Mechanism for automatically cleaning residual lead after chip forming and chip forming machine

Abstract

The invention discloses a mechanism for automatically cleaning a residual lead after chip forming and a chip forming machine, relates to the technical field of electronic manufacturing electromechanical equipment, and aims to solve the technical problem that a surface-mounted chip is scrapped due to the fact that the chip lead is bruised badly due to personnel missing. When the shearing action is completed, the two cutters are located at the intersecting position, a brush assembly capable of moving relative to the intersecting position is arranged at the horizontal height of the intersecting position, the brush assembly comprises at least one anti-static brush which reciprocates in the length direction of the intersecting position, and the bristle side of the anti-static brush abuts against the intersecting position of the two cutters. And the leads adsorbed on the two cutters are cleaned. By means of the anti-static brush which moves in a reciprocating mode, automatic removing and cleaning actions of residual leads after chips are formed by the surface-mounted chip forming equipment are achieved, the labor cost is reduced, and meanwhile the quality of the leads after the chips are formed is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of electronic manufacturing electromechanical equipment, and in particular to a mechanism for automatically cleaning residual leads after chip molding and a chip molding machine. Background Art

[0002] The chip molding machine is a single-sided adjustable mold molding equipment. The equipment molds the mounting type chips in a single-sided molding manner, that is, each chip molding can only mold one side of the chip; if the chip to be molded has leads on two sides extending out, single-sided molding needs to be performed twice to complete the chip molding operation; if the chip leads on four sides extend out of the chip leads, single-sided molding needs to be performed four times to complete the chip molding operation.

[0003] After each unilateral molding, some residual waste leads of the chip will be adsorbed on the tool that cuts the leads. If they are not cleaned in time and the molding continues, the residual waste leads will be pressed on the chip leads when the subsequent leads are molded, causing poor lead compression after molding, and even causing the chip to be scrapped.

[0004] To avoid the lead wire being damaged during chip molding, two people are currently used to perform chip molding: one person continues to press the hand lever to keep it still after the molding operation, and the other person is responsible for using an anti-static brush to clean the remaining leads and confirm the cleaning action after the molding machine lead cutter cuts the leads and keeps them still. After confirming that they are clean, the two repeat the above actions to perform chip lead molding operations. Summary of the invention

[0005] The embodiment of the present invention provides a mechanism for a chip molding machine to automatically clean residual leads after chip molding, so as to at least solve the technical problem of scrapping of mounted chips caused by poor chip lead compression due to personnel omission.

[0006] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0007] In the first aspect, the present invention proposes a mechanism for automatically cleaning residual leads after chip molding, which is used in a chip molding machine. The chip molding machine includes two relatively arranged cutters, and the two cutters move relative to each other to shear the leads. When the shearing action is completed, the two cutters are in an intersection position, and a brush assembly that can move relative to the intersection position is arranged at a horizontal height of the intersection position. The brush assembly includes at least one anti-static brush that reciprocates along the length direction of the intersection position, and the bristle side of the anti-static brush abuts against the intersection of the two cutters to clean the leads adsorbed on the two cutters.

[0008] Beneficial effect: The mechanism for automatically cleaning residual leads after chip molding provided by the embodiment of the present invention adopts a simple component structure and realizes the automatic removal and cleaning action of residual leads of the chip molding equipment after chip molding through the reciprocating anti-static brush. Compared with the existing production technology, the original chip molding required the cooperation of two personnel, but now only one operator is needed to complete it, and it can effectively solve the occurrence of scrapped chip caused by poor chip lead compression caused by personnel omission, while reducing labor costs and ensuring the quality of the leads after chip molding.

[0009] In a possible implementation, a driving assembly is further included, the driving assembly includes a driving wheel, a driven wheel and a belt, the inner circumference of the belt is wound around the outer circumference of the driving wheel and the driven wheel, and the belt transmits the torque of the driving wheel to the driven wheel to drive the driven wheel to rotate;

[0010] The anti-static brush also has a mounting side, which is arranged opposite to the bristle side;

[0011] The installation side of the antistatic brush is fixed on the outer peripheral surface of the belt, and the antistatic brush cleans the residual wires generated at the intersection of the two cutters as the belt moves.

[0012] Beneficial effect: The driving method of the anti-static brush is specifically described. The belt drive method is adopted, and the brush moves back and forth following the drive belt. The drive belt has a certain elasticity, so that the anti-static brush is in close contact with the intersection position, and the cleaning is more thorough.

[0013] In a possible implementation, another anti-static brush is further included which is arranged opposite to the one anti-static brush. When the belt rotates half of its circumference in the same direction, one of the anti-static brushes moves along the initial end of the intersection position to the end of the intersection position. When the belt rotates the other half of its circumference in the same direction, the other anti-static brush repeats the running track of one of the anti-static brushes. The two anti-static brushes run alternately.

