Tape cutting mechanism and drawstring cutting device

Abstract

The utility model relates to the technical field of photovoltaic cell string production, in particular to a tape cutting mechanism and a drawstring cutting device. The strip cutting mechanism comprises an upper cutter, a lower cutter and a moving plate, the moving plate can horizontally move in the length direction of the welding strip and in the direction perpendicular to the length direction of the welding strip, the upper cutter and the lower cutter are arranged on the moving plate, and a notch is formed in the upper cutter and / or the lower cutter; and the upper cutter and the lower cutter move relatively to cut off the welding strips which are not aligned with the notches and are positioned at odd-numbered positions or even-numbered positions. The strip pulling and cutting device comprises a strip pulling mechanism, a strip pressing mechanism and a strip cutting mechanism which are arranged in sequence, the strip pulling mechanism is used for pulling welding strips, the strip cutting mechanism is arranged between the strip pulling mechanism and the strip pressing mechanism and used for cutting off the welding strips located at odd-numbered positions or even-numbered positions, and the strip pressing mechanism comprises a first strip pressing assembly and a second strip pressing assembly. The first strip pressing assembly and the second strip pressing assembly are used for pressing or loosening the welding strips located at the odd number positions and the even number positions correspondingly.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cell string production, in particular to a tape cutting mechanism and a tape cutting device. Background Art

[0002] Utility model patent CN214705958U discloses a two-way welding tape pulling device, comprising: a tape supply device, a tape pulling hand for pulling out the welding tape provided by the tape supply device, a cutting hand for cutting the welding tape pulled out by the tape pulling hand, and a translation mechanism for driving the tape pulling hand and the cutting hand to move horizontally; the tape supply device is located on both sides of the tape pulling hand; clamping claws are provided on both sides of the tape pulling hand, and the clamping claws are installed back to back and staggered; the positions of the welding tape supply ports of the tape supply devices located on both sides of the tape pulling hand correspond to the positions of the clamping claws on the opposite side respectively; the tape pulling hand pulls out the welding tape from the left and right sides respectively, and cuts the welding tape in an alternating arrangement.

[0003] In the above-mentioned tape pulling method, each cutting hand cuts one group of solder ribbons at a time, and two cutting hands are required to cooperate with the tape pulling hand that pulls out the solder ribbons in two directions to cut the two groups of solder ribbons in sequence, resulting in a complex device structure. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a drawstring cutting device.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] On the one hand, the utility model provides a tape cutting mechanism, including an upper cutter, a lower cutter and a movable plate, wherein the movable plate can move horizontally along the length direction of the welding strip and perpendicular to the length direction of the welding strip, the upper cutter and the lower cutter are arranged on the movable plate, and the upper cutter and / or the lower cutter are provided with notches, and the upper cutter and the lower cutter move relative to each other to cut off the welding strip that is not aligned with the notch and is in an odd or even position.

[0007] Optionally, a positioning groove is provided on the upper cutter or the lower cutter, and the positioning groove is staggered with the notch.

[0008] Optionally, the tape cutting mechanism also includes a motor, a first side plate and a second side plate, the motor is fixed to the movable plate, the upper cutter is mounted on the first side plate and is located below the first side plate, the lower cutter is mounted on the second side plate and is located below the second side plate, the first side plate and the movable plate slide up and down, the second side plate is fixed to the movable plate, and the first side plate is connected to the rotating shaft of the motor through a cam.

[0009] Optionally, the tape cutting mechanism also includes a motor, a first side plate and a second side plate, the motor is fixed to the movable plate, the upper cutter is mounted on the first side plate and is located below the first side plate, the lower cutter is mounted on the second side plate and is located below the second side plate, the first side plate and the second side plate are both slidably engaged with the movable plate up and down, and the first side plate and the second side plate are both connected to the rotating shaft of the motor through cam engagement.

