CN214359284U

CN214359284U - Film connecting device

Info

Publication number: CN214359284U
Application number: CN202022022671.1U
Authority: CN
Inventors: 刘术福
Original assignee: Gaomi Boshida Precision Packaging Machinery Co ltd
Current assignee: Gaomi Boshida Precision Packaging Machinery Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-10-08
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a film connecting device, which comprises a base, a film breaking detection component arranged on the base and a film connecting component connected with a power box; the broken membrane detection assembly comprises: the fixing frame is arranged on the base, and the photoelectric switch is arranged on the fixing frame; connect membrane module includes: the device comprises a first eccentric shaft, a second eccentric shaft, a pull rod and an electromagnet; the electromagnet is positioned in the power box, one end of the pull rod is connected with the electromagnet, the other end of the pull rod is connected with one end of the first eccentric shaft, one end of the second eccentric shaft is connected with one end of the first eccentric shaft, and the other end of the first eccentric shaft and the other end of the second eccentric shaft are both connected with the base. The utility model discloses a photoelectric switch send signal extremely connect the electro-magnet in the membrane module, by the first eccentric shaft of electro-magnet control and the second eccentric shaft pastes tightly, make the beginning of new packaging film be connected to the rear end of the packaging film that is about to run out smoothly to realize connecing the membrane automatically, improved packaging efficiency of packaging film greatly.

Description

Film connecting device

Technical Field

The utility model relates to a equipment for packing technical field, in particular to connect membrane device.

Background

The automatic film connecting device in the current market is mostly applied to positive films, and the reverse film packaging machine is not equipped with the automatic film connecting device and needs manual film replacement, so that the packaging efficiency of the packaging film is low.

Thus, the prior art has yet to be improved and enhanced.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a film splicing device, which aims to overcome the defect of low packaging efficiency caused by the fact that the packaging film cannot be automatically spliced when the film splicing device is used for splicing the film.

The utility model provides a technical scheme that technical problem adopted as follows:

the embodiment of the utility model provides a film connecting device, which comprises a base and a power box arranged on the base; the membrane connecting device also comprises a membrane breakage detection assembly arranged on the base and a membrane connecting assembly connected with the power box;

the broken film detection assembly comprises: the fixing frame is arranged on the base, and the photoelectric switch is arranged on the fixing frame;

the membrane connecting assembly comprises: the device comprises a first eccentric shaft, a second eccentric shaft, a pull rod and an electromagnet; the electromagnet is positioned in the power box, one end of the pull rod is connected with the electromagnet, the other end of the pull rod is connected with one end of the first eccentric shaft, one end of the second eccentric shaft is connected with one end of the first eccentric shaft, and the other end of the first eccentric shaft and the other end of the second eccentric shaft are both connected with the base.

As a further improved technical solution, the film connecting device further comprises a film hanging component connected with the power box, and the film hanging component comprises: the film hanging device comprises a film hanging roller, a moving shaft, an adjusting knob, a first tensioning part and a second tensioning part; the movable shaft is positioned in the center of the film hanging roller, one end of the film hanging roller and one end of the movable shaft are arranged in the power box, the adjusting knob is connected with the other end of the movable shaft, and the other end of the film hanging roller is abutted; the first tensioning portion is sleeved at one end of the moving shaft, the second tensioning portion is sleeved at the other end of the moving shaft, and the adjusting knob is used for adjusting the positions of the first tensioning portion and the second tensioning portion which are sleeved on the moving shaft.

As a further improved technical solution, in the film joining device, the first tensioning portion includes: the first tensioning block fixing seat, the first tensioning block, the first bearing gland and the first clamp spring are arranged on the first clamping ring; the first tensioning block fixing seat is connected with one end of the movable shaft, the first tensioning block is connected with the first tensioning block fixing seat, and the first bearing, the first bearing gland and the first clamp spring are sequentially connected with the power box.

