Punching needle device with material pressing function

Abstract

The utility model discloses a punching needle device with a material pressing function, which comprises a punching needle main body, a material pressing head is arranged in an inner cavity of the punching needle main body in an ascending and descending sliding manner, the material pressing head forms a sliding-in hidden state and a sliding-out material pressing state relative to the punching needle main body through ascending and descending sliding actions, and when the sliding-in hidden state is switched to the sliding-out material pressing state, the material pressing head can slide out of the punching needle main body. And the pressing head downwards presses a workpiece in the cavity of the stamping die. When the stamping die is opened, a workpiece is pressed through the material pressing head, and the phenomenon that the workpiece is inclined and clamped due to the fact that the stamping needle is adhered to the workpiece is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of punching needles, and in particular relates to a punching needle device with a material pressing function. Background Art

[0002] The punch needle is an important component of the stamping die. During the mold opening process of the stamping process, due to the adhesion between the punch needle and the workpiece, the rising punch needle tends to slightly lift the workpiece, and then the workpiece falls down again. The lifted workpiece is prone to tilt and get stuck in the cavity during the falling process, making it difficult to discharge the workpiece and affecting the normal operation of the stamping. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a punching needle device with a pressing function, which presses the workpiece through a pressing head when the stamping die is opened, to prevent the punching needle from sticking to the workpiece and causing tilting and jamming.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a punching needle device with a pressing function, including a punching needle body, the inner cavity of the punching needle body is provided with a pressing head for ascending and descending sliding movement, the pressing head is configured to slide in and out of a pressing state relative to the punching needle body through ascending and descending sliding movements, and when switching from the sliding in and out pressing state to the sliding out pressing state, the pressing head presses down the workpiece in the cavity of the stamping die.

[0005] Furthermore, a pressing end of the pressing head is provided with an elastic pressing body, and the pressing head elastically presses the workpiece through the elastic pressing body.

[0006] Furthermore, it comprises a lifting drive mechanism corresponding to the pressing head, and the lifting drive mechanism drives the pressing head to switch between a sliding-in hidden state and a sliding-out pressing state.

[0007] Furthermore, the lifting drive mechanism includes a vertical screw rotatably installed on the side of the punch needle body, a transverse connecting rod threadedly connected to the vertical screw, and a servo motor driving the vertical screw to rotate; a vertical guide opening is opened in the inner cavity on the side of the punch needle body, and the transverse connecting rod passes through the vertical guide opening and extends into the inner cavity to be connected to the pressing head.

[0008] Furthermore, the transverse connecting rod is transversely plug-connected to the pressing head.

[0009] Furthermore, a mounting hole and a positioning hole are provided on the punching needle body, and the punching needle body is mounted on the upper template of the stamping die through the positioning hole and the mounting hole.

[0010] Beneficial effect: During the stamping process of the stamping die, the pressing head slides into a hidden state to avoid affecting the normal stamping and die closing operation. When the stamping die is opened, as the punch needle body gradually rises, the pressing head gradually drops and switches to a sliding out pressing state. The workpiece is pressed by the pressing head to avoid the punch needle from sticking to the workpiece and causing tilting and jamming, thereby ensuring normal opening and closing stamping operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 It is a structural schematic diagram of the utility model in which the pressing head is in a sliding and hidden state;

[0012] Attached Figure 2 It is a half-section structural schematic diagram of the utility model in which the pressing head is in a state of sliding out and pressing the material;

[0013] Attached Figure 3 It is a structural schematic diagram of the pressing head and the lifting drive mechanism. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings.

[0015] As attached Figure 1 and attached Figure 2 As shown, a punching needle device with a pressing function includes a punching needle body 1, and an inner cavity 10 of the punching needle body 1 is provided with a pressing head 2 that can slide up and down. The pressing head 2 forms a sliding-in hidden state and a sliding-out pressing state relative to the punching needle body 1 through the sliding-in hidden state and the sliding-out pressing state, and when switching from the sliding-in hidden state to the sliding-out pressing state, the pressing head 2 presses down the workpiece 3 in the stamping die cavity. During the stamping process of the stamping die, the pressing head 2 is in a sliding-in hidden state to avoid affecting the normal stamping and stamping operation. When the stamping die is opened, as the punching needle body 1 gradually rises, the pressing head 2 gradually descends and switches to the sliding-out pressing state. The workpiece is pressed by the pressing head 2 to avoid the punching needle from sticking to the workpiece and causing tilting and jamming, thereby ensuring normal stamping operations of opening and closing the die.