[0014] Beneficial effect: The two anti-static brushes run alternately in and out during the entire belt rotation, making full use of the belt stroke and avoiding the anti-static brushes being separated from the intersection position during half of the belt stroke, thereby improving the efficiency of cleaning the lead wire.

[0015] In a possible implementation, when the antistatic brush is in contact with the junction, a portion of the antistatic brush covers the side wall of one of the cutters, and another portion of the antistatic brush covers the side wall of the other cutter.

[0016] Beneficial effect: The contact area between the anti-static brush and the two cutters is increased, the cleaning effect is improved, and residual leads are avoided.

[0017] In a possible implementation, the drive assembly further includes a motor and a rotating shaft, a time delay relay is installed on the outside of the motor, one end of the rotating shaft is connected to the rotor end of the motor through a coupling, and the other end of the rotating shaft is key-connected to the inner circumference of the driving wheel. In this arrangement, the rotor end of the motor drives the rotating shaft to rotate through the coupling, and the rotating shaft drives the driving wheel to rotate.

[0018] In a possible implementation, the drive assembly further includes a driven shaft, one end of which is key-connected to the inner circumference of the driven wheel. In this configuration, the driven shaft rotates synchronously with the driven wheel.

[0019] In a possible implementation, two fixed support frames are arranged opposite to each other, and the other end of the driven shaft is movably connected to one of the fixed support frames, and the driven wheel can move relative to the driving wheel. In this way, the distance between the driven wheel and the driving wheel can be adjusted, and then the tension of the belt can be adjusted, so that the anti-static brush is always in close contact with the intersection.

[0020] In a possible implementation, two chip forming machine support beams are further provided opposite to each other, and two fixed support frames are respectively embedded in the inner sides of the two chip forming machine support beams.

[0021] In a possible implementation, the chip forming machine also includes a hand pressure lever and a key switch on the front side, and the time delay relay is electrically connected to the key switch through a wire. When the hand pressure lever on the front side of the chip forming machine is pressed down to touch the key switch, the time delay relay works to drive the motor to rotate, and the anti-static brush on the belt brushes against the cutter to brush off the residual lead remaining on the cutter, and stops after the anti-static brush completes the stroke from left to right. This arrangement realizes the automatic removal and cleaning action of the residual lead of the chip forming equipment after chip forming.

[0022] In the second aspect, the present invention proposes a chip molding machine, including the above-mentioned mechanism for automatically cleaning the residual leads after chip molding, and also includes two relatively arranged cutting knives, one of which is the upper knife of the chip molding machine, and the other is the lower knife of the chip molding machine. The lower knife of the chip molding machine is stationary, and the upper knife of the chip molding machine moves relative to the lower knife of the chip molding machine to shear the leads. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an overall effect diagram of an embodiment of the present invention;

[0024] Figure 2 It is a top view of the assembly of the drive assembly, the tensioning assembly and the brush assembly according to an embodiment of the present invention;

[0025] In the figure: 1. chip forming machine support beam, 2. chip forming machine upper knife, 3. chip forming machine lower knife, 4. motor, 41. rotating shaft, 42. driving wheel, 5. delay relay, 6. driven wheel, 61. driven shaft, 62. tensioning screw, 7. fixed support frame, 8. belt, 9. brush assembly, 91. first anti-static brush, 92. second anti-static brush, 10. key switch, 11. hand pressure lever on the front of chip forming machine. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present disclosure, unless otherwise specified, directional terms such as "axial", "circumferential", and "radial" are generally defined relative to the rotation axis of the rotor in the drive motor, and "inner" and "outer" refer to the inside and outside of the corresponding component contours. The use of terms such as "first", "second", etc. is intended to distinguish different components and does not have order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements.

[0030] The present invention proposes a mechanism for automatically cleaning the residual leads after chip molding, which is applied in a chip molding machine, see Figure 1The chip forming machine includes two cutters arranged opposite to each other, and the two cutters move relative to each other to shear the leads. When the shearing action is completed, the two cutters are in an intersection position, and a brush assembly 9 that can move relative to the intersection position is arranged at a horizontal height of the intersection position. The brush assembly 9 includes at least one anti-static brush that reciprocates along the length direction of the intersection position, and the bristle side of the anti-static brush abuts against the intersection position of the two cutters to clean the leads adsorbed on the two cutters.

[0031] The mechanism for automatically cleaning residual leads after chip molding provided by the embodiment of the present invention adopts a simple component structure and realizes the automatic removal and cleaning action of residual leads of the mounting chip molding equipment after chip molding through a reciprocating anti-static brush. Compared with the existing production technology, which originally required the cooperation of two personnel to complete chip molding, now only one operator is needed to complete it, and it can effectively solve the occurrence of scrapped mounting chips caused by poor chip lead compression caused by personnel omission. While reducing labor costs, the quality of the leads after chip molding is guaranteed.

