CN220265978U - Leaf spring formula tensioner device - Google Patents

Abstract

The utility model relates to a plate spring type tensioner device, which comprises an adsorption pipe for adsorbing flying cotton, end parts arranged at two ends of the adsorption pipe, a rod body arranged between the end parts, an elastic piece for elastically supporting a grid ring, a block part for spacing the elastic piece and a shaft body for conveying the grid ring, wherein the block part is arranged at the upper end of the adsorption pipe; the shaft body is rotatably arranged between the end parts; the elastic piece and the block part are sleeved on the rod body at intervals; one side of the elastic piece is arranged around the rod body; the other side of the elastic piece extends to the grid ring and is bent to be attached to the grid ring. The problem of in the current scheme structure occupy the space of negative pressure pipe subassembly more, can't provide continuous tension when the cooperation is blocked is solved.

Description

Leaf spring formula tensioner device

Technical Field

The utility model relates to the field of textile machinery, in particular to a plate spring type tensioner device.

Background

The negative pressure pipe assembly is one of the components of the compact spinning mechanism, the grid ring is sleeved on the negative pressure pipe assembly and moves along the negative pressure pipe assembly, and the negative pressure pipe assembly completes the adsorption of flying flocks in yarns in the moving process of the grid ring. Yarn contacts the grid ring in the moving process, and the flying cotton wool of the yarn is adsorbed on the grid ring through the adsorption of the negative pressure pipe component.

The tension mechanism of the spring structure adopted by the traditional negative pressure pipe assembly provides tension for the grid ring, the tension frame moves outwards through the elasticity provided by the spring, and the tension frame provides tension for the grid ring.

But the tension frame is pushed to move outwards by the spring structure to provide tension, more parts of the structure are needed, and the parts are matched to provide tension, so that the structure occupies more space of the negative pressure pipe assembly. And when engaged with a click, it is unable to provide continuous tension. How to solve this problem becomes important.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a leaf spring type tensioner device, so as to solve the problem that the structure of the prior art occupies more space of the negative pressure tube assembly, and cannot provide continuous tension when being matched with a clamping device.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a leaf spring type tensioner device;

the device comprises an adsorption pipe for adsorbing flying cotton, end parts arranged at two ends of the adsorption pipe, a rod body arranged between the end parts, an elastic piece for elastically supporting the grid ring, a block part for spacing the elastic piece and a shaft body for conveying the grid ring; the shaft body is rotatably arranged between the end parts; the elastic piece and the block part are sleeved on the rod body at intervals; one side of the elastic piece is arranged around the rod body; the other side of the elastic piece extends to the grid ring and is bent to be attached to the grid ring.

The further technical scheme is as follows: the adsorption tube is communicated with a connecting tube; the connecting pipe is connected with an air suction source; the adsorption pipes are connected with adsorption plates in a parallel buckling manner; the adsorption plate is provided with an adsorption port in an extending and inclining manner along the moving direction of the grid ring; the adsorption tubes are provided with adsorption positions in parallel; the adsorption position is communicated with the adsorption port.

The further technical scheme is as follows: the rod body is provided with an installation position; the elastic piece comprises a first elastic part, a second elastic part and a third elastic part, wherein the first elastic part elastically supports the grid ring, the second elastic part is arranged around the rod body, and the third elastic part is arranged in the installation position; the first elastic part extends towards the grid ring and is bent to be attached to the grid ring; the third elastic part is bent along the installation position; the second elastic part is respectively connected with the first elastic part and the third elastic part.

The further technical scheme is as follows: extension sheets are arranged on the second elastic part and the third elastic part at positions close to the block part; the extension piece is inserted between the block part and the rod body; the first elastic portion abuts against the block portion at a position close to the second elastic portion.

The further technical scheme is as follows: a limiting piece for limiting the grid ring is arranged on one surface of the first elastic part, which is close to the grid ring; the limiting piece comprises a first limiting part gradually bending and extending towards the grid ring and a second limiting part gradually bending and extending away from the grid ring; the position where the first limiting part and the second limiting part are in transitional connection with each other contacts the grid ring.

The further technical scheme is as follows: the first elastic part is provided with an opening near the second elastic part; the opening narrows the first elastic portion gradually.

