CN211140985U

CN211140985U - Active unwinding device for medium film

Info

Publication number: CN211140985U
Application number: CN201921807081.0U
Authority: CN
Inventors: 徐海洋; 高亮
Original assignee: Changchun Huibang Technology Co ltd
Current assignee: Changchun Huibang Technology Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-07-31
Anticipated expiration: 2029-10-25

Abstract

The utility model discloses an initiative unwinding device of well film, including frame, well film, glue roller axle, servo motor, first guiding axle, second guiding axle, pendulum rod axle, displacement sensor and balance etc.. The utility model discloses an initiative unwinding device of well film, simple structure is reasonable, adopts servo motor control initiative to put well film, can obtain the power of the signal of telecommunication and the speed of active control servo motor's rotational speed through the sensor according to the moving speed of rubber tube. The middle rubber sheet is small in traction force of the rubber tube, the thickness of the middle rubber sheet paved on the rubber tube is uniform and is not elongated, the adhesion between the steel wire layers of the high-pressure rubber tube after vulcanization molding is uniform and consistent, the product quality is improved, and the practicability is good.

Description

Active unwinding device for medium film

Technical Field

The utility model relates to a make technical field of high-pressure rubber pipe, especially relate to a initiative unwinding device of well film.

Background

During the manufacture of the high-pressure rubber pipe, a layer of medium rubber sheet is laid between the woven or wound steel wire layers, so that the rubber pipe can achieve the mutual bonding effect between the steel wire layers and between the steel wires after vulcanization.

In the prior art, the unwinding device for the medium film consists of a medium film 1, a bracket 2, a fixed shaft 3, a conical body 4, a friction plate 5, a round nut 6 and guide shafts 7 and 8 (as shown in fig. 3-4). The middle film 1, the cone 4 and the friction plate 5 are sequentially sleeved on the fixed shaft 3 in sequence and are screwed by the round nut 6 and can rotate around the axis of the round nut. The guide shafts 7 and 8 are fixed at the lower end of the bracket 2 and screwed by nuts to play a role in guiding the films. The fixed shaft 3 is fixed at the upper end of the bracket 2 and is screwed up by a nut. The device is fixed behind the braiding machine or the winding machine through screws. When the braiding machine or the winding machine is started, the rubber tube penetrating through the braiding machine or the winding machine moves forwards at a constant speed under the traction action of the front end traction machine. The middle film after changing direction through the guide shafts 7 and 8 is driven by the rubber tube to overcome the friction force generated between the conical body 4 and the friction plate 5, so that the middle film 1 rotates around the axis of the middle film and passively moves the middle film forwards along with the rubber tube.

However, the friction resistance generated between the cone 4 and the friction plate 5 of the prior device is constant, the middle film is driven by the rubber tube to move forward, so that the diameter of the middle film is reduced continuously, and the tension of the middle film released by the middle film is increased continuously according to the lever principle. Because the middle rubber sheet is unvulcanized raw rubber and has the characteristic of large plasticity, the thickness of the middle rubber sheet can be continuously reduced under the condition of increasing tension. Because the thickness of the rubber sheet clamped between the steel wire layers is reduced unevenly, the adhesion between the steel wires is poor along with the thinning of the rubber sheet after the rubber tube is vulcanized, and the quality of products is reduced. Therefore, the improvement of the central film unwinding device is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a well initiative unwinding device of film, well film receive the pulling force of rubber tube little, and well film thickness that the tiling was to the rubber tube above is even not elongated, and the bonding between the high-pressure rubber pipe steel wire layer after the vulcanization molding is even unanimous, has improved product quality.

