WO2023030490A1 - 一种薄膜生产工艺 - Google Patents

一种薄膜生产工艺 Download PDF

Info

Publication number
WO2023030490A1
WO2023030490A1 PCT/CN2022/116755 CN2022116755W WO2023030490A1 WO 2023030490 A1 WO2023030490 A1 WO 2023030490A1 CN 2022116755 W CN2022116755 W CN 2022116755W WO 2023030490 A1 WO2023030490 A1 WO 2023030490A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
frame
plate
production process
bubble
Prior art date
Application number
PCT/CN2022/116755
Other languages
English (en)
French (fr)
Inventor
李拓托
龙其成
Original Assignee
安庆市康明纳包装有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 安庆市康明纳包装有限公司 filed Critical 安庆市康明纳包装有限公司
Publication of WO2023030490A1 publication Critical patent/WO2023030490A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/008—Wide strips, e.g. films, webs

Definitions

  • the invention relates to the technical field of film production, in particular to a film production process.
  • Transparent film is one of the essential raw materials for the production of medical paper-plastic packaging bags.
  • the traditional process for producing film is to directly blow out the film through a blow molding machine, and then wind it up by winding rollers after the film cools down.
  • the film texture of its making is not uniform.
  • the flow velocity is fast in some positions and slow in some positions, which makes the thickness of the produced film inconsistent in some places.
  • some parts of the film coming out of the blow molding head cool quickly, while some parts cool slowly. This will easily cause the tension of some parts of the produced film to be different, affecting the product quality of the film, and further affecting the subsequent medical paper.
  • the processing of plastic packaging bags brings troubles and affects the product quality of medical paper-plastic packaging bags.
  • the winding roller is usually fixedly arranged on one side of the nip roller, when the nip roller rotates, the winding roller should be taken into account, so the actual swing angle of the nip roller is usually not too large, so although it is different from the traditional The process has improved compared to the texture, but the degree of improvement is not high.
  • the main purpose of the present invention is to provide a film production process that can further improve the film quality produced by the blow molding machine.
  • a film production process which uses a film production device, the device includes a frame located below the blow molding head, a herringbone plate arranged on the frame, a clip set on the frame and located at the lower end of the herringbone plate Roller, winding roller set on the frame and turntable located at the bottom of the frame, the process of film production using the above film production device is as follows:
  • Winding process the film bubble passing through the herringbone board reaches the nip roller, and is flattened by the nip roller to form a double-layer film, and finally reaches the winding roller to be wound by the winding roller.
  • the herringbone board includes two board bodies, the distance between the two board bodies gradually decreases from top to bottom, and the distance between the two board bodies is adjustable.
  • the extruding process also includes a spraying process for spraying water mist on the outer surface of the film bubble coming out of the blowing head.
  • the spraying process sprays water mist on the outer surface of the film bubble through a spraying device, and the spraying device includes:
  • brackets Two oppositely arranged brackets, the brackets are semicircular, and the brackets are provided with a plurality of nozzles with nozzles facing the film bubbles;
  • the two sides of the support are connected with the frame through the poles.
  • the pole is slidably arranged on the frame, and the frame is provided with a third fixing block and a third screw corresponding to the pole one by one, and when the third screw is screwed with the third fixing block, One end passes through the third fixed block and is rotatably connected with the pole.
  • a baking process is also included, which is used to bake the film to speed up the drying speed of the film.
  • the film is dried by a baking device, the baking device is connected to the frame, and is located on the travel path of the film from the nip roller to the winding roller, and the baking device It consists of two heating plates, and the film passes between the two heating plates.
