A drawing wire-drawing machine for one-time automatic wire drawing

Abstract

This utility model discloses a traction drawing machine for automatically completing wire drawing in one operation, relating to the field of orthodontic wire production technology. The utility model includes a traction drawing machine device. One side of the traction drawing machine device is equipped with a feeding device for feeding orthodontic wire drawing and forming raw materials. A traction mechanism is provided at one end of the traction drawing machine device near the feeding device for traction feeding of the raw materials. The traction mechanism includes a tensioning component comprising a second limiting roller rotatably installed on the lower side of one side of the traction drawing machine device. When the diameter of the feeding coil decreases, causing the raw material wire to loosen, the servo motor starts, driving the active bevel gear through the rotating shaft, which in turn drives the driven bevel gear and the drive shaft to rotate, causing the cam to rotate accordingly. This causes the first limiting roller frame to move downwards, thereby actively increasing the "V"-shaped path traversed by the raw material wire. This allows for real-time compensation of tension loss caused by changes in the diameter of the feeding disc, re-tightening the loose wire.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic wire production technology, specifically to a traction wire drawing machine for automatically completing wire drawing in one operation. Background Technology

[0002] As a key consumable in orthodontic treatment, metal orthodontic wires have extremely stringent requirements for dimensional accuracy, surface quality, and consistency of mechanical properties. In their manufacturing process, precision wire drawing is the core step that determines the quality of the final product.

[0003] Wire drawing machines are typically equipped with a feeding device that releases the coiled raw filaments and guides them into the drawing host. However, during continuous production, as the raw filaments on the feeding tray are continuously consumed, the winding diameter of the feeding coil will continuously decrease. If the output speed of the feeding device remains constant, its output linear speed will gradually decrease, causing the raw filaments to experience a decrease in tension and gradual loosening in the section between the feeding and traction hosts. The instability of the raw filament tension will directly lead to uneven deformation and stress within the drawing die, resulting in problems such as product wire diameter fluctuations, surface scratches, and even filament breakage. Existing technologies either rely on operators to manually adjust the guide roller position based on experience, but the accuracy cannot be guaranteed; or simple spring or counterweight tensioning mechanisms are used, but the tension adjustment is limited and the adaptability is poor.

[0004] Therefore, this utility model provides a traction wire drawing machine for automatically completing wire drawing in one operation. Utility Model Content

[0005] In order to solve the problem that the tension of raw wires will be relaxed due to the reduction of the diameter of the feeding plate in existing wire drawing machines, the purpose of this utility model is to provide a traction wire drawing machine for automatically completing wire drawing in one go.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a traction wire drawing machine for automatically completing wire drawing in one pass, comprising a traction wire drawing machine device, wherein a feeding device for feeding orthodontic wire drawing and forming raw materials is installed on one side of the traction wire drawing machine device, and a traction mechanism is provided at one end of the traction wire drawing machine device near the feeding device for traction feeding of the raw materials, the traction mechanism comprising: The tensioning assembly includes a second limiting roller rotatably mounted on the lower side of one side of the traction drawing machine, a third limiting roller that works in conjunction with the second limiting roller mounted on the upper side of the traction drawing machine, a movable frame slidably mounted on one side of the traction drawing machine, a drive shaft rotatably mounted on the lower part of the movable frame, cams fixedly mounted on both ends of the drive shaft, a first limiting roller fixedly mounted on the opposite side of the two cams, a driven bevel gear fixedly mounted on one end of the drive shaft, a rotating shaft rotatably mounted on the upper side of the traction drawing machine, a driving bevel gear rotatably mounted on the lower side of one side of the movable frame, a drive block slidingly passing through the middle of the driving bevel gear, the driving bevel gear and the driven bevel gear meshing with each other, and a drive assembly at the bottom end of the rotating shaft. An adjustment component, located at the bottom of the movable frame, is used to adjust the height of the movable frame.

[0007] Preferably, the adjustment assembly includes two cylinders fixedly installed on one side of the upper part of the traction wire drawing machine, and the bottom end of the moving frame is fixedly installed on the drive end of the cylinders.

[0008] Preferably, the drive assembly includes a servo motor fixedly installed on one side of the top of the traction wire drawing machine, and the bottom end of the rotating shaft is fixedly installed on the drive end of the servo motor.

