Soldering lug feeding control mechanism

Abstract

The utility model discloses a soldering lug feeding control mechanism. The soldering lug feeding control mechanism comprises a side plate, a driving mechanism, a transmission wheel set, a swing assembly, a stop sensor and an unwinding sensor, wherein the driving mechanism, the transmission wheel set, the swing assembly, the stop sensor and the unwinding sensor are arranged on the side wall of the side plate. The stop sensor and the unwinding sensor are electrically connected with the driving mechanism, a soldering lug reel is installed at the driving end of the driving mechanism, and the driving mechanism is used for driving the soldering lug reel to rotate; the swing assembly is located between the soldering lug reel and the conveying wheel set, a pressing wheel is installed at the swing end of the swing assembly, and soldering lugs of the soldering lug reel are sequentially wound around the pressing wheel and the conveying wheel set. According to the utility model, the side plate, the driving mechanism, the transmission wheel set, the swinging assembly, the stop sensor, the unwinding sensor and the elastic piece are matched for use, so that the pressing wheel is always propped against the soldering lug, the soldering lug is always in a tensioning state, the soldering lug reel is driven to rotate to unwind the soldering lug at a proper time, and the transportation of the soldering lug is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding equipment, in particular to a control mechanism for feeding solder tabs. Background Art

[0002] In some small power transformers, solder tabs are used to connect the lead-out wires of the primary winding and the secondary winding to achieve effective power transmission. In large power transformers, solder tabs may be used to fix the connection parts of the iron core and the winding to improve the overall mechanical strength and electrical performance.

[0003] Currently, in the manufacturing process of transformers, the feeding operation of solder tabs is generally carried out by unwinding the solder tabs through the cooperation of a reel and a clamping wheel group. However, the solder tabs are prone to wrinkling during the unwinding process, which affects the welding quality. Summary of the Utility Model

[0004] Aiming at the above defects, the purpose of the utility model is to provide a control mechanism for feeding solder tabs, which solves the problem that the existing solder tabs are prone to wrinkling during the unwinding process and affects the welding quality.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A control mechanism for feeding solder tabs includes side plates, a driving mechanism, a transmission wheel group, a swinging assembly, a stop sensor and a unwind sensor arranged on the side walls of the side plates;

[0007] The stop sensor and the unwind sensor are electrically connected to the driving mechanism, and a solder tab reel is installed at the driving end of the driving mechanism, and the driving mechanism is used to drive the solder tab reel to rotate;

[0008] The swinging assembly is located between the solder tab reel and the transmission wheel group. A pressing wheel is installed at the swinging end of the swinging assembly. The solder tabs of the solder tab reel are wound around the pressing wheel and the transmission wheel group in sequence. An elastic member is connected between the swinging end of the swinging assembly and the side plate;

[0009] When the stop sensor senses the swinging end of the swinging assembly, the elastic member is in a natural state, and the driving mechanism stops working;

[0010] When the unwind sensor senses the swinging end of the swinging assembly, the elastic member is in a stretched state, and the driving mechanism drives the solder tab reel to rotate to unwind the solder tabs until the elastic member returns to the natural state.

[0011] Preferably, the swing assembly includes a rotating shaft, one end of the rotating shaft is rotatably installed on the side plate, the other end of the rotating shaft is fixedly installed with a swing arm, the pressing wheel is rotatably installed at one end of the swing arm away from the rotating shaft, and both ends of the elastic member are respectively connected to one end of the swing arm away from the rotating shaft and the side wall of the side plate.

[0012] Preferably, a first positioning pin is installed on one side of the swing arm, a second positioning pin is installed on the side wall of the side plate, the elastic member is a tension spring, and both ends of the tension spring are respectively hooked to the first positioning pin and the second positioning pin.

[0013] Preferably, the stop sensor and the unwind sensor are photoelectric sensors.

