CN114043713A - Special winding device for blowing films of shopping bags and winding method thereof - Google Patents

Abstract

The invention discloses a special winding device for blowing films for shopping bags, which comprises a film bag forming mechanism, a film bag rolling mechanism and a film bag winding mechanism, wherein the film bag forming mechanism comprises a restraint mechanism, an air cooling mechanism and a multi-stage restraint mechanism which are sequentially arranged from bottom to top; the inner diameter-adjustable structure is arranged right above the discharge port of the film blowing machine, so that the diameter of the outer circumferential surface of the inner part of the film bag produced by the film blowing machine is limited in the blowing process, and the inner diameter of the limiting mechanism can be adjusted to limit the film bags with various sizes.

Description

Special winding device for blowing films of shopping bags and winding method thereof

Technical Field

The invention relates to the technical field of shopping bag production, in particular to a special winding device for film blowing of a shopping bag and a winding method thereof.

Background

In order to keep fresh and store food in the life, a shopping bag is produced, the shopping bag is a film container for containing and protecting food, the shopping bag is favorable for the convenience of garbage classification and treatment, an important guarantee is provided for environmental protection, and the garbage bag with continuous output needs to be rolled in the processing process of the shopping bag.

In the conventional technology, the shopping bag is a film bag in a tube form continuously blown by a film blowing machine, the film bag in the tube form is constrained into a flat double-layer film bag by a roller feeding device, and then the film bag is rolled up and rolled by a roller, and in the actual processing process, the process of directly constraining the tubular film bag into the flat film bag by the roller feeding device still has the following problems:

(1) the film bag is exhausted from the interior of the tube-packed film bag through a film blowing machine, so that the film bag is expanded into a tubular structure, and quantitative air can be exhausted by the film blowing machine according to the size of the film bag required to be blown, so that a mechanism for limiting the periphery of the tube-packed film bag is not usually arranged between the film blowing machine and a roller conveying device, and the problems of uneven size distribution and low qualified rate of the film bag are easily caused;

(2) the tubular film bag and the roller conveying device lack a mechanism for guiding the film bag to deform, the roller conveying device directly guides the tubular film bag to deform, wrinkles exist when the tubular film bag deforms into a flat structure, and accordingly the rolling effect is poor.

Disclosure of Invention

The invention aims to provide a special winding device for blowing a film for a shopping bag and a winding method thereof, and aims to solve the problems that a tubular film bag in the prior art is lack of a mechanism for limiting the size of the periphery, and wrinkles exist when the tubular film bag is deformed into a flat structure.

In order to solve the technical problems, the invention specifically provides the following technical scheme:

a special winding device for shopping bag film blowing comprises a film bag forming mechanism, a film bag roller feeding mechanism and a film bag winding mechanism, wherein the film bag roller feeding mechanism is arranged right above a discharge port of a film blowing machine and used for feeding a tubular film bag roller continuously generated by the film blowing machine to the film bag winding mechanism;

the film bag forming mechanism comprises a restraint mechanism, an air cooling mechanism and a multi-stage restraint mechanism which are sequentially arranged from bottom to top;

the restraint mechanism is positioned right above a discharge port of the film blowing machine and used for limiting the size of the outer circumference of the blown film bag after the film blowing machine generates the film bag;

the air cooling mechanism is arranged right above the constraint mechanism and used for carrying out air cooling on the periphery of the blown film bag so as to cool the film bag to a stable physical state which is not easy to damage;

the multistage restraint mechanism is arranged right above the air cooling mechanism and is used for carrying out multistage restraint and wrinkle removal on the stable film bag, so that the tubular film bag is flattened after being subjected to multistage restraint by the film bag rolling mechanism and is conveyed to the film bag by the film bag roller conveying mechanism;

restraint mechanism is including setting up the support frame of membrane bag forming mechanism periphery, be provided with on the support frame and be in the outer limiting mechanism of membrane bag directly over the discharge gate of membrane bag forming mechanism, the inboard aperture of the outer limiting mechanism of membrane bag can be with axle center adjustment diameter, the outer limiting mechanism's of membrane bag inboard aperture adjustment can restrict the outer periphery of not unidimensional behind the membrane bag blowing.

