Butterfly rib plane extrusion stirrup forming mechanism

Abstract

The utility model belongs to the technical field of butterfly rib forming, and discloses a butterfly rib plane extrusion stirrup forming mechanism which comprises a fixed base, and dies, a clamping driving assembly, an ejection assembly and an automatic welding mechanism which are arranged on the fixed base, the two dies are arranged at an interval in the first direction, and a rectangular stirrup to be formed is arranged on the two dies in a sleeving manner; the two clamping driving assemblies are oppositely arranged on the two sides of the two molds in the second direction, and the output ends of the two clamping driving assemblies can get close to each other in the second direction and extrude a rectangular stirrup to be formed to form a butterfly rib; the output end of the ejection assembly right faces the middle position of the two molds in the third direction, the automatic welding mechanism is used for conducting welding forming on the formed butterfly ribs, and the output end of the ejection assembly can eject the welded butterfly ribs out of the molds in the third direction. The butterfly rib forming machine is high in automation degree, high in butterfly rib forming efficiency and good in consistency.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly rib forming, in particular to a forming mechanism for plane extrusion stirrups of butterfly ribs. Background Technique

[0002] Butterfly ribs, also known as figure-eight ribs, are common components in steel bar meshes. They are formed by welding or tying steel bars and play a role in strengthening and enhancing the overall strength of the mesh. Traditional production of butterfly ribs uses the mode of plane stirrups. The bar bending machine is used to form the coil bar, and then the butt welder is used to weld the interface position. The disadvantages of this processing method are low automation, high manual labor intensity, low forming efficiency, and poor consistency of parts in the same batch. Content of the Utility Model

[0003] The purpose of the utility model is to provide a forming mechanism for plane extrusion stirrups of butterfly ribs for the forming of butterfly ribs, so as to solve the problems of low forming efficiency and poor consistency of butterfly ribs.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a forming mechanism for plane extrusion stirrups of butterfly ribs, including:

[0006] A fixed base;

[0007] Molds. There are two molds, and the two molds are arranged at intervals on the fixed base along the first direction. The rectangular stirrup to be formed is sleeved on the two molds;

[0008] Clamping driving components. There are two clamping driving components, and the two clamping driving components are arranged on the fixed base and relatively arranged on both sides of the two molds along the second direction. The output ends of the two clamping driving components can approach each other along the second direction and squeeze the rectangular stirrup to be formed to form a butterfly rib;

[0009] An automatic welding mechanism for welding and forming the formed butterfly rib;

[0010] An ejecting component is arranged on the fixed base, and the output end of the ejecting component is arranged opposite to the middle position of the two molds along the third direction. The output end of the ejecting component can eject the welded and formed butterfly rib out of the mold along the third direction.

[0011] In some embodiments, the clamping driving component includes:

[0012] A machine base, which is fixedly arranged on the fixed base, and a sliding rod is arranged between the two machine bases;

[0013] A clamping drive mechanism, wherein the clamping drive mechanism is fixed on the machine base;

[0014] A sliding seat, the sliding seat is arranged at the output end of the clamping drive mechanism and is slidably connected to the slide rod, and the clamping drive mechanism can drive the sliding seat to slide along the slide rod;

[0015] A clamping top plate is arranged on the sliding seat. When the two sliding seats are close to each other, the two clamping top plates can contact and squeeze the rectangular stirrups to be formed to form the butterfly reinforcement.

[0016] In some embodiments, the end of the clamping top plate is provided with a step surface, and the rectangular stirrup to be formed can be confined within the step surface.

[0017] In some embodiments, the clamping drive assembly further includes a displacement sensor, and the displacement sensor includes a fixed part and a movable part, wherein one of the fixed part and the movable part is connected to the sliding seat, and the other is connected to the machine base.

[0018] In some embodiments, two sliding bars are provided, and the two sliding bars are spaced apart on both sides of the base along the first direction.

[0019] In some embodiments, the two clamping drive assemblies are symmetrically arranged on both sides of the mold along the second direction.

[0020] In some embodiments, a through hole is provided on the mold along the third direction, and a guide column passes through the through hole and fixes the mold to the fixed base.

