Gasket punching device

Abstract

The utility model relates to the technical field of gasket punching devices, and discloses a gasket punching device which comprises a punching frame and a hydraulic cylinder fixed at the upper end of the punching frame, and further comprises a lower template fixed on the punching frame, the hydraulic cylinder is used for driving an upper die plate with an upper stamping die to press downwards to be in stamping fit with the lower die plate, a lower stamping die with a discharging hole is fixedly arranged on the lower die plate, and the lower stamping die is inserted into the upper stamping die after the upper stamping die is pressed downwards. An upper die inner punch coaxial with the upper punching die is fixedly arranged on the lower end face of the upper die plate, and the upper die inner punch is inserted into the discharging hole. According to the utility model, gasket blanking and gasket inner hole stamping are carried out under the state that a station does not need to be moved, so that the stamping coaxiality is greatly improved, and the phenomenon of eccentricity of the gasket inner hole is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gasket punching devices, especially gasket punching devices. Background Art

[0002] Traditional gasket punching devices adopt a step-by-step process. First, the inner hole of the gasket is punched out, and then the gasket is punched out from the mother material plate. This requires two steps. In this way, the coaxiality of the two punchings needs to be corrected by other alignment components, which greatly increases the volume of the equipment and the process difficulty. Moreover, the thin plate mother material is prone to deformation after the first stamping, making it difficult to perform subsequent alignment. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is: in order to overcome the problems existing above, a gasket punching device is provided, which solves the above problems.

[0004] The utility model solves its technical problem by adopting the following technical solutions:

[0005] The gasket punching device includes a stamping frame and a hydraulic cylinder fixed at the upper end of the stamping frame. It also includes a lower template fixed on the stamping frame. The hydraulic cylinder is used to drive the upper template with an upper punch die to press down to form a stamping fit with the lower template. A lower punch die with a discharge hole is fixedly arranged on the lower template. After the upper punch die presses down, the lower punch die inserts into the upper punch die. And a punch inner head coaxial with the upper punch die is fixedly arranged on the lower end face of the upper template, and the punch inner head inserts into the discharge hole.

[0006] Preferably, the lower end face of the punch inner head protrudes compared with the lower end face of the upper punch die. During stamping, the punch inner head first punches out the inner hole of the gasket, and then punches the gasket off the mother material plate and directly forms it without multiple stampings.

[0007] Preferably, a waste collection basket is slidably pulled on the stamping frame to collect the punching waste in the middle of the gasket.

[0008] Preferably, a spring is arranged in the upper template, and both ends of the spring are fixedly connected with the upper template and a material ejecting rod inserted in the upper template respectively. When the upper punch die presses down, the material ejecting rod retreats to leave a stamping space for the gasket. When the upper template rises, in order to prevent the gasket from getting stuck in the inner ring groove of the upper punch die, the material ejecting rod pushes the gasket downward.

[0009] Preferably, in order to facilitate the collection of gasket products, an air blowing port communicated with the air source is fixedly arranged on the side of the stamping frame, which blows the gasket into the finished product collection basket arranged on the side of the stamping frame after each punching is completed.

[0010] Preferably, a guide rod is fixedly provided on the upper template. The guide rod is inserted into the lower template, and an external spring is sleeved outside the guide rod to ensure the coaxiality of each downward press of the upper template.

[0011] The advantages and positive effects of the present utility model are:

[0012] The processes of punching the gasket are integrated together, effectively reducing the volume of the punching device.

[0013] Placing the gasket blanking and the inner hole stamping of the gasket in a state where the working station does not need to be moved greatly improves the coaxiality of stamping and avoids the phenomenon of eccentricity of the inner hole of the gasket.

[0014] The waste materials and finished products are convenient to collect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is Figure 1 the structural schematic diagram in

[0018] Figure 3 is Figure 2 the enlarged internal structural schematic diagram of the upper template and the upper punching die in

[0019] The reference numerals in the drawings are described separately as follows: 10, upper template; 11, spring; 12, stripper rod; 13, upper punching die; 14, inner punch in the upper die; 15, hydraulic cylinder; 16, external spring; 17, guide rod; 18, lower template; 19, waste collection basket; 21, lower punching die; 22, discharge hole; 23, air blowing port; 24, finished product collection basket; 25, stamping frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Now, the present utility model will be further described in detail in conjunction with the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model. The following is a further detailed description of the embodiments of the present utility model in conjunction with the drawings:

[0021] As Figures 1-3As shown in the figure, the gasket punching device of the present utility model includes a stamping frame 25 and a hydraulic cylinder 15 fixed to the upper end of the stamping frame 25. It further includes a lower template 18 fixed to the stamping frame 25. The hydraulic cylinder 15 is used to drive the upper template 10 with an upper punch die 13 to press down to form a stamping fit with the lower template 18. A lower punch die 21 with a discharge hole 22 is fixedly arranged on the lower template 18. After the upper punch die 13 presses down, the lower punch die 21 is inserted into the upper punch die 13, and an upper die inner punch 14 coaxial with the upper punch die 13 is fixedly arranged on the lower end face of the upper template 10. The upper die inner punch 14 is inserted into the discharge hole 22.

