CN219771329U

CN219771329U - Tension adjusting mechanism

Info

Publication number: CN219771329U
Application number: CN202321005850.1U
Authority: CN
Inventors: 何毅松; 徐建林; 蒯池
Original assignee: Yilong Laser Technology Yunnan Co ltd
Current assignee: Yilong Laser Technology Yunnan Co ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-09-29
Anticipated expiration: 2033-04-28

Abstract

The utility model discloses a tension adjusting mechanism, which comprises a tension adjusting main body and supporting frames positioned at two sides of the tension adjusting main body, wherein the tension adjusting main body comprises a swinging rod, a first adjusting roller and a second adjusting roller, the swinging rod is positioned at two sides of the first adjusting roller and the second adjusting roller, the two sides of the first adjusting roller and the second adjusting roller are rotatably connected with the swinging rod, a rotating shaft is arranged at the outer side of the swinging rod and is rotatably connected with the supporting frames, the first adjusting roller and the second adjusting roller are respectively positioned at two sides of the rotating shaft, a buffer block is arranged at the inner side of the supporting frames, and the outer wall of the swinging rod can be contacted with or separated from the inner wall of the buffer block. According to the utility model, the buffer block is arranged, so that the buffer block can be tightly matched with the swing rod when the swing rod swings downwards, the descending speed of the swing rod is reduced, the tension adjusting main body is prevented from swinging under the inertia effect, and the reliability of the structure is improved.

Description

Tension adjusting mechanism

Technical Field

The utility model relates to the technical field of conveying tension adjustment, in particular to a tension adjustment mechanism.

Background

In the conveying process of products such as films and papers, because conveying errors among different driving mechanisms can cause the tension moment of the products to change in the conveying process, in order to ensure the conveying effect, tension adjusting mechanisms are often arranged in the equipment, conveying tension of the products is adjusted through the tension adjusting mechanisms, at present, most of the tension adjusting mechanisms are provided with brackets at two ends of a tension roller, the brackets are hinged with the equipment, when the products are conveyed to the tension mechanism, the lower parts of the tension roller are abutted against the upper surface of the products, an included angle exists between the tension adjusting mechanisms and a horizontal plane, downward force can be applied to the surfaces of the products through the gravity of the tension roller, and when the products are loosened in conveying, the tension roller descends to tighten the products, so that the tension of the products in conveying is adjusted;

the tension roller can fall rapidly under the gravity of the tension roller when the product breaks, and the tension roller can shake back and forth under the action of inertia, so that the tension roller can collide with other devices in the falling process, and equipment is damaged, and improvement is needed.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a tension adjusting mechanism, which can be tightly matched with a buffer block when a swinging rod swings downwards so as to reduce the descending speed of the swinging rod, prevent a tension adjusting main body from swinging under the action of inertia, and improve the reliability of the structure.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a tension adjusting mechanism, includes tension adjusting main part and the support frame that is located tension adjusting main part both sides, tension adjusting main part includes swinging arms, first dancer roll and second dancer roll, the swinging arms is located the both sides of first dancer roll and second dancer roll, the both sides and the swinging arms rotation of first dancer roll and second dancer roll are connected, the swinging arms outside is equipped with the pivot, the pivot is connected with the support frame rotation, first dancer roll and second dancer roll are located the pivot both sides respectively, the support frame inboard is equipped with the buffer block, the swinging arms outer wall can with buffer block inner wall contact or break away from the buffer block.

The buffer block inner wall is equipped with the baffle, the baffle is located the pivot side for it is rotatory spacing to swing arm.

The baffle side is equipped with the blotter, the swinging arms can butt or break away from the blotter.

One side of the buffer block, which faces the direction of the swinging rod, is an inclined plane, and the buffer block is made of rubber.

The first regulating roller can move close to or far away from the second regulating roller, the swinging rod comprises a guide groove, two ends of the first regulating roller are rotationally connected with sliding blocks, and the sliding blocks can drive the first regulating roller to move along the guide groove.

The guide grooves of the two swinging rods are respectively connected with a screw rod and a guide rod, the sliding blocks positioned at the two ends of the first adjusting roller penetrate through the screw rods and the guide rods respectively, the sliding blocks are in threaded connection with the screw rods, and the sliding blocks can be driven to move by rotating the screw rods.

The end part of the swing rod, which is positioned in the guide groove, is connected with an end cover, the guide rod is connected with the end cover, and the lead screw penetrates through the end cover and the penetrating end is connected with a hand wheel.

