CN112093568A

CN112093568A - Film fold detection equipment based on second-level seamless connection

Info

Publication number: CN112093568A
Application number: CN202011115306.3A
Authority: CN
Inventors: 朱凯燏
Original assignee: Zhuji Aosu Machinery Design Studio
Current assignee: Zhuji Aosu Machinery Design Studio
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2020-12-18

Abstract

The invention relates to a film wrinkle detection device based on secondary seamless connection, which comprises: the device comprises a support frame, an unwinding roller and two groups of wrinkle detection devices, wherein the unwinding roller is rotatably arranged on the support frame, the two groups of wrinkle detection devices are respectively arranged on the support frame, and the two groups of wrinkle detection devices are sequentially arranged along the unwinding moving direction of the plastic film; the wrinkle detection device includes: free rotary drum, bracing piece, fixed connecting rod and a plurality of fold detect assembly, free rotary drum rotates and sets up on the support frame, and bracing piece and fixed connecting rod all set up on the support frame. The film wrinkle detection equipment based on the two-stage seamless connection disclosed by the invention can effectively avoid the missed detection of the film wrinkles, can accurately detect the positions of the film wrinkles and give corresponding alarm prompts according to different wrinkle positions, and ensures that a worker can quickly lock the positions of the wrinkles; and a plurality of film folds can be detected simultaneously and corresponding alarm prompts can be given respectively, thereby further avoiding the condition of missing detection.

Description

Film fold detection equipment based on second-level seamless connection

Technical Field

The invention relates to the technical field of plastic film production and processing, in particular to film wrinkle detection equipment based on secondary seamless connection.

Background

Plastic film is a very long, wide film structure that is typically stored by being wound onto a roll. When the novel paper roll needs to be used, the novel paper roll is unreeled out for use in a roll unreeling mode.

However, due to the long, wide and thin structural characteristics of the plastic film, wrinkles are easily generated in the production and processing processes of winding, unwinding and the like. When the plastic film with folds is subjected to subsequent processing production, the processed product has a high reject ratio, and the material of the plastic film is also greatly wasted.

Therefore, it is necessary to perform wrinkle detection before the plastic film is used, and to perform corresponding flattening processing on the detected wrinkles. The folds are flattened and then processed in the next procedure, so that the reject ratio of the product is effectively reduced, and the waste of plastic film materials is reduced.

Because the plastic film has the structural characteristics of being long, wide and thin, if the worker identifies and searches the wrinkles by human eyes, on one hand, the efficiency is very low, and on the other hand, the condition of missing detection is very easy to exist.

In order to improve fold detection efficiency and reduce missing detection probability, equipment is generally adopted to detect folds at present. In the prior art, the equipment for detecting the folds of the plastic film is easy to miss detection of the folds with smaller area. In addition, in the prior art, the device for detecting the folds of the plastic film can only detect the condition that the thickness of the folds is relatively thick, and the folds with relatively thin thickness cannot be detected, so that the condition of missing detection also exists.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides film wrinkle detection equipment based on secondary seamless connection, which effectively avoids the omission of film wrinkles, can accurately detect the positions of the film wrinkles and give corresponding alarm prompts according to different wrinkle positions, and ensures that workers can quickly lock the positions of the wrinkles; and a plurality of film folds can be detected simultaneously and corresponding alarm prompts can be given respectively, thereby further avoiding the condition of missing detection.

