A pipe conveying assembly for a pipe stretching unit

Abstract

The present invention discloses a pipe conveying component of a pipe stretching machine group, which belongs to the field of pipe processing equipment and realizes that the pipe can be conveyed at the side of the equipment, completes the secondary stretching of the pipe, and shortens the length of the equipment. The pipe conveying component of the pipe stretching machine group of the present invention comprises a pipe feeding device, a first stretching machine, and a second stretching machine arranged side by side. The first stretching machine and the second stretching machine are provided with a pipe moving device and a pipe turning device. The pipe feeding device can convey the pipe to the pipe moving device of the first stretching machine, the pipe moving device can transfer the pipe to the pipe turning device, the pipe turning device can turn the pipe and then convey it for stretching. The first stretching machine is provided with a pipe transfer mechanism for conveying the pipe conveyed by the pipe turning device to the second stretching machine for secondary stretching.

Description

[Technical field]

[0001] The invention relates to the field of pipe processing equipment, and in particular to a pipe conveying component of a pipe stretching machine unit. [Background technology]

[0002] When producing long pipes, generally thick and short pipes are produced first to shorten the process of producing pipe blanks, and then a stretching machine is used to draw the pipe to produce thin and long pipes. The length of the pipe will be greatly extended. When producing coils, the drawn pipes can be coiled and stored, but when producing branches, they cannot be stored in this way. Therefore, the production length of the equipment is longer.

[0003] In the prior art, secondary stretching is generally used to draw the pipe. In this way, although the number of molds can be reduced and the pipe can be protected from breaking during the stretching process, the pipe production line will be longer and a larger space is required to accommodate the equipment. If the pipe can be conveyed on the side, the equipment for the two stretchings can be arranged side by side to shorten the equipment length. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and propose a pipe conveying assembly for a pipe stretching unit, so that the pipe can be conveyed at the side of the equipment, the secondary stretching of the pipe is completed, and the length of the equipment is shortened.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A tube conveying assembly of a tube stretching machine group comprises a tube feeding device, a first stretching machine and a second stretching machine arranged side by side, the first stretching machine and the second stretching machine are provided with a tube moving device and a tube turning device, the tube feeding device can convey the tube to the tube moving device of the first stretching machine, the tube moving device can transfer the tube to the tube turning device, the tube turning device can turn the tube and then convey it for stretching, and the first stretching machine is provided with a tube transfer mechanism for conveying the tube conveyed by the tube turning device to the second stretching machine for secondary stretching.

[0007] The pipe stretching machine unit of the present invention includes two stretching machines, which can perform secondary stretching on the pipe. The three devices are arranged side by side, which can reduce the length of the entire set of equipment and does not need to design a larger place to accommodate the equipment. The first stretching machine performs the first stretching, and the second stretching machine performs the second stretching. The pipe transmission between the first stretching machine and the second stretching machine is realized by a pipe transfer mechanism. The pipe transmission on the first stretching machine and the second stretching machine is realized by the cooperation of a pipe turning device and a pipe moving device. The pipe turning device and the pipe moving device on the first stretching machine can continuously transfer the pipe from the pipe feeding device to the pipe transfer mechanism, and then transfer it to the second stretching machine, so as to realize the feeding and transmission of the pipe on the side of the equipment.

[0008] Furthermore, the pipe moving device includes a pipe clamping mechanism for clamping the pipe and a driving mechanism for providing axial power to the pipe. The pipe moving device can move the pipe on the stretching machine, and the pipe clamping mechanism can clamp the pipe. After cooperating with the driving mechanism, the pipe can move smoothly without slipping, thereby improving work efficiency.

[0009] Furthermore, the driving mechanism includes a first roller and a first motor driving the first roller to rotate, and the pipe clamping mechanism includes a second roller, and the pipe is clamped between the first roller and the second roller during transmission. After the first roller and the second roller clamp the pipe, a large friction force is generated, so that during the rotation of the first roller, the pipe and the second roller can be pushed to move, thereby achieving smooth transmission of the pipe.

[0010] Furthermore, the tube turning device includes a turning plate and a second motor for driving the turning plate to rotate. The turning plate is provided with a core rod assembly capable of accommodating or moving the tube. The tube moves toward the tube turning device under the action of the tube moving device and is then accommodated by the core rod assembly. The turning plate is driven by the second motor to rotate with the core rod assembly. At the same time, the position of the tube also changes with the rotation of the turning plate. The tube feeding device can transfer the tube to the first stretching machine. The tube turning device can also transfer the tube to the tube transfer mechanism, thereby realizing the position of the tube on the stretching machine to facilitate the subsequent transfer of the tube between the first stretching machine and the second stretching machine.

