Rapid forming production equipment for outer wall of nodular cast iron jacking pipe

Abstract

A nodular cast iron jacking pipe outer wall rapid forming production device comprises a chassis, a motor base and a demolding hydraulic cylinder are installed on the chassis, a driving motor is installed on the motor base, a driving gear is arranged at the output end of the driving motor and meshed with the side edge of a mold, and the lower portion of the mold is arranged on the chassis. A vibrator is installed on the outer wall of the mold, the demolding hydraulic cylinder is located in the middle of the upper portion of the chassis, a pipe body positioning disc is installed at the top end of the demolding hydraulic cylinder, a pipe body tray is arranged on the pipe body positioning disc, the side edge of the upper portion of the pipe body tray abuts against the bottom of the cast iron pipe body, and a disc pressing mechanism is arranged above the cast iron pipe body. The device has the advantages that demolding operation can be conducted after pouring is completed, the production efficiency of nodular cast iron jacking pipe outer wall concrete can be greatly improved, continuous production can be achieved only through one set of molds of the same specification, the mold utilization rate is greatly increased, the jacking pipe production efficiency is improved, and the daily output of the same specification depends on the number of pipe body trays.

Description

Technical Field

[0001] The utility model relates to the field of production of ductile iron jacking pipes, and particularly relates to a production device for rapid forming of the outer wall of a ductile iron jacking pipe. Background Art

[0002] A ductile iron jacking pipe is a pipe installed on the top of a building and is a form of ductile iron pipe. It has the characteristics of simple structure, convenient use, beautiful appearance, corrosion resistance, high strength, good shock resistance, etc., and can meet the requirements of buildings for safety, hygiene, environmental protection, energy conservation, etc.

[0003] In the past, high-fluidity concrete was usually used for the outer wall concrete of ductile iron jacking pipes, and the corresponding disadvantages are as follows:

[0004] 1. Since the outer wall concrete of the ductile iron jacking pipe needs to ensure high fluidity to fully fill the gap between the pipe mold and the pipe body under the action of gravity, the concrete usually needs to be cured by steam for 4 to 6 hours before demoulding can be carried out. Otherwise, it is easy for the concrete outer wall of the pipe to fall off or be damaged due to insufficient concrete strength.

[0005] 2. The steam required for steam curing is provided by combustible gases such as natural gas and coal gas through a gas boiler, and the cost is relatively high; the number of molds determines the daily output of jacking pipes in a shift, and at the same time occupies a large amount of space. It is very difficult to increase the daily output in a shift when the site is fixed and the number of molds is fixed. Content of the Utility Model

[0006] The purpose of the utility model is to provide a production device for rapid forming of the outer wall of a ductile iron jacking pipe to address the deficiencies and defects in the prior art. After pouring and compaction are completed, when the pipe body tray, cast iron pipe body, and concrete outer wall rise to the ground, they can be horizontally transferred by a forklift to a natural curing yard, and the outer wall concrete of the ductile iron jacking pipe is produced through natural curing. After the demoulding hydraulic cylinder is reset downward, another cast iron pipe body can be loaded to complete cyclic production. This device can perform demoulding operations immediately after pouring, which can greatly improve the production efficiency of the outer wall concrete of the ductile iron jacking pipe. Moreover, only one set of molds of the same specification is required for continuous production, which greatly improves the mold utilization rate and the production efficiency of the jacking pipe. The daily output of the same specification depends on the number of pipe body trays.

[0007] To achieve the above object, the following technical solutions are adopted in the utility model: A rapid prototyping production equipment for the outer wall of ductile iron jacking pipes, which includes a chassis 1. An electric motor base 2 and a demoulding hydraulic cylinder 9 are installed on the chassis 1. A driving motor 3 is installed on the electric motor base 2. A driving gear 4 is provided at the output end of the driving motor 3, and the driving gear 4 meshes with the side of the mould 5. The lower part of the mould 5 is arranged on the chassis 1. A vibrator 6 is installed on the outer wall of the mould 5. The demoulding hydraulic cylinder 9 is located in the middle above the chassis 1, and a pipe body positioning disc 11 is installed at the top end of the demoulding hydraulic cylinder 9. A pipe body tray 12 is arranged on the pipe body positioning disc 11. The side above the pipe body tray 12 abuts against the bottom of the cast iron pipe body 7, and a pressing disc mechanism is provided above the cast iron pipe body 7.

