CN116551836B

CN116551836B - Cement mixture forming device

Info

Publication number: CN116551836B
Application number: CN202310844411.8A
Authority: CN
Inventors: 魏金羊; 吴小武; 赵有锋; 蒋志伟; 潘存杰; 罗红义; 刘凯文; 史文龙
Original assignee: Gansu Yian Construction Technology Group Co ltd
Current assignee: Gansu Yian Construction Technology Group Co ltd
Priority date: 2023-07-11
Filing date: 2023-07-11
Publication date: 2023-09-22
Anticipated expiration: 2043-07-11
Also published as: CN116551836A

Abstract

The invention relates to the field of cement mixture forming, in particular to a cement mixture forming tool, which comprises a first surface table; the shaft rods are arranged on the surface of the first surface table in a rotating mode, at least three shaft rods which are distributed in parallel are arranged on the surface of the first surface table in a rotating mode, the shaft rods are distributed evenly, and the shaft rods expand and support the die pipe from the inner side; the injection pipe penetrates through the first surface table to the inside of the die pipe and is used for conveying the cement mixture into the die pipe; the first motor is connected with one shaft lever through a gear set in a transmission way and is used for driving the shaft lever and the die tube to rotate; the holding assembly is used for bearing one end of the shaft rod far away from the first surface table, and the mold tube is expanded, fixed and released in a gathering way through at least three shaft rods which expand and gather synchronously, so that the mold tube has at least three supporting points in the rotating process, and the molding quality and efficiency of the cement tube are improved.

Description

Cement mixture forming device

Technical Field

The invention relates to the field of cement mixture forming, in particular to a cement mixture forming tool.

Background

The cement pipe is also called cement pressure pipe and reinforced concrete pipe, it can be used as sewer pipe in urban construction foundation, can drain sewage, flood prevention and drain water, and can be used in some special factories and mines as well as water supply pipe and farmland motor-pumped well, and its processing and forming mode is several, in which the centrifugal forming mode is most common, the tubular mould is rotated, cement paste is added into its inner cavity, and under the action of centrifugal force the cement paste is uniformly distributed on the inner wall of mould so as to finally form cement pipe.

Traditional cement pipe centrifugal forming equipment hangs tubular mould through the unipolar to drive the mould is rotatory, though makes its ability axle rotatory under mould and cement material gravity effect, but adds the cement mixture at high-speed rotatory in-process, and the mould appears the shake easily, causes cement pipe shaping inefficiency, and cement pipe shaping quality has the flaw moreover.

Disclosure of Invention

The invention aims to solve the following problems in the prior art: the cement mixture is added in the high-speed rotation process, the mold is easy to shake, the cement pipe forming efficiency is low, and the cement pipe forming quality has flaws.

In order to solve the problems existing in the prior art, the invention provides a cement mixture forming tool, which comprises a first surface table;

the shaft rods are arranged on the surface of the first surface table in a rotating mode, at least three groups of shaft rods which are distributed in parallel are arranged on the surface of the first surface table in a rotating mode, the shaft rods are distributed evenly, and the shaft rods expand and support the die pipe from the inner side;

the injection pipe penetrates through the first surface table to the inside of the die pipe and is used for conveying the cement mixture into the die pipe;

the first motor is connected with one shaft lever through a gear set in a transmission way and is used for driving the shaft lever and the die tube to rotate;

a retaining assembly for carrying an end of the shaft remote from the first panel;

the pressure sensing device is connected with the shaft lever;

the surface of the first surface table is uniformly provided with a plurality of first sliding grooves, first sliding blocks are arranged in the first sliding grooves in a sliding manner, the shaft rods are in one-to-one corresponding rotation connection with the first sliding blocks, so that the shaft rods can slide along the first sliding grooves to be close to or expand, and the shaft rods are connected with first hydraulic cylinders and used for driving the first sliding blocks to slide synchronously;

the holding assembly comprises a second surface table parallel to the first surface table, the second surface table linearly slides along the sliding rail to be close to or far away from the first surface table, a screw rod penetrates through threads of the second surface table, the screw rod is parallel to the sliding rail, a second motor is connected to the end part of the screw rod, a plurality of second sliding grooves are uniformly formed in the surface of the second surface table, a second sliding block is arranged in the second sliding grooves in a sliding mode, the second sliding block is connected with a second hydraulic cylinder and used for driving the second sliding block to keep synchronous movement with the first sliding block, and a hole for penetrating through the end part of the shaft rod is formed in the surface of the second sliding block.

Preferably, a carrier plate is fixed on one side of the bottom of the second surface table, which is close to the first surface table, and carrier shafts are symmetrically arranged on the surface of the carrier plate.

Preferably, the two ends of the shaft rod are provided with ring grooves with reduced diameters, the inner sides of the two end ports of the die pipe are provided with inner ring edges, and the inner ring edges are clamped into the ring grooves.

