Progressive die and method for precisely forming part on strip
In the production process of tape forming parts, the continuous mold of mold and blanking mold is used to directly cut and support the parts in the tape, which solves the problem of part deformation and improves production quality.
Patent Information
- Application Number
- CN202411903707.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-03-25
AI Technical Summary
During the production process of tape forming parts, the parts are prone to deformation during the cutting process, resulting in a decrease in production quality.
A continuous mold including a forming mold and a blanking mold is used, and the two top plates are pressed respectively through two bolts, and two waste materials are cut out directly in the tape to prevent deformation of the supporting parts.
It effectively avoids deformation of parts under the action of cutting force, and significantly improves the production quality of parts.
Smart Images
Figure CN119681123A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of forming parts using strip materials, in particular to a continuous die and method for precisely forming parts on strip materials. Background Art
[0002] The structure of a part 1 is as follows Figure 1~Figure 2 The strip-shaped thin material shown in the figure has a width of 1 mm. This part 1 is mainly used to be installed in the housing of an electronic product. This part 1 is made of Figure 3~Figure 4 The method of producing the part 1 by using the strip material 2 in the workshop is: S1. The worker positions the strip 2 on the concave mold plate of the forming mold, and then controls the convex mold of the forming mold to move downward. When the convex mold matches the cavity in the concave mold plate, the first through groove 3 can be cut out in the strip 2. Figure 5 As shown; S2, control the convex mold of the forming mold to move upward, and then pull the strip 2 for a distance, repeat the operation of step S1 once, so as to cut out a second through groove 3 in the strip 2, such as Figure 6 As shown, at this time, a part 1 is formed between the first through slot 3 and the second through slot 3, and the front and rear ends of the part 1 are still connected to the strip 2; S3, the worker moves the strip material to the blanking die, and uses the blanking cutter head of the blanking die to cut off the connection between part 1 and strip material 2. After cutting, the following Figure 1~Figure 2 Part 1 shown; S4. The worker repeats steps S1 to S3 for multiple times, and then a plurality of parts 1 can be continuously produced using the strip 2.
[0003] However, although this method can produce multiple parts 1 using the strip 2, it still has the following technical defects in actual operation: In step S2, when the second through slot 3 is cut out in the strip 2, the part 1 between the first through slot 3 and the second through slot 3 is deformed to the left under the cutting force, and the deformation direction is as follows: Figure 6 As shown by the arrow in the middle, the part 1 cut out in step S3 is deformed [while the process requires that the produced part 1 does not have any deformation], thereby reducing the production quality of the part 1.
[0004] Therefore, there is an urgent need for a continuous mold and method that greatly improves the quality of part production. Summary of the invention
[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a continuous mold and method for precision molding parts on a strip material, which greatly improves the production quality of parts.
[0006] The object of the present invention is achieved through the following technical scheme: a continuous die for precision molding parts on a strip, which comprises a molding die and a blanking die, the molding die comprises a lower die and an upper die, the upper die comprises a connecting plate, two convex dies fixedly arranged on the bottom surface of the connecting plate, wherein the top end of the connecting plate is fixedly connected to the bottom of the piston rod of a punching machine A, the lower die comprises a base, a pad and a concave die plate fixedly arranged in sequence from bottom to top, a sink groove is provided on the top surface of the pad, two vertically arranged rectangular grooves are provided in the concave die plate, the two rectangular grooves are both connected to the sink groove, and ejector plates are slidably installed in the two rectangular grooves, the two ejector plates are respectively located directly below the two convex dies, the top surfaces of the two ejector plates are flush with the top surface of the concave die plate, springs are fixedly arranged on the bottom surfaces of the two ejector plates, and the other ends of the two springs are fixedly arranged on the bottom of the sink groove; The blanking die includes a blanking seat and a blanking cutter head located directly above the blanking seat, a blanking hole penetrating the top and bottom surfaces of the blanking seat is opened in the blanking seat, and waste discharge rods are fixed on the bottom surface of the blanking cutter head and located at both the left and right ends, wherein the top end of the blanking cutter head is fixedly connected to the bottom of the piston rod of the punching machine B, and the outer contour of the blanking cutter head is slidably matched with the blanking hole.
[0007] The horizontal width between the right side wall of the left rectangular groove and the left side wall of the right rectangular groove is mm.
[0008] The base, the backing plate and the concave template are detachably connected together via screws.
