Intra-die material breaking mechanism of multi-station die

Abstract

The utility model relates to the field of stamping equipment, in particular to an in-die material breaking mechanism of a multi-station die. The in-mold material cutting mechanism of the multi-station mold comprises a servo feeder, an upper mold assembly and a lower mold assembly, the servo feeder comprises a feeding mechanism and a correcting mechanism, the upper mold assembly comprises an upper mold material cutting knife, an upper mold material pressing plate and an upper mold plate, and the lower mold assembly comprises a workbench, a lower mold material cutting knife and a mold. By means of the in-die material cutting machine for the multi-station die, the problem that raw material uncoiling needs to be completed through a special machine tool and a die is solved, the blanking procedure and other procedures are integrated together, and along with stamping production, parts are produced while blanking is conducted. And stock of the raw materials is reduced, and extra stock sites and related logistics cost needed by the uncoiled raw materials are reduced.

Description

Technical Field

[0001] The present application relates to stamping production equipment, and in particular to a multi-station die in-mold material cutting mechanism. Background Art

[0002] In the production of multi-station stamping equipment, the raw materials need to be precisely cut to the prepared size and blanked using a separate blanking die and a special stamping machine. When the multi-station punching machine is started, it not only affects the production efficiency but also increases the demand for production personnel and the labor intensity of the work. The multi-station mold in-mold cutting mechanism of the present application, compared with the mechanism that requires the sheet material to be loaded onto the machine multiple times for the production of multi-station machine tools, the multi-station mold in-mold cutting mechanism can directly use the coiled material for production, only requires one loading, the machine tool automatically unfolds the sheet, directly cuts the material through this mechanism, and then sends it to the next process for processing by a robot until the final parts are completed by stamping production. Therefore, the multi-station mold in-mold cutting mechanism of the present application solves the problem that the unwinding of raw materials requires a special machine tool and mold to be completed, integrates the blanking process with other processes, and produces parts while blanking as the stamping production proceeds. It reduces the inventory of raw materials and reduces the additional storage space and related logistics costs required for the raw materials after unwinding. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the above-mentioned prior art and provide a multi-station mold in-mold cutting mechanism, which is connected to the subsequent stamping process equipment. In order to achieve the above-mentioned purpose, the utility model has the following structure:

[0004] A multi-station mold in-mold cutting mechanism includes a servo feeder, an upper mold assembly and a lower mold assembly; the servo feeder includes a feeding mechanism and a correction mechanism, one end of the feeding mechanism is connected to the lower mold assembly, and the other end is connected to the correction mechanism.

[0005] Furthermore, the feeding mechanism includes a set of rollers that clamp the sheet material. A servo motor drives the rollers to clamp and feed the sheet material, achieving continuous and stable feeding. The feeding mechanism is also equipped with a material ring detection system that feeds back the detection signal of the material ring quantity to the control chip of the servo feeder. The control chip then controls the speed of the spindle motor to achieve precise control of the feeding length.

[0006] Furthermore, the correction mechanism includes two layers of parallel rollers, and adopts a parallel roller correction method. The speed and spacing of the rollers are controlled by a control chip to continuously correct the material and eliminate the unevenness and wavy shape of the material.

[0007] Furthermore, the multi-servo feeder further comprises a material rack mechanism, which is arranged at the inlet end of the correction mechanism, and the material rack mechanism comprises a rotatable cantilever shaft and a matching bracket. The rotatable cantilever shaft is controlled by the control chip to realize intermittent rotation.

[0008] Furthermore, the multi-station mold in-mold cutting mechanism includes an upper mold assembly and a lower mold assembly. The upper mold assembly includes an upper mold cutting knife, an upper mold pressing plate, and an upper mold plate. The bottom surface of the upper mold pressing plate is a working plane. The upper mold cutting knife and the upper mold pressing plate are arranged on the upper mold plate. The cutting direction of the upper mold cutting knife is perpendicular to the working plane. The lower mold assembly includes a workbench and a lower mold cutting knife. The upper surface of the workbench is parallel to the working plane. The lower mold cutting knife is arranged in a groove of the workbench and is located below the upper mold cutting knife. When the upper mold pressing plate is pressed downward, the upper mold cutting knife and the lower mold cutting knife cooperate with each other to cut, thereby cutting the complete coil into a single workpiece.

[0009] Furthermore, a mold is provided on the workbench, and a high-speed blade is provided inside the mold. When the upper mold pressing plate is pressed down, the upper mold cutting knife cooperates with the lower mold cutting plate to cut, and at the same time, the mold cooperates with the upper mold pressing plate to complete the blanking.

[0010] Furthermore, in the in-mold cutting mechanism of the multi-station mold, the lower mold cutting knife is arranged directly below the upper mold cutting knife, and the cutting edges of the lower mold cutting knife and the upper mold cutting knife coincide with each other during cutting.

