A fast rolling die

Abstract

The present invention discloses a rapid rolling die. The key technical aspects of the die are as follows: a rapid rolling die comprising an upper die base and a lower die base, with a die-cutting mechanism for die-cutting a sheet material, a bending and rolling mechanism for bending and rolling the sheet material, and a discharge mechanism for removing the rolled ring from the die. The present invention achieves continuous processing by completing die-cutting, bending, and rolling in a single step using the die, effectively improving the efficiency of the rolling process.

Description

Technical Field

[0001] The present invention relates to the field of rolling processing, and in particular to a rapid rolling die. Background Art

[0002] The existing process for processing sheet metal into a ring without a large opening and with a seam gap less than 0.5 mm is generally: first drop the sheet and chamfer it, then pre-bend it, and then roll it into a circle. However, this processing method has low single-punch production efficiency and requires many people, resulting in low production efficiency.

[0003] There is also a solution that directly uses robots, where the materials are placed in sheets in advance, and then one person is responsible for loading the materials and turning them over to two single-punch production machines, or a transfer mold is used to produce a machine tool equipment for production, but the equipment cost is high and the improvement in production efficiency is limited.

[0004] Alternatively, dedicated coiling equipment has been developed that pre-loads the material. This typically involves a hydraulic press with a loading and unloading mechanism. This requires one person to manage the loading and unloading process during production. The biggest drawback of this equipment is the lengthy commissioning required for each production change. It is generally suitable for specialized production of high-volume products.

[0005] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Summary of the Invention

[0006] The purpose of the present invention is to provide a fast rolling die, which can complete die cutting, bending and rolling in one step through the die, realize continuous processing, and effectively improve the efficiency of rolling processing.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a rapid rolling die, comprising an upper die base and a lower die base, wherein a die-cutting mechanism for die-cutting a sheet, a bending and rolling mechanism for bending and rolling the sheet, and a discharging mechanism for demolding the rolled ring are arranged between the upper die base and the lower die base;

[0008] The bending and curling mechanism includes a punching block for punching the edge of the plate to form a rolled plate, a core rod located below the punching block and used to punch the rolled plate into a U shape, and a curling assembly located on the lower die base and used to mold the rolled plate into a ring shape.

[0009] The rolling assembly includes a lifting seat slidably connected to the lower die seat in the vertical direction, a rolling lower die arranged on the lower die seat and capable of passing through the lifting seat, a nitrogen spring arranged on the lower die seat and used to push the lifting seat, the core rod is arranged on the lifting seat, and the rolling lower die, the punching block and the core rod are combined to form a circular chamber.

[0010] The present invention is further configured as follows: the die-cutting mechanism includes two groups of symmetrically arranged first die-cutting components for die-cutting the sheet and forming notches in the sheet, and a second die-cutting component for die-cutting the sheet and connecting the two corresponding notches in the sheet to form a long groove. The second die-cutting component is located on the side of the first die-cutting component facing the bending and curling mechanism. The two groups of the first die-cutting components and the second die-cutting components are arranged in a herringbone shape. The structure of the second die-cutting component is consistent with that of the first die-cutting component. The first die-cutting component includes a die-cutting knife arranged on the upper die base, a die-cutting base arranged on the lower die base and paired with the die-cutting knife, and the die-cutting base is provided with a die-cutting hole for inserting the die-cutting knife.

[0011] The present invention is further configured as follows: the lower die seat is provided with two punching knife seats corresponding to the side walls of the punching block and used to cut the rolled sheet material; the punching block is provided with an arc-shaped groove corresponding to the core rod.

[0012] The present invention is further configured as follows: the discharging mechanism includes a sliding block horizontally slidingly connected to the lifting seat, a pushing block arranged on the upper die seat and driving the sliding block to move toward the die-cutting mechanism, and a stripping block arranged on the lifting seat and for the core rod to pass through; the core rod is fixed to the sliding block; the lifting seat is provided with a reset structure that drives the sliding block to move away from the die-cutting mechanism; when the punching block cuts to form a rolled sheet, the pushing block pushes the sliding block and makes the core rod located directly below the rolled sheet; after the reset structure drives the sliding block and the core rod to move away from the die-cutting mechanism, the stripping block abuts against the rolled product and makes the rolled product separate from the core rod.

[0013] The present invention is further configured as follows: the sliding block is rotatably connected to a guide wheel, the side wall of the push block facing the die-cutting mechanism can abut against the guide wheel, and the side wall of the push block facing the die-cutting mechanism is provided with an inclined surface. After the push block moves downward, the inclined surface abuts against the guide wheel and drives the guide wheel and the sliding block to move toward the die-cutting structure. When the push block moves downward and the side wall of the push block abuts against the guide wheel, the sliding block is relatively stationary in the horizontal direction.

