Progressive die material supporting structure and progressive die with material supporting structure
By introducing a support block, pressure bar, and ejector pin structure into the progressive die, the deformation problem of the workpiece forming part during the unloading process of the die cavity is solved, and stable forming of the workpiece is achieved.
Patent Information
- Application Number
- CN202423198105.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The existing progressive die has a problem where the die cavity causes deformation of the workpiece forming part during the unloading process.
A progressive die material support structure was designed, including a die cavity, a support block strip, an ejector rod, and a spring. The support block strip is fixedly connected to the bottom of the die cavity, and the ejector rod passes through the solid part of the lower die plate and is connected to the support block strip to provide a downward force to prevent the die cavity from deforming the workpiece.
The cooperation of the support block, pressure strip, and ejector pin prevents deformation of the workpiece forming part by the die, thus ensuring the forming quality of the workpiece.
Smart Images
Figure CN223588156U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to die device technical field, in particular to a kind of progressive die material supporting structure and the progressive die with the material supporting structure of this. BACKGROUND
[0002] Progressive die downward forming step is mainly composed of punch, die, pressing plate. First, die is below material strip, pressing plate is on material strip and presses material strip, punch is driven by machine tool and moves downward to contact material strip, and under the action of machine tool, punch die forms material sheet. In progressive die, material strip needs to be connected and driven step by step to produce backward, but after downward forming, part will be held in die, cannot move, and it is necessary to increase material supporting to unload formed part and then form next step. When adopting upward floating form to unload whole die to maintain normal material running, at this time, as shown in the drawing, a problem will appear, die is opened to dead, pressing plate presses material first, and then die holder and punch (101) are formed by machine tool driving, when pressing plate presses material strip, die (103) will not be pressed, and still be pushed out by spring (106) at bottom as floating state, but workpiece (102) boundary has been pressed by pressing plate, so die (103) will cause great force to previous forming part of workpiece under the action of spring (106), and previous forming part of workpiece is deformed. Figure 1 UTILITY MODEL CONTENTS
[0003] The utility model aims at technical defects in prior art, and provides a kind of progressive die material supporting structure and the progressive die with the material supporting structure.
[0004] The technical scheme for realizing the utility model is as follows:
[0005] A kind of progressive die material supporting structure, including die, block pressing strip, ejector rod and spring, wherein, die is slidably embedded on lower die plate of progressive die, block pressing strip is fixedly connected at the bottom of die, block pressing strip is slidably embedded inside lower die plate of progressive die, the side of block pressing strip has protruding part beyond die, the upper side of the protruding part is the entity part of lower die plate, and block pressing strip is limited, the ejector rod is vertically slidably installed on the entity part of lower die plate above protruding part, and the bottom end of ejector rod is connected with the protruding part of block pressing strip;Spring is arranged at the bottom of block pressing strip, for providing upward elastic force for block pressing strip.
[0006] In the above technical scheme, block pressing strip is fixedly connected at the bottom of die by bolt.
[0007] In the technical scheme, the lower die plate is internally provided with a mounting cavity for mounting the support block pressing strip, the height of the mounting cavity is greater than the thickness of the support block pressing strip, so that the support block pressing strip can slide up and down in the mounting cavity.
[0008] In the technical scheme, the number of the ejector rods is two, and the ejector rods are arranged on the protruding parts on the two sides of the support block pressing strip.
[0009] The progressive die comprises an upper die part and a lower die part, the upper die part is provided with a punch and a pressing plate, and a workpiece supporting structure of the progressive die is arranged on the lower die part.
[0010] In the technical scheme, the upper die part comprises an upper die seat, an upper backing plate arranged below the upper die seat and an upper clamping plate arranged below the upper backing plate, the punch is fixedly mounted on the upper clamping plate and the upper backing plate, and the pressing plate is mounted below the upper clamping plate through a top spring.