[0008] Further, a mould slewing bearing 10 is provided between the chassis 1 and the mould 5, and the mould slewing bearing 10 is in rolling cooperation with the chassis 1.

[0009] Further, a plurality of vibrators 6 are provided and are evenly distributed on the outer wall of the mould 5.

[0010] Further, the pressing disc mechanism includes a concrete pressing disc 13 and a pressing disc lifting hydraulic cylinder 14. The concrete pressing disc 13 is provided at the bottom of the pressing disc lifting hydraulic cylinder 14.

[0011] Further, a casting groove A is left between the mould 5 and the cast iron pipe body 7, and the concrete pressing disc 13 cooperates with the casting groove A.

[0012] Further, a positioning base 12A for positioning the pipe body positioning disc 11 is provided at the bottom of the pipe body tray 12. A side platform 12B for facilitating the transportation and support of the cast iron pipe body 7 by a forklift is formed by protruding the side of the pipe body tray 12.

[0013] Further, a plurality of sealing rubber strips 15 are provided between the mould 5 and the pipe body tray 12.

[0014] Further, a gear ring meshing with the driving gear 4 is arranged on the periphery of the bottom end of the mould 5. The mould 5 meshes with the driving gear 4 through the gear ring, and at least two groups of the driving motor 3 and the driving gear 4 are provided.

[0015] Further, the concrete pressing disc 13, the mould slewing bearing 10, the pipe body positioning disc 11, the pipe body tray 12 and the demoulding hydraulic cylinder 9 are all arranged coaxially.

[0016] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: When the pouring and compaction are completed, after the pipe body tray, the cast iron pipe body, and the concrete outer wall rise to the ground, they can be transferred horizontally by a forklift to the natural curing yard, and the production of the concrete on the outer wall of the ductile iron jacking pipe is completed through natural curing. After the demoulding hydraulic cylinder resets downward, another cast iron pipe body can be loaded to complete the cyclic production. This equipment can perform the demoulding operation after the pouring is completed, which can greatly improve the production efficiency of the concrete on the outer wall of the ductile iron jacking pipe. Moreover, only one set of molds of the same specification is required for continuous production, which greatly improves the utilization rate of the molds and also improves the production efficiency of the jacking pipe. The daily output of the same specification depends on the number of pipe body trays. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of the present utility model.

[0019] Figure 2 is a schematic demoulding diagram of the present utility model.

[0020] Figure 3 is a schematic structural diagram of the pipe body positioning disc and the pipe body tray in the present utility model.

[0021] Figure 4 is a schematic structural diagram of the pressing disc mechanism in the present utility model.

[0022] Figure 5 is Figure 1 an enlarged structural diagram at position A in

[0023] Figure 6 is Figure 2 an enlarged structural diagram at position B in

[0024] Description of the reference numerals: chassis 1, motor base 2, drive motor 3, drive gear 4, mold 5, vibrator 6, cast iron pipe body 7, concrete outer wall 8, demoulding hydraulic cylinder 9, mold slewing support 10, pipe body positioning disc 11, pipe body tray 12, concrete pressing disc 13, pressing disc lifting hydraulic cylinder 14, sealing strip 15, positioning base 12A, side platform 12B, pouring groove A. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Refer to Figures 1-6As shown in the figure, the technical solution adopted in this specific embodiment is as follows: It includes a chassis 1, on which a motor base 2 and a demolding hydraulic cylinder 9 are installed. A driving motor 3 is installed on the motor base 2, and a driving gear 4 is provided at the output end of the driving motor 3. The driving gear 4 meshes with the side of the mold 5. The lower part of the mold 5 is placed on the chassis 1, and a vibrator 6 is installed on the outer wall of the mold 5. The demolding hydraulic cylinder 9 is located in the middle above the chassis 1, and a pipe body positioning plate 11 is installed at the top of the demolding hydraulic cylinder 9. A pipe body tray 12 is arranged on the pipe body positioning plate 11. The side above the pipe body tray 12 abuts against the bottom of the cast iron pipe body 7, and a pressing plate mechanism is provided above the cast iron pipe body 7.