[0014] Preferably, the driving mechanism includes an unwind shaft, a first limit disk and a pressing component;

[0015] The unwind shaft is rotatably installed on the side wall of the side plate, the solder tab reel is movably sleeved outside the unwind shaft, the first limit disk is fixedly sleeved outside the unwind shaft, the first limit disk is located on the side of the solder tab reel facing the side plate, the pressing component is fixedly installed on the unwind shaft, and both ends of the solder tab reel are respectively in close contact with the end face of the first limit disk and the pressing end of the pressing component;

[0016] One end of the unwind shaft penetrates through the side plate and extends to the outside to be connected with a servo motor, the servo motor is installed on the side wall of the side plate through a bracket, and the stop sensor and the unwind sensor are electrically connected to the servo motor.

[0017] Preferably, the pressing component includes a second limit disk and a fixing sleeve;

[0018] The second limit disk and the fixing sleeve are respectively movably sleeved outside the unwind shaft, the fixing sleeve is detachably installed outside the unwind shaft, and one end of the second limit disk away from the fixing sleeve presses against the solder tab reel;

[0019] A plurality of countersunk holes are annularly arranged around the axis of the fixing sleeve on the end face of the fixing sleeve, a countersunk bolt is movably inserted into each countersunk hole, the rod portion of each countersunk bolt is fixedly connected to the second limit disk, and a spring is sleeved outside the rod portion of each countersunk bolt, and both ends of each spring are respectively connected to the second limit disk and the countersunk hole.

[0020] Preferably, a threaded rod is screwed through the top end of the fixing sleeve, a positioning hole adapted to the threaded rod is formed in the side wall of the unwind shaft, and an adjusting rod is provided on the side wall of the top end of the threaded rod.

[0021] The technical solution provided by the present utility model may include the following beneficial effects:

[0022] By the combined use of the side plates, drive mechanism, transmission wheel set, swing assembly, stop sensor, unwind sensor, and elastic member, the pressure wheel can always press against the solder tab, thereby ensuring that the solder tab is always in a tensioned state, and driving the solder tab reel to rotate to unwind the solder tab at an appropriate time to ensure the conveyance of the solder tab. Description of the Drawings

[0023] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0024] Figure 2 is a schematic diagram of the structure of the swing assembly of the present utility model;

[0025] Figure 3 is a schematic diagram of the internal structure of an embodiment of the pressing assembly of the present utility model;

[0026] Figure 4 is a schematic diagram of the internal structure of another embodiment of the pressing assembly of the present utility model.

[0027] Wherein: 1, side plates; 11, second positioning pins; 2, drive mechanism; 21, unwind shaft; 22, first limit disk; 23, pressing assembly; 231, second limit disk; 232, fixed sleeve; 233, counterbore; 234, countersunk bolt; 235, spring; 236, threaded rod; 3, transmission wheel set; 4, swing assembly; 41, pressure wheel; 42, rotating shaft; 43, swing arm; 44, first positioning pin; 5, solder tab reel; 6, stop sensor; 7, unwind sensor; 8, elastic member. Detailed Description of the Embodiments

[0028] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described by referring to the drawings below are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, 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 therefore should not be construed as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features, which are used to distinguish and describe features, without order or importance.

[0030] 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 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 circumstances.

[0031] The following combines the drawings Figures 1 to 4 and further illustrates the technical solution of the present utility model through specific embodiments.

[0032] As Figures 1 - 4 shown, a solder tab feeding control mechanism includes side plates 1 and a driving mechanism 2, a transmission wheel set 3, a swinging assembly 4, a stop sensor 6, and a unwind sensor 7 provided on the side walls of the side plates 1;

[0033] The stop sensor 6 and the unwind sensor 7 are electrically connected to the driving mechanism 2, and a solder tab reel 5 is installed at the driving end of the driving mechanism 2. The driving mechanism 2 is used to drive the solder tab reel 5 to rotate;

