Improved elliptical tube flattening machine

Abstract

The utility model discloses an improved elliptical tube flattening machine which comprises a main machine frame, a forming lower die and a forming upper die, a pressure supply main body is fixedly installed on one side of the main machine frame through a flange, three installation cavities are formed in the pressure supply main body at equal intervals, and hydraulic oil cylinders are fixedly installed in the installation cavities at equal intervals. The output ends of the hydraulic oil cylinders extend to the outer side of the pressure supply body and are fixedly connected with an upper forming die, a lower forming die is fixedly installed at the bottom of the pressure supply body, and displacement sensors are connected to the two sides of the upper forming die through fixing plates. When the improved elliptical tube flattening machine is used, pressure is supplied to the hydraulic oil cylinder, the forming lower die is fixed, the forming upper die is lifted upwards to stretch and form a circular tube, and the lifting height of the hydraulic oil cylinder is limited through displacement sensors at the two ends in the forming process; by arranging the three sets of hydraulic oil cylinders, the forming upper die is driven to move upwards more stably, and the technical problems that in the related technology, the working loss of a forming mode is too large, hydraulic power cannot be effectively utilized, and the working efficiency is low are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oval flat pipe production technical field especially relates to improved oval flat pipe machine. BACKGROUND

[0002] Oval flat pipe has multiple advantages, especially in the industrial and construction fields. As a unique pipe shape, oval flat pipe provides stronger rigidity and bending resistance compared to traditional round pipes, which makes it suitable for various complex piping systems. This pipe material has excellent durability and corrosion resistance, allowing it to be used for a long time without damage. In addition, the design of oval flat pipe can save space, making it easy to install and arrange the piping system, while its high stability makes the pipe more robust and stable, capable of withstanding greater pressure and load. The oval shape reduces water flow resistance, improving the flow rate and operational efficiency of the pipe, making it an ideal choice for multiple fields such as construction, engineering, heating, and air conditioning systems. The lifting mechanism of the commonly used flat pipe machine is to use a wedge structure to achieve the purpose of lifting. This lifting method requires an oil cylinder to drive the wedge structure, which in turn acts on the oil cylinder to achieve the function of forming a round pipe into an oval flat pipe. However, this forming method has too much work loss and cannot effectively utilize hydraulic power, resulting in low work efficiency. To address the above problems, we have developed an improved oval flat pipe machine. SUMMARY

[0003] The utility model discloses improved oval flat pipe machine, aims at solving the technical problem of the work loss of forming method in the related art is too big, cannot effectively utilize the power of hydraulic pressure, and the technical problem of low work efficiency.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] Improved oval flat pipe machine, including mainframe, forming lower mould and forming upper mould, one side of mainframe is equipped with pressure supply main body through flange fixed mounting, three installation cavities are equally set up in pressure supply main body, hydraulic oil cylinder is fixed and installed in installation cavity equally, the output of hydraulic oil cylinder all extends to pressure supply main body outside and is connected with forming upper mould fixedly, the bottom of pressure supply main body is fixedly installed with forming lower mould, both sides of forming upper mould are connected with displacement sensor through fixed plate.

[0006] When the hydraulic oil cylinder is supplied with pressure, the forming lower mould does not move, and the forming upper mould is lifted upward to realize the stretching forming of the round pipe. The lifting height of the hydraulic oil cylinder is limited by the displacement sensors at both ends during the forming process. The three groups of hydraulic oil cylinders are set to drive the upward movement of the forming upper mould more stably, solving the technical problems of the work loss of forming method in the related art being too big, the power of hydraulic pressure not being effectively utilized, and the work efficiency being low.

[0007] In a preferred scheme, the body of the displacement sensor is symmetrically fixedly installed inside both sides of the lower mold, and the sensing sheet of the displacement sensor is fixed on the top of the fixed plate and connected through a signal line in the middle.

[0008] By arranging the displacement sensor, the up-moving expansion distance of the upper mold can be accurately controlled, and the use is more accurate.

[0009] In a preferred scheme, the output end of the hydraulic oil cylinder is sleeved with a balance plate, and the side of the balance plate close to the upper mold is fixedly connected with the upper mold.

