CN216516492U - Extrusion tool for prestressed stranded wire or prestressed reinforcement fixed end - Google Patents

Abstract

The utility model relates to the field of building construction equipment, in particular to an extrusion tool for a prestressed stranded wire or a prestressed reinforcement fixed end. The extrusion die comprises an extruder, an extrusion die and an ejector rod which are arranged on the extruder, wherein the bottom of the extruder is fixedly connected with a base, a limiting plate is connected onto the extrusion die in a sliding manner, a plurality of connecting rods are fixedly connected onto the limiting plate along the circumferential direction, a plurality of sleeves which are connected with the connecting rods in a sliding manner are fixedly connected onto the outer circumference of the extrusion die, and a hollow accommodating area is formed between the limiting plate and the extrusion die; the limiting plate is provided with a U-shaped opening for the steel strand to pass through, a plurality of limiting protrusions are arranged on the outer side surface of the limiting plate at intervals up and down, the base is rotatably provided with a limiting rod, and the limiting rod is abutted to the limiting protrusions. The extrusion work of the existing extruding anchor device special extruder and the existing bearing plate extruder on the extruding anchor device and the bearing plate can be completed simultaneously, so that two extruding processes can be completed in the same process, and the quality stability of a final finished product is improved.

Description

Extrusion tool for prestressed stranded wire or prestressed reinforcement fixed end

Technical Field

The utility model relates to the field of building construction equipment, in particular to an extrusion tool for a prestressed stranded wire or a prestressed reinforcement fixed end.

Background

The prestress technology is that before a component is not installed and used, pressure is applied to a part which is possibly pulled apart after the component is subjected to external force in advance to promote the component to generate prestress so as to counteract tensile stress generated by the action of the external force and reduce poor appearance and component cracks; in civil engineering construction, because steel wires, steel strands or steel bars have high tensile strength, in order to exert the function of high-strength steel bars in a reinforced concrete structure, prestress needs to be applied to the steel bars in advance in a member or structure; the prestressed concrete is characterized in that before the structure bears load, internal stress is artificially introduced into concrete or reinforced concrete in advance to offset stress generated under use load, so that the concrete member does not crack, delays cracking or reduces the width of crack cracking under the action of the use load; the method is widely applied to the fields of various municipal bridge engineering, building engineering and building reinforcement engineering at present, and has achieved good effects.

In production practice, steel strands in prestressed components (mainly box beams, roof beam plates and the like) need to be preprocessed when in use, an extrusion anchorage device is fixed with the fixed end of the steel strand or the prestressed tendon through a special extruder, and then a bearing plate is fixed with the extrusion anchorage device through an extrusion bearing plate tool, so that the normal use of the steel strand or the prestressed tendon can be ensured; however, the processes of the above methods are complicated, the extrusion anchorage device and the bearing plate cannot be fixed to the fixed end of the steel strand or the prestressed tendon at the same time, which is troublesome and labor-consuming and has low working efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems, and provides an extrusion tool for a prestressed steel strand or a prestressed reinforcement fixed end, which can simultaneously complete the extrusion work of the existing extrusion anchor special extruder and the existing bearing plate extruder on an extrusion anchor and a bearing plate, so that two extrusion processes can be completed in the same process, thereby not only saving manpower and material resources, but also improving the working efficiency.

The utility model solves the problems and adopts the technical scheme that:

an extrusion tool for a fixed end of a prestressed steel strand or a prestressed tendon comprises an extruder, an extrusion die and an ejector rod, wherein the extrusion die and the ejector rod are arranged on the extruder; the limiting plate is provided with a U-shaped opening for the steel strand to pass through, a plurality of limiting protrusions are arranged on the outer side surface of the limiting plate at intervals up and down, a limiting rod is rotatably mounted on the base, and the limiting rod is abutted to the limiting protrusions.

Compared with the prior art, the utility model adopting the technical scheme has the outstanding characteristics that:

the utility model can simultaneously complete the extrusion work of the existing extruding anchor special extruder and the bearing plate extruder aiming at the extruding anchor and the bearing plate, so that two extrusion processes can be completed in the same process, thereby not only saving manpower and material resources, but also improving the working efficiency, and simultaneously, because the extruding anchor and the bearing plate can be completed in the same process of the same equipment, the quality stability of the final finished product can be improved.

