Practical vertical type two-wheel taper pipe squaring machine

Abstract

The utility model provides a practical vertical two-wheel taper pipe squaring machine, which relates to the technical field of processing equipment, and is provided with two corresponding squaring rotating wheels, a gap between the two squaring rotating wheels forms a forming hole for cold rolling deformation of a pipe, and one side of the forming hole in the discharging direction is provided with a length limiting component; the length limiting assembly comprises a limiting seat; the limiting base corresponds to the forming hole in position, after a pipe needing to be formed is inserted into the forming hole, the two squaring rotating wheels rotate, and the pipe enters from the feeding position of the forming hole and then is output from the discharging position of the forming hole. The device has the advantages that the square pulling rotating wheel and the length limiting assembly are arranged, the square pulling rotating wheel rotates reversely to withdraw the pipe formed through stretching after the pipe is stretched by the square pulling rotating wheel, the mechanism is simple, therefore, the device cost is low, only the square pulling rotating wheel needs to be replaced in each time of model changing, operation is easy, and production efficiency is high. And the method is suitable for small-batch multi-model pipe production and processing.

Description

Technical Field

[0001] The utility model relates to the technical field of processing equipment, in particular to a practical vertical two-wheel tapered tube square drawing machine. Background Art

[0002] Pipes are materials used in many industries. According to the actual production and application requirements, the cross-sectional shapes of pipes are manufactured into various shapes, including round, square, fan-shaped, etc. Most of these shapes are made by cold processing the tube blank using a mold. The tube blank is pulled through the set mold and extruded and stretched using the mold.

[0003] The technical details disclosed in the Chinese patent document (Publication No.: CN109226267A, Patent Title: A Rolling Method for Converting Round Tubes to Square Tubes and Its Pass Structure) are as follows: 1) A round tube billet is fed into a horizontal diamond-shaped flat roll pass in a vertical diamond-shaped configuration; 2) The horizontal diamond-shaped tube billet is then fed into a vertical diamond-shaped vertical roll pass; 3) Steps 1) and 2) are repeated, gradually reducing the difference in the diamond diagonals until the difference is zero, resulting in a square tube. This method converts round tubes to square tubes by allowing a large pass to "swallow" a small tube. This method not only reduces pass wear and deformation resistance, but also produces tubes with high surface quality, long roller life, and low power consumption.

[0004] From the above implementation scheme, it can be seen that the structure needs to use multiple diamond-shaped vertical rollers to press the round tube. The round tube can only enter from one end of the mechanism and be output from the other end. This can only be arranged in a long linear production line, which is not conducive to the processing and production of short pipes. Therefore, the cost of the entire mechanism is high and the cost is expensive, which is not suitable for small-batch production and processing. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and is provided with a pulling wheel and a length limiting component. After the pipe is stretched by the pulling wheel, it reaches the length limiting component, and the pulling wheel is reversed to remove the stretched and formed pipe. The structure is simple, so the equipment cost is low, and each time the model is changed, only the pulling wheel needs to be replaced. The operation is simple and it is suitable for the production and processing of small batches and multiple models of pipes.

[0006] In order to solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] A practical vertical two-wheel conical tube square drawing machine is provided with two corresponding square drawing wheels. The gap between the two square drawing wheels forms a forming hole for cold rolling and deforming the tube. A length limiting component is provided on one side of the forming hole in the discharge direction.

[0008] The length limiting assembly includes a limiting seat; the limiting seat corresponds to the position of the forming hole. After the pipe to be formed is inserted into the forming hole, the two pulling wheels rotate, and the pipe enters from the inlet of the forming hole and is output from the outlet of the forming hole. When the pipe hits the limiting seat, the two pulling wheels rotate in opposite directions to push the pipe in the opposite direction of its movement; the pipe enters the forming hole until one end of the pipe hits the limiting seat and is pressed and formed by the pulling wheels.

