Automatic test braiding machine for fuses

Abstract

The invention discloses an automatic fuse testing and braiding machine which comprises a rack, and a feeding device, a chain conveying device, a resistance testing device and a braiding device which are mounted on the rack and are sequentially arranged according to working procedures, the resistance testing device comprises a testing wheel, two testing tracks, a testing pressing mechanism and a defective product discharging mechanism. The testing wheel is rotatably mounted on the rack and is provided with two separated testing discs; the two test tracks are installed on the rack and are adjacent to the two test discs respectively. The test tracks are provided with bearing outer cambered surfaces used for bearing pins of fuses. The two test tracks are provided with test electrodes connected with a resistance test instrument; the test pressing mechanism is installed on the rack and used for pressing two pins of the fuse so that the two pins of the fuse can abut against the test electrodes respectively. The defective product discharging mechanism is installed on the rack and used for discharging the fuses with unqualified resistance values. According to the invention, the fuse can be automatically tested, and the production efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the field of fuses, in particular to an automatic fuse testing tape machine. Background Art

[0002] Existing fuses need to be tested and taped after assembly, and the test mainly tests whether the resistance of the fuse is qualified. However, the current test of fuses is mainly done manually, and the test efficiency is low; the few test devices that automatically test fuses have complex structures.

[0003] In view of the existence of the above problems, it is necessary to study a fuse automatic test taping machine, which can automatically test the fuse. Summary of the invention

[0004] The object of the present invention is to provide a fuse automatic test taping machine, which can automatically test the fuse.

[0005] In order to achieve the above object, the solution of the present invention is: A fuse automatic test taping machine comprises a frame, and a feeding device, a chain conveying device and a taping device which are installed on the frame and arranged in sequence according to the process; the fuse automatic test taping machine also comprises a resistance testing device arranged between the chain conveying device and the taping device; the resistance testing device comprises a testing wheel, two testing tracks, a testing pressing mechanism and a defective product unloading mechanism; the testing wheel is rotatably installed on the frame, the testing wheel is provided with two separated testing discs, and the testing discs are provided with a plurality of testing slots for inserting the pins of the fuses at equal intervals along the circumferential direction; the two testing tracks Installed on a frame, two test tracks and two test discs are respectively arranged adjacent to each other, the test track is provided with a supporting outer arc surface for supporting the pins of the fuse, the supporting outer arc surface is concentrically arranged with the test disc and the radius of the supporting outer arc surface is smaller than the radius of the test disc; the two test tracks are both provided with test electrodes, and the test electrodes are connected to a resistance testing instrument; a test pressing mechanism is installed on the frame and is used to press the two pins of the fuse so that the two pins of the fuse respectively abut against the test electrodes of the two test tracks; a defective product unloading mechanism is installed on the frame and is used to unload fuses with unqualified resistance values.

[0006] The test pressing mechanism comprises two pressing arms rotatably mounted on a frame and a rotation driving device for driving the two pressing arms to rotate. The pressing arms are provided with pressing heads for pressing fuse pins.

[0007] The rotary drive device has a liftable pressing rod, which movably presses the two pressing arms to drive the pressing heads of the pressing arms to separate from the fuse pins; each pressing arm is equipped with a reset spring for driving the pressing arm to reset, and the reset spring is used to drive the pressing head of the pressing arm to press the fuse pins.

[0008] The resistance testing device also includes a testing driving motor, which is linked with the testing wheel and the rotating driving device.

[0009] The rotation drive device also has a swing arm and a linkage arm. The swing arm is rotatably installed on the frame. One end of the swing arm is fixedly connected to the pressing rod, and the other end of the swing arm is pivotally connected to one end of the linkage arm. The other end of the linkage arm cooperates with the test drive motor through a cam mechanism.

[0010] The resistance testing device further comprises a guide rail mounted on the frame and located between the two test plates, wherein the guide rail has a guide inner arc surface for contacting a fuse body of the fuse.

[0011] The two test discs of the test wheel are located between the two test tracks, the supporting outer arc surface of the test track is connected to the taping device, the radius of the supporting outer arc surface is larger than the distance from the bottom of the test slot to the center of the test disc, and a pressing notch is provided on the side of the test track close to the taping device; the defective product unloading mechanism includes a pressing seat and a pressing drive device for driving the pressing seat to move, the pressing seat is provided with two pressing feet for pressing the fuse pins, and the two pressing feet are respectively movably inserted into the pressing notches of the two test tracks.

