Wire unwinding support

Abstract

The utility model relates to a wire unwinding support which comprises a base, a wire unwinding device and a wire winding device. A plurality of positioning rods are arranged on the rotating frame, a round hole is formed in the bottom of the rotating frame, and a cylinder can be inserted into the round hole; the limiting structure comprises a plurality of rolling wheels, the rolling wheels are rotationally arranged in the circular holes, and the rolling wheels are horizontally arranged; the rolling wheels are transversely arranged in the round holes, after the cylinders are inserted into the round holes, the cylinders make contact with the rolling wheels, when the cylinders rotate, the outer walls of the cylinders only make contact with the rolling wheels, and the contact area of the rolling wheels and the outer walls of the cylinders is much smaller than the contact area of the cylinders and the round holes in the prior art. Compared with the prior art, the wear of the cylinder is smaller after long-time use.

Description

Technical Field

[0001] This application relates to the technical field of screw manufacturing, and particularly relates to a wire unwinding bracket. Background Art

[0002] Screws are processed and formed through steps such as the wire rod process, wire drawing process, cold heading (heading) process, thread rolling process, heat treatment process, etc. The original wire rod manufactured in the wire rod process is wound into a bundle and placed on a bracket for unwinding during the wire drawing process.

[0003] The existing bracket includes a base, a rotating frame, and four positioning rods. The rotating frame can rotate on the base. The positioning rods are fixedly installed on the rotating frame. The original wire rod is placed on the rotating frame, and the original wire rod is wound into a bundle and closely adheres to the four positioning rods. By pulling one end of the bundle of the original wire rod, the original wire rod drives the unwinding bracket to rotate. The rotating frame and the base achieve the function of the rotating frame rotating on the base through a cylinder inserted into a circular hole. When the cylinder rotates between the circular holes, the cylinder will come into large-area contact with the inner wall of the circular hole. After long-term use, both the surface of the cylinder and the inner wall of the circular hole will be worn, resulting in an obvious blocking feeling when the cylinder rotates in the circular hole, and even a situation where it cannot rotate, finally causing the original wire rod to be unable to enter the next process normally. Summary of the Invention

[0004] The embodiments of this application provide a wire unwinding bracket to solve the problem that the cylinder of the bracket is severely worn after long-term use in the related art.

[0005] In a first aspect, a wire unwinding bracket is provided, which includes:

[0006] A base, on which a cylinder is provided;

[0007] A rotating frame, on which several positioning rods are provided. There is a circular hole at the bottom of the rotating frame for the cylinder to be inserted into;

[0008] A limiting structure, which includes several rollers. The rollers are rotatably arranged in the circular hole and are horizontally arranged;

[0009] When the cylinder is inserted into the circular hole, the cylinder is in contact with the rollers.

[0010] In some embodiments, the limiting structure further includes several control rods;

[0011] Several control rods are circumferentially arranged around the inner wall of the circular hole in the circular hole, and the rollers are rotatably connected to the control rods.

[0012] In some embodiments, the control rods are slidably connected to the inner wall of the circular hole, and a first spring is provided between the control rods and the inner wall of the circular hole.

[0013] In some embodiments, it further includes a plurality of driving members, and the number of the plurality of driving members corresponds to that of the plurality of control rods one by one;

[0014] The driving member includes a driving part and a driven part. The driving part and the driven part are arranged oppositely, and the surface of the driven part opposite to the driving part is an inclined surface;

[0015] The control rod extends in the opposite direction of the opening direction of the round hole and is connected to the driven part, and the driven part is slidably connected in the round hole.

[0016] In some embodiments, a disc is connected to the bottom of the plurality of driving parts. When the cylinder is completely inserted into the round hole, the cylinder presses the disc, and a second spring is arranged between the disc and the inner wall of the round hole.

[0017] In some embodiments, it further includes a plurality of sliders;

[0018] The plurality of sliders correspond to the plurality of positioning rods one by one. The slider is connected to the positioning rod, and the slider is slidably connected to the rotating frame.

[0019] In some embodiments, a bolt is provided on the slider. The bolt passes through the slider. When the bolt is tightened, the bolt presses the rotating frame to fix the position of the slider.

[0020] The embodiment of the present application provides a wire unwinding bracket. Since the present application horizontally arranges rollers in the round hole, after the cylinder is inserted into the round hole, the cylinder contacts the rollers. When the cylinder rotates, only the outer wall of the cylinder contacts the rollers. The contact area between the rollers and the outer wall of the cylinder is much smaller than the contact area between the cylinder and the round hole in the prior art. Therefore, after long-term use, the wear of the cylinder in the present application is smaller than that in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0022] Figure 1 It is a schematic structural diagram provided by the embodiment of the present application;

[0023] Figure 2 It is a structural sectional view provided by the embodiment of the present application;

[0024] Figure 3 It is a schematic structural diagram of the positioning rod provided by the embodiment of the present application;

[0025] Figure 4 For Figure 2 the enlarged view of the structure at A in

[0026] Figure 5For Figure 4 Enlarged view of the structure at position B in

[0027] In the figure: 1, base; 2, cylinder; 3, rotating frame; 4, positioning rod; 5, round hole; 6, limiting structure; 61, roller; 62, control rod; 63, first spring; 7, driving member; 71, driving part; 72, driven part; 73, disc; 8, slider. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some but not all of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0029] The embodiments of this application provide a wire unwinding bracket, which can solve the problem that the cylinder is severely worn after long-term use in the related art.