[0009] Furthermore, the pull-square runner is provided with a pull-square groove rail, which is arranged around the circumference of the pull-square runner, and the length of the pull-square groove rail is greater than three-quarters of the circumference of the pull-square runner and less than the circumference of the pull-square runner;

[0010] The two ends of the square groove rail are respectively provided with a circular entrance and a deformed exit;

[0011] The circumferences of the circular inlets of the two Lafang runners are equal to the deformed outlets of the two Lafang runners;

[0012] Or, the circumference of the circular inlets of the two Rafang runners is smaller than the deformed outlets of the two Rafang runners;

[0013] Alternatively, the circumferences of the circular inlets of the two Rafang runners are greater than the circumferences of the deformed outlets of the two Rafang runners.

[0014] Furthermore, the length limiting component includes a polygonal connecting rod, and the limiting seat is slidably connected to the polygonal connecting rod.

[0015] Furthermore, the limiting seat includes a position adjustment seat, which is connected to the first sensor and the sensing slide rod. The sensing slide rod is plugged with a spring, and the sensing slide rod is slidably connected to the sensing sheet. The spring is located between the position adjustment seat and the sensing sheet.

[0016] Furthermore, a polygonal sliding hole is provided at one end of the position adjustment seat, a positioning threaded hole is provided on one side of the polygonal sliding hole, the polygonal sliding hole is slidably connected with the polygonal connecting rod, and one end of the bolt passes through the positioning threaded hole and presses against the polygonal connecting rod.

[0017] Furthermore, the pull-out wheel is connected to a transmission mechanism, which includes a first transmission shaft and a second transmission shaft arranged in parallel. The first transmission shaft and the second transmission shaft are respectively connected to the two pull-out wheels.

[0018] Furthermore, the end of the first transmission shaft away from the pull-out wheel is connected to the material-returning sensing assembly, which includes a rotating end cover and a second sensor. The rotating end cover is connected to a rotating rod, and a rotating piece is provided at the end of the rotating rod away from the rotating end cover. The second sensor is connected to the side of the transmission mechanism. When the rotating end cover rotates one circle, the rotating piece passes by the front end of the second sensor once.

[0019] The rotating end cover is threadedly connected with a fixing connecting bolt.

[0020] Furthermore, a bracket is provided on a side of the pull-square rotating wheel away from the length limiting component, the bracket including a bracket base plate, the bracket base plate being provided with a height adjustment long hole, the height adjustment long hole being connected to a transverse adjustment screw, the transverse adjustment screw being connected to a fixing screw and a positioning screw;

[0021] The transverse adjustment screw is connected to the lifting mechanism, and the lifting mechanism includes an angle seat and a connecting piece fixed to the bottom of the angle seat.

[0022] Furthermore, the transmission mechanism is connected to the linkage assembly, the linkage assembly includes a first gear and a second gear, the first gear is connected to the first transmission shaft, the second gear is connected to the second transmission shaft, the first gear is meshed with the second gear, and the second transmission shaft is connected to the drive assembly.

[0023] Furthermore, the drive assembly includes a motor, the motor is connected to a belt, the belt is connected to a reduction gearbox, the reduction gearbox is connected to a coupling, and the second transmission shaft is connected to the coupling.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] 1. A pulling wheel and a length limiting component are set. After the pipe is stretched by the pulling wheel, it reaches the length limiting component. The pulling wheel will reverse and the stretched pipe will be ejected. The structure is simple, so the equipment cost is low. Moreover, only the pulling wheel needs to be replaced each time the model is changed. The operation is simple and suitable for the production and processing of small batches and multiple models of pipes.

[0026] 2. The square drawing wheel is provided with a square drawing groove rail, which is arranged around the circumferential direction of the square drawing wheel. A circular inlet and a deformation outlet are respectively provided at both ends of the square drawing groove rail; the shape of the square drawing groove rail changes gradually from the circular inlet to the deformation outlet, and the pipe enters from the circular inlet. After the square drawing wheel rotates one circle, the pipe is pressed from a circle to a set shape. The shape of the pipe pressing can be set by setting the size from the circular inlet to the deformation outlet. The pipe can be pressed into finished products with different sizes and shapes at both ends, or it can be pressed into finished products with the same size but different shapes at both ends, or it can be pressed into finished products with the same size and the same shape at both ends, and it can be pressed into finished products with different sizes and the same shape at both ends. Therefore, the square drawing machine has a wide adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the utility model and, together with the embodiments of the utility model, to explain the utility model, but do not constitute a limitation of the utility model. In the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the first structure of the square drawing machine according to an embodiment of the present utility model;

