Stirrup feeding mechanism for production of prefabricated box girder reinforcement cage

Abstract

The utility model relates to the technical field of reinforcement cage forming, and provides a stirrup feeding mechanism for prefabricated box girder reinforcement cage production, which comprises a rack, a sliding plate, a transmission assembly, a driving piece and a pushing rod, a stirrup magazine for hanging a stirrup framework is arranged above the rack; the rack comprises two longitudinal beams which are arranged in parallel; the sliding plates are oppositely distributed on two longitudinal beams of the rack and are in sliding fit with the longitudinal beams; the two ends of the pushing rod are connected with the sliding plates on the two longitudinal beams respectively. The pushing rod penetrates through the stirrup magazine and abuts against the tail end of a stirrup framework hung on the stirrup magazine. The driving piece drives the sliding plate and the pushing rod to synchronously move along the longitudinal beam. Under the action of the pushing rod, automatic feeding of the stirrup framework is achieved, so that welding operation of the stirrup framework and a longitudinal bar can be conveniently conducted on a subsequent station, and a basic guarantee is provided for subsequent automatic production of a prefabricated box girder steel reinforcement framework.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar skeleton forming, and in particular relates to a stirrup feeding mechanism used for producing a prefabricated box girder steel bar skeleton. Background Art

[0002] The steel skeleton structure of highway box girders is complex. In the traditional production process, after the early parts production is completed, the overall installation and forming process can only be achieved through manual work. The traditional production process is roughly as follows: 1. Install the lower longitudinal reinforcement of the bottom plate (outside the web stirrups): manually place the lower longitudinal reinforcement of the bottom plate on the jig; 2. Install and tie the bottom stirrups: manually place the bottom stirrups on the jig, and manually tie them with the lower longitudinal reinforcement of the bottom plate placed in the first step; 3. Install and tie the web stirrups: manually place the web stirrups on the jig, and lower them to the jig. Manually tie with the bottom plate stirrups placed in the second step; 4. Thread the web longitudinal reinforcement and the upper longitudinal reinforcement of the bottom plate: manually thread the web longitudinal reinforcement and the upper longitudinal reinforcement of the bottom plate, and tie them with the web stirrups; 5. Install the lower longitudinal reinforcement of the bottom plate (inside the web stirrups): manually thread the longitudinal reinforcement of the lower layer of the bottom plate contained in the web stirrups, and tie them with the web stirrups; 6. Tie the web longitudinal reinforcement: manually place and tie the inner longitudinal reinforcement of the web, and tie it with the web stirrups; 7. Adjust the steel bars: manually adjust the spacing and tightness of the above steel bars.

[0003] From the above general process, it can be found that there are many types of parts used in the production of steel bar skeletons, the installation steps are complicated, and many of the links are difficult even for manual work, with low production efficiency and difficult to guarantee quality. The patent with publication number CN116968171A discloses a box girder steel bar skeleton forming device, which stores the formed U-shaped stirrup skeleton through a stirrup suspension frame, pulls the longitudinal bars through the U-shaped stirrup skeleton through the stirrup feeding bridge, and manually pushes the U-shaped stirrup skeleton out of the stirrup suspension frame one by one, and connects the U-shaped stirrup skeleton with the longitudinal bars at the connection workstation, realizing the automatic welding forming of the box girder steel bar skeleton. However, the U-shaped stirrup skeleton on the stirrup suspension frame of the above device is manually fed, that is, after each welding work of the longitudinal bars and a U-shaped stirrup skeleton is completed, the U-shaped stirrup skeleton on the stirrup suspension frame needs to be manually pushed forward. This manual feeding method of stirrups is not conducive to improving the production efficiency of the box girder steel bar skeleton. Utility Model Content

[0004] In response to the above-mentioned problems in the prior art, the present application proposes a stirrup feeding mechanism for the production of prefabricated box girder steel frame, which can realize the automatic feeding of stirrups and provide a basic guarantee for the automated production of prefabricated box girder steel frame.

[0005] The utility model provides a stirrup feeding mechanism for the production of prefabricated box beam reinforcement skeleton, comprising: a frame, a slide plate, a transmission component, a driving member and a pushing rod;

[0006] Above the frame, there is a stirrup magazine for hanging the stirrup skeleton; the frame includes two parallel longitudinal beams;

[0007] The sliding plates are relatively distributed on the two longitudinal beams of the frame, and the sliding plates are slidably engaged with the longitudinal beams;

[0008] Both ends of the push rod are respectively connected to the sliding plates on the two longitudinal beams; the push rod passes through the stirrup magazine and abuts against the end of the stirrup skeleton hung on the stirrup magazine;

[0009] The transmission component connects the driving member and the sliding plate, and the driving member drives the sliding plate and the push rod to move synchronously along the longitudinal beam.

