Die convenient to open

Abstract

The utility model discloses a die convenient to open, which belongs to the field of dies and comprises a base and a movable seat, a fixed seat is arranged on the base, and a bottom die is mounted on the fixed seat. By means of the buffering material ejecting structure, in the mold closing process, a first spring and a second spring play a buffering role, direct collision of related structures during mold closing is avoided, the integrity of the mold is guaranteed, and in the mold opening process, the first spring and the second spring can also play a role in assisting mold opening, so that mold opening is more convenient and faster; when the electromagnet is started, the iron plate is attracted to the electromagnet, the two springs are in a compressed state, the ejector plate is made to be lower than the surface of the bottom die, normal placement of a plate is not affected, and after the electromagnet is closed, the ejector plate exerts upward acting force on the plate under the action of the two springs, so that the plate is prevented from falling off. And the plate can be blanked while the mold is opened, so that rapid material taking is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of molds, and in particular to a mold that is easy to open. Background Technology

[0002] Stamping is one of the important methods of sheet metal processing. It relies on a press and dies to apply external force to sheet metal, strip, tube, and profile, causing plastic deformation or separation to obtain workpieces (stamped parts) of the required shape and size. In stamping, the die is the part that ensures the shape of the sheet metal and other materials, so the quality of the die determines the processing effect.

[0003] In existing sheet metal stamping dies, after the sheet metal is stamped, the die opens, and then the ejector mechanism ejects the workpiece. However, this type of stamping die requires two steps to complete the material unloading, which is inconvenient. Furthermore, there is no cushioning structure during the die closing process, and the impact generated during die closing can easily damage the die. Additionally, there is no structure to assist in applying force during die opening, making the opening process inconvenient. Utility Model Content

[0004] The main purpose of this utility model is to provide a mold that is easy to open, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A mold for easy mold opening includes a base and a movable seat. The base is provided with a fixed seat and a bottom mold is installed on the fixed seat. The movable seat is provided with a top mold. A buffer ejector structure is provided between the base and the movable seat. The buffer ejector structure includes a base plate, a fixed rod, a mounting plate, a first spring, a buffer plate, a second spring, and a positioning sleeve.

[0007] Preferably, a guide sleeve is fixed on the base, and a guide rod is installed on the lower surface of the movable seat, with the end of the guide rod passing through the guide sleeve and the base.

[0008] Preferably, a connecting rod is fixed on the movable seat, a stamping cavity is opened on the bottom mold, and a plate is placed on the bottom mold.

[0009] Preferably, the buffer top material structure further includes an electromagnet, an adjusting screw, an iron plate, and a top material plate. The bottom plate is fixedly connected to the fixing rod and is mounted on the base. One end of the mounting plate is sleeved on the fixing rod. The first spring is disposed on the fixing rod and is located between the bottom plate and the mounting plate. The electromagnet is fixed on the mounting plate.

[0010] Preferably, one end of the buffer plate is sleeved on the fixed rod, the adjusting screw is fixedly connected to the iron plate and threadedly connected to the buffer plate, the top plate is fixed on the buffer plate, the second spring is sleeved on the fixed rod and located between the mounting plate and the buffer plate, the positioning sleeve is fixed on the movable seat and sleeved on the fixed rod.

[0011] Compared with the prior art, this utility model has the following beneficial effects: The mold that facilitates mold opening, through the set buffer ejector structure, allows the first and second springs to play a buffering role during the mold closing process, avoiding direct impact between related structures during mold closing and ensuring the integrity of the mold. During mold opening, the first and second springs can also play an auxiliary role in mold opening, making mold opening more convenient and faster. An electromagnet is set on the mounting plate, which works in conjunction with the iron plate, adjusting screw, and ejector plate. When the electromagnet is activated, the iron plate is attracted to the electromagnet, and the two springs are in a compressed state, so that the ejector plate is lower than the bottom mold surface, which does not affect the normal placement of the plate. When the electromagnet is turned off, under the action of the two springs, the ejector plate applies an upward force to the plate, so that the plate can be unloaded at the same time as the mold is opened, which facilitates quick material removal. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention in the mold-opening state when there is a sheet material.

[0013] Figure 2 This is a schematic diagram of the structure of the present invention in the mold-closed state when there is no sheet metal.

[0014] Figure 3 This is a schematic diagram of the buffer top material structure of this utility model.

