Method for stamping embossed metal sheet

Abstract

The present application provides a stamping method of printed metal plate, which solves the problem of low stamping efficiency caused by front end shaking of the printed metal plate. The method comprises the following steps: step one, setting a support flat plate on the lower die plate of the stamping part; step two, setting an electromagnetic adsorption unit below the support flat plate; step three, the electromagnetic adsorption unit is powered on when the printed metal plate moves on the support flat plate, and is powered off when the printed metal plate is static; step four, the stamping speed of the stamping part comprises uniform acceleration section, uniform speed section and uniform deceleration section corresponding to the front section, middle section and rear section of the printed metal plate respectively. When the printed metal plate is conveyed from the support flat plate to the stamping part, the electromagnetic adsorption unit is powered on to have suction force on the plate, so that the plate moves stably, the electromagnetic adsorption unit is powered off when reaching the stamping position, the length of the plate gradually shortens after stamping, the strength of the un-stamped part of the plate gradually increases, the stamping speed gradually accelerates, then keeps uniform speed, and finally uniformly decelerates to stamp the next plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the stamping technical field, specifically to the stamping method of printed metal plate. BACKGROUND

[0002] Chinese patent authorization announcement No. CN109093018B discloses no empty stamping, which clamps the steel plate by feeding clamp, then conveys the steel plate to the stamping part for stamping, thereby realizing the stamping of the steel plate. The printed metal plate is printed with patterns on the metal plate, and the precision needs to be ensured during stamping to ensure that the metal plate of the printed part is stamped. However, the printed metal plate is sheet-shaped, and when the feeding clamp clamps the printed metal plate and feeds it into the stamping part, the front end of the printed metal plate will vibrate during the fast feeding and stamping process, which will cause inaccurate stamping. In order to ensure the stamping precision, the stamping speed cannot be too fast, which leads to the inability to improve the production efficiency. SUMMARY

[0003] In order to overcome the shortcomings of the background art, the present application provides a stamping method of printed metal plate, which solves the problem of low stamping efficiency of printed metal plate caused by front end vibration.

[0004] The technical scheme adopted by the present application is as follows:

[0005] The stamping method of printed metal plate comprises the following steps:

[0006] Step one, a supporting flat plate is arranged on the lower die plate of the stamping part;

[0007] Step two, an electromagnetic adsorption unit is arranged below the supporting flat plate;

[0008] Step three, the electromagnetic adsorption unit is powered on when the printed metal plate moves on the supporting flat plate, and the electromagnetic adsorption unit is powered off when the printed metal plate is static on the supporting flat plate;

[0009] Step four, during the stamping process of the printed metal plate, the stamping speed of the stamping part includes uniform acceleration section, uniform speed section and uniform deceleration section, and the uniform acceleration section, uniform speed section and uniform deceleration section correspond to the front section, middle section and rear section of the printed metal plate respectively.

[0010] The length of the front section of the printed metal plate accounts for one fourth to one third of the total length of the printed metal plate, and the length of the rear section of the printed metal plate accounts for one fourth to one third of the total length of the printed metal plate.

[0011] The magnetic force of the electromagnetic adsorption unit gradually increases with the movement of the printed metal plate.

[0012] The maximum adsorption force of the electromagnetic adsorption unit is 76-80N, and the distance between the electromagnetic adsorption unit and the printed metal plate is 5-10mm.

[0013] The electromagnetic adsorption units are provided in at least two groups, and the adjacent electromagnetic adsorption units are staggered.

[0014] The upper surface of the support flat plate is provided with anti-skid lines.

[0015] The front end of the support flat plate is provided with a guide slope.

[0016] The beneficial effects of the present application are:

[0017] When the feeding clamp transports the printed metal plate from the support flat plate to the stamping part, the electromagnetic adsorption unit is powered on to have an attractive force on the printed metal plate, so that the printed metal plate moves stably, and when reaching the stamping position, the electromagnetic adsorption unit is powered off, the length of the printed metal plate gradually shortens after stamping, the strength of the un-stamped part of the plate gradually increases, and the stamping speed gradually increases, then keeps uniform speed, and finally slows down slowly to prepare for stamping the next printed metal plate, and the variable speed of the slide block provided with a punch is controlled by a frequency conversion motor, so that the stamping method can not only greatly improve the efficiency of the printed metal plate, but also ensure the stamping precision. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the present application.

[0019] Figure 2 is a schematic view of the present application.

[0020] Figure 3 is a schematic view of the present application.

[0021] Support flat plate 1, electromagnetic adsorption unit 2, anti-skid lines 3, guide slope 4. DETAILED DESCRIPTION

[0022] The present application will be further described below in combination with the drawings and examples:

[0023] In the example, as shown in Figure 1 , Figure 2 , Figure 3 The stamping method of the printed metal plate comprises the following steps:

[0024] Step one, setting a support flat plate 1 on the lower die plate of the stamping part;

[0025] Step two, setting an electromagnetic adsorption unit 2 below the support flat plate 1;

[0026] Step three, powering on the electromagnetic adsorption unit 2 when the printed metal plate moves on the support flat plate 1, and powering off the electromagnetic adsorption unit 2 when the printed metal plate is stationary on the support flat plate 1;

[0027] In the stamping process of the stamping metal plate, the stamping speed of the stamping part includes a uniform acceleration section, a uniform speed section and a uniform deceleration section, and the uniform acceleration section, the uniform speed section and the uniform deceleration section correspond to the front section, the middle section and the rear section of the stamping metal plate respectively.

