CN210619667U

CN210619667U - Unwinding device

Info

Publication number: CN210619667U
Application number: CN201921722838.6U
Authority: CN
Inventors: 左志福; 金蕾蕾; 姚瑞林; 毕宁宁; 牛培玉
Original assignee: Cangzhou Huifeng Technology Co Ltd
Current assignee: Cangzhou Huifeng Technology Co Ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-05-26
Anticipated expiration: 2029-10-14

Abstract

The utility model provides an unwinding device belongs to plastic film processing technology field, and unwinding device includes: the device comprises a support bracket, a guide rail, a gravity rod and an extractor; the motor is fixed on the support bracket and used for driving the unwinding roller arranged at the bottom of the support bracket to rotate; one end of the guide rail is hinged on the support bracket, the other end of the guide rail is arranged in a downward inclined manner, a sliding groove is formed in the guide rail along the length direction, an inductor is arranged at the bottom of the sliding groove, and the inductor is electrically connected with the motor through a controller; the gravity rod is arranged in the sliding chute in a sliding manner, and the outer peripheral surface of the gravity rod is used for abutting against the outer side surface of the material film unreeled by the unreeling roller; the extractor is positioned on one side of the guide rail, which is far away from the support bracket, and the extraction opening of the extractor is positioned above the gravity rod; the extractor is used for intermittently extracting a certain length of material film. The utility model provides an unwinding device, the suitability is stronger.

Description

Unwinding device

Technical Field

The utility model belongs to the technical field of the plastic film processing, more specifically say, relate to an unwinding device.

Background

In the production line process, a certain length of plastic film needs to be subjected to pressure plastic forming. Since the plastic film is wound on the unwinding roller, intermittent drawing by the drawer is required. The speed of gravity pole landing is comparatively fixed among the current unwinding device, has leaded to the time interval of unreeling at every turn comparatively fixed, and when the plastic film was thinner, the gravity pole creased the plastic film easily, leads to unwinding device's suitability relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an unwinding device aims at solving the relatively poor problem of unwinding device suitability.

In order to achieve the above object, the utility model adopts the following technical scheme: provide unwinding device, include:

the motor is used for driving the unwinding roller placed at the bottom of the bearing bracket to rotate;

one end of the guide rail is hinged to the support bracket, the other end of the guide rail is arranged in a downward inclined manner, a sliding groove is formed in the guide rail along the length direction, an inductor is arranged at the bottom of the sliding groove, and the inductor is electrically connected with the motor through a controller;

the gravity rod is arranged in the sliding groove in a sliding mode, and the outer peripheral surface of the gravity rod is used for abutting against the outer side surface of the material film unreeled by the unreeling roller; and

the extractor is positioned on one side, away from the support bracket, of the guide rail, and an extraction opening of the extractor is positioned above the gravity rod; the extractor is used for intermittently extracting a certain length of the material film.

As another embodiment of this application, the top of support bracket is fixed with the screw thread axle, the top of guide rail is fixed with fixed ear, fixed earmuff is established on the screw thread axle, fixed ear with the help of lock nut with the screw thread power of screw thread axle is fixed on the support bracket.

As another embodiment of the present application, the guide rail includes:

the first groove piece is internally provided with a first cavity;

the second groove piece is internally provided with a second cavity communicated with the first cavity, and the second groove piece is provided with a sliding cavity for accommodating the first groove piece; and

a tightening member for securing said first channel member to said second channel member;

the first cavity and the second cavity are enclosed into the sliding groove.

As another embodiment of the present application, the tightening member includes:

the two clamping plates are hinged with each other, the hinged shaft is positioned at two ends of each clamping plate, one end of each clamping plate is abutted against the outer side face of the second groove piece, and the other end of each clamping plate is provided with a through hole; and

the stud penetrates through the through hole, and two ends of the stud are in threaded connection with clamping nuts;

the second groove member clamps and fixes the first groove member by means of the thread force when the stud is connected with the clamping nut.

As another embodiment of the present application, two ends of the gravity rod are fixedly provided with a rotating bearing, and the rotating bearing is slidably disposed in the sliding groove.