  • the turntable includes a bottom plate, a toothed plate and a motor, the toothed plate is rotatably arranged on the bottom plate, the motor is used to drive the toothed plate to rotate, the frame is installed on the toothed plate, and The toothed disc rotates together;
  • the toothed disk is ring-shaped, and through holes are opened at corresponding positions of the toothed disk on the bottom plate.
  • the turntable drives the frame to rotate, so that the herringbone plate and the pinch roller can continuously rotate around the central axis of the blow molding head, and the angle of the film bubble being twisted is It is greatly increased, which finally makes the texture of the finished film more uniform, and at the same time can change the texture of the film to further improve the quality of the film.
  • Fig. 1 is the schematic flow sheet of film production technique of the present invention
  • Fig. 2 is the three-dimensional view of film production device of the present invention.
  • Fig. 3 is the front view of Fig. 2;
  • Fig. 4 is a structural view of the spraying device in the present invention.
  • the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). ) under the relative positional relationship, movement conditions, etc. between the various components, if the specific posture changes, the directional indication will also change accordingly.
  • a film production process which uses a film 8 production device, the device includes a frame 1 positioned below the blow molding head 9, a herringbone plate arranged on the frame 1, a The nip roller 3 at the lower end of the word plate, the winding roller 11 arranged on the frame 1 and the turntable 4 located at the bottom of the frame 1, the process of using the above-mentioned film 8 production device to produce the film 8 is as follows:
  • Winding process the film bubble passing through the herringbone plate reaches the nip roller 3, and is flattened by the nip roller 3 to form a double-layer film 8, and finally reaches the winding roller 11 to be wound by the winding roller 11.
  • the film bubble coming out of the blow molding head 9 goes down, is extruded by the herringbone plate, and gradually flattened, and then passes through the pinch roller 3 at the bottom of the herringbone plate, and is clamped and flattened into a double-layer film 8, which is then wound up. Roller 11 winds up.
  • the turntable 4 drives the frame 1 to rotate around the central axis of the blow molding head 9, and the frame 1 drives the herringbone plate to rotate while rotating. Because the film bubble positioned above the nip roller 3 below the blow molding head 9 does not rotate with the frame 1, and the upper opening of the herringbone plate is large and the lower opening is small.
  • the pinch roller 3 and the herringbone plate can continuously rotate around the central axis of the blow molding head 9.
  • the twisting angle is greatly increased, so the uneven parts of the film 8 can be more evenly distributed on the film 8, and finally the texture of the finished film 8 is more uniform, and at the same time, the texture of the film 8 can be changed to further improve the quality of the film 8 .
  • the herringbone board includes two board bodies 2 , the distance between the two board bodies 2 decreases gradually from top to bottom, and the distance between the two board bodies 2 is adjustable.
  • Such design can adjust the opening size of the herringbone plate according to the actual conditions of use, so that the herringbone plate can be applied to films of various sizes and improve the adaptability of the herringbone plate.
  • both sides of the plate body 2 are respectively provided with a first rod body 21 and a second rod body 22, the first rod body 21 is located above the plate body 2, and the second rod body 22 is located below the plate body 2;
  • a first push member 5 is provided at the position of the corresponding first rod body 21 of the frame 1, which is used to push the first rod body 21 to drive the upper part of its board body 2 to approach and move away from another board body 2;
  • a second push member 6 is provided at the position corresponding to the second rod body 22 of the frame 1 , for pushing the second rod body 22 to drive the lower part of the board body 2 to approach and move away from the other board body 2 .
  • the first pushing member 5 includes two first fixed blocks 51 fixed to the frame 1, the two first fixed blocks 51 are spaced apart, and the two first fixed blocks 51 are rotatably provided with a first screw 52, A moving block 53 is disposed on the first screw 52 , and the moving block 53 is threadedly engaged with the first screw 52 , and one end of the first rod body 21 is rotatably connected with the moving block 53 .
