Film cutting mechanism

Abstract

The utility model relates to the technical field of lead storage battery production, and particularly discloses a film cutting mechanism which comprises a rack, a feeding roller, a first guide roller, a longitudinal cutting tool bit, a second guide roller, a guide groove and a transverse cutting tool bit are sequentially arranged on the rack from left to right, and the feeding roller, the first guide roller and the second guide roller are axially and horizontally fixed to the rack; the feeding roller is sleeved with a release film coiled material, the longitudinal cutting tool bit comprises a plurality of blades which are arranged at intervals and tangent to the second guide roller, a plurality of vertical guide plates are arranged on the surface of the guide groove at intervals according to the width of a release film strip, the release film strip can penetrate through the space between the adjacent guide plates, and the transverse cutting tool bit is parallel to the width of the release film strip. The two ends of the second guide roller are sleeved with limiting shafts, the distance between the limiting shafts is the same as the width of the release film, and the diameter of the limiting shafts is larger than that of the second guide roller. According to the scheme, the problem that an existing release film cutting machine cannot be suitable for cutting small-size release films meeting the circuit board machining requirement in storage battery production can be solved.

Description

Technical Field

[0001] This utility model relates to the field of lead-acid battery production technology, specifically to a thin film cutting mechanism. Background Technology

[0002] Release film is an industrial film, typically made from large-size release film rolls. In the production of lead-acid battery plates, release film is used to bond with specific materials, ensuring that the circuit boards are not corroded by solutions during circuit board manufacturing. However, when bonding the release film to the circuit board, large-size sheets cannot be used directly. Instead, the release film is cut into strips, and then these strips are cut into individual strips of specific lengths. Existing release film cutting machines use wide, large-size release film rolls, which are unsuitable for narrower release films. This leads to squeezing and collisions between the edges of the release film during cutting, damaging the smoothness of the edges and causing waste. Therefore, our company has proposed a new film cutting mechanism. Utility Model Content

[0003] The present invention provides a film cutting mechanism to solve the problem that existing release film cutting machines are not suitable for cutting small-sized release films required for circuit board processing in battery production.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: A film cutting mechanism includes a frame, on which a feeding roller, a first guide roller, a longitudinal cutting head, a second guide roller, a guide groove, and a transverse cutting head are arranged sequentially from left to right. The feeding roller, the first guide roller, and the second guide roller are all axially and horizontally fixed on the frame. A release film roll is sleeved on the feeding roller. The longitudinal cutting head includes several blades spaced apart and tangent to the second guide roller. The longitudinal cutting head can cut the release film into several release film strips of the same width. Several vertical guide plates are arranged on the surface of the guide groove according to the width of the release film strips. The release film strips can pass through the gaps between adjacent guide plates. The transverse cutting head is arranged parallel to the width of the release film strips. Limiting shafts are sleeved at both ends of the second guide roller. The distance between the limiting shafts is the same as the width of the release film. The diameter of the limiting shafts is larger than the diameter of the second guide roller.

[0005] The basic principle of this scheme is as follows: the release film roll extends out and passes under the first guide roller, and passes through the second guide roller and enters the longitudinal cutting head. The longitudinal cutting head cuts the release film roll into several release film strips of the same width. After the release film strips pass through the guide groove, they are separated from each other and the conveying direction is restricted so that they do not overlap. After being conveyed to a certain length behind the transverse cutting head, the transverse cutting head works to divide the release film strips of a certain length.

[0006] The beneficial effects of this solution are as follows: Existing release film strip slitting machines are suitable for large-size release film rolls. However, the size requirements after slitting cannot meet the requirements of the thin and long strip release film used in the printed circuit board manufacturing process of batteries. Furthermore, the edges of the thin and long strip release film are more easily squeezed and collided during the cutting process, resulting in the problem of the release film edges being damaged. This solution installs a limiting shaft on the second guide roller, thereby clamping the two sides of the release film between the limiting shaft. Then, the longitudinal cutting head above is tangentially set with the second guide roller to cut the release film into release film strips of the same width. Finally, the transverse cutting head is used to cut the release film strips to a fixed length.

[0007] Furthermore, the slitting head is an adjustable slitting head with an adjustable pitch angle. The tangential angle between the slitting head and the second guide roller can be adjusted according to the actual release film thickness.