[0009] The cross section of the top plate is rectangular.
[0010] The two waste discharge rods are symmetrically arranged with respect to the blanking cutter head.
[0011] A method for precision molding parts on a strip, comprising the following steps: S1. The worker supports the head end of the strip on the top surface of the concave mold plate of the forming mold, and ensures that the head end of the strip is just under the two convex molds, so as to achieve the positioning of the strip; S2, control the piston rod of the punching machine A to extend downward, the piston rod drives the connecting plate to move downward, the connecting plate drives the two punches to move downward, the two punches punch the strip downward, and press the ejector plate downward, the ejector plate compresses the spring downward, and at the same time, the punched waste moves downward synchronously with the ejector plate, the punch and the waste; when the two wastes are separated from the strip, two through grooves can be formed in the strip, and a part connected to the strip is formed between the two through grooves; S3, control the piston rod of the punching machine A to retract upward, the piston rod drives the connecting plate to move upward, the connecting plate drives the two punches to move upward, under the elastic restoring force of the spring, the ejector plate moves upward, and the ejector plate pushes the punched waste into the through slot, at this time, the waste is stuck in the through slot; S4, the strip is pulled onto the top surface of the blanking seat of the blanking die, and it is ensured that the two wastes in the strip are respectively located directly below the two waste discharge rods of the blanking die; then the worker controls the piston rod of the punching machine B to extend downward, the piston rod drives the blanking cutter head to move downward, the blanking cutter head drives the two waste discharge rods to move downward, the two waste discharge rods respectively push the wastes in the two through slots downward, the two wastes pushed downward pass through the blanking hole and fall to the ground, then the blanking cutter head cuts the parts in the strip, the cut parts pass through the blanking hole and fall to the ground, thereby producing the first part; S5. The worker repeats steps S1 to S4 for multiple times, and then a plurality of parts can be continuously produced using the strip material.
[0012] The present invention has the following advantages: The continuous die presses two ejector plates respectively through two punches, thereby directly cutting out two wastes in the strip. In other words, the two punches support the parts between the two through grooves, thereby avoiding deformation of the parts under the action of the cutting force. It can be seen that compared with the molding method in the workshop, the continuous die effectively avoids deformation of the molded parts, thereby greatly improving the production quality of the parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural diagram of a certain part; Figure 2 for Figure 1 A top view of Figure 3 It is a structural schematic diagram of the strip; Figure 4 for Figure 3 A top view of Figure 5 A schematic diagram of cutting out the first through slot in the strip; Figure 6 A schematic diagram of cutting out a second channel in the strip; Figure 7 It is a structural schematic diagram of the molding die of the present invention; Figure 8 for Figure 7 A-direction schematic diagram; Fig. 9 It is a structural schematic diagram of the blanking die of the present invention; Fig.10 It is a schematic diagram of the connection between the blanking cutter head and two waste discharge rods; Fig.11 for Fig.10 The main view; Fig.12 A schematic diagram of supporting the head end of the strip material on the top surface of the concave plate of the forming mold; Fig.13 It is a schematic diagram of the separation of two waste materials from the strip material; Fig.14 This is a schematic diagram of the ejector plate ejecting the punched waste into the through slot; Fig.15 A schematic diagram of pulling the strip material onto the top surface of the blanking seat of the blanking die; Fig.16 It is a schematic diagram of two waste discharge rods pushing the waste in the two through slots downwards respectively; In the figure: 1-parts, 2-strip material, 3-through slot, 4-connecting plate, 5-punch, 6-base, 7-pad, 8-concave template, 9-sink, 10-rectangular slot, 11-top plate, 12-spring, 13-blank seat, 14-blank cutter head, 15-blank hole, 16-waste discharge rod, 17-waste. DETAILED DESCRIPTION
[0014] The present invention is further described below in conjunction with the accompanying drawings, and the protection scope of the present invention is not limited to the following: like Figure 7~Figure 11 As shown, a continuous die for precision molding parts on a strip, which includes a molding die and a blanking die, the molding die includes a lower die and an upper die, the upper die includes a connecting plate 4, two convex dies 5 fixed on the bottom surface of the connecting plate 4, wherein the top end of the connecting plate 4 is fixedly connected to the bottom of the piston rod of the punching machine A, the lower die includes a base 6, a pad 7 and a concave die plate 8 fixed in sequence from bottom to top, the base 6, the pad 7 and the concave die plate 8 are detachably connected to each other by screws, a countersunk groove 9 is provided on the top surface of the pad 7, and two vertically arranged rectangular grooves 10 are provided in the concave die plate 8, and the horizontal width between the right side wall of the left rectangular groove 10 and the left side wall of the right rectangular groove 10 is 1 mm.