As a preferable aspect of the present invention, the membrane bag external restriction mechanism includes a connection pad fixedly connected to the top end of the support frame, the connection pad is provided with a fixing ring and an adjusting ring which are coaxial with the connection pad, the adjusting ring can rotate transversely on the connection pad, the inner side of the adjusting ring is provided with a plurality of equidistantly distributed in-hole movable rods, the end portions of the plurality of in-hole movable rods extend to the inner side of the fixing ring to form a quasi-circular structure, and the adjusting ring can rotate on the connection pad to adjust the size of the inner circumferential surface of the quasi-circular structure formed by the plurality of in-hole movable rods in the fixing ring.

As a preferable scheme of the present invention, a plurality of through holes for the movable rods to movably pass through are formed on the outer side of the fixed ring, one end of each movable rod in each hole is transversely and rotatably connected with the inside of the adjusting ring, the other end of each movable rod in each hole passes through the through hole in the fixed ring and extends to the inside of the fixed ring, the positions of the movable rods in each hole, which are located inside the fixed ring, are sequentially overlapped end to form a circular-like channel structure, the clockwise rotation of the adjusting ring on the connecting disc can increase the inner circumferential surface of the circular-like structure formed by the movable rods in each hole inside the fixed ring, and the counterclockwise rotation of the adjusting ring on the connecting disc can decrease the inner circumferential surface of the circular-like structure formed by the movable rods in each hole inside the fixed ring.

As a preferable scheme of the present invention, the end of the movable rod in the hole at the fixed ring is rotatably connected with a connecting sheet, the inner side of the connecting sheet is elastically connected with the movable rod in the hole by a tension spring, the connecting sheet at the end of the movable rod in the hole can be elastically carried on the adjacent movable rod in the hole by the tension spring, and the connecting sheet is used for filling a gap at the lap joint of the adjacent two movable rods in the hole.

As a preferable scheme of the present invention, a film bag through hole through which a film bag passes is formed in a center position of the connecting disc, a bearing ring rotatably connected to the adjusting ring is disposed on the connecting disc, and a diameter of the film bag through hole is smaller than an inner diameter of the fixing ring.

As a preferable scheme of the present invention, the multistage restraint mechanism includes a mounting bracket fixed to the air cooling mechanism, the inner side of the mounting bracket is sequentially provided with a plurality of arm stretching mechanisms from bottom to top, the plurality of arm stretching mechanisms are all provided with arc restraint tubes, the arm stretching mechanisms can be relatively abutted on two sides of the film bag through the arc restraint tubes, the radians of the plurality of arc restraint tubes from bottom to top are sequentially increased, and the plurality of arc restraint tubes can sequentially and flatly unfold the central portion of the tubular film bag outward, so that the tubular film bag is deformed into a wrinkle-removed flat film bag.

As a preferable scheme of the invention, the boom extending mechanism comprises two connecting frames symmetrically fixed on the mounting frame, wherein the two connecting frames are transversely and slidably connected with inner frame sliding blocks, the two inner frame sliding blocks can transversely slide relative to each other through the two connecting frames, the end parts of the inner frame sliding blocks are connected with the arc-shaped constraint pipe through two connecting assemblies, the connecting frames are in threaded connection with adjusting screws rotatably connected with the inner frame sliding blocks, and the adjusting screws are used for adjusting the transverse positions of the inner frame sliding blocks on the connecting frames.

As a preferable aspect of the present invention, the connecting member is rotatable on the in-frame slider, and an end portion of the connecting member is of a screw structure, and a middle portion of the connecting member is of a regular polygonal structure.

As a preferable scheme of the invention, the whole arc-shaped restraint pipe is of an arc-shaped pipe structure with a symmetrical central axis, the middle part of the arc-shaped restraint pipe is of a convex structure, the inner side of the arc-shaped restraint pipe is connected with the connecting assembly through a threaded hole, the convex structure of the arc-shaped restraint pipe can enable a top-closing area of a pipe film-filled bag to be wrinkle-removed and unfolded through the central part of a transverse top-closing film bag, and the middle convex structures of the arc-shaped restraint pipes are positioned on the same longitudinal plane.

