Pipe ellipse correcting device

Abstract

The utility model discloses a pipe ellipse correcting device which comprises a vacuum box and two correcting parts, one end of the vacuum box is provided with an inlet suitable for entering of pipes, and the other end of the vacuum box is provided with an outlet suitable for exiting of the pipes. The correction parts comprise shaping boxes, and the shaping boxes of the two correction parts are symmetrically mounted outside the two sides of one end of the vacuum box and are arranged close to the inlet; the shaping rolling wheel is arranged in the vacuum box; the guide rods are arranged in the corresponding shaping boxes, and one ends of the guide rods are connected with the corresponding shaping rollers; and the transmission mechanisms are installed in the corresponding shaping boxes, the transmission mechanisms are connected with the other ends of the corresponding guide rods, and the transmission mechanisms are suitable for driving the corresponding shaping rollers to move in the vacuum box through the guide rods. The ellipse correction device can realize ellipse correction in pipe production, is convenient to operate, and improves the product quality.

Description

Technical Field

[0001] The utility model relates to a pipe ellipse correction device, belonging to the technical field of pipe production. Background Art

[0002] At present, all kinds of pipe production lines widely need to use elliptical correction so that the pipes can meet the specified size and material standards. In the production process of large pipes, the pipes may be affected by gravity and produce natural droop, so correction is required.

[0003] After searching the prior art, it was found that a Chinese patent with publication number CN211031202U disclosed an ellipse correction device for PE large-diameter thermal insulation pipes. In the patent, horizontal correction plates and vertical correction plates are used to correct the pipes. It is mostly used for PP and PE pipes during use. When used for PVC pipes, since PVC pipes cool and form quickly, the effect is often not good when used for correction in the later stage. In addition, when different sizes need to be changed, the corresponding vertical correction plates need to be replaced, which causes certain inconveniences during use. Summary of the invention

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a pipe ellipse correction device, which can realize ellipse correction in pipe production and is convenient to operate, thereby improving product quality.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a pipe ellipse correction device, comprising:

[0006] A vacuum box, wherein one end of the vacuum box is provided with an inlet suitable for the pipe to enter, and the other end is provided with an outlet suitable for the pipe to exit;

[0007] Two correction components, the correction components include:

[0008] A shaping box, wherein the shaping boxes of the two correction components are symmetrically mounted outside the two sides of one end of the vacuum box and are arranged close to the inlet position;

[0009] A shaping roller, wherein the shaping roller is arranged in the vacuum box;

[0010] A guide rod, wherein the guide rod is arranged in the corresponding shaping box, and one end of the guide rod is connected to the corresponding shaping roller;

[0011] A transmission mechanism, the transmission mechanism is installed in the corresponding shaping box, and the transmission mechanism is connected to the other end of the corresponding guide rod;

[0012] The transmission mechanism is suitable for driving the corresponding shaping rollers to move in the vacuum box through the guide rods to change the spacing between the shaping rollers of the two correction components in the vacuum box.

[0013] Furthermore, in order to effectively cool and achieve non-stop cleaning, the pipe ellipse correction device also includes a circulating water spray component, and the circulating water spray component includes:

[0014] A circulating water pipeline, wherein the circulating water pipeline is installed on the vacuum box;

[0015] A circulating pump, wherein the circulating pump is suitable for driving cooling water to flow in a circulating water pipeline;

[0016] A spray assembly, the spray assembly is installed in the vacuum box, and the spray assembly is connected to the circulating water pipeline;

[0017] The circulating water pipeline is provided with at least two paths, and the multiple circulating water pipelines are arranged in parallel.