[0030] Please refer to Figures 1 to 5 , a wire unwinding bracket, which includes: a base 1, a cylinder 2 is provided on the base 1, a square plate is fixed to the bottom of the base 1, and the entire unwinding bracket is located on the square plate. As Figure 1 shown, a direction plate is added to the bottom of the base 1, that is, the contact area between the entire unwinding bracket and the ground is increased, so that the unwinding bracket is more stable during use and the situation of tipping to one side is avoided;

[0031] a rotating frame 3, several positioning rods 4 are provided on the rotating frame 3, a round hole 5 is provided at the bottom of the rotating frame 3, and the round hole 5 is used for the cylinder 2 to be inserted. The rotating frame 3 is composed of a central cylinder and four cross frames, and the four cross frames are cross-connected to the side of the central cylinder to avoid the situation of the central cylinder tilting. As Figure 1 shown, the round hole 5 is opened at the bottom of the central cylinder, the number of the positioning rods 4 is four, and the four positioning rods 4 are respectively arranged on the four cross frames;

[0032] a limiting structure 6, the limiting structure 6 includes several rollers 61, the rollers 61 are rotatably arranged in the round hole 5, and the rollers 61 are horizontally arranged. When the cylinder 2 is inserted into the round hole 5, the cylinder 2 is in contact with the rollers 61;

[0033] The limiting structure further includes several control rods 62;

[0034] several control rods 62 are circumferentially arranged around the inner wall of the round hole 5 in the round hole 5, the rollers 61 are rotatably connected to the control rods 62, the vertically distributed rollers 61 are in a group, and each group of rollers 61 is rotatably connected to the same control rod 62, and multiple groups of rollers 61 are circumferentially and evenly distributed in the round hole 5;

[0035] The control rod 62 is slidably connected to the inner wall of the circular hole 5. A first spring 63 is provided between the control rod 62 and the inner wall of the circular hole 5. The installation method of the first spring 63 is as Figure 5 shown;

[0036] It further includes a plurality of driving members 7, and the number of the plurality of driving members 7 corresponds to the number of the plurality of control rods 62 one by one;

[0037] The driving member 7 includes a driving part 71 and a driven part 72. The driving part 71 and the driven part 72 are arranged oppositely. The surface of the driven part 72 opposite to the driving part 71 is an inclined surface, as Figure 4 shown;

[0038] The control rod 62 extends in the opposite direction of the opening of the circular hole 5 and is connected to the driven part 72. The driven part 72 is slidably connected in the circular hole 5. A T-shaped notch is opened at the top of the inner wall of the circular hole 5. The control rod 62 extends in the opposite direction of the opening of the circular hole 5 and forms a convex block. The convex block is connected to the driven part 72. At the same time, the convex block is slidably connected in the T-shaped notch, as Figure 4 shown. The first spring 63 is arranged in the T-shaped notch;

[0039] The bottoms of the plurality of driving parts 71 are connected with a disc 73. When the cylinder 2 is completely inserted into the circular hole 5, the cylinder 2 presses the disc 73. A second spring is provided between the disc 73 and the inner wall of the circular hole 5. The installation method of the second spring is as Figure 4 shown.

[0040] It further includes a plurality of sliders 8;

[0041] The plurality of sliders 8 correspond to the plurality of positioning rods 4 one by one. The sliders 8 are connected to the positioning rods 4, and the sliders 8 are slidably connected to the rotating frame 3.

[0042] Bolts are provided on the sliders 8. The bolts pass through the sliders 8. When the bolts are tightened, the bolts press the rotating frame 3 to fix the positions of the sliders 8.

[0043] When installing the device, first determine the installation position of the positioning rod 4 on the rotating frame 3 according to the radius of the original coil of wire rod, that is, the distance between the central cylinder and the positioning rod 4 is slightly less than the radius of the original coil of wire rod. Fix the positioning rod 4 on the slider 8 with bolts, and then fix the slider 8 on the rotating frame 3 with bolts. After fixing the four positioning rods 4 on the four cross frames respectively, finally insert the cylinder 2 into the circular hole 5;

