Adjusting and anti-loosening device for die stripper plate

Abstract

The utility model belongs to the technical field of stripper plates, and discloses a mold stripper plate adjusting and locking device which comprises an upper mold. The axis position of the upper die is connected with a punch, and the punch has the freedom degree in the axis direction. The lower portion of the upper die is connected with a stripping ring through a bolt, the bolt is matched with the double nuts, the stripping ring is subjected to the acting force of the bolt from bottom to top, when the punch is pressed downwards, the punch penetrates out downwards through the stripping ring, when the punch is reset, the punch is reset upwards through the stripping ring, and the stripping ring scrapes off foreign matter on the surface of the punch. A plurality of fan-shaped plates are inserted in the circumferential direction of the upper mold, and the inserted ends of the upper mold and the fan-shaped plates are limited through locking nuts; the sector plate is in threaded connection with a plurality of downward ejector pins used for pressing workpieces.

Description

Technical Field

[0001] The utility model belongs to the technical field of stripper plates, and in particular relates to a mold stripper plate adjusting and anti-loosening device. Background Art

[0002] The punch of some stamping dies is fixed on the upper die, which drives the punch downward and cooperates with the die core of the lower die to stamp the material. Since the punch penetrates the material or is wrapped by the material during the stamping process, the material often rises with the punch after the die is opened. A stripper plate needs to be installed to separate the material from the punch through the insert in the stripper plate. The stripper plate can also press the material when the die is closed, improving the position stability of the material during stamping.

[0003] In the actual production process, the stripper plate needs to be repeatedly lifted and lowered, which causes great impact and vibration and is easy to loosen. In addition, the stripper plate also plays a role in pressing and fixing the workpiece. However, due to the different shapes of different workpieces, the stripper plate has low universality. Utility Model Content

[0004] In view of the problems raised by the above background technology, the purpose of the utility model is to provide a mold stripper plate adjustment and anti-loosening device.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] A mold stripper plate adjustment and anti-loosening device, comprising an upper mold;

[0007] The axial position of the upper die is connected to a punch, and the punch has a degree of freedom in the axial direction;

[0008] The lower part of the upper die is connected to a stripping ring by bolts, and the bolts cooperate with double nuts. The stripping ring is subjected to the upward force of the bolts. When the punch is pressed downward, it passes downward through the stripping ring. When the punch is reset, it resets upward through the stripping ring. The stripping ring scrapes off foreign matter on the surface of the punch.

[0009] A plurality of sector plates are inserted in the circumferential direction of the upper mold, and the plug-in ends of the upper mold and the sector plates are limited by locking nuts;

[0010] The sector plate is threadedly connected to a plurality of downwardly directed ejector pins for pressing the workpiece.

[0011] It is further defined that the upper mold is provided with a base plate, a sleeve, a folded edge, a rod group, and a hollow bracket. The sleeve is located on the lower surface of the base plate, the folded edge is located at the lower pipe mouth of the sleeve, the rod group is distributed on the outer circle of the folded edge in the form of a circular array, and the hollow bracket is located on the lower surface of the folded edge. The hollow bracket is provided with a groove for accommodating a stripping ring. With such a structural design, the base plate is used to connect with other components, such as components that drive the upper mold to move, the sleeve is used to protect the punch and provide space for the punch to move up and down, the folded edge provides a position for installing the rod group and the hollow bracket, the rod group is used to plug in the fan-shaped plate, and the hollow bracket is used to install the stripping ring on the one hand, and on the other hand, its hollow shape facilitates the cleaning of foreign matter scraped off by the punch.

[0012] It is further defined that the plug rod group includes two plug rods. With such a structural design, the two plug rods can limit the rotational freedom of the fan-shaped plate after being plugged into the fan-shaped plate.

[0013] It is further defined that the fan-shaped plate is provided with a socket for cooperating with the insertion rod. With such a structural design, the socket is used to cooperate with the insertion rod.

[0014] It is further defined that a protective ring is connected between the stripper ring and the groove to prevent the contact surface from being crushed. With such a structural design, the protective ring lies between the stripper ring and the groove to avoid direct contact between the stripper ring and the groove surface, which would result in the stripper ring being unable to be correctly installed after the groove is crushed.

[0015] It is further defined that the sector plate is provided with a screw hole for cooperating with the ejector pin, and an extension tube with an internal thread is provided at the position corresponding to the screw hole. With such a structural design, the extension tube can expand the cooperating surface with the ejector pin and improve the stability of the ejector pin.

