CN112092326A

CN112092326A - Plastic freshness protection package preparation processing machinery and preparation processing method

Info

Publication number: CN112092326A
Application number: CN202010946485.9A
Authority: CN
Inventors: 谢富玉; 陈先明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2020-12-18

Abstract

The invention relates to a plastic freshness protection package preparation processing machine and a preparation processing method, which comprises a workbench, wherein the workbench is fixedly arranged on the ground, an extruder is fixedly arranged on the ground below the middle part of the workbench surface, an air outlet is formed in the air outlet panels at two sides, the air outlet is inclined towards the upper part, an air cavity is formed between the two sides of the two air outlet panels and the inner part of an outer frame, and air in the air cavity is blown to a plastic film between two first guide wheels through an inclined structure of the air outlet, so that the plastic film can be assisted to move upwards by the air emitted from the air outlet, the plastic film can be ensured to move upwards, the guiding function of the first guide wheels can be kept, the phenomenon of adhesion caused by too tight adhesion of the plastic film and the first guide wheels can be avoided, and the plastic film can be gradually cooled in the contraction process, the subsequent bonding probability is reduced, and the product quality is improved.

Description

Plastic freshness protection package preparation processing machinery and preparation processing method

Technical Field

The invention relates to the technical field of plastic freshness protection package processing, in particular to a plastic freshness protection package preparation processing machine and a preparation processing method.

Background

The plastic film blowing process is that plastic is added into an extruder to be extruded out in a cylinder shape from an annular gap of a front end die after being melted, compressed air is introduced from a central hole of a core rod of a machine head to blow the cylinder into a bubble tube shape to obtain a bubble tube with certain blow-up multiple, and the bubble tube is finally folded into a double-layer film and rolled by a rolling device, but the existing equipment has some problems in the processing and production process:

although the existing equipment is cooled through the ring cooling device after being extruded in the extruder, in order to ensure that the thickness of the extruded plastic film is uniform, the extruded plastic cannot be completely cooled and needs to have certain stretchability, and the plastic film which is not completely cooled can have certain viscosity, but the existing equipment can not well cool and cool the extruded plastic film in the flat folding and subsequent rolling processes of the plastic film, so that the plastic film can be bonded with the guide roller of the forming device when the traction roller pulls and the flat folding processes, the thickness uniformity of the produced film can be influenced, the plastic film can be seriously crushed, once one part of the plastic film is crushed, the whole rolling process can be influenced, the rolling needs to be carried out again, and the efficiency is greatly reduced.

Disclosure of Invention

In order to solve the problems, the invention provides a plastic freshness protection package preparation processing machine which comprises a workbench, wherein the workbench is fixedly arranged on the ground, an extruder is fixedly arranged below the middle part of the workbench and positioned on the ground, a primary cooling device is fixedly arranged on the upper surface of the workbench, a secondary cooling device is fixedly arranged in the middle part of the upper surface of the primary cooling device, first traction rollers are arranged on the upper surface of the primary cooling device and positioned on the front side and the back side of the secondary cooling device in a penetrating manner, second traction rollers are fixedly arranged on the upper surface of the workbench and positioned on the right side of the primary cooling device, a winding device is fixedly arranged on the right side of the workbench and positioned on the ground, and the first traction rollers, the second traction rollers and the winding device are connected with one another through flat-folded plastic films;

the primary cooling device comprises an outer frame, a sliding groove is formed in the upper surface of the outer frame, a through hole is formed in the middle of the upper portion of the outer frame, the left side and the right side of the outer frame are separately and fixedly connected with an external air inlet, supporting legs are fixedly mounted on the lower portions of the left side and the right side of the outer frame, the bottom ends of the supporting legs are fixedly mounted on the upper surface of the table top of the workbench, air outlet plates are fixedly mounted between the upper end and the lower end of the two sides of the middle portion of the outer frame;

