CN115071119A - Inflation film manufacturing machine is used in PE film production - Google Patents

Abstract

The invention relates to the technical field of film blowing machines, in particular to a film blowing machine for producing a PE film, which comprises: the speed reduction transmission machine case, the compression extrusion mechanism, the diversion component and the broad width discharging component are fixedly mounted on two sides of the speed reduction transmission machine case, the input end and the output end of the speed reduction transmission machine case are respectively in transmission connection with the output end of the driving motor and the input end of the compression extrusion mechanism, the bottom surface of the compression extrusion mechanism is fixedly connected with the top surface of the diversion component, the bottom end of the diversion component is communicated with the top surface of the broad width discharging component, and the compression extrusion mechanism comprises an extrusion seat, a compression rotary drum and a moving pressing plate. According to the invention, by arranging the novel compression extrusion mechanism and the wide-width discharging assembly structure, the long strip type compression extrusion mechanism is utilized to extrude the film material to eliminate internal bubbles, and then the wide-width extrusion is carried out, and the wide-width flaky film material is subjected to subsequent film blowing forming, so that the product can be subjected to large-area film blowing to manufacture a large-width PE film, and the practicability of the film blowing machine for producing the PE film is improved.

Description

Inflation film manufacturing machine is used in PE film production

Technical Field

The invention relates to the technical field of film blowing machines, in particular to a film blowing machine for producing a PE film.

Background

The PE shrink film is an industrial film-forming product and has the characteristics of high tensile strength, high elongation, good self-adhesion, high transparency and the like. The wrapping film is used for manual wrapping film and machine wrapping film, and can be widely applied to centralized packaging of various goods. PE winding membrane is mainly formed by the mixed extrusion of the poly industry alkene resin of several kinds of different brands, has excellent properties such as anti puncture, intensity height, twines the packing to the goods of stacking on the layer board, makes the packing material more firm clean and tidy to have superstrong waterproof function, by wide use, in foreign trade export, papermaking, five metals, plastics chemical industry, building materials, food and medicine trade.

The existing film (sheet) produced by the blown film structure for producing the PE film mainly through an extrusion blow molding method has the thickness of 0.01-0.3 mm (the film with the thickness of less than 0.25 mm is generally called as a film, and the sheet with the thickness of more than 0.25 mm is generally called as a sheet), and the film is low in thickness, too large in expansion width easily causes the film to extend to form a hole, the extension strength of a single-layer film is limited, the film is uneven in thickness and even damaged, the quality of a film product is not high, the extrusion state of plastic during single-screw extrusion is of a point-shaped structure, the thickness of the middle part and the thickness of the edge of the film material are difficult to keep consistent, and the operation is complicated. In view of this, research and improvement are made to solve the existing problems, and a film blowing machine for producing a PE film is provided to solve the problem that the existing film blowing machine for producing a PE film has limited extension strength of a film, and the purpose of solving the problem and improving the practical value is achieved by the technology.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art or the related art.

Therefore, the technical scheme adopted by the invention is as follows: a inflation film manufacturing machine for PE film production includes: the device comprises a speed reduction transmission case, a compression extrusion mechanism, a flow guide assembly and a wide discharging assembly, wherein driving motors are fixedly arranged on two sides of the speed reduction transmission case, the input end and the output end of the speed reduction transmission case are respectively in transmission connection with the output end of the driving motor and the input end of the compression extrusion mechanism, the bottom surface of the compression extrusion mechanism is fixedly connected with the top surface of the flow guide component, the bottom end of the flow guide component is communicated with the top surface of the wide discharging component, the compression extrusion mechanism comprises an extrusion seat, a compression rotary drum and a moving press plate, wherein an extrusion rotary cavity is arranged on the inner side of the extrusion seat, a feeding guide port is arranged on one side of the extrusion rotary cavity, the compression rotary drum is rotatably arranged at the inner side of the extrusion rotary cavity, the bottom surface of the extrusion rotary cavity is provided with an extrusion guide port, the number of the moving pressing plates is a plurality and the moving pressing plates are uniformly distributed on the surface of the compression rotary drum in the circumferential direction;