The outside of the swinging rod is provided with scale marks along the direction of the guide groove, the outside of the sliding block is provided with a pointer, and the pointer points to the scale marks.

The support frame includes the arc wall, the axle center and the pivot coincidence of arc wall, the arc wall is run through at second dancer roll both ends, the support frame outside is equipped with two sensors, two the sensor sets up towards the arc wall both ends.

The distance between the first regulating roller and the rotating shaft is larger than that between the second regulating roller and the rotating shaft, and the position of the first regulating roller is lower than that of the second regulating roller.

The beneficial effects of the utility model are as follows:

1. by arranging the first regulating roller, the second regulating roller and the rotating shaft, tension adjustment can be synchronously realized on the parts of the product, which are positioned on the left side and the right side of the tension adjusting main body, so that the tension adjusting reaction is quicker, and the adjustment is more reliable;

2. through setting up the buffer block, can play the brake effect, slow down tension adjustment main part swing speed and stop tension adjustment main part, prevent that tension adjustment main part from rocking back and forth and leading to equipment damage, through setting up the buffer block of rubber material, can enough increase with the frictional force of swinging arms, improve and stop the effect, can also reduce swinging arms wearing and tearing, improve swinging arms's life, through setting up the inclined plane, can play the guide effect.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic illustration of the present utility model in use;

FIG. 4 is a cross-sectional view of the present utility model;

fig. 5 is an enlarged view of fig. 4 at B.

In the figure: 1. a support frame; 11. an arc-shaped groove; 2. a swinging rod; 21. a rotating shaft; 22. a guide groove; 23. a screw rod; 24. a guide rod; 25. scale marks; 3. a first dancer roll; 4. a second regulating roller; 5. an end cap; 6. a slide block; 61. a pointer; 7. a buffer block; 71. a baffle; 72. a cushion pad; 8. a sensor; 9. and a hand wheel.

Detailed Description

The utility model is further described with reference to the drawings and detailed description which follow:

in the description of the present specification, the azimuth or positional relationship indicated by the terms "upper", "lower", "left", "right", etc., are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or unit referred to must have a specific direction, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

As shown in fig. 1 to 5, a tension adjusting mechanism comprises a tension adjusting main body and supporting frames 1 positioned at two sides of the tension adjusting main body, wherein the tension adjusting main body comprises a swinging rod 2, a first adjusting roller 3 and a second adjusting roller 4, the swinging rod 2 is positioned at two sides of the first adjusting roller 3 and the second adjusting roller 4, two sides of the first adjusting roller 3 and the second adjusting roller 4 are rotatably connected with the swinging rod 2, the swinging rod 2 is connected with the second adjusting roller 4 through bearings, a rotating shaft 21 is arranged at the outer side of the swinging rod 2, the rotating shaft 21 is rotatably connected with the supporting frames 1, the first adjusting roller 3 and the second adjusting roller 4 are respectively positioned at two sides of the rotating shaft 21, the distance between the first adjusting roller 3 and the rotating shaft 21 is larger than the distance between the second adjusting roller 4 and the rotating shaft 21, and the position of the first adjusting roller 3 is lower than that of the second adjusting roller 4;

as shown in fig. 3, when the product is conveyed from left to right through the tension adjusting body, the first adjusting roller 3 is located on the upper surface of the product, the second adjusting roller 4 is located on the lower surface of the product, the tension adjusting body is inclined leftwards integrally and forms an acute angle with the ground, when the left part of the product located on the tension adjusting body is relaxed, the first adjusting roller 3 is firstly acted by gravity to rotate anticlockwise by taking the rotating shaft 21 as a rotating point, the position of the first adjusting roller 3 is lowered, the product is tensioned, the second adjusting roller 4 synchronously rotates anticlockwise, the position of the second adjusting roller 4 is raised, the product can be further tensioned, tension adjustment can be carried out on the parts of the product located on the left side and the right side of the tension adjusting body by arranging the first adjusting roller 3, the second adjusting roller 4 and the rotating shaft 21 synchronously, the tension adjusting reaction is enabled to be quicker, and the adjustment is more reliable.