In order to solve the above technical problems, the present invention further comprises the following technical solutions:

a method of winding, comprising:

step 100, sequentially passing the film bags continuously produced by the film blowing machine through a restraint mechanism, an air cooling mechanism and a multi-stage restraint mechanism, carrying the film bags on a film bag roll feeding mechanism, and conveying the film bags to a film bag rolling mechanism by a film bag roll feeding mechanism;

step 200, adjusting the inside diameter of the constraint mechanism to limit the outer circumferential surface of the blown film bag to be not more than the inside diameter of the constraint mechanism;

step 300, cooling the film bag which continuously moves towards the film bag rolling and conveying mechanism by an air cooling mechanism so as to ensure that the physical form of the film bag is stable and the film bag is not easy to damage when being stressed;

and 400, restraining the final generation of the tube package into a flat structure by a multi-stage restraining structure, and removing wrinkles on the surfaces of the film bags for multiple times so as to prevent the surfaces of the film bags fed by the film bag feeding mechanism.

Compared with the prior art, the invention has the following beneficial effects:

(1) the inner diameter adjustable structure is arranged right above the discharge hole of the film blowing machine, so that the diameter of the outer circumferential surface of the inner part of the film bag produced by the film blowing machine is limited in the blowing process, and the inner diameter of the limiting mechanism can be adjusted to limit the film bags with various sizes, so that the film blowing machine has wider applicability;

(2) according to the invention, the tubular film bag generated by the film blowing machine is restrained for multiple times, so that the tubular film bag is restrained into the flat film bag by the tubular film bag before being transported to the roller conveying device, and the tubular film bag is guided and unfolded symmetrically from the center to two sides in the multiple restraining process, so that wrinkles generated in the roller conveying process of the film bag are effectively reduced, and the film bag rolling effect is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

Fig. 1 is a schematic view of the whole apparatus according to the embodiment of the present invention.

Fig. 2 is a top view of a film bag outer restraining mechanism according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a multi-stage restraint mechanism provided in accordance with an embodiment of the present invention.

Fig. 4 is a top view of a boom mechanism according to an embodiment of the present invention.

The reference numerals in the drawings denote the following, respectively:

1-a film bag forming mechanism; 2-a film bag roll-feeding mechanism; 3-a film bag winding mechanism;

11-a constraining mechanism; 12-an air cooling mechanism; 13-a multi-stage restraint mechanism;

111-a support frame; 112-a film bag outer restriction mechanism;

1121-connecting disc; 1122-a retaining ring; 1123-adjusting ring; 1124-movable rod in the hole;

11211-membrane pocket through hole; 11212-a bearing ring; 11241-connecting piece; 11242-tension spring;

131-a mounting frame; 132-an arm extension mechanism; 133-an arc restraint tube;

1321-a connecting frame; 1322-in-frame slide block; 1323-a connection assembly; 1324-adjusting screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the present invention provides a winding method, including:

step 100, sequentially passing the film bags continuously produced by the film blowing machine through a restraint mechanism, an air cooling mechanism and a multi-stage restraint mechanism, carrying the film bags on a film bag roll feeding mechanism, and conveying the film bags to a film bag rolling mechanism by a film bag roll feeding mechanism;

step 200, adjusting the inside diameter of the constraint mechanism to limit the outer circumferential surface of the blown film bag to be not more than the inside diameter of the constraint mechanism;

step 300, cooling the film bag which continuously moves towards the film bag rolling and conveying mechanism by an air cooling mechanism so as to ensure that the physical form of the film bag is stable and the film bag is not easy to damage when being stressed;

and 400, restraining the final generation of the tube package into a flat structure by a multi-stage restraining structure, and removing wrinkles on the surfaces of the film bags for multiple times so as to prevent the surfaces of the film bags fed by the film bag feeding mechanism.