[0034] The swinging assembly 4 is located between the solder tab reel 5 and the transmission wheel set 3. A pressure wheel 41 is installed at the swinging end of the swinging assembly 4. The solder tabs of the solder tab reel 5 are sequentially wound around the pressure wheel 41 and the transmission wheel set 3. An elastic member 8 is connected between the swinging end of the swinging assembly 4 and the side plates 1;

[0035] When the stop sensor 6 senses the swinging end of the swinging assembly 4, the elastic member 8 is in a natural state, and the driving mechanism 2 stops working;

[0036] When the unwinding inductor 7 senses the swinging end of the swinging assembly 4, the elastic member 8 is in a stretched state, and the driving mechanism 2 drives the solder strip reel 5 to rotate to unwind the solder strip until the elastic member 8 returns to its natural state.

[0037] With the cooperation of the side plate 1, the driving mechanism 2, the transmission wheel set 3, the swinging assembly 4, the stop inductor 6, the unwinding inductor 7 and the elastic member 8 provided in this solution, the pressing wheel 41 can always press against the solder strip, thus ensuring that the solder strip is always in a tensioned state, and driving the solder strip reel 5 to rotate to unwind the solder strip at an appropriate time to ensure the conveyance of the solder strip.

[0038] Specifically, when the stop inductor 6 senses the swinging end of the swinging assembly 4, the driving mechanism 2 stops working. Since the solder strip is wound around the pressing wheel 41 and the transmission wheel set 3, when the external conveying mechanism outputs the solder strip on the transmission wheel set 3 outward, the length of the solder strip between the pressing wheel 41 and the solder strip reel 5 gradually decreases, thereby driving the pressing wheel 41 to move, causing the swinging end of the swinging assembly 4 to move to the position of the unwinding inductor 7. At this time, the elastic member 8 is in a stretched state. When the unwinding inductor 7 senses the swinging end of the swinging assembly 4, the driving mechanism 2 operates and drives the solder strip reel 5 to rotate to unwind the solder strip, so that the length of the solder strip between the pressing wheel 41 and the solder strip reel 5 gradually increases, and the elastic member 8 gradually returns to its natural state, thereby pulling the swinging end of the swinging assembly 4 to move until the swinging end of the swinging assembly 4 moves to the position of the stop inductor 6.

[0039] As Figures 1 - 2 shown, the swinging assembly 4 includes a rotating shaft 42. One end of the rotating shaft 42 is rotatably installed on the side plate 1, and the other end of the rotating shaft 42 is fixedly installed with a swing arm 43. The pressing wheel 41 is rotatably installed at one end of the swing arm 43 away from the rotating shaft 42. Both ends of the elastic member 8 are respectively connected to one end of the swing arm 43 away from the rotating shaft 42 and the side wall of the side plate 1.

[0040] Specifically, the pressing wheel 41 drives the swing arm 43 to rotate, and the swing arm 43 drives the rotating shaft 42 to rotate on the side wall of the side plate 1.

[0041] As Figure 2 shown, a first positioning pin 44 is installed on one side of the swing arm 43, and a second positioning pin 11 is installed on the side wall of the side plate 1. The elastic member 8 is a tension spring, and both ends of the tension spring are respectively hooked to the first positioning pin 44 and the second positioning pin 11.

[0042] Specifically, by hooking both ends of the tension spring to the first positioning pin 44 and the second positioning pin 11 respectively, the installation of the elastic member 8 on the side plate 1 and the swing arm 43 can be facilitated.

[0043] As Figure 3As shown, the stop sensor 6 and the unwind sensor 7 are photoelectric sensors.

[0044] As Figure 1 shown, the drive mechanism 2 includes an unwind shaft 21, a first limit disc 22, and a pressing assembly 23;

[0045] The unwind shaft 21 is rotatably installed on the side wall of the side plate 1. The solder tab reel 5 is movably sleeved outside the unwind shaft 21. The first limit disc 22 is fixedly sleeved outside the unwind shaft 21. The first limit disc 22 is located on the side of the solder tab reel 5 facing the side plate 1. The pressing assembly 23 is fixedly installed on the unwind shaft 21. Both ends of the solder tab reel 5 are closely attached to the end face of the first limit disc 22 and the pressing end of the pressing assembly 23 respectively;

[0046] One end of the unwind shaft 21 penetrates through the side plate 1 and extends to the outside to be connected with a servo motor 24. The servo motor 24 is installed on the side wall of the side plate 1 through a bracket. The stop sensor 6 and the unwind sensor 7 are electrically connected to the servo motor 24.