The purpose of the invention is realized by the following technical scheme:

film fold check out test set based on second grade seamless joint includes: the device comprises a support frame, an unwinding roller and two groups of wrinkle detection devices, wherein the unwinding roller is rotatably arranged on the support frame, the two groups of wrinkle detection devices are respectively arranged on the support frame, and the two groups of wrinkle detection devices are sequentially arranged along the unwinding moving direction of the plastic film;

the wrinkle detection device includes: the device comprises a free rotary drum, a support rod, a fixed connecting rod and a plurality of wrinkle detection assemblies, wherein the free rotary drum is rotatably arranged on a support frame, and the support rod and the fixed connecting rod are both arranged on the support frame;

the wrinkle detection assembly includes: the free rotary drum comprises a pressing rotary wheel, a connecting piece, a spring and a rotating action rod, wherein the pressing rotary wheel is arranged above the free rotary drum and is rotatably connected with the connecting piece, and the connecting piece is connected with the supporting rod through the spring; the rotating action rod is provided with a fixed connecting end and a free action end, and the fixed connecting end is connected with the connecting piece; the rotating action rod is also pressed on the fixed connecting rod and rotates by taking the fixed connecting rod as a fulcrum;

the pressing rotating wheels of the two groups of fold detection devices are arranged in a staggered manner;

the film wrinkle detection equipment based on the secondary seamless joint further comprises an alarm device, and the alarm device comprises an alarm prompting mechanism; the alarm prompting mechanism comprises a first power supply and a plurality of LED warning branches which are mutually connected in parallel, and the plurality of LED warning branches are connected with the first power supply after being connected in parallel; the LED warning branch comprises an LED warning lamp and a normally open switch which are connected in series;

the normally open switch with free action end one-to-one, just normally open switch sets up the below of free action end, free action end pressure hold in normally open switch or with normally open switch separation.

In one embodiment, the film wrinkle detection device based on the secondary seamless connection further comprises an unwinding driving motor, wherein the unwinding driving motor drives the plastic film to move so as to indirectly drive the unwinding roller to unwind the plastic film;

the alarm device further comprises a stopping mechanism, the stopping mechanism comprises a second power supply and a plurality of normally closed switches connected in series, and the second power supply, the normally closed switches and the unreeling driving motor form a series loop; the normally closed switches are in one-to-one correspondence with the free action ends, the normally closed switches are arranged below the free action ends, and the free action ends are pressed on the normally closed switches or separated from the normally closed switches.

In one embodiment, the alarm prompting mechanism further comprises a buzzer, and the LED warning branches are connected in parallel and then connected in series with the buzzer.

In one embodiment, a plurality of the pressure rollers are arranged in sequence along the central axis of the free rotating cylinder.

In one embodiment, the fixed link is provided with a plurality of limiting grooves, the limiting grooves correspond to the rotating action rods one by one, and the rotating action rods are pressed and held in the limiting grooves.

In one embodiment, the limiting groove is of an annular structure, and the limiting groove is arranged along the radial direction of the fixed connecting rod.

In one embodiment, the free drum is arranged parallel to the fixed link.

In one embodiment, the rotary action lever is inclined gradually upward from the fixed attachment end to the free action end.

In one embodiment, the connecting member is of a U-shaped structure, and the pressing rotating wheel is rotatably clamped in a U-shaped groove of the U-shaped structure of the connecting member.

In one embodiment, the support frame has a first support seat, a second support seat and a third support seat arranged in sequence, the unwinding roller is rotatably disposed on the first support seat, and the two sets of wrinkle detection devices are disposed on the second support seat and the third support seat in a one-to-one correspondence manner respectively.

The film wrinkle detection equipment based on the two-stage seamless connection disclosed by the invention can effectively avoid the missed detection of the film wrinkles, can accurately detect the positions of the film wrinkles and give corresponding alarm prompts according to different wrinkle positions, and ensures that a worker can quickly lock the positions of the wrinkles; and a plurality of film folds can be detected simultaneously and corresponding alarm prompts can be given respectively, thereby further avoiding the condition of missing detection.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram (I) of a second-level seamless joint-based film wrinkle detection device according to the present invention;

FIG. 2 is a schematic structural diagram of a second seamless joint-based film wrinkle detection apparatus according to the present invention (II);

FIG. 3 is a schematic structural diagram (III) of a second seamless joint-based film wrinkle detection device according to the present invention;

FIG. 4 is a schematic view of a portion of the structure of FIG. 1;

FIG. 5 is a schematic structural diagram (one) of the wrinkle detection device shown in FIG. 4;

