CN216996947U

CN216996947U - Tension adjusting device

Info

Publication number: CN216996947U
Application number: CN202123052407.3U
Authority: CN
Inventors: 叶宗锋; 杨永忠; 邱毅
Original assignee: Suzhou Jieruisi Intelligent Technology Co ltd
Current assignee: Suzhou Jieruisi Intelligent Technology Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-07-19
Anticipated expiration: 2031-12-07

Abstract

The utility model discloses a tension adjusting device which comprises a first mounting seat, wherein one end of the first mounting seat is provided with a roller passing mechanism, the other end of the first mounting seat is provided with a transmission mechanism, and the roller passing mechanism is contacted with an external strip and is driven by the strip to rotate so as to drive the first mounting seat to deflect; drive mechanism includes the pivot with first mount pad fixed connection, overlaps the second mount pad of establishing an at least bearing outside the pivot and fixing bearing, the pivot sets up an at least mounting groove, make a spring take place to deform through drive mechanism when first mount pad takes place to deflect, this deformation power is used for stabilizing the deflection of roller mechanism. According to the tension adjusting device, the volute spiral spring is arranged as a power source to provide the deflection of the over-roller stabilizing mechanism, so that the overall structure is small, the cost is low, and the response speed is high; through setting up the adjustment disk, can adjust the tension in different materials areas, strong adaptability adjusts the convenience.

Description

Tension adjusting device

Technical Field

The utility model relates to the technical field of lithium battery manufacturing equipment, in particular to a tension adjusting device.

Background

In various continuous production lines, various strips, wires and the like are required to be subjected to tension control in the processes of conveying, winding and the like, so that smooth production can be ensured.

For example, in the lithium battery industry, the manufacture of a battery cell requires a winding machine to wind a positive electrode sheet material strip, a negative electrode sheet material strip and a diaphragm material strip to form the battery cell. The quality of the battery cell is directly determined by the control of the tension of the material belt in the winding process, and the quality is also the most important technical parameter for measuring the technical level of the whole winding machine. In order to facilitate the formation of the battery core, the winding needle is usually an elliptical winding needle or a rhombic winding needle, and the material belt is difficult to achieve uniform linear velocity during winding, so that the material belt shakes, and the phenomena of large tension fluctuation and poor winding alignment degree are caused.

The existing tension adjusting device adopts a linear motor, an integrated voice coil motor, an air cylinder assembly and the like to adjust the length of a material belt along with the change of the tension of the material belt so as to achieve the effect of tensioning the material belt. However, the tension adjusting devices have large parts, large occupied space and slow transmission, so that the overall response speed is slow and the tension adjusting devices cannot adapt to the production rhythm.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an adjusting device for controlling the tension of a material belt during winding.

In order to achieve the purpose, the utility model provides a tension adjusting device which comprises a first mounting seat, wherein one end of the first mounting seat is provided with a roller passing mechanism, the other end of the first mounting seat is provided with a transmission mechanism, and the roller passing mechanism is contacted with an external strip and is driven by the strip to rotate so as to drive the first mounting seat to deflect; drive mechanism includes the pivot with first mount pad fixed connection, overlaps the second mount pad of establishing an at least bearing outside the pivot and fixing bearing, the pivot sets up an at least mounting groove, make a spring take place to deform through drive mechanism when first mount pad takes place to deflect, this deformation power is used for stabilizing the deflection of roller mechanism.

In an embodiment of the present invention, the spring is at least one spiral spring.

In an embodiment of the present invention, the second mounting seat is provided with at least one slot, the spiral spring is disposed around the rotating shaft, a fixed end of the spiral spring is inserted into the mounting slot to achieve assembly, and a stressed end of the spiral spring is disposed in the slot.

In an embodiment of the present invention, the second mounting seat includes a fixing seat and an adjusting disc for adjusting a deformation force of the spring, the adjusting disc is sleeved on an outer surface of the spiral spring, and the at least one engaging groove is disposed on the adjusting disc.

In an embodiment of the present invention, the spiral spring is disposed at one end of the rotating shaft; wherein, the stiff end of volute spiral spring inserts the mounting groove in order to realize the equipment, and its atress end sets up in the draw-in groove of adjustment disk.

In an embodiment of the present invention, the spiral spring has two fixed ends respectively and symmetrically disposed in the mounting groove, the two stressed ends are disposed in the two slots, and a connection line of the two slots passes through a center of the rotating shaft.

