CN218579232U

CN218579232U - Winding tension adjusting mechanism

Info

Publication number: CN218579232U
Application number: CN202223026397.0U
Authority: CN
Inventors: 李康达; 高鑫; 陈检荣
Original assignee: Shandong Maosen New Material Technology Co ltd
Current assignee: Shandong Maosen New Material Technology Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-03-07
Anticipated expiration: 2032-11-14

Abstract

The utility model discloses a winding tension adjusting mechanism, which comprises a rack and a front guide roller, an adjusting roller, a guide assembly, a driving assembly, a rear guide roller and a winding roller which are horizontally arranged on the rack in parallel, wherein the adjusting roller is arranged above the middle position of the front guide roller and the rear guide roller, and the winding roller is arranged behind the rear guide roller; the two ends of the adjusting roller are mounted on a sliding element of the guide assembly through a floating bearing seat and a tension sensor, and a guide piece of the guide assembly is arranged along the vertical direction; the driving component can drive the sliding element to move up and down. The utility model discloses rolling tension adjustment mechanism regards the dancer rools as tension detection roller simultaneously, can in time detect the tension after the adjustment, has reduced closed-loop control's reaction time, has improved the rolling quality.

Description

Winding tension adjusting mechanism

Technical Field

The utility model relates to a plastic film rolling technical field especially relates to a rolling tension adjustment mechanism.

Background

At present, in the processing process of a PVC film, the processed PVC film is usually cut firstly to obtain a PVC film with a rated width, and then the PVC film is wound by a winding roller on a winding machine. In the rolling process, because the speed difference of wind-up roll rotational speed and calender output PVC membrane, the rolling tension of wind-up roll can take place certain extent and float, influences the rolling quality, and tension fracture leads to the PVC membrane stretch breaking, and tension is too loose can lead to rolling edge irregularity, fold many. Therefore, the winding tension of the PVC film needs to be controlled in the winding process.

The utility model patent with the publication number of CN205187440U discloses a PVC membrane prolongs press coiling mechanism, and tension adjustment mechanism among its technical scheme includes the cylinder, the cylinder lower extreme is provided with the tension dancer roll. The utility model patent with the publication number of CN217201221U discloses a PVC membrane calender rolling tension balancing unit, adopts the electric telescopic handle direction to push away and come wind-up roll both ends installation piece to adjust rolling tension among its technical scheme. No tension sensing mechanism is mentioned in either patent. The practical situation is that the existing winding tension adjusting mechanism is often arranged separately from the tension detecting mechanism, so that after adjustment, tension detection is delayed, and the adjustment time of closed-loop control is longer. Tension adjustment is not timely enough, also can reduce the rolling quality.

Therefore, it is necessary to develop a winding tension adjusting mechanism for the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rolling tension adjustment mechanism regards the dancer rools as the tension detection roller simultaneously, can in time detect the tension after the adjustment, has reduced closed-loop control's reaction time, has improved the rolling quality.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model relates to a rolling tension adjusting mechanism, which comprises a frame and a front guide roller, an adjusting roller, a guide assembly, a driving assembly, a rear guide roller and a rolling roller which are horizontally arranged on the frame in parallel, wherein the adjusting roller is arranged above the middle position of the front guide roller and the rear guide roller, and the rolling roller is arranged behind the rear guide roller; the two ends of the adjusting roller are mounted on a sliding element of the guide assembly through a floating bearing seat and a tension sensor, and a guide piece of the guide assembly is arranged along the vertical direction; the driving component can drive the sliding element to move up and down.

Furthermore, the guide assembly comprises a slide block and guide notches, the two guide notches are symmetrically formed in the side vertical plate of the rack, and each guide notch is a vertically formed rectangular opening; the slider is the cuboid shape, the vertical spout of having seted up in both sides of slider, the spout joint is in the side of direction notch carries out vertical direction.

Furthermore, two between the relative inside wall of slider through connecting rod fixed connection, the connecting rod is on a parallel with the dancer rools.