Preferably, the shaft lever comprises a mandrel, an air cavity is formed in the mandrel, a rubber tube is arranged on the outer sealing sleeve of the mandrel, a through hole penetrating through the air cavity and the rubber tube is formed in the surface of the mandrel, one end of the mandrel is rotationally connected with a pipeline, the air cavity is connected with a pressure sensing device through the pipeline, and the pressure sensing device is electrically connected with a loudspeaker.

Preferably, the pressure sensing device comprises a valve pipe, a valve block is installed in the valve pipe through spring adaptation, a through hole is formed in the bottom of the valve pipe, the through hole is communicated with the air cavity through a pipeline, a micro switch is arranged above the valve block, and the micro switch is electrically connected with the loudspeaker.

Preferably, the screw thread at the top of the valve pipe penetrates through the stud, and the micro switch is arranged at the bottom of the stud.

Preferably, the through hole is connected with an air pump and an air outlet, and a valve and an air pressure gauge are arranged at the position of the air outlet.

Compared with the related art, the cement mixture forming tool provided by the invention has the following beneficial effects:

1. according to the invention, at least three groups of synchronously expanding and gathering shaft rods are used for expanding, fixing and gathering the mould pipe and releasing the mould pipe, so that the mould pipe has at least three supporting points in the rotating process, and the forming quality and efficiency of the cement pipe are improved;

2. the invention adopts the expanded rubber tube to contact the inner wall of the formed cement tube, is used for promoting the leveling of the inner wall of the formed cement tube, and ensures that the air pressure in the rubber tube is changed by extruding the cement tube, thereby being used for monitoring the forming thickness of the cement tube and being convenient for controlling the material injection quantity.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a second schematic diagram of the overall structure of the present invention;

FIG. 3 is a schematic view of a first stage alignment second stage structure according to the present invention;

FIG. 4 is a schematic view of a contact structure between a shaft and a mold tube according to the present invention;

FIG. 5 is a schematic view of a retaining assembly of the present invention;

FIG. 6 is a schematic view of a shaft connection pressure sensing device according to the present invention;

FIG. 7 is a schematic diagram of the air pump connection pressure sensing apparatus of the present invention;

FIG. 8 is a schematic view of a shaft structure of the present invention;

fig. 9 is a schematic structural diagram of a pressure sensing device according to the present invention.

Reference numerals in the drawings: 1. a first surface table; 11. a first hydraulic cylinder; 12. a first chute; 13. a first slider; 14. a material injection pipe; 2. a second surface table; 21. a second hydraulic cylinder; 22. a second chute; 23. a second slider; 24. a carrier plate; 25. a carrier shaft; 26. a slide rail; 27. a screw rod; 28. a second motor; 3. a die tube; 31. an inner ring edge; 4. a first motor; 5. a shaft lever; 51. a mandrel; 52. a ring groove; 53. a rubber tube; 54. a through hole; 55. an air cavity; 6. a pressure sensing device; 61. a valve tube; 62. a through port; 63. a valve block; 64. a stud; 65. a micro-switch; 7. an air pump; 8. and a speaker.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Specific implementations of the invention are described in detail below in connection with specific embodiments.

Example 1

As shown in fig. 1-9, the invention provides a cement mixture forming device, which comprises a first surface table 1, wherein three groups of shaft rods 5 which are distributed in parallel are rotationally arranged on the surface of the first surface table 1, the shaft rods 5 are uniformly distributed, a material injection pipe 14 penetrates through the first surface table 1, and a first motor 4 is connected with one of the shaft rods 5 through a gear set in a transmission way;

the two ends of the shaft lever 5 are provided with ring grooves 52 with reduced diameters, and the inner sides of the two ends of the die pipe 3 are provided with inner ring edges 31;

the mold tube 3 is sleeved outside the three groups of shaft rods 5, the inner ring edge 31 is clamped into the annular groove 52, the mold tube 3 is axially limited, the inner wall of the mold tube 3 and the three shaft rods 5 have larger friction force due to the fact that the three shaft rods 5 expand and support the inside of the mold tube 3, the first motor 4 is started to drive one shaft rod 5 to rotate, the mold tube 3 is driven to gradually accelerate to rotate through the shaft rods 5 until the mold tube 3 rotates at a high speed around the outside of the three groups of shaft rods 5, the injection tube 14 penetrates into the mold tube 3, the injection tube 14 is connected with cement mixture supply equipment, cement mixture is led into the mold tube 3 through the injection tube 14, and the cement mixture gradually forms a pipeline with uniform thickness around the inner wall of the mold tube 3 under the action of centrifugal force;

the cement mixture introduced from the injection pipe 14 adheres to the surfaces of the three shaft rods 5, but the rotation speed of the shaft rods 5 is high, so that the cement mixture adhered to the surfaces of the shaft rods 5 is separated from the surfaces of the shaft rods 5 under the action of high-speed centrifugal force, and the surfaces of the shaft rods 5 are kept relatively clean.