  • the second pushing part 6 comprises:
  • a threaded sleeve 61 one end of which is rotationally connected with the second rod body 22;
  • the second screw rod 62 one end is screwed with the threaded sleeve 61, and the other end extends out of the threaded sleeve 61 and is rotatably connected with the rotating cylinder 64;
  • the second fixed block 63 is fixed on the frame 1 and is rotatably connected with the drum 64 .
  • a spraying process is also included, for spraying water mist on the outer surface of the film bubble coming out of the blow molding head 9 .
  • natural cooling or air cooling is usually used in the prior art to cool down the film. This method takes a long time to cool down, and it is necessary to increase the travel distance of the film or reduce the speed of the bubbles coming out of the blowing head. Allow sufficient time for the film to cool.
  • the cooling rate of the film can be accelerated, the cooling time of the film can be reduced, and the travel distance of the film can be shortened, the equipment structure can be simplified, and the production speed of the film can be increased at the same time.
  • the blow molding head is above the film bubble, so there is no need to worry that the liquid will enter the blow molding head and affect the normal operation of the blow molding head.
  • the spraying process uses a spraying device 7 to spray water mist on the outer surface of the bubble, and the spraying device 7 includes:
  • brackets 71 Two oppositely arranged brackets 71, the brackets 71 are semicircular, and the brackets 71 are provided with a plurality of nozzles 711 with nozzles facing the film bubble;
  • Both sides of the bracket 71 are connected with the frame 1 through the struts 72 .
  • the frame when the frame is rotating, it can drive the spraying device to rotate, and spray water mist on the outer surface of the film bubble from various angles, so that the water mist can be sprayed more evenly, and avoid some positions that have not been contaminated with water mist for a long time. , causing the cooling rate to slow down, resulting in different tensions and affecting the product quality of the film.
  • the pole 72 is slidably arranged on the frame 1, and the frame 1 is provided with a third fixing block 73 and a third screw 74 corresponding to the pole 72 one by one, and the third screw 74 is connected to the third While the fixing block 73 is screwed together, one end thereof passes through the third fixing block 73 and is rotatably connected with the pole 72 .
  • the support rod can drive the support to move, and the distance between the two support can be adjusted to be suitable for various bubbles with different diameters.
  • a baking process is further included for baking the film 8 to speed up the drying speed of the film 8 .
  • the baking process dries the film 8 through the baking device 12, the baking device 12 is connected with the frame 1, and is located on the travel path of the film 8 from the nip roller 3 to the take-up roller 11, the baking
  • the grilling device 12 is composed of two heating plates 121 , and the film 8 passes between the two heating plates 121 .
  • the turntable 4 includes a bottom plate 41, a toothed plate 42 rotatably arranged on the bottom plate 41, and a motor 43 arranged on the bottom plate 41 to drive the toothed plate 42 to rotate.
  • the frame 1 is installed on the toothed plate 42, and The toothed disc 42 rotates together, and the toothed disc 42 is annular, and the bottom plate 41 is provided with a through hole at a position corresponding to the toothed disc 42 .
  • the outer side of the toothed disc 42 has teeth, and the rotating shaft of the motor 43 is provided with a gear 44 meshed with the toothed disc 42 , and the motor 43 drives the toothed disc 42 to rotate through the gear 44 , and then the frame 1 is rotated.
  • a water collection tray can be set at the through hole of the bottom plate to collect and reuse the water flowing down from the outer surface of the film, or a water diversion canal can be set up under the through hole to lead the water out of the equipment.
  • a bearing is arranged between the bottom plate 41 and the toothed disc 42, and the toothed disc 42 rotates relative to the bottom plate 41 through the bearing.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

