Punching device

Abstract

The utility model discloses a trepanning device which comprises a press machine, a lower pressing die and an upper pressing die and further comprises a medal-shaped groove, an air cylinder and an arc-shaped limiting block, the lower pressing die is arranged on a stamping table of the press machine, and one end of the bottom of the lower pressing die is rotationally connected with the stamping table of the press machine through a hinge. An upper pressing die is arranged at the top, away from the lower pressing die, of the press machine, a medal-shaped groove is formed in the top in the lower pressing die, a hole groove is formed in the bottom of one end in the medal-shaped groove in a penetrating mode, and arc-shaped limiting blocks corresponding to the groove shape are arranged on the two sides of the medal-shaped groove respectively. The device is simple in structure and convenient to operate, facilitates personnel to better take out the perforated medal, improves convenience of trepanning, machining and discharging of the medal, and solves the problems that after an existing medal is put into a press machine type groove for punching machining, the personnel need to bend down to stretch the sight into a press machine to observe the medal, then the medal is pinched and taken through the hand, and the machining efficiency and safety are low.

Description

Technical Field

[0001] The utility model relates to the technical field of medal processing, in particular to a hole-opening device. Background Art

[0002] Medals are generally made of metal materials. During batch processing, a press is generally used to continuously punch holes in the medal blanks using a stamping method.

[0003] However, the existing presses for stamping medals usually have a vertical movement between the dies. At the same time, because the punching grooves are located inward of the press platform, it is inconvenient for workers to load and unload the medals. Frequently putting their eyes and hands into the press can easily increase the safety risks of processing.

[0004] Existing medal punching systems have the following drawbacks: After punching the medals into the die slots of a press, a worker must bend down and peer into the press to see the medals, then manually grasp and remove them, resulting in low processing efficiency and safety. To address this, we propose a punching device. Utility Model Content

[0005] The main purpose of the present invention is to provide a hole-opening device that can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A hole-opening device comprises a press, a lower die and an upper die, and also comprises a medal-shaped groove, a cylinder and an arc-shaped limit block, the lower die is arranged on the stamping table of the press, and one end of the bottom of the lower die is rotatably connected to the stamping table of the press by a hinge, the press is provided with an upper die away from the top of the lower die, a medal-shaped groove is provided on the top of the lower die, a hole groove is provided through the bottom of one end of the medal-shaped groove, arc-shaped limit blocks of corresponding groove types are respectively provided on both sides of the medal-shaped groove, guide grooves corresponding to the arc-shaped limit blocks are provided on both sides of the top of the lower die, and transverse pneumatic push rods are respectively installed on both sides of the lower die, and the output ends of the transverse pneumatic push rods are respectively installed and connected with the tails of the arc-shaped limit blocks at corresponding positions.

[0008] Furthermore, a lower pneumatic push rod is arranged at an inclined shape at the bottom of the press, the sleeve cylinder of the lower pneumatic push rod is rotatably connected to the press through a rotating shaft, and the output end of the lower pneumatic push rod is rotatably connected to the other end of the bottom of the lower die through a rotating shaft.

[0009] Furthermore, a blanking guide plate is welded to one end of the lower die, and a feed end of the blanking guide plate is connected to a discharge end of the medal-shaped groove.

[0010] Furthermore, a cylinder is installed on the top of the press through bolts, and the output end of the cylinder is installed and connected to the upper die.

[0011] Compared with the prior art, the utility model has the following beneficial effects: through the assembly consisting of a press, a lower pressing die, an upper pressing die, a medal groove, a cylinder and an arc-shaped limit block, a medal hole-opening mechanism with convenient loading and unloading is provided for medal hole-opening processing personnel; by adding a set of opening and closing mechanisms to the tail of the groove for medal hole-opening processing, and providing a set of inclined pushing mechanisms at the bottom of the medal hole-opening die, the medal can be inclinedly discharged after the hole-opening is completed, which helps personnel to better remove the medal after the hole is opened, improves the convenience of medal hole-opening processing and unloading, and solves the problem that after the medal is punched in the press groove, the personnel need to bend down and look into the press to observe the medal, and then use their hands to grab the medal, resulting in low processing efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a hole-opening device of the utility model.

[0013] Figure 2 This is a schematic diagram of the extended structure of the arc-shaped limit block of a hole-opening device of the utility model.

[0014] Figure 3 This is a schematic diagram of the retracted structure of the arc-shaped limit block of a hole-opening device of the utility model.

[0015] Figure 4 This is a schematic diagram of the bottom of an upper die of a hole-opening device of the utility model.

