Tungsten carbide cobalt hard alloy wire drawing die

Abstract

The utility model discloses a tungsten carbide cobalt hard alloy wire-drawing die which comprises an outer wrapping shell, a liquid absorption layer is adhered to the middle of the interior of the outer wrapping shell, a die core is connected to the middle of the liquid absorption layer in a clamped mode, oil storage cavities are formed in the two sides of the interior of the outer wrapping shell, an oil outlet is formed in one end of each oil storage cavity, and an oil outlet is formed in the other end of each oil storage cavity. A through pipe is arranged at the rear end of the oil storage cavity in a penetrating mode, and an oil injection nozzle is fixedly connected to the outer end of the through pipe. According to the utility model, the liquid absorbing layer is adhered to the middle of the inner part of the outer casing, is fixed in the circular groove in the middle of the outer casing and is made of absorbent cotton, so that lubricating oil can be gradually absorbed and blocked by the liquid absorbing layer, and the liquid absorbing layer is continuously extruded under the action of the stress of the mold core; and after the liquid absorption layer is extruded, a part of lubricating oil leaks from the gap at the upper end and continuously enters the outer surface of the mold core, so that the phenomenon that the lubricating agent on the surface of the mold core is smeared on the surface of the metal wire, and consequently the lubricating agent is gradually reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wire drawing dies, in particular to a tungsten carbide cobalt hard alloy wire drawing die. Background Art

[0002] A wire drawing die is a tool used during metal pressure processing to force metal through a die under the action of external force, compress the metal's cross-sectional area, and obtain the required cross-sectional shape and size. A wire drawing die is a die through which a metal wire passes, so that it gradually changes from thick to thin and reaches the size people need. This special die is a wire drawing die. The core of a wire drawing die is generally made of natural diamond, but can also be made of other hard alloys.

[0003] However, the existing wire drawing dies will directly apply lubricant on the surface of the die core. When the die core pulls the metal wire and other structures, the lubricant on the surface of the die core will gradually be smeared on the surface of the metal wire, which will cause the lubricant on the surface of the die core to gradually decrease, and finally the lubrication performance of the die core to the metal wire will be reduced; the die core in the general wire drawing die is mostly fixedly connected to the middle of the outer shell, and the die core cannot be replaced after it is worn. Therefore, in order to solve the above problems, we propose a tungsten carbide cobalt cemented carbide wire drawing die. Utility Model Content

[0004] The purpose of the utility model is to provide a tungsten carbide cobalt hard alloy wire drawing die to solve the problem proposed in the above background technology that when the die core pulls the metal wire and other structures, the lubricant on the surface of the die core will gradually be smeared on the surface of the metal wire, which will cause the lubricant on the surface of the die core to gradually decrease, and finally the lubrication performance of the die core to the metal wire will be reduced; the die core in the general wire drawing die is mostly fixedly connected in the middle of the outer shell, and the die core cannot be replaced after it is worn.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tungsten carbide cobalt cemented carbide wire drawing die, comprising an outer shell, a liquid absorption layer adhered to the middle of the inner part of the outer shell, a mold core clamped in the middle of the liquid absorption layer, oil storage cavities are provided on both sides of the inner part of the outer shell, an oil outlet is provided at one end of the oil storage cavity, a through pipe is penetrated through the rear end of the oil storage cavity, and an oil injection nozzle is fixedly connected to the outer end of the through pipe.

[0006] Preferably, a circular groove is provided in the middle of the outer shell, and the liquid absorption layer and the mold core are both located in the circular groove.

[0007] Preferably, one end of the oil outlet is connected to the circular groove.

[0008] Preferably, both sides of the mold core are provided with external openings, the inner end of the external opening is provided with a slot, one end of the inner part of the slot is provided with a plug-in slot, and a pressure plate is movably provided on one side of the external opening, the slot and the plug-in slot, and one end of the pressure plate is connected to a spring.

[0009] Preferably, the slot passes through the mold core and the liquid-absorbing layer and extends to the interior of the outer shell.

[0010] Preferably, the liquid absorbing layer is made of absorbent cotton.

[0011] Preferably, the mold core is made of tungsten-cobalt cemented carbide.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model has a liquid absorption layer adhered to the middle of the inner part of the outer shell, and the liquid absorption layer is fixed in the circular groove in the middle of the outer shell. The material of the liquid absorption layer is absorbent cotton. The liquid absorption layer will gradually absorb and block the lubricating oil, and then temporarily store the lubricating oil to prevent the lubricating oil from leaking out of the oil outlet. Then the metal wire passes through the mold core, so that the mold core squeezes the metal wire, and the mold core is continuously squeezed by the force to squeeze the liquid absorption layer. After the liquid absorption layer is squeezed, a part of the lubricating oil leaks out from the gap at the upper end and continuously enters the outer surface of the mold core. This arrangement makes the surface of the mold core continuously covered with lubricating oil, thereby avoiding the phenomenon that the lubricant on the surface of the mold core is smeared on the surface of the metal wire, resulting in the gradual reduction of the lubricant;

[0014] 2. The utility model inserts a new mold core into the circular groove in the middle of the outer shell, and the tension force of the internal spring of the outer opening squeezes the entire pressing plate, which eventually causes the pressing plate to move laterally to one end, wherein the transverse plate at the lower end of the pressing plate is inserted into the plug-in groove, so that the circular groove in the middle of the outer shell fixes the entire mold core, and the mold core is replaced through this operation, thereby maintaining the performance of the mold core extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the utility model after being disassembled as a whole;

[0017] Figure 3 It is a top view cutaway view of the utility model as a whole;

[0018] Figure 4 For this utility model Figure 3 Enlarged section view of point A in the middle.