[0018] Further, in order to achieve position adjustment of the tube ellipse correction device, the tube ellipse correction device also includes a position adjustment component, and the position adjustment component includes:

[0019] Transverse rail assembly;

[0020] The vacuum box is adapted to be laterally movable by the transverse rail assembly;

[0021] A screw nut assembly, wherein the screw nut assembly is mounted on the transverse guide rail assembly;

[0022] The screw nut assembly is suitable for driving the vacuum box to move vertically;

[0023] A longitudinal slider assembly is installed on the screw nut assembly, the longitudinal slider assembly is connected to the vacuum box, and the longitudinal slider assembly is suitable for driving the vacuum box to move longitudinally.

[0024] Further, in order to adjust the position of the shaping roller in the vacuum box, the transmission mechanism includes:

[0025] A nut seat, the nut seat being mounted on the corresponding shaping box;

[0026] A lead screw, one end of which is connected to the guide rod, and the other end of which extends and passes through the nut seat;

[0027] The lead screw is suitable for rotating to drive the guide rod to move axially.

[0028] Furthermore, in order to achieve manual fine adjustment, the transmission mechanism also includes a manual control component, and the manual control component includes:

[0029] A bevel gear, wherein the bevel gear is arranged on the lead screw;

[0030] A manual rotating shaft is provided with a matching bevel gear matching the bevel gear, and the manual rotating shaft is installed on the corresponding shaping box and extends outside the shaping box.

[0031] Furthermore, in order to facilitate operation, a manual rotating wheel is provided on one end of the manual rotating shaft extending outside the shaping box.

[0032] Further, in order to provide accurate correction indication, the shaping box further comprises at least one auxiliary guide rod;

[0033] The shaping box is provided with an auxiliary guide rod connecting seat which is slidably matched with the auxiliary guide rod;

[0034] One end of the auxiliary guide rod is connected to the shaping roller, and the other end extends from the auxiliary guide rod connecting seat to the inside of the shaping box, and a scale needle is provided on the other end;

[0035] The shaping box is provided with a scale matched with the scale needle.

[0036] Furthermore, in order to maintain overall sealing, a sealing ring is provided between the auxiliary guide rod and the shaping box.

[0037] Furthermore, a specific structure of a shaping roller is provided, wherein the shaping roller is a structure that is thin in the middle and thick at both ends.

[0038] Furthermore, the correction component also includes a fixed fitting seat;

[0039] The shaping box is installed on the vacuum box through the fixed fitting seat;

[0040] The shape of the fixed fitting seat at the fitting position with the vacuum box is matched with the outer contour of the vacuum box.

[0041] By adopting the above technical solution, the utility model has the following beneficial effects:

[0042] In the utility model, firstly, two shaping boxes are arranged on both sides of the vacuum box near the entrance, and are symmetrical with the center of the circle of the entrance of the vacuum box as the center. Then, according to the size of the pipe to be corrected, the shaping rollers in the vacuum box are adjusted through the guide rods using a transmission mechanism, thereby changing the spacing between the pair of symmetrically arranged shaping rollers, and the pipe enters from the entrance of the vacuum box, thereby realizing the elliptical correction of the pipe entering the vacuum box.

[0043] At the same time, the circulating pump can drive the cooling water to flow in the circulating water pipeline, and multiple parallel circulating water pipelines can realize the cleaning of impurities without stopping the machine; in addition, the position adjustment component can adjust the center height of the vacuum box inlet and outlet, and can move the vacuum box left and right, so as to calibrate the center of the vacuum box inlet and outlet; adding a scale and a scale needle to the correction component can provide precise displacement and correction indications, making the elliptical correction more accurate and convenient.