[0015] The two rectangular grooves 10 are both connected with the sink 9. A top plate 11 is slidably installed in the two rectangular grooves 10. The cross-section of the top plate 11 is rectangular. The two top plates 11 are respectively located directly below the two punches 5. The top surfaces of the two top plates 11 are flush with the top surface of the concave mold plate 8. Springs 12 are fixed on the bottom surfaces of the two top plates 11, and the other ends of the two springs 12 are fixed to the bottom of the sink 9.
[0016] The blanking die includes a blanking seat 13 and a blanking cutter head 14 located directly above the blanking seat 13. A blanking hole 15 penetrating the top and bottom surfaces of the blanking seat 13 is opened in the blanking seat 13. Waste discharge rods 16 are fixed on the bottom surface of the blanking cutter head 14 and located at both the left and right ends. The two waste discharge rods 16 are symmetrically arranged about the blanking cutter head 14. The top end of the blanking cutter head 14 is fixedly connected to the bottom of the piston rod of the punching machine B, and the outer contour of the blanking cutter head 14 is slidably matched with the blanking hole 15.
[0017] A method for precision molding parts on a strip, comprising the following steps: S1. Workers will Figure 3~Figure 4 The head end of the strip 2 shown is supported on the top surface of the concave plate 8 of the forming mold, as shown in FIG. Fig.12 As shown, it is ensured that the head end of the strip 2 is just below the two punches 5, thereby achieving the positioning of the strip 2; S2, control the piston rod of the punching machine A to extend downward, the piston rod drives the connecting plate 4 to move downward, the connecting plate 4 drives the two punches 5 to move downward, the two punches 5 punch and cut the strip 2 downward, and press the ejector plate 11 downward, the ejector plate 11 compresses the spring 12 downward, and at the same time, the punched waste 17 moves downward synchronously with the ejector plate 11, the punch 5 and the waste 17; when the two wastes 17 are separated from the strip 2, as shown in FIG. Fig.13 As shown, two through grooves 3 can be formed in the strip 2, and a part 1 connected to the strip 2 is formed between the two through grooves 3; S3, control the piston rod of the punching machine A to retract upward, the piston rod drives the connecting plate 4 to move upward, the connecting plate 4 drives the two punches 5 to move upward, under the elastic restoring force of the spring 12, the ejector plate 11 moves upward, and the ejector plate 11 pushes the punched waste 17 into the through groove 3, as shown in FIG. Fig.14 As shown, at this time, the waste 17 is stuck in the through slot 3; Among them, it can be seen from steps S2 to S3 that the continuous die presses two ejector plates 11 respectively through two punches 5, thereby directly cutting out two waste materials 17 in the strip 2, that is, the two punches 5 support the part 1 located between the two through grooves 3, thereby avoiding deformation of the part 1 under the action of the cutting force. It can be seen that compared with the molding method in the workshop, the continuous die effectively avoids deformation of the molded part 1, thereby greatly improving the production quality of the part 1.
[0018] S4, pulling the strip 2 onto the top surface of the blanking seat 13 of the blanking die, as shown in Fig.15 As shown, and ensure that the two wastes 17 in the strip 2 are respectively located directly below the two waste discharge rods 16 of the blanking die; then the worker controls the piston rod of the punching machine B to extend downward, the piston rod drives the blanking cutter head 14 to move downward, the blanking cutter head 14 drives the two waste discharge rods 16 to move downward, and the two waste discharge rods 16 respectively push the wastes 17 in the two through slots 3 downward, as shown in FIG. Fig.16 As shown, the two waste materials 17 ejected downward pass through the blanking hole 15 and fall to the ground, and then the blanking cutter head 14 cuts the parts 1 in the strip 2, and the cut parts 1 pass through the blanking hole 15 and fall to the ground, thereby producing the first Figure 1~Figure 2 Part 1 shown; S5. The worker repeats steps S1 to S4 for multiple times, and then a plurality of parts 1 can be continuously produced using the strip 2.
