A conveying device for thread rolling and thread rolling equipment

Abstract

The present invention relates to a conveying device and a thread rolling equipment for thread rolling, the conveying device for thread rolling comprises a conveying frame, a conveying roller is arranged on the conveying frame, a transmission driving member is used to drive each conveying roller to rotate, so that the head end of the rod moves forward to load into the thread rolling machine or the head end of the rod moves reversely to unload and exit the thread rolling machine, and a lifting mechanism for lifting the tail end of the rod is also arranged on the conveying frame, the lifting mechanism comprises a supporting structure for supporting the tail end of the rod and a lifting driving member for driving the supporting structure to move up and down, and the supporting structure has a high position higher than each conveying roller in the stroke of up and down movement so that the rod is separated from each conveying roller during thread rolling, and also has a low position lower than each conveying roller so that loading is performed before thread rolling or unloading is performed after thread rolling. The present invention effectively solves the problem in the prior art that the conveying roller and the anchor bolt with large swing during thread rolling are worn out faster and the noise is large, and the thread jumps during thread rolling due to the continuous collision and friction between the anchor bolt and multiple conveying rollers.

Description

Technical Field

[0001] The invention relates to a conveying device for thread rolling and thread rolling equipment, belonging to the technical field of thread rolling processing. Background Art

[0002] High-strength anchor bolts are the core components of prestressed wind turbine foundations. Both ends of the anchor bolts are threaded and the middle is a plain rod. The length of the anchor bolts is usually 4m to 12m, and the aspect ratio of the anchor bolts is about 71:1 to 300:1. The anchor bolts need to go through processes such as flaw detection, thread rolling, anti-corrosion, and packaging during production. Among them, thread rolling is a chipless thread rolling method. The workpiece undergoes plastic deformation under the pressure of the mold and rolls out the corresponding thread. It has the advantages of high processing efficiency, high surface quality, high mechanical strength, and material saving.

[0003] In the prior art, the equipment used for thread rolling generally includes a thread rolling machine and a conveying frame arranged beside the thread rolling machine, on which a plurality of conveying rollers are installed to rotate in sequence along the conveying direction of the anchor bolt, and a driving motor for driving the conveying rollers to rotate synchronously is also arranged on the conveying frame. When the equipment is used, the driving motor drives the conveying rollers to rotate so as to drive the anchor bolts on the conveying rollers to enter the thread rolling machine, and when the thread is rolled, the anchor bolts are in contact with the supporting members of the conveying rollers, and the ends of the anchor bolts can be rolled by the thread rolling wheels in the thread rolling machine.

[0004] However, for the above-mentioned equipment, since the anchor bolt will roll due to the radial compressive stress of the rolling wheel in the thread rolling machine during thread rolling, and the anchor bolt will have a straightness error due to the processing accuracy, especially for the arc thread anchor bolt thread rolling, in the preparation process of the arc thread anchor bolt, the diameter tolerance of the blank is within the range of ±0.3mm, the curvature of the blank is less than 2mm / m, and the total length curvature is less than 0.1%. The blank does not need to be ground / finished before thread rolling. The straightness of the anchor bolt blank is usually relatively large. Therefore, different parts of the anchor bolt will show different amplitudes of swing at different times during thread rolling, especially the tail of the anchor bolt will swing more. In this case, since there are many supporting points of the anchor bolt, the anchor bolt will constantly collide and rub with the conveying rollers in contact with the support, which will not only cause the wear of the conveying rollers and the anchor bolt to accelerate, but also because the conveying rollers are usually metal, the collision between the anchor bolt and the conveying rollers will also lead to increased noise during the thread rolling process, especially in the thread rolling process of the arc thread anchor bolt, increasing the probability of anchor bolt wire jumping and reducing the qualified rate of anchor bolt thread rolling. Summary of the invention

[0005] The object of the present invention is to provide a conveying device for thread rolling to solve the problems in the prior art that, during thread rolling, anchor bolts with large swings continuously collide and rub with multiple conveying rollers, resulting in accelerated wear of conveying rollers and anchor bolts and loud noise, as well as a high probability of thread jumping during thread rolling; the object of the present invention is also to provide a thread rolling equipment to solve the above problems.