[0009] Preferably, two symmetrically distributed drive blocks are fixedly installed on the outer surface of the rotating shaft, and both drive blocks slide through the middle of the active bevel gear.

[0010] Preferably, two symmetrically distributed limiting rods are fixedly installed on the outer surfaces of the first limiting roller, the second limiting roller, and the third limiting roller, and a sliding sleeve is slidably engaged on the outer surfaces of the first limiting roller, the second limiting roller, and the limiting rods are slidably engaged in the middle of the sliding sleeve.

[0011] Preferably, the upper part of the traction wire drawing machine has two symmetrically distributed slide grooves, and the two drive shafts are slidably locked in the middle of the slide grooves on both sides.

[0012] Beneficial effects This invention provides a traction wire drawing machine for automatically completing wire drawing in one pass. Compared with the prior art, it has the following advantages: 1. When the diameter of the feeding coil decreases, causing the raw material filament to loosen, the servo motor starts and drives the active bevel gear through the rotating shaft, which in turn drives the driven bevel gear and the drive shaft to rotate. The cam fixed on the drive shaft rotates accordingly, causing the first limit roller frame to move downward, thereby actively increasing the "V" shaped path traversed by the raw material filament. This allows for real-time compensation for tension loss caused by changes in the diameter of the feeding disc, tightening the loose filament again, and avoiding problems such as filament breakage, loosening, or uneven product wire diameter caused by tension fluctuations.

[0013] 2. In this application, when the equipment is initially loaded or the raw material coils of different diameters are changed, the control system can control the extension and retraction of the cylinder to raise or lower the moving frame and the entire set of mechanisms such as the first limit roller and transmission gear installed on it. This allows for rapid and significant changes in the tension of the raw material yarn's "V" shaped path, thereby achieving coarse adjustment and pre-setting of the tension. This enables the equipment to flexibly adapt to various initial coils from full roll to large diameter, eliminating the need for cumbersome manual adjustments, significantly shortening preparation time, and improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the No. 2 limiting roller structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the tensioning component structure of this utility model.

[0017] Figure 4 This is another structural schematic diagram of the tensioning component of this utility model.

[0018] Figure 5 This is a partial cross-sectional structural diagram of the present invention.

[0019] In the diagram: 1. Traction wire drawing machine; 11. Feeding equipment; 2. Traction mechanism; 21. Tensioning assembly; 211. Servo motor; 212. Rotating shaft; 2121. Drive block; 213. Driving bevel gear; 214. Driven bevel gear; 215. Cam; 2151. Drive shaft; 216. First limit roller; 2161. Limiting rod; 217. Sliding sleeve; 218. Second limit roller; 2181. Third limit roller; 219. Moving frame; 22. Adjustment assembly; 221. Cylinder; 222. Slide groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5This utility model provides a technical solution: a traction wire drawing machine for automatically completing wire drawing in one operation, including a traction wire drawing machine device 1. A feeding device 11 for feeding orthodontic wire drawing forming raw materials is installed on one side of the traction wire drawing machine device 1. The cylindrical raw material coil is installed on the feeding device 11, and driven by its motor, it cooperates with the control system of the traction wire drawing machine device 1 to feed the material. Since the coil is wound around the cylinder one turn at a time, the diameter of the cylinder gradually decreases during use, causing the coil to gradually loosen. A traction mechanism 2 is provided at one end of the traction wire drawing machine device 1 near the feeding device 11 for traction feeding of the raw material, thereby solving the problem that the tension cannot be effectively adjusted when the diameter of the wound coil gradually decreases. The traction mechanism 2 includes: The tensioning assembly 21 includes a second limiting roller 218 rotatably mounted on the lower part of one side of the traction drawing machine 1. A third limiting roller 2181, which works in conjunction with the second limiting roller 218, is mounted on the upper side of the traction drawing machine 1. After the raw material coil is pulled out from one end by the feeding device 11, it first passes through the lower part of the second limiting roller 218, then through the upper part of the third limiting roller 2181, and then through the lower part of the first limiting roller 216 before entering the traction drawing machine 1 for drawing. This makes the flow path of the raw material coil form a Z-shape, which facilitates the adjustment of its tension. A movable frame 219 is slidably provided on one side of the traction drawing machine 1. A drive shaft 2151 is rotatably mounted on the lower part of the movable frame 219. The drive shaft 2151 is connected and fixed to the movable frame 219 through a deep groove ball bearing. Cams 215 are fixedly mounted on both ends of the drive shaft 2151. The two cams 215 are positioned relative to each other. A first limiting roller 216 is fixedly installed on the side. When adjusting the tension, the rotation of the drive shaft 2151 can drive the cam 215 to rotate, causing the first limiting roller 216 to move downward and adjust its position to adjust its tension. A driven bevel gear 214 is fixedly installed at one end of the drive shaft 2151. A rotating shaft 212 is rotatably installed on the upper side of the traction wire drawing machine 1. An active bevel gear 213 is rotatably installed on the lower side of the moving frame 219. The drive block 2121 slides through the middle of the active bevel gear 213. The active bevel gear 213 and the driven bevel gear 214 are meshed and connected. The rotation of the active bevel gear 213 can drive the driven bevel gear 214 to rotate, causing the drive shaft 2151 to rotate, that is, driving the cam 215 to rotate and adjust the position of the first limiting roller 216. A drive assembly is provided at the bottom end of the rotating shaft 212. Adjustment component 22 is located at the lower part of the movable frame 219 and is used to adjust the height of the movable frame 219.