本发明提供了一种薄膜生产工艺，其使用了一种薄膜生产装置，该装置包括位于吹塑头下方的机架、设置在机架上的人字板、设置在机架上且位于人字板下端的夹辊、设置在机架上的收卷辊以及位于机架底部的转盘，采用上述薄膜生产装置进行薄膜生产的工艺如下：转动工序使机架以及机架上的设备一同转动；挤压工序通过人字板对膜泡的侧部形成挤压；收卷工序对薄膜，进行收卷。本发明，通过转盘带动机架转动，使人字板和夹辊可以不断的绕吹塑头的中心轴进行转动，膜泡在人字板以及夹辊的共同作用下，膜泡被扭转的角度被大大增加，最终使成品薄膜的质地更加均匀，同时还能改变薄膜的纹理，进一步提高薄膜的质量。

Description

一种薄膜生产工艺 技术领域
本发明涉及薄膜生产技术领域，具体涉及一种薄膜生产工艺。
背景技术
在生产医用纸塑包装袋时，透明薄膜是其必不可少的原材料之一。传统的用于生产薄膜的工艺是直接通过吹塑机将薄膜吹出，然后待薄膜冷却后通过收卷辊进行收卷。
但是，采用这种传统的工艺在制作薄膜时，其制作出的薄膜质地并不均匀。例如吹塑机的吹塑头，因温度不均匀，导致部分位置流速快，部分位置流速慢，这就使生产出来的薄膜部分地方厚度不一致。又比如，从吹塑头出来的薄膜部分位置冷却的快，而部分位置冷却的慢，这就容易使生产出来的薄膜部分地方紧绷度不同，影响薄膜的产品质量，进而给后续的医用纸塑包装袋的加工带来麻烦，影响医用纸塑包装袋的产品质量。
为了解决上述难题，现有技术中出现了一种新型的生产薄膜的工艺，其将吹塑机的吹塑头放置在下方，在吹塑头的上方设置夹辊，夹辊由伺服电机驱动绕吹塑头的中心轴以一定角度进行往复摆动。工作时，吹气机构向膜泡吹入压缩空气使膜泡吹胀，膜泡不断向上运行，经过夹辊并被夹辊夹扁成为双层薄膜，于此同时伺服电机驱动夹辊，绕吹塑头的中心轴以一定角度进行往复摆动，使成品的薄膜的质地较为均匀。
然而，上述的工艺中因收卷辊通常固定设置在夹辊的一侧，夹辊在转动时，要兼顾到收卷辊，故而夹辊的实际摆动角度通常不会太大，因此虽然与传统工艺相比质地有了改善，但改善程度不高。
因此需要一款能够进一步提高吹塑机生产出的薄膜质地的生产工艺。
发明内容
本发明的主要目的在于提供一种能够进一步提高吹塑机生产出的薄膜质地的一种薄膜生产工艺。
为实现上述目的，本发明的技术方案是这样实现的：
一种薄膜生产工艺，其使用了一种薄膜生产装置，该装置包括位于吹塑头下方的机架、设置在机架上的人字板、设置在机架上且位于人字板下端的夹辊、设置在机架上的收卷辊以及位于机架底部的转盘，采用上述薄膜生产装置进行薄膜生产的工艺如下：
S1、转动工序：启动转盘带动机架绕吹塑头的中心轴进行转动，并使机架上的设备随机架一同转动；
S2、挤压工序：从吹塑头出来的膜泡下行，经过上面开口大、下面开口小的人字板，人字板在机架的转动带动下相对吹塑头的位置不断改变，于此同时不断对膜泡的侧部形成挤压；
S3、收卷工序：穿出人字板的膜泡到达夹辊，并被夹辊夹扁成为双层薄膜，最终到达收卷辊被收卷辊收卷。
进一步地，所述人字板包括两个板体，两个板体之间的距离自上而下，逐渐减小，且两个板体之间的距离可调。
进一步地，所述挤压工序之前还包括喷撒工序，用于向从吹塑头出来的膜泡的外表面喷撒水雾。
进一步地，所述喷撒工序通过喷撒装置对膜泡的外表面喷撒水雾，所述喷撒装置包括：
两个相对设置的支架，所述支架呈半圆形，支架上设置有多个喷口朝向膜泡的喷头；
所述支架的两侧通过支杆与机架连接。
进一步地，所述支杆滑动设置在机架上，机架上设置有与支杆一一对应的第三固定块和第三螺杆，所述第三螺杆与第三固定块螺旋配合的同时，其一端穿过第三固定块与支杆转动连接。
进一步地，挤压工序之后，收卷工序之前，还包括烘烤工序，用于对薄膜进行烘烤，加快薄膜干燥的速度。
进一步地，所述烘烤工序通过烘烤装置对薄膜进行烘干，所述烘烤装置与机架连接，并位于薄膜从夹辊到收卷辊之间的行进路径上，所述烘烤装置由两个发热板组成，薄膜从两个发热板之间穿过。
进一步地，所述转盘包括底板、齿盘以及电机，所述齿盘转动设置在底板上，所述电机用于带动齿盘转动，所述机架安装在所述齿盘上，并随所述齿盘一同转动；