As shown in fig. 1 and fig. 2, the first adjusting roller 3 can move close to or far away from the second adjusting roller 4, specifically, the swinging rod 2 includes a guide groove 22, two ends of the first adjusting roller 3 are rotatably connected with a sliding block 6, two ends of the first adjusting roller 3 are connected with the sliding block 6 through bearings, the sliding block 6 can drive the first adjusting roller 3 to move along the guide groove 22, a screw rod 23 and a guide rod 24 are respectively connected with the guide grooves 22 of the two swinging rods 2, the sliding blocks 6 at two ends of the first adjusting roller 3 respectively penetrate through the screw rod 23 and the guide rod 24, the sliding block 6 is in threaded connection with the screw rod 23, and the rotating screw rod 23 can drive the sliding block 6 to move.

The guide rod 24 can play a role in moving and guiding the sliding block 6, the sliding block 6 can drive the first adjusting roller 3 to move in a lead screw transmission mode, and accordingly tension can be adjusted by the tension adjusting main body, the requirements of conveying different products are met, and the application range is wide.

Further, the swinging rod 2 is located the end connection of guide way 22 and has end cover 5, guide bar 24 is connected with end cover 5, lead screw 23 runs through end cover 5 and wears out the end and be connected with hand wheel 9, rotates hand wheel 9 and can drive lead screw 23 rotation, through manual regulation's mode, not only be convenient for the position control of first dancer roll 3, can also alleviate the weight that swinging rod 2 is located first dancer roll 3 one end, improve tension adjustment's reliability, and can also guarantee that the atress of both sides swinging rod 2 is balanced, prevent that first dancer roll 3 from taking place the slope, improve tension adjustment main part's structural reliability.

Preferably, the outer side of the swinging rod 2 is provided with a scale mark 25 along the direction of the guide groove 22, the outer side of the sliding block 6 is provided with a pointer 61, the pointer 61 points to the scale mark 25, when the sliding block 6 moves, the moving distance of the sliding block 6 and the position of the first regulating roller 3 can be clearly obtained through the pointer 61 and the scale mark 25, when different products are switched, the position of the first regulating roller 3 can be directly regulated according to records, tension debugging is not needed, and the working efficiency is greatly improved.

As shown in fig. 1, fig. 3 and fig. 4, the inside buffer block 7 that is equipped with of support frame 1, buffer block 7 is rubber material, one side of buffer block 7 towards swinging rod 2 direction is the inclined plane, swinging rod 2 outer wall can with buffer block 7 inner wall contact or break away from buffer block 7, concretely, be close-fitting when swinging rod 2 outer wall and buffer block 7 inner wall contact, when the product takes place to fracture or suddenly relax in the conveying process, the tension control main part receives the gravity effect and swiftly swings anticlockwise, in anticlockwise swing, swinging rod 2 outside can with buffer block 7 inner wall contact, through the frictional force of swinging rod 2 and buffer block 7, can reduce the speed of tension control main part anticlockwise swing and make tension control main part stop moving, through setting up buffer block 7, can play the effect of slowing down tension control main part swing speed and stopping tension control main part, prevent that tension control main part from making a round trip to rock and leading to equipment damage, through setting up buffer block 7 of rubber material, can increase the frictional force with swinging rod 2, improve stopping effect, can also reduce swinging rod 2, improve the wearing and tearing, setting up and guiding function through the inclined plane.

Preferably, the inner wall of the buffer block 7 is provided with a baffle 71, the baffle 71 is located on the side surface of the rotating shaft 21 and is used for limiting the rotation of the swinging rod 2, specifically, the side surface of the baffle 71 is provided with a buffer pad 72, the swinging rod 2 can be abutted against or separated from the buffer pad 72, the baffle 71 is made of hard material and is used for supporting the buffer pad 72, the buffer pad 72 is made of rubber and is used for stopping the swinging rod 2 from swinging, as shown in fig. 3, the baffle 71 and the buffer pad 72 are located on the right side of the rotating shaft 21, when the swinging rod 2 is arranged in the vertical direction, the side surface of the swinging rod 2 can be abutted against the buffer pad 72 just, and the swinging of the tension adjusting body can be limited by arranging the baffle 71 and the buffer pad 72, so that the braking effect is further improved.

Further, the support frame 1 includes arc groove 11, the axle center and the pivot 21 coincidence of arc groove 11, arc groove 11 is run through at second dancer roll 4 both ends, the support frame 1 outside is equipped with two sensors 8, two sensor 8 sets up towards arc groove 11 both ends.