[0021] In some embodiments, a spacer sleeve is provided between the guide post and the through hole, and the spacer sleeve is sleeved on the guide post and movably connected to the guide post, so that the mold can rotate around the guide post.

[0022] In some embodiments, the ejection assembly includes an ejection drive mechanism and an ejector shaft, the ejection drive mechanism is arranged on the fixed base below the mold, the ejector shaft is arranged above the fixed base and below the butterfly rib between the two molds, and the output end of the ejection drive mechanism passes through the fixed base along the third direction and is connected to the ejector shaft to drive the ejector shaft to eject the butterfly rib upward.

[0023] In some embodiments, the clamping drive mechanism is a hydraulic cylinder, and the ejection drive mechanism is a hydraulic cylinder.

[0024] Beneficial effects of the utility model:

[0025] The butterfly rib flat extrusion stirrup forming mechanism provided by the utility model realizes the flat extrusion stirrup forming of the rectangular stirrup to be formed by setting a sleeved and installed mold and a clamping driving component on a fixed base, and realizes the automatic welding and fixing after the stirrup is formed by setting an automatic welding mechanism, with high automation degree, time saving, high forming efficiency of the butterfly rib and good consistency; by setting an ejection component on the fixed base, the ejection of the welded and formed butterfly rib from the mold is realized, reducing the labor intensity of workers and realizing the automatic integrated forming of the rectangular stirrup into the butterfly rib. Brief Description of the Drawings

[0026] Figure 1 is the front view of the butterfly rib flat extrusion stirrup forming mechanism provided by the embodiment of the utility model;

[0027] Figure 2 is the side view of the butterfly rib flat extrusion stirrup forming mechanism provided by the embodiment of the utility model;

[0028] Figure 3 is the top view of the butterfly rib flat extrusion stirrup forming mechanism provided by the embodiment of the utility model;

[0029] Figure 4 is the three-dimensional structure schematic diagram of the butterfly rib flat extrusion stirrup forming mechanism provided by the embodiment of the utility model;

[0030] Figure 5 is the structure schematic diagram of the rectangular stirrup to be formed in the embodiment of the utility model;

[0031] Figure 6 is the structure schematic diagram of the first butterfly rib after welding and forming in the embodiment of the utility model;

[0032] Figure 7 is the structure schematic diagram of the second butterfly rib after welding and forming in the embodiment of the utility model.

[0033] In the figure:

[0034] 100, rectangular stirrup to be formed; 200, first butterfly rib; 300, second butterfly rib;

[0035] 1, fixed base; 11, sliding rod; 12, locking piece; 2, mold; 21, guide post; 22, spacer sleeve; 3, clamping driving component; 31, machine base; 32, clamping driving mechanism; 321, output shaft; 33, sliding seat; 34, clamping top plate; 341, stepped surface; 35, displacement sensor; 4, automatic welding mechanism; 5, ejection component; 51, ejection driving mechanism; 52, ejecting shaft. Detailed Embodiments

[0036] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0037] In the description of the present utility model, unless otherwise clearly specified and defined, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0039] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] The present utility model provides a forming mechanism for plane extruding stirrups of butterfly stirrups, as Figures 1-7 shown, for forming the Figure 5 shown rectangular stirrup 100 to be formed into the Figure 6 shown first butterfly stirrup 200 or the Figure 7 shown second butterfly stirrup 300. Both the first butterfly stirrup 200 and the second butterfly stirrup 300 are plane stirrups. Relative to the standard line L, the central position of the second butterfly stirrup 300 protrudes towards one side and forms an arc-shaped butterfly stirrup.

[0041] Specifically, the butterfly rib flat extrusion stirrup forming mechanism of the present utility model includes a fixed base 1, a mold 2, a clamping drive assembly 3, an automatic welding mechanism 4, and an ejection assembly 5. Among them, there are two molds 2, and the two molds 2 are arranged on the fixed base 1 at intervals in the first direction (X direction). The rectangular stirrup 100 to be formed is sleeved on the two molds 2; there are two clamping drive assemblies 3, and the two clamping drive assemblies 3 are arranged on the fixed base 1 and are oppositely arranged on both sides of the two molds 2 in the second direction (Y direction). The output ends of the two clamping drive assemblies 3 can approach each other along the second direction and squeeze the rectangular stirrup 100 to be formed to form a butterfly rib; the automatic welding mechanism 4 is used for welding and forming the formed butterfly rib; the ejection assembly 5 is arranged on the fixed base 1, and the output end of the ejection assembly 5 is arranged facing the middle position of the two molds 2 in the third direction (Z direction). The output end of the ejection assembly 5 can eject the welded and formed butterfly rib out of the mold 2 along the third direction.

