CN216548839U

CN216548839U - Film winding tensioning texture

Info

Publication number: CN216548839U
Application number: CN202123171823.5U
Authority: CN
Inventors: 谭艳芳; 彭志伟; 张林川
Original assignee: Mingyi Machinery Tianjin Co ltd
Current assignee: Mingyi Machinery Tianjin Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-05-17
Anticipated expiration: 2031-12-16

Abstract

The utility model discloses a film winding and tensioning structure, and belongs to the technical field of film production. It includes two support columns, be equipped with the wind-up roll between two support columns, and the both ends of wind-up roll all rotate with two support columns respectively through first pivot and be connected, the front side of wind-up roll is equipped with the tensioning roller, the both sides of wind-up roll all are equipped with spacing frame, two spacing frames all are fixed with two support columns respectively through the connecting piece, all be fixed with the vertical axis in two spacing frames, and the vertical axis slides and has cup jointed the fly leaf, the both ends of tensioning roller all rotate with two fly leafs respectively through the second pivot and be connected, the top of two fly leafs all is fixed with the locating lever, and the locating lever is kept away from tensioning roller one side setting. According to the utility model, the film wound around the tensioning roller is tensioned under the action of the gravity of the balancing weights, the applied tensioning force is always constant, the tensioning stability is ensured, and meanwhile, the weight and the number of the balancing weights can be adjusted as required.

Description

Film winding tensioning texture

Technical Field

The utility model relates to a film winding and tensioning structure, and belongs to the technical field of film production.

Background

In order to keep a packaging film flat during conveyance, a tension mechanism is generally installed in the conveyance path so that the packaging film is in a taut state during conveyance.

At present, the tensioning of the film is usually realized through the elastic force of an elastic device, the elastic device is easy to lose effectiveness in long-term use, and the pressure generated by the elastic device in the processes of compression and extension can be changed, so that the tensioning effect of the film is influenced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the utility model provides a film winding tension structure, it has solved resilient means and has lost efficacy very easily in long-term the use, and resilient means can change at its pressure that produces in compression and extension in-process, and then influences the problem of the effect of film tensioning.

The technical problem to be solved by the utility model is realized by adopting the following technical scheme:

the utility model provides a film winding tensioning texture, includes two support columns, two be equipped with the wind-up roll between the support column, just the both ends of wind-up roll all rotate with two support columns respectively through first pivot and are connected, the front side of wind-up roll is equipped with the tensioning roller, the both sides of wind-up roll all are equipped with spacing frame, two spacing frame all is fixed with two support columns respectively through the connecting piece, two all be fixed with the vertical axis in the spacing frame, just the vertical axis slides and has cup jointed the fly leaf, the both ends of tensioning roller all rotate with two fly leaves respectively through the second pivot and be connected, two the top of fly leaf all is fixed with the locating lever, just the setting of tensioning roller one side is kept away from to the locating lever, two the locating lever all slides and has cup jointed a plurality of balancing weights, two all be equipped with spacing subassembly on the locating lever.

As a preferred example, each limiting assembly comprises a positioning ring, an elastic ring and a piston, the positioning ring is movably sleeved with the positioning rod, the elastic ring is fixed in the positioning ring, the positioning ring is provided with an annular groove, the outer wall of the positioning ring is provided with a through hole communicated with the annular groove, one end of the piston is slidably connected with the through hole, the other end of the piston is fixed with an elastic rod, the other end of the elastic rod is fixed with a clamping block, and the top of the positioning ring is provided with a clamping groove matched with the clamping block.

As a preferred example, a strip-shaped hole is formed in the side wall of each piston, a fixing block is arranged in each strip-shaped hole, and two ends of each fixing block are fixed to the positioning rings.

As a preferable example, a pull rod is fixed on the top of each fixture block, and the pull rod is obliquely arranged.

As a preferable example, the top and the bottom of each limit frame are respectively fixed with a mounting ring, each mounting ring is internally provided with a bolt, and the bolt is in threaded connection with a support column.

As a preferable example, one end of each piston, which is close to the elastic ring, is fixedly sleeved with a sealing ring, and the sealing ring is abutted against the through hole.

As a preferred example, the positioning rod is a diamond-shaped rod.

The utility model has the beneficial effects that: the film wound around the tensioning roller is tensioned under the action of the gravity of the balancing weights, the applied tensioning force is constant all the time, the tensioning stability is ensured, and meanwhile, the weight and the number of the balancing weights can be adjusted according to needs.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of a portion a in fig. 1.

In the figure: the device comprises a support column 1, a wind-up roll 2, a tensioning roll 3, a limiting frame 4, a vertical shaft 5, a movable plate 6, a positioning rod 7, a balancing weight 8, a positioning ring 9, an elastic ring 10, a piston 11, an elastic rod 12, a clamping block 13, a fixing block 14, a pull rod 15, a mounting ring 16 and a sealing ring 17.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the utility model easy to understand, the utility model is further described with reference to the specific drawings.

As shown in FIG. 1-2, a film winding and tensioning structure comprises two supporting columns 1, a wind-up roll 2 is arranged between the two supporting columns 1, both ends of the wind-up roll 2 are respectively rotatably connected with the two supporting columns 1 through first rotating shafts, a tensioning roll 3 is arranged on the front side of the wind-up roll 2, both sides of the wind-up roll 2 are respectively provided with a limiting frame 4, the two limiting frames 4 are respectively fixed with the two supporting columns 1 through connecting pieces, a mounting ring 16 is fixed on the top and the bottom of each limiting frame 4, a bolt is arranged in each mounting ring 16 and is in threaded connection with the supporting columns 1, so that the fixing and the dismounting of the limiting frames 4 can be realized, a vertical shaft 5 is fixed in each limiting frame 4, a movable plate 6 is sleeved on the vertical shaft 5 in a sliding manner, both ends of the tensioning roll 3 are respectively rotatably connected with the two movable plates 6 through second rotating shafts, positioning rods 7 are fixed on the tops of the two movable plates 6, and the locating lever 7 is kept away from tensioning roller 3 one side and is set up, and two locating levers 7 all slip and cup joint a plurality of balancing weights 8, and locating lever 7 is the rhombus pole, prevents that balancing weight 8 from rotating, all is equipped with spacing subassembly on two locating levers 7.