Preferably, the further technical scheme of the utility model is as follows:

cushion blocks are arranged on the upper surface of the base at intervals, the extruding machine is fixedly arranged on the cushion blocks, a hollow reserved space is formed between the base and the extruding machine, and the extruding die, the connecting rod at the bottom of the limiting plate and the sleeve are arranged in the reserved space; through foretell structure setting messenger connecting rod and sleeve slide in the headspace, and then be convenient for install and remove of steel strand wires and extrusion tool, promote work efficiency.

The bottom of the base is provided with a sliding wheel; the extrusion tool is convenient to move by arranging the sliding wheel, and more convenient assembly and disassembly with the steel strand are facilitated.

The two sides of the base in front of the limiting plate are respectively provided with a fixing sleeve, a rolling shaft is rotatably arranged in the fixing sleeve, the limiting rod comprises a first limiting rod and a second limiting rod which are fixedly connected to the rolling shaft, and the first limiting rod and the second limiting rod are axially arranged at intervals along the rolling shaft; the first limiting rod, the second limiting rod and the limiting protrusions are connected more stably through the structure, and the limiting effect of the limiting plate in the using process is improved.

The U-shaped opening corresponds to the extrusion die, and the opening of the U-shaped opening is arranged upwards; the structure is favorable for the assembly and disassembly of the steel strand at the limiting plate, so that the extrusion tool is more convenient to use.

The limiting plate is of a square, rectangular or circular structure, and is made of a steel plate with the thickness of 2 cm.

Drawings

FIG. 1 is a schematic diagram of a front view configuration of an embodiment of the present invention;

in the figure: 1. an extruder; 2. extruding the die; 3. a top rod; 4. a base; 5. cushion blocks; 6. reserving space; 7. a sliding wheel; 8. a limiting plate; 9. a connecting rod; 10. a sleeve; 11. an accommodating area; 12. a limiting bulge; 13. a limiting rod; 14. fixing the sleeve; 15. a roller; 16. steel strand wires; 17. extruding the anchor; 18. a bearing plate.

Detailed Description

The utility model will be better understood by the following description of embodiments thereof, but the applicant's specific embodiments are not intended to limit the utility model to the particular embodiments shown, and any changes in the definition of parts or features and/or in the overall structure, not essential changes, are intended to define the scope of the utility model.

Referring to fig. 1, the technical scheme of the utility model is as follows:

an extrusion tool for a fixed end of a prestressed steel strand or a prestressed tendon comprises an extruder 1, an extrusion die 2 and an ejector rod 3 which are arranged on the extruder 1, wherein a base 4 is fixedly welded on the bottom of the extruder 1, the base 4 is a steel plate with a rectangular structure, two cushion blocks 5 are welded on the upper surface of the base 4 at intervals along the length direction of the base, the extruder 1 is welded on the cushion blocks 5, a hollow reserved space 6 is formed between the extruder 1 and the base 4, a sliding wheel 7 is arranged on the bottom of the base 4, the extrusion tool is convenient to move by arranging the sliding wheel 7, and the extrusion tool is more convenient to assemble and disassemble with a steel strand 16;

a limiting plate 8 is connected to the extrusion die 2 in a sliding manner, the limiting plate 8 is of a square, rectangular or circular structure, the limiting plate 8 is a steel plate with the thickness of 2cm, a plurality of connecting rods 9 are welded on any surface of the limiting plate 8 along the circumferential direction, a plurality of sleeves 10 are welded on the outer circumferential surface of the extrusion die 2, the connecting rods 9 can be inserted into the sleeves 10 in a sliding manner, fixing pins are clamped on the other ends of the connecting rods 9, the fixing pins are arranged to prevent the connecting rods 9 from being separated from the sleeves 10, a hollow accommodating area 11 is formed between the limiting plate 8 and the extrusion die 2, the connecting rods 9 and the sleeves 10 at the bottoms of the extrusion die 2 and the limiting plate 8 are arranged in a reserved space 6, the limiting plate 8 is driven to move by the connecting rods 9 sliding in the sleeves 10, and further, the change of the range of the accommodating area 11 between the limiting plate 8 and the extrusion die 2 is realized by the movement of the limiting plate 8;

the limiting plate 8 is provided with a U-shaped opening corresponding to the extrusion die 2, the opening of the U-shaped opening is upwards arranged, a plurality of limiting protrusions 12 are welded on the other surface of the limiting plate 8 along the two sides of the U-shaped opening at intervals from top to bottom, a limiting rod 13 is rotatably mounted on the base 4, and the limiting rod 13 is abutted to the limiting protrusions 12.

