CN210615931U

CN210615931U - Fixed-length feeding propeller

Info

Publication number: CN210615931U
Application number: CN201921300311.4U
Authority: CN
Inventors: 叶会卿; 吴炳堃; 邢玉超
Original assignee: Luoyang Rencheng Bearing Parts Co ltd
Current assignee: Luoyang Rencheng Bearing Parts Co ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-05-26
Anticipated expiration: 2029-08-12

Abstract

The utility model provides a fixed-length feeding propeller, which relates to the technical field of bearing processing, and comprises a pair of feeding disks, a transmission mechanism, a ratchet wheel, a rocker, a pawl and a reciprocating driving mechanism, wherein the pair of feeding disks drive long-strip-shaped materials to be fed by means of friction force during rotation, the transmission mechanism is used for driving the pair of feeding disks to rotate along opposite circumferential directions, the ratchet wheel is fixedly connected with the input end of the transmission mechanism, the rocker can swing in a reciprocating manner around the axis of the ratchet wheel, the pawl is hinged to the rocker and is used for driving the ratchet wheel to rotate in a single direction, and the; the utility model discloses an adopt the connection driving method of ratchet and pawl etc. transmission stable in structure to pawl and the difficult wearing and tearing of ratchet make the fixed length feeding that this fixed length feeding propeller not only can be stable, long service life moreover, fixed length feeding precision is high, has improved product quality.

Description

Fixed-length feeding propeller

Technical Field

The utility model relates to a bearing processing technology field specifically is a fixed length feeding propeller.

Background

The rolling bearing generally comprises an outer ring, an inner ring, a rolling body and a retainer. Rolling bearings are classified into ball bearings and roller bearings according to the shape of the rolling elements.

In the course of working to the rolling element of antifriction bearing, need carry out the propelling movement through fixed length feeding propeller with materials such as long banding alloy, the cooperation shutdown mechanism cuts off into isometric rolling element blank, but the mode of current adoption cam mechanism carrying out the fixed length feeding can cause the not in place condition of transmission easily because the cam is very easily worn and torn, makes materials such as long banding alloy when the fixed length feeding, is difficult to guarantee the unanimity of length.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixed length feeding propeller aims at solving the mode that adopts cam mechanism to carry out the fixed length feeding among the prior art, can cause the not in place condition of transmission easily because the cam very easily wears and teares, makes materials such as long banding alloy when the fixed length feeding, is difficult to the problem of the unanimity of assurance length.

In order to achieve the above purpose, the utility model adopts the following technical scheme: fixed length feeding propeller includes:

a pair of feeding disks for driving the strip-shaped materials to be fed by means of friction force during rotation;

the transmission mechanism is used for driving the pair of feeding disks to rotate along opposite circumferential directions;

the ratchet wheel is fixedly connected with the input end of the transmission mechanism;

a rocker arm which can swing back and forth around the axis of the ratchet wheel;

the pawl is hinged to the rocker and used for driving the ratchet wheel to rotate in one direction;

and the reciprocating driving mechanism is used for driving the rocker to swing in a reciprocating manner.

The reciprocating driving mechanism comprises a connecting rod hinged on the rocker, a rotating rod hinged at the other end of the connecting rod and a motor used for driving the rotating rod to rotate.

The reciprocating driving mechanism comprises an electric telescopic rod, the movable end of the electric telescopic rod is hinged to the rocker, and the other end of the electric telescopic rod is hinged to the mounting seat.

The transmission mechanism comprises at least two gears which are meshed with each other, wherein one gear is coaxially and fixedly connected with the ratchet wheel, and the rotating speeds of the two gears which are coaxially and fixedly connected with the pair of feeding disks are equal.

The transmission mechanism comprises a driving gear which is coaxially and fixedly connected with the ratchet wheel and one of the feeding disks and a driven gear which is coaxially and fixedly connected with the other feeding disk.

The circumference end face of the feeding disc is provided with a groove, and the strip-shaped material penetrates through the middle of the pair of feeding discs and is clamped into the groove.

The straightening mechanism is used for straightening the long strip materials before the long strip materials enter the pair of feeding disks.

The straightening mechanism comprises at least two straightening wheels which are rotatably sleeved on the column body, and the adjacent straightening wheels are arranged in a staggered mode from front to back.

And the circumferential end surface of the straightening wheel is provided with an annular groove for clamping the strip-shaped material.

The upper part and the lower part of the column body are respectively provided with an external thread, and the upper side and the lower side of the straightening wheel are respectively provided with a pressing sheet contacted with the straightening wheel and a nut contacted with the pressing sheet.

