Expansion shaft for battery foil smoothing mill

Abstract

The utility model relates to the field of air expansion shafts, in particular to an expansion shaft for a battery foil smoothing mill, which comprises a shaft body, an air inlet seat is fixed at one end of the shaft body, a support end is fixed at the other end of the shaft body, and an expansion mechanism is arranged in the shaft body. The four ejection frames are ejected out through expansion of the expansion sleeve, and meanwhile, the expanded expansion sleeve pushes the overturning rod to overturn through the pushing head and pulls the connecting rope to enable the centering clamping seats to move towards the middle position of the shaft body, so that the battery foil roll sleeve is centered and positioned through the centering clamping seats on the two sides of the shaft body; and meanwhile, the ejection frame extending out of the shaft body is used for supporting and fixing the battery foil roll sleeve.

Description

Technical Field

[0001] The utility model relates to the field of air shaft, in particular to an air shaft for a battery foil precision cutting machine. Background Technique

[0002] An air shaft is a special winding and unwinding shaft, that is, a shaft whose surface can protrude after being inflated under high pressure, and a shaft whose surface part quickly retracts after deflation is called an air shaft. A slitter is a mechanical device that cuts wide-width paper, mica tape or film into multiple narrow-width materials, and is commonly used in papermaking machinery, wire and cable mica tape and printing and packaging machinery. The slitter is mainly used for: slitting non-woven fabrics, mica tapes, paper, insulating materials and various film materials, and is especially suitable for slitting narrow non-woven fabrics, paper, insulating materials, mica tapes, films, etc.; and most existing air shafts need to adjust their positions multiple times before supporting the battery foil coil sleeve sleeved on the outside to avoid its deviation to one end of the air shaft, which affects the deviation of the cutting position of the slitter and the slitting quality. Content of the Utility Model

[0003] The purpose of the utility model is to provide an air shaft for a battery foil precision cutting machine to solve the above problems.

[0004] The utility model realizes the above purpose through the following technical solutions:

[0005] An air shaft for a battery foil precision cutting machine includes a shaft body, an air inlet seat is fixed at one end of the shaft body, a support end is fixed at the other end of the shaft body, and an expansion mechanism is arranged inside the shaft body;

[0006] The expansion mechanism includes an expansion sleeve, connecting pipes are fixed at both ends of the expansion sleeve, four ejecting frames are annularly distributed on the outside of the expansion sleeve, two symmetric turning rods, a center clamp seat and a connecting rope are arranged between adjacent two ejecting frames, and one end of each connecting rope away from the center clamp seat bypasses the end of the corresponding turning rod. Four fixing seats for supporting the turning of the turning rod are arranged circumferentially on the connecting pipe, and push heads for pushing the turning rod to turn are arranged at both ends of the expansion sleeve;

[0007] Four groups of ejection openings for facilitating the extension of the ejection frames are arranged on the outside of the shaft body, and four sliding grooves for the center clamp seat to slide are arranged on both sides of the shaft body, and the sliding grooves are located between adjacent two groups of ejection openings.

[0008] Preferably: The connecting rope is fixedly connected with the center clamp seat, and one end of the connecting rope bypassing the turning rod is fixed on the outside of the expansion sleeve.

[0009] Preferably: The push head is fixedly connected with the expansion sleeve, and the fixing seat is fixedly connected with the connecting pipe.

[0010] Preferably: The two connecting pipes are respectively fixedly connected with the air inlet seat and the support end.

[0011] Preferably: The connecting pipe on one side of the expansion sleeve communicates with the air inlet seat.

[0012] Preferably: There are multiple top seats arranged on the outside of the ejection frame.