the secondary cooling device comprises a cooling bin, side baffles are fixedly arranged on the front side and the back side of the cooling bin respectively, side air ports are formed in the two side baffles respectively, a cooling rod penetrates through the cooling bin, a heat exchange chamber is fixedly and hermetically arranged outside the cooling bin, a pressing wheel is fixedly arranged at one end of the upper part of the cooling bin, a second guide wheel is fixedly arranged at one end of the lower part of the cooling bin, a sliding block is fixedly arranged at the bottom of the heat exchange chamber, side connecting blocks are fixedly arranged on the front side and the back side of the heat exchange chamber respectively, a screw rod is connected in the side connecting block on the back side of the heat exchange chamber through a thread, and a connecting rod is movably connected in the;

the winding device comprises an upright rod fixedly installed on the ground, a winding roller is movably installed on the upright rod, and a driving motor located on the ground is movably installed on a connecting shaft at one end of the front surface of the winding roller through a belt.

Preferably, the outer frame is of a hollow cubic structure lacking the middle part of the bottom edge, the two air outlet plates form a herringbone frame structure between the opening in the upper part of the outer frame and the lacking part in the lower part of the outer frame, and cooling air is sent into the air outlet plates and the outer frame through the outside, so that the plastic film can be cooled gradually in the upward moving and compressing process between the two air outlet plates, the phenomenon that the whole plastic film is at a higher temperature after being folded flatly is avoided, the plastic film is prevented from being bonded or even broken in the processes of folding flatly and rolling, and the product quality is further ensured.

Preferably, the two air outlet plates comprise air outlet panels fixedly arranged between the upper surface and the lower surface inside the outer frame, long chutes parallel to the side surfaces of the air outlet panels are formed in the air outlet panels, air outlets are formed in the air outlet panels in a manner of penetrating through the air outlet panels at equal intervals, first guide wheels are fixedly arranged between the opposite surfaces of the two air outlet panels at equal intervals, magnetic blocks are fixedly arranged at the tail ends of the long chutes in one ends of the upper portions of the air outlet panels, the upper portions of the air outlets are parallel to the horizontal plane, the lower portions of the air outlets are inclined upwards, intersection points of extension lines of outlet ends of the plastic films and the bottoms of the first guide wheels on the plastic films are located at the bottoms of the first guide wheels, when the plastic films are driven by the first traction rollers and the second traction rollers to move upwards under the action of the winding device, the plastic films can move upwards with low resistance under the action of the first guide wheels, the contact force between the incompletely cooled plastic film and the first guide wheel is reduced, so that the probability of bonding and even breakage of the plastic film is reduced on the premise of ensuring the plastic film to normally move upwards, and the quality of a product is improved.

Preferably, the regulating plate includes swing joint in the regulation panel of long chute, the vent has been seted up to the equidistance on the regulation panel, the position and the air outlet position of vent are corresponding and the opening shape also unanimous with long chute, the tip width on the upper portion of long chute is greater than the width of other positions, the one end on regulation panel upper portion is T shape and long chute swing joint, can control the air supply volume of air outlet through pulling regulation panel, just so can control the size of spun wind to plastic film's cooling rate and thrust, the production quality of good plastic film that so can be very accurate control.

Preferably, the cooling bin is in a semicircular ring structure, the second guide wheel is in a short structure which is arranged at two ends of the front side and the back side, a large gap is formed between the front side and the back side, the pinch roller penetrates through the front side and the back side and is fixedly arranged on the upper portion of the cooling bin, the air which is blown up by the lower primary cooling device and used for being excessively thick after being cooled can enter the annular cavity of the cooling bin from the bottom, the air which is blown up by the lower primary cooling device and used for being cooled is cooled again through the cooling rod in the cavity, the air after being cooled can rotate and circulate in the cavity to cool the plastic film passing through the cavity repeatedly, and then the air for being cooled can be discharged from the side air inlet of the side face, so that the plastic films wound finally cannot be bonded with each other, and the quality of a final product.