the water conservancy diversion subassembly is including reposition of redundant personnel guide holder, first valve unit and second valve unit, the quantity of first valve unit and second valve unit is a plurality of, and first valve unit and second valve unit are linear arrangement respectively and distribute in the both sides of reposition of redundant personnel guide holder, a plurality of inner flow channels and outer runner have been seted up to the inboard of reposition of redundant personnel guide holder, reposition of redundant personnel guide holder and first valve unit respectively with inner flow channel and outer runner one-to-one, wide width ejection of compact subassembly is including outer material guide head and inner core guide head, inner core guide head fixed mounting is in the inboard of outer material guide head, go out material guide head and the equal fixed mounting of inner core guide head because the bottom surface of reposition of redundant personnel guide holder.

The present invention in a preferred example may be further configured to: one end of the compression drum is fixedly connected with the output end of the speed reduction transmission case, the moving pressing plate is movably arranged on the surface of the compression drum, two ends of the moving pressing plate are in sliding butt joint with the inner side of the extrusion rotating cavity, and the feeding guide port and the extrusion guide port are arranged in the direction perpendicular to each other.

The present invention in a preferred example may be further configured to: the two-group equal division of motion clamp plate is the multiunit, and two motion clamp plates of every group are equipped with the linkage board about the centre of a circle symmetrical arrangement and the inboard of compression rotary drum, the both ends and the both sides motion clamp plate fixed connection of linkage board, ejection spring has been cup jointed on the surface of linkage board, ejection spring's both ends distribute in the inboard of compression rotary drum and the surperficial looks butt of motion clamp plate, and each group motion clamp plate is circumferencial direction evenly distributed in the surface of compression rotary drum.

The invention in a preferred example may be further configured to: the chamber is changeed in the extrusion is cylinder die cavity structure and feeding lead mouth and extrudes the tangential direction that the lead mouth all is the extrusion and changes the chamber intercommunication with the extrusion, and the one end of feeding lead mouth is circular-arc extension and extrudes the tip intercommunication of lead mouth, the tip of motion clamp plate changes the inboard of chamber and the inboard slip butt of feeding lead mouth with the extrusion, the compression rotary drum changes the chamber with the extrusion and is concentric the arrangement, the sectional area of feeding lead mouth is greater than the sectional area of extruding the lead mouth.

The present invention in a preferred example may be further configured to: the inside movable mounting of extruding the seat has the gate valve control lever, the bottom fixedly connected with valve rod of gate valve control lever, the inboard of inner core guide head is equipped with the case that is connected with the valve rod bottom.

The present invention in a preferred example may be further configured to: the flow dividing guide seat and the first control valve group are identical in structure and respectively comprise an electric push rod and a valve plate structure, the valve plate is fixedly installed at the output end of the electric push rod, and the shape and the size of the valve plate are matched with the shape and the size of the cross section of the inner flow channel and the cross section of the outer flow channel.

The present invention in a preferred example may be further configured to: the inner runners and the outer runners are alternately distributed at intervals, and the top surfaces of the inner core guide head and the outer material outlet guide head are respectively communicated with the bottom ends of the inner runners and the bottom ends of the outer runners.

The present invention in a preferred example may be further configured to: the bottom ends of the outer discharging guide head and the inner core guide head are provided with extrusion ports, the extrusion ports of the outer discharging guide head are sleeved outside the base port of the inner core guide head, and the extrusion ports of the outer discharging guide head and the inner core guide head are respectively 0.6-0.8mm and 0.2-0.3 mm.

The beneficial effects obtained by the invention are as follows:

1. according to the invention, by arranging the novel compression extrusion mechanism and the wide-width discharging assembly structure, the long strip type compression extrusion mechanism is utilized to extrude the film material to eliminate internal bubbles, and then the wide-width extrusion is carried out, and the wide-width flaky film material is subjected to subsequent film blowing forming, so that the product can be subjected to large-area film blowing to manufacture a large-width PE film, and the practicability of the film blowing machine for producing the PE film is improved.

