Wire-drawing die seat capable of ensuring centering

Abstract

The utility model provides a wire-drawing die seat for ensuring centering, which comprises a wire-drawing die seat arranged between an original wire roller and a take-up device, the wire-drawing die seat comprises a die seat body with a U-shaped structure, the U-shaped structure of the die seat body is used for loading a wire-drawing die, a heating device is arranged in the die seat body, and the heating device is used for heating the wire-drawing die to a working temperature. A preheating mode is adopted to heat the wire-drawing die to a working temperature, so that the wire-drawing die is pre-deformed in advance, and the purpose of keeping a hole of the wire-drawing die unchanged in a wire-drawing process is achieved, so that a metal wire is kept in a stable form when passing through a wire-drawing die seat. Centering is indirectly achieved by accurately controlling the temperature and distribution of the heating device, meanwhile, the wire drawing die base has universality for metal wires with different physical characteristics, and the structure is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the field of wire drawing processes for metal wires, and more particularly to a wire drawing die holder that ensures centering. Background Art

[0002] In the production process of metal wire drawing, the die holder is a very crucial part of the wire drawing process. If the wire drawing center is not centered with the drawing direction, the die hole will be subjected to uneven pressure, resulting in inconsistent wire diameters. The drawn wire products are affected by internal stresses and show a bent state in the natural state. It will also increase the uneven friction of the wire during the wire drawing process, reduce the wire drawing speed, thereby affecting production efficiency, and may even cause other components of the wire drawing equipment to bear additional stresses, leading to equipment failures or damages in the long run. Chinese Patent CN214263283U, a practical wire drawing machine die holder, records that the die holder includes a support seat, an installation ring, a collection member, and a die cover. The die cover is provided on the left side surface of the support seat. The metal wire through hole allows the metal wire to pass through, and the die positioning groove can position the die. Although this patent ensures the centering of the die to a certain extent, this solution does not consider that the friction between the metal wire and the die hole during the wire drawing process causes the entire wire drawing die to heat up, so that the die hole deviates from the guide wheel under the state of thermal expansion and contraction, affecting the wire drawing quality. For experimental devices, these errors are unacceptable and will affect the accuracy of experimental data. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a wire drawing die holder that ensures centering, and solve the problem that during the wire drawing process, the hole position of the wire drawing die holder changes, resulting in the metal wire not being centered, thus causing flat bending deformation during wire drawing and affecting the quality of the metal wire products.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a wire drawing die holder is provided between the original wire roller and the wire collecting device. The wire drawing die holder includes a die holder body with a "U" - shaped structure. The "U" - shaped structure of the die holder body is used to load the wire drawing die. A heating device is provided inside the die holder body, and the heating device is used to heat the wire drawing die to the working temperature.

[0005] In a preferred embodiment, a temperature sensor is provided on one side of the die holder body, and the temperature sensor feeds back to control the temperature of the wire drawing die holder.

[0006] In a preferred embodiment, a vibration sensor is provided on the side surface of the die holder body to collect vibration frequency and amplitude data.

[0007] In a preferred embodiment, the vibration sensor is a three - axis or two - axis acceleration sensor.

[0008] In a preferred embodiment, an adjustable guide wheel is provided on one side of the wire drawing die holder close to the original wire roller. The adjustable guide wheel is used to adjust the position of the wire to align with the hole position of the wire drawing die at the working temperature.

[0009] In a preferred embodiment, the structure of the adjustable guide wheel is as follows: the support shaft is supported on the bearing seat, a fixed rod is provided at the lower part of the bearing seat, and the fixed rod is fixedly connected to the frame in an adjustable manner through a guide wheel fixing nut.

[0010] In a preferred embodiment, two opposite adjustable radiation wheels are sleeved on the support shaft. A plurality of trapezoidal radiation fins are arranged radially along the circumference on the adjustable radiation wheels. The length of one end connected to the adjustable radiation wheel is longer, and the length of the other end is relatively shorter. The two adjustable radiation wheels are slidably sleeved on the support shaft, and the projections of the radiation fins of the two adjustable radiation wheels in the vertical plane form an "x" shape.

