Cutting method

Abstract

The invention relates to the technical field, in particular to a cutting method, in an initial state, a first cutting edge part and a second cutting edge part are located on the same side of a cutting linear body, and then the second cutting edge part avoids the cutting linear body through lateral and / or longitudinal displacement to move to the other side of the cutting linear body; then the first cutter and / or the second cutter move relative to the cutting linear body, so that the cutting linear body abuts against the first blade part or the second blade part abuts against the cutting linear body; and finally, the second cutting edge part and the first cutting edge part independently or simultaneously move towards each other in opposite directions, and pass through the cutting linear body to finish cutting. Based on the cutting method, the first cutter and the second cutter are hidden below the cutting linear body in the non-working state, and execution of other procedures is not affected.

Description

Technical Field

[0001] The present invention relates to the technical field of automated cutting, and particularly to a cutting method. Background Art

[0002] In the manufacturing process of photovoltaic cells in the semiconductor industry, it is a crucial process operation to use solder tapes to weld multiple solar cells. In this process, the ability to precisely cut the solder tape is of great significance for ensuring the welding quality of the solar cells and improving production efficiency.

[0003] However, the current existing solder tape cutting technology has the following deficiencies: when some cutting devices are in a non-working state, their cutting components cannot be properly hidden and are directly exposed in the surrounding area of the solder tape. This situation not only easily interferes with other components during the production process, thereby disturbing the normal operation of the equipment, but also may cause accidental damage to the solder tape, ultimately leading to a decline in the quality of the solder tape and a reduction in its usability. Summary of the Invention

[0004] The object of the present invention is to provide a cutting method to solve the problem of limited space in the working scenario caused by the existing cutting equipment directly achieving material cutting through simple opposite movement.

[0005] The technical solution of the present invention is: a cutting method, which uses a first cutter and a second cutter that are fitted together in a working state to form a cutting structure; the first cutter has a first cutting edge portion, the second cutter includes a connecting portion and a cutting portion, the cutting portion protrudes from the connecting portion in the length direction of the first cutting edge portion, and the cutting portion has a second cutting edge portion;

[0006] The cutting method is as follows:

[0007] S1. In the initial state, the first cutting edge portion and the second cutting edge portion are on the same side of the cutting linear body, and the first cutting edge portion faces the cutting linear body, while the second cutting edge portion faces away from the cutting linear body;

[0008] S2. The second cutting edge portion moves to the other side of the cutting linear body that is mirror-imaged to the initial state by lateral and / or longitudinal displacement to avoid the cutting linear body, and the second cutting edge portion faces the cutting linear body;

[0009] S3. Relative movement occurs between the first cutter and / or the second cutter and the cutting linear body, so that the cutting linear body abuts against the first cutting edge portion or the second cutting edge portion abuts against the cutting linear body;

[0010] S4. The second cutting edge portion and the first cutting edge portion move towards each other separately or simultaneously and pass through the cutting linear body to complete the cutting.

[0011] Preferably, during the cutting process, the first blade portion and the cutting wire body are always at a set height, and the cutting wire body is always abutted against the first blade portion, and the second cutter always operates in steps S2 - S4.

[0012] Preferably, the movement path of the second blade portion is configured as a closed path, and the area traversed by the movement path covers the area where the cutting wire body abuts against the first blade portion.

[0013] Preferably, in step S3, a plurality of the cutting wire bodies are provided, and the number of the second blade portions is not less than the number of the cutting wire bodies; the plurality of second blade portions are distributed along the length direction of the first blade portion.

[0014] Preferably, after the second cutter moves in step S2, the width of the overall structure protruding from the first blade portion is smaller than the distance between adjacent cutting wire bodies.

[0015] Preferably, the first cutter has a continuous single first blade portion.

[0016] Preferably, the first cutter has a plurality of segmented first blade portions.

[0017] Preferably, the length of each second blade portion is not less than the width of the cutting wire body.

[0018] Preferably, the length of each segmented first blade portion is not less than the width of the cutting wire body.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] Based on the fact that the first cutter and the second cutter are on the same side of the cutting wire body in the initial state, by performing the relative movement between the first cutter, the second cutter, and the cutting wire body, the cutting action of the first cutter and the second cutter on the cutting wire body is realized; based on this cutting method, it is realized that the first cutter and the second cutter are hidden under the cutting wire body in the non - working state and do not affect the execution of other processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the drawings and embodiments:

[0022] Figure 1 is the action flow chart corresponding to a cutting method described in Embodiment 1 of the present invention;

[0023] Figure 2 is the schematic diagram of the movement path in a cutting method described in Embodiment 1 of the present invention;

[0024] Figure 3It is the action flow chart corresponding to a cutting method described in Embodiment 2 of the present invention;