Furthermore, the driving assembly comprises a driving rod piece and a linear driving element, the driving rod piece comprises a rotating shaft, shifting forks and swing arms, the rotating shaft is rotatably mounted on the rack, the roots of the two shifting forks are fixedly connected to the rotating shaft, and the roots of the two ends of the connecting rod are slidably clamped at the fork opening ends of the two shifting forks; the swing arm is in the frame outside and root fixed connection be in on the end of stretching out of pivot, sharp drive element connects the swing arm top and can drive the swing arm around the pivot swing.

Further, the linear driving element is specifically a hydraulic cylinder or an electric push rod.

Furthermore, the root parts of the two ends of the connecting rod are respectively sleeved with a wear-resistant sleeve, and the wear-resistant sleeves are matched with the fork openings of the shifting forks.

Furthermore, the connecting rod is in wear-resisting cover both ends are provided with the retaining ring groove, be provided with the spacing circlip for the shaft of axial in the retaining ring groove.

Compared with the prior art, the utility model relates to a rolling tension adjustment mechanism's beneficial effect:

the utility model relates to a rolling tension adjustment mechanism, through tension sensor install at the bearing frame that floats with between the sliding element, the pressure that the PVC film of transport pushed down the dancer rools passes through the tension sensor transmission, and tension sensor transmits tensile force signal to the controller of electric cabinet. The controller controls the driving assembly to perform the action of adjusting the vertical displacement of the adjusting roller, so that the tension of the PVC film is adjusted, the tension can be fed back to the tension sensor quickly, and the response time of closed-loop control is shortened. The guide piece of the guide assembly is arranged along the vertical direction, so that the front and back deflection in the adjusting process of the adjusting roller is avoided. The utility model discloses rolling tension adjustment mechanism regards the dancer rools as tension detection roller simultaneously, can in time detect the tension after the adjustment, has reduced closed-loop control's reaction time, has improved the rolling quality.

In addition, through the setting of slider and direction notch, can be at the vertical direction regulating roller of certain extent, through two sliders of connecting rod fixed connection, guaranteed that two sliders are unanimous to go up and down in step, otherwise will block in the jam. Through the setting of integral drive member, set up in swing arm one side the straight line drive element drives, just can make two shift forks carry out synchronous drive at the both ends root of connecting rod, has guaranteed that the both ends of connecting rod go up and down in step, has avoided the jam of dancer rools in-process. Through set up wear-resisting cover between connecting rod and shift fork, can reduce the wearing and tearing of connecting rod root shaft part, be favorable to improve equipment life.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

Fig. 1 is a schematic view of a front view structure of the winding tension adjusting mechanism of the present invention;

FIG. 2 is a front view of the mounting portion of the adjustable roller of the present invention;

fig. 3 is a front view of the driving rod mounting portion of the present invention;

fig. 4 is the schematic view of the sectional structure of the installation position of the wear-resistant sleeve of the present invention.

Description of reference numerals: 1. a frame; 101. a guide slot opening; 2. a front guide roller; 3. a regulating roller; 4. a rear guide roller; 5. a wind-up roll; 6. a floating bearing seat; 7. a tension sensor; 8. a slider; 801. a chute; 9. driving the rod member; 901. a shifting fork; 902. swinging arms; 10. a hydraulic cylinder; 11. a wear-resistant sleeve; 12. a connecting rod; 121. a retainer groove; 13. a circlip for the shaft; 14. a rotating rod sleeve seat.

Detailed Description

The core of the utility model is to provide a rolling tension adjustment mechanism, regard as the tension detection roller with the dancer rools simultaneously, can in time detect the tension after the adjustment, reduced closed-loop control's reaction time, improved the rolling quality.

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to the drawings, fig. 1 is a schematic structural view of a winding tension adjusting mechanism of the present invention; FIG. 2 is a front view of the mounting portion of the adjustable roller of the present invention; fig. 3 is a front view of the driving rod mounting portion of the present invention; fig. 4 is the schematic view of the sectional structure of the installation position of the wear-resistant sleeve of the present invention.

