CN114951514A - Continuous stirrup manufacturing equipment and method - Google Patents

Abstract

The invention provides a method for manufacturing a continuous stirrup and equipment using the method. The method comprises the following steps: placing a planar structure formed by continuously bent steel bars on a fixed platform, fixing one side of the planar structure by a plurality of positioning members, and pushing the other side of the planar structure by a strip-shaped mould to form an intermediate structure; and turning the middle structure, enabling the bent part of the middle structure to abut against the positioning member, and pushing the side of the plane structure by the strip-shaped die to form a continuous stirrup.

Description

Continuous stirrup manufacturing equipment and method

Technical Field

The invention relates to an apparatus and a method for continuous hooping.

Background

In the anchoring area using the larger diameter steel bars, the overlapping length range and when the number of the parallel steel bars in a row is large, for example, in a beam structure, a certain number of stirrups should be arranged to prevent the concrete protective layer from splitting and collapsing. The stirrups are used for shearing strength, connecting the stressed main reinforcements and the concrete in the stressed area to work together, and fixing the positions of the main reinforcements to enable various reinforcements in the beam to form the reinforcements of the reinforcement cage. Meanwhile, the stirrup can limit the development of cracks in the concrete, improve the bonding strength and limit the width of the cracks reaching the surface of the member, so that the bonding strength is improved.

Conventional stirrups take a planar form, for example, in the manufacturing process of a reinforcement cage, the planar stirrups are fixed one by one onto the main reinforcement in a suitable manner (e.g., welding, binding). However, the above-mentioned reinforcement cage manufacturing process is very labor-consuming and time-consuming to fix a large number of stirrups on the main reinforcement. In addition, since the stirrups are arranged separately from each other, after the stirrups are fixed to the main reinforcement, the intervals between two adjacent stirrups may be different, which may also cause variation in the structural strength of the steel reinforcement cage. Therefore, how to efficiently manufacture a reinforced steel bar cage becomes an important issue in construction and construction engineering.

Disclosure of Invention

Accordingly, to solve the above problems, an embodiment of the present invention provides a method and an apparatus for manufacturing a continuous stirrup, which can quickly manufacture a plurality of stirrups connected in sequence, so as to reduce the labor and time required for fixing the stirrups to a main reinforcement, and maintain the spacing distance between adjacent stirrups, thereby preventing the variation in the structural strength of a steel reinforcement cage.

According to some embodiments of the present invention, continuous stirrup manufacturing apparatuses and methods are configured for working reinforcing bars having a planar structure. The planar structure is in a continuously curved shape and comprises a plurality of first parts which are arranged approximately in parallel along the transverse axis direction and a plurality of second parts which are connected with two adjacent first parts along the transverse axis direction, the planar structure is respectively provided with a first end and a second end which are opposite along the longitudinal axis direction, and the planar structure is defined into a first side area close to the first end, a second side area close to the second end and a middle area between the first side area and the second side area.

In one embodiment, the continuous stirrup bending method comprises providing a jig on a fixed platform, wherein the jig comprises a long jig body and a plurality of positioning members arranged along the direction of a transverse shaft, and the positioning members are arranged on the long jig body; arranging a plane structure on the fixed platform, enabling the first part of the plane structure to respectively abut against the positioning members, and enabling the first side edge area to protrude out of the front edge of the fixed platform; providing a strip-shaped mould along the direction of the transverse axis and enabling the strip-shaped mould to abut against at least one part of the first side edge area of the plane structure; actuating the strip-shaped die to push the first side edge area to enable the first side edge area to be bent upwards relative to the fixed platform so as to form an intermediate structure; turning to the middle structure, enabling the bent part of the middle structure to abut against the long jig body and the plurality of positioning members, and enabling the second side edge area to protrude out of the front edge of the fixed platform; and actuating the elongated die to push the second side edge region, so that the second side edge region is bent upwards relative to the fixed platform.

In another embodiment, a method of bending a continuous stirrup includes providing a fixed platform including a first groove and a second groove therein, the first groove and the second groove being substantially parallel to each other and extending along a transverse axis, the second groove being located between the first groove and a leading edge of the fixed platform; fixing a plurality of first positioning members in a first groove of a fixed platform and/or fixing a plurality of second positioning members in a second groove of the fixed platform; arranging a planar structure on the fixed platform, and enabling a plurality of first parts of the planar structure to abut against a plurality of first positioning members respectively; making the first side edge region protrude from the front edge of the fixed platform; providing a strip-shaped mould along the direction of the transverse shaft and enabling the strip-shaped mould to abut against at least one part of the first side edge area of the plane structure, and actuating the strip-shaped mould to push the first side edge area to enable the first side edge area to be bent upwards relative to the fixed platform so as to form an intermediate structure; turning to the middle structure, enabling the bent part of the middle structure to abut against the plurality of second positioning members, enabling the second side edge region to protrude out of the front edge of the fixed platform, and actuating the elongated die to push the second side edge region to bend upwards relative to the fixed platform.

In one embodiment, the continuous stirrup manufacturing equipment comprises a fixing platform, a jig, a strip-shaped mold and a plurality of bending devices. The jig comprises a long jig body and a plurality of positioning components. The long jig body extends along the direction parallel to the transverse axis and is arranged on the fixed platform in a manner of sliding along the longitudinal axis direction. The positioning members are arranged on the long jig body and are configured to abut against the first parts of the reinforcing steel bars. The elongated die is disposed adjacent the leading edge of the stationary platform and is movable relative to the stationary platform to bend upwardly against the first plurality of portions projecting from the leading edge of the stationary platform. The bending devices are arranged at fixed intervals along the direction of the transverse shaft, are adjacent to the long strip-shaped die and are approximately parallel to the long strip-shaped die.