[0026] More specifically, a mold slewing bearing 10 is provided between the chassis 1 and the mold 5, and the mold slewing bearing 10 is in rolling cooperation with the chassis 1. Due to the rolling property of the mold slewing bearing 10, the chassis 1 and the mold 5 can be connected to each other in a rolling manner, which is convenient for the driving gear 4 to drive the mold 5 to rotate and can ensure the stability of the mold 5.

[0027] More specifically, several vibrators 6 are provided and are evenly distributed on the outer wall of the mold 5. During pouring, the several vibrators 6 can increase the vibration effect of the mold 5, thereby increasing the density of its concrete outer wall 8.

[0028] More specifically, the pressing plate mechanism includes a concrete pressing plate 13 and a pressing plate lifting hydraulic cylinder 14. The concrete pressing plate 13 is provided at the bottom of the pressing plate lifting hydraulic cylinder 14. When pouring the concrete outer wall 8, the concrete pressing plate 13 can ensure that the concrete outer wall 8 is more fully compacted under the pressure of the pressing plate lifting hydraulic cylinder 14. After the pouring and compaction are completed, the concrete pressing plate 13 can be lifted to the initial position via the pressing plate lifting hydraulic cylinder 14 to avoid the upcoming lifting of the pipe body tray 12, the cast iron pipe body 7 and the concrete outer wall 8.

[0029] More specifically, a pouring groove A is left between the mold 5 and the cast iron pipe body 7, and the concrete pressing plate 13 cooperates with the pouring groove A. The pouring groove A can facilitate the staff to carry out the pouring operation of the concrete outer wall 8 and cooperate with the concrete pressing plate 13 to compact the concrete outer wall 8.

[0030] More specifically, a positioning base 12A for positioning the pipe body positioning plate 11 is provided at the bottom of the pipe body tray 12, and a side platform 12B for facilitating the forklift transportation and supporting the cast iron pipe body 7 protrudes from the side of the pipe body tray 12. Chamfers are provided between the cast iron pipe body 7 and the side platform 12B, which are convenient for the positioning and installation of the cast iron pipe body 7.

[0031] More specifically, a plurality of sealing rubber strips 15 are provided between the mold 5 and the pipe body tray 12. The sealing rubber strips 15 can increase the airtightness between the mold 5 and the pipe body tray 12, prevent the concrete from entering the interior, and cause damage to the demolding hydraulic cylinder 9.

[0032] More specifically, a gear ring meshing with the driving gear 4 is arranged on the outer periphery of the bottom end of the mold 5. The mold 5 is meshed with the driving gear 4 through the gear ring, and at least two groups of driving motors 3 and driving gears 4 are provided. The driving gear 4 drives the mold 5 to perform a small-range reciprocating rotation operation, so that the mold 5 rotates within a small range along the geometric central axis, and the rotation angle is 5°. Thereby, it plays a role in polishing the outer wall 8 of the concrete and making the outer wall 8 of the concrete have a free gap with the mold 5, which is convenient for demolding the outer wall 8 of the concrete. And multiple groups of driving motors 3 and driving gears 4 can ensure that the mold 5 rotates more smoothly in a square shape.

[0033] More specifically, the concrete pressing plate 13, the mold slewing bearing 10, the pipe body positioning plate 11, the pipe body tray 12 and the demolding hydraulic cylinder 9 are all arranged coaxially.

[0034] Working principle of the utility model: During production and manufacturing, the cast iron pipe body 7 to be produced is hoisted onto the pipe body tray 12. After the forklift transports the pipe body tray 12, the cast iron pipe body 7, and the concrete outer wall 8 that has been produced in the previous group away, the next group of pipe body tray 12 and cast iron pipe body 7 are installed on the pipe body positioning disc 11 above the ground. Operate the demoulding hydraulic cylinder 9 to retract, driving the pipe body positioning disc 11, the pipe body tray 12, and the cast iron pipe body 7 to descend, so that the pipe body positioning disc 11 contacts the sealing rubber strip 15 of the mold 5. Put the mixed dry-hardened concrete into the pouring groove A between the mold 5 and the cast iron pipe body 7, and turn on the vibrator 6 to fully vibrate the dry-hardened concrete. While feeding the material, start the driving motor 3. The driving motor 3 has been programmed to automatically run back and forth, driving the mold 5 to rotate in a small range in both forward and reverse directions. Rotating the mold in both forward and reverse directions can facilitate demoulding of the mold and at the same time can smooth the outer surface of the poured concrete. Operate the pressure plate lifting hydraulic cylinder 14 to descend, driving the concrete pressure plate 13 to descend through the pressure plate lifting hydraulic cylinder 14 to further compact the dry-hardened concrete. As the dry-hardened concrete is continuously filled, the surface of the concrete gradually rises to a predetermined height, thereby forming a new concrete outer wall 8. When the vibration timer reaches the preset time, the vibrator 6 and the driving motor 3 automatically stop running, and the pressure plate lifting hydraulic cylinder 14 automatically rises to the avoidance position. The maximum oil pressure of the pressure plate lifting hydraulic cylinder 14 has been set in advance. Manually operate the demoulding hydraulic cylinder 9 to rise, driving the pipe body tray 12, the cast iron pipe body 7, and the concrete outer wall 8 to rise to the ground separation position. The forklift lifts the pipe body tray 12, the cast iron pipe body 7, and the concrete outer wall 8 to the natural curing site. Repeat the above operations to start the cycle of producing the next pipe. Among them, the main structure of this equipment can be set underground to facilitate construction and the operation of the forklift, while the pressure plate mechanism is located on the ground.