[0006] In order to achieve the above-mentioned purpose, the thread rolling transmission device in the present invention adopts the following technical scheme:

[0007] A conveying device for thread rolling, including a conveying frame for being arranged beside a thread rolling machine, the conveying frame is provided with a transmission drive and a plurality of conveying rollers arranged at intervals along the conveying direction of a rod, the transmission drive is used to drive each conveying roller to rotate, so that the head end of the rod moves forward to load into the thread rolling machine or the head end of the rod moves reversely to unload and exit the thread rolling machine, and the conveying frame is also provided with at least one lifting mechanism for lifting the tail end of the rod, the lifting mechanism includes a supporting structure for supporting the tail end of the rod and a lifting drive for driving the supporting structure to move up and down, and the supporting structure has a high position higher than each conveying roller in the stroke of up and down movement so that the rod can be separated from each conveying roller during thread rolling, and also has a low position lower than each conveying roller so that loading can be performed before thread rolling processing or unloading can be performed after thread rolling processing.

[0008] The beneficial effect of the above technical scheme is that the present invention provides a conveying device for thread rolling that is improved from the prior art. In the conveying device for thread rolling of the present invention, since a lifting mechanism for lifting the tail end of a rod is provided on the conveying frame, and since the lifting mechanism includes a supporting structure for supporting the tail end of the rod and a lifting driving member for driving the supporting structure to move up and down, the supporting structure has a high position higher than each conveying roller in the stroke of up and down movement so that the rod can be separated from each conveying roller during thread rolling, and also has a low position lower than each conveying roller so that material can be loaded before thread rolling or unloaded after thread rolling. In this way, before thread rolling or after thread rolling, the supporting structure can be driven to a low position lower than each conveying roller by the lifting driving member so that the rod is supported on each conveying roller to complete the loading or unloading of the rod; During the thread rolling process, the supporting structure can be driven to a higher position than the conveying rollers through the jacking drive member to support the rod to separate from the conveying rollers. Compared with the prior art, the rod only has a supporting point between the supporting structure, which greatly reduces the supporting points of the rod, and is beneficial to reducing the wear of the swinging rod at the supporting points. At the same time, since the rod is separated from the conveying rollers, it not only avoids the wear of the conveying rollers caused by the swinging rod, but also avoids the noise generated by the collision between the rod and the conveying rollers. In addition, the supporting structure is supported at the tail end of the rod, which can reduce the overall swing amplitude of the rod and make full use of the flexible characteristics of the slender rod. After the tail of the rod is lifted, the head end of the rod remains horizontal, and the tail is lifted, providing an inclined downward thrust to prevent the rod from jumping when rolling the wire.

[0009] Furthermore, the support structure is two support wheels arranged at intervals along a direction perpendicular to the conveying direction of the rod, and the lifting mechanism also includes a support frame for rotatably mounting each support wheel, and the rotation axis of each support wheel is used to be parallel to the conveying direction of the rod.

[0010] The beneficial effect of the above technical solution is that: since the rod will roll due to the radial compressive stress of the rolling wheel during thread rolling, two support wheels installed on the support frame and with the rotation axis parallel to the transmission direction of the rod can be rotated to form a rolling fit between the rod and the support wheels. Compared with a sliding fit, this can reduce the wear of the rod and ensure the quality of the rod.

[0011] Furthermore, the support frame includes a support plate which is horizontally arranged and connected to the output end of the jacking drive component, and two mounting columns which are vertically fixed on the support plate, and two supporting wheels are rotatably mounted on the two mounting columns respectively.

[0012] The beneficial effect of the above technical solution is that: through the support frame composed of a support plate and a mounting column, the structure of the support frame is simplified, and the rotation installation of the support wheel on the support frame is facilitated. At the same time, through the two mounting columns, the weight of the support frame can be reduced to a certain extent, which is conducive to facilitating the up and down driving of the support frame by the jacking drive component.

