CN211594435U

CN211594435U - Protection film unreels deviation correcting device

Info

Publication number: CN211594435U
Application number: CN201921815742.4U
Authority: CN
Inventors: 张春华; 秦志红; 白汝佳; 杨丁卯; 岳志浩
Original assignee: Guangdong Simcheng Plastics Machinery Co Ltd
Current assignee: Guangdong Simcheng Plastics Machinery Co Ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-09-29
Anticipated expiration: 2029-10-25

Abstract

The utility model discloses a protective film unreeling deviation correcting device, which comprises a base, a swing frame which is slidably arranged on the base, a deviation correcting mechanism for controlling the swing frame to move transversely, two brackets which are symmetrically and slidably arranged on the swing frame, and a film roll width adjusting mechanism which is arranged on the swing frame; a lifting device for lifting the film roll is arranged between the two supports, and the width adjusting mechanism of the film roll is used for adjusting the distance between the two supports; the unwinding device is characterized in that unwinding driving devices are arranged on the supports, two rotatable fixed rotating shafts are arranged on the supports respectively, the two fixed rotating shafts are coaxially arranged, and the output end of each unwinding driving device is in transmission connection with the corresponding fixed rotating shaft. The utility model provides a protection film unreels deviation correcting device can press from both sides tightly fixedly according to the broad width automatic adjustment that the membrane was rolled up, and the suitability is high. In the unreeling process, the deviation correcting mechanism dynamically controls the swing frame to move transversely in a small range to correct the deviation of the protective film.

Description

Protection film unreels deviation correcting device

Technical Field

The utility model relates to an automatic packing technical field of film, in particular to protection film unreels deviation correcting device.

Background

In the processing and production of plastic films, in order to protect the finished film roll from damage during transportation, a protective film, such as a bubble film, is generally applied to the outer surface of the finished film roll. A length of protective film is now cut out, mainly by hand, and the finished roll is then wrapped. Because the production is big, the diameter of coiled material and the broad width change are also great, so the manual work is tailor the protection film and is wasted time and energy, and work efficiency is low.

Therefore, an automatic cutting system for the protective film is needed to be found, so that the protective film roll can be automatically unreeled, and then the protective film is automatically cut into a preset size through a protective film traction cutting device, so that the packaging efficiency of the finished film roll is improved, and the labor intensity of workers is reduced. In the automatic cutting system for the protective film, a protective film unwinding deviation correcting device which can be suitable for realizing automatic unwinding of protective film rolls with different widths is needed. In addition, in the unwinding process of the protective film, when the protective film traction cutting device pulls the film, due to the reasons of non-uniform traction force, unwinding speed, tension or thickness of the protective film and the like, the phenomenon of one-way deviation of the left and right mobile machines is easily caused when the protective film is pulled and unwound, and the cutting effect is influenced, so that the protective film unwinding deviation correcting device has the function of correcting the deviation of the protective film.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, the utility model aims to provide a protection film unreels deviation correcting device, this protection film unreels deviation correcting device and can be applicable to different broad width size protection film book to and have the function of correcting the protection film off tracking.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a protective film unreeling deviation correcting device comprises a base, a swing frame arranged on the base in a sliding mode, a deviation correcting mechanism used for controlling the swing frame to move transversely, two supports symmetrically and slidably arranged on the swing frame, and a film roll width adjusting mechanism arranged on the swing frame; a lifting device for lifting the film roll is arranged between the two supports, and the width adjusting mechanism of the film roll is used for adjusting the distance between the two supports; the unwinding device is characterized in that unwinding driving devices are arranged on the supports, two rotatable fixed rotating shafts are arranged on the supports respectively, the two fixed rotating shafts are coaxially arranged, and the output end of each unwinding driving device is in transmission connection with the corresponding fixed rotating shaft.

The film roll width adjusting mechanism comprises a width adjusting motor arranged in the middle of the swing frame, a double-output-shaft speed reducer and two ball screw pairs symmetrically arranged on two sides of the double-output-shaft speed reducer, wherein each ball screw pair comprises a transversely arranged screw and a screw nut arranged on the screw, two ends of each screw are arranged on the swing frame through bearing seats, and the screw nuts are fixedly connected with the support; and one end of the screw rod, which is close to the double-output-shaft speed reducer, is connected with the output end of the double-output-shaft speed reducer through a coupler.

The coupler is a universal coupler.