As a further improved technical scheme, in the film connecting device, a moving groove matched with the first tensioning portion and the second tensioning portion in shape is formed in the outer surface of the film hanging roller, and the second tensioning portion comprises: the second tensioning block, the tensioning sleeve, the second tensioning block fixing seat and the locking taper sleeve are arranged on the base; the tensioning sleeve is connected with the other end of the moving shaft, the second tensioning block fixing seat penetrates through the other end of the moving shaft and is arranged on the tensioning sleeve, one end of the locking taper sleeve penetrates through the tensioning sleeve and the second tensioning block and is connected with one end of the moving shaft, and the other end of the locking taper sleeve is connected with the adjusting knob; the second tensioning block fixing seat is provided with a moving track, and the second tensioning block is movably connected with the second tensioning block fixing seat through the moving track.

As a further improved technical scheme, the film connecting device further comprises a brake component connected with the power box; the brake assembly includes: the brake device comprises a first guide roller, a second guide roller, a brake arm, a brake block, a tension spring, a movable block and a limiting block; the stopper with the headstock is connected, extension spring one end sets up in the headstock, the other end with the brake block with brake arm one end is connected, the other end of brake arm with movable block looks butt, the one end of first guide roll with the one end of second guide roll is connected, just the one end of first guide roll with the one end of second guide roll with the stopper butt, the other end of first guide roll with the other end of second guide roll is connected, the one end of second guide roll with the movable block is connected.

As a further improved technical scheme, the film connecting device also comprises a reversing component connected with the power box; the commutation module comprises: the device comprises a reversing roller, a chain group, an adjusting hand wheel and an adjusting plate; the chain group is positioned in the power box, one end of the reversing roller is connected with the chain group, the other end of the reversing roller is connected with the adjusting hand wheel, and the adjusting plate is connected with the chain group and one end of the film hanging roller; and a groove corresponding to the position of the photoelectric switch is formed in the middle of the reversing roller.

As a further improved technical scheme, the film connecting device also comprises a side film pressing brush and a central film pressing brush; side press mold brush with the headstock is connected, and is located first guide roll and second guide roll below, center press mold brush sets up on the base, and be located between first eccentric shaft and the second eccentric shaft.

As a further improved technical scheme, the film connecting device further comprises a scale which is arranged on the base and is positioned on the side surfaces of the first eccentric shaft and the second eccentric shaft.

As a further improved technical scheme, the film connecting device further comprises a plurality of transition rollers, and the transition rollers are arranged on the bottom surface of the base and are positioned below the first eccentric shaft, the second eccentric shaft and the reversing roller.

As a further improved technical scheme, in the film connecting device, an electromagnet is arranged in the electromagnet.

Compared with the prior art, the embodiment of the utility model provides a have following advantage:

according to the utility model discloses embodiment provides a connect membrane device, when the packaging film was about to run out, send signal extremely through the photoelectric switch among the detection subassembly connect the electro-magnet among the membrane module, by the first eccentric shaft of electro-magnet control and second eccentric shaft paste tightly, make the beginning of new packaging film can be connected to the rear end of the packaging film that is about to run out smoothly to realize connecing the membrane automatically. The embodiment of the utility model provides an in connect the membrane device can realize the automatic continuous connecing of packaging film, improved the packing efficiency of packaging film greatly.

Drawings

Fig. 1 is a schematic structural view of a film connecting device in the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a schematic structural view of a power box in the film connecting device of the present invention;

fig. 4 is a first cross-sectional view of the film joining device according to the present invention;

fig. 5 is a second cross-sectional view of the film joining apparatus according to the present invention;

fig. 6 is a third sectional view of the film joining device according to the present invention.

