Die changing device for stainless steel pipeline production

Abstract

The utility model relates to a mould changing device for stainless steel pipeline production, which comprises a base and a pair of roller bodies, an adjusting mechanism is arranged on the base, two vertical frames are symmetrically arranged above the base through the adjusting mechanism, two inserting cylinders are rotationally arranged on the sides, close to each other, of the two vertical frames, and the positions of the inserting cylinders on the two sides are in one-to-one correspondence. The two shaft ends of the upper roller body are correspondingly inserted into the two upper inserting barrels respectively, the two shaft ends of the lower roller body are correspondingly inserted into the two lower inserting barrels respectively, the adjusting mechanism is used for driving the two vertical frames to be close to each other or away from each other, when the two vertical frames are close to each other, the two roller bodies can be clamped and fastened, and when the two vertical frames are away from each other, the two roller bodies can be clamped and fastened. And the shaft end can be separated from the insertion cylinder. The two vertical frames are driven to be close to or away from each other through the adjusting mechanism, so that the shaft end of the roller body is quickly inserted into or separated from the inserting cylinder without dismounting a bearing seat bolt, the die changing operation is converted into mechanical displacement, the die changing time is remarkably shortened, the problem that traditional die changing wastes time and labor is solved, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe technology, specifically to a mold changing device for stainless steel pipe production. Background Technology

[0002] In the continuous production and processing of stainless steel pipes, different products are produced using molds of different specifications. The molds used for stainless steel pipes are rollers, and the rollers have annular grooves. Two rollers are arranged one above the other, and the space between the two annular grooves forms a mold track for the pipe to pass through. The two rollers have four shaft ends, and each shaft end is fixed with a bearing seat. When changing molds, it is necessary to disassemble and assemble four bearing seats, which are usually fastened with bolts. This makes mold changes time-consuming and labor-intensive, and prevents quick changes, thus reducing production efficiency to some extent. Utility Model Content

[0003] The purpose of this utility model is to provide a mold changing device for stainless steel pipe production, which effectively solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution.

[0005] A mold-changing device for stainless steel pipe production includes a base and a pair of rollers. The base is equipped with an adjustment mechanism. Two uprights are symmetrically installed above the base via the adjustment mechanism. Two inserts are rotatably installed on the side of the two uprights that are close to each other. The positions of the inserts on both sides correspond one-to-one. The two shaft ends of the upper roller are respectively inserted into the two upper inserts, and the two shaft ends of the lower roller are respectively inserted into the two lower inserts. The adjustment mechanism is used to drive the two uprights to move closer or further apart. When the two uprights are close together, they can clamp and secure the two rollers. When the two uprights are far apart, the shaft ends can be disengaged from the inserts.

[0006] It can be seen that by adjusting the mechanism to drive the two uprights closer or further apart, the shaft end of the roller can be quickly inserted into or removed from the insert cylinder without disassembling the bearing seat bolts, eliminating four bolt disassembly and assembly steps. This transforms the mold changing operation into mechanical displacement, significantly shortening the mold changing time, solving the problem of time-consuming and labor-intensive traditional mold changing, and improving production efficiency.

[0007] Furthermore, the adjustment mechanism includes a bidirectional threaded rod and a pair of nut seats. A slide groove is provided above the base. The bidirectional threaded rod is rotatably installed in the slide groove. The two nut seats are symmetrically limited and slidably installed in the slide groove and threadedly fitted on both sides of the bidirectional threaded rod. Two uprights are respectively installed on the top of the nut seats on the corresponding sides.

[0008] Furthermore, the support frame is composed of an upper seat, a middle seat, and a base arranged from top to bottom. The base is fixed to a nut seat. Inserts are rotatably installed on the sides of the upper seat and the middle seat. The upper seat can be adjusted up and down relative to the middle seat, and the middle seat can be adjusted up and down relative to the base.

