Die for gold wire drawing

Abstract

The utility model relates to the technical field of wire drawing dies, and particularly discloses a die for gold wire drawing, which comprises a base, a fixed die holder fixedly mounted on the base, a movable die holder fixedly connected with the fixed die holder, and a core die mounted in a die cavity of the fixed die holder and the movable die holder. A pair of positioning plates with positioning holes are arranged on the end surface of the feeding end of the core mold; a pair of vertical rods is arranged on the base, a laser transmitter is installed on one vertical rod, and a laser receiver is installed on the other vertical rod. By designing the mounting structure of the core mold and the movable mold base, the axis of the core mold can be adjusted, so that the angle can be accurately adjusted when the core mold is mounted, and the axis of the core mold coincides with the running route of a drawn wire.

Description

Technical Field

[0001] The utility model relates to the technical field of wire drawing dies, in particular to a die used for gold wire drawing. Background Art

[0002] In the processing of metal wire, metal ingots are processed into metal wires through drawing dies. In the installation of the drawing dies, ensuring the installation accuracy of the core die is an important processing detail, including ensuring the identity of the drawing hole of the core die and the drawing direction, which can effectively improve the stability of the wire drawing process and the smoothness of the surface of the drawn metal wire. Therefore, in the design of the drawing die, technicians in this field are also studying how to improve the installation accuracy of the core die and improve the stability of the core die after installation. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a die for gold wire drawing, by designing a positioning plate for positioning at the feeding end of the core die, in combination with a laser transmitter and a laser receiver, to determine the installation position of the die core and improve the installation accuracy of the die core.

[0004] To achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a mold for gold wire drawing, including a base, a fixed mold base fixedly installed on the base, a movable mold base fixedly connected to the fixed mold base, and a core mold installed in the mold cavity of the fixed mold base and the movable mold base, characterized in that a pair of positioning plates with positioning holes are arranged on the end face of the feeding end of the core mold; a pair of vertical poles are arranged on the base, a laser transmitter is installed on one vertical pole, and a laser receiver is installed on the other vertical pole.

[0005] Furthermore, the movable mold base is a cylindrical structure, and threaded holes penetrating the side wall are arranged on the cylindrical body of the movable mold base body of the movable mold base, and there are three groups of threaded holes, each group has two, and the three groups of threaded holes are evenly arranged along the circumference; a connecting column is arranged on the end face of the movable mold base body that docks with the fixed mold base, and the connecting column is a T-shaped structure; there are three connecting columns that are evenly arranged around the mold cavity; a connecting groove is arranged on the end face of the fixed mold base body of the fixed mold base that docks with the movable mold base, and the connecting groove cooperates with the connecting column.

[0006] Furthermore, a fastening stud is installed in the threaded hole, an adjusting arc plate is installed in the mold cavity of the movable mold base, and the end of the fastening stud is pressed against the adjusting arc plate.

[0007] Furthermore, a groove for placing the adjustment arc plate is provided in the mold cavity of the movable mold base.

[0008] Furthermore, a gear ring is fixedly mounted on the movable mold base body of the movable mold base; a long spur gear is installed on the base, and a driven umbrella paper wheel is installed on the end of the gear shaft of the long spur gear; the stepping motor is fixedly installed on the base, and an active umbrella paper wheel is installed on the end of the output shaft of the stepping motor; the active bevel gear cooperates with the driven bevel gear; and the long spur gear cooperates with the gear ring.

[0009] Furthermore, both ends of the long spur gear are mounted on the base through bearings.

[0010] The die for gold wire drawing provided by the utility model has the following beneficial effects:

[0011] A pair of positioning plates with through holes are installed at the feeding end of the core mold. Laser transmitters are set on both sides of the positioning plates for receiving devices. The laser transmitter emits infrared rays, which pass through the positioning holes on the positioning plates and are then received by the laser receiver to determine the position of the positioning plates. This is used to adjust the position of the core mold to ensure that the axis of the core mold coincides with the wire drawing route. In order to improve accuracy, two positioning plates are set for double positioning to improve the accuracy of core mold installation.

[0012] Through the cooperation of the threaded rod and the adjusting arc plate, the angle of the core mold is adjusted and the core mold is fixed on the movable mold base. The threaded rod is rotated to drive the adjusting arc plate to fix the core mold. The front and rear threaded rods can adapt to more situations so that the core mold can be adjusted at more angles.

[0013] Through the cooperation of the long spur gear and the gear ring, after the movable mold base is installed on the fixed mold base, the long spur gear is used to drive the gear ring to rotate, and then drive the movable mold base to rotate, starting the effect of tightening the connection between the movable mold base and the fixed mold base. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a die for gold wire drawing according to the utility model;

[0015] Figure 2 This is a schematic cross-sectional structure diagram of a die for gold wire drawing according to the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of a fixed mold base;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the movable mold base;

[0018] Figure 5 Schematic diagram of the three-dimensional structure of the mold core;

[0019] Figure 6 for Figure 5 Side view of the middle mold core;

[0020] Figure 7 For threaded rod and arc shape.

[0021] In the figure: base-1, fixed mold base-2, movable mold base-3, core mold-4, vertical rod-5, stepper motor-6, long spur gear-7, fastening stud-8, adjusting arc plate-9;

[0022] Fixed mold base body-2.1, connecting groove-2.2,

[0023] Movable die base body-3.1, connecting column-3.2, gear ring-3.3, threaded hole-3.4. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1

[0026] Combined with Figure 1 , 2 , 5, 6, a die for gold wire drawing, comprising a base 1, a fixed die base 2 fixedly mounted on the base 1, a movable die base 3 fixedly connected to the fixed die base 2, a core die 4 installed in a die cavity of the fixed die base 2 and the movable die base 3, a pair of positioning plates 4.3 with positioning holes are arranged on the end face of the feeding end of the core die 4; a pair of vertical poles 5 are arranged on the base 1, a laser transmitter is installed on one vertical pole 5, and a laser receiver is installed on the other vertical pole 5.

