A circuit breaker copper sheet cutting device

Abstract

The present invention provides a circuit breaker copper sheet cutting device, which includes: a lower die that moves up and down, a lower push rod that is vertically telescopic and extends through the lower die, an upper limit block fixedly connected to the top of the lower push rod, and an upper spring disposed around the lower push rod and located between the upper limit block and the lower die; an upper die that moves vertically up and down relative to the lower die, a push rod that is vertically telescopic and extends through the upper die, a lower limit block fixedly connected to the bottom of the upper push rod, and a lower spring disposed around the upper push rod and located between the lower limit block and the upper die, and a cutter fixedly disposed on the top surface of the upper die; a support platform that is fixedly disposed and located between the lower die and the upper die, the support platform being provided with a support frame, and the upper die being able to move in and out of the support frame from bottom to top. The present invention solves the problem in the prior art that after cutting, the circuit breaker copper sheet remains in the tool, resulting in low overall processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breaker copper sheet processing equipment, in particular to a circuit breaker copper sheet cutting device. Background Art

[0002] Circuit breaker copper sheet is one of the key components of the circuit breaker, and is generally obtained by cutting a larger copper sheet substrate. During actual processing, the copper sheet substrate is placed on a relatively stationary lower die, and the lower die is provided with a cutter of the required shape. A hydraulically driven upper die is also provided above the lower die. The upper die moves downward under hydraulic drive to contact the copper sheet substrate and continue to apply pressure, thereby forcing the cutter to cut out the corresponding shape, thus obtaining the circuit breaker copper sheet. However, after cutting, the upper die moves upward, and the circuit breaker copper sheet will be stuck in the cutter (stuck in a closed structure with the same outer contour as the circuit breaker copper sheet), so it is necessary to use a tool to lift it up and then remove it. This process is relatively dangerous and also results in a slower overall speed, which ultimately makes the cutting processing efficiency of the circuit breaker copper sheet not improved. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a circuit breaker copper sheet cutting device, which solves the problem in the prior art that the circuit breaker copper sheet remains in the tool after cutting, resulting in low overall processing efficiency.

[0004] According to an embodiment of the present invention, a circuit breaker copper sheet cutting device includes: a lower pressing die that moves up and down, a lower push rod is vertically extended and penetrated on the lower pressing die, the top of the lower push rod is fixedly connected to an upper limit block, and an upper spring is also surrounded on the lower push rod and located between the upper limit block and the lower pressing die; an upper push die, the upper push die is vertically extended and penetrated on the upper push die, the bottom end of the upper push rod is fixedly connected to the lower limit block, the upper push rod is also surrounded by a lower spring located between the lower limit block and the upper push die, and a tool is fixedly provided on the top surface of the upper push die; a support platform that is fixedly provided and located between the lower pressing die and the upper push die, the support platform is provided with a support frame, and the upper push die can move in and out of the support frame from bottom to top.

[0005] The upper push rod is pushed up by the upper push rod, so that the copper sheet of the circuit breaker is lifted up, thereby smoothly disengaging from the tool on the upper push rod, thereby enabling faster material cutting, and solving the problem that the circuit breaker copper sheet will remain in the tool after cutting in the prior art, resulting in low overall processing efficiency.

[0006] Furthermore, the cutter is a closed structure in the shape of the outer contour of the circuit breaker copper sheet, and the upper push rod is located in the closed structure.

[0007] Furthermore, the upper push rod includes a long push rod and a short push rod respectively located at both ends of the closed structure, the long push rod is surrounded by the first lower spring, and the short push rod is surrounded by the second lower spring.

[0008] Furthermore, the cutter comprises a pair of cutters symmetrically arranged at both ends of the upper mold, and the two long ejector rods are arranged close to each other.

[0009] Furthermore, the bottom surface of the upper mold is recessed to provide a first accommodating groove and a second accommodating groove, the long push rod and the short push rod pass through the first accommodating groove and the second accommodating groove respectively, and the upper ends of the first lower spring and the second lower spring are respectively located in the first accommodating groove and the second accommodating groove.

[0010] Furthermore, the lower limit block can be accommodated in the first accommodating groove or the second accommodating groove.

