Locking mechanism and solder strip group supply device

Abstract

The utility model belongs to the technical field of photovoltaic module production, and discloses a locking mechanism and a solder strip group supply device. Wherein a supporting plate is installed on the supporting frame, a groove is formed in the supporting plate, a welding strip penetrates through the groove, a pressing tool is further installed on the supporting frame and comprises a base plate, a first through hole is formed in the base plate, a top plate is connected to one side of the first through hole in a covering mode, a pressing rod penetrates through the first through hole, a piston is connected to the pressing rod in a sleeved mode, and the piston abuts against the inner wall of the first through hole. The upper side of the piston abuts against the top plate through a spring, the pressing rod is connected with the pressing block, the pressing block is inserted into the groove, and an air chamber is defined by the lower side of the piston and communicated with an air source through an air path electromagnetic valve. The problem that in the prior art, after a supply device is powered off, a welding strip is recovered by a heavy hammer and is separated from a groove of a pressing mechanism is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic module production, in particular to a locking mechanism and a solder ribbon group supply device. Background Art

[0002] A photovoltaic panel is composed of a plurality of photovoltaic cell strings electrically connected to each other, and each photovoltaic cell string is composed of a plurality of photovoltaic cells connected in series. At present, the form of forming a cell string by connecting cells in series is mainly completed through a solder ribbon group, and multiple solder ribbons connect the front electrodes and back electrodes of adjacent cells.

[0003] When the solder ribbon group is prepared on the supply device, the solder ribbon needs to be pulled out from the solder ribbon coil, and then cut on the tape-making platform. In the middle, a pressing mechanism continuously pulls the solder ribbon from the solder ribbon coil. In order to ensure the straightness of the solder ribbon supply, a weight will be set at the delivery end of the solder ribbon coil. However, if the supply device encounters unexpected situations such as power failure or gas cut-off during operation, the solder ribbon pressing mechanism will close and separate from the solder ribbon, and the clamping and positioning of the pressing mechanism on the solder ribbon will fail. At this time, the solder ribbon will be pulled back to the side of the solder ribbon coil by the weight mechanism. Since the solder ribbon group is composed of multiple solder ribbons at the same time, each solder ribbon is threaded through the groove of the pressing mechanism in the supply device. If the solder ribbon is pulled back, it will be pulled out of the groove. After the supply device is powered on again, it is necessary to manually insert the solder ribbons into the grooves one by one, and the insertion process is relatively cumbersome, reducing production efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a locking mechanism and a solder ribbon group supply device, which solve the problem that the solder ribbon is recovered by the weight after power failure of the supply device in the prior art and disengages from the groove of the pressing mechanism.

[0005] To achieve the above object, the utility model adopts the following technical solutions: The utility model provides a locking mechanism, including a support frame, a support plate is installed on the support frame, a groove is formed in the support plate, a solder ribbon is threaded through the groove, a pressing tool is also installed on the support frame, the pressing tool includes a substrate, a first through hole is opened in the substrate, a top plate is connected to one side of the first through hole, a pressing rod is threaded through the first through hole, a piston is sleeved on the pressing rod, the piston abuts against the inner wall of the first through hole, the upper side of the piston abuts against the top plate through a spring, the end of the pressing rod is connected to a pressing block, the pressing block is inserted into the groove, an air chamber is surrounded by the lower side of the piston, and the air chamber is communicated with a gas source through a pneumatic solenoid valve.

[0006] Preferably, a first fixing groove is formed on the upper side of the substrate, and the top plate is buckled in the first fixing groove.

[0007] Preferably, a first screw hole is formed in the substrate, and a third through hole is formed in the top plate. A bolt passes through the third through hole and is screwed into the first screw hole.

[0008] Preferably, a second fixing groove is formed on the lower side of the substrate, and the bottom plate is snap-fitted into the second fixing groove.

[0009] Preferably, the bottom plate is fastened to the substrate by bolts.

