PE film edge tensioning device

Abstract

The utility model relates to a PE film edge tensioning device which comprises an installation base, a sliding groove is formed in the upper end of the installation base, a guide groove is formed in the groove wall of the bottom of the sliding groove, a linkage adjusting mechanism is arranged in the guide groove, guide blocks are inserted into the two ends in the guide groove, and the linkage adjusting mechanism is arranged in the guide groove. A mounting plate is arranged at the upper end of the guide block, a mounting support is arranged on one side of the mounting plate, and a spiral expansion mechanism is arranged on one side of the mounting support. The utility model relates to the technical field of PE film production and material collection. According to the PE film edge tensioning device, when the PE film edge tensioning device is used, a hexagonal connecting rod is manually rotated, so that an adjusting rod rotates, guide blocks on the two sides of the adjusting rod synchronously adjust the relative positions of two sets of spiral expansion mechanisms at the same time through cooperation of external threads and internal screw holes, and the tensioning device can achieve the effect of tensioning PE protective films with different width sizes; and the applicability of the tensioning device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PE film production and material collection, in particular to a PE film edge tensioning device. Background Art

[0002] PE protective film is the simplest macromolecular organic compound and the most widely used macromolecular material in the world today. PE protective film uses special polyethylene plastic film as the base material and is divided into high-density polyethylene protective film, medium-density polyethylene and low-density polyethylene according to different densities.

[0003] In the process of PE protective film production, it is easy for the pressure of the winder receiving roller to be too low, resulting in insufficient tension on both sides of the PE protective film and wrinkles.

[0004] During the winding process of the PE protective film, if the edge is not properly tensioned, wrinkles may appear on the edge due to the shrinkage of the material or the rotational force of the reel. These wrinkles can easily affect the performance of the PE protective film in subsequent use, and wrinkles on the edge of the PE protective film are not conducive to subsequent processing. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a PE film edge tensioning device so as to solve the technical problems mentioned in the above background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A PE film edge tensioning device comprises a mounting base, a sliding groove is provided at the upper end of the mounting base, a guide groove is provided at the bottom groove wall of the sliding groove, a linkage adjustment mechanism is provided inside the guide groove, guide blocks are inserted into the two ends of the guide groove, a mounting plate is provided at the upper end of the guide block, a mounting bracket is provided on one side of the mounting plate, a spiral expansion mechanism is provided on one side of the mounting bracket, and positioning frames fixedly connected to the mounting base are provided at both ends of the sliding groove.

[0008] Furthermore, the linkage adjustment mechanism includes a rotating ring, which is fixedly connected to the middle part of the groove wall of the guide groove, and an adjusting rod is rotatably connected to the inner ring of the rotating ring. The adjusting rod is located on both sides of the rotating ring and is provided with external threads with opposite spiral directions, and a hexagonal connecting rod is provided at one end of the adjusting rod.

[0009] Furthermore, an internal threaded hole threadably matched with the external thread is provided inside the guide block.

[0010] Furthermore, a rotation groove is provided at the upper end of the mounting plate, and a guide roller is rotatably connected to the interior of the rotation groove via a rotating shaft.

[0011] Furthermore, the spiral expansion mechanism includes a rotating rod, which is inserted into the interior of the mounting bracket and is rotatably connected to the mounting bracket. A conical cylinder is provided on one side of the rotating rod close to the middle of the mounting base, and a guide thread is fixedly wound on the outer surface of the conical cylinder.

[0012] Furthermore, the upper ends of the two positioning frames are commonly connected to a hexagonal transmission rod, which passes through the axis lines of the two groups of conical cylinders and the rotating rod, and the conical cylinder and the rotating rod are both slidably connected to the hexagonal transmission rod, and both ends of the hexagonal transmission rod are fixedly connected to shaft sleeves that are rotatably connected to the positioning frames.

[0013] In summary, the present invention includes at least one of the following beneficial technical effects:

[0014] 1. This PE film edge tensioning device, when in use, manually rotates the hexagonal connecting rod to rotate the adjusting rod, and the guide blocks on both sides of the adjusting rod simultaneously and synchronously adjust the relative positions of the two sets of spiral expansion mechanisms through the cooperation of the external thread and the internal screw hole, so that the tensioning device can tension PE protective films of different widths, effectively improving the applicability of the tensioning device;

[0015] 2. This PE film edge tensioning device uses a driving motor arranged at one end of a hexagonal transmission rod to enable the hexagonal transmission rod to simultaneously and synchronously drive two groups of conical cylinders and a rotating rod to rotate in the opposite direction of the PE protective film winding rotation direction, and then the wrinkles on both sides of the PE protective film are stretched through the guide thread on the surface of the conical cylinder, thereby achieving the purpose of tensioning both sides of the PE protective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of a PE film edge tensioning device of the utility model.