2. According to the invention, the two sides of the feeding guide port and the extrusion rotary cavity structure which are symmetrically arranged are independently fed, two different formula materials can be extruded in the production process of the PE film, and the two different formula materials are matched with the wide discharging component to perform multilayer blending extrusion, or the same formula materials are adopted to jointly extrude a multilayer structure formed by a single material formed by the wide discharging component, so that the structural strength of a film blowing and forming film is improved, the structural strength of the film material is improved by the multilayer layered structure, and the broken hole of a film sheet caused by the extension of the film blowing is avoided.

3. According to the invention, by arranging the flow guide assembly structure, the plurality of inner runners and the plurality of outer runners which are alternately arranged in the flow guide assembly are utilized to divide the membrane material in the compression extrusion mechanism, and the flow dividing guide seat and the first control valve group are utilized to carry out independent control, so that the internal flow of a single or a plurality of inner runners and the internal flow of a plurality of outer runners can be randomly changed to adjust the balance of each runner, the discharging of the outer material guide head and the inner core guide head in the length direction is balanced, and the wide sheet discharging is carried out.

Drawings

FIG. 1 is a schematic overall structure diagram of one embodiment of the present invention;

FIG. 2 is a schematic view of the structure of a diversion assembly and a wide-width discharge assembly according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a compression extrusion mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a wide format take-off assembly in accordance with one embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of the inner and outer fluid passages according to one embodiment of the present invention;

FIG. 6 is a schematic view of a compressor drum and moving platens in accordance with one embodiment of the present invention;

FIG. 7 is a schematic view of a moving platen according to one embodiment of the present invention.

Reference numerals:

100. a reduction drive chassis; 110. a drive motor;

200. a compression extrusion mechanism; 210. extruding the base; 220. compressing the drum; 230. moving the press plate; 240. a gate valve control lever; 211. a feeding guide port; 212. extruding the rotary cavity; 213. extruding a guide port; 231. a linkage plate; 232. ejecting a spring; 241. a valve stem;

300. a flow guide assembly; 310. a shunt guide seat; 320. a first control valve group; 330. a second control valve group; 311. an inner flow passage; 312. an outer flow passage;

400. a wide discharge assembly; 410. a material outlet guide head; 420. an inner core guide head; 421. a valve core.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings in combination with the embodiments. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

The following describes a film blowing machine for producing a PE film according to some embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 1 to 7, the present invention provides a film blowing machine for producing PE film, including: a speed reduction transmission case 100, a compression extrusion mechanism 200, the device comprises a diversion component 300 and a wide discharging component 400, wherein driving motors 110 are fixedly installed on two sides of a speed reduction transmission case 100, the input end and the output end of the speed reduction transmission case 100 are respectively in transmission connection with the output end of the driving motor 110 and the input end of a compression extruding mechanism 200, the bottom surface of the compression extruding mechanism 200 is fixedly connected with the top surface of the diversion component 300, the bottom end of the diversion component 300 is communicated with the top surface of the wide discharging component 400, the compression extruding mechanism 200 comprises an extruding seat 210, a compression rotary drum 220 and a moving pressing plate 230, an extrusion rotary cavity 212 is formed in the inner side of the extruding seat 210, a feeding guide port 211 is formed in one side of the extrusion rotary cavity 212, the compression rotary drum 220 is rotatably installed in the inner side of the extrusion rotary cavity 212, an extrusion guide port 213 is formed in the bottom surface of the extrusion rotary cavity 212, and the moving pressing plates 230 are arranged on the surface of the compression rotary drum 220 in a plurality and in a uniform circumferential direction; the flow guide assembly 300 comprises a flow dividing guide seat 310, a first control valve group 320 and a second control valve group 330, the number of the first control valve group 320 and the second control valve group 330 is several, the first control valve group 320 and the second control valve group 330 are respectively distributed on two sides of the flow dividing guide seat 310 in a linear arrangement manner, a plurality of inner runners 311 and outer runners 312 are arranged on the inner side of the flow dividing guide seat 310, the flow dividing guide seat 310 and the first control valve group 320 are respectively in one-to-one correspondence with the inner runners 311 and the outer runners 312, the wide discharging assembly 400 comprises an outer discharging guide head 410 and an inner core guide head 420, the inner core guide head 420 is fixedly installed on the inner side of the outer discharging guide head 410, and the outer discharging guide head 410 and the inner core guide head 420 are both fixedly installed on the bottom surface of the flow dividing guide seat 310.

