Automatic tendon threading buffer rack device

By using an assembly method in the automatic rebar threading and buffer rack equipment, the consistent position of the chain teeth is ensured, which solves the problem of misaligned rebar arrangement, realizes the orderly and stable conveying of rebar, and reduces rework and labor costs.

CN224298036UActive Publication Date: 2026-05-29JIANHUA CONSTRUCTION MATERIALS (CHINA) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANHUA CONSTRUCTION MATERIALS (CHINA) CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing automatic rebar threading and buffer rack equipment is unstable, and the rebars are misaligned on the chain, resulting in the rebars not being arranged in an orderly manner.

Method used

The structure employs a multi-set rebar buffer rack, including a support plate, heightened chain, guide plate, blocking bar, swing bar, positioning groove, slave sprocket and main sprocket. The tooth position is ensured through assembly, avoiding welding and improving the stability of rebar conveying.

Benefits of technology

This enabled the orderly arrangement and stable delivery of steel bars, reducing rework, improving work efficiency, and lowering the labor intensity and labor costs for workers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an automatic bar penetrating and temporary storage rack device, including a plurality of groups of bar penetrating and temporary storage rack structure, and a group of bar penetrating and temporary storage rack structure includes support plate, heightening chain, guide plate, blocking rod, swing rod, positioning groove, from sprocket and main sprocket, and the device still includes frame, and the support plate is installed on the frame, and the left end and right end of support plate are installed with from sprocket and main sprocket respectively, and the heightening chain is encircled in the from sprocket and main sprocket outside of support plate, and the tooth slot of heightening chain top is higher than the upper edge of support plate, and the bottom of guide plate is installed on the left side of support plate, and the blocking rod is installed on the frame and is located between support plate and guide plate, and the bottom of swing rod is installed on the inclined plane of support plate right side. The automatic bar penetrating and temporary storage rack device of adopting the utility model, in the heightening chain installation process, adopts the assembly to ensure the tooth position, and is not the matching welding mode, improves the stability of steel bar conveying, avoids having multiple steel bars in the same group tooth slot, reduces the rework quantity, and reduces the efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of pipe piles, and more particularly to the field of buffer material racks, specifically referring to an automatic rebar-threading buffer material rack device. Background Technology

[0002] Currently, the automatic rebar threading and buffer rack equipment is unstable, and the rebars are misaligned on the chain, resulting in the rebars not being arranged in an orderly manner. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an automatic reinforcement buffer rack device that is simple in structure, easy to operate, and has a wide range of applications.

[0004] To achieve the above objectives, the automatic reinforcement buffer rack device of this utility model is as follows:

[0005] The main features of this automatic rebar-threading buffer rack device are as follows: the device includes multiple sets of rebar-threading buffer rack structures. Each set of rebar-threading buffer rack structures includes a support plate, a heightening chain, a guide plate, a blocking rod, a swing rod, a positioning groove, a driven sprocket, and a main sprocket. The device also includes a frame. The support plate is mounted on the frame. The driven sprocket and main sprocket are respectively mounted on the left and right ends of the support plate. The heightening chain surrounds the driven sprocket and main sprocket of the support plate. The heightening chain has multiple toothed grooves. The toothed grooves on the upper part of the heightening chain are higher than the upper edge of the support plate. The bottom end of the guide plate is mounted on the left side of the support plate. The blocking rod is mounted on the frame and located between the support plate and the guide plate. The blocking rod supports vertical lifting. The right side of the support plate is a downward sloping surface. The bottom end of the swing rod is mounted on the right side of the support plate. The top end of the swing rod supports rotation. The positioning groove is mounted on the right side of the support plate and located below the swing rod. The top of the positioning groove has a groove for supporting the rebar.

[0006] Preferably, the device further includes a stop groove, which is installed on the leftmost side of the top of the support plate and is located in front of the receiving tooth groove.