As another embodiment of the application, the unwinding device further comprises a rolling roller rotatably arranged at the top of the supporting frame, and the peripheral surface of the rolling roller is used for supporting the inner side surface of the material film.

As another embodiment of the present application, the rolling roller includes:

the fixed shaft is arranged at the top of the bearing bracket; and

and the rolling ring piece is rotatably sleeved on the fixed shaft and is used for supporting the inner side surface of the material film.

As another embodiment of the application, a supporting groove is arranged in the supporting bracket and is used for supporting the unwinding roller.

As another embodiment of the present application, the guide rails are disposed in parallel and symmetrically on both sides of the support bracket.

As another embodiment of the present application, an axis of the gravity rod is perpendicular to a length direction of the guide rail.

The utility model provides an unwinding device has beneficial effect to lie in, compares with prior art, the utility model discloses unwinding device when the extractor takes out the material membrane, the gravity pole slides upwards in the material membrane drive, and the gravity pole from the bottom roll-off this moment, the state of inductor changes. The inductor drives the motor to rotate through the controller, and the unwinding roller starts unwinding the material film. When the gravity rod slides downwards until the gravity rod is positioned at the bottom of the sliding groove, the state of the inductor changes again, the inductor closes the rotation of the motor through the controller, and then the extractor extracts the material film with a certain length again, so that intermittent feeding is formed. Compared with the existing device, the gravity rod device has the advantages that the guide rail is hinged to the support bracket, and the acceleration of the gravity rod when the gravity rod slides downwards is changed by changing the angle of the guide rail relative to the support bracket, so that the time of the gravity rod sliding to the bottom is changed. And to thinner material membrane, through reducing the angle between guide rail and the horizontal plane to reduce the impact of gravity pole to the material membrane, can effectively avoid the gravity pole to crumple the material membrane, make the suitability of this device stronger.

Drawings

Fig. 1 is a schematic structural diagram of an unwinding device provided in embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of an unwinding device provided in embodiment 2 of the present invention;

fig. 3 is a top view of fig. 1 provided in accordance with an embodiment of the present invention;

fig. 4 is a schematic view illustrating a connection between a fixed shaft and a rolling ring according to an embodiment of the present invention;

fig. 5 is a schematic connection diagram of a gravity rod and a bearing according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a fastening member according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a second trough member according to an embodiment of the present invention;

fig. 8 is a cross-sectional view of a second channel member in accordance with an embodiment of the present invention.

In the figure: 1. a support bracket; 101. a bearing groove; 2. unwinding rollers; 201. a material film; 3. a guide rail; 301. a first channel member; 302. a second channel member; 303. a clamping plate; 304. fixing the ear; 305. a stud; 306. a slide chamber; 307. clamping the nut; 4. a rolling roller; 401. a fixed shaft; 402. a rolling ring; 403. a friction washer; 404. a thrust ball bearing; 5. a gravity bar; 501. a rotating shaft; 502. a rotating bearing; 503. an anti-slip washer; 6. locking the nut; 7. an extractor.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and fig. 2, the unwinding device of the present invention will now be described. Unwinding device includes: support bracket 1, guide rail 3, gravity bar 5 and extractor 7. The support bracket 1 is fixed with a motor which is used for driving the unwinding roller 2 placed at the bottom of the support bracket 1 to rotate. 3 one end of guide rail articulates on supporting bracket 1, and the other end downward sloping sets up, and the spout has been seted up on 3 edge length direction of guide rail, and the bottom of spout is provided with the inductor, and the inductor passes through the controller to be connected with the motor electricity. The gravity rod 5 is arranged in the sliding groove in a sliding mode, and the outer peripheral face of the gravity rod is used for abutting against the outer side face of the material film 201 unreeled by the unreeling roller 2. The extractor 7 is positioned on one side of the guide rail 3, which is far away from the support bracket 1, and the extraction opening of the extractor 7 is positioned above the gravity rod 5; the extractor 7 is used for intermittently extracting a length of the material film 201.