[0010] Preferably, a plug hole is formed in the pressing block, an internal thread is formed on the inner wall of the plug hole, and the pressing rod is screwed into the plug hole.

[0011] Preferably, two groups of the plug holes are formed in each pressing block. The plug holes correspond to the pressing rods, the first through holes, and the second through holes one by one. The plug holes on the pressing block are arranged along the moving direction of the welding tape.

[0012] Preferably, a fixing groove is formed on the side wall of the support frame. The support frame includes two groups, and the fixing grooves are placed opposite to each other. Both ends of the support plate are inserted into the fixing grooves.

[0013] Preferably, a fourth through hole is formed at the top of the support frame, and a fifth through hole is formed in the substrate. A fixing pin is inserted into the fifth through hole of the substrate, and both ends of the fixing pin are inserted into the fourth through hole.

[0014] A welding tape group supply device includes the locking mechanism described above. The welding tape group supply device includes a transition disk, a pressing mechanism, and a tape making platform. The welding tape sequentially passes through the transition disk, the locking mechanism, the pressing mechanism, and the tape making platform. The transition disk can guide the welding tape, the pressing mechanism can position the welding tape, and the tape making platform can cut the welding tape.

[0015] Beneficial effects: When the welding tape group supply device is working normally, the air path solenoid valve is opened, and the gas in the gas source enters the air chamber. The gas will squeeze the lower side of the pressing rod piston, causing the pressing rod to move upward and compress the spring. At this time, the welding tape in the groove can pass through smoothly. When the welding tape group supply device is closed and the air path solenoid valve is closed, there is no gas in the air chamber, and the spring extends, causing the pressing block to press against the welding tape in the groove to fix the welding tape. The welding tape stays in the groove and the pressing mechanism. When starting the machine again, there is no need to re-insert the welding tape into the pressing mechanism, making the working efficiency higher. Description of the Drawings

[0016] Figure 1 is the main body diagram of the locking mechanism of the present invention;

[0017] Figure 2 is the main body diagram of the welding tape group supply device of the present invention;

[0018] Figure 3 This is a sectional view of the press tool of the present utility model.

[0019] In the figure: 1, support frame; 2, pallet; 21, groove; 3, press tool; 31, base plate; 311, first through hole; 312, limiting part; 32, top plate; 33, bottom plate; 34, pressure rod; 341, piston; 35, spring; 36, pressure block; 37, air chamber; 4, fixing pin; 5, pneumatic solenoid valve; 6, transition disk; 7, pressing mechanism; 8, tape-making platform. Specific embodiments

[0020] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0021] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; 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 elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the first feature has a lower horizontal height than the second feature.

[0023] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0024] Under the existing technology, after the solder tape group supply device is shut down, the holding mechanism is in a closed state and loses its clamping ability. The heavy hammer will pull the solder tape inserted in the holding mechanism back onto the solder tape roll. After restarting the machine, the solder tape needs to be inserted into the holding mechanism again, which wastes production time and reduces efficiency.

[0025] In order to solve the above problems, Figures 1 to 3 As shown, the utility model provides a locking mechanism, which includes a support frame 1, a support plate 2 is installed on the support frame 1, a groove 21 is formed in the support plate 2, a welding strip is inserted in the groove 21, a pressing tool 3 is also installed on the support frame 1, and the pressing tool 3 includes a base plate 31, a first through hole 311 is provided in the base plate 31, and the two sides of the axis of the first through hole 311 are respectively covered with a top plate 32 and a bottom plate 33, so that the top plate 32 and the bottom plate 33 can be disassembled and repaired from the upper and lower sides of the base plate 31, and a pressing rod 34 is inserted in the first through hole 311, and the pressing rod 34 is sleeved A piston 341 is connected, the piston 341 abuts against the inner wall of the first through hole 311, the upper side of the piston 341 abuts against the top plate 32 through the spring 35, a second through hole is formed on the bottom plate 33, the pressure rod 34 is inserted into the second through hole, the end of the pressure rod 34 is connected to the pressure block 36, the pressure block 36 is inserted into the groove 21, and an air chamber 37 is formed between the bottom plate 33 and the base plate 31, the air chamber 37 is connected to the air source through the air circuit solenoid valve 5, and the air source stores high-pressure gas, and the gas can push the piston 341 upward from the air chamber 37 to deform the spring 35. A limiting portion 312 is also formed at the lower end of the first through hole 311, and the piston 341 abuts against the upper side of the limiting portion 312, which can prevent the pressure rod 34 from being ejected from the first through hole 311 by the spring 35, and form a limit for the pressure rod 34.