[0015] In the diagram: 1. Base; 2. Fixed seat; 3. Bottom mold; 4. Stamping cavity; 5. Movable seat; 6. Top mold; 7. Buffer ejector structure; 701. Base plate; 702. Fixed rod; 703. Mounting plate; 704. First spring; 705. Electromagnet; 706. Buffer plate; 707. Adjusting screw; 708. Iron plate; 709. Ejector plate; 710. Second spring; 711. Positioning sleeve; 8. Guide sleeve; 9. Guide rod; 10. Connecting rod; 11. Sheet metal. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-3As shown, a mold for easy mold opening includes a base 1 and a movable seat 5. A fixed seat 2 is provided on the base 1, and a bottom mold 3 is installed on the fixed seat 2. A top mold 6 is provided on the movable seat 5. A buffer ejector structure 7 is provided between the base 1 and the movable seat 5. A guide sleeve 8 is fixed on the base 1. A guide rod 9 is installed on the lower surface of the movable seat 5, and the end of the guide rod 9 passes through the guide sleeve 8 and the base 1. A connecting rod 10 is fixed on the movable seat 5. A stamping cavity 4 is opened on the bottom mold 3, and a plate 11 is placed on the bottom mold 3.

[0018] When stamping sheet metal 11 using a mold, the entire mold is installed on the stamping machine. The connecting rod 10 on the movable seat 5 is connected to the hydraulic cylinder of the stamping machine, and the base 1 is fixed in a suitable position on the stamping machine. After the sheet metal 11 is placed on the bottom mold 3, the buffer ejector structure 7 does not contact the sheet metal 11. After starting the hydraulic cylinder of the stamping machine, the telescopic shaft of the hydraulic cylinder extends, thereby lowering the movable seat 5 through the connecting rod 10. The guide rod 9 on the movable seat 5 moves in the guide sleeve 8 to ensure the stable and smooth descent of the movable seat 5. When the top mold 6 contacts the sheet metal 11, the hydraulic cylinder continues to operate, and the movable seat 5 continues to lower the top mold 6, cooperating with the stamping cavity on the bottom mold 3. 4. The sheet metal 11 is stamped. During this process, the buffer ejector structure 7 acts as a buffer to prevent the top die 6 from colliding violently with the bottom die 3, thus ensuring the integrity of the relevant structures. After stamping is completed, the structure in the buffer ejector structure 7 is activated. The ejector part in the buffer ejector structure 7 contacts the sheet metal 11, and then the mold opening operation is performed. During the mold opening process, the movable seat 5 lifts the top die 6. During this process, the guide rod 9 continues to move along the guide sleeve 8. At the same time, the ejector part in the buffer ejector structure 7 lifts the stamped sheet metal 11, thereby achieving the purpose of unloading. At the same time, the buffer ejector structure 7 can apply an auxiliary force during the mold opening process, making the mold opening more convenient.

[0019] According to the above implementation scheme, the buffer top material structure 7 includes a base plate 701, a fixing rod 702, a mounting plate 703, a first spring 704, a buffer plate 706, a second spring 710, and a positioning sleeve 711. The buffer top material structure 7 also includes an electromagnet 705, an adjusting screw 707, an iron plate 708, and a top material plate 709. The base plate 701 is fixedly connected to the fixing rod 702 and is mounted on the base 1. One end of the mounting plate 703 is sleeved on the fixing rod 702. The first spring 704... A first spring 704 is positioned on a fixed rod 702, with the base plate 701 and mounting plate 703 located between them. An electromagnet 705 is fixed to the mounting plate 703. One end of a buffer plate 706 is sleeved on the fixed rod 702. An adjusting screw 707 is fixedly connected to an iron plate 708 and threadedly connected to the buffer plate 706. A top plate 709 is fixed to the buffer plate 706. A second spring 710 is sleeved on the fixed rod 702, and the second spring 710 is located between the base plate 701 and mounting plate 703. Between the buffer plates 706, the positioning sleeve 711 is fixed on the movable seat 5, and the positioning sleeve 711 is sleeved on the fixed rod 702. Through the buffer ejection structure 7, the first spring 704 and the second spring 710 play a buffering role during the mold closing process, avoiding direct impact between related structures during mold closing and ensuring the integrity of the mold. During mold opening, the first spring 704 and the second spring 710 can also play an auxiliary role in mold opening, making mold opening more convenient and faster. An electromagnetic shielding device is installed on the mounting plate 703. Iron plate 705, used in conjunction with iron plate 708, adjusting screw 707, and top plate 709, is used when electromagnet 705 is activated. Iron plate 708 is attracted to electromagnet 705, and the two springs are in a compressed state, so that top plate 709 is lower than the surface of bottom mold 3, which does not affect the normal placement of plate 11. When electromagnet 705 is turned off, under the action of the two springs, top plate 709 applies an upward force to plate 11, so that plate 11 can be unloaded at the same time as mold opening, which facilitates quick material removal.