The utility model provides an unwinding device has beneficial effect to lie in, compares with prior art, the utility model discloses be fixed with the motor on the bearing bracket 1 in the unwinding device, the motor is used for ordering about the unwinding roller of placing in bearing bracket 1 bottom and rotates. One end of the guide rail 3 is hinged with the support bracket 1, and the other end is arranged downwards. The guide rail 3 is provided with a sliding groove in the length direction, the bottom of the sliding groove is provided with an inductor, and the inductor is electrically connected with the motor through a controller. The gravity rod 5 is slidably arranged in the chute. An extractor 7 is arranged on the side of the guide rail 3 facing away from the support bracket 1. The drawing port of the drawer 7 is located above the gravity rod 5. The extractor 7 is used for intermittently extracting a length of the material film 201. When the extractor 7 extracts the material film 201, the gravity rod 5 is driven by the material film 201 to slide upwards, at the moment, the gravity rod 5 slides out from the bottom, and the state of the sensor is changed. The sensor drives the motor to rotate through the controller, and the unwinding roller 2 starts to unwind the material film 201. When the gravity rod 5 slides downwards until the gravity rod is positioned at the bottom of the sliding chute, the state of the inductor changes again, the inductor closes the rotation of the motor through the controller, and then the extractor 7 extracts a certain length of the material film 201 again, so that intermittent feeding is formed. Compared with the existing device, the device has the advantages that the guide rail is hinged to the support bracket 1, and the acceleration of the gravity rod 5 in the downward sliding process is changed by changing the angle of the guide rail 3 relative to the support bracket 1, so that the time for the gravity rod 5 to slide to the bottom is changed. And to thinner material membrane 201, through reducing the angle between guide rail 3 and the horizontal plane to reduce the impact of gravity pole 5 to material membrane 201, can effectively avoid gravity pole 5 to crumple material membrane 201, make this device's suitability stronger

As a specific implementation manner of the unwinding device of the present invention, please refer to fig. 7, a threaded shaft is fixed on the top of the supporting bracket 1, the top fixing lug 304 of the guide rail 3 is sleeved on the threaded shaft, and the fixing lug 304 is fixed on the supporting bracket 1 by means of the locking nut 6 and the threaded force of the threaded shaft. The length of the material film 201 extracted by different extractors 7 is different, and the speed of extracting the material film 201 by different production processes is also different, in order to improve the applicability of the device, the guide rail 3 is hinged with the support bracket 1, so that the guide rail 3 can swing by taking a hinged shaft with the support bracket 1 as a circle center within a certain range. When the included angle of guide rail 3 and ground is great, the gliding speed of gravity pole 5 grow to can satisfy the assembly line that requires highly to production. When the included angle between the guide rail 3 and the ground is small, that is, the speed of extracting the material film 201 by the extractor 7 is low, and the sliding speed of the gravity rod 5 is low, so that the material film 201 is prevented from being subjected to shaping stretching deformation to a certain extent. Two threaded shafts are fixed on two sides of the top of the support bracket 1, and the axes of the threaded shafts can be vertical to the length direction of the guide rail 3. And the fixing lug 304 is fixed on the guide rail 3, the fixing lug 304 is positioned on the outer side of the threaded shaft, and the fixing lug 304 is positioned on the side of the support bracket 1 facing away from the rolling ring 402. The fixing lug 304 can now be fixed to the support bracket 1 by turning the locking nut 6. When the angle of the guide rail 3 needs to be adjusted, the angle can be adjusted by loosening the locking nut 6, and the adjustment is convenient and fast.

