Misdelivery protection device for stamping parts

By designing a misfeed protection device consisting of a fixed plate, mounting blocks, mounting base plate, and elastic contact components, the problem of poor blanking accuracy in progressive dies was solved, enabling precise blanking and automated operation of stamped parts.

CN224195783UActive Publication Date: 2026-05-05HUZHOU DELPHI AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUZHOU DELPHI AUTO PARTS CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The blanking accuracy of intermediate dies in existing technologies is poor, making it difficult to guarantee the accuracy of the stamping process.

Method used

A misfeeding protection device was designed, comprising a fixed plate, mounting blocks, a mounting base plate, a contact sensor, and an elastic contact assembly. Through the cooperation of the elastic contact assembly and the contact sensor, precise material feeding control is achieved, ensuring the automated operation of the stamping machine.

Benefits of technology

It improves the control precision of material feeding, simplifies the operation process, increases the automation level of the stamping machine and die falling, and adapts to the material feeding requirements of different sized plates.

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Abstract

The utility model discloses a mistaken feeding protection device for stamping parts, and aims to provide the mistaken feeding protection device for the stamping parts, which can ensure the blanking forming precision. Comprising a fixing plate which is installed on a punching machine; the mounting vertical block is adjustably connected with the fixing plate; the mounting bottom plate is connected with the mounting vertical block, a contact sensor is mounted at the tail part of the mounting bottom plate, and the contact sensor is electrically connected with the punching machine; and the elastic contact assembly is mounted at the front end of the mounting bottom plate, and the elastic contact assembly corresponds to the contact sensor. The blanking control device has the beneficial effects that the blanking control precision is improved; the mounting structure is simple, assembling is convenient, and blanking operation of material plates of different sizes can be met through adjustment; by means of the structure, the operation automation of the punching machine and the die falling incoming materials can be improved, and operation is easy and convenient.
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Description

Technical Field

[0001] This utility model relates to the technical field of stamping machine accessories, and in particular to a protection device for preventing accidental feeding of stamped parts. Background Technology

[0002] Progressive dies, also known as continuous dies, refer to cold stamping dies that use strip-shaped raw materials to simultaneously complete multiple stamping processes at several different stations on a single die during a single stamping stroke of a press or hydraulic press. After each stamping stroke, the strip material moves a fixed distance once until the product is finished. During the stamping process, the material strip always moves in one direction. To ensure the accuracy of material feeding from progressive dies, a misfeeding protection device is required to guarantee the accuracy of material feeding. Utility Model Content

[0003] The present invention aims to overcome the shortcomings of poor blanking accuracy in the prior art and provides a misfeed protection device for stamped parts that ensures the blanking and forming accuracy.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a stamping part misfeed protection device, comprising:

[0005] A fixing plate, which is installed with the stamping machine;

[0006] The mounting block is adjustablely connected to the fixing plate;

[0007] A mounting base plate is connected to a mounting block, and a contact sensor is installed at the rear of the mounting base plate. The contact sensor is electrically connected to the stamping machine.

[0008] An elastic contact assembly is mounted on the front end of a mounting base plate and corresponds to a contact sensor.

[0009] This device includes a fixed plate, which is bolted to the feeding end of the stamping press. An adjustable mounting block is mounted on the fixed plate to accommodate parts of different sizes. A mounting base plate is mounted on the mounting block, and this base plate is connected to an elastic contact assembly and a contact sensor. The elastic contact assembly is mounted on the front of the mounting base plate, with one end contacting the mounting plate and the other end contacting the contact sensor. During feeding, when the end of the sheet metal contacts the elastic contact assembly, the contact sensor is activated. This sensor connects to the stamping press, causing it to operate and lower the die, completing the feeding process. This device ensures accurate sheet metal feeding, increases automation, and is simple and convenient to operate.

[0010] Preferably, the fixing plate is L-shaped, and the upright plate of the fixing plate is provided with two mounting slots arranged in parallel. Screws are inserted into the mounting slots for installation with the stamping machine. Specifically, the fixing plate is L-shaped, and the two mounting slots at the upright end allow for the installation of the fixing plate by inserting screws into the mounting slots and then connecting it to the stamping machine. The mounting slots are strip-shaped, allowing for height adjustment to ensure installation accuracy and, consequently, material cutting accuracy.

