阅读说明：本技术 一种双向拉伸聚酰亚胺薄膜装置及其使用方法 (Biaxial stretching polyimide film device and using method thereof ) 是由 翁梦蔓 简凌锋 梁俊锴 闵永刚 刘屹东 于 2021-01-05 设计创作，主要内容包括：本申请实施例公开了一种双向拉伸聚酰亚胺薄膜装置及其使用方法,包括：拉伸组件和用于固定聚酰胺酸薄膜四角的固定组件；拉伸组件包括拉杆、主推杆和副推杆；拉杆上套设有第一固定环；第一固定环与拉杆滑动连接,且第一固定环沿周向均匀铰接有多个主推杆；拉杆上固定有第二固定环；第二固定环位于第一固定环的下方；主推杆中部铰接有副推杆；副推杆与第二固定环铰接；主推杆底端设置有挂钩；每个主推杆均通过挂钩可拆卸连接有一个固定组件。本发明操作简便,且能够提高膜材的力学性能及结晶性,有利于扩大膜材的应用范围。(The embodiment of the application discloses a biaxial stretching polyimide film device and a using method thereof, wherein the biaxial stretching polyimide film device comprises: the stretching assembly and the fixing assembly are used for fixing four corners of the polyamide acid film; the stretching assembly comprises a pull rod, a main push rod and an auxiliary push rod; a first fixing ring is sleeved on the pull rod; the first fixing ring is connected with the pull rod in a sliding manner, and a plurality of main push rods are uniformly hinged to the first fixing ring along the circumferential direction; a second fixing ring is fixed on the pull rod; the second fixing ring is positioned below the first fixing ring; the middle part of the main push rod is hinged with an auxiliary push rod; the auxiliary push rod is hinged with the second fixing ring; the bottom end of the main push rod is provided with a hook; every main push rod all is connected with a fixed subassembly through the couple is dismantled. The method is simple and convenient to operate, can improve the mechanical property and crystallinity of the membrane material, and is beneficial to expanding the application range of the membrane material.)

1. A biaxially stretched polyimide film apparatus, comprising: the stretching assembly and the fixing assembly are used for fixing four corners of the polyamide acid film;

the stretching assembly comprises a pull rod, a main push rod and an auxiliary push rod;

a first fixing ring is sleeved on the pull rod;

the first fixing ring is connected with the pull rod in a sliding mode, and a plurality of main push rods are uniformly hinged to the first fixing ring along the circumferential direction;

a second fixing ring is fixed on the pull rod;

the second fixing ring is positioned below the first fixing ring;

the middle part of the main push rod is hinged with the auxiliary push rod;

the auxiliary push rod is hinged with the second fixing ring;

the bottom end of the main push rod is provided with a hook;

every the main push rod all through the couple is detachable to be connected with one fixed subassembly.

2. The biaxially stretched polyimide film apparatus of claim 1, wherein the holding assembly comprises an upper clamping plate and a lower clamping plate;

the two ends of the upper clamping plate and the lower clamping plate are connected through nuts and screws;

and a hanging ring is arranged at the top of the upper clamping plate.

3. The biaxially oriented polyimide film apparatus of claim 1, wherein the tie bar is provided with a snap;

the first fixing ring is correspondingly provided with a clamping groove used for limiting in a snap fit mode.

4. The biaxially stretched polyimide film apparatus of claim 3, wherein the snap is located between the first retaining ring and the second retaining ring.

5. The biaxially oriented polyimide film apparatus of claim 1, wherein the number of the main pushers is equal to the number of the sub pushers, and the main pushers and the sub pushers correspond to each other.

6. The biaxially stretched polyimide film apparatus of claim 5, wherein the number of the main pushrods is four;

the four main push rods are uniformly distributed around the first fixing ring;

the number of the auxiliary push rods is four;

and the four auxiliary push rods are uniformly distributed around the second fixing ring.

7. A method of using the biaxially oriented polyimide film apparatus of any of claims 1 to 6, wherein the method comprises the steps of:

step 1: respectively fixing four corners of a polyamic acid film on the fixing component, and then connecting the fixing component with the hook on the stretching component;

step 2: the pull rod is pulled upwards, the pull rod drives the auxiliary push rod to move upwards, and then the main push rod is expanded outwards, so that the polyamide acid film is gradually stretched in two directions;

and step 3: and when the polyamic acid film is stretched to a proper size, taking down the fixing component and the polyamic acid film from the hook, and placing the fixing component and the polyamic acid film into a high-temperature oven for further heating to imidize the polyamic acid film, thereby obtaining the biaxially oriented polyimide film.