[0009] Furthermore, the bottom of the upper seat is provided with a first screw hole and a first guide hole extending vertically upwards, the top of the middle seat is rotatably mounted with a first threaded rod, the top of the middle seat is fixed with a first guide rod on one side of the first threaded rod, the first threaded rod is installed in the first screw hole with corresponding thread matching, and the first guide rod is slidably inserted into the first guide hole.

[0010] Furthermore, the bottom of the middle base is provided with a second screw hole and a second guide hole extending vertically upward. A second threaded rod is rotatably installed on the top of the base. A second guide rod is fixed on one side of the second threaded rod at the top of the base. The second threaded rod is installed in the second screw hole with corresponding thread matching. The second guide rod is slidably inserted into the second guide hole.

[0011] Furthermore, each of the first and second threaded rods is fixedly fitted with a screwing component.

[0012] Furthermore, the screw-on parts use hexagonal nuts.

[0013] Furthermore, one end of the bidirectional threaded rod extends through to the outer side of the base and is fitted with a rocker plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0015] This utility model uses an adjustment mechanism to drive the two uprights to move closer or further apart, so that the shaft end of the roller can be quickly inserted into or removed from the insert cylinder. There is no need to disassemble the bearing seat bolts, saving four bolt disassembly and assembly steps. The mold changing operation is transformed into mechanical displacement, which significantly shortens the mold changing time, solves the problem of time-consuming and labor-intensive traditional mold changing, and improves production efficiency.

[0016] The stand adopts a layered structure of upper seat, middle seat, and base. The relative heights of the upper seat and middle seat, and the middle seat and base can be adjusted by the first threaded rod and the second threaded rod, respectively. This allows for flexible adjustment of the height position of the insert cylinder, adapting to the die spacing and installation height of rollers of different specifications. There is no need to replace the overall structure, enhancing the versatility and adjustment flexibility of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the roller structure installation in this utility model;

[0019] Figure 3 This is a schematic diagram of the adjustment mechanism in this utility model;

[0020] Figure 4 This is one of the schematic diagrams of a partial structure of the support frame in this utility model;

[0021] Figure 5 This is the second schematic diagram of a partial structure of the support frame in this utility model.

[0022] In the diagram: 01, screwing component; 1, base; 2, adjusting mechanism; 201, slide groove; 21, double-threaded rod; 22, rocker plate; 23, nut seat; 3, upright frame; 31, upper seat; 311, first screw hole; 312, first guide hole; 32, middle seat; 321, second screw hole; 322, second guide hole; 33, base; 4, insert cylinder; 5, roller body; 51, shaft end; 8, first threaded rod; 81, first guide rod; 9, second threaded rod; 91, second guide rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0025] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0026] Example 1

[0027] Please see Figures 1-5The present invention provides a mold changing device for stainless steel pipe production, comprising a base 1 and a pair of rollers 5. An adjustment mechanism 2 is provided on the base 1. Two uprights 3 are symmetrically installed above the base 1 via the adjustment mechanism 2. Two inserts 4 are rotatably installed on the side of the two uprights 3 that are close to each other. The positions of the inserts 4 on both sides correspond one-to-one. The two shaft ends 51 of the upper roller 5 are respectively inserted into the two upper inserts 4, and the two shaft ends 51 of the lower roller 5 are respectively inserted into the two lower inserts 4. The adjustment mechanism 2 is used to drive the two uprights 3 to move closer to each other or further apart.

[0028] The installation method of roller body 5 is as follows:

[0029] Align the two shaft ends 51 of the upper roller 5 with the two upper inserts 4 respectively, and align the two shaft ends 51 of the lower roller 5 with the two lower inserts 4 respectively. Then, by operating the adjustment mechanism 2, drive the two side uprights 3 to move closer to each other until each shaft end 51 is inserted into the corresponding insert 4. When the two uprights 3 move closer to each other to their limit position, each shaft end 51 abuts against the inner end wall of the corresponding insert 4, thus realizing the installation of the roller 5 and preventing the roller 5 from running off-center. In addition, the insert 4 is rotatably installed, which gives the roller 5 the ability to rotate, which is convenient for steel pipe production.

