Polyethylene pipeline demolding compression roller mechanism

Abstract

The utility model discloses a polyethylene pipeline demoulding compression roller mechanism which comprises a bottom frame, the top end of the bottom frame is fixedly connected with an installation frame, a demoulding assembly is arranged in the installation frame, the inner wall of the demoulding assembly is symmetrically and fixedly connected with limiting side rods, and the interiors of the limiting side rods are slidably connected with connecting plates. An upper pressing roller is rotationally connected between the two connecting plates, and sliding plates are symmetrically connected into the two limiting side rods in a sliding mode. According to the polyethylene pipeline demolding compression roller mechanism, through elastic force generated by a spring, an upper compression roller at the outer end of a connecting plate is close to a lower compression roller in a mounting frame, the friction force between the upper compression roller and the lower compression roller is increased by increasing the pressure between the upper compression roller and the lower compression roller, and then the polyethylene pipe at the outer end of a shaping mold can be rapidly demolded; meanwhile, the demolding effect of the polyethylene pipe is good, the damage degree of the polyethylene pipe in the demolding process is reduced, and the production quality of the polyethylene pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline demoulding devices, in particular to a polyethylene pipeline demoulding roller mechanism. Background Art

[0002] Polyethylene pipe is also called PE pipe. It has a wide range of applications and is used in natural gas, industrial and urban pipelines. Polyethylene pipe uses polyethylene resin particles as the main raw material, and is melted, and then the melted material is cooled by air or water and sent into the mold, and then the polyethylene is extruded into pipes. After extrusion, the polyethylene pipe needs to be cooled and stretched to obtain better physical properties. After the polyethylene pipe is molded, it needs to be demolded.

[0003] Traditional polyethylene pipe demoulding mostly adopts manual operation, which has low efficiency and is very easy to cause damage to the polyethylene pipe during the demoulding process, thus affecting the production quality of the polyethylene pipe.

[0004] To this end, the utility model provides a polyethylene pipe demoulding roller mechanism, which enables the upper and lower rollers to quickly demould the polyethylene pipe at the outer end of the shaping mold through the pressure applied by the spring, so as to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a polyethylene pipe demoulding roller mechanism to solve the above problems.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a polyethylene pipe demoulding roller mechanism, including a base frame, a mounting frame fixedly connected to the top of the base frame, a demoulding assembly is arranged inside the mounting frame, the inner wall of the demoulding assembly is symmetrically fixedly connected to a limiting side rod, a connecting plate is slidably connected inside the limiting side rod, an upper pressure roller is rotatably connected between the two connecting plates, a slide plate is symmetrically slidably connected inside the two limiting side rods, a cross bar is fixedly connected between the two slide plates, a connecting rod is fixedly connected between the two connecting plates, a spring is symmetrically fixedly connected between the cross bar and the connecting rod, and a lower pressure roller is rotatably connected below the mounting frame.

[0007] Preferably, the upper pressing roller and the lower pressing roller are arc-shaped structures, and the limiting side rod is a U-shaped structure.

[0008] Preferably, the top end of the crossbar is fixedly connected to a connecting seat, the top end of the mounting frame is rotatably connected to a threaded sleeve, the interior of the connecting seat is rotatably connected to a screw rod, and the screw rod and the threaded sleeve are threadedly connected.

[0009] Preferably, a servo motor is fixedly connected to one side of the mounting frame, a transmission bevel gear is fixedly connected to the output end of the servo motor, a driven bevel gear is fixedly connected to the bottom end of the threaded sleeve, and the transmission bevel gear is meshed with the driven bevel gear.

[0010] Preferably, side brackets are symmetrically fixedly connected to both sides of the base frame, a clamping frame is symmetrically fixedly connected to the top of the side bracket, and a guide roller is rotatably connected between the two opposed clamping frames.

[0011] Preferably, the brackets are provided with two groups, and a shaping mold is provided at the top end of the guide roller.