As a specific embodiment of the unwinding device provided in the present invention, please refer to fig. 1 and 7, the guide rail 3 includes: a first channel member 301, a second channel member 302, and a tightening member; a first cavity is formed in the first slot member 301. A second cavity communicated with the first cavity is arranged inside the second trough member 302, and a sliding cavity 306 for accommodating the first trough member 301 is formed in the second trough member 302. The tightening member is used to secure the first channel member 301 to the second channel member 302; the first cavity and the second cavity are enclosed to form a sliding groove. In order to increase the length of the one-time extractable material film 201 of the extractor 7 and prevent the unwinding roller 2 from rotating when the extractor 7 extracts the material film 201, the guide rail 3 is set to be a telescopic structure, the first groove member 301 can slide along the sliding cavity 306 formed in the second groove member 302, the gravity rod 5 can be slidably arranged in the sliding groove enclosed by the first cavity and the second cavity, the first groove member 301 can be a U-shaped structure, the second groove member 302 is also a U-shaped structure, the sliding cavity 306 is formed in the straight line segment of the second groove member 302, the second groove members 302 on two sides adjacent to the sliding cavity 306 have certain elastic allowance, the sliding cavity 306 is communicated with two side surfaces of the second groove member 302 close to the sliding groove and far away from the sliding groove, the sliding member is located outside the connection position where the first groove member 301 and the second groove member 302 are screwed, and the second groove member 302 can be clamped by the sliding member to fix the first groove member 301. The fastening members may be provided in plural numbers and symmetrically disposed at both sides of the second channel member 302, thereby improving stability when the first channel member 301 and the second channel member 302 are coupled.

As a specific implementation manner of the unwinding device provided in the present invention, please refer to fig. 6, the screwing member includes: two clamping plates 303 and studs 305; the two clamping plates 303 are hinged to each other, the hinged shaft is located at two ends of each clamping plate, one end, close to the hinged position, of each clamping plate 303 abuts against the outer side face of the second groove member 302, and a through hole is formed in the other end of each clamping plate 303. The stud 305 penetrates the through hole, and both ends of the both-end thread are connected with clamping nuts 307 by threads. The second channel member 302 is secured in clamping relation to the first channel member 301 by the threaded force of the stud 305 when it is coupled to the clamping nut 307. The tightening element comprises two opposite and mutually hinged clamping plates 303, the hinge axis may be arranged at 1/3 along the length of the clamping plates 303, and the two clamping plates 303 are hinged by the hinge axis. The end closer to the hinge shaft is used for clamping the second channel member 302, and the end farther from the hinge shaft is brought close to each other and clamped by the connection of the stud 305 and the clamping nut 307 by the lever principle. One end of the clamping plate 303 close to the hinge shaft abuts against the outer side surface of the second channel member 302, while one end away from the hinge shaft is provided with a through hole, and the stud 305 is inserted through the through hole, and the clamping nut 307 is connected to both ends of the stud 305, so that the two clamping plates 303 are close to each other, and the second channel member 302 clamps and fixes the first channel member 301.

As a specific implementation manner of the unwinding device provided in the present invention, please refer to fig. 5, the two ends of the gravity rod 5 are fixedly installed with rotating bearings 502, and the rotating bearings 502 are slidably disposed in the sliding slots. In order to reduce the friction force when the gravity rod 5 slides in the sliding slot, the two ends of the gravity rod 5 are provided with rotating bearings 502, the outer ring of the rotating bearing 502 is positioned inside the sliding slot, the diameter of the outer ring of the rotating bearing 502 can be smaller than the width of the sliding slot, the gravity rod 5 comprises a rotatable rotating shaft 501 and an anti-skid washer 503 fixed on the rotating shaft 501, and the rotating bearings 502 are fixed at the two ends of the rotating shaft 501. Thereby prevent that at the rolling bearing 502 slip in-process, the outer lane card is on the lateral wall of spout, stability when having guaranteed gravity pole 5 and slided from top to bottom.

As a specific embodiment of the unwinding device provided in the present invention, please refer to fig. 3, the unwinding device further includes a rolling roller 4 rotatably disposed at the top of the support bracket 1, and the outer peripheral surface of the rolling roller 4 is used for supporting the inner side surface of the material film 201. In order to increase the length of the material film 201 which can be extracted by the extractor 7 at one time, a rolling roller 4 is rotatably arranged on the top of the support bracket 1, and the outer peripheral surface of the rolling roller 4 is used for supporting the inner side surface of the material film 201. The rolling roller 4 is located above the gravity rod 5, the material film 201 is transmitted to the gravity rod 5 through the rolling roller 4, and the rolling roller 4 and the gravity rod 5 are arranged on the opposite side surfaces of the material film 201, so that when the gravity rod 5 slides downwards, the unwinding roller 2 can be driven to rotate, and the material film 201 to be extracted by the next extractor 7 is provided.

