A ring material blanking tool capable of automatically blanking and a working method thereof

Abstract

A ring-shaped material blanking tool capable of automatic blanking and a working method thereof belong to the technical field of rubber parts production. A material return mechanism, a punching knife assembly and a material pressing mechanism are provided on the mounting seat. The punching knife assembly and the material pressing mechanism are arranged at the lower end of the mounting seat, and the material pressing mechanism is arranged inside the punching knife assembly. The material return mechanism and the punching knife assembly are arranged in coordination. The method is as follows: the punching knife moves downward, the pressing sheet and the material return ring contact the material to be processed, pushing the material return mechanism upward; the punching knife assembly performs material blanking; the material to be processed is blanked into ring material, inner circle material and outer circle material; the pressing sheet keeps pressing the inner circle material; the punching knife drives the ring material to move upward together until it contacts the screw, and the material return mechanism ejects the ring material. The present invention realizes automatic material return after the ring material is blanked, which can ensure the safety of the blanking material as well as the efficiency and quality of the blanking material. At the same time, the blanking size of the product can be adjusted by simply replacing the outer punching knife, material return ring, inner punching knife and pressing sheet of different specifications, which is convenient to use.

Description

Technical Field

[0001] The invention relates to an annular material blanking tool capable of automatically blanking and a working method thereof, belonging to the technical field of rubber piece production. Background Art

[0002] Currently, a punching machine used for punching rubber materials requires a punching tool.

[0003] However, the existing punching tools cannot achieve automatic blanking when punching ring materials, and the effect is not ideal. Moreover, when replacing a tool of a different size, the entire tool must be replaced, which makes the manufacturing cost high. Summary of the Invention

[0004] In order to solve the problems existing in the background technology, the present invention provides a ring material blanking tool capable of automatic blanking and a working method thereof.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a ring-shaped material blanking tool that can automatically blank, including a mounting seat, a material return mechanism, a punching knife assembly and a material pressing mechanism; the mounting seat is fixed on the blanking equipment, and the mounting seat is provided with a material return mechanism, a punching knife assembly and a material pressing mechanism, the punching knife assembly and the material pressing mechanism are both arranged at the lower end of the mounting seat, and the material pressing mechanism is arranged inside the punching knife assembly, and the material return mechanism is arranged in coordination with the punching knife assembly.

[0006] The present invention provides a method for automatically blanking annular material blanking tool, the method comprising the following steps:

[0007] S1: Place the sheet to be processed at the center of the lower plate of the blanking equipment;

[0008] S2: The blanking equipment controls its upper plate to drive the blanking tool to move downward as a whole;

[0009] S3: The pressing sheet of the pressing mechanism contacts the sheet to be processed, and the pressing sheet is forced to push the inner push rod upward, causing the compression spring to contract;

[0010] S4: The stripping ring contacts the sheet to be processed, pushing the stripping rod, stripping push rod and push rod bracket upward;

[0011] S5: The punch assembly contacts the sheet to be processed and then punches the sheet;

[0012] S6: After the blanking is completed, the blanking tool stops moving downward as a whole, and the blank to be processed is blanked into three parts: a ring blank, an inner circle blank, and an outer blank;

[0013] S7: The blanking equipment controls its upper plate to drive the blanking tool to move upward as a whole;

[0014] S8: The pressing piece keeps pressing the inner circular piece under the action of the compression spring;

[0015] S9: The ring material is squeezed in the annular area between the outer punch and the inner punch and moves upward with the punching tool;

[0016] S10: The material stripping ring, material stripping rod, material stripping push rod and push rod bracket move upward together under the support force of the ring material;

[0017] S11: After the punching tool moves up to the designated position, the material receiving mechanism of the punching equipment rotates to the position directly below the punching tool assembly;

[0018] S12: The punching tool continues to move upward until the push rod bracket contacts the screw at the center position above the upper plate of the punching equipment, and the push rod bracket stops moving upward. Then, as the mounting seat continues to move upward, the push rod bracket ejects the punched ring material through the action of the ejector push rod, ejector rod and ejector ring.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention can realize automatic material return after the ring material is punched, and is flexible to use, which can ensure the safety of the punching material, as well as the efficiency and quality of the punching material. At the same time, the punching size of the product can be adjusted by simply replacing the outer punch, material return ring, inner punch and pressing plate of different specifications, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 yes Figure 1 sectional view of

[0023] Figure 3 yes Figure 2 Enlarged view of point A. DETAILED DESCRIPTION

[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] A ring material blanking tool that can automatically blank, including a mounting seat 4, a material return mechanism, a punching knife assembly and a material pressing mechanism; the mounting seat 4 is fixed to the blanking equipment by corresponding screws, and the mounting seat 4 is provided with a material return mechanism, a punching knife assembly and a material pressing mechanism, the punching knife assembly and the material pressing mechanism are both arranged at the lower end of the mounting seat 4, and the material pressing mechanism is arranged inside the punching knife assembly, and the material return mechanism is arranged in coordination with the punching knife assembly.