Preferably, the pinch roller comprises a fixed part arranged at the upper part of the cooling bin, the inner part of the pinch roller is movably arranged, the bottom close to the inside is movably arranged, one end of the side baffle is fixedly arranged, the opposite sides of the two side baffles are also of a structure which is enlarged from injury to downward flare angle, and the two side dams would be very close but would not come into contact with each other when the two are compressed to the greatest extent, the screw is a two-way screw with central symmetry, so that the blown gas in the plastic film can be completely extruded by two mutual compression, the plastic film is cooled circularly under the action of cold air in the cooling bin, the plastic film is well prevented from being bonded due to too tight pressing by the aid of bidirectional equidistant pushing action of the screw rods and the reutilized buffering action, therefore, the qualification rate of the product is improved to the maximum extent under the condition of ensuring that the normal process can be carried out.

Preferably, the preparation and processing method of the plastic freshness protection package preparation and processing machine comprises the following steps:

the method comprises the following steps: adding the plastic into an extruder for extrusion, and introducing inflation air by using a core rod of a machine head for inflation so that the extruded plastic rises in a cylindrical shape;

step two: the cylindrical plastic film drives the winding roller to rotate under the driving of the driving motor, so that the winding roller is respectively pulled by the second traction roller and the first traction roller to move upwards, the plastic film slides on the first guide wheels at two sides, and air in the air chamber is blown out through the air outlet to cool and promote movement, so that the cooling effect on the plastic film is ensured;

step three: air blown out from the primary cooling device enters the cooling bin from the bottom end of the secondary cooling device, is cooled in the cooling bin through the cooling rod in a rotating mode, is finally cooled for the plastic film, is screwed to move the screw rod, enables the two heat exchange chambers to move oppositely, and extrudes the two pressing wheels mutually, so that the two pressing wheels can more tightly press the plastic film to be pressed and folded;

step four: and finally, the flat-folded plastic film is wound on a winding roller under the guiding action of the first traction roller and the second traction roller, so that the whole plastic film is wound.

The invention has the beneficial effects that:

the air outlets are formed in the air outlet panels on the two sides, the air outlets are inclined towards the upper portion, an air cavity is formed between the two sides of the two air outlet panels and the inner portion of the outer frame, and air in the air cavity is blown to the plastic film between the two first guide wheels through the inclined structure of the air outlets, so that the plastic film can be assisted to move upwards by the air ejected from the air outlets, the guiding effect of the first guide wheels can be kept while the plastic film moves upwards, the phenomenon that the plastic film is stuck to the first guide wheels due to too tight adhesion of the plastic film and the first guide wheels can be avoided, the plastic film can be gradually cooled in the contraction process, the subsequent adhesion probability is reduced, and the product quality is improved;

secondly, a secondary cooling device is arranged at the top of the primary cooling device, cooling gas sprayed out of the primary cooling device enters the arc-shaped bin of the cooling bin after rising, the incoming air is cooled again by using an internal cooling rod, then the cooled air rotates and turbulences in the arc-shaped bin, final cooling can be repeatedly carried out in the arc-shaped bin of the cooling bin before the plastic film is flatly folded, the cooling rod can exchange absorbed heat into cooling liquid in a heat exchange chamber, the cooling effect of the whole secondary cooling device is ensured, and therefore the plastic film is prevented from being bonded and even broken in the final flatly folding process, the rewinding condition caused by broken fracture is avoided, the efficiency is improved, and the product quality can be ensured;

drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic front cross-sectional view of the inventive structure;

FIG. 2 is an enlarged view of the point A in FIG. 1;

FIG. 3 is an enlarged view of the point B in FIG. 1;

FIG. 4 is a schematic top view of the first and second cooling device assemblies of the present invention;

FIG. 5 is a schematic front cross-sectional view of a primary cooling apparatus of the present invention;

FIG. 6 is a schematic front sectional view of a secondary cooling device of the present invention;

fig. 7 is a schematic side sectional view of a secondary cooling device of the present invention.