In a specific embodiment, as shown in fig. 1-3, the utility model discloses rolling tension adjustment mechanism includes frame 1 and horizontal parallel arrangement preceding guide roll 2, adjusting roller 3, guide assembly, drive assembly, back guide roll 4 and wind-up roll 5 in frame 1. Preceding guide roll 2, adjusting roller 3, back guide roll 4 and wind-up roll 5 set up from preceding backward, and the PVC film of conveying from the calender passes preceding guide roll 2 lower limb, adjusting roller 3 upper limb and back guide roll 4 lower limb back in proper order, and wind-up roll 5 furls again. The wind-up roll 5 adopts a mode that an air expansion shaft penetrates through a paper tube, and a wind-up power driving mechanism is arranged outside the rack 1 on one side of the wind-up roll 5. Adjusting roller 3 sets up in preceding guide roll 2 and back guide roll 4 intermediate position top, and the PVC film pushes down adjusting roller 3, and wind-up roll 5 establishes in back guide roll 4 rear and carries the PVC film of coming to the place ahead and roll up. The dancer roll 3 is mounted at both ends via floating bearing blocks 6 and tension sensors 7 to the sliding elements of a guiding assembly, the guides of which are arranged in the vertical direction. The driving component can drive the sliding element to move up and down, and further drives the adjusting roller 3 to move up and down. The tension sensor 7 and the actuator of the driving assembly are electrically connected to an equipment electric cabinet.

The tension sensor 7 is arranged between the floating bearing seat 6 and the sliding element, the pressure of the conveyed PVC film pressing the adjusting roller 3 downwards is transmitted through the tension sensor 7, and the tension sensor 7 transmits a tension force signal to a controller of the electric cabinet. The controller controls the driving assembly to perform the action of adjusting the vertical displacement of the adjusting roller 3, so that the tension of the PVC film is adjusted, the tension can be fed back to the tension sensor 7 quickly, and the reaction time of closed-loop control is shortened. By arranging the guide of the guide assembly in a vertical direction, a front-back deflection during adjustment of the adjusting roller 3 is avoided. The utility model discloses rolling tension adjustment mechanism regards the dancer rools as tension detection roller simultaneously, can in time detect the tension after the adjustment, has reduced closed-loop control's reaction time, has improved the rolling quality.

In a specific embodiment of the present invention, as shown in fig. 1 and fig. 2, the guiding assembly includes a slider 8 and a guiding slot 101, two guiding slots 101 are symmetrically disposed on the side vertical plate of the frame 1, and the guiding slot 101 is a vertically disposed rectangular opening. Slider 8 is the cuboid shape, and the vertical spout 801 of having seted up the U type in slider 8's both sides, and spout 801 joint carries out vertical direction at the side of direction notch 101.

Obviously, the guide assembly can also adopt a linear guide rail and a ball sliding block, and the linear guide rail is vertically arranged on the inner side wall of the side vertical plate of the rack 1 and is well limited up and down. The ball sliding block slides on the linear guide rail in a guiding mode. Similar structural deformation mode all falls into among the protection scope of the utility model.

Specifically, as shown in fig. 1 and 2, the two sliders 8 are fixedly connected between the opposite inner side walls through a connecting rod 12, the end of the connecting rod 12 is connected to the slider 8 through a bolt, and the connecting rod 12 is arranged parallel to the adjusting roller 3.

Through the setting of slider 8 and direction notch 101, can be at the vertical direction regulating roll 3 of certain extent, through two sliders 8 of connecting rod 12 fixed connection, guaranteed that two sliders 8 are unanimous synchronous lifting, otherwise will block in.

