CN209773078U

CN209773078U - Duplex pinch roll

Info

Publication number: CN209773078U
Application number: CN201920645523.XU
Authority: CN
Inventors: 冯健鹏; 翟文
Original assignee: Anyang Fuxing Heli New Materials Co Ltd
Current assignee: Anyang Fuxing Heli New Materials Co Ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2019-12-13
Anticipated expiration: 2029-05-08

Abstract

The duplex pinch roll comprises a base, wherein two speed regulation pinch devices are distributed on the base in a left-right mode and comprise a driving wheel, the driving wheel is arranged above the base and driven by a servo motor, a driven wheel is arranged in a matched mode with the driving wheel and is rotatably connected to one end of a first swing arm through a shaft, the other end of the first swing arm is fixedly connected to one end of a rotating shaft, the other end of the rotating shaft is fixedly connected with a second swing arm, the other end of the second swing arm is hinged to a cylinder rod of an air cylinder, and the tail end of the air cylinder is hinged to a rack. The duplex pinch roll effectively avoids various problems caused by too high or too low speed of the steel bars after being sheared.

Description

Duplex pinch roll

Technical Field

The utility model relates to a pinch roll, in particular to be used for adjusting the duplex pinch roll that the workshop section reinforcing bar speed of marching in the production of bar reinforcement is collected to the reinforcing bar belongs to cold rolling production line equipment technical field.

Background

In the current production technology of straight steel bars, the production line speed is very high (500 m/min), wires after cold rolling are cut off by a flying shear system through a switch (as described in Chinese patent No. 2016210774889), and then alternately enter different guide grooves to flow to a steel bar collection working section, in the current production, after the flying shear cuts off the steel bars, a motor at the bottom of the guide grooves drives a guide wheel to increase and reduce the speed of the steel bars, clamping and conveying are not formed, the advancing speed of the steel bars cannot be effectively controlled, and when the production line speed is very high, the steel bars still impact a baffle switch at the rear end of the steel bar collection working section at high speed, so that the heads of the steel bars are bent, the steel bars are unqualified, and. If the wire rod speed is too slow, the reinforcing bar can be very little to the baffle switch impact of rear end, can not trigger the baffle switch, forms effectual control signal, leads to control error easily, causes the reinforcing bar to accumulate in the tilting gear, causes the production accident easily.

Disclosure of Invention

An object of the utility model is to overcome the above-mentioned problem that the unable control of speed leads to after the reinforcing bar is cut off in the production of present straight bar reinforcing bar, provide a pair pinch roll.

In order to realize the purpose of the utility model, the following technical proposal is adopted: the duplex pinch roll comprises a base, wherein two speed regulation pinch devices are distributed on the base in a left-right mode and comprise a driving wheel, the driving wheel is arranged above the base and driven by a servo motor, a driven wheel is arranged in a matched mode with the driving wheel and is rotatably connected to one end of a first swing arm through a shaft, the other end of the first swing arm is fixedly connected to one end of a rotating shaft, the other end of the rotating shaft is fixedly connected with a second swing arm, the other end of the second swing arm is hinged to a cylinder rod of an air cylinder, and the tail end of the air cylinder is hinged to a rack.

Further, the method comprises the following steps of; the front and the rear of the speed-regulating clamping and conveying device are respectively provided with a feeding guide pipe and a discharging guide pipe, and the front ends of the feeding guide pipe and the discharging guide pipe are in a horn shape.

Further, the method comprises the following steps of; the two sets of speed-regulating clamping and conveying devices are arranged face to face.

Further, the method comprises the following steps of; the induction head is fixedly connected to the cylinder rod of the cylinder, and induction switches are respectively arranged at the corresponding positions of the induction head after the cylinder rod extends out and retracts.

The utility model discloses an actively beneficial technological effect lies in: the duplex pinch roll utilizes the upper wheel and the lower wheel to pinch the steel bars and is controlled by the servo motor, so that the speed of the steel bars when the steel bars are discharged from the pinch roll can be accurately controlled, and various problems caused by too high or too low speed of the steel bars after being sheared are effectively avoided.

Drawings

Fig. 1 is an overall schematic view of the present invention.

FIG. 2 is a partial schematic view of the adjustable speed pinch device.

Figure 3 is a schematic view of an adjustable speed pinch device.

Fig. 4 is a partial cross-sectional schematic view at the two swing arms.

Detailed Description

In order to explain the utility model more fully, the utility model provides an implementation example. These examples are merely illustrative of the present invention and do not limit the scope of the present invention.

The invention is explained in further detail with reference to the drawings, in which the reference symbols are: 1: a base; 2: a servo motor; 3: a feed conduit; 4: a discharge conduit; 5: a chassis; 6: a driving wheel; 7: a driven wheel; 8: a first swing arm; 9: a rotating shaft; 10: a second swing arm; 11: a cylinder; 12: the cylinder rod of the cylinder.