[0011] Preferably, the horizontal plate of the fixing plate is provided with a guide groove, and the bottom of the mounting block is provided with a guide block, which is a rectangular block. The guide block is placed in the guide groove, and a pressure plate is provided on the end face of the guide block. The pressure plate is connected to the guide block by a screw, and both ends of the pressure plate are in contact with the fixing plate. Specifically, the guide groove is provided at the end of the horizontal plate of the fixing plate; the guide groove is a strip-shaped groove; the guide block is provided at the lower end of the mounting block; the guide block is a rectangular block and is placed in the guide groove. Simultaneously, a pressure plate is provided on the outer side of the end face of the guide block; the pressure plate is connected to the guide block by a screw, and both ends of the pressure plate are in contact with the fixing plate. The pressure plate fixes the mounting block, ensuring both adjustable installation position and installation stability.

[0012] Preferably, the bottom surface of the horizontal plate of the fixing plate is provided with several notches and grooves, and the bottom surface of the pressure plate is provided with a locking block, which engages with the notches and grooves. Specifically, several notches and grooves are provided on the bottom surface of the horizontal plate end of the fixing plate, and these notches and grooves are arranged at equal intervals. Simultaneously, a locking block is provided on the bottom surface of the pressure plate, which can be embedded into the notches and grooves. This structure serves to position the mounting blocks and ensure installation stability.

[0013] Preferably, the mounting base plate has a threaded hole on its end face, and the mounting block has a clearance hole. A screw is installed in the clearance hole and connected to the threaded hole. Specifically, the threaded hole on the end face of the mounting base plate and the clearance hole on the mounting block are aligned with the threaded hole, and the mounting block is connected to the mounting base plate by a screw. This structure ensures stable installation by ensuring the connection between the mounting block and the mounting base plate.

[0014] Preferably, the elastic contact assembly includes a stabilizing block and a contact rod. The end face of the stabilizing block is provided with a slot, which engages with a mounting block. The mounting block is bolted to the stabilizing block. The stabilizing block is provided with a through hole, and the contact rod is sleeved with the through hole. A spring is sleeved at the front end of the contact rod, and a pin is provided at the rear end of the contact rod, which contacts the contact sensor. The elastic contact assembly includes a stabilizing block and a contact rod. The front end of the stabilizing block has a slot that engages with a mounting block, providing positioning. The mounting block and stabilizing block are connected by bolts. A through hole is provided on the stabilizing block, and the contact rod slides into this hole. A spring is fitted to the front end of the contact rod, providing support. A ejector pin is located at the rear end of the contact rod, contacting a contact sensor. When the material plate contacts the contact rod, the contact rod experiences a thrust, causing the ejector pin to strike the contact sensor, activating it. This causes the press to move the mold downwards, completing the material feeding. After feeding, the spring resets the contact rod, awaiting the material plate's next contact. This structure allows for precise control of the press and mold during contact, improving feeding accuracy and simplifying operation.

[0015] Preferably, the sidewall of the contact sensor is provided with a contact piece, which is electrically connected to the controller of the stamping machine. The contact piece on the contact sensor is electrically connected to the controller of the stamping machine, enabling the contact signal from the contact sensor to be transmitted to the controller of the stamping machine. This controller then controls the stamping machine to lower the die, completing the material unloading process. This structure makes operation simple and convenient.

[0016] The beneficial effects of this utility model are: improved material feeding control accuracy; simple installation structure and convenient assembly; adjustable to meet the material feeding operation of different sized plates; the structure setting can improve the automation of the material feeding operation of the stamping machine and the die, making the operation simple and convenient. Attached Figure Description

[0017] Figure 1 This utility model is a stereoscopic view Figure 1 ;

[0018] Figure 2 This utility model is a stereoscopic view Figure 2 ;

[0019] Figure 3 This is a cross-sectional view of the pressure plate in this utility model;

[0020] Figure 4 This is a cross-sectional view of the clearance hole in this utility model.

