Automatic loading and feeding mechanism for long bars for bearings

Abstract

The utility model relates to an automatic loading and feeding mechanism of long bars for bearings, which comprises a plurality of fixed loading slideways and movable loading slideways which are in the shape of a right trapezoid, a plurality of vertical brackets are fixedly arranged on the rear sides of the loading slideways, a rear material channel is arranged among the brackets, and right trapezoid brackets are fixedly arranged on the rear sides of the brackets. A piston rod of a vertical lifting air cylinder is fixedly connected to the movable feeding sliding way, and the lifting air cylinder drives the movable feeding sliding way to move up and down. An inclined feeding sliding way is arranged on the rear side of the bracket, a plurality of transversely-distributed feeding wheels are arranged on the left side of the rear end of the feeding sliding way, a transverse bar is arranged on the feeding wheels, an intermediate frequency furnace is arranged on the left side of the bar, a pressing wheel assembly is arranged on the bar close to the intermediate frequency furnace, a pressing wheel is arranged on the pressing wheel assembly, and the pressing wheel elastically abuts against the upper surface of the bar. According to the mechanism, constant-speed conveying of bearing bars can be effectively controlled on the basis that the pressing wheel is matched with the feeding wheel, so that uniform heating of the bars is guaranteed, material clamping during feeding can be reduced, and the stability of the product temperature is improved.

Description

Technical Field:

[0001] The utility model relates to the technical field of bar feeding devices, and more specifically to an automatic upward feeding mechanism for long bars used in bearings. Background Art:

[0002] Currently, in the production process of bearings, bearing bars need to be conveyed into a heating device, and then the heated bars are cut into sections, and then the sectioned bars are stamped into round cakes, and then the round cakes are forged into ring-shaped castings, and after rolling and sizing, they are formed into semi-finished bearing rings. At the initial position of production, the bearing bars are generally placed on conveying wheels, and the conveying wheels are rotated to convey the bearing bars to the heating device. During the conveying process, the bearing bars need to be conveyed one by one. The conveying of the bearing bars is mainly driven by the rotation of the feeding wheel to drive the bearing bars to move. However, the long bearing bars used are not completely straight, and some of the long bars have bent parts, and the bent parts do not contact the feeding wheel, resulting in the feeding wheel idling and the long bars unable to enter the intermediate frequency furnace at a uniform speed. And the feeding of the bars in the intermediate frequency furnace is ejected based on the interaction of the subsequent bars. Since the bars on the feeding wheel cannot be conveyed at a uniform speed, the heating time of the bars in the intermediate frequency furnace is inconsistent, resulting in uneven heating of the bars. Content of the Utility Model:

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an automatic upward feeding mechanism for long bars used in bearings, which can effectively control the uniform feeding of bearing bars based on the cooperation of pressure wheels and feeding wheels, thereby ensuring uniform heating of the bars.

[0004] An automatic upward feeding mechanism for long bars used in bearings includes a plurality of fixed feeding chutes in the shape of right-angled trapezoids. A plurality of movable feeding chutes are inserted between the fixed feeding chutes. The movable feeding chute includes a front feeding channel and a rear feeding channel in the shape of right-angled trapezoids. A vertically rectangular baffle is formed between the front feeding channel and the rear feeding channel; a plurality of vertical brackets are fixedly arranged at the rear side of the fixed feeding chute. The rear feeding channel is arranged between the brackets. A support seat in the shape of a right-angled trapezoid is fixedly arranged at the rear side of the bracket. An arc-shaped groove is formed at the rear side of the support seat; a vertical piston rod of a lifting cylinder is fixedly connected to the movable feeding chute, and the lifting cylinder drives the movable feeding chute to move up and down; an inclined feeding chute is arranged at the rear side of the support seat. An inclined lever is arranged on the side wall of the feeding chute. The upper end of the lever is opposite to the groove on the support seat and is formed with a hook claw, and a hinge column is inserted in the middle. The hinge column is inserted and fixed on the feeding chute; the lower end of the lever is hinged to an inclined turning cylinder through a ball joint, and the cylinder body of the turning cylinder is hinged on the feeding chute;

[0005] On the left side of the rear end of the feeding chute, several laterally distributed feeding wheels are provided. A transverse bar stock is arranged on the feeding wheels. An intermediate frequency furnace is provided on the left side of the bar stock. A pressure wheel assembly is provided on the bar stock close to the intermediate frequency furnace. A pressure wheel is provided on the pressure wheel assembly, and the pressure wheel elastically presses against the upper surface of the bar stock.