[0044] In summary, the utility model effectively solves the problem that the pipe needs elliptical correction, improves the adaptability and accuracy to pipes of different sizes and materials, and at the same time provides a convenient operation method, significantly improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a three-dimensional structural schematic diagram of the pipe ellipse correction device of the utility model;

[0046] Figure 2 for Figure 1 A partial enlarged view of part A;

[0047] Figure 3 This is a front view of the pipe ellipse correction device of the utility model;

[0048] Figure 4 It is a three-dimensional structural schematic diagram of the correction component of the tube ellipse correction device of the utility model;

[0049] Figure 5 It is a cross-sectional view of the correction component of the pipe ellipse correction device of the utility model. DETAILED DESCRIPTION

[0050] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0051] like Figure 1-5 As shown, a pipe ellipse correction device comprises:

[0052] A vacuum box 100, one end of which is provided with an inlet for the pipe to enter, and the other end of which is provided with an outlet for the pipe to exit;

[0053] Two correction components, the correction components can be of the following structure:

[0054] The shaping box 210 of the two correction components is symmetrically installed outside the two sides of one end of the vacuum box 100 and is set close to the entrance position;

[0055] A shaping roller 220, which is disposed in the vacuum box 100;

[0056] A guide rod 230, the guide rod 230 is arranged in the corresponding shaping box 210, and one end of the guide rod 230 is connected to the corresponding shaping roller 220;

[0057] Transmission mechanism, the transmission mechanism is installed in the corresponding shaping box 210, and the transmission mechanism is connected to the other end of the corresponding guide rod 230;

[0058] The transmission mechanism is suitable for driving the corresponding shaping rollers 220 to move in the vacuum box 100 through the guide rods 230 to change the spacing between the shaping rollers 220 of the two correction components in the vacuum box 100 .

[0059] In this embodiment, if Figure 1 and Figure 3-5 As shown, firstly, two shaping boxes 210 are arranged near the entrance of the vacuum box 100 on both sides, and are symmetrical with the center of the circle of the entrance of the vacuum box 100 as the center. Then, according to the size of the pipe to be corrected, the transmission mechanism is used to adjust the shaping rollers 220 in the vacuum box 100 through the guide rods 230, thereby changing the spacing between the pair of symmetrically arranged shaping rollers 220, and the pipe enters from the entrance of the vacuum box 100 to achieve the elliptical correction of the pipe entering the vacuum box 100. This embodiment can be used for PVC materials with a maximum diameter of 800 mm. Of course, in some In the embodiment, the material is not limited to PVC, and the diameter is not limited to 800 mm, and can be set according to specific needs. For example, the material can also be PP and PE pipes, etc. The shaping roller 220 can be specifically a nylon roller with a built-in mandrel, which is connected by a bearing, and a nylon roller frame, the mandrel is connected to the nylon roller frame, and the nylon roller frame is connected to the guide rod 230. The guide rod 230 passes through the shaping box 210 and is provided with a guide sleeve. The nylon roller frame can be connected to the guide rod 230 by bolts. In some embodiments, the number of shaping boxes 210 is not limited to one pair, and can be set according to specific needs.

[0060] Specifically, Figure 1 As shown, the pipe ellipse correction device also includes a circulating water spray component, and the circulating water spray component can be the following structure:

[0061] A circulating water pipeline 310, the circulating water pipeline 310 is installed on the vacuum box 100;

[0062] A circulating pump 320, the circulating pump 320 is suitable for driving the cooling water to flow in the circulating water pipeline 310;

[0063] A spray assembly, which is installed in the vacuum box 100 and is connected to the circulating water pipeline 310;

[0064] There are two circulating water pipelines 310 , and the two circulating water pipelines 310 are arranged in parallel.

[0065] In this embodiment, if Figure 1As shown, two parallel circulating water pipelines 310 can be switched to clean impurities in the pipelines without stopping the machine. In some embodiments, the number of circulating water pipelines 310 is not limited to two and can be set according to specific needs.

[0066] Specifically, Figure 1-2 As shown, the tube ellipse correction device also includes a position adjustment component, and the position adjustment component can be the following structure:

[0067] Transverse rail assembly 410;

[0068] The vacuum box 100 is adapted to be moved laterally by means of a transverse rail assembly 410;

[0069] The screw nut assembly 420 is mounted on the transverse guide rail assembly 410;

[0070] The screw nut assembly 420 is suitable for driving the vacuum box 100 to move vertically;

[0071] The longitudinal slider assembly 430 is installed on the screw nut assembly 420. The longitudinal slider assembly 430 is connected to the vacuum box 100. The longitudinal slider assembly 430 is suitable for driving the vacuum box 100 to move longitudinally.

