Punching device

Abstract

The utility model provides a punching device, which relates to the technical field of die processing devices, and comprises a die pressing plate, an upper die cutter and a lower die cutter, the lower die cutter and the die pressing plate are used for fixing a processing material sheet, the upper die cutter is provided with a retreating groove, the die pressing plate is provided with a material returning blocking piece, and the material returning blocking piece is arranged on the die pressing plate. The material returning blocking piece is located in the receding groove and located between the upper die cutter and the machining material piece. Due to the fact that the material returning blocking piece is arranged between the upper die cutter and the machining material piece, after the material piece is punched, the material returning blocking piece can block separated materials, a punched product can better fall off, the quality of the product is guaranteed, and the service life of the upper die cutter and the service life of the lower die cutter are prolonged. Due to the fact that the upper die cutter moves for punching, in order to avoid interference between the material returning blocking piece and the upper die cutter and influence on normal movement of the upper die cutter, the upper die cutter is provided with the receding groove, and the material returning blocking piece can move along the receding groove so as to avoid the upper die cutter.

Description

Technical Field

[0001] The utility model relates to the technical field of mold processing devices, and in particular to a punching device. Background Art

[0002] In the process of stamping production or casting production, there is usually a step of separating the processed and formed materials by punching to separate the materials. The tool on the rib will generate magnetism during the long-term punching process of iron-nickel material products, resulting in the already punched products being adsorbed by the upper tool. The products adsorbed on the tool fall into the mold during the upward movement of the tool, causing the mold to jam and the tool to break. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a punching device to solve the above technical problems.

[0004] An embodiment of the utility model provides a punching device, which includes: a mold pressing plate, an upper die tool and a lower die tool. The lower die tool and the mold pressing plate are used to fix the processing sheet. A retracting groove is provided on the upper die tool, and a material discharging blocking member is provided on the mold pressing plate. The material discharging blocking member is located in the retracting groove and is located between the upper die tool and the processing sheet.

[0005] Further, the material discharging blocking member includes a blocking wire. A fixing hole or a fixing groove is provided on the mold pressing plate, and both ends of the blocking wire are fixed in the fixing hole or the fixing groove.

[0006] Further, a limiting groove is provided on the lower die tool, and the limiting groove is used to accommodate the processing sheet.

[0007] Further, a punching hole is provided on the lower die tool, and the punching hole corresponds to the position of the material on the processing sheet.

[0008] Further, a collecting box is provided at one end of the lower die tool away from the upper die tool, and the collecting box is communicated with the punching hole.

[0009] Further, an anti-slip fixing device is provided on the side of the mold pressing plate in contact with the processing sheet.

[0010] Further, let the diameter of the blocking wire be m, and let the depth of the retracting groove be n, m ≤ 0.8n.

[0011] Further, the blocking wire is made of a non-magnetic material.

[0012] Further, an upper die tool avoidance hole is provided on the mold pressing plate, and the material discharging blocking member is located at the center of the avoidance hole.

[0013] Further, positioning protrusions are provided at both ends of the mold pressing plate, and the side walls of the positioning protrusions form protection side walls.

[0014] A punching device provided by the utility model includes a die pressing plate, an upper die cutter, and a lower die cutter. The lower die cutter and the die pressing plate are used to fix a processing sheet. A retraction groove is formed on the upper die cutter, and a material-removing stopper is arranged on the die pressing plate. The material-removing stopper is located in the retraction groove and between the upper die cutter and the processing sheet. By arranging the material-removing stopper between the upper die cutter and the processing sheet, after punching the sheet, the material-removing stopper can block the separated material, enabling the punched product to fall off better, ensuring the product quality, and prolonging the service life of the upper die cutter and the lower die cutter. Since the upper die cutter moves for punching, to avoid interference between the material-removing stopper and the upper die cutter and affect the normal movement of the upper die cutter, a retraction groove is formed on the upper die cutter, and the material-removing stopper can move along the retraction groove to avoid the upper die cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is an exploded view of the punching device provided by an embodiment of the present utility model;

[0017] Figure 2 is a perspective view of the punching device provided by an embodiment of the present utility model.

