Auxiliary feeding device for prefabricated component reinforcing steel wire rolling

Abstract

The utility model relates to a kind of prefabricated component reinforcing steel bar thread rolling auxiliary feeding devices, it includes linear module, the mobile end of the lead screw drive mechanism and a pair of symmetrically arranged fixed clamp of setting in the linear module, a pair of adjusting clamp of setting in the mobile end of the lead screw drive mechanism, and crimping strip is set on the adjusting clamp by multiple elastic members, the moving direction of the linear module, lead screw drive mechanism and elastic member is mutually parallel arrangement, the fixed clamp and adjusting clamp form the reinforcing steel clamping gap of adjustable width between, the moving path of the crimping strip sequentially passes through the adjusting clamp and fixed clamp, and crimping surface is relative reinforcing steel circumferential surface arrangement.The utility model has the advantage of auxiliary improvement thread rolling efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of precast reinforced concrete component production, and in particular to an auxiliary feeding device for rolling reinforcing bars in precast components. Background Technology

[0002] The rebar thread rolling machine is a machine that uses advanced rib-stripping and rolling technology to process straight threads at the connection ends of rebars. The rebars processed by this machine have continuous and dense straight threads, excellent comprehensive mechanical properties, increased tensile strength by 20-30%, fatigue strength by 40-60%, and corrosion resistance by 50-200%, with the connection strength of the rebars exceeding that of the parent material. The rebar thread rolling machine plays a crucial role in the production of precast reinforced concrete components, significantly improving the quality of rebars and the safety of building structures through its efficient, energy-saving, and low-consumption processing methods.

[0003] Chinese patent CN217666141U discloses a rebar thread rolling machine, which includes a clamping assembly for limiting and fixing the position of the rebar, a cutting assembly for removing burrs from the ends of the rebar, and a thread rolling assembly for rolling the ends of the processed rebar. The clamping assembly, the cutting assembly, and the thread rolling assembly are arranged sequentially. The cutting assembly includes a limiting baffle for limiting the horizontal position of the rebar and a driving assembly for driving a saw blade to cut the ends of the rebar.

[0004] The existing technical solutions mentioned above have the following drawbacks: The above-mentioned rebar thread rolling machine clamps and fixes the rebar by clamping the clamping assembly, and then drives the thread rolling assembly to roll the ends of the rebar. After the thread rolling is completed, the clamping assembly needs to be released first, the threaded rebar needs to be removed, and then a new rebar needs to be clamped before the thread rolling operation can continue. The loading and unloading of rebar and the thread rolling operation interfere with each other, affecting production efficiency and failing to meet the needs of large-scale rebar thread rolling processing. Utility Model Content

[0005] The present invention aims to address the aforementioned shortcomings in the prior art by providing an auxiliary feeding device for thread rolling of reinforcing bars in precast components, which has the advantage of improving thread rolling efficiency.

[0006] The above-mentioned objective of this utility model is achieved through the following technical solution: An auxiliary feeding device for thread rolling of precast steel bars includes a linear module, a screw drive mechanism disposed at the moving end of the linear module, a pair of symmetrically arranged fixed clamps, a pair of adjustable clamps disposed at the moving end of the screw drive mechanism, and a crimping strip disposed on the adjustable clamps by a plurality of elastic elements. The linear module, the screw drive mechanism, and the elastic elements are arranged in parallel directions. An adjustable steel bar clamping gap is formed between the fixed clamps and the adjustable clamps. The moving path of the crimping strip passes through the adjustable clamps and the fixed clamps in sequence, and the crimping surface is arranged relative to the circumferential surface of the steel bar.

[0007] By adopting the above technical solution, after the rebar is threaded, the screw drive mechanism operates and adjusts the rebar clamping gap between the two sets of fixed clamps and adjusting clamps. This allows the fixed clamps and adjusting clamps at the processing position to release the threaded rebar. Under the action of the elastic element, the pressing surface of the crimping strip continues to tightly adhere to the circumferential surface of the rebar, providing a stable and uniform clamping force to prevent the rebar from shaking or slipping during movement. Meanwhile, the fixed clamps and adjusting clamps at the upper and lower material positions hold the rebar to be threaded. Then, the linear module starts, driving the screw drive mechanism at its moving end to move along a preset direction, causing the rebar to be threaded to move to the threading position for threading. The process involves moving the threaded rebar to the loading / unloading position for feeding, then the next rebar pushes the threaded rebar away and inserts it between the crimping strip and the fixed clamp. The screw drive mechanism can also adjust the distance between a pair of clamps and temporarily limit the crimping strip, allowing it to work with the fixed clamp to form a suitable rebar clamping gap. This gap can be adjusted according to different diameter rebars to accommodate various specifications of rebar, ensuring accurate and stable feeding of the rebar to the threading assembly for threading. This effectively avoids the interference between rebar loading / unloading and threading operations in traditional methods, greatly improving production efficiency.