[0011] Furthermore, a pair of lower grooves located in the closed structure are recessed on the top surface of the upper mold, and the top ends of the long push rod and the short push rod are respectively fixedly connected to the top plates, and the two top plates can be respectively accommodated in the two lower grooves.

[0012] Furthermore, a depression is provided on the bottom surface of the lower pressing die for the tool to be inserted into, and the lower ejector rod is located within the depression.

[0013] Furthermore, it also includes a mounting platform fixedly connected to the support platform, the mounting platform includes a mounting plate located above the support platform, and a first driver for driving the lower die to move up and down is also provided on the mounting plate, and a second driver for driving the upper die to move up and down is also fixedly provided below the support platform.

[0014] Furthermore, a pair of material guide troughs are fixedly connected to the lower wall of the support platform, and both material guide troughs have outlets facing away from each other. The second driver is located below the two material guide troughs and has a telescopic end located in the two material guide troughs.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] During the cutting process, the lower ejector rod and the upper ejector rod can prevent the copper sheet substrate from being accidentally displaced. At the same time, after cutting, it is ensured that the circuit breaker copper sheet can be smoothly separated from the copper sheet substrate and smoothly exited from the tool. Therefore, the material can be cut faster, which solves the problem in the prior art that the circuit breaker copper sheet remains in the tool after cutting, resulting in low overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0018] Figure 2 The overall structure of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0019] Figure 3 The overall structure of the embodiment of the present invention is shown in FIG. Figure 3 ;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of the local structure at center A;

[0021] Figure 5 for Figure 4 A magnified schematic diagram of the local structure at point B in the middle;

[0022] In the above drawings:

[0023] Lower die 1, lower ejector pin 2, upper limit block 3, upper spring 4, upper ejector die 5, lower limit block 6, tool 7, support platform 8, support frame 9, support plate 10, copper sheet base plate 11, circuit breaker copper sheet 12, long ejector pin 13, short ejector pin 14, first lower spring 15, second lower spring 16, mounting platform 17, mounting plate 18, first driver 19, second driver 20, material guide trough 21, telescopic end 22, first accommodating groove 23, second accommodating groove 24, recess 25, top plate 26, lower groove 27. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 should not be understood as limiting the present invention.

[0026] like Figure 1-4 As shown, this embodiment provides a circuit breaker copper sheet cutting device, which includes: a lower pressing die 1 that moves up and down, a lower push rod 2 is vertically telescopic and penetrated on the lower pressing die 1, the top of the lower push rod 2 is fixedly connected to an upper limit block 3, and an upper spring 4 is also surrounded on the lower push rod 2 and located between the upper limit block 3 and the lower pressing die 1; an upper top die 5, which is vertically movable up and down relative to the lower pressing die 1, and an upper push rod is vertically telescopic and penetrated on the upper top die 5, the bottom end of the upper push rod is fixedly connected to a lower limit block 6, and the upper push rod is also surrounded by a lower spring located between the lower limit block 6 and the upper top die 5, and a tool 7 is fixedly provided on the top surface of the upper top die 5; a support platform 8 that is fixedly provided and located between the lower pressing die 1 and the upper top die 5, the support platform 8 is provided with a support frame 9, and the upper top die 5 can move in and out of the support frame 9 from bottom to top, and the two ends of the support platform 8 are respectively stabilized by standing on the ground through support plates 10.