In a specific embodiment of the present invention, as shown in fig. 1 and fig. 3, the driving assembly includes a driving rod 9 and a linear driving element, the driving rod 9 includes a rotating shaft, a shifting fork 901 and a swing arm 902, the rotating shaft is rotatably mounted on the frame 1, the frame 1 is provided with a rotating rod sleeve seat 14 at the erection position of the rotating shaft, and the rotating rod sleeve seat 14 can be a bearing seat or a sleeve with clearance fit. The roots of the two shifting forks 901 are fixedly connected to the rotating shaft, the two shifting forks 901 extend out towards the connecting rod 12 in parallel, and the fork ends of the two shifting forks 901 are slidably clamped with the roots of the two ends of the connecting rod 12. The swing arm 902 is outside the frame 1 and the root welded connection is on the end that stretches out of pivot, the straight line drive element is connected the swing arm 902 top and can drive the swing arm 902 around the pivot swing.

Specifically, as shown in fig. 1 and 3, the linear driving element is embodied by a hydraulic cylinder 10 or an electric push rod. The two ends of the hydraulic cylinder 10 or the electric push rod are installed and connected to the top end of the swing arm 902 in a pin shaft mode. The electric control valve or electric push rod control switch of the hydraulic cylinder 10 is electrically connected to the electric control box of the equipment and controlled by the controller in the electric control box.

Through the setting of integral drive rod 9, set up in swing arm 902 one side the linear driving element drives, just can make two shift forks 901 carry out synchronous drive at the both ends root of connecting rod 12, has guaranteed that the both ends of connecting rod 12 go up and down in step, has avoided the jam of dancer rools 3 in-process.

Specifically, as shown in fig. 2 and fig. 4, the root parts of the two ends of the connecting rod 12 are respectively sleeved with a wear-resistant sleeve 11, and the wear-resistant sleeves 11 are matched with the fork openings of the shifting forks 901. The wear-resistant sleeve 11 is a wear-resistant cast iron sleeve, a polytetrafluoroethylene engineering plastic sleeve or a tin bronze sleeve.

Specifically, as shown in fig. 4, the connecting rod 12 is provided with retainer grooves 121 at both ends of the wear-resistant sleeve 11, and the retainer grooves 121 are provided with axial circlips 13 for axial restraint.

Through set up wear-resisting cover 11 between connecting rod 12 and shift fork 901 fork mouth, can reduce the wearing and tearing of connecting rod 12 root shaft part, be favorable to improve equipment life.

The utility model discloses a rolling tension adjustment mechanism a specific embodiment in the course of the work, the PVC film of carrying from the calender and coming passes preceding guide roll 2 down along, adjusting roller 3 go up along with back guide roll 4 down along the back in proper order, gear motor drive wind-up roll 5 carries out the roll-up to the PVC film. When the tension of the PVC film is too small, the PVC film is loose, after the controller in the electric cabinet receives a tension reducing signal transmitted by the tension sensor 7, the piston head of the hydraulic cylinder 10 is controlled to be ejected out, the swing arm 902 drives the rotating shaft to rotate in the rotating rod sleeve seat 14, and then the shifting fork 901 is driven to swing upwards, the fork opening of the shifting fork 901 drives the connecting rod 12 to move upwards, the sliding blocks 8 at the two ends of the connecting rod 12 vertically move upwards along the guide groove opening 101, and the adjusting roller 3 is used for tensioning the loose PVC film again after moving upwards for a certain distance. The tension sensor 7 transmits a signal of the increase of the tension to the controller for closed-loop control. When the tension of the PVC film is too large, the action process is opposite.

It should be noted that the embodiments of the present invention are applied to the rolling of PVC film, and the description is made based on this, but the present invention is not limited to this. The utility model discloses technical scheme can use the plastic film of types such as PE, PP, PA, PET completely, and similar applied scene all falls into the utility model discloses an among the protection scope.