[0011] Furthermore, in this multi-station in-mold cutting mechanism, the horizontal position of the upper die cutting blade is adjustable, allowing the upper die cutting blade to cut in an offset position relative to the upper die cutting blade. This offset cutting approach reduces pressure on the blade edge, minimizing burrs and cracks when cutting sheet materials, and is suitable for sheet materials of varying thicknesses.

[0012] Furthermore, in the multi-station mold in-mold cutting mechanism, when staggered cutting is adopted, the cutting distance between the upper and lower mold cutting knives is preferably in the range of greater than half the thickness and less than 2 times the thickness of the plate.

[0013] Furthermore, in the in-mold cutting mechanism of the multi-station mold, the lower mold assembly also includes a lower mold floating block, one end of the lower mold floating block is connected to the discharge port of the feeding mechanism, and the other end is connected to the workbench, and the height of the lower mold floating block is greater than or equal to the height of the workbench.

[0014] Preferably, the height of the lower mold floating block is equal to the height of the workbench.

[0015] Furthermore, in the multi-station mold in-mold cutting mechanism, the upper mold assembly also includes an upper mold pressing plate guide pin group and a nitrogen cylinder, one end of the upper mold pressing plate guide pin group is connected to the nitrogen cylinder, and the other end is connected to the top surface of the upper mold plate.

[0016] Furthermore, the upper mold assembly also includes an upper mold limiting bolt, which is arranged on the upper mold plate. The upper mold limiting bolt cooperates with the external upper mold base to limit the upward movement height of the upper mold assembly.

[0017] Furthermore, the multi-station mold in-mold cutting mechanism includes a clamp and a conveyor belt. The clamp is arranged on one side of the workbench discharge port, and one end of the conveyor belt is connected to the workbench and the other end is connected to the external stamping equipment.

[0018] The multi-station in-mold blanking mechanism of the present invention overcomes the limitation that raw material unwinding requires a dedicated machine tool and mold. This multi-station in-mold blanking mechanism integrates the blanking and unwinding processes, allowing parts to be produced simultaneously while the stamping process is in progress. This has the advantages of reducing raw material inventory and the need for additional storage space and related logistics costs for unwinding raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A cross-sectional view of the upper mold assembly and the lower mold assembly of the multi-station mold in-mold cutting mechanism of the present application;

[0020] Figure 2 This is a schematic diagram of the structure of the upper mold assembly and the lower mold assembly of this application;

[0021] Figure 3 This is a first-perspective view of the correction mechanism and feeding mechanism of the in-mold material cutting mechanism of the multi-station mold of the present application;

[0022] Figure 4 This is a right side view of the servo feeder of the in-mold material cutting mechanism of the multi-station mold of the present application;

[0023] Explanation of symbols: 1 upper die pressing plate guide column group, 2 upper die limit bolt, 3 upper die pressing plate, 4 upper die cutting knife, 5 lower die floating block, 6 lower die cutting knife, 7 die, 8 workbench, 9 roller, 10 roller, 11 cantilever shaft, 12 upper template. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts also fall within the scope of protection of the present invention.

[0025] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an kind" and / or "the" do not specifically refer to the singular and may also include the plural. "First" and "second" are not qualifiers. They are for explanation only to facilitate understanding of the technical solution of the utility model. The contents referred to by "first" and "second" are interchangeable. Generally speaking, the terms "including" and "comprising" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0026] Unless otherwise specified, the components, relative arrangements, functions, and numerical values described in these embodiments do not limit the scope of the present invention. At the same time, it is obvious that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods, and equipment known to ordinary technicians in the relevant fields will not be described in detail, but where appropriate, the techniques, methods, and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the step-by-step embodiments may have different sequences.

[0027] like Figure 1 、 2 3 shows a multi-station mold in-mold cutting mechanism, comprising a servo feeder, an upper mold assembly and a lower mold assembly; the servo feeder comprises a feeding mechanism and a correction mechanism, one end of the feeding mechanism is connected to the lower mold assembly, and the other end is connected to the correction mechanism.

[0028] like Figure 2 The multi-station mold in-mold cutting mechanism shown in the figure includes an upper mold assembly and a lower mold assembly. The upper mold assembly includes an upper mold cutting knife 4, an upper mold plate 12, and an upper mold pressing plate 3. The lower mold assembly includes a workbench 8 and a lower mold cutting knife 6. The lower mold cutting knife 6 is set in a groove of the workbench 8. When the upper mold plate 12 is pressed downward, the upper mold cutting knife 4 moves downward together with it. The upper mold cutting knife 4 cooperates with the lower mold cutting knife 6 to cut the plate to the prefabricated size.