In an embodiment of the present invention, the adjusting plate is fixed to the fixing base, a plurality of slots are uniformly distributed on the adjusting plate, the fixed end of the spiral spring is inserted into the mounting slot, and the stressed end of the spiral spring is inserted into different slots to adjust the deformation force of the spiral spring.

In an embodiment of the present invention, the adjusting plate and the fixing base can rotate relative to each other, at least one adjusting knob is disposed on an outer circumferential surface of the adjusting plate, an arc-shaped opening matched with the adjusting knob is formed in the fixing base, the adjusting knob extends out of the fixing base through the arc-shaped opening and can be shifted in the arc-shaped opening, and the adjusting plate and the fixing base are locked by a locking mechanism.

In an embodiment of the present invention, the locking mechanism includes a plurality of threaded grooves formed on an outer circumferential surface of the adjustment disc, at least one threaded through hole formed on an outer surface of the fixing base and matching with the threaded grooves, and screws for fixing the threaded through hole and the threaded grooves, and the power of the volute spiral spring is adjusted by fixing the threaded through hole and different threaded grooves.

In an embodiment of the utility model, the roller passing mechanism comprises two roller passing shafts, one end of each roller passing shaft is fixedly connected with the first mounting seat, the other end of each roller passing shaft is provided with a roller passing end cover, and each roller passing shaft is sleeved with a roller.

In conclusion, the tension adjusting device provided by the utility model has the advantages that the volute spiral spring is arranged as a power source to provide the deflection of the over-roller stabilizing mechanism, so that the overall structure is small, the cost is low, and the response speed is high; through setting up the adjustment disk, can adjust the tension in different material areas, strong adaptability adjusts the convenience.

Drawings

FIG. 1 is a partial cross-sectional view of a first embodiment of the present invention;

FIG. 2 is a left side cross-sectional view of a first embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of a second embodiment of the present invention;

FIG. 4 is a left side sectional view of a second embodiment of the present invention;

FIG. 5 is a block diagram of a third embodiment of the present invention;

FIG. 6 is a partially enlarged view of a third embodiment of the present invention;

FIG. 7 is another block diagram of a third embodiment of the present invention;

FIG. 8 is a structural diagram of a fixing base in a third embodiment of the present invention;

FIG. 9 is a tension adjustment process diagram of a third embodiment of the present invention;

fig. 10 is another tension adjustment process diagram of the third embodiment of the present invention.

In the figure, M, material roll; n, a tension buffer device; o, a tension adjusting device; p, winding a needle;

1. a first mounting seat; 11. a limiting block;

2. a roller passing mechanism; 21. a roll-over end cap; 22. passing through a roll shaft; 23. rolling;

3. a transmission mechanism; 31. a rotating shaft; 311. mounting grooves; 32. a bearing; 33. a second mounting seat; 34. a card slot; 35. a fixed seat; 351. a threaded through hole; 352. an arc-shaped limiting groove; 36. an adjusting disk; 361. a threaded groove; 37. an adjusting knob; 38. an arc-shaped opening;

4. a spring; 41. a volute spiral spring;

5. a third mounting seat; 6. and (6) end covers.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

The tension adjusting device of the utility model controls a strip or a wire. Tension adjusting device adjusts the tension in material area when being used for electric core to make in this embodiment, because winding needle P is oval or rhombus, when convoluteing, the condition that the periodic elasticity will appear in the material area that is close winding needle P, so, the position that is close winding needle P just need set up a tension adjusting device, in time stabilizes the tension in material area.

As shown in fig. 1, a tension adjusting device according to a first embodiment of the present invention includes a first mounting base 1, wherein one end of the first mounting base 1 is connected to a roller mechanism 2, the other end of the first mounting base is connected to a transmission mechanism 3, and the transmission mechanism 3 is connected to a spring 4. The roller mechanism 2 drives the first mounting seat 1 to rotate under the action of external force, the first mounting seat 1 applies external force to the spring 4 to deform the spring, and restoring force generated by the spring 4 due to deformation counteracts the first mounting seat 1 to stabilize the external acting force applied to the roller mechanism 2.

Roller mechanism 2 includes that one end and 1 fixed connection, the other end set up two of roller end cover 21 and cross roller shaft 22, and every is crossed and all is overlapped on the roller shaft 22 and is equipped with roller 23, and the material area passes two gaps of crossing between the roller 23, provides the pulling force to every roller 23 of crossing under the effort of book needle P, makes roller mechanism 2 wholly deflect.