As shown in the attached drawing, the duplex pinch roll comprises a base 1, two sets of speed-regulating pinch devices are distributed on the base left and right, the two sets of speed-regulating pinch devices are arranged face to face, the end parts of a driving wheel and a driven wheel of the two sets of speed-regulating pinch devices are adjacent to each other in the face-to-face arrangement mode, a feeding guide pipe 3 and a discharging guide pipe 4 are respectively arranged on a rack in front of and behind the speed-regulating pinch devices, and the front ends of the feeding guide pipe and the discharging guide pipe are horn-shaped. In the application, the front-back direction is defined as the direction from the feeding guide pipe to the discharging guide pipe, the speed-regulating clamping and conveying device comprises a driving wheel 6, the driving wheel 6 is arranged above the base and is driven by a servo motor 2, a driven wheel is arranged in cooperation with the driving wheel, 7 is shown as a driven wheel, the driven wheel 7 is rotatably connected with one end of a first swing arm 8 through a shaft, the other end of the first swing arm 8 is fixedly connected with one end of a rotating shaft 9, the other end of the rotating shaft 9 is fixedly connected with a second swing arm 10, the other end of the second swing arm 10 is hinged with a cylinder rod 12 of an air cylinder, the tail end of the air cylinder 11 is hinged on the frame, the induction heads are fixedly connected to the cylinder rods of the cylinders, induction switches are arranged at the positions, corresponding to the induction heads, of the cylinder rods after the cylinder rods extend out and retract, the induction switches can be proximity switches, the induction heads can be proximity bodies, and the driving wheel, the driven wheel cylinder and the swing arm are all located in the case 5.

In the present application, when the cylinder rod 12 of the air cylinder is extended, the driven wheel is raised, and when the cylinder rod 12 of the air cylinder is retracted, the driven wheel is pressed, and the states shown in fig. 2 and 3 are both the states when the air cylinder is retracted.

The duplex pinch roll is arranged behind the flying shears and used for enabling the steel bars cut off by the flying shears to be discharged from the pinch roll at a set speed.

The device is arranged at the rear part of a shearing system of a straight bar steel bar production line, when the device is used for continuous production, when the steel bars are sheared and broken by flying, a driven wheel of one set of speed-regulating clamping and conveying device is pressed down to the right position under the action of a cylinder and a connecting rod (the driven wheel drives the driven wheel to move in advance), and a servo motor drives a driving wheel to move to start clamping and conveying. If the actual running speed of the steel bar is higher than the set speed, the speed-regulating clamping and conveying device decelerates the steel bar; if the actual running speed of the steel bars is lower than the set speed, the speed-regulating clamping and conveying device accelerates the steel bars; after clamping and conveying are finished, the air cylinder extends out, and the driven wheel is lifted. Before the flying shears cut off the steel bar, the switch is rotated (see the description of the cutting system in Chinese patent No. 2016210774889), the next steel bar enters into another set of speed-regulating pinch device, and when the flying shears cut off the steel bar, the pinch speed-regulating pinch device starts to pinch. The two speed-regulating clamping and conveying devices alternately act to complete the speed regulation of the steel bars, and the problems that the heads of the steel bars are bent due to too high steel bar speed and effective triggering cannot be formed due to too low steel bar speed are avoided.

After the embodiments of the present invention have been described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above claims, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention, and the present invention is not limited to the embodiments of the examples given in the specification.

Claims

1. Duplex pinch roll, including the base, its characterized in that: two sets of speed regulation clamping and conveying devices are distributed and arranged on the base in the left-right direction and comprise a driving wheel, the driving wheel is arranged above the base and driven by a servo motor, a driven wheel is arranged in cooperation with the driving wheel and is rotatably connected to one end of a first swing arm through a shaft, the other end of the first swing arm is fixedly connected to one end of a rotating shaft, a second swing arm is fixedly connected to the other end of the rotating shaft, the other end of the second swing arm is hinged to a cylinder rod of an air cylinder, and the tail end of the air cylinder is hinged to the rack.

2. The duplex pinch roll of claim 1, wherein: the front and the rear of the speed-regulating clamping and conveying device are respectively provided with a feeding guide pipe and a discharging guide pipe, and the front ends of the feeding guide pipe and the discharging guide pipe are in a horn shape.

3. The duplex pinch roll of claim 1, wherein: the two sets of speed-regulating clamping and conveying devices are arranged face to face.

4. The duplex pinch roll of claim 1, wherein: the induction head is fixedly connected to the cylinder rod of the cylinder, and induction switches are respectively arranged at the corresponding positions of the induction head after the cylinder rod extends out and retracts.