Fixing sleeves 14 are respectively welded on two sides of the base 4 in front of the limiting plate 8, a roller 15 is rotatably mounted in each fixing sleeve 14, the limiting rod 13 comprises a first limiting rod and a second limiting rod which are fixedly welded on the roller 15, and the first limiting rod and the second limiting rod are arranged in parallel at intervals along the axial direction of the roller 15; the first limiting rod and the second limiting rod are connected with the limiting protrusions 12 more stably through the structure, and the limiting effect of the limiting plate 8 in the using process is improved.

The using method comprises the following steps: when the extrusion die is used, firstly, the extrusion tool is moved to the fixed end of the steel strand 16 through the sliding wheel 7, the fixed end of the steel strand 16 penetrates through the U-shaped opening on the limiting plate 8 and is placed in the accommodating area 11, the bearing plate 18 is placed in the accommodating area 11, the fixed end of the steel strand 16 sequentially penetrates through the bearing plate 18, the extrusion die 2 and the extrusion anchorage device 17 and is placed at the ejector rod 3, and the fixed end of the steel strand 16 is clamped in the ejector rod groove of the ejector rod 3; the limiting plate 8 slides in the sleeve 10 of the extrusion die 2 through the connecting rod 9, the limiting plate 8 is in contact with the bearing plate 18 in the containing area 11, the limiting rod 13 arranged on the base 4 is rotated, the limiting rod 13 is clamped at the limiting bulge 12 of the limiting plate 8, and the bearing plate 18 is limited to move through the limiting plate 8; starting the extruder 1 immediately, and fixing the extrusion anchorage 17, the bearing plate 18 and the fixed end of the steel strand 16 by the ejector rod 3; after the work is finished, the limiting rod 13 is rotated, the limiting plate 8 is moved, and the steel strand 16 is taken out.

The utility model can simultaneously complete the extrusion work of the existing extruding anchor 17 special extruder and the existing bearing plate 18 extruder aiming at the 17 extruding anchor and the 18 bearing plate, so that two extruding processes can be completed in the same process, thereby not only saving manpower and material resources, but also improving the working efficiency, and simultaneously, because the extruding anchor 17 and the bearing plate 18 can be completed in the same process of the same equipment, the quality stability of the final finished product can be improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.

Claims (6)

1. The utility model provides an extrusion tool for prestressing force strand wires or prestressing tendons stiff end, includes the extruder, locates extrusion die and ejector pin on the extruder, its characterized in that: the bottom of the extruder is fixedly connected with a base, the extrusion die is connected with a limiting plate in a sliding manner, the limiting plate is fixedly connected with a plurality of connecting rods along the circumferential direction, the outer circumference of the extrusion die is fixedly connected with a plurality of sleeves in sliding connection with the connecting rods, and a hollow accommodating area is formed between the limiting plate and the extrusion die; the limiting plate is provided with a U-shaped opening for the steel strand to pass through, a plurality of limiting protrusions are arranged on the outer side surface of the limiting plate at intervals up and down, a limiting rod is rotatably mounted on the base, and the limiting rod is abutted to the limiting protrusions.

2. The pressing tool for prestressed steel strand or tendon-fixing end as claimed in claim 1, wherein: the upper surface of base is equipped with the cushion at the interval, and extruder fixed mounting makes to form hollow headspace between base and the extruder on the cushion, and extrusion die and limiting plate bottom connecting rod and sleeve are arranged in the headspace.

3. The pressing tool for prestressed steel strand or tendon-fixing end as claimed in claim 2, wherein: the bottom of the base is provided with a sliding wheel.

4. The pressing tool for prestressed steel strand or tendon-fixing end as claimed in claim 1, wherein: the limiting device comprises a limiting plate and a limiting rod, wherein the limiting rod comprises a first limiting rod and a second limiting rod which are fixedly connected to the roller, and the first limiting rod and the second limiting rod are axially arranged at intervals along the roller.

5. The pressing tool for prestressed steel strand or tendon-fixing end as claimed in claim 1, wherein: the U-shaped opening corresponds to the extrusion die, and the opening of the U-shaped opening is arranged upwards.

6. The pressing tool for prestressed steel strand or tendon-fixing end as claimed in claim 1, wherein: the limiting plate is of a square, rectangular or circular structure, and is made of a steel plate with the thickness of 2 cm.

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