所述齿盘呈环形，所述底板相应齿盘位置处开设有通孔。
本发明的有益效果体现在：
本发明，通过转盘带动机架转动，使人字板和夹辊可以不断的绕吹塑头的中心轴进行转动，膜泡在人字板以及夹辊的共同作用下，膜泡被扭转的角度被大大增加，最终使成品薄膜的质地更加均匀，同时还能改变薄膜的纹理，进一步提高薄膜的质量。
附图说明
在附图中：
图1为本发明所述的薄膜生产工艺的流程示意图；
图2为本发明所述的薄膜生产装置的立体视图；
图3为图2的正视图；
图4为本发明中所述喷撒装置的结构示图。
附图标记说明：
1-机架，11-收卷辊，12-烘烤装置，121-发热板，2-板体，21-第一杆体，22-第二杆体，3-夹辊，4-转盘，41-底板，42-齿盘，43-电机，44-齿轮，5-第一推动部件，51-第一固定块，52-第一螺杆，53-移动块，6-第二推动部件，61-螺纹套筒，62-第二螺杆，63-第二固定块，64-转筒，7-喷撒装置，71-支架，711-喷头，72-支杆，73-第三固定块，74-第三螺杆，8-薄膜，9-吹塑头。
具体实施方式
下面将结合附图和实施例对本发明做进一步详细的说明，显然，所描述的实施例仅仅是发明的一部分实施例，而不是全部的实施例。在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。基于发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于发明保护的范围。
需要说明，若发明实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若发明实施例中有涉及“第一”、“第二”等的描述，则该“第 一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，全文中出现的“和/或”的含义，包括三个并列的方案，以“A和/或B”为例，包括A方案、或B方案、或A和B同时满足的方案。另外，“多个”指两个以上。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在发明要求的保护范围之内。
参见图1至图4。
一种薄膜生产工艺，其使用了一种薄膜8生产装置，该装置包括位于吹塑头9下方的机架1、设置在机架1上的人字板、设置在机架1上且位于人字板下端的夹辊3、设置在机架1上的收卷辊11以及位于机架1底部的转盘4，采用上述薄膜8生产装置进行薄膜8生产的工艺如下：
S1、转动工序：启动转盘4带动机架1绕吹塑头9的中心轴进行转动，并使机架1上的设备随机架1一同转动；
S2、挤压工序：从吹塑头9出来的膜泡下行，经过上面开口大、下面开口小的人字板，人字板在机架1的转动带动下相对吹塑头9的位置不断改变，于此同时不断对膜泡形成挤压；
S3、收卷工序：穿出人字板的膜泡到达夹辊3，并被夹辊3夹扁成为双层薄膜8，最终到达收卷辊11被收卷辊11收卷。
具体实施中，从吹塑头9出来的膜泡下行，经过人字板的挤压，逐渐扁平化，然后通过人字板底部的夹辊3，夹扁成为双层薄膜8，之后被收卷辊11 收卷。于此同时，转盘4带动机架1绕吹塑头9的中心轴进行转动，机架1在转动的同时带动人字板转动。因位于吹塑头9下方夹辊3上方的膜泡不随机架1进行转动，且人字板上面开口大、下面开口小。故而在膜泡不断向下行进的过程中，人字板不停的改变对膜泡挤压的位置，使膜泡因挤压而相互靠近的两侧不断改变。同时因夹辊3以及人字板在机架1的带动下，其可以不断的绕吹塑头9的中心轴进行转动，膜泡在人字板以及夹辊3的共同作用下，膜泡被扭转的角度被大大增加，因此薄膜8的不均匀的部位能够更加均匀的分摊在薄膜8上，最终使成品的薄膜8质地更加均匀，同时还能改变薄膜8的纹理，进一步提高薄膜8的质量。
在一实施例中，人字板包括两个板体2，两个板体2之间的距离自上而下，逐渐减小，且两个板体2之间的距离可调。这样设计，能够根据实际使用状况，因地制宜的调整人字板的开口大小，使人字板能够适用与各种尺寸的薄膜，提高人字板的适应性。