[0011] Furthermore, the core rod assembly includes a sleeve and a core rod located in the sleeve, the pipe can be accommodated in the sleeve, and the core rod assembly also includes a driving member for driving the core rod to move. The pipe can gradually enter the sleeve during the transmission process, and when the flipping device rotates, the core rod located in the sleeve can rotate synchronously. After the flipping is completed, the driving member can drive the core rod to move, thereby continuing to transmit the pipe.

[0012] Furthermore, a centering mechanism is provided between the tube turning device and the tube moving device, and the centering mechanism is used to guide the tube into the sleeve. When the tube is conveyed on the tube moving device, it is located on the second roller. As the tube is conveyed, the distance between its end and the core rod assembly becomes closer and closer, and it is more likely to bend, making it difficult to align with the sleeve. By providing a centering mechanism, the tube can be guided to be conveyed into the sleeve, avoiding damage to the equipment caused by misalignment of the tube and the sleeve.

[0013] Furthermore, the first stretching machine and the second stretching machine are provided with a stretching die seat, and the tube turning device passes through the stretching die seat during the tube conveying process. When the driving member drives the core rod to move, it passes through the stretching die seat, thereby completing the primary stretching. During the transmission process, the tube passes through the stretching die seats of the first stretching machine and the second stretching machine in turn, completing the secondary stretching, and then a semi-finished tube can be obtained.

[0014] Furthermore, one end of the tube transfer mechanism is connected to the first stretching machine, and the other end is connected to the tube moving device of the second stretching machine, so that the tube processed by the first stretching machine can be transferred to the tube moving device of the second stretching machine to start the second transfer and stretching.

[0015] Furthermore, the second stretching machine is also provided with a tube storage rack on the side, and the tube storage rack is used to store the tubes after being transferred by the tube turning device. After the first stretching machine completes the stretching of the tube, the tube will fall onto the tube transfer mechanism, and the tube storage rack can catch the tube that has completed the secondary stretching, so as to collect the tubes for subsequent movement.

[0016] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0017] The present invention will be further described below in conjunction with the accompanying drawings:

[0018] Figure 1 It is a structural schematic diagram of a pipe stretching unit in an embodiment of the present invention;

[0019] Figure 2 It is a structural schematic diagram of a stretching machine in an embodiment of the present invention;

[0020] Figure 3 It is a side view of the pipe stretching unit in the embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the chain belt in an embodiment of the present invention;

[0022] Figure 5 for Figure 3The enlarged schematic diagram of point A in the middle;

[0023] Figure 6 for Figure 3 A magnified schematic diagram of point B in the middle.

[0024] Reference numerals:

[0025] A pipe feeding device 100, a first stretching machine 200, and a second stretching machine 300;

[0026] The pipe moving device 400, the pipe clamping mechanism 410, the first roller 421, the first motor 422, the driving mechanism 420, the second roller 411, and the lifting cylinder 412;

[0027] The tube turning device 500, the turning plate 510, the second motor 520, the sleeve 531, and the core rod 532;

[0028] Tube transfer mechanism 600, chain belt 610, tube transfer plate 620, object carrier 630;

[0029] Stretching die seat 700, pipe material storage rack 800, centering mechanism 900. [Specific implementation method]

[0030] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] Embodiment 1

[0036] Reference Figures 1 to 6 The present invention provides a tube conveying assembly of a tube stretching machine group, comprising a tube feeding device 100, a first stretching machine 200, and a second stretching machine 300 arranged side by side, wherein the first stretching machine 200 and the second stretching machine 300 are provided with a tube moving device 400 and a tube turning device 500, wherein the tube feeding device 100 can convey the tube to the tube moving device 400 of the first stretching machine 200, the tube moving device 400 can transfer the tube to the tube turning device 500, the tube turning device 500 can turn the tube and then convey it for stretching, and the first stretching machine 200 is provided with a tube transfer mechanism 600 for conveying the tube conveyed by the tube turning device 500 to the second stretching machine 300 for secondary stretching.

