Polymeric membrane stretching detection device

Abstract

The utility model discloses a polymeric membrane stretching detection device, relates to the technical field of polymeric membrane stretching detection, and aims to solve the problems that when an existing polymeric membrane is subjected to stretching detection, a fixing structure is exposed outside a detection machine body, the polymeric membrane is easily touched by mistake, the protection performance is poor, and when the polymeric membrane is longer, the polymeric membrane cannot be damaged. And after fixation, an exposed part is easy to contact with a stretching area, so that the stretching result is inaccurate. An inner groove is formed in the front surface of the stretcher body, the inner groove and the stretcher body are of an integrated structure, a stretching frame is arranged at the front end of the inner groove, a first air cylinder is arranged at the front end of the stretching frame, a second air cylinder is arranged below the first air cylinder, and a fixing plate is arranged at one end of the first air cylinder and one end of the second air cylinder. A positioning plate is arranged in the opposite direction of the fixing plate, a winding shaft is arranged at one end of the positioning plate, and an electric push rod is arranged in the inner groove.

Description

Technical Field

[0001] The utility model relates to the technical field of polymer film stretching detection, in particular to a polymer film stretching detection device. Background Technique

[0002] The film made of organic polymer is developed with the development of the petroleum industry and technology. The application fields of polymer films have been continuously expanded, from the initial packaging film to intelligent polymer films, polymer functional films, etc. During production, stretching detection is carried out on polymer films.

[0003] For example, the Chinese authorized patent with the publication number of CN217331901U (a packaging film stretching detection device): includes a base, a stretching component and two clamping components. One of the two clamping components is set as a fixed clamping component, and the other is set as a movable clamping component; the clamping component includes a connecting seat, a cylinder seat and a cylinder. The connecting seat of the fixed clamping component is used to connect the base, and the connecting seat of the movable clamping component is used to connect the stretching component; the cylinder seat is a block structure as a whole. The cylinder seat includes a first seat plate and a second seat plate. A third seat plate is integrally connected between the first seat plate and the second seat plate. The connecting seat is fixedly connected to the cylinder seat, the cylinder is fixedly connected to the first seat plate, the piston rod of the cylinder passes through the first seat plate, and a clamping plate is fixedly arranged on the piston rod of the cylinder. The clamping plate is located between the first seat plate and the second seat plate, and the clamping plate is used to jointly clamp the packaging film sample with the second seat plate. This application can reduce the problem of uneven clamping force along the width direction at the clamped part of the packaging film sample.

[0004] However, when the existing polymer films are subjected to stretching detection, the fixing structures are all exposed outside the detection body, which is easy to accidentally touch the polymer films, and the protection performance is poor. Moreover, when the polymer films are relatively long, there are exposed parts after being fixed, which are easy to contact the stretching area, resulting in inaccurate stretching results. Therefore, it does not meet the existing requirements. For this reason, we propose a polymer film stretching detection device. Content of the Utility Model

[0005] The purpose of the utility model is to provide a polymer film stretching detection device to solve the problems in the above background technology that when the existing polymer films are subjected to stretching detection, the fixing structures are all exposed outside the detection body, which is easy to accidentally touch the polymer films, the protection performance is poor, and when the polymer films are relatively long, there are exposed parts after being fixed, which are easy to contact the stretching area, resulting in inaccurate stretching results.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A polymer film stretching detection device, comprising: a stretching machine body, an inner groove is provided on the front surface of the stretching machine body, and the inner groove is an integral structure with the stretching machine body. A stretching frame is provided at the front end of the inner groove, a first cylinder is provided at the front end of the stretching frame, a second cylinder is provided below the first cylinder, a fixing plate is provided at one end of the first cylinder and the second cylinder, a positioning plate is provided opposite to the fixing plate, a winding shaft is provided at one end of the positioning plate, and shaft brackets are provided at both ends of the winding shaft, and one end of the shaft bracket is welded and fixed to the positioning plate. The winding shaft is rotatably connected to the shaft bracket. An electric push rod is provided inside the inner groove, a push rod installation groove is provided on the inner wall of the inner groove, and the electric push rod is inserted into the push rod installation groove. Both ends of the electric push rod are fixed to the stretching machine body and the stretching frame respectively through fixing disks externally connected with bolts.

[0007] Preferably, an installation cavity is provided inside the stretching frame, and one side of the installation cavity is in an open form. A ball screw slide rail is provided inside the installation cavity. The ball screw slide rail is composed of a screw rod, a servo motor, and a screw rod moving seat. A moving frame is provided on one side of the screw rod moving seat, and the screw rod moving seat is connected to the stretching frame through the moving frame. A moving groove for the up and down movement of the moving frame is provided on the front surface of the stretching frame, and the moving groove communicates with the installation cavity.

[0008] Preferably, a protective cover plate for protecting the installation cavity is provided at the opening of the installation cavity, and the corners of the protective cover plate are threadedly fixed to the stretching frame through externally connected bolts.

