A synchronous punching mechanism for upper and lower dies

Abstract

The present invention discloses a synchronous punching mechanism of upper and lower dies, including a base, a lifting frame, a guide column assembly, a die spring, an upper cutting die, a lifting plate, a lower cutting die and a cam servo power mechanism, wherein the lower bottom plate of the lifting frame is movably mounted on the base through four guide column assemblies, and a die spring for buffering is also installed between the lower bottom plate and the base, the upper cutting die is installed on the upper top plate of the lifting frame, the guide column of the lifting frame is sleeved with a lifting plate, and the lower cutting die opposite to the upper cutting die is installed on the lifting plate, and the cam servo power mechanism is installed on the base, and the cam servo power mechanism synchronously drives the upper cutting die and the lower cutting die to move relative to or back to each other. Through the above-mentioned method, the present invention can synchronously drive the upper cutting die and the lower cutting die to move relative to or back to each other, complete the closed die cutting and open die, ensure the consistency of the upper and lower die movements, and guide to ensure the closing die cutting accuracy, which can be completed in one go, save costs, and facilitate debugging.

Description

Technical Field

[0001] The invention relates to the field of mechanical technology, in particular to an upper and lower die synchronous punching mechanism. Background Art

[0002] Automatic cutting machines are used for cutting and splitting sheets in various industries. They do not require any molds and are controlled by system software. They can directly cut products. They are highly automated and easy to operate. They are cutting equipment used in many industries.

[0003] When cutting, the commonly used cutting devices usually move the cutter in only one direction. During the cutting process, the cutter is easy to move the sheet, and the cutting accuracy is poor. At present, there are some cutting lower dies and cutting upper dies on the market that move relative to each other. In this way, the cutter has relatively little impact on the sheet, but two power mechanisms are required to drive the upper and lower dies respectively, which makes it difficult to achieve synchronous cutting and affects the cutting accuracy. In addition, the two power mechanisms occupy installation space and the cost is relatively high.

[0004] Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a synchronous punching mechanism for upper and lower dies. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide a synchronous punching mechanism for upper and lower dies, which can synchronously drive the upper cutting die and the lower cutting die to move relative to or back to each other, complete closed die cutting and open die cutting, ensure the consistency of the upper and lower die movements, and guide to ensure the closing and cutting accuracy, which can be completed in one go, save costs, and is easy to debug. It can meet the cutting needs of sheets of different thicknesses and has a wide range of applicability.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide an upper and lower die synchronous punching mechanism, which includes a base, a lifting frame, a guide column assembly, a mold spring, a cutting upper mold, a lifting plate, a cutting lower mold and a cam servo power mechanism. The lower bottom plate of the lifting frame is movably mounted on the base through four guide column assemblies, and a mold spring for buffering is also installed between the lower bottom plate and the base. The cutting upper mold is installed on the upper top plate of the lifting frame, the lifting plate is sleeved on the guide column of the lifting frame, and the cutting lower mold opposite to the cutting upper mold is installed on the lifting plate. The cam servo power mechanism is installed on the base, and the cam servo power mechanism synchronously drives the cutting upper mold and the cutting lower mold to move relative or back to each other.

[0007] Preferably, the cam servo power mechanism includes a support plate, a rotating shaft, a servo motor, a cam, a roller bearing seat, an eccentric wheel and a support assembly. The two support plates are vertically installed on the base, and the rotating shaft is horizontally inserted on the two support plates through the bearing seat. A servo motor is installed on the side end of the support plate, and the servo motor drives the rotating shaft to rotate. A cam is installed in the middle of the rotating shaft, and the roller bearing seat is installed on the bottom surface of the lifting plate. The rotating surface of the roller bearing seat rests on the cam. Eccentric wheels are also installed on the rotating shafts on both sides of the cam. The eccentric wheels are movably sleeved in the support assembly, and the support assembly is fixed to the lower bottom plate of the lifting frame. The eccentric directions of the cam and the eccentric wheel are opposite.

[0008] Preferably, the support assembly includes a support plate and a connecting rod, the two support plates are fixedly connected by the connecting rod, the lower support plate is fixed to the lower base plate, the eccentric wheel is located between the two support plates, and the two support plates are provided with lifting grooves matching the eccentric wheel on opposite sides.

[0009] Preferably, the cutting upper die includes an adjustment bracket, an adjustment screw, an upper die lifting plate, an upper cutter and a guide rod, the adjustment bracket is installed on the upper top plate of the lifting frame, the adjustment screw is installed on the adjustment bracket, the lower part of the adjustment screw passes through the upper top plate and is connected to the upper die lifting plate through a floating joint, a group of upper cutters are installed on the lower plane of the upper die lifting plate, the cutting lower die is provided with a cutting edge cooperating with the upper cutter, and four guide rods are also installed on the upper die lifting plate, and the guide rods pass through the cutting lower die.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The cam servo power mechanism synchronously drives the upper cutting die and the lower cutting die to move relative to or back to each other to complete the closed die cutting and open die cutting, ensuring the consistency of the upper and lower die movements in one go.