The utility model discloses rolling tension adjustment mechanism install through tension sensor 7 at unsteady bearing frame 6 with between the sliding element, the PVC film of transport passes through tension sensor 7 transmissions to the pressure of pushing down regulating roll 3, and tension sensor 7 transmits tensile force signal to the controller of electric cabinet. The controller controls the driving assembly to perform the action of adjusting the vertical displacement of the adjusting roller 3, so that the tension of the PVC film is adjusted, the tension can be fed back to the tension sensor 7 quickly, and the reaction time of closed-loop control is shortened. By arranging the guide of the guide assembly in the vertical direction, a front-back deflection during adjustment of the dancer roll 3 is avoided. The utility model discloses rolling tension adjustment mechanism regards the dancer rools as tension detection roller simultaneously, can in time detect the tension after the adjustment, has reduced closed-loop control's reaction time, has improved the rolling quality. In addition, through the setting of slider 8 and direction notch 101, can be at the vertical direction regulating roll 3 of certain extent, through two sliders 8 of connecting rod 12 fixed connection, guaranteed that two sliders 8 are unanimous synchronous goes up and down, otherwise will block in the jam. Through the setting of integral drive rod 9, set up in swing arm 902 one side the linear driving element drives, just can make two shift forks 901 carry out synchronous drive at the both ends root of connecting rod 12, has guaranteed that the both ends of connecting rod 12 go up and down in step, has avoided the jam of dancer rools 3 in-process. Through set up wear-resisting cover 11 between connecting rod 12 and shift fork 901 fork mouth, can reduce the wearing and tearing of connecting rod 12 root shaft part, be favorable to improve equipment life.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. The winding tension adjusting mechanism is characterized by comprising a rack (1), and a front guide roller (2), an adjusting roller (3), a guide assembly, a driving assembly, a rear guide roller (4) and a winding roller (5) which are horizontally arranged on the rack (1) in parallel, wherein the adjusting roller (3) is arranged above the middle position of the front guide roller (2) and the rear guide roller (4), and the winding roller (5) is arranged behind the rear guide roller (4); the two ends of the adjusting roller (3) are mounted on a sliding element of the guide assembly through a floating bearing seat (6) and a tension sensor (7), and a guide piece of the guide assembly is arranged along the vertical direction; the driving component can drive the sliding element to move up and down.

2. The take-up tension adjusting mechanism according to claim 1, wherein: the guide assembly comprises a sliding block (8) and guide notches (101), the two guide notches (101) are symmetrically arranged on a side vertical plate of the rack (1), and the guide notches (101) are vertically arranged rectangular openings; slider (8) are the cuboid shape, spout (801) have vertically been seted up to the both sides of slider (8), spout (801) joint is in the side of direction notch (101) carries out vertical direction.

3. The take-up tension adjusting mechanism according to claim 2, wherein: two through connecting rod (12) fixed connection between the relative inside wall of slider (8), connecting rod (12) are on a parallel with dancer rools (3).

4. The take-up tension adjusting mechanism according to claim 3, wherein: the driving assembly comprises a driving rod (9) and a linear driving element, the driving rod (9) comprises a rotating shaft, shifting forks (901) and a swinging arm (902), the rotating shaft is rotatably mounted on the rack (1), the roots of the two shifting forks (901) are fixedly connected to the rotating shaft, and the fork opening ends of the two shifting forks (901) can be slidably clamped with the roots at two ends of the connecting rod (12); the swing arm (902) is in frame (1) outside and root fixed connection be in on the end of stretching out of pivot, the straight line drive element is connected swing arm (902) top and can drive swing arm (902) are around the pivot swing.

5. The winding tension adjusting mechanism according to claim 4, characterized in that: the linear driving element is a hydraulic cylinder (10) or an electric push rod.

6. The take-up tension adjusting mechanism according to claim 4, wherein: the root parts of the two ends of the connecting rod (12) are respectively sleeved with a wear-resistant sleeve (11), and the wear-resistant sleeves (11) are matched with fork openings of the shifting forks (901).

7. The take-up tension adjusting mechanism according to claim 6, wherein: the connecting rod (12) is in wear-resisting cover (11) both ends are provided with retaining ring groove (121), be provided with axially spacing circlip (13) for the axle in retaining ring groove (121).