[0014] The present invention is further configured as follows: the lower die base is provided with a material guide trough for the rolled product to move out of the lower die base.

[0015] The present invention is further configured as follows: a tail material recovery component for collecting tail materials formed after the punching block punches the plate is provided between the lower die base and the upper die base; the tail material recovery component includes a tail material guide tube provided on the lower die base for the tail materials to pass through, a shearing seat fixed to the lower die base for shearing the tail materials, a shearing knife provided on the upper die base and used to shear the tail materials with the shearing seat; and the tail material guide tube is fixed to the shearing seat.

[0016] In summary, the present invention has the following beneficial effects:

[0017] The die-cutting mechanism is used to die-cut the sheet material to form long grooves with intervals, which makes it convenient for the bending and curling mechanism to punch out rolled sheet materials from the sheet material. After the rolled sheet material is bent and rolled by the bending and curling mechanism, the material is removed by the discharging mechanism, achieving continuous and efficient one-time forming and rolling processing.

[0018] When die-cutting the sheet, after the upper die holder moves down, the die-cutting knife of the first die-cutting component cuts into the die-cutting hole, thereby realizing die-cutting to form two notches, and the two notches are arranged in a straight line. After that, when the sheet is a certain distance away and the two notches are located at the position of the second die-cutting component, the upper die holder moves down, and the die-cutting knife of the second die-cutting component realizes die-cutting, so that the two notches are connected and form a long strip-shaped groove. The two ends of the long groove are close to the edges of both sides of the sheet, and it is convenient to cut it into a rolled sheet in the next step.

[0019] When the upper die seat moves downward, it drives the punching block to move downward. The punching block and the punching knife seat cut the plate, thereby punching out a rolled sheet. In addition, two long strips of residual material are formed after punching. After punching, the rolled sheet is located between the arc-shaped groove of the punching block and the core rod, and is squeezed by the punching block, so that the rolled sheet is pressed into a U-shape, and then further formed into a circular ring shape through the rolling assembly.

[0020] When the punching block moves down and presses the rolled sheet into a U shape with the core rod, the lower end of the rolled sheet is close to the guide slope, the upper die seat continues to move down, the punching block pushes the core rod and the lifting seat down, and the nitrogen spring contracts. The lower end of the rolled sheet hits the guide slope and bends along the guide slope. It is finally formed into a ring shape in the ring cavity surrounded by the rolling lower die, the punching block and the core rod, thereby completing the processing of the ring-shaped product and achieving synchronous completion of the die cutting and rolling of the sheet, realizing continuous and efficient rolling processing, and effectively improving processing efficiency.

[0021] During the rolling process, the upper die seat moves downward, the inclined surface contacts the guide wheel, and the guide wheel pushes the sliding block and the core rod toward the die-cutting mechanism until the core rod is directly below the punching block. The punching block punches the rolled sheet material from the sheet material that has passed the die-cutting structure and makes the rolled sheet material contact the upper side wall of the core rod. Then the punching block continues to move downward, so that the rolled sheet material is wound around the core rod and forms a U shape. When the punching block continues to move downward, the punching block pushes the core rod and moves the core rod and the lifting seat down a certain distance, that is, the nitrogen spring contracts, and the rolled sheet material is rolled. The U-shaped lower end contacts the guide bevel and bends along the guide bevel, and the rolled sheet is made into a ring shape and wound around the core rod through the rolling lower die; when the upper die seat moves up, the lifting seat moves up and resets, and when the inclined surface contacts the guide wheel again, the sliding block is pushed by the reset structure to drive the core rod and the sliding block to move away from the direction of the die-cutting mechanism and reset. After the core rod resets and moves a certain distance, the rolled product contacts the stripping block and is restricted from moving further. Finally, the rolled product detaches from the stripping block and falls off, achieving the stripping effect.

[0022] After the sheet is punched by the punching block, long strips of tailings are formed on both sides of the sheet, and the tailings continue to move synchronously with the sheet. When the tailings pass through the tailing guide tube and are sheared by the shear knife and the shear seat, they are collected, and the guiding effect of the tailing guide tube makes it easy to collect the tailings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the present invention Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention Figure 2 ;

[0025] Figure 3 This is a cross-sectional view of the present invention Figure 1 ;

[0026] Figure 4 yes Figure 3 Cross-sectional view of AA;

[0027] Figure 5 yes Figure 3 Cross-sectional view of the middle BB;

[0028] Figure 6 This is a cross-sectional view of the present invention Figure 2 ;

[0029] Figure 7 This is the shape of the plate after die cutting and punching in the present invention.