[0022] The adjustment assembly 22 includes two cylinders 221 fixedly installed on one side of the upper part of the traction wire drawing machine 1. The bottom end of the moving frame 219 is fixedly installed on the drive end of the cylinders 221. Driven by the cylinders 221, the moving frame 219 can be moved upward, so that it can synchronously drive the active bevel gear 213, the driven bevel gear 214, its drive shaft 2151, and the first limit roller 216 to move upward synchronously, so that it can quickly make a wide range of adjustments according to the diameter of the coil inside the drum during the initial feeding.

[0023] The drive assembly includes a servo motor 211 fixedly installed on one side of the top of the traction wire drawing machine 1, and the bottom end of the rotating shaft 212 fixedly installed on the drive end of the servo motor 211. The servo motor 211 is model 110ST-M04030, and can drive the rotating shaft 212 to rotate under its drive.

[0024] Two symmetrically distributed drive blocks 2121 are fixedly installed on the outer surface of the rotating shaft 212. Both drive blocks 2121 slide through the middle of the active bevel gear 213. The drive blocks 2121 have a cuboid structure, which enables the active bevel gear 213 to rotate synchronously with the rotating shaft 212 and slide along the axial direction of the rotating shaft 212.

[0025] Two symmetrically distributed limiting rods 2161 are fixedly installed on the outer surfaces of the first limiting roller 216, the second limiting roller 218, and the third limiting roller 2181. A sliding sleeve 217 is slidably engaged on the outer surfaces of the first limiting roller 216, the second limiting roller 218, and the third limiting roller 2181. The limiting rods 2161 are slidably engaged in the middle of the sliding sleeve 217. The limiting rods 2161 are used to limit the sliding sleeve 217 to prevent rotation, so that the sliding sleeve 217 slides along the axial direction of the first limiting roller 216, the second limiting roller 218, and the third limiting roller 2181. When the coil is guided by the first limiting roller 216, the second limiting roller 218, and the third limiting roller 2181, the coil is sequentially arranged in the middle of the sliding sleeve 217, which can realize the lateral positioning of the raw material yarn and prevent the yarn from deviating.

[0026] The upper part of the traction wire drawing machine 1 has two symmetrically distributed slide grooves 222. Both sides of the two drive shafts 2151 are slidably locked in the middle of the slide grooves 222. The slide grooves 222 can provide concessions for the up and down movement of the two ends of the drive shafts 2151, and can guide them to ensure the stability of the up and down movement.