The further technical scheme is as follows: the end part comprises a central part, a reinforcing part arranged at the central part, a sealing part for sealing the adsorption tube and a fixing part for fixing the rod body; the sealing part and the fixing part are respectively arranged at two sides of the reinforcing part; the shaft body is rotatably disposed within the central portion.

The further technical scheme is as follows: the shaft body is provided with grains; the grid ring contacts the grain; the elastic piece is a plate spring; the rod body, the elastic piece and/or the block part are made of stainless steel.

The further technical scheme is as follows: the support piece is used for supporting the rod body; one end of the supporting piece is connected to the adsorption tube; the other end of the support piece abuts against the block portion.

The further technical scheme is as follows: the device also comprises a convex part; the convex part is arranged on the elastic piece.

Compared with the prior art, the utility model has the following beneficial technical effects: (1) The grid ring is in a tensioning state all the time by forming outward tension on the grid ring through the elastic piece, and meanwhile, the elastic piece extends outwards, so that a space exists between the grid ring and the plate spring type tensioner device, the grid ring can be stably transited to the adsorption pipe, and the adsorption of the flying batting is ensured; tension can be formed on the grid ring through the elasticity of the elastic piece, a tension mechanism of a traditional spring structure is canceled, friction among tension mechanisms of more parts is avoided, and therefore the tension effect is affected; the elastic pieces and the block parts are distributed at intervals, and the block parts with different lengths are replaced, so that the interval between adjacent elastic pieces can be adjusted to adapt to different installation requirements; (2) Through changing different adsorption plates, the flying cotton wool can be adsorbed by adopting adsorption ports with different shapes; the suction source is connected through the connecting pipe, so that negative pressure adsorption is formed at the adsorption port, flying cotton wool enters the adsorption pipe through the adsorption port and the adsorption position, and is discharged through the connecting pipe, the adsorption port is formed along the moving direction of the grid ring, and the adsorption port cannot scratch the grid ring; meanwhile, the adsorption port is obliquely arranged, so that the transverse adsorption range of the adsorption port is increased; (3) The elastic piece is arranged around the rod body through the second elastic part, so that the elastic piece is connected to the rod body, and then is arranged in the installation position through the third elastic part, so that the elastic piece is prevented from rotating around the rod body, the supporting position of the first elastic part is fixed, and the first elastic part can continuously provide tension for the grid ring; (4) The friction force among the elastic piece, the block part and the rod body is increased by the contact of the extension piece with the block part and the rod body, so that the positions of the elastic piece and the block part, which are close to each other, are firmly fixed; when the elastic piece and the block part are mutually arranged at intervals, the first elastic part extends outwards, the block part can be abutted against the position of the first elastic part, which is close to the second elastic part, and the first elastic part limits the position of the block part; (5) The first limiting part and the second limiting part are bent and extended, so that the grid ring is always limited at the position where the first limiting part and the second limiting part are in transitional connection with each other, the positions where the first limiting part and the second limiting part contact the grid ring are fewer, the first limiting part and the second limiting part can not only finish limiting the grid ring, but also other positions of the first limiting part and the second limiting part can not interfere the movement of the grid ring; (6) The width of the first elastic part is narrowed, so that the elastic range of the first elastic part is increased, the bearing range of the first elastic part is increased, the first elastic part cannot easily generate plastic deformation, and the service life of the first elastic part is prolonged; (7) The sealing part and the fixing part are supported and fixed through the reinforcing part, so that the sealing part can continuously seal the adsorption pipe, the fixing part can continuously limit the fixing rod body, and the plate spring type tensioner device can continuously adsorb the flying cotton wool and provide continuous tension for the grid ring; (8) One end of the supporting part is connected with the supporting block, and the other end of the supporting part is provided with a supporting groove; the block part is arranged in the supporting groove; the supporting part is used for supporting the block part, so that the supporting part is used for supporting the rod body, the structural strength of the rod body is improved, the elastic piece can continuously form elastic support for the grid ring, and the elastic piece cannot displace; (9) The convex part is arranged on one surface of the first elastic part in the bending direction; the convex part is arranged on the elastic piece in a stamping forming mode; the convex part plays a role in reinforcing the structure of the elastic piece; when the elastic piece is twisted upwards or downwards in the left-right direction, the elastic piece is supported by the convex parts, so that the twisting of the elastic piece is limited, the elastic piece is always smooth and has no deformation, and the service life of the elastic piece is prolonged.