[0027] In the above embodiment, the copper sheet substrate 11 is placed on the supporting frame 9, and the lower pressing die 1 is moved first so that it and the lower ejector rod 2 thereon are both against the top surface of the copper sheet substrate 11, and the upper spring 4 provides elastic force so that the lower ejector rod 2 can be against the copper sheet substrate 11, and then the upper ejector die 5 is moved. With the assistance of the lower spring, the upper ejector rod first is against the bottom surface of the copper sheet substrate 11, and then the tool 7 is against and completes the cutting. Similar to the prior art, the tool 7 is a closed structure of the outer contour shape of the circuit breaker copper sheet 12, but in this solution, the upper ejector rod and the lower ejector rod 2 are both within the range of the closed structure, after which the lower pressing die 1 moves upward and the upper ejector die 5 moves downward. During the process, the upper spring 4 is continuously in a compressed state, so that the lower ejector rod 2 can It continues to abut against the circuit breaker copper sheet 12 for a distance, so that the circuit breaker copper sheet 12 can smoothly descend with the upper ejector die 5 and disengage from the copper sheet base plate 11. At the same time, with the assistance of the lower spring, the upper ejector rod also abuts against the circuit breaker copper sheet 12. After continuing to descend, the lower ejector rod 2 disengages from the circuit breaker copper sheet 12, and then the upper part of the circuit breaker copper sheet 12 loses the downward pressure force. With the assistance of the lower spring, the upper ejector rod pushes the circuit breaker copper sheet 12 upward and is lifted up, so that the circuit breaker copper sheet 12 is smoothly separated from the tool 7 on the upper ejector die 5. Finally, the circuit breaker copper sheet 12 achieves faster blanking, which solves the problem in the prior art that the circuit breaker copper sheet 12 remains in the tool 7 after cutting, resulting in low overall processing efficiency.

[0028] In a further exemplary embodiment, Figure 1-4As shown, the upper ejector rod includes a long ejector rod 13 and a short ejector rod 14 respectively located at both ends of the closed structure. The long ejector rod 13 is surrounded by a first lower spring 15, and the short ejector rod 14 is surrounded by a second lower spring 16. With the assistance of the first lower spring 15, the long ejector rod 13 can push one end of the circuit breaker copper sheet 12 higher than one side of the short ejector rod 14, so that the circuit breaker copper sheet 12 can be flipped toward the side of the short ejector rod 14, smoothly guided to the side, and the unloading is achieved faster. In particular, the first lower spring 15 can have a greater elastic force than the second lower spring 16 to assist the long ejector rod 13 to reach the highest point in the same time as the short ejector rod 14, and more smoothly eject the circuit breaker copper sheet 12 in a flipping manner; in a better solution, the tool 7 includes a pair symmetrically arranged at both ends of the upper top mold 5, and the two long ejector rods 13 are arranged close to each other, so that more circuit breaker copper sheets 12 can be processed simultaneously and unloading can be achieved in opposite directions at the same time. , do not interfere with each other; in a further exemplary scheme, the present device also includes a mounting platform 17 fixedly connected to the support platform 8, the mounting platform 17 includes a mounting plate 18 located above the support platform 8, and the mounting plate 18 is also provided with a first driver 19 that drives the lower die 1 to move up and down, and a second driver 20 that drives the upper die 5 to move up and down is fixedly provided below the support platform 8. The first driver 19 and the second driver 20 can both be hydraulic equipment. A pair of connected guide grooves 21 are also fixedly connected to the lower wall surface of the support platform 8. The two guide grooves 21 have outlets facing each other. The second driver 20 is located below the two guide grooves 21 and has a telescopic end 22 located in the two guide grooves 21, that is, after the circuit breaker copper sheet 12 is ejected, it falls into the two guide grooves 21 on both sides. The guide grooves 21 are tilted outward, so as to smoothly guide the circuit breaker copper sheet 12 out. A storage container (such as a storage basket) is placed below the guide groove 21 to collect the circuit breaker copper sheet 12.

[0029] like Figure 1-4 As shown, in a more detailed exemplary scheme, the bottom surface recess 25 of the upper top mold 5 is provided with a first receiving groove 23 and a second receiving groove 24, the long push rod 13 and the short push rod 14 respectively pass through the first receiving groove 23 and the second receiving groove 24, and the upper ends of the first lower spring 15 and the second lower spring 16 are respectively located in the first receiving groove 23 and the second receiving groove 24. At the same time, the lower limit block 6 can be accommodated in the first receiving groove 23 or the second receiving groove 24, providing more sufficient operating space for the long push rod 13 and the short push rod 14 (especially the long push rod 13) under the upper top mold 5.