[0006] Preferably, a limiting baffle is formed at the rear end of the feeding chute.

[0007] Preferably, the front end of the feeding chute is lower than the rear end of the support base, and the front end of the support base is higher than the upper end of the support bracket.

[0008] Preferably, feeding wheels are provided on both sides of the pressure wheel, and the feeding wheels abut against the lower surface of the bar stock.

[0009] Preferably, a rotating shaft is inserted and fixed on the pressure wheel of the pressure wheel assembly. The rotating shaft is connected with a cylindrical bearing seat through a bearing. Several obliquely arranged support arms are formed on the bearing seat. The lower end of the support arm is hinged with a hinge seat through a hinge shaft, and the hinge seat is fixed on the frame supporting the intermediate frequency furnace. A core rod perpendicular to the support arm is inserted and fixed between the support arms. Several counterweight blocks are inserted on the core rod, and the counterweight blocks press against the support arms.

[0010] Preferably, a code disk is inserted and fixed at one end of the rotating shaft away from the pressure wheel. Several identification holes are formed on the outer ring of the code disk. A photoelectric sensor is provided on one side of the code disk opposite to the identification holes;

[0011] A connecting disk is formed on one side of the bearing seat away from the pressure wheel. A mounting plate is fixedly connected to the connecting disk, and the photoelectric sensor is fixedly connected to the mounting plate.

[0012] The beneficial effects of the present utility model are as follows:

[0013] Based on the cooperation of the pressure wheel and the feeding wheel, this mechanism can effectively control the uniform feeding of the bearing bar stock, thereby ensuring the uniform heating of the bar stock, reducing feeding jamming, and improving the stability of the product temperature. Description of the drawings:

[0014] Figure 1 It is a side view schematic diagram of the feeding mechanism part of the present utility model;

[0015] Figure 2 It is a front view schematic diagram of the feeding mechanism part of the present utility model;

[0016] Figure 3 It is a three-dimensional structure schematic diagram of the pressure wheel assembly of the present utility model;

[0017] Figure 4 It is a side view structure schematic diagram of the pressure wheel assembly of the present utility model.

[0018] In the figure: 1. Fixed loading chute; 2. Movable loading chute; 3. Lifting cylinder; 4. Bracket; 5. Support base; 6. Feeding chute; 7. Pressure wheel assembly; 8. Feeding wheel; 9. Medium-frequency furnace; 10. Bar stock; 11. Poking rod; 12. Hinged column; 13. Tipping cylinder. Detailed implementation method:

[0019] Example: As shown in Figure 1 、 2 Figure, an automatic upward feeding mechanism for long bar stock used in bearings includes a loading mechanism and a feeding mechanism. The loading mechanism includes several fixed loading chutes 1 in the shape of right-angled trapezoids. Between the fixed loading chutes 1, several movable loading chutes 2 are inserted. The movable loading chute 2 includes a front material channel 21 and a rear material channel 23 in the shape of right-angled trapezoids. A vertical rectangular stop block 22 is formed between the front material channel 21 and the rear material channel 23; several vertical brackets 4 are fixedly arranged at the rear side of the fixed loading chute 1. The rear material channel 23 is arranged between the brackets 4. A support base 5 in the shape of a right-angled trapezoid is fixedly arranged at the rear side of the bracket 4. An arc-shaped groove 51 is formed at the rear side of the support base 5; The piston rod of a vertical lifting cylinder 3 is fixedly connected to the movable loading chute 2. The lifting cylinder 3 drives the movable loading chute 2 to move up and down; An inclined feeding chute 6 is arranged at the rear side of the support base 5. An inclined poking rod 11 is arranged on the side wall of the feeding chute 6. The upper end of the poking rod 11 faces the groove 51 on the support base 5 and forms a hook claw 111. The middle part of the poking rod 11 is inserted with a hinged column 12, and the hinged column 12 is inserted and fixed on the feeding chute 6; The lower end of the poking rod 11 is hinged with an inclined tipping cylinder 13 through a spherical eye joint, and the cylinder body of the tipping cylinder 13 is hinged on the feeding chute 6;