[0016] In order to provide a buffer for the pressing of the pressing head 2 and protect the workpiece 3, and also to avoid the probability of adhesion when the pressing head 2 and the workpiece 3 are separated after the pressing is completed, in the utility model, an elastic body 4 is provided at the pressing end of the pressing head 2, and the pressing head 2 elastically presses the workpiece 3 through the elastic body 4. The elastic pressing of the workpiece 3 by the elastic body 4 not only plays a buffering and protective role, but also prevents the phenomenon of the pressing head 2 sticking to and lifting the workpiece 3.

[0017] Preferably, the elastic body 4 can be an elastic rubber pad.

[0018] As attached Figure 1 and attached Figure 2As shown, the utility model includes a lifting drive mechanism 5 corresponding to the material pressing head 2, and the lifting drive mechanism 5 drives the material pressing head 2 to switch between a sliding into a hidden state and a sliding out of a material pressing state. Figure 3 As shown, the lifting drive mechanism 5 includes a vertical screw 51 rotatably installed on the side of the punch body 1, a transverse connecting rod 52 threadedly connected to the vertical screw 51, and a servo motor 53 driving the vertical screw 51 to rotate; the side conductive inner cavity 10 of the punch body 1 is provided with a vertical guide opening 11, and the transverse connecting rod 52 passes through the vertical guide opening 11 and extends into the inner cavity 10 to be connected with the pressing head 2.

[0019] More specifically, the transverse connecting rod 52 is connected to the material pressing head 2 by plugging, an insertion head 55 is provided at the rod end of the transverse connecting rod 52, a groove 20 is provided on the side of the material pressing head 2, and the insertion head 55 is inserted into the groove 20 to realize the plug-in connection between the transverse connecting rod 52 and the material pressing head 2, which is convenient for assembly. The material pressing head 2 is cylindrical in shape, and the upper and lower ends are chamfered respectively.

[0020] As attached Figure 1 and attached Figure 2 As shown, the punch body 1 is provided with a mounting hole 12 and a positioning hole 13, and the punch body 1 is mounted on the upper template 6 of the stamping die through the positioning hole 13 and the mounting hole 12. The positioning hole 13 is a blind hole, and a protrusion is provided on the upper template 6 corresponding to the blind hole. During the installation process, the punch body 1 can be positioned by the cooperation of the protrusion and the blind hole, and then fixed by the mounting hole 12 which is a through hole with a bolt.

[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A punching needle device with a material pressing function, characterized in that: The invention comprises a punching needle body (1), wherein an inner cavity (10) of the punching needle body (1) is provided with a pressing head (2) which can slide upward and downward. The pressing head (2) forms a sliding-in hidden state and a sliding-out pressing state relative to the punching needle body (1) through the sliding-in hidden state and the sliding-out pressing state. When switching from the sliding-in hidden state to the sliding-out pressing state, the pressing head (2) presses down a workpiece (3) in the cavity of a stamping die.

2. A punching needle device with a material pressing function according to claim 1, characterized in that: The pressing end of the pressing head (2) is provided with an elastic pressing body (4), and the pressing head (2) elastically presses the workpiece (3) via the elastic pressing body (4).

3. The punching needle device with material pressing function according to claim 1, characterized in that: It comprises a lifting drive mechanism (5) corresponding to the material pressing head (2), and the lifting drive mechanism (5) drives the material pressing head (2) to switch between a sliding-in hidden state and a sliding-out material pressing state.

4. A punching needle device with a material pressing function according to claim 3, characterized in that: The lifting drive mechanism (5) comprises a vertical screw (51) rotatably mounted on the side of the punch body (1), a transverse connecting rod (52) threadedly connected to the vertical screw (51), and a servo motor (53) driving the vertical screw (51) to rotate; a vertical guide opening (11) is provided in the side conductive inner cavity (10) of the punch body (1), and the transverse connecting rod (52) passes through the vertical guide opening (11) and extends into the inner cavity (10) to be connected to the pressing head (2).

5. A punching needle device with a material pressing function according to claim 4, characterized in that: The transverse connecting rod (52) is transversely plug-connected to the pressing head (2).

6. A punching needle device with a material pressing function according to any one of claims 1 to 5, characterized in that: The punching needle body (1) is provided with a mounting hole (12) and a positioning hole (13), and the punching needle body (1) is mounted on the upper mold plate (6) of the punching die through the positioning hole (13) and the mounting hole (12).

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