CN112092344A

CN112092344A - Film penetrating device

Info

Publication number: CN112092344A
Application number: CN202010852097.4A
Authority: CN
Inventors: 张春华; 秦志红; 白汝佳; 杨丁卯; 陈诚发
Original assignee: Guangdong Simcheng Plastics Machinery Co Ltd
Current assignee: Guangdong Simcheng Plastics Machinery Co Ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2020-12-18

Abstract

The invention discloses a film penetrating device, which comprises a frame and a plurality of working rollers arranged on the frame, and further comprises: the driving motor is in driving connection with a driving chain wheel and drives the driving chain wheel to rotate; the film penetrating chain wheels are connected with the working rollers in a one-to-one correspondence mode through bearings, and all the film penetrating chain wheels are arranged at the same end of the working rollers; the transmission chain is in a closed loop shape and is in transmission connection with all the film penetrating chain wheels and the driving chain wheel; a chain tensioner around which the path of the drive chain is routed, the chain tensioner for maintaining the drive chain in a tensioned state. The invention provides a device capable of automatically penetrating a film.

Description

Film penetrating device

Technical Field

The invention relates to the field of film conveying, in particular to a chain tensioning device and automatic film penetrating equipment using the same.

Background

Before the film is longitudinally stretched, the film sheet needs to be threaded on a longitudinal stretching roller group, so that the film can be stretched by the stretching roller group. At present, people still mainly wear the membrane by hands, and the membrane wearing is time-consuming and labor-consuming. When the membrane is penetrated by hands, the roll group which works due to human errors when the membrane is penetrated by the hands possibly moves, on one hand, the membrane is possibly stretched artificially before being stretched, on the other hand, the risk of human misoperation exists when the membrane is penetrated by the hands, on the other hand, a certain switch is possibly touched by mistake, the working roll moves, and the user is injured by clamping, on the other hand, the roller is heated by high-temperature oil in the spiral flow channel before the membrane is penetrated, the surface temperature of the roller is higher than 100 ℃, and the membrane is required to be heated fully, so that the gap between the roller and the roll is very small, the hands cannot directly pull the membrane to pass, and the risk of scalding is caused when the membrane is penetrated by the hands.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: at least one problem addressed above is solved by providing a device that is capable of automated membrane threading.

The solution of the invention for solving the technical problem is as follows:

the utility model provides a film threading device, includes frame and many working rolls of setting in the frame, still includes: the driving motor is in driving connection with a driving chain wheel and drives the driving chain wheel to rotate;

the film penetrating chain wheels are connected with the working rollers in a one-to-one correspondence mode through bearings, and all the film penetrating chain wheels are arranged at the same end of the working rollers;

the transmission chain is in a closed loop shape and is in transmission connection with all the film penetrating chain wheels and the driving chain wheel;

a chain tensioner around which the path of the drive chain is routed, the chain tensioner for maintaining the drive chain in a tensioned state.

As a further improvement of the above technical solution, the chain tensioner includes a tensioning frame, a plurality of fixed pulleys arranged along the left-right direction on the tensioning frame, an upper guide bar, a lower guide bar, a counterweight block, and a movable pulley extending along the upper-lower direction, wherein the counterweight block is connected in a sliding manner with the upper guide bar and the lower guide bar, the upper guide bar and the lower guide bar are fixedly connected with the tensioning frame, one movable pulley is arranged between every two adjacent fixed pulleys, the movable pulley is connected with the counterweight block through a shaft body, and the transmission chain sequentially and alternately passes through the fixed pulleys and the movable pulley from the fixed pulley at the rightmost end until passing through the fixed pulley at the leftmost end.

As a further improvement of the above technical solution, the weight member comprises a slider and a weight, the slider is provided with a guide hole, the guide hole is in sliding fit with the upper and lower guide rods, the movable pulley is connected with the slider through circumferential connection, and the weight is symmetrically arranged on the left side and the right side of the slider respectively.

As a further improvement of the above technical solution, an upper limit block and a lower limit block are provided on the tensioning frame, the upper limit block and the lower limit block are respectively fixedly connected to the tensioning frame, each of the weights is provided with an upper limit block and a lower limit block, and one of the weights is disposed between one of the upper limit blocks and one of the lower limit blocks.