In the figure: 1. a work table; 2. an extruder; 3. a primary cooling device; 31. an outer frame; 32. a chute; 33. a port; 34. an external air inlet; 35. supporting legs; 36. an air outlet plate; 361. an air outlet panel; 362. a long chute; 363. an air outlet; 364. a first guide wheel; 365. a magnetic block; 37. an adjusting plate; 371. an adjustment panel; 372. a vent; 4. a secondary cooling device; 41. a cooling bin; 42. a side dam; 43. a side tuyere; 44. a cooling bar; 45. a heat exchange chamber; 46. a pinch roller; 47. a second guide wheel; 48. a slider; 49. a side connecting block; 410. a screw; 411. a connecting rod; 5. a first pull roll; 6. a second pull roll; 7. a winding device; 71. erecting a rod; 72. a wind-up roll; 73. driving motor

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 to 7, a plastic freshness protection package preparation processing machine comprises a workbench 1, the workbench 1 is fixedly installed on the ground, an extruder 2 is fixedly installed on the ground below the middle part of the table top of the workbench 1, a primary cooling device 3 is fixedly installed on the upper surface of the table top of the workbench 1, a secondary cooling device 4 is fixedly installed in the middle part of the upper surface of the primary cooling device 3, first traction rollers 5 are installed on the upper surface of the primary cooling device 3 in a penetrating manner and are positioned on the front side and the back side of the secondary cooling device 4, a second traction roller 6 is fixedly installed on the upper surface of the workbench 1 and is positioned on the right side of the primary cooling device 3, a winding device 7 is fixedly installed on the ground on the right side of the workbench 1, and the first traction roller 5, the second traction roller 6 and the winding device 7 are connected with each other through a flat folded;

the primary cooling device 3 comprises an outer frame 31, a chute 32 is formed in the upper surface of the outer frame 31, a through opening 33 is formed in the middle of the upper portion of the outer frame 31, external air inlets 34 are fixedly connected to the left side and the right side of the outer frame 31 in a separated mode, supporting legs 35 are fixedly mounted on the lower portions of the left side and the right side of the outer frame 31, the bottom ends of the supporting legs 35 are fixedly mounted on the upper surface of the table board of the workbench 1, air outlet plates 36 are fixedly mounted between the upper end and the lower end of the two sides of the middle;

the secondary cooling device 4 comprises a cooling bin 41, side baffles 42 are fixedly mounted on the front surface and the back surface of the cooling bin 41 respectively, side air ports 43 are formed in the two side baffles 42 respectively, a cooling rod 44 penetrates through the cooling bin 41, a heat exchange chamber 45 is fixedly and hermetically mounted outside the cooling bin 41, a pinch roller 46 is fixedly mounted at one end of the upper portion of the cooling bin 41, a second guide wheel 47 is fixedly mounted at one end of the lower portion of the cooling bin 41, a sliding block 48 is fixedly mounted at the bottom of the heat exchange chamber 45, side connecting blocks 49 are fixedly mounted on the front surface and the back surface of the heat exchange chamber 45 respectively, a screw 410 is in threaded connection with the side connecting block 49 on the back surface of the heat exchange chamber 45, and a connecting;

the winding device 7 comprises a vertical rod 71 fixedly installed on the ground, a winding roller 72 is movably installed on the vertical rod 71, and a driving motor 73 located on the ground is movably installed on a connecting shaft at one end of the front face of the winding roller 72 through a belt.

Wherein, frame 31 is for lacking the hollow cube structure of base mid portion, two play aerofoil 36 constitute the propeller strut structure between the part that opening 33 on frame 31 upper portion and lower part lacked, through the wind chamber that constitutes between play aerofoil 36 and the frame 31, send into the cooling air wherein through the outside, make plastic film can progressively cool off at the in-process that two play aerofoil 36 between the rebound compression, still higher temperature after whole plastic film parallel folding is accomplished, thereby guaranteed that plastic film can not take place to bond the condition of even breakage at parallel folding and rolling in-process, and then guaranteed product quality.