The spring 4 is at least one spiral spring 41, and the spring 4 can be provided as other elastic elements capable of providing a reverse acting force.

The transmission mechanism 3 includes a rotating shaft 31 fixedly connected to the first mounting seat 1, at least one bearing 32 sleeved outside the rotating shaft 31, and a second mounting seat 33 for fixing the bearing 32, the rotating shaft 31 is provided with at least one mounting groove 311, and the second mounting seat 33 is provided with at least one clamping groove 34. As shown in fig. 2, the spiral spring 41 is disposed around the rotation shaft 31, the fixed end of the spiral spring 41 is inserted into the mounting groove 311 for assembly, and the force-bearing end is disposed in the locking groove 34, at which time, the power provided by the spiral spring 41 cannot be adjusted.

In this embodiment, the adjusting process of the tension adjusting device is as follows:

the scroll needle P provides the pulling force to every roller 23 of crossing, makes and crosses roller mechanism 2 whole deflection, drives pivot 31 rotatory, and spiral spring 41 sets up around pivot 31, and when pivot 31 was rotatory, spiral spring 41 warp, because spiral spring 41 has elasticity, at this moment, just for pivot 31 provides a deformation power and is used for stabilizing cross roller mechanism 2's deflection, the pulling force that makes the material area provide is balanced all the time with the deformation power that spiral spring 41 provided, keeps the material area to be in the state of tensioning all the time, and spiral spring 41 response speed is fast, small, makes the whole tension of device adjust effectually.

As shown in fig. 3, a second embodiment of the present invention is modified from the first embodiment.

The volute spiral spring 41 may be damaged during a long time use, resulting in insufficient tension adjusting capability, or a standard value of the tension received by the tape may be changed when a different tape is replaced. In order to improve the applicability of the tension adjusting device, the second mounting seat 33 of the tension adjusting device comprises a fixed seat 35 and an adjusting disc 36. The fixed seat 35 is used for fixing the bearing 32, and the adjusting disc 36 is used for adjusting the spring deformation force. The adjusting disk 36 is sleeved on the outer surface of the volute spiral spring 41, and at least one clamping groove 34 is arranged on the adjusting disk 36.

First mount pad 1 is circular, and fixing base 35 is the drum shape, and interior surface machining has the die cavity with first mount pad 1, pivot 31, bearing 32, adjusting disk 36 assorted, makes things convenient for the equipment of each part, and the fixing base 35 cover is established at the surface of first mount pad 1, pivot 31, bearing 32. The one end that roller mechanism 2 was kept away from to fixing base 35 is provided with third mount pad 5, and the one end that is close to roller mechanism 2 is provided with end cover 6, and third mount pad 5, end cover 6 all make drive mechanism 3 form a cylinder through screw and fixing base 35 fixed connection, prevent that drive mechanism 3 from being blocked damage equipment. In order to make the transmission of the transmission mechanism 3 more stable, the number of the bearings 32 is two, and the bearings are symmetrically arranged at two ends of the rotating shaft 31. As shown in fig. 3, the number of the spiral springs 41 is two, the spiral springs are sleeved together, the fixed ends of the two spiral springs 41 are symmetrically inserted into the mounting groove 311, the two stressed ends are disposed in the two slots 34, and the connection line of the two slots 34 passes through the center of the rotating shaft 31.

Adjusting disk 36 is fixed relatively with fixing base 35, and the quantity of draw-in groove 34 sets up to a plurality ofly and evenly distributed on adjusting disk 36, and spiral spring 41's stiff end is unchangeable with mounting groove 311 hookup location, inserts the draw-in groove 34 of different positions through manual change spiral spring 41 atress end, changes spiral spring 41's deformation, and then changes spiral spring 41 and provides the size of deformation power to pivot 31. The clamping grooves 34 are uniformly distributed on the adjusting disc 36, so that the influence of the uneven weight of the adjusting disc 36 on the tension adjusting device can be reduced.

The adjusting disk 36 is arranged at a position close to the third mounting seat 5, so that the third mounting seat 5 can be opened conveniently to adjust the position of the spiral spring 41 inserted into the clamping groove 34.

The number of the volute spiral springs 41 and the clamping position of the other end can be adjusted according to the specific material setting of the tension, so that the phenomenon of unbalanced acting force is avoided.

