Anti-blocking and pulling device of automatic wire welding machine

Abstract

The utility model provides an anti-material-clamping and material-pulling device of an automatic wire welding machine. The anti-material-clamping and material-pulling device comprises a machine base, a clamping jaw mechanism installed on the machine base and an induction mechanism. A front rail and a rear rail are installed on the top of the machine base, and a material pulling channel is formed between the front rail and the rear rail. The induction mechanism comprises an induction wheel and an inductor; a mounting seat is mounted on the rear track, and the sensor is mounted on the mounting seat and is in communication connection with the control system. The induction wheel is installed on the installation base, located above the material pulling channel and mechanically connected with the inductor. A connecting protruding block is arranged on the mounting base in a protruding mode, connected with an adjusting assembly and capable of rotating relative to the adjusting assembly. The anti-blocking material pulling device of the automatic wire welding machine can effectively prevent material sheets from being blocked, reduces the rejection rate of the material sheets, and reduces the production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of wire welding machines, in particular to an anti-stuck material pulling device of an automatic wire welding machine. Background Art

[0002] The existing wire bonding machine material pulling module generally adjusts the width of the track, uses the clamp to clamp the material sheet and transports it forward. When it reaches the material box, the clamp is repeatedly released, retreated, clamped, and transported forward to send the material sheet into the material box.

[0003] However, the above-mentioned material pulling module has the problem that the track and the inner partition of the material box are two independent structures and are not in the same horizontal plane, so that the inner partition of the material box cannot be parallel to the track at the same horizontal plane, which makes it easy for the material sheet to get stuck; when the material sheet gets stuck, the clamp will clamp the material sheet and continue to transport it forward, which will cause the material sheet to be scrapped. Utility Model Content

[0004] The utility model provides an anti-jamming material pulling device for an automatic wire welding machine, which can effectively prevent material sheets from being jammed, reduce the scrap rate of material sheets and reduce production costs.

[0005] The technical solution adopted by the utility model is: an anti-stuck material pulling device of an automatic wire welding machine, which comprises: a machine base, a clamping mechanism and a sensing mechanism installed on the machine base; a front track and a rear track are installed on the top of the machine base, the front track and the rear track are arranged in parallel, and a pulling channel is formed between the front track and the rear track;

[0006] The sensing mechanism includes a sensing wheel and a sensor; the rear track is installed with a mounting seat, the sensor is installed on a side of the mounting seat away from the material pulling channel, and the sensor is communicatively connected with a control system; the sensing wheel is installed on a side of the mounting seat close to the material pulling channel, the sensing wheel is located above the material pulling channel, and the sensing wheel is mechanically connected with the sensor;

[0007] The mounting seat is convexly provided with a connecting protrusion, the connecting protrusion is connected to an adjusting component, and the connecting protrusion can rotate relative to the adjusting component; the position of the mounting seat can be adjusted by the adjusting component, thereby adjusting the position of the induction wheel.

[0008] Furthermore, the adjustment assembly includes an adjustment seat, a compression spring and a rotating shaft; the adjustment seat is installed on the rear track and arranged close to the mounting seat, and the adjustment seat is provided with a connecting groove, and the connecting protrusion extends into the connecting groove; the rotating shaft is rotatably installed in the connecting groove and passes through the connecting protrusion; the compression spring is installed in the connecting groove, and the compression spring is located below the rotating shaft; when the connecting protrusion rotates, it presses against the compression spring.

[0009] Furthermore, the size of the connecting protrusion is smaller than the size of the connecting groove, so that a rotation space is formed between the connecting groove and the connecting protrusion.

[0010] Furthermore, the rear track is provided with a follower bearing, the follower bearing is located below the induction wheel, and the sheet passes between the follower bearing and the induction wheel.

[0011] Furthermore, the induction wheel sleeve is provided with a rubber sleeve, and the contact surface of the rubber sleeve is provided with an anti-slip pattern.

[0012] Furthermore, the rear track is provided with an upper adjustment block, and the upper adjustment block is arranged close to the induction wheel.

[0013] Furthermore, the clamping mechanism and the front rail are arranged on the same side of the machine base, and the clamping mechanism includes a driving motor, a chain, a sliding seat and a clamping jaw; the driving motor is communicatively connected to the control system, and the driving motor is connected to the chain, and the chain is connected to the sliding seat; a slide rail is provided on the machine base, the sliding seat is slidably installed on the slide rail, the clamping jaw is installed on the sliding seat, and the clamping jaw at least partially extends above the material pulling channel.