[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] During operation, the coiled raw material coil is mounted on the feeding device 11, the raw material wire end is drawn out, and the raw material wire sequentially passes around the lower part of the sliding sleeve 217 on the second limit roller 218, the upper part of the sliding sleeve 217 on the third limit roller 2181, and finally the lower part of the sliding sleeve 217 on the first limit roller 216. After forming a zigzag path in the shape of a Chinese character "ji", the raw material wire enters the interior of the traction wire drawing machine device 1. When initially feeding or replacing raw material coils of different diameters, the air cylinder 221 is activated, and the expansion and contraction of the air cylinder 221 drives the movable frame 219 to change the initial height position of the first limit roller 216, so as to quickly adjust the tightness of the "ji"-shaped path, adapt to different initial coil diameters, and realize a wide range of preset tension values; During the wire drawing production process, as the diameter of the coil on the feeding device 11 gradually decreases, the raw material wire tends to relax and the tension degree decreases. At this time, the servo motor 211 is activated to drive the rotating shaft 212 to rotate. The rotation of the rotating shaft 212, in cooperation with the driving block 2121, synchronously drives the driving bevel gear 213 to rotate. The driving bevel gear 213 drives the meshed driven bevel gear 214, which in turn drives the driving shaft 2151 and the two cams 215 fixed thereon to rotate together. This rotation pushes the entire frame body equipped with the first limit roller 216 to move obliquely downward. The downward movement of the first limit roller 216 increases the length of the "ji"-shaped path of the raw material wire, re-tightens the relaxed wire material, thereby automatically and accurately compensating for the tension lost due to the reduction of the diameter of the discharging coil, so that the raw material wire can smoothly enter the main wire drawing machine under constant tension.

[0029] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present utility model have been illustrated and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A traction wire drawing machine for automatically completing wire drawing in one pass, comprising traction wire drawing machine equipment (1), characterized in that: The traction drawing machine (1) is equipped with a feeding device (11) for feeding orthodontic wire drawing raw materials on one side. The traction drawing machine (1) is provided with a traction mechanism (2) at one end near the feeding device (11) for traction feeding of the raw materials. The traction mechanism (2) includes: The tensioning assembly (21) includes a second limiting roller (218) rotatably mounted on the lower part of one side of the traction drawing machine (1), a third limiting roller (2181) cooperating with the second limiting roller (218) mounted on the upper side of the traction drawing machine (1), a movable frame (219) slidably mounted on one side of the traction drawing machine (1), a drive shaft (2151) rotatably mounted on the lower part of the movable frame (219), and cams (215) fixedly mounted on both ends of the drive shaft (2151). The two cams (215) are positioned relative to each other. A limit roller (216) is fixedly installed on the side, a driven bevel gear (214) is fixedly installed at one end of the drive shaft (2151), a rotating shaft (212) is rotatably installed on the upper side of the traction wire drawing machine (1), an active bevel gear (213) is rotatably installed on the lower side of the moving frame (219), a drive block (2121) slides through the middle of the active bevel gear (213), the active bevel gear (213) and the driven bevel gear (214) mesh with each other, and a drive assembly is provided at the bottom end of the rotating shaft (212). An adjustment component (22) is provided at the lower part of the movable frame (219) for adjusting the height of the movable frame (219).

2. The traction wire drawing machine for automatically completing wire drawing in one pass according to claim 1, characterized in that: The adjustment assembly (22) includes two cylinders (221) fixedly installed on one side of the upper part of the traction wire drawing machine (1), and the bottom end of the moving frame (219) is fixedly installed on the driving end of the cylinders (221).

3. The traction wire drawing machine for automatically completing wire drawing in one operation according to claim 1, characterized in that: The drive assembly includes a servo motor (211) fixedly installed on one side of the top of the traction wire drawing machine (1), and the bottom end of the rotating shaft (212) fixedly installed on the drive end of the servo motor (211).

4. A traction wire drawing machine for automatically completing wire drawing in one pass according to claim 1, characterized in that: Two symmetrically distributed drive blocks (2121) are fixedly installed on the outer surface of the rotating shaft (212), and both drive blocks (2121) slide through the middle of the active bevel gear (213).

5. A traction wire drawing machine for automatically completing wire drawing in one pass according to claim 1, characterized in that: Two symmetrically distributed limiting rods (2161) are fixedly installed on the outer surfaces of the first limiting roller (216), the second limiting roller (218), and the third limiting roller (2181). A sliding sleeve (217) is slidably engaged on the outer surfaces of the first limiting roller (216), the second limiting roller (218), and the third limiting roller (2181). The limiting rods (2161) are slidably engaged in the middle of the sliding sleeve (217).

6. A traction wire drawing machine for automatically completing wire drawing in one pass according to claim 1, characterized in that: The upper part of the traction wire drawing machine (1) has two symmetrically distributed slide grooves (222), and the two drive shafts (2151) are slidably locked in the middle of the slide grooves (222) on both sides.

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