[0072] In this embodiment, if Figure 1-2 As shown, the position adjustment component can adjust the center height of the vacuum box 100 and calibrate the left and right movement center; specifically, the transverse guide rail assembly 410 includes a guide rail and a roller group connected to the screw nut assembly 420. The bottom of the vacuum box 100 is provided with a guide rail, and the roller group slides on the guide rail to drive the screw nut assembly 420 to move; the screw nut assembly 420 includes a screw connected to the roller group and a nut connected to the longitudinal slider assembly 430. The nut cooperates with the screw to adjust the height of the connected longitudinal slider assembly 430 by rotating the screw; the longitudinal slider assembly 430 includes a slider connected to the vacuum box 100 and a longitudinal guide rail installed on the nut and the platform connecting the nut. The slider moves longitudinally on the longitudinal guide rail to drive the vacuum box 100 to move. The three cooperate to accurately achieve fine-tuning of the position of the vacuum box 100 in the three-dimensional direction of space.

[0073] Specifically, Figure 1 and Figure 3-5 As shown, the transmission mechanism can be of the following structure:

[0074] A nut seat 510, wherein the nut seat 510 is mounted on a corresponding shaping box 210;

[0075] A lead screw 520, one end of which is connected to the guide rod 230, and the other end of which extends and passes through the nut seat 510;

[0076] The lead screw 520 is adapted to rotate and drive the guide rod 230 to move axially.

[0077] In this embodiment, if Figure 3-5 As shown, the function of the transmission mechanism is to drive the guide rod 230 and the shaping roller 220 connected thereto to move through the rotation of the lead screw 520, so as to change the distance between the two shaping rollers 220.

[0078] Specifically, Figure 1 and Figure 3-5 As shown, the transmission mechanism also includes a manual control component, and the manual control component can be the following structure:

[0079] Bevel gear, the bevel gear is arranged on the lead screw 520;

[0080] A manual rotating shaft is provided with a matching bevel gear matching the bevel gear, and the manual rotating shaft is installed on the corresponding shaping box 210 and extends to the outside of the shaping box 210.

[0081] In this embodiment, if Figure 1 and Figure 3-5 As shown, the function of the manual control component is to realize manual control of the rotation of the lead screw 520, accurately adjust the spacing of the shaping rollers 220, and drive the lead screw 520 to rotate through the engagement of the matching bevel gear of the manual rotating shaft outside the shaping box 210 and the bevel gear on the lead screw 520. The lead screw 520 then drives the guide rod 230 to move to complete the spacing adjustment, and finally the precise positioning is displayed through the scale.

[0082] Specifically, Figure 1 and Figure 3-5 As shown, a manual rotating shaft is provided on one end extending outside the shaping box 210 and has a manual rotating wheel.

[0083] In this embodiment, if Figure 1 and Figure 3-5 As shown, the purpose of setting the manual rotary disc is to facilitate the operator to drive the manual rotating shaft to rotate in the form of a handwheel. The manual rotary disc is fixedly installed on the end of the manual rotating shaft extending from the outside of the forming box 210. The manual rotary disc constitutes a handwheel structure, and its outer diameter size is suitable for human hand grasping. At the same time, the output torque calculation is considered to be reasonably designed. The material of the manual rotary disc can have a certain strength, and the surface treatment is rough to increase the grip friction. There is a hole in the middle and an extended handle.

[0084] Specifically, Figure 1 and Figure 3-5 As shown, the shaping box 210 also includes two auxiliary guide rods 240;

[0085] An auxiliary guide rod connection seat 250 is provided in the shaping box 210 and is slidably matched with the auxiliary guide rod 240;

[0086] One end of one of the auxiliary guide rods 240 is connected to the shaping roller 220, and the other end extends from the auxiliary guide rod connecting seat 250 to the inside of the shaping box 210, and a scale needle 241 is provided on the other end;

[0087] The shaping box 210 is provided with a scale that matches the scale needle 241 .