[0007] Preferably, the device further includes a servo motor, a swing cylinder, and a swing rod shaft. The servo motor is mounted on the frame, the end of the swing cylinder is connected to the servo motor, the front end of the swing cylinder is connected to the swing rod shaft, and the swing rod shaft is connected to the swing rod.

[0008] Preferably, the device further includes a drive shaft that passes through the main sprocket.

[0009] Preferably, the device further includes a coupling and a flat key, the flat key being mounted on the drive shaft, and the coupling being connected to the drive shaft via the flat key.

[0010] Preferably, the device further includes an automatic chain tensioning assembly, which includes a fixing member and a tensioning gear. The two ends of the fixing member are fixedly mounted on the support plate, and the middle section of the fixing member protrudes downward. The tensioning gear is mounted on the middle section of the fixing member and meshes with the inner side of the heightened chain.

[0011] Preferably, the multiple sets of ribbed buffer rack structures are all mounted on the frame, and the drive shaft passes through the main sprocket of each set of ribbed buffer rack structures.

[0012] The automatic rebar feeding and buffer rack device of this utility model adopts assembly to ensure tooth position during the installation of the heightened chain, instead of welding, which improves the stability of rebar conveying, avoids multiple rebars in the same tooth groove, reduces rework, and increases efficiency. Attached Figure Description

[0013] Figure 1 This is a front view of the automatic rebar-threading buffer rack device of this utility model.

[0014] Figure 2 This is a schematic diagram of the automatic rebar-threading buffer rack device of this utility model.

[0015] Figure 3 This is a schematic diagram of the main sprocket of the automatic rebar-threading buffer rack device of this utility model.

[0016] Figure 4 This is a schematic diagram of the heightening chain rotation process of the automatic reinforcement buffer rack device of this utility model.

[0017] Figure 5 This is a schematic diagram showing the upward blocking of the swing rod of the automatic rebar-threading buffer rack device of this utility model.

[0018] Figure 6 This is a schematic diagram showing the downward swinging rod of the automatic rebar-threading buffer rack device of this utility model.

[0019] Figure 7 This is a schematic diagram of the coupling and drive shaft of the automatic rebar buffer rack device of this utility model.

[0020] Figure label:

[0021] 1. Guide plate

[0022] 2. Blocking bar

[0023] 3. Increase chain height

[0024] 4. Swing rod

[0025] 5 positioning slots

[0026] 6 servo motors

[0027] 7. Swing cylinder

[0028] 8 couplings

[0029] 9. Main sprocket

[0030] 10 flat keys

[0031] 11 Automatic chain tensioning assembly

[0032] 21 racks

[0033] 22 Support plate

[0034] 23 from the sprocket

[0035] 24 drive shafts

[0036] 25 swing arm shaft

[0037] 26 stop groove

[0038] 27 Fasteners

[0039] 28 tensioning gears

[0040] 29 Gearbox

[0041] 30 chains

[0042] 31 sprockets

[0043] 32 springs Detailed Implementation

[0044] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0045] Please see Figures 1 to 7As shown, the automatic rib-threading buffer rack device of this utility model includes multiple sets of rib-threading buffer rack structures. Each set of rib-threading buffer rack structures includes a support plate, a heightened chain 3, a guide plate 1, a blocking rod 2, a swing rod 4, a positioning groove 5, a driven sprocket 23, and a main sprocket 9. The device also includes a frame, on which the support plate is mounted. The driven sprocket 23 and the main sprocket 9 are respectively mounted on the left and right ends of the support plate. The heightened chain 3 surrounds the driven sprocket 23 and the main sprocket 9 of the support plate. The heightened chain 3 has multiple toothed grooves. The tooth groove above the heightened chain 3 is higher than the upper edge of the support plate. The bottom end of the guide plate 1 is installed on the left side of the support plate. The blocking rod 2 is installed on the frame and located between the support plate and the guide plate 1. The blocking rod 2 supports vertical lifting. The right side of the support plate is an inclined surface sloping downwards. The bottom end of the swing rod 4 is installed on the inclined surface on the right side of the support plate. The top end of the swing rod supports rotation. The positioning groove 5 is installed on the right side of the support plate and located below the swing rod 4. The top of the positioning groove 5 has a groove for supporting reinforcing bars.