[0029] Figure 2 This is a second structural diagram of the square drawing machine according to an embodiment of the present utility model;

[0030] Figure 3 This is an exploded view of a square drawing machine according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic structural diagram of the linkage assembly, transmission mechanism, and material return sensing assembly of an embodiment of the utility model;

[0032] Figure 5 This is an exploded schematic diagram of a length limiting assembly according to an embodiment of the present invention;

[0033] Figure 6 This is an exploded schematic diagram of a bracket according to an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the first structure of the pull-square runner in an embodiment of the present utility model;

[0035] Figure 8 This is a second structural diagram of the pull-square wheel according to an embodiment of the present utility model.

[0036] In the figure: 1. Drive assembly; 101. Motor; 102. Belt; 103. Reducer; 104. Coupling; 2. Linkage assembly; 201. First gear; 202. Second gear; 3. Transmission mechanism; 301. First transmission shaft; 302. Second transmission shaft; 4. Limit assembly; 5. Bracket; 501. Bracket base plate; 5011. Height adjustment slot; 502. Lateral adjustment bolt; 5021. Fixing nut; 5022. Fixing screw; 5023. Positioning screw; 503. Lifting mechanism; 5031. Angle seat; 503 2. Connecting piece; 6. Length limiting assembly; 601. Polygonal connecting rod; 602. Position adjustment seat; 6021. Polygonal sliding hole; 6022. Positioning threaded hole; 603. First sensor; 604. Sensing slide rod; 605. Spring; 606. Sensing piece; 7. Material return sensing assembly; 701. Rotating end cover; 7011. Rotating rod; 7012. Rotating piece; 702. Fixed connecting bolt; 703. Second sensor; 8. Pulling wheel; 801. Pulling groove rail; 8011. Deformation outlet; 8012. Circular entrance. DETAILED DESCRIPTION

[0037] The preferred embodiments of the utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model and are not used to limit the utility model.

[0038] like Figures 1 to 8As shown, a practical vertical two-wheel conical tube square drawing machine is provided with two corresponding square drawing wheels 8. The gap between the two square drawing wheels 8 forms a forming hole for cold rolling and deforming the tube. A length limiting component 6 is provided on one side of the forming hole in the discharge direction.

[0039] The length limiting assembly 6 includes a limiting seat; the limiting seat corresponds to the position of the forming hole. After the pipe to be formed is inserted into the forming hole, the two pulling wheels 8 rotate, and the pipe enters from the inlet of the forming hole and is output from the outlet of the forming hole. When the pipe rests against the limiting seat, the two pulling wheels 8 rotate in opposite directions to push the pipe in the opposite direction of the pipe; the pipe enters the forming hole until one end of the pipe rests against the limiting seat and is pressed and formed by the pulling wheels 8. The length limiting assembly 6 includes a polygonal connecting rod 601, and the limiting seat is slidably connected to the polygonal connecting rod 601. The limiting seat includes a position adjustment seat 602, which is connected to a first sensor 603 and a sensing slide 604. In this embodiment, the first sensor 603 is a proximity switch, a proximity sensor, or an infrared sensor. The sensing slide 604 is plugged with a spring 605, and the sensing slide 604 is slidably connected to a sensing sheet 606. The spring 605 is located between the position adjustment seat 602 and the sensing sheet 606. Therefore, when the pipe is against the sensing sheet 606, the sensing sheet 606 will be pushed by the pipe to squeeze the spring 605, so that the spring 605 is compressed, and the sensing The sheet 606 approaches the first sensor 603, and the first sensor 603 senses the sensing sheet 606, and then the two square pulleys 8 start to rotate in the opposite direction to push the pipe in the opposite direction until the pipe is completely pushed out of the square puller. The length limiting component 6 enables the square puller to accurately control the pressing length of the pipe to prevent the square pulley 8 from excessively pressing the pipe and damaging the structure of the rear end of the pipe. This mechanism is suitable for processing pipes with a smaller deformation length, and each time the model is changed, only the square pulley 8 needs to be replaced. It is simple to operate and suitable for small-batch and multi-model pipe production and processing.