[0021] In the attached diagram, 1. Fixed plate, 2. Mounting block, 3. Mounting base plate, 4. Contact sensor, 5. Elastic contact assembly, 10. Mounting groove, 11. Guide groove, 12. Notch groove, 20. Guide block, 21. Pressure plate, 22. Locking block, 23. Clearance hole, 30. Threaded hole, 40. Contact piece, 50. Stabilizing block, 51. Contact rod, 52. Locking groove, 53. Through hole, 54. Spring, 55. Ejector pin. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0025] Example 1, such as Figure 1-4 As shown, a misfeed protection device for stamped parts includes: a fixed plate 1, which is installed on a stamping machine; a mounting block 2, which is adjustablely connected to the fixed plate 1; a mounting base plate 3, which is connected to the mounting block 2, and a contact sensor 4 is installed at the rear of the mounting base plate 3, which is electrically connected to the stamping machine; and an elastic contact component 5, which is installed at the front end of the mounting base plate 3 and corresponds to the contact sensor 4.

[0026] The fixing plate 1 is L-shaped, and the upright plate of the fixing plate 1 is provided with two mounting slots 10. The two mounting slots 10 are arranged in parallel, and screws are inserted into the mounting slots 10 for installation with the stamping machine.

[0027] The horizontal plate of the fixing plate 1 is provided with a guide groove 11, and the bottom of the mounting block 2 is provided with a guide block 20. The guide block 20 is a rectangular block and is placed in the guide groove 11. A pressure plate 21 is provided on the end face of the guide block 20. The pressure plate 21 is connected to the guide block 20 by a screw, and both ends of the pressure plate 21 are in contact with the fixing plate 1.

[0028] The bottom surface of the horizontal plate of the fixing plate 1 is provided with several notches and grooves 12, and the bottom surface of the pressure plate 21 is provided with a locking block 22, which engages with the notches and grooves 12.

[0029] The mounting base plate 3 has a threaded hole 30 on its end face, and the mounting block 2 has a clearance hole 23. A screw is installed in the clearance hole 23 and the screw is connected to the threaded hole 30.

[0030] The elastic contact assembly 5 includes a stabilizing block 50 and a contact rod 51. The end face of the stabilizing block 50 is provided with a slot 52, which is engaged with the mounting block 2. The mounting block 2 is bolted to the stabilizing block 50. The stabilizing block 50 is provided with a through hole 53, and the contact rod 51 is sleeved in the through hole 53. A spring 54 is sleeved at the front end of the contact rod 51, and a pin 55 is provided at the rear end of the contact rod 51. The pin 55 contacts the contact sensor 4.

[0031] The side wall of the contact sensor 4 is provided with a contact piece 40, which is electrically connected to the controller of the stamping machine.

[0032] The working principle of this utility model is as follows: Figure 1-4 As shown, this device includes a fixed plate 1, which is bolted to the feeding end of the stamping machine. An adjustable mounting block 2 is mounted on the fixed plate 1 to accommodate parts of different sizes. A mounting base plate 3 is mounted on the mounting block 2, connected to an elastic contact assembly 5 and a contact sensor 4. The elastic contact assembly 5 is mounted on the front of the mounting base plate 3, with one end contacting the mounting plate and the other end contacting the contact sensor 4. During feeding, when the end of the sheet metal contacts the elastic contact assembly 5, the contact sensor 4 is activated. The contact sensor 4 connects to the stamping machine, causing the stamping machine to operate, lowering the die, and completing the feeding. This device ensures accurate sheet metal feeding, increases automation, and is simple and convenient to operate.

[0033] The fixing plate 1 is L-shaped, and two mounting slots 10 are provided at the upright end of the fixing plate 1. When installing the fixing plate 1, screws are installed in the mounting slots 10 and the stamping machine is used to complete the installation. The mounting slots 10 are strip-shaped slots, which can realize the adjustment of the installation height, ensure the installation accuracy, and thus ensure the material cutting accuracy.

[0034] The mounting plate 1 has a guide groove 11 at its horizontal end. The guide groove 11 is a strip-shaped groove. The mounting block 20 is a rectangular block at the lower end of the mounting block 2. The guide block 20 is placed inside the guide groove 11. At the same time, a pressure plate 21 is provided on the outer side of the end face of the guide block 20. The pressure plate 21 is connected to the guide block 20 by a screw. Both ends of the pressure plate 21 are in contact with the mounting plate 1. The pressure plate 21 fixes the mounting block 2, ensuring that the installation position can be adjusted while ensuring installation stability.

[0035] Among them, a number of notches 12 are provided on the bottom surface of the horizontal plate end of the fixing plate 1. The notches 12 are arranged at equal intervals. At the same time, a locking block 22 is provided on the bottom surface of the pressure plate 21. The locking block 22 can be embedded into the notch 12. This structure can be used to position the installation block 2 and ensure the stability of the installation.

