CN214768413U - Necking machine die for producing composite seamless steel pipe - Google Patents

Abstract

The utility model discloses a necking machine mould for producing composite seamless steel pipes, wherein an upper pressure seat is arranged above a fixed seat, two necking moulds are fixedly connected on the fixed seat, a push plate is inserted on the fixed seat in a sliding manner, the upper ends of two push rods are correspondingly inserted in the two necking moulds, and the bottom ends of the two push rods are fixedly connected with the push plate; the necking die comprises a die core, a die holder and a limiting cover, wherein the die holder is fixedly connected to the fixed base, a step through hole is formed in the axis direction of the die holder, the die core is arranged in the step through hole, the limiting cover is fixedly connected to the die holder, the die core is positioned on the die holder through the limiting cover, and a necking die cavity is formed in the die core. The pushing-out of the pipe fitting and the application of the pressure of the pipe fitting are respectively arranged on two sides, so that the structure of the whole necking machine is more compact. The utility model provides a throat mould is for dismantling the structure of displaceable, when there is work loss at the mold core, only need to change the mold core can, very big saving the cost.

Description

Necking machine die for producing composite seamless steel pipe

The technical field is as follows:

the utility model relates to a throat machine mould is used in production of compound seamless steel pipe.

Background art:

seamless steel pipe is in the use, often need zoom to the mouth, current steel pipe throat mould is after the pipe fitting throat is accomplished, the pipe fitting is deviate from and is pulled out through anchor clamps centre gripping pipe fitting afterbody, because thrust when pipe fitting extrusion throat is also applyed by the pipe fitting afterbody, consequently anchor clamps and power supply all set up at the afterbody, the structure that causes the throat machine occupies the space great, the structure is not compact, in addition, current throat mould is mostly the integral type structure, after the throat die cavity pull loss at the mould, only need whole change throat mould, use cost is higher.

The invention content is as follows:

the utility model provides a compound production of seamless steel pipe is with throat machine mould for solve the problem that above-mentioned prior art exists.

The utility model discloses the technical scheme who adopts has: a necking machine die for producing a composite seamless steel tube comprises an upper pressing seat, necking dies, a fixed seat, push rods and a push plate, wherein the upper pressing seat is arranged above the fixed seat, the two necking dies are fixedly connected to the fixed seat, the push plate is inserted on the fixed seat in a sliding manner, the upper ends of the two push rods are correspondingly inserted into the two necking dies, and the bottom ends of the two push rods are fixedly connected with the push plate; the necking die comprises a die core, a die holder and a limiting cover, wherein the die holder is fixedly connected to the fixed base, a step through hole is formed in the axis direction of the die holder, the die core is arranged in the step through hole, the limiting cover is fixedly connected to the die holder, the die core is positioned on the die holder through the limiting cover, and a necking die cavity is formed in the die core.

Further, the push rod comprises a straight rod part and a supporting platform, the supporting platform is fixedly connected to the top end of the straight rod part, and the supporting platform extends into the die holder and is located below the die core.

Furthermore, the upper pressure seat comprises an upper pressure plate and two limiting sleeves, the two limiting sleeves are fixedly connected to the bottom surface of the upper pressure plate, and each limiting sleeve is coaxial with the necking die cavity on one die core correspondingly.

Furthermore, two sliding arms are arranged on the fixed seat, a sliding groove is formed in the inner wall of each sliding arm, and convex sliding ribs are arranged at two ends of the push plate and are arranged in the sliding grooves in a sliding mode.

Furthermore, a guide rod is fixedly connected to the fixed seat, and the push plate is movably inserted on the guide rod.

The utility model discloses following beneficial effect has:

the utility model discloses set up two pairs of throat moulds, once can carry out the throat operation of two seamless steel pipes, raise the efficiency, the release of pipe fitting and the application of pipe fitting pressure set up respectively in both sides in addition, can be so that the structure of whole throat machine is compacter.

The utility model provides a throat mould is for dismantling the structure of displaceable, when the mold core has work loss, only need to change the mold core can, during the production of mold core, only need use few material, very big saving the cost.

Description of the drawings:

fig. 1 is a sectional view of the present invention.

Fig. 2 is a three-dimensional view of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the accompanying drawings.

Like fig. 1 and fig. 2, the utility model relates to a compound seamless steel pipe production is with throat machine mould, including last seat 1, throat mould 2, fixing base 3, push rod 4 and push pedal 5 of pressing.