[0040] One end of the position adjustment seat 602 of the length limiting component 6 is provided with a polygonal sliding hole 6021, and a positioning threaded hole 6022 is provided on one side of the polygonal sliding hole 6021. The polygonal sliding hole 6021 is slidably plugged into the polygonal connecting rod 601, so the position adjustment seat 602 will not rotate relative to the polygonal connecting rod 601, ensuring the stability of the connection between the two. When the bolt passing through the positioning threaded hole 6022 presses against the polygonal connecting rod 601, the limiting seat cannot move on the polygonal connecting rod 601. When the bolt is loosened so that the bolt passing through the positioning threaded hole 6022 no longer presses against the polygonal connecting rod 601, the limiting seat can move on the polygonal connecting rod 601. Therefore, the position of the limiting seat can be adjusted according to the length of the pipe to be pressed, thereby limiting the pressing length of the pipe, improving the flexibility of the square drawing machine, and enabling the square drawing machine to more accurately control the length of the pipe pressed.

[0041] The pulling wheel 8 is provided with a pulling groove rail 801, which is arranged around the circumferential direction of the pulling wheel 8. The length of the pulling groove rail 801 is greater than three-quarters of the circumference of the pulling wheel 8 but less than the circumference of the pulling wheel 8; a circular entrance 8012 and a deformation outlet 8011 are respectively provided at both ends of the pulling groove rail 801; the shape of the pulling groove rail 801 gradually changes from the circular entrance 8012 to the deformation outlet 8011, and the pipe enters from the circular entrance 8012. After the pulling wheel rotates one circle, the pipe is pressed from a circle to a set shape.

[0042] When the circumference of the circular inlet 8012 of the two pulling wheels 8 is equal to the deformed outlet 8011 of the two pulling wheels 8, the two ends of the pressed pipe are required to be the same size, and the cross-section of the pipe is gradually pressed from a circle to another shape, which can be a square or fan shape, etc.

[0043] When the circumference of the circular inlet 8012 of the two square-pulling wheels 8 is smaller than the deformed outlet 8011 of the two square-pulling wheels 8, it can be used to press a truncated cone-shaped pipe with one end larger than the other end.

[0044] When the circumference of the circular inlet 8012 of the two pulling wheels 8 is greater than the deformation outlet 8011 of the two pulling wheels 8, it can be used to press the pipe whose one end needs to keep the original state and the other end needs to be deformed.

[0045] Therefore, the square drawing machine of the present invention can press the pipe from a round shape into a set shape, and the shape of the pipe can be set by setting the size from the circular inlet 8012 to the deformation outlet 8011. The pipe can be pressed into a finished product with different sizes and shapes at both ends, or the pipe can be pressed into a finished product with the same size but different shapes at both ends, or the pipe can be pressed into a finished product with the same size and the same shape at both ends, and the pipe can be pressed into a finished product with different sizes and the same shape at both ends. Therefore, the square drawing machine has a wide adaptability.

[0046] The pull-out wheel 8 is connected to the transmission mechanism 3, which includes a first transmission shaft 301 and a second transmission shaft 302 arranged in parallel. The first transmission shaft 301 and the second transmission shaft 302 are respectively connected to the two pull-out wheels 8. The end of the first transmission shaft 301 away from the pull-out wheel 8 is connected to the material withdrawal sensing assembly 7, which includes a rotating end cap 701 and a second sensor 703. The rotating end cap 701 is connected to a rotating rod 7011. The end of the rotating rod 7011 away from the rotating end cap 701 is provided with a rotating piece 7012. The second sensor 703 is connected to the side of the transmission mechanism 3. When the rotating end cap 701 rotates one circle, the rotating piece 7012 passes the front end of the second sensor 703 once. In this embodiment, the second sensor 703 is a proximity sensor. After the tube is pressed and withdrawn, the length of the tube withdrawn can be calculated by sensing the number of times the rotating piece 7012 passes by the second sensor 703. When the tube is completely withdrawn, the pull-out wheel 8 can stop rotating.