[0011] In a preferred embodiment, a guide wheel boss is provided at one end of the adjustable radiation wheel away from the radiation fins. A guide groove is provided on the outer wall of the guide wheel boss. The adjustable nut sleeve is slidably sleeved on the guide wheel boss and forms a limiting sliding structure with the guide groove through a radially arranged sliding pin to limit the axial position between the adjustable nut sleeve and the guide wheel boss. A thread is provided on the outer wall of the support shaft, and the adjustable nut sleeve is threadedly connected to the support shaft. Rotating the adjustable nut sleeve finely adjusts the horizontal and vertical positions of the wire.

[0012] In a preferred embodiment, the temperature sensor adopts any one of a thermocouple, a platinum resistance thermometer or an infrared temperature sensor; the heating device adopts any one of a resistance heating device, an inductance coil heating device or a laser heating device.

[0013] In a preferred embodiment, spray holes are provided on the die holder body, and the positions of the spray holes correspond to the inlet positions of the holes of the wire drawing die.

[0014] The present invention provides an alignment ensuring wire drawing die holder, which includes a wire drawing die holder arranged between the original wire roller and the wire take-up device. The wire drawing die holder includes a die holder body with a "U" - shaped structure. The "U" - shaped structure of the die holder body is used to load the wire drawing die. A heating device is provided in the die holder body, and the heating device is used to heat the wire drawing die to the working temperature. An adjustable guide wheel is provided on one side of the wire drawing die holder close to the original wire roller, and the adjustable guide wheel is used to precisely adjust the position of the wire to keep it aligned with the hole position of the wire drawing die. By adopting a pre - heating method, the wire drawing die is heated to the working temperature, so that the wire drawing die is pre - deformed in advance to ensure that the hole of the wire drawing die remains unchanged during the processing. The temperature and distribution are precisely controlled by the heating device to indirectly achieve alignment. For wires showing different physical properties, the wire drawing die holder has universality, and the structure is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further illustrates the present invention with reference to the drawings and embodiments:

[0016] Figure 1 is a schematic structural view of the wire drawing die holder of the present utility model;

[0017] Figure 2 is a schematic view of the wire drawing device using the wire drawing die holder of the present utility model;

[0018] Figure 3 is a schematic side view structural view of the adjustable guide wheel of the present utility model;

[0019] Figure 4 is a schematic front view structural view of the adjustable guide wheel of the present utility model;

[0020] In the figure: original wire roller 1; vibration sensor 2; adjustable guide wheel 3; fixed rod 31; guide wheel fixing nut 32; adjustable radiation wheel 33; radiation wing 34; sliding pin 35; guide wheel boss 36; adjustable nut sleeve 37; support shaft 38; bearing seat 39; wire drawing die holder 4; wire drawing die 41; spray hole 42; die holder body 43; temperature sensor 5; heating device 6; wire take-up device 7; wire 8; frame 9. Specific embodiments

[0021] Embodiment 1:

[0022] As Figures 1 to 4 shown, a wire drawing die holder for ensuring centering includes a wire drawing die holder 4 provided between the original wire roller 1 and the wire take-up device 7. The wire drawing die holder 4 includes a die holder body 43 with a "U" - shaped structure. The "U" - shaped structure of the die holder body 43 is used to load the wire drawing die 41. A heating device 6 is provided inside the die holder body 43, and the heating device 6 is used to heat the wire drawing die 41 to the working temperature. With this structure, compared with the hole position of the initial wire drawing die 41, the hole position of the wire drawing die 41 during the wire drawing process changes, resulting in flat bending deformation of the wire 8 during the wire drawing process, affecting the finished product quality of the wire 8. By adopting the pre - heating method, using the heating device 6 to precisely control the heating temperature and distribution, the wire drawing die 41 is heated to the working temperature, enabling the wire drawing die 41 to be pre - deformed in advance, achieving the purpose of keeping the holes of the wire drawing die 41 unchanged during the processing, so as to ensure that the wire 8 maintains a stable shape and position when passing through the wire drawing die holder 4. For wires 8 showing different physical properties, the wire drawing die holder 4 has universality, and the structure is relatively simple. At the same time, in actual production, a particularly long length is not drawn, and the wire drawing die 41 belongs to a process of rapid temperature rise. Therefore, the wire drawing die holder 4 can effectively improve the processing accuracy.