The utility model has the advantages that: the utility model discloses an adopt the connection driving method of ratchet and pawl etc. transmission stable in structure to pawl and the difficult wearing and tearing of ratchet make the fixed length feeding that this fixed length feeding propeller not only can be stable, long service life moreover, fixed length feeding precision is high, has improved product quality.

Drawings

Fig. 1 is a front view of embodiment 1 of a fixed-length feed pusher.

Fig. 2 is a rear view of fig. 1.

Fig. 3 is a top view of fig. 1.

FIG. 4 is an enlarged view of I in FIG. 1.

Fig. 5 is a front view of embodiment 2 of the fixed-length feed pusher.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

Example 1

As shown in fig. 1-3, a fixed-length feeding propeller comprises a pair of feeding disks 7 for driving a long-strip-shaped material to be fed by means of friction force during rotation, a transmission mechanism 6 for driving the pair of feeding disks 7 to rotate along opposite circumferential directions, a ratchet 2 fixedly connected with an input end of the transmission mechanism 6, a rocker 3 capable of swinging back and forth around an axis of the ratchet 2, a pawl 4 hinged to the rocker 3 and used for driving the ratchet 2 to rotate in a single direction, and a reciprocating driving mechanism 5 used for driving the rocker 3 to swing back and forth, wherein the feeding disks 7 are rotatably mounted on a frame 1, and the long-strip-shaped material passes through the middle positions of the pair of feeding disks 7 and is simultaneously contacted with the circumferential end faces of the pair of feeding disks 7.

When a long strip material (such as a long strip cylindrical alloy piece) needs to be fed in a fixed length manner, the reciprocating driving mechanism 5 is started through an external switch, so that the rocker 5 swings back and forth around the axis of the ratchet 2, as shown in fig. 1, when the rocker 3 swings towards the left side, because the pawl 4 at the moment is clamped into the pawl groove on the ratchet 2, the pawl 4 swinging towards the left side along with the rocker 3 rotates anticlockwise against the ratchet 2, through the transmission action of the transmission mechanism 6, the pair of feeding disks 7 synchronously rotate in opposite directions as shown in fig. 2, so that the pair of feeding disks 7 in a rotating state move the long strip material towards a fixed direction by virtue of friction force to feed, as shown in fig. 1, after the rocker 3 swings in the left side direction, the rocker 3 starts to swing towards the right side through the action of the reciprocating driving mechanism 5, the pawl 4 swings towards the right direction along with the rocker 3, because the pawl 4 is hinged on the rocker 3, and according to the characteristic of the ratchet 2, the pawl 4 only slides over the ratchet 2 at the moment, as shown in fig. 2, because the strip-shaped material has friction with the pair of feeding disks 7, when no external force drives the pair of feeding disks 7, the feeding disks 7 and the strip-shaped material are in a static state at the moment, therefore, in the process that the reciprocating driving mechanism 5 drives the rocker 3 to reciprocate, the feeding disks 7 can rotate intermittently once, so that the strip-shaped material is fed at a fixed length once, therefore, the utility model discloses a particularly important in the utility model, compare the mode of adopting the cam mechanism to feed at a fixed length in the prior art and because the cam is easy to wear and easily cause the defect of not in place transmission, the utility model discloses a connection driving mode of adopting the ratchet 2 and the pawl 4, the transmission stable in structure to pawl 4 and 2 difficult wearing and tearing of ratchet make this fixed length feeding propeller fixed length feeding not only can be stable, long service life moreover, fixed length feeding precision is high, has improved product quality.

Specifically, reciprocating drive mechanism 5 is including articulating connecting rod 51 on rocker 3, articulating dwang 52 at the connecting rod 51 other end and being used for driving dwang 52 pivoted motor 53, through external switch start motor 53 to make dwang 52 rotate, through the transmission of connecting rod 51, make the reciprocal swing of rocker 3.

Specifically, the transmission mechanism 6 includes at least two gears engaged with each other, one of the gears is coaxially and fixedly connected with the ratchet 2, and the rotational speeds of the two gears coaxially and fixedly connected with the pair of feeding disks 7 are equal, so that in this embodiment, the transmission function on the pair of feeding disks 7 can be completed by providing a gear set, the gear set can be composed of two, three or more gears, and it is only necessary to make the rotation directions of the pair of feeding disks 7 opposite and the rotational speeds equal.

Preferably, the transmission mechanism 6 comprises a driving gear 61 coaxially and fixedly connected with the ratchet 2 and one of the feeding discs 7 and a driven gear 62 coaxially and fixedly connected with the other feeding disc 7.

In order to enable the strip-shaped material to move along the fixed direction better and not to change the moving direction easily to separate from the pair of feeding disks 7, a groove 71 is formed in the circumferential end face of each feeding disk 7, and the strip-shaped material penetrates through the middle of the pair of feeding disks 7 and is clamped into the groove 71.