[0037] The pipe stretching machine group of the present invention includes two stretching machines, which are arranged side by side with the pipe feeding device 100, so as to reduce the length of the whole set of equipment and do not need to design a larger place to accommodate the equipment;

[0038] Reference Figure 5 In addition, the equipment can perform secondary stretching on the pipe, the first stretching machine 200 performs the first stretching, and the second stretching machine 300 performs the second stretching, wherein the first stretching machine 200 and the second stretching machine 300 are provided with a stretching die seat 700, and the pipe will pass through the stretching die seat 700 during the transmission process to complete the drawing.

[0039] The tube feeding device 100 can feed the tube moving device 400 on the first stretching machine 200 from the side. The tube moving device 400 can transfer the tube on the stretching machine to the tube turning device 500. The tube turning device 500 can change the position of the tube after turning the tube. Subsequently, in the process of transferring the tube to the tube transfer mechanism 600, the drawing of the tube is completed. Then, the tube transfer mechanism 600 can be used to transfer the tube from the first stretching machine 200 to the second stretching machine 300 in the side direction.

[0040] Reference Figure 1 , wherein one end of the tube transfer mechanism 600 is connected to the first stretching machine 200, and the other end is connected to the tube moving device 400 of the second stretching machine 300, so that the tube processed by the first stretching machine 200 can be transferred to the tube moving device 400 of the second stretching machine 300 to start the second transmission and stretching.

[0041] Reference Figure 4 The tube transfer mechanism 600 includes chain belts 610 arranged at intervals, and tube conveying plates 620 are provided between the chain belts 610. After the drawing is completed, the tube will fall on the tube conveying plate 620. A plurality of carriers 630 are provided on the chain belt 610. The plurality of carriers 630 can move with the transmission of the chain belt 610. After contacting the tube on the tube conveying plate 620, the tube can be kept between the carriers 630 and the chain belt 610, and finally can be transmitted to the tube transfer mechanism 600 of the second stretching machine 300 along with the chain belt 610.

[0042] The chain belt 610 is provided with a sensor (not shown in the figure) which can sense whether the chain belt 610 is full of pipes. When the chain belt 610 can no longer carry pipes, the pipe feeding device 100 will stop feeding to the first stretching machine 200 until there is a vacant space on the chain belt 610.

[0043] In addition, a tube storage rack 800 is further provided on the side of the second stretching machine 300, and the tube storage rack 800 is used to store the tubes after being transferred by the tube turning device 500. A tube transfer mechanism 600 is provided at the same position of the first stretching machine 200, and a tube conveying plate 620 is also provided at the same position of the second stretching machine 300. After the drawing is completed, the tube will fall on the tube conveying plate 620. There is a slope on the tube conveying plate 620. When it is on the first stretching machine 200, it can guide the movement of the tube and fit with the surface of the chain belt 610, so that the carrier 630 can more easily carry the tube and move synchronously. On the second stretching machine 300, the tube can slide along the slope into the tube storage rack 800 to complete the collection of the tube, so as to facilitate the subsequent movement of the tube.

[0044] Embodiment 2

[0045] This embodiment specifically describes the specific structure of the pipe moving device 400. Specifically, refer to Figure 2 and 5 The pipe moving device 400 includes a pipe clamping mechanism 410 for clamping the pipe, a driving mechanism 420 for providing axial power to the pipe, the driving mechanism 420 includes a first roller 421 and a first motor 422 for driving the first roller 421 to rotate, and the pipe clamping mechanism 410 includes a second roller 411 and a lifting cylinder 412 for controlling the lifting of the second roller 411.

[0046] When conveying pipes, the lifting cylinder 412 controls the second roller 411 to descend and clamp the pipe between the second roller 411 and the first roller 421. There is friction between the pipe and the second roller 411 and the first roller 421. As the first motor 422 drives the first roller 421, the first roller 421 starts to rotate. The friction between the two pushes the pipe to move and drives the second roller 411 to roll at the same time, so that the pipe moves smoothly without slipping, thereby improving work efficiency.

[0047] Embodiment 3

[0048] This embodiment specifically describes the specific structure of the tube turning device 500. Specifically, refer to Figure 5 and 6 The tube turning device 500 includes a turning disk 510 and a second motor 520 for driving the turning disk 510 to rotate. The turning disk 510 is provided with a core rod assembly capable of accommodating or moving the tube. The core rod assembly includes a sleeve 531 and a core rod 532 located in the sleeve 531. The tube can be accommodated in the sleeve 531. The core rod assembly also includes a driving member (not shown in the figure) for driving the core rod 532 to move.