In the figure: 100. a base; 200. a power box; 110. a broken film detection assembly; 111. a fixed mount; 112. a photoelectric switch; 121. a first eccentric shaft; 122. a second eccentric shaft; 123. a pull rod; 124. an electromagnet; 300. a film hanging component; 400. a brake assembly; 500. a commutation assembly; 310. a film hanging roller; 320. a movable shaft; 330. adjusting a knob; 340. a first tensioning part; 350. a second tensioning part; 311. a moving groove; 341. a first tensioning block fixing seat; 342. a first tensioning block; 343. a first bearing; 344. a first bearing gland; 345. a first clamp spring; 351. a second tensioning block; 352. a tensioning sleeve; 353. a second tensioning block fixing seat; 354. locking the taper sleeve; 356. a retainer ring; 357. a front support sleeve; 358. a second bearing cap; 359. a rear support sleeve; 360. a second clamp spring; 361. a sleeve; 362. a second bearing; 410. a first guide roller; 420. a second guide roller; 430. a brake arm; 440. a brake block; 450. a tension spring; 460. a movable block; 470. a limiting block; 451. a spring fixing plate; 431. a nylon sleeve; 432. a support sleeve; 461. a connecting shaft; 462. a fixed block; 510. a reversing roller; 520. a chain set; 530. adjusting a hand wheel; 540. an adjustment plate; 521. a first gear; 522. a second gear; 523. a third gear; 524. a guide gear; 525. a rack; 511. a groove; 710. pressing the membrane hairbrush laterally; 720. a central film pressing brush; 800. and (4) a transition roller.

Detailed Description

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the following description of the present invention will refer to the accompanying drawings and illustrate embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the embodiments and claims, the terms "a" and "an" can mean "one or more" unless the article is specifically limited.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model discloses a film connecting device, please refer to fig. 1 to fig. 6 together. The membrane connecting device comprises: the power box comprises a base 100 and a power box 200 arranged on the base 100; the film breaking detection device also comprises a film breaking detection component 110 arranged on the base and a film connecting component connected with the power box;

the broken film detection assembly 110 includes: the fixing frame 111 is arranged on the base 100, and the photoelectric switch 112 is arranged on the fixing frame 111; the membrane connecting assembly comprises: a first eccentric shaft 121, a second eccentric shaft 122, a tie rod 123, and an electromagnet 124; the electromagnet 124 is located in the power box 200, one end of the pull rod 123 is connected to the electromagnet 124, the other end is connected to one end of the first eccentric shaft 121, one end of the second eccentric shaft 122 is connected to one end of the first eccentric shaft 121, and the other ends of the first eccentric shaft 121 and the second eccentric shaft 122 are both connected to the base 100.

The embodiment of the utility model provides an in, when the last time is about to use to the packaging film on hanging the membrane cylinder, when the packaging film of switching-over roller department is about to exhaust the membrane, photoelectric switch transmits the signal for PLC controller (programmable logic controller), prepares to carry out the automation and connects the membrane. Wherein the electromagnet 124 is an ac electromagnet (for example, a SA-3702 push-pull ac electromagnet), and a PLC controller (not shown in the figure) is connected to the electromagnet 124; when the photoelectric switch 112 in the film breakage detecting assembly 110 detects that no packaging film is conveyed, a signal is sent to the PLC controller, and the electromagnet 124 connected with the PLC controller further drives the pull rod 123 to pull one end of the first eccentric shaft 121, so that the originally separated first eccentric shaft 121 and second eccentric shaft 122 are tightly attached to each other, and the beginning of a new packaging film can be smoothly connected to the rear end of the packaging film which is about to run out, thereby completing automatic film splicing. Wherein the open end of the new wrapping film is stuck to the first eccentric shaft 121 and the second eccentric shaft 122. The utility model provides a connect membrane device can realize that the efficient connects the membrane automatically, saves the manpower and the time of artifical membrane of trading, the time of extension continuous production.

It is worth mentioning that, current automation connects membrane device to be applied to positive membrane more (the pattern scheme on the packaging film is forward), the utility model provides a connect membrane device can be applied to the packing of anti-membrane, can realize connecting the packing that membrane device carries out the packaging film in step with the automation of positive membrane, current automation connects membrane device most to connect the membrane for cylinder drive simultaneously, and the utility model discloses a thereby disconnected membrane determine module and the continuation of the realization packaging film that connects the combination of membrane module nimble more accurate improves the packaging efficiency of packaging film greatly.