[0011] In the technical scheme, the pressing plate is formed by stacking an upper stripper plate and a back stripper plate in a top-down manner, and the back stripper plate is connected with the bottom end of the top spring.
[0012] In the technical scheme, the lower die part comprises a lower die seat, a base for supporting the lower die seat, a lower backing plate arranged on the upper end face of the lower die seat and a lower die plate arranged on the upper end face of the lower backing plate.
[0013] Compared with the prior art, the progressive die has the advantages that:
[0014] The progressive die workpiece supporting mechanism is provided with the support block pressing strip and the ejector rod, the support block pressing strip is fixedly connected with the bottom of the die, the support block pressing strip is embedded in the lower die plate of the progressive die and can slide up and down, the side part of the support block pressing strip has a protruding part which is higher than the die, the protruding part is limited by the solid part of the lower die plate, the ejector rod vertically slides through the solid part of the lower die plate above the protruding part and is connected with the protruding part of the support block pressing strip at the bottom end. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The progressive die workpiece supporting mechanism is provided with the support block pressing strip and the ejector rod, the support block pressing strip is fixedly connected with the bottom of the die, the support block pressing strip is embedded in the lower die plate of the progressive die and can slide up and down, the side part of the support block pressing strip has a protruding part which is higher than the die, the protruding part is limited by the solid part of the lower die plate, the ejector rod vertically slides through the solid part of the lower die plate above the protruding part and is connected with the protruding part of the support block pressing strip at the bottom end.
[0016] Figure 2 Fig. 3 shows the working state diagram of the progressive die material supporting structure in the opening mode of the die.
[0017] Figure 3 Fig. 4 shows the working state diagram of the progressive die material supporting structure in the closing mode of the die. DETAILED DESCRIPTION
[0018] The utility model will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.
[0019] Referring to Figure 2 , Figure 3 , a kind of progressive die material supporting structure and the progressive die with the material supporting structure in a preferred embodiment of the utility model are shown, the progressive die material supporting structure includes die 3, block pressing strip 5, ejector rod 4 and spring 6, wherein, die 3 can be slid up and down and be embedded in the lower die plate 14 of progressive die, block pressing strip 5 is fixedly connected at the bottom of die 3 by bolt 7, block pressing strip 5 can be slid up and down and be embedded in the inside of lower die plate 14 of progressive die (i.e. the inside of lower die plate 14 is provided with installation cavity for installing block pressing strip 5, the height of the installation cavity is greater than the thickness of block pressing strip 5, so that block pressing strip 5 can have the ability of sliding up and down in installation cavity), and the lateral length of block pressing strip 5 is greater than the lateral length of die 3, so that the two sides of block pressing strip 5 have protruding part 51 beyond die 3, the protruding part 51 is above the entity part of lower die plate 14, and block pressing strip 5 is limited, the ejector rod 4 vertically slides and penetrates and is installed on the entity part of lower die plate 14 above protruding part 51, and the bottom end of ejector rod 4 is connected with the protruding part 51 of block pressing strip 5;Preferably, the number of the ejector rod 4 is two, and is arranged on the protruding part 51 of the two sides of block pressing strip 5;The spring 6 is arranged at the bottom center position of block pressing strip 5, for providing upward elastic force for block pressing strip 5.
[0020] The progressive die with the above-mentioned progressive die material supporting structure includes upper die part and lower die part, the upper die part is provided with punch 1 and pressing plate 100, and the progressive die material supporting structure is arranged on the lower die part.
[0021] In the process of closing the die, as the upper die part moves downward, the pressing plate 100 first contacts the ejector rod 4 (see Fig. 2), starts to apply pressure to the ejector rod 4, and as the spring 13 elastic force of the top of the pressing plate 100 is greater than the spring 6 elastic force of the bottom of the block pressing strip 5, the ejector rod 4 is pressed downward, and then the ejector rod 4 drives the block pressing strip 5 and the die 3 to move downward synchronously. Figure 2 Figure 3 );then, as continue to move down the die, punch 1 continue to down stamping workpiece, in the punch 1 stamping process, due to the blank holder 100 by the action of the top rod 4 and the block pressure strip 5 always to the concave die 3 maintain the downward force, and the force is greater than the spring 6 at the bottom of the block pressure strip 5 elastic force, not to workpiece 2 stress, therefore, the concave die 3 will not cause deformation to the workpiece before forming part.