[0026] When the entire welding tape group supply device is in the normal startup state, the air circuit solenoid valve 5 is opened, and the gas in the air source is transported to the air chamber 37. The gas will abut against the lower side of the piston 341 formed by the pressure rod 34, driving the pressure rod 34 to move upward, and at the same time, the spring 35 can be compressed. At this time, the pressure rod 34 will drive the pressure block 36 to move upward, and the pressure block 36 will not contact the welding tape in the groove 21. The welding tape group supply device includes a transition plate 6, a holding mechanism 7 and a tape making platform 8. The welding tape passes through the transition plate 6, the locking mechanism, the holding mechanism 7 and the tape making platform 8 in sequence, and the welding tape is normally transported to the side of the tape making platform 8.

[0027] When the solder tape group supply device shuts down or stops due to an accident, the pneumatic solenoid valve 5 will close, and at the same time, the gas pressure in the gas chamber 37 will rapidly decrease and become less than the elastic force of the spring 35. As a result, the spring 35 will return from the compressed state to its initial length, and the spring 35 will push the piston 341 downward, causing the pressing block 36 at the lower end of the pressing rod 34 to press against the solder tape in the groove 21, preventing the solder tape from being drawn out towards the transition disk 6 side, keeping the solder tape in the solder tape group supply device stationary. When restarting the machine, there is no need to re-thread the solder tape into the holding mechanism 7, which extends the working time of the solder tape group supply device and improves production efficiency.

[0028] A first fixing groove is formed on the upper side of the substrate 31, and the top plate 32 is buckled in the first fixing groove. The first fixing groove can fix the top plate 32 to prevent the top plate 32 from shaking, and the spring 35 abuts against the lower bottom surface of the top plate 32.

[0029] A first screw hole is formed on the substrate 31, and a third through hole is formed on the top plate 32. The bolt passes through the third through hole and is screwed into the first screw hole. The top plate 32 can be flexibly disassembled by the bolt, facilitating maintenance by the staff.

[0030] A second fixing groove is formed on the lower side of the substrate 31, and the bottom plate 33 is buckled in the second fixing groove. The second fixing groove can fix the bottom plate 33. On the other hand, the bottom plate 33 is fastened to the substrate 31 by bolts, facilitating installation and disassembly by the staff and facilitating maintenance.

[0031] A plug hole is formed on the pressing block 36, and internal threads are formed on the inner wall of the plug hole. The pressing rod 34 is screwed into the plug hole, and the pressing block 36 and the pressing rod 34 are matched by threads, facilitating replacement and maintenance by the staff.

[0032] Each plug hole on the pressing block 36 includes two groups. The plug holes correspond to the pressing rods 34, the first through hole 311, and the second through hole one by one, and the plug holes are arranged along the moving direction of the solder tape. Since the pressing rods 34 are arranged along the conveying direction of the solder tape, when the pressing block 36 presses against the solder tape, the two groups of pressing rods 34 can evenly press against the solder tape through the pressing block 36, preventing the solder tape from coming out.