[0023] In a preferred solution, as Figure 1 and 2As shown, a temperature sensor 5 is provided on one side of the die holder 43, and the temperature sensor 5 feeds back to control the temperature of the wire drawing die holder 4. A vibration sensor 2 is provided on the side of the die holder 43 to collect vibration frequency and amplitude data. Preferably, the vibration sensor 2 is a three-axis or two-axis acceleration sensor. With this structure, the temperature sensor 5 is used to feedback the temperature control of the wire drawing die holder 4, and the vibration sensor 2 is used to evaluate the wire drawing quality. By collecting the vibration frequency and amplitude data, the vibration parameters can be correlated with the quality data of the wire 8, especially the quality defect data, that is, by detecting the vibration parameters, it can be determined whether there are quality defects in the wire 8 and what kind of quality defects occur. The quality defects of the wire 8 include surface scratches, dimensional deviations, bending or twisting, cracks, local hardening, etc.

[0024] In a preferred embodiment, as Figure 2 shown, an adjustable guide wheel 3 is provided on the side of the wire drawing die holder 4 close to the original wire roller 1, and the adjustable guide wheel 3 is used to adjust the position of the wire 8 to align with the hole position of the wire drawing die 41 at the working temperature. With this structure, the adjustable guide wheel 3 ensures that the wire 8 can travel along the correct path before entering the hole of the wire drawing die 41, avoiding uneven stress on the wire 8 due to misalignment between the path of the wire 8 and the hole of the wire drawing die 41, resulting in inconsistent deformation of the wire 8 and forming a finished product curl.

[0025] In a preferred embodiment, as Figure 3 and 4 shown, the structure of the adjustable guide wheel 3 is: the support shaft 38 is supported on the bearing seat 39, a fixed rod 31 is provided at the lower part of the bearing seat 39, and the fixed rod 31 is fixedly connected to the frame 9 in an adjustable manner through a guide wheel fixing nut 32. With this structure, it can be used to adjust the height position of the wire 8.

[0026] In a preferred embodiment, as Figure 4 shown, two opposite adjustable radiation wheels 33 are sleeved on the support shaft 38, and a plurality of trapezoidal radiation fins 34 are arranged radially along the circumference on the adjustable radiation wheels 33. The length of one end connected to the adjustable radiation wheel 33 is longer, and the length of the other end is relatively shorter. The radiation fins 34 of the two adjustable radiation wheels 33 form an "x" shape in the vertical plane projection. With this structure, the radiation fins 34 can accurately provide support for the wire, especially for wires with a relatively thin diameter, such as wires with a diameter of 30 - 100 microns, that is, ensure that the center of the wire is aligned with the hole of the die.

[0027] In a preferred embodiment, as Figure 4As shown, a guide wheel boss 36 is provided at one end of the adjustable radiation wheel 33 away from the radiation fins 34. A guide groove is provided on the outer wall of the guide wheel boss 36. The adjustable nut sleeve 37 is slidably sleeved on the guide wheel boss 36 and forms a limit sliding structure with the guide groove through a radially arranged sliding pin 35 to limit the axial position between the adjustable nut sleeve 37 and the guide wheel boss 36. A thread is provided on the outer wall of the support shaft 38, and the adjustable nut sleeve 37 is threadedly connected to the support shaft 38. Rotating the adjustable nut sleeve 37 can finely adjust the horizontal and vertical positions of the wire 8. With this structure, the adjustable guide wheel 3 can accurately adjust the position of the wire 8 to align with the hole of the wire drawing die 41, so as to further ensure the centering setting of the wire 8 and the wire drawing die seat 4 during the wire drawing process. It is especially suitable for the drawing of ultra-fine wires, preferably wires with a diameter less than 0.1 mm.

[0028] In a preferred embodiment, as Figure 1 and 2 shown, the temperature sensor 5 adopts any one of a thermocouple, a platinum resistance thermometer or an infrared temperature sensor; the heating device 6 adopts any one of a resistance heating device, an inductance coil heating device or a laser heating device. With this structure, preferably, a temperature raising device is further provided between the original wire roller 1 and the wire drawing die seat 4. The temperature raising device includes a housing for heat preservation and a temperature sensor 5 arranged close to the wire 8. A heating device 6 for heating the wire 8 is arranged in the housing. The temperature sensor 5 can accurately control the temperature rising rate and reduce the temperature fluctuation. Preferably, the resistance heating device or the inductance coil heating device is connected to an independent control system, and the control system includes a control system adjusted by the magnitude of the input voltage and / or current. The laser heating device adopts a laser heating head for metal rust removal, and accurately controls the heating temperature by the way of outputting the pulse width of a square wave, that is, the gap control on-off mode.