[0047] A fixed connecting bolt 702 is threadedly connected to the rotating end cover 701. The fixed connecting bolt 702 prevents the rotating end cover 701 from moving in the length direction of the first transmission shaft 301 by pressing against the first transmission shaft 301. The position of the rotating end cover 701 on the first transmission shaft 301 can also be adjusted so that the rotating piece 7012 can correspond to the second sensor 703.

[0048] A bracket 5 is provided on the side of the pulling wheel 8 away from the length limiting component 6, and the bracket 5 includes a bracket base plate 501, and the bracket base plate 501 is provided with a height adjustment long hole 5011, and the height adjustment long hole 5011 is connected to the transverse adjustment screw 502, and the transverse adjustment screw 502 is connected to the fixing screw 5021 and the positioning screw 5023; the transverse adjustment screw 502 is connected to the lifting mechanism 503, and the lifting mechanism 503 includes an angle seat 5031 and a connecting piece 5032 fixed to the bottom of the angle seat 5031. Therefore, by adjusting the height of the lifting mechanism 503 and the distance between the lifting mechanism 503 and the bracket base plate 501, when the pipe is placed above the lifting mechanism 503, the axis of the pipe can correspond to the forming hole, ensuring that the pipe can smoothly enter the forming hole, thereby ensuring the quality of the finished product of the pipe pulling.

[0049] The transmission mechanism 3 is connected to the linkage assembly 2, and the linkage assembly 2 includes a first gear 201 and a second gear 202. The first gear 201 is connected to the first transmission shaft 301, and the second gear 202 is connected to the second transmission shaft 302. The first gear 201 and the second gear 202 are meshed and connected, and the second transmission shaft 302 is connected to the driving assembly 1. The driving assembly 1 includes a motor 101, the motor 101 is connected to the belt 102, the belt 102 is connected to the reduction box 103, the reduction box 103 is connected to the coupling 104, and the second transmission shaft 302 is connected to the coupling 104. Therefore, the motor 101 finally drives the second gear 202 to rotate through transmission, and the second gear 202 drives the first gear 201 to rotate, thereby finally realizing the synchronous rotation of the two pulling square wheels 8, so that during the process of the pulling square groove rail 801 pressing the pipe, the outer periphery of the pipe is evenly stressed, ensuring the stability of the pipe production quality.

[0050] Finally, it should be noted that the above are only preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A practical vertical two-wheel tapered tube square drawing machine, characterized in that: Two corresponding square-drawing wheels (8) are provided, and the gaps between the two square-drawing wheels (8) form a forming hole for cold-rolling and deforming the pipe, and a length limiting component (6) is provided on one side of the forming hole in the discharge direction; The length limiting assembly (6) includes a limiting seat; the limiting seat corresponds to the position of the forming hole. After the pipe to be formed is inserted into the forming hole, the two pulling wheels (8) rotate, and the pipe enters from the inlet of the forming hole and is output from the outlet of the forming hole. When the pipe abuts the limiting seat, the two pulling wheels (8) rotate in the opposite direction to push the pipe in the opposite direction of the pipe; the pipe enters the forming hole until one end of the pipe abuts the limiting seat and is pressed and formed by the pulling wheels (8).

2. The practical vertical two-wheel tapered tube square drawing machine according to claim 1, characterized in that: The pull-square rotating wheel (8) is provided with a pull-square groove rail (801), which is arranged around the circumference of the pull-square rotating wheel (8), and the length of the pull-square groove rail (801) is greater than three-quarters of the circumference of the pull-square rotating wheel (8) but less than the circumference of the pull-square rotating wheel (8); The two ends of the square groove rail (801) are respectively provided with a circular entrance (8012) and a deformable exit (8011); The circumference of the circular entrances (8012) of the two pull-square wheels (8) is equal to the deformation outlets (8011) of the two pull-square wheels (8); or, the circumference of the circular entrances (8012) of the two pull-square wheels (8) is smaller than the deformation outlets (8011) of the two pull-square wheels (8); or, the circumference of the circular entrances (8012) of the two pull-square wheels (8) is greater than the deformation outlets (8011) of the two pull-square wheels (8).