[0008] The present invention is further configured such that the linear module is a linear motor module, a synchronous belt type linear module, or a lead screw type linear module.

[0009] By adopting the above technical solutions, linear motor modules are preferred. Linear motor modules have advantages such as fast response speed, high positioning accuracy, and stable operation. They can accurately transport steel bars to the designated position in a short time, reduce waiting time, and further improve thread rolling efficiency. In addition, synchronous belt type linear modules have the characteristics of simple structure and low cost, and are suitable for scenarios where the accuracy requirements are not particularly high but mass production is required. Screw type linear modules are known for their high precision and high rigidity, which can ensure the stability of steel bars during the transportation process and avoid affecting the thread rolling quality due to vibration or deviation.

[0010] The present invention is further configured such that: the lead screw drive mechanism includes a clamping seat disposed on the moving end of the linear module, a lead screw motor disposed on the clamping seat, and a pair of transmission nuts slidably connected to the clamping seat and threadedly connected to the lead screw shaft of the lead screw motor; the pair of fixed clamps are symmetrically disposed on the clamping seat; and the pair of adjusting clamps are respectively disposed on the pair of transmission nuts.

[0011] By adopting the above technical solution, after the lead screw motor starts, it drives the lead screw shaft to rotate, which in turn drives a pair of transmission nuts to move linearly along the direction of the lead screw shaft. Since a pair of adjusting clamps are respectively set on a pair of transmission nuts, the adjusting clamps will also move accordingly, thereby changing the steel bar clamping gap between the adjusting clamps and the fixed clamps. This design makes the clamping and releasing operation of steel bars more flexible and efficient, and can adapt to the feeding needs of steel bars of different diameters.

[0012] The present invention is further configured such that the plurality of elastic elements are evenly distributed along the length direction of the crimping strip.

[0013] By adopting the above technical solution, the uniformly distributed elastic element can ensure that the crimping strip provides uniform and stable clamping force to the steel bar in the entire length direction. This helps to prevent the steel bar from shifting or shaking due to uneven force during movement, thereby improving the accuracy and stability of the thread rolling process.

[0014] The present invention is further configured such that: the elastic element includes an adjustment hole formed on the adjustment clamp, an adjustment post disposed on the crimping strip and inserted into the adjustment hole with a gap, and a tension spring sleeved on the adjustment post, wherein the two ends of the tension spring are respectively disposed on the adjustment hole and the adjustment post.

[0015] By adopting the above technical solution, when the adjusting clamp moves, the adjusting column will make relative movement in the adjusting hole, while the tension spring provides a stable elastic restoring force, so that the crimping strip is always tightly attached to the circumferential surface of the steel bar. This design not only simplifies the structure, but also improves the reliability and durability of the elastic element.

[0016] The present invention is further configured such that: the opening of the adjusting hole is provided with a retaining ring sleeved on the adjusting column.

[0017] By adopting the above technical solution, the retaining ring can effectively prevent the adjusting column from coming out of the adjusting hole during the movement, ensuring the normal operation of the elastic element; at the same time, the retaining ring can also play a certain sealing role, preventing dust or debris from entering the adjusting hole and affecting the movement of the adjusting column.

[0018] The present invention is further configured such that: a baffle that is slidably embedded in the adjustment hole is provided at the end of the adjustment column.

[0019] By adopting the above technical solution, the baffle can further increase the contact area between the adjusting column and the adjusting hole, and improve the stability of the movement; at the same time, the baffle can also play a certain limiting role to prevent the adjusting column from excessively deviating or tilting during the movement.

[0020] The present invention is further configured such that: the cross-section of the crimping strip is approximately inverted L-shaped, and the crimping surface of the crimping strip is arc-shaped and concave.

[0021] By adopting the above technical solution, the inverted L-shaped cross-section design enables the crimping strip to provide clamping force while also limiting the position of the reinforcing bar, ensuring that the reinforcing bar can accurately and stably enter the thread rolling assembly for thread rolling. The concave arc-shaped crimping surface can better fit the circumferential surface of reinforcing bars of different specifications, providing uniform and stable clamping force and preventing the reinforcing bar from sliding or shifting during the thread rolling process.

[0022] In summary, the beneficial technical effects of this utility model are as follows: the auxiliary feeding device realizes the seamless connection of feeding, rolling and unloading in the process of rebar thread rolling. Its structure is compact and its operation is reliable, which significantly improves the production continuity of rebar thread rolling operation. It is especially suitable for the thread rolling of large batches and multi-specification rebars, effectively reducing the intensity of manual operation and error rate, and providing strong technical support for the efficient production of reinforced concrete precast components. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the auxiliary feeding device of this utility model.

