CN109850642B - Staggered edge winding device for film blowing machine - Google Patents
Staggered edge winding device for film blowing machine Download PDFInfo
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- CN109850642B CN109850642B CN201910284794.1A CN201910284794A CN109850642B CN 109850642 B CN109850642 B CN 109850642B CN 201910284794 A CN201910284794 A CN 201910284794A CN 109850642 B CN109850642 B CN 109850642B
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- film
- deviation correcting
- blowing machine
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- rod
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- Winding Of Webs (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
The invention discloses a staggered edge winding device for a film blowing machine, which comprises a sensor unit and a guiding movement unit. The sensor unit comprises an air cylinder, a bracket and a U-shaped deviation correcting sensor; the guiding movement unit comprises a movement guiding roller, an electric push rod, a rotating shaft and a guide rail. The invention belongs to a special device in a winding system of a tubular film blowing machine, which is installed by depending on the existing winding system of the blowing machine, replaces the original winding deviation correcting device, and embeds a proper control program in a control system of the blowing machine, so that the blowing machine can realize the staggered winding, thereby solving the problem of edge swinging which easily occurs in the traditional winding mode of the blowing machine.
Description
Technical Field
The invention relates to the field of flexible packaging machinery, in particular to a staggered edge winding device for a film blowing machine.
Background
The blown film is a tubular film product formed by melt-extruding a plastic raw material into a thin tube by an extruder, then blowing the thin tube with compressed air before crystallization, and cooling and shaping the thin tube. Films produced using this process are commonly referred to as cartridge films. And the winding devices of the film blowing machine are provided with winding deviation correcting devices so as to ensure that films on the sections at the two ends of the film roll are orderly arranged in the winding process of the cylindrical film. In the actual production of a cylindrical film manufactured by film blowing, when the sections at the two ends of the cylindrical film are orderly arranged, the phenomenon of tilting of the edge of the film roll is easy to occur along with the increase of the diameter of the film roll, and the larger the diameter of the film roll is, the more serious the tilting phenomenon is. The reason is that, because the cylindrical film is wound in a double-layer manner, the residual trace air at the edge of the cylindrical film and bending stress at the crease position and other factors can cause the edge of the cylindrical film to be slightly thicker than other parts, the Ji Shoujuan pair can enable the thicker edge part to be continuously overlapped at the same position of the film roll, so that the edge part of the film which is overlapped subsequently is stretched due to the front bulge, the stretching degree is larger and larger along with the increase of the winding diameter, if the stretching can not be reduced, the edge part of the film grows longer than the middle part, and a film defect which is generally known in the film blowing industry is formed: oscillating (or called lotus leaf edge). Production experience shows that the more regular the end face of the cylindrical film is when being rolled, the more serious the edge is warped, the more the edge is swayed, and conversely, sometimes the deviation corrector is out of order, the end face of the rolled film is not regular, and the phenomenon of edge swaying is reduced. Of course, the film roll end surface is not neat, which causes trouble to the unreeling of the users in the subsequent process, if the unreeling deviation correcting range of the subsequent process is exceeded, the film roll is regarded as an unqualified product. According to the production practice, to solve the phenomenon that two ends of a cylindrical film are easy to tilt, a special winding device for a film blowing machine needs to be developed, so that the 'irregular' end face of the film roll is ensured, the tilting of the edge of the film roll is eliminated, the 'irregular' is controllable, the follow-up unreeling deviation correcting range requirement is met, and the 'misplacement winding' concept is developed.
Disclosure of Invention
The invention aims to overcome the defect in the production process of the blown tubular film, eliminate the phenomenon of edge swinging which is easy to occur in the winding process of the tubular film blowing machine, and provide an offset winding device for the blowing machine.