[0013] Furthermore, the lifting mechanism also includes a mounting frame fixed on the conveying frame and used to install the lifting drive member, the mounting frame includes a flat plate fixed on the conveying frame and a vertical plate fixedly connected to the flat plate, and the lifting drive member is fixedly installed on the plate surface of the vertical plate.

[0014] The beneficial effects of the above technical solution are: the installation of the jacking drive component on the conveying frame is facilitated by the mounting frame, and the structure of the mounting frame is simplified by the mounting frame composed of a flat plate and a vertical plate, which is conducive to the processing and manufacturing of the mounting frame. At the same time, the flat plate facilitates the fixed installation of the mounting frame on the transmission frame, and the vertical plate facilitates the fixed installation of the jacking drive component on the mounting frame, which is conducive to ensuring that the output end of the jacking drive component can output up and down movements.

[0015] Furthermore, two flat plates are provided, the vertical plates are T-shaped, the vertical plates include a mounting portion and two overlapping portions disposed on both sides of the mounting portion, the two overlapping portions are overlapped and fixed on the two flat plates respectively, and the jacking drive component is fixedly mounted on the mounting portion.

[0016] The beneficial effects of the above technical solution are: through the two flat plates, not only can the fixing between the mounting frame and the conveying frame be achieved, but also the length of the flat plates can be reduced to a certain extent, which is beneficial to reducing the weight of the mounting frame; the vertical plate arranged in a T shape can not only achieve fixed installation with the jacking drive component through the mounting part, but also through the two overlapping parts arranged on both sides of the mounting part, it is beneficial to facilitate the fixing between the vertical plate and the flat plate.

[0017] Furthermore, the support wheel is a non-metallic wear-resistant support wheel.

[0018] The beneficial effect of the above technical solution is that the non-metallic wear-resistant support wheel can not only reduce the wear of the support wheel, but also reduce the noise caused by the collision between the support wheel and the rod.

[0019] In order to achieve the above-mentioned purpose, the thread rolling equipment in the present invention adopts the following technical scheme:

[0020] A thread rolling device comprises a thread rolling machine and a conveying device for thread rolling, the conveying device for thread rolling comprises a conveying frame for being arranged beside the thread rolling machine, the conveying frame is provided with a transmission driving member and a plurality of conveying rollers arranged at intervals along the conveying direction of a rod, the transmission driving member is used to drive each conveying roller to rotate, so that the head end of the rod moves forward to be loaded into the thread rolling machine or the head end of the rod moves reversely to be unloaded and exit the thread rolling machine, the conveying frame is also provided with at least one lifting mechanism for lifting the tail end of the rod, the lifting mechanism comprises a supporting structure for supporting the tail end of the rod and a lifting driving member for driving the supporting structure to move up and down, the supporting structure has a high position higher than each conveying roller in the stroke of up and down movement so that the rod can be separated from each conveying roller during thread rolling, and also has a low position lower than each conveying roller so that loading can be performed before thread rolling processing or unloading can be performed after thread rolling processing.

[0021] The beneficial effect of the above technical scheme is that the present invention provides a thread rolling device that is improved on the prior art. In the thread rolling device of the present invention, since a lifting mechanism for lifting the tail end of the rod is provided on the conveying frame in the conveying device, and since the lifting mechanism includes a supporting structure for supporting the tail end of the rod and a lifting driving member for driving the supporting structure to move up and down, the supporting structure has a high position higher than each conveying roller in the stroke of up and down movement so that the rod can be separated from each conveying roller during thread rolling, and also has a low position lower than each conveying roller so that material can be loaded before thread rolling or unloaded after thread rolling. In this way, before thread rolling or after thread rolling, the supporting structure can be driven to be in a low position lower than each conveying roller by the lifting driving member, so that the rod is supported on each conveying roller to complete the loading or unloading of the rod; During the thread rolling process, the supporting structure can be driven to a higher position than the conveying rollers through the jacking drive member to support the rod to separate from the conveying rollers. Compared with the prior art, the rod only has a supporting point between the supporting structure, which greatly reduces the supporting points of the rod, and is beneficial to reducing the wear of the swinging rod at the supporting points. At the same time, since the rod is separated from the conveying rollers, it not only avoids the wear of the conveying rollers caused by the swinging rod, but also avoids the noise generated by the collision between the rod and the conveying rollers. In addition, the supporting structure is supported at the tail end of the rod, which can reduce the overall swing amplitude of the rod and make full use of the flexible characteristics of the slender rod. After the tail of the rod is lifted, the head end of the rod remains horizontal, and the tail is lifted, providing an inclined downward thrust to prevent the rod from jumping when rolling the wire.