The swing frame is provided with two first guide rails corresponding to the two supports respectively, the first guide rails are arranged in parallel with the lead screw, and the bottoms of the supports are connected with the corresponding first guide rails in a sliding mode through first sliding blocks.

Two fixed rotation axis all includes the pivot portion that connects gradually, presss from both sides tight fixed disk, accepting the portion, and two press from both sides tight fixed disk and set up relatively and be used for pressing from both sides tightly the both ends that the membrane was rolled up, and two accepting portions can insert the membrane and roll up the inner tube and realize rolling up the membrane and accept.

The unwinding driving device comprises an unwinding motor and a speed reducer connected with the output end of the unwinding motor, and the unwinding motor is in transmission connection with the rotating shaft part through the speed reducer.

Each support is provided with an unreeling driving device, and each unreeling driving device is respectively and correspondingly connected with a fixed rotating shaft installed on the support in a rotating mode.

The base is transversely provided with a second guide rail, and the bottom of the swing frame is connected with the second guide rail in a sliding mode through a plurality of second sliding blocks.

The deviation rectifying mechanism comprises a connecting seat arranged at the bottom of the swing frame and an electric push rod transversely arranged on the base, and the end part of the push rod of the electric push rod is connected with the connecting seat.

The lifting device comprises a scissor-type lifting platform and a bearing seat fixedly arranged on the scissor-type lifting platform, and the middle part of the bearing seat is downward concave.

Has the advantages that:

the utility model provides a protection film unreels deviation correcting device, compare with prior art, the distance between two supports can be adjusted along with the membrane book of different broad widths, and the membrane is rolled up and is violently kept flat on lifting device, then lifting device drives the membrane book and rises, treats that the axis that rises to the membrane book coincides basically with the axis of two fixed rotation axles, and lifting device stops lifting, the broad width guiding mechanism is rolled up to the membrane drives two supports and is close to in step, finally drives the fixed top in both ends that the fixed rotation axis will be rolled up the membrane and tightly. Therefore, the clamping and fixing can be automatically adjusted according to the width of the film roll, and the applicability is high. The unwinding driving device drives the fixed rotating shaft and the film roll to rotate so as to realize unwinding of the film roll, and in the unwinding process, the deviation rectifying mechanism dynamically controls the swing frame to move transversely in a small range so as to rectify deviation of the protective film, so that the structure is simple and compact.

Drawings

Fig. 1 is a perspective view of the protection film unwinding deviation correcting device provided by the utility model.

Fig. 2 is the utility model provides a protection film unreels deviation correcting device's schematic structure diagram.

Detailed Description

The utility model provides a protection film unreels deviation correcting device, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the embodiment is lifted to follow with reference to the drawing the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.

Referring to fig. 1 and 2, the utility model provides a protective film unwinding deviation correcting device, which comprises a base 1, a swing frame 2 slidably arranged on the base, a deviation correcting mechanism 3 for controlling the swing frame to move transversely, two symmetrical brackets 4 slidably arranged on the swing frame, and a film roll width adjusting mechanism 5 arranged on the swing frame; a lifting device 6 for lifting the film roll is arranged between the two supports, and the width adjusting mechanism 5 of the film roll is used for adjusting the distance between the two supports 4; the unwinding device is characterized in that unwinding driving devices 7 are arranged on the supports 4, two rotatable fixed rotating shafts 8 are respectively arranged on the supports 4, the two fixed rotating shafts are coaxially arranged, and the output end of each unwinding driving device 7 is in transmission connection with the corresponding fixed rotating shaft 8.

When the film roll A lifting device works, firstly, a film roll A is horizontally placed on the lifting device 6, then the lifting device 6 drives the film roll A to ascend, when the film roll A ascends until the axis of the film roll A is basically coincident with the axes of the two fixed rotating shafts 8, the lifting device 6 stops lifting, the film roll width adjusting mechanism 5 drives the two supports 4 to synchronously approach, and finally the fixed rotating shafts 8 are driven to fix and tightly push the two ends of the film roll A. Because the distance between two supports 4 can be adjusted along with the film roll of different broad widths, so can press from both sides tight fixedly according to the automatic adjustment of the broad width of film roll, the suitability is high. Then, the unwinding driving device 7 drives the fixed rotating shaft 8 and the film roll to rotate so as to realize unwinding of the film roll, and in the unwinding process, the deviation rectifying mechanism 3 dynamically controls the swing frame 2 to move transversely in a small amplitude so as to correct the deviation of the protective film, so that the structure is simple and compact.

