Proton exchange membrane two-way stretching equipment capable of preventing edge deformation

Abstract

The utility model discloses proton exchange membrane two-way stretching equipment capable of preventing edge deformation. The proton exchange membrane two-way stretching equipment comprises a bracket, a transverse stretching assembly and a longitudinal stretching assembly, the transverse stretching assembly comprises a clamping seat clamped in the support, a fixed roller and a movable roller which are arranged on the clamping seat, a first air cylinder arranged on the side wall of the support and a pressing rod connected with the movable roller; the longitudinal stretching assembly comprises a rotating shaft clamped in the support, a rotating disc, a stretching push plate, a winding disc clamped on the stretching push plate, a pressing strip arranged on the winding disc, a driving motor connected with the rotating shaft and a second air cylinder connected with the stretching push plate, wherein the rotating disc and the stretching push plate are clamped on the rotating shaft. According to the utility model, the proton exchange membrane is fixed by utilizing the cylindrical fixed roller and the movable roller, so that the number of fixed points in the stretching process of the proton exchange membrane is increased, each area on the membrane is stressed more uniformly in the stretching process, and the stretching quality of the proton exchange membrane is improved; the problem of material waste caused by edge deformation in the stretching process of the proton exchange membrane is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of thin film production equipment, and particularly relates to a proton exchange membrane biaxial stretching device for preventing edge deformation. Background Art

[0002] The proton exchange membrane is the core component of a proton exchange membrane fuel cell. It not only plays a barrier role but also is responsible for conducting protons. The performance of the proton exchange membrane plays a decisive role in the performance of the fuel cell, directly affecting the service life and efficiency of the battery. The biaxial stretching process is a very important part in the industrial production of proton exchange membranes. It not only thins the cast film into a thin film but also can adjust the orientation and crystallization state of the thin film.

[0003] However, when the clamp of the existing proton exchange membrane biaxial stretching device is stretching, due to its fewer fixed points, the deformation of the thin film is uneven, the quality of the stretched thin film is unstable, and the amount of edge deformation of the thin film is large, resulting in a larger size of the subsequent cutting waste of the thin film, which not only causes waste of resources but also increases the cost input of users and production enterprises. Summary of the Utility Model

[0004] In view of the above existing technical problems, the utility model provides a proton exchange membrane biaxial stretching device for preventing edge deformation.

[0005] The technical solution of the utility model is as follows: a proton exchange membrane biaxial stretching device for preventing edge deformation, comprising a bracket, a transverse stretching assembly and a longitudinal stretching assembly; the bracket includes a rectangular frame body, a base and supporting side plates;

[0006] The transverse stretching assembly includes two clamping seats slidably clamped inside the rectangular frame body, a fixed roller and a movable roller respectively arranged inside the two clamping seats, a first cylinder arranged on both sides of the rectangular frame body and respectively connected to the two clamping seats, and a pressing rod respectively arranged on the two clamping seats and respectively connected to the two movable rollers;

[0007] The longitudinal stretching assembly includes a rotating shaft rotatably clamped between two supporting side plates, two turntables slidably clamped on the rotating shaft, a stretching push plate slidably clamped on the side of the two turntables away from each other, a winding disc respectively rotatably clamped on the two stretching push plates, a pressing strip wound on the winding disc, a driving motor connected to the rotating shaft, and a second cylinder respectively connected to the two stretching push plates.

[0008] Further, a hot air blower is arranged on the base; a hot air nozzle connected to the hot air blower is arranged between the two supporting side plates;

[0009] Description: During the stretching process of the proton exchange membrane, a hot air blower is used to blow the hot air generated by the hot air blower onto the surface of the proton exchange membrane, avoiding the temperature drop during the stretching process of the proton exchange membrane, which affects its ductility and improves the stretching effect of the proton exchange membrane.