[0042] The butterfly rib flat extrusion stirrup forming mechanism provided by the embodiment of the present utility model realizes the flat extrusion stirrup forming of the rectangular stirrup 100 to be formed by arranging the sleeved mold 2 and the clamping drive assembly 3 on the fixed base 1. By setting the automatic welding mechanism 4, the automatic welding and fixing after the stirrup is formed are realized. The automation degree is high, time is saved, the forming efficiency of the butterfly rib is high, and the consistency is good; by setting the ejection assembly 5 on the fixed base 1, the formed butterfly rib is ejected out of the mold 2, reducing the labor intensity of workers and realizing the automatic integrated forming of the rectangular stirrup into the butterfly rib. In the prior art, the butterfly rib is formed by bending and welding a straight stirrup. Although the one-time forming of the straight stirrup into the butterfly rib is realized, the equipment is complex and the operation is cumbersome; in the embodiment of the present utility model, the rectangular stirrup 100 to be formed is prepared in advance, and the rectangular stirrup 100 to be formed is sleeved on the two molds 2. The shapes of the two molds 2 are arranged to match the formation of the butterfly rib. Then, the formation of the butterfly rib can be realized by the clamping movement of the clamping drive assembly 3 towards the rectangular stirrup 100 to be formed. The movement mode of the clamping drive assembly 3 is simple, easy to control, and can improve the forming efficiency and quality. The consistency of the batch-formed butterfly ribs is good. It should be noted that the automatic welding mechanism 4 is hinged or movably connected to the fixed base 1, and the welding and fixing of the middle position of the butterfly rib can be realized. The specific connection form and welding structure both adopt the common automatic welding mechanism 4 in the prior art, and this embodiment will not be elaborated and limited.

[0043] In some embodiments, the two clamping drive assemblies 3 have the same structure and are symmetrically arranged relative to the two molds 2 along the second direction. The clamping drive assembly 3 includes a base 31, a clamping drive mechanism 32, a sliding seat 33, and a clamping top plate 34. Among them, the base 31 is fixedly arranged on the fixed base 1, and a slide bar 11 is arranged between the two bases 31 of the two clamping drive assemblies 3; the clamping drive mechanism 32 is fixed on the base 31; the sliding seat 33 is arranged at the output end of the clamping drive mechanism 32 and is slidably connected to the slide bar 11, and the clamping drive mechanism 32 can drive the sliding seat 33 to slide along the slide bar 11; the clamping top plate 34 is arranged on the sliding seat 33. When the two sliding seats 33 approach each other, the two clamping top plates 34 can contact and squeeze the rectangular stirrup 100 to be formed to form the butterfly stirrup.

[0044] As Figures 1-4 shown, the two bases 31 are arranged at both ends of the fixed base 1 at intervals along the second direction. One slide bar 11 is respectively arranged on both sides of the two bases 31 along the first direction, so that both sides of the sliding seat 33 can be slidably connected to the two slide bars 11 respectively, having a stable sliding plane and stable sliding. Both ends of the slide bar 11 respectively pass through the fixing holes on the base 31 and are locked and fixed by a locking member 12 (such as a nut). The sliding seat 33 is slidably connected to the slide bar 11 between the two bases 31, and the clamping top plate 34 faces the mold 2 and is used to squeeze the rectangular stirrup 100 to be formed on the mold 2. Among them, the clamping drive mechanism 32 can be an oil cylinder, which has good linear motion. An output shaft 321 is arranged at the output end of the clamping drive mechanism 32, and the sliding seat 33 is connected to the output shaft 321. The output shaft 321 of the clamping drive mechanism 32 drives the sliding seat 33 to slide, thereby realizing automatic drive control, and the power of the oil cylinder is sufficient, and the clamping and forming efficiency is high. It should be noted that the front end face of the clamping top plate 34 is used to contact and press the rectangular stirrup 100 to be formed. Therefore, the shape of the front end face of the clamping top plate 34 is adapted to the formation of the formed butterfly stirrup. In order to facilitate the limitation of the rectangular stirrup 100 to be formed during the clamping process, a step surface 341 is arranged at the end of the clamping top plate 34, and the rectangular stirrup 100 to be formed can be limited within the step surface 341. As Figure 4 shown, the height (dimension along the third direction) of the step surface 341 matches the outer diameter dimension of the rectangular stirrup 100 to be formed. The step surface 341 can limit the rectangular stirrup 100 to be formed between the surface of the clamping top plate 34 and the fixed base 1, so that the rectangular stirrup 100 to be formed only deforms in the XY plane after being squeezed, avoiding the protrusion in the Z direction from affecting the forming shape.