[0014] Furthermore, a mounting plate is installed at a position below the chain on the machine base, and a plurality of position sensors are installed on the mounting plate at intervals. Each of the position sensors is communicatively connected to the control system to detect the position of the clamp and then transmit the signal to the control system.

[0015] Furthermore, the machine base is provided with at least one pressing plate mechanism, which includes a lifting seat, a power assembly, and a lower pressing plate. The power assembly is installed on the machine base, the lifting seat is mechanically connected to the power assembly, the lower pressing plate is installed on the lifting seat, and the lower pressing plate at least partially extends above the material pulling channel.

[0016] Furthermore, the clamping mechanism and the sensing mechanism are installed on the same side of the base.

[0017] Compared with the prior art, the anti-stuck material pulling device of the automatic wire welding machine of the utility model is equipped with a clamping mechanism and a sensing mechanism to cooperate in conveying the material sheet, and the control system collects and compares the signal of the clamping mechanism and the signal of the sensing mechanism. When the clamping mechanism and the sensing mechanism are running at the same time, if the comparison value is greater than the set threshold of the control system, the control system automatically determines that a jam is about to occur and alarms and prompts, and the device stops running, thereby effectively preventing the material from getting stuck, avoiding damage to the material, reducing the scrap rate of the material, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the utility model and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the utility model, but should not constitute a limitation of the utility model.

[0019] Figure 1 : A three-dimensional diagram of the anti-stuck material pulling device of the automatic wire welding machine of the utility model;

[0020] Figure 2 : Another three-dimensional view of the anti-stuck material pulling device of the automatic wire welding machine of the utility model;

[0021] Figure 3 : A three-dimensional exploded view of the sensing mechanism of the utility model;

[0022] Figure 4 : A three-dimensional diagram of the sensing mechanism of the utility model installed on the rear track;

[0023] Figure 5 : A partial top view of the sensing mechanism of the utility model installed on the rear track;

[0024] Figure 6 : A three-dimensional diagram of another embodiment of the anti-stuck material pulling device of the automatic wire welding machine of the utility model. DETAILED DESCRIPTION

[0025] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0026] like Figure 1 and Figure 2 As shown, the material-jamming-proof material-pulling device of the automatic wire bonding machine of the utility model comprises a machine base 1, a clamping mechanism and a sensing mechanism installed on the machine base 1; the clamping mechanism and the sensing mechanism are both communicatively connected with a control system.

[0027] Specifically, the clamp mechanism is installed on one side of the base 1, and the sensing mechanism is installed on the other side of the base 1. A front track 2 and a rear track 3 are installed on the top of the base 1; wherein the front track 2 and the rear track 3 are arranged in parallel, the clamp mechanism and the front track 2 are located on the same side of the base 1, and the sensing mechanism is arranged on the rear track 3. A material pulling channel 4 is formed between the front track 2 and the rear track 3 to accommodate the passage of the material sheet 100, and a welding wire working area 401 is arranged on the material pulling channel 4.

[0028] The clamp mechanism includes a drive motor, a chain 5, a sliding seat 6 and a clamp 7; the drive motor is connected to the control system in communication, and the drive motor is connected to the chain 5, and the chain 5 is connected to the sliding seat 6. The machine base 1 is provided with a slide rail 8, and the sliding seat 6 is slidably mounted on the slide rail 8; the clamp 7 is mounted on the sliding seat 6, and the clamp 7 at least partially extends above the material pulling channel 4 to clamp the material sheet 100 for transportation. The control system controls the drive motor to drive the chain 5 to rotate, drive the sliding seat 6 to slide along the slide rail 8, and drive the clamp 7 to clamp the material sheet 100 and transport it along the material pulling channel 4.

[0029] In addition, a mounting plate 9 is installed at a position below the chain 5 on the machine base 1, and a plurality of position sensors 10 are installed at intervals on the mounting plate 9. Each position sensor 10 is communicatively connected to the control system to detect the position of the clamping jaw 7 and then transmit the signal to the control system; when the clamping jaw 7 passes the first position sensor 10, one end of the sheet 100 just passes the induction wheel 11.