3. The practical vertical two-wheel tapered tube square drawing machine according to claim 1, characterized in that: The length limiting assembly (6) comprises a polygonal connecting rod (601), and the limiting seat is slidably connected to the polygonal connecting rod (601).

4. The practical vertical two-wheel tapered tube square drawing machine according to claim 3, characterized in that: The limiting seat includes a position adjustment seat (602), the position adjustment seat (602) is connected to the first sensor (603) and the sensing slide bar (604), the sensing slide bar (604) is plugged with a spring (605), the sensing slide bar (604) is slidably connected to the sensing sheet (606), and the spring (605) is located between the position adjustment seat (602) and the sensing sheet (606).

5. The practical vertical two-wheel tapered tube square drawing machine according to claim 4, characterized in that: A polygonal sliding hole (6021) is provided at one end of the position adjustment seat (602), a positioning threaded hole (6022) is provided on one side of the polygonal sliding hole (6021), the polygonal sliding hole (6021) is slidably plugged into the polygonal connecting rod (601), and one end of the bolt passes through the positioning threaded hole (6022) and abuts against the polygonal connecting rod (601).

6. The practical vertical two-wheel tapered tube square drawing machine according to any one of claims 1 to 5, characterized in that: The pull-out wheel (8) is connected to a transmission mechanism (3), which includes a first transmission shaft (301) and a second transmission shaft (302) arranged in parallel. The first transmission shaft (301) and the second transmission shaft (302) are respectively connected to the two pull-out wheels (8).

7. The practical vertical two-wheel tapered tube square drawing machine according to claim 6, characterized in that: The end of the first transmission shaft (301) away from the pull-out wheel (8) is connected to the material-returning induction assembly (7), and the material-returning induction assembly (7) includes a rotating end cover (701) and a second sensor (703). The rotating end cover (701) is connected to a rotating rod (7011), and a rotating piece (7012) is provided at the end of the rotating rod (7011) away from the rotating end cover (701). The second sensor (703) is connected to the side of the transmission mechanism (3). When the rotating end cover (701) rotates one circle, the rotating piece (7012) passes through the front end of the second sensor (703) once. The rotating end cover (701) is threadedly connected with a fixing bolt (702).

8. The practical vertical two-wheel tapered tube square drawing machine according to claim 7, characterized in that: A bracket (5) is provided on the side of the pulling wheel (8) away from the length limiting component (6), and the bracket (5) includes a bracket base plate (501), and the bracket base plate (501) is provided with a height adjustment long hole (5011), the height adjustment long hole (5011) is connected to the transverse adjustment screw (502), and the transverse adjustment screw (502) is connected to the fixing screw (5021) and the positioning screw (5023); The transverse adjustment screw (502) is connected to a lifting mechanism (503), and the lifting mechanism (503) includes an angle seat (5031) and a connecting piece (5032) fixed to the bottom of the angle seat (5031).

9. The practical vertical two-wheel tapered tube square drawing machine according to claim 8, characterized in that: The transmission mechanism (3) is connected to a linkage assembly (2); the linkage assembly (2) comprises a first gear (201) and a second gear (202); the first gear (201) is connected to a first transmission shaft (301); the second gear (202) is connected to a second transmission shaft (302); the first gear (201) and the second gear (202) are meshed and connected; and the second transmission shaft (302) is connected to the drive assembly (1).

10. The practical vertical two-wheel tapered tube square drawing machine according to claim 9, characterized in that: The drive assembly (1) comprises a motor (101), the motor (101) is connected to a belt (102), the belt (102) is connected to a reduction box (103), the reduction box (103) is connected to a coupling (104), and a second transmission shaft (302) is connected to the coupling (104).

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