[0045] In some embodiments, the clamping drive assembly 3 further includes a displacement sensor 35. The displacement sensor 35 includes a fixed part and a movable part. Among the fixed part and the movable part, one is connected to the sliding seat 33 and the other is connected to the base 31.

[0046] In this embodiment, the displacement sensor 35 is used to control the stroke of the clamping drive mechanism 32. According to the finished product size requirements of the butterfly stirrup, the displacement sensor 35 is appropriately adjusted to set the stroke of the clamping drive mechanism 32. After the output shaft 321 of the clamping drive mechanism 32 drives the sliding seat 33 to move in place, the clamping top plate 34 extrudes the rectangular plane stirrup to be formed into the first butterfly stirrup 200 or the second butterfly stirrup 300. Of course, in some other embodiments, for the stroke of the clamping drive mechanism 32, it is not limited to using the displacement sensor 35, and a controller or the like can also be used for control.

[0047] In some embodiments, the mold 2 is provided with a through hole along the third direction, and the guide post 21 passes through the through hole and fixes the mold 2 to the fixed base 1.

[0048] Specifically, the guide post 21 can be a bolt. After the bolt passes through the mold 2 and the fixed base 1 from top to bottom in sequence, the bolt is locked by a nut to fix the mold 2 on the fixed base 1. By setting the locking degree of the nut and the bolt, the pre-tightening force between the mold 2 and the fixed base 1 can be relatively adjusted, so that the mold 2 can be completely fixedly connected to the fixed base 1, or can have a certain degree of movement relative to the fixed base 1, so that the rectangular stirrup 100 to be formed on the mold 2 can rotate a certain angle along with the clamping top plate 34 when being pushed by the clamping top plate 34, so as to form butterfly stirrups of multiple sizes and shapes.

[0049] In some embodiments, a spacer sleeve 22 is provided between the guide post 21 and the through hole. The spacer sleeve 22 is sleeved on the guide post 21 and is movably connected to the guide post 21, so that the mold 2 can rotate around the guide post 21.

[0050] In order to make it more convenient for the mold 2 to rotate, in this embodiment, a spacer sleeve 22 is provided between the guide post 21 and the through hole, which can reduce the friction between the mold 2 and the guide post 21. Further, the spacer sleeve 22 penetrates through the mold 2 and the fixed base 1 to isolate the guide post 21, reducing the frictional resistance, so as to facilitate the rotation of the mold 2. When the distances between the output shafts 321 of the two clamping drive mechanisms 32 and the rectangular stirrup 100 to be formed are different, it will cause the output shaft 321 with a longer extension distance to move the rectangular stirrup 100 to be formed convexly toward the side of the output shaft 321 with a shorter extension distance, and then obtain the second butterfly stirrup 300 with an arc convexly deformed relative to the standard line. When the two clamping drive mechanisms 32 are symmetrically arranged on both sides of the mold 2 and have the same output distance of the output shafts 321, the rectangular stirrup 100 to be formed is subjected to symmetric thrusts, and then the first butterfly stirrup 200 consistent with the standard line L is obtained.

[0051] In some embodiments, the ejection assembly 5 includes an ejection driving mechanism 51 and an ejection shaft 52. The ejection driving mechanism 51 is disposed below the fixed base 1 and away from the mold 2, and the ejection shaft 52 is disposed above the fixed base 1 and below the butterfly rib between the two molds 2. The output end of the ejection driving mechanism 51 penetrates through the fixed base 1 and is connected to the ejection shaft 52 to drive the ejection shaft 52 to eject the butterfly rib upward.