As shown in fig. 1, when the tension adjusting body swings, two ends of the second adjusting roller 4 can move in the arc-shaped groove 11, if the tension of a product is too high in the conveying process, the second adjusting roller 4 can move towards the inductor 8 positioned on the right side, and when the end part of the second adjusting roller 4 is positioned in front of the inductor 8, equipment alarm can be triggered to remind an operator to view the situation in time; when the product is too little in the conveying process tension, then second dancer roll 4 can remove towards being located left inductor 8, when the tip of second dancer roll 4 is located the place ahead of this inductor 8, can trigger equipment warning, reminds the operating personnel in time to look over the condition, through above-mentioned design for the operating personnel can in time learn the too loose or too tight condition of product in the conveying process, thereby in time look over and adjust the conveying of product, the effectual conveying quality that has improved.

The cooperation relationship between the structural components and each component of the utility model is not within the protection scope of the utility model, the working logic relationship between the sensor 8 and the device is not within the protection scope of the utility model, the sensor 8 is an infrared sensor, the sensor 8 is the prior art, and the technology of sensing the movement range of the tension adjusting main body through the infrared sensor is also the conventional technology.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. A tension adjustment mechanism, characterized in that: including tension adjustment main part and support frame (1) that are located tension adjustment main part both sides, tension adjustment main part includes swinging arms (2), first dancer roll (3) and second dancer roll (4), swinging arms (2) are located the both sides of first dancer roll (3) and second dancer roll (4), the both sides and the swinging arms (2) rotation of first dancer roll (3) and second dancer roll (4) are connected, swinging arms (2) outside is equipped with pivot (21), pivot (21) are connected with support frame (1) rotation, first dancer roll (3) and second dancer roll (4) are located pivot (21) both sides respectively, support frame (1) inboard is equipped with buffer block (7), swinging arms (2) outer wall can with buffer block (7) inner wall contact or break away from buffer block (7).

2. A tension adjustment mechanism as recited in claim 1, wherein: the inner wall of the buffer block (7) is provided with a baffle (71), and the baffle (71) is positioned on the side surface of the rotating shaft (21) and used for limiting the rotation of the swinging rod (2).

3. A tension adjustment mechanism as recited in claim 2, wherein: the side of the baffle (71) is provided with a buffer pad (72), and the swinging rod (2) can be abutted against or separated from the buffer pad (72).

4. A tension adjustment mechanism as recited in claim 1, wherein: the buffer block (7) is inclined towards one side of the swinging rod (2), and the buffer block (7) is made of rubber.

5. A tension adjustment mechanism as recited in claim 1, wherein: the first regulating roller (3) can move to be close to or far away from the second regulating roller (4), the swinging rod (2) comprises a guide groove (22), two ends of the first regulating roller (3) are rotationally connected with sliding blocks (6), and the sliding blocks (6) can drive the first regulating roller (3) to move along the guide groove (22).

6. A tension adjustment mechanism as recited in claim 5, wherein: the guide grooves (22) of the two swinging rods (2) are respectively connected with a screw rod (23) and a guide rod (24), the sliding blocks (6) positioned at the two ends of the first regulating roller (3) respectively penetrate through the screw rods (23) and the guide rods (24), the sliding blocks (6) are in threaded connection with the screw rods (23), and the sliding blocks (6) can be driven to move by rotating the screw rods (23).

7. A tension adjustment mechanism as recited in claim 6, wherein: the end part of the swinging rod (2) located in the guide groove (22) is connected with an end cover (5), the guide rod (24) is connected with the end cover (5), and the screw rod (23) penetrates through the end cover (5) and the penetrating end is connected with a hand wheel (9).

8. A tension adjustment mechanism as recited in claim 6, wherein: the outer side of the swinging rod (2) is provided with scale marks (25) along the direction of the guide groove (22), the outer side of the sliding block (6) is provided with a pointer (61), and the pointer (61) points to the scale marks (25).

9. A tension adjustment mechanism as recited in claim 1, wherein: the support frame (1) comprises an arc-shaped groove (11), the axle center of the arc-shaped groove (11) is coincident with a rotating shaft (21), two ends of the second regulating roller (4) penetrate through the arc-shaped groove (11), two sensors (8) are arranged on the outer side of the support frame (1), and the two sensors (8) are arranged towards two ends of the arc-shaped groove (11).

10. A tension adjustment mechanism as recited in claim 1, wherein: the distance between the first regulating roller (3) and the rotating shaft (21) is larger than the distance between the second regulating roller (4) and the rotating shaft (21), and the position of the first regulating roller (3) is lower than that of the second regulating roller (4).