[0022] Preferably, the lower end face of the upper die inner punch 14 protrudes compared with the lower end face of the upper punch die 13. During the stamping process, the upper die inner punch 14 first punches out the inner hole of the gasket, and then punches the gasket off the mother material plate and directly forms it without multiple stampings.

[0023] Preferably, a waste collection basket 19 is slidably pulled on the stamping frame 25 for collecting the punching waste in the middle of the gasket.

[0024] Preferably, a spring 11 is arranged in the upper template 10, and both ends of the spring 11 are fixedly connected to the upper template 10 and a stripping rod 12 inserted into the upper template 10 respectively. When the upper punch die 13 presses down, the stripping rod 12 retreats to leave a stamping space for the gasket. When the upper template 10 rises, in order to prevent the gasket from getting stuck in the inner ring groove of the upper punch die 13, the stripping rod 12 pushes the gasket downward.

[0025] Preferably, in order to facilitate the collection of gasket products, an air blowing port 23 communicated with the air source is fixedly arranged on the side of the stamping frame 25, which blows the gasket into the finished product collection basket 24 arranged on the side of the stamping frame 25 after each punching is completed.

[0026] Preferably, a guide rod 17 is fixedly arranged on the upper template 10. The guide rod 17 is inserted into the lower template 18, and an external spring 16 is sleeved on the guide rod 17 to ensure the coaxiality of each downward press of the upper template 10.

[0027] It should be emphasized that the embodiments described in the present utility model are illustrative rather than restrictive. Therefore, the present utility model is not limited to the embodiments described in the specific implementation manners. Any other implementation manners obtained by those skilled in the art according to the technical solutions of the present utility model also belong to the protection scope of the present utility model.

Claims

1. Gasket punching device, comprising a stamping frame (25) and a hydraulic cylinder (15) fixed to the upper end of the stamping frame (25), characterized in that: It further includes a lower template (18) fixed on the stamping frame (25). The hydraulic cylinder (15) is used to drive the upper template (10) with the upper punching die (13) to press down to form a stamping fit with the lower template (18). A lower punching die (21) with a discharge hole (22) is fixedly arranged on the lower template (18). After the upper punching die (13) presses down, the lower punching die (21) is inserted into the upper punching die (13). And a punch inner punch (14) coaxial with the upper punching die (13) is fixedly arranged on the lower end face of the upper template (10), and the punch inner punch (14) is inserted into the discharge hole (22).

2. The gasket punching device according to claim 1, wherein: The lower end face of the punch inner punch (14) protrudes compared with the lower end face of the upper punching die (13). During stamping, the punch inner punch (14) first punches out the inner hole of the gasket, and then punches the gasket off the mother material plate and directly forms it without multiple stampings.

3. The gasket punching device according to claim 2, characterized in that: A waste collection basket (19) is slidably arranged on the stamping frame (25) for collecting the punched waste in the middle of the gasket.

4. The gasket punching device according to claim 3, wherein: A spring (11) is arranged in the upper template (10), and both ends of the spring (11) are fixedly connected to the upper template (10) and a stripper rod (12) inserted in the upper template (10). When the upper punching die (13) presses down, the stripper rod (12) retreats to leave a stamping space for the gasket. When the upper template (10) rises, in order to prevent the gasket from getting stuck in the inner ring groove of the upper punching die (13), the stripper rod (12) pushes the gasket out downward.

5. The gasket punching device according to claim 4, characterized in that: In order to facilitate the collection of gasket products, an air blowing port (23) communicated with the air source is fixedly arranged on the side of the stamping frame (25), and it blows the gasket into the finished product collection basket (24) arranged on the side of the stamping frame (25) after each punching is completed.

6. The gasket punching device according to claim 5, characterized in that: A guide rod (17) is fixedly arranged on the upper template (10), the guide rod (17) is inserted into the lower template (18), and an external spring (16) is sleeved outside the guide rod (17) to ensure the coaxiality of each downward press of the upper template (10).

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