[0036] The mounting base plate 3 has a threaded hole 30 on its end face and a clearance hole 23 on its mounting block 2. The clearance hole 23 is aligned with the threaded hole 30 and the mounting block 2 is connected to the mounting base plate 3 by a screw. This structure ensures the connection between the mounting block 2 and the mounting base plate 3 and guarantees the stability of the installation.

[0037] The elastic contact assembly 5 includes a stabilizing block 50 and a contact rod 51. The front end of the stabilizing block 50 has a slot 52 that engages with the mounting block 2, serving as a positioning element. The mounting block 2 and the stabilizing block 50 are connected by bolts. A through hole 53 is provided on the stabilizing block 50, and the contact rod 51 slides into the through hole 53. A spring 54 is fitted onto the front end of the contact rod 51, providing support. A contact rod is positioned at the rear end of the contact rod 51. There is an ejector pin 55, which contacts the contact sensor 4. When the material plate contacts the contact rod 51, the contact rod 51 is pushed, and the ejector pin 55 strikes the contact sensor 4, activating the contact sensor 4. This causes the press to move the mold downward to complete the unloading. After the unloading is completed, the spring 54 resets the contact rod 51, waiting for the material plate to contact again. This structure can control the press to move the mold downward to complete the unloading when contacting the material plate. This structure can improve the unloading accuracy and make the operation simple and convenient.

[0038] The contact piece 40 on the contact sensor 4 is electrically connected to the controller of the stamping machine, so that the contact signal of the contact sensor 4 is transmitted to the controller of the stamping machine, and the stamping machine is controlled to drive the die to fall and complete the unloading. This structure makes the operation simple and convenient.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A misfeeding protection device for stamped parts, characterized in that, include: Fixing plate (1), which is installed with the stamping machine; Mounting block (2), which is tunably connected to fixing plate (1); Mounting base plate (3), which is connected to mounting block (2), and a contact sensor (4) is installed at the tail of the mounting base plate (3), which is electrically connected to the stamping machine; The elastic contact component (5) is installed at the front end of the mounting base plate (3) and corresponds to the contact sensor (4).

2. The misfeeding protection device for stamped parts according to claim 1, characterized in that, The fixing plate (1) is L-shaped, and the upright plate of the fixing plate (1) is provided with two mounting slots (10). The two mounting slots (10) are arranged in parallel, and a screw is inserted into the mounting slot (10) to install with the stamping machine.

3. The misfeeding protection device for stamped parts according to claim 1, characterized in that, The horizontal plate of the fixing plate (1) is provided with a guide groove (11), and the bottom of the mounting block (2) is provided with a guide block (20). The guide block (20) is a rectangular block and is placed in the guide groove (11). The end face of the guide block (20) is provided with a pressure plate (21). The pressure plate (21) is connected to the guide block (20) by a screw, and both ends of the pressure plate (21) are in contact with the fixing plate (1).

4. The misfeeding protection device for stamped parts according to claim 3, characterized in that, The bottom surface of the horizontal plate of the fixing plate (1) is provided with several notches and grooves (12), and the bottom surface of the pressure plate (21) is provided with a locking block (22), which engages with the notches and grooves (12).

5. The misfeeding protection device for stamped parts according to claim 1, characterized in that, The mounting base plate (3) has a threaded hole (30) on its end face, and the mounting block (2) has a clearance hole (23). A screw is installed in the clearance hole (23) and the screw is connected to the threaded hole (30).

6. The misfeeding protection device for stamped parts according to claim 1, characterized in that, The elastic contact assembly (5) includes a stabilizing block (50) and a contact rod (51). The end face of the stabilizing block (50) is provided with a slot (52), which is engaged with the mounting block (2). The mounting block (2) is bolted to the stabilizing block (50). The stabilizing block (50) is provided with a through hole (53), and the contact rod (51) is sleeved with the through hole (53). A spring (54) is sleeved at the front end of the contact rod (51), and a pin (55) is provided at the rear end of the contact rod (51). The pin (55) contacts the contact sensor (4).

7. The misfeeding protection device for stamped parts according to claim 1, characterized in that, The side wall of the contact sensor (4) is provided with a contact piece (40), which is electrically connected to the controller of the stamping machine.