[0032] The following is a specific example of the reciprocating motion of the anti-static brush. Figure 2 The driving assembly includes a driving wheel 42, a driven wheel 6 and a belt 8. The inner circumference of the belt 8 is wound around the outer circumference of the driving wheel 42 and the driven wheel 6. The belt 8 transmits the torque of the driving wheel 42 to the driven wheel 6 to drive the driven wheel 6 to rotate. The anti-static brush also has a mounting side, which is arranged opposite to the bristle side. The mounting side of the anti-static brush is fixed to the outer circumference of the belt. The anti-static brush cleans the residual lead generated at the intersection of the two cutters as the belt moves. The driving method of the anti-static brush is specifically described. It adopts a belt drive method and moves back and forth with the transmission belt. The transmission belt has a certain elasticity, so that the anti-static brush is in close contact with the intersection, and the cleaning is more thorough.

[0033] To fully utilize the belt's full travel, continue to Figure 2 , and further includes another antistatic brush arranged opposite to one antistatic brush, when the belt 8 rotates half of its circumference in the same direction, one of the antistatic brushes moves along the initial end of the intersection position to the end of the intersection position, and when the belt 8 rotates the other half of its circumference in the same direction, the other antistatic brush repeats the running track of one of the antistatic brushes, and the two antistatic brushes run alternately. In this embodiment, one of the antistatic brushes is the first antistatic brush 91, and the other antistatic brush is the second antistatic brush 92. The two antistatic brushes run alternately in and out during the entire rotation stroke of the belt 8, making full use of the stroke of the belt 8, avoiding the antistatic brush from being separated from the intersection position during half of the stroke of the belt 8 during operation, and improving the work efficiency of cleaning the lead wire.

[0034] In order to improve the effect of cleaning the lead wire, when the antistatic brush contacts the intersection, a part of the antistatic brush covers the side wall of one of the cutters, and another part covers the side wall of the other cutter. In this embodiment, a part of the first antistatic brush 91 or the second antistatic brush 92 covers the side wall of one of the cutters, and another part covers the side wall of the other cutter, thereby increasing the contact area between the antistatic brush and the two cutters, improving the cleaning effect, and avoiding residual lead wires.

[0035] The driving method of the driving wheel 42 is specifically described below by way of example. Figure 1 and Figure 2 The driving assembly also includes a motor 4 and a shaft 41. A time delay relay 5 is installed outside the motor 4. One end of the shaft 41 is connected to the rotor end of the motor 4 through a coupling, and the other end of the shaft 41 is key-connected to the inner circumference of the driving wheel 42. The rotor end of the motor 4 drives the shaft 41 to rotate through the coupling, and the shaft 41 drives the driving wheel 42 to rotate.

[0036] The following is a specific example of the driving method of the driven wheel 6. Figure 1 and Figure 2 The driving assembly further comprises a driven shaft 61, one end of which is key-connected to the inner circumference of the driven wheel 6. The driven shaft 61 rotates synchronously with the driven wheel 6.

[0037] Continue to see Figure 1 , and also includes two fixed support frames 7 arranged opposite to each other, the other end of the driven shaft 61 is movably connected to one of the fixed support frames 7, and the driven wheel 6 can move relative to the driving wheel 42. By adding a tensioning screw 62 for adjusting the tension, the distance between the driven wheel 6 and the driving wheel 42 can be adjusted, and then the tension of the belt 8 can be adjusted, so that the anti-static brush is always in close contact with the intersection.

[0038] Continue to see Figure 1 , and also includes two chip forming machine support beams 1 arranged opposite to each other, and two fixed support frames 7 are respectively embedded in the inner sides of the two chip forming machine support beams 1.

[0039] Continue to see Figure 1 , and also includes a hand pressure rod 11 and a key switch 10 on the front of the chip molding machine. The delay relay 5 is electrically connected to the key switch 10 through a wire. After the hand pressure rod 11 on the front of the chip molding machine is pressed down to touch the key switch 10, the delay relay 5 works to drive the motor 4 to rotate. At this time, the anti-static brush on the belt 8 brushes against the cutter to brush off the residual lead remaining on the cutter, and stops after the anti-static brush completes the stroke from left to right. The automatic removal and cleaning action of the residual lead after the chip molding of the mounting chip molding equipment is realized.

[0040] In a possible example, a waste wire collection box is provided below the moving track of the anti-static brush to collect the cleaned waste wires, which can both utilize the waste and keep the working environment clean.