In another embodiment, the continuous stirrup manufacturing equipment comprises a fixing platform, a plurality of first positioning members, a strip-shaped mold and a plurality of bending devices. The fixed platform is provided with a front edge and a first groove extending parallel to the front edge. A plurality of first locating members are aligned along the first channel and configured to abut and locate a plurality of first portions of the rebar. The elongated die is disposed adjacent the leading edge of the stationary platform and is movable relative to the stationary platform to bend upwardly against the first plurality of portions projecting from the leading edge of the stationary platform. The bending devices are arranged at fixed intervals along the direction of the transverse shaft, are adjacent to the strip-shaped die and are approximately parallel to the strip-shaped die.

Drawings

Fig. 1 shows a schematic view of a continuous stirrup manufacturing apparatus in an embodiment of the present invention.

Fig. 2 is a schematic view illustrating a bending positioning element according to an embodiment of the invention.

Fig. 3 is a schematic diagram of a continuous stirrup manufacturing apparatus having a jig according to an embodiment of the present invention.

FIG. 4 shows a schematic diagram of the steps of forming a continuous stirrup in one embodiment of the invention.

Fig. 5 is a schematic diagram of a steel bar bent into a planar structure according to an embodiment of the present invention.

FIG. 6 shows a first schematic view of forming a continuous stirrup in an embodiment of the invention.

FIG. 7 is a second schematic view of forming a continuous stirrup in an embodiment of the invention.

FIG. 8 shows a third schematic view of forming a continuous stirrup in an embodiment of the invention.

FIG. 9 illustrates a fourth embodiment of the present invention for forming a continuous stirrup.

FIG. 10 shows a fifth schematic view of forming a continuous stirrup in an embodiment of the invention.

FIG. 11 shows a sixth schematic view of forming a continuous stirrup in an embodiment of the invention.

Fig. 12 is a schematic view of a continuous stirrup manufacturing apparatus in an embodiment of the present invention.

Fig. 13 shows a schematic view of a continuous stirrup making apparatus with positioning members in another embodiment of the invention.

Fig. 14 shows a schematic view of a positioning member in another embodiment of the invention.

FIG. 15 shows a first schematic view of forming a continuous stirrup in another embodiment of the invention.

FIG. 16 shows a second schematic view of forming a continuous stirrup in another embodiment of the invention.

FIG. 17 shows a third schematic view of another embodiment of the present invention for forming a continuous stirrup.

FIG. 18 shows a fourth schematic view of another embodiment of the present invention for forming a continuous stirrup.

Detailed Description

For a better understanding of the features, content, and advantages of the present disclosure and the effects achieved thereby, reference will be made in detail to the following description of the embodiments, which is provided in conjunction with the accompanying drawings, wherein the same is by way of illustration and description only, and the same is not to be construed as limiting the claims to the scale and arrangement of the drawings.

The terms "a" or "an" are used herein to describe elements and components of the present disclosure. This terminology is used for convenience of description only and gives the inventor a basic idea. This description should be read to include one or at least one and the singular also includes the plural unless it is obvious that it is meant otherwise. The terms "a" and "an" when used in conjunction with the word "comprising" in the claims may mean one or more than one. Further, the term "or" as used herein is intended to mean "and/or".

Unless otherwise specified, spatial descriptions such as "above," "below," "up," "left," "right," "down," "body," "base," "vertical," "horizontal," "side," "upper," "lower," "upper," "above," "below," and the like are directed to the directions shown in the figures. It is to be understood that the spatial descriptions used herein are for purposes of illustration only and that actual implementations of the structures described herein may be spatially configured in any relative orientation, such limitations not altering the advantages of the embodiments of the present invention. For example, in the description of some embodiments, an element provided "on" another element may encompass the case where the preceding element is directly on the succeeding element (e.g., in physical contact with the succeeding element), as well as the case where one or more intervening elements are located between the preceding and succeeding elements.

As used herein, the terms "substantially", "substantial" and "about" are used to describe and account for minor variations. When used in conjunction with an event or circumstance, the terms can mean that the event or circumstance occurs specifically, and that the event or circumstance closely approximates that which occurs.

Fig. 1 shows a schematic view of a continuous stirrup manufacturing apparatus 1 in an embodiment of the present invention. According to an embodiment of the present invention, the continuous stirrup manufacturing apparatus 1 includes a base 10, two first support plates 12 (only one first support plate 12 is shown in fig. 1, and the other first support plate 12 is not shown), two rear brackets 13, two upper brackets 14, two front brackets 15, two second support plates 16 (only one second support plate 16 is shown in fig. 1, and the other second support plate 16 is not shown), a placing table 17, a fixing platform 20, a plurality of bending devices 30, an elongated mold 35, and a dimension positioning member 40.

The two first support plates 12 are disposed on opposite sides of the base 10 in a horizontal axis direction (X axis direction), and extend to a predetermined height in a direction away from the base 10 to support two upper brackets 14 thereon, respectively. The two second support plates 16 are disposed at a distance from the two first support plates 12 in the longitudinal axis direction (Y-axis direction). The two second support plates 16 are disposed on opposite sides of the base 10 along a transverse axis (X axis), and extend a predetermined height in a direction away from the base 10 to support the placing table 17 located above the two second support plates. In other embodiments, the support plates 12, 16 located on the same side of the base 10 are integrally formed to support the upper frame 14 and the placement table 17, or more than three support plates are provided on opposite sides of the base 10.

