Folding mechanism for bricklaying formwork of rotary cement kiln

Abstract

The invention relates to a rotary cement kiln bricklaying formwork folding mechanism which comprises a rotary cement kiln bricklaying formwork folding body structure and a brick body pressing air cylinder assembly arranged in the rotary cement kiln bricklaying formwork folding body structure, and the brick body pressing air cylinder assembly comprises a bricklaying face jacking air cylinder structure and a brick pressing side jacking air cylinder structure. The masonry face main positioning and jacking electric cylinder structure is arranged in a main positioning and jacking electric cylinder positioning groove base structure in the side wing bearing frame body, and the lower end face brick jacking electric cylinder structure is arranged in a lower end face jacking electric cylinder positioning frame body structure at the lower end of the center bearing frame body. The rotary cement kiln bricklaying formwork folding mechanism has the beneficial effects that the folding-unfolding self-adaptive design of the rotary cement kiln bricklaying formwork folding mechanism adopts a two-degree-of-freedom folding joint structure, the size is reduced by 60% after folding, and a rigid annular formwork is formed after unfolding. And a main positioning and jacking electric cylinder positioning groove seat structure and a lower end face jacking electric cylinder positioning frame body structure which are arranged on the electric cylinder body serve as a double fixing mode of cylinder body embedding, so that stable use is ensured.

Description

Technical Field

[0001] The invention relates to an injection mold, in particular to a folding mechanism for a cement rotary kiln bricklaying mold frame. Background Art

[0002] 1. Deficiencies of traditional bricklaying technology

[0003] The construction of the inner lining of the cylinder has long relied on manual labor, resulting in low efficiency, poor precision, and high labor intensity. Existing mechanical auxiliary equipment uses a fixed formwork, which is bulky and unable to adapt to the narrow space inside the cylinder. Furthermore, after the formwork is deployed, it is difficult to dynamically adjust the concentricity with the cylinder, resulting in uneven brick joints and affecting the quality of the masonry.

[0004] 2. Limitations of existing folding mechanisms

[0005] The disclosed technology proposes a folding support frame, but it only allows for simple opening and closing and lacks adaptive adjustment capabilities for the varying diameters of the cylinder. Furthermore, the existing mechanism relies on a single hydraulic cylinder to compress the refractory bricks, resulting in uneven pressure distribution that can easily damage the bricks and prevents precise insertion of the sealing plate.

[0006] 3. Industry demand

[0007] There is an urