Tension tension detection device for polypropylene film production

Abstract

The utility model relates to the technical field of films, in particular to a tension stretching detection device for polypropylene film production, which comprises a rack, the rack comprises a shade, a support, a motor, a transmission structure, a clamping structure and an operation table, the shade is fixed at the top end of the rack, the support is fixed on the side surface of the rack, the motor is fixed on the side surface of the support, and the transmission structure is connected to the output end of the motor; the shade is closed in the detection process, when the thin film is detected, the shade can be opened, the tail end of the thin film is placed on the clamping structure to be clamped, the thin film is stretched through the transmission structure, and therefore the tension of the thin film is detected, the thin film can be pressed by fingers to be flatly attached into the thin film groove, and the tail end of the thin film is flatly placed in the thin film groove. The clamping edge clamps the tail end of the thin film, the clamping edge penetrates through the arc-shaped side face of the connecting column, the contact area of the clamping edge and the thin film is large, the thin film is further clamped through the reinforcing edge, and the clamping effect is remarkable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of film, concretely is a kind of polypropylene film production is tensioned and is detected device. BACKGROUND

[0002] The production of biaxially oriented polypropylene film is to first make a melt of high molecular polypropylene into a sheet or thick film through a narrow machine head, then stretch in two perpendicular directions (longitudinal and transverse) at a certain temperature and set speed simultaneously or in steps in a special stretching machine, and make the film through appropriate cooling or heat treatment or special processing (such as corona, coating, etc.). The tensile strength of the composite film bag is measured using a testing machine to help production enterprises control product quality, packaging plants understand product performance and reduce waste. The utility model discloses a kind of polypropylene film production is tensioned and is detected device, application number CN202121929496.2, the structure can effectively increase clamping effect by setting roll type clamping structure, can increase the area of adhesion with film by roll, to increase friction, can effectively prevent film loosening or falling off caused by insufficient clamping force of clamping structure, affect detection effect, and can ensure uniformity of stretching, increase stretching effect, setting jacking structure can lift the film upwards to test film tension, cooperate with scale line to accurately obtain film tension coefficient, improve detection precision. The structure inserts the film end into the groove 13, and then clamps and fastens the film by the clamping plate 14. The clamped part has little effect on clamping effect, and the film end is inserted into the film end. The space in the film end is small, and the user cannot adjust the film in the film end, which affects the clamping effect. UTILITY MODEL CONTENTS

[0003] In view of the deficiencies of the prior art, the utility model provides a kind of polypropylene film production is tensioned and is detected device, with the advantages of.

[0004] To achieve the above-mentioned functional purposes, the utility model provides the following technical scheme: a kind of polypropylene film production is tensioned and is detected device, including rack, it is characterized in that: the rack includes shade, support, motor, transmission structure, clamping structure, operation platform, the shade is fixed to rack top end, the support is fixed to rack side, the motor is fixed to support side, the transmission structure is connected to motor output end, the clamping structure includes but is not limited to two, and each clamping structure is connected to transmission structure near shade side, the operation platform is fixed to rack one side.

[0005] Further, the transmission structure includes a rotating disc, rotating rods, a sliding block and a screw rod, the rotating disc is connected to the output end of the motor at the center, the rotating rods are not limited to two, and each rotating rod is connected to one side of the rotating disc, the sliding block is connected to the other side of the rotating rod, and the screw rod is fixed to one side of the support, the sliding block is connected to the annular side of the screw rod, and the sliding block slides on the threaded annular side of the screw rod.

[0006] Further, the clamping structure includes a connecting column, a clamping edge, a pressing edge, an outer spring, a reinforcing edge, a film groove and a threaded groove, the threaded groove is fixed to one side of the sliding block, the connecting column is connected to one side of the threaded groove, one end of the outer spring is connected to the side of the connecting column, the pressing edge is connected to the other side of the outer spring, the clamping edge is connected to one side of the pressing edge, the reinforcing edge is connected to one side of the clamping edge, the film groove is fixed to one side of the connecting column, the film groove is below the clamping edge, and the connecting end of the connecting column and the threaded groove is connected with a threaded block; the connecting column is connected through the threaded block and the threaded groove, the connecting column is installed by rotating at one side of the threaded groove, the film can be attached to the arc side of the connecting column, the stability of the clamping structure for clamping the film is improved, and the outer spring is a torsion spring.

[0007] Further, the reinforcing edge includes a threaded ring, a threaded wall, a pressing plate, an inner spring and a limiting column, the threaded wall is fixed to one side of the reinforcing edge, the threaded ring is connected to the annular inner side of the threaded wall, the pressing plate is connected to the annular outer side of the threaded wall, the limiting column is connected to the bottom end of the threaded ring, the inner spring is located on the annular side of the limiting column, and the threaded ring is hexagonal. A hexagonal wrench is inserted into the threaded ring, the threaded ring rotates at one side of the threaded wall, the pressing plate is pressed down, the inner spring is compressed by the threaded ring, and the pressing plate further clamps the film.

[0008] Compared with the prior art, the advantages of the utility model lie in that the cover is closed during the detection process, the cover can be opened when the film is detected, the tail end of the film is placed in the clamping structure for clamping, the film is stretched through the transmission structure, so that the tension of the film is detected, the film can be pressed flat in the film groove by fingers, the tail end of the film is placed flat in the film groove, the tail end of the film is clamped by the clamping edge, the clamping edge penetrates the arc side of the connecting column, so that the contact area of the clamping edge and the film is increased, the film is further clamped by the reinforcing edge, and the clamping effect is remarkable. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a three-dimensional structure schematic view of the tension tensile detection device for polypropylene film production;

[0010] Figure 2 It is a three-dimensional structure schematic view of the tension tensile detection device for polypropylene film production;

[0011] Figure 3 It is a clamping structure schematic view of the tension tensile detection device for polypropylene film production of the utility model;

[0012] Figure 4 It is a transmission structure schematic view of the tension tensile detection device for polypropylene film production of the utility model;

[0013] Figure 5 It is a reinforcing edge structure schematic view of the tension tensile detection device for polypropylene film production of the utility model.

[0014] In the drawing, reference numerals are: rack 1, shade 2, support 3, motor 4, transmission structure 5, clamping structure 6, operation table 7, rotating disc 51, rotating rod 52, sliding block 53, screw rod 54, connecting column 61, clamping edge 62, pressing edge 63, outer spring 64, reinforcing edge 65, film groove 66, screw groove 67, screw thread ring 651, screw thread wall 652, pressing plate 653, inner spring 654, limiting column 655. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Embodiments, please refer to Figures 1-5 A tension tensile detection device for polypropylene film production, including rack 1, its characterized in that: the rack 1 includes shade 2, support 3, motor 4, transmission structure 5, clamping structure 6, operation table 7, the shade 2 is fixed on the top of rack 1, the support 3 is fixed on the side of rack 1, the motor 4 is fixed on the side of support 3, the transmission structure 5 is connected to the output end of motor 4, the clamping structure 6 includes but is not limited to two, and each clamping structure 6 is connected to the side of transmission structure 5 close to shade 2, the operation table 7 is fixed on the side of rack 1.

[0016] The transmission structure 5 includes rotating disc 51, rotating rod 52, sliding block 53, screw rod 54, the rotating disc 51 center end is connected to the output end of motor 4, the rotating rod 52 includes but is not limited to two, and each rotating rod 52 is connected to the side of rotating disc 51, the sliding block 53 is connected to the other side of rotating rod 52, the screw rod 54 is fixed on the side of support 3, the sliding block 53 is connected to the annular side surface of screw rod 54, and the sliding block 53 slides on the screw thread annular side surface of screw rod 54.

[0017] The clamping structure 6 includes a connecting column 61, a clamping edge 62, a pressing edge 63, an outer spring 64, a reinforcing edge 65, a film groove 66, and a threaded groove 67. The threaded groove 67 is fixed on one side of the sliding block 53. The connecting column 61 is connected to one side of the threaded groove 67. One end of the outer spring 64 is connected to the side of the connecting column 61. The pressing edge 63 is connected to the other side of the outer spring 64. The clamping edge 62 is connected to one side of the pressing edge 63. The reinforcing edge 65 is connected to one side of the clamping edge 62. The film groove 66 is fixed on one side of the connecting column 61. The film groove 66 is located below the clamping edge 62. The connecting end of the connecting column 61 and the threaded groove 67 is connected with a threaded block. The connecting column is connected through the threaded block and the threaded groove. The connecting column is installed by rotating the threaded block on one side of the threaded groove. The film can be attached to the arc-shaped side of the connecting column. The stability of the clamping structure for clamping the film is improved. The outer spring 64 is a torsional spring.