[0010] By arranging the balance plate, the height difference of the oil cylinder during operation can be effectively prevented.

[0011] In a preferred scheme, the outer sides of the upper mold and the lower mold away from the main rack are both fixedly installed with film expanding pieces, and the outer sides of the film expanding pieces are both fixedly installed with protruding ribs.

[0012] By arranging the film expanding pieces, one end of the elliptical flat tube can be expanded, the connection of the two elliptical flat tubes in the later period is facilitated, and the protruding ribs are arranged to be slotted on the inner side of the elliptical flat tube, so that the sealing ring can be fixed in the groove.

[0013] In a preferred scheme, the surface of the main rack is fixedly installed with a control main plate, and the hydraulic oil cylinder and the displacement sensor are both electrically connected with the control main plate.

[0014] By arranging the control main plate, the work of the hydraulic oil cylinder and the displacement sensor can be controlled.

[0015] In a preferred scheme, the sides away from each other of the lower mold and the upper mold are both arranged as arc surfaces, and the film expanding pieces and the protruding ribs are both arranged as arc structures.

[0016] By arranging the arc surfaces arranged on the sides away from each other of the lower mold and the upper mold, and the arc structures of the film expanding pieces and the protruding ribs, the use is more convenient.

[0017] The improved elliptical flat tube machine has the following advantages:

[0018] Firstly, when the hydraulic oil cylinder is supplied with pressure during use, the lower mold is stationary, and the upper mold is lifted upward to realize the stretching and molding of the round pipe, and the lifting height of the hydraulic oil cylinder is limited by the displacement sensors at both ends during the molding process; the three groups of hydraulic oil cylinders are arranged to drive the upper mold to move upward more stably, and the technical problems of large work loss of the molding mode, ineffective use of hydraulic power and low operation efficiency in the related art are solved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The right view perspective view of the improved elliptical flat pipe machine.

[0020] Figure 2 The left view perspective view of the improved elliptical flat pipe machine.

[0021] Figure 3 The perspective view of the film expanding part in the improved elliptical flat pipe machine.

[0022] Figure 4 The Figure 2 Enlarged view of A in the middle.

[0023] In the drawings: 1, main rack; 2, pressure supply body; 3, forming lower die; 4, installation cavity; 5, hydraulic oil cylinder; 6, forming upper die; 7, balance plate; 8, fixed plate; 9, displacement sensor; 10, film expanding part; 11, convex rib; 12, control mainboard. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and indicated in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0025] The improved elliptical flat pipe machine disclosed by the present application is mainly applied to the scene of stretching a round pipe into an elliptical flat pipe.

[0026] With reference to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the improved elliptical flat pipe machine comprises a main rack 1, a forming lower die 3 and a forming upper die 6, a pressure supply body 2 is fixedly installed on one side of the main rack 1 through a flange, three installation cavities 4 are equidistantly formed in the pressure supply body 2, hydraulic oil cylinders 5 are equidistantly and fixedly installed in the installation cavities 4, output ends of the hydraulic oil cylinders 5 extend to the outside of the pressure supply body 2 and are fixedly connected with the forming upper die 6, the forming lower die 3 is fixedly installed at the bottom of the pressure supply body 2, and displacement sensors 9 are connected with the forming upper die 6 through fixed plates 8 on both sides of the forming upper die 6.

[0027] In use, when the hydraulic cylinder 5 is supplied with pressure, the forming lower die 3 is stationary, and the forming upper die 6 is lifted upward to realize the stretch forming of the circular pipe. In the forming process, the lifting height of the hydraulic cylinder 5 is limited by the displacement sensor 9 at both ends. The three groups of hydraulic cylinders 5 are arranged to drive the forming upper die 6 to move upward more stably, thereby solving the technical problems of large working loss in the forming mode, ineffective utilization of hydraulic power, and low operation efficiency in the related art.

[0028] The displacement sensor 9 is symmetrically fixed to the inside of both sides of the forming lower die 3, and the sensing sheet of the displacement sensor 9 is fixed to the top of the fixed plate 8 and connected by a signal line in the middle. The displacement sensor 9 is arranged to facilitate accurate control of the expansion distance of the forming upper die 6 moving upward, and the use is more accurate.