[0010] Further, the transmission component includes a transmission rod and sprocket assemblies provided at both ends of the transmission rod; the transmission rod is connected to the driving member; the sprocket assembly includes a driving wheel, a chain and two driven wheels; the driving wheel is connected to the transmission rod; the two driven wheels are distributed at both ends of the longitudinal beam, and the chain bypasses the driving wheel and the two driven wheels, and the chain between the two driven wheels is connected to the sliding plate.

[0011] Further, the sprocket assembly further includes a tensioning wheel; the tensioning wheel is provided between the driving wheel and the driven wheel, and the tensioning wheel is engaged with the chain.

[0012] Further, a feed connecting plate is provided at the bottom of the sliding plate; the feed connecting plate is connected to the chain.

[0013] Further, the stirrup feeding mechanism further includes a guide rail assembly; the guide rail assembly is provided on the longitudinal beam, and the sliding plate is engaged with the guide rail assembly.

[0014] Further, the guide rail assembly includes a guide rail bar and a track wheel; the guide rail bar is installed on one side of the longitudinal beam, and a longitudinal track groove is configured on the guide rail bar; a part of the track wheel is embedded in the track groove, and the track wheel is connected to the sliding plate.

[0015] Further, a set of the guide rail assemblies are respectively provided on the opposite sides of the longitudinal beam.

[0016] Further, the stirrup feeding mechanism further includes two limit sensors; the two limit sensors are respectively provided at both ends of the longitudinal beam and are located between the two driven wheels; the sliding plate is located between the two limit sensors.

[0017] Further, the stirrup feeding mechanism further includes a moving wheel set; the moving wheel set supports the bottom of the stirrup magazine and is movably engaged with it.

[0018] Further, the moving wheel set includes a support column and a roller rotatably provided at the top of the support column; the roller is in rolling cooperation with the bottom of the stirrup magazine.

[0019] The beneficial effects of the present utility model are as follows: The driving member drives the sliding plate and the push rod to move synchronously along the longitudinal beam, and the push rod abuts against the end of the stirrup skeleton suspended on the stirrup magazine. Thus, under the action of the push rod, the stirrup skeletons on the stirrup magazine move synchronously, realizing the automatic feeding of the stirrup skeletons, facilitating the subsequent operation of welding the stirrup skeletons and longitudinal bars at the subsequent workstations, and providing a basic guarantee for the automated production of the steel bar skeletons of precast box girders. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective structural view of the stirrup feeding mechanism for the production of the steel bar skeletons of precast box girders of the present utility model.

[0021] Figure 2 is Figure 1 a structural view of the sliding plate at one end of the push rod of

[0022] Figure 3 is a front view structural view of the stirrup feeding mechanism of the present utility model with a stirrup magazine cooperated above.

[0023] In the figure, 1 - push rod; 2 - frame; 3 - sliding plate; 31 - feeding connecting plate; 4 - guide rail assembly; 41 - track wheel; 42 - guide rail bar; 5 - transmission rod; 6 - driving member; 7 - sprocket assembly; 71 - driving wheel; 72 - driven wheel; 73 - tensioning wheel; 74 - chain; 8 - limit sensor; 9 - stirrup magazine; 10 - moving wheel set; 11 - stirrup skeleton. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments.

[0025] As Figures 1 - 3 shown, the stirrup feeding mechanism for the production of the steel bar skeletons of precast box girders includes: a frame 2, a sliding plate 3, a transmission assembly, a driving member 6, a push rod 1, a guide rail assembly 4, a moving wheel set 10, and two limit sensors 8.

[0026] Above the frame 2, there is a stirrup magazine 9 for hanging the stirrup skeletons 11; among them, the stirrup magazine 9 is located above the frame 2 but not connected to the frame 2. The moving wheel set 10 is supported at the bottom of the stirrup magazine 9 and is movably matched with it. The moving wheel set 10 includes support columns and rollers rotatably arranged at the tops of the support columns; the rollers are in rolling cooperation with the bottom of the stirrup magazine 9. Under the action of the moving wheel set 10, the stirrup magazine 9 can move longitudinally, where the longitudinal direction refers to the length direction of the stirrup magazine 9, which is also the length direction of the reinforcement cage of the precast box girder. The arrangement direction of the multiple stirrup skeletons 11 hung on the stirrup magazine 9 is consistent with the length direction of the stirrup magazine 9. The reinforcement cage of the precast box girder is welded by multiple longitudinal bars and multiple stirrup skeletons 11.