[0026] The pressing mechanism includes a pressing ring 5, a pressing plate 12, an inner push rod 13 and a pressing spring 15; a pressing ring groove is provided in the middle of the lower surface of the mounting seat 4, and a mounting groove is provided on the top surface of the pressing ring groove. The groove diameter of the mounting groove is smaller than the groove diameter of the pressing ring groove. A pressing spring 15 and an inner push rod 13 are placed in the mounting groove. One end of the pressing spring 15 rests on the groove top surface of the mounting groove, and the other end of the pressing spring 15 rests on the upper end of the inner push rod 13. The lower end of the inner push rod 13 extends to the outside of the mounting seat 4 and is screwed and fixed to the middle part of the pressing plate 12; a pressing ring 5 is slidably sleeved on the outer side of the inner push rod 13. In order to prevent the inner push rod 13 from falling out of the pressing ring 5, a limiting ring is provided on the upper end of the inner push rod 13. The diameter of the limiting ring is greater than the inner diameter of the pressing ring 5. The pressing ring 5 is matched and placed in the pressing ring groove and fixed to the mounting seat 4 by screws 14.

[0027] The punching blade assembly includes an outer punching blade 7 and an inner punching blade 10; the lower surface of the mounting seat 4 is provided with an annular placement groove along its circumference, and the upper end of the outer wall of the outer punching blade 7 is provided with an annular mounting protrusion along its circumference, and the mounting protrusion is arranged in the placement groove and fixedly connected to the mounting seat 4 by screw three 6. The upper end of the inner wall of the outer punching blade 7 passes through its upper end surface and is provided with an annular limiting groove along its circumference, and the upper end of the outer wall of the inner punching blade 10 is provided with an annular mounting protrusion along its circumference, and the mounting protrusion is matched and placed in the limiting groove one. The upper end face of the inner punching blade 10 is tightly fitted with the lower surface of the mounting seat 4, and an annular area is left between the outer wall of the inner punching blade 10 and the inner wall of the outer punching blade 7.

[0028] The material return mechanism includes a push rod bracket 2, a material return push rod 3, a material return rod 8 and a material return ring 11; two key holes are provided in the middle of the outer wall of the outer punch 7 through its thickness direction, and the two key holes are located on the same diameter of the outer punch 7; the left and right side walls of the mounting seat 4 are integrally provided with semicircular mounting protrusions three, each of the mounting protrusions three is respectively fixedly connected to the corresponding semicircular pressure plate 16 by a corresponding screw 17 and closed to form a cylindrical through hole, and a material return push rod 3 is slidably inserted in each of the cylindrical through holes, and each of the pressure plates 16 is fixed to the punch by a corresponding screw. At the exact center position below the upper plate of the cutting equipment; a long through hole is provided at the upper end of the mounting seat 4 in the left and right directions, and a push rod bracket 2 is placed in the long through hole, and the left and right ends of the push rod bracket 2 are respectively fixedly connected to the upper end of the corresponding material return push rod 3 by corresponding screws 2, and the lower end of each of the material return push rods 3 is respectively fixedly connected to the corresponding material return rod 8 vertically limited, specifically: the lower end of the outer wall of each material return push rod 3 is provided with a vertically connected rod insertion hole and a threaded hole, the rod insertion hole passes through the radial arrangement of the material return push rod 3, the material return rod 8 is inserted in the rod insertion hole, and a tightening screw 9 is screwed into the threaded hole. The inner end of each of the return rods 8 is inserted into the corresponding keyhole and is fitted with the outer wall of the inner punch 10; the lower end of the inner wall of the outer punch 7 is provided with an annular limiting groove 2 along its circumference, and the return ring 11 is arranged between the outer punch 7 and the inner punch 10, and the upper end of the outer wall of the return ring 11 is provided with an annular mounting protrusion 4 along its circumference. The mounting protrusion 4 is placed in the limiting groove 2, and the upper end face of the return ring 11 is matched with the outer wall of the inner end of the two return rods 8.