[0044] During the process of inserting the cylinder 2 into the circular hole 5, before the cylinder 2 touches the disc 73, the roller 61 and the control rod 62 will be pulled towards the inner wall of the circular hole 5 by the first spring 63 in the circular hole 5, and at this time, the passive part 72 and the active part 71 are not in contact, avoiding excessive friction between the outer wall of the cylinder 2 and the roller 61 when the cylinder 2 is inserted into the circular hole 5. When the cylinder 2 presses the disc 73, the disc 73 is pressed and moves deeper into the circular hole 5 and presses the second spring. Until the active part 71 on the disc 73 contacts the inclined surface of the passive part 72, the active part 71 relies on the inclined surface to move the passive part 72, the control rod 62, and the roller 61 towards the middle of the circular hole 5, and the first spring 63 is stretched until the roller 61 closely adheres to the outer wall of the cylinder 2;

[0045] After the installation is completed, place the original wire rod on the rotating frame 3. At the same time, the original wire rod is wound into a bundle around the four positioning rods 4. Pull one end of the original wire rod, and the original wire rod drives the rotating frame 3 to rotate on the base 1. At this time, the cylinder 2 is clamped in the middle by the roller 61 in the circular hole 5 and rotates. During the rotation process, the total contact area between the cylinder 2 and the roller 61 is much smaller than the contact area between the cylinder 2 and the inner wall of the circular hole 5 in the prior art. As a result, after two identical cylinders 2 are used for the same period of time, the surface of the cylinder 2 in this application is less worn, and there will be no obvious sense of blockage.

[0046] When disassembling the device, similarly, first separate the cylinder 2 from the circular hole 5, that is, first separate the rotating frame 3 from the base 1. The specific operation is to directly pick up the rotating frame 3 and other parts on it from the base 1, and then disassemble the positioning rod 4 and the slider 8 on the rotating frame 3 by removing the bolts;

[0047] During the process of pulling the cylinder 2 out of the circular hole 5, the disc 73 is ejected towards the opening of the circular hole 5 by the second spring. During the process of the disc 73 moving towards the opening of the circular hole 5, that is, during the process of the active part 71 gradually moving towards the opening of the circular hole 5, due to the action of the first spring 63, the passive part 72, the control rod 62, and the roller 61 will move towards the inner wall of the circular hole 5 until the passive part 72 is completely separated from the active part 71. The passive part 72, the control rod 62, and the roller 61 are quickly pulled towards the inner wall of the circular hole 5 by the first spring 63 until the first spring 63 is in a natural state. At this time, the roller 61 is close to the inner wall of the circular hole 5 in the circular hole 5 and there is a large gap between the roller 61 and the cylinder 2, which facilitates the extraction of the cylinder 2 from the circular hole 5 and avoids excessive friction between the cylinder 2 and the roller 61 during the extraction process.

[0048] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0049] It should be noted that in the present application, 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 actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0050] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A wire unwinding support, characterized in that: include: A base (1), wherein a cylinder (2) is provided on the base (1); A rotating frame (3), wherein a plurality of positioning rods (4) are arranged on the rotating frame (3), and a circular hole (5) is arranged at the bottom of the rotating frame (3), wherein the circular hole (5) is used for inserting the cylinder (2); A limiting structure (6), the limiting structure (6) comprising a plurality of rollers (61), the rollers (61) being rotatably disposed in the circular holes (5), and the rollers (61) being disposed horizontally; When the cylinder (2) is inserted into the circular hole (5), the cylinder (2) fits the roller (61).

2. The wire unwinding support according to claim 1, characterized in that: The limiting structure (6) also includes a plurality of control rods (62); A plurality of control rods (62) are circumferentially arranged in the circular hole (5) around the inner wall of the circular hole (5), and the roller (61) is rotatably connected to the control rods (62).

3. The wire unwinding support according to claim 2, characterized in that: The control rod (62) is slidably connected to the inner wall of the circular hole (5), and a first spring (63) is provided between the control rod (62) and the inner wall of the circular hole (5).

4. The wire unwinding support according to claim 2, characterized in that: It also includes a plurality of driving members (7), wherein the number of the driving members (7) corresponds to the number of the control rods (62) in a one-to-one manner; The driving member (7) comprises an active member (71) and a passive member (72), the active member (71) and the passive member (72) are arranged opposite to each other, and the surface of the passive member (72) opposite to the active member (71) is an inclined surface; The control rod (62) extends in a direction opposite to the opening direction of the circular hole (5) and is connected to the passive component (72), and the passive component (72) is slidably connected in the circular hole (5).

5. The wire unwinding support according to claim 4, characterized in that: A disk (73) is connected to the bottom of the plurality of active members (71). When the cylinder (2) is fully inserted into the circular hole (5), the cylinder (2) squeezes the disk (73). A second spring is provided between the disk (73) and the inner wall of the circular hole (5).

6. The wire unwinding support according to claim 1, characterized in that: Also includes a plurality of sliders (8); The plurality of slide blocks (8) correspond to the plurality of positioning rods (4) one by one, the slide blocks (8) are connected to the positioning rods (4), and the slide blocks (8) are slidably connected to the rotating frame (3).

7. The wire unwinding support according to claim 6, characterized in that: The slider (8) is provided with a bolt, and the bolt passes through the slider (8). When the bolt is tightened, the bolt presses the rotating frame (3) to fix the position of the slider (8).

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