Further, the film connecting device further comprises a film hanging component 300 connected with the power box 200; specifically, the biofilm culturing assembly 300 includes: the film hanging device comprises a film hanging roller 310, a moving shaft 320, an adjusting knob 330, a first tensioning part 340 and a second tensioning part 350; the moving shaft 320 is located at the center of the film hanging roller 310, one end of the film hanging roller 310 and one end of the moving shaft 320 are arranged in the power box 200, the adjusting knob 330 is connected with the other end of the moving shaft 320, and the other end of the film hanging roller 310 is abutted; the first tensioning portion 340 is connected to one end of the moving shaft 320, the second tensioning portion 350 is connected to the other end of the moving shaft 320, and the adjusting knob 330 is used to adjust positions of the tensioning portion 340 and the second tensioning portion 350 on the moving shaft 320. And the outer surface of the film hanging roller is provided with a moving groove matched with the first tensioning part and the second tensioning part in shape.

In the embodiment of the present invention, the film connecting device further includes a brake assembly 400 and a reversing assembly 500 connected to the power box 200; the hanging film assembly 300 is used for hanging a packaging film; the brake assembly 400 is used for transmitting the packaging film when the film hanging assembly 300 rotates, and locking the packaging film when the film hanging assembly 300 does not rotate; the reversing assembly 500 is used to advance or retract the film-forming drum 310 along its own axis. Wherein, hang membrane module 300, brake subassembly 400 and switching-over subassembly 500 and all include two, and all the symmetry sets up. Specifically, the film hanging assemblies 300 are symmetrically connected to the upper portion of the power box 200, the brake assemblies 400 are symmetrically connected to the bottom of the power box 200 and located on the outer side surfaces of the film hanging assemblies 300, and the reversing assemblies 500 are connected to the bottom of the power box 200 and located on the outer side surfaces of the brake assemblies 400; the broken film detection assembly 110 is arranged on the outer side face of the reversing assembly 500, one end of the film connecting assembly is connected with the power box, and the other end of the film connecting assembly is connected with the base and is located at the center of the base.

In actual use, the packaging film is placed on the film hanging roller 310 or replaced. At this time, the packaging film can be positioned at one end of the film hanging roller 310 through the first tensioning portion 340, and the other end of the packaging film cannot be accurately positioned, so that the packaging film cannot be accurately connected with the previous packaging film. At this time, the adjusting knob 330 is manually rotated to rotate the moving shaft 320, so that the second tensioning portion 350 connected to the moving shaft 320 linearly moves along the moving shaft 320 and protrudes to the moving slot 311; meanwhile, the first tensioning portion 340 also moves linearly along the moving axis 320, and the moving direction of the first tensioning portion is opposite to that of the second tensioning portion 350. Wherein the moving shaft 320 is a threaded rod. For example, when the adjustment knob 330 is rotated clockwise and the corresponding moving shaft 320 rotates clockwise, the first tensioning portion 340 and the second tensioning portion 350 on the moving shaft 320 rotate in opposite directions and move along the moving shaft 320. For example, when the adjustment knob 330 is rotated clockwise, the second tightening part 350 on the moving shaft 320 moves along the moving slot 311 toward the other end surface of the moving shaft 320, and when the adjustment knob 330 is rotated counterclockwise, the second tightening part 350 on the moving shaft 320 moves along the moving slot 311 toward the center of the moving shaft 320. When the second tensioning part 350 moves from the other end of the moving shaft 320 to the center of the moving shaft 320, the second tensioning part 350 slowly protrudes out of the moving groove 311 until abutting against the other end of the packaging film, so as to position the other end of the packaging film; when the packaging film needs to be taken out from the film hanging roller, the adjusting knob 330 controls the second tensioning portion 350 to move from the center of the moving shaft 320 to the other end of the moving shaft 320 through the moving shaft 320, and the second tensioning portion 350 is slowly retracted into the moving groove 311 along the moving groove 311, so that the packaging film can be taken out from the film hanging roller 310.