[0018] Reference numerals: 100 - die pressing plate; 200 - upper die cutter; 300 - lower die cutter; 400 - processing sheet; 201 - retraction groove; 500 - material-removing stopper; 301 - punching hole; 101 - avoidance hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] The following will describe in detail some embodiments of the present utility model with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0023] Embodiment 1

[0024] Please refer to Figure 1 and Figure 2 As shown, in this embodiment, a punching device includes: a die pressing plate 100, an upper die cutter 200, and a lower die cutter 300. The lower die cutter 300 and the die pressing plate 100 are used to fix a processing sheet 400. A relief groove 201 is formed on the upper die cutter 200. A material discharging blocking member 500 is arranged on the die pressing plate 100. The material discharging blocking member 500 is located in the relief groove 201 and between the upper die cutter 200 and the processing sheet 400.

[0025] Please refer to Figure 1As shown, in this embodiment, the upper die cutter 200 moves back and forth in a straight line direction, and the upper die cutter 200 and the lower die cutter 300 are mutually adapted. The upper die cutter 200 moves relative to the lower die cutter 300 to form a shearing action with the lower die cutter 300, thereby punching and separating the material on the processing sheet 400. A die pressing plate 100 is arranged between the upper die cutter 200 and the lower die cutter 300. The die pressing plate 100 and the lower die cutter 300 cooperate with each other to form a clamping structure. The processing sheet 400 is fixed between the die pressing plate 100 and the lower die cutter 300. By pressing the processing sheet 400 with the die pressing plate 100, the stability of the processing sheet 400 is provided, ensuring that the upper die cutter 200 and the lower die cutter 300 accurately punch the material. A material discharging blocking member 500 is arranged on the die pressing plate 100. The material discharging blocking member 500 is located between the upper die cutter 200 and the processing sheet 400 and is used to block the material after punching, ensuring that the separated material falls smoothly. It can be understood that the upper die cutter 200 and the lower die cutter 300 are usually made of metal. During the punching process, especially during the long-term punching of products made of iron-nickel materials, the upper die cutter 200 is prone to generate magnetism and easily adsorb the products that have been punched. The products adsorbed on the cutter fall into the die during the upward movement of the cutter, resulting in die jamming and cutter breakage. Therefore, a material discharging blocking member 500 is arranged between the upper die cutter 200 and the processing sheet 400. After punching the sheet, the material discharging blocking member 500 can block the separated material, enabling the punched products to fall off better, ensuring the product quality, and increasing the service life of the upper die cutter 200 and the lower die cutter 300. Since the upper die cutter 200 moves for punching, to avoid interference between the material discharging blocking member 500 and the upper die cutter 200 and affect the normal movement of the upper die cutter 200, a relief groove 201 is opened on the upper die cutter 200, and the material discharging blocking member 500 can move along the relief groove 201 to avoid the upper die cutter 200.

[0026] Optionally, in some embodiments of this embodiment, the material discharging blocking member 500 includes a blocking wire. Fixing holes or fixing grooves are formed on the die pressing plate 100, and both ends of the blocking wire are fixed in the fixing holes or fixing grooves.

[0027] Please refer to Figure 1 and Figure 2As shown, in this embodiment, the material ejection blocking member 500 is a blocking line disposed between the upper die cutter 200 and the processing material plate. The die pressing plate 100 is provided with fixing holes or fixing grooves, and both ends of the blocking line are detachably installed in the fixing holes or fixing grooves. The blocking line can be made of nylon, carbon fiber or natural fiber, or can also be made of a metal wire. The blocking line can play a role in blocking the product. At the same time, the linear blocking line has a small volume, does not affect the original punching process, and is not easily adsorbed to the product, ensuring the blocking effect. In this embodiment, the blocking line is used as the material ejection blocking member 500, which has a low cost, is convenient for replacement and maintenance. When the blocking line is damaged, a new blocking line is replaced, and both ends of the new blocking line are fixed in the fixing holes or fixing grooves on the die pressing plate 100. Since the blocking line is easy to install, has a low cost and a small volume, the existing punching device can be modified, thereby reducing the equipment cost.

[0028] Optionally, in some embodiments of this embodiment, a limiting groove is provided on the lower die cutter 300, and the limiting groove is used to accommodate the processing material sheet 400.

[0029] Please refer to Figure 1 As shown, in this embodiment, the limiting groove not only plays a role in fixing the processing material sheet 400 and improving the stability during processing, but also plays a positioning role for positioning the processing material sheet 400. It can be understood that when punching, the material needs to be aligned with the upper die cutter 200 so as to accurately separate the material. The lower die cutter 300 is provided with a limiting groove. When punching is performed, the processing material sheet 400 is accurately moved into the limiting groove by a moving device. Under the positioning action of the limiting groove, the product to be punched is just located at the position of the upper die cutter 200. During the punching process, the die pressing plate 100 presses on the processing material sheet 400 to ensure the stability of the processing material sheet 400 and prevent the processing material sheet 400 from shifting, which affects the quality of the finished product.

