A four-stage multi-pull claw type continuous adjustable tab stretching mechanism

Abstract

A four-stage multi-pull claw type continuous adjustable tab extension mechanism belongs to the technical field of lithium / sodium ion battery material manufacturing. A combined ring sleeve is installed on an extension shaft in an area to be extended, and a pushing assembly is installed on the outside of the combined ring sleeve for pushing the combined ring sleeve to change the diameter. The combined ring sleeve comprises a circular ring sleeved on the extension shaft and a plurality of C-shaped sleeves. The circular ring is fixedly connected with the extension shaft, the plurality of C-shaped sleeves are slidingly connected with the extension shaft in front and back, and the circular ring and the plurality of C-shaped sleeves are nested step by step from inside to outside. The combined ring sleeve, the screw hand wheel and the front and back limiting nuts are used to change the area to be extended into a continuous adjustable area, a plurality of C-shaped sleeves are limited in front and back, the C-shaped sleeves are pulled backward to adopt the double nuts self-locking limiting of the screw, the C-shaped sleeves are pushed forward (in the direction of extension) to use the double nuts self-locking limiting, and the corresponding hand wheels are respectively rotated to realize the contraction of the C-shaped sleeves forward. The adjustment time can be shortened.

Description

Technical Field

[0001] This utility model belongs to the field of lithium / sodium ion battery material manufacturing technology, specifically relating to a four-level multi-claw type continuously adjustable tab extension mechanism. Background Technology

[0002] In existing electrode rolls, the coated area stretches after rolling, while the uncoated tab area does not, resulting in stress lines. This causes foil wrinkles, affecting surface quality and even leading to breakage. Normally, stretching is achieved by repeatedly applying Teflon tape to the stretching roller to change its diameter, which is cumbersome and requires repeated tape application. Utility Model Content

[0003] To solve the above problems, this utility model provides a four-level multi-claw type continuously adjustable tab extension mechanism, which directly adjusts the position to be extended and stretched, without the need to repeatedly apply Teflon to the tab extension area for stretching and extension.

[0004] The technical solution adopted by this utility model is:

[0005] A four-stage multi-claw type continuously adjustable tab extension mechanism includes a combined ring sleeve and a pushing component; the combined ring sleeve is installed on the extension area on the extension shaft, and a pushing component is installed on the outside of the combined ring sleeve for pushing the combined ring sleeve to change its diameter;

[0006] The combined ring includes a circular ring fitted on an extension shaft and multiple C-shaped sleeves. The circular ring is fixedly connected to the extension shaft, and the multiple C-shaped sleeves are slidably connected to the extension shaft. The circular ring and the multiple C-shaped sleeves are nested from the inside out.

[0007] Compared with the prior art, the present invention has the following advantages:

[0008] This invention, through the combination of a ring sleeve, a screw handwheel, and front and rear limit nuts, makes the area to be extended continuously adjustable. Multiple sets of C-shaped sleeves provide front and rear limiters. Pulling the C-shaped sleeve backward uses a double-nut self-locking limit on the screw, and pushing the C-shaped sleeve forward (in the direction of extension) also uses a double-nut self-locking limit. By rotating the corresponding handwheels, the C-shaped sleeve can be retracted forward. This shortens the adjustment time. Attached Figure Description

[0009] Figure 1 This is an isometric drawing of this utility model;

[0010] Figure 2 This is the front view of this utility model;

[0011] Figure 3 This is a side view of the present invention;

[0012] Figure 4 yes Figure 3 AA section view;

[0013] Figure 5 yes Figure 3 BB cross-sectional view;

[0014] Figure 6 yes Figure 3 CC section view;

[0015] Figure 7 This is a schematic diagram of the installation of the self-locking nut of this utility model;

[0016] The components are: 1. Extension shaft; 2. Combination ring sleeve; 3. Pushing assembly; 101. Area to be extended; 201. Ring; 202. C-shaped sleeve; 301. Two-jaw pull rod; 302. Screw; 303. Handwheel; 304. Flower plate; 305. Connecting column; 306. Cuboid; 307. Cylinder; 308. Limiting self-locking nut; 309. Positioning cone; 310. Clearance channel. Detailed Implementation

[0017] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model will be provided below with reference to the accompanying drawings.

[0018] This utility model utilizes a multi-level adjustment mechanism, and during use, it is only necessary to select the matching C-type sleeve 202 to perform tensile stress patterning.

[0019] like Figures 1-7 As shown, this utility model provides a four-stage multi-claw type continuously adjustable tab extension mechanism, including a combination ring sleeve 2 and a pushing component 3; the combination ring sleeve 2 is installed on the extension area 101 on the extension shaft 1, and the pushing component 3 is installed on the outside of the combination ring sleeve 2 for pushing the combination ring sleeve 2 to change its diameter;

[0020] The combined ring sleeve 2 includes a circular ring 201 fitted on the extension shaft 1 and multiple C-shaped sleeves 202. The circular ring 201 is fixedly connected to the extension shaft 1, and the multiple C-shaped sleeves 202 are slidably connected to the extension shaft 1. The circular ring 201 and the multiple C-shaped sleeves 202 are nested from the inside to the outside.