[0019] In the figure: 1. outer shell; 2. liquid absorption layer; 3. mold core; 4. outer opening; 5. pressure plate; 6. oil injection nozzle; 7. through pipe; 8. oil storage chamber; 9. oil outlet; 10. spring; 11. slot; 12. plug-in slot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figures 1 to 4 The utility model provides an embodiment: a tungsten carbide cobalt hard alloy wire drawing die, comprising an outer shell 1, a liquid absorption layer 2 is adhered to the middle of the inner part of the outer shell 1, a mold core 3 is clamped in the middle of the liquid absorption layer 2, oil storage chambers 8 are arranged on both sides of the inner part of the outer shell 1, an oil outlet 9 is arranged at one end of the oil storage chamber 8, a through pipe 7 is penetrated through the rear end of the oil storage chamber 8, and an oil injection nozzle 6 is fixedly connected to the outer end of the through pipe 7, wherein the material of the mold core 3 is tungsten cobalt hard alloy, and the alloy improves the hardness of the overall mold core 3;

[0022] This arrangement enables the lubricating oil to be stored inside the oil storage chamber 8. When in use, the lubricating oil copper tube oiling nozzle 6 is injected through the oil injection tool, and the lubricating oil enters the oil storage chamber 8 through the through pipe 7, and the lubricating oil in the oil storage chamber 8 will continuously leak out from the oil outlet 9 on one side. The material of the liquid absorption layer 2 is absorbent cotton, and the liquid absorption layer 2 will gradually absorb and block the lubricating oil, and then temporarily store the lubricating oil to prevent the lubricating oil from leaking out of the oil outlet 9. Then the metal wire passes through the mold core 3, so that the mold core 3 squeezes the metal wire, and the mold core 3 is continuously squeezed by the force The liquid absorption layer 2, after the liquid absorption layer 2 is squeezed, a part of the lubricating oil leaks out from the gap at the upper end and continuously enters the outer surface of the mold core 3. This arrangement makes the surface of the mold core 3 continuously covered with lubricating oil, thereby avoiding the phenomenon that the lubricant on the surface of the mold core 3 is smeared on the surface of the metal wire, causing the lubricant to gradually decrease.

[0023] A circular groove is provided in the middle of the outer shell 1, the liquid absorbing layer 2 and the mold core 3 are both located in the circular groove, one end of the oil outlet 9 is connected to the circular groove, and the circular groove is plugged and fixedly matched with the mold core 3.

[0024] The mold core 3 has external openings 4 on both sides, the inner end of the external opening 4 is penetrated by a slot 11, one end of the slot 11 is provided with a plug-in slot 12, and a pressing plate 5 is movably provided on one side of the external opening 4, the slot 11 and the plug-in slot 12, one end of the pressing plate 5 is connected to a spring 10, and the slot 11 penetrates the mold core 3 and the liquid absorbing layer 2 and extends to the inside of the outer shell 1.

[0025] When in use, press the pressing plates 5 on both sides of the mold core 3, and the pressing plates 5 squeeze the tension elastic force of the spring 10, so that the pressing plates 5 move laterally in the outer opening 4 and the slot 11, and the transverse plate at the lower end of the pressing plate 5 is pulled out from the plug-in groove 12, so that the pressing plate 5 and the plug-in groove 12 are separated and disassembled, and finally the entire mold core 3 is disengaged from the circular groove in the middle of the outer shell 1 to be disassembled, and then the new mold core 3 is inserted into the circular groove in the middle of the outer shell 1, and the tension elastic force of the spring 10 inside the outer opening 4 squeezes the entire pressing plate 5, and finally the pressing plate 5 moves laterally to one end, wherein the transverse plate at the lower end of the pressing plate 5 is inserted in the plug-in groove 12, so that the circular groove in the middle of the outer shell 1 fixes the entire mold core 3, and the mold core 3 is replaced through this operation, thereby maintaining the extrusion performance of the mold core 3.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A tungsten carbide cobalt hard alloy wire drawing die, comprising an outer shell (1), characterized in that: A liquid absorbing layer (2) is adhered to the middle of the interior of the outer shell (1), a mold core (3) is clamped in the middle of the liquid absorbing layer (2), oil storage chambers (8) are provided on both sides of the interior of the outer shell (1), an oil outlet (9) is provided at one end of the oil storage chamber (8), a through pipe (7) is penetrated through the rear end of the oil storage chamber (8), and an oil injection nozzle (6) is fixedly connected to the outer end of the through pipe (7).

2. The tungsten carbide cobalt hard alloy wire drawing die according to claim 1, characterized in that: A circular groove is provided in the middle of the outer shell (1), and the liquid absorption layer (2) and the mold core (3) are both located in the circular groove.

3. A tungsten carbide cobalt hard alloy wire drawing die according to claim 2, characterized in that: One end of the oil outlet (9) is connected to the circular groove.

4. A tungsten carbide cobalt hard alloy wire drawing die according to claim 3, characterized in that: Both sides of the mold core (3) are provided with external openings (4), the inner end of the external opening (4) is provided with a slot (11), one end of the interior of the slot (11) is provided with a plug-in slot (12), and one side of the external opening (4), the slot (11) and the plug-in slot (12) is movably provided with a pressure plate (5), and one end of the pressure plate (5) is connected to a spring (10).

5. The tungsten carbide cobalt hard alloy wire drawing die according to claim 4, characterized in that: The slot (11) passes through the mold core (3) and the liquid absorbing layer (2) and extends to the interior of the outer shell (1).

6. The tungsten carbide cobalt hard alloy wire drawing die according to claim 5, characterized in that: The material of the liquid absorbing layer (2) is absorbent cotton.

7. The tungsten carbide cobalt hard alloy wire drawing die according to claim 6, characterized in that: The material of the mold core (3) is tungsten-cobalt hard alloy.

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