Technical Field

The application relates to the technical field of film stretching, in particular to a biaxially oriented polyimide film device and a using method thereof.

Background

Polyimide is one of engineering plastics, and is widely applied to the fields of aviation, aerospace, microelectronics and the like due to excellent comprehensive performance. Compared with Kapton commercial films, most polyimide films still have a large gap in mechanical properties. The invention provides a biaxial stretching polyimide film device and a using method thereof, wherein the device comprises a film body, a film base, a film stretching device and a film stretching device.

Disclosure of Invention

The embodiment of the application provides a biaxial stretching polyimide film device and a using method thereof, so that the operation is simple and convenient, the mechanical property and crystallinity of a film material can be improved, and the application range of the film material is favorably expanded.

The present application provides in a first aspect a biaxially oriented polyimide film device comprising: the stretching assembly and the fixing assembly are used for fixing four corners of the polyamide acid film;

the stretching assembly comprises a pull rod, a main push rod and an auxiliary push rod;

a first fixing ring is sleeved on the pull rod;

the first fixing ring is connected with the pull rod in a sliding mode, and a plurality of main push rods are uniformly hinged to the first fixing ring along the circumferential direction;

a second fixing ring is fixed on the pull rod;

the second fixing ring is positioned below the first fixing ring;

the middle part of the main push rod is hinged with the auxiliary push rod;

the auxiliary push rod is hinged with the second fixing ring;

the bottom end of the main push rod is provided with a hook;

every the main push rod all through the couple is detachable to be connected with one fixed subassembly.

Optionally, the fixation assembly comprises an upper clamp plate and a lower clamp plate;

the two ends of the upper clamping plate and the lower clamping plate are connected through nuts and screws;

and a hanging ring is arranged at the top of the upper clamping plate.

Optionally, a spring buckle is arranged on the pull rod;

the first fixing ring is correspondingly provided with a clamping groove used for limiting in a snap fit mode.

Optionally, the snap is located between the first and second securing rings.

Optionally, the number of the main push rods is equal to that of the auxiliary push rods, and the main push rods and the auxiliary push rods correspond to each other one by one.

Optionally, the number of the main push rods is four;

the four main push rods are uniformly distributed around the first fixing ring;

the number of the auxiliary push rods is four;

and the four auxiliary push rods are uniformly distributed around the second fixing ring.

The second aspect of the present application provides a method for using the above biaxially oriented polyimide film device, which includes the following steps:

step 1: respectively fixing four corners of a polyamic acid film on the fixing component, and then connecting the fixing component with the hook on the stretching component;

step 2: the pull rod is pulled upwards, the pull rod drives the auxiliary push rod to move upwards, and then the main push rod is expanded outwards, so that the polyamide acid film is gradually stretched in two directions;

and step 3: and when the polyamic acid film is stretched to a proper size, taking down the fixing component and the polyamic acid film from the hook, and placing the fixing component and the polyamic acid film into a high-temperature oven for further heating to imidize the polyamic acid film, thereby obtaining the biaxially oriented polyimide film.

According to the technical scheme, the embodiment of the application has the following advantages: the stretching assembly comprises a pull rod, a main push rod and an auxiliary push rod, a first fixing ring is sleeved on the pull rod and is in sliding connection with the pull rod, and a plurality of main push rods are uniformly hinged to the first fixing ring along the circumferential direction; the fixed ring of second is fixed with on the pull rod, and main push rod middle part articulates there is vice push rod, and vice push rod is articulated with the fixed ring of second, and the main push rod bottom is provided with the couple, and every main push rod all can dismantle through the couple and be connected with a fixed subassembly. The device fixes the four corners of the polyamic acid film through the fixing component, then pulls the pull rod upwards, the pull rod drives the auxiliary push rod to move upwards, and then the main push rod is outwards propped, so that the polyamic acid film gradually realizes bidirectional stretching, the operation is simple and convenient, the mechanical property and the crystallinity of the film material can be improved, and the application range of the film material can be favorably expanded.

Drawings

FIG. 1 is a schematic structural view of a stretching assembly in an embodiment of the present application;

FIG. 2 is a top view of a tension assembly in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a fixing assembly according to an embodiment of the present application;

wherein the reference numerals are:

1-upper splint, 2-lower splint, 3-hanging ring, 4-nut, 5-screw, 6-pull rod, 7-main push rod, 8-auxiliary push rod, 9-first fixing ring, 10-second fixing ring, 11-hook and 12-elastic buckle.

Detailed Description

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

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The present application provides an embodiment of a biaxially oriented polyimide film device, and particularly refers to fig. 1.

