Continuous stamping die with misfeed detection function

Abstract

The utility model discloses a continuous punch -pressing mould with false feeding detection function, including punch -pressing machine, upper die holder, lower die holder, feeding mechanism and feeding detection device, and false feeding detection device includes detection needle, support spring, insert block and micro -switch, and the inside of lower die holder is equipped with vertical slide hole, and the bottom of lower die holder is equipped with installation gap, and detection needle can be set in vertical slide hole and move up and down, and support spring is connected with detection needle, and insert block is detachably fixed in installation gap, and the top of insert block is equipped with the installation slot corresponding with vertical slide hole, and micro -switch is fixed in installation slot, and micro -switch is used for the on or off punch -pressing machine's closing control loop, and the top end of detection needle protrudes the top surface of lower die holder, and the bottom end extends to installation slot and corresponds with the button of micro -switch, the utility model discloses a continuous punch -pressing mould with false feeding detection function, and the structure is combined, and has the advantages of low cost and safe and reliable.

Description

Technical Field

[0001] This utility model relates to a continuous stamping die with a misfeed detection function. Background Technology

[0002] Currently, progressive dies account for a large proportion of stamping dies, and automated production has become a trend in hardware manufacturing. In the production of many progressive dies, due to the complexity of the forming process, the accurate positioning and feeding of the strip is crucial, as it directly affects the product's quality and the smooth progress of the stamping process. In actual production, the strip is usually fed into the die in a step-by-step manner by a feeding mechanism. If the feeding mechanism malfunctions or the strip traction is uneven, feeding pitch deviation, i.e., misfeeding, can easily occur.

[0003] To prevent misfeeding, misfeeding detection devices have been developed in the prior art. These devices are typically mounted on the upper die and trigger a signal when the upper die descends. However, existing misfeeding detection devices have the following problems in practical use: First, their structure is overly complex, with numerous parts, requiring extremely high machining and assembly precision, resulting in high manufacturing costs. Furthermore, because they are mounted on the upper die, the detection action occurs during the die's descent, leading to a signal triggering delay and insufficient timely protection against high-speed stamping.

[0004] Therefore, there is an urgent need for a misfeed detection solution that is simple in structure, reliable in operation, easy to maintain, and can trigger protection earlier, in order to solve the above problems. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a continuous stamping die with a misfeed detection function, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution of this utility model is to design a continuous stamping die with a misfeed detection function, including a stamping press, an upper die holder, a lower die holder, and a feeding mechanism. The feeding mechanism is used to drive the strip material to move on the top of the lower die holder, and the strip material has positioning holes. It also includes a misfeed detection device. The misfeed detection device includes a detection pin, a support spring, an insert, and a micro switch. The lower die base has a vertical sliding hole inside and a mounting notch at the bottom. The detection pin is movable up and down in the vertical sliding hole and is located on the material strip's travel path. The support spring is connected to the detection pin and is used to drive the detection pin to reset. The insert is detachably fixed in the mounting notch and has a mounting groove at its top corresponding to the vertical sliding hole. The micro switch is fixed in the mounting groove and is used to connect or disconnect the die-closing control circuit of the stamping machine. The top of the detection pin protrudes from the top surface of the lower die base, and the bottom of the detection pin extends into the mounting groove corresponding to the button of the micro switch.

[0007] Preferably, the sidewall of the vertical sliding hole is provided with an annular groove, the outer wall of the detection needle is provided with a convex ring located in the annular groove, and the two ends of the support spring are respectively connected to the bottom of the convex ring and the bottom end of the annular groove.

[0008] Preferably, the tip of the detection needle is hemispherical.

[0009] Preferably, the bottom of the insert extends to both sides to form a fixing part, and the fixing part is fixed to the lower mold base by screws.

[0010] Preferably, the bottom of the upper die holder is provided with a stamping punch, and the top of the lower die holder is provided with a stamping die.

[0011] The advantages and beneficial effects of this utility model are as follows: It provides a continuous stamping die with a misfeed detection function, which has a simple structure, significantly reduces the difficulty of processing, manufacturing and assembly, and significantly reduces costs. Furthermore, it can perform detection in the static stage after feeding is completed and before the die closes. Once a feeding error is detected, a stop command can be issued before the die closes, completely eliminating the risk of protection lag that may occur if the signal is triggered only after the upper die has descended, thus providing more absolute and safer protection for the die. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention.