[0052] As Figure 1 and Figure 2 shown, the ejection driving mechanism 51 may use an oil cylinder as the driving member. The ejection driving structure is fixed on the fixed base 1. The output end of the ejection driving mechanism 51 is vertically upward along the third direction and can drive the ejection shaft 52 to rise to eject the welded butterfly rib out of the mold 2. It can be understood that the width of the ejection shaft 52 along the second direction is at least greater than the sum of the diameters of the two stirrups at the middle position of the butterfly rib, so that the ejection shaft 52 can support the middle position of the butterfly rib to rise and separate from the mold 2. To facilitate the lifting and lowering of the output end of the driving mechanism 51 along the third direction, an avoidance hole or a through hole is provided on the fixed base 1, and the output end of the driving mechanism 51 can penetrate through the avoidance hole or the through hole to drive the movement of the ejection shaft 52 along the third direction.

[0053] In some embodiments, the clamping driving mechanism 32 is an oil cylinder, and the ejection driving mechanism 51 is an oil cylinder. According to the strength and stiffness of the butterfly rib, a cylinder or a linear motor can also be used for substitution.

[0054] The method steps of forming the butterfly rib planar extrusion stirrup by the butterfly rib planar extrusion stirrup forming mechanism provided in any of the above embodiments are as follows:

[0055] S1, sleeving the rectangular stirrup 100 to be formed on the two molds 2;

[0056] S2, the output ends of the two clamping driving mechanisms 32 approach each other along the second direction and squeeze the rectangular stirrup 100 to be formed to form a butterfly rib;

[0057] S3, the automatic welding mechanism 4 welds the middle position of the butterfly rib;

[0058] S4, the ejection assembly 5 ejects the welded butterfly rib out of the mold 2 along the third direction.

[0059] In the steps of the above-mentioned method for forming a flat extruded stirrup with butterfly ribs, after the previous mechanism automatically places the rectangular stirrup 100 to be formed on the flat surface at the required position of the mold 2, the clamping drive mechanisms 32 on both sides extend the output shafts 321 towards the rectangular stirrup 100 to be formed according to the set stroke, and drive the sliding seat 33 and the clamping top plate 34 thereon to extrude the rectangular stirrup 100 to be formed in place to form butterfly ribs. The middle position of the extruded and formed butterfly ribs is welded by the automatic welding mechanism 4, and after welding, the formed butterfly rib finished product is ejected by the ejection assembly 5, which greatly improves the degree of automation, reduces the labor intensity of workers, improves the forming efficiency of butterfly ribs, and the consistency of a large number of produced butterfly ribs is good.

[0060] In some embodiments, when the output ends of the two clamping drive mechanisms 32 move different distances, the two molds 2 rotate around their respective guide columns 21 respectively, and the middle position of the butterfly ribs displaces along the second direction and forms a butterfly rib with a single-sided bend.

[0061] It can be understood that the mold 2 is rotatably connected to the fixed base 1. When the extending distances of the output shafts 321 of the two clamping drive mechanisms 32 symmetrically arranged on both sides of the mold 2 are the same, the rectangular stirrup 100 to be formed will form the first butterfly rib 200 after being pushed by the clamping top plate 34, and both sides of the multiple weld points (the weld points form a welding line) of the first butterfly rib 200 are symmetrically deformed; when the extending distances of the output shafts 321 of the two clamping drive mechanisms 32 symmetrically arranged on both sides of the mold 2 are different, the rectangular stirrup 100 to be formed will drive the mold 2 to rotate through the stirrup after being pushed by the clamping top plate 34, and then form the second butterfly rib 300 with a convex arc relative to the standard line L. Both sides of the multiple weld points (the weld points form a welding line) of the second butterfly rib 300 move towards or away from the standard line simultaneously. By setting the rotation of the mold 2, the clamping drive assembly 3 can extrude and deform the rectangular stirrup 100 to be formed into various forms of flat butterfly ribs.