[0010] Further, a threaded seat is rotatably clamped on the pressing rod, and a threaded rod rotatably clamped with the clamping seat is threadedly connected to the threaded seat;

[0011] Description: By using the connection between the threaded rod and the threaded seat, it is convenient to fix the pressing rod and improves the reliability of the fixing effect of the fixed roller and the movable roller on the proton exchange membrane.

[0012] Further, anti-slip patterns are provided on the surfaces of both the fixed roller and the movable roller;

[0013] Description: By providing anti-slip patterns on the fixed roller and the movable roller, it is beneficial to improve the fixing effect of the fixed roller and the movable roller on the proton exchange membrane.

[0014] Further, a pressing groove is provided on one side of the pressing strip close to the winding disc, and a pressing rib is provided on the side of the pressing strip away from the winding disc;

[0015] Description: When the pressing strip is wound around the turntable, the end of the proton exchange membrane is further pressed and fixed by the cooperation of the pressing rib and the pressing groove to prevent the edge from deforming during the stretching process of the proton exchange membrane.

[0016] The usage method of the present utility model is as follows:

[0017] During use, both ends of the preheated proton exchange membrane sheet are respectively placed between two groups of fixed rollers and movable rollers. Rotate the threaded rod so that the pressing rod rotates along the clamping seat under the action of the threaded rod. At this time, the triangular pressing plate pushes the movable roller close to the fixed roller through the slider to fix the proton exchange membrane sheet; then start the first cylinder, and use the first cylinder rod to push the pushing seats on the two clamping seats away from each other to horizontally stretch the proton exchange membrane sheet;

[0018] Rotate the horizontally stretched proton exchange membrane sheet by 90 degrees, and then place the end of the proton exchange membrane sheet at the connection of the turntable and the pressing strip; start the driving motor, and use the driving motor to drive the turntable to rotate. At this time, the proton exchange membrane sheet and the pressing strip are wound around the turntable at intervals; when the winding of the proton exchange membrane sheet is completed, use the fixing bolt to fix the winding disc to the stretching push plate; finally, start the second cylinder, and use the second cylinder rod to push the two stretching push plates away from each other to longitudinally stretch the proton exchange membrane sheet.

[0019] Compared with the prior art, the beneficial effects of the present utility model are reflected in the following aspects:

[0020] First, the utility model uses cylindrical fixed rollers and movable rollers to fix the proton exchange membrane, increasing the fixed points during the transverse stretching of the proton exchange membrane, making the forces on each area more uniform during the transverse stretching of the proton exchange membrane, and improving the stretching quality of the proton exchange membrane;

[0021] Second, the utility model uses the cooperation of the pressing strip and the turntable to wind and fix the proton exchange membrane, so that the wound proton exchange membranes are separated by the pressing strip, avoiding the mutual interference between layers during the longitudinal stretching of the proton exchange membrane, and thus avoiding the material waste problem caused by the edge deformation during the stretching of the proton exchange membrane;

[0022] Third, during the use of the utility model, the hot air generated by the hot air blower is blown onto the surface of the proton exchange membrane by the hot air nozzle, avoiding the decrease in temperature during the stretching of the proton exchange membrane and affecting its ductility, and improving the stretching effect of the proton exchange membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the longitudinal sectional view of the utility model;

[0024] Figure 2 is the front view of the utility model;

[0025] Figure 3 is the top view of the utility model;

[0026] Figure 4 is the connection schematic diagram of the fixed roller, movable roller and clamping seat of the utility model;

[0027] Figure 5 is the utility model Figure 1 The partial enlarged schematic diagram at A in;

[0028] Figure 6 is the connection schematic diagram of the longitudinal stretching component and the support side plate of the utility model;

[0029] Figure 7 is the structural schematic diagram of the pressing strip of the utility model;

