A device for controlling the tension of a very fine nichrome wire

Abstract

The application discloses a kind of extra-fine nickel-chromium electrothermal alloy wire stretch control device, including shell and several detachable assembly in shell control wire guide pipe, shell is made of upper shell and lower shell joint combination, upper shell and lower shell are opened with multiple assembly slots in width direction, control wire guide pipe snap fits in assembly slot, control wire guide pipe adopts hollow cylinder structure, both ends of control wire guide pipe are all adopted by gradually smaller caliber from outside to inside flared mouth structure.The application is suitable for nickel-chromium electrothermal alloy wire production, the control wire guide pipe in the device is detachably connected, such structure setting makes that control wire guide pipe can be replaced according to actual needs adjustment, improves the applicability of the device, and the guiding effect of the guide control device of such guide pipe structure is excellent, meanwhile, nickel-chromium electrothermal alloy wire of control wire guide pipe does not appear transverse movement, and it is not easy to produce the condition of fracture.

Description

Technical Field

[0001] This invention relates to the field of nickel-chromium electrothermal alloy wire production technology, and in particular to a stretching control device for ultra-fine nickel-chromium electrothermal alloy wire. Background Technology

[0002] Nickel-chromium materials are widely used in industrial electric furnaces, household appliances, and far-infrared devices due to their high strength at high temperatures and strong plasticity. Nickel-chromium can be combined with elements such as iron, aluminum, silicon, carbon, and sulfur to form alloys. Nickel-chromium wire has high resistivity and heat resistance, making it a heating element in electric furnaces, soldering irons, and electric irons.

[0003] During the production of nickel-chromium heating alloy wire, it is necessary to stretch and adjust its fineness. The ultra-fine nickel-chromium heating alloy wire stretching control device is used to control the guiding effect during the stretching operation of ultra-fine nickel-chromium heating alloy wire. In the existing control devices, most directly use a single roller structure for guidance, that is, add a roller structure at the front or end of the stretching equipment. When the nickel-chromium heating alloy wire is introduced / extracted, it passes over the roller. Such a guiding control structure is prone to horizontal movement of the nickel-chromium heating alloy wire, which can easily lead to the breakage of the nickel-chromium heating alloy wire. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects in the prior art and provide a stretching control device for ultra-fine nickel-chromium electrothermal alloy wire.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] This invention discloses a drawing control device for ultra-fine nickel-chromium heating alloy wire, used to control the guiding of ultra-fine nickel-chromium heating alloy wire during drawing operations. It includes a housing and several detachable control wire guides assembled within the housing. The housing is composed of an upper housing and a lower housing, each with multiple mounting slots along its width. The control wire guides are engaged within these mounting slots. Each control wire guide has a hollow cylindrical structure, and both ends have a flared opening structure with a gradually decreasing diameter from the outside to the inside (ensuring smoother drawing of the nickel-chromium heating alloy wire during insertion and withdrawal, reducing wear, and preventing breakage). The housing and the control wire... A limiting mechanism is provided between the guide tubes to limit the control wire guide tubes. In use, this device is installed at the front or end of the ultra-fine nickel-chromium electrothermal alloy wire stretching equipment to guide the ultra-fine nickel-chromium electrothermal alloy wire into / out of the stretching equipment. Several control wire guide tubes are installed inside the housing of this device, allowing multiple ultra-fine nickel-chromium electrothermal alloy wires to be guided and assisted in stretching simultaneously. Furthermore, the control wire guide tubes in this device are detachably connected. This structural design allows the control wire guide tubes to be replaced and adjusted according to actual needs (by replacing the control wire guide tube according to the model of the electrothermal alloy wire to adapt the orifice diameter of the control wire guide tube to the electrothermal alloy wire), thus improving the applicability of the device.

[0007] Preferably, the limiting mechanism includes transverse limiting rings disposed at both ends and the middle of the control guide wire conduit. Transverse limiting grooves are provided in the upper and lower housings at corresponding positions of the transverse limiting rings. The transverse limiting rings engage in the transverse limiting grooves. This structural arrangement ensures that after the control guide wire conduit is installed, it will not move laterally due to the engaging and limiting effect of the transverse limiting rings and transverse limiting grooves, thus guaranteeing the stability of the control guide wire conduit after installation.