As a further improvement of the above technical solution, the surfaces of the upper limit block and the lower limit block facing each other are respectively provided with a recess, and the weight and the recesses are arranged in a mutually matched manner.

As a further improvement of the technical scheme, the working rolls are divided into a preheating roll group, a stretching roll group and a shaping roll group from left to right in turn by taking a plurality of adjacent working rolls as a group.

As a further improvement of the above technical scheme, be equipped with a plurality of leading sprocket in the frame, set up at least one leading sprocket between drive sprocket and the work roll, the work roll with set up at least one leading sprocket between the chain tensioning ware, chain tensioning ware with set up at least one leading sprocket between the drive sprocket, drive chain walks around in proper order leading sprocket, drive sprocket, the leading sprocket between drive sprocket and the chain tensioning ware, chain tensioning ware and the work roll between work roll, work roll and the drive sprocket, and drive chain end to end forms the annular.

As a further improvement of the technical scheme, each working roller is connected with a working motor in a linkage mode, the working motors drive the working rollers to rotate in a one-to-one correspondence mode, and the working motors are fixedly connected with the rack.

As a further improvement of the above technical solution, a travel switch is provided on the tensioning frame, and the travel switch is used for sensing the position of the counterweight block.

The invention has the beneficial effects that: when the film threading device is used, a user can bind a part of a film to be threaded on the working roller, for example, one corner of the film is bound on the transmission chain, the film is arranged at the upstream of the working roller, the driving chain wheel is driven by the driving motor to rotate so as to drive the transmission chain and the film threading chain wheel to move, the film is wound on the working roller along with the movement of the transmission chain, and the film threading chain wheel is connected with the working roller through a bearing, so that the rotation of the working roller and the rotation of the film threading chain wheel are independent and do not interfere with each other, and the film threading can be carried out under the condition of no rotation; when a user ties the film to be filmed on the transmission chain, a gap exists between the transmission chain and the film-threading chain wheel, and the transmission chain can continuously apply pretightening force to the film-threading chain wheel through the arrangement of the chain tensioner.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic structural view of the chain tensioner of the present invention;

FIG. 3 is a side schematic view of a work roll and drive sprocket of one embodiment of the present invention.

In the drawings: 1-working roll, 11-preheating roll group, 12-stretching roll group, 13-shaping roll group, 20-driving motor, 21-film-passing chain wheel, 40-driving chain, 50-chain tensioner, 51-tensioning frame, 52-fixed pulley, 53-movable pulley, 54-upper and lower guide rods, 55-balancing weight, 551-sliding block, 552-heavy object, 61-upper limiting block, 62-lower limiting block, 70-recess, 80-guiding chain wheel and 100-travel switch.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1 to 3, a film threading device includes a frame and a plurality of working rolls 1 disposed on the frame, and further includes: the driving motor 20 is connected with a driving chain wheel in a driving way, and the driving chain wheel is driven to rotate by the driving motor 20;

the film penetrating chain wheels 21 are connected with the working rolls 1 in a one-to-one correspondence mode through bearings, and all the film penetrating chain wheels 21 are arranged at the same end of the working rolls 1;

the transmission chain 40 is in a closed loop shape, and the transmission chain 40 is in transmission connection with all the film penetrating chain wheels 21 and the driving chain wheel;

a chain tensioner 50 around which the path of the drive chain 40 is wound, the chain tensioner 50 being used to maintain the drive chain 40 in a tensioned state.

In this embodiment, when in use, a user can bind a part of the film to be subjected to film threading on the working roll 1, for example, a corner of the film on the transmission chain 40, and set the film upstream of the working roll 1, and drive the driving sprocket to rotate through the driving motor 20 to drive the transmission chain 40 and the film threading sprocket 21 to move, so that the film winds on the working roll 1 along with the movement of the transmission chain 40, and the film threading sprocket 21 is connected with the working roll 1 through a bearing, so that the rotations of the working roll 1 and the film threading sprocket 21 are independent and do not interfere with each other, and further the film threading can be performed under the condition of no rotation; when a user binds the film to be perforated on the transmission chain 40, a gap exists between the transmission chain 40 and the film perforation sprocket 21, and the transmission chain 40 can continuously apply pre-tightening force to the film perforation sprocket 21 through the arrangement of the chain tensioner 50.

In actual use, the user can cut the film bound to the driving chain 40 after the film passes around all the working rolls 1.