FIG. 6 is a schematic structural diagram (II) of the wrinkle detection device shown in FIG. 4;

FIG. 7 is a schematic structural diagram (III) of the wrinkle detection device shown in FIG. 4;

FIG. 8 is a circuit diagram of the alarm notification mechanism of the present invention;

fig. 9 is a circuit diagram of the shutdown mechanism of the present invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, fig. 2 and fig. 3, the present invention discloses a two-stage seamless joining-based film wrinkle detection apparatus 10, which includes: support frame 20, unreel cylinder 30 and two sets of fold detection device 50, unreel cylinder 30 and rotate and set up on support frame 20, and two sets of fold detection device 50 set up respectively on support frame 20, and two sets of fold detection device 50 unreel the direction of removal along plastic film 100 and arrange in proper order.

As shown in fig. 4, specifically, the wrinkle detection device 50 includes: free rotary drum 200, bracing piece 300, fixed connecting rod 400 and a plurality of fold detection subassembly 500, free rotary drum 200 rotates and sets up on support frame 20, and bracing piece 300 and fixed connecting rod 400 all set up on support frame 20. As shown in fig. 5, 6, and 7, the wrinkle detection module 500 includes: the pressing and holding rotating wheel 510 is arranged above the free rotating cylinder 200, the pressing and holding rotating wheel 510 is rotatably connected with the connecting piece 520, and the connecting piece 520 is connected with the supporting rod 300 through the spring 530. The rotating action bar 540 has a fixed connection end 541 and a free action end 542, and the fixed connection end 541 is connected with the connecting member 520. The rotating action lever 540 is also pressed against the fixed link 400, and the rotating action lever 540 rotates about the fixed link 400 as a fulcrum. Moreover, the pressing rollers 510 of the two sets of wrinkle detection devices 50 are arranged in a staggered manner, so that the pressing rollers 510 of the two sets of wrinkle detection devices 50 form seamless connection; in the unwinding process, the plastic film 100 is subjected to comprehensive wrinkle detection when passing through the two groups of wrinkle detection devices 50, and omission does not occur.

If there is only one set of wrinkle detection devices 50, even if the plurality of pressing rollers 510 of the set of wrinkle detection devices 50 are arranged close to each other, there will still be gaps between two adjacent pressing rollers 510; the plastic film 100 passes through the gap between the pressing rollers 510 and is not detected if the wrinkles of the plastic film 100 just pass through the gap. Due to the staggered structure design of the pressing rotating wheels 510 of the two sets of wrinkle detection devices 50, the pressing rotating wheels 510 of the two sets of wrinkle detection devices 50 just make up the gap between the two sets of wrinkle detection devices 50, so that the pressing rotating wheels 510 of the two sets of wrinkle detection devices 50 form seamless connection, and seamless detection is performed on the plastic film 100.

As shown in fig. 8, in particular, the film wrinkle detection device 10 based on the secondary seamless joining further includes an alarm device, and the alarm device includes an alarm prompt mechanism 610. The alarm prompting mechanism 610 includes a first power supply 611 and a plurality of LED warning branches connected in parallel, and the plurality of LED warning branches are connected in parallel and then connected to the first power supply 611. The LED warning branch comprises a series LED warning light 612 and a normally open switch 613. The normally open switches 613 are in one-to-one correspondence with the free acting ends 542 (as shown in fig. 5), the normally open switches 613 are disposed below the free acting ends 542, and the free acting ends 542 are pressed against the normally open switches 613 or separated from the normally open switches 613.

As shown in fig. 9, specifically, the second-level seamless-connection-based film wrinkle detection apparatus 10 further includes an unwinding driving motor 40, and the unwinding driving motor 40 drives the plastic film 100 to move so as to indirectly drive the unwinding roller 30 to unwind the plastic film 100. The alarm device further comprises a stopping mechanism 620, the stopping mechanism 620 comprises a second power supply 621 and a plurality of normally closed switches 622 connected in series, and the second power supply 621, the plurality of normally closed switches 622 and the unwinding driving motor 40 form a series loop. Normally closed switches 622 are in one-to-one correspondence with free-acting ends 542 (shown in fig. 5), with normally closed switches 622 disposed below free-acting ends 542, and free-acting ends 542 being pressed against normally closed switches 622 or separated from normally closed switches 622.