[0030] like Figures 3 to 5 As shown, the sensing mechanism includes a sensing wheel 11 and a sensor 12; wherein a mounting seat 13 is mounted on the rear track 3, the sensor 12 is mounted on the side of the mounting seat 13 away from the material pulling channel 4, and the sensor 12 is connected to the control system in communication. The sensing wheel 11 is mounted on the side of the mounting seat 13 close to the material pulling channel 4, the sensing wheel 11 is located above the material pulling channel 4, and the sensing wheel 11 is mechanically connected to the sensor 12. Specifically, the sensor 12 is connected to a connecting shaft 15 through a coupling 14, the connecting shaft 15 is passed through the mounting seat 13, and one end of the connecting shaft 15 passing through the mounting seat 13 is connected to the sensing wheel 11.

[0031] A follower bearing 18 is installed on the rear track 3 through an eccentric shaft 16 and a retaining spring 17. The follower bearing 18 is located below the induction wheel 11. The sheet 100 passes between the follower bearing 18 and the induction wheel 11, effectively ensuring smooth material transfer of the sheet 100.

[0032] Preferably, in order to increase the friction between the material sheet 100 and the induction wheel 11, play an anti-skid role, and ensure smooth material transfer, a rubber sleeve (such as a rubber sleeve, a TPU rubber sleeve, a plastic sleeve, etc.) can be put on the induction wheel 11, and an anti-skid pattern can be set on the contact surface of the rubber sleeve to further increase the friction.

[0033] In addition, an upper adjustment block 19 is provided on the rear track 3. The upper adjustment block 19 is arranged close to the induction wheel 11 to play a guiding role, so that the material sheet 100 passes through the induction wheel 11 and the follower bearing 18 and is guided by the upper adjustment block 19 to smoothly enter the material box.

[0034] When the sheet 100 passes between the induction wheel 11 and the follower bearing 18, the induction wheel 11 rotates due to the friction force, driving the connecting shaft 15 to rotate. The connecting shaft 15 transmits the information of the rotation of the induction wheel 11 to the sensor 12. The sensor 12 counts the number of rotations of the induction wheel 11 and then transmits the signal to the control system. The control system determines whether the signal is consistent with the position signal of the clamp 7. If they are consistent, there is no material jam and the machine runs normally. If there is a deviation between the two signals, it is determined that a material jam has occurred and the machine stops running. This effectively avoids the phenomenon of material jamming and reduces the scrap rate of the sheet 100.

[0035] Furthermore, the mounting seat 13 is provided with a connecting protrusion 130, and the connecting protrusion 130 is connected to an adjusting component; the position of the mounting seat 13 can be adjusted by the adjusting component, thereby adjusting the position of the sensing wheel 11, so that the sensing mechanism is suitable for use with sheets 100 of different thicknesses.

[0036] The adjustment assembly includes an adjustment seat 20, a compression spring 21 and a rotating shaft 22; the adjustment seat 20 is installed on the rear track 3 and is arranged close to the mounting seat 13, and the adjustment seat 20 is provided with a connecting groove 201, and the connecting protrusion 130 extends into the connecting groove 201. The rotating shaft 22 is rotatably installed in the connecting groove 201 and penetrates the connecting protrusion 130, and both ends of the rotating shaft 22 are connected to the groove wall of the connecting groove 201 through bearings 23, so that the rotating shaft 22 can drive the mounting seat 13 to rotate relative to the adjustment seat 20. The compression spring 21 is installed in the connecting groove 201, and the compression spring 21 is located below the rotating shaft 22. When the connecting protrusion 130 rotates, it presses the compression spring 21 to buffer the gravity of the induction wheel 11.

[0037] In addition, the size of the connecting protrusion 130 is smaller than the size of the connecting groove 201 , so that a rotation space 202 is formed between the connecting groove 201 and the connecting protrusion 130 , ensuring that the connecting protrusion 130 can rotate smoothly in the connecting groove 201 .

[0038] When the thickness of the sheet 100 conveyed by the clamp 7 is different, it passes through the induction wheel 11. Due to the action of force, the induction wheel 11 is lifted, and the connecting protrusion 130 drives the rotating shaft 22 to rotate. At this time, the connecting protrusion 130 presses the compression spring 21, so that the mounting seat 13 swings slightly relative to the adjustment seat 20, so that the sensing device can adapt to the use of sheets 100 of different thicknesses; in this process, the strength of the compression spring 21 can be adjusted to adapt to sheets 100 of different hardness.