[0013] The beneficial effects compared with the prior art are as follows: The four ejection frames are ejected by the expansion of the expansion sleeve. At the same time, the expanded expansion sleeve pushes the flipping rod to flip through the pushing head and pulls the connecting rope to move the centering clamp seat towards the middle position of the shaft body, so as to center and position the battery foil coil sleeve through the centering clamp seats on both sides of the shaft body. At the same time, the ejection frame protruding from the shaft body is used to support and fix the battery foil coil sleeve. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a structural schematic diagram of a shaft expanding device for a battery foil precision cutting machine described in the present invention;

[0016] Figure 2 It is a radial sectional view of a shaft expanding device for a battery foil precision cutting machine described in the present invention;

[0017] Figure 3 It is an axial part drawing of a shaft expanding device for a battery foil precision cutting machine described in the present invention;

[0018] Figure 4 It is a partial part drawing of the ejection frame of a shaft expanding device for a battery foil precision cutting machine described in the present invention;

[0019] Figure 5 It is a partial part drawing of the expansion sleeve of a shaft expanding device for a battery foil precision cutting machine described in the present invention;

[0020] Figure 6 It is a cooperation diagram of the flipping rod, connecting rope and centering clamp seat of a shaft expanding device for a battery foil precision cutting machine described in the present invention;

[0021] Figure 7 It is a cooperation diagram of the fixed seat, flipping rod and connecting rope of a shaft expanding device for a battery foil precision cutting machine described in the present invention;

[0022] Figure 8 It is a partial part drawing of the shaft body of a shaft expanding device for a battery foil precision cutting machine described in the present invention.

[0023] The descriptions of the reference numerals are as follows:

[0024] 1. Shaft body; 2. Air intake seat; 3. Expansion mechanism; 4. Support end; 31. Connecting pipe; 32. Expansion sleeve; 33. Ejecting frame; 34. Pushing head; 35. Fixed seat; 36. Flipping rod; 37. Connecting rope; 38. Centering clamp seat. Detailed implementation manners

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0026] The present utility model will be further described below with reference to the accompanying drawings:

[0027] As Figures 1-8 shown, a swelling shaft for a battery foil precision cutting machine includes a shaft body 1, an air intake seat 2 is fixed at one end of the shaft body 1, a support end 4 is fixed at the other end of the shaft body 1, and an expansion mechanism 3 is arranged inside the shaft body 1;

[0028] The expansion mechanism 3 includes an expansion sleeve 32. Connecting pipes 31 are fixed at both ends of the expansion sleeve 32. Four ejecting frames 33 are annularly distributed outside the expansion sleeve 32. Two symmetric flipping rods 36, centering clamp seats 38, and connecting ropes 37 are arranged between adjacent two ejecting frames 33. And one end of each connecting rope 37 away from the centering clamp seat 38 bypasses the end of the corresponding flipping rod 36. Four fixed seats 35 for supporting the flipping of the flipping rods 36 are circumferentially arranged on the connecting pipe 31. Pushing heads 34 for pushing and flipping the flipping rods 36 are arranged at both ends of the expansion sleeve 32. The connecting rope 37 is fixedly connected with the centering clamp seat 38. One end of the connecting rope 37 bypassing the flipping rod 36 is fixed outside the expansion sleeve 32. The pushing head 34 is fixedly connected with the expansion sleeve 32. The fixed seat 35 is fixedly connected with the connecting pipe 31. The two connecting pipes 31 are respectively fixedly connected with the air intake seat 2 and the support end 4. The connecting pipe 31 on one side of the expansion sleeve 32 is communicated with the air intake seat 2. A plurality of top seats are arranged outside the ejecting frame 33. The air intake seat 2 is used to send air into the expansion sleeve 32 through the connecting pipe 31 on one side. The expansion sleeve 32 expands outward by the continuously incoming compressed air. Then the four ejecting frames 33 are simultaneously pushed outwards by the expanded expansion sleeve 32. At the same time, the pushing head 34 starts to move towards the connecting pipe 31 direction due to the expansion of the expansion sleeve 32. Then the flipping rods 36 on the fixed seats 35 are pushed and flipped by the pushing head 34. At this time, the flipping rods 36 on both sides will simultaneously flip towards the two ends of the shaft body 1. During this process, the connecting rope 37 will slide over the end of the flipping rod 36 and pull the centering clamp seat 38 connected thereto to move towards the middle position of the shaft body 1.