As shown in fig. 1 to 4, in order to implement the above technical solution, the invention further provides a special winding device for blowing a shopping bag with a film, comprising a film bag forming mechanism 1, a film bag rolling mechanism 2 and a film bag winding mechanism 3, wherein the film bag rolling mechanism 2 is arranged right above a discharge port of the film blowing machine and is used for feeding a tubular film bag roller continuously generated by the film blowing machine to the film bag winding mechanism 3, the film bag forming mechanism 1 is arranged between the film blowing machine and the film bag rolling mechanism 2, and the film bag forming mechanism 1 is used for stabilizing the physical state of the film bag continuously generated by the film blowing machine and constraining the shape of the film bag;

the film bag forming mechanism 1 comprises a restraint mechanism 11, an air cooling mechanism 12 and a multi-stage restraint mechanism 13 which are arranged from bottom to top in sequence;

the restraint mechanism 11 is positioned right above a discharge port of the film blowing machine and used for limiting the size of the outer circumference of the blown film bag after the film blowing machine generates the film bag;

the air cooling mechanism 12 is arranged right above the constraint mechanism 11 and used for carrying out air cooling on the periphery of the blown film bag so as to cool the film bag to a stable physical state which is not easy to damage;

the multistage restraint mechanism 13 is arranged right above the air cooling mechanism 12 and is used for carrying out multistage restraint and wrinkle removal on the stable film bag, so that the tubular film bag is flat after being subjected to multistage restraint by the film bag rolling mechanism 3 and is conveyed to the film bag by the film bag roller conveying mechanism 2 in a vertical roller manner;

the restraint mechanism 11 comprises a support frame 111 arranged on the periphery of the film bag forming mechanism 1, the support frame 111 is provided with a film bag outer limiting mechanism 112 positioned right above a discharge port of the film bag forming mechanism 1, the inner side aperture of the film bag outer limiting mechanism 112 can be adjusted in diameter by the same axle center, and the inner side aperture adjustment of the film bag outer limiting mechanism 112 can limit the outer circumferential surfaces of different sizes of blown film bags.

The inner diameter adjustable structure is arranged right above the discharge port of the film blowing machine, so that the diameter of the outer circumferential surface of the film bag produced by the film blowing machine is limited in the blowing process, the outer circumferential surface of the film bag produced continuously is prevented from being uneven in size, the production yield of the film bag is improved, and the inner diameter of the limiting mechanism can be adjusted to limit the film bags with various sizes, so that the film bag blowing machine has wide applicability.

Through carrying out restraint many times to the tubulose membrane bag that inflation film manufacturing machine produced for tubulose membrane bag is retrained into the film bag of platykurtic by tubulose membrane bag before the transportation send the device to the roller to the guide of carrying out by center to bilateral symmetry is expanded to tubulose membrane bag in the in-process of retraining many times, has effectively reduced the fold that the membrane bag produced in the roller send the in-process.

The membrane bag outer limiting mechanism 112 includes a connecting disc 1121 fixedly connected to the top end of the supporting frame 111, a fixing ring 1122 and an adjusting ring 1123 coaxial with the connecting disc 1121 are arranged on the connecting disc 1121, the adjusting ring 1123 can transversely rotate on the connecting disc 1121, a plurality of in-hole movable rods 1124 distributed at equal intervals are arranged on the inner side of the adjusting ring 1123, the end portions of the plurality of in-hole movable rods 1124 extend to the inner side of the fixing ring 1122 to form a quasi-circular structure, and the size of the inner circumferential surface of the quasi-circular structure formed by the plurality of in-hole movable rods 1124 in the fixing ring 1122 can be adjusted by rotating the adjusting ring 1123 on the connecting disc 1121.

The through-hole that a plurality of confession downthehole movable rods 1124 activity were passed is seted up to fixed ring 1122's the outside, the one end of downthehole movable rod 1124 is connected with the inside horizontal rotation of adjustable ring 1123, the other end of downthehole movable rod 1124 passes the through-hole on fixed ring 1122 and extends to fixed ring 1122's inside, the position that a plurality of downthehole movable rods 1124 are in fixed ring 1122 inside is head and the tail overlap joint in proper order and forms circular-like channel structure, the inner circumferential surface that the circular-like structure that the inside a plurality of downthehole movable rods 1124 of fixed ring 1122 constitute can be made increase to clockwise rotation on connection pad 1121 of adjustable ring 1123 to the inner circumferential surface that the circular-like structure that the inside a plurality of downthehole movable rods 1124 of fixed ring 1122 constitute can be made to reduce on connection pad 1121.