[0022] Furthermore, the support structure is two support wheels arranged at intervals along a direction perpendicular to the conveying direction of the rod, and the lifting mechanism also includes a support frame for rotatably mounting each support wheel, and the rotation axis of each support wheel is used to be parallel to the conveying direction of the rod.

[0023] The beneficial effect of the above technical solution is that: since the rod will roll due to the radial compressive stress of the rolling wheel during thread rolling, two support wheels installed on the support frame and with the rotation axis parallel to the transmission direction of the rod can be rotated to form a rolling fit between the rod and the support wheels. Compared with a sliding fit, this can reduce the wear of the rod and ensure the quality of the rod.

[0024] Furthermore, the support frame includes a support plate which is horizontally arranged and connected to the output end of the jacking drive component, and two mounting columns which are vertically fixed on the support plate, and two supporting wheels are rotatably mounted on the two mounting columns respectively.

[0025] The beneficial effect of the above technical solution is that: through the support frame composed of a support plate and a mounting column, the structure of the support frame is simplified, and the rotation installation of the support wheel on the support frame is facilitated. At the same time, through the two mounting columns, the weight of the support frame can be reduced to a certain extent, which is conducive to facilitating the up and down driving of the support frame by the jacking drive component.

[0026] Furthermore, the lifting mechanism also includes a mounting frame fixed on the conveying frame and used to install the lifting drive member, the mounting frame includes a flat plate fixed on the conveying frame and a vertical plate fixedly connected to the flat plate, and the lifting drive member is fixedly installed on the plate surface of the vertical plate.

[0027] The beneficial effects of the above technical solution are: the installation of the jacking drive component on the conveying frame is facilitated by the mounting frame, and the structure of the mounting frame is simplified by the mounting frame composed of a flat plate and a vertical plate, which is conducive to the processing and manufacturing of the mounting frame. At the same time, the flat plate facilitates the fixed installation of the mounting frame on the transmission frame, and the vertical plate facilitates the fixed installation of the jacking drive component on the mounting frame, which is conducive to ensuring that the output end of the jacking drive component can output up and down movements.

[0028] Furthermore, two flat plates are provided, the vertical plates are T-shaped, the vertical plates include a mounting portion and two overlapping portions disposed on both sides of the mounting portion, the two overlapping portions are overlapped and fixed on the two flat plates respectively, and the jacking drive component is fixedly mounted on the mounting portion.

[0029] The beneficial effects of the above technical solution are: through the two flat plates, not only can the fixing between the mounting frame and the conveying frame be achieved, but also the length of the flat plates can be reduced to a certain extent, which is beneficial to reducing the weight of the mounting frame; the vertical plate arranged in a T shape can not only achieve fixed installation with the jacking drive component through the mounting part, but also through the two overlapping parts arranged on both sides of the mounting part, it is beneficial to facilitate the fixing between the vertical plate and the flat plate.

[0030] Furthermore, the support wheel is a non-metallic wear-resistant support wheel.

[0031] The beneficial effect of the above technical solution is that the non-metallic wear-resistant support wheel can not only reduce the wear of the support wheel, but also reduce the noise caused by the collision between the support wheel and the rod.

[0032] Furthermore, a raised guide wheel with a guiding surface higher than each conveying roller is rotatably installed on the thread rolling machine, so as to raise and guide the head end of the rod to enter the thread rolling machine. A lifting drive component is also provided on the thread rolling machine. The lifting drive component is used to drive the raised guide wheel to rise when loading. The lifting drive component is also used to drive the raised guide wheel to descend after the thread rolling of the head end of the rod is completed, so as to separate the guiding surface from the rod.