Drawings

Fig. 1 is a front view showing a construction of a leaf spring type tensioner device according to a first embodiment of the present utility model.

Fig. 2 shows a schematic structural view of a leaf spring type tensioner device according to a first embodiment of the present utility model.

Fig. 3 is a left-side view showing a construction of a leaf spring type tensioner device of a first embodiment of the present utility model.

Fig. 4 shows a left-side view of the adsorption tube according to the first embodiment of the present utility model.

Fig. 5 shows a schematic structural view of an end portion of a first embodiment of the present utility model.

Fig. 6 is a left-side view of the elastic member according to the first embodiment of the present utility model.

Fig. 7 shows a schematic structural view of the elastic member according to the first embodiment of the present utility model.

Fig. 8 is a left-side view of a first embodiment of the present utility model.

Fig. 9 is a front view showing a construction of a leaf spring type tensioner device according to a second embodiment of the present utility model.

Fig. 10 is a left-side view of a supporting member according to a second embodiment of the present utility model.

Fig. 11 is a left-side view of a structure of a spring member according to a second embodiment of the present utility model.

The reference numerals in the drawings: 1. an adsorption tube; 11. a connecting pipe; 12. an adsorption plate; 121. a bending portion; 13. an adsorption port; 14. an adsorption site; 2. an end portion; 21. a center portion; 22. a reinforcing part; 23. a sealing part; 24. a fixing part; 3. a rod body; 31. a mounting position; 4. an elastic member; 41. a first elastic portion; 42. a second elastic part; 43. a third elastic portion; 44. an extension piece; 45. limiting slices; 451. a first restriction portion; 452. a second restriction portion; 46. an opening; 5. a block section; 6. a shaft body; 61. lines; 7. a support; 71. a support block; 72. a support part; 73. a fastener; 74. a support groove; 8. a convex part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the following more detailed description of the device according to the present utility model is given with reference to the accompanying drawings and the detailed description. The advantages and features of the present utility model will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the utility model. For a better understanding of the utility model with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that any modifications, changes in the proportions, or adjustments of the sizes of structures, proportions, or otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or essential characteristics thereof.

First embodiment:

fig. 1 is a front view showing a construction of a leaf spring type tensioner device according to a first embodiment of the present utility model. Fig. 2 shows a schematic structural view of a leaf spring type tensioner device according to a first embodiment of the present utility model. Fig. 3 is a left-side view showing a construction of a leaf spring type tensioner device of a first embodiment of the present utility model. Fig. 4 shows a left-side view of the adsorption tube according to the first embodiment of the present utility model. Fig. 5 shows a schematic structural view of an end portion of a first embodiment of the present utility model. Fig. 6 is a left-side view of the elastic member according to the first embodiment of the present utility model. Fig. 7 shows a schematic structural view of the elastic member according to the first embodiment of the present utility model. Fig. 8 is a left-side view of a first embodiment of the present utility model. The present utility model discloses a leaf spring type tensioner device as shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8. The direction of X in the figure is the upper end of the structural schematic diagram of the utility model, and the direction of Y in the figure is the right end of the structural schematic diagram of the utility model.

The plate spring type tensioner device comprises an adsorption tube 1 for adsorbing flying cotton, end parts 2 arranged at two ends of the adsorption tube 1, a rod body 3 arranged between the end parts 2, an elastic piece 4 for elastically supporting the grid ring, a block part 5 for spacing the elastic piece 4 and a shaft body 6 for conveying the grid ring. The shaft body 6 is rotatably disposed between the end portions 2. The elastic piece 4 and the block part 5 are mutually sleeved on the rod body 3 at intervals. One side of the elastic member 4 is arranged around the rod body 3. The other side of the elastic piece 4 extends to the grid ring and bends to fit the grid ring.

The adsorption tube 1 is arranged in the left-right direction. Preferably, the ends 2 are in two groups. The end portions 2 are respectively arranged at the left end and the right end of the adsorption tube 1. The rod body 3 is disposed between the end portions 2 in the left-right direction. Preferably, the elastic members 4 are provided in a plurality of groups. Preferably, the block portions 5 are provided in plural groups. The elastic members 4 and the block portions 5 are arranged at intervals in the left-right direction. The shaft body 6 is rotatably provided between the end portions 2 in the left-right direction. One side of the elastic member 4 is disposed around the outer surface of the rod body 3. The other side of the elastic piece 4 extends to the grid ring and is bent upwards to be attached to the grid ring.