[0009] Preferably, a connecting plate is welded on the rear surface of the positioning plate, and the other end of the connecting plate is welded to the surface of the cylinder.

[0010] Preferably, a guiding groove is provided on the lower surface inside the inner groove, and sliding wheels are provided on both sides of the lower end of the stretching frame, and the sliding wheels slide along the guiding groove.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] 1. In the present utility model, through the inner groove on the front surface of the stretching machine body, the stretching frame enters and exits the inner groove through the electric push rod. When fixing the polymer film, the extra polymer film is wound and fixed by the winding shaft, avoiding the phenomenon that the scattered polymer film contacts the stretching part of the polymer film and causes inaccurate stretching results, improving the protection performance and accuracy. The stretching frame is driven by the electric push rod to move into the inner groove. When all move into the inner groove, the polymer film is then inside the inner groove and does not protrude outside the front surface of the stretching machine body, thus protecting the polymer film from two aspects, avoiding the phenomenon that inaccurate stretching detection is caused by accidental collision, and improving the protection performance.

[0013] 2. Slide wheels are provided on both sides of the lower end of the stretching frame, and guiding grooves are provided on both sides of the inner surface of the inner groove. The slide wheels slide along the guiding grooves, providing a supporting effect on the stretching frame, avoiding damage to the electric push rod caused by the stretching frame being bent under force, and also preventing the stretching frame from shaking when moving, improving safety and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the right side view of the overall structure of the present utility model;

[0016] Figure 3 It is a schematic diagram of the right side view of the inner part of the stretching frame of the present utility model;

[0017] Figure 4 It is a schematic diagram of the front view of the inner groove of the present utility model;

[0018] In the figure: 1. Stretching machine body; 2. Stretching frame; 3. Inner groove; 4. Moving groove; 5. Electric push rod; 6. First cylinder; 7. Second cylinder; 8. Fixed plate; 9. Positioning plate; 10. Winding shaft; 11. Connecting plate; 12. Guiding groove; 13. Slide wheel; 14. Shaft frame; 15. Protective cover plate; 16. Installation cavity; 17. Ball screw slide rail; 18. Screw moving seat; 19. Moving frame; 20. Push rod installation groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Please refer to Figures 1-4, an embodiment provided by the present utility model: a stretching detection device for a polymer film, comprising: a stretching machine body 1, an inner groove 3 is provided on the front surface of the stretching machine body 1, and the inner groove 3 is an integral structure with the stretching machine body 1. A stretching frame 2 is provided at the front end of the inner groove 3, a first cylinder 6 is provided at the front end of the stretching frame 2, a second cylinder 7 is provided below the first cylinder 6, one ends of the first cylinder 6 and the second cylinder 7 are provided with a fixing plate 8, a positioning plate 9 is arranged opposite to the fixing plate 8, a connecting plate 11 is welded on the rear surface of the positioning plate 9, and the other end of the connecting plate 11 is welded and fixed to the surface of the cylinder. A winding shaft 10 is provided at one end of the positioning plate 9, shaft brackets 14 are provided at both ends of the winding shaft 10, and one end of the shaft bracket 14 is welded and fixed to the positioning plate 9. The winding shaft 10 is rotatably connected to the shaft bracket 14. When fixing the polymer film, the excess polymer film is wound and fixed by the winding shaft 10, avoiding the phenomenon that the scattered polymer film contacts the stretched part of the polymer film and causes inaccurate stretching results, improving the protection performance and accuracy. An electric push rod 5 is arranged inside the inner groove 3, a push rod installation groove 20 is arranged on the inner wall of the inner groove 3, and the electric push rod 5 is inserted into the push rod installation groove 20. Both ends of the electric push rod 5 are fixed to the stretching machine body 1 and the stretching frame 2 respectively through fixing disks and external bolts.

[0021] The electric push rod 5 is used to drive the stretching frame 2 to move into the inner groove 3. When all of it moves into the inner groove 3, at this time, the polymer film is also inside the inner groove 3 and does not protrude outside the front surface of the stretching machine body 1, thus protecting the polymer film from two aspects, avoiding the phenomenon that inaccurate stretching detection is caused by accidental collision, and improving the protection performance.

[0022] Please refer to Figures 1-3 , an installation cavity 16 is arranged inside the stretching frame 2, and one side of the installation cavity 16 is in an open form. A ball screw slide rail 17 is arranged inside the installation cavity 16. The ball screw slide rail 17 is composed of a screw, a servo motor and a screw moving seat 18. A moving frame 19 is arranged on one side of the screw moving seat 18, and the screw moving seat 18 is connected to the stretching frame 2 through the moving frame 19. A moving groove 4 for the up and down movement of the moving frame 19 is arranged on the front surface of the stretching frame 2, and the moving groove 4 is communicated with the installation cavity 16. The ball screw slide rail 17 is used to drive the moving frame 19 to move, thereby driving the first cylinder 6 to move upward, and the second cylinder 7 remains stationary, so as to stretch the polymer film and perform stretching detection.