[0041] In the second aspect, the present invention proposes a chip forming machine, including the above-mentioned mechanism for automatically cleaning the residual leads after chip forming, and also including two relatively arranged cutters, one of which is an upper cutter 2 of the chip forming machine, and the other is a lower cutter 3 of the chip forming machine, the lower cutter 3 of the chip forming machine is stationary, and the upper cutter 2 of the chip forming machine moves relative to the lower cutter 3 of the chip forming machine to shear the leads. It should be noted that when the hand pressure lever 11 on the front of the chip forming machine descends, the upper cutter 2 descends, and the lower cutter 3 is stationary, and when the hand pressure lever 11 on the front of the chip forming machine rises, the upper cutter 2 rises, and the lower cutter 3 is stationary.

[0042] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0043] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A mechanism for automatically cleaning residual leads after chip molding, used in a chip molding machine, the chip molding machine comprises two cutters arranged opposite to each other, the two cutters move relative to each other to cut the leads, when the cutting action is completed, the two cutters are in an intersecting position, characterized in that: A brush assembly (9) is arranged at the horizontal height of the intersection position and is movable relative to the intersection position. The brush assembly (9) comprises at least one antistatic brush that reciprocates along the length direction of the intersection position, and the bristle side of the antistatic brush abuts against the intersection position of the two cutters to clean the leads adsorbed on the two cutters.

2. The mechanism for automatically cleaning residual leads after chip molding according to claim 1, characterized in that: Also includes: A driving assembly comprises a driving wheel (42), a driven wheel (6) and a belt (8), wherein the inner circumference of the belt (8) is wound around the outer circumference of the driving wheel (42) and the driven wheel (6), and the belt (8) transmits the torque of the driving wheel (42) to the driven wheel (6), thereby driving the driven wheel (6) to rotate; The antistatic brush also has a mounting side, which is arranged opposite to the bristle side; The installation side of the antistatic brush is fixed to the outer peripheral surface of the belt (8), and the antistatic brush cleans the residual wires generated at the intersection of the two cutters as the belt (8) moves.

3. The mechanism for automatically cleaning residual leads after chip molding according to claim 2, characterized in that: It also includes another antistatic brush arranged opposite to one of the antistatic brushes, when the belt (8) rotates along the same direction for half of its circumference, one of the antistatic brushes moves along the initial end of the intersection position to the end of the intersection position, and when the belt (8) rotates along the same direction for the other half of its circumference, the other antistatic brush repeats the running track of one of the antistatic brushes, and the two antistatic brushes run alternately.

4. The mechanism for automatically cleaning residual leads after chip molding according to claim 2, characterized in that: When the antistatic brush contacts the intersection position, a portion of the antistatic brush covers the side wall of one of the cutters, and another portion of the antistatic brush covers the side wall of the other cutter.

5. The mechanism for automatically cleaning residual leads after chip molding according to claim 2, characterized in that: The driving assembly further comprises a motor (4) and a rotating shaft (41); a time delay relay (5) is installed on the outer side of the motor (4); one end of the rotating shaft (41) is connected to the rotor end of the motor (4) via a coupling; and the other end of the rotating shaft (41) is key-connected to the inner circumference of the driving wheel (42).

6. The mechanism for automatically cleaning residual leads after chip molding according to claim 5, characterized in that: The driving assembly further comprises a driven shaft (61), one end of which is key-connected to the inner circumference of the driven wheel (6).

7. The mechanism for automatically cleaning residual leads after chip molding according to claim 6, characterized in that: It also comprises two fixed support frames (7) arranged opposite to each other, the other end of the driven shaft (61) is movably connected to one of the fixed support frames (7), and the driven wheel (6) can move relative to the driving wheel (42).

8. The mechanism for automatically cleaning residual leads after chip molding according to claim 7, characterized in that: It also comprises two chip forming machine support beams (1) arranged opposite to each other, and the two fixed support frames (7) are respectively embedded in the inner sides of the two chip forming machine support beams (1).

9. The mechanism for automatically cleaning residual leads after chip molding according to claim 5, characterized in that: It also includes a hand pressure lever (11) and a key switch (10) on the front of the chip forming machine. The time delay relay (5) is electrically connected to the key switch (10) through a wire. When the hand pressure lever (11) on the front of the chip forming machine is pressed down to touch the key switch (10), the time delay relay (5) works to drive the motor (4) to rotate. At this time, the anti-static brush on the belt (8) brushes against the cutter to brush off the residual lead remaining on the cutter, and stops after completing the travel from left to right.

10. A chip forming machine, characterized in that: The invention comprises a mechanism for automatically cleaning residual leads after chip molding as described in any one of claims 1 to 9, and also comprises two cutting knives arranged opposite to each other, one of which is an upper knife (2) of a chip molding machine, and the other is a lower knife (3) of the chip molding machine, wherein the lower knife (3) of the chip molding machine is stationary, and the upper knife (2) of the chip molding machine moves relative to the lower knife (3) of the chip molding machine to shear the leads.

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