In order to make long form material can be further straightened at the process of fixed length feeding, it is further, as shown in fig. 4, the utility model discloses still including being used for carrying out the straightening mechanism 8 of straightening to long form material before long form material gets into a pair of feeding dish 7, straightening mechanism 8 establishes two at least straightening wheels 82 on cylinder 81 including rotating the cover, staggers the setting around adjacent straightening wheel 82, offer the ring channel that is used for the card to go into long form material on straightening wheel 82's the circumference terminal surface.

Because the long strip-shaped materials pass through the extrusion straightening effect of the plurality of straightening wheels 82 which are arranged in a staggered mode from front to back between the pair of feeding disks 7, the straightening effect of the long strip-shaped materials is further improved.

In order to adjust the height position of the straightening wheel 82 conveniently, furthermore, the upper part and the lower part of the column 81 are respectively provided with an external thread, the upper side and the lower side of the straightening wheel 82 are respectively provided with a pressing sheet 83 contacting with the straightening wheel 82 and a nut 84 contacting with the pressing sheet 83, when the position of the straightening wheel 82 needs to be adjusted, only two nuts 84 need to be screwed, the operation is simple, and the straightening wheel 82 is also convenient to replace.

Example 2

The difference from the embodiment 1 is only that, as shown in fig. 5, the reciprocating driving mechanism 5 includes an electric telescopic rod 54, a movable end of the electric telescopic rod 54 is hinged to the rocker 3, and the other end of the electric telescopic rod 54 is hinged to the mounting seat 55, and when the electric telescopic rod 51 is reciprocally extended and retracted, the electric telescopic rod will also carry the rocker 3 to reciprocally swing.

Note that the conventional other mechanism such as a ball screw mechanism and a cylinder assembly can be used to drive the rocker 3 to reciprocate.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A fixed-length feeding propeller is characterized by comprising:

a pair of feeding disks (7) which drive the strip materials to be fed by the friction force during rotation;

a transmission mechanism (6) for driving a pair of feeding disks (7) to rotate along opposite circumferential directions;

the ratchet wheel (2) is fixedly connected with the input end of the transmission mechanism (6);

a rocker (3) which can swing back and forth around the axis of the ratchet wheel (2);

a pawl (4) which is hinged on the rocker (3) and is used for driving the ratchet wheel (2) to rotate in one direction;

and the reciprocating driving mechanism (5) is used for driving the rocker (3) to swing in a reciprocating manner.

2. A fixed-length feed pusher according to claim 1, wherein the reciprocating drive mechanism (5) comprises a connecting rod (51) hinged to the rocker (3), a turning rod (52) hinged to the other end of the connecting rod (51), and a motor (53) for driving the turning rod (52) to turn.

3. The fixed-length feed thruster of claim 1, wherein the reciprocating drive mechanism (5) comprises an electric telescopic rod (54), the movable end of the electric telescopic rod (54) is hinged with the rocker (3), and the other end of the electric telescopic rod (54) is hinged with the mounting seat (55).

4. A fixed-length feed pusher according to claim 1, characterised in that the transmission means (6) comprises at least two gears in meshed engagement with each other, one of the gears being coaxially and fixedly connected to the ratchet (2) and the two gears being coaxially and fixedly connected to the pair of feed discs (7), respectively, at the same speed.

5. Fixed-length feed pusher according to claim 4, characterized in that the transmission mechanism (6) comprises a driving gear (61) fixedly connected coaxially with the ratchet (2) and with one of the feed discs (7) and a driven gear (62) fixedly connected coaxially with the other feed disc (7).

6. A fixed-length feed pusher according to claim 1, characterised in that the circumferential end faces of the feed disks (7) are provided with recesses (71), and the strip-shaped material passes through the middle of a pair of feed disks (7) and is snapped into the recesses (71).

7. A definite length feed pusher according to any of claims 1-6, characterized by further comprising a straightening mechanism (8) for straightening the elongated material before it enters the pair of feed trays (7).

8. Fixed-length feed pusher according to claim 7, characterized in that the straightening means (8) comprise at least two straightening wheels (82) rotatably mounted on the column (81), adjacent straightening wheels (82) being arranged offset one behind the other.

9. The fixed-length feed pusher according to claim 8, wherein the straightening wheel (82) has an annular groove formed on a circumferential end surface thereof for receiving the elongated material.

10. The fixed-length feeding thruster of claim 8, wherein the upper part and the lower part of the cylinder (81) are externally threaded, and the upper side and the lower side of the straightening wheel (82) are respectively provided with a pressing piece (83) in contact with the straightening wheel (82) and a nut (84) in contact with the pressing piece (83).