[0027] The stirrup magazine 9 includes a magazine bottom plate, a magazine support frame, and hanging rods arranged above the magazine bottom plate; the magazine support frame is connected to one end of the magazine bottom plate and the hanging rods. The hanging rods hang the stirrup skeletons 11, and multiple stirrup skeletons 11 pass through in sequence from the other end of the hanging rods. The magazine bottom plate supports the bottom of the stirrup skeletons 11. The moving wheel set 10 is supported at the bottom of the magazine bottom plate and is in rolling cooperation with it.

[0028] The frame 2 of the stirrup feeding mechanism includes two parallel longitudinal beams, and cross beams are connected between the longitudinal beams.

[0029] A slide plate 3 is arranged on each longitudinal beam, and the slide plate 3 is slidably matched with the longitudinal beam.

[0030] Both ends of the push rod 1 are respectively connected to the slide plates 3 on the two longitudinal beams; the push rod 1 passes through the stirrup magazine 9 and abuts against the ends of the stirrup skeletons 11 hung on the stirrup magazine 9; the push rod 1 is detachably connected to the slide plate 3.

[0031] The transmission assembly connects the driving part 6 and the slide plate 3, and the driving part 6 drives the slide plate 3 and the push rod 1 to move synchronously along the longitudinal beam.

[0032] Specifically, the transmission assembly includes a transmission rod 5 and sprocket assemblies 7 arranged at both ends of the transmission rod 5; the transmission rod 5 is connected to the driving part 6; the sprocket assembly 7 includes a driving sprocket 71, a chain 74, two driven sprockets 72, and two tensioning sprockets 73; the driving sprocket 71 is connected to the transmission rod 5; the two driven sprockets 72 are distributed at both ends of the longitudinal beam, and the chain 74 bypasses the driving sprocket 71 and the two driven sprockets 72, and the chain 74 between the two driven sprockets 72 is connected to the slide plate 3. The tensioning sprocket 73 is arranged between the driving sprocket 71 and the driven sprocket 72, the tensioning sprocket 73 cooperates with the chain 74, and the tensioning sprocket 73 is installed below the longitudinal beam of the frame 2. Under the action of the tensioning sprocket 73, the chain 74 between the two driven sprockets 72 above the longitudinal beam remains in a horizontal state. A feed connection plate 31 is arranged at the bottom of the slide plate 3; the feed connection plate 31 is connected to the chain 74 between the two driven sprockets 72.

[0033] The driving member 6 uses a driving motor. The driving motor drives the transmission rod 5 to rotate, driving the driving wheels 71 at both ends of the transmission rod 5 to rotate. Under the action of the driven wheels 72, the chain 74 is driven to move horizontally, thereby driving the feeding connecting plate 31 and the sliding plate 3 to move horizontally, and further driving the pushing rod 1 to move horizontally. Since the pushing rod 1 abuts against the end of the stirrup cage 11, the stirrup cage 11 is pushed and translated by the pushing rod 1, realizing the automatic feeding of the stirrup cage 11 to the welding station. The stirrup cage 11 is welded to the longitudinal bars of the box girder at the welding station to form the steel bar cage of the box girder.

[0034] A set of guide rail assemblies are respectively arranged on the opposite sides of the longitudinal beam.

[0035] Specifically, the guide rail assembly 4 includes a guide rail bar 42 and a track wheel 41; the guide rail bar 42 is installed on one side of the longitudinal beam, and a longitudinal track groove is configured on the guide rail bar; a part of the track wheel 41 is embedded in the track groove, and the track wheel 41 is connected to the sliding plate 3. Since the sliding plate 3 is located above the longitudinal beam, and guide rail assemblies are respectively arranged on both sides of the longitudinal beam, the sliding plate 3 is respectively provided with a matching track wheel 41 and a guide rail bar 42 on both sides of the longitudinal beam, thereby not only guiding the sliding plate 3 to move along the length direction of the longitudinal beam, but also preventing the sliding plate 3 from tipping over and ensuring the smooth movement of the pushing rod 1. The sliding plate 3 can move forward or backward along the length direction of the longitudinal beam and make a reciprocating motion.