[0010] On the other hand, the utility model provides a tape pulling and cutting device, comprising a tape pulling mechanism, a tape pressing mechanism and a tape cutting mechanism arranged in sequence, wherein the tape pulling mechanism is used to pull the welding tape, and the tape cutting mechanism is arranged between the tape pulling mechanism and the tape pressing mechanism, and is used to cut off the welding tape located at odd or even positions, and the tape pressing mechanism comprises a first tape pressing assembly and a second tape pressing assembly, and the first tape pressing assembly and the second tape pressing assembly are respectively used to press or release the welding tape located at odd and even positions.

[0011] Optionally, the first belt pressing assembly includes a first cylinder body and a first base plate arranged at the bottom of the first cylinder body, the first cylinder body and the first base plate are provided with a first guide groove for the welding strip to pass through, the first cylinder body is provided with a first piston assembly, the first piston assembly is correspondingly arranged above the first guide groove located at the odd position, and the piston rod of the first piston assembly is used to press the welding strip in the first guide groove located at the odd position.

[0012] Optionally, the second belt pressing assembly includes a second cylinder body and a second base plate arranged at the bottom of the second cylinder body, the second cylinder body and the second base plate are provided with a second guide groove for the welding strip to pass through, the second cylinder body is provided with a second piston assembly, the second piston assembly is correspondingly arranged above the second guide groove located at an even position, and the piston rod of the second piston assembly is used to press the welding strip in the second guide groove located at an even position.

[0013] Optionally, the strip pulling mechanism includes a movable seat and a clamp provided on the movable seat, the number of the clamps is consistent with the number of the welding strips, and the movable seat can move back and forth along the length direction of the welding strip.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0015] The utility model provides a tape cutting mechanism comprising an upper cutter, a lower cutter, and a movable plate. The upper cutter and the lower cutter are arranged on the movable plate, and the upper cutter and / or the lower cutter are provided with notches. During cutting, the movable plate drives the upper cutter and the lower cutter to move, aligning the notches with the soldering strips located at even or odd positions. The upper cutter and the lower cutter move relative to each other, respectively cutting the soldering strips located at odd or even positions that are not aligned with the notches. The utility model provides a tape drawing and cutting device, which, through the coordinated cooperation of the tape cutting mechanism and the tape drawing mechanism, can cut misaligned soldering strips using a set of upper and lower cutters. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the arrangement of the welding strips cut by the strip cutting device of the utility model;

[0017] Figure 2 This is a front view of one embodiment of the tape cutting mechanism of the present invention;

[0018] Figure 3 This is a side view of one embodiment of the tape cutting mechanism of the present invention;

[0019] Figure 4 This is a schematic diagram of one of the positional relationships among the upper cutter, lower cutter, and welding strip in the present invention;

[0020] Figure 5 This is another schematic diagram of the positional relationship between the upper cutter, the lower cutter and the welding strip in the utility model;

[0021] Figure 6 This is a schematic diagram of a working state of the drawstring cutting device of the utility model;

[0022] Figure 7 It is an angled schematic diagram of the first pressing belt assembly in the present utility model;

[0023] Figure 8 It is an angled schematic diagram of the second pressing belt assembly in the present utility model;

[0024] Figure 9 It is a three-dimensional diagram of the pull belt mechanism in the utility model.

[0025] Among them: 10, welding tape; 20, tape pulling mechanism; 21, movable seat; 22, clamp; 30, tape cutting mechanism; 31, upper cutter; 32, lower cutter; 33, movable plate; 34, motor; 35, first side plate; 36, second side plate; 37, notch; 38, positioning groove; 40, tape pressing mechanism; 41, first tape pressing assembly; 411, first cylinder body; 412, first bottom plate; 413, first air inlet connector; 414, first guide groove; 42, second tape pressing assembly; 421, second cylinder body; 422, second bottom plate; 423, second air inlet connector; 424, second guide groove. DETAILED DESCRIPTION

[0026] The technical solution and technical effects of the present invention are further described in detail below in conjunction with the accompanying drawings of the present invention.