As shown in fig. 5, a third embodiment of the present invention is modified from the second embodiment.

For more convenient adjustment of the deformation force of the spiral spring 41, the adjusting disk 36 and the fixing seat 35 are configured to be relatively rotatable and lockable by a locking mechanism. As shown in fig. 6, the fixed ends of the spiral spring 41 are still symmetrically inserted into the mounting slots 311, at least one adjusting button 37 is disposed on the outer circumferential surface of the adjusting plate 36, the fixing base 35 is formed with an arc opening 38 matching with the adjusting button 37, and the adjusting button 37 extends out of the fixing base 35 through the arc opening 38 and can be toggled in the arc opening 38, so that the deformation force of the spiral spring 41 can be adjusted.

The locking mechanism may be a buckle lock, a ratchet lock, etc., and is not limited specifically. As shown in fig. 7, the locking mechanism of the present embodiment includes a plurality of threaded grooves 361 formed on the outer circumferential surface of the adjusting plate 36, at least one threaded through hole 351 formed on the outer surface of the fixing base 35 and matching with the threaded grooves 361, and screws for fixing the threaded through hole 351 and the threaded grooves 361, and the power of the spiral spring 41 is adjusted by fixing the threaded through hole 351 and the different threaded grooves 361. By fixing the threaded through hole 351 with the different threaded grooves 361, the relative position of the adjustment disc 36 and the fixed seat 35 can be adjusted, thereby adjusting the deformation force of the spiral spring 41.

In this embodiment, two adjusting buttons 37 are symmetrically disposed on the outer circumferential surface of the adjusting disk 36, the fixing seat 35 is processed with arc-shaped openings 38 matched with the adjusting buttons 37, and the arc-shaped openings 38 are also symmetrically disposed. The two adjusting buttons 37 respectively extend out of the fixing base 35 through the corresponding arc-shaped openings 38, the threaded through holes 351 and the different threaded grooves 361 are fixed through screws, and the adjusting scroll spring 41 provides the magnitude of the deformation force. The clamping groove 34, the mounting groove 311, the adjusting button 37 and the arc-shaped opening 38 are symmetrically arranged, and the influence of uneven distribution on the tension adjusting device is reduced.

Scroll spring 41 and adjusting disk 36 can set up in the position that is close to first mount pad 1, also can set up in the position that is close to third mount pad 5, and according to adjusting device and other device mounted position settings, it can to make things convenient for adjusting knob 37 to adjust.

As shown in fig. 7 and 8, in order to prevent the scroll spring 41 from being damaged due to the excessive rotation of the rotating shaft 31, at least one limiting block 11 is disposed on the outer circumferential surface of the first mounting seat 1, an arc-shaped limiting groove 352 matched with the limiting block 11 is formed on the inner circumferential surface of the fixing seat 35, and the limiting block 11 is limited to rotate within the range of the arc-shaped limiting groove 352. In this embodiment, stopper 11 sets up to two and the symmetry sets up on first mount pad 1, and arc spacing groove 352 also sets up to two with stopper 11 assorted, and stopper 11, arc spacing groove 352's symmetry sets up, also can reduce the influence of maldistribution to volute spiral spring 41 tension adjustment.

The end cover 6 is circular and fixed at the end part of the fixed seat 35 close to the roller mechanism 2, and can limit the limiting block 11 and prevent the transmission mechanism 3 from falling off from the fixed seat 35.

In this embodiment, the working process of the tension adjusting device is as follows:

the material roll M passes through the tension buffer device N and then passes between two rollers 23 of the tension adjusting device O, and finally enters the winding needle P.

The linear velocities of the material belt passing through the two side surfaces and the two end parts of the winding needle P are different, so that the condition that the material belt close to the winding needle P shakes is caused.

As shown in fig. 9, when the material tape is wound to the side surface from the end of the winding needle P, the winding speed of the material tape is increased, the tension of the material tape is increased by the winding needle P, the friction of the material tape on the passing roller 23 is increased, the spiral spring 41 is deformed, the passing roller mechanism 2 rotates counterclockwise by a certain angle, a section of the material tape is gradually released, and the tension of the material tape near the winding needle P is gradually reduced.