[0025] Figure 4 It is the schematic diagram of the movement path in a cutting method described in Embodiment 2 of the present invention;

[0026] Figure 5 It is the schematic diagram of the movement path in a cutting method described in Embodiment 3 of the present invention;

[0027] Figure 6 It is the schematic diagram of the second cutting knife at the lower extreme limit when multiple second cutting knives and a single first cutting knife are provided as described in the present invention;

[0028] Figure 7 It is the schematic diagram of the second cutting knife at the upper extreme limit when multiple second cutting knives and a single first cutting knife are provided as described in the present invention;

[0029] Figure 8 It is the schematic diagram of the second cutting knife at the lower extreme limit when multiple first cutting knives and multiple second cutting knives are provided as described in the present invention.

[0030] Wherein: 001, loading area, 003, cutting linear body;

[0031] 1, first cutting knife, 11, first cutting edge part;

[0032] 2, second cutting knife, 201, connecting part, 202, cutting part, 21, second cutting edge part. Specific embodiments

[0033] The following combines specific embodiments to further elaborate on the content of the present invention:

[0034] As Figure 1 shown, a cutting method is performed by a cutting structure composed of a first cutting knife 1 and a second cutting knife 2 that are attached to each other in the working state; wherein, the first cutting knife 1 has a first cutting edge part 11, the second cutting knife 2 includes a connecting part 201 and a cutting part 202, the cutting part 202 protrudes from the connecting part 201 in the length direction of the first cutting edge part 11, and the cutting part 202 has a second cutting edge part 21.

[0035] It should be noted that the fact that the first cutting knife 1 and the second cutting knife 2 are attached to each other in the working state means that: when the first cutting knife 1 and the second cutting knife 2 perform the cutting action, the opposite end faces are attached; of course, in the non-cutting state, the end faces of the first cutting knife 1 and the second cutting knife 2 can be attached or coplanar but misaligned, that is Figure 1 the state shown in

[0036] Regarding the cutting method, the following implementation manners can be adopted:

[0037] Example 1

[0038] S1. As shown in Figure 1 , a loading area 001 for carrying the material to be cut is set on the first blade part 11. In the initial state, the working height during cutting is set. Specifically, as shown by the dotted line in Figure 1 , at this time, since the cutting wire 003 performs actions at other workstations, it is set that in the initial state, the cutting wire 003 is above the working height. Therefore, the first blade part 11 and the second blade part 21 are on the same side of the cutting wire 003, and the first blade part 11 faces the cutting wire 003 while the second blade part 21 faces away from the cutting wire 003, that is, both the first cutter 1 and the second cutter 2 are below the cutting wire 003. Specifically, in this embodiment, the first blade part 11 is at the working height, and thus, in the subsequent working process, the second cutter 2 always performs actions. In the initial state, it is set that the second cutter 2 is at the lower limit position in the height direction.

[0039] S2. The second cutter 2 moves to the other side of the cutting wire 003 that is mirror-imaged to the initial state by lateral and / or longitudinal displacement to avoid the cutting wire 003, so that the second blade part 21 faces the cutting wire 003. That is, as shown in Figure 2 , the second cutter 2 moves along the first path (the thick solid line in the figure) from the lower limit position to the upper limit position. In this embodiment, the first path includes a horizontal path segment and a vertical path segment. At this time, as shown in Figure 1 , there is no overlap between the orthographic projection of the second blade part 21 in the length direction of the first blade part 11 and the loading area 001.

[0040] S3. The cutting wire 003 moves towards the first cutter 1 and reaches the working height, so that the cutting wire 003 abuts on the first blade part 11. Based on the initial state in step S1, in this step, the cutting wire 003 moves downward and abuts on the loading area 001.

[0041] S4. As shown in Figure 2 , the second blade part 21 moves along the preset second path (the dotted and solid line in the figure), and continues to move from the upper limit position to the lower limit position. The second path also includes a horizontal path segment and a vertical path segment. As shown in Figure 1 , during the vertical downward movement, the second cutter 2 passes through the cutting wire 003 to complete the cutting.

[0042] During the entire above-mentioned execution cycle, the movement path of the second cutting knife 2 is configured as a closed path, and the area traversed by the movement path covers the area where the cutting linear body 003 abuts against the first cutting edge portion 11, that is, the loading area 001. Specifically, it can be understood that in this embodiment, the first path and the second path form a closed path area. The second cutting knife 2 moves along the second path to perform the cutting action, that is, to complete the "cutting process"; the second cutting knife 2 moves along the first path to realize the reset of the second cutting knife 2, that is, to complete the "reset process". In order to smoothly perform the cutting action, the running path of the second cutting edge portion 21 during the downward cutting execution covers the loading area 001.