[0029] The output end of the hydraulic cylinder 5 is provided with a balance plate 7, and the side of the balance plate 7 close to the forming upper die 6 is fixedly connected with the forming upper die 6. The balance plate 7 can effectively prevent the height difference during the operation of the oil cylinder.

[0030] The forming upper die 6 and the forming lower die 3 are fixedly installed with an expanding member 10 outside the side away from the main rack 1, and the expanding member 10 is fixedly installed with a protruding rib 11 outside the middle. The expanding member 10 is arranged to facilitate the expansion of one end of the elliptical flat tube, facilitate the connection of the two elliptical flat tubes, and the protruding rib 11 is arranged to groove on the inside of the elliptical flat tube, and the sealing ring is fixed in the groove.

[0031] The control main plate 12 is fixedly installed on one side of the surface of the main rack 1, and the hydraulic cylinder 5 and the displacement sensor 9 are electrically connected with the control main plate 12. The control main plate 12 is arranged to facilitate the control of the work of the hydraulic cylinder 5 and the displacement sensor 9.

[0032] The forming lower die 3 and the forming upper die 6 are arranged as arc surfaces away from each other, and the expanding member 10 and the protruding rib 11 are arranged as arc structures. The arc surfaces arranged on the sides away from each other of the forming lower die 3 and the forming upper die 6, and the arc structures of the expanding member 10 and the protruding rib 11 are arranged to facilitate the use.

[0033] Working principle: in use, when the hydraulic cylinder 5 is supplied with pressure, the forming lower die 3 is stationary, and the forming upper die 6 is lifted upward to realize the stretch forming of the circular pipe. In the forming process, the lifting height of the hydraulic cylinder 5 is limited by the displacement sensor 9 at both ends. The three groups of hydraulic cylinders 5 are arranged to drive the forming upper die 6 to move upward more stably.

[0034] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. According to the technical solution and the inventive concept of the present application, equivalent replacement or change should be covered in the protection scope of the present application.

Claims

1. Improved machine for the production of elliptical flat tubes, comprising a main frame (1), a forming lower die (3) and a forming upper die (6), characterized in that, The side of the main frame (1) is fixedly installed with a pressure supply body (2) through a flange, three installation cavities (4) are equidistantly arranged in the pressure supply body (2), hydraulic oil cylinders (5) are equidistantly and fixedly installed in the installation cavities (4), the output ends of the hydraulic oil cylinders (5) extend to the outside of the pressure supply body (2) and are fixedly connected with a forming upper die (6), a forming lower die (3) is fixedly installed at the bottom of the pressure supply body (2), displacement sensors (9) are connected with the two sides of the forming upper die (6) through fixed plates (8).

2. The improved elliptical dumpy tube machine as claimed in claim 1, wherein, The main bodies of the displacement sensors (9) are symmetrically and fixedly installed in the two sides of the forming lower die (3), the sensing sheets of the displacement sensors (9) are fixed on the top of the fixed plates (8), and the middle parts are connected through signal lines.

3. The improved elliptical dumpy tube machine as claimed in claim 1, wherein, The output ends of the hydraulic oil cylinders (5) are sleeved with balance plates (7), and the balance plates (7) are fixedly connected with the forming upper die (6) on the side close to the forming upper die (6).

4. The improved elliptical dumpy tube machine as claimed in claim 1, wherein, The outer sides of the forming upper die (6) and the forming lower die (3) away from the main frame (1) are fixedly installed with film expanding pieces (10), and the outer sides of the film expanding pieces (10) are fixedly installed with convex ribs (11) in the middle.

5. The improved elliptical dumpy tube machine as claimed in claim 1, wherein, The surface of the main frame (1) is fixedly installed with a control main plate (12), and the hydraulic oil cylinders (5) and the displacement sensors (9) are electrically connected with the control main plate (12).

6. The improved elliptical tube machine as claimed in claim 4, wherein, The forming lower die (3) and the forming upper die (6) are arc-shaped on the side away from each other, and the film expanding pieces (10) and the convex ribs (11) are arc-shaped.

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