The grid ring is outwards tensioned through the elastic piece 4, so that the grid ring is always in a tensioned state, meanwhile, the elastic piece 4 extends outwards, a space exists between the grid ring and the plate spring type tensioner device, the grid ring can be stably transited to the adsorption tube 1, and the adsorption of flying flocks is guaranteed. Tension can be formed on the grid ring through the elasticity of the elastic piece 4, the tension mechanism of the traditional spring structure is cancelled, friction between the tension mechanisms of more parts is avoided, and therefore the tension effect is affected. The elastic pieces 4 and the block parts 5 are distributed at intervals, and the interval between the adjacent elastic pieces 4 can be adjusted by replacing the block parts 5 with different lengths. To accommodate different installation requirements. Or the elastic piece 4 can be replaced, so that the elastic piece 4 can keep good elastic force.

The elastic force can be provided through the elastic piece 4, the tension mechanism of the traditional spring structure is cancelled, the occupied positions of the rod body 3, the elastic piece 4 and the block part 5 are fewer, a gap exists between the rod body 3 and the shaft body 6, flying cotton wool can flow out through the gap and cannot be accumulated in the plate spring type tensioner device, and therefore the periodic interval time for cleaning the flying cotton wool periodically is prolonged. The flying cotton can flow out rapidly, so that the yarn is prevented from being influenced by the flying cotton, and meanwhile, continuous elastic support is provided through the elastic piece 4, so that the quality of the yarn is ensured, and defects of subsequent fabrics are reduced.

The elastic member 4 is a plate spring.

The rod body 3, the elastic piece 4 and/or the block part 5 are made of stainless steel.

The elastic force provided by the plate spring is balanced by the elastic piece 4, so that uneven stress can not occur when the grid ring is in a tensioning state, and the service life of the grid ring is prolonged.

Compare traditional spring construction's tension mechanism, be equipped with through the mode that elastic component 4 and the mutual spacer sleeve of piece portion 5 are established on the body of rod 3 between body of rod 3, elastic component 4 and the piece portion 5, can be quick dismantlement and installation between body of rod 3, elastic component 4 and the piece portion 5.

The adsorption tube 1 is communicated with a connecting tube 11. The connecting pipe 11 is connected with a suction source. The adsorption pipes 1 are connected with adsorption plates 12 in a parallel and buckled manner. The adsorption plate 12 is provided with an adsorption port 13 extending and inclining along the moving direction of the grid ring. The adsorption tubes 1 are provided with adsorption sites 14 in parallel. The adsorption position 14 is communicated with the adsorption port 13.

The connection pipe 11 communicates with the front surface of the adsorption pipe 1. Preferably, the connection pipes 11 are two groups. The connection pipes 11 are distributed in the left-right direction. The adsorption sites 14 are arranged on the front surface of the adsorption tube 1 in parallel in the left-right direction. The upper and lower sides of the front surface of the adsorption tube 1 are provided with first bulges. Both sides of the adsorption plate 12 are bent to form bent portions 121. When the adsorption plate 12 is fastened to the adsorption tube 1, the bending portion 121 buckles the first protrusion of the adsorption tube 1.

By changing different adsorption plates 12, the flying cotton wool can be adsorbed by using adsorption ports 13 of different shapes. The suction source is connected through the connecting pipe 11, so that negative pressure adsorption is formed at the adsorption port 13, and the flying cotton wool enters the adsorption pipe 1 through the adsorption port 13 and the adsorption position 14 and is discharged through the connecting pipe 11. The adsorption port 13 is arranged along the moving direction of the grid ring, and the adsorption port 13 does not scratch the grid ring. Meanwhile, the adsorption port 13 is obliquely arranged, so that the transverse adsorption range of the adsorption port 13 is increased.