[0029] The present invention provides a method for automatically blanking annular material blanking tool, the method comprising the following steps:

[0030] S1: Before using the present invention for blanking, install the outer punch 7, the inner punch 10 and the corresponding stripper ring 11 and the pressing sheet 12 in the corresponding positions, and place the sheet to be processed at the center of the lower plate of the blanking equipment;

[0031] S2: When punching, the blanking equipment controls its upper plate to drive the blanking tool to move downward as a whole;

[0032] S3: The pressing sheet 12 of the pressing mechanism contacts the sheet to be processed. The pressing sheet 12 is forced to push the inner push rod 13 upward, causing the compression spring 15 to contract. The reaction force of the compression spring 15 ensures that the sheet will not shift during the subsequent blanking process.

[0033] S4: The material stripping ring 11 contacts the material to be processed, pushing the material stripping rod 8, the material stripping push rod 3 and the push rod bracket 2 upward;

[0034] S5: The punch assembly contacts the sheet to be processed and then punches the sheet;

[0035] S6: After the punching is completed (the final position of the punching tool is controlled by the equipment, and the position of the built-in sensor can be freely adjusted according to the thickness of the material and the height of the lower plate of the equipment. It needs to be readjusted every time the lower plate or punching tool is replaced), the punching tool stops moving downward as a whole, and the sheet to be processed is punched into three parts: ring sheet, inner circle sheet and outer sheet;

[0036] S7: The blanking equipment controls its upper plate to drive the blanking tool to move upward as a whole;

[0037] S8: The pressing plate 12 keeps the inner circular sheet pressed by the compression spring 15, so that it remains in its original position; the outer sheet is intercepted by the blocking mechanism on the lower plate to ensure that it is not brought up;

[0038] S9: The ring material is squeezed in the annular area between the outer punch 7 and the inner punch 10 and moves upward with the punching tool;

[0039] S10: The material stripping ring 11, the material stripping rod 8, the material stripping push rod 3 and the push rod support 2 move upward together under the support force of the ring material;

[0040] S11: After the punching tool moves up to the designated position, the material receiving mechanism of the punching equipment rotates to the position directly below the punching tool assembly;

[0041] S12: The punching tool continues to move upward until the push rod bracket 2 contacts the screw at the center position above the upper plate of the punching device. The push rod bracket 2 stops moving upward. Then, as the mounting base 4 continues to move upward, the push rod bracket 2 ejects the punched ring material through the action of the ejection push rod 3, the ejection rod 8, and the ejection ring 11. The ring material falls into the box of the material receiving mechanism, and then the material receiving mechanism returns to its original position and places the ring material into the material box.