[0049] Among them, two groups of core rod assemblies are provided on the flip plate 510, and the second motor 520 can control the flip plate 510 to rotate 180°, so that the two groups of core rod assemblies are flipped up and down; the driving part is a cylinder, and the core rod 532 can be pushed by the pipe or controlled to move by the cylinder.

[0050] During the transmission process, the tube moves toward the tube turning device 500 under the action of the tube moving device 400, and is then accommodated by the sleeve 531 and gradually enters into the sleeve 531. Driven by the second motor 520, the turning disk 510 rotates with the core rod assembly. At the same time, the position of the tube also changes with the rotation of the turning disk 510. The tube feeding device 100 can transfer the tube to the first stretching machine 200, and the core rod assembly located below also starts to operate. The driving member controls the movement of the core rod 532 to push the tube to move. As the tube gradually moves, the drawing of the tube is completed.

[0051] Embodiment 4

[0052] Reference Figure 5 This embodiment proposes a centering mechanism 900 , which is located between the tube turning device 500 and the tube moving device 400 and can guide the tube to enter the sleeve 531 .

[0053] When the pipe is being conveyed on the pipe moving device 400, it is located on the second roller 411. As the pipe is being conveyed, the distance between its end and the core rod assembly becomes closer and closer, making it more prone to bending and difficult to align with the sleeve 531. By providing a centering mechanism 900, the pipe can be guided to be conveyed into the sleeve 531, thereby avoiding damage to the equipment caused by misalignment of the pipe and the sleeve 531.

[0054] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A pipe conveying assembly of a pipe stretching unit, characterized in that: The invention comprises a pipe feeding device, a first stretching machine and a second stretching machine arranged side by side, wherein the first stretching machine and the second stretching machine are provided with a pipe moving device and a pipe turning device, wherein the pipe feeding device can transfer the pipe to the pipe moving device of the first stretching machine, the pipe moving device can transfer the pipe to the pipe turning device, the pipe turning device can turn the pipe and then transfer it for stretching, and the first stretching machine is provided with a pipe transfer mechanism for transferring the pipe after passing through the pipe turning device to the second stretching machine for secondary stretching; one end of the pipe transfer mechanism is connected to the pipe The first stretching machine is connected to the first end, and the other end is connected to the tube moving device of the second stretching machine. The tube transfer mechanism includes chain belts arranged at intervals, tube conveying plates are arranged between the chain belts, and there is an inclined surface on the tube conveying plate. A plurality of carriers are arranged on the chain belt. The plurality of carriers can move with the transmission of the chain belt, and can keep the tubes between the carriers and the chain belt after contacting the tubes on the tube conveying plate. A sensor is arranged on the chain belt, which can sense whether the chain belt is full of tubes. When the chain belt can no longer carry the tubes, the tube feeding device will stop feeding to the first stretching machine until there is a vacancy on the chain belt.

2. The pipe conveying assembly of the pipe stretching unit according to claim 1, characterized in that: The pipe moving device comprises a pipe clamping mechanism for clamping the pipe and a driving mechanism for providing axial power for the pipe.

3. The pipe conveying assembly of the pipe stretching unit according to claim 2, characterized in that: The driving mechanism includes a first roller and a first motor driving the first roller to rotate, and the pipe clamping mechanism includes a second roller. During transmission, the pipe is clamped between the first roller and the second roller.

4. The pipe conveying assembly of the pipe stretching unit according to claim 1, characterized in that: The tube turning device comprises a turning plate and a second motor driving the turning plate to rotate. The turning plate is provided with a core rod assembly capable of accommodating or moving the tube.

5. The pipe conveying assembly of the pipe stretching unit according to claim 4, characterized in that: The core rod assembly comprises a sleeve and a core rod located in the sleeve, the tube can be accommodated in the sleeve, and the core rod assembly further comprises a driving member for driving the core rod to move.

6. The pipe conveying assembly of the pipe stretching unit according to claim 5, characterized in that: A centering mechanism is provided between the tube turning device and the tube moving device, and the centering mechanism is used to guide the tube to enter the sleeve.

7. A pipe conveying assembly of a pipe stretching unit according to any one of claims 1 to 6, characterized in that: The first stretching machine and the second stretching machine are provided with a stretching die seat, and the tube passing through the stretching die seat during the tube transfer process of the tube turning device.

8. The pipe conveying assembly of the pipe stretching unit according to any one of claims 1 to 6, characterized in that: A pipe storage rack is also provided on the side of the second stretching machine, and the pipe storage rack is used to store the pipes after being conveyed by the pipe turning device.

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