[0021] C-type sleeve 202 and extension shaft 1 are slidably connected by a concave-convex guide rail structure.

[0022] like Figure 1 , Figure 2 As shown, the pushing assembly 3 includes multiple two-pronged pull rods 301, multiple screws 302, and multiple handwheels 303; each of the two-pronged pull rods 301 is connected at both ends to the outer bottom surface of a C-shaped sleeve 202, and the remaining C-shaped sleeves 202 have corresponding two-pronged pull rod 301 clearance channels 310 (e.g., ...). Figures 3-6As shown, each two-jaw pull rod 301 has a threaded hole for threaded installation of a screw rod 302. One end of the screw rod 302 abuts against the extension shaft 1, and the other end is provided with a handwheel 303.

[0023] like Figure 1 , Figure 3 As shown, multiple two-claw pull rods 301 are evenly distributed in a ring and staggered front to back.

[0024] like Figures 1-3 As shown, the pushing component 3 also includes a flower plate 304 and a connecting post 305; the connecting post 305 is fixed in the center hole of the flower plate 304, one end of the connecting post 305 is fixed to the center of the end face of the extension shaft 1, and the other end of the connecting post 305 passes through the center holes of a plurality of two-jaw pull rods 301 in sequence with gaps. The flower plate 304 has a corresponding through hole at each screw 302, and an annular scale layer is provided at each through hole to cooperate with the scale on the handwheel 303.

[0025] like Figure 2 As shown, each of the two-claw pull rods 301 includes a cuboid 306 and two cylinders 307; the two ends of the cuboid 306 are respectively connected to the two cylinders 307 to form a U-shaped structure, the two cylinders 307 are used to connect with the C-shaped sleeve 202, the cuboid 306 has a threaded hole for connecting with the screw 302, and the cuboid 306 has a central hole for connecting with the connecting post 305.

[0026] like Figure 7 As shown, each screw 302 is provided with two sets of limiting self-locking nuts 308. The distance between the two sets of limiting self-locking nuts 308 is the length that the two claw pull rod 301 and the C-shaped sleeve 202 can move.

[0027] like Figure 7 As shown, one end of each screw 302 that connects with the extension shaft 1 is configured as a positioning cone 309, and a conical hole that mates with the positioning cone 309 is provided on the end face of the extension shaft 1.

[0028] like Figures 4-6 As shown, each of the C-shaped sleeves 202 can accommodate the previous C-shaped sleeve 202. That is, the height of each C-shaped sleeve 202 is sufficient to ensure that when it retracts forward, it completely surrounds the previous C-shaped sleeve 202 inside.

[0029] Figure 1 The diagram shows a circular ring 201 and three C-shaped sleeves 202. The circular ring 201 is the smallest ring 201 sleeve fixed on the extension shaft. The three C-shaped sleeves 202 are C-shaped sleeve one, C-shaped sleeve two, and C-shaped sleeve three, with their outer wall diameters increasing sequentially.

[0030] Figure 1In the middle, three screws 302 are used to control the forward and backward movement of the two-jaw pull rod 301, and limit self-locking nuts 308 are installed on the screws 302 to control the forward and backward limits respectively to prevent overtravel in forward or backward movement.

[0031] Figure 1 The flower plate 304 has three perforations evenly distributed at 120° for installing screws 302. The three perforations are engraved with scales around them to match the scales on the handwheel 303. A stud without threads (i.e., connecting post 305) is installed in the center hole, which passes through all the two-jaw pull rods 301 to provide support and guidance.

[0032] Figure 1 The two-jaw tie rod 301 is composed of two connected parts: a cylinder 307 is welded to a C-shaped sleeve 202, and a cuboid 306 is connected to the cylinder 307 by bolts. The threaded hole on the cuboid 306 is eccentrically set, and the center hole of the cuboid 306 is a reserved hole for connecting column 305.

[0033] A multi-level adjustable tab extension mechanism includes the following steps:

[0034] Step 1: First, install the ring 201 and the three C-shaped sleeves 202 onto the extension shaft in sequence and stretch them until all C-shaped sleeves 202 are unfolded. Install the screw 302 and the two-jaw pull rod 301 onto the extension shaft, then fix the flower plate 304 and install the handwheel 303. Adjust the front and rear limit self-locking nuts 308 according to the stroke of each C-shaped sleeve 202.