[0030] Optionally, in some embodiments of this embodiment, punching holes 301 are provided on the lower die cutter 300, and the punching holes 301 correspond to the positions of the materials on the processing material sheet 400.

[0031] Please refer to Figure 1 As shown, in this embodiment, the punching holes 301 are arranged in an array on the lower die cutter 300, and the punching holes 301 cooperate with the limiting grooves on the lower die cutter 300 to play a positioning role. When the processing material plate is placed in the limiting groove, the products on the processing material plate are just placed in the punching holes 301. When the upper die cutter 200 performs punching, the punching holes 301 can avoid the upper die cutter 200 and prevent damage to the upper die cutter 200. After punching is completed, the products can also fall from the punching holes 301, preventing the products and materials from remaining in the punching device.

[0032] Optionally, in some implementations of the present embodiment, a material collecting box is provided at one end of the lower die cutter 300 away from the upper die cutter 200 , and the material collecting box is connected to the punching hole 301 .

[0033] Please refer to Figure 1 As shown, in this embodiment, a collection box is set at the lower end of the lower die tool 300, and the collection box is connected to the punching hole 301. The product material after punching can directly fall into the collection box through the punching hole 301, which is convenient for operators to collect and organize the processed products and improve production efficiency.

[0034] Optionally, in some implementations of this embodiment, a side of the mold platen 100 that contacts the processed sheet 400 is provided with an anti-slip fixing device.

[0035] In this embodiment, the protective fixing device can be an anti-skid protrusion, anti-skid stripe or positioning column provided on the mold pressing plate 100, which can achieve an anti-skid effect, and this embodiment does not limit it. During punching and cutting, the mold pressing plate 100 is directly pressed on the processing material plate, and the anti-skid protrusion is used to prevent slipping and limit the position, so as to ensure the stability of the processing material plate and avoid shaking of the processing material plate during punching and cutting, which affects the product quality.

[0036] Optionally, in some implementations of this embodiment, the diameter of the blocking line is set to m, the depth of the retreat groove 201 is set to n, and m≤0.8n.

[0037] In the present embodiment, the diameter of the blocking line is less than or equal to 80% of the depth of the retreat groove 201. During the punching and cutting movement of the upper die tool 200, the blocking line is avoided through the retreat groove 201 to avoid interference between the blocking line and the upper die tool 200. In order to avoid friction or abutment between the blocking line and the inner wall of the retreat groove 201, the diameter of the blocking line is less than or equal to 80% of the depth of the retreat groove 201. It can be understood that the blocking line is used to block the material product after punching, and a blocking line with a smaller diameter can meet the blocking requirements. During production, the depth and width of the retreat groove 201 are determined according to the diameter of the blocking line to ensure that during the punching operation, even if the upper die tool 200 moves to the extreme position, the blocking line will not conflict with the inner wall of the retreat groove 201.

[0038] Optionally, in some implementations of this embodiment, the blocking line is a diamagnetic material.

[0039] In this embodiment, the blocking wire can be made of anti-magnetic material. During use, the blocking wire will not generate magnetism, thereby preventing the blocking wire from magnetizing and adsorbing the processed products, thereby ensuring the safety and service life of the upper mold tool 200 and the lower mold tool 300.

[0040] Optionally, in some embodiments of this embodiment, a relief hole 101 for the upper die cutter 200 is formed in the die pressing plate 100, and the material discharging blocking member 500 is located at the central position of the relief hole 101.

[0041] Please refer to Figure 1 As shown, in this embodiment, the relief holes 101 are arranged in an array on the die pressing plate 100, and the relief holes 101 correspond one-to-one with the punching holes 301 on the lower die cutter 300. After the processing blank is placed on the lower die cutter 300, the products to be punched on the processing blank are exposed at the relief holes 101. The upper die cutter 200 passes through the relief holes 101 to punch the processing blank sheet 400 at the lower end, thereby separating the products on the processing blank. In this embodiment, the material discharging blocking member 500 is arranged at the central position of the relief hole 101, which can ensure the blocking effect on the material. Since the material discharging blocking member 500 is arranged at the central position of the relief hole 101, correspondingly, the relief groove 201 on the upper die cutter 200 is also formed at the center of the upper die cutter 200, so as to ensure the strength of the punching parts on both sides of the upper die cutter 200 and improve the service life of the upper die cutter 200. The relief holes 101 can also play an auxiliary positioning role for the upper die cutter 200, ensuring that the upper die cutter 200 punches along the positioning holes, so as to accurately punch and separate the materials on the processing blank.