[0022] Specifically, the upper die part includes an upper die seat 8, an upper pad 9 arranged below the upper die seat 8, and an upper clamp plate 10 arranged below the upper pad 9, the punch 1 is fixedly installed at the top of the upper clamp plate 10 and the upper pad 9, and the blank holder 100 is installed below the upper clamp plate 10 through a top spring 13. Further, the blank holder 100 is stacked up and down by a back stripper plate 11 and an upper stripper plate 12, and the back stripper plate 11 is connected with the bottom end of the top spring 13.
[0023] The lower die part includes a lower die seat 16, a base 17 for supporting the lower die seat 16, a lower pad 15 arranged on the upper end face of the lower die seat 16, and a lower die plate 14 arranged on the upper end face of the lower pad 15.
[0024] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as being on the "lower" side of other elements or features would then be oriented on the "upper" sides thereof. Thus, the exemplary term "lower" can encompass both an orientation of upper and lower. The device can be otherwise oriented (rotated 90 degrees or located in any other orientation) and the spatially relative descriptors used herein interpreted accordingly.
[0025] Moreover, relative terms such as "first" and "second" are used herein solely to distinguish one from another entity of the same type, not necessarily in an ordinal sense, unless explicitly stated otherwise.
[0026] The above description is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the present application.
Claims
1. A progressive die stock structure characterized by: The progressive die structure comprises a female die, a support block pressing strip, a top rod and a spring, wherein the female die is slidably embedded on a lower die plate of the progressive die, the support block pressing strip is fixedly connected at the bottom of the female die, the support block pressing strip is slidably embedded inside the lower die plate of the progressive die, the side of the support block pressing strip has a protruding part beyond the female die, the upper part of the protruding part is a solid part of the lower die plate for limiting the support block pressing strip, the top rod vertically slides through the solid part of the lower die plate above the protruding part, and the bottom end of the top rod is connected with the protruding part of the support block pressing strip; the spring is arranged at the bottom of the support block pressing strip for providing upward elastic force for the support block pressing strip.
2. The progressive die scrap structure of claim 1 wherein: The support block pressing strip is fixedly connected at the bottom of the female die by a bolt.
3. The progressive die scrap structure of claim 1 wherein: An installation cavity for installing the support block pressing strip is arranged inside the lower die plate, the height of the installation cavity is greater than the thickness of the support block pressing strip, so that the support block pressing strip can slide up and down in the installation cavity.
4. The progressive die scrap structure of claim 1 wherein: The number of the top rods is two, and the top rods are arranged on the protruding parts on both sides of the support block pressing strip.
5. A progressive die comprising an upper die portion and a lower die portion, characterised in that: The upper die part is provided with a punch and a pressing plate, and the lower die part is provided with the progressive die material supporting structure as claimed in claim 1.
6. The progressive die of claim 5, wherein: The upper die part comprises an upper die seat, an upper backing plate arranged below the upper die seat and an upper clamping plate arranged below the upper backing plate, the punch is fixedly installed at the top of the upper clamping plate and the upper backing plate, and the pressing plate is installed below the upper clamping plate by a top spring.
7. The progressive die of claim 5, wherein: The pressing plate is composed of a back stripper plate and an upper stripper plate stacked up and down, and the back stripper plate is connected with the bottom end of the top spring.
8. The progressive die of claim 5, wherein: The lower die part comprises a lower die seat, a base for supporting the lower die seat, a lower backing plate arranged on the upper end face of the lower die seat and a lower die plate arranged on the upper end face of the lower backing plate.