The invention is realized by the following technical scheme:
the staggered edge winding device for the film blowing machine comprises a film, a sensor unit and a guiding movement unit, wherein the guiding movement unit is positioned at the upstream of the sensor unit, and the film moves towards the sensor unit through the guiding movement unit; the sensor unit comprises a cylinder, a bracket and a U-shaped deviation correcting sensor, one end of the cylinder is fixed on the bracket, and the other end of the cylinder is fixedly connected with the U-shaped deviation correcting sensor; the guiding movement unit comprises a movement guiding roller, an electric push rod, a rotating shaft and a guide rail; the motion guide roller is placed on the guide rail, the middle part of the motion guide roller is fixed on the rotating shaft, and one side of the guide rail is connected with the electric push rod; when the electric push rod reciprocates, the motion guide roller can be driven to reciprocate on the guide rail around the rotating shaft.
Further, the cylinder is a double-acting single-rod cylinder and comprises a rodless cavity, a rod cavity, an air pipe and a piston rod; one end of the rodless cavity is fixed on the bracket, the other end of the rodless cavity is connected with the rod cavity, the piston rod is arranged in the rod cavity, the end part of the piston rod is fixedly connected with the U-shaped deviation correcting sensor, and the U-shaped deviation correcting sensor is controlled to move along with the piston rod; and the rodless cavity and the rod cavity are respectively provided with an air pipe, and the movement of the piston rod in the cylinder is controlled by air inlet and air exhaust of the air pipes.
Further, the stroke of the piston rod is smaller than or equal to the upper limit of the unreeling deviation correcting distance.
Further, two moving guide rollers are arranged and are arranged on the upper side of the guide rail in parallel, and the film is wound on the surface of the moving guide rollers to realize the advancing to the sensor unit.
Further, the edge of the film is positioned at the U-shaped end of the U-shaped deviation correcting sensor, and the moving direction of the U-shaped deviation correcting sensor is perpendicular to the advancing direction of the film.
Further, the model of the U-shaped deviation correcting sensor is HP-100T.
The invention has the beneficial effects that:
the invention belongs to a special device in a winding system of a tubular film blowing machine, which is installed by depending on the existing winding system of the blowing machine, replaces the original winding deviation correcting device, and embeds a proper control program in a control system of the blowing machine, so that the blowing machine can realize the staggered winding, thereby solving the problem of edge swinging which easily occurs in the traditional winding mode of the blowing machine.
Drawings
FIG. 1 is a schematic view of the misalignment web apparatus according to the present invention.
Fig. 2 is a schematic view of the structure of the guide movement unit according to the present invention.
Fig. 3 is a schematic view of the structure of the sensor unit according to the present invention.
Fig. 4 is a schematic view of edge cocking after rolling of the drum film.
In the figure, the serial number is 1-cylinder, 2-U type deviation correcting sensor, 3-support, 4-trachea, 5-motion guide roll, 6-electric putter, 7-pivot, 8-guide rail, 9-film, 11-rodless chamber, 12-have pole chamber, 13-piston rod.
Detailed Description
The invention will be further described with reference to the drawings and examples.
Referring to fig. 1-3, the staggered edge winding device for the film blowing machine comprises a film 9, a sensor unit and a guiding movement unit, wherein the guiding movement unit is positioned at the upstream of the sensor unit, and the film 9 moves towards the sensor unit from the guiding movement unit; the sensor unit comprises an air cylinder 1, a bracket 3 and a U-shaped deviation correcting sensor 2, wherein one end of the air cylinder 1 is fixed on the bracket 3, and the other end of the air cylinder 1 is fixedly connected with the U-shaped deviation correcting sensor 2; the guiding movement unit comprises a movement guiding roller 5, an electric push rod 6, a rotating shaft 7 and a guide rail 8; the motion guide roller 5 is placed on a guide rail 8, the middle part of the motion guide roller is fixed on a rotating shaft 7, and one side of the guide rail 8 is connected with an electric push rod 6; when the electric push rod 6 reciprocates, the motion guide roller 5 can be driven to reciprocate on the guide rail 8 around the rotating shaft 7.