Specifically, the first tensioning portion 340 includes: the first tensioning block fixing seat 341, the first tensioning block 342, the first bearing 343, the first bearing cover 344 and the first snap spring 345; the first tensioning block fixing seat 341 is connected with one end of the moving shaft 320, the first tensioning block 342 is connected with the first tensioning block fixing seat 341, and the first bearing 343, the first bearing cover 344 and the first snap spring 345 are sequentially connected with the power box 200.

More specifically, the second tensioning portion 350 includes: the second tensioning block 351, the tensioning sleeve 352, the second tensioning block fixing seat 353 and the locking taper sleeve 354; the tensioning sleeve 352 is connected with the other end of the moving shaft 320, the second tensioning block fixing seat 353 passes through the other end of the moving shaft 320 and is arranged on the tensioning sleeve 352, one end of the locking taper sleeve 354 passes through the tensioning sleeve 352 and the second tensioning block 351 and is connected with one end of the moving shaft 320, and the other end of the locking taper sleeve 354 is connected with the adjusting knob 330; the second tensioning block fixing seat 353 is provided with a moving track, and the second tensioning block 351 is movably connected with the second tensioning block fixing seat 353 through the moving track. Wherein, the edge of the tensioning sleeve 352 is provided with a retaining ring 356 and a front supporting sleeve 357 connected with the locking taper sleeve 354. The locking taper sleeve 354 is rotated by the adjusting knob 330 to press the second tensioning block 351 or separate from the second tensioning block fixing seat 353, so that the second tensioning block 351 extends or retracts along the motion track.

More specifically, the biofilm culturing assembly 300 further comprises a second bearing cover 358, a rear support sleeve 359, a second clamp spring 360, a sleeve 361 and a second bearing 362 which are positioned in the power box 200.

Further, the brake assembly 400 includes: a first guide roller 410, a second guide roller 420, a brake arm 430, a brake block 440, a tension spring 450, a movable block 460 and a limit block 470; the stopper 470 with the headstock 200 is connected, extension spring 450 one end sets up in the headstock 200, the other end with brake block 440 with brake arm 430 one end is connected, the other end of brake arm 430 with movable block 460 looks butt, the one end of first guide roll 410 with the one end of second guide roll 420 is connected, just the one end of first guide roll 410 with the one end of second guide roll 420 with stopper 470 butt, the other end of first guide roll 410 with the other end of second guide roll 420 is connected, the one end of second guide roll 420 with movable block 460 connects.

In the embodiment of the present invention, when the film joining device is stationary, the one end of the first guiding roller 410 and the one end of the second guiding roller 420 abut against the upper portion of the stopper 470, and when the film joining device acts, the packaging film passes through the first guiding roller 410 and the second guiding roller 420, and a downward force is generated to drive the one end of the first guiding roller 410 and the one end of the second guiding roller 420 to move from the upper portion of the stopper 470 to the lower portion of the stopper 470, so as to transmit the packaging film. Specifically, one end of the tension spring 450 is arranged in the power box 200 through a spring fixing plate 451, the other end of the tension spring is connected with the brake block 440 and one end of the brake arm 430, and the brake arm 430 and the brake block 440 are fixedly arranged in the power box 200 through a nylon sleeve and a supporting sleeve; the movable block 460 is movably disposed on a fixed block 462 through a connecting shaft, and is connected to one end of the second guide roller 420 through the fixed block 462. When the film joining device is operated, the packaging film passes through the first guide roller 410 and the second guide roller 420, and the packaging film is driven to generate a downward force to drive one end of the first guide roller 410 and one end of the second guide roller 420 to move from the upper part of the limit block 470 to the lower part of the limit block 470, and at the same time, the movable block 460 connected with one end of the second guide roller 420 pushes open the brake arm 430 abutted against the movable block, and the tension spring 450 connected with the brake arm 430 is pulled open (at this time, the power transmitted by the packaging film is greater than the tension of the tension spring 450). When the film connecting device is static, the packaging film is not conveyed any more at this time, the force on the first guide roller 410 and the second guide roller 420 disappears, and then the tension spring 450 contracts to drive the brake arm 430 to rebound, so that the brake arm 430 abuts against the movable block 460, and one end of the first guide roller 410 and one end of the second guide roller 420 abut against the upper portion of the limiting block 470. Thereby avoiding the waste of packaging film caused by the rotation of the film hanging component 300 due to inertia when the machine is stopped.