[0008] Preferably, the limiting mechanism further includes a circumferential positioning protrusion disposed below or above the outer wall of the control guide wire conduit. A circumferential positioning groove is provided in the upper or lower housing at the corresponding position of the circumferential positioning protrusion. The circumferential positioning protrusion is engaged in the circumferential positioning groove. This structural arrangement ensures that after the control guide wire conduit is installed, the engagement and limiting effect of the circumferential positioning protrusion and the circumferential positioning groove will prevent circumferential rotation, further ensuring the stability of the control guide wire conduit after installation.

[0009] Preferably, the contact surfaces of the upper and lower housings are provided with a number of aligning protrusions and a number of aligning grooves that are staggered. The aligning protrusions and aligning grooves on the upper and lower housings are aligned and engaged with each other. This structural arrangement ensures that after the upper and lower housings are assembled, the aligning and engaging action of the aligning protrusions and aligning grooves prevents misalignment between the upper and lower housings. This ensures the stability of the entire housing assembly and the stability of the control wire guide after installation.

[0010] Preferably, the upper housing and the lower housing are fixedly connected by bolts.

[0011] Preferably, the two ends of the upper and lower housings are fastened together by fastening members. The fastening members have a "C"-shaped structure, which improves the tightness of the assembly of the upper and lower housings through the fastening effect of the fastening members.

[0012] Preferably, the upper and lower housings are provided with fastening grooves at both ends that are adapted to the fastening member, and the fastening member is fastened in the fastening groove.

[0013] Preferably, the fastener has a threaded hole on its outer side, and a locking pin is inserted into the threaded hole. The end of the locking pin has a thread structure that matches the threaded hole. This structure allows the fastener to be locked by the locking pin after it is engaged, ensuring stable installation.

[0014] Preferably, the upper and lower housings are provided with positioning holes at their ends, and the end of the locking pin extends into the positioning hole, which can ensure the stability of the upper and lower housings after installation.

[0015] Preferably, the bottom of the lower housing is provided with a mounting bracket, which has a "U" shaped structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The control wire guide in this device is detachable. This structure allows the control wire guide to be replaced and adjusted according to actual needs. That is, the device can replace the control wire guide according to the model of the heating alloy wire to make the diameter of the control wire guide match the heating alloy wire, thus improving the applicability of the device. In addition, the guiding control device with this guide structure has excellent guiding effect. At the same time, the nickel-chromium heating alloy wire in the control wire guide will not move laterally and is less likely to break.

[0018] The device has a limiting mechanism between the housing and the control lead wire guide. The limiting mechanism consists of a lateral limiting ring and a lateral limiting groove, and a circumferential positioning protrusion and a circumferential positioning groove. The lateral limiting ring and the lateral limiting groove can ensure that the control lead wire guide will not move laterally, and the circumferential positioning protrusion and the circumferential positioning groove can ensure that the control lead wire guide will not rotate circumferentially, thus ensuring the stability of the control lead wire guide after installation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the control guide wire installation structure in this invention;

[0021] Figure 3 This is an exploded view of the present invention;

[0022] Figure 4 This is another perspective view of the exploded view of the present invention;

[0023] Figure 5 This is a bottom view of the exploded view of the present invention;

[0024] Figure 6 This is a schematic diagram of the control guide wire conduit structure in this invention;

[0025] Figure 7 This is a schematic diagram of the lower shell structure in this invention.

[0026] Reference numerals: 101, upper housing; 102, lower housing; 2, fastening element; 201, locking pin; 202, threaded hole; 3, control wire guide; 301, flared structure; 302, lateral limiting retaining ring; 303, circumferential positioning protrusion; 4, mounting bracket; 5, positioning hole; 6, fastening groove; 7, assembly groove; 8, lateral limiting retaining groove; 9, circumferential positioning groove; 10, alignment groove; 11, alignment protrusion. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 -Appendix Figure 7 This further illustrates the specific embodiments of the ultra-fine nickel-chromium electrothermal alloy wire stretching control device of the present invention. The ultra-fine nickel-chromium electrothermal alloy wire stretching control device of the present invention is not limited to the descriptions in the following embodiments.

