Novel die steel for shearing tool

Abstract

The utility model belongs to the technical field of die steel, and particularly relates to novel die steel for a shearing cutter, the novel die steel comprises a base, a forming die and a movable die, the top of the base is provided with a cooling groove with the size larger than that of the forming die, the forming die is fixedly installed at the center of the cooling groove, and the top of the forming die is provided with a cutter die groove; and a rear frame is fixedly installed on the back face of the base, the movable mold is installed on the rear frame in a sliding mode and located over the forming mold, and cooling boxes are embedded in the two sides of the base correspondingly. According to the utility model, after die assembly, molten metal for manufacturing the shearing tool is injected into the tool die cavity through the liquid injection port, in the downward moving process of the lifting block, the additional plate moves downwards along with the lifting block and extrudes the T-shaped sliding rod, so that cooling liquid in the cooling box is fed into the cooling groove through the equal-through inclined hole, and the cooling liquid is cooled through heat conduction of the cooling liquid; and in cooperation with the design of the expanded face flow holes, the contact area between the cutting tool and liquid is increased, and therefore the cooling effect is improved.

Description

Technical Field

[0001] The utility model relates to a die steel, in particular to a new die steel for shearing tools. Background Art

[0002] Tool forming molds are molds for mass production of tools, especially for the manufacture of shearing tools. The tool blanks formed by tool forming molds need to be polished and sharpened before they can be put into use. When the existing tool forming molds are used, after the molten metal is injected into the mold, the mold can be opened and the tool can be taken out of the mold after the molten metal is cooled. However, when the tool forming molds are cooled, the heat conduction is not uniform, which makes it easy for sand holes to form on the surface of the tool, affecting the quality of tool forming. Utility Model Content

[0003] The main purpose of the present disclosure is to provide a new die steel for shearing tools to effectively solve the problems raised by the inventor in the above background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A new type of mold steel for shearing tools comprises a base, a forming mold and a movable mold. A cooling groove larger than the forming mold is provided on the top of the base. The forming mold is fixedly installed at the center of the cooling groove, and a tool mold groove is provided on the top of the forming mold. A rear frame is fixedly installed on the back of the base, and the movable mold is slidably installed on the rear frame, and the movable mold is located directly above the forming mold. Cooling boxes are embedded on both sides of the base, and a drain pipe leading to the cooling groove is fixedly connected to the front of the base, and the drain pipe is adapted to be equipped with a pipe cap.

[0006] Preferably, a piston is sealingly and slidably installed inside the cooling box, and a T-shaped slide rod is fixedly connected to the top of the piston. The upper end of the T-shaped slide rod movably passes through the top plate of the cooling box, and the side wall of the cooling groove is provided with an equal-through inclined hole, and the lower end of the equal-through inclined hole leads to the cooling box.

[0007] Preferably, a Z-axis slide groove is provided on the rear frame, and a lifting block is slidably installed in the Z-axis slide groove, the movable mold is fixedly installed at the lower end of the front side of the lifting block, both ends of the front side of the lifting block are fixedly connected with an additional plate, and the T-shaped slide bar is located below the external plate.

[0008] Preferably, a screw is rotatably installed in the Z-axis slide slot, the lifting block is threadedly installed on the screw, a servo motor is fixedly installed on the top of the rear frame, and the top end of the screw is fixedly connected to the output shaft of the servo motor.

[0009] Preferably, a plurality of expansion holes are provided inside the molding die, and each of the expansion holes is communicated with the cooling groove.

[0010] Preferably, a liquid injection port is provided on the movable mold, and the lower end of the liquid injection port faces the tool mold groove.

[0011] In view of this, compared with the prior art, the beneficial effects of the utility model are:

[0012] In the present application, the servo motor drives the screw to rotate, so that the lifting block can move down along the screw, and then the movable mold moves downward until the mold is closed with the forming mold, and the metal liquid used to manufacture the shearing tool is poured into the tool mold groove from the injection port. During the downward movement of the lifting block, the external plate moves downward accordingly and squeezes the T-shaped slide bar to send the coolant in the cooling box into the cooling tank through the equal-pass inclined hole. The shearing tool in the tool mold groove is cooled and formed by heat conduction of the coolant. The design of the expanded flow hole is used to increase the contact area with the liquid to improve the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure shows a schematic diagram of a new die steel for shearing tools provided by the utility model;

[0014] Figure 2 The figure shows a cross-sectional view of a new type of die steel for shearing tools provided by the utility model;

[0015] Figure 3 Shown is a top view of the forming die;

[0016] Figure 4 Shown Figure 2 Schematic diagram of the middle movable mold after it moves downward.

[0017] icon:

[0018] 1-base; 101-cooling groove; 102-equal-through inclined hole; 103-drain pipe; 2-molding mold; 201-tool mold groove; 202-expansion flow hole; 3-rear frame; 4-movable mold; 401-liquid injection port; 5-cooling box; 6-piston; 7-T-shaped slide bar; 8-lifting block; 9-external plate; 10-Z-axis slide groove; 11-screw rod; 12-servo motor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 , the utility model provides the following embodiments:

[0021] A new type of mold steel for shearing tools comprises a base 1, a forming mold 2 and a movable mold 4. A cooling groove 101 larger than the forming mold 2 is provided on the top of the base 1. The forming mold 2 is fixedly installed at the center of the cooling groove 101, and a tool mold groove 201 is provided on the top of the forming mold 2. A rear frame 3 is fixedly installed on the back of the base 1, and a movable mold 4 is slidably installed on the rear frame 3, and the movable mold 4 is located directly above the forming mold 2. Cooling boxes 5 are embedded on both sides of the base 1, and a drain pipe 103 leading to the cooling groove 101 is fixedly connected to the front of the base 1, and the drain pipe 103 is adapted to be equipped with a pipe cap.