[0033] The beneficial effects of the above technical solution are: by raising the elevated guide wheel and guiding the guide surface, the head end of the rod protruding from the conveying device can be prevented from bending downward, which facilitates the entry of the head end of the rod into the thread rolling machine, and after the lifting mechanism supports the rod, it is also convenient to keep the rod separated from the conveying rollers horizontal, which is beneficial to ensure the thread rolling accuracy and prevent the rod from skipping when rolling the thread; the driving of the elevated guide wheel by the lifting drive member can not only realize the elevated guidance of the rod by the elevated guide wheel during loading, but also after the thread rolling of the head end of the rod is completed, the elevated guide wheel can be driven down and its guiding surface can be separated from the rod, ensuring that the rod after thread rolling is completed can be supported on the conveying rollers to complete the unloading of the rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a stereoscopic diagram of a thread rolling device in Embodiment 1 of the thread rolling device of the present invention;

[0035] Figure 2 is a three-dimensional diagram of the lifting mechanism in the embodiment 1 of the thread rolling device of the present invention;

[0036] Figure 3 is a state diagram of the thread rolling device in Example 1 of the present invention when the support wheel is in a low position;

[0037] Figure 4 This is a state diagram of the thread rolling device in Example 1 of the present invention when the support wheel is in a high position.

[0038] In the figure: 10, thread rolling machine; 11, machine body; 12, thread rolling wheel; 20, conveyor frame; 30, conveyor roller; 40, rod; 50, lifting mechanism; 51, supporting wheel; 52, double guide rod cylinder; 53, support plate; 54, mounting column; 55, flat plate; 56, vertical plate; 57, reinforcing rib; 60, proximity switch. DETAILED DESCRIPTION

[0039] Embodiment 1 of the thread rolling device of the present invention:

[0040] The present invention provides a thread rolling device that is improved on the prior art. The present invention provides a lifting mechanism for lifting the tail end of a rod on a conveying frame. Since the lifting mechanism includes a supporting structure for supporting the tail end of the rod and a lifting driving member for driving the supporting structure to move up and down, the supporting structure has a high position higher than each conveying roller and a low position lower than each conveying roller in the stroke of the up and down movement. In this way, during the thread rolling process, the supporting structure can be driven by the lifting driving member to be at a high position higher than each conveying roller to support the rod to separate from each conveying roller. Compared with the prior art, the rod only has a connection with the supporting structure. The supporting points between them greatly reduce the supporting points of the rod, which is beneficial to reducing the wear of the swinging rod at the supporting points. At the same time, since the rod is separated from the conveying rollers, it not only avoids the wear of the conveying rollers caused by the swinging rod, but also avoids the noise generated by the collision between the rod and the conveying rollers. In addition, the supporting structure is supported at the tail end of the rod, which can reduce the swing amplitude of the rod as a whole and make full use of the flexible characteristics of the slender rod. After the tail of the rod is lifted, the head end of the rod remains horizontal, and the tail is lifted, providing an inclined downward thrust to prevent the rod from jumping when rolling the wire.

[0041] Specifically, Figure 1 As shown, the thread rolling equipment includes a thread rolling machine 10 and a thread rolling conveying device, wherein the thread rolling machine 10 includes a body 11 and a pair of thread rolling wheels 12 rotatably mounted in the body 11, and the thread rolling wheels 12 are used to perform thread rolling processing on a rod 40 (an anchor in this embodiment). The thread rolling conveying device is used to convey the rod 40 when loading or unloading, and the thread rolling conveying device includes a conveying frame 20 arranged beside the thread rolling machine 10, and the conveying frame 20 is provided with a transmission drive member and a plurality of conveying rollers 30 arranged at intervals along the conveying direction of the rod 40. In this embodiment, the conveying rollers 30 are V-shaped rollers, and each conveying roller 30 is rotatably mounted on the conveying frame 20, and the rotation axis of each conveying roller 30 is perpendicular to the conveying direction of the rod 40. The transmission drive member is a transmission drive motor, which is connected to each conveying roller 30 through a sprocket chain mechanism. The transmission drive motor is used to drive each conveying roller 30 to rotate synchronously, and through the friction between each conveying roller 30 and the rod 40, the head end of the rod 40 can be moved forward to load the material into the thread rolling machine 10 or the head end of the rod 40 can be moved reversely to unload the material and exit the thread rolling machine 10.