[0012] Driven by a single power mechanism, saving costs;

[0013] Four guide rods passing through the lower cutting die are installed on the upper die lifting plate to play a guiding role and ensure the cutting accuracy of the die closing;

[0014] According to the thickness of the sheet, the adjusting screw is turned to adjust the upper and lower positions of the upper die lifting plate, which is convenient for debugging and can meet the cutting of sheets of different thicknesses, with wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a structural schematic diagram of a synchronous punching mechanism of upper and lower dies.

[0016] Figure 2 for Figure 1 Partial enlarged image.

[0017] Figure 3 It is the main view of a synchronous punching mechanism of upper and lower dies. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0019] See also Figures 1 to 3 , the embodiment of the present invention includes:

[0020] A synchronous punching mechanism for upper and lower dies, comprising a base 1, a lifting frame 2, a guide column assembly 3, a die spring 4, a cutting upper die 5, a lifting plate 6, a cutting lower die 7 and a cam servo power mechanism 8, wherein a lower bottom plate 21 of the lifting frame 2 is movably mounted on the base 1 through four guide column assemblies 3, a die spring 4 for buffering is also installed between the lower bottom plate 21 and the base 1, an upper cutting die 5 is installed on an upper top plate 22 of the lifting frame 2, a lifting plate 6 is sleeved on the guide column 23 of the lifting frame 2, a cutting lower die 7 opposite to the cutting upper die 5 is installed on the lifting plate 6, a cam servo power mechanism 8 is installed on the base 1, and the cam servo power mechanism 8 synchronously drives the cutting upper die 5 and the cutting lower die 7 to move relative to or back to each other.

[0021] The cam servo power mechanism 8 includes a support plate 81, a rotating shaft 82, a servo motor 83, a cam 84, a roller bearing seat 85, an eccentric wheel 86 and a support assembly 87. The two support plates 81 are vertically installed on the base 1, and the rotating shaft 82 is horizontally inserted on the two support plates 81 through the bearing seat. The servo motor 83 is installed on the side end of the support plate 81. The servo motor 83 drives the rotating shaft 82 to rotate. The cam 84 is installed in the middle of the rotating shaft 82. The roller bearing seat 85 is installed on the bottom surface of the lifting plate 6, and the rotating surface of the roller bearing seat 85 is placed on the cam 84. The rotation of the cam 84 drives the roller bearing seat 85 to lift or lower The cam 84 and the eccentric wheel 86 are respectively arranged on the upper and lower cutting molds 5, and the eccentric wheel 86 is arranged on the upper and lower cutting molds 5. The eccentric wheel 86 is arranged on the upper and lower cutting molds 5, and the eccentric wheel 86 is arranged on the lower and lower cutting molds 5. The eccentric wheel 86 is arranged on the upper and lower cutting molds 5, and the eccentric wheel 86 is arranged on the lower and lower cutting molds 5, and the eccentric wheel 86 is arranged on the lower and upper cutting molds 5, and the eccentric wheel 86 is arranged on the lower and upper cutting molds 5, and the eccentric wheel 86 is arranged on the lower and upper cutting molds 5, and the eccentric wheel 86 is arranged on the lower and upper cutting molds 5, and the eccentric wheel 86 is arranged on the lower and upper cutting molds 5, and the eccentric wheel 86 is arranged on the upper and lower ...

[0022] The support assembly 87 includes a support plate 871 and a connecting rod 872. The two support plates 871 are fixedly connected by the connecting rod 872. The lower support plate 871 is fixed on the lower base plate 21. The eccentric wheel 86 is located between the two support plates 871. The two support plates 871 are provided with lifting grooves 870 that cooperate with the eccentric wheel 86 on the opposite sides.

[0023] The cutting upper die 5 includes an adjusting bracket 51, an adjusting screw 52, ​​an upper die lifting plate 53, an upper cutter 54 and a guide rod 55. The adjusting bracket 51 is installed on the upper top plate 22 of the lifting frame 2. The adjusting bracket 51 is installed with an adjusting screw 52. The lower part of the adjusting screw 52 passes through the upper top plate 22 and is connected to the upper die lifting plate 53 through a floating joint. A group of upper cutters 54 are installed on the lower plane of the upper die lifting plate 53. The cutting lower die 7 is provided with a cutting edge that cooperates with the upper cutter 54. Four guide rods 55 are also installed on the upper die lifting plate 53. The guide rods 55 pass through the cutting lower die 7 to play a guiding role to ensure the mold cutting accuracy. The upper and lower positions of the upper die lifting plate 53 are adjusted by rotating the adjusting screw 52 according to the thickness of the sheet.