[0047] Specifically, the servo motor 24 drives the unwind shaft 21 to rotate. The unwind shaft 21 drives the first limit disc 22 and the pressing assembly 23 to rotate, thereby driving the solder tab reel 5 to rotate.

[0048] As Figure 3 shown, the pressing assembly 23 includes a second limit disc 231 and a fixing sleeve 232;

[0049] The second limit disc 231 and the fixing sleeve 232 are respectively movably sleeved outside the unwind shaft 21. The fixing sleeve 232 is detachably installed outside the unwind shaft 21. One end of the second limit disc 231 away from the fixing sleeve 232 presses against the solder tab reel 5;

[0050] The end face of the fixing sleeve 232 is annularly provided with a plurality of countersunk holes 233 around the axis of the fixing sleeve 232. Each of the countersunk holes 233 is movably inserted with a countersunk bolt 234. The rod portion of each countersunk bolt 234 is fixedly connected to the second limit disc 231. A spring 235 is sleeved outside the rod portion of each countersunk bolt 234. Both ends of each spring 235 are connected to the second limit disc 231 and the countersunk hole 233 respectively.

[0051] Specifically, when installing the solder tab spool 5, first, the solder tab spool 5 is sleeved on the outside of the pay-off reel 21, and the solder tab spool 5 is made to be in close contact with the first limiting disc 22. Then, the second limiting disc 231 and the fixing sleeve 232 are sleeved on the outside of the pay-off reel 21. Under the action of the spring 235, the second limiting disc 231 is made to be in close contact with the end face of the solder tab spool 5. Then, the fixing sleeve 232 is fixed on the pay-off reel 21, so as to press the solder tab spool 5 against the first limiting disc 22.

[0052] It should be noted that, under the combined action of the countersunk head bolt 234 and the spring 235, solder tab spools 5 of different models can be pressed against the first limiting disc 22, improving the applicable range of the device.

[0053] As Figure 4 shown, a threaded rod 236 is threadedly penetrated through the top end of the fixing sleeve 232. A positioning hole adapted to the threaded rod 236 is formed in the side wall of the pay-off reel 21. An adjusting rod is provided on the side wall of the top end of the threaded rod 236.

[0054] Specifically, rotating the adjusting rod drives the threaded rod 236 to rotate, so that the bottom end of the threaded rod 236 is inserted into the positioning hole, thereby fixing the fixing sleeve 232 on the pay-off reel 21. Rotating the adjusting rod drives the threaded rod 236 to rotate, so that the bottom end of the threaded rod 236 is removed from the positioning hole, and then the fixing sleeve 232 can be removed from the pay-off reel 21 to replace the solder tab spools 5 of different models.

[0055] The technical principle of the present utility model has been described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present utility model and cannot be construed as limiting the protection scope of the present utility model in any way. Based on the explanations herein, those skilled in the art can readily conceive of other specific embodiments of the present utility model without creative efforts, and these embodiments will all fall within the protection scope of the present utility model.