[0030] like Figure 4 and 5As shown, in a more detailed solution, the bottom surface of the lower die 1 is further recessed 25 and provided with a recess 25 for the tool 7 to press into, and the lower ejector rod 2 is located within the range of the recess 25. After the tool 7 presses into the recess 25, the cutting is completed. The lower ejector rod 2 is located within the range of the recess 25 to ensure that it can smoothly press against the cut circuit breaker copper sheet 12, thereby ensuring that the circuit breaker copper sheet 12 is smoothly separated from the copper sheet substrate 11; in more detail, the top surface of the upper die 5 is further recessed 25 and provided with a pair of lower grooves 27 located in the closed structure, and the long ejector rod 13 The top ends of the long push rod 13 and the short push rod 14 are respectively fixedly connected with a push plate 26, and the two push plates 26 can be respectively accommodated in the two lower grooves 27. This arrangement prevents the long push rod 13 and the short push rod 14 from being disengaged from the upper push mold 5 through the push plate 26. Similar lower die 1 and lower push rod 2 can also be arranged in this way, and a similar structure is arranged in the recess 25 on the bottom surface of the lower die 1 and on the lower end of the lower push rod 2 (the lower push rod 2 can also be prevented from being disengaged from the lower die 1 by fixing the two ends of the upper spring 4 to the upper limit plate and the lower die 1 respectively).

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A circuit breaker copper sheet cutting device, characterized in that: include: A lower die that moves up and down, a lower ejector rod that is vertically telescopic and passes through the lower die, an upper limit block that is fixedly connected to the top of the lower ejector rod, and an upper spring that is located between the upper limit block and the lower die and surrounds the lower ejector rod; An upper mold is arranged to move vertically up and down relative to the lower pressing mold. An upper ejector rod is vertically extended and penetrates the upper mold. The lower end of the upper ejector rod is fixedly connected to a lower limit block. A lower spring is also arranged around the upper ejector rod and is located between the lower limit block and the upper mold. A tool is fixedly provided on the top surface of the upper mold. A support platform is fixedly arranged and located between the lower die and the upper ejector die, the support platform is provided with a support frame, and the upper ejector die can move in and out of the support frame from bottom to top; the tool is a closed structure in the shape of the outer contour of the circuit breaker copper sheet, and the upper ejector rod is located in the closed structure; the upper ejector rod includes a long ejector rod and a short ejector rod respectively located at both ends of the closed structure, the long ejector rod is surrounded by a first lower spring, and the short ejector rod is surrounded by a second lower spring; the first lower spring has a greater elastic force than the second lower spring.

2. The circuit breaker copper sheet cutting device according to claim 1, characterized in that: The cutters include a pair symmetrically arranged at both ends of the upper mold, and the two long ejector rods are arranged close to each other.

3. The circuit breaker copper sheet cutting device according to claim 2, characterized in that: The bottom surface of the upper mold is recessed to provide a first receiving groove and a second receiving groove, the long push rod and the short push rod pass through the first receiving groove and the second receiving groove respectively, and the upper ends of the first lower spring and the second lower spring are respectively located in the first receiving groove and the second receiving groove.

4. The circuit breaker copper sheet cutting device according to claim 3, characterized in that: The lower limit block can be accommodated in the first accommodating groove or the second accommodating groove.

5. The circuit breaker copper sheet cutting device according to claim 2, characterized in that: A pair of lower grooves located in the closed structure are also recessed on the top surface of the upper mold, and the top ends of the long push rod and the short push rod are respectively fixedly connected to a top plate, and the two top plates can be respectively accommodated in the two lower grooves.

6. The circuit breaker copper sheet cutting device according to claim 2, characterized in that: The bottom surface of the lower pressing die is further provided with a recess for the tool to be pressed into, and the lower ejector rod is located within the range of the recess.

7. The circuit breaker copper sheet cutting device according to any one of claims 2 to 6, characterized in that: It also includes a mounting platform fixedly connected to the support platform, the mounting platform includes a mounting plate located above the support platform, and the mounting plate is also provided with a first driver for driving the lower die to move up and down, and a second driver for driving the upper die to move up and down is also fixedly provided under the support platform.

8. The circuit breaker copper sheet cutting device according to claim 7, characterized in that: A pair of material guide troughs are fixedly connected to the lower wall of the support platform, and both material guide troughs have outlets facing each other. The second driver is located below the two material guide troughs and has a telescopic end located in the two material guide troughs.

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