Stamping die plate supporting device

Abstract

The utility model relates to the technical field of dies, and discloses a stamping die plate supporting device, which is applied to a die and comprises an air cylinder, a supporting rod, a pressing plate, a pressing plate, a pressing plate and a pressing plate, and is characterized in that the air cylinder is mounted on a lower die of the die; the ejector rod is connected to a piston rod of the air cylinder, the highest point of the ejector rod is lower than the surface of a male die of the die when the piston rod of the air cylinder retracts, and the highest point of the ejector rod is flush with a material pressing ring of the die when the piston rod of the air cylinder stretches out. The air cylinder is installed at the proper position of the lower die body of the die, the ejector rod is jacked through power of the air cylinder, the middle of a plate is effectively supported, the situation that the middle of the plate is too large, no supporting exists in the middle of the plate, and the center of the plate collapses due to the gravity of the plate is prevented, so that the plate can smoothly move in the punch forming process; and the occurrence of material stacking or other defects is prevented.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and more specifically, to a stamping die sheet support device. Background Technology

[0002] Before the drawing die stamps, the blank holder is in the raised position, while the punch is stationary in the middle of the blank holder. At this time, the blank holder is higher than the punch, and there is no sheet metal support in the middle. If the sheet metal is placed at this time, the length of the sheet metal inside the punch outline is large while the length outside the outline is small, which will cause the "waist collapse" phenomenon in the middle of the sheet metal.

[0003] The "waist collapse" phenomenon can affect the instability of sheet metal feeding during the stamping process. Severe "waist collapse" can cause premature material accumulation before the sheet metal is formed, affecting the product forming process and causing wrinkling after stamping. In severe cases, it can lead to major defects such as product stacking and even damage to the mold. Utility Model Content

[0004] The purpose of this utility model is to provide a stamping die sheet support device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0006] A sheet metal support device for stamping dies, used in the die, comprising:

[0007] A cylinder 100 is installed in the lower mold of the mold, and the piston rod of the cylinder 100 extends and retracts in the vertical direction.

[0008] The ejector rod 200 is connected to the piston rod of the cylinder 100. When the piston rod of the cylinder 100 is retracted, the highest point of the ejector rod 200 is lower than the surface of the punch of the mold. When the piston rod of the cylinder 100 is extended, the highest point of the ejector rod 200 is flush with the upper surface of the pressure ring of the mold.

[0009] Furthermore, the extension and retraction control of the cylinder 100 is coordinated with the mold control.

[0010] Furthermore, the cylinder 100 is detachably connected to the lower mold of the mold.

[0011] Furthermore, a regulating valve 300 is provided on the pipeline connecting the cylinder 100 to the air source.

[0012] Furthermore, the push rod 200 is detachably connected to the piston rod of the cylinder 100.

[0013] Furthermore, a protective pad is provided on the top rod 200.

[0014] Furthermore, the protective pad is made of polyurethane.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model provides a stamping die sheet support device. By installing a cylinder at a suitable position in the lower die of the die, the cylinder power lifts the ejector rod, effectively supporting the middle part of the sheet material. This prevents the sheet material from collapsing in the middle due to lack of support and its own weight, which would otherwise cause the sheet material to be too large. This allows the sheet material to flow smoothly during the stamping process and prevents stacking or other defects.

[0017] The present invention provides a stamping die sheet support device, which is small in size, easy to install in the die, and reduces damage to the working surface of the die. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of a stamping die sheet support device in one embodiment;

[0020] Figure 2 This is a schematic diagram of the pipeline connection of a stamping die sheet support device in one embodiment;

[0021] 100. Cylinder;

[0022] 200. Top rod;

[0023] 300. Control valve;

[0024] 400. Pipeline. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] See Figure 1 , Figure 2 This embodiment provides a stamping die sheet support device, which is used in the die to support the sheet before stamping and prevent the sheet from "collapsed" in the middle. The support device includes a cylinder 100 and a push rod 200.

[0027] The cylinder 100 is installed at a suitable position on the lower mold of the mold to avoid interference with the punch. The cylinder body of the cylinder 100 is installed vertically, and the piston rod of the cylinder 100 moves vertically.

[0028] In some specific embodiments, the cylinder body of the cylinder 100 is detachably connected to the lower mold by fasteners such as bolts, which facilitates position adjustment according to the actual situation of the mold or sheet material.

[0029] For ease of control, in this embodiment, the extension and retraction control of the cylinder 100 is coordinated with the mold control. That is, when the mold is in the open state, the piston rod of the cylinder 100 is in the extended state under the control of the mold control system. When the mold stamping begins, the piston rod of the cylinder 100 begins to retract under the control of the mold control system.

[0030] The ejector rod 200 is connected to the piston rod of the cylinder 100. When the piston rod of the cylinder 100 is retracted, the highest point of the ejector rod 200 is lower than the surface of the punch of the mold. When the piston rod of the cylinder 100 is extended, the highest point of the ejector rod 200 is flush with the upper surface of the pressure ring of the mold, so as to provide effective support for the middle of the sheet metal.

[0031] In this embodiment, the ejector rod 200 is connected to the piston rod of the cylinder 100 by a detachable connection method such as a thread, which facilitates the replacement of the ejector rod 200 when it is damaged, or the replacement of the ejector rod 200 with different specifications and sizes according to the actual situation of the mold and the sheet metal.

[0032] In some specific embodiments, in order to prevent the top rod 200 from damaging the sheet material when supporting it, a protective pad is provided on the top rod 200. As a preferred option, the protective pad is made of polyurethane.

[0033] To ensure the stability of the support provided by the top rod 200 to the sheet metal, in this embodiment, a regulating valve 300 is also provided on the pipeline 400 connecting the cylinder 100 to the air source. The regulating valve 300 can maintain the stability of the air pressure, ensure the stability of the piston rod extension of the cylinder 100, and thus ensure the stability of the support provided to the sheet metal.

[0034] The working principle of a stamping die sheet support device provided in this embodiment is as follows:

[0035] In use, after the stamped part is removed in the previous stamping process and before the blank is put in, the cylinder 100 drives the ejector rod 200 to extend out of the punch surface to support the blank and prevent it from "collapsed". When the stamping process begins, the cylinder 100 drives the ejector rod 200 to retract into the punch surface to prevent interference.

[0036] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sheet metal support device for stamping dies, used in the die, characterized in that, include: A cylinder (100) is installed on the lower mold of the mold, and the piston rod of the cylinder (100) extends and retracts in the vertical direction; A push rod (200) is connected to the piston rod of the cylinder (100). When the piston rod of the cylinder (100) is retracted, the highest point of the push rod (200) is lower than the surface of the punch of the mold. When the piston rod of the cylinder (100) is extended, the highest point of the push rod (200) is flush with the upper surface of the pressure ring of the mold.

2. The stamping die sheet support device according to claim 1, characterized in that, The extension and retraction control of the cylinder (100) is coordinated with the mold control.

3. The stamping die sheet support device according to claim 1, characterized in that, The cylinder (100) is detachably connected to the lower mold of the mold.

4. The stamping die sheet support device according to claim 1, characterized in that, A regulating valve (300) is installed on the pipeline connecting the cylinder (100) to the air source.

5. A stamping die sheet support device according to claim 1, characterized in that, The push rod (200) is detachably connected to the piston rod of the cylinder (100).

6. The stamping die sheet support device according to claim 1, characterized in that, A protective pad is provided on the top rod (200).

7. A stamping die sheet support device according to claim 6, characterized in that, The protective pad is made of polyurethane.

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