[0024] Figure 2 This is a schematic diagram showing the connection relationship between the lead screw drive mechanism, the fixed clamp, and the adjusting clamp of this utility model.

[0025] Figure 3 This is a schematic diagram showing the connection relationship between the elastic element, adjusting clamp, and crimping strip of this utility model.

[0026] In the diagram, 1 is the linear module; 2 is the lead screw drive mechanism; 21 is the clamp; 22 is the lead screw motor; 23 is the transmission nut; 3 is the fixed clamp; 4 is the adjusting clamp; 5 is the elastic element; 51 is the adjusting hole; 52 is the adjusting column; 53 is the retaining ring; 54 is the baffle; 55 is the tension spring; and 6 is the crimping strip. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model clearer and easier to understand, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Reference Figure 1This utility model discloses an auxiliary feeding device for rebar rolling of precast components, comprising a linear module 1, a screw drive mechanism 2 disposed at the moving end of the linear module 1, a pair of symmetrically arranged fixed clamps 3, a pair of adjustable clamps 4 disposed at the moving end of the screw drive mechanism 2, and a crimping strip 6 disposed on the adjustable clamps 4 by multiple elastic elements 5. The linear module 1 is configured as a linear motor module. The moving directions of the linear module 1, the screw drive mechanism 2, and the elastic elements 5 are arranged parallel to each other. An adjustable rebar clamping gap is formed between the fixed clamps 3 and the adjustable clamps 4. The moving path of the crimping strip 6 passes sequentially through the adjustable clamps 4 and the fixed clamps 3, and the crimping surface is arranged relative to the circumferential surface of the rebar.

[0029] After the rebar is rolled, the screw drive mechanism 2 is activated and adjusts the rebar clamping gap between the two sets of fixed clamps 3 and adjusting clamps 4, so that the fixed clamps 3 and adjusting clamps 4 at the processing position release the rolled rebar. Under the action of the elastic element 5, the pressing surface of the crimping strip 6 continues to be tightly attached to the circumferential surface of the rebar, providing a stable and uniform clamping force to prevent the rebar from shaking or slipping during movement. Meanwhile, the fixed clamps 3 and adjusting clamps 4 at the upper and lower material positions clamp the rebar to be rolled. Then, the linear module 1 is activated, driving the screw drive mechanism 2 at its moving end to move along a preset direction, so that the rebar to be rolled moves to the rolling position for the rolling operation. After the rolled rebar moves to the upper and lower material positions for unloading, the next rebar pushes the rolled rebar to disengage and insert it between the crimping strip 6 and the fixed clamps 3. The linear motor module has advantages such as fast response speed, high positioning accuracy, and stable operation. It can accurately deliver steel bars to the designated position in a short time, reduce waiting time, and further improve the efficiency of thread rolling. The screw drive mechanism 2 can also adjust the distance between a pair of adjusting clamps 4 and temporarily limit the movement with the auxiliary pressing strip 6, so that it cooperates with the fixed clamp 3 to form a steel bar clamping gap of appropriate width. This gap can be adjusted according to steel bars of different diameters to meet the feeding requirements of steel bars of various specifications, ensuring that steel bars can be accurately and stably delivered to the thread rolling assembly for thread rolling processing. This effectively avoids the problem of mutual interference between steel bar loading and unloading and thread rolling operation in the traditional method, and greatly improves production efficiency.

[0030] Reference Figure 2The lead screw drive mechanism 2 includes a clamp 21 located at the moving end of the linear module 1, a lead screw motor 22 located on the clamp 21, and a pair of transmission nuts 23 slidably connected to the clamp 21 and threadedly connected to the lead screw shaft of the lead screw motor 22. A pair of fixed clamps 3 are symmetrically arranged on the clamp 21, and a pair of adjusting clamps 4 are respectively arranged on the pair of transmission nuts 23. After the lead screw motor 22 is started, it drives the lead screw shaft to rotate, thereby driving the pair of transmission nuts 23 to move linearly along the direction of the lead screw shaft. Since the pair of adjusting clamps 4 are respectively arranged on the pair of transmission nuts 23, the adjusting clamps 4 will also move accordingly, thereby changing the steel bar clamping gap between them and the fixed clamps 3. This design makes the clamping and releasing operation of steel bars more flexible and efficient, and can adapt to the feeding needs of steel bars of different diameters.