[0019] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A continuous die for precision molding parts on a strip, characterized in that: It comprises a forming die and a blanking die, wherein the forming die comprises a lower die and an upper die, wherein the upper die comprises a connecting plate (4) and two convex dies (5) fixedly arranged on the bottom surface of the connecting plate (4), wherein the top end of the connecting plate (4) is fixedly connected to the bottom of the piston rod of a punching machine A, and the lower die comprises a base (6), a pad (7) and a concave die plate (8) fixedly arranged in sequence from bottom to top, wherein a sink groove (9) is provided on the top surface of the pad (7), and the concave die plate (8) is provided with two vertically arranged rectangular grooves (10), the two rectangular grooves (10) are both connected to the sink groove (9), and ejector plates (11) are slidably installed in the two rectangular grooves (10), the two ejector plates (11) are respectively located directly below the two convex dies (5), the top surfaces of the two ejector plates (11) are both flush with the top surface of the concave die plate (8), and springs (12) are fixedly arranged on the bottom surfaces of the two ejector plates (11), and the other ends of the two springs (12) are fixedly arranged on the bottom of the sink groove (9); The blanking die comprises a blanking seat (13), a blanking cutter head (14) located directly above the blanking seat (13), a blanking hole (15) penetrating the top and bottom surfaces of the blanking seat (13), and waste discharge rods (16) are fixedly provided on the bottom surface of the blanking cutter head (14) and at both the left and right ends, wherein the top end of the blanking cutter head (14) is fixedly connected to the bottom of the piston rod of the punching machine B, and the outer contour of the blanking cutter head (14) is slidably matched with the blanking hole (15).
2. A continuous die for precision molding parts on a strip according to claim 1, characterized in that: The horizontal width between the right side wall of the left rectangular groove (10) and the left side wall of the right rectangular groove (10) is 1 mm.
3. A continuous die for precision molding parts on a strip according to claim 2, characterized in that: The base (6), the backing plate (7) and the concave mold plate (8) are detachably connected together via screws.
4. A continuous die for precision molding parts on a strip according to claim 3, characterized in that: The cross section of the ejector plate (11) is rectangular.
5. A continuous die for precision molding parts on a strip according to claim 4, characterized in that: The two waste discharge rods (16) are symmetrically arranged with respect to the blanking cutter head (14).
6. A method for precision molding parts on a strip, using the continuous die for precision molding parts on a strip as claimed in claim 5, characterized in that: It includes the following steps: S1. A worker supports the head end of the strip (2) on the top surface of the concave mold plate (8) of the forming mold, and ensures that the head end of the strip (2) is just below the two convex molds (5), thereby achieving positioning of the strip (2); S2, control the piston rod of the punching machine A to extend downward, the piston rod drives the connecting plate (4) to move downward, the connecting plate (4) drives the two punches (5) to move downward, the two punches (5) punch downward the strip (2), and press the ejector plate (11) downward, the ejector plate (11) compresses the spring (12) downward, and at the same time, the punched waste material (17) moves downward synchronously with the ejector plate (11), the punch (5) and the waste material (17); when the two waste materials (17) are separated from the strip (2), two through grooves (3) are formed in the strip (2), and a part (1) connected to the strip (2) is formed between the two through grooves (3); S3, control the piston rod of the punching machine A to retract upward, the piston rod drives the connecting plate (4) to move upward, the connecting plate (4) drives the two punches (5) to move upward, under the elastic restoring force of the spring (12), the ejector plate (11) moves upward, and the ejector plate (11) pushes the punched waste material (17) into the through groove (3), at which time, the waste material (17) is stuck in the through groove (3); S4, the strip (2) is pulled onto the top surface of the blanking seat (13) of the blanking die, and it is ensured that the two waste materials (17) in the strip (2) are respectively located directly below the two waste discharge rods (16) of the blanking die; then the worker controls the piston rod of the punching machine B to extend downward, and the piston rod drives the blanking cutter head (14) to move downward, and the blanking cutter head (14) drives the two waste discharge rods (16) to move downward, and the two waste discharge rods (16) respectively push the waste materials (17) in the two through grooves (3) downward, and the two waste materials (17) pushed downward pass through the blanking hole (15) and fall to the ground, and then the blanking cutter head (14) cuts the part (1) in the strip (2), and the cut part (1) passes through the blanking hole (15) and falls to the ground, thereby producing the first part (1); S5. The worker repeats steps S1 to S4 for multiple times, and can use the strip material (2) to continuously produce multiple parts (1).