Winding needle structure of soft package battery

Abstract

The utility model belongs to the field of winding needle structures, and particularly relates to a winding needle structure of a soft package battery, which comprises a winding needle tube, one end of the winding needle tube is fixedly connected with a hollow baffle plate, one side of the hollow baffle plate far away from the winding needle tube is fixedly connected with a hexagonal column, and the outer side of the winding needle tube is slidably connected with a baffle ring. A rolling film is wound on the outer side of the rolling needle tube, an auxiliary limiting mechanism is arranged on the rolling needle tube, and a plurality of evenly-distributed air holes are formed in the outer side of the rolling needle tube. According to the utility model, the hollow baffle plate, the baffle ring, the auxiliary limiting mechanism and other structures are additionally arranged on the winding needle tube, so that a rolled film can be limited through the hollow baffle plate and the baffle ring in the winding process, the rolled film can be effectively prevented from deviating in the winding process, and the winding quality can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling pin structures, in particular to a rolling pin structure for a soft-pack battery. Background Art

[0002] According to the winding needle structure of soft-pack batteries proposed in patent authorization announcement number: CN217641451U, the utility model relates to the technical field of battery winding machines, and specifically to a winding needle structure for soft-pack batteries. It includes a first winding needle and a second winding needle, one end of the first winding needle is provided with a fixed end for connecting to a winding machine, the first winding needle and the second winding needle are arranged corresponding to each other, and the first winding needle and the second winding needle are slidably matched along the length direction of the winding needle and connected to each other through the first clamping member and the second clamping member arranged at both ends to form a winding needle as a whole. A double needle structure is provided, and the double needles are connected by sliding cooperation, and the connection structure is simple. At the same time, after the winding is completed, it is convenient to pull out the winding needle in sequence along the length direction of the winding needle. This structure is suitable for manual winding machines and semi-automatic winding machines, and is simple to operate, has high winding efficiency, and is easy to repair and remake after damage.

[0003] However, in the process of winding the film, especially in the process of manual winding, the film is easily deviated by the winding needle structure in the prior art, which affects the quality of the film after winding. Therefore, it is necessary to improve the prior art. Utility Model Content

[0004] The utility model aims to provide a winding needle structure for a soft-pack battery, which solves the problem that the winding is prone to deviation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a winding needle structure for a soft-pack battery, comprising a winding needle tube, one end of the winding needle tube is fixedly connected to a hollow baffle, the side of the hollow baffle away from the winding needle tube is fixedly connected to a hexagonal column, the outer side of the winding needle tube is slidably connected to a baffle ring, the outer side of the winding needle tube is wrapped with a rolling film, an auxiliary limiting mechanism is arranged on the winding needle tube, and a plurality of evenly distributed air holes are opened on the outer side of the winding needle tube.

[0006] Preferably, the hollow baffle plate is connected to the needle rolling tube, and an exhaust hole is provided on the outer side of the hollow baffle plate, and the exhaust hole can discharge the gas inside the needle rolling tube and the hollow baffle plate.

[0007] Preferably, the rolled film is in contact with the retaining ring, and the rolled film is in contact with the hollow baffle plate, and the retaining ring and the hollow baffle plate can limit the rolled film.

[0008] Preferably, the auxiliary limiting mechanism comprises a guide pin, the interior of the needle winding tube is fixedly connected with the guide pin, the outer side of the guide pin is slidably connected with a limiting column, and a spring is arranged on the outer side of the guide pin.

[0009] Preferably, the limiting post is slidably connected to the needle winding tube, and the limiting post is slidably connected to the retaining ring, and the limiting post can limit the retaining ring.

[0010] Preferably, one end of the spring is fixedly connected to the needle winding tube, and the other end of the spring is fixedly connected to the limiting column, and the spring can drive the limiting column to automatically reset through elastic force.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model adds structures such as a hollow baffle plate, a baffle ring and an auxiliary limiting mechanism to the winding needle tube. During the winding process, the hollow baffle plate and the baffle ring can be used to limit the roll film, thereby effectively preventing the roll film from deviating during the winding process and effectively improving the winding quality.

[0013] 2. The utility model adds a hexagonal column on the outer side of the hollow baffle. The hexagonal column is a special-shaped column and can drive the needle tube through six faces, which makes the needle tube easier to drive and cannot accurately correspond to the driving position. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A partial structural cross-sectional view;

[0016] Figure 3 For the utility model Figure 1 A three-dimensional diagram of the local structure;

[0017] Figure 4 For the utility model Figure 3 A partial structural cross-sectional view;

[0018] Figure 5 For the utility model Figure 2 A-section structure enlarged view.