[0016] In the figure: 1. Press; 2. Lower die; 3. Upper die; 4. Medal-shaped groove; 5. Guide groove; 6. Arc limit block; 7. Horizontal pneumatic push rod; 8. Unloading guide plate; 9. Lower pneumatic push rod; 10. Cylinder; 11. Hole groove. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1-4As shown, a hole-opening device includes a press 1, a lower die 2 and an upper die 3, and also includes a medal-shaped groove 4, a cylinder 10 and an arc-shaped limit block 6. The lower die 2 is set on the punching table of the press 1, and one end of the bottom of the lower die 2 is rotatably connected to the punching table of the press 1 through a hinge. The press 1 is provided with an upper die 3 at the top away from the lower die 2. A medal-shaped groove 4 is opened at the top of the lower die 2, and a hole groove 1 is opened through the bottom of one end of the medal-shaped groove 4. 1, the hole groove 11 is connected with the bottom of the press 1 to help the waste generated after punching the hole to be discharged from the bottom of the press 1, the medal-shaped groove 4 is provided with arc-shaped limit blocks 6 of corresponding groove types on both sides, and the top of the lower die 2 is provided with guide grooves 5 corresponding to the arc-shaped limit blocks 6 on both sides. Horizontal pneumatic push rods 7 are installed on both sides of the lower die 2, and the output ends of the horizontal pneumatic push rods 7 are respectively installed and connected with the tails of the arc-shaped limit blocks 6 at the corresponding positions.

[0019] Among them, a lower pneumatic push rod 9 is arranged at an inclined shape at the bottom of the press 1. The cylinder of the lower pneumatic push rod 9 is rotatably connected to the press 1 through a rotating shaft, and the output end of the lower pneumatic push rod 9 is rotatably connected to the other end of the bottom of the lower die 2 through a rotating shaft.

[0020] One end of the lower die 2 is welded with a blanking guide plate 8 , and the feed end of the blanking guide plate 8 is connected to the discharge end of the medal-shaped groove 4 .

[0021] A cylinder 10 is installed on the top of the press 1 via bolts, and the output end of the cylinder 10 is installed and connected to the upper die 3.

[0022] The cylinder 10, the transverse pneumatic push rod 7 and the lower pneumatic push rod 9 are all equipped with foot switches. The processing personnel complete the extension and retraction operations of the output ends of the cylinder 10, the transverse pneumatic push rod 7 and the lower pneumatic push rod 9 by stepping on the foot switches, or the press 1 is equipped with a PLC controller to automatically control the extension and retraction of the cylinder 10, the transverse pneumatic push rod 7 and the lower pneumatic push rod 9 based on the PLC. The specific control method is set according to actual processing requirements.

[0023] It should be noted that the present invention is a hole-punching device. When working, the personnel push the lower die 2 through the lower pneumatic push rod 9, so that the lower die 2 is flipped into an inclined shape, so that the medal groove 4 on the lower die 2 is closer to the outside of the press 1, which is more convenient for the processing personnel to observe the medal groove 4. Then, the medal blank that needs to be punched is placed in the medal groove 4, and the lower pneumatic push rod 9 drives the lower die 2 to return to its original position and pushes the upper die 3 downward through the cylinder 10, so that the upper die 3 punches the medal blank placed in the lower die 2, and the waste after punching will be discharged from the hole groove 11 to the bottom of the press 1. After the die 3 returns to its position, the lower pressing die 2 is pushed again by the lower pneumatic push rod 9 to make the lower pressing die 2 tilted. At the same time, the horizontal pneumatic push rod 7 pulls back the arc limit block 6 to retract the arc limit block 6 into the guide groove 5, so that the bottom of the medal-shaped groove 4 is opened, so that the medals with punched holes in the medal-shaped groove 4 slide down and are discharged into the blanking guide plate 8 according to the tilt angle. Then the workers who make holes can easily take the medals discharged from the blanking guide plate 8 after the holes are punched. The operation is cyclical in sequence, which is flexible and convenient to use. During the processing, it can effectively reduce the difficulty for workers to observe the inside of the press 1 and load and unload materials, thereby greatly ensuring the safety of the processing.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A hole-opening device comprising a press (1), a lower die (2) and an upper die (3), characterized in that: The invention also includes a medal-shaped groove (4), a cylinder (10) and an arc-shaped limit block (6). The lower die (2) is arranged on the punching table of the press (1). One end of the bottom of the lower die (2) is rotatably connected to the punching table of the press (1) through a hinge. The press (1) is provided with an upper die (3) away from the top of the lower die (2). The top of the lower die (2) is provided with a medal-shaped groove (4). A hole groove (11) is provided through the bottom of one end of the medal-shaped groove (4). Arc-shaped limit blocks (6) of corresponding groove types are respectively provided on both sides of the medal-shaped groove (4). Guide grooves (5) corresponding to the arc-shaped limit blocks (6) are provided on both sides of the top of the lower die (2). Transverse pneumatic push rods (7) are respectively installed on both sides of the lower die (2). The output ends of the transverse pneumatic push rods (7) are respectively installed and connected to the tails of the arc-shaped limit blocks (6) at corresponding positions.

2. A hole-opening device according to claim 1, characterized in that: A lower pneumatic push rod (9) is arranged at an inclined position at the bottom of the press (1); the sleeve cylinder of the lower pneumatic push rod (9) is rotatably connected to the press (1) via a rotating shaft; and the output end of the lower pneumatic push rod (9) is rotatably connected to the other end of the bottom of the lower die (2) via a rotating shaft.

3. The hole-opening device according to claim 1, characterized in that: One end of the lower pressing die (2) is welded to a blanking guide plate (8), and the feeding end of the blanking guide plate (8) is connected to the discharge end of the medal-shaped groove (4).

4. The hole-opening device according to claim 1, characterized in that: A cylinder (10) is installed on the top of the press (1) via bolts, and the output end of the cylinder (10) is installed and connected to the upper die (3).

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