Further, the reversing assembly 500 includes: a reversing roller 510, a chain group 520, an adjusting handwheel 530 and an adjusting plate 540; the chain group 520 is located in the power box 200, one end of the reversing roller 510 is connected with the chain group 520, the other end of the reversing roller is connected with the adjusting handwheel 530, the adjusting plate 540 is connected with the chain group 520 and one end of the film hanging roller 310, wherein a groove 511 corresponding to the position of the photoelectric switch 112 is formed in the middle of the reversing roller 510, and the photoelectric switch 112 can detect whether the packaging film is about to be used up or not through the light transmittance of the packaging film on the groove.

In the embodiment of the present invention, the reversing roller 510 is used to change the moving direction of the packaging film (for example, transmit the packaging film to other devices), and the adjusting handwheel 530 is rotated to drive the chain set 520, so that the adjusting plate 540 is moved by the chain set 520, thereby moving the film hanging roller 310 along its own axis direction. For example, the adjustment handwheel 530 is rotated clockwise, so that the reversing roller 510 rotates clockwise, the filming roller 310 is moved away from the power box 200 through the transmission of the chain set 520, and similarly, when the adjustment handwheel 530 is rotated counterclockwise, the reversing roller 510 rotates counterclockwise, and the filming roller 310 is moved toward the power box 200 through the transmission of the chain set 520. The reversing assembly 500 is used for further fine adjustment of the center function of the packaging film, for example, the position of the film hanging roller 310 may shift after long-time operation, even if the packaging film is positioned by the second tensioning portion 350, the problem of inconsistent splicing of the packaging film still exists, and at this time, the problem of shift generated by the film hanging roller 310 may be solved by the reversing assembly 500, so that the consistency of splicing of the packaging film is further ensured.

Wherein the chain set 520 includes: the film hanging device comprises a first gear 521 connected with one end of the reversing roller 510, a second gear 522 and a third gear 523 which are arranged in parallel with one end of the film hanging roller 310 and are positioned at two sides of one end of the film hanging roller 310, a guide gear 524 arranged between the second gear 522 and the third gear 523, and a rack 525 which is respectively meshed with the first gear 521, the second gear 522, the third gear 523 and the guide gear 524.

Further, in order to ensure the smoothness of the packaging film in the transmission process, the film receiving device further comprises a side film pressing brush 710 and a central film pressing brush 720; the side squeeze film brush 710 is connected to the power box 200 and located below the first guide roller 410 and the second guide roller 420, and the center squeeze film brush 720 is disposed on the base 100 and located between the first eccentric shaft 121 and the second eccentric shaft 122.

Further, a scale (not shown) is further included, and the scale is opened on the base 100 and located at the side of the first eccentric shaft 121 and the second eccentric shaft 122. Wherein the scale is 100-220(MM) in size, and provides a specific reference value for the arrangement of the connecting film.

Further, a plurality of transition rollers 800 are further included, and the transition rollers 800 are disposed on the bottom surface of the base 100 and below the first eccentric shaft 121, the second eccentric shaft 122 and the reversing roller 510. The packaging film can be transferred to different directions through a plurality of transition rollers 800, so that the film connecting requirements of different directions can be met.

The operation principle of the middle jointing membrane device of the present embodiment is explained in detail as follows:

on one hand, when the packaging film on one of the film hanging rollers 310 is about to be used up and the packaging film on the reversing roller 510 is about to be used up, the photoelectric switch 112 transmits a signal to the PLC controller to prepare for splicing a new packaging film on the other film hanging roller, and then the electromagnet 124 connected with the PLC controller further drives the pull rod 123 to pull one end of the first eccentric shaft 121, so that the first eccentric shaft 121 and the second eccentric shaft 122 which are originally separated are tightly attached to each other, and the start end of the new packaging film attached to the first eccentric shaft can be smoothly connected to the rear end of the packaging film which is about to run out, thereby completing automatic film splicing.