[0016] It is further defined that the ejector pin is provided with a threaded section and a handle. With such a structural design, the threaded section is used to cooperate with the screw hole, and the handle is used to apply a force in a circular rotation direction.

[0017] Beneficial effects of the utility model:

[0018] 1. Reduce the force applied to the bolts and double nuts, improve the stability of the connection, and avoid the loosening of the stripping ring;

[0019] 2. The axial height of the ejector pin is adjustable, which can greatly adapt to workpieces with different shapes and contours, and better play a role in clamping and fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0021] Figure 1 It is a structural schematic diagram of an embodiment of a mold stripper plate adjusting and anti-loosening device of the utility model;

[0022] Figure 2 The utility model is a mold stripping plate adjusting and anti-loosening device embodiment. Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 It is a top view of the cooperation between the sector plate and the insertion rod group in an embodiment of a mold stripper plate adjustment and anti-loosening device of the utility model;

[0024] Figure 4 It is a structural schematic diagram of an upper mold in an embodiment of a mold stripper plate adjustment and anti-loosening device of the utility model;

[0025] Figure 5 It is a structural schematic diagram of an ejector pin in an embodiment of a mold stripper plate adjustment and anti-loosening device of the utility model;

[0026] The main component symbols are described as follows:

[0027] 1. Upper mold; 11. Base plate; 12. Sleeve; 13. Folding edge; 14. Insert rod group; 15. Hollow bracket; 151. Groove;

[0028] 2. Punch;

[0029] 3. Stripping ring;

[0030] 4. Protective ring;

[0031] 51. Bolt; 52. Double nut;

[0032] 6. Sector plate;

[0033] 7. Lock the nut;

[0034] 8. Ejector pin; 81. Threaded section; 82. Handle. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0036] like Figure 1-5 As shown, a mold stripper plate adjusting and anti-loosening device of the utility model comprises an upper mold 1;

[0037] The upper die 1 is connected to a punch 2 at its axial position, and the punch 2 has the degree of freedom in the axial direction;

[0038] The lower part of the upper die 1 is connected to the stripping ring 3 by a bolt 51, and the bolt 51 cooperates with the double nut 52. The stripping ring 3 is subjected to the upward force of the bolt 51. When the punch 2 is pressed downward, it passes downward through the stripping ring 3. When the punch 2 is reset, it is reset upward through the stripping ring 3. The stripping ring 3 scrapes off foreign matter on the surface of the punch 2.

[0039] A plurality of sector plates 6 are inserted in the circumferential direction of the upper mold 1, and the plug-in ends of the upper mold 1 and the sector plates 6 are limited by locking nuts 7;

[0040] The sector plate 6 is threadedly connected with a plurality of downwardly directed ejector pins 8 for pressing the workpiece.

[0041] In this embodiment:

[0042] In order to provide anti-loosening protection for the bolt 51 fixing the stripping ring 3, on the one hand, a double nut 52 is provided, and the double nut 52 has an anti-loosening function. On the other hand, the stripping ring 3 is installed below the upper mold 1. When the stripping ring 3 is scraped, the direction of the reaction force on the stripping ring 3 is from bottom to top, and the stripping ring 3 is pressed toward the upper mold 1. The reaction force of scraping is not borne by the bolt 51 and the double nut 52. Therefore, the connection between the bolt 51 and the double nut 52 is not easily affected by the scraping effect, thereby improving the stability of the connection.

[0043] In order to improve the universality of workpieces of different shapes, a fan-shaped plate 6 and an ejector pin 8 are provided. Since different workpieces have different shapes and different heights of contours, the ejector pin 8 is height-adjusted in the form of a thread. The ejector pin 8 can be rotated to move upward or downward relative to the fan-shaped plate 6. Each ejector pin 8 is adjusted downward to contact with the workpiece, so that it can maintain close contact with the workpiece when the upper mold 1 is pressed down.

[0044] The sector plate 6 is installed by inserting and locking the nut 7, which is convenient for later replacement and maintenance.

[0045] Preferably, the upper mold 1 is provided with a base plate 11, a sleeve 12, a folded edge 13, a plug rod group 14, and a hollow bracket 15. The sleeve 12 is located on the lower surface of the base plate 11, the folded edge 13 is located at the lower tube mouth of the sleeve 12, the plug rod group 14 is distributed in the outer ring of the folded edge 13 in the form of a circular array, and the hollow bracket 15 is located on the lower surface of the folded edge 13. The hollow bracket 15 is provided with a groove 151 for accommodating the stripping ring 3. With such a structural design, the base plate 11 is used to connect with other components, such as components that drive the upper mold 1 to move, the sleeve 12 is used to protect the punch 2 and provide space for the punch 2 to move up and down, the folded edge 13 provides a position for installing the plug rod group 14 and the hollow bracket 15, the plug rod group 14 is used to plug the fan-shaped plate 6, and the hollow bracket 15 is used to install the stripping ring 3 on the one hand, and on the other hand, its hollow shape is convenient for cleaning foreign matter scraped off by the punch 2. In fact, other structural shapes of the upper mold 1 can also be considered according to specific circumstances.