In this embodiment, one end of the compressor drum 220 is fixedly connected to the output end of the reduction gear box 100, the moving platen 230 is movably mounted on the surface of the compressor drum 220, and the two ends of the moving platen slidably abut against the inner side of the extrusion rotary cavity 212, and the feeding guide 211 and the extrusion guide 213 are arranged in a direction perpendicular to each other.

Specifically, the reduction gear case 100 and the driving motor 110 are used for driving the compressor drum 220 and the moving platen 230 to rotate in the extrusion rotary cavity 212, so that the material is introduced into the extrusion rotary cavity 212 through one end of the feeding guide port 211 and extruded by the rotation of the compressor drum 220, and the defoaming treatment of the material is performed in the extrusion process and the film blowing pressure is provided.

In this embodiment, the plurality of moving pressing plates 230 are divided into a plurality of groups, two groups of the moving pressing plates 230 are arranged in parallel, each group of the two moving pressing plates 230 is symmetrically arranged about the center of the compression drum 220, the inner side of each group of the two moving pressing plates 230 is provided with a linkage plate 231, two ends of each linkage plate 231 are fixedly connected with the moving pressing plates 230 on the two sides, the surface of each linkage plate 231 is sleeved with an ejection spring 232, two ends of each ejection spring 232 are distributed on the inner side of the compression drum 220 and abut against the surface of the moving pressing plate 230, and each group of the moving pressing plates 230 are uniformly distributed on the surface of the compression drum 220 in the circumferential direction.

Specifically, by using the movable moving pressing plates 230 on the surface of the compressor drum 220, the moving pressing plates 230 are moved by the compressor drum 220 to slide and eject and retreat on the surface of the compressor drum 220 in the eccentric rotation inside the extrusion rotary cavity 212 and are always in sliding abutment with the inner wall of the extrusion rotary cavity 212, so that independent conveying cavities are formed between adjacent moving pressing plates 230 to drive the material to be conveyed.

In this embodiment, the extrusion rotary cavity 212 is a cylindrical cavity structure, the feeding guide port 211 and the extrusion guide port 213 are both communicated with the extrusion rotary cavity 212 in a tangential direction of the extrusion rotary cavity 212, one end of the feeding guide port 211 extends in a circular arc shape and is communicated with the end of the extrusion guide port 213, the end of the moving platen 230 is in sliding contact with the inner side of the extrusion rotary cavity 212 and the inner side of the feeding guide port 211, the compression rotary drum 220 and the extrusion rotary cavity 212 are concentrically arranged, and the sectional area of the feeding guide port 211 is larger than that of the extrusion guide port 213.

Specifically, the compression drum 220 rotates inside the feeding guide port 211 and the extrusion rotary cavity 212, and rotates eccentrically relative to a communication cavity between one end of the feeding guide port 211 and the extrusion guide port 213, and the area of the feeding guide port 211 is larger than that of the extrusion guide port 213, so that the material conveying pressure is increased, and the material is extruded and output.

In this embodiment, a gate valve control rod 240 is movably installed inside the extrusion seat 210, a valve rod 241 is fixedly connected to the bottom end of the gate valve control rod 240, and a valve core 421 connected to the bottom end of the valve rod 241 is disposed inside the core guide head 420.

Specifically, the movement of the valve body 421 is controlled by the gate valve control lever 240, and the flow rate inside the core guide 420 is controlled by the valve body 421.

In this embodiment, the diversion guide holder 310 and the first control valve set 320 have the same structure and each include a structure of an electric push rod and a valve plate, the valve plate is fixedly mounted at the output end of the electric push rod, and the shape and size of the valve plate are matched with the shape and size of the cross section of the inner flow passage 311 and the outer flow passage 312.

Specifically, the inner flow channel 311 and the outer flow channel 312 are used to adjust the output flow rates of the shunt guide seat 310 and the first control valve group 320, so as to match the internal flow rate control of the inner core guide head 420 to perform the thickness proportioning of each film layer.