[0042] like Figure 1 and Figure 2 As shown, the conveyor frame 20 is also provided with a lifting mechanism 50 for lifting the tail end of the rod 40, and the lifting mechanism 50 includes a supporting structure for supporting the tail end of the rod 40 and a lifting driving member for driving the supporting structure to move up and down, wherein the lifting driving member is a double-guide rod cylinder 52 in this embodiment, and the lifting mechanism 50 also includes a mounting frame fixed on the conveyor frame 20 and used to install the double-guide rod cylinder 52, as shown in FIG. Figure 2 As shown, the mounting frame includes a flat plate 55 for fixing on the conveying frame 20 and a vertical plate 56 fixedly connected to the flat plate 55, wherein the flat plate 55 is used to be fixedly installed on the conveying frame 20, two flat plates 55 are provided, the vertical plate 56 is T-shaped, the vertical plate 56 includes a mounting portion and two overlapping portions disposed on both sides of the mounting portion, the double guide rod cylinder 52 is fixedly installed on the plate surface of the mounting portion, the two overlapping portions are respectively overlapped and vertically fixed on the two flat plates 55, and reinforcing ribs 57 are provided between the two flat plates 55 and the corresponding overlapping portions.

[0043] like Figure 2 As shown, in this embodiment, the support structure is two support wheels 51 arranged at intervals along the conveying direction perpendicular to the rod 40, and both support wheels 51 are non-metallic wear-resistant support wheels. The lifting mechanism 50 also includes a support frame for rotatably mounting each support wheel 51, and the support frame includes a support plate 53 arranged horizontally and connected to the output end of the double guide rod cylinder 52 and two mounting columns 54 vertically fixed on the support plate 53. The two support wheels 51 are rotatably mounted on the two mounting columns 54, and the rotation axis of each support wheel 51 is parallel to the conveying direction of the rod 40. Figure 3 As shown, the support wheel 51 has a lower position than each conveying roller 30 in the up and down movement so as to load the material before the thread rolling process or unload the material after the thread rolling process, as shown in FIG. Figure 4 As shown, the support wheel 51 also has a high position when rolling the thread, which is higher than each conveying roller 30 so that the rod 40 can be separated from each conveying roller 30, and when the support wheel 51 is in the high position, the rod 40 is in a horizontal state or the head end of the rod 40 is horizontal and the tail end is tilted upward. Figure 1 As shown, two lifting mechanisms 50 are arranged on the conveying frame 20 at intervals along the conveying direction of the rod 40 to accommodate rods of different lengths.

[0044] like Figure 1 As shown, a proximity switch 60 arranged close to the thread rolling machine 10 is also installed on the conveying frame 20. When loading, after the rod 40 is transmitted to the proximity switch 60, the proximity switch 60 will transmit a signal to the control system, and the control system will control the output end of the double guide rod cylinder 52 to extend, so as to lift the rod 40 through the support wheel 51, so that the rod 40 is separated from each conveying roller 30.

[0045] In addition, a guide wheel (not shown in the figure) is rotatably mounted on the body 11 of the thread rolling machine 10 and is located between the thread rolling wheel 12 and the conveying frame 20. The axis of rotation of the guide wheel is perpendicular to the conveying direction of the rod 40. The guide wheel has a guide surface for elevating and guiding the head end of the rod 40. A lifting drive (not shown in the figure) is also provided on the body 11 of the thread rolling machine 10. In this embodiment, the lifting drive is a cylinder whose output end can output up and down movements. The guide wheel is rotatably mounted on the output end. The lifting drive is used to drive the lifting guide wheel to rise when loading materials, so that the guide surface of the lifting guide wheel is higher than each conveying roller 30. When loading materials, the lifting and guiding of the head end of the rod 40 is completed, which facilitates the head end of the rod 40 to enter the thread rolling machine 10 for thread rolling processing. The lifting drive is also used to drive the guide wheel to descend after the thread rolling is completed at the head end of the rod 40, so that the guide surface is separated from the rod 40, ensuring that the rod 40 after thread rolling can be supported on each conveying roller 30 to complete the unloading and conveying of the rod 40.