[0012] Beneficial Effects

[0013] The utility model provides a polyethylene pipe demoulding roller mechanism. Compared with the prior art, it has the following beneficial effects:

[0014] (1) The polyethylene pipe demoulding roller mechanism uses the elastic force generated by the spring to make the upper roller at the outer end of the connecting plate approach the lower roller inside the mounting frame, and increases the friction between the upper roller and the lower roller by increasing the pressure between them, thereby facilitating the rapid demoulding of the polyethylene pipe at the outer end of the shaping mold. At the same time, the demoulding effect of the polyethylene pipe is good, the damage degree of the polyethylene pipe during the demoulding process is reduced, and the production quality of the polyethylene pipe is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the demoulding component of the utility model;

[0017] Figure 3 It is a schematic diagram of the connection structure of the driving bevel gear and the driven bevel gear of the utility model;

[0018] Figure 4 It is a front view of the mounting frame of the utility model.

[0019] In the figure, 1, base frame; 2, mounting frame; 3, demoulding assembly; 301, limiting side rod; 302, connecting plate; 303, upper pressure roller; 304, slide plate; 305, cross bar; 306, connecting rod; 307, spring; 308, lower pressure roller; 4, connecting seat; 5, threaded sleeve; 6, screw; 7, servo motor; 8, driving bevel gear; 9, driven bevel gear; 10, side bracket; 11, bracket; 12, guide roller; 13, shaping mold. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1:

[0022] See also Figure 1-2 A polyethylene pipe demoulding roller mechanism comprises a base frame 1, a mounting frame 2 is fixedly connected to the top of the base frame 1, a demoulding component 3 is arranged inside the mounting frame 2, a limiting side rod 301 is symmetrically fixedly connected to the inner wall of the demoulding component 3, a connecting plate 302 is slidably connected to the inside of the limiting side rod 301, an upper pressing roller 303 is rotatably connected between the two connecting plates 302, a slide plate 304 is symmetrically slidably connected to the inside of the two limiting side rods 301, a cross bar 305 is fixedly connected between the two slide plates 304, a connecting rod 306 is fixedly connected between the two connecting plates 302, a spring 307 is symmetrically fixedly connected between the cross bar 305 and the connecting rod 306, and a lower pressing roller 308 is rotatably connected to the bottom of the mounting frame 2. The purpose of this arrangement is that the elastic force generated by the spring 307 causes the upper pressure roller 303 between the two sets of connecting plates 302 to move downward. At the same time, the elastic force generated by the spring 307 increases the friction between the upper pressure roller 303, the lower pressure roller 308 and the polyethylene tube, thereby facilitating the rapid demoulding of the polyethylene tube. At the same time, the spring 307 can be adjusted according to the caliber of the polyethylene tube and is suitable for polyethylene tubes of various calibers.

[0023] Preferably, the upper pressing roller 303 and the lower pressing roller 308 are arc-shaped structures, and the limiting side rod 301 is a U-shaped structure. The purpose of this arrangement is that the upper pressing roller 303 and the lower pressing roller 308 of the arc-shaped structure increase their contact area with the polyethylene tube, thereby enhancing the demoulding effect of the polyethylene tube.

[0024] In this embodiment, the shaping mold 13 and the polyethylene tube formed at its outer end are passed through the gap between the upper pressing roller 303 and the lower pressing roller 308. Due to the elastic force of the spring 307, the upper pressing roller 303, the lower pressing roller 308 and the polyethylene tube are tightly fitted, thereby increasing the friction between the polyethylene tube and the upper pressing roller 303, the lower pressing roller 308, thereby facilitating the rapid demolding of the polyethylene pipe at the outer end of the shaping mold 13. The operation is simple, the demolding speed is fast, and the degree of damage to the polyethylene tube during the demolding process is small, thereby improving the production quality of the polyethylene tube.

[0025] Embodiment 2:

[0026] See also Figure 1-4This embodiment provides a technical solution of a polyethylene pipe demoulding roller mechanism on the basis of the first embodiment: the top of the crossbar 305 is fixedly connected with a connecting seat 4, the top of the mounting frame 2 is rotatably connected with a threaded sleeve 5, the inside of the connecting seat 4 is rotatably connected with a screw rod 6, the screw rod 6 and the threaded sleeve 5 are threadedly connected, one side of the mounting frame 2 is fixedly connected with a servo motor 7, the output end of the servo motor 7 is fixedly connected with a transmission bevel gear 8, the bottom end of the threaded sleeve 5 is fixedly connected with a driven bevel gear 9, and the transmission bevel gear 8 and the driven bevel gear 9 are meshed. The purpose of this setting is that the servo motor 7 can adjust the spacing between the upper pressure roller 303 and the lower pressure roller 308, so as to be suitable for polyethylene pipes of various calibers.