[0029] like Figure 3As shown, the feeding mechanism comprises a set of rollers 10 that clamp the sheet material. A servo motor drives the feed rollers 10, clamping and feeding the material, achieving continuous and stable feeding. The feeding mechanism also features a material ring detection system. This detection signal feeds back to the servo feeder's control chip, which controls the spindle motor speed for precise feed length control. The coiled material delivered by the feeding mechanism enters the lower die float block 5, where it begins the next process.

[0030] like Figure 3 As shown, the straightening mechanism comprises two layers of parallel rollers 9, which clamp the web together. The distance between the rollers 9 is adjustable, and the rotational speed of the rollers 9 can also be controlled by a control chip. Using the parallel roller straightening method, the speed and spacing of the rollers are controlled by a control chip, continuously straightening the material and eliminating any unevenness or wavy shapes.

[0031] like Figure 4 As shown, the material rack mechanism is located at the inlet of the correction mechanism and comprises a rotatable cantilever shaft 11 and a supporting bracket. The rotatable cantilever shaft 11 is controlled by the control chip to achieve intermittent rotation. The coiled material is placed on the rotatable cantilever shaft 11 and is released into the correction mechanism through rotation, entering the next process step.

[0032] like Figure 1 and Figure 2 The multi-station in-mold cutting mechanism shown in the figure has a blanking die 7 mounted on a workbench 8. This die 7 is a blanking die and contains a high-speed blade. When the upper die pressing plate 3 is pressed, the blade moves at high speed along a preset trajectory, accurately cutting the desired blank. Furthermore, the guide system of the die 7 ensures stability and precision during the cutting process, avoiding waste of raw materials and poor forming.

[0033] like Figure 1 and Figure 2 A multi-station mold in-mold cutting mechanism is shown, in which the lower mold cutting knife 6 is located directly below the upper mold cutting knife 4. The cutting edges of the lower mold cutting knife 6 and the upper mold cutting knife 4 overlap during cutting. The use of overlapping cutting can reduce the deformation of the cut material and improve the cutting progress.

[0034] like Figure 1 and Figure 2 The multi-station in-mold cutting mechanism shown in the figure is also equipped with an adjustment device for adjusting the distance between the upper mold cutting blade 4 and the lower mold cutting blade 6 to accommodate plates of different thicknesses. The adjustment device is located on the upper mold cutting blade 4. When the adjustment device is set to work, the upper mold cutting blade 4 and the lower mold cutting blade 6 adopt a staggered cutting method.

[0035] like Figure 1 The illustrated embodiment of a multi-station mold in-mold cutting mechanism includes a lower mold assembly further comprising a lower mold float block 5. One end of the lower mold float block 5 is connected to the feed mechanism, and the other end is connected to the workbench 8. The height of the lower mold float block 5 is greater than or equal to the height of the workbench 8. When a coil enters the multi-station mold in-mold cutting mechanism, it first passes over the height of the lower mold float block 5. This ensures that after being flattened, the coil can float above the height of the lower mold cutting blade 6 and accurately advance forward.

[0036] like Figure 1 The illustrated embodiment of a multi-station mold in-mold material cutting mechanism includes an upper mold assembly comprising an upper mold press plate guide pin assembly 1 and a nitrogen cylinder. One end of the upper mold press plate guide pin assembly 1 is connected to the nitrogen cylinder, and the other end is connected to the upper mold plate 12. Furthermore, the upper mold assembly is provided with an upper mold limit bolt 2, which is disposed on the upper mold plate 12 and cooperates with the external upper mold base to limit the upward movement of the upper mold assembly. The purpose of providing the upper mold limit bolt 2 is to stabilize the upper mold assembly on the upper mold base while ensuring the safety of the upper mold press plate 3.

[0037] like Figure 1 、 2 3 shows a multi-station mold in-mold cutting mechanism, and then sent to the mold of the next process through the clamp inside the machine tool for processing, and then sent to the mold of the next process step for processing until the parts are produced.

[0038] The process begins with the coil being positioned on a cantilever shaft 11. Rotating this shaft 11 forces the coil into the straightening mechanism, where two layers of rollers 9, arranged in a fixed position, push the coil forward at a set speed. By adjusting the speed and spacing of the two rollers, the coil is continuously straightened, eliminating any unevenness or wavy shapes. The coil then enters the feeding mechanism, where it is clamped by rollers 10 and fed to the lower die float block 5. The feeding mechanism is equipped with a material detection ring, which feeds the ring detection signal back to the control chip to control the speed of the roller shaft motor, achieving precise feed length control. After passing through the feeding mechanism, the coil continues to feed forward. As it passes the lower die float block 5, the coil is raised, ensuring that after flattening, it floats above the height of the worktable 8 and accurately feeds forward. At this point, the upper die plate 3, driven by the upper die plate guide assembly 1, drives the upper die cutter 4 downward, where it cooperates with the lower die cutter 6 to cut the coil into individual workpieces. Simultaneously, the die 7, mounted on a workbench 8, and the upper die platen 3 cooperate to stamp the coiled material. The high-speed blades within the die 7 move at high speed along a pre-set trajectory, precisely cutting the desired shape. Once blanking is complete, the upper die platen 3 is lifted to the height defined by the upper die limit bolts 2. The waste material slides down the conveyor rollers to an external waste removal device. The clamps within the machine tool then transport the blank to the next processing step.