The rod body 3 is formed with a mounting position 31. The elastic member 4 includes a first elastic portion 41 elastically supporting the mesh ring, a second elastic portion 42 provided around the rod body 3, and a third elastic portion 43 disposed in the installation site 31. The first elastic portion 41 extends toward the mesh ring and is bent to fit the mesh ring. The third elastic portion 43 is bent along the mounting position 31. The second elastic portion 42 connects the first elastic portion 41 and the third elastic portion 43, respectively.

Mounting locations 31 are formed on the outer surface of the rod body 3 in the left-right direction. The first elastic portion 41 is provided in the up-down direction. The rear end of the second elastic portion 42 is connected to the first elastic portion 41. The front end of the second elastic portion 42 is connected to the third elastic portion 43. The upper end of the first elastic portion 41 is bent forward. The third elastic portion 43 is bent along the surface of the mounting position 31.

When the elastic member 4 is mounted on the rod body 3, the third elastic portion 43 is disposed in the mounting position 31, the elastic member 4 is pushed left and right, the third elastic portion 43 slides along the mounting position 31, and the second elastic portion 42 slides along the outer surface of the rod body 3, so that the position of the elastic member 4 is adjusted. After the elastic member 4 is installed, the rod body 3 is sleeved with the block part 5, so that the elastic member 4 is installed at intervals.

The elastic piece 4 is arranged around the rod body 3 through the second elastic part 42, so that the elastic piece 4 is connected to the rod body 3, and then is placed in the mounting position 31 through the third elastic part 43, so that the elastic piece 4 is prevented from rotating around the rod body 3, the supporting position of the first elastic part 41 is fixed, and the first elastic part 41 can continuously provide tension for the grid ring.

The second elastic portion 42 and the third elastic portion 43 are provided with extension pieces 44 at positions close to the block portion 5. The extension piece 44 is interposed between the block portion 5 and the rod body 3. The first elastic portion 41 abuts against the block portion 5 at a position close to the second elastic portion 42.

The extension pieces 44 are provided on the left and right sides of the second elastic portion 42 and the left and right sides of the third elastic portion 43, respectively. After the elastic member 4 and the block portion 5 are mounted on the rod body 3, the extension piece 44 is inserted between the inner surface of the block portion 5 and the outer surface of the rod body 3. The left and right sides of the first elastic portion 41 near the position of the second elastic portion 42 abut against the end surfaces of the left and right sides of the block portion 5.

By the contact of the extension piece 44 with the block part 5 and the rod body 3, the friction force between the elastic piece 4, the block part 5 and the rod body 3 is increased, so that the positions of the elastic piece 4 and the block part 5 close to each other are firmly fixed with each other. When the elastic member 4 and the block 5 are mounted at a distance from each other, since the first elastic portion 41 extends outward, the block 5 abuts against the first elastic portion 41 at a position close to the second elastic portion 42, and the first elastic portion 41 restricts the position of the block 5.

The left and right ends of the block 5 may be notched. When the block 5 abuts against the first elastic portion 41, the first elastic portion 41 is placed in the notch, and the block 5 limits the first elastic portion 41, so that the elastic member 4 and the block 5 are firmly mounted on the rod body 3.

The first elastic portion 41 is provided with a restriction piece 45 for restricting the mesh ring on a surface thereof close to the mesh ring. The restriction piece 45 includes a first restriction portion 451 that gradually extends in a curved direction of the mesh loop and a second restriction portion 452 that gradually extends in a curved direction away from the mesh loop. The first restriction 451 and the second restriction 452 contact the mesh ring at a position where they are transitionally connected to each other.

The restricting pieces 45 are provided on the left and right sides of the first elastic portion 41, respectively. The restricting piece 45 extends rearward. The first restriction 451 tapers inwardly. The second restriction 452 gradually extends outward. Preferably, the first restriction portion 451 has a circular arc shape. Preferably, the second restriction portion 452 is circular arc-shaped. The bending amplitude of the first restriction portion 451 is larger than that of the second restriction portion 452.

The first limiting part 451 and the second limiting part 452 are bent and extended, so that the grid ring is always limited at the position where the first limiting part 451 and the second limiting part 452 are in transitional connection with each other, the positions where the first limiting part 451 and the second limiting part 452 contact the grid ring are fewer, the first limiting part 451 and the second limiting part 452 can complete limiting of the grid ring, and other positions of the first limiting part 451 and the second limiting part 452 do not interfere with movement of the grid ring.