[0088] In this embodiment, if Figure 3-5 As shown, the auxiliary guide rod 240, the scale needle 241 and the scale gauge are provided for the purpose of realizing the measurement and display of the spacing parameters of the shaping rollers 220. Thus, the adjustment distance and value of the spacing of the shaping rollers 220 can be displayed in real time through the indication of the scale needle 241 on the scale gauge, providing parameter feedback for the operator to realize precise adjustment. The scale needle 241 and the scale gauge are clearly marked and easy to read. There can be only one auxiliary guide rod 240 with the scale needle 241, and the number of auxiliary guide rods 240 without the scale needle 241 is not limited to one and can be set according to specific needs.

[0089] Specifically, Figure 1 and Figure 3-5 As shown, a sealing ring is provided between the auxiliary guide rod 240 and the shaping box 210 .

[0090] In this embodiment, if Figure 1 and Figure 3-5 As shown, the purpose of setting the sealing ring is to ensure that the airtightness of the vacuum box 100 will not be reduced from the shaping box 210, and to prevent gas from leaking into the vacuum box 100 from the structural connection gap, wherein the dynamic seal between the lead screw 520 and the nut seat 510 can adopt a sealing skin, which can be an annular thin film seal, which is sleeved on the outer circumference of the lead screw and frictionally seals between the inner wall of the sleeve as the lead screw rotates. The sealing skin material can also be wax, which ensures the sealing effect while reducing the friction resistance. The connection between the fixed fitting seat and the shaping box 210 and the connection between the fixed fitting seat and the vacuum box 100 can be static seals, and the material can be selected from elastic materials such as rubber. Other connections and active parts also need to be provided with airtight seals depending on the situation.

[0091] Specifically, Figure 3-5 As shown, the shaping roller 220 has a structure that is thin in the middle and thick at both ends.

[0092] In this embodiment, if Figure 1-5 As shown, the surface shape of the shaping roller 220 is similar to an arc-shaped hourglass, which is thin in the middle and thick at both ends. The thick end is mainly used to position and support the upper and lower positions of the pipe; the thin end is mainly used to apply centripetal pressure to the middle of the pipe, so that the cross section of the pipe undergoes corresponding plastic deformation to achieve ovality correction. Under the premise of ensuring that the two ends of the pipe are correctly supported, defects at the upper and lower ends of the pipe due to excessive pressure can be avoided.

[0093] Specifically, Figure 1 and Figure 3-5 As shown, the correction component also includes a fixed fitting seat;

[0094] The shaping box 210 is mounted on the vacuum box 100 through a fixed fitting seat;

[0095] The shape of the fixed fitting seat at the fitting position with the vacuum box 100 is adapted to the outer contour of the vacuum box 100 .

[0096] In this embodiment, if Figure 1 and Figure 3-5 As shown, the fitting surface of the fixed fitting seat that fits with the vacuum box 100 is precisely designed to match the outer contour of the vacuum box 100, so that the shaping box 210 can be firmly installed on the outer wall of the vacuum box 100, avoiding displacement or loosening of the entire correction component under the action of the pipe correction force. The material of the fixed fitting seat can have sufficiently high rigidity, and the connection method must also be reliable, such as bolt pre-tightening or riveting.