The two rear brackets 13 are coupled to the base 10 and the two upper brackets 14 at both ends thereof in an inclined manner to enhance structural stability of the two upper brackets 14. As a whole, the two upper brackets 14 are stably supported via the two first support plates 12 and the two rear brackets 13, wherein one ends of the two upper brackets 14 are respectively disposed adjacent to the placement stages 17 and extend in a direction away from the placement stages 17 along the longitudinal axis direction (Y-axis direction).

The fixed platform 20 is configured for supporting the rebar forming the continuous stirrup during the fabrication thereof. In some embodiments, the fixed platform 20 comprises a rectangular, flat plate structure having a rear edge 21, a front edge 22, and two side edges 23, 24. The trailing edge 21 is opposite the leading edge 22. Two side edges 23, 24 are respectively connected between the rear edge 21 and the front edge 22 and are opposite to each other. In some embodiments, the fixed platform 20 is disposed above the upper rack 14, wherein a front edge 22 of the fixed platform 20 is disposed adjacent to the placement table 17 and two side edges 23, 24 are disposed adjacent to two upper racks 14, respectively. In some embodiments, the distance between the two side edges 23, 24 of the fixed platform 20 is greater than the distance between the two upper brackets 14. Therefore, after the fixed platform 20 is disposed over the two upper brackets 14, the two side edges 23, 24 of the fixed platform 20 protrude outward from the upper two upper brackets 14 in the transverse axis direction (X-axis direction) (i.e., the side edges 23, 24 are spaced apart from the upper brackets 14 by a distance).

In some embodiments, as shown in fig. 1, a plurality of bending devices 30 are arranged above the placing table 17 at a fixed pitch in the transverse axis direction (X-axis direction). A plurality of bending devices 30 are disposed immediately between the leading edge 22 of the stationary platen 20 and the elongated die 35. A plurality of positioning grooves corresponding to the shape of the bending device 30 may be formed in advance on the placing table 17, so that the bending device 30 may be precisely disposed at a predetermined position on the placing table 17.

Fig. 2 shows a schematic view of a bending device 30 according to an embodiment of the present invention. In some embodiments, bending device 30 includes a rectangular base 31, a coupling portion 32, and a bending positioning member 33. In some embodiments, as shown in fig. 2, the connecting portion 32 is disposed at a corner of the rectangular base 31, and the bending positioning member 33 extends from the top end of the connecting portion 32 along a direction parallel to the base 31 (and the parallel elongated mold 35, fig. 1). The bending fixture 33 may have a circular arc-shaped outer surface. It should be understood, however, that the embodiments of the present invention are not limited thereto. In other embodiments, the outer surface of the bending location 33 may have any shape, such as triangular, quadrangular, or any polygonal shape.

Referring to fig. 1, the strip mold 35 is configured to bend a reinforcing bar having a plurality of bending portions. In some embodiments, the elongated die 35 is disposed on a side of the bending apparatus 30 away from the fixed platform 20. The strip mold 35 extends in the lateral axis direction (X axis direction) and has substantially the same width as the fixed platen 20 in the lateral axis direction (X axis direction). The elongated mold 35 is driven by an actuator (e.g., a hydraulic rod, not shown) to rotate about a pivot 37 parallel to the transverse axis (X-axis). The top surface 36 of the elongated die 35 may be a flat surface. The top surface 36 may be level with the top surface 25 of the stationary platen 20 before the elongated die 35 is not driven.

The sizing element 40 is configured to control the length of rebar protruding from the leading edge 22 of the fixed platform 20. In some embodiments, the sizer 40 faces the front edge 22 of the mounting plate 20, and the sizer 40 and the fixture 50 are respectively disposed on opposite sides of the strip mold 35. In some embodiments, the sizer 40 is slidably disposed over the front frame 15 relative to the elongated die 35. In some embodiments, the size positioning member 40 is an L-shaped plate-shaped structure extending along the transverse axis direction (X-axis direction), and includes a supporting portion 41 and a limiting portion 42 disposed perpendicular to each other. The support portion 41 may be flush with the top surface 25 of the stationary platen 20, and the retainer portion 42 is located on a side of the support portion 41 remote from the elongate mold 35.

Fig. 3 shows a schematic view of a continuous stirrup manufacturing apparatus 1 with a jig 50 according to an embodiment of the present invention. The jig 50 includes a long jig body 51, a plurality of positioning members, such as a plurality of first positioning members 52 and a plurality of second positioning members 53, two slot structures 54, and a plurality of grips 55. In some embodiments, the elongated jig body 51 extends along a horizontal axis (X-axis), is parallel to the front edge 22 of the fixed platform 20, and is slidably disposed on the fixed platform 20 along a vertical axis (Y-axis). The two slot structures 54 are respectively connected to two ends of the long fixture body 51, and slidably connected to two lateral edges 23, 24 of the fixing platform 20. In some embodiments, the handle 55 is disposed on the upper surface 512 of the elongated fixture body 51 for an operator to hold and slide the fixture 50 relative to the fixed platform 20.