[0046] In a preferred embodiment of the present invention, the device further includes a stop groove, which is installed on the leftmost side of the top of the support plate and is located in front of the receiving tooth groove.

[0047] In a preferred embodiment of the present invention, the device further includes a servo motor 6, a swing cylinder 7, and a swing rod shaft 25. The servo motor 6 is mounted on the frame, the end of the swing cylinder 7 is connected to the servo motor 6, the front end of the swing cylinder 7 is connected to the swing rod shaft 25, and the swing rod shaft 25 is connected to the swing rod 4.

[0048] In a preferred embodiment of the present invention, the device further includes a drive shaft 24, which passes through the main sprocket 9.

[0049] In a preferred embodiment of the present invention, the device further includes a coupling 8 and a flat key 10, wherein the flat key 10 is mounted on the drive shaft 24, and the coupling 8 is connected to the drive shaft 24 via the flat key 10.

[0050] In a preferred embodiment of the present invention, the device further includes an automatic chain tensioning assembly 11, which includes a fixing member and a tensioning gear. The two ends of the fixing member are fixedly mounted on the support plate, and the middle section of the fixing member protrudes downward. The tensioning gear is mounted on the middle section of the fixing member and meshes with the inner side of the heightened chain 3.

[0051] In a preferred embodiment of this utility model, the multiple sets of through-rib buffer rack structures are all mounted on the frame, and the drive shaft 24 passes through the main sprocket 9 of each set of through-rib buffer rack structures.

[0052] The automatic rebar threading and buffer rack equipment is used in the pipe pile industry. This equipment transfers the cut and upset rebar via a chain to a threading head, which then picks up the rebar and transports it to the threading hole of the welding machine. This equipment reduces the need for rebar transfer from the upsetting machine to the welding machine, and also reduces manual threading. It aims to reduce labor intensity and save labor costs.

[0053] In a specific embodiment of this utility model, a single type of steel bar is fed forward horizontally one steel bar at a time, and can be fed back and forth, which solves the problem of the steel bars moving forward in an orderly manner on the buffer rack and avoids having multiple steel bars in a set of toothed slots.

[0054] The reinforcing bar enters the equipment through the guide plate 1. The blocking rod 2 is initially raised, at which point the reinforcing bar is blocked by the blocking rod 2.

[0055] The servo motor 6 drives the extended chain 3 to stop at the position corresponding to the guide plate 1 in the tooth groove. The blocking rod 2 falls down, and the steel bar falls into the tooth groove along the guide plate 1. Using the extended chain 3 makes the opening size of the tooth groove larger when receiving materials, which is compatible with some deviation in the stopping position of the extended chain 3 or some bending of the steel bar.

[0056] The extended chain 3 conveys the reinforcing bars forward. When one reinforcing bar falls to the position of the swing arm 4, it can buffer one bar, increasing the time for retraction and connection of subsequent reinforcing bars. If a reinforcing bar is fed into the equipment later, the last reinforcing bar on the extended chain 3 stops at the stop groove (the one before the receiving tooth groove). The extended chain 3 can connect and convey reinforcing bars during the threading process.

[0057] The rotation process of the heightened chain 3 is as follows:

[0058] 1. The servo motor 6 is amplified by the reducer 29, and the sprocket 31 is fixed on the reducer shaft and rotates together.

[0059] 2. The sprocket 31 drives the sprocket 30 to rotate, transmitting torque to the drive shaft 24.

[0060] 3. The main sprocket 9 is fixed on the drive shaft 24 and rotates together, thereby driving the heightened chain 3 to rotate.

[0061] When the swing cylinder 7 is activated, the swing rod 4 rotates forward, and the steel bar falls into the positioning groove 5 under the action of gravity for the steel bar head to be grabbed.

[0062] like Figure 5 As shown, when the swing cylinder 7 is extended, the swing rod 4 blocks upward, and the steel bar falls.