[0030] The corresponding parts represented by the numbers in the figure are as follows: 1. Upper die base; 2. Lower die base; 3. Die-cutting knife; 4. Die-cutting seat; 5. Die-cutting hole; 6. Punching block; 7. Core rod; 8. Punching knife seat; 9. Arc groove; 10. Lifting seat; 11. Rolling lower die; 12. Nitrogen spring; 13. Guide slope; 14. Slide block; 15. Push block; 16. Stripping block; 17. Reset structure; 18. Guide wheel; 19. Inclined surface; 20. Material guide trough; 21. Tail material guide tube; 22. Shearing seat; 23. Shearing knife. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to diagrams and specific embodiments.

[0032] like Figures 1 to 7As shown, the present invention proposes a rapid rolling die, comprising an upper die base 1 and a lower die base 2. A die-cutting mechanism for die-cutting a sheet material, a bending and rolling mechanism for bending and rolling the sheet material, and a discharge mechanism for demolding the rolled ring are disposed between the upper die base 1 and the lower die base 2. The die-cutting mechanism forms spaced grooves on the sheet material, facilitating the bending and rolling mechanism to punch out rolled sheet material from the sheet material. After the rolled sheet material is bent and rolled by the bending and rolling mechanism, it is removed by the discharge mechanism, achieving continuous and efficient one-step forming and rolling processing.

[0033] The die-cutting mechanism includes two groups of symmetrically arranged first die-cutting components for die-cutting the sheet and forming notches in the sheet, and a second die-cutting component for die-cutting the sheet and connecting the two corresponding notches in the sheet to form a long groove. The second die-cutting component is located on the side of the first die-cutting component facing the bending and curling mechanism. The two groups of the first die-cutting components and the second die-cutting components are arranged in a herringbone shape. The structure of the second die-cutting component is consistent with that of the first die-cutting component. The first die-cutting component includes a die-cutting knife 3 arranged on the upper die base 1, and a die-cutting base 4 arranged on the lower die base 2 and paired with the die-cutting knife 3. The die-cutting base 4 is provided with a die-cutting hole 5 for inserting the die-cutting knife 3. When die-cutting the sheet, after the upper die base 1 moves down, the die-cutting knife 3 of the first die-cutting component cuts into the die-cutting hole 5, thereby realizing die-cutting to form two notches, and the two notches are arranged in a straight line. After that, when the sheet is a certain distance away and the two notches are located at the position of the second die-cutting component, the upper die base 1 moves down, and the die-cutting knife 3 of the second die-cutting component realizes die-cutting, so that the two notches are connected and form a long strip-shaped groove. The two ends of the long groove are close to the edges of both sides of the sheet, and it is convenient to cut it into a rolled sheet in the next step.

[0034] The bending and curling mechanism includes a punching block 6 for punching the edge of the sheet and forming a rolled sheet, a core rod 7 located below the punching block 6 and punching the rolled sheet into a U shape, and a rolling component arranged on the lower die base 2 and molded into a ring shape for the rolled sheet. The lower die base 2 is provided with two punching knife seats 8 corresponding to the side walls of the punching block 6 and cutting the rolled sheet. The punching block 6 is provided with an arc-shaped groove 9 corresponding to the core rod 7, and the lower end of the punching block 6 is located on both sides of the arc-shaped groove 9 and is inclined and in an eight-shaped shape. When the upper die base 1 moves downward, it drives the punching block 6 to move downward, and the punching block 6 and the punching knife base 8 cut the plate, thereby punching to form a rolled plate. In addition, two long strips of residual material are formed after punching. After punching, the rolled plate is located between the arc groove 9 of the punching block 6 and the core rod 7, and is squeezed by the punching block 6, so that the rolled plate is pressed into a U-shape, and then further formed into a circular ring shape through the rolling assembly.