The first and second positioning members 52 and 53 are configured to fix the position of the reinforcing bars in the process of manufacturing the continuous stirrup. In some embodiments, the first positioning member 52 and the second positioning member 53 are disposed on the lower surface 51 of the elongated jig body 51, and the elongated jig body 51 is disposed above the top surface 25 of the fixed platform 20 through the first positioning member 52 and the second positioning member 53. That is, the lower surface 51 of the long fixture body 51 is separated from the fixed platform 20 by a distance. In some embodiments, each of the first positioning member 52 and the second positioning member 53 corresponds to the bending device 30. In this way, after the reinforcing bars are disposed on the fixing platform 20, the portion of the reinforcing bars extending in the longitudinal direction (Y-axis direction) is simultaneously contacted by the bending device 30 and one of the first positioning member 52 and the second positioning member 53.

In some embodiments, as shown in fig. 3, the first positioning member 52 and the second positioning member 53 each have a length in the longitudinal direction (Y-axis direction) and a curved end portion skewed with respect to the longitudinal direction (Y-axis direction) at an end of the leading edge 22 adjacent to the fixed platform 20, wherein the curved direction of the first positioning member 52 is opposite to that of the second positioning member 53. Specifically, the first positioning member 52 is bent in the direction of the side edge 54, and the second positioning member 53 is bent in the direction of the side edge 53. In some embodiments, the first positioning members 52 and the second positioning members 53 are alternately disposed on the lower surface 51 of the elongated jig body 51, and two adjacent first positioning members 52 and second positioning members 53 together form a bell mouth structure. However, it is understood that the present invention is not limited thereto, and the arrangement order of the first positioning member 52 and the second positioning member 53 can be adjusted according to the requirement. For example, as shown in fig. 3, at one end adjacent to the side edge 23, two positioning members 53 are continuously arranged on the elongated jig body 51 to apply an abutting force to the steel bar closest to the side edge 23 of the fixed platform 20 toward the side edge 23 during the operation.

Referring to fig. 3-11, a method of manufacturing a continuous stirrup using the continuous stirrup manufacturing apparatus 1 according to some embodiments of the present invention is described as follows:

as shown in fig. 3, the method of manufacturing the continuous stirrup includes providing a jig 50 on the fixing platform 20. In some embodiments, after the jig 50 is disposed on the fixing platform 20, the slot structure 54 of the jig 50 is slidably coupled to the two side edges 23, 24 of the fixing platform 20, and the first positioning member 52 and the second positioning member 53 of the jig 50 are respectively aligned with one of the bending devices 30 in the longitudinal axis direction (Y-axis direction).

In some embodiments, as shown in fig. 4, prior to the method of manufacturing a continuous stirrup using a continuous stirrup manufacturing apparatus, the long straight reinforcing bars 60 are first processed through a bending apparatus 80 to form a planar structure with continuously bent portions. In some embodiments, the bending apparatus 80 includes a bending device 81, a fixed block 82, and a movable block 83. The fixed block 82 and the movable block 83 are arranged in a straight line, wherein the movable block 83 is rotatable in the direction of the arrow shown in fig. 4 from a start position (dashed line frame) to a drive position (solid line frame). The bending means 81 is disposed facing the end of the fixed block 82 adjacent to the movable block 83 and has an arc-shaped surface. The method of bending the reinforcing bar includes feeding the reinforcing bar into the bending apparatus 80, causing the reinforcing bar 60 to abut against the fixed block 82 and the movable block 83 located at the initial position at the same time, then driving the movable block 83 to rotate in the direction of the arrow shown in fig. 4, and bending the reinforcing bar 60 using the bending device 81. Thereafter, the above steps are repeatedly performed a plurality of times to form the planar structure 600 as shown in fig. 5.

In some embodiments, the planar structure 600 includes a plurality of first portions 61, a plurality of second portions 62, and two end bend structures 63. The first portions 61 are arranged substantially in parallel along a transverse axis direction (X-axis direction), and each have a first end 611 and a second end 612 opposite to each other. Each of the plurality of second portions 62 links adjacent two of the first portions 61 in the transverse axis direction (X-axis direction). Two end bending structures 63 are respectively bent from the first portions 61 located at the outermost sides. For convenience of description, in the following description, an area adjacent to the first end 611 of the first portion 61 on the planar structure 600 is referred to as a first side area 66, an area adjacent to the second end 612 of the first portion 61 on the planar structure 600 is referred to as a second side area 67, and an area between the first side area 66 and the second side area 67 is referred to as a middle area 65. The length of the first side region 66 and the second side region 67 in the longitudinal direction (Y-axis direction) may be the same, and the size may be determined by the design of the continuous stirrup.

As shown in fig. 6, the method of manufacturing a continuous stirrup further includes disposing the planar structure 600 on the fixed platform 20 such that the first side region 66 protrudes from the front edge 22 of the fixed platform 20 and the second portion 62 of the first side region 66 abuts against the position-limiting portion 42 of the size-keeping member 40. With the sizing locators 40, each first portion 61 at the intersection of the first side regions 66 and the middle region 65 will be positioned below the corresponding bent locator 33. In some embodiments, the distance between the sizer 40 and the elongated die 35 may be adjusted based on the size of the planar structure 600.