[0030] Among them, 1 - bracket, 10 - rectangular box body, 11 - base, 12 - supporting side plate, 2 - horizontal stretching component, 20 - clamping seat, 200 - pushing seat, 21 - fixed roller, 22 - movable roller, 220 - slider, 23 - first cylinder, 230 - first cylinder rod, 24 - pressing rod, 240 - triangular pressing plate, 241 - threaded seat, 25 - threaded rod, 3 - vertical stretching component, 30 - rotating shaft, 31 - turntable, 32 - stretching push plate, 320 - sliding rod, 33 - winding disc, 34 - pressing strip, 340 - pressing groove, 341 - pressing rib, 35 - driving motor, 36 - second cylinder, 360 - second cylinder rod, 4 - hot air blower, 40 - hot air nozzle. Detailed implementation manners

[0031] Embodiment 1

[0032] As Figure 1 A proton exchange membrane bi - axial stretching device for preventing edge deformation as shown in the figure, including a bracket 1, a horizontal stretching component 2 arranged at the inner top of the bracket 1, and a vertical stretching component 3 arranged inside the bracket 1; the bracket 1 includes a rectangular box body 10, a base 11 arranged below the rectangular box body 10, and a supporting side plate 12 arranged between the rectangular box body 10 and the base 11;

[0033] As Figure 1 、 3 、4, 5 shown, the horizontal stretching component 2 includes two clamping seats 20 slidably clamped inside the rectangular box body 10, a fixed roller 21 and a movable roller 22 respectively arranged inside the two clamping seats 20, a first cylinder 23 arranged on both sides of the rectangular box body 10 and respectively connected to the two clamping seats 20, and a pressing rod 24 respectively arranged on the two clamping seats 20 and respectively connected to the two movable rollers 22; both ends of the two clamping seats 20 are provided with a pushing seat 200 penetrating through the rectangular box body 10 and slidably clamped with the rectangular box body 10; the movable roller 22 is slidably clamped with the clamping seat 20 through a slider 220, both ends of the pressing rod 24 are rotatably clamped with the clamping seat 20, and triangular pressing plates 240 slidably clamped at both ends of the pressing rod 24 are respectively and movably clamped with the two sliders 220 in one - to - one correspondence; both ends of the first cylinder 23 are provided with a first cylinder rod 230 respectively connected to the two pushing seats 200 on the same side in one - to - one correspondence;

[0034] As Figure 1 、 2As shown in FIGS. 6, the longitudinal stretching assembly 3 includes a rotating shaft 30 rotatably clamped between two supporting side plates 12, two turntables 31 slidably clamped on the rotating shaft 30, stretching push plates 32 respectively slidably clamped on the sides of the two turntables 31 away from each other through sliding rods 320, winding discs 33 respectively rotatably clamped on the two stretching push plates 32 and corresponding to the two turntables 31 one by one, pressing strips 34 wound around the winding discs 33 and connected to the corresponding turntables 31, a driving motor 35 arranged on the outer wall of the supporting side plate 12 and connected to the rotating shaft 30, and a second air cylinder 36 arranged on the base 11 and connected to the two stretching push plates 32 respectively; the two turntables 31 are respectively rotatably clamped with the corresponding stretching push plates 32; fixing bolts capable of clamping with the corresponding winding discs 33 are threadedly connected to both of the two stretching push plates 32; two second air cylinder rods 360 respectively corresponding to the two stretching push plates 32 are arranged at both ends of the second air cylinder 36.

[0035] Embodiment 2

[0036] The difference between this embodiment and Embodiment 1 is as follows:

[0037] As Figure 1 shown, a hot air blower 4 is arranged on the base 11; a hot air nozzle 40 connected to the hot air blower 4 is arranged between the two supporting side plates 12;

[0038] During the stretching process of the proton exchange membrane, the hot air generated by the hot air blower 4 is blown onto the surface of the proton exchange membrane by the hot air nozzle 40, so as to prevent the temperature from dropping during the stretching process of the proton exchange membrane and affecting its ductility, and improve the stretching effect of the proton exchange membrane.