[0027] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated; they can be directly connected, or indirectly connected through an intermediate medium; they can be internal communication between two elements or an interactive relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In the description of this embodiment, relational terms such as first and second are merely used to distinguish the first feature from the second feature, and do not necessarily require or imply any actual relationship or order between these features.

[0028] like Figure 1 As shown, the solder ribbons 10 are divided into two groups, one of which is located at odd positions and the other is located at even positions. The two groups of solder ribbons 10 are staggered. The staggered solder ribbons 10 are cut into multiple groups of solder ribbon segments, which can be used to produce back-contact battery strings.

[0029] like Figure 2-Figure 5 As shown, in order to be able to cut the solder strips 10 arranged in the above manner, the present invention proposes a cutting mechanism 30, which includes an upper cutter 31, a lower cutter 32 and a movable plate 33. The movable plate 33 can move horizontally along the length direction of the solder strip 10 and perpendicular to the length direction of the solder strip 10. The upper cutter 31 and the lower cutter 32 are arranged on the movable plate 33. The upper cutter 31 and / or the lower cutter 32 are provided with notches 37. The upper cutter 31 and the lower cutter 32 move relative to each other to cut off the solder strips 10 that are not aligned with the notches 37 and are in odd or even positions. During cutting, the cutting mechanism 30 cuts in two steps, for example, first cutting the solder strips 10 in even positions and then cutting the solder strips 10 in odd positions. When the cutting mechanism 30 is in the even-numbered cutting position, the notch 37 is aligned with the welding ribbon 10 in the odd-numbered position. When the cutting mechanism 30 is in the odd-numbered cutting position, the notch 37 is aligned with the welding ribbon 10 in the even-numbered position. The even-numbered and odd-numbered cutting positions are offset from each other in the length direction of the welding ribbon 10. The upper cutter 31 and the lower cutter 32 are moved by moving the movable plate 33. The movable plate 33 is connected to a driving member, which includes two driving units, respectively, to drive the movable plate 33 to move horizontally in the length direction of the welding ribbon 10 and perpendicular to the length direction of the welding ribbon 10.

[0030] In an optional embodiment of the present invention, a positioning groove 38 is provided on the upper cutter 31 or the lower cutter 32. The positioning groove 38 is offset from the notch 37. The positioning groove 38 prevents the solder ribbon 10 from shifting during cutting and is used to confirm the position of the solder ribbon 10 when threading the solder ribbon 10. Preferably, the notch 37 is provided on the upper cutter 31, which has a blade, and the positioning groove 38 is provided on the lower cutter 32.

[0031] In this embodiment, the tape cutting mechanism 30 also includes a motor 34, a first side plate 35 and a second side plate 36. The motor 34 is fixed on the movable plate 33. The upper cutter 31 is installed on the first side plate 35 and is located below the first side plate 35. The lower cutter 32 is installed on the second side plate 36 and is located below the second side plate 36. The first side plate 35 and the second side plate 36 both slide up and down with the movable plate 33. The first side plate 35 and the second side plate 36 are both connected to the rotating shaft of the motor 34 through a cam, so that the upper cutter 31 and the lower cutter 32 can move oppositely at the same time to cut the welding tape 10.

[0032] In another embodiment of the present invention, the tape cutting mechanism 30 also includes a motor 34, a first side plate 35 and a second side plate 36. The motor 34 is fixed on the movable plate 33. The upper cutter 31 is installed on the first side plate 35 and is located below the first side plate 35. The lower cutter 32 is installed on the second side plate 36 and is located below the second side plate 36. The first side plate 35 slides up and down with the movable plate 33, and the second side plate 36 is fixed to the movable plate 33. The first side plate 35 is connected to the rotating shaft of the motor 34 through a cam. The upper cutter 31 moves toward the lower cutter 32 to cut off the welding strip 10.

