frame (1) and located outside the distribution plate (5), a dual-channel feeder (8) fixedly connected to one corner of the upper end of the frame (1), and a needle drop tube support assembly installed in the small cover plate (7), characterized in that: It also includes two sets of movable pusher assembly, camshaft assembly and pusher mold component. The camshaft assembly drives the pusher assembly to move back and forth to cooperate with the rotational movement of the pusher mold component, thereby controlling the needle tube support assembly to achieve uniform feeding. The pusher mold component includes a feeding mechanism base plate (401), two sets of right pusher blocking blocks (402) and left pusher blocking blocks (403) fixedly connected to the upper end of the feeding mechanism base plate (401), a limiting member (404) disposed between the right pusher blocking block (402) and the left pusher blocking block (403), and a tension spring (406) disposed between the limiting member (404) and the right pusher blocking block (402).

2. The adjustable needle roller separator feeding structure according to claim 1, characterized in that: The needle tube support assembly includes a needle tube mounting base (201), two sets of guide tubes (202) fixedly connected to the upper end of the needle tube mounting base (201), and a needle tube mounting component (203) fixedly connected to the end of the guide tube (202).

3. The adjustable needle roller separator feeding structure according to claim 2, characterized in that: There are two guide needle tubes (202), and a discharge pipe is provided between the guide needle tubes (202) and the discharge port of the hopper of the dual-channel feeder (8).

4. The adjustable needle roller separator feeding structure according to claim 1, characterized in that: The pusher assembly includes a linear guide (301), a pusher mounting block (303) slidably connected to the upper end of the linear guide (301), a cam follower (302) mounted on the lower end of the pusher mounting block (303), and a pusher body (304) and a stop block (305) fixedly connected to the front and rear sides of the upper end of the pusher mounting block (303).

5. The adjustable needle roller separator feeding structure according to claim 1, characterized in that: The pusher die component also includes a blocking block shaft (405) and a positioning pin (407). The blocking block shaft (405) is installed on the upper end of the left pusher blocking block (403) and is rotatably connected to the limiting member (404). There are two sets of positioning pins (407), which are respectively installed on the upper ends of the limiting member (404) and the right pusher blocking block (402). The two ends of the tension spring (406) are respectively hung on the rod of the corresponding positioning pin (407).

6. The adjustable needle roller separator feeding structure according to claim 1, characterized in that: The camshaft assembly includes a mounting bracket (901) fixedly connected to the lower end of the top plate of the frame (1), two sets of pusher bearing seats (902) installed in the top plate of the frame (1), a pusher rotating shaft (903) rotatably connected in the pusher bearing seats (902), a synchronous pulley (904) installed on the outside of the pusher rotating shaft (903), a synchronous belt (905) installed on the outside of the two sets of synchronous pulleys (904), a motor (906) fixedly connected to the lower end of the mounting bracket (901), and a pusher cam (907) fixedly connected to the upper end of the pusher rotating shaft (903).

7. The adjustable needle roller separator feeding structure according to claim 6, characterized in that: The motor (906) is connected to the lower end of the pusher pin rotating shaft (903) for transmission, and the pusher pin cam (907) fits against the outer contour of the cam follower (302).

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