Further as a preferred embodiment, the chain tensioner 50 includes a tensioning frame 51, a plurality of fixed pulleys 52 fixed on the tensioning frame 51 and arranged in the left-right direction, an upper and lower guide rod 54 extending in the up-down direction, a weight 55, and a movable pulley 53, wherein the weight 55 is slidably connected to the upper and lower guide rods 54, the upper and lower guide rods 54 are fixedly connected to the tensioning frame 51, one movable pulley 53 is disposed between every two adjacent fixed pulleys 52, the movable pulley 53 is connected to the weight 55 through a shaft, and the transmission chain 40 sequentially and alternately passes through the fixed pulleys 52 and the movable pulleys 53 from the rightmost fixed pulley 52 to pass through the leftmost fixed pulley 52. The structure is simple, the arrangement is convenient, the upper and lower guide rods 54 are used for guiding the balancing weight 55, the movement of the balancing weight is not influenced by the force of the transmission chain 40, the speed along the direction of the transmission chain 40 is achieved, the movable pulley 53 is arranged on the balancing weight 55, the transmission chain 40 sequentially and alternately passes through the fixed pulley 52 and the movable pulley 53 from the fixed pulley 52 at the rightmost end to the fixed pulley 52 at the leftmost end, and the transmission chain 40 is kept tensioned under the action of the gravity of the balancing weight 55.

In a preferred embodiment, the weight member 55 includes a slider 551 and a weight 552, the slider 551 has a guide hole slidably engaged with the upper and lower guide rods 54, the movable pulley 53 is circumferentially connected to the slider 551, and the weights 552 are symmetrically disposed on both sides of the slider 551. The structure is simple, convenient to set, and is more stable through the structure.

Further as a preferred embodiment, the tensioning frame 51 is provided with an upper limit block 61 and a lower limit block 62, the upper limit block 61 and the lower limit block 62 are respectively and fixedly connected with the tensioning frame 51, each of the weights 552 is provided with an upper limit block and a lower limit block 62, and one of the weights 552 is arranged between one of the upper limit blocks 61 and one of the lower limit blocks 62. This simple structure, setting are convenient, and through the setting of this structure, the interval restriction of heavy object 552 motion is between last stopper 61 and lower stopper 62, effectively improves the security performance.

In a further preferred embodiment, the facing surfaces of the upper limit block 61 and the lower limit block 62 are respectively provided with a recess 70, and the weight 552 and the recess 70 are adapted to each other. The structure is simple, the arrangement is convenient, the contact area of the recess 70 and the weight 552 can be effectively increased, and the stress of the recess 70 and the weight 552 in contact is reduced.

Further, as a preferred embodiment, of all the working rolls 1, the groups are divided into a preheating roll group 11, a stretching roll group 12 and a shaping roll group 13 in groups of several adjacent working rolls 1 from left to right. This simple structure, setting convenience, through the setting of this structure, accomplish at the film and wear the membrane backshell and carry out longitudinal stretching to the film.

Further as preferred embodiment, be equipped with a plurality of leading sprocket 80 in the frame, set up at least one leading sprocket 80 between driving sprocket and the work roll 1, the work roll 1 with set up at least one leading sprocket 80 between chain tensioner 50, chain tensioner 50 with set up at least one leading sprocket 80 between the driving sprocket, drive chain 40 walks around in proper order leading sprocket 80 between work roll 1, work roll 1 and the driving sprocket, leading sprocket 80 between driving sprocket, driving sprocket and the chain tensioner 50, the leading sprocket 80 between chain tensioner 50 and the work roll 1, and drive chain 40 end to end forms the annular. This simple structure, convenient to set up, when through this leading sprocket 80, on the one hand can lead to drive chain 40 and make drive chain 40's motion smooth and easy, avoid drive chain 40 to carry out the turning to of great angle, on the other hand, make drive sprocket can be followed superior angle and twined through to chain tensioning ware 50, driving sprocket, working roll 1 etc..

Further as preferred embodiment, each work roller 1 linkage is connected with a work motor, the work motors drive the work rollers 1 to rotate in a one-to-one correspondence manner, and the work motors are fixedly connected with the rack. This simple structure, setting are convenient, and through the setting of this structure, each work roll 1 all can be driven by a work motor, during the use, can facilitate the use regulate and control alone each work roll 1's slew velocity.