Claims

1. A solder tab feeding control mechanism, characterized in that: It includes side plates (1), a driving mechanism (2), a transmission wheel set (3), a swinging assembly (4), a stop sensor (6), and an unwinding sensor (7) provided on the side wall of the side plate (1); The stop sensor (6) and the unwinding sensor (7) are electrically connected to the driving mechanism (2). A solder tab reel (5) is installed at the driving end of the driving mechanism (2), and the driving mechanism (2) is used to drive the solder tab reel (5) to rotate; The swinging assembly (4) is located between the solder tab reel (5) and the transmission wheel set (3). A pressure wheel (41) is installed at the swinging end of the swinging assembly (4). The solder tabs of the solder tab reel (5) are wound around the pressure wheel (41) and the transmission wheel set (3) in sequence. An elastic member (8) is connected between the swinging end of the swinging assembly (4) and the side plate (1); When the stop sensor (6) senses the swinging end of the swinging assembly (4), the elastic member (8) is in a natural state, and the driving mechanism (2) stops working; When the unwinding sensor (7) senses the swinging end of the swinging assembly (4), the elastic member (8) is in a stretched state, and the driving mechanism (2) drives the solder tab reel (5) to rotate to unwind the solder tabs until the elastic member (8) returns to the natural state.

2. The solder tab feeding control mechanism according to claim 1, wherein: The swinging assembly (4) includes a rotating shaft (42). One end of the rotating shaft (42) is rotatably installed on the side plate (1), and a swing arm (43) is fixedly installed at the other end of the rotating shaft (42). The pressure wheel (41) is rotatably installed at the end of the swing arm (43) away from the rotating shaft (42). Both ends of the elastic member (8) are respectively connected to the end of the swing arm (43) away from the rotating shaft (42) and the side wall of the side plate (1).

3. The solder tab feeding control mechanism according to claim 2, wherein: A first positioning pin (44) is installed on one side of the swing arm (43), and a second positioning pin (11) is installed on the side wall of the side plate (1). The elastic member (8) is a tension spring, and both ends of the tension spring are respectively hooked to the first positioning pin (44) and the second positioning pin (11).

4. A solder tab feeding control mechanism according to claim 1, wherein: The stop sensor (6) and the unwinding sensor (7) are photoelectric sensors.

5. A solder tab feeding control mechanism according to claim 1, characterized in that: The driving mechanism (2) includes a winding shaft (21), a first limiting disc (22), and a pressing assembly (23); The winding shaft (21) is rotatably installed on the side wall of the side plate (1). The solder tab reel (5) is movably sleeved on the outer side of the winding shaft (21). The first limiting disc (22) is fixedly sleeved on the outer side of the winding shaft (21). The first limiting disc (22) is located on the side of the solder tab reel (5) facing the side plate (1). The pressing assembly (23) is fixedly installed on the winding shaft (21). Both ends of the solder tab reel (5) are respectively in close contact with the end face of the first limiting disc (22) and the pressing end of the pressing assembly (23); One end of the unwinding reel (21) penetrates through the side plate (1) and extends to the outside and is connected with a servo motor (24). The servo motor (24) is installed on the side wall of the side plate (1) through a bracket. The stop inductor (6) and the unwinding inductor (7) are electrically connected with the servo motor (24).

6. The solder tab feeding control mechanism according to claim 5, wherein: The pressing assembly (23) includes a second limiting disc (231) and a fixing sleeve (232); The second limiting disc (231) and the fixing sleeve (232) are respectively movably sleeved on the outside of the unwinding reel (21). The fixing sleeve (232) is detachably installed on the outside of the unwinding reel (21). One end of the second limiting disc (231) away from the fixing sleeve (232) presses against the solder tab reel (5); A plurality of countersunk holes (233) are annularly arranged around the axis of the fixing sleeve (232) on the end face of the fixing sleeve (232). A countersunk bolt (234) is movably inserted into each of the countersunk holes (233). The rod part of each countersunk bolt (234) is fixedly connected with the second limiting disc (231). A spring (235) is sleeved on the outside of the rod part of each countersunk bolt (234). Two ends of each spring (235) are respectively connected with the second limiting disc (231) and the countersunk hole (233).

7. The solder tab feeding control mechanism according to claim 6, characterized in that: A threaded rod (236) is screwed through the top end of the fixing sleeve (232). A positioning hole adapted to the threaded rod (236) is formed in the side wall of the unwinding reel (21). An adjusting rod is arranged on the side wall of the top end of the threaded rod (236).

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