[0042] Optionally, in some embodiments of this embodiment, positioning protrusions are provided at both ends of the die pressing plate 100, and the side walls of the positioning protrusions form protective side walls.

[0043] Please refer to Figure 1 and Figure 2 As shown, in this embodiment, positioning protrusions are provided at both ends of the die pressing plate 100. The positioning protrusions can increase the thickness on both sides of the die pressing plate 100, thereby improving the support strength of the die pressing plate 100 and the service life of the die pressing plate 100. Please refer to Figure 1 As shown, in this embodiment, the fixing holes or fixing grooves for installing the blocking wire can be formed at the positions of the positioning protrusions, so as to avoid affecting the strength of the die pressing plate 100 due to the formation of the fixing holes or fixing grooves. At the same time, since the thickness of the positioning protrusions is larger, fixing holes or fixing grooves with a certain length can be formed, so as to more conveniently pass through and fix both ends of the blocking wire in the fixing holes or fixing grooves.

[0044] In summary, the embodiment of the present utility model provides a punching device, which includes: a die pressing plate 100, an upper die cutter 200 and a lower die cutter 300. The lower die cutter 300 and the die pressing plate 100 are used to fix the processing sheet 400. A retracting groove 201 is provided on the upper die cutter 200, and a material discharging blocking member 500 is arranged on the die pressing plate 100. The material discharging blocking member 500 is located in the retracting groove 201 and is located between the upper die cutter 200 and the processing sheet 400. By arranging the material discharging blocking member 500 between the upper die cutter 200 and the processing sheet 400, after punching the sheet, the material discharging blocking member 500 can block the separated materials, so that the punched product can fall off better, ensuring the quality of the product and improving the service life of the upper die cutter 200 and the lower die cutter 300. Since the upper die cutter 200 moves for punching, in order to avoid interference between the material discharging blocking member 500 and the upper die cutter 200 and affect the normal movement of the upper die cutter 200, the retracting groove 201 is provided on the upper die cutter 200, and the material discharging blocking member 500 can move along the retracting groove 201 to avoid the upper die cutter 200.

[0045] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A punching device, characterized in that: include: A mold pressing plate (100), an upper mold tool (200) and a lower mold tool (300), wherein the lower mold tool (300) and the mold pressing plate (100) are used to fix a processed sheet (400), a retreat groove (201) is provided on the upper mold tool (200), and a material withdrawal blocking member (500) is provided on the mold pressing plate (100), wherein the material withdrawal blocking member (500) is located in the retreat groove (201), and the material withdrawal blocking member (500) is located between the upper mold tool (200) and the processed sheet (400).

2. The punching device according to claim 1, characterized in that: The material stripping blocking member (500) comprises a blocking line, and a fixing hole or a fixing groove is provided on the mold pressing plate (100), and two ends of the blocking line are fixed in the fixing hole or the fixing groove.

3. The punching device according to claim 1, characterized in that: The lower die cutter (300) is provided with a limiting groove, and the limiting groove is used to accommodate the processed sheet (400).

4. The punching device according to claim 1, characterized in that: The lower die cutter (300) is provided with a punching hole (301), and the punching hole (301) corresponds to the position of the material on the processed sheet (400).

5. The punching device according to claim 4, characterized in that: A material collecting box is provided at one end of the lower die cutter (300) away from the upper die cutter (200), and the material collecting box is communicated with the punching hole (301).

6. The punching device according to claim 1, characterized in that: An anti-slip fixing device is provided on the side of the mold pressing plate (100) that contacts the processing sheet (400).

7. The punching device according to claim 2, characterized in that The diameter of the blocking line is m, and the depth of the retreat groove (201) is n, where m≤0.8n.

8. The punching device according to claim 2, characterized in that: The blocking wire is made of diamagnetic material.

9. The punching device according to claim 1, characterized in that: The mold pressing plate (100) is provided with an upper mold tool (200) avoidance hole (101), and the material withdrawal blocking member (500) is located at the center of the avoidance hole (101).

10. The punching device according to claim 1, characterized in that: Positioning protrusions are arranged at both ends of the mold pressing plate (100), and the side walls of the positioning protrusions form protective side walls.

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