Example 2

As shown in fig. 1-9, a plurality of first sliding grooves 12 are uniformly formed in the surface of the first surface table 1, first sliding blocks 13 are slidably arranged in the first sliding grooves 12, the shaft rods 5 are in one-to-one corresponding rotation connection with the first sliding blocks 13, so that the shaft rods 5 can slide close or expand along the first sliding grooves 12, three groups of first hydraulic cylinders 11 are arranged at the edge of the first surface table 1, and the first hydraulic cylinders 11 penetrate into the first sliding grooves 12 and are connected with the first sliding blocks 13;

in the initial state, the three groups of shaft rods 5 are in a furled state, when the die pipe 3 is covered outside the shaft rods 5, the three groups of first hydraulic cylinders 11 are started to synchronously shrink, so that the three first sliding blocks 13 slide along the first sliding grooves 12, the three groups of shaft rods 5 expand and support the die pipe 3, the die pipe 3 is conveniently sleeved and installed, and the die pipe 3 with different diameters can be adapted to fixing;

the holding assembly comprises a second surface table 2 parallel to the first surface table 1, the second surface table 2 slides along a sliding rail 26 to be close to or far away from the first surface table 1, a screw rod 27 penetrates through threads of the second surface table 2, the screw rod 27 is parallel to the sliding rail 26, the end part of the screw rod 27 is connected with a second motor 28, a plurality of second sliding grooves 22 are uniformly formed in the surface of the second surface table 2, a second sliding block 23 is slidably arranged in the second sliding grooves 22, the second sliding block 23 is connected with a second hydraulic cylinder 21 and used for driving the second sliding block 23 to keep synchronous movement with the first sliding block 13, and a hole for penetrating the end part of the shaft lever 5 is formed in the surface of the second sliding block 23;

the second hydraulic cylinder 21 and the first hydraulic cylinder 11 synchronously move, so that the second sliding block 23 always keeps alignment with the first sliding block 13, the die pipe 3 is sleeved outside in a state that three groups of shaft rods 5 are folded, the screw rod 27 is driven to rotate by the second motor 28, the second surface table 2 is driven by the screw rod 27 to approach the first surface table 1 along the sliding rail 26, the end part of the shaft rod 5 is inserted into a hole on the surface of the second sliding block 23 and used for supporting the shaft rod 5, the first sliding block 13 and the second sliding block 23 are driven by the second hydraulic cylinder 21 and the first hydraulic cylinder 11 to drive the shaft rod 5 to expand and support the die pipe 3, the shaft rod 5 is enabled to stably operate, the three groups of shaft rods 5 are contracted firstly after the cement pipe is molded, the second surface table 2 is moved, and the die pipe 3 is removed.

One side that second face platform 2 bottom is close to first face platform 1 is fixed with carrier plate 24, and carrier plate 24 surface symmetry installs carrier shaft 25, places mould pipe 3 on carrier shaft 25 surface, follows second face platform 2 and bears mould pipe 3 and be close to first face platform 1, and convenient material loading, after the cement pipe shaping, shrink axostylus axostyle 5 earlier, make mould pipe 3 fall on carrier shaft 25 surface, drive second face platform 2 again and drive mould pipe 3 and slide and keep away from first face platform 1 and axostylus axostyle 5, conveniently take off mould pipe 3.

Example 3

As shown in fig. 1-9, the shaft lever 5 comprises a mandrel 51, an air cavity 55 is formed in the mandrel 51, a rubber tube 53 is sealed and sleeved outside the mandrel 51, a through hole 54 penetrating through the air cavity 55 and the rubber tube 53 is formed in the surface of the mandrel 51, one end of the mandrel 51 is rotationally connected with a pipeline, the air cavity 55 is connected with a pressure sensing device 6 through the pipeline, and the pressure sensing device 6 is electrically connected with a loudspeaker 8;

the pressure sensing device 6 comprises a valve pipe 61, a valve block 63 is mounted in the valve pipe 61 through spring fit, a through hole 62 is formed in the bottom of the valve pipe 61, the through hole 62 is communicated with the air cavity 55 through a pipeline, a micro switch 65 is arranged above the valve block 63, and the micro switch 65 is electrically connected with the loudspeaker 8;

the top thread of the valve tube 61 is penetrated with a stud 64, and the micro switch 65 is arranged at the bottom of the stud 64;

the through port 62 is connected with an air pump 7 and an air outlet, and a valve and an air pressure gauge are arranged at the position of the air outlet;