[0043] In this embodiment, relative movement occurs between the first cutting knife 1 and / or the second cutting knife 2 and the cutting linear body 003 in step S3; of course, during the actual working process, in step S1, in the initial state, the cutting linear body 003 can be directly at the working height and be loaded on the loading area 001 of the first cutting edge portion 11; subsequently, the cutting of the cutting linear body 003 can be directly completed by the action of the second cutting knife 2.

[0044] Embodiment 2

[0045] S1. As Figure 3 shown, in the initial state, set the working height during cutting. Specifically, as shown by the dotted line in Figure 3 , the first cutting edge portion 11 and the second cutting edge portion 21 are on the same side of the cutting linear body 003, and the first cutting edge portion 11 faces the cutting linear body 003, and the second cutting edge portion 21 faces away from the cutting linear body 003, that is, both the first cutting knife 1 and the second cutting knife 2 are below the cutting linear body 003.

[0046] S2. The second cutting edge portion 21 moves to the other side of the cutting linear body 003 that is mirror-imaged to the initial state by lateral and / or longitudinal displacement to avoid the cutting linear body 003, and the second cutting edge portion 21 faces the cutting linear body 003; in this embodiment, the difference from Embodiment 1 is that, as shown in Figure 4 , the first path of the second cutting knife 2 is configured as an arc-shaped structure. At this time, after the second cutting knife 2 moves from the lower limit position to the upper limit position, the orthographic projection of the second cutting edge portion 21 in the length direction of the first cutting edge portion 11 coincides with the loading area 001.

[0047] S3. The cutting linear body 003 moves towards the first cutting knife 1 and reaches the working height, so that the cutting linear body 003 abuts against the first cutting edge portion 11. At this time, the orthographic projection of the second cutting edge portion 21 in the length direction of the first cutting edge portion 11 coincides with the cutting linear body 003.

[0048] S4. Combine Figure 4As shown, the second blade portion 21 moves along a preset second path (the solid and dashed lines in the figure), continuing to move from the upper limit position to the lower limit position. The second path includes a vertical path segment. Combining Figure 4 As shown, during the vertical downward movement, the second cutter 2 passes through the cutting linear body 003 to complete the cutting.

[0049] Of course, in other embodiments, the first path and the second path can also form a closed circular path, so that the second cutter 2 always reciprocates between the upper limit position and the lower limit position. In more other embodiments, the first path and the second path can be any linear structure, as long as it is ensured that the cutting linear body 003 can be passed through during the movement along the second path.

[0050] Embodiment 3

[0051] S1. As Figure 5 As shown, in the initial state, the working height is set. The cutting linear body 003 is at the working height. The first blade portion 11 and the second blade portion 21 are on the same side of the cutting linear body 003, that is, both are below the cutting linear body 003. At this time, the first blade portion 11 faces the cutting linear body 003, and the second blade portion 21 faces away from the cutting linear body 003.

[0052] S2. The second blade portion 21 moves to the other side of the first blade portion 11 that is mirror-imaged to the initial state by lateral and / or longitudinal displacement to avoid the cutting linear body 003, that is, the second blade portion 21 moves above the first blade portion 11.

[0053] S3. Relative movement occurs between the first cutter 1 and the second cutter 2 and the cutting linear body 003, so that the cutting linear body 003 abuts against the first blade portion 11; in this embodiment, the first cutter 1 and the second cutter 2 rise synchronously, so that the first blade portion 11 is at the working height. In other embodiments, the cutting linear body 003 can also abut against the second blade portion 21, that is, the second blade portion 21 is at the working height.

[0054] S4. The second blade portion 21 moves alone towards the first blade portion 11, passes through the cutting linear body 003 to complete the cutting. If the cutting linear body 003 abuts against the second blade portion 21, the first blade portion 11 can move alone towards the second blade portion 21.

[0055] In summary, in Embodiment 1 and Embodiment 2, the first cutter 1 is always at the set working height, and the second cutter 2 performs the cutting action. The difference between Embodiment 3 and Embodiments 1-2 is that: the cutting linear body 003 is always at the set working height, and the complete cutting action is performed through the movement of the first cutter 1 and the second cutter 2.

[0056] In the above embodiments, taking a single first blade portion 11 and a single second blade portion 21 as an example, they are used to perform the cutting of the linear body 003; in the actual application scenario, in the photovoltaic cell manufacturing process, there are several parallel solder tapes, and after welding, all the solder tapes need to be cut. Therefore, when there are multiple linear bodies 003 to be cut, the number of the second blade portions 21 is not less than the number of the linear bodies 003; the multiple second blade portions 21 are distributed along the length direction of the first blade portion 11.