In this embodiment, the cylinder 1 is a double-acting single-rod cylinder, and includes a rodless cavity 11, a rod cavity 12, an air pipe 4 and a piston rod 13; one end of the rodless cavity 11 is fixed on the bracket 3, the other end of the rodless cavity is connected with the rod cavity 12, the piston rod 13 is arranged in the rod cavity 12, the end part of the piston rod 13 is fixedly connected with the U-shaped deviation correcting sensor 2, and the U-shaped deviation correcting sensor 2 is controlled to move along with the piston rod 13; the rodless cavity 11 and the rod cavity 12 are respectively provided with an air pipe 4, and the movement of the piston rod 13 in the cylinder 1 is controlled by air inlet and air exhaust of the air pipes 4. When the rodless cavity 11 of the cylinder is in air, the rod-containing cavity 12 is in air exhaust, the piston rod 13 is extended, when the rod-containing cavity 12 of the cylinder is in air exhaust, the rodless cavity 11 is in air exhaust, the piston rod 13 is retracted, and further the linear reciprocating movement of the piston rod 13 is realized. The U-shaped deviation correcting sensor 2 is fixed on the piston rod of the air cylinder 1, so that the U-shaped deviation correcting sensor can linearly reciprocate along with the piston rod 13.
In this embodiment, the stroke of the piston rod 13 is less than or equal to the upper limit of the unreeling deviation correcting distance.
In this embodiment, two moving guide rollers 5 are provided and are parallel to the upper side of the guide rail 8, and the film 9 is wound on the surface of the moving guide rollers 5, so as to implement the travel to the sensor unit.
In this embodiment, the edge of the film 9 is located at the U-shaped end of the U-shaped deviation correcting sensor 2, and when the U-shaped deviation correcting sensor 2 is installed, the moving direction of the U-shaped deviation correcting sensor 2 is guaranteed to be perpendicular to the advancing direction of the film 9.
In this embodiment, the model of the U-shaped deviation correcting sensor 2 is HP-100T.
The application process of the invention is as follows:
referring to fig. 4, a schematic view of edge tilting after rolling a cylindrical film, in the actual production of film blowing to manufacture the cylindrical film, when the sections at two ends of the cylindrical film are aligned, the phenomenon of tilting the edge of the rolled film is easy to occur along with the increase of the diameter of the rolled film, and the larger the diameter of the rolled film is, the more serious the tilting phenomenon is.
In order to solve the edge curling problem in fig. 4, before the film blowing machine is started, the dislocation winding control program is required to be embedded into and adapted to the whole control program of the film blowing machine; the opening of the fine-tuning valve of the cylinder is regulated, so that the advancing speed of the piston of the cylinder is ensured to be medium; after the control screen of the film blowing machine is started, the control screen enters a setting page of the film blowing machine system, related dislocation winding parameters are input, namely dislocation turns, and then the film blowing machine is started normally according to the original operation program of the film blowing machine.
After the film blowing machine is started normally, the winding device starts to operate, when the winding device counter of the film roll reaches the set dislocation number of turns, the film blowing machine PLC sends an instruction to supply air to the air cylinder 1, the piston rod 13 starts to move, the U-shaped deviation correcting sensor 2 is driven to move together, and the film blowing machine stops after moving to one end point of the air cylinder 1. The new position signal of the U-shaped deviation correcting sensor 2 can be timely transmitted to a PLC system of the film blowing machine, then the PLC system sends an instruction to the electric push rod 6, the electric push rod 6 pushes the guide moving roller 5 to rotate for a certain angle, the edge position of the film 9 is changed immediately, the film moves to the new position point of the U-shaped deviation correcting sensor 2, and after a plurality of times of movement correction, the electric push rod 6 and the movement guide roller 2 accurately maintain the edge of the film on the new position point of the U-shaped deviation correcting sensor 2. When the counter of the winding device reaches the dislocation circle number again, the cylinder 1 acts to send the U-shaped deviation correcting sensor 2 to a new position again, the PLC instructs the electric push rod 6 and the guide moving roller 5 to adjust the edge of the film to the new position point of the U-shaped deviation correcting sensor 2 again, the film roll end surfaces formed by the edges of the film form staggered arrangement in a reciprocating way, dislocation winding of the film is realized, and the dislocation distance is one piston stroke of the cylinder 1.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present invention.