As shown in fig. 10, when the material tape is wound to the end portion from the side surface of the winding needle P, the winding speed of the material tape becomes slow, the pulling force of the winding needle P to the material tape decreases, the tension of the material tape decreases, the material tape is prone to shaking, the friction force of the material tape to the passing roller decreases, the volute spiral spring 41 gradually recovers deformation, the passing roller mechanism 2 is driven to rotate clockwise by a certain angle, and the tension of the material tape near the winding needle P is gradually increased.

The deformation force provided by the spiral spring 41 is always consistent with the tension of the winding needle P on the material belt, and the tension of the material belt is ensured to be constant.

When changing different materials areas, the tension standard value that the material area bore changes, only needs to dismantle the screw of original fixed screw thread through-hole 351 and thread groove 361, and the knob 37 is stirred to the manual, and knob 37 slides in arc opening 38, rotates suitable position after, locks thread through-hole 351 and the thread groove 361 that corresponds now with the screw, and the adjustment is convenient, can realize multistage regulation.

In conclusion, the tension adjusting device saves space, is quick in response, constantly ensures the tension of the material belt to be constant, is convenient to adjust the deformation force of the volute spiral spring, and has strong adaptability.

The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the utility model is all within the protection scope of the utility model. The protection scope of the utility model is subject to the claims.

Claims

1. A tension adjusting device is characterized by comprising a first mounting seat, wherein one end of the first mounting seat is provided with a roller passing mechanism, the other end of the first mounting seat is provided with a transmission mechanism, and the roller passing mechanism is in contact with an external strip and is driven by the strip to rotate so as to drive the first mounting seat to deflect; drive mechanism includes the pivot with first mount pad fixed connection, overlaps the second mount pad of establishing an at least bearing outside the pivot and fixing bearing, the pivot sets up an at least mounting groove, make a spring take place to deform through drive mechanism when first mount pad takes place to deflect, this deformation power is used for stabilizing the deflection of roller mechanism.

2. The tensioning device of claim 1, wherein the spring is at least one coil spring.

3. A tension adjusting device as claimed in claim 2, wherein the second mounting seat is provided with at least one catching groove, the spiral spring is disposed around the rotation shaft, a fixed end thereof is inserted into the mounting groove to be assembled, and a force-receiving end thereof is disposed in the catching groove.

4. A tension adjusting device as claimed in claim 3, wherein the second mounting seat includes a fixed seat and an adjusting disc for adjusting the deformation force of the spring, the adjusting disc is sleeved on the outer surface of the spiral spring, and the at least one engaging groove is formed on the adjusting disc.

5. The tension adjustment device as claimed in claim 4, wherein the spiral spring is provided at one end of the rotation shaft; wherein, the stiff end of volute spiral spring inserts the mounting groove in order to realize the equipment, and its atress end sets up in the draw-in groove of adjustment disk.

6. The tension adjusting apparatus as claimed in claim 4, wherein the spiral spring has two fixed ends symmetrically disposed in the mounting groove, two force-bearing ends disposed in the two slots, and a connection line of the two slots passing through a center of the rotation shaft.

7. A tension adjusting device as claimed in claim 5 or 6, wherein the adjusting plate is fixed to the fixing base, a plurality of slots are uniformly distributed on the adjusting plate, the fixing end of the spiral spring is inserted into the mounting groove, and the force bearing end is inserted into different slots to adjust the deformation force of the spiral spring.

8. A tension adjusting device as claimed in claim 5 or 6, wherein the adjusting plate and the fixing base can rotate relatively, at least one adjusting knob is disposed on the outer circumference of the adjusting plate, the fixing base is formed with an arc-shaped opening matched with the adjusting knob, the adjusting knob extends out of the fixing base through the arc-shaped opening and can be shifted in the arc-shaped opening, and the adjusting plate and the fixing base are locked by a locking mechanism.

9. The tension adjusting apparatus as claimed in claim 8, wherein the locking mechanism includes a plurality of screw grooves formed on an outer circumferential surface of the adjusting plate, at least one screw through-hole formed on an outer surface of the fixing base to be matched with the screw grooves, and screws for fixing the screw through-hole and the screw grooves, and the power of the spiral spring is adjusted by fixing the screw through-hole to different screw grooves.

10. The tension adjusting device as claimed in claim 1, wherein the roller passing mechanism comprises two roller passing shafts, one end of each roller passing shaft is fixedly connected with the first mounting seat, the other end of each roller passing shaft is provided with a roller passing end cover, and each roller passing shaft is sleeved with a roller.