[0039] In one embodiment, the clamping mechanism and the rear track 3 may be disposed on the same side of the base 1 , and the sensing mechanism may be installed on the front track 2 , but the present invention is not limited thereto.

[0040] like Figure 1 and Figure 2As shown, in addition, at least one pressing plate mechanism is provided on the machine base 1 to press on the top of the material pulling channel 4, so that only a gap for the material sheet 100 to pass through is left between the pressing plate mechanism and the material pulling channel 4, which is conducive to the transportation of the material sheet 100. The pressing plate mechanism includes a lifting seat 23, a power assembly, and a lower pressing plate 24. The power assembly is installed on the machine base 1, the lifting seat 23 is mechanically connected to the power assembly, and the lower pressing plate 24 is installed on the lifting seat 23, and the lower pressing plate at least partially extends above the material pulling channel 4.

[0041] In this embodiment, the power assembly can be a motor or a cylinder, but is not limited thereto. The power assembly drives the sliding seat 6 to slide up and down, thereby driving the lower pressing plate 24 to rise or fall. When the lower pressing plate 24 falls, only a gap for the material sheet 100 to pass through is left between the lower pressing plate 24 and the material pulling channel 4, which is conducive to the transportation of the material sheet 100.

[0042] The working process of the anti-stuck material pulling device of the automatic wire welding machine of the utility model is as follows:

[0043] The relationship between the sensor 12 signal (signal Y) of the induction wheel 11 and the multiple position sensor 10 signals (signal X) of the induction clamp 7 position is calibrated by the control system; wherein, when the clamp 7 releases the sheet 100 and returns to the clamping position, the system is reset;

[0044] The clamp 7 clamps the sheet 100 and starts to convey the sheet 100 toward the material box. The control system uses an average sliding window and filtering to collect and compare (Y / X) the position values ​​of the clamp 7 and the resolution corresponding to the sensor 12. When the clamp 7 passes the first position sensor 10, one end of the sheet 100 just passes the induction wheel 11. In this step, a collection window is set for position collection, and each time period corresponds to an average calculation of a window to exclude the signal jump part.

[0045] The control system sets a moving distance threshold. When the contrast value (Y / X) is less than the set threshold, the material 100 is in a normal conveying state. When the contrast value is greater than the set threshold (Y / X), the induction wheel 11 rotates, and a material jam is about to occur (the sensor 12 signal Y is greater than the position sensor 10 signal X of the clamp 7), the control system alarms and prompts, and the device stops running.

[0046] like Figure 6 As shown, in this embodiment, the machine base 1 is provided with a plurality of clamping mechanisms installed at intervals on one side of the front track 2, and a plurality of sensing mechanisms are installed at intervals on the rear track 3, and each sensing mechanism corresponds to each clamping mechanism to ensure the unobstructed operation of the pulling device, but the present invention is not limited thereto.

[0047] In another embodiment, the clamping mechanism and the sensing mechanism may also be installed on the same side of the base 1 at the same time, and there is a large distance between the clamping mechanism and the sensing mechanism, but this is not limited thereto.

[0048] Among them, the installation positions of the clamping mechanism and the sensing mechanism are set according to the clamping distance that needs to be controlled, but are not limited to this.

[0049] In summary, the anti-stuck material pulling device of the automatic wire welding machine of the utility model has the following advantages:

[0050] 1. A clamping mechanism is arranged on the front track 2, and a sensing mechanism is arranged on the rear track 3, and both the clamping mechanism and the sensing mechanism are connected to the control system for communication. The control system collects and compares the signals of the clamping mechanism and the sensing mechanism. When the clamping mechanism and the sensing mechanism are running at the same time, if the comparison value is greater than the set threshold value of the control system, the control system automatically determines that a material jam is about to occur, and alarms and prompts, and the device stops running, thereby effectively preventing the material sheet 100 from being jammed, avoiding damage to the material sheet 100, reducing the scrap rate of the material sheet 100, and reducing production costs.

[0051] 2. By setting an adjustment component in the sensing mechanism, when the thickness of the sheet 100 conveyed by the clamp 7 is relatively large, it passes through the sensing wheel 11. Due to the action of force, the sensing wheel 11 is lifted up, and the connecting protrusion 130 drives the rotating shaft 22 to rotate. At this time, the rotating shaft 22 presses the compression spring 21, and the mounting seat 13 swings slightly relative to the adjusting seat 20, and the sensing wheel 11 is driven to lift up, so that the sensing device can adapt to the use of sheets 100 of different thicknesses.