[0029] In this embodiment: Four sets of ejection openings are provided on the outer side of the shaft body 1 to facilitate the protrusion of the ejection frame 33. Four sliding grooves for the sliding of the centering clamp 38 are provided on both sides of the shaft body 1. The sliding grooves are located between two adjacent sets of ejection openings. The top seat of the ejection frame 33 protrudes through the ejection openings on the outer side of the shaft body 1. At the same time, the sliding grooves facilitate the simultaneous sliding of the centering clamps 38 on both sides of the shaft body 1 towards the middle position, so as to center and position the battery foil roll sleeve.

[0030] Working principle: When in use, the battery foil roll sleeve to be supported is placed on the outer side of the shaft body 1. At this time, compressed air is sent into the air inlet seat 2. At this time, the air inlet seat 2 sends air into the expansion sleeve 32 through the connecting pipe 31 on one side. The expansion of the expansion sleeve 32 causes the push head 34 to start moving towards the connecting pipe 31. Then, the push head 34 pushes and flips the turning rod 36 on the fixed seat 35. At this time, the two turning rods 36 will simultaneously flip towards both ends of the shaft body 1. During this process, the connecting rope 37 slides over the end of the turning rod 36 and pulls the centering clamp 38 connected thereto towards the middle position of the shaft body 1;

[0031] When the centering clamps 38 on both sides of the shaft body 1 clamp both ends of the battery foil roll sleeve, the centering positioning of the battery foil roll sleeve on the shaft body 1 is completed. Then, the continuously incoming compressed air causes the expansion sleeve 32 to expand outwards. Then, the four ejection frames 33 are simultaneously ejected outwards by the expanded expansion sleeve 32, and then the battery foil roll sleeve is supported and fixed;

[0032] After the expansion sleeve 32 deflates, the four ejection frames 33 no longer support the battery foil roll sleeve. At the same time, the push head 34 no longer pushes the turning rod 36, and the turning rod 36 no longer pulls the connecting rope 37. The centering clamp 38 is toggled to move to its initial position.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An expansion shaft for a battery foil fine cutting machine, characterized in that: It comprises a shaft body (1), one end of the shaft body (1) is fixed with an air inlet seat (2), the other end of the shaft body (1) is fixed with a support end (4), and an expansion mechanism (3) is provided inside the shaft body (1); The expansion mechanism (3) comprises an expansion sleeve (32), both ends of the expansion sleeve (32) are fixed with a connecting pipe (31), four ejection frames (33) are distributed in an annular manner on the outer side of the expansion sleeve (32), two symmetrical turning rods (36), a center clamping seat (38) and a connecting rope (37) are arranged between two adjacent ejection frames (33), and one end of each connecting rope (37) away from the center clamping seat (38) is passed around the corresponding end of the turning rod (36), four fixing seats (35) for supporting the turning rod (36) to turn are arranged circumferentially on the connecting pipe (31), and pushing heads (34) for pushing the turning rod (36) to turn it are arranged at both ends of the expansion sleeve (32); The outer side of the shaft body (1) is provided with four groups of ejection outlets for facilitating the ejection frame (33) to extend out, and both sides of the shaft body (1) are provided with four slide grooves for the sliding of the center clamping seat (38), and the slide grooves are located between two adjacent groups of ejection outlets.

2. The expansion shaft for battery foil fine cutting machine according to claim 1, characterized in that: The connecting rope (37) is fixedly connected to the central clamping seat (38), and one end of the connecting rope (37) passes around the flip rod (36) and is fixed on the outside of the expansion sleeve (32).

3. The expansion shaft for battery foil fine cutting machine according to claim 1, characterized in that: The pushing head (34) is fixedly connected to the expansion sleeve (32), and the fixing seat (35) is fixedly connected to the connecting pipe (31).

4. The expansion shaft for a battery foil fine cutting machine according to claim 1, characterized in that: The two connecting pipes (31) are fixedly connected to the air inlet seat (2) and the supporting end (4) respectively.

5. The expansion shaft for battery foil fine cutting machine according to claim 4, characterized in that: The connecting pipe (31) on one side of the expansion sleeve (32) is in communication with the air inlet seat (2).

6. The expansion shaft for battery foil fine cutting machine according to claim 1, characterized in that: A plurality of ejection seats are arranged on the outer side of the ejection frame (33).

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