[0046] Embodiment 2 of the thread rolling device of the present invention:

[0047] This embodiment provides a lifting drive member different from that of embodiment 1. The difference between this embodiment and embodiment 1 is that in this embodiment, the lifting drive member is an electric push rod that outputs up and down motions at the output end. In other embodiments, the lifting drive member may also be a cylinder that outputs up and down motions at the output end.

[0048] Embodiment 3 of the thread rolling device in the present invention:

[0049] This embodiment provides a way for the head end of the rod to enter the thread rolling machine that is different from that of Embodiment 1. The difference between this embodiment and Embodiment 1 is that, in this embodiment, no elevated guide wheel is provided, that is, the head end of the rod is not elevated or guided when entering the thread rolling machine, and the rod can directly enter the thread rolling machine through the transmission rollers. In this case, after the lifting mechanism lifts the rod, the rod will have a small bend. Since the rod is long, such a small bend will not affect the accuracy of the thread rolling process.

[0050] Embodiment 4 of the thread rolling device of the present invention:

[0051] This embodiment provides a support wheel material that is different from that of Embodiment 1. The difference between this embodiment and Embodiment 1 is that, in this embodiment, the support wheel is a support wheel made of metal.

[0052] Embodiment 5 of the thread rolling device of the present invention:

[0053] This embodiment provides a number of lifting mechanisms that is different from that of Embodiment 1. The difference between this embodiment and Embodiment 1 is that in this embodiment, three lifting mechanisms are arranged at intervals along the conveying direction of the rod. In other embodiments, one, four or more lifting mechanisms may be arranged at intervals along the conveying direction of the rod.

[0054] Embodiment 6 of the thread rolling device of the present invention:

[0055] This embodiment provides a vertical plate with a shape different from that of the embodiment 1. The difference between this embodiment and the embodiment 1 is that in this embodiment, the vertical plate is rectangular, and the side of the vertical plate is fixedly connected to the side of the flat plate. In other embodiments, the rectangular vertical plates can also be overlapped and vertically fixed on the flat plate.

[0056] Embodiment 7 of the thread rolling device of the present invention:

[0057] This embodiment provides a number of flat plates that is different from that in Embodiment 1. The difference between this embodiment and Embodiment 1 is that in this embodiment, only one flat plate is provided, and the vertical plate is fixedly installed on one flat plate.

[0058] Embodiment 8 of the thread rolling device of the present invention:

[0059] This embodiment provides an installation of a lifting drive component that is different from that of Embodiment 1. The difference between this embodiment and Embodiment 1 is that, in this embodiment, no mounting frame is provided, and the lifting drive component is directly fixedly installed on the conveying frame.

[0060] Embodiment 9 of the thread rolling device of the present invention:

[0061] This embodiment provides a support frame different from that of Embodiment 1. The difference between this embodiment and Embodiment 1 is that, in this embodiment, the support plate includes a supporting plate and a vertical plate vertically fixed to the supporting plate, and the two support wheels are rotatably mounted on the vertical plate.

[0062] Embodiment 10 of the thread rolling device of the present invention:

[0063] This embodiment provides an installation of support wheels that is different from that of Embodiment 1. The difference between this embodiment and Embodiment 1 is that, in this embodiment, no support frame is provided, and two support wheels are directly rotatably installed on the output end of the jacking drive mechanism.

[0064] Embodiment 11 of the thread rolling device of the present invention:

[0065] This embodiment provides a support structure different from that of Embodiment 1. The difference between this embodiment and Embodiment 1 is that in this embodiment, the support structure is a support block, and a support groove for supporting the rod is provided on the support block.