Wherein, the two air outlet plates 36 comprise an air outlet panel 361 fixedly arranged between the upper surface and the lower surface inside the outer frame 31, a long chute 362 parallel to the side surface of the air outlet panel 361 is arranged inside the air outlet panel 361, an air outlet 363 is arranged in the air outlet panel 361 and penetrates through the air outlet panel 361 with equal interval, a first guide wheel 364 is fixedly arranged between the opposite surfaces of the two air outlet panels 361 with equal interval, a magnetic block 365 is fixedly arranged at the tail end of the long chute 362 in one end of the upper part of the air outlet panel 361, the upper part of the air outlet 363 is parallel to the horizontal plane, the lower part of the air outlet 363 is inclined upwards, and the intersection point of the extension line of the outlet end of the air outlet and the plastic film is arranged at the bottom of the first guide wheel 364, when the plastic film is driven by the first traction roller 5 and the second traction roller 6 to move upwards under the action of the winding device 7, the plastic film can move upwards under the action of the, the contact force between the incompletely cooled plastic film and the first guide wheel 364 is reduced, so that the probability of adhesion and even breakage of the plastic film is reduced on the premise of ensuring the plastic film to normally move upwards, and the quality of the product is improved.

Wherein, the adjusting plate 37 comprises an adjusting panel 371 movably connected in the long chute 362, the adjusting panel 371 is provided with vents 372 at equal intervals, the positions of the vents 372 correspond to the air outlet 363 and the opening shapes are consistent with the long chute 362, the width of the end part of the upper part of the long chute 362 is larger than the widths of other parts, one end of the upper part of the adjusting panel 371 is T-shaped and movably connected with the long chute 362, the air supply amount of the air outlet 363 can be controlled by pulling the adjusting panel 371, so that the cooling rate and the thrust of the ejected air to the plastic film can be controlled, and the production quality of the plastic film can be accurately controlled.

Wherein, cooling chamber 41 is the semicircle ring structure, second guide pulley 47 is for installing in the short structure at front and back both ends, and there is very big space between the two, pinch roller 46 is through front and back fixed mounting on cooling chamber 41 upper portion, the inside annular cavity of cooling chamber 41 can be entered into from the bottom to the used too thick air of cooling that lower part one-level cooling device 3 washed up, cooling rod 44 through the cavity is inside carries out renewed cooling process to the air that comes from below, the air after the cooling can be in cavity rotation circulation, carry out repeated cooling to the plastic film that passes through inside, then the air of cooling usefulness can be discharged in the side tuyere 43 of broadside, guarantee like this that the plastic film of final rolling can not take place mutual bonding, in order to guarantee the quality of final product.

Wherein, the pinch roller 46 comprises 461 fixedly arranged at the upper part of the

cooling bin

41, 462 is movably arranged inside the 461, 463 is movably arranged at the bottom part of the 462 close to the inside of the 461, 464 is fixedly arranged at one end of the 462, the opposite sides of the two side baffles 42 are also structures which are enlarged from the injury to the downward flare angle, and the two side dams 42 will be in close proximity to but not touching each other when the two 463 are compressed to the greatest extent, the screw 410 is a centrosymmetric bi-directional screw, so that the two 464 parts can be compressed with each other to expel the expanding gas from the plastic film, and the plastic film is circularly cooled under the action of cold air in the cooling bin 41, the two-way equidistant pushing action of the screw 410 is utilized, the buffer action of the 463 is utilized to well ensure that the plastic film is not bonded because the plastic film is pressed too tightly, therefore, the qualification rate of the product is improved to the maximum extent under the condition of ensuring that the normal process can be carried out.