As shown in fig. 1 and 2, in a preferred embodiment, the supporting frame 20 has a first supporting seat 210, a second supporting seat 220 and a third supporting seat 230 arranged in sequence, the unwinding roller 30 is rotatably disposed on the first supporting seat 210, and the two sets of wrinkle detection devices 50 are respectively disposed on the second supporting seat 220 and the third supporting seat 230 in a one-to-one correspondence manner.

As shown in fig. 8, specifically, the alarm prompting mechanism 610 further includes a buzzer 614, and the LED warning branches are connected in parallel and then connected in series with the buzzer 614.

Specifically, as shown in fig. 6, a plurality of pressure rollers 510 are arranged in order along the central axis of the free rotating cylinder 200. And, the free drum 200 is disposed in parallel with the fixed link 400.

As shown in fig. 6 and 7, in particular, the fixing link 400 is provided with a plurality of limiting grooves 410, the limiting grooves 410 correspond to the rotating action rods 540 one to one, and the rotating action rods 540 are pressed and held in the limiting grooves 410. In a preferred embodiment, the limiting groove 410 has an annular structure, and the limiting groove 410 is disposed in a radial direction of the fixing link 400. In a preferred embodiment, the rotation action lever 540 is gradually inclined upward from the fixed attachment end 541 toward the free action end 542.

As shown in fig. 6, in particular, the connecting member 520 is a U-shaped structure, and the pressure roller 510 is rotatably clamped in a U-shaped groove of the U-shaped structure of the connecting member 520.

The operation of the second-level seamless film wrinkle detection apparatus 10 will be described below (see fig. 1 to 9):

in a normal unwinding state, the whole loop of the shutdown mechanism 620 is closed, that is, the normally closed switches 622 are both in a closed state, and the second power supply 621 supplies power to the unwinding driving motor 40; at this time, the unreeling driving motor 40 normally outputs and drives the plastic film 100 to move, so that the unreeling roller 30 is indirectly driven to continuously rotate to continuously unreel the plastic film 100; in the practical application process, the unwinding driving motor 40 can drive the winding roller to realize the movement of the plastic film 100;

after being unwound from the unwinding roller 30, the plastic film 100 is subjected to wrinkle detection by the wrinkle detection device 50; specifically, the plastic film 100 extends to the free rotating cylinder 200 after being unwound from the unwinding roller 30; at this time, the pressing roller 510 presses and holds the plastic film 100, so that the pressing roller 510 and the free drum 200 form a clamping and conveying structure for the plastic film 100; in the continuous unreeling process of the plastic film 100, the pressing rotary wheel 510 and the free rotary drum 200 are driven by the plastic film 100 to rotate continuously; meanwhile, the circuit of the alarm prompting mechanism 610 is in a disconnected state, all the LED warning lamps 612 are in an off state at this time, and the buzzer 614 does not give out an alarm sound;

when the plastic film 100 has wrinkles, when the wrinkles pass through the place where the pressure-holding rotating wheel 510 is engaged with the free rotating drum 200; since the height of the wrinkles is higher than the height of the plastic film 100 in the flattened state, when the wrinkles pass through the matching part of the pressure roller 510 and the free drum 200, the wrinkles jack up the pressure roller 510 in contact with the wrinkles; when the pressing roller 510 is jacked by the folds, the pressing roller 510 drives the connecting member 520 and the fixed connecting end 541 of the rotating action rod 540 to move upwards together; since the rotating action rod 540 is pressed and held on the fixed link 400, the rotating action rod 540 rotates with the fixed link 400 as a fulcrum; that is, when the fixed connection end 541 of the rotating action rod 540 moves upward, the free action end 542 of the rotating action rod 540 correspondingly moves downward; when the free acting end 542 of the rotating action rod 540 moves downwards, the corresponding normally open switch 613 is pressed and held, so that the corresponding normally open switch enters a closed state; thus, the normally open switch 613, the LED warning light 612, the buzzer 614 and the first power supply 611 corresponding to the normally open switch 613 form a closed loop, so that the corresponding LED warning light 612 is turned on, and the buzzer 614 emits an alarm sound;