[0097] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipe ellipse correction device, characterized in that: include: A vacuum box (100), wherein one end of the vacuum box (100) is provided with an inlet suitable for the pipe to enter, and the other end is provided with an outlet suitable for the pipe to exit; Two correction components, the correction components include: A shaping box (210), wherein the shaping boxes (210) of the two correction components are symmetrically mounted outside two sides of one end of the vacuum box (100) and are arranged close to the inlet position; A shaping roller (220), wherein the shaping roller (220) is arranged in the vacuum box (100); A guide rod (230), wherein the guide rod (230) is disposed in the corresponding shaping box (210), and one end of the guide rod (230) is connected to the corresponding shaping roller (220); A transmission mechanism, the transmission mechanism being installed in the corresponding shaping box (210), the transmission mechanism being connected to the other end of the corresponding guide rod (230); The transmission mechanism is suitable for driving the corresponding shaping roller (220) to move in the vacuum box (100) via the guide rod (230), so as to change the spacing between the shaping rollers (220) of the two correction components in the vacuum box (100).

2. The tube ellipse correction device according to claim 1, characterized in that: It also includes a circulating water spray component, which includes: A circulating water pipeline (310), wherein the circulating water pipeline (310) is installed on the vacuum box (100); A circulating pump (320), wherein the circulating pump (320) is suitable for driving cooling water to flow in the circulating water pipeline (310); A spray assembly, the spray assembly being installed in the vacuum box (100), the spray assembly being connected to the circulating water pipeline (310); The circulating water pipeline (310) is provided with at least two paths, and a plurality of the circulating water pipelines (310) are arranged in parallel.

3. The tube ellipse correction device according to claim 1, characterized in that: Also includes a position adjustment component, the position adjustment component includes: Transverse rail assembly (410); The vacuum box (100) is suitable for being laterally moved by the transverse guide rail assembly (410); A screw nut assembly (420), the screw nut assembly (420) being mounted on the transverse guide rail assembly (410); The screw nut assembly (420) is suitable for driving the vacuum box (100) to move vertically; A longitudinal slider assembly (430), the longitudinal slider assembly (430) being mounted on the screw nut assembly (420), the longitudinal slider assembly (430) being connected to the vacuum box (100), and the longitudinal slider assembly (430) being suitable for driving the vacuum box (100) to move longitudinally.

4. The tube ellipse correction device according to claim 1, characterized in that: The transmission mechanism comprises: A nut seat (510), the nut seat (510) being mounted on the corresponding shaping box (210); A lead screw (520), one end of the lead screw (520) being connected to the guide rod (230), and the other end of the lead screw (520) extending through the nut seat (510); The lead screw (520) is suitable for rotating to drive the guide rod (230) to move axially.

5. The tube ellipse correction device according to claim 4, characterized in that: The transmission mechanism also includes a manual control component, which includes: A bevel gear, the bevel gear being arranged on the lead screw (520); A manual rotating shaft is provided with a matching bevel gear matching the bevel gear, and the manual rotating shaft is mounted on the corresponding shaping box (210) and extends outside the shaping box (210).

6. The tube ellipse correction device according to claim 5, characterized in that: A manual rotating wheel is provided on one end of the manual rotating shaft extending outside the shaping box (210).

7. The tube ellipse correction device according to claim 1, characterized in that: The shaping box (210) further comprises at least one auxiliary guide rod (240); An auxiliary guide rod connecting seat (250) which is slidably matched with the auxiliary guide rod (240) is provided in the shaping box (210); One end of the auxiliary guide rod (240) is connected to the shaping roller (220), and the other end extends from the auxiliary guide rod connecting seat (250) to the inside of the shaping box (210), and a scale needle (241) is provided on the other end; The shaping box (210) is provided with a scale that matches the scale needle (241).

8. The tube ellipse correction device according to claim 7, characterized in that: A sealing ring is provided between the auxiliary guide rod (240) and the shaping box (210).

9. The tube ellipse correction device according to claim 1, characterized in that: The shaping roller (220) has a structure that is thin in the middle and thick at both ends.

10. The tube ellipse correction device according to claim 1, characterized in that: The correction component also includes a fixed fitting seat; The shaping box (210) is mounted on the vacuum box (100) via the fixed fitting seat; The shape of the fixed fitting seat at the fitting position with the vacuum box (100) is adapted to the outer contour of the vacuum box (100).

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