[0012] The pressing notch of the test track forms a stopper and a pass opening on one side facing the test disc, and the pass opening is close to the braiding device; a support block is arranged in the pressing notch opposite to the pass opening.

[0013] An avoidance channel communicating with the pressing notch is provided on the inner side of the test track.

[0014] The end of the pressing foot is provided with a pressing through groove.

[0015] After adopting the above scheme, the working principle of the resistance testing device of the present invention is: The chain conveyor device delivers the fuse to the test wheel, so that the two pins of the fuse are respectively inserted into the test slots of the two test plates of the test wheel so that the fuse can be driven by the test wheel, and at the same time, the two pins of the fuse are respectively placed on the supporting outer arc surfaces of the two test tracks; As the test wheel rotates, the fuse is driven until the two pins of the fuse are respectively placed against the test electrodes of the two test tracks; at this time, the test wheel stops rotating, and the test pressing mechanism presses the two pins of the fuse so that the two pins of the fuse are respectively stably placed against the test electrodes of the two test tracks, ensuring that the two pins of the fuse are stably in contact with the two test electrodes; at this time, the resistance tester tests the resistance value of the fuse to determine whether the resistance value of the fuse is qualified; After the resistance tester completes the test on the fuse, the test pressing mechanism releases the pressure on the two pins of the fuse, and the test wheel continues to drive the fuse to move; when the fuse moves to the station where the defective product unloading mechanism is located, if the resistance value of the fuse is unqualified, the defective product unloading mechanism unloads the fuse with the unqualified resistance value; if the resistance value of the fuse is qualified, the defective product unloading mechanism does not unload the fuse with the qualified resistance value, and the fuse with the qualified resistance value subsequently enters the taping device for taping.

[0016] It can be seen from the above that the present invention can realize automatic testing of the resistance value of the fuse through the resistance testing device, which helps to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the present invention is schematically shown Figure 1 .

[0018] Figure 2 The structure of the present invention is schematically shown Figure 2 .

[0019] Figure 3 The structure of the present invention is schematically shown Figure 3 .

[0020] Figure 4 It is a schematic diagram of the local structure of the present invention Figure 1 .

[0021] Figure 5 It is a schematic diagram of the local structure of the present invention Figure 2 .

[0022] Figure 6 It is a schematic diagram of the local structure of the present invention Figure 3 .

[0023] Figure 7 It is a schematic diagram of the local structure of the present invention Figure 4 .

[0024] Figure 8 It is a schematic structural diagram of the tape braiding device of the present invention.

[0025] Fig. 9 The structure of the test wheel of the present invention is shown in FIG. Figure 1 .

[0026] Fig.10 The structure of the test wheel of the present invention is shown in FIG. Figure 2 .

[0027] Fig.11 The structure of the test track of the present invention is shown in FIG. Figure 1 .

[0028] Fig.12The structure of the test track of the present invention is shown in FIG. Figure 2 .

[0029] Fig.13 It is a structural schematic diagram of the defective product unloading mechanism of the present invention.

[0030] Fig.14 It is a schematic structural diagram of the guide track of the present invention.

[0031] Description of labels: Rack A, bracket A1, Feeding device B, Chain conveyor C, Taping device D, Resistance test device E, Test wheel 1, test plate 11, test slot 111, Test track 2, supporting outer arc surface 21, test electrode 22, test outer arc surface 221, pressing notch 23, stop bar 231, opening 232, support block 233, avoidance channel 24, Test pressing mechanism 3, pressing arm 31, pressing head 311, rotating driving device 32, pressing rod 321, swing arm 322, linkage arm 323, return spring 33, cam mechanism 34, Defective product unloading mechanism 4, pressing seat 41, pressing support foot 411, pressing through slot 4111, pressing driving device 42, Test drive motor 5, Transmission chain 6, The guide track 7 guides the inner arc surface 71 . DETAILED DESCRIPTION

[0032] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0033] like Figures 1 to 14 As shown, the present invention discloses a fuse automatic testing taping machine, comprising a frame A, and a feeding device B, a chain conveying device C and a taping device D installed on the frame A and arranged in sequence according to the process; wherein the feeding device B is used to convey the fuses one by one to the chain conveying device C, the chain conveying device C is used to transport the fuses, and the taping device D is used to tap the fuses; the specific structures of the feeding device B, the chain conveying device C and the taping device D are prior art and will not be repeated here.