The end part, located at the fixing ring 1122, of the in-hole movable rod 1124 is rotatably connected with a connecting sheet 11241, the inner side of the connecting sheet 11241 is elastically connected with the in-hole movable rod 1124 through a tension spring 11242, the connecting sheet 11241 at the end part of the in-hole movable rod 1124 can be elastically loaded on the adjacent in-hole movable rod 1124 through the tension spring 11242, and the connecting sheet 11241 is used for filling a gap at the overlapping position of the adjacent two in-hole movable rods 1124.

A membrane bag through hole 11211 for a membrane bag to pass through is formed in the circle center of the connecting disc 1121, a bearing ring 11212 rotatably connected with the adjusting ring 1123 is arranged on the connecting disc 1121, the diameter of the membrane bag through hole 11211 is smaller than the inner diameter of the fixing ring 1122, so that the membrane bag can pass through the membrane bag through hole 11211 and cannot be in contact with the inner wall of the fixing ring 1122 all the time along with the change of the size of the outer circumferential surface of the membrane bag, and the adjusting ring 1123 can transversely rotate on the fixing ring 1122 through the bearing ring 11212.

When the film bag produced by the film blowing machine passes through the constraint mechanism 11, the end of the film bag needs to pass through the similar circular structure formed by the support frame 111, the film bag through hole 11211 of the connection disc 1121, the fixing ring 1122 and the plurality of in-hole movable rods 1124 in sequence.

According to the size of the outer circumferential surface required after the film bag produced by the film blowing machine is blown, the outer limiting mechanism 112 of the film bag is adjusted, the adjusting ring 1123 is controlled to rotate in the corresponding direction on the connecting disc 1121, so that the plurality of in-hole movable rods 1124 connected in a transverse rotating mode on the inner side of the adjusting ring 1123 start to be far away from or approach to the inner wall of the adjusting ring 1123, the quasi-circular structure formed by the plurality of in-hole movable rods 1124 starts to increase or decrease under the condition that the center of a circle is not changed, and the blown film bag is limited in the quasi-circular structure formed by the plurality of in-hole movable rods 1124 when being deformed to the fit-in-hole movable rods 1124.

In the process of adjusting the quasi-circular structure formed by the plurality of in-hole movable rods 1124 together, the tension springs 11242 at the end portions of the in-hole movable rods 1124 can elastically pull back the connecting pieces 11241 all the time, so that the connecting pieces 11241 of the in-hole movable rods 1124 can be loaded on the adjacent top end in-hole movable rods 1124 all the time, gaps formed by overlapping of the plurality of in-hole movable rods 1124 are filled by the plurality of connecting pieces 11241, and the quasi-circular structure formed by the plurality of in-hole movable rods 1124 together can be closer to a circular shape.

Wherein, multistage restraint mechanism 13 is including fixing mounting bracket 131 on air-cooled mechanism 12, the inboard of mounting bracket 131 has set gradually a plurality of outrigger mechanisms 132 from bottom to top, all be provided with the about pipe 133 of arc on a plurality of outrigger mechanisms 132, outrigger mechanism 132 can close in the both sides top of membrane bag relatively through the about pipe 133 of arc, the about pipe 133 of a plurality of arcs increases in proper order from bottom to top radian, and the about pipe 133 of a plurality of arcs can be in proper order outwards smooth the expansion to the central point of tubulose membrane bag, so that tubulose membrane bag deformation is the platykurtic membrane bag after removing the wrinkle.

The cantilever mechanism 132 includes two connection frames 1321 symmetrically fixed on the mounting bracket 131, all lateral sliding connection has the interior slider 1322 of frame on two connection frames 1321, the slider 1322 can be through the relative lateral sliding of two connection frames 1321 in two frames, the tip of the interior slider 1322 of frame is connected with the about pipe 133 of arc through being provided with two coupling assembling 1323, there is adjusting screw 1324 who rotates the connection with the interior slider 1322 of frame through threaded connection on the connection frame 1321, adjusting screw 1324 is used for adjusting the lateral position of the interior slider 1322 of frame on connection frame 1321.