when the free end 542 of the rotating action rod 540 moves downwards, the rotating action rod presses the corresponding normally closed switch 622, so that the normally closed switch 622 is driven to be switched off; when the normally closed switch 622 is turned off, the whole loop of the shutdown mechanism 620 is turned off, so that the unwinding driving motor 40 is powered off, and the unwinding driving motor 40 stops outputting, so that the plastic film 100 stops unwinding;

it should be particularly noted that, in actual use, the LED warning lamps 612 are numbered sequentially, and then the corresponding pressure-holding rotating wheels 510 are divided and correspond to the transverse (perpendicular to the moving direction of the plastic film 100) positions of the plastic film 100, so that the positions of the plastic film 100 and the LED warning lamps 612 are in one-to-one correspondence; therefore, when the wrinkles are detected, the positions of the wrinkles can be quickly corresponded according to the numbers of the lighted LED warning lamps 612 directly, and the time for workers to search the wrinkles is saved; certainly, if a plurality of wrinkles exist at the same time, a plurality of LED warning lights 612 are correspondingly lighted to remind the staff of flattening treatment, so as to avoid omission; according to the invention, the wrinkle detection is carried out through the plurality of groups of wrinkle detection assemblies 500, so that very small wrinkles can be detected, and the detection precision is high; moreover, a plurality of folds can be detected simultaneously, and a plurality of LED warning lamps 612 are correspondingly lighted for alarming, so that the omission phenomenon is avoided; for the plastic film 100 with the same width, the more the pressing rollers 510 are arranged, the higher the precision of wrinkle detection is; in the present invention, the number of the pressing rollers 510 can be adaptively adjusted according to the width of the plastic film 100 and the requirement of the detection precision;

it should be further noted that, when the wrinkle area of the plastic film 100 is small and just passes through the gap of the pressing roller 510 of the wrinkle detection device 50 close to the unwinding roller 30, the wrinkle detection device 50 close to the unwinding roller 30 cannot detect the wrinkle, and therefore the wrinkle detection device 50 does not give an alarm; therefore, the plastic film 100 continues to move forward until the wrinkle moves to the wrinkle detection device 50 far away from the unwinding roller 30, and moves to just below one pressing roller 510 of the wrinkle detection device 50 and jacks up the pressing roller 510; thus, the wrinkle detection device 50 far away from the unwinding roller 30 detects the wrinkle and performs corresponding alarm prompt; therefore, the structure design that the pressing rollers 510 of the two sets of wrinkle detection devices 50 are arranged in a staggered manner enables the pressing rollers 510 of the two sets of wrinkle detection devices 50 to just make up the gap between the pressing rollers 510, so that the pressing rollers 510 of the two sets of wrinkle detection devices 50 are in seamless connection, and seamless detection is performed on the plastic film 100;

it should be noted that, in particular, the design that the connecting member 520 is connected to the supporting rod 300 through the spring 530, so as to dispose the pressure roller 510 above the free drum 200; so as to achieve the purpose of clamping and conveying the plastic film 100 by the cooperation of the pressure roller 510 and the free drum 200, and at the same time, ensure that the pressure roller 510 can be lifted upwards under the action of the wrinkles (at this time, the spring 530 is compressed and deformed) when the wrinkles of the plastic film 100 are detected; when the pressure roller 510 is lifted upwards, the fixed connection end 541 is indirectly driven to move upwards through the connection member 520, so that the rotation action rod 540 rotates; when the free acting end 542 moves downwards, the free acting end abuts against a normally open switch 613 below the free acting end, so that the normally open switch 613 is driven to be closed, and the corresponding LED warning lamp 612 is lightened and the buzzer 614 gives out an alarm sound; in addition, when the free acting end 542 moves downwards, the normally closed switch 622 below is pressed, so that the normally closed switch 622 is driven to be switched off, the unwinding driving motor 40 is powered off, and the plastic film 100 stops unwinding; the plastic film 100 is still to wait for a worker to quickly find out folds according to the corresponding indicated positions of the lighted LED warning lamps 612 and flatten the corresponding folds;