[0039] This multi-station in-mold blanking mechanism integrates the blanking process with the uncoiling and straightening equipment. Furthermore, it connects to subsequent processes, ensuring that stamping and blanking can proceed simultaneously. In traditional stamping production, coils are first finished using dedicated machine tools and dies, then stored in a warehouse and retrieved for subsequent production. This reduces the production errors caused by discontinuous processes, while also reducing raw material inventory and the additional storage space and associated logistics costs required for uncoiling raw materials.

[0040] The above is an illustration of the present invention and should not be considered as a limitation thereof. Although several exemplary embodiments of the present invention have been described, it will be readily understood by those skilled in the art that many modifications may be made to the exemplary embodiments without departing from the technical features of the present invention. Therefore, all such modifications are intended to be included within the scope of the present invention as defined in the claims. It should be understood that the above is an illustration of the present invention and should not be considered as being limited to the specific embodiments disclosed, and modifications to the disclosed embodiments and other embodiments are intended to be included within the scope of the appended claims. The present invention is defined by the claims and their equivalents.

Claims

1. A multi-station mold in-mold cutting mechanism, characterized in that: The multi-station mold in-mold material cutting mechanism includes a servo feeder, an upper mold assembly and a lower mold assembly; The servo feeder includes a feeding mechanism and a correction mechanism, one end of the feeding mechanism is connected to the lower mold assembly, and the other end is connected to the correction mechanism; The upper die assembly includes an upper die cutting knife, an upper die pressing plate and an upper die plate, the bottom surface of the upper die pressing plate is a working plane, the upper die cutting knife and the upper die pressing plate are arranged on the upper die plate, and the cutting direction of the upper die cutting knife is perpendicular to the working plane; The lower die assembly includes a workbench and a lower die cutting knife, the upper surface of the workbench is parallel to the working plane, the lower die cutting knife is arranged in a groove of the workbench, and the lower die cutting knife is located below the upper die cutting knife; A mold is provided on the workbench, and the mold is located below the work plane. A high-speed blade is provided in the mold, and the mold cooperates with the work plane to punch and complete blanking.

2. A multi-station mold in-mold cutting mechanism according to claim 1, characterized in that: The correction mechanism comprises two layers of rollers arranged in parallel.

3. A multi-station mold in-mold cutting mechanism according to claim 2, characterized in that: The feeding mechanism comprises a group of rollers which clamp the coiled material up and down.

4. A multi-station mold in-mold cutting mechanism according to claim 3, characterized in that: The servo feeder further comprises a material rack mechanism, which is arranged at the inlet end of the correction mechanism. The material rack mechanism comprises a rotatable suspension beam shaft and a matching bracket, and the suspension beam shaft is horizontally arranged on the matching bracket.

5. A multi-station mold in-mold cutting mechanism according to claim 4, characterized in that: The lower die cutting knife is located just below the upper die cutting knife, and the cutting edges of the lower die cutting knife and the upper die cutting knife overlap during cutting.

6. A multi-station mold in-mold cutting mechanism according to claim 5, characterized in that: The lower mold assembly also includes a lower mold floating block, one end of which is arranged at the discharge port of the feeding mechanism and the other end is connected to the workbench. The height of the lower mold floating block is greater than or equal to the height of the workbench.

7. A multi-station mold in-mold cutting mechanism according to claim 6, characterized in that: The upper mold assembly also includes an upper mold pressing plate guide column group and a nitrogen cylinder. One end of the upper mold pressing plate guide column group is connected to the nitrogen cylinder, and the other end is connected to the top surface of the upper mold plate.

8. A multi-station mold in-mold cutting mechanism according to claim 7, characterized in that: The upper die assembly further includes an upper die limiting bolt, which is arranged on the upper die plate. The upper die limiting bolt cooperates with the external upper die seat to limit the upward movement height of the upper die assembly.

9. A multi-station mold in-mold cutting mechanism according to claim 8, characterized in that: The multi-station mold in-mold cutting mechanism also includes a conveying device, which includes a clamp and a conveyor belt. The clamp is arranged on one side of the workbench discharge port, one end of the conveyor belt is connected to the workbench, and the other end is connected to the external stamping subsequent equipment.

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