The connecting assembly 1323 can rotate on the in-frame slider 1322, the end portion of the connecting assembly 1323 is of a screw structure, and the middle portion of the connecting assembly 1323 is of a regular polygon structure.

The whole arc tube structure that is central axis symmetry of the about pipe 133 of arc, the middle part of the about pipe 133 of arc is protruding structure, and the inboard of the about pipe 133 of arc is connected with coupling assembling 1323 through set up threaded hole, and the protruding structure of the about pipe 133 of arc can make the top of tube dress membrane bag close regional wrinkle removal and expand through the central part of horizontal top close membrane bag, and the protruding structure in the middle of the about pipe 133 of a plurality of arcs is in same longitudinal plane.

After the outer circumference of the film bag is limited by the film bag outer limiting mechanism 112, the limited film bag is continuously drawn by the film bag rolling mechanism 2 and passes through the air cooling mechanism 12, the air cooling mechanism 12 performs air cooling on the outside of the limited film bag to keep the physical state of the film bag stable after the film bag is cooled, then the film bag rises to the multistage limiting mechanism 13, the multi-stage limiting mechanism 13 performs multi-stage limitation on the tubular film bag to form a flat film bag, the wrinkles of the film bag can be removed in the multi-stage limitation process, and the film bag rolling mechanism 2 is prevented from rolling the wrinkled film bag to the film bag rolling mechanism 3.

When the multi-stage restraint mechanism 13 restrains the film bag, the film bag is restrained once by the arm stretching mechanism 132 at the lowest position on the mounting frame 131 and the arc restraint tube 133 with the largest radian, the central position of the arc restraint tube 133 is abutted to the position, close to the center, on the tubular film bag, the inner side of the tubular film bag can press the film bag on the arc restraint tube 133 under the blowing effect, the protruding part of the center of the arc restraint tube 133 can exert a large restraint force on the film bag, so that the film bag can automatically unfold towards two sides along the center of the arc restraint tube 133 when passing through the arc restraint tube 133, wrinkles existing on the film bag can automatically unfold under the effect of gas inside the film bag, the arm stretching mechanism 132 can connect two arc restraint tubes 133 with the same radian to restrain two sides of the film bag relatively, so that the central parts of two sides of the film bag are unfolded when passing through the arm stretching mechanism 132 at the lowest position, completing the constraint once.

As the film bag once constrained moves to the boom extension mechanism 132 in the middle of the mounting frame 131, the two arc constraining tubes 133 connected to the boom extension mechanism 132 are reduced in bending curvature compared with the two arc constraining tubes 133 below, and the whole is more vertical, and the protruding transverse positions of the centers of the three arc constraining tubes 133 are all located on the same longitudinal plane, so that the two arc constraining tubes 133 in the middle receive the two arc constraining tubes 133 below, and the wrinkle removing and unfolding area of the film bag is further widened.

And the two arc restraint pipes 133 at the top can accept the two arc restraint pipes 133 in the middle, so that the area for removing wrinkles and unfolding the film bag is further widened, the film bag packaged in the tube is restrained into a flat structure with the wrinkles and unfolded after being restrained for three times by the multi-stage restraint mechanism 13, and the wrinkles are not easily generated on the film bag when the film bag roll-feeding mechanism 2 is accessed.

In addition, the adjusting screw 1324 can be rotated, the adjusting screw 1324 adjusts the transverse position on the connecting frame 1321 through threads, and then the connecting frame inner slide block 1322 adjusts the transverse position on the connecting frame 1321, and when the arc restraint pipe 133 is installed or disassembled, the screw position of the connecting assembly 1323 can be acted with the arc restraint pipe 133 to be connected or disassembled by screwing the regular polygon area on the frame inner slide block 1322.