The biaxially oriented polyimide film device in this embodiment includes: the stretching assembly comprises a pull rod 6, a main push rod 7 and an auxiliary push rod 8, a first fixing ring 9 is sleeved on the pull rod 6, the first fixing ring 9 is connected with the pull rod 6 in a sliding mode, and the first fixing ring 9 is evenly hinged with a plurality of main push rods 7 along the circumferential direction; the fixed ring 10 of second is fixed with on the pull rod 6, and the fixed ring 10 of second is located the below of the fixed ring 9 of first, and 7 middle parts of main push rod articulate there is vice push rod 8, and vice push rod 8 is articulated with the fixed ring 10 of second, and 7 bottoms of main push rod are provided with couple 11, and every main push rod 7 all can dismantle through couple 11 and be connected with a fixed subassembly.

It should be noted that: the four corners of polyamide acid film are fixed through the fixed subassembly to this device, then pull rod 6 is upwards pulled, drives vice push rod 8 by pull rod 6 and upwards moves, and then outwards struts main push rod 7, makes polyamide acid film progressively realize biaxial tension, and easy and simple to handle, and can improve the mechanical properties and the crystallinity of membrane material, be favorable to expanding the range of application of membrane material.

The above is a first embodiment of a biaxially oriented polyimide film apparatus provided in the present application, and the following is a second embodiment of a biaxially oriented polyimide film apparatus provided in the present application, specifically referring to fig. 1 to fig. 3.

The biaxially oriented polyimide film device in this embodiment includes: the stretching assembly comprises a pull rod 6, a main push rod 7 and an auxiliary push rod 8, a first fixing ring 9 is sleeved on the pull rod 6, the first fixing ring 9 is connected with the pull rod 6 in a sliding mode, and the first fixing ring 9 is evenly hinged with a plurality of main push rods 7 along the circumferential direction; the fixed ring 10 of second is fixed with on the pull rod 6, and the fixed ring 10 of second is located the below of the fixed ring 9 of first, and 7 middle parts of main push rod articulate there is vice push rod 8, and vice push rod 8 is articulated with the fixed ring 10 of second, and 7 bottoms of main push rod are provided with couple 11, and every main push rod 7 all can dismantle through couple 11 and be connected with a fixed subassembly.

As shown in figure 3, the fixing assembly comprises an upper clamping plate 1 and a lower clamping plate 2, two ends of the upper clamping plate 1 and two ends of the lower clamping plate 2 are connected through nuts 4 and screws 5, and a hanging ring 3 is arranged at the top of the upper clamping plate 1. Specifically, the one end of screw rod 5 is passed punch holder 1 and with 2 fixed connection of lower plate, punch holder 1 can be followed screw rod 5 and slided from top to bottom, and the upper end threaded connection of screw rod 5 has nut 4, can adjust the distance between punch holder 1 and the lower plate 2 through swivel nut 4, and then realizes pressing from both sides tightly and the function of unclamping.

The pull rod 6 is provided with an elastic buckle 12, and the first fixing ring 9 is correspondingly provided with a clamping groove used for being matched with the elastic buckle 12 for limiting; the snap 12 is located between the first fixing ring 9 and the second fixing ring 10. It can be understood that, by arranging the elastic buckle 12 and the clamping groove, the limitation can be performed when the biaxial stretching reaches the maximum, that is, when the biaxial stretching reaches the maximum, the elastic buckle 12 is clamped with the clamping groove.

The number of the main push rods 7 is equal to that of the auxiliary push rods 8, and the main push rods and the auxiliary push rods correspond to each other one by one. Specifically, the number of the main push rods 7 can be four, and the four main push rods 7 are uniformly distributed around the first fixing ring 9; the number of the auxiliary push rods 8 can be four, and the four auxiliary push rods 8 are uniformly distributed around the second fixing ring 10.

The application also provides a using method of the biaxial stretching polyimide film device, which specifically comprises the following steps:

step 1: cutting the prepared polyamic acid film into regular rectangles, clamping and fixing the peripheries of the polyamic acid film by using fixing components respectively, ensuring the polyamic acid film to be clamped tightly by adjusting nuts 4 of the fixing components, and connecting the fixing components with hooks 11 on a stretching component;

step 2: the pull rod 6 is pulled upwards, the pull rod 6 drives the auxiliary push rod 8 to move upwards, and then the main push rod 7 is expanded outwards, so that the polyamide acid film is gradually stretched in two directions;

and step 3: when the polyamic acid film is stretched to a proper size, the fixing component and the polyamic acid film are taken down from the hook 11, and the fixed component and the polyamic acid film are placed into a high-temperature oven for further heating, so that the polyamic acid film is imidized, and then the biaxially oriented polyimide film is obtained.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.