The preparation and processing method of the plastic freshness protection package preparation and processing machine comprises the following steps:

the method comprises the following steps: adding the plastic into an extruder 2 for extrusion, and introducing inflation air by using a core rod of a machine head for inflation so that the extruded plastic rises in a cylindrical shape;

step two: the cylindrical plastic film drives the winding roller 72 to rotate under the driving of the driving motor 73, so that the plastic film is respectively pulled by the second traction roller 6 and the first traction roller 5 to move upwards, the plastic film slides on the first guide wheels 364 at two sides, and the air in the air chamber is blown out through the air outlet 363 to cool and promote movement, so that the cooling effect on the plastic film is ensured;

step three: air blown out from the primary cooling device 3 enters the cooling bin 41 from the bottom end of the secondary cooling device 4, is cooled in the cooling bin 41 through the cooling rod 44 in a rotating manner, is further cooled finally, is screwed with the screw 410, enables the two heat exchange chambers 45 to move oppositely, and extrudes the two pressing wheels 46 mutually, so that the two pressing wheels 46 can more tightly press the plastic film to be pressed and folded flatly;

step four: and finally, the flat-folded plastic film is wound on a winding roller 72 under the guiding action of the first traction roller 5 and the second traction roller 6, so that the whole plastic film is wound.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a plastics freshness protection package preparation processing machinery, includes workstation (1), workstation (1) fixed mounting is subaerial, its characterized in that: the extruder (2) is fixedly mounted on the ground below the middle part of the table top of the workbench (1), a primary cooling device (3) is fixedly mounted on the upper surface of the table top of the workbench (1), a secondary cooling device (4) is fixedly mounted in the middle of the upper surface of the primary cooling device (3), first traction rollers (5) are mounted on the two sides, located on the front side and the back side, of the secondary cooling device (4) and penetrate through the upper surface of the primary cooling device (3), second traction rollers (6) are fixedly mounted on the right side of the upper surface of the workbench (1), a winding device (7) is fixedly mounted on the ground on the right side of the workbench (1), and the first traction rollers (5), the second traction rollers (6) and the winding device (7) are connected with one another through flat-folded plastic films;

the primary cooling device (3) comprises an outer frame (31), a sliding groove (32) is formed in the upper surface of the outer frame (31), a through hole (33) is formed in the middle of the upper portion of the outer frame (31), the left side and the right side of the outer frame (31) are fixedly connected with an external air inlet (34) in a separated mode, supporting legs (35) are fixedly installed on the lower portions of the left side and the right side of the outer frame (31), the bottom ends of the supporting legs (35) are fixedly installed on the upper surface of the table top of the workbench (1), air outlet plates (36) are fixedly installed between the upper end and the lower end of the two sides of the middle of the outer frame (31) respectively, and;

the secondary cooling device (4) comprises a cooling bin (41), side baffles (42) are respectively and fixedly arranged on the front surface and the back surface of the cooling bin (41), side air ports (43) are respectively arranged on the two side baffles (42), a cooling rod (44) is installed in the cooling bin (41) in a penetrating way, a heat exchange chamber (45) is fixedly and hermetically installed outside the cooling bin (41), one end of the upper part of the cooling bin (41) is fixedly provided with a pressing wheel (46), one end of the lower part of the cooling bin (41) is fixedly provided with a second guide wheel (47), the bottom of the heat exchange chamber (45) is fixedly provided with a slide block (48), two sides of the front surface and the back surface of the heat exchange chamber (45) are respectively and fixedly provided with a side connecting block (49), a screw rod (410) is connected with the inner thread of a side connecting block (49) at the back of the heat exchange chamber (45), a connecting rod (411) is movably connected in a side connecting block (49) on the front surface of the heat exchange chamber (45);

coiling mechanism (7) contain fixed mounting in subaerial pole setting (71), movable mounting has wind-up roll (72) on pole setting (71), there is subaerial driving motor (73) to be located through belt movable mounting on the connecting axle of wind-up roll (72) positive one end.