优选的，板体2的两侧分别设置有第一杆体21和第二杆体22，第一杆体21位于板体2的上方，第二杆体22位于板体2的下方；
机架1的相应第一杆体21的位置处设置有第一推动部件5，用于推动第一杆体21带动其板体2的上部靠近和远离另一个板体2；
机架1的相应第二杆体22的位置处设置有第二推动部件6，用于推动第二杆体22带动其板体2的下部靠近和远离另一个板体2。
其中，第一推动部件5包括与机架1固定的两个第一固定块51，两个第一固定块51之间间隔设置，两个第一固定块51上转动设置有第一螺杆52，第一螺杆52上设置有移动块53，该移动块53与第一螺杆52螺纹配合，第一 杆体21的一端与移动块53转动连接。
第二推动部件6包括：
螺纹套筒61，其一端与第二杆体22转动连接；
第二螺杆62，一端与螺纹套筒61螺旋配合，另一端伸出螺纹套筒61并转动连接有转筒64；
第二固定块63，固定在机架1上，并与转筒64转动连接。
在一实施例中，在挤压工序之前还包括喷撒工序，用于向从吹塑头9出来的膜泡的外表面喷撒水雾。这样设计，因现有技术中通常采用自然冷却或风冷的方式，对薄膜进行降温，这种方式降温时间长，需要增加薄膜的行进路程或降低从吹塑头出来的膜泡的速度，以使薄膜有足够时间进行冷却。而本申请通过向膜泡的外表面喷撒水雾能够加快薄膜的降温速度，降低薄膜的冷却时长，进而就可以缩短薄膜的行进路程，简化设备结构，同时提高薄膜的生产速度。同时，因膜泡向下移动，吹塑头在膜泡的上方，因此不用担心液体会进入吹塑头内，影响吹塑头的正常工作。
在一实施例中，该喷撒工序通过喷撒装置7对膜泡的外表面喷撒水雾，该喷撒装置7包括：
两个相对设置的支架71，该支架71呈半圆形，支架71上设置有多个喷口朝向膜泡的喷头711；
支架71的两侧通过支杆72与机架1连接。
具体实施中，机架在转动时，能够带动喷撒装置进行转动，从各个角度对膜泡的外表面喷撒水雾，使水雾喷撒的更加均匀，避免部分位置因长时间没有沾染水雾，导致冷却速度变慢，造成紧绷度不同，影响薄膜的产品质量。
在一实施例中，支杆72滑动设置在机架1上，机架1上设置有与支杆72一一对应的第三固定块73和第三螺杆74，该第三螺杆74与第三固定块73螺旋配合的同时，其一端穿过第三固定块73与支杆72转动连接。这样设计，通过转动第三螺杆即可使支杆带动支架进行移动，对两个支架之间的距离进行调节，以适用于各种不同直径的膜泡。其中，因支杆与机架之间的滑动结构为本领域技术人员的公知常识，例如可采用附图中的T型滑槽和T型滑块之间的滑动结构来实现支杆与机架之间的滑动连接。故此处不做赘述。
在一实施例中，在挤压工序之后，收卷工序之前，还包括烘烤工序，用于对薄膜8进行烘烤，加快薄膜8干燥的速度。
其中，烘烤工序通过烘烤装置12对薄膜8进行烘干，该烘烤装置12与机架1连接，并位于薄膜8从夹辊3到收卷辊11之间的行进路径上，该烘烤装置12由两个发热板121组成，薄膜8从两个发热板121之间穿过。
在一实施例中，转盘4包括底板41、转动设置在底板41上的齿盘42以及设置在底板41上用于带动齿盘42转动的电机43，机架1安装在齿盘42上，随齿盘42一同转动，该齿盘42呈环形，底板41相应齿盘42的位置处开设有通孔。齿盘42的外侧具有齿牙，电机43的转轴上设置有与齿盘42相啮合的齿轮44，电机43通过齿轮44带动齿盘42转动，进而使机架1转动。
这样设计，通过使齿盘呈环形并在底板上开设有通孔，这样由喷撒装置喷撒在膜泡外表面的水雾，顺着膜泡的外表面向下流动，最终进入底板的通孔处，可在底板的通孔处设置集水盘对从薄膜的外表面流下的水进行收集再利用，也可以在通孔的下方开设引水渠，将水引至设备外。
优选的，底板41与齿盘42之间设置有轴承，齿盘42通过轴承相对底板 41转动。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同更换、改进等，均应包含在本发明的保护范围之内。