[0030] The specific methods for disassembling and replacing roller 5 are as follows:

[0031] By operating the adjustment mechanism 2, the two uprights 3 are driven to move away from each other. At this time, the distance between the two insert cylinders 4 increases so that each shaft end 51 can be dislodged from the insert cylinder 4, thereby completing the disassembly of the roller body 5. Then, take the roller body 5 of the required specifications, align each shaft end 51 with each insert cylinder 4, and repeat the above installation process to complete the quick disassembly and replacement of the roller body 5.

[0032] like Figure 3 As shown, the adjustment mechanism 2 includes a bidirectional threaded rod 21 and a pair of nut seats 23. A slide groove 201 is provided above the base 1. The bidirectional threaded rod 21 is rotatably installed in the slide groove 201. The two nut seats 23 are symmetrically limited and slidably installed in the slide groove 201 and threadedly fitted on both sides of the bidirectional threaded rod 21. Two uprights 3 are respectively installed on the top of the nut seats 23 on the corresponding sides. One end of the bidirectional threaded rod 21 extends through to the outer side of the base 1 and is equipped with a rocker plate 22.

[0033] By shaking the rocker 22 in both the forward and reverse directions, the bidirectional threaded rod 21 is driven to rotate. The rotating bidirectional threaded rod 21 can drive the two nut seats 23 to move closer or further apart, so as to realize the clamping, installation and disassembly of the roller body 5 respectively.

[0034] The bidirectional threaded rod 21 is made of No. 45 steel and heat-treated. Its thread is a trapezoidal thread (tooth angle 30°), with a nominal diameter of 30mm and a pitch of 5mm. The threads at both ends are symmetrical to achieve bidirectional synchronous drive.

[0035] Example 2

[0036] Please see Figures 3-5 The difference between this embodiment and Embodiment 1 is that:

[0037] The support frame 3 is composed of an upper seat 31, a middle seat 32 and a base 33 arranged from top to bottom. The base 33 is fixed on the nut seat 23. The upper seat 31 and the middle seat 32 are rotatably mounted with inserts 4 on their sides.

[0038] Among them, such as Figure 4 As shown, the bottom end of the upper seat 31 is provided with a first screw hole 311 and a first guide hole 312 extending vertically upward. The top end of the middle seat 32 is rotatably mounted with a first threaded rod 8. The top end of the middle seat 32 is fixed with a first guide rod 81 on one side of the first threaded rod 8. The first threaded rod 8 is installed in the first screw hole 311 with corresponding thread matching. The first guide rod 81 is slidably inserted into the first guide hole 312.

[0039] By adjusting the first threaded rod 8, the upper seat 31 can be driven to rise and fall relative to the middle seat 32 under the threaded fit between the first threaded rod 8 and the first threaded hole 311 and the limiting and guiding action of the first guide rod 81 and the first guide hole 312, so as to match and adjust the installation distance between the two roller bodies 5.

[0040] Among them, such as Figure 5 As shown, the bottom end of the middle base 32 is provided with a second screw hole 321 and a second guide hole 322 extending vertically upward. The top end of the base 33 is rotatably mounted with a second threaded rod 9. The top end of the base 33 is fixed with a second guide rod 91 on one side of the second threaded rod 9. The second threaded rod 9 is installed in the second screw hole 321 with corresponding thread matching. The second guide rod 91 is slidably inserted into the second guide hole 322.

[0041] By adjusting the second threaded rod 9, the threaded engagement between the second threaded rod 9 and the second threaded hole 321, as well as the limiting and guiding action of the second guide rod 91 and the second guide hole 322, can drive the middle seat 32 and the upper seat 31 to be raised and lowered relative to the base 33, so as to adapt and adjust the installation height of the two roller bodies 5.