[0035] The rolling assembly includes a lifting seat 10 that is slidably connected to the lower die base 2 in the vertical direction, a rolling lower die 11 that is arranged on the lower die base 2 and can be passed through the lifting seat 10, and a nitrogen spring 12 that is arranged on the lower die base 2 and is used to push the lifting seat 10. The rolling lower die 11 is provided with a guiding inclined surface 13 that brings the two sides of the rolled sheet closer to each other. The core rod 7 is arranged on the lifting seat 10. The rolling lower die 11, the punching block 6 and the core rod 7 are combined to form a circular chamber. When the punching block 6 moves downward and presses the rolled sheet into a U shape with the core rod 7, the lower end of the rolled sheet is close to the guide slope 13, the upper die seat 1 continues to move downward, the punching block 6 pushes the core rod 7 and the lifting seat 10 to move downward, and the nitrogen spring 12 contracts. The lower end of the rolled sheet hits the guide slope 13, bends along the guide slope 13, and is finally formed into a circular shape in the circular cavity surrounded by the rolling lower die 11, the punching block 6 and the core rod 7, thereby completing the processing of the circular product and achieving synchronous completion of the die cutting and rolling of the sheet, realizing continuous and efficient rolling processing, and effectively improving processing efficiency.

[0036] In this embodiment, the discharging mechanism includes a sliding block 14 horizontally slidably connected to the lifting seat 10, a push block 15 arranged on the upper die seat 1 and driving the sliding block 14 to move toward the die-cutting mechanism, and a stripping block 16 arranged on the lifting seat 10 for the core rod 7 to pass through. The core rod 7 is fixed to the sliding block 14, and the lifting seat 10 is provided with a reset structure 17 for driving the sliding block 14 to move away from the die-cutting mechanism. The reset structure 17 can be a tension spring that pulls the sliding block 14 to move away from the die-cutting mechanism. In order to facilitate the control of the sliding of the sliding block 14, the sliding block 14 is rotatably connected to a guide wheel 18, and the rotation axis of the guide wheel 18 is horizontally set, and the guide wheel 18 can allow the push block 15 to abut against the side wall of the die-cutting mechanism, and the push block 15 is provided with an inclined surface 19 toward the side wall of the die-cutting mechanism. After the push block 15 moves downward, the inclined surface 19 abuts against the guide wheel 18 and drives the guide wheel 18 and the sliding block 14 to move toward the die-cutting structure. When the push block 15 moves downward and the side wall abuts against the guide wheel 18, the sliding block 14 is relatively stationary in the horizontal direction. During the rolling process, the upper die base 1 moves downward, the inclined surface 19 contacts the guide wheel 18, and the guide wheel 18 pushes the sliding block 14 and the core rod 7 toward the die-cutting mechanism, so that the core rod 7 is located directly below the punching block 6. The punching block 6 punches the rolled sheet material from the sheet material that has passed the die-cutting structure and makes the rolled sheet material contact the upper side wall of the core rod 7. Then the punching block 6 continues to move downward, so that the rolled sheet material is wound around the core rod 7 and forms a U shape. When the punching block 6 continues to move downward, the punching block 6 pushes the core rod 7 and makes the core rod 7 and the lifting seat 10 move down a certain distance, that is, the nitrogen spring 12 contracts, and the rolled sheet material is rolled. The U-shaped lower end contacts the guide bevel 13 and bends along the guide bevel, and the rolled sheet material is annular and wound around the core rod 7 through the rolling lower die 11; when the upper die seat 1 moves up, the lifting seat 10 moves up and resets, and when the inclined surface 19 contacts the guide wheel 18 again, the reset structure 17 pushes the sliding block 14 to drive the core rod 7 and the sliding block 14 to move away from the die-cutting mechanism and reset. After the core rod 7 resets and moves a certain distance, the rolled product contacts the stripping block 16 and is restricted from moving further. Finally, the rolled product detaches from the stripping block 16 and falls, achieving the stripping effect. In addition, a guide trough 20 is provided on the lifting seat 10 for the rolled product to move out of the lower die seat 2, and the rolled product is discharged through the guide trough 20.

[0037] A tailings recovery assembly is provided between the lower die base 2 and the upper die base 1 for collecting tailings formed after the punching block 6 punches the sheet material. The tailings recovery assembly includes a tailings guide tube 21 provided on the lower die base 2 for the tailings to pass through, a shearing seat 22 fixed to the lower die base 2 for shearing the tailings, and a shearing knife 23 provided on the upper die base 1 and for shearing the tailings with the shearing seat 22. The tailings guide tube 21 is fixed to the shearing seat 22. After the sheet material is punched by the punching block 6, long strips of tailings are formed on both sides of the sheet material, and the tailings continue to move synchronously with the sheet material. When the tailings pass through the tailings guide tube 21 and are sheared by the shearing knife 23 and the shearing seat 22, they are collected. The guiding effect of the tailings guide tube 21 facilitates the collection of the tailings.