[0023] Please refer to Figure 2 , 3 , a protective cover plate 15 for protecting the installation cavity 16 is arranged at the opening of the installation cavity 16, and the corners of the protective cover plate 15 are fixed to the stretching frame 2 by external bolts in a threaded manner to protect the installation cavity 16.

[0024] Please refer to Figure 1 ,2 , 4. A directional groove 12 is provided on the inner lower surface of the inner groove 3. Sliding wheels 13 are provided on both sides of the lower end of the stretching frame 2, and the sliding wheels 13 slide along the directional groove 12, which plays a supporting effect on the stretching frame 2, avoiding damage to the electric push rod 5 caused by the bending of the stretching frame 2 under force, and also preventing the stretching frame 2 from shaking when moving, improving safety and stability.

[0025] Working principle: During use, the two ends of the polymer film to be subjected to stretching detection are respectively placed at the fixed positions of the first cylinder 6 and the second cylinder 7, that is, between the fixing plate 8 and the positioning plate 9. The first cylinder 6 and the second cylinder 7 are used to drive the two fixing plates 8 to move towards the positioning plate 9 respectively to squeeze and fix the two ends of the polymer film. After fixing, the excess polymer film is wound and fixed by the winding shaft 10 to avoid the phenomenon that the scattered part contacts the stretched part of the polymer film and causes inaccurate stretching results, improving the protection performance and accuracy. After fixing, the electric push rod 5 is used to drive the stretching frame 2 to move into the inner groove 3. When all move into the inner groove 3, the polymer film is then inside the inner groove 3 and does not protrude outside the front surface of the stretching machine body 1, thereby protecting the polymer film from both sides, avoiding the phenomenon that inaccurate stretching detection is caused by accidental touch, and improving the protection performance. The moving frame 19 is driven to move through the ball screw slide rail 17, thereby driving the first cylinder 6 to move upward while the second cylinder 7 remains stationary, so as to stretch the polymer film and perform stretching detection.

[0026] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A stretching detection device for a polymer membrane, comprising a stretching machine body (1), characterized in that: The front surface of the stretching machine body (1) is provided with an inner groove (3), and the inner groove (3) and the stretching machine body (1) are of an integral structure. The front end of the inner groove (3) is provided with a stretching frame (2). The front end of the stretching frame (2) is provided with a first cylinder (6). A second cylinder (7) is arranged below the first cylinder (6). One ends of the first cylinder (6) and the second cylinder (7) are provided with a fixing plate (8). A positioning plate (9) is arranged opposite to the fixing plate (8). A winding shaft (10) is arranged at one end of the positioning plate (9). An electric push rod (5) is arranged inside the inner groove (3).

2. The stretching detection device for a polymer membrane according to claim 1, wherein: The inner wall of the inner groove (3) is provided with a push rod installation groove (20), and the electric push rod (5) is inserted into the interior of the push rod installation groove (20). Both ends of the electric push rod (5) are fixed to the stretching machine body (1) and the stretching frame (2) respectively through fixing disks externally connected with bolts.

3. The stretching detection device for a polymer film according to claim 1, characterized in that: Both ends of the winding shaft (10) are provided with shaft brackets (14), and one end of the shaft bracket (14) is welded and fixed to the positioning plate (9). The winding shaft (10) is rotationally connected with the shaft bracket (14).

4. The stretching detection device for a polymer film according to claim 1, wherein: An installation cavity (16) is arranged inside the stretching frame (2), and one side of the installation cavity (16) is in an open form. A ball screw slide rail (17) is arranged inside the installation cavity (16). The ball screw slide rail (17) is composed of a screw, a servo motor and a screw moving seat (18). A moving frame (19) is arranged on one side of the screw moving seat (18), and the screw moving seat (18) is connected with the stretching frame (2) through the moving frame (19). A moving groove (4) for the up and down movement of the moving frame (19) is arranged on the front surface of the stretching frame (2), and the moving groove (4) communicates with the installation cavity (16).

5. The stretching detection device for polymer film according to claim 4, wherein: A protective cover plate (15) for protecting the installation cavity (16) is arranged at the opening of the installation cavity (16), and the corners of the protective cover plate (15) are threadedly fixed to the stretching frame (2) through externally connected bolts.

6. The stretching detection device for polymer film according to claim 1, wherein: A connecting plate (11) is welded on the rear surface of the positioning plate (9), and the other end of the connecting plate (11) is welded and fixed to the surface of the cylinder.

7. A stretching detection device for a polymer film according to claim 1, characterized in that: A guiding groove (12) is arranged on the lower surface inside the inner groove (3). Sliding wheels (13) are arranged on both sides of the lower end of the stretching frame (2), and the sliding wheels (13) slide along the guiding groove (12).

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