[0063] like Figure 6As shown, when the swing cylinder 7 is retracted, the swing rod 4 moves downward, and the steel bar falls down the inclined surface on the right side of the support plate 22.

[0064] Due to the length and deformation of the reinforcing bars, multiple sets of heightened chains 3 are required for synchronous conveying. The teeth of the main sprockets 9 of the heightened chains 3 are aligned, and the coupling keys of the drive shaft are also in the same position. The coupling 8 is connected to the drive shaft 24 via a flat key 10. The sides of the flat keys 10 at both ends of the coupling 8 are on the same surface, ensuring that the teeth of the heightened chains on the shaft are identical. Only when the flat keys 10 on the drive shaft 24 are on the same surface, and the teeth of the sprockets 9 are in the same position, can the reinforcing bars be ensured to fall into the same tooth groove. This saves rework during assembly and facilitates maintenance.

[0065] The automatic chain tensioning component 11 uses spring tensioning, and the tension force is basically constant, avoiding excessive force and chain jamming caused by manual tensioning.

[0066] For the specific implementation scheme of this embodiment, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0067] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0068] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means at least two.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] The automatic rebar feeding and buffer rack device of this utility model adopts assembly to ensure tooth position during the installation of the heightened chain 3, instead of welding, which improves the stability of rebar conveying, avoids multiple rebars in the same tooth groove, reduces rework, and increases efficiency.

[0071] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. An automatic rebar-threading buffer rack device, characterized in that, The device includes multiple sets of reinforcing bar buffer rack structures. Each set of reinforcing bar buffer rack structures includes a support plate, a heightening chain, a guide plate, a blocking rod, a swing rod, a positioning groove, a driven sprocket, and a main sprocket. The device also includes a frame. The support plate is mounted on the frame. The driven sprocket and main sprocket are respectively mounted on the left and right ends of the support plate. The heightening chain surrounds the driven sprocket and main sprocket of the support plate. The heightening chain has multiple toothed grooves. The toothed grooves on the upper part of the heightening chain are higher than the upper edge of the support plate. The bottom end of the guide plate is mounted on the left side of the support plate. The blocking rod is mounted on the frame and located between the support plate and the guide plate. The blocking rod supports vertical lifting. The right side of the support plate is a downward sloping surface. The bottom end of the swing rod is mounted on the right side of the support plate. The top end of the swing rod supports rotation. The positioning groove is mounted on the right side of the support plate and located below the swing rod. The top of the positioning groove has a groove for supporting reinforcing bars.

2. The automatic rebar-threading buffer rack device according to claim 1, characterized in that, The device also includes a stop groove, which is installed on the leftmost side of the top of the support plate and is located in front of the receiving tooth groove.

3. The automatic rebar-threading buffer rack device according to claim 1, characterized in that, The device also includes a servo motor, a swing cylinder, and a swing rod shaft. The servo motor is mounted on the frame, the end of the swing cylinder is connected to the servo motor, the front end of the swing cylinder is connected to the swing rod shaft, and the swing rod shaft is connected to the swing rod.

4. The automatic rebar-threading buffer rack device according to claim 1, characterized in that, The device also includes a drive shaft that passes through the main sprocket.

5. The automatic rebar-threading buffer rack device according to claim 4, characterized in that, The device also includes a coupling and a flat key, the flat key being mounted on the drive shaft, and the coupling being connected to the drive shaft via the flat key.

6. The automatic rebar-threading buffer rack device according to claim 1, characterized in that, The device also includes an automatic chain tensioning assembly, which includes a fixing member and a tensioning gear. The two ends of the fixing member are fixedly mounted on the support plate, and the middle section of the fixing member protrudes downward. The tensioning gear is mounted on the middle section of the fixing member and meshes with the inner side of the heightened chain.

7. The automatic rebar-threading buffer rack device according to claim 1, characterized in that, The multiple sets of ribbed buffer rack structures are all mounted on the frame, and the drive shaft passes through the main sprocket of each set of ribbed buffer rack structures.