The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims (10)

1. The utility model provides a dedicated coiling mechanism of shopping bag blown film which characterized in that includes: the film bag rolling and conveying mechanism comprises a film bag forming mechanism (1), a film bag rolling and conveying mechanism (2) and a film bag winding mechanism (3), wherein the film bag rolling and conveying mechanism (2) is arranged right above a discharge port of a film blowing machine and used for conveying a tubular film bag roller continuously generated by the film blowing machine to the film bag winding mechanism (3), the film bag forming mechanism (1) is located between the film blowing machine and the film bag rolling and conveying mechanism (2), and the film bag forming mechanism (1) is used for stabilizing the physical state of a film bag continuously generated by the film blowing machine and restraining the shape of the film bag;

the film bag forming mechanism (1) comprises a restraint mechanism (11), an air cooling mechanism (12) and a multi-stage restraint mechanism (13) which are sequentially arranged from bottom to top;

the restraint mechanism (11) is positioned right above a discharge port of the film blowing machine and used for limiting the size of the outer circumference of the blown film bag after the film blowing machine generates the film bag;

the air cooling mechanism (12) is arranged right above the restraint mechanism (11) and is used for carrying out air cooling on the periphery of the blown film bag so as to cool the film bag to a stable physical state which is not easy to damage;

the multistage restraint mechanism (13) is arranged right above the air cooling mechanism (12) and is used for carrying out multistage restraint and wrinkle removal on the stable film bag, so that the tubular film bag is flat after being restrained by the film bag rolling mechanism (3) in a multistage manner and is conveyed to the film bag by the film bag rolling mechanism (2) through a vertical roller;

restraint mechanism (11) are including setting up support frame (111) of membrane bag forming mechanism (1) periphery, be provided with on support frame (111) and be in the outer limiting mechanism of membrane bag (112) directly over the discharge gate of membrane bag forming mechanism (1), the inboard aperture of the outer limiting mechanism of membrane bag (112) can be with axle center adjustment diameter, the inboard aperture adjustment of the outer limiting mechanism of membrane bag (112) can restrict the outer periphery of different sizes behind the membrane bag blowing.

2. The special winding device for blowing the films of the shopping bags according to claim 1, is characterized in that: the outer limiting mechanism (112) of the membrane bag comprises a connecting disc (1121) fixedly connected with the supporting frame (111) at the top end of the supporting frame (111), a fixing ring (1122) and an adjusting ring (1123) which are coaxial with the connecting disc (1121) are arranged on the connecting disc (1121), the adjusting ring (1123) can transversely rotate on the connecting disc (1121), a plurality of hole inner movable rods (1124) are arranged on the inner side of the adjusting ring (1123) and are distributed at equal intervals, the end portions of the hole inner movable rods (1124) extend to the inner side of the fixing ring (1122) to form a quasi-circular structure, and the adjusting ring (1123) rotates on the connecting disc (1121) to adjust the size of the inner circumferential surface of the quasi-circular structure formed by the hole inner movable rods (1124) in the fixing ring (1122).

3. The special winding device for blowing the films of the shopping bags according to claim 2, is characterized in that: a plurality of through holes for the movable rod (1124) in the hole to movably pass through are arranged on the outer side of the fixing ring (1122), one end of the movable rod (1124) in the hole is transversely and rotatably connected with the interior of the adjusting ring (1123), the other end of the movable rod (1124) in the hole passes through the through hole on the fixing ring (1122) and extends into the fixing ring (1122), the parts of the movable rods (1124) in the hole, which are positioned in the fixing ring (1122), are sequentially overlapped end to form a channel structure similar to a circle, the adjusting ring (1123) rotates clockwise on the connecting disc (1121) to enlarge the inner circumferential surface of a quasi-circular structure consisting of a plurality of movable rods (1124) in the holes in the fixing ring (1122), and the adjusting ring (1123) rotates on the connecting disc (1121) anticlockwise, so that the inner circumferential surface of a quasi-circular structure consisting of a plurality of movable rods (1124) in the holes in the fixed ring (1122) can be reduced.

4. The special winding device for blowing the films of the shopping bags according to claim 3, is characterized in that: the utility model discloses a portable electronic device, including fixed ring (1122), downthehole movable rod (1124), connection piece (11241), and the inboard of connection piece (11241) through be provided with extension spring (11242) with downthehole movable rod (1124) elastic connection, downthehole movable rod (1124) tip connection piece (11241) pass through extension spring (11242) can elastic loading be adjacent on downthehole movable rod (1124), connection piece (11241) are used for filling two adjacent space of downthehole movable rod (1124) overlap joint department.