[0031] Reference Figure 3 These elastic elements 5 are evenly distributed along the length of the crimping strip 6. Each elastic element 5 includes an adjustment hole 51 on the adjusting clamp 4, an adjusting post 52 on the crimping strip 6 and interlocked with the adjusting hole 51, a retaining ring 53 in the opening of the adjusting hole 51 and fitted onto the adjusting post 52, a baffle 54 at the end of the adjusting post 52 and slidably embedded in the adjusting hole 51, and a tension spring 55 fitted onto the adjusting post 52. The two ends of the tension spring 55 are respectively located on the retaining ring 53 of the adjusting hole 51 and the baffle 54 of the adjusting post 52. When the adjusting clamp 4 moves, the adjusting post 52 moves relative to the adjusting hole 51, while the tension spring 55 provides a stable elastic restoring force, ensuring that the crimping strip 6 always fits tightly against the circumferential surface of the reinforcing bar. This design not only simplifies the structure but also improves the reliability and durability of the elastic elements 5. The retaining ring 53 effectively prevents the adjusting column 52 from dislodging from the adjusting hole 51 during movement, ensuring the normal operation of the elastic element 5. Simultaneously, the retaining ring 53 also provides a sealing effect, preventing dust or debris from entering the adjusting hole 51 and affecting the movement of the adjusting column 52. The baffle 54 further increases the contact area between the adjusting column 52 and the adjusting hole 51, improving the smoothness of movement. At the same time, the baffle 54 also provides a limiting effect, preventing excessive offset or tilting of the adjusting column 52 during movement.

[0032] In addition, the cross-section of the crimping strip 6 is approximately inverted L-shaped, and the crimping surface of the crimping strip 6 is concave in an arc shape. The inverted L-shaped cross-section design allows the crimping strip 6 to provide clamping force while also limiting the position of the reinforcing bar, ensuring that the reinforcing bar can accurately and stably enter the thread rolling assembly for thread rolling. The concave in an arc shape can better conform to the circumferential surface of reinforcing bars of different specifications, providing uniform and stable clamping force and preventing the reinforcing bar from slipping or shifting during the thread rolling process.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A kind of prefabricated component reinforcing bar thread rolling auxiliary feeding device, it is characterized by: The device includes a linear module (1), a screw drive mechanism (2) located at the moving end of the linear module (1), a pair of symmetrically arranged fixed clamps (3), a pair of adjustable clamps (4) located at the moving end of the screw drive mechanism (2), and a crimping strip (6) provided on the adjustable clamps (4) by a plurality of elastic elements (5). The linear module (1), the screw drive mechanism (2) and the elastic elements (5) are arranged in parallel directions. An adjustable bar clamping gap is formed between the fixed clamps (3) and the adjustable clamps (4). The moving path of the crimping strip (6) passes through the adjustable clamps (4) and the fixed clamps (3) in sequence, and the crimping surface is arranged relative to the circumferential surface of the bar.

2. The auxiliary feeding device for rebar rolling of precast components according to claim 1, characterized in that: The linear module (1) is configured as a linear motor module, a synchronous belt type linear module (1), or a lead screw type linear module (1).

3. The auxiliary feeding device for rebar rolling of precast components according to claim 1, characterized in that: The lead screw drive mechanism (2) includes a clamp (21) disposed at the moving end of the linear module (1), a lead screw motor (22) disposed on the clamp (21), and a pair of transmission nuts (23) slidably connected to the clamp (21) and threadedly connected to the lead screw shaft of the lead screw motor (22). The pair of fixed clamps (3) are symmetrically disposed on the clamp (21), and the pair of adjusting clamps (4) are respectively disposed on the pair of transmission nuts (23).

4. The auxiliary feeding device for rebar rolling of precast components according to claim 1, characterized in that: The plurality of elastic elements (5) are evenly distributed along the length of the crimping strip (6).

5. The auxiliary feeding device for thread rolling of reinforcing bars in precast components according to claim 1, characterized in that: The elastic element (5) includes an adjustment hole (51) opened on the adjustment clamp (4), an adjustment post (52) disposed on the crimping strip (6) and inserted into the adjustment hole (51) with a gap, and a tension spring (55) sleeved on the adjustment post (52). The two ends of the tension spring (55) are respectively disposed on the adjustment hole (51) and the adjustment post (52).

6. The auxiliary feeding device for thread rolling of reinforcing bars in precast components according to claim 5, characterized in that: The opening of the adjustment hole (51) is provided with a retaining ring (53) that is sleeved on the adjustment post (52).

7. The auxiliary feeding device for rebar rolling of precast components according to claim 6, characterized in that: The end of the adjusting column (52) is provided with a baffle (54) that is slidably embedded in the adjusting hole (51).

8. The auxiliary feeding device for rebar rolling of precast components according to claim 1, characterized in that: The cross-section of the crimping strip (6) is approximately inverted L-shaped, and the crimping surface of the crimping strip (6) is concave in an arc shape.

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