[0034] The key point of the present invention is that the automatic test tape braiding machine for fuses of the present invention also includes a resistance test device E arranged between the chain conveying device C and the tape braiding device D; the resistance test device E includes a test wheel 1, two test tracks 2, a test pressing mechanism 3 and a defective product unloading mechanism 4; the test wheel 1 is rotatably mounted on the frame A, the test wheel 1 is provided with two separated test discs 11, and the test disc 11 is provided with a plurality of test slots 111 for inserting the pins of the fuse at equal intervals along the circumferential direction; the two test tracks 2 are mounted on the frame A, the two test tracks 2 are respectively arranged adjacent to the two test discs 11, and the test tracks 2 are provided with a supporting outer arc surface 21 The supporting outer arc surface 21 is used to support the pins of the fuse. The supporting outer arc surface 21 is concentrically arranged with the test disk 11 and the radius of the supporting outer arc surface 21 is smaller than the radius of the test disk 11; the two test tracks 2 are both provided with test electrodes 22, and the test electrodes 22 can form a test outer arc surface 221 connected to the supporting outer arc surface 21, and the test electrodes 22 are connected to the resistance testing instrument; the test pressing mechanism 3 is installed on the frame A and is used to press the two pins of the fuse so that the two pins of the fuse are respectively against the test electrodes 22 of the two test tracks 2; the defective product unloading mechanism 4 is installed on the frame A and is used to unload the fuse with unqualified resistance value.

[0035] The working principle of the resistance testing device E of the present invention is: The chain conveyor C delivers the fuse to the test wheel 1, so that the two pins of the fuse are respectively inserted into the test slots 111 of the two test plates 11 of the test wheel 1 so that the fuse can be driven by the test wheel 1, and at the same time, the two pins of the fuse are respectively placed on the supporting outer arc surfaces 21 of the two test tracks 2; As the test wheel 1 rotates, the fuse is driven until the two pins of the fuse are respectively placed on the test outer arc surfaces 221 of the test electrodes 22 of the two test tracks 2; at this time, the test wheel 1 stops rotating, and the test pressing mechanism 3 presses the two pins of the fuse so that the two pins of the fuse are respectively stably against the test electrodes 22 of the two test tracks 2, ensuring that the two pins of the fuse are stably in contact with the two test electrodes 22; at this time, the resistance tester tests the resistance value of the fuse to determine whether the resistance value of the fuse is qualified; After the resistance tester completes the test on the fuse, the test pressing mechanism 3 releases the pressure on the two pins of the fuse, and the test wheel 1 continues to drive the fuse to move; when the fuse moves to the station where the defective product unloading mechanism 4 is located, if the resistance value of the fuse is unqualified, the defective product unloading mechanism 4 unloads the fuse; if the resistance value of the fuse is qualified, the defective product unloading mechanism 4 does not unload the fuse, and the fuse subsequently enters the taping device D for taping.

[0036] It can be seen from the above that the present invention can realize automatic testing of the resistance value of the fuse through the resistance testing device E, which helps to improve production efficiency.

[0037] In an embodiment of the present invention, the test pressing mechanism 3 includes two pressing arms 31 rotatably mounted on the frame A, and a rotating driving device 32 driving the two pressing arms 31 to rotate, and the pressing arm 31 is provided with a pressing head 311 for pressing the fuse pin. The rotating driving device 32 has a lifting and lowering pressing rod 321, and the pressing rod 321 movably presses the two pressing arms 31 to drive the pressing head 311 of the pressing arm 31 to disengage from the fuse pin, and each pressing arm 31 is equipped with a reset spring 33 driving the pressing arm 31 to reset, and the reset spring 33 is used to drive the pressing head 311 of the pressing arm 31 to press the fuse pin; the present invention utilizes the elasticity of the reset spring 33 to prevent the pressing head 311 from applying too much pressure on the fuse pin and causing the fuse pin to deform; one end of the reset spring 33 is connected to the pressing arm 31, and the other end of the reset spring 33 is connected to the bracket A1 of the frame A, and the pressing arm 31 is rotatably connected to the bracket A1.