5. The special winding device for blowing the films of the shopping bags according to claim 4, is characterized in that: a membrane bag through hole (11211) for a membrane bag to pass through is formed in the circle center of the connecting disc (1121), a bearing ring (11212) rotatably connected with the adjusting ring (1123) is arranged on the connecting disc (1121), and the diameter of the membrane bag through hole (11211) is smaller than the inner diameter of the fixing ring (1122).

6. The special winding device for blowing the films of the shopping bags according to claim 1, is characterized in that: multistage restraint mechanism (13) are including fixing mounting bracket (131) on air cooling mechanism (12), the inboard of mounting bracket (131) has set gradually a plurality of armlet mechanisms (132), and is a plurality of the about pipe of arc (133) all is provided with on armlet mechanism (132), the armlet mechanism (132) can pass through about pipe of arc (133) closes in the both sides top of membrane bag relatively, and is a plurality of about pipe of arc (133) increases from last radian to the bottom in proper order, and is a plurality of about pipe of arc (133) can be in proper order to outside flattening expansion to the central point of tubulose membrane bag to make tubulose membrane bag deformation be the platykurtic membrane bag after removing the wrinkle.

7. The special winding device for blowing the films of the shopping bags according to claim 6, is characterized in that: the cantilever mechanism (132) is fixed including the symmetry two coupling frame (1321), two on mounting bracket (131) all lateral sliding connection has interior slider of frame (1322), two on coupling frame (1321) slider of frame (1322) can pass through two relative lateral sliding of coupling frame (1321), the tip of slider (1322) in the frame through be provided with two coupling assembling (1323) with the about pipe of arc (133) is connected, on coupling frame (1321) have through threaded connection with slider of frame (1322) rotates adjusting screw (1324) of connecting, adjusting screw (1324) are used for adjusting slider (1322) is in the frame lateral position on coupling frame (1321).

8. The special winding device for blowing the films of the shopping bags according to claim 7, is characterized in that: the connecting assembly (1323) can rotate on the frame inner sliding block (1322), the end part of the connecting assembly (1323) is of a screw rod structure, and the middle part of the connecting assembly (1323) is of a regular polygon structure.

9. The special winding device for blowing the films of the shopping bags according to claim 8, is characterized in that: the integral arc-shaped pipe structure with the symmetrical central axis is formed by the arc-shaped restraint pipes (133), the middle parts of the arc-shaped restraint pipes (133) are of protruding structures, the inner sides of the arc-shaped restraint pipes (133) are connected with the connecting assembly (1323) through threaded holes, the protruding structures of the arc-shaped restraint pipes (133) can enable the top closing areas of the pipe film packaging bags to be wrinkle-removed and unfolded through the central parts of the transverse top closing film bags, and the middle protruding structures of the arc-shaped restraint pipes (133) are located on the same longitudinal plane.

10. A rolling method for the special rolling device for film blowing of the shopping bags as defined in any one of claims 1 to 9, which comprises:

step 100, sequentially passing the film bags continuously produced by the film blowing machine through a restraint mechanism, an air cooling mechanism and a multi-stage restraint mechanism, carrying the film bags on a film bag roll feeding mechanism, and conveying the film bags to a film bag rolling mechanism by a film bag roll feeding mechanism;

step 200, adjusting the inside diameter of the constraint mechanism to limit the outer circumferential surface of the blown film bag to be not more than the inside diameter of the constraint mechanism;

step 300, cooling the film bag which continuously moves towards the film bag rolling and conveying mechanism by an air cooling mechanism so as to ensure that the physical form of the film bag is stable and the film bag is not easy to damage when being stressed;

and 400, restraining the final generation of the tube package into a flat structure by a multi-stage restraining structure, and removing wrinkles on the surfaces of the film bags for multiple times so as to prevent the surfaces of the film bags fed by the film bag feeding mechanism.

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