[0027] Preferably, the two sides of the bottom frame 1 are symmetrically fixedly connected with the side brackets 10, the top of the side brackets 10 is symmetrically fixedly connected with the clamping frame 11, the two opposed clamping frames 11 are rotatably connected with the guide rollers 12, the clamping frames 11 are provided with two groups, and the top of the guide rollers 12 is provided with a shaping mold 13. The purpose of this arrangement is that the provided guide rollers 12 facilitate the shaping mold 13 and the polyethylene pipe at the outer end to move at the top of the side bracket 10, so that the staff can save more effort when performing the demoulding operation, and the diameter of the shaping mold 13 is adjusted according to the production caliber requirements of the polyethylene pipe.

[0028] In this embodiment, when the diameter of the polyethylene pipe is too large or too small, the servo motor 7 drives the transmission bevel gear 8 to rotate, and the rotating transmission bevel gear 8 drives the driven bevel gear 9 and the threaded sleeve 5 at the top thereof to rotate at the top of the mounting frame 2, thereby rotating the screw 6, and then causing the connecting plate 302 to slide up and down inside the limiting side rod 301. By adjusting the spacing between the upper pressure roller 303 and the lower pressure roller 308, it is suitable for polyethylene pipes of various diameters. During operation, the shaping mold 13 and the polyethylene pipe at its outer end are pushed at the top of the side bracket 10, and the guide roller 12 is arranged to facilitate the movement of the shaping mold 13, which is more labor-saving and convenient during operation.

[0029] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyethylene pipe demoulding roller mechanism, comprising a base frame (1), characterized in that: The top of the bottom frame (1) is fixedly connected to a mounting frame (2), a demoulding assembly (3) is arranged inside the mounting frame (2), a limiting side rod (301) is symmetrically fixedly connected to the inner wall of the demoulding assembly (3), a connecting plate (302) is slidably connected inside the limiting side rod (301), an upper pressure roller (303) is rotatably connected between the two connecting plates (302), a slide plate (304) is symmetrically slidably connected inside the two limiting side rods (301), a cross bar (305) is fixedly connected between the two slide plates (304), a connecting rod (306) is fixedly connected between the two connecting plates (302), a spring (307) is symmetrically fixedly connected between the cross bar (305) and the connecting rod (306), and a lower pressure roller (308) is rotatably connected below the mounting frame (2).

2. A polyethylene pipe demoulding roller mechanism according to claim 1, characterized in that: The upper pressing roller (303) and the lower pressing roller (308) are arc-shaped structures, and the limiting side rod (301) is a U-shaped structure.

3. A polyethylene pipe demoulding roller mechanism according to claim 1, characterized in that: The top end of the cross bar (305) is fixedly connected to a connecting seat (4), the top end of the mounting frame (2) is rotatably connected to a threaded sleeve (5), the interior of the connecting seat (4) is rotatably connected to a screw rod (6), and the screw rod (6) is threadedly connected to the threaded sleeve (5).

4. A polyethylene pipe demoulding roller mechanism according to claim 3, characterized in that: A servo motor (7) is fixedly connected to one side of the mounting frame (2); a transmission bevel gear (8) is fixedly connected to the output end of the servo motor (7); a driven bevel gear (9) is fixedly connected to the bottom end of the threaded sleeve (5); and the transmission bevel gear (8) is meshed with the driven bevel gear (9).

5. The polyethylene pipe demoulding roller mechanism according to claim 1, characterized in that: Side brackets (10) are symmetrically fixedly connected to both sides of the base frame (1), a clamping frame (11) is symmetrically fixedly connected to the top of the side bracket (10), and a guide roller (12) is rotatably connected between the two opposed clamping frames (11).

6. A polyethylene pipe demoulding roller mechanism according to claim 5, characterized in that: The bracket (11) is provided with two groups, and a shaping mold (13) is provided at the top end of the guide roller (12).

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