[0038] In an embodiment of the present invention, the resistance testing device E also includes a test drive motor 5, which is linked with the test wheel 1 and the rotation drive device 32, so that the rotation of the test wheel 1 is synchronized with the pressing of the pressing arm 31 by the rotation drive device 32, thereby ensuring the synchronization of the movement of the test wheel 1 and the movement of the test pressing mechanism 3, and further ensuring that when the fuse is driven to the point where the two pins of the fuse are respectively resting on the test outer arc surface 221 of the test electrode 22 of the two test tracks 2, the test wheel 1 stops rotating, and at the same time the test pressing mechanism 3 presses the two pins of the fuse. Among them, the rotation driving device 32 also has a swing arm 322 and a linkage arm 323. The swing arm 322 can be rotatably installed on the bracket A1 of the frame A. One end of the swing arm 322 is fixedly connected to the pressing rod 321, and the other end of the swing is pivotally connected to one end of the linkage arm 323. The other end of the linkage arm 323 cooperates with the test driving motor 5 through the cam mechanism 34. The test driving motor 5 drives the swing arm 322 to swing back and forth through the cam mechanism 34 and the linkage arm 323, thereby driving the pressing rod 321 to rise and fall; and the test wheel 1 can be transmitted and cooperated with the test driving motor 5 through the transmission chain 6.

[0039] In an embodiment of the present invention, the two test discs 11 of the test wheel 1 are located between the two test tracks 2, the supporting outer arc surface 21 of the test track 2 is connected to the braiding device D, the radius of the supporting outer arc surface 21 is greater than the distance from the bottom of the test slot 111 to the center of the test disc 11, and a pressing notch 23 is provided on the side of the test track 2 close to the braiding device D, and the pressing notch 23 is opened toward the side of the test disc 11; and the defective product unloading mechanism 4 includes a pressing seat 41 and a pressing drive device 42 for driving the pressing seat 41 to move, the pressing drive device 42 can adopt a telescopic cylinder, the pressing drive device 42 is connected to the bracket A1 of the frame A, and the pressing seat 41 is provided with two pressing feet 411 for pressing the fuse pins, and the two pressing feet 411 are respectively movably inserted into the pressing notches 23 of the two test tracks 2. When the fuse moves to the pressing notch 23 of the two test tracks 2, the test wheel 1 stops rotating. If the resistance value of the fuse is qualified, the defective product unloading mechanism 4 does not operate, and the subsequent test wheel 1 continues to rotate, so that the fuse passes through the pressing notch 23, and the fuse is transferred from the supporting outer arc surface 21 to the taping device D for taping; if the resistance value of the fuse is unqualified, the pressing drive device 42 of the defective product unloading mechanism 4 drives the two pressing legs 411 of the pressing seat 41 to be movably inserted into the pressing notches 23 of the two test tracks 2 respectively, so that the two pressing legs 411 of the pressing seat 41 press the two pins of the fuse to bend the two pins of the fuse, and then the two pins of the fuse are respectively separated from the supporting outer arc surfaces 21 of the two test tracks 2, and the subsequent test wheel 1 continues to rotate, so that the fuse falls from the test wheel 1 for unloading.

[0040] In the embodiment of the present invention, the pressing notch 23 of the test track 2 forms a stopper 231 and a pass 232 on one side facing the test disc 11, and the pass 232 is close to the braiding device D; when the pressing driving device 42 of the defective product unloading mechanism 4 drives the two pressing legs 411 of the pressing seat 41 to be respectively inserted into the pressing notches 23 of the two test tracks 2, the stopper 231 cooperates with the pressing legs 411 to bend the pins of the fuse with unqualified resistance value, and then the test wheel 1 rotates to make the two pins of the fuse detach from the supporting outer arc surface 21 of the two test tracks 2 from the two pass 232. In addition, a support block 233 can be provided in the pressing notch 23 opposite to the pass 232, and the support block 233 is used to support the pins of the fuse with qualified resistance value to prevent the pins of the fuse with qualified resistance value from detaching from the supporting outer arc surface 21 from the pass 232. In addition, an escape channel 24 communicating with the pressing notch 23 is provided on the inner side of the test track 2 to provide a movable space for the fuse with bent pins, so that the fuse can move with the test wheel 1 and eventually fall off the test wheel 1 .

[0041] In the embodiment of the present invention, the end of the pressing leg 411 of the pressing seat 41 is provided with a pressing slot 4111, and the pressing slot 4111 is used to sleeve the pin of the fuse to ensure the pressing effect of the pressing leg 411 on the fuse. The diameter of the pressing slot 4111 is gradually reduced.