[0020] During the stamping of sheet metal 11, in the initial stage, the electromagnet 705 on the mounting plate 703 is activated. The electromagnet 705 applies an electromagnetic force to the iron plate 708, causing the iron plate 708 to be attracted to the electromagnet 705. At this time, the second spring 710 is in a compressed state, and the top plate 709 on the buffer plate 706 is lower than the surface of the bottom mold 3, placing the sheet metal 11 onto the bottom mold 3. Then, the stamping machine is started to perform the stamping operation. The movable seat 5 lowers the top mold 6 to complete the stamping work. During this process, the positioning sleeve 711 on the movable seat 5 moves along... As the fixed rod 702 descends, the positioning sleeve 711 contacts the buffer plate 706, applying a downward force to it. Due to the blocking effect of the adjusting screw 707, the iron plate 708, and the electromagnet 705, the buffer plate 706, along with the mounting plate 703, descends along the fixed rod 702, thereby compressing the first spring 704. The first spring 704 absorbs kinetic energy through compression, thus creating a buffering effect. During this process, the descent stroke of the mounting plate 703 and the buffer plate 706 is consistent. After the stamping is completed, the electromagnet 705 is deactivated. Upon demagnetization, the iron plate 708 is no longer attracted to the electromagnet 705, and the mold opens. During the mold opening process, the positioning sleeve 711 rises, and the first spring 704 and the second spring 710 extend and return to their original positions. Under the action of the two springs, the buffer plate 706 exerts an upward force on the positioning sleeve 711, thereby assisting in the mold opening and making it more convenient. As the two springs extend, the buffer plate 706, along with the ejector plate 709, adjusting screw 707, and iron plate 708, rises along the fixed rod 702 until the ejector plate 709... 9. The buffer plate 706 contacts the lower surfaces of both ends of the workpiece, and then the buffer plate 706, along with the top plate 709, adjusting screw 707, and iron plate 708, continues to rise. The top plate 709 applies an upward force to the workpiece, thereby unloading the workpiece. The workpiece can then be removed. If necessary, the relative position of the iron plate 708 can be adjusted by rotating the adjusting screw 707, thereby changing the relative distance between the buffer plate 706 and the mounting plate 703 during the descent buffering. It is flexible and convenient to use and has high adaptability.

[0021] The foregoing describes the working principle, features, and beneficial effects of this utility model. Those skilled in the art will understand from the foregoing that it does not limit the utility model. The embodiments and description above illustrate the basic principles and features of this utility model. Various changes and improvements can be made to this utility model while remaining consistent with its concept, and all such improvements should fall within the scope of protection claimed by this utility model.

Claims

1. A mold for easy mold opening, comprising a base (1) and a movable seat (5), wherein a fixed seat (2) is provided on the base (1), and a bottom mold (3) is installed on the fixed seat (2), and a top mold (6) is provided on the movable seat (5), characterized in that: A buffer top structure (7) is provided between the base (1) and the movable seat (5), and the buffer top structure (7) includes a base plate (701), a fixing rod (702), a mounting plate (703), a first spring (704), a buffer plate (706), a second spring (710), and a positioning sleeve (711); a guide sleeve (8) is fixed on the base (1), and a guide rod (9) is installed on the lower surface of the movable seat (5), and the end of the guide rod (9) passes through the guide sleeve (8) and the base (1); a connecting rod (10) is fixed on the movable seat (5), a stamping cavity (4) is opened on the bottom mold (3), and a plate (11) is placed on the bottom mold (3); the buffer top structure (7) also includes an electromagnet (705), an adjusting screw (707), an iron plate (708), and a top plate (709), the base plate (701) is fixedly connected to the fixing rod (702), and the base plate (701) is installed on the base. (1) On the mounting plate (703), one end of the mounting plate (703) is sleeved on the fixing rod (702), the first spring (704) is set on the fixing rod (702), and the first spring (704) is located between the base plate (701) and the mounting plate (703), the electromagnet (705) is fixed on the mounting plate (703); one end of the buffer plate (706) is sleeved on the fixing rod (702), and the adjusting screw (707) and the iron plate (708) are connected. The top plate (709) is fixed on the buffer plate (706), and the second spring (710) is sleeved on the fixed rod (702). The second spring (710) is located between the mounting plate (703) and the buffer plate (706). The positioning sleeve (711) is fixed on the movable seat (5) and sleeved on the fixed rod (702).

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