Claims (2)
1. The utility model provides a blowing machine is with wrong limit coiling mechanism, includes film (9), its characterized in that: the device also comprises a sensor unit and a guiding movement unit, wherein the guiding movement unit is positioned at the upstream of the sensor unit, and the film (9) moves towards the sensor unit by the guiding movement unit; the sensor unit comprises an air cylinder (1), a bracket (3) and a U-shaped deviation correcting sensor (2), one end of the air cylinder (1) is fixed on the bracket (3), and the other end of the air cylinder (1) is fixedly connected with the U-shaped deviation correcting sensor (2); the guiding movement unit comprises a movement guiding roller (5), an electric push rod (6), a rotating shaft (7) and a guide rail (8); the motion guide roller (5) is placed on the guide rail (8), the middle part of the motion guide roller is fixed on the rotating shaft (7), and one side of the guide rail (8) is connected with the electric push rod (6); when the electric push rod (6) moves reciprocally, the motion guide roller (5) can be driven to rotate reciprocally around the rotating shaft (7) on the guide rail (8);
the cylinder (1) is a double-acting single-rod cylinder and comprises a rodless cavity (11), a rod cavity (12), an air pipe (4) and a piston rod (13); one end of the rodless cavity (11) is fixed on the bracket (3), the other end of the rodless cavity is connected with the rod cavity (12), the piston rod (13) is arranged in the rod cavity (12), the end part of the piston rod (13) is fixedly connected with the U-shaped deviation correcting sensor (2), and the U-shaped deviation correcting sensor (2) is controlled to move along with the piston rod (13); the rodless cavity (11) and the rod cavity (12) are respectively provided with an air pipe (4), and the movement of the piston rod (13) in the air cylinder (1) is controlled by air inlet and air exhaust of the air pipes (4);
the stroke of the piston rod (13) is smaller than or equal to the upper limit of the unreeling deviation correcting distance;
the two moving guide rollers (5) are arranged in parallel on the upper side of the guide rail (8), and the film (9) is wound on the surface of the moving guide rollers (5) to realize the advancing to the sensor unit;
the edge of the film (9) is positioned at the U-shaped end of the U-shaped deviation correcting sensor (2), and the moving direction of the U-shaped deviation correcting sensor (2) is perpendicular to the advancing direction of the film (9).
2. The misalignment winding apparatus for a film blowing machine according to claim 1, wherein: the model of the U-shaped deviation correcting sensor (2) is HP-100T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910284794.1A CN109850642B (en) | 2019-04-10 | 2019-04-10 | Staggered edge winding device for film blowing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910284794.1A CN109850642B (en) | 2019-04-10 | 2019-04-10 | Staggered edge winding device for film blowing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109850642A CN109850642A (en) | 2019-06-07 |
| CN109850642B true CN109850642B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910284794.1A Active CN109850642B (en) | 2019-04-10 | 2019-04-10 | Staggered edge winding device for film blowing machine |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2923617Y (en) * | 2006-04-30 | 2007-07-18 | 马镇鑫 | Plastic film position staggered-folding winding device |
| CN202186781U (en) * | 2011-08-18 | 2012-04-11 | 桂林电器科学研究院 | Unrolling device for film rolls |
| WO2015070362A1 (en) * | 2013-11-12 | 2015-05-21 | 广东金明精机股份有限公司 | Winding-up and roll-replacing apparatus for wide thin-film |
-
2019
- 2019-04-10 CN CN201910284794.1A patent/CN109850642B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2923617Y (en) * | 2006-04-30 | 2007-07-18 | 马镇鑫 | Plastic film position staggered-folding winding device |
| CN202186781U (en) * | 2011-08-18 | 2012-04-11 | 桂林电器科学研究院 | Unrolling device for film rolls |
| WO2015070362A1 (en) * | 2013-11-12 | 2015-05-21 | 广东金明精机股份有限公司 | Winding-up and roll-replacing apparatus for wide thin-film |
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| Publication number | Publication date |
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| CN109850642A (en) | 2019-06-07 |
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