[0036] Two limit sensors 8 are respectively arranged at both ends of the longitudinal beam and are located between the two driven wheels 72; the sliding plate 3 is located between the two limit sensors 8. When the sliding plate 3 moves close to the limit sensor 8, the limit sensor 8 sends an instruction to the driving motor, and the driving motor is powered off or reversed to limit the translation range of the sliding plate 3.

[0037] By driving the driving member 6 to drive the sliding plate 3 and the pushing rod 1 to move synchronously along the longitudinal beam, under the action of the pushing rod 1, the stirrup cages 11 on the stirrup magazine 9 move synchronously, separating the stirrup cages 11 from the stirrup magazine 9 one by one, realizing the automatic feeding of the stirrup cages 11 in the next welding station, facilitating the welding operation of the stirrup cages 11 and the longitudinal bars in the subsequent stations, and providing a basic guarantee for the subsequent automated production of the steel bar cage of the precast box girder.

[0038] The above is only the preferred implementation mode of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A stirrup feeding mechanism for the production of prefabricated box girder reinforcement skeleton, characterized in that: include: Frame, slide plate, transmission assembly, drive member and propulsion rod; A stirrup magazine for suspending a stirrup skeleton is arranged above the frame; the frame comprises two longitudinal beams arranged in parallel; The slide plates are relatively distributed on the two longitudinal beams of the frame, and the slide plates are slidably matched with the longitudinal beams; The two ends of the push rod are respectively connected to the slide plates on the two longitudinal beams; the push rod passes through the stirrup magazine and abuts against the end of the stirrup skeleton suspended on the stirrup magazine; The transmission assembly connects the driving member and the slide plate, and the driving member drives the slide plate and the propulsion rod to move synchronously along the longitudinal beam.

2. A stirrup feeding mechanism for the production of prefabricated box girder reinforcement skeleton according to claim 1, characterized in that: The transmission assembly includes a transmission rod and a sprocket assembly arranged at both ends of the transmission rod; the transmission rod is connected to the driving member; the sprocket assembly includes a driving wheel, a chain and two driven wheels; the driving wheel is connected to the transmission rod; the two driven wheels are distributed at both ends of the longitudinal beam, the chain bypasses the driving wheel and the two driven wheels, and the chain located between the two driven wheels is connected to the skateboard.

3. A stirrup feeding mechanism for producing a prefabricated box girder reinforcement skeleton according to claim 2, characterized in that: The sprocket assembly also includes a tensioning wheel; the tensioning wheel is arranged between the driving wheel and the driven wheel, and the tensioning wheel cooperates with the chain.

4. The stirrup feeding mechanism for the production of prefabricated box girder reinforcement skeleton according to claim 2, characterized in that: A feed connecting plate is arranged at the bottom of the slide plate; the feed connecting plate is connected to the chain.

5. The stirrup feeding mechanism for producing a prefabricated box girder reinforcement skeleton according to claim 1, characterized in that: The stirrup feeding mechanism also includes a guide rail assembly; the guide rail assembly is arranged on the longitudinal beam, and the slide plate cooperates with the guide rail assembly.

6. A stirrup feeding mechanism for producing a prefabricated box girder reinforcement skeleton according to claim 5, characterized in that: The guide rail assembly includes a guide rail bar and a track wheel; the guide rail bar is installed on one side of the longitudinal beam, and a longitudinal track groove is configured on the guide rail bar; a part of the track wheel is embedded in the track groove, and the track wheel is connected to the skateboard.

7. A stirrup feeding mechanism for producing a prefabricated box girder reinforcement skeleton according to claim 6, characterized in that: A group of guide rail assemblies are respectively arranged on opposite sides of the longitudinal beam.

8. The stirrup feeding mechanism for producing a prefabricated box girder reinforcement skeleton according to claim 2, characterized in that: The stirrup feeding mechanism also includes two limit sensors; the two limit sensors are respectively arranged at the two ends of the longitudinal beam and located between the two driven wheels; the slide plate is located between the two limit sensors.

9. The stirrup feeding mechanism for producing a prefabricated box girder reinforcement skeleton according to claim 1, characterized in that: The stirrup feeding mechanism also includes a moving wheel set; the moving wheel set is supported on the bottom of the stirrup magazine and movably cooperates with it.

10. A stirrup feeding mechanism for producing a prefabricated box girder reinforcement skeleton according to claim 9, characterized in that: The moving wheel group includes a support column and a roller rotatably arranged on the top of the support column; the roller is in rolling cooperation with the bottom of the stirrup magazine.

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