the rubber tube 53 is inflated through the air pump 7, the rubber tube 53 is inflated to a certain extent, the thickness of the cement tube is gradually increased in the gradual molding process of the cement tube, the gap between the rubber tube 53 and the inner wall of the cement tube is gradually reduced until the rubber tube 53 contacts and extrudes the cement tube, the inner wall of the cement tube is smoothed, meanwhile, when the thickness of the cement tube is increased, the extrusion strength of the rubber tube 53 is increased, the air pressure in the valve tube 61 is the same as the air pressure in the rubber tube 53, the air pressure pushes the valve block 63 to gradually overcome the elasticity and rise until the valve block 63 is in touch control with the micro switch 65, the loudspeaker 8 is started to give an alarm, the injection of the injection tube 14 is prompted, the injection should be stopped immediately, and the molded cement tube is uniform in quality at the moment;

according to the different material injecting thickness of the cement pipe, the alarm position can be adjusted, the micro switch 65 is driven to move up and down by rotating the stud 64, the movable range of the valve block 63 under the action of air pressure is changed, and the thickness size of the cement pipe during alarm is changed.

Claims

1. A cement mixture forming tool, comprising: a first surface table (1); the surface of the first surface table (1) is provided with at least three parallel shaft rods (5) in a rotating mode, the shaft rods (5) are uniformly distributed, and the shaft rods (5) expand and support the die pipe (3) from the inner side; a filling pipe (14), wherein the filling pipe (14) penetrates through the first surface table (1) to the inside of the mould pipe (3) and is used for conveying the cement mixture into the inside of the mould pipe (3); the first motor (4) is connected with one shaft lever (5) through a gear set transmission and is used for driving the shaft lever (5) and the die tube (3) to rotate; a holding assembly for carrying an end of the shaft (5) remote from the first table (1); the pressure sensing device (6), the pressure sensing device (6) is connected with the shaft lever (5);

a plurality of first sliding grooves (12) are uniformly formed in the surface of the first surface table (1), first sliding blocks (13) are arranged in the first sliding grooves (12) in a sliding mode, the shaft rods (5) are connected with the first sliding blocks (13) in a one-to-one corresponding rotating mode, so that the shaft rods (5) can slide close to or expand along the first sliding grooves (12), and the shaft rods (5) are connected with first hydraulic cylinders (11) and used for driving the first sliding blocks (13) to slide synchronously;

the holding assembly comprises a second surface table (2) parallel to the first surface table (1), the second surface table (2) slides along a sliding rail (26) to be close to or far away from the first surface table (1), a screw rod (27) penetrates through threads of the second surface table (2), the screw rod (27) is parallel to the sliding rail (26), a second motor (28) is connected to the end part of the screw rod (27), a plurality of second sliding grooves (22) are uniformly formed in the surface of the second surface table (2), a second sliding block (23) is arranged in the second sliding groove (22) in a sliding manner, a second hydraulic cylinder (21) is connected to the second sliding block (23) and used for driving the second sliding block (23) to move synchronously with the first sliding block (13), and holes for penetrating the end part of the shaft lever (5) are formed in the surface of the second sliding block (23);

the shaft lever (5) comprises a mandrel (51), an air cavity (55) is formed in the mandrel (51), a rubber tube (53) is sleeved outside the mandrel (51), a through hole (54) penetrating through the air cavity (55) and the rubber tube (53) is formed in the surface of the mandrel (51), one end of the mandrel (51) is connected with a pipeline in a rotating mode, the air cavity (55) is connected with a pressure sensing device (6) through the pipeline, and the pressure sensing device (6) is electrically connected with a loudspeaker (8);

the pressure sensing device (6) comprises a valve pipe (61), a valve block (63) is installed in the valve pipe (61) through spring adaptation, a through hole (62) is formed in the bottom of the valve pipe (61), the through hole (62) is communicated with the air cavity (55) through a pipeline, a micro switch (65) is arranged above the valve block (63), and the micro switch (65) is electrically connected with the loudspeaker (8).

2. Cement mixture forming apparatus according to claim 1, characterized in that a carrier plate (24) is fixed to the bottom of the second surface table (2) at a side close to the first surface table (1), and carrier shafts (25) are symmetrically mounted on the surface of the carrier plate (24).

3. Cement mixture forming apparatus according to claim 1, characterized in that the shaft (5) has reduced diameter ring grooves (52) at both ends, the inner side of the die pipe (3) at both ends has inner ring edges (31), and the inner ring edges (31) are snapped into the ring grooves (52).

4. Cement mixture forming apparatus according to claim 1, characterized in that the valve tube (61) is threaded through with a stud (64) at the top, the microswitch (65) being mounted at the bottom of the stud (64).

5. Cement mixture forming apparatus according to claim 4, characterized in that the through opening (62) is connected with an air pump (7) and an air outlet, where a valve and an air pressure gauge are arranged.