As shown in fig. 7, the method of manufacturing a continuous stirrup further includes moving the jig 50 so that the plurality of positioning members 52, 53 of the jig 50 abut against the first portion 61 of the planar structure 600, respectively. In some embodiments, the jig 50 is slid along the longitudinal axis direction (Y-axis direction) from the start position (fig. 6) to the operating position (fig. 7). When the jig 50 moves, the second portions 62 of the second side regions 67 are guided by the bell-mouth structure formed by the adjacent first positioning members 52 and the adjacent second positioning members 53 to pass through the jig 50. After the second portion 62 of the second side region 67 passes through the jig 50, the adjacent first positioning members 52 and second positioning members 53 each abut against two first portions 61 joined by the corresponding second portion 62. In some embodiments, since the first positioning member 52 and the second positioning member 53 each have a curved end portion, both ends thereof extend in an arc-shaped curve in a direction away from the plurality of first portions 61 against which they abut.

In addition, as shown in fig. 7, the method of manufacturing a continuous stirrup further comprises providing the elongated mold 35 along the transverse axis (X-axis) and abutting the top surface 36 thereof against at least a portion of the first side edge area 66 of the planar structure 600. In some embodiments, the first side region 66 is supported by the base 31 (fig. 2) of the bending apparatus 30, the top surface 36 of the strip mold 35, and the support portion 41 of the sizer 40 before the first side region 66 is bent.

As shown in fig. 8, the method of manufacturing a continuous stirrup further comprises actuating the elongated die 35 to apply a pushing force to the first side regions 66, so that the first side regions 66 bend upward relative to the fixed platform 20, and the planar structure 600 is deformed into the intermediate structure 600'. In some embodiments, since the position of the first portion 61 of the planar structure 600 in the transverse axis direction (X-axis direction) is limited by the first positioning member 52 and the second positioning member 53, the first side region 66 does not shake during being pushed by the elongated mold 35. Therefore, the bent first portions 61 are still arranged substantially in parallel in the longitudinal direction (Y-axis direction). After bending the first side regions 66 with respect to the intermediate region 65, the jig 50 is separated from the intermediate structure 600', and the intermediate structure 600' is temporarily detached from the continuous stirrup-making apparatus 1.

As shown in fig. 9, the method of manufacturing a continuous stirrup further comprises turning the intermediate structure 600' and placing it on the fixed platform 20 so that the second side edge region 67 partially protrudes from the front edge 22 of the fixed platform 20 and is located below the bending locator 33.

As shown in fig. 9, the method of manufacturing the continuous stirrup further includes abutting the elongated jig body 50 and the first positioning member 52 and the second positioning member 53 thereof against the bent portion 68 of the intermediate structure 600'. In some embodiments, the jig 50 is slid along the longitudinal axis direction (Y-axis direction) from the start position (fig. 9) to the operating position (fig. 10). When the jig 50 moves as described above, the bent portion 68 of the intermediate structure 600' is guided by the bell-mouth structure formed by the adjacent first positioning member 52 and the second positioning member 53 to enter between the adjacent first positioning member 52 and the second positioning member 53. Thereafter, the adjacent first positioning member 52 and the second positioning member 53 each abut against the first portion 61 corresponding to the bent portion 68. As pushed by the jig 50, the intermediate structure 600' continues to move along the longitudinal axis (Y-axis) until the second portion 62 of the second side section 67 abuts against the position-limiting portion 42 of the size positioning member 40, as shown in fig. 10. At this time, the intersection of the second side region 67 and the middle region 65 in each first portion 61 is located below the bending positioning member 33. The second side region 67 is supported by the base 31 (fig. 2) of the bending apparatus 30, the top surface 36 of the strip mold 35, and the support portion 41 of the size keeper 40.

As shown in fig. 11, the method of making a continuous stirrup further comprises actuating the elongated die 35 to push the second side region 67, causing the second side region 67 to bend upward relative to the fixed platform 20 to form a continuous stirrup 600 ". In some embodiments, since the position of the first portion 61 of the intermediate structure 600 'in the transverse axis direction (X-axis direction) is limited by the first positioning member 52 and the second positioning member 53, the first portion 61 of the intermediate structure 600' does not shake or shift during the pushing of the second side region 67 by the strip mold 35. Therefore, the bent first portions 61 of the intermediate structure 600' are still substantially parallel aligned along the transverse axis direction (X-axis direction). In some embodiments, the method of manufacturing continuous stirrup 600 "further comprises, after bending second side edge region 67, separating jig 50 from the continuous stirrup and removing continuous stirrup 600" from continuous stirrup manufacturing apparatus 1.

Fig. 12 shows a schematic view of a continuous stirrup manufacturing apparatus 1a in an embodiment of the present invention. In this embodiment, the same elements as those of the continuous stirrup manufacturing apparatus 1 of fig. 1 to 11 will be assigned the same reference numerals, and the features of the elements will not be repeated. According to an embodiment of the present invention, the difference between the continuous stirrup manufacturing apparatus 1a and the continuous stirrup manufacturing apparatus 1 includes: the fixing platform 20 of the continuous stirrup manufacturing apparatus 1 is replaced by a fixing platform 20a, and the jig 50 of the continuous stirrup manufacturing apparatus 1 is replaced by a plurality of positioning members, such as a first positioning member 72 and a second positioning member 73 (fig. 13).

In some embodiments, the fixed platform 20a is configured to support the planar structure 600 during the fabrication of the continuous stirrup. In some embodiments, the fixed platform 20a has a similar structure to the fixed platform 20 shown in fig. 1, except that the fixed platform 20a further includes a first groove 70 and a second groove 71 extending through the fixed platform 20 a. The first groove 70 and the second groove 71 each extend along the transverse axis direction (X-axis direction) and are parallel to the leading edge 22 of the fixed platform 20a, and the second groove 71 is located between the first groove 70 and the leading edge 22 of the fixed platform 20 a.