[0018] The reinforcing edge 65 includes a threaded ring 651, a threaded wall 652, a pressing plate 653, an inner spring 654, and a limiting column 655. The threaded wall 652 is fixed on one side of the reinforcing edge 65. The threaded ring 651 is connected to the inner side of the annular threaded wall 652. The pressing plate 653 is connected to the outer side of the annular threaded wall 652. The limiting column 655 is connected to the bottom end of the threaded ring 651. The inner spring 654 is located on the annular side of the limiting column 655. The threaded ring 651 is hexagonal. A hexagonal wrench is inserted into the threaded ring 651. The threaded ring 651 rotates on one side of the threaded wall 652. The pressing plate 653 is pressed down. The inner spring 654 is compressed by the threaded ring. The pressing plate further clamps the film.

[0019] Working principle: the cover 2 is closed during the detection process. When detecting the film, the cover can be opened. The tail end of the film is placed in the clamping structure 6 for clamping. The film is stretched through the transmission structure 5. Thus, the tension of the film is detected. The motor 4 drives the transmission structure to operate. The pressing edge 63 is pressed by hand. The clamping edge 62 is lifted up through the compression of the outer spring 64. The tail end of the film is placed in the film groove 66 and flattened. The pressing edge 63 is released. The outer spring 64 on one side of the clamping edge returns. The clamping edge clamps the film. A hexagonal wrench is inserted into the threaded ring 651. The threaded ring 651 rotates on one side of the threaded wall 652. The pressing plate 653 is pressed down. The inner spring 654 is compressed by the threaded ring. The pressing plate further clamps the film. The transmission structure specifically drives the rotating rod 52 to rotate through the rotating disc 51. Thus, the sliding block 53 is displaced on the annular side of the screw rod 54. Thus, the film is stretched. The tension of the film is detected.

[0020] The basic principle and main features of the present application and the advantages of the present application are shown and described above, for those skilled in the art, obviously the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application 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 in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0021] In addition, it should be understood that, although the present application is described in the form of embodiments, not every embodiment contains only one independent technical solution, the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A tension testing device for polypropylene film production, comprising a frame (1), characterized in that: The frame (1) includes a cover (2), a bracket (3), a motor (4), a transmission structure (5), a clamping structure (6), and an operating table (7). The cover (2) is fixed to the top of the frame (1), the bracket (3) is fixed to the side of the frame (1), the motor (4) is fixed to the side of the bracket (3), the transmission structure (5) is connected to the output end of the motor (4), the clamping structure (6) includes, but is not limited to, two, and each clamping structure (6) is connected to the side of the transmission structure (5) near the cover (2), and the operating table (7) is fixed to one side of the frame (1).

2. The tension testing device for polypropylene film production according to claim 1, characterized in that: The transmission structure (5) includes a turntable (51), a rotating rod (52), a slider (53), and a screw (54). The center end of the turntable (51) is connected to the output end of the motor (4). The rotating rod (52) includes, but is not limited to, two rods, and each rotating rod (52) is connected to one side of the turntable (51). The slider (53) is connected to the other side of the rotating rod (52). The screw (54) is fixed to one side of the bracket (3), and the slider (53) is connected to the annular side of the screw (54).

3. The tension testing device for polypropylene film production according to claim 1, characterized in that: The clamping structure (6) includes a connecting post (61), a clamping edge (62), a pressing edge (63), an outer spring (64), a reinforcing edge (65), a film groove (66), and a threaded groove (67). The threaded groove (67) is fixed to one side of the slider (53). The connecting post (61) is connected to one side of the threaded groove (67). One end of the outer spring (64) is connected to the side of the connecting post (61). The pressing edge (63) is connected to the other side of the outer spring (64). The clamping edge (62) is connected to one side of the pressing edge (63). The reinforcing edge (65) is connected to one side of the clamping edge (62). The film groove (66) is fixed to one side of the connecting post (61). The film groove (66) is located below the clamping edge (62). The connecting end of the connecting post (61) and the threaded groove (67) is connected to a threaded block.

4. The tension testing device for polypropylene film production according to claim 3, characterized in that: The reinforcing edge (65) includes a threaded ring (651), a threaded wall (652), a pressure plate (653), an inner spring (654), and a limiting post (655). The threaded wall (652) is fixed to one side of the reinforcing edge (65). The threaded ring (651) is connected to the inner side of the annular threaded wall (652). The pressure plate (653) is connected to the outer side of the annular threaded wall (652). The limiting post (655) is connected to the bottom end of the threaded ring (651). The inner spring (654) is located on the annular side of the limiting post (655).

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