[0020] The feeding mechanism includes a feeding wheel 8. Several horizontally distributed feeding wheels 8 are arranged on the left side at the rear end of the feeding chute 6. A horizontal bar stock 10 is arranged on the feeding wheel 8. A medium-frequency furnace 9 is arranged on the left side of the bar stock 10. A pressure wheel assembly 7 is arranged on the bar stock 10 close to the medium-frequency furnace 9. A pressure roller 71 is arranged on the pressure wheel assembly 7, and the pressure roller 71 elastically presses against the upper surface of the bar stock 10.

[0021] A limiting baffle 61 is formed at the rear end of the feeding chute 6, and the limiting baffle 61 can prevent the bar stock 10 from falling from the rear end of the feeding chute 6.

[0022] The front end of the feeding chute 6 is lower than the rear end of the support base 5, and the front end of the support base 5 is higher than the upper end of the bracket 4. By jacking up the bar stock with the movable loading chute 2, the upper beam can be carried out, and the bar stocks that can be abutted against each other can be separated to realize the subsequent single-bar stock feeding.

[0023] Feeding wheels 8 are arranged on both sides of the pressure roller 71. The feeding wheels 8 abut against the lower surface of the bar stock 10. The two groups of feeding wheels 8 cooperate with the pressure roller 71 to clamp the bar stock 10, which is convenient for the bar stock 10 to break away and is convenient for aligning with the furnace mouth of the medium-frequency furnace 9.

[0024] See Figure 3 、 4 As shown, a rotating shaft 72 is inserted and fixed on the material pressing wheel 71 of the pressing wheel assembly 7. The rotating shaft 72 is connected with a cylindrical bearing seat 73 through a bearing. A plurality of obliquely arranged support arms 732 are formed on the bearing seat 73. The lower end of the support arm 732 is hinged with a hinge seat 74 through a hinge shaft. The hinge seat 74 is fixed on the frame of the intermediate frequency furnace 9. A core rod 75 perpendicular to the support arm 732 is inserted and fixed between the support arms 732. A plurality of counterweight blocks 76 are sleeved on the core rod 75. The counterweight blocks 76 are pressed against the support arms 732. The material pressing wheel 71 is elastically pressed on the bar stock 10 based on the gravity of the counterweight blocks 76.

[0025] One end of the rotating shaft 72 away from the material pressing wheel 71 is inserted and fixed with a code disk 77. A plurality of identification holes 771 are formed on the outer ring of the code disk 77. A photoelectric sensor 79 is arranged on one side of the code disk 77 opposite to the identification holes 771. The photoelectric sensor 79 can detect the identification holes 771 of the code disk 77. When not detected, it means that the material pressing wheel 71 does not rotate, and thus the intermediate frequency furnace 9 is short of materials, reminding to feed materials.

[0026] A connecting disk 731 is formed on one side of the bearing seat 73 away from the material pressing wheel 71. An installation plate 78 is fixedly connected to the connecting disk 731. The photoelectric sensor 79 is fixedly connected to the installation plate 78. A notch opposite to the code disk 77 is formed on the installation plate 78, and the code disk 77 is inserted into the notch.

[0027] Working principle: This solution is an automatic feeding mechanism for long bar stocks used in bearings. The mechanism includes a feeding mechanism and a material feeding mechanism. The feeding mechanism can transport a single bar stock to the feeding wheel 8 of the material feeding mechanism.

[0028] A material pressing wheel 71 is arranged between the feeding wheels 8 on the material feeding mechanism. The material pressing wheel 71 cooperates with the feeding wheel 8 to overcome the problem that the bar stock is bent and does not contact the feeding wheel 8, ensuring the uniform feeding of the bar stock 10, thereby controlling the uniform movement of the bar stock 10 in the intermediate frequency furnace 9 and realizing uniform heating.