[0028] The electromagnetic adsorption unit 2 is an electromagnetic chuck, the stamping metal plate is a stamping iron plate or a stamping steel plate, when the stamping metal plate is conveyed from the supporting flat plate 1 to the stamping part by the feeding clamp, the electromagnetic adsorption unit 2 is powered to have an attractive force on the stamping metal plate, so that the stamping metal plate moves stably, when reaching the stamping position, the electromagnetic adsorption unit 2 is powered off, the length of the stamping metal plate gradually shortens after stamping, the strength of the un-stamped part of the stamping metal plate gradually increases, and the stamping speed gradually increases, then keeps uniform speed, and finally slows down slowly to prepare for stamping the next stamping metal plate, and the variable speed of the slide block provided with the punch is controlled by a frequency conversion motor, so that the stamping method can not only greatly improve the efficiency of the stamping metal plate, but also ensure the stamping precision.

[0029] In the embodiment, the length of the front section of the stamping metal plate accounts for one fourth to one third of the total length of the stamping metal plate, and the length of the rear section of the stamping metal plate accounts for one fourth to one third of the total length of the stamping metal plate. When the length of the stamping metal plate is stamped to one fourth to one third, the stability of the stamping metal plate is improved, so that the stamping speed can be kept uniform, and the stamping length of the optimal uniform acceleration section accounts for 0.27 of the total length of the stamping metal plate.

[0030] In the embodiment, as shown in Figure 2 The magnetic force of the electromagnetic adsorption unit 2 gradually increases with the movement of the stamping metal plate. The magnetic force of the electromagnetic adsorption unit 2 increases from small to large during the movement of the stamping metal plate, which not only facilitates the start of the stamping metal plate, but also makes the stamping metal plate more and more stable during the movement, and is not easy to shake.

[0031] In the embodiment, the maximum attractive force of the electromagnetic adsorption unit 2 is 76-80 Newton, and the distance between the electromagnetic adsorption unit 2 and the stamping metal plate is 5-10 mm. The distance between the electromagnetic adsorption unit 2 and the stamping metal plate can be adjusted, which is suitable for stamping metal plates with different thicknesses.

[0032] In the embodiment, the electromagnetic adsorption unit 2 is provided with at least two groups, and the adjacent electromagnetic adsorption units 2 are arranged in a staggered manner. The stamping metal plate can be better adsorbed, and the stability of the stamping metal plate after the feeding clamp stops can be ensured.

[0033] In the embodiment, as shown in Figure 1 The upper surface of the supporting flat plate 1 is provided with anti-skid lines 3. The anti-skid lines 3 prevent the stamping metal plate from slipping on the surface of the supporting flat plate 1, which affects the stamping precision.

[0034] In the embodiment, as shown in Figure 1As shown, the front end of the support flat plate 1 is provided with a guide inclined surface 4. The guide inclined surface 4 facilitates the feeding clamp to convey the printed metal plate from the feeding platform to the support flat plate 1, and the front end of the printed metal plate is not easy to interfere with the front end of the support flat plate 1.

[0035] Obviously, the above embodiments of the present application are only examples for illustrating the present application, and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. All the embodiments do not need to be exhausted, and the obvious changes or variations derived from the essential spirit of the present application still belong to the protection scope of the present application.

Claims

1. A stamping method for printed metal sheets, characterized in that, Includes the following steps: Step 1: Set a support plate (1) on the lower die of the stamping part. Step 2: An electromagnetic adsorption unit (2) is installed below the support plate (1). Step 3: When the supporting plate (1) moves, the electromagnetic adsorption unit (2) is energized; when the supporting plate (1) is stationary, the electromagnetic adsorption unit (2) is de-energized. Step four: During the stamping process of the printed metal sheet, the stamping speed of the stamping part includes a uniform acceleration section, a uniform speed section, and a uniform deceleration section, which correspond to the front section, middle section, and rear section of the printed metal sheet, respectively.

2. The stamping method for printed metal sheets as described in claim 1, characterized in that: The front section of the printed metal sheet accounts for one-quarter to one-third of its total length, and the rear section of the printed metal sheet accounts for one-quarter to one-third of its total length.

3. The stamping method for printed metal sheets as described in claim 1, characterized in that: The magnetic force of the electromagnetic adsorption unit (2) gradually increases as the printed metal sheet moves.

4. The stamping method for printed metal sheets as described in claim 3, characterized in that: The maximum suction force of the electromagnetic adsorption unit (2) is 76-80 Newtons, and the distance between the electromagnetic adsorption unit (2) and the printed metal sheet is 5-10mm.

5. The stamping method for printed metal sheets as described in claim 1, characterized in that: The electromagnetic adsorption unit (2) is provided in at least two sets, with adjacent electromagnetic adsorption units (2) arranged in an alternating manner.

6. The stamping method for printed metal sheets as described in claim 1, characterized in that: The upper surface of the support plate (1) is provided with anti-slip texture (3).

7. The stamping method for printed metal sheets as described in claim 1, characterized in that: The front end of the support plate (1) is provided with a guide slope (4).

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