[0035] The above is only used to illustrate the technical solution of the utility model and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the utility model, as long as they do not depart from the spirit and scope of the technical solution of the utility model, should be covered within the scope of the claims of the utility model.

Claims

1. A ductile iron top pipe outer wall rapid prototyping production equipment, characterized in that: The invention comprises a chassis (1), a motor base (2) and a demoulding hydraulic cylinder (9) are mounted on the chassis (1), a driving motor (3) is mounted on the motor base (2), a driving gear (4) is arranged at the output end of the driving motor (3), and the driving gear (4) is meshed with the side of a mold (5), the lower part of the mold (5) is arranged on the chassis (1), a vibrator (6) is mounted on the outer wall of the mold (5), the demoulding hydraulic cylinder (9) is located in the middle part above the chassis (1), and a tube body positioning plate (11) is mounted on the top of the demoulding hydraulic cylinder (9), a tube body tray (12) is arranged on the tube body positioning plate (11), the side above the tube body tray (12) is in contact with the bottom of the cast iron tube body (7), and a pressure plate mechanism is arranged above the cast iron tube body (7).

2. The ductile iron top pipe outer wall rapid prototyping production equipment according to claim 1, characterized in that: A mold rotary support (10) is provided between the chassis (1) and the mold (5), and the mold rotary support (10) and the chassis (1) are in rolling cooperation.

3. The rapid prototyping production equipment for the outer wall of a ductile iron top pipe according to claim 1, characterized in that: A plurality of vibrators (6) are provided and are distributed on the outer wall of the mold (5).

4. The ductile iron top pipe outer wall rapid prototyping production equipment according to claim 2, characterized in that: The pressure plate mechanism comprises a concrete pressure plate (13) and a pressure plate lifting hydraulic cylinder (14), and the bottom of the pressure plate lifting hydraulic cylinder (14) is provided with a concrete pressure plate (13).

5. The ductile iron top pipe outer wall rapid prototyping production equipment according to claim 1, characterized in that: A casting groove (A) is left between the mold (5) and the cast iron pipe body (7), and the concrete pressure plate (13) and the casting groove (A) cooperate with each other.

6. The ductile iron top pipe outer wall rapid prototyping production equipment according to claim 1, characterized in that: The bottom of the tube body tray (12) is provided with a positioning base (12A) for positioning its tube body positioning plate (11), and the side of the tube body tray (12) is protruding to form a side platform (12B) for facilitating forklift transportation and supporting the cast iron tube body (7).

7. The ductile iron top pipe outer wall rapid prototyping production equipment according to claim 1, characterized in that: A plurality of sealing strips (15) are provided between the mold (5) and the tube body tray (12).

8. The ductile iron top pipe outer wall rapid prototyping production equipment according to claim 1, characterized in that: The periphery of the bottom end of the mold (5) is provided with a gear ring that meshes with the driving gear (4), and meshes with the driving gear (4) through the gear ring.

9. The rapid prototyping production equipment for the outer wall of a ductile iron top pipe according to claim 4, characterized in that: The concrete pressing plate (13), the mold rotary support (10), the pipe body positioning plate (11), the pipe body tray (12) and the demoulding hydraulic cylinder (9) are all coaxially arranged.

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