[0033] like Figure 6 As shown, the utility model also provides a tape pulling and cutting device, which includes a tape pulling mechanism 20, a tape pressing mechanism 40 and a tape cutting mechanism 30 arranged in sequence. The tape pulling mechanism 20 is used to pull the welding tape 10. The tape cutting mechanism 30 is arranged between the tape pulling mechanism 20 and the tape pressing mechanism 40, and is used to cut off the welding tape 10 located at odd or even positions. The tape pressing mechanism 40 includes a first tape pressing component 41 and a second tape pressing component 42. The first tape pressing component 41 and the second tape pressing component 42 are used to press or release the welding tape 10 located at odd and even positions, respectively.

[0034] It should be noted that there is no restriction on the order in which the welding ribbon 10 passes through the first belt pressing assembly 41 and the second belt pressing assembly 42. The first belt pressing assembly 41 is located between the second belt pressing assembly 42 and the tape cutting mechanism 30, or the second belt pressing assembly 42 is located between the first belt pressing assembly 41 and the tape cutting mechanism 30.

[0035] During use, after the welding ribbon 10 passes through the first belt pressing assembly 41 and the second belt pressing assembly 42, the tape cutting mechanism 30 is actuated to cut the welding ribbon 10 at the odd and even positions twice, so that the ends of the welding ribbon 10 are misaligned. Then the tape pulling mechanism 20 clamps the end of the welding ribbon 10 away from the tape cutting mechanism 30, and pulls the welding ribbon 10 out to a predetermined length. The tape cutting mechanism 30 moves to the even-numbered cutting position and cuts off the welding ribbon 10 at the even-numbered positions. The tape cutting mechanism 30 then moves away from the tape pulling mechanism 20 and moves to the odd-numbered cutting position to cut off the welding ribbon 10 at the odd-numbered positions.

[0036] In other embodiments of the present invention, the total number of the welding strips 10 may be an odd number, and there is no limitation on the staggered arrangement of the welding strips 10 .

[0037] like Figure 7-Figure 8 As shown, in the present invention, the first belt pressing assembly 41 includes a first cylinder body 411 and a first base plate 412 arranged at the bottom of the first cylinder body 411, and the first cylinder body 411 and the first base plate 412 are provided with a first guide groove 414 for the welding tape 10 to pass through. A first piston assembly is provided in the first cylinder body 411, and the first piston assembly is correspondingly arranged above the first guide groove 414 located at the odd position. The piston rod of the first piston assembly is used to press the welding tape 10 in the first guide groove 414 located at the odd position, and a first air inlet connector 413 is provided on the first cylinder body 411, and the first air inlet connector 413 is connected to the air source to provide gas to the first piston assembly. The second belt pressing assembly 42 includes a second cylinder body 421 and a second base plate 422 arranged at the bottom of the second cylinder body 421, and a second guide groove 424 for the welding tape 10 to pass through is provided on the second cylinder body 421 and the second base plate 422. A second piston assembly is provided in the second cylinder body 421, and the second piston assembly is correspondingly arranged above the second guide groove 424 located at the even-numbered position. The piston rod of the second piston assembly is used to press the welding tape 10 in the second guide groove 424 located at the even-numbered position. A second air inlet connector 423 is provided on the second cylinder body 421, and the second air inlet connector 423 is connected to the air source to provide gas to the second piston assembly.

[0038] like Figure 9 As shown, in the present invention, the strip pulling mechanism 20 includes a movable seat 21 and a clamp 22 arranged on the movable seat 21. The number of the clamps 22 is consistent with the number of the welding strips 10. The movable seat 21 can move back and forth along the length direction of the welding strip 10.