[0038] In this document, the directions or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", and "horizontal" are based on the directions or positional relationships shown in the accompanying drawings and are only for the clarity of the technical solution and the convenience of description, and therefore should not be understood as limiting the present invention.

[0039] As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0040] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid rolling die, comprising an upper die base (1) and a lower die base (2), characterized in that: A die-cutting mechanism for die-cutting the plate, a bending and rolling mechanism for bending and rolling the plate, and a discharging mechanism for demoulding and discharging the rolled ring are provided between the upper die base (1) and the lower die base (2); The bending and rolling mechanism comprises a punching block (6) for punching the edge of a plate and forming a rolled plate, a core rod (7) located below the punching block (6) and for punching the rolled plate into a U shape, and a rolling assembly arranged on the lower die base (2) and for molding the rolled plate into a ring shape. The rolling assembly comprises a lifting seat (10) slidably connected to the lower die seat (2) in a vertical direction, a rolling lower die (11) arranged on the lower die seat (2) and capable of being inserted into the lifting seat (10), and a nitrogen spring (12) arranged on the lower die seat (2) and used for pushing the lifting seat (10). The core rod (7) is arranged on the lifting seat (10). The rolling lower die (11), the punching block (6) and the core rod (7) are combined to form a circular chamber. The die-cutting mechanism comprises two groups of symmetrically arranged first die-cutting components for die-cutting plates and forming notches on the plates, and a second die-cutting component for die-cutting plates and connecting two corresponding notches on the plates to form long grooves. The second die-cutting component is located on the side of the first die-cutting component facing the bending and curling mechanism. The two groups of the first die-cutting components and the second die-cutting components are arranged in a herringbone shape. The structure of the second die-cutting component is consistent with that of the first die-cutting component. The first die-cutting component comprises a die-cutting knife (3) arranged on the upper die base (1), and a die-cutting seat (4) arranged on the lower die base (2) and matched with the die-cutting knife (3). The die-cutting seat (4) is provided with a die-cutting hole (5) for inserting the die-cutting knife (3).

2. The rapid rolling die according to claim 1, characterized in that: The lower die base (2) is provided with two punching knife seats (8) corresponding to the side walls of the punching block (6) and used to cut the rolled sheet material. The punching block (6) is provided with an arc-shaped groove (9) corresponding to the core rod (7).

3. The rapid rolling die according to claim 1, characterized in that: The discharging mechanism includes a sliding block (14) horizontally slidably connected to the lifting seat (10), a pushing block (15) arranged on the upper die seat (1) and driving the sliding block (14) to move toward the die-cutting mechanism, and a stripping block (16) arranged on the lifting seat (10) and for the core rod (7) to pass through. The core rod (7) is fixed to the sliding block (14). The lifting seat (10) is provided with a reset structure (17) for driving the sliding block (14) to move away from the die-cutting mechanism. When the punching block (6) cuts to form a rolled sheet, the pushing block (15) pushes the sliding block (14) and makes the core rod (7) located directly below the rolled sheet. After the reset structure (17) drives the sliding block (14) and the core rod (7) to move away from the die-cutting mechanism, the stripping block (16) abuts against the rolled product and makes the rolled product separate from the core rod (7).

4. The rapid rolling die according to claim 3, characterized in that: The sliding block (14) is rotatably connected to a guide wheel (18), and the push block (15) can abut against the guide wheel (18) toward the side wall of the die-cutting mechanism, and the push block (15) is provided with an inclined surface (19) toward the side wall of the die-cutting mechanism. After the push block (15) moves downward, the inclined surface (19) abuts against the guide wheel (18) and drives the guide wheel (18) and the sliding block (14) to move toward the die-cutting structure. When the push block (15) moves downward and the side wall of the push block (15) abuts against the guide wheel (18), the sliding block (14) is relatively stationary in the horizontal direction.

5. The rapid rolling die according to claim 3, characterized in that: The lifting seat (10) is provided with a material guide trough (20) for the rolled product to be moved out of the lower die seat (2).

6. The rapid rolling die according to claim 1, characterized in that: A tail material recovery assembly for collecting tail materials formed after the punching block (6) punches the plate is provided between the lower die base (2) and the upper die base (1). The tail material recovery assembly comprises a tail material guide tube (21) provided on the lower die base (2) and for the tail materials to pass through, a shearing seat (22) fixed to the lower die base (2) for shearing the tail materials, and a shearing knife (23) provided on the upper die base (1) and used to shear the tail materials together with the shearing seat (22). The tail material guide tube (21) is fixed to the shearing seat (22).

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