it should be further noted that the fixed connecting rod 400 is provided with a plurality of limiting grooves 410, the limiting grooves 410 correspond to the rotating action rods 540 one by one, and the rotating action rods 540 are pressed and held in the limiting grooves 410; this allows the rotating action bar 540 to rotate stably along the fixed link 400 without deflection, thus ensuring that the free action end 542 of the rotating action bar 540 accurately closes the normally open switch 613 therebelow and accurately opens the normally closed switch 622 therebelow; ensuring the accuracy of the alarm and ensuring that the normally closed switch 622 is stably turned off;

according to the characteristic that the fold thickness of the plastic film 100 is thicker than the thickness in a flattened state, the increase of the thickness of the plastic film 100 is converted into upward movement of the pressure-holding rotating wheel 510, the rotation of the rotating action rod 540 is driven by the upward movement of the pressure-holding rotating wheel 510, and the normally open switch 613 is driven to be closed by the rotation of the rotating action rod 540, so that the LED warning lamp 612 is turned on, and the buzzer 614 gives an alarm sound; meanwhile, the normally closed switch 622 is driven to be switched off by the rotation of the rotating action rod 540, so that the plastic film 100 is stopped being unreeled at the moment when the wrinkles are detected; the invention has the advantages of direct and close fit of all structures, good stability, high fold detection precision and accurate positioning.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A film fold check out test set based on second grade seamless joint, its characterized in that includes: the device comprises a support frame, an unwinding roller and two groups of wrinkle detection devices, wherein the unwinding roller is rotatably arranged on the support frame, the two groups of wrinkle detection devices are respectively arranged on the support frame, and the two groups of wrinkle detection devices are sequentially arranged along the unwinding moving direction of the plastic film;

2. The film wrinkle detection device based on the secondary seamless connection as claimed in claim 1, further comprising an unwinding driving motor, wherein the unwinding driving motor drives the plastic film to move so as to indirectly drive the unwinding roller to unwind the plastic film;

3. The two-stage seamless joint-based film wrinkle detection device according to claim 2, wherein the alarm prompting mechanism further comprises a buzzer, and the LED warning branches are connected in parallel and then connected in series with the buzzer.

4. The apparatus according to claim 2, wherein a plurality of the pressure rollers are sequentially arranged along a central axis of the free drum.

5. The apparatus according to claim 4, wherein the fixed link has a plurality of limiting grooves, the limiting grooves correspond to the rotation action bars one to one, and the rotation action bars are pressed and held in the limiting grooves.

6. The apparatus according to claim 5, wherein the limiting groove is of an annular structure and is disposed along a radial direction of the fixing link.

7. The apparatus according to claim 3, wherein the free drum is parallel to the fixed link.

8. The apparatus according to claim 7, wherein the rotating action bar is gradually inclined upward from the fixed connection end to the free action end.

9. The apparatus according to claim 8, wherein the connecting member is of a U-shaped structure, and the pressing wheel is rotatably clamped in a U-shaped groove of the U-shaped structure of the connecting member.

10. The apparatus according to claim 2, wherein the supporting frame has a first supporting seat, a second supporting seat and a third supporting seat arranged in sequence, the unwinding roller is rotatably disposed on the first supporting seat, and the two sets of wrinkle detection devices are disposed on the second supporting seat and the third supporting seat in a one-to-one correspondence respectively.