[0029] The embodiments are used to illustrate the present invention by way of example, rather than to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of the rights protection of the present invention should be as listed in the claims of the present invention.

Claims

1. An automatic feeding mechanism for long bar materials used in bearings, comprising a number of fixed feeding chutes (1) in the shape of right-angled ladders. A number of movable feeding chutes (2) are inserted between the fixed feeding chutes (1). The movable feeding chute (2) includes a front feeding channel (21) and a rear feeding channel (23) in the shape of right-angled ladders. A vertical rectangular stop block (22) is formed between the front feeding channel (21) and the rear feeding channel (23). A number of vertical brackets (4) are fixedly arranged at the rear side of the fixed feeding chute (1). The rear feeding channel (23) is arranged between the brackets (4). A right-angled ladder-shaped support base (5) is fixedly arranged at the rear side of the bracket (4). An arc-shaped groove (51) is formed at the rear side of the support base (5). A piston rod of a vertical lifting cylinder (3) is fixedly connected to the movable feeding chute (2). The lifting cylinder (3) drives the movable feeding chute (2) to move up and down. It is characterized in that: On the rear side of the bracket (5), there is an obliquely arranged feeding chute (6). On the side wall of the feeding chute (6), there is an obliquely arranged shifting rod (11). The upper end of the shifting rod (11) faces the groove (51) on the bracket (5) and is formed with a hook claw (111). The middle part is inserted with a hinge column (12), and the hinge column (12) is inserted and fixed on the feeding chute (6). The lower end of the shifting rod (11) is hinged with an obliquely arranged turning cylinder (13) through a ball eye joint, and the cylinder body of the turning cylinder (13) is hinged on the feeding chute (6). On the left side at the rear end of the feeding chute (6), several horizontally distributed feeding wheels (8) are arranged. There is a horizontal bar stock (10) on the feeding wheels (8). On the left side of the bar stock (10), there is an intermediate frequency furnace (9). On the bar stock (10) near the intermediate frequency furnace (9), there is a pressure wheel assembly (7). There is a pressure wheel (71) on the pressure wheel assembly (7), and the pressure wheel (71) elastically presses against the upper surface of the bar stock (10).

2. The automatic feeding mechanism for long bar materials used in bearings according to claim 1, characterized in that: A limiting baffle (61) is formed at the rear end of the feeding chute (6).

3. The automatic feeding mechanism for long bar materials used in bearings according to claim 1, characterized in that: The front end of the feeding chute (6) is lower than the rear end of the bracket (5), and the front end of the bracket (5) is higher than the upper end of the support (4).

4. The automatic feeding mechanism for long bar materials used in bearings according to claim 1, characterized in that: There are feeding wheels (8) on both sides of the pressure wheel (71), and the feeding wheels (8) abut against the lower surface of the bar stock (10).

5. The automatic feeding mechanism for long bar materials used in bearings according to claim 4, characterized in that: A rotating shaft (72) is inserted and fixed on the pressure wheel (71) of the pressure wheel assembly (7). The rotating shaft (72) is connected with a cylindrical bearing seat (73) through a bearing. Several obliquely arranged support arms (732) are formed on the bearing seat (73). The lower end of the support arm (732) is hinged with a hinge seat (74) through a hinge shaft, and the hinge seat (74) is fixed on the frame supporting the intermediate frequency furnace (9). A core rod (75) perpendicular to the support arm (732) is inserted and fixed between the support arms (732). Several counterweight blocks (76) are sleeved on the core rod (75), and the counterweight blocks (76) press against the support arm (732).

6. The automatic feeding mechanism for long bar stock used in bearings according to claim 5, characterized in that: A code disk (77) is inserted and fixed at one end of the rotating shaft (72) away from the pressure wheel (71). Several identification holes (771) are formed on the outer circle of the code disk (77). There is an optoelectronic sensor (79) on one side of the code disk (77) opposite to the identification holes (771). A connecting disk (731) is formed on one side of the bearing seat (73) away from the pressure wheel (71). A mounting plate (78) is fixedly connected to the connecting disk (731), and the optoelectronic sensor (79) is fixedly connected to the mounting plate (78).

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