The first elastic portion 41 is provided with an opening 46 near the second elastic portion 42. The opening 46 gradually narrows the first elastic portion 41.

The openings 46 are formed on the left and right sides of the first elastic portion 41 near the second elastic portion 42. The opening 46 gradually narrows the first elastic portion 41 at a position close to the second elastic portion 42.

By narrowing the width of the first elastic portion 41, the elastic range of the first elastic portion 41 is increased, so that the range of the first elastic portion 41 capable of bearing force is increased, the first elastic portion 41 cannot be easily subjected to plastic deformation, and the service life of the first elastic portion 41 is prolonged.

The shaft body 6 is provided with lines 61. The mesh ring contacts the ridge 61.

Preferably, the lines 61 are in multiple sets. The lines 61 are distributed on the outer surface of the shaft body 6 in the left-right direction. The grid loops contact the texture 61 as they move along the leaf spring type tensioner device. The lines 61 increase the friction between the shaft body 6 and the grid ring, so that the grid ring can be driven to move smoothly when the shaft body 6 rotates.

The end portion 2 includes a central portion 21, a reinforcing portion 22 provided at the central portion 21, a sealing portion 23 sealing the suction pipe 1, and a fixing portion 24 fixing the rod body 3. The sealing portion 23 and the fixing portion 24 are provided on both sides of the reinforcing portion 22, respectively. The shaft body 6 is rotatably disposed in the central portion 21.

Bearings are arranged at the left end and the right end of the shaft body 6. The bearing is placed in the central portion 21. The inner ring of the bearing is connected with the shaft body 6. The outer ring of the bearing is connected to the central portion 21. One side of the reinforcing portion 22 is connected to the central portion 21. The sealing portion 23 and the fixing portion 24 are connected to the other end of the reinforcing portion 22. The adsorption tube 1 has a through structure in the left-right direction. The sealing portions 23 seal the left and right ends of the adsorption tube 1. The fixing portion 24 is provided with a second protrusion. When the rod 3 is mounted on the fixing portion 24, the second protrusion is disposed in the mounting position 31 to limit the rod 3 from rotating along the fixing portion 24.

The supporting and fixing of the sealing part 23 and the fixing part 24 are completed through the reinforcing part 22, so that the sealing part 23 can continuously seal the adsorption tube 1, the fixing part 24 can continuously limit the fixing rod body 3, and the plate spring type tensioner device can continuously adsorb the flying cotton and provide continuous tension for the grid ring.

The leaf spring tensioner device further comprises a support 7 supporting the rod body 3. One end of the supporting member 7 is connected to the adsorption tube 1. The other end of the support 7 abuts against the block portion 5.

The length of the rod body 3 is longer, the end part 2 supports two ends of the rod body 3, but the structural strength of the middle position of the rod body 3 is higher than that of the two ends of the rod body 3. The elastic piece 4 at the middle position of the rod body 3 can displace after being stressed, and the elastic piece 4 can not form continuous elastic support for the grid ring.

Second embodiment:

fig. 9 is a front view showing a construction of a leaf spring type tensioner device according to a second embodiment of the present utility model. Fig. 10 is a left-side view of a supporting member according to a second embodiment of the present utility model. Fig. 11 is a left-side view of a structure of a spring member according to a second embodiment of the present utility model. The second embodiment differs from the first embodiment in that:

the support 7 includes a support block 71 and a support portion 72 provided on the support block 71. The support block 71 is screwed with a fastener 73. The adsorption tube 1 is provided with a chute. The supporting block 71 slides along the chute, and when the supporting block 71 slides to the middle position of the adsorption tube 1, the supporting block 71 stops sliding. At this time, the fastener 73 is tightened, and the fastener 73 fixes the support block 71 in the slide groove.

One end of the supporting portion 72 is connected to the supporting block 71, and the other end of the supporting portion 72 is provided with a supporting groove 74. The block 5 is placed in the support groove 74. Support is formed to the piece portion 5 through supporting part 72 for supporting part 72 accomplishes the support to body of rod 3, has improved the structural strength of body of rod 3, makes elastic component 4 can be continuous form elastic support to the net circle, and elastic component 4 can not take place the displacement.

The leaf spring tensioner device further comprises a protrusion 8. The protruding portion 8 is provided on the elastic member 4.