Each limiting component comprises a positioning ring 9, an elastic ring 10 and a piston 11, the positioning ring 9 is movably sleeved with a positioning rod 7, the elastic ring 10 is fixed in the positioning ring 9, the positioning ring 9 is provided with a ring groove, the outer wall of the positioning ring 9 is provided with a through hole communicated with the ring groove, one end of the piston 11 is in sliding connection with the through hole, one end of each piston 11 close to the elastic ring 10 is fixedly sleeved with a sealing ring 17, the sealing ring 17 is abutted against the through hole, the sealing performance between the piston 11 and the through hole can be improved, the side wall of each piston 11 is provided with a strip-shaped hole, a fixing block 14 is arranged in the strip-shaped hole, two ends of the fixing block 14 are fixed with the positioning ring 9, the moving position of the piston 11 can be limited, the other end of the piston 11 is fixedly provided with an elastic rod 12, the other end of the elastic rod 12 is fixedly provided with a clamping block 13, the top of the positioning ring 9 is provided with a clamping groove matched with the clamping block 13, the top of each clamping block 13 is fixed with a pull rod 15, and the pull rods 15 are obliquely arranged, so that the elastic rod 12 can be conveniently pulled to deform, and the clamping blocks 13 can be conveniently separated from the clamping grooves.

The working principle is as follows: when in use, a film sequentially winds the winding roller 2 and the tensioning roller 3, the tensioning roller 3 can slide on the vertical shaft 5 through the limiting frame 4 and the vertical shaft 5, the film can be tensioned through the plurality of balancing weights 8 and the gravity of the tensioning roller 3, the applied tensioning force is always a constant value, the stability of tensioning is ensured, the positioning ring 9 and the positioning rod 7 are slidably sleeved through the positioning ring 9, the bottom of the positioning ring 9 is abutted against the balancing weights 8, the piston 11 is pressed through the piston 11, air in the through hole can be discharged into the annular groove, the elastic ring 10 can be extruded, the elastic ring 10 and the positioning rod 7 are abutted against each other, the elastic force of the elastic rod 12 can enable the clamping block 13 to be clamped into the clamping groove through the elastic force of the elastic rod 12, the position of the piston 11 is limited, and the stability of the abutting of the elastic ring 10 and the positioning rod 7 is ensured, further, the positions of the weights 8 can be limited to prevent the weights from being separated from the positioning rod 7.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A film winding tension structure, includes two support columns (1), its characterized in that: a winding roller (2) is arranged between the two support columns (1), the two ends of the winding roller (2) are respectively rotatably connected with the two support columns (1) through first rotating shafts, a tensioning roller (3) is arranged on the front side of the winding roller (2), limiting frames (4) are arranged on the two sides of the winding roller (2), the two limiting frames (4) are respectively fixed with the two support columns (1) through connecting pieces, vertical shafts (5) are respectively fixed in the two limiting frames (4), movable plates (6) are slidably sleeved on the vertical shafts (5), the two ends of the tensioning roller (3) are respectively rotatably connected with the two movable plates (6) through second rotating shafts, positioning rods (7) are respectively fixed at the tops of the two movable plates (6), the positioning rods (7) are arranged on one side away from the tensioning roller (3), the two positioning rods (7) are respectively slidably sleeved with a plurality of balancing weights (8), and two positioning rods (7) are respectively provided with a limiting assembly.

2. The film winding tension structure as claimed in claim 1, wherein: every spacing subassembly all includes holding ring (9), elastic ring (10) and piston (11), holding ring (9) are established with locating lever (7) activity cover, elastic ring (10) are fixed with in holding ring (9), just holding ring (9) seted up with the ring channel, the through-hole that is linked together with the ring channel is seted up to the outer wall of holding ring (9), the one end and the through-hole sliding connection of piston (11), the other end of piston (11) is fixed with flexible pole (12), just the other end of flexible pole (12) is fixed with fixture block (13), the draw-in groove with fixture block (13) assorted has been seted up at the top of holding ring (9).

3. The film winding tension structure as claimed in claim 2, wherein: every the lateral wall of piston (11) has all seted up the bar hole, just bar downthehole fixed block (14) that is equipped with, the both ends of fixed block (14) all are fixed with holding ring (9).

4. The film winding tension structure as claimed in claim 2, wherein: and a pull rod (15) is fixed at the top of each clamping block (13), and the pull rods (15) are obliquely arranged.

5. The film winding tension structure as claimed in claim 1, wherein: and mounting rings (16) are fixed at the top and the bottom of each limiting frame (4), a bolt is arranged in each mounting ring (16), and the bolt is in threaded connection with the support column (1).

6. The film winding tension structure as claimed in claim 2, wherein: and each piston (11) is fixedly sleeved with a sealing ring (17) at one end close to the elastic ring (10), and the sealing rings (17) are mutually abutted with the through holes.

7. The film winding tension structure as claimed in claim 1, wherein: the positioning rod (7) is a diamond-shaped rod.