[0018] Figure 2 It is a structural schematic diagram of an adjustment mechanism linked to a PE film edge tensioning device of the utility model.

[0019] Figure 3It is a structural schematic diagram of a spiral expansion mechanism of a PE film edge tensioning device of the utility model.

[0020] Figure 4 It is a structural schematic diagram of a mounting base of a PE film edge tensioning device of the utility model.

[0021] In the figure, 1. mounting base; 2. sliding groove; 3. guide groove; 4. linkage adjustment mechanism; 41. rotating ring; 42. adjusting rod; 43. external thread; 44. hexagonal connecting rod; 5. guide block; 51. internal screw hole; 6. mounting plate; 61. rotating groove; 62. guide roller; 7. mounting bracket; 8. spiral expansion mechanism; 81. rotating rod; 82. conical cylinder; 83. guide thread; 9. positioning frame; 10. hexagonal transmission rod; 11. bushing. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Example:

[0024] Reference Figure 1 - Figure 4 The utility model discloses a PE film edge tensioning device, comprising a mounting base 1, a sliding groove 2 is provided at the upper end of the mounting base 1, a guide groove 3 is provided at the bottom groove wall of the sliding groove 2, a linkage adjustment mechanism 4 is arranged inside the guide groove 3, guide blocks 5 are inserted into the two ends of the guide groove 3, a mounting plate 6 is arranged at the upper end of the guide block 5, a mounting bracket 7 is arranged on one side of the mounting plate 6, a spiral expansion mechanism 8 is arranged on one side of the mounting bracket 7, and positioning frames 9 fixedly connected to the mounting base 1 are arranged at both ends of the sliding groove 2.

[0025] In this embodiment, when in use, the base is installed on the front section of the PE protective film winder, and the two sides of the PE protective film are respectively passed through the bottom of the spiral expansion mechanism 8 on both sides. By rotating the spiral expansion mechanism 8, the two sides of the PE protective film are stretched to both ends in cooperation with the thread, so as to achieve the purpose of tensioning the two sides of the PE protective film. The linkage adjustment mechanism 4 is used to adjust the distance between the two guide blocks 5, so that the distance between the two mounting plates 6 is changed, thereby achieving the purpose of the distance between the two sets of spiral expansion mechanisms 8, so that the tensioning device can be suitable for tensioning PE protective films of different widths.

[0026] In a further preferred embodiment of the present invention, Figure 1-4As shown, the linkage adjustment mechanism 4 includes a rotating ring 41, which is fixedly connected to the middle part of the groove wall of the guide groove 3, and an adjusting rod 42 is rotatably connected to the inner ring of the rotating ring 41. The adjusting rod 42 is located on both sides of the rotating ring 41 and is provided with external threads 43 with opposite spiral directions, and a hexagonal connecting rod 44 is provided at one end of the adjusting rod 42.

[0027] In this embodiment, the rotating ring 41 is located in the middle of the outer surface of the adjusting rod 42, and the adjusting rod 42 is rotatably connected to the rotating ring 41 through a bearing. When in use, the adjusting rod 42 is rotated by manually rotating the hexagonal connecting rod 44, and then the guide blocks 5 on both sides are simultaneously moved closer to or away from the middle of the mounting base 1 through the setting of the external threads 43 with opposite spiral directions on both sides, so as to achieve the effect of synchronously adjusting the relative positions of the two sets of spiral expansion mechanisms 8, so that the tensioning device can tension the PE protective films of different widths.

[0028] In a further preferred embodiment of the present invention, Figure 1-4 As shown, an internal threaded hole 51 threadably matched with the external thread 43 is formed inside the guide block 5 .

[0029] In this embodiment, an internal screw hole 51 is provided which is threadably matched with the external thread 43, and the guide block 5 is sleeved on the outer surface of the adjusting rod 42 through the internal screw hole 51. When the adjusting rod 42 rotates, the guide block 5 can move, thereby achieving the effect of adjusting the position of the spiral expansion mechanism 8.

[0030] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a rotation groove 61 is formed at the upper end of the mounting plate 6, and a guide roller 62 is rotatably connected to the interior of the rotation groove 61 via a rotating shaft.

[0031] In this embodiment, the rotating groove 61 is used to install the guide roller 62, and the outer surface of the guide roller 62 slightly protrudes from the rotating groove 61, so that the PE protective film can avoid friction with the upper surface of the mounting plate 6 when passing through the bottom of the spiral expansion mechanism 8, thereby preventing the PE protective film from being damaged due to friction.