[0042] In an embodiment of the present invention, the resistance testing device E also includes a guide rail 7 installed on the frame A and located between the two test disks 11. The guide rail 7 can be connected to the bracket A1 of the frame A. The guide rail 7 has a guide inner arc surface 71 for contacting the fuse body of the fuse. The guide inner arc surface 71 of the guide rail 7 limits the fuse so that the two pins of the fuse are stably placed on the supporting outer arc surfaces 21 of the two test rails 2.

[0043] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A fuse automatic test taping machine, comprising a frame, and a feeding device, a chain conveying device and a taping device installed on the frame and arranged in sequence according to the process, characterized in that: It also includes a resistance testing device disposed between the chain conveying device and the tape braiding device; The resistance testing device comprises a testing wheel, two testing tracks, a testing pressing mechanism and a defective product unloading mechanism; The test wheel is rotatably mounted on the frame, and the test wheel is provided with two separated test plates, and the test plates are provided with a plurality of test slots for inserting the pins of the fuse at equal intervals along the circumference; Two test tracks are installed on the frame, and the two test tracks are respectively arranged adjacent to the two test plates. The test tracks are provided with a supporting outer arc surface for supporting the pins of the fuse, and the supporting outer arc surface is arranged concentrically with the test plate, and the radius of the supporting outer arc surface is smaller than the radius of the test plate; both test tracks are provided with test electrodes, and the test electrodes are connected to the resistance test instrument; The test pressing mechanism is installed on the frame and is used to press the two pins of the fuse so that the two pins of the fuse are respectively against the test electrodes of the two test tracks; The defective product unloading mechanism is installed on the frame and is used to unload the fuses with unqualified resistance values.

2. The automatic fuse testing and taping machine according to claim 1, characterized in that: The test pressing mechanism comprises two pressing arms rotatably mounted on a frame and a rotation driving device for driving the two pressing arms to rotate. The pressing arms are provided with pressing heads for pressing fuse pins.

3. The automatic fuse testing and taping machine according to claim 2, characterized in that: The rotary drive device has a liftable pressing rod, which movably presses the two pressing arms to drive the pressing heads of the pressing arms to separate from the fuse pins; each pressing arm is equipped with a reset spring for driving the pressing arm to reset, and the reset spring is used to drive the pressing head of the pressing arm to press the fuse pins.

4. The automatic fuse testing and taping machine according to claim 3, characterized in that: The resistance testing device also includes a testing driving motor, which is linked with the testing wheel and the rotating driving device.

5. The automatic fuse testing and taping machine according to claim 4, characterized in that: The rotation drive device also has a swing arm and a linkage arm. The swing arm is rotatably installed on the frame. One end of the swing arm is fixedly connected to the pressing rod, and the other end of the swing arm is pivotally connected to one end of the linkage arm. The other end of the linkage arm cooperates with the test drive motor through a cam mechanism.

6. The automatic fuse testing and taping machine according to claim 1, characterized in that: The resistance testing device further comprises a guide rail mounted on the frame and located between the two test plates, wherein the guide rail has a guide inner arc surface for contacting a fuse body of the fuse.

7. The automatic fuse testing and taping machine according to claim 1, characterized in that: The two test discs of the test wheel are located between the two test tracks, the supporting outer arc surface of the test track is connected with the braiding device, the radius of the supporting outer arc surface is greater than the distance from the bottom of the test slot to the center of the test disc, and a pressing notch is provided on the side of the test track close to the braiding device; The defective product unloading mechanism includes a pressing seat and a pressing driving device for driving the pressing seat to move. The pressing seat is provided with two pressing legs for pressing the fuse pins. The two pressing legs are movably inserted into the pressing notches of the two test tracks respectively.

8. The automatic fuse testing and taping machine according to claim 7, characterized in that: The pressing notch of the test track forms a stopper and a pass opening on one side facing the test disc, and the pass opening is close to the braiding device; a support block is arranged in the pressing notch opposite to the pass opening.

9. The automatic fuse testing and taping machine according to claim 7 or 8, characterized in that: An avoidance channel communicating with the pressing notch is provided on the inner side of the test track.

10. The automatic fuse testing and taping machine according to claim 7, characterized in that: The end of the pressing foot is provided with a pressing through groove.

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