[0042] The sizes of the outer punch 7, the stripping ring 11, the inner punch 10 and the pressing sheet 12 can be changed. After the change, they can be used to punch out ring materials of different sizes. The size range of the outer punch 7 is between 12-40mm, the size range of the inner punch 10 is between 10-38mm, and the thickness of the sheet to be punched is between 0.5-5mm.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0044] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A ring material blanking tool capable of automatic blanking, characterized by: The invention comprises a mounting seat (4), a material return mechanism, a punching knife assembly and a material pressing mechanism; the mounting seat (4) is fixed on the punching device, and the mounting seat (4) is provided with a material return mechanism, a punching knife assembly and a material pressing mechanism, the punching knife assembly and the material pressing mechanism are both arranged at the lower end of the mounting seat (4), and the material pressing mechanism is arranged inside the punching knife assembly, and the material return mechanism is arranged in coordination with the punching knife assembly; the punching knife assembly comprises an outer punching knife (7) and an inner punching knife (10); the lower surface of the mounting seat (4) is provided with an annular placement groove, the upper end of the outer wall of the outer punching knife (7) is provided with an annular mounting protrusion 1, and the mounting protrusion One is arranged in the placement groove and fixedly connected to the mounting seat (4); the upper end of the inner wall of the outer punching knife (7) is provided with an annular limiting groove one, the upper end of the outer wall of the inner punching knife (10) is provided with an annular mounting protrusion two, the mounting protrusion two is matched and placed in the limiting groove one, the upper end surface of the inner punching knife (10) is tightly fitted with the lower surface of the mounting seat (4), and an annular area is left between the outer wall of the inner punching knife (10) and the inner wall of the outer punching knife (7); the material return mechanism includes a push rod bracket (2), a material return push rod (3), a material return rod (8) and a material return ring (11); the middle part of the outer wall of the outer punching knife (7) is provided with Two keyholes, the two keyholes are located on the same diameter of the outer punch (7); the left and right side walls of the mounting seat (4) are provided with three semi-circular mounting protrusions, each of the three mounting protrusions is fixedly connected to the corresponding semi-circular pressure plate (16) and is closed to form a cylindrical through hole, each of the cylindrical through holes is slidably inserted with a material return push rod (3), and each of the pressure plates (16) is fixed on the punching equipment; the upper end of the mounting seat (4) is provided with a long through hole, and a push rod bracket (2) is placed in the long through hole, and the left and right ends of the push rod bracket (2) are respectively connected to the upper end of the corresponding material return push rod (3). The lower end of each material return push rod (3) is respectively fixedly connected with the corresponding material return rod (8) in a vertical limit position, and the inner end of each material return rod (8) is respectively inserted into the corresponding key hole and is arranged in contact with the outer wall of the inner punch (10); the lower end of the inner wall of the outer punch (7) is provided with an annular limiting groove 2, the material return ring (11) is arranged between the outer punch (7) and the inner punch (10), and the upper end of the outer wall of the material return ring (11) is provided with an annular mounting protrusion 4, the mounting protrusion 4 is placed in the limiting groove 2, and the upper end face of the material return ring (11) is arranged in contact with the outer wall of the inner end of the two material return rods (8).

2. The ring-shaped blanking tool capable of automatic blanking according to claim 1, characterized in that: The pressing mechanism includes a pressing ring (5), a pressing plate (12), an inner push rod (13) and a pressing spring (15); a pressing ring groove is provided in the middle of the lower surface of the mounting seat (4), and a mounting groove is provided on the top surface of the pressing ring groove. The groove diameter of the mounting groove is smaller than the groove diameter of the pressing ring groove. A pressing spring (15) and an inner push rod (13) are placed in the mounting groove. One end of the pressing spring (15) abuts on the groove top surface of the mounting groove, and the other end of the pressing spring (15) abuts on the upper end of the inner push rod (13). The lower end of the inner push rod (13) extends to the outside of the mounting seat (4) and is fixed to the middle of the pressing plate (12); a pressing ring (5) is slidingly sleeved on the outer side of the inner push rod (13), and the pressing ring (5) is matched and placed in the pressing ring groove and fixedly connected to the mounting seat (4).

3. A method for operating the ring-shaped blanking tool capable of automatic blanking according to any one of claims 1 to 2, characterized in that: The method comprises the following steps: S1: Place the sheet to be processed at the center of the lower plate of the blanking equipment; S2: The blanking equipment controls its upper plate to drive the blanking tool to move downward as a whole; S3: The pressing sheet (12) of the pressing mechanism contacts the material to be processed, and the pressing sheet (12) is forced to push the inner push rod (13) upward, causing the compression spring (15) to contract; S4: The material removal ring (11) contacts the material to be processed, pushing the material removal rod (8), the material removal push rod (3) and the push rod bracket (2) upward; S5: The punch assembly contacts the sheet to be processed and then punches the sheet; S6: After the blanking is completed, the blanking tool stops moving downward as a whole, and the blank to be processed is blanked into three parts: a ring blank, an inner circle blank, and an outer blank; S7: The blanking equipment controls its upper plate to drive the blanking tool to move upward as a whole; S8: The pressing piece (12) keeps pressing the inner circular piece under the action of the compression spring (15); S9: The ring material is squeezed into the annular area between the outer punch (7) and the inner punch (10) and moves upward along with the punching tool; S10: The material return ring (11), the material return rod (8), the material return push rod (3) and the push rod bracket (2) move upward together under the support force of the ring material; S11: After the punching tool moves up to the designated position, the material receiving mechanism of the punching equipment rotates to the position directly below the punching tool assembly; S12: The punching tool continues to move upward until the push rod bracket (2) contacts the screw at the center position above the upper plate of the punching device, and the push rod bracket (2) stops moving upward. Then, as the mounting seat (4) continues to move upward, the push rod bracket (2) ejects the punched ring material through the action of the ejector push rod (3), the ejector rod (8) and the ejector ring (11).

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