On the other hand, a packaging film is placed on the film hanging roller 310, and one end of the packaging film is positioned by the first tensioning block 342. When the adjusting knob 330 rotates clockwise, the moving shaft 320 rotates synchronously, the locking taper sleeve 354 on the moving shaft 320 presses the second tensioning block 351, so that the second tensioning block 351 protrudes to the moving groove 311 along the moving track, moves from the other end of the moving shaft 320 along the moving groove 311 toward the center of the moving shaft 320, and simultaneously the first tensioning block 342 moves from one end of the moving shaft along the moving groove 311 toward the center of the moving shaft 320. When the adjustment knob 330 is rotated counterclockwise, the second tension block 351 of the moving shaft 320 moves along the moving slot 311 from the center of the moving shaft 320 toward the other end of the moving shaft, and the first tension block 342 moves along the moving slot 311 from the center of the moving shaft 320 toward the one end of the moving shaft. When the second tensioning block 351 moves from the other end of the moving shaft 320 to the center of the moving shaft 320, the second tensioning block 351 is pressed by the locking taper sleeve 354 to slowly protrude out of the moving groove 311 and synchronously moves along the moving groove 311 to the other end face of the packaging film. Thereby realizing the positioning of the two ends of the packaging film.

On the other hand, when the film joining device is operated, the packaging film passes through the first guide roller 410 and the second guide roller 420, and the packaging film is driven to generate a downward force to drive one end of the first guide roller 410 and one end of the second guide roller 420 to move from the upper part of the limit block 470 to the lower part of the limit block 470, and at the same time, the movable block 460 pushes away the brake arm 430 abutted against the movable block, and the tension spring 450 connected with the brake arm 430 is pulled. When the film connecting device is static, the packaging film is not conveyed any more at this time, the force on the first guide roller 410 and the second guide roller 420 disappears, and then the tension spring 450 contracts to drive the brake arm 430 to rebound, so that the brake arm 430 is abutted against the movable block 460, one end of the first guide roller 410 and one end of the second guide roller 420 are abutted against the upper part of the limiting block 470, and braking is realized.

In yet another aspect, the adjusting handwheel 530 is rotated clockwise to rotate the reversing roller 510 clockwise, and the filming roller 310 is moved away from the power box 200 by the transmission of the chain set 520, and similarly, the reversing roller 510 is rotated counterclockwise when the adjusting handwheel 530 is rotated counterclockwise, and the filming roller 310 is moved toward the power box 200 by the transmission of the chain set 520, thereby further ensuring the accurate centering of the packaging film on the filming roller 310.

To sum up, the film connecting device provided by the utility model comprises a base, a film breaking detection component arranged on the base and a film connecting component connected with a power box; the broken membrane detection assembly comprises: the fixing frame is arranged on the base, and the photoelectric switch is arranged on the fixing frame; connect membrane module includes: the device comprises a first eccentric shaft, a second eccentric shaft, a pull rod and an electromagnet; the electromagnet is positioned in the power box, one end of the pull rod is connected with the electromagnet, the other end of the pull rod is connected with one end of the first eccentric shaft, one end of the second eccentric shaft is connected with one end of the first eccentric shaft, and the other end of the first eccentric shaft and the other end of the second eccentric shaft are both connected with the base. The utility model discloses a photoelectric switch among the detecting element send signal extremely connect the electro-magnet in the membrane module, by the first eccentric shaft of electro-magnet control and the second eccentric shaft pastes tightly, make the beginning of new packaging film be connected to smoothly and be about to the rear end of the packaging film of having run out to realize connecing the membrane automatically, the utility model provides an it can realize that the efficient connects the membrane automatically to connect the membrane device, saves manpower and the time that the membrane was traded in the manual work, prolongs continuous production's time, thereby has improved the packing efficiency of packaging film greatly.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims

1. A film connecting device comprises a base and a power box arranged on the base; the membrane breaking detection device is characterized by further comprising a membrane breaking detection assembly arranged on the base and a membrane connecting assembly connected with the power box;

2. The membrane connecting device according to claim 1, further comprising a membrane hanging assembly connected to the power box, the membrane hanging assembly comprising: the film hanging device comprises a film hanging roller, a moving shaft, an adjusting knob, a first tensioning part and a second tensioning part; the movable shaft is positioned in the center of the film hanging roller, one end of the film hanging roller and one end of the movable shaft are arranged in the power box, the adjusting knob is connected with the other end of the movable shaft, and the other end of the film hanging roller is abutted; the first tensioning portion is sleeved at one end of the moving shaft, the second tensioning portion is sleeved at the other end of the moving shaft, and the adjusting knob is used for adjusting the positions of the first tensioning portion and the second tensioning portion which are sleeved on the moving shaft.

3. The film connecting device according to claim 2, wherein the first tensioning portion comprises: the first tensioning block fixing seat, the first tensioning block, the first bearing gland and the first clamp spring are arranged on the first clamping ring; the first tensioning block fixing seat is connected with one end of the movable shaft, the first tensioning block is connected with the first tensioning block fixing seat, and the first bearing, the first bearing gland and the first clamp spring are sequentially connected with the power box.

4. The film connecting device according to claim 3, wherein a moving groove matched with the first tensioning portion and the second tensioning portion in shape is formed in the outer surface of the film hanging roller, and the second tensioning portion comprises: the second tensioning block, the tensioning sleeve, the second tensioning block fixing seat and the locking taper sleeve are arranged on the base; the tensioning sleeve is connected with the other end of the moving shaft, the second tensioning block fixing seat penetrates through the other end of the moving shaft and is arranged on the tensioning sleeve, one end of the locking taper sleeve penetrates through the tensioning sleeve and the second tensioning block and is connected with one end of the moving shaft, and the other end of the locking taper sleeve is connected with the adjusting knob; the second tensioning block fixing seat is provided with a moving track, and the second tensioning block is movably connected with the second tensioning block fixing seat through the moving track.

5. The membrane connecting device according to claim 4, further comprising a brake assembly connected to the power box; the brake assembly includes: the brake device comprises a first guide roller, a second guide roller, a brake arm, a brake block, a tension spring, a movable block and a limiting block; the stopper with the headstock is connected, extension spring one end sets up in the headstock, the other end with the brake block with brake arm one end is connected, the other end of brake arm with movable block looks butt, the one end of first guide roll with the one end of second guide roll is connected, just the one end of first guide roll with the one end of second guide roll with the stopper butt, the other end of first guide roll with the other end of second guide roll is connected, the one end of second guide roll with the movable block is connected.

6. The film connecting device according to claim 5, further comprising a reversing assembly connected to the power box; the commutation module comprises: the device comprises a reversing roller, a chain group, an adjusting hand wheel and an adjusting plate; the chain group is positioned in the power box, one end of the reversing roller is connected with the chain group, the other end of the reversing roller is connected with the adjusting hand wheel, and the adjusting plate is connected with the chain group and one end of the film hanging roller; and a groove corresponding to the position of the photoelectric switch is formed in the middle of the reversing roller.

7. The film connecting device according to claim 6, further comprising side lamination brushes and a central lamination brush; side press mold brush with the headstock is connected, and is located first guide roll and second guide roll below, center press mold brush sets up on the base, and be located between first eccentric shaft and the second eccentric shaft.

8. The film connecting device according to claim 1, further comprising a scale which is provided on the base and located at a side of the first eccentric shaft and the second eccentric shaft.

9. The film connecting device according to claim 6, further comprising a plurality of transition rollers disposed on the bottom surface of the base and below the first eccentric shaft, the second eccentric shaft and the reversing roller.