[0057] As Figure 6 , Figure 7 shown, the multiple second cutters 2 move synchronously, and during the process of reaching the upper limit position from the lower limit position, the second blade portion 21 reaches above the first blade portion 11 from below the first blade portion 11. At this time, each second cutter 2 must move between adjacent linear bodies 003. Therefore, the width d1 of the overall structure where the second cutter 2 protrudes from the first blade portion 11 after movement must be less than the distance d2 between adjacent linear bodies 003. Furthermore, based on the above-mentioned same cutting method, the multiple second cutters 2 move synchronously and respectively cut each linear body 003.

[0058] When there are multiple linear bodies 003 to be cut, in one embodiment, as Figure 6 , Figure 7 shown, the first cutter 1 can be set to have a coherent single first blade portion 11. Structurally speaking, in order to ensure that the second cutter 2 can effectively complete the cutting, the length of each second blade portion 21 is not less than the width of the linear body 003. Methodologically speaking, that is, the area traversed by the movement path of the second blade portion 21 covers the area where the linear body 003 abuts on the first blade portion 11.

[0059] In other embodiments, as Figure 8 shown, the first cutter 1 can also have multiple segmented first blade portions 11, and the length of each segmented first blade portion 11 is not less than the width of the linear body 003. The number of the first cutters 1 can be the same as the number of the solder tapes. Of course, a setting method can be adopted where two solder tapes are carried on one first cutter 1, and the specific number is not limited, as long as it is ensured that when the first blade portion 11 and the second blade portion 21 coincide during the relative movement of the first cutter 1 and the second cutter 2, the solder tape can be cut.

[0060] In this application, based on the fact that the first cutter 1 and the second cutter 2 are on the same side of the linear body 003 in the initial state, by performing the relative movement among the first cutter 1, the second cutter 2, and the linear body 003, the cutting action of the first cutter 1 and the second cutter 2 on the linear body 003 is realized; based on this cutting method, the first cutter 1 and the second cutter 2 are hidden below the linear body 003 in the non-working state, without affecting the execution of other processes.

[0061] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly. It is not intended to limit the protection scope of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A cutting method, characterized in that, A cutting structure is formed by a first cutting knife (1) and a second cutting knife (2) which are arranged in a fitting manner during the working state; the first cutting knife (1) has a first blade part (11), the second cutting knife (2) includes a connecting part (201) and a cutting part (202), the cutting part (202) protrudes from the connecting part (201) in the length direction of the first blade part (11), and the cutting part (202) has a second blade part (21); The cutting method is as follows: S1. In the initial state, the first blade part (11) and the second blade part (21) are on the same side of the cutting linear body (003), and the first blade part (11) faces the cutting linear body (003), while the second blade part (21) faces away from the cutting linear body (003); S2. The second blade part (21) moves to the other side of the cutting linear body (003) which is mirror-imaged to the initial state by lateral and / or longitudinal displacement to avoid the cutting linear body (003), and the second blade part (21) faces the cutting linear body (003); S3. Relative movement occurs between the first cutting knife (1) and / or the second cutting knife (2) and the cutting linear body (003), so that the cutting linear body (003) abuts against the first blade part (11) or the second blade part (21) abuts against the cutting linear body (003); S4. The second blade part (21) and the first blade part (11) move towards each other alone or simultaneously, and pass through the cutting linear body (003) to complete the cutting.

2. The cutting method according to claim 1, characterized in that: During the cutting process, the first blade part (11) and the cutting linear body (003) are always at a set height, and the cutting linear body (003) always abuts against the first blade part (11), and the second cutting knife (2) always acts in steps S2 - S4.

3. The cutting method according to claim 2, wherein: The movement path of the second blade part (21) is constructed as a closed path, and the area traversed by the movement path covers the area where the cutting linear body (003) abuts against the first blade part (11).

4. A cutting method according to claim 1, characterized in that: In step S3, there are multiple cutting linear bodies (003) arranged, and the number of the second blade parts (21) is not less than the number of the cutting linear bodies (003); the multiple second blade parts (21) are distributed along the length direction of the first blade part (11).

5. A cutting method according to claim 4, characterized in that: After the second cutting knife (2) moves in step S2, the width of the overall structure protruding from the first blade part (11) is smaller than the distance between adjacent cutting linear bodies (003).

6. A cutting method according to claim 4, characterized in that: The first cutting knife (1) has a continuous single first blade part (11).

7. A cutting method according to claim 4, characterized in that: The first cutting knife (1) has multiple segmented first blade parts (11).

8. A cutting method according to claim 6 or 7, characterized in that: The length of each second blade part (21) is not less than the width of the cutting linear body (003).

9. A cutting method according to claim 7, characterized in that: The length of each segmented first blade part (11) is not less than the width of the cutting linear body (003).

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