The protruding portion 8 is provided on one surface of the first elastic portion 41 in the bending direction. The protruding portion 8 is provided on the elastic member 4 by press molding. The protruding portion 8 plays a role in reinforcing the structure of the elastic member 4. When the elastic piece 4 is twisted upwards or downwards in the left-right direction, the elastic piece 4 is supported by the convex part 8, so that the twisting of the elastic piece 4 is limited, the elastic piece 4 is always smooth and has no deformation, and the service life of the elastic piece 4 is prolonged.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A leaf spring tensioner device characterized in that: the device comprises an adsorption pipe (1) for adsorbing flying cotton, end parts (2) arranged at two ends of the adsorption pipe (1), a rod body (3) arranged between the end parts (2), elastic pieces (4) for elastically supporting grid rings, block parts (5) for spacing the elastic pieces (4) and a shaft body (6) for conveying the grid rings; the shaft body (6) is rotatably arranged between the end parts (2); the elastic piece (4) and the block part (5) are sleeved on the rod body (3) at intervals; one side of the elastic piece (4) is arranged around the rod body (3); the other side of the elastic piece (4) extends to the grid ring and is bent to be attached to the grid ring.

2. The leaf spring tensioner device of claim 1 wherein: a connecting pipe (11) is communicated with the adsorption pipe (1); the connecting pipe (11) is connected with an air suction source; an adsorption plate (12) is fastened on the adsorption tube (1) in parallel; an adsorption port (13) is obliquely arranged on the adsorption plate (12) along the moving direction of the grid ring in an extending manner; an adsorption position (14) is arranged on the adsorption tube (1) in parallel; the adsorption position (14) is communicated with the adsorption port (13).

3. The leaf spring tensioner device of claim 2 wherein: the rod body (3) is provided with a mounting position (31); the elastic piece (4) comprises a first elastic part (41) for elastically supporting the grid ring, a second elastic part (42) arranged around the rod body (3) and a third elastic part (43) arranged in the installation position (31); the first elastic part (41) extends towards the grid ring and is bent to be attached to the grid ring; -said third elastic portion (43) is curved along said mounting location (31); the second elastic portion (42) connects the first elastic portion (41) and the third elastic portion (43), respectively.

4. The leaf spring tensioner device of claim 3 wherein: an extension piece (44) is arranged on the second elastic part (42) and the third elastic part (43) at a position close to the block part (5); the extension piece (44) is inserted between the block part (5) and the rod body (3); the first elastic portion (41) abuts against the block portion (5) at a position close to the second elastic portion (42).

5. The leaf spring tensioner device of claim 3 wherein: a limiting piece (45) for limiting the grid ring is arranged on one surface of the first elastic part (41) close to the grid ring; the limiting piece (45) comprises a first limiting part (451) which gradually bends and extends towards the direction of the grid ring and a second limiting part (452) which gradually bends and extends away from the grid ring; the first limiting part (451) and the second limiting part (452) contact the grid ring at the position of the transition connection.

6. The leaf spring tensioner device of claim 3 wherein: an opening (46) is formed in the position, close to the second elastic part (42), of the first elastic part (41); the opening (46) gradually narrows the first elastic portion (41).

7. The leaf spring tensioner device of claim 1 wherein: the end part (2) comprises a central part (21), a reinforcing part (22) arranged on the central part (21), a sealing part (23) for sealing the adsorption tube (1) and a fixing part (24) for fixing the rod body (3); the sealing part (23) and the fixing part (24) are respectively arranged at two sides of the reinforcing part (22); the shaft body (6) is rotatably arranged in the central part (21).

8. The leaf spring tensioner device of claim 1 wherein: the shaft body (6) is provided with grains (61); the grid ring contacts the texture (61); the elastic piece (4) is a plate spring; the rod body (3), the elastic piece (4) and/or the block part (5) are made of stainless steel.

9. The leaf spring tensioner device of claim 1 wherein: the support piece (7) is used for supporting the rod body (3); one end of the supporting piece (7) is connected to the adsorption tube (1); the other end of the supporting piece (7) is abutted against the block part (5).

10. The leaf spring tensioner device of claim 1 wherein: also comprises a convex part (8); the convex part (8) is arranged on the elastic piece (4).