[0027] The infrared rays generated by the infrared generator pass through the positioning holes on the positioning plate and are received by the laser receiver to determine whether the core mold is installed in place. When the core mold is installed in place, neither of the two positioning plates will block the corresponding infrared rays.

[0028] Example 2

[0029] Based on Example 1, Figure 3 , 4The movable mold base 3 is a cylindrical structure. The movable mold base body 3.1 of the movable mold base 3 is provided with threaded holes 3.4 that penetrate the side wall. There are three groups of threaded holes 3.4, each group has two, and the three groups of threaded holes are evenly arranged along the circumference; the movable mold base body 3.1 is provided with a connecting column 3.2 on the end surface of the fixed mold base 2, and the connecting column 3.2 is a T-shaped structure; there are three connecting columns 3.2, which are evenly arranged around the mold cavity; the fixed mold base body 2.1 of the fixed mold base 2 and the movable mold base body 2.1 are connected to each other. A connecting groove 2.2 is arranged on the end face of the mold base 3, and the connecting groove 2.2 cooperates with the connecting column 3.2; the connecting groove 2.2 is designed to be wedge-shaped, and the thickness between the side wall of the connecting groove close to the end face and the end face increases from narrow to wide, so that a tighter connection between the movable mold base and the fixed mold base can be ensured; in order to make the connection tighter, a through hole penetrating the mold cavity can also be arranged in the axial direction of the movable mold base, and the fastening rod is fixed on the end face of the fixed mold base, and the movable mold base and the fixed mold base are fixed by fastening with a nut.

[0030] The fastening stud 8 is installed in the threaded hole 3.4, and the adjusting arc plate 9 is installed in the mold cavity of the movable mold base 3, and the end of the fastening stud 8 is pressed against the adjusting arc plate 9; the mold cavity of the movable mold base 3 is provided with a groove for placing the adjusting arc plate 9;

[0031] The movable mold base body 3.1 of the movable mold base 3 is fixedly sleeved with a gear ring 3.3; a long spur gear 7 is installed on the base 1, and a driven umbrella paper wheel is installed at the end of the gear shaft of the long spur gear 7; a stepper motor 6 is fixedly installed on the base 1, and an active umbrella paper wheel is installed at the end of the output shaft of the stepper motor 6; the active umbrella gear cooperates with the driven umbrella gear; the long spur gear 7 cooperates with the gear ring 3.3; in addition, the long spur gear can be replaced with a worm, and the gear ring can be replaced with a turbine, and the movable mold base and the fixed mold base are connected in a way that the worm wheel and the worm cooperate with each other;

[0032] Both ends of the long spur gear 7 are mounted on the base 1 through bearings.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die for gold wire drawing, comprising a base (1), a fixed die base (2) fixedly mounted on the base (1), a movable die base (3) fixedly connected to the fixed die base (2), and a core die (4) mounted in a die cavity of the fixed die base (2) and the movable die base (3), characterized in that: A pair of positioning plates (4.3) with positioning holes are arranged on the feeding end surface of the core mold (4); a pair of vertical poles (5) are arranged on the base (1), a laser transmitter is installed on one vertical pole (5), and a laser receiver is installed on the other vertical pole (5).

2. The die for gold wire drawing according to claim 1, characterized in that: The movable mold base (3) is a cylindrical structure. The movable mold base body (3.1) of the movable mold base (3) is provided with threaded holes (3.4) penetrating the side wall on the cylinder. There are three groups of threaded holes (3.4), each group has two threads, and the three groups of threaded holes are evenly arranged along the circumference. A connecting column (3.2) is provided on the end surface of the movable mold base body (3.1) that is connected to the fixed mold base (2). The connecting column (3.2) is a T-shaped structure. There are three connecting columns (3.2) that are evenly arranged around the mold cavity. A connecting groove (2.2) is provided on the end surface of the fixed mold base body (2.1) of the fixed mold base (2) that is connected to the movable mold base (3), and the connecting groove (2.2) cooperates with the connecting column (3.2).

3. The die for gold wire drawing according to claim 2, characterized in that: A fastening stud (8) is installed in the threaded hole (3.4), and an adjusting arc plate (9) is installed in the mold cavity of the movable mold base (3), with the end of the fastening stud (8) resting on the adjusting arc plate (9).

4. The die for gold wire drawing according to claim 3, characterized in that: A groove for placing the adjustment arc plate (9) is provided in the mold cavity of the movable mold base (3).

5. The die for gold wire drawing according to claim 1 or 2, characterized in that: The movable mold base (3) has a gear ring (3.3) fixedly mounted on a movable mold base body (3.1); a long spur gear (7) is mounted on the base (1), and a driven umbrella paper wheel is mounted on the end of the gear shaft of the long spur gear (7); a stepping motor (6) is fixedly mounted on the base (1), and an active umbrella paper wheel is mounted on the end of the output shaft of the stepping motor (6); the active umbrella gear cooperates with the driven umbrella gear; and the long spur gear (7) cooperates with the gear ring (3.3).

6. The die for gold wire drawing according to claim 5, characterized in that: Both ends of the long spur gear (7) are mounted on the base (1) via bearings.

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