[0028] Example 1:

[0029] This embodiment provides a device for controlling the stretching of an ultra-fine nickel-chromium heating alloy wire, such as... Figures 1-7As shown, a control guide for controlling the stretching operation of ultra-fine nickel-chromium heating alloy wire includes a housing and several detachable control wire guides 3 assembled inside the housing. The housing is composed of an upper housing 101 and a lower housing 102. Multiple assembly slots 7 are provided in the upper housing 101 and the lower housing 102 along the width direction. The control wire guides 3 are engaged and assembled in the assembly slots 7. The control wire guides 3 adopt a hollow cylindrical structure. Both ends of the control wire guides 3 adopt a flared structure 301 with the diameter gradually decreasing from the outside to the inside (to ensure that the nickel-chromium heating alloy wire is more smoothly introduced or led out of the control wire guides 3, less prone to wear, and prevents breakage). A limit mechanism is provided between the housing and the control wire guides 3 to limit the control wire guides 3.

[0030] By adopting the above technical solution:

[0031] When in use, this device is installed at the front or end of an ultra-fine nickel-chromium electrothermal alloy wire stretching device to guide and control the ultra-fine nickel-chromium electrothermal alloy wire into / out of the stretching device. The device housing contains several control wire guide tubes 3, so multiple ultra-fine nickel-chromium electrothermal alloy wires can be guided and assisted for stretching at the same time. Furthermore, the control wire guide tubes 3 in this device are detachably connected. This structural design allows the control wire guide tubes 3 to be replaced and adjusted according to actual needs (the control wire guide tube 3 is replaced according to the model of the electrothermal alloy wire to make the aperture of the control wire guide tube 3 compatible with the electrothermal alloy wire), thus improving the applicability of the device.

[0032] Example 2

[0033] Based on Embodiment 1, in this embodiment, the limiting mechanism includes transverse limiting rings 302 disposed at both ends and the middle of the control guide wire 3. Transverse limiting grooves 8 are provided in the upper housing 101 and the lower housing 102 at corresponding positions of the transverse limiting rings 302, and the transverse limiting rings 302 are engaged in the transverse limiting grooves 8.

[0034] The limiting mechanism also includes a circumferential positioning protrusion 303 located below or above the outer wall of the control wire guide tube 3. A circumferential positioning groove 9 is provided in the upper housing 101 or the lower housing 102 at the corresponding position of the circumferential positioning protrusion 303, and the circumferential positioning protrusion 303 is engaged in the circumferential positioning groove 9.

[0035] Several aligning protrusions 11 and several aligning grooves 10 are staggeredly distributed on the contact surfaces of the upper housing 101 and the lower housing 102. The aligning protrusions 11 and the aligning grooves 10 on the upper housing 101 and the lower housing 102 are aligned and engaged with each other. This structural arrangement ensures that after the upper housing 101 and the lower housing 102 are assembled, the aligning and engaging action of the aligning protrusions 11 and the aligning grooves 10 will prevent misalignment between the upper housing 101 and the lower housing 102. This ensures the stability of the assembly of the entire housing and the stability of the control wire guide 3 after installation.

[0036] The upper housing 101 and the lower housing 102 are fixedly connected by bolts.

[0037] By adopting the above technical solution:

[0038] After installation, the control wire guide tube 3 will not move laterally due to the engagement of the lateral limiting ring 302 and the lateral limiting groove 8, and will not rotate circumferentially due to the engagement of the circumferential positioning protrusion 303 and the circumferential positioning groove 9, thus ensuring the stability of the control wire guide tube 3 after installation.

[0039] Example 3

[0040] Based on Embodiment 1, in this embodiment, the two ends of the upper shell 101 and the lower shell 102 are fastened and fixed by fastening member 2, which adopts a "C" shaped structure.

[0041] Both ends of the upper housing 101 and the lower housing 102 are provided with fastening grooves 6 that are adapted to the fastening member 2, and the fastening member 2 is fastened in the fastening grooves 6.