Claims (8)

  1. 一种薄膜生产工艺，其特征在于，使用了一种薄膜(8)生产装置，该装置包括位于吹塑头(9)下方的机架(1)、设置在机架(1)上的人字板、设置在机架(1)上且位于人字板下端的夹辊(3)、设置在机架(1)上的收卷辊(11)以及位于机架(1)底部的转盘(4)，采用上述薄膜(8)生产装置进行薄膜(8)生产的工艺如下：
    S1、转动工序：启动转盘(4)带动机架(1)绕吹塑头(9)的中心轴进行转动，并使机架(1)上的设备随机架(1)一同转动；
    S2、挤压工序：从吹塑头(9)出来的膜泡下行，经过上面开口大、下面开口小的人字板，人字板在机架(1)的转动带动下相对吹塑头(9)的位置不断改变，于此同时不断对膜泡的侧部形成挤压；
    S3、收卷工序：穿出人字板的膜泡到达夹辊(3)，并被夹辊(3)夹扁成为双层薄膜(8)，最终到达收卷辊(11)被收卷辊(11)收卷。
  2. 根据权利要求1所述的薄膜(8)生产工艺，其特征在于，所述人字板包括两个板体(2)，两个板体(2)之间的距离自上而下，逐渐减小，且两个板体(2)之间的距离可调。
  3. 根据权利要求1或2所述的薄膜(8)生产工艺，其特征在于，所述挤压工序之前还包括喷撒工序，用于向从吹塑头(9)出来的膜泡的外表面喷撒水雾。
  4. 根据权利要求3所述的薄膜(8)生产工艺，其特征在于，所述喷撒工序通过喷撒装置(7)对膜泡的外表面喷撒水雾，所述喷撒装置(7)包括：
    两个相对设置的支架(71)，所述支架(71)呈半圆形，支架(71)上设置有多个喷口朝向膜泡的喷头(711)；
    所述支架(71)的两侧通过支杆(72)与机架(1)连接。
  5. 根据权利要求4所述的薄膜(8)生产工艺，其特征在于，所述支杆(72)滑动设置在机架(1)上，机架(1)上设置有与支杆(72)一一对应的第三固定块(73)和第三螺杆(74)，所述第三螺杆(74)与第三固定块(73)螺旋配合的同时，其一端穿过第三固定块(73)与支杆(72)转动连接。
  6. 根据权利要求1或2所述的薄膜(8)生产工艺，其特征在于，挤压工序之后，收卷工序之前，还包括烘烤工序，用于对薄膜(8)进行烘烤，加快薄膜(8)干燥的速度。
  7. 根据权利要求6所述的薄膜(8)生产工艺，其特征在于，所述烘烤工序通过烘烤装置(12)对薄膜(8)进行烘干，所述烘烤装置(12)与机架(1)连接，并位于薄膜(8)从夹辊(3)到收卷辊(11)之间的行进路径上，所述烘烤装置(12)由两个发热板(121)组成，薄膜(8)从两个发热板(121)之间穿过。
  8. 根据权利要求1或2所述的薄膜(8)生产工艺，其特征在于，所述转盘(4)包括底板(41)、齿盘(42)以及电机(43)，所述齿盘(42)转动设置在底板(41)上，所述电机(43)用于带动齿盘(42)转动，所述机架(1)安装在所述齿盘(42)上，并随所述齿盘(42)一同转动；
    所述齿盘(42)呈环形，所述底板(41)相应齿盘(42)位置处开设有通孔。
PCT/CN2022/116755 2022-03-25 2022-09-02 一种薄膜生产工艺 WO2023030490A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210307336.7A CN114603841A (zh) 2022-03-25 2022-03-25 一种薄膜生产工艺
CN202210307336.7 2022-03-25

Publications (1)

Publication Number Publication Date
WO2023030490A1 true WO2023030490A1 (zh) 2023-03-09

Family

ID=81866688

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/116755 WO2023030490A1 (zh) 2022-03-25 2022-09-02 一种薄膜生产工艺

Country Status (3)

Country Link
CN (1) CN114603841A (zh)
WO (1) WO2023030490A1 (zh)
ZA (1) ZA202210219B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114603841A (zh) * 2022-03-25 2022-06-10 安庆市康明纳包装有限公司 一种薄膜生产工艺