In this embodiment, the inner runners 311 and the outer runners 312 are alternately spaced, and the top surfaces of the inner core guide head 420 and the outer material guide head 410 are respectively communicated with the bottom ends of the inner runners 311 and the outer runners 312.

Further, the bottom ends of the outer feeding guide head 410 and the inner core guide head 420 are provided with extrusion ports, the extrusion ports of the outer feeding guide head 410 are sleeved outside the base port of the inner core guide head 420, and the extrusion ports of the outer feeding guide head 410 and the inner core guide head 420 are respectively 0.6-0.8mm and 0.2-0.3 mm.

Specifically, the multi-layer film blending base is carried out in extrusion by utilizing the sleeving structure of the outer material guide head 410 and the inner core guide head 420, and the two groups of extrusion rotating cavities 212 and the compression rotating drum 220 structure are matched to carry out the mixing layering base of different formula film materials, so that a multi-layer mixed film structure is formed, and the practicability of the film blowing machine is improved.

The working principle and the using process of the invention are as follows:

when the film blowing machine structure for PE film production is used, firstly, the feeding guide ports 211 at two sides of the extrusion base 210 are communicated with a mixed material feeding structure, a film material raw material in a molten state is introduced into the feeding guide ports 211 and the extrusion rotary cavity 212 by using a mixer or other feeding equipment, the driving motor 110 and the reduction transmission case 100 drive the compression drum 220 and the moving pressure plate 230 in the extrusion base 210 to perform rotary motion, the compression drum 220 moves the moving pressure plate 230 in the extrusion rotary cavity 212 during the rotation in the extrusion rotary cavity 212 to perform sliding ejection on the inner wall surface of the extrusion rotary cavity 212 and perform sliding ejection along the inner side of the compression drum 220 and retreat to be always in sliding abutment with the inner wall of the extrusion rotary cavity 212, so that independent conveying cavities are formed between the adjacent moving pressure plates 230 to drive the material to be conveyed, and the material is introduced into the extrusion rotary cavity 212 through one end of the feeding guide ports 211 and extruded through the rotation of the compression drum 220, utilize reposition of redundant personnel guide holder 310 and first control valve group 320 to carry out independent control, change single or a plurality of internal flow 311 and the internal flow size of outer runner 312 according to the ejection of compact condition, thereby it is balanced to make the ejection of compact on the material guide head 410 of going out and the inner core guide head 420 length direction, carry out the discharge of broad width slice, the membrane material is extruded through material guide head 410 of going out and inner core guide head 420, it extrudes the back and leads head 420 extrusion material with the inner core to wrap up the original diaphragm structure of formation multilayer to go out the material guide head 410, this original diaphragm can extend through follow-up blown film and be the diaphragm by a wide margin.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims (8)

1. The utility model provides a inflation film manufacturing machine is used in PE film production which characterized in that includes: the speed reduction transmission machine box (100), the compression extrusion mechanism (200), the flow guide assembly (300) and the wide discharging assembly (400), driving motors (110) are fixedly installed on two sides of the speed reduction transmission machine box (100), the input end and the output end of the speed reduction transmission machine box (100) are in transmission connection with the output end of the driving motors (110) and the input end of the compression extrusion mechanism (200) respectively, the bottom surface of the compression extrusion mechanism (200) is fixedly connected with the top surface of the flow guide assembly (300), the bottom end of the flow guide assembly (300) is communicated with the top surface of the wide discharging assembly (400), the compression extrusion mechanism (200) comprises an extrusion seat (210), a compression rotary drum (220) and a moving pressing plate (230), an extrusion rotary cavity (212) is formed in the inner side of the extrusion seat (210), a feeding guide opening (211) is formed in one side of the extrusion rotary cavity (212), and the compression rotary drum (220) is rotatably installed on the inner side of the extrusion rotary cavity (212), the bottom surface of the extrusion rotary cavity (212) is provided with an extrusion guide port (213), and a plurality of moving press plates (230) are uniformly arranged on the surface of the compression rotary drum (220) in the circumferential direction;