[0042] The outer side of the fastener 2 is provided with a threaded hole 202, and a locking pin 201 is inserted into the threaded hole 202. The end of the locking pin 201 has a threaded structure that is compatible with the threaded hole 202.

[0043] The upper housing 101 and the lower housing 102 are provided with positioning holes 5 at their ends. The end of the locking pin 201 extends and is inserted into the positioning hole 5, which can ensure the stability of the upper housing 101 and the lower housing 102 after installation.

[0044] The bottom of the lower housing 102 is provided with a mounting bracket 4, which adopts a "U" shaped structure.

[0045] By adopting the above technical solution:

[0046] The fastening action of the fastening component 2 improves the tightness of the assembly of the upper housing 101 and the lower housing 102. After the fastening component 2 is engaged, it can be locked by the locking pin 201 to ensure stable installation.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A tensioning control device for ultra-fine nickel-chromium electrothermal alloy wire, used to control the guide during the tensioning operation of ultra-fine nickel-chromium electrothermal alloy wire, characterized in that: Includes a housing and several detachable control lead wire conduits (3) assembled in the housing. The housing is composed of an upper housing (101) and a lower housing (102) spliced ​​together. Multiple assembly slots (7) are provided in the upper housing (101) and the lower housing (102) along the width direction. The control lead wire conduits (3) are engaged and assembled in the assembly slots (7). The control guide wire (3) adopts a hollow cylindrical structure. Both ends of the control guide wire (3) adopt a flared mouth structure (301) with the diameter gradually decreasing from the outside to the inside. A limiting mechanism is provided between the shell and the control guide wire (3). The limiting mechanism is used to limit the control guide wire (3). The limiting mechanism includes transverse limiting rings (302) disposed at both ends and the middle of the control lead wire guide (3). The upper housing (101) and the lower housing (102) are provided with transverse limiting grooves (8) at corresponding positions of the transverse limiting rings (302). The transverse limiting rings (302) are engaged in the transverse limiting grooves (8). The limiting mechanism also includes a circumferential positioning protrusion (303) disposed below or above the outer wall of the control lead wire guide (3). A circumferential positioning slot (9) is provided in the upper housing (101) or lower housing (102) at the corresponding position of the circumferential positioning protrusion (303). The circumferential positioning protrusion (303) is engaged in the circumferential positioning slot (9). The upper shell (101) and the lower shell (102) have a number of matching protrusions (11) and a number of matching grooves (10) distributed in a staggered manner on their contact surfaces. The matching protrusions (11) and the matching grooves (10) on the upper shell (101) and the lower shell (102) are matched and engaged with each other.

2. The ultra-fine nickel-chromium electrothermal alloy wire stretching control device according to claim 1, characterized in that: The upper housing (101) and the lower housing (102) are fixedly connected by bolts.

3. The ultra-fine nickel-chromium electrothermal alloy wire stretching control device according to claim 1, characterized in that: The two ends of the upper shell (101) and the lower shell (102) are fastened together by fasteners (2), which have a "C" shaped structure.

4. The ultra-fine nickel-chromium electrothermal alloy wire stretching control device according to claim 3, characterized in that: The upper housing (101) and the lower housing (102) are provided with fastening grooves (6) at both ends that are adapted to the fastening member (2), and the fastening member (2) is fastened in the fastening groove (6).

5. The ultra-fine nickel-chromium electrothermal alloy wire stretching control device according to claim 4, characterized in that: The fastener (2) has a threaded hole (202) on its outer side, and a locking pin (201) is inserted into the threaded hole (202). The end of the locking pin (201) has a threaded structure that matches the threaded hole (202).

6. The ultra-fine nickel-chromium electrothermal alloy wire stretching control device according to claim 5, characterized in that: The upper housing (101) and the lower housing (102) are provided with positioning holes (5) at their ends, and the end of the locking pin (201) extends into the positioning hole (5).

7. The ultra-fine nickel-chromium electrothermal alloy wire stretching control device according to claim 5, characterized in that: The bottom of the lower housing (102) is provided with a mounting bracket (4), which adopts a "U" shaped structure.

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