[0022] Specifically, a piston 6 is sealed and slidably installed inside the cooling box 5, and a T-shaped slide bar 7 is fixedly connected to the top of the piston 6. The upper end of the T-shaped slide bar 7 movably passes through the top plate of the cooling box 5. An equal-through inclined hole 102 is opened on the side wall of the cooling groove 101, and the lower end of the equal-through inclined hole 102 leads to the cooling box 5. A plurality of expansion flow holes 202 are opened inside the forming mold 2, and each expansion flow hole 202 is communicated with the cooling groove 101.

[0023] Specifically, a Z-axis slide groove 10 is opened on the rear frame 3, and a lifting block 8 is slidably installed in the Z-axis slide groove 10, the movable mold 4 is fixedly installed at the lower end of the front side of the lifting block 8, and both ends of the front side of the lifting block 8 are fixedly connected with an additional plate 9, and the T-shaped slide bar 7 is located below the additional plate 9. A screw rod 11 is rotatably installed in the Z-axis slide groove 10, and the lifting block 8 is threadedly installed on the screw rod 11. A servo motor 12 is fixedly installed on the top of the rear frame 3, and the top end of the screw rod 11 is fixedly connected to the output shaft of the servo motor 12 to control the movement of the movable mold 4. The lifting block 8 moves down when the mold is closed, and resets and moves up when the mold is opened.

[0024] Specifically, a liquid injection port 401 is provided on the movable mold 4 , and the lower end of the liquid injection port 401 faces the tool mold groove 201 . When the mold is closed, the molten metal is injected into the tool mold groove 201 through the liquid injection port 401 .

[0025] Specifically, an air hole is opened on the inner bottom wall of the tool mold groove 201, and a push rod is slidably connected in the air hole. The lower end of the air hole is used to connect to an external air supply device so that the shearing tool can be ejected after molding to achieve demolding.

[0026] The specific implementation method of this embodiment is as follows: the servo motor 12 drives the screw rod 11 to rotate, so that the lifting block 8 can move down along the screw rod 11, and then the movable mold 4 moves downward until the mold is closed with the forming mold 2, and the metal liquid used for manufacturing the shearing tool is poured into the tool mold groove 201 from the injection port 401. During the downward movement of the lifting block 8, the external plate 9 moves downward accordingly and squeezes the T-shaped slide bar 7. The piston 6 slides downward in the cooling box 5 to send the coolant in the cooling box 5 from the equal-through inclined hole 102 into the cooling groove 101. The shearing tool in the tool mold groove 201 is cooled and formed by heat conduction of the coolant. The design of the expanded flow hole 202 increases the contact area with the liquid to improve the cooling effect.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A new type of die steel for shearing tools, characterized in that: The invention comprises a base (1), a forming die (2) and a movable die (4); the top of the base (1) is provided with a cooling groove (101) which is larger than the forming die (2); the forming die (2) is fixedly mounted at the center of the cooling groove (101); and the top of the forming die (2) is provided with a tool die groove (201); a rear frame (3) is fixedly mounted on the back of the base (1); the movable die (4) is slidably mounted on the rear frame (3); and the movable die (4) is located directly above the forming die (2); cooling boxes (5) are embedded on both sides of the base (1); and a drainage pipe (103) leading to the cooling groove (101) is fixedly connected to the front of the base (1); and the drainage pipe (103) is adapted to be equipped with a pipe cap.

2. The new die steel for shearing tools according to claim 1 is characterized in that: A piston (6) is sealed and slidably installed inside the cooling box (5), and a T-shaped sliding rod (7) is fixedly connected to the top of the piston (6). The upper end of the T-shaped sliding rod (7) movably penetrates the top plate of the cooling box (5). The side wall of the cooling groove (101) is provided with an equal-through inclined hole (102), and the lower end of the equal-through inclined hole (102) leads to the inside of the cooling box (5).

3. The new die steel for shearing tools according to claim 2 is characterized in that: The rear frame (3) is provided with a Z-axis slide groove (10), and a lifting block (8) is slidably installed in the Z-axis slide groove (10), the movable mold (4) is fixedly installed at the lower end of the front side of the lifting block (8), and both ends of the front side of the lifting block (8) are fixedly connected with an additional plate (9), and the T-shaped slide bar (7) is located below the external plate (9).

4. The new die steel for shearing tools according to claim 3 is characterized in that: A screw rod (11) is rotatably mounted in the Z-axis slide groove (10), the lifting block (8) is threadedly mounted on the screw rod (11), a servo motor (12) is fixedly mounted on the top of the rear frame (3), and the top end of the screw rod (11) is fixedly connected to the output shaft of the servo motor (12).

5. The new die steel for shearing tools according to claim 2 is characterized in that: A plurality of surface expansion holes (202) are provided inside the forming die (2), and each surface expansion hole (202) is communicated with the cooling groove (101).

6. The new die steel for shearing tools according to claim 1 is characterized in that: The movable mold (4) is provided with a liquid injection port (401), and the lower end of the liquid injection port (401) faces the inside of the tool mold groove (201).

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