As a specific embodiment of the unwinding device provided in the present invention, please refer to fig. 4, the rolling roller 4 includes: a stationary shaft 401 and a rolling ring 402; fixed shaft 401 is disposed at the top of support bracket 1. The rolling ring 402 is sleeved on the fixed shaft 401, and the rolling ring 402 is used for supporting the inner side surface of the material film 201. In order to reduce the friction force when the material film 201 is conveyed, the rolling ring 402 is rotatably sleeved on the fixed shaft 401, and the rolling ring 402 and the fixed shaft 401 can be connected through a thrust ball bearing 404. The thrust ball bearings 404 are disposed at two ends of the rolling ring 402, the inner ring is fixed on the fixed shaft 401, and the outer ring abuts against the inner wall of the rolling ring 402, so that friction force generated when the rolling ring 402 rotates relative to the rotating shaft is reduced. A friction washer 403 may be fixed to the outer circumferential surface of the rolling ring 402 to increase the friction force with the inner side surface of the material film 201.

As a specific embodiment of the unwinding device provided in the present invention, please refer to fig. 1 and fig. 2, a supporting slot 101 is disposed in the supporting bracket 1, and the supporting slot 101 is used for supporting the unwinding roller 2. In order to reduce the friction force received when the unwinding roller 2 rotates relative to the support bracket 1, bearings can be installed at the two ends of the unwinding roller 2, the bearings can prevent the friction force received when the unwinding roller 2 rotates in the support groove 101, and the unwinding roller 2 can rotate in real time in the downward sliding process of the gravity rod 5.

As a specific embodiment of the unwinding device of the present invention, please refer to fig. 3, the guide rails 3 are disposed on two sides of the supporting bracket 1 in parallel and symmetrically. The guide rails 3 are arranged in parallel and symmetrically, the gravity rod 5 can slide up and down along the guide rails 3 on two sides, one end of each guide rail 3 is fixed on the support bracket 1, and the other section of each guide rail 3 is arranged downwards and is in a suspended state. The stability of the gravity rod 5 when sliding is ensured.

As a specific embodiment of the unwinding device provided in the present invention, the axis of the gravity rod 5 is perpendicular to the length direction of the guide rail 3. In order to enable the gravity rod 5 to slide smoothly along the sliding groove in the guide rail 3, the axis of the gravity rod 5 is arranged in the length direction of the vertical guide rail 3, so that the friction force borne by the gravity rod 5 during sliding is reduced to the maximum extent, and the gravity rod 5 is guaranteed to be capable of driving the unwinding roller 2 to rotate so as to unwind the material film 201 to the maximum extent.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Unwinding device, its characterized in that includes:

2. The unwinding device as claimed in claim 1, wherein a threaded shaft is fixed to a top of the support bracket, a fixing lug is fixed to a top of the guide rail, the fixing lug is sleeved on the threaded shaft, and the fixing lug is fixed to the support bracket by a screw force of a lock nut and the threaded shaft.

3. The unwinding device of claim 1, wherein the guide track comprises:

the first groove piece is internally provided with a first cavity;

the first cavity and the second cavity are enclosed into the sliding groove.

4. The unwinding device of claim 3, wherein the winding member comprises:

5. The unwinding device as claimed in claim 1, wherein a rotation bearing is fixedly installed at both ends of the gravity rod, and the rotation bearing is slidably disposed in the sliding groove.

6. The unwinding device as claimed in claim 1, further comprising a rolling roller rotatably disposed on the top of the supporting frame, wherein the outer peripheral surface of the rolling roller is used for supporting the inner side surface of the material film.

7. The unwinding device of claim 6, wherein the rolling roller comprises:

the fixed shaft is arranged at the top of the bearing bracket; and

8. The unwinding device of claim 1 wherein a supporting slot is provided in the supporting bracket for supporting the unwinding roller.

9. The unwinding device of claim 1 wherein the guide rails are disposed parallel and symmetrically on both sides of the support bracket.

10. The unwinding device of claim 9 wherein the axis of the gravity bar is perpendicular to the length of the rail.