Go up and press seat 1 to locate the top of fixing base 3, go up and press seat 1 and provide the power supply of pressure and link to each other. Two throat moulds 2 fixed connection are on fixing base 3, and push pedal 5 slides and pegs graft on fixing base 3, and the upper end of two push rods 4 is pegged graft in two throat moulds 2 correspondingly, and the bottom and the push pedal 5 fixed connection of two push rods 4.

The utility model discloses set up two pairs of throat moulds 2, once can carry out the throat operation of two seamless steel pipes, raise the efficiency, the release of pipe fitting and the application of pipe fitting pressure set up respectively in both sides in addition, can be so that the structure of whole throat machine is compacter.

The utility model provides a throat mould 2 includes mold core 21, mold base 22 and spacing lid 23, and mold base 22 fixed connection is equipped with the step through-hole on fixing base 3 in the axle center direction of mold base 22, and in the step through-hole was arranged in to mold core 21, spacing lid 23 fixed connection was on mold base 22, and spacing lid 23 was fixed a position mold core 21 on mold base 22, was equipped with the throat die cavity on mold core 21.

The utility model provides a throat mould 2 is for dismantling the structure of displaceable, when there is work loss at mold core 21, only need change mold core 21 can, during the production of mold core 21, only need use few materials, very big saving the cost.

For the convenience with the pipe fitting 400 after the throat release from throat mould 2 in, set up the push rod in the below of mould, push rod 4 includes straight rod portion 41 and brace table 42, brace table 42 fixed connection is on the top of straight rod portion 41, brace table 42 stretches in die holder 22, and is located the below of mold core 21.

When the pipe is being necked down, the support platform 42 extends below the necking die cavity and also serves to support the pipe.

The utility model provides an upper pressure seat 1 includes top board 11 and stop collar 12, and top board 11 links to each other with the power supply, and two 12 fixed connection of stop collar are on top board 11's bottom surface, and every stop collar 12 correspond with the throat die cavity on the mold core 21 coaxial.

In order to facilitate the push plate 5 to be inserted into the fixed seat 3 in a sliding manner, two sliding arms 31 are arranged on the fixed seat 3, a sliding groove 32 is arranged on the inner wall of each sliding arm 31, two convex sliding ribs 51 are arranged at two ends of the push plate 5, and the sliding ribs 51 are arranged in the sliding grooves 32 in a sliding manner.

In order to ensure that the push plate 5 slides more stably, a guide rod 6 is fixedly connected to the fixed seat 3, and the push plate 5 is movably inserted on the guide rod 6.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides a compound seamless steel pipe production is with throat machine mould which characterized in that: the automatic pipe-cutting machine comprises an upper pressing seat (1), necking dies (2), a fixed seat (3), push rods (4) and a push plate (5), wherein the upper pressing seat (1) is arranged above the fixed seat (3), the two necking dies (2) are fixedly connected onto the fixed seat (3), the push plate (5) is inserted onto the fixed seat (3) in a sliding manner, the upper ends of the two push rods (4) are correspondingly inserted into the two necking dies (2), and the bottom ends of the two push rods (4) are fixedly connected with the push plate (5); the necking die (2) comprises a die core (21), a die holder (22) and a limiting cover (23), wherein the die holder (22) is fixedly connected onto the fixing base (3), a step through hole is formed in the axis direction of the die holder (22), the die core (21) is arranged in the step through hole, the limiting cover (23) is fixedly connected onto the die holder (22), the limiting cover (23) positions the die core (21) on the die holder (22), and a necking die cavity is formed in the die core (21).

2. A necking machine die for producing a composite seamless steel tube according to claim 1, wherein: the push rod (4) comprises a straight rod part (41) and a supporting table (42), the supporting table (42) is fixedly connected to the top end of the straight rod part (41), and the supporting table (42) extends into the die holder (22) and is located below the die core (21).

3. A necking machine die for producing a composite seamless steel tube according to claim 1, wherein: the upper pressure seat (1) comprises an upper pressure plate (11) and two limiting sleeves (12), wherein the two limiting sleeves (12) are fixedly connected to the bottom surface of the upper pressure plate (11), and each limiting sleeve (12) is coaxial with a necking die cavity on one die core (21) correspondingly.

4. A necking machine die for producing a composite seamless steel tube according to claim 1, wherein: the fixed seat (3) is provided with two sliding arms (31), the inner wall of each sliding arm (31) is provided with a sliding groove (32), two ends of the push plate (5) are provided with convex sliding ribs (51), and the sliding ribs (51) are arranged in the sliding grooves (32) in a sliding mode.

5. A necking machine die for producing a composite seamless steel tube according to claim 1, wherein: the fixed seat (3) is fixedly connected with a guide rod (6), and the push plate (5) is movably inserted on the guide rod (6).

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