[0042] like Figure 4 and Figure 5As shown, each of the first threaded rods 8 and the second threaded rods 9 is fixedly fitted with a screwing component 01. The screwing component 01 is a hexagonal nut, and the hexagonal nut is of specification M20 with a width across flats of 30mm to fit a universal wrench. The outer surface of the hexagonal nut is blackened to enhance wear resistance. By using a wrench as a tool, the wrench is locked onto the screwing component 01, facilitating the tightening and adjustment of the first threaded rod 8 or the second threaded rod 9.

[0043] The specific structure, model and coefficient indicators of all components used in this utility model are its own technologies. As long as they can achieve its beneficial effects, they can be implemented. Therefore, they will not be described in detail.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mold changing device for stainless steel pipe production, comprising a base (1) and a pair of rollers (5), characterized in that: An adjustment mechanism (2) is provided on the base (1), and two uprights (3) are symmetrically installed above the base (1) through the adjustment mechanism (2). Two inserts (4) are rotatably installed on the side of each of the two uprights (3) that are close to each other, and the positions of the inserts (4) on both sides correspond one to one; The two shaft ends (51) of the upper roller (5) are respectively inserted into the two upper inserts (4), and the two shaft ends (51) of the lower roller (5) are respectively inserted into the two lower inserts (4); The adjustment mechanism (2) is used to drive the two uprights (3) to move closer to each other or further apart; When the two uprights (3) are close to each other, the two rollers (5) can be clamped and secured, and when the two uprights (3) are far apart, the shaft end (51) can be dislodged from the insert (4).

2. The mold changing device for stainless steel pipe production according to claim 1, characterized in that: The adjusting mechanism (2) includes a bidirectional threaded rod (21) and a pair of nut seats (23); A groove (201) is provided above the base (1), and the bidirectional threaded rod (21) is rotatably installed in the groove (201); The two nut seats (23) are symmetrically and slidably installed in the slide groove (201) and threadedly fitted on both sides of the bidirectional threaded rod (21); The two uprights (3) are respectively installed on the top of the nut seat (23) on the corresponding side.

3. The mold changing device for stainless steel pipe production according to claim 2, characterized in that: The support frame (3) is composed of an upper seat (31), a middle seat (32) and a base (33) arranged from top to bottom; The base (33) is fixed on the nut seat (23), and the insert (4) is rotatably installed on the side of both the upper seat (31) and the middle seat (32). The upper seat (31) can be raised and lowered relative to the middle seat (32), and the middle seat (32) can be raised and lowered relative to the base (33).

4. The mold changing device for stainless steel pipe production according to claim 3, characterized in that: The bottom end of the upper seat (31) is provided with a first screw hole (311) and a first guide hole (312) extending vertically upward. The top of the middle seat (32) is rotatably mounted with a first threaded rod (8), and the top of the middle seat (32) is fixed with a first guide rod (81) on one side of the first threaded rod (8). The first threaded rod (8) is installed in the first threaded hole (311) with corresponding thread matching, and the first guide rod (81) is slidably inserted in the first guide hole (312).

5. A mold changing device for stainless steel pipe production according to claim 4, characterized in that: The bottom end of the middle seat (32) is provided with a second screw hole (321) and a second guide hole (322) extending vertically upward. The base (33) is rotatably mounted with a second threaded rod (9), and the base (33) is fixed with a second guide rod (91) on one side of the second threaded rod (9). The second threaded rod (9) is installed in the second threaded hole (321) with corresponding thread matching, and the second guide rod (91) is slidably inserted in the second guide hole (322).

6. A mold changing device for stainless steel pipe production according to claim 5, characterized in that: Each of the first threaded rod (8) and the second threaded rod (9) is fixedly fitted with a screwing component (01).

7. A mold changing device for stainless steel pipe production according to claim 6, characterized in that: The screwing part (01) is a hexagonal nut.

8. A mold changing device for stainless steel pipe production according to claim 2, characterized in that: One end of the bidirectional threaded rod (21) extends through to the outer side of the base (1) and is fitted with a rocker plate (22).

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