[0013] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0014] Reference numerals: 1. Lower mold base; 2. Detection pin; 3. Support spring; 4. Insert; 5. Micro switch; 6. Vertical sliding hole; 7. Mounting notch; 8. Mounting groove; 9. Annular groove; 10. Protruding ring; 11. Fixing part; 12. Screw; 100. Material strip; 110. Positioning hole. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0016] The specific technical solution of this utility model is as follows: In one specific embodiment, such as Figure 1 and Figure 2 As shown, this utility model provides a continuous stamping die with a misfeed detection function, including a stamping machine, an upper die holder, a lower die holder 1, and a feeding mechanism. The feeding mechanism is used to drive the strip 100 to travel on the top of the lower die holder 1. The strip 100 has positioning holes 110. It also includes a misfeed detection device. The misfeed detection device includes a detection needle 2, a support spring 3, an insert 4, and a micro switch 5. The lower die base 1 has a vertical sliding hole 6 inside and a mounting notch 7 at the bottom. The detection needle 2 is movably disposed in the vertical sliding hole 6 and is located on the travel path of the material strip 100. The support spring 3 is connected to the detection needle 2 and is used to drive the detection needle 2 to reset. The insert 4 is detachably fixed in the mounting notch 7 and has a mounting groove 8 at the top corresponding to the vertical sliding hole 6. The micro switch 5 is fixed in the mounting groove 8 and is used to connect or disconnect the die closing control circuit of the stamping machine. The top end of the detection needle 2 protrudes from the top surface of the lower die base 1, and the bottom end of the detection needle 2 extends into the mounting groove 8 corresponding to the button of the micro switch 5.

[0017] The working principle of this utility model's continuous stamping die with misfeed detection function, based on the above scheme, is as follows: When the mold is opened, the feeding mechanism drives the strip 100 to move on the top of the lower mold base 1. When the strip 100 is fed accurately, the tip of the detection needle 2 is inserted into the positioning hole 110 of the strip 100 under the action of the support spring. At this time, the micro switch 5 does not operate, and the mold closing control circuit of the stamping machine is in the conducting state, and the mold closing action can be performed. When the strip 100 is fed off, the detection needle 2 is pressed down by the strip 100 and presses the button of the micro switch 5. At this time, the mold closing control circuit of the stamping machine is in the disconnected state, and the mold closing action cannot be performed.

[0018] In another specific embodiment, such as Figure 1 and Figure 2 As shown, the side wall of the vertical sliding hole 6 is provided with an annular groove 9, the outer wall of the detection needle 2 is provided with a convex ring 10 located in the annular groove 9, and the two ends of the support spring 3 are respectively connected to the bottom of the convex ring 10 and the bottom end of the annular groove 9.

[0019] The above solution is adopted to connect the support spring 3 and the detection needle 2.

[0020] In another specific embodiment, such as Figure 1 As shown, the tip of the detection needle 2 is hemispherical.

[0021] The above solution is adopted to prevent the tip of the detection needle 2 from blocking the normal movement of the conveyor belt 100.

[0022] In another specific embodiment, such as Figure 1 As shown, the bottom of the insert 4 extends to both sides to form a fixing part 11, and the fixing part 11 is fixed to the lower mold base 1 by screws 12.

[0023] The above solution is adopted to achieve the detachable and fixed installation of the insert 4.

[0024] In another specific embodiment, the bottom of the upper mold base is provided with a stamping punch, and the top of the lower mold base 1 is provided with a stamping die.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A continuous stamping die with a misfeed detection function, comprising a stamping press, an upper die holder, a lower die holder (1), and a feeding mechanism, wherein the feeding mechanism is used to drive a strip (100) to travel on the top of the lower die holder (1), and the strip (100) has a positioning hole (110), characterized in that, It also includes a misfeed detection device. The misfeed detection device includes a detection needle (2), a support spring (3), an insert (4), and a micro switch (5). The lower mold base (1) has a vertical sliding hole (6) inside and an installation notch (7) at the bottom. The detection needle (2) is movable up and down in the vertical sliding hole (6) and is located on the travel path of the material strip (100). The support spring (3) is connected to the detection needle (2) and is used to drive the detection needle. The probe (2) is reset, the insert (4) is detachably fixed in the mounting notch (7), and the top of the insert (4) is provided with a mounting groove (8) corresponding to the vertical sliding hole (6). The micro switch (5) is fixed in the mounting groove (8), and the micro switch (5) is used to connect or disconnect the die closing control circuit of the stamping machine. The top of the probe (2) protrudes from the top surface of the lower die base (1), and the bottom of the probe (2) extends into the mounting groove (8) corresponding to the button of the micro switch (5).

2. The continuous stamping die with misfeed detection function according to claim 1, characterized in that, The side wall of the vertical sliding hole (6) is provided with an annular groove (9), and the outer wall of the detection needle (2) is provided with a convex ring (10) located in the annular groove (9). The two ends of the support spring (3) are respectively connected to the bottom of the convex ring (10) and the bottom end of the annular groove (9).

3. The continuous stamping die with misfeed detection function according to claim 1, characterized in that, The tip of the detection needle (2) is hemispherical.

4. The continuous stamping die with misfeed detection function according to claim 1, characterized in that, The bottom of the insert (4) extends to both sides to form a fixing part (11), and the fixing part (11) is fixed to the lower mold base (1) by screws (12).

5. The continuous stamping die with misfeed detection function according to claim 1, characterized in that, The bottom of the upper mold base is provided with a stamping punch, and the top of the lower mold base (1) is provided with a stamping die.

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