[0062] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Butterfly bar plane extrusion stirrup forming mechanism, characterized in that: include: A fixed base (1); A mold (2), wherein two molds (2) are provided, and the two molds (2) are arranged on the fixed base (1) at intervals along a first direction, and the rectangular stirrups (100) to be formed are sleeved on the two molds (2); A clamping drive assembly (3), wherein two clamping drive assemblies (3) are provided, and the two clamping drive assemblies (3) are arranged on the fixed base (1) and are arranged on both sides of the two molds (2) relatively along the second direction, and the output ends of the two clamping drive assemblies (3) are capable of approaching each other along the second direction and squeezing the rectangular stirrups (100) to be formed to form butterfly stirrups; An automatic welding mechanism (4), the automatic welding mechanism (4) being used to weld and shape the butterfly ribs; An ejection assembly (5), wherein the ejection assembly (5) is arranged on the fixed base (1), and an output end of the ejection assembly (5) is arranged along a third direction facing the middle position of the two molds (2), and the output end of the ejection assembly (5) can eject the butterfly rib formed by welding out of the mold (2) along the third direction.

2. The butterfly bar plane extrusion stirrup forming mechanism according to claim 1 is characterized in that: The clamping drive assembly (3) comprises: A machine base (31), wherein the machine base (31) is fixedly arranged on the fixed base (1), and a sliding rod (11) is arranged between two machine bases (31); A clamping drive mechanism (32), wherein the clamping drive mechanism (32) is fixed on the machine base (31); a sliding seat (33), the sliding seat (33) being arranged at the output end of the clamping drive mechanism (32) and being slidably connected to the slide bar (11), the clamping drive mechanism (32) being capable of driving the sliding seat (33) to slide along the slide bar (11); A clamping top plate (34), wherein the clamping top plate (34) is arranged on the sliding seat (33), and when the two sliding seats (33) are close to each other, the two clamping top plates (34) can contact and squeeze the rectangular stirrups (100) to be formed to form the butterfly reinforcement.

3. The butterfly bar plane extrusion stirrup forming mechanism according to claim 2 is characterized in that: The end of the clamping top plate (34) is provided with a step surface (341), and the rectangular stirrup (100) to be formed can be confined within the step surface (341).

4. The butterfly bar plane extrusion stirrup forming mechanism according to claim 2 is characterized in that: The clamping drive assembly (3) also includes a displacement sensor (35), and the displacement sensor (35) includes a fixed part and a movable part, one of the fixed part and the movable part is connected to the sliding seat (33), and the other is connected to the machine base (31).

5. The butterfly bar plane extrusion stirrup forming mechanism according to claim 2, characterized in that: Two sliding bars (11) are provided, and the two sliding bars (11) are arranged at intervals on both sides of the machine base (31) along the first direction.

6. The butterfly bar plane extrusion stirrup forming mechanism according to claim 1, characterized in that: The two clamping drive assemblies (3) are symmetrically arranged on both sides of the mold (2) along the second direction.

7. The butterfly bar plane extrusion stirrup forming mechanism according to claim 1, characterized in that: The mold (2) is provided with a through hole along the third direction, and a guide column (21) passes through the through hole and fixes the mold (2) to the fixed base (1).

8. The butterfly bar plane extrusion stirrup forming mechanism according to claim 7, characterized in that: A spacer sleeve (22) is provided between the guide post (21) and the through hole; the spacer sleeve (22) is sleeved on the guide post (21) and is movably connected to the guide post (21), so that the mold (2) can rotate around the guide post (21).

9. The butterfly bar plane extrusion stirrup forming mechanism according to claim 2, characterized in that: The ejection assembly (5) comprises an ejection drive mechanism (51) and an ejection shaft (52); the ejection drive mechanism (51) is arranged on the fixed base (1) at a lower part away from the mold (2); the ejection shaft (52) is located below the butterfly rib between the two molds (2); the output end of the ejection drive mechanism (51) passes through the fixed base (1) along the third direction and is connected to the ejection shaft (52) to drive the ejection shaft (52) to eject the butterfly rib upward.

10. The butterfly bar plane extrusion stirrup forming mechanism according to claim 9, characterized in that: The clamping drive mechanism (32) is an oil cylinder, and the ejection drive mechanism (51) is an oil cylinder.

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