[0039] The above disclosure is only a preferred embodiment of the present invention, and it is certainly not intended to limit the scope of the rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A tape cutting mechanism, characterized in that: The invention comprises an upper cutter (31), a lower cutter (32) and a movable plate (33); the movable plate (33) can move horizontally along the length direction of the welding strip (10) and perpendicular to the length direction of the welding strip (10); the upper cutter (31) and the lower cutter (32) are arranged on the movable plate (33); the upper cutter (31) and / or the lower cutter (32) are provided with a notch (37); the upper cutter (31) and the lower cutter (32) move relative to each other to cut off the welding strip (10) that is not aligned with the notch (37) and is in an odd or even position.

2. The tape cutting mechanism according to claim 1, characterized in that: A positioning groove (38) is provided on the upper cutting knife (31) or the lower cutting knife (32), and the positioning groove (38) and the notch (37) are arranged in a staggered manner.

3. The tape cutting mechanism according to claim 1, characterized in that: The invention also includes a motor (34), a first side plate (35) and a second side plate (36), wherein the motor (34) is fixed on the movable plate (33), the upper cutter (31) is mounted on the first side plate (35) and is located below the first side plate (35), the lower cutter (32) is mounted on the second side plate (36) and is located below the second side plate (36), the first side plate (35) and the movable plate (33) are slidably matched up and down, the second side plate (36) and the movable plate (33) are fixed, and the first side plate (35) and the rotating shaft of the motor (34) are connected by a cam.

4. The tape cutting mechanism according to claim 1, characterized in that: The invention also includes a motor (34), a first side plate (35) and a second side plate (36), wherein the motor (34) is fixed on the movable plate (33), the upper cutter (31) is mounted on the first side plate (35) and is located below the first side plate (35), the lower cutter (32) is mounted on the second side plate (36) and is located below the second side plate (36), the first side plate (35) and the second side plate (36) are both slidably matched with the movable plate (33) up and down, and the first side plate (35) and the second side plate (36) are both connected to the rotating shaft of the motor (34) through cam matching.

5. A drawstring cutting device, characterized in that: The invention comprises a tape pulling mechanism (20), a tape pressing mechanism (40) and a tape cutting mechanism (30) as described in any one of claims 1 to 4, which are arranged in sequence. The tape pulling mechanism (20) is used to pull the welding tape (10). The tape cutting mechanism (30) is arranged between the tape pulling mechanism (20) and the tape pressing mechanism (40) and is used to cut the welding tape (10) located at an odd position or an even position. The tape pressing mechanism (40) comprises a first tape pressing component (41) and a second tape pressing component (42). The first tape pressing component (41) and the second tape pressing component (42) are used to press or release the welding tape (10) located at an odd position or an even position, respectively.

6. The draw tape cutting device according to claim 5, characterized in that: The first belt pressing assembly (41) includes a first cylinder (411) and a first base plate (412) arranged at the bottom of the first cylinder (411); the first cylinder (411) and the first base plate (412) are provided with a first guide groove (414) for the welding belt (10) to pass through; a first piston assembly is provided in the first cylinder (411); the first piston assembly is correspondingly arranged above the first guide groove (414) located at an odd position; the piston rod of the first piston assembly is used to press the welding belt (10) located in the first guide groove (414) located at an odd position.

7. The draw tape cutting device according to claim 5, characterized in that: The second belt pressing assembly (42) includes a second cylinder (421) and a second base plate (422) arranged at the bottom of the second cylinder (421); the second cylinder (421) and the second base plate (422) are provided with a second guide groove (424) for the welding belt (10) to pass through; a second piston assembly is provided in the second cylinder (421); the second piston assembly is correspondingly arranged above the second guide groove (424) located at an even position; the piston rod of the second piston assembly is used to press the welding belt (10) in the second guide groove (424) located at an even position.

8. The draw tape cutting device according to claim 5, characterized in that: The strip pulling mechanism (20) comprises a movable seat (21) and a clamp (22) arranged on the movable seat (21); the number of the clamps (22) is consistent with the number of the welding strips (10); and the movable seat (21) is capable of reciprocating along the length direction of the welding strip (10).

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