the flow guide assembly (300) comprises a flow dividing guide seat (310), a first control valve group (320) and a second control valve group (330), the number of the first control valve group (320) and the second control valve group (330) is several, and the first control valve set (320) and the second control valve set (330) are respectively distributed on two sides of the shunt guide seat (310) in a linear arrangement, the inner side of the flow dividing guide seat (310) is provided with a plurality of inner flow passages (311) and outer flow passages (312), the flow dividing guide seat (310) and the first control valve group (320) are respectively in one-to-one correspondence with the inner flow passage (311) and the outer flow passage (312), the wide discharging component (400) comprises an outer discharging guide head (410) and an inner core guide head (420), the inner core guide head (420) is fixedly arranged at the inner side of the outer discharging guide head (410), the outer discharging guide head (410) and the inner core guide head (420) are both fixedly arranged on the bottom surface of the shunting guide seat (310).

2. The film blowing machine for producing the PE film as claimed in claim 1, wherein one end of the compression drum (220) is fixedly connected with an output end of the reduction transmission case (100), the moving pressing plate (230) is movably mounted on the surface of the compression drum (220) and two ends of the moving pressing plate are in sliding abutting contact with the inner side of the extrusion rotating cavity (212), and the feeding guide port (211) and the extrusion guide port (213) are arranged in a mutually perpendicular direction.

3. The film blowing machine for producing the PE film, as recited in claim 1, wherein a plurality of the moving pressing plates (230) are divided into a plurality of groups equally two by two, each group of the two moving pressing plates (230) are symmetrically arranged about a circle center of the compression drum (220) and have linkage plates (231) on inner sides, two ends of each linkage plate (231) are fixedly connected with the moving pressing plates (230) on two sides, an ejection spring (232) is sleeved on a surface of each linkage plate (231), two ends of each ejection spring (232) are distributed on the inner sides of the compression drum (220) and abut against the surfaces of the moving pressing plates (230), and each group of the moving pressing plates (230) are uniformly distributed on the surface of the compression drum (220) in a circumferential direction.

4. The film blowing machine for producing the PE film as claimed in claim 1, wherein the extrusion rotating cavity (212) is of a cylindrical cavity structure, the feeding guide port (211) and the extrusion guide port (213) are both communicated with the extrusion rotating cavity (212) in a tangential direction of the extrusion rotating cavity (212), one end of the feeding guide port (211) extends in an arc shape and is communicated with the end of the extrusion guide port (213), the end of the moving pressing plate (230) is in sliding contact with the inner side of the extrusion rotating cavity (212) and the inner side of the feeding guide port (211), the compression rotating drum (220) and the extrusion rotating cavity (212) are concentrically arranged, and the sectional area of the feeding guide port (211) is larger than that of the extrusion guide port (213).

5. The film blowing machine for producing the PE film as claimed in claim 1, wherein a gate valve control rod (240) is movably mounted on the inner side of the extrusion seat (210), a valve rod (241) is fixedly connected to the bottom end of the gate valve control rod (240), and a valve core (421) connected to the bottom end of the valve rod (241) is arranged on the inner side of the inner core guide head (420).

6. The film blowing machine for producing the PE film as claimed in claim 1, wherein the diversion guide holder (310) and the first control valve set (320) have the same structure and comprise an electric push rod and a valve plate, the valve plate is fixedly mounted at the output end of the electric push rod, and the shape and size of the valve plate are matched with the shape and size of the cross section of the inner flow passage (311) and the cross section of the outer flow passage (312).

7. The film blowing machine for producing PE films as claimed in claim 1, wherein a plurality of the inner flow channels (311) and the outer flow channels (312) are alternately distributed at intervals, and the top surfaces of the inner core guide head (420) and the outer material guide head (410) are respectively communicated with the bottom ends of the inner flow channels (311) and the outer flow channels (312).

8. The film blowing machine for producing the PE film as claimed in claim 1, wherein the bottom ends of the outer discharging guide head (410) and the inner core guide head (420) are provided with extrusion ports, the extrusion ports of the outer discharging guide head (410) are sleeved outside the base port of the inner core guide head (420), and the extrusion ports of the outer discharging guide head (410) and the inner core guide head (420) are respectively 0.6-0.8mm and 0.2-0.3 mm.

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