[0035] Step 2: During the roll forming process, first use the 201 ring to roll and stretch the tab area, and observe the roll forming and stretching situation. If the effect is not good;

[0036] Step 3: Switch to C-type sleeve one. Simply turn handwheel 303 to move C-type sleeve one forward to the pole tab extension position. At this time, lock the two front limit self-locking nuts 308 to determine the forward limit. Conversely, move it back to the farthest position to determine the rear limit by locking the two rear limit self-locking nuts 308.

[0037] Step 4: If the stretching of C-type sleeve one does not achieve the required process effect, then use C-type sleeve two for stretching. Similarly, turn handwheel 303 and move C-type sleeve two forward to the end tab stretching position. At this time, lock the two front limit self-locking nuts 308 to determine the forward limit. Conversely, move it back to the farthest position to determine the two rear limit self-locking nuts 308 to lock the rear limit.

[0038] Step 5: If the stretching of C-type sleeve 2 does not achieve the required process effect, then use C-type sleeve 3 for stretching. In the same way, turn the handwheel 303 and move C-type sleeve 3 forward to the end tab stretching position. At this time, lock the two front limit self-locking nuts 308 to determine the forward limit. Conversely, move it back to the farthest position to determine the two rear limit self-locking nuts 308 to lock the rear limit.

[0039] Step 6: Record the specific C-type sleeve 202 selected for this roll forming process, so that it can be selected in advance next time to achieve the required process effect in one go.

[0040] This utility model is a device for multi-stage continuous diameter change. During use, it significantly improves production efficiency and has a significant effect on stretching and extending thin areas.

[0041] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A four-stage multi-claw type continuously adjustable tab extension mechanism, characterized in that: It includes a combined ring sleeve (2) and a pushing component (3); the combined ring sleeve (2) is installed on the extension area (101) on the extension shaft (1), and the pushing component (3) is installed on the outside of the combined ring sleeve (2) to push the combined ring sleeve (2) to change its diameter; The combined ring sleeve (2) includes a circular ring (201) fitted on the extension shaft (1) and a plurality of C-shaped sleeves (202). The circular ring (201) is fixedly connected to the extension shaft (1), and the plurality of C-shaped sleeves (202) are slidably connected to the extension shaft (1) from front to back. The circular ring (201) and the plurality of C-shaped sleeves (202) are nested from the inside to the outside.

2. The four-stage multi-claw type continuously adjustable tab extension mechanism according to claim 1, characterized in that: The pushing component (3) includes multiple two-jaw pull rods (301), multiple screws (302), and multiple handwheels (303); each of the two-jaw pull rods (301) is connected to the outer bottom surface of a C-shaped sleeve (202) at both ends, and the remaining C-shaped sleeves (202) have corresponding two-jaw pull rod (301) clearance channels (310). Each two-jaw pull rod (301) has a threaded hole for threaded installation of the screw (302). One end of the screw (302) abuts against the extension shaft (1), and the other end is provided with a handwheel (303).

3. The four-stage multi-claw type continuously adjustable tab extension mechanism according to claim 2, characterized in that: Multiple two-claw pull rods (301) are evenly distributed in a ring and staggered front to back.

4. The four-stage multi-claw type continuously adjustable tab extension mechanism according to claim 3, characterized in that: The pushing component (3) also includes a flower plate (304) and a connecting post (305); the connecting post (305) is fixed in the center hole of the flower plate (304), one end of the connecting post (305) is fixed to the center of the end face of the extension shaft (1), and the other end of the connecting post (305) passes through the center holes of multiple two-jaw pull rods (301) in sequence with gaps. The flower plate (304) has a corresponding through hole at each screw (302), and an annular scale layer is set at each through hole to cooperate with the scale on the handwheel (303).

5. The four-stage multi-claw type continuously adjustable tab extension mechanism according to claim 4, characterized in that: Each of the two-jaw pull rods (301) includes a cuboid (306) and two cylinders (307); the two ends of the cuboid (306) are respectively connected to the two cylinders (307) to form a U-shaped structure, the two cylinders (307) are used to connect with the C-type sleeve (202), the cuboid (306) has a threaded hole for connecting with the screw (302), and the cuboid (306) has a central hole for connecting with the connecting post (305).

6. The four-stage multi-claw type continuously adjustable tab extension mechanism according to claim 5, characterized in that: Each screw (302) is provided with two sets of self-locking nuts (308).

7. A four-stage multi-claw type continuously adjustable tab extension mechanism according to claim 6, characterized in that: One end of each screw (302) that connects with the extension shaft (1) is provided as a positioning cone (309), and a conical hole that mates with the positioning cone (309) is provided on the end face of the extension shaft (1).

8. The four-stage multi-claw type continuously adjustable tab extension mechanism according to claim 1, characterized in that: Each of the aforementioned C-type sleeves (202) is capable of accommodating the previous C-type sleeve (202).

Images