[0029] In a preferred embodiment, as Figure 1 shown, spray holes 42 are provided on the die seat body 43, and the positions of the spray holes 42 correspond to the inlet positions of the holes of the wire drawing die 41. With this structure, the spray holes 42 are used to spray coolant, or spray coolant and protective gas at the same time, fully considering the cooling effect during the wire drawing process, and avoiding overheating, deformation or even damage of the wire drawing die seat 4 during the wire drawing process.

[0030] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A wire drawing die seat for ensuring centering, characterized by: The invention comprises a wire drawing die seat (4) arranged between an original wire roller (1) and a wire taking-up device (7), wherein the wire drawing die seat (4) comprises a die seat body (43) of a "U"-shaped structure, wherein the "U"-shaped structure of the die seat body (43) is used for loading a wire drawing die (41), and a heating device (6) is arranged in the die seat body (43), wherein the heating device (6) is used for heating the wire drawing die (41) to a working temperature.

2. A wire drawing die seat for ensuring centering according to claim 1, characterized in that: A temperature sensor (5) is provided on one side of the die seat body (43), and the temperature sensor (5) feedback controls the temperature of the wire drawing die seat (4).

3. A wire drawing die seat for ensuring centering according to claim 1 or 2, characterized in that: A vibration sensor (2) is provided on the side of the mold base (43) to collect vibration frequency and amplitude data.

4. A wire drawing die seat for ensuring centering according to claim 3, characterized in that: The vibration sensor (2) is a three-axis or two-axis acceleration sensor.

5. A wire drawing die seat for ensuring centering according to claim 1, characterized in that: An adjustable guide wheel (3) is provided on one side of the wire drawing die seat (4) close to the original wire roller (1), and the adjustable guide wheel (3) is used to adjust the position of the metal wire (8) to align with the hole position of the wire drawing die (41) at the working temperature.

6. A wire drawing die holder for ensuring centering according to claim 5, characterized in that: The guide wheel (3) has a structure in which a support shaft (38) is supported on a bearing seat (39), a fixing rod (31) is provided at the lower part of the bearing seat (39), and the fixing rod (31) is fixedly connected to the frame (9) in an adjustably manner via a guide wheel fixing nut (32).

7. A wire drawing die seat for ensuring centering according to claim 6, characterized in that: Two opposite adjustable radiating wheels (33) are sleeved on the support shaft (38), and a plurality of trapezoidal radiating wings (34) are radially provided on the adjustable radiating wheel (33) along the circumference, one end connected to the adjustable radiating wheel (33) is longer in length, and the other end is relatively shorter in length, the two adjustable radiating wheels (33) are slidably sleeved on the support shaft (38), and the projections of the radiating wings (34) of the two adjustable radiating wheels (33) on the vertical plane form an "x" shape.

8. A wire drawing die seat for ensuring centering according to claim 7, characterized in that: A guide wheel boss (36) is provided at one end of the adjustable radial wheel (33) away from the radial wing (34), and a guide groove is provided on the outer wall of the guide wheel boss (36). The adjustable nut sleeve (37) is slidably sleeved with the guide wheel boss (36), and a radially arranged sliding pin (35) and the guide groove form a limited sliding structure to limit the axial position between the adjustable nut sleeve (37) and the guide wheel boss (36). A thread is provided on the outer wall of the support shaft (38), and the adjustable nut sleeve (37) is threadedly connected to the support shaft (38). The adjustable nut sleeve (37) is rotated to finely adjust the horizontal and vertical positions of the metal wire (8).

9. A wire drawing die seat for ensuring centering according to claim 2, characterized in that: The temperature sensor (5) is any one of a thermocouple, a platinum resistance thermometer or an infrared temperature sensor; the heating device (6) is any one of a resistance heating device, an induction coil heating device or a laser heating device.

10. A wire drawing die seat for ensuring centering according to claim 1, characterized in that: A spray hole (42) is provided on the die base (43), and the position of the spray hole (42) corresponds to the inlet position of the hole of the wire drawing die (41).

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