Fig. 13 shows a schematic view of the continuous stirrup manufacturing apparatus 1a according to the embodiment of the invention after the positioning members 72 and 73 are arranged. In some embodiments, a plurality of first locating members 72 are disposed within the first grooves 70 relative to the bending devices 30 corresponding in the longitudinal direction (Y-axis direction). The plurality of second positioning members 73 are provided in the second grooves 71 with respect to the bending devices 30 corresponding to the longitudinal direction (Y-axis direction). Referring to fig. 15, after the first positioning member 72 and the second positioning member 73 disposed opposite to the same bending device 30 are disposed such that the planar structure 600 is placed on the fixing platform 20a, the first positioning member 72 and the second positioning member 73 respectively abut against two opposite sides of the first portion 61 of the planar structure 600. However, it is understood that the embodiments of the present invention are not limited thereto, and in some embodiments, the first groove 70 and the first positioning member 72 are omitted, and the first portion 61 of the planar structure 600 is positioned only through the second positioning member 73.

Referring to fig. 14, in some embodiments, the first positioning member 72 includes a substrate 721, a positioning pillar 722, an extending portion 723, and a fixing member 724. The substrate 721 spans the first trench 70 and is disposed on the top surface 25 via fasteners 724 (e.g., screws or bolts). The positioning pillars 722 are disposed over the substrate 721 and have a cylindrical structure. The extension 723 is disposed under the substrate 721 and extends into the first trench 70, so that the first positioning member 72 is positioned in the first trench 70. In some embodiments, the structural features of the second positioning groove 73 are the same as or similar to the structural features of the first positioning groove 72, and are not repeated.

Referring to fig. 13 and 15-18, a method of manufacturing a continuous stirrup using the continuous stirrup manufacturing apparatus 1a according to some embodiments of the invention is illustrated as follows:

as shown in fig. 13, the method of manufacturing the continuous stirrup includes providing a first plurality of positioning members 72 fixed in the first grooves 70 of the fixed platform 20 and fixing a second plurality of positioning members 72 in the second grooves 71 of the fixed platform 20. In some embodiments, the step of securing the second positioning member 72 is omitted.

As shown in fig. 15, the method of manufacturing a continuous stirrup further includes disposing the planar structure 600 on the fixed platform 20a such that the first side region 66 protrudes from the front edge 22 of the fixed platform 20a and the second portion 62 of the first side region 66 abuts against the position-limiting portion 42 of the size positioning member 40. With the sizing locators 40, each first portion 61 at the intersection of the first side regions 66 and the middle region 65 will be positioned below the corresponding bent locator 33. In addition, when the planar structure 600 is disposed on the fixed platform 20a, two opposite sides of each first portion 61 of the planar structure 600 respectively abut against the corresponding first positioning member 72 and the second positioning member 73.

In addition, as shown in fig. 15, the method of manufacturing the continuous stirrup further comprises providing the elongated mold 35 along the transverse axis (X-axis) and abutting the top surface 36 thereof against at least a portion of the first side edge area 66 of the planar structure. In some embodiments, the first side region 66 is supported by the base 31 (fig. 2) of the bending apparatus 30, the top surface 36 of the elongated mold 35, and the support portion 41 of the sizer 40 before the first side region 66 is bent.

As shown in fig. 16, the method of making a continuous stirrup further comprises actuating the elongated die 35 to push the first side regions 66, causing the first side regions 66 to bend upward relative to the fixed platform 20a to deform from the planar structure 600 to the intermediate structure 600'. In some embodiments, since the position of the first portion 61 of the planar structure 600 in the transverse axis direction (X-axis direction) is limited by the first positioning member 72 and the second positioning member 73, the first portion 61 of the planar structure 600 does not shake or shift during the pushing process of the first side region 66 by the elongated mold 35. Therefore, the plurality of first portions 61 after bending are still arranged substantially in parallel in the transverse axis direction (X axis direction). After bending the first side regions 66 with respect to the middle region 65, the intermediate structure 600' is temporarily removed from the continuous stirrup-making apparatus 1 a.

As shown in fig. 17, the method of making a continuous stirrup further comprises turning the intermediate structure 600' and placing it on the fixed platform 20a so that the second side region 67 protrudes from the front edge 22 of said fixed platform 20 a. In some embodiments, as shown in fig. 17, the intermediate structure 600' turned around and placed on the fixed platform 20a has the second side edge region 67 commonly supported by the base 31 (fig. 2) of the bending apparatus 30, the top surface 36 of the elongated mold 35 and the support portion 41 of the sizer 40. In some embodiments, as shown in fig. 17, after placing the intermediate structure 600 'on the fixed platform 20a, the bent portions 68 of the intermediate structure 600' abut against the plurality of second positioning members 73 and are separated from the first positioning members 72.

As shown in fig. 18, the method of making a continuous stirrup further comprises actuating the elongated die 35 to push the second side region 67 of the intermediate structure 600', such that the second side region 67 is bent upward relative to the fixed platform 20a to form the continuous stirrup 600 ″. In some embodiments, since the position of the first portion 61 of the intermediate structure 600' in the transverse axis direction (X-axis direction) is limited by the second positioning member 73, the first portion 61 of the intermediate structure 600' does not shake or shift during the pushing of the second side edge region 67 of the intermediate structure 600' by the elongated die 35. Therefore, the plurality of first portions 61 after bending are still arranged substantially in parallel in the longitudinal axis direction (Y-axis direction). In some embodiments, the method of making the continuous stirrup 600 "further comprises, after bending the second side region 67, removing the continuous stirrup 600" from the continuous stirrup making apparatus 1 a.