[0032] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the spiral expansion mechanism 8 includes a rotating rod 81, which is inserted into the interior of the mounting bracket 7 and is rotatably connected to the mounting bracket 7. A conical cylinder 82 is provided on one side of the rotating rod 81 close to the middle of the mounting base 1, and a guide thread 83 is fixedly wound on the outer surface of the conical cylinder 82.

[0033] In this embodiment, the conical cylinder 82 is rotatably connected to the mounting bracket 7 by the setting of the rotating rod 81. When the PE protective film is pulled and wound by the winder, the conical cylinder 82 moves in the opposite direction to the PE protective film, so that the guide thread 83 stretches the two sides of the PE protective film outward, thereby achieving the purpose of tensioning the PE protective film.

[0034] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the upper ends of the two positioning frames 9 are commonly connected with a hexagonal transmission rod 10, and the hexagonal transmission rod 10 passes through the axis lines of the two groups of conical cylinders 82 and the rotating rod 81, and the conical cylinder 82 and the rotating rod 81 are both slidably connected to the hexagonal transmission rod 10, and the two ends of the hexagonal transmission rod 10 are fixedly connected with a shaft sleeve 11 rotatably connected to the positioning frame 9.

[0035] In this embodiment, through the setting of the hexagonal transmission rod 10, the two groups of conical cylinders 82 and the rotating rod 81 are passed through at the same time, so that the two groups of conical cylinders 82 and the rotating rod 81 can rotate synchronously at the same time, and a driving motor is provided at one end of the hexagonal transmission rod 10. The driving motor enables the hexagonal transmission rod 10 to drive the two groups of conical cylinders 82 and the rotating rod 81 to rotate in the opposite direction to the winding rotation direction of the PE protective film, and cooperates with the guide screw to stretch the two sides of the PE protective film outward, so as to achieve the effect of tensioning the two sides of the PE protective film.

[0036] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A PE film edge tensioning device, comprising a mounting base (1), It is characterized in that A sliding groove (2) is provided at the upper end of the mounting base (1), a guide groove (3) is provided at the bottom groove wall of the sliding groove (2), a linkage adjustment mechanism (4) is provided inside the guide groove (3), guide blocks (5) are inserted at both ends of the guide groove (3), a mounting plate (6) is provided at the upper end of the guide block (5), a mounting bracket (7) is provided on one side of the mounting plate (6), a spiral expansion mechanism (8) is provided on one side of the mounting bracket (7), and positioning frames (9) fixedly connected to the mounting base (1) are provided at both ends of the sliding groove (2).

2. A PE film edge tensioning device according to claim 1, It is characterized in that The linkage adjustment mechanism (4) comprises a rotating ring (41), the rotating ring (41) is fixedly connected to the middle part of the groove wall of the guide groove (3), an adjusting rod (42) is rotatably connected to the inner ring of the rotating ring (41), the adjusting rod (42) is provided with external threads (43) with opposite spiral directions on both sides of the rotating ring (41), and a hexagonal connecting rod (44) is provided at one end of the adjusting rod (42).

3. A PE film edge tensioning device according to claim 2, It is characterized in that An internal threaded hole (51) threadably matched with the external thread (43) is provided inside the guide block (5).

4. A PE film edge tensioning device according to claim 3, It is characterized in that A rotation groove (61) is provided at the upper end of the mounting plate (6), and a guide roller (62) is rotatably connected to the interior of the rotation groove (61) via a rotating shaft.

5. A PE film edge tensioning device according to claim 4, It is characterized in that The spiral expansion mechanism (8) comprises a rotating rod (81), the rotating rod (81) is inserted into the interior of the mounting bracket (7) and is rotatably connected to the mounting bracket (7), a conical tube (82) is provided on one side of the rotating rod (81) close to the middle of the mounting base (1), and a guide thread (83) is fixedly wound around the outer surface of the conical tube (82).

6. A PE film edge tensioning device according to claim 5, It is characterized in that The upper ends of the two positioning frames (9) are commonly connected to a hexagonal transmission rod (10), the hexagonal transmission rod (10) passes through the axis lines of the two groups of conical cylinders (82) and the rotating rod (81), and the conical cylinder (82) and the rotating rod (81) are both slidably connected to the hexagonal transmission rod (10), and the two ends of the hexagonal transmission rod (10) are fixedly connected to shaft sleeves (11) rotatably connected to the positioning frames (9).

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