[0008] Furthermore, a third guide roller with an axial horizontal orientation is provided at the front end of the guide groove. The third guide roller is parallel to the second guide roller, and a drive motor is provided at the end of the third guide roller. The drive motor can drive the third guide roller to rotate axially. The release film is conveyed to the rear end through the third guide roller.

[0009] Furthermore, a pressure roller is fixed behind the cross-cutting head, and several rollers are spaced on the pressure roller. Each roller can contact the surface of the cut release film strip from top to bottom. Using rollers to press the release film strip prevents the release film vibration from affecting the cross-cutting effect.

[0010] Furthermore, symmetrical receiving grooves are provided on both ends of the frame of the cross-cutting head. An axially horizontal lead screw is installed in each receiving groove, and a second drive motor is fixed to the end of the lead screw. The second drive motor can drive the lead screw to rotate. A first slider is threaded onto the lead screw, and the two ends of the pressure roller and the cross-cutting head are respectively mounted on the two first sliders. This lead screw and slider structure allows the position of the cross-cutting head to be adjusted, enabling fixed-length cutting of the release film according to the actual length requirements.

[0011] Furthermore, the cross-cutting head is a sliding cutter or a push-pull cutter. Attached Figure Description

[0012] Figure 1 This is a side view schematic diagram of an embodiment of the present utility model;

[0013] Figure 2 This is a top view schematic diagram of an embodiment of the present utility model;

[0014] Figure 3 This is a top view of the embodiment of the present invention during use;

[0015] Figure 4 This is a schematic diagram of the longitudinal cutting head in an embodiment of this utility model. Detailed Implementation

[0016] The following detailed description illustrates the specific implementation method:

[0017] The reference numerals in the accompanying drawings include: frame 01, feeding roller 1, first guide roller 2, second guide roller 3, third guide roller 4, limiting shaft 5, longitudinal cutting head 6, blade 7, guide groove 8, guide plate 81, transverse cutting head 9, pressing roller 10, roller 101, drive motor one 111, drive motor two 112, lead screw 12, first slider 13, release film 14, receiving groove 15.

[0018] The basic implementation examples are as follows: Figure 1 To be continued Figure 4 As shown:

[0019] A film cutting mechanism includes a frame 01. From left to right, the frame 01 is equipped with a feeding roller 1, a first guide roller 2, a slitting head 6, a second guide roller 3, a third guide roller 4, a guide groove 8, and a cross-cutting unit. The feeding roller 1, first guide roller 2, second guide roller 3, and third guide roller 4 are all axially and horizontally fixed to the frame 01. A release film roll is sleeved on the feeding roller 1. The release film is pulled out from the feeding roller 1 and passes through the first guide roller 2 from below. The slitting head 6 is positioned between the first guide roller 2 and the second guide roller 3. The slitting head 6... Figure 4 As shown, five spaced blades 7 are fixed along the length of the longitudinal cutting head 6. The direction of the blades 7 is perpendicular to the axial direction of the second guide roller 3, and the lower edge of the blades 7 is tangent to the top wall of the second guide roller 3. The release film passes through from above the second guide roller 3, and the upper surface of the release film contacts the blades 7 of the longitudinal cutting head 6, thereby longitudinally cutting a whole release film 14 into six release film strips of the same width by the longitudinal cutting head 6.

[0020] After the release film is cut, it enters the third guide roller 4 and passes through the bottom of the third guide roller 4. The third guide roller 4 is fixed above the guide groove 8, which is a square platform. Five vertical guide plates 81 are provided at intervals along the length of the square platform. The distance between adjacent guide plates 81 is the same as the width of the release film strip. A horizontal gap is formed between the third guide roller 4 and the square platform for the release film strip to pass through. A drive motor 111 is fixed at the end of the third guide roller 4. The drive motor 111 drives the third guide roller 4 to rotate counterclockwise along the axial direction, thereby driving the release film to be transported from left to right.