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1385295A (zh) * 2002-06-03 2002-12-18 汕头市江鸿塑胶设备有限公司 生产双向拉伸塑料薄膜的方法及设备
CN2853376Y (zh) * 2005-12-06 2007-01-03 陈诗明 下吹式膜泡旋转共挤吹膜机
CN207172710U (zh) * 2017-04-17 2018-04-03 兰州鑫银环橡塑制品有限公司 一种全生物降解地膜定型冷却装置
CN212707990U (zh) * 2020-06-09 2021-03-16 湖北省金中德科技机械设备有限责任公司 一种吹膜机牵引倒立立式旋转结构
WO2021074021A1 (de) * 2019-10-14 2021-04-22 Windmöller & Hölscher Kg Blasfolienanlage und verfahren zur herstellung einer folienbahn
CN213055991U (zh) * 2020-09-09 2021-04-27 湖北科瑞斯材料科技有限公司 一种新型吹膜机人字夹板
CN114603841A (zh) * 2022-03-25 2022-06-10 安庆市康明纳包装有限公司 一种薄膜生产工艺
CN114654711A (zh) * 2022-03-25 2022-06-24 安庆市康明纳包装有限公司 一种复合膜生产装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107511994B (zh) * 2016-06-17 2019-07-12 广东金明精机股份有限公司 旋转牵引吹膜生产工艺
CN206703511U (zh) * 2017-04-27 2017-12-05 潍坊飞斯特塑胶有限公司 一种吹塑薄膜输送用人字型导向板
CN211763464U (zh) * 2020-02-24 2020-10-27 山东鑫基地塑料机械有限公司 一种有效降低摩擦系数的人字板
CN212400344U (zh) * 2020-06-08 2021-01-26 秦皇岛恒起科技有限公司 一种热缩膜旋转牵引装置的人字夹板结构

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1385295A (zh) * 2002-06-03 2002-12-18 汕头市江鸿塑胶设备有限公司 生产双向拉伸塑料薄膜的方法及设备
CN2853376Y (zh) * 2005-12-06 2007-01-03 陈诗明 下吹式膜泡旋转共挤吹膜机
CN207172710U (zh) * 2017-04-17 2018-04-03 兰州鑫银环橡塑制品有限公司 一种全生物降解地膜定型冷却装置
WO2021074021A1 (de) * 2019-10-14 2021-04-22 Windmöller & Hölscher Kg Blasfolienanlage und verfahren zur herstellung einer folienbahn
CN212707990U (zh) * 2020-06-09 2021-03-16 湖北省金中德科技机械设备有限责任公司 一种吹膜机牵引倒立立式旋转结构
CN213055991U (zh) * 2020-09-09 2021-04-27 湖北科瑞斯材料科技有限公司 一种新型吹膜机人字夹板
CN114603841A (zh) * 2022-03-25 2022-06-10 安庆市康明纳包装有限公司 一种薄膜生产工艺
CN114654711A (zh) * 2022-03-25 2022-06-24 安庆市康明纳包装有限公司 一种复合膜生产装置

Also Published As

Publication number Publication date
CN114603841A (zh) 2022-06-10
ZA202210219B (en) 2022-09-28

Similar Documents

Publication Publication Date Title
WO2023030490A1 (zh) 一种薄膜生产工艺
CN210362399U (zh) 一种流延机
US3960997A (en) Method of manufacturing biaxially stretched shrink foils and an apparatus for carrying the method into effect
TW436411B (en) Apparatus for producing plastic film
CN207954629U (zh) 一种用于三层供挤吹膜机的导向架
US3180909A (en) Process and apparatus for forming tubular films and the like
US3632265A (en) Flattening and take-away device for blown tubing of plastics material
JPH01200933A (ja) 樹脂フィルムの端部処理方法及び装置
US2779053A (en) Method and apparatus for producing oriented plastic films
CN209158731U (zh) 一种用于生产薄膜的压延机
US3742105A (en) Method for producing a seamless tubing
US2799896A (en) Sheet extrusion apparatus
CN114654711A (zh) 一种复合膜生产装置
CN206307802U (zh) 一种淋膜机的储布架
CN110065225B (zh) 塑料薄膜吹塑设备
CN210415513U (zh) 一种七层薄膜吹塑机
CN211279643U (zh) 一种用于尼龙袋的挤出吹膜装置
KR102162519B1 (ko) 폴리우레탄 필름 제조 장치
CN114407317A (zh) 一种淀粉基生物可降解环保流延膜的生产工艺及生产装置
CN203460527U (zh) 一种无胎类防水卷材生产装置
US4231831A (en) Apparatus and method for forming an elongated structural element from plastic material and for applying a decorative film thereto
CN110406085A (zh) 一种七层薄膜吹塑机
JPH0152171B2 (zh)
CN220763470U (zh) 一种薄膜材料生产加工装置
CN219525905U (zh) 一种薄膜机用薄膜收卷器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22863624

Country of ref document: EP

Kind code of ref document: A1