[0039] Embodiment 3

[0040] The difference between this embodiment and Embodiment 2 is as follows:

[0041] As Figure 2 、 4 shown, a threaded seat 241 is rotatably clamped on the pressing rod 24, and a threaded rod 25 rotatably clamped with the clamping seat 20 is threadedly connected to the threaded seat 241;

[0042] By the connection of the threaded rod 25 and the threaded seat 241, it is convenient to fix the pressing rod 24, and the reliability of the fixing effect of the fixing roller 21 and the movable roller 22 on the proton exchange membrane is improved.

[0043] Embodiment 4

[0044] The difference between this embodiment and Embodiment 3 is as follows:

[0045] As Figure 1 shown, anti-slip patterns are arranged on the surfaces of the fixing roller 21 and the movable roller 22;

[0046] By providing anti-slip patterns on the fixed roller 21 and the movable roller 22, it is beneficial to improve the fixing effect of the fixed roller 21 and the movable roller 22 on the proton exchange membrane.

[0047] Example 5

[0048] The difference between this example and Example 4 is as follows:

[0049] As Figure 7 shown, a pressing groove 340 is provided on one side of the pressing strip 34 close to the winding disc 33, and a pressing rib 341 is provided on the side of the pressing strip 34 away from the winding disc 33;

[0050] When the pressing strip 34 is wound around the turntable 31, the end of the proton exchange membrane is further pressed and fixed by the cooperation of the pressing rib 341 and the pressing groove 340 to prevent the edge from deforming during the stretching of the proton exchange membrane.

[0051] It should be noted that the first cylinder 23, the drive motor 35, the second cylinder 36, the hot air blower 4 and the hot air nozzle 40 used in the present utility model all adopt existing technologies and are not specially limited herein. Corresponding products can be selected according to actual needs.

Claims

1. A proton exchange membrane biaxial stretching device for preventing edge deformation, characterized in that: It comprises a support (1), a transverse stretching assembly (2) and a longitudinal stretching assembly (3); the support (1) comprises a rectangular frame (10), a base (11) and a supporting side plate (12); The transverse stretching assembly (2) comprises two clamping seats (20) slidably clamped inside the rectangular frame (10), a fixed roller (21) and a movable roller (22) respectively arranged inside the two clamping seats (20), a first cylinder (23) arranged on both sides of the rectangular frame (10) and respectively connected to the two clamping seats (20), and a pressing rod (24) respectively arranged on the two clamping seats (20) and respectively connected to the two movable rollers (22); The longitudinal stretching assembly (3) comprises a rotating shaft (30) rotatably clamped between two supporting side plates (12), two rotating disks (31) slidably clamped on the rotating shaft (30), a stretching push plate (32) slidably clamped on the side of the two rotating disks (31) away from each other, a winding disk (33) rotatably clamped on the two stretching push plates (32), a pressure strip (34) wound around the winding disk (33), a driving motor (35) connected to the rotating shaft (30), and a second cylinder (36) respectively connected to the two stretching push plates (32).

2. The proton exchange membrane biaxial stretching device for preventing edge deformation according to claim 1, characterized in that: A hot air blower (4) is arranged on the base (11); and a hot air nozzle (40) connected to the hot air blower (4) is arranged between the two supporting side plates (12).

3. The proton exchange membrane biaxial stretching device for preventing edge deformation according to claim 1, characterized in that: A threaded seat (241) is rotatably clamped on the clamping rod (24), and a threaded rod (25) rotatably clamped on the clamping seat (20) is threadedly connected on the threaded seat (241).

4. The proton exchange membrane biaxial stretching device for preventing edge deformation according to claim 1, characterized in that: The surfaces of the fixed roller (21) and the movable roller (22) are both provided with anti-slip grooves.

5. The proton exchange membrane biaxial stretching device for preventing edge deformation according to claim 1, characterized in that: A pressing groove (340) is provided on the side of the pressing strip (34) close to the winding disk (33), and a pressing convex strip (341) is provided on the side of the pressing strip (34) away from the winding disk (33).

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