[0021] On the right side of the frame 01 of the guide groove 8, there are symmetrically fixed long box-shaped receiving grooves 15. The opening of the receiving groove 15 is upward. A horizontally axial lead screw 12 is fixed inside the receiving groove 15. The axis of the lead screw 12 is parallel to the transport direction of the release film. A second drive motor 112 is installed at the end of the lead screw 12. The second drive motor 112 is used to rotate the lead screw 12. A first slider 13 is threadedly connected to the lead screw 12. The lower part of the first slider 13 is a rectangular block that contacts the inner wall of the receiving groove 15 and has a threaded hole. The upper part of the first slider 13 is a horizontal rectangular block. A cross-cutting head 9 is fixed between the top surfaces of two opposing first sliders 13. The cross-cutting head 9 is a push-pull type cutter or a sliding cutter. It can cut the release film by moving the cutter head along the width direction of the release film. A parallel pressing roller 10 is fixed behind the cross-cutting head 9. Rollers 101 are installed on the pressing roller 10 at intervals according to the release film strips. The rollers 101 can contact the surface of the release film below, so that the release film strips can be pressed from top to bottom onto the surface of the machine frame 01 platform to complete the fixed-length cutting of the release film strips.

[0022] Both drive motor 111 and drive motor 212 are electrically connected to the controller of the peripheral device.

[0023] The specific implementation process is as follows:

[0024] The entire release film is pulled out from the feeding roller 1. The release film passes under the first guide roller 2 and wraps around the second guide roller 3, then enters the third guide roller 4. The longitudinal cutter head 6 above the second guide roller 3 cuts the release film into release film strips with equal spacing. The release film strips pass under the third guide roller 4 and enter the guide groove 8. The guide plate 81 of the guide groove 8 separates the multiple release film strips from each other. The release film strips then enter below the transverse cutter head 9, and the bottom surface of the release film strips is lifted and received by the horizontal frame 01 platform. The roller 101 of the pressing roller 10 behind the transverse cutter head 9 presses the multiple release film strips onto the frame 01 platform. When the release film strips pass through the pressing roller 10... When the required length is reached, the cross-cutting head 9 slides along the width direction of the release film, thereby completing the fixed-length cutting of multiple release film strips. Specifically, the cutting length of the release film strip can be adjusted according to actual needs. The drive motor 111 drives the lead screw 12 to rotate. The rotation of the lead screw 12 drives the first slider 13 on it to slide horizontally in the receiving groove 15, thereby driving the entire cross-cutting head 9 to slide on the frame 01 behind the guide groove 8. The right end of the release film strip is aligned with the right end of the frame 01 platform as the starting point of the release film strip. The further to the right the cross-cutting head 9 slides, the shorter the distance between the cross-cutting head 9 and the right end of the frame 01 platform, and thus the shorter the cutting length of the release film strip.

[0025] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A film cutting mechanism, characterized by: The machine frame is provided with, from left to right, a feeding roller, a first guide roller, a longitudinal cutting head, a second guide roller, a guide groove and a transverse cutting head. The feeding roller, the first guide roller and the second guide roller are fixed axially and horizontally on the machine frame. A release film roll is sleeved on the feeding roller. The longitudinal cutting head comprises a plurality of blades arranged at intervals and tangent to the second guide roller. The release film can be cut into a plurality of release film strips of the same width by the longitudinal cutting head. The guide groove is provided with a plurality of vertical guide plates at intervals on the surface according to the width of the release film strip. The release film strip can pass between adjacent guide plates. The transverse cutting head is parallel to the width of the release film strip. The second guide roller is sleeved with a limiting shaft at both ends. The distance between the limiting shafts is the same as the width of the release film. The diameter of the limiting shaft is greater than the diameter of the second guide roller.

2. The film cutting mechanism of claim 1, wherein: The longitudinal cutting head is a longitudinal cutting head with adjustable pitch angle.

3. The film cutting mechanism of claim 2, wherein: An axially horizontal third guide roller is arranged at the front end of the guide groove. The third guide roller is parallel to the second guide roller. The end of the third guide roller is provided with a driving motor. The driving motor can drive the third guide roller to rotate axially.

4. The film cutting mechanism of claim 3, wherein: A pressing roller is fixed behind the transverse cutting head. A plurality of rollers are sleeved at intervals on the pressing roller. Each roller can touch the surface of the cut release film strip from top to bottom.

5. The film cutting mechanism of claim 4, wherein: Symmetrical accommodating grooves are arranged on both ends of the transverse cutting head. Axially horizontal lead screws are installed in the accommodating grooves. Driving motors are fixed at the ends of the lead screws. The driving motors can drive the lead screws to rotate. First sliding blocks are threadedly connected to the lead screws. The pressing roller and the transverse cutting head are respectively installed on the two first sliding blocks.

6. A film cutting mechanism according to claim 5, wherein: The transverse cutting head is a sliding cutter or a push-pull cutting knife.

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