[0052] As long as it does not violate the creative idea of ​​the utility model, any combination of various different embodiments of the utility model should be regarded as the content disclosed by the utility model; within the technical concept of the utility model, any simple modification of the technical solution and any combination of different embodiments that do not violate the creative idea of ​​the utility model should be within the protection scope of the utility model.

Claims

1. A material pulling device for preventing material jamming of an automatic wire bonding machine, characterized in that: include: A machine base, a clamping mechanism and a sensing mechanism installed on the machine base; a front track and a rear track are installed on the top of the machine base, the front track and the rear track are arranged in parallel, and a material pulling channel is formed between the front track and the rear track; The sensing mechanism includes a sensing wheel and a sensor; the rear track is installed with a mounting seat, the sensor is installed on a side of the mounting seat away from the material pulling channel, and the sensor is communicatively connected with a control system; the sensing wheel is installed on a side of the mounting seat close to the material pulling channel, the sensing wheel is located above the material pulling channel, and the sensing wheel is mechanically connected with the sensor; The mounting seat is convexly provided with a connecting protrusion, the connecting protrusion is connected to an adjusting component, and the connecting protrusion can rotate relative to the adjusting component; the position of the mounting seat can be adjusted by the adjusting component, thereby adjusting the position of the induction wheel.

2. The anti-stuck material pulling device of the automatic wire bonding machine according to claim 1, characterized in that: The adjustment assembly includes an adjustment seat, a compression spring and a rotating shaft; the adjustment seat is installed on the rear track and is arranged close to the mounting seat, and the adjustment seat is provided with a connecting groove, and the connecting protrusion extends into the connecting groove; the rotating shaft is rotatably installed in the connecting groove and passes through the connecting protrusion; the compression spring is installed in the connecting groove, and the compression spring is located below the rotating shaft; when the connecting protrusion rotates, it presses against the compression spring.

3. The anti-stuck material pulling device of the automatic wire bonding machine according to claim 2, characterized in that: The size of the connecting protrusion is smaller than the size of the connecting groove, so that a rotation space is formed between the connecting groove and the connecting protrusion.

4. The anti-stuck material pulling device of the automatic wire bonding machine according to claim 1, characterized in that: The rear track is provided with a follower bearing, the follower bearing is located below the induction wheel, and the sheet passes between the follower bearing and the induction wheel.

5. The anti-stuck material pulling device of the automatic wire bonding machine according to claim 1, characterized in that: The induction wheel sleeve is provided with a rubber sleeve, and the contact surface of the rubber sleeve is provided with an anti-slip pattern.

6. The material pulling device for preventing material jamming of the automatic wire bonding machine according to claim 1, characterized in that: The rear track is provided with an upper adjustment block, and the upper adjustment block is arranged close to the induction wheel.

7. The material pulling device for preventing material jamming of an automatic wire bonding machine according to claim 1, characterized in that: The clamping mechanism and the front rail are arranged on the same side of the machine base, and the clamping mechanism includes a driving motor, a chain, a sliding seat and a clamping jaw; the driving motor is communicatively connected to the control system, and the driving motor is connected to the chain, and the chain is connected to the sliding seat; a slide rail is provided on the machine base, the sliding seat is slidably mounted on the slide rail, the clamping jaw is mounted on the sliding seat, and the clamping jaw at least partially extends above the material pulling channel.

8. The material pulling device for preventing material jamming of the automatic wire bonding machine according to claim 7, characterized in that: The base is provided with a mounting plate at a position below the chain, and a plurality of position sensors are installed on the mounting plate at intervals. Each of the position sensors is communicatively connected with the control system to detect the position of the clamping jaws and then transmit the signal to the control system.

9. The material pulling device for preventing material jamming of an automatic wire bonding machine according to claim 1, characterized in that: The machine base is provided with at least one pressing plate mechanism, which includes a lifting seat, a power assembly, and a lower pressing plate. The power assembly is installed on the machine base, the lifting seat is mechanically connected to the power assembly, the lower pressing plate is installed on the lifting seat, and the lower pressing plate at least partially extends above the material pulling channel.

10. The material pulling device for preventing material jamming of an automatic wire bonding machine according to claim 1, characterized in that: The clamping mechanism and the sensing mechanism are installed on the same side of the machine base.

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