In order to achieve the above object, the present invention provides the following technical solutions:

an active unwinding device for a medium film comprises a machine base, a medium film, a film roller shaft, a servo motor, a first guide shaft, a second guide shaft, a swing rod shaft, a displacement sensor and a swing disc; the middle film drives the film roll shaft to rotate through the servo motor so as to rotate on the upper part of the machine base; the first guide shaft and the second guide shaft are sequentially positioned at the lower part of the machine base and are parallel to the rubber roll shaft; the swing rod shaft is positioned between the first guide shaft and the second guide shaft and is vertical to the rubber roll shaft; one end of a swing rod shaft is arranged in a fixing hole of the base and can swing up and down around the axis of the swing rod shaft, and the other end of the swing rod shaft is provided with a swing disc; the displacement sensor is arranged at the position of the machine base close to the swinging plate, and the sensing distance between the displacement sensor and the swinging plate is adjusted through a screw cap at the front end of the displacement sensor; and the displacement sensor and the servo motor are respectively and electrically connected with the controller.

Further, the middle film is sleeved on the film roll shaft and fixed through a round nut.

Furthermore, the rubber roll shaft is connected with the servo motor through a large gear and a small gear, the servo motor is installed in a motor installation hole on the base and is firmly fastened through bolts, the small gear and the servo motor are connected and fixed with the motor shaft through a flat key, the large gear is connected with the rubber roll shaft through the flat key, and the large gear and the small gear are meshed with each other.

Further, the device is fixed at the back of the braiding or winding machine by screws.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an initiative unwinding device of well film, simple structure is reasonable, adopts servo motor control initiative to put well film, can obtain the power of the signal of telecommunication and the speed of active control servo motor's rotational speed through the sensor according to the moving speed of rubber tube. The middle rubber sheet is small in traction force of the rubber tube, the thickness of the middle rubber sheet paved on the rubber tube is uniform and is not elongated, the adhesion between the steel wire layers of the high-pressure rubber tube after vulcanization molding is uniform and consistent, the product quality is improved, and the practicability is good.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a front view of the active unwinding device for medium film provided by the present invention.

Fig. 2 is a side view of the active unwinding device for middle films provided by the present invention.

Fig. 3 is a front view of a film unwinding device in the prior art.

Fig. 4 is a side view of a film unwinding device in the prior art.

Fig. 5 is a control circuit diagram of the active unwinding device for medium film provided by the present invention.

Description of reference numerals:

in FIGS. 1-2: 1. middle roll film; 2. a round nut; 3. a rubber roll shaft; 4. a first guide shaft; 5. a second guide shaft; 6. a swing rod shaft; 7. a bull gear; 8. a servo motor; 9. a pinion gear; 10. a displacement sensor; 11. placing a plate; 12. a machine base.

In FIGS. 3-4: 1. middle roll film; 2. a support; 3. a fixed shaft; 4. a conical body; 5. a friction plate; 6. a round nut; 7. a guide shaft; 8. and a guide shaft.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the following embodiments.

As shown in fig. 1-2, the active unwinding device for medium film comprises a frame 12, a medium film 1, a film roll shaft 3, a servo motor 8, a first guide shaft 4, a second guide shaft 5, a swing link shaft 6, a displacement sensor 10 and a swing disc 11; the middle film 1 drives the film roll shaft 3 to rotate through the servo motor 8 so as to rotate on the upper part of the machine base 12; the first guide shaft 4 and the second guide shaft 5 are sequentially positioned at the lower part of the machine base 12 and are parallel to the rubber roll shaft 3; the swing rod shaft 6 is positioned between the first guide shaft 4 and the second guide shaft 5 and is vertical to the rubber roll shaft 3; one end of a swing rod shaft 6 is installed in a fixing hole of the base 12 and can swing up and down around the axis of the swing rod shaft, and a swing disc 11 is installed at the other end of the swing rod shaft 6; the displacement sensor 10 is arranged at the position of the base 12 close to the wobble plate 11, and the sensing distance between the displacement sensor and the wobble plate 11 is adjusted through a screw cap at the front end of the displacement sensor; the displacement sensor 10 and the servo motor 8 are respectively electrically connected with the controller.

Specifically, the middle film 1 is sleeved on the film roll shaft 3 and fixed through the round nut 2.