The above-described embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and to implement the same, so that the scope of the present invention should not be limited thereto, and all equivalent changes and modifications made in the spirit of the present invention should be covered by the scope of the present invention.

DESCRIPTION OF SYMBOLS IN THE DRAWINGS

1: continuous stirrup manufacturing equipment

1 a: continuous stirrup manufacturing equipment

10: base seat

12: first supporting plate

13: rear support

14: upper support

15: front support

16: second support plate

17: placing table

20: fixed platform

20 a: fixed platform

21: trailing edge

22: leading edge

23: skirt edge

24: skirt edge

25: the top surface

30: bending device

31: base seat

32: connecting part

33: bending positioning piece

35: strip-shaped mould

36: the top surface

37: pivot shaft

40: size positioning piece

41: supporting part

42: position limiting part

50: jig tool

51: long jig body

511: lower surface

512: upper surface of

514: end part

52: positioning component (first positioning component)

53: positioning component (second positioning component)

54: clamping groove structure

55: handle of hand grip

60: reinforcing bar

600: planar structure

600': intermediate structure

600": continuous stirrup

61: the first part

611: first end

612: second end

62: the second part

63: terminal bending structure

65: middle area

66: first side edge region

67: second side region

68: at the bending part

70: groove (first groove)

71: groove (second groove)

72: positioning component (first positioning component)

721: substrate

722: positioning column

723: extension part

724: fixing piece

73: positioning component (second positioning component)

80: bending device

81: bending device

82: fixed block

83: movable block

X: direction of transverse axis

Y: the longitudinal axis direction.

Claims (20)

1. A method of making a continuous stirrup comprising:

bending a steel bar to form a planar structure, wherein the planar structure has a plurality of first portions arranged substantially in parallel along a transverse axis direction, and a plurality of second portions connecting two adjacent first portions along the transverse axis direction, the planar structure has a first end and a second end opposite to each other along a longitudinal axis direction, and the planar structure is defined as a first side area near the first end, a second side area near the second end, and a middle area between the first side area and the second side area;

providing a jig on the fixing platform, wherein the jig comprises a long jig body and a plurality of positioning components arranged along the direction of the transverse shaft, and the positioning components are arranged on the long jig body;

arranging the planar structure on the fixed platform, enabling the first parts of the planar structure to respectively abut against the positioning members, and enabling the first side edge area to protrude out of the front edge of the fixed platform;

providing an elongated die along the transverse axis and against at least a portion of the first side region of the planar structure;

actuating the elongated die to push the first side area to bend the first side area upwards relative to the fixed platform to form an intermediate structure;

turning to the intermediate structure, enabling the bent part of the intermediate structure to abut against the long jig body and the plurality of positioning members, and enabling the second side edge region to protrude out of the front edge of the fixed platform; and

and actuating the elongated die to push the second side edge area, so that the second side edge area is bent upwards relative to the fixed platform.

2. The method of manufacturing a continuous stirrup according to claim 1, further comprising the steps of:

and providing a plurality of bending positioning pieces which are arranged at fixed intervals along the direction of the transverse shaft, wherein each bending positioning piece is provided with an arc-shaped surface which is adjacent to the strip-shaped mould and is approximately parallel to the strip-shaped mould.

3. The method of claim 2, wherein the step of providing the jig on the fixing platform comprises: moving the jig from a trailing edge side of the fixed platform toward the leading edge of the fixed platform such that the jig is located above the second side edge region of the planar structure.

4. The method of claim 3, wherein disposing the planar structure on the fixed platform comprises: and arranging the first parts of the planar structure, which are positioned in the first side area, below the bending positioning pieces.

5. The method of manufacturing a continuous stirrup according to any one of claims 1 to 4, further comprising the steps of: and providing a size positioning piece at one side of the strip-shaped mold, wherein the size positioning piece and the jig are respectively positioned at the opposite sides of the strip-shaped mold.

6. The method of manufacturing a continuous stirrup according to claim 5, further comprising the steps of: adjusting the distance between the size positioning piece and the elongated mold, and enabling the first ends of the planar structure to abut against the size positioning piece.

7. A method of making a continuous stirrup comprising:

bending a reinforcing bar to form a planar structure, wherein the planar structure exhibits a continuously curved shape and includes a plurality of first portions arranged substantially in parallel along a transverse axis direction, and a plurality of second portions connecting adjacent two of the plurality of first portions along the transverse axis direction, the planar structure has a first end and a second end opposite to each other in a longitudinal axis direction, and the planar structure is defined as a first side area near the first end, a second side area near the second end, and a middle area between the first side area and the second side area;

providing a stationary platform including a first groove and a second groove therein, the first groove and the second groove being substantially parallel to each other and extending along the transverse axis direction, the second groove being located between the first groove and a leading edge of the stationary platform;

securing a plurality of first locating members in the first groove of the securing platform;

arranging the planar structure on the fixed platform, enabling the first parts of the planar structure to respectively abut against the first positioning members, and enabling the first side edge area to protrude out of the front edge of the fixed platform;

providing an elongated die along the transverse axis and against at least a portion of the first side region of the planar structure;

actuating the elongated die to push the first side area to bend the first side area upwards relative to the fixed platform to form an intermediate structure;

securing a plurality of second positioning members in a second groove of the securing platform;

turning the middle structure, enabling the bent part of the middle structure to abut against the plurality of second positioning members, and enabling the second side edge region to protrude out of the front edge of the fixed platform; and

and actuating the elongated die to push the second side edge area, so that the second side edge area is bent upwards relative to the fixed platform.