[0019] In the figure: 1. needle tube; 2. hexagonal column; 3. film roll; 4. retaining ring; 5. auxiliary limiting mechanism; 6. air vent; 7. hollow baffle; 8. exhaust hole; 51. guide pin; 52. limiting column; 53. spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 A winding needle structure for a soft-pack battery comprises a winding needle tube 1, one end of the winding needle tube 1 is fixedly connected to a hollow baffle 7, a hexagonal column 2 is fixedly connected to the side of the hollow baffle 7 away from the winding needle tube 1, a retaining ring 4 is slidably connected to the outer side of the winding needle tube 1, a winding film 3 is wrapped around the outer side of the winding needle tube 1, an auxiliary limiting mechanism 5 is arranged on the winding needle tube 1, and a plurality of evenly distributed air holes 6 are opened on the outer side of the winding needle tube 1.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The hollow baffle plate 7 is connected to the winding needle tube 1, and an exhaust hole 8 is provided on the outer side of the hollow baffle plate 7. The exhaust hole 8 can discharge the gas inside the winding needle tube 1 and the hollow baffle plate 7. The rolled film 3 contacts the retaining ring 4, and the rolled film 3 contacts the hollow baffle plate 7. The retaining ring 4 and the hollow baffle plate 7 can limit the rolled film 3.

[0023] See also Figure 1 , Figure 2 , Figure 5 The auxiliary limiting mechanism 5 includes a guide pin 51, the inside of the winding needle tube 1 is fixedly connected with the guide pin 51, the outer side of the guide pin 51 is slidably connected to the limiting column 52, and a spring 53 is arranged on the outer side of the guide pin 51. The limiting column 52 is slidably connected to the winding needle tube 1, and the limiting column 52 is slidably connected to the retaining ring 4. The limiting column 52 can limit the retaining ring 4. One end of the spring 53 is fixedly connected to the winding needle tube 1, and the other end of the spring 53 is fixedly connected to the limiting column 52. The spring 53 can drive the limiting column 52 to automatically reset through elastic force.

[0024] When the retaining ring 4 is in the position of the limit post 52, the spring 53 is released, and the spring 53 can drive the limit post 52 to slide into the retaining ring 4 through the elastic force, so as to complete the limiting of the retaining ring 4. Then, after the hexagonal column 2 is inserted into the interior of the winding machine and one end of the film 3 is fixed to the outside of the winding needle tube 1, the film 3 can be wound by the winding machine. During the winding process, the film 3 can be limited by the retaining ring 4 and the hollow baffle plate 7, which can effectively improve the winding quality. At the beginning of winding, the gas generated by winding can be discharged into the interior of the winding needle tube 1 through the air vent 6 and discharged to the outside through the exhaust hole 8.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A winding needle structure for a soft-pack battery, comprising a winding needle tube (1), characterized in that: One end of the needle winding tube (1) is fixedly connected to a hollow baffle plate (7), and the side of the hollow baffle plate (7) away from the needle winding tube (1) is fixedly connected to a hexagonal column (2). The outer side of the needle winding tube (1) is slidably connected to a baffle ring (4), and a rolling film (3) is wound around the outer side of the needle winding tube (1). An auxiliary limiting mechanism (5) is provided on the needle winding tube (1), and a plurality of evenly distributed air holes (6) are opened on the outer side of the needle winding tube (1).

2. The needle winding structure of a soft pack battery according to claim 1, characterized in that: The hollow baffle plate (7) is in communication with the needle winding tube (1), and an exhaust hole (8) is provided on the outer side of the hollow baffle plate (7).

3. The needle winding structure of a soft pack battery according to claim 1, characterized in that: The rolled film (3) is in contact with the retaining ring (4), and the rolled film (3) is in contact with the hollow retaining plate (7).

4. The needle winding structure of a soft pack battery according to claim 1, characterized in that: The auxiliary limiting mechanism (5) comprises a guide pin (51), the interior of the needle winding tube (1) is fixedly connected with the guide pin (51), the outer side of the guide pin (51) is slidably connected with a limiting column (52), and a spring (53) is arranged on the outer side of the guide pin (51).

5. The needle winding structure of a soft pack battery according to claim 4, characterized in that: The limiting column (52) is slidably connected to the needle winding tube (1), and the limiting column (52) is slidably connected to the retaining ring (4).

6. The needle winding structure of a soft pack battery according to claim 4, characterized in that: One end of the spring (53) is fixedly connected to the needle winding tube (1), and the other end of the spring (53) is fixedly connected to the limiting column (52).

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