Specifically, two fixed rotation axis 8 all includes the pivot portion 8a that connects gradually, presss from both sides tight fixed disk 8b, accepting part 8c, and two press from both sides tight fixed disk 8b and set up relatively and be used for pressing from both sides tight fixedly to the both ends that the membrane was rolled up, and two accepting parts 8c can insert the membrane and roll up the inner tube and realize rolling up the membrane and accept. In order to facilitate production and assembly, the rotating shaft part, the clamping fixed disc and the bearing part are integrally formed.

Here, the unwinding driving device 7 includes an unwinding motor 7a and a speed reducer 7b connected to an output end of the unwinding motor, and the unwinding motor is in transmission connection with the rotating shaft portion through the speed reducer. Through the reduction gear can strengthen unreeling drive arrangement's moment of torsion, and the film is rolled up and is rotated more steadily, reliably.

In this embodiment, each of the brackets 4 is provided with an unwinding driving device 7, and each unwinding driving device 7 is rotatably connected to a corresponding fixed rotating shaft 8 installed on the bracket 4. Through setting up like this, make and unreel and have two kinds of mode: active unwinding and passive unwinding; when the film roll is actively unreeled, any one unreeling motor works, the other unreeling motor does not work, the unreeling motor in a working state drives the film roll to rotate to realize unreeling, and the unreeling motor out of the working state plays a certain braking role in the rotation of the film roll; because the protective film roll is generally a bubble film roll, the rolling tightness of the bubble film roll is loose, the unreeling tension of the bubble film roll can be ensured through the braking effect, and the unreeling effect is improved. When unreeling passively, two unreel the motor and do not do all work, lean on the external force to pull the protection film to drive the membrane book and rotate, two unreel the motor this moment and can provide great brake resistance, thereby guarantee the tensile of pulling of protection film, the protection film of being convenient for is at the expansion and the winding of the device of deciding that the cuticula pulls.

Specifically, the film roll width adjusting mechanism 5 comprises a width adjusting motor 5a arranged in the middle of the swing frame, a double-output-shaft speed reducer 5b and two ball screw pairs symmetrically arranged on two sides of the double-output-shaft speed reducer, each ball screw pair comprises a transversely arranged screw 5c and a screw nut 5d arranged on the screw, two ends of each screw are arranged on the swing frame through a bearing seat 5e, and the screw nuts 5d are fixedly connected with the support 4; and one ends of the two lead screws 5c close to the double-output-shaft speed reducer 5b are connected with the output end of the double-output-shaft speed reducer 5b through a coupler 5 f. When the film roll A rises to the point that the axis of the film roll is basically coincident with the axes of the two fixed rotating shafts 8, the wide-width adjusting motor 5a drives the double-output-shaft speed reducer 5b to drive the shaft couplers 5f connected with the two output ends of the double-output-shaft speed reducer to synchronously drive so as to drive the two lead screws 5c to rotate, so that the two lead screw nuts 5d respectively drive the two supports 4 to approach each other until the fixed rotating shafts 8 tightly push the film roll, and the film roll is supported. When the roll is unloaded, the wide-width adjusting motor is reversely driven, so that the tight jacking of the film roll can be released.

Preferably, the coupling 5f is a universal coupling. Even if the double-output-shaft speed reducer and the lead screw are not on the same axis, the two connected shafts can continuously rotate under the condition of an included angle of the axes, and the torque and the motion can be reliably transmitted.

Here, the two first guide rails 21 respectively corresponding to the two brackets 4 are provided on the swing frame 2, the first guide rails 21 are provided in parallel with the lead screw 5c, and the bottom of the bracket 4 is slidably connected to the corresponding first guide rails 21 through the first slider 22. The first guide rail 21 and the first slider 22 can guide the lateral movement of the bracket 4, and ensure the accuracy of the lateral movement of the bracket. In order to make the structure more compact and the support move more stably and smoothly, the first guide rail 21 and the first sliding block 22 are arranged in the swing frame 2, the support 4 is provided with two support legs, each support leg is correspondingly connected with one first guide rail sliding block structure, and the sliding seat is provided with an avoiding groove 23 for the support legs to pass through.