8. The method of manufacturing a continuous stirrup according to claim 7, further comprising the steps of:

and providing a plurality of bending positioning pieces which are arranged at fixed intervals along the direction of the transverse shaft, wherein each bending positioning piece is provided with an arc-shaped surface which is adjacent to the strip-shaped mould and is approximately parallel to the strip-shaped mould.

9. The method of claim 8, wherein disposing the planar structure on the fixed platform comprises: and arranging the first parts of the planar structure, which are positioned in the first side area, below the bending positioning pieces.

10. The method of manufacturing a continuous stirrup according to claim 8 or 9, further comprising the steps of: providing a size positioning element on one side of the strip-shaped mold, wherein the size positioning element and the first positioning members are respectively positioned on the opposite sides of the strip-shaped mold.

11. The method of manufacturing a continuous stirrup according to claim 10, further comprising the steps of: adjusting the distance between the size positioning piece and the elongated mould, and enabling the first ends of the planar structure to abut against the size positioning piece.

12. The method of claim 7, wherein disposing the planar structure on the fixed platform comprises: simultaneously abutting each of the plurality of first portions against one of the plurality of first locating members and a corresponding one of the plurality of second locating members.

13. A continuous stirrup manufacturing apparatus for bending a reinforcing bar assuming a continuously curved shape, the reinforcing bar extending in a plane and including a plurality of first portions arranged substantially parallel in a transverse axis direction, and a plurality of second portions joining adjacent two of the plurality of first portions in the transverse axis direction, the continuous stirrup manufacturing apparatus comprising:

a stationary platform having a leading edge;

the tool, it includes:

the long jig body extends along the direction parallel to the transverse axis and is arranged on the fixed platform in a sliding manner along the longitudinal axis direction; and

a plurality of positioning members disposed on the elongated jig body and configured to abut the plurality of first portions of the reinforcement bars;

an elongated die disposed adjacent to the leading edge of the fixed platform and movable relative to the fixed platform to bend upwardly against the first portions projecting from the leading edge of the fixed platform; and

and the bending devices are arranged at fixed intervals along the direction of the transverse shaft, are adjacent to the strip-shaped die and are approximately parallel to the strip-shaped die.

14. The continuous stirrup manufacturing apparatus according to claim 13, wherein the lower surface of the elongated jig body is spaced apart from the fixing platform by a distance, and the plurality of positioning members are disposed on the lower surface of the elongated jig body.

15. The continuous stirrup making apparatus according to claim 14, wherein each of the plurality of positioning members has an arc shape with both ends thereof extending outwardly away from one of the plurality of first portions against which it abuts.

16. The continuous stirrup making apparatus according to claim 14 or 15, further comprising a size positioning member disposed facing the front edge of the fixed platform and located at opposite sides of the elongated mold from the jig, respectively, wherein the size positioning member is movable relative to the elongated mold and configured to abut against the plurality of second portions to control the length of the plurality of first portions protruding from the front edge of the fixed platform.

17. A continuous stirrup manufacturing apparatus for bending a reinforcing bar assuming a continuously curved shape, the reinforcing bar extending in a plane and including a plurality of first portions arranged substantially parallel in a transverse axis direction, and a plurality of second portions joining adjacent two of the plurality of first portions in the transverse axis direction, the continuous stirrup manufacturing apparatus comprising:

a stationary platform having a leading edge and a first channel extending parallel to the leading edge;

a plurality of first locating members aligned along the first channel and configured to abut and locate the plurality of first portions of the rebar;

an elongated die disposed adjacent the leading edge of the fixed platform and movable relative to the fixed platform to bend upwardly against the first portions projecting from the leading edge of the fixed platform; and

and the bending devices are arranged at fixed intervals along the direction of the transverse shaft, are adjacent to the long strip-shaped die and are approximately parallel to the long strip-shaped die.

18. The continuous stirrup manufacturing apparatus according to claim 17, wherein each of the plurality of bending devices comprises a rectangular base, a bending positioning member and a connecting portion for connecting and fixing the bending positioning member to the rectangular base, wherein the bending positioning member has an outer surface in a circular arc shape.

19. The continuous stirrup forming apparatus according to claim 17, wherein the stationary platform further has a second groove parallel to the leading edge, the second groove being closer to the leading edge of the stationary platform than the first groove, the continuous stirrup forming apparatus further comprising: a plurality of second positioning members arranged along the second groove, wherein each of the plurality of second positioning members is configured to abut against opposite sides of one of the plurality of first portions with one of the plurality of first positioning members, respectively.

20. The continuous stirrup making apparatus according to claim 18 or 19, further comprising a sizing member disposed facing the leading edge of the fixed platform and located on opposite sides of the elongated mold from the first positioning member, respectively, wherein the sizing member is movable relative to the elongated mold and configured to abut against the plurality of second portions to control the length of the plurality of first portions protruding from the leading edge of the fixed platform.

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