The rubber roll shaft 3 is connected with the servo motor 8 through a large gear 7 and a small gear 9, the servo motor 8 is installed in a motor installation hole on the base 12 and is firmly fastened through bolts, the small gear 9 and the servo motor 8 are connected and fixed with the motor shaft through a flat key, the large gear 7 is connected with the rubber roll shaft 3 through a flat key, and the large gear and the small gear are meshed with each other.

The device can be fixed behind the braiding or winding machine by screws. The middle rubber sheet passing through the swing rod shaft 6, the first guide shaft 4 and the second guide shaft 5 enters a steel wire layer of a rubber pipe in a braiding machine or a winding machine, and the middle rubber sheet moves forwards along with the rubber pipe under the traction action of a front end tractor.

The middle film 1 is driven by a rubber tube to move forwards, the middle film lifts up the swing rod shaft 6, when the displacement sensor 10 rotates through the swing disc 11 arranged behind the swing rod shaft 6, the distance between the inclined plane of the displacement sensor and the front end face of the sensor 10 is increased to generate an electric signal and transmit the electric signal to the P L C controller (a control circuit is shown in figure 5), the PRC controller controls the servo motor 8 to rotate through the driver, and the servo motor 8 drives the middle film 1 to rotate through the large pinion, so that the effect of actively placing the middle film is achieved.

Because the servo motor is adopted to control the active centering rubber sheet, the rotation speed of the servo motor can be actively controlled according to the intensity of the electric signal obtained by the sensor according to the moving speed of the rubber tube. The middle rubber sheet is pulled by the rubber tube to be small in tension, the thickness of the middle rubber sheet paved on the rubber tube is uniform and is not elongated, the adhesion between the steel wire layers of the high-pressure rubber tube after vulcanization molding is uniform and consistent, and the product quality is improved.

Compared with the prior art, the novel unwinding device has the advantages that the diameter of the medium film can be larger, for example, the length of the medium film is doubled, the replacement times of the medium film in the production process are reduced, the labor intensity of workers is reduced, and the yield of products is improved.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments, but such modifications or substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The active unwinding device of the medium film is characterized by comprising a machine base (12), a medium film (1), a film roll shaft (3), a servo motor (8), a first guide shaft (4), a second guide shaft (5), a swing link shaft (6), a displacement sensor (10) and a swing disc (11); the middle film (1) drives the film roll shaft (3) to rotate through the servo motor (8) so as to rotate on the upper part of the machine base (12); the first guide shaft (4) and the second guide shaft (5) are sequentially positioned at the lower part of the machine base (12) and are parallel to the rubber roll shaft (3); the swing rod shaft (6) is positioned between the first guide shaft (4) and the second guide shaft (5) and is vertical to the rubber roll shaft (3); one end of a swing rod shaft (6) is installed in a fixing hole of the base (12) and can swing up and down around the axis of the swing rod shaft, and a swing disc (11) is installed at the other end of the swing rod shaft (6); the displacement sensor (10) is arranged at the position, close to the swinging plate (11), of the base (12), and the sensing distance between the displacement sensor and the swinging plate (11) is adjusted through a screw cap at the front end of the displacement sensor; and the displacement sensor (10) and the servo motor (8) are respectively electrically connected with the controller.

2. The active unwinding device of the middle film as claimed in claim 1, wherein the middle film (1) is sleeved on the film roller shaft (3) and fixed by a round nut (2).

3. The active unwinding device for medium film of claim 1, wherein the rubber roll shaft (3) and the servo motor (8) are connected through a large gear (7) and a small gear (9), the servo motor (8) is installed in a motor installation hole on the base (12) and is firmly fastened by bolts, the small gear (9) and the servo motor (8) are connected and fixed with the motor shaft through a flat key, the large gear (7) and the rubber roll shaft (3) are connected through a flat key, and the large gear and the small gear are meshed with each other.

4. The active unwinding device for prepreg sheets of claim 1, wherein the device is fixed at the rear of the braiding or winding machine by screws.