Further, as a preferred embodiment, a travel switch 100 is disposed on the tensioning frame 51, and the travel switch 100 is used for sensing the position of the counterweight 55. The height of the weight block 55 can be determined by setting the travel switch 100, and a user can determine whether the maximum pre-tightening amount of the transmission chain 40 is reached according to the height of the weight block 55.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.

Claims

1. The utility model provides a film threading device, includes frame and many work rolls (1) of setting in the frame, its characterized in that still includes:

the driving motor (20), the driving motor (20) is connected with a driving chain wheel in a driving mode, and the driving chain wheel is driven to rotate by the driving motor (20);

the film penetrating chain wheels (21) are connected with the working rolls (1) in a one-to-one correspondence mode through bearings, and all the film penetrating chain wheels (21) are arranged at the same end of the working rolls (1);

the transmission chain (40) is of a closed loop type, and the transmission chain (40) is in transmission connection with all the film penetrating chain wheels (21) and the driving chain wheel;

a chain tensioner (50) around which the path of the drive chain (40) is routed, the chain tensioner (50) being used to maintain the drive chain (40) in tension.

2. The film threading device according to claim 1, wherein the chain tensioner (50) comprises a tensioning frame (51), a plurality of fixed pulleys (52) fixed on the tensioning frame (51) and arranged along the left-right direction, an upper guide rod (54) and a lower guide rod (54) extending along the up-down direction, a balancing weight (55) and a movable pulley (53), the balancing weight (55) is connected with the upper and lower guide rods (54) in a sliding way, the upper and lower guide rods (54) are fixedly connected with the tensioning rack (51), one movable pulley (53) is arranged between every two adjacent fixed pulleys (52), the movable pulley (53) is connected with the balancing weight (55) through a shaft body, and the transmission chain (40) sequentially and alternately passes through the fixed pulley (52) and the movable pulley (53) from the fixed pulley (52) at the rightmost end to pass through the fixed pulley (52) at the leftmost end.

3. The thin film perforating device as claimed in claim 2, characterized in that the weight block (55) comprises a slider (551) and a weight (552), the slider (551) is provided with a guide hole, the guide hole is slidably matched with the upper and lower guide rods (54), the movable pulley (53) is circumferentially connected with the slider (551), and the weight (552) is symmetrically arranged on the left and right sides of the slider (551) respectively.

4. A film threading device according to claim 3, characterized in that an upper limit block (61) and a lower limit block (62) are provided on said tension frame (51), said upper limit block (61) and said lower limit block (62) are respectively fixedly connected to said tension frame (51), each of said weights (552) is provided with an upper limit block and a lower limit block (62), and one of said weights (552) is provided between one upper limit block (61) and one lower limit block (62).

5. A thin film threading device according to claim 4, characterized in that the surfaces of the upper limiting block (61) and the lower limiting block (62) facing each other are respectively provided with a recess (70), and the weight (552) and the recess (70) are mutually matched.

6. A film threading device according to claim 1, characterized in that, among all the working rolls (1), the adjacent working rolls (1) are divided into a preheating roll group (11), a stretching roll group (12) and a shaping roll group (13) in turn from left to right in a group.

7. A device for threading film according to claim 1, characterized in that a plurality of guide sprockets (80) are provided on said frame, at least one guide chain wheel (80) is arranged between the driving chain wheel and the working roll (1), at least one guide sprocket (80) is arranged between the work roll (1) and the chain tensioner (50), at least one guide sprocket (80) is disposed between the chain tensioner (50) and the drive sprocket, the transmission chain (40) sequentially bypasses a guide chain wheel (80) among the working roller (1), the working roller (1) and the driving chain wheel, the guide chain wheel (80) among the driving chain wheel and the chain tensioner (50), the guide chain wheel (80) among the chain tensioner (50) and the working roller (1), and the transmission chain (40) is connected end to form a ring.

8. The film threading device of claim 1, wherein each working roller (1) is linked with a working motor, the working motors drive the working rollers (1) to rotate in a one-to-one correspondence manner, and the working motors are fixedly connected with the frame.

9. A thin film threading device according to claim 2, wherein: the tensioning frame (51) is provided with a travel switch (100), and the travel switch (100) is used for sensing the position of the balancing weight (55).