2. The plastic freshness protection package preparation processing machine according to claim 1, characterized in that: the outer frame (31) is of a hollow cubic structure lacking the middle part of the bottom edge, and the two air outlet plates (36) form a herringbone frame structure between the through opening (33) at the upper part of the outer frame (31) and the lacking part at the lower part.

3. The plastic freshness protection package preparation processing machine according to claim 1, characterized in that: two air-out board (36) contain air-out panel (361) between the inside upper and lower surface of frame (31), long chute (362) parallel rather than the side surface is seted up to air-out panel (361), run through its horizontal thickness equidistant air outlet (363) in air-out panel (361), two equidistant fixed mounting has first guide pulley (364) between air-out panel (361) the opposite face, lie in long chute (362) end fixed mounting and have magnetic path (365) in the one end on air-out panel (361) upper portion, the shape of air outlet (363) is that upper portion is on a parallel with the horizontal plane, and the lower part is for the slope upwards and first guide pulley (364) bottom that the nodical point of extension line and plastic film at its exit end was located on it.

4. The plastic freshness protection package preparation processing machine according to claim 1, characterized in that: regulating plate (37) are including regulation panel (371) of swing joint in long chute (362), vent (372) have been seted up to the equidistant on regulating panel (371), the position and air outlet (363) position of vent (372) are corresponding and the opening shape also is unanimous with long chute (362), the tip width on the upper portion of long chute (362) is greater than the width at other positions, the one end on regulating panel (371) upper portion is T shape and long chute (362) swing joint.

5. The plastic freshness protection package preparation processing machine according to claim 1, characterized in that: the cooling bin (41) is in a semicircular ring structure, the second guide wheel (47) is in a short structure which is arranged at two ends of the front surface and the back surface, a large gap is formed between the front surface and the back surface, and the pressing wheel (46) penetrates through the front surface and the back surface and is fixedly arranged at the upper part of the cooling bin (41).

6. The plastic freshness protection package preparation processing machine according to claim 1, characterized in that: pinch roller (46) contain fixed mounting in cooling bin (41) upper portion (461), inside movable mounting of (461) has (462), bottom movable mounting that (462) are close to (461) inside has (463), the one end fixed mounting of (462) has (464), two the relative limit of side shield (42) is also from hindering the structure of down flare angle grow, and two side shield (42) can be very close to but can not take place mutual contact when two (463) compress the big maximum, screw rod (410) are centrosymmetric two-way screw rod.

7. The plastic freshness protection package preparation processing machine according to any one of claims 1 to 7, wherein: the preparation and processing method of the plastic freshness protection package preparation and processing machine comprises the following steps:

the method comprises the following steps: adding the plastic into an extruder (2) for extrusion, and introducing inflation air by using a core rod of a machine head for inflation so that the extruded plastic rises in a cylindrical shape;

step two: the cylindrical plastic film drives the winding roller (72) to rotate under the driving of the driving motor (73), so that the plastic film is pulled by the second traction roller (6) and the first traction roller (5) to move upwards respectively, the plastic film slides on the first guide wheels (364) at two sides, air in the air chamber is blown out through the air outlet (363) to cool and promote movement, and the cooling effect on the plastic film is ensured;

step three: air blown out from the primary cooling device (3) enters the cooling bin (41) from the bottom end of the secondary cooling device (4), is cooled in the cooling bin (41) in a rotating mode through the cooling rod (44), finally cools the plastic film, and then screws the screw rod (410) to enable the two heat exchange chambers (45) to move oppositely and extrude the two press wheels (46) mutually, so that the two press wheels (46) can more tightly press the plastic film to be compressed and folded;

step four: and finally, the flat-folded plastic film is wound on a winding roller (72) under the guiding action of a first traction roller (5) and a second traction roller (6) to complete the winding of the whole plastic film.