Here, a second guide rail 11 is transversely arranged on the base 1, and the bottom of the swing frame is slidably connected with the second guide rail 11 through a plurality of second sliding blocks 12. The second guide rail can guide the motion of the swing frame, so that the accuracy of the horizontal movement of the swing frame is ensured, and the swing frame can slide more smoothly and reliably in a horizontal small range.

Specifically, the deviation correcting mechanism 3 comprises a connecting seat 3a arranged at the bottom of the swing frame and an electric push rod 3b transversely arranged on the base, and the end part of the push rod of the electric push rod is connected with the connecting seat. The protection film is provided with inductive switch on drawing the deflector roll of deciding the device, and this inductive switch detects the border position of protection film, sends the position error signal who records into the controller, judges through the control unit and handles the back, controls electric putter, makes electric putter promote the rocker and slides to the opposite side by a small margin to it unreels the direction to correct the protection film. The inductive switch is preferably a photosensor.

Preferably, the lifting device 6 comprises a scissor lift 6a and a bearing block 6b which is fixedly arranged on the scissor lift and the middle of which is recessed. The concave shape is preferably a V-shaped groove, and the middle part of the bearing seat is concave downwards, so that the axial direction of the film roll is consistent with the length extending direction of the V-shaped groove during use, and the film roll can be effectively prevented from rolling off in the lifting process. The scissor lift platform is commercially available, and the structure and the working principle of the scissor lift platform are not described in detail herein.

It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.

Claims

1. A protective film unreeling deviation correcting device is characterized by comprising a base, a swing frame, a deviation correcting mechanism, two supports and a film roll width adjusting mechanism, wherein the swing frame is slidably arranged on the base; a lifting device for lifting the film roll is arranged between the two supports, and the width adjusting mechanism of the film roll is used for adjusting the distance between the two supports; the unwinding device is characterized in that unwinding driving devices are arranged on the supports, two rotatable fixed rotating shafts are arranged on the supports respectively, the two fixed rotating shafts are coaxially arranged, and the output end of each unwinding driving device is in transmission connection with the corresponding fixed rotating shaft.

2. The protective film unwinding correction device according to claim 1, wherein the film roll width adjustment mechanism comprises a width adjustment motor arranged in the middle of the swing frame, a dual-output-shaft reducer, and two ball screw pairs symmetrically arranged on two sides of the dual-output-shaft reducer, the ball screw pairs comprise transversely arranged screws and screw nuts mounted on the screws, two ends of each screw are mounted on the swing frame through a bearing seat, and the screw nuts are fixedly connected with the support; and one end of the screw rod, which is close to the double-output-shaft speed reducer, is connected with the output end of the double-output-shaft speed reducer through a coupler.

3. The protection film unwinding correction device of claim 2, wherein the coupling is a universal coupling.

4. The protection film unwinding correction device according to claim 2, wherein the swing frame is provided with two first guide rails corresponding to the two brackets, the first guide rails are parallel to the lead screw, and the bottoms of the brackets are slidably connected to the corresponding first guide rails through first sliders.

5. The protection film unwinding deviation correcting device of claim 1, wherein the two fixed rotating shafts each comprise a rotating shaft portion, a clamping fixing disk and a receiving portion, the rotating shaft portions, the clamping fixing disks and the receiving portions are sequentially connected, the two clamping fixing disks are oppositely arranged and are used for clamping two ends of a film roll, and the two receiving portions can be inserted into the film roll inner cylinder to receive the film roll.

6. The protection film unwinding correction device according to claim 5, wherein the unwinding driving device comprises an unwinding motor and a speed reducer connected to an output end of the unwinding motor, and the unwinding motor is in transmission connection with the rotating shaft portion through the speed reducer.

7. The protection film unwinding correction device of claim 6, wherein each support is provided with an unwinding driving device, and each unwinding driving device is rotatably connected to a corresponding fixed rotating shaft mounted on the support.

8. The protection film unwinding correction device of claim 1, wherein the base is transversely provided with a second guide rail, and the bottom of the swing frame is slidably connected to the second guide rail through a plurality of second sliders.

9. The protection film unwinding correction device of claim 8, wherein the correction mechanism comprises a connecting seat disposed at the bottom of the swing frame and an electric push rod transversely disposed on the base, and an end of the electric push rod is connected to the connecting seat.

10. The protective film unwinding correction device as claimed in claim 1, wherein the lifting device comprises a scissor lift platform and a support base fixedly disposed on the scissor lift platform, and a middle portion of the support base is recessed downward.