[0066] Embodiment 12 of the thread rolling device of the present invention:

[0067] This embodiment provides a lifting drive member different from that of embodiment 1. The difference between this embodiment and embodiment 1 is that in this embodiment, the lifting drive member is an electric push rod that outputs up and down motions at the output end. In other embodiments, the lifting drive member may also be a cylinder that outputs up and down motions at the output end.

[0068] Embodiment 13 of the thread rolling device of the present invention:

[0069] This embodiment provides a conveying roller different from Embodiment 1. The difference between this embodiment and Embodiment 1 is that, in this embodiment, the conveying roller is composed of two rollers rotatably mounted on the same rotating shaft, and inclined surfaces are provided on the circumferential surfaces of the two rollers, and the rod is used to support between the inclined surfaces of the two rollers.

[0070] An embodiment of the conveying device for thread rolling in the present invention: The specific structure of the conveying device for thread rolling is the same as the conveying device for thread rolling in the above-mentioned embodiment of the thread rolling equipment, and will not be repeated here.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A conveying device for thread rolling, comprising a conveying frame for being arranged beside a thread rolling machine, the conveying frame being provided with a transmission driving member and a plurality of conveying rollers arranged at intervals along the conveying direction of the rod, the transmission driving member being used to drive each conveying roller to rotate, so that the head end of the rod moves forward to be loaded into the thread rolling machine or the head end of the rod moves reversely to be unloaded and exit the thread rolling machine, characterized in that: The conveying frame is also provided with at least one lifting mechanism for lifting the tail end of the rod, the lifting mechanism includes a supporting structure for supporting the tail end of the rod and a lifting driving member for driving the supporting structure to move up and down. The supporting structure has a high position higher than each conveying roller in the up and down movement stroke so as to lift the tail of the rod to separate the rod from each conveying roller during thread rolling and at the same time use the flexibility of the slender rod to keep the head end of the rod horizontal, and also has a low position lower than each conveying roller so as to load the material before the thread rolling process or unload the material after the thread rolling process; the supporting structure is two support wheels arranged horizontally and spaced perpendicular to the conveying direction of the rod and the rotation axes are parallel to the conveying direction of the rod.

2. The thread rolling conveying device according to claim 1, characterized in that: The lifting mechanism also includes a support frame for rotatably mounting each support wheel, the support frame includes a horizontally arranged support plate connected to the output end of the lifting drive member and two mounting columns vertically fixed on the support plate, and the two support wheels are rotatably mounted on the two mounting columns respectively.

3. The thread rolling conveying device according to claim 1 or 2, characterized in that: The lifting mechanism also includes a mounting frame fixed on the conveying frame and used to install the lifting drive member. The mounting frame includes a flat plate fixed on the conveying frame and a vertical plate fixedly connected to the flat plate. The lifting drive member is fixedly installed on the plate surface of the vertical plate.

4. The thread rolling conveying device according to claim 3, characterized in that: Two flat plates are provided, the vertical plates are T-shaped, the vertical plates include a mounting portion and two overlapping portions disposed on both sides of the mounting portion, the two overlapping portions are overlapped and fixed on the two flat plates respectively, and the jacking drive component is fixedly mounted on the mounting portion.

5. The thread rolling conveying device according to claim 1 or 2, characterized in that: The supporting wheel is a non-metallic wear-resistant supporting wheel.

6. A thread rolling device, comprising a thread rolling machine and a thread rolling conveying device, characterized in that: The thread rolling conveying device is the same as the thread rolling conveying device according to any one of claims 1 to 5.

7. The thread rolling device according to claim 6, characterized in that: The thread rolling machine is rotatably provided with an elevated guide wheel whose guiding surface is higher than the conveying rollers, so as to elevate and guide the head end of the rod to enter the thread rolling machine. The thread rolling machine is also provided with a lifting drive component, which is used to drive the elevated guide wheel to rise when loading. The lifting drive component is also used to drive the elevated guide wheel to descend after the thread rolling of the head end of the rod is completed, so as to separate the guiding surface from the rod.

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