[0024] When the upper and lower die synchronous punching mechanism of the present invention is working, when the sheet to be cut is transported between the cutting upper die 5 and the cutting lower die 7, the servo motor 83 drives the rotating shaft 82 to rotate, and the rotating shaft 82 drives the cam 84 to rotate. When the long arm end of the cam 84 rotates to the upper side, the cam 84 lifts the roller bearing seat 85, thereby driving the cutting lower die 7 to move upward, and the cup body on the sheet falls into the cutting edge of the cutting lower die 7. At the same time, the rotating shaft 82 drives the cam 84 to rotate the eccentric wheel 86, and the long arm end of the eccentric wheel 86 rotates to the lower side, and the eccentric wheel 86 abuts against the supporting plate 871 below, and the supporting assembly 87 is driven downward by the eccentric wheel 86, thereby driving the cutting upper die 5 to move downward. At this time, the cutting upper die 5 and the cutting lower die 7 move relative to each other, and the cup body on the sheet is cut off by the mold. After the cutting is completed, the rotating shaft 82 continues to rotate, and the cutting upper die 5 and the cutting lower die 7 move in opposite directions, open the mold, and wait for the next group of cutting materials.

[0025] The present invention discloses an upper and lower die synchronous punching mechanism, which can synchronously drive the cutting upper die and the cutting lower die to move relative to or back to each other, complete the closed die cutting and open die cutting, ensure the consistency of the upper and lower die movements, guide to ensure the closing die cutting accuracy, complete the process in one go, save costs, facilitate debugging, meet the cutting needs of sheets of different thicknesses, and have wide applicability.

[0026] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A synchronous punching mechanism for upper and lower dies, characterized in that: The upper and lower die synchronous punching mechanism comprises a base, a lifting frame, a guide column assembly, a die spring, a cutting upper die, a lifting plate, a cutting lower die and a cam servo power mechanism, wherein the lower bottom plate of the lifting frame is movably mounted on the base through four guide column assemblies, and a die spring for buffering is also installed between the lower bottom plate and the base, the upper cutting die is installed on the upper top plate of the lifting frame, the lifting plate is sleeved on the guide column of the lifting frame, and the cutting lower die opposite to the cutting upper die is installed on the lifting plate, and the cam servo power mechanism is installed on the base, and the cam servo power mechanism synchronously drives the cutting upper die and the cutting lower die to move relative to or back to each other; The cam servo power mechanism comprises a support plate, a rotating shaft, a servo motor, a cam, a roller bearing seat, an eccentric wheel and a support assembly. The two support plates are vertically mounted on the base. The rotating shaft is horizontally inserted on the two support plates through the bearing seat. The side ends of the support plates are mounted with servo motors. The servo motor drives the rotating shaft to rotate. A cam is mounted in the middle of the rotating shaft. The roller bearing seat is mounted on the bottom surface of the lifting plate. The rotating surface of the roller bearing seat rests on the cam. Eccentric wheels are also mounted on the rotating shafts on both sides of the cam. The eccentric wheels are movably sleeved in the support assembly. The support assembly is fixed to the lower bottom plate of the lifting frame. The eccentric directions of the cam and the eccentric wheel are opposite. The rotating shaft drives the cam to rotate. When the long arm end of the cam rotates upward, the cam lifts the roller bearing seat, thereby driving the lower cutting die to move upward, and the cup body on the sheet falls into the cutting edge of the lower cutting die. At the same time, the rotating shaft drives the cam to rotate the eccentric wheel, and the long arm end of the eccentric wheel rotates downward, and the supporting assembly is driven downward by the eccentric wheel, thereby driving the upper cutting die to move downward.

2. The upper and lower die synchronous punching mechanism according to claim 1, characterized in that: The support assembly includes a support plate and a connecting rod. The two support plates are fixedly connected by the connecting rod. The lower support plate is fixed to the lower base plate. The eccentric wheel is located between the two support plates. The two support plates are provided with lifting grooves matching the eccentric wheel on opposite sides.

3. The upper and lower die synchronous punching mechanism according to claim 1, characterized in that: The cutting upper die comprises an adjusting bracket, an adjusting screw, an upper die lifting plate, an upper cutting knife and a guide rod. The adjusting bracket is mounted on the upper top plate of the lifting frame, and an adjusting screw is mounted on the adjusting bracket. The lower portion of the adjusting screw passes through the upper top plate and is connected to the upper die lifting plate through a floating joint. A group of upper cutting knives are mounted on the lower plane of the upper die lifting plate. A cutting edge cooperating with the upper cutting knife is arranged on the cutting lower die. Four guide rods are also mounted on the upper die lifting plate, and the guide rods pass through the cutting lower die.

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