[0046] Preferably, the plug rod group 14 includes two plug rods. With such a structural design, the two plug rods can limit the rotational freedom of the sector plate 6 after being plugged with the sector plate 6. In fact, other structural shapes of the plug rod group 14 can also be considered according to specific circumstances.

[0047] Preferably, the fan-shaped plate 6 is provided with a socket for cooperating with the plunger, and in such a structural design, the socket is used to cooperate with the plunger. In fact, other structural shapes of the fan-shaped plate 6 can also be specifically considered according to specific circumstances.

[0048] Preferably, a protective ring 4 is connected between the stripping ring 3 and the groove 151 to prevent the contact surface from collapsing. In this structural design, the protective ring 4 lies between the stripping ring 3 and the groove 151 to prevent the stripping ring 3 from directly contacting the groove 151 surface, which would cause the stripping ring 3 to be unable to be properly installed after the groove 151 is crushed. In fact, other protective structures can also be considered according to specific circumstances.

[0049] Preferably, the sector plate 6 is provided with a screw hole for cooperating with the ejector pin 8, and an extension tube with an internal thread is provided at the position corresponding to the screw hole. With such a structural design, the extension tube can expand the matching surface with the ejector pin 8 and improve the stability of the ejector pin 8. In fact, other structural shapes of the sector plate 6 can also be considered according to specific circumstances.

[0050] Preferably, the ejector pin 8 is provided with a threaded section 81 and a handle 82. In this structural design, the threaded section 81 is used to cooperate with the screw hole, and the handle 82 is used to apply a force in the circumferential rotation direction. In fact, other structural shapes of the ejector pin 8 can also be considered according to specific circumstances.

[0051] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A mold stripper plate adjustment and anti-loosening device, characterized in that: It comprises an upper mold (1); The upper die (1) is connected to a punch (2) at an axial position, and the punch (2) has a degree of freedom in the axial direction; The lower part of the upper mold (1) is connected to a stripping ring (3) via a bolt (51), and the bolt (51) cooperates with a double nut (52). The stripping ring (3) is subjected to the upward force of the bolt (51). When the punch (2) is pressed downward, it passes downward through the stripping ring (3). When the punch (2) is reset, it resets upward through the stripping ring (3). The stripping ring (3) scrapes off foreign matter on the surface of the punch (2). A plurality of sector plates (6) are inserted in the circumferential direction of the upper mold (1), and the insertion ends of the upper mold (1) and the sector plates (6) are limited by locking nuts (7); The sector plate (6) is threadedly connected to a plurality of downwardly directed ejector pins (8) for pressing the workpiece.

2. A mold stripper plate adjustment and anti-loosening device according to claim 1, characterized in that: The upper mold (1) is provided with a base plate (11), a sleeve (12), a folded edge (13), an insertion rod group (14), and a hollow bracket (15); the sleeve (12) is located on the lower surface of the base plate (11); the folded edge (13) is located at the lower pipe mouth of the sleeve (12); the insertion rod group (14) is distributed on the outer circle of the folded edge (13) in the form of a circular array; the hollow bracket (15) is located on the lower surface of the folded edge (13); and the hollow bracket (15) is provided with a groove (151) for accommodating a stripping ring (3).

3. A mold stripper plate adjustment and anti-loosening device according to claim 2, characterized in that: The insertion rod group (14) comprises two insertion rods.

4. A mold stripper plate adjustment and anti-loosening device according to claim 3, characterized in that: The sector plate (6) is provided with an insertion hole for cooperating with the insertion rod.

5. A mold stripper plate adjustment and anti-loosening device according to claim 4, characterized in that: A protection ring (4) is also connected between the stripping ring (3) and the groove (151) to prevent the contact surface from being crushed.

6. A mold stripper plate adjustment and anti-loosening device according to claim 5, characterized in that: The sector plate (6) is provided with a screw hole for cooperating with the ejector pin (8), and an extension tube with an internal thread is provided at a position corresponding to the screw hole.

7. A mold stripper plate adjustment and anti-loosening device according to claim 6, characterized in that: The ejector pin (8) is provided with a threaded section (81) and a handle section (82).

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