[0033] Fixing grooves are formed on the side walls of the support frame 1. The support frame 1 includes two groups, and the fixing grooves are placed opposite to each other. Both ends of the support plate 2 are inserted into the fixing grooves, and both sides of the support plate 2 are inserted into the fixing grooves, facilitating extraction and insertion by the staff and facilitating maintenance.

[0034] A fourth through hole is formed at the top of the support frame 1, and a fifth through hole is formed on the substrate 31. The fixing pin 4 is inserted into the fifth through holes at both ends of the substrate 31, and at the same time, both ends of the fixing pin 4 are inserted into the fourth through hole of the support frame 1. If the fixing pin 4 is pulled out, the press tool 3 can be removed from the support frame 1, thereby facilitating the maintenance by the staff.

[0035] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A locking mechanism, characterized in that: The invention comprises a support frame (1), a support plate (2) is mounted on the support frame (1), a groove (21) is formed in the support plate (2), a welding strip is passed through the groove (21), a pressing tool (3) is also mounted on the support frame (1), the pressing tool (3) comprises a base plate (31), a first through hole (311) is formed in the base plate (31), a top plate (32) is connected to one side of the first through hole (311), a pressing rod (34) is passed through the first through hole (311), and the pressing tool (34) is provided in the first through hole (311). The pressure rod (34) is sleeved with a piston (341), and the piston (341) abuts against the inner wall of the first through hole (311). The upper side of the piston (341) abuts against the top plate (32) through a spring (35). The end of the pressure rod (34) is connected to a pressure block (36), and the pressure block (36) is inserted into the groove (21). The lower side of the piston (341) is surrounded by an air chamber (37), and the air chamber (37) is connected to an air source through an air circuit solenoid valve (5).

2. The locking mechanism according to claim 1, characterized in that: A first fixing groove is formed on the upper side of the base plate (31), and the top plate (32) is buckled in the first fixing groove.

3. The locking mechanism according to claim 2, characterized in that: One side of the first through hole (311) is covered with a bottom plate (33), a second through hole is formed on the bottom plate (33), the pressure rod (34) is inserted into the second through hole, and the bottom plate (33) and the base plate (31) enclose the air chamber (37).

4. The locking mechanism according to claim 3, characterized in that: A second fixing groove is formed on the lower side of the base plate (31), and the bottom plate (33) is buckled in the second fixing groove.

5. The locking mechanism according to claim 4, characterized in that: The bottom plate (33) is fastened to the base plate (31) by means of bolts.

6. The locking mechanism according to claim 3, characterized in that: The pressing block (36) is formed with an inserting hole, an inner wall of the inserting hole is formed with an internal thread, and the pressing rod (34) is screwed into the inserting hole.

7. The locking mechanism according to claim 6, characterized in that: Two groups of the plugging holes are provided on each of the pressing blocks (36), the plugging holes corresponding one-to-one to the pressing rods (34), the first through holes (311) and the second through holes, and the plugging holes on the pressing blocks (36) are arranged along the moving direction of the welding strip.

8. The locking mechanism according to claim 1, characterized in that: A fixing groove is provided on the side wall of the support frame (1), and the support frame (1) comprises two groups of fixing grooves which are arranged opposite to each other, and the two ends of the support plate (2) are inserted into the fixing grooves.

9. The locking mechanism according to claim 1, characterized in that: A fourth through hole is formed on the top of the support frame (1), a fifth through hole is formed on the base plate (31), a fixing pin (4) is inserted into the fifth through hole of the base plate (31), and both ends of the fixing pin (4) are inserted into the fourth through hole.

10. A welding ribbon group supply device, characterized in that: It comprises the locking mechanism as claimed in claim 1, and the welding tape group supply device comprises a transition plate (6), a holding mechanism (7) and a tape making platform (8), the welding tape passes through the transition plate (6), the locking mechanism, the holding mechanism (7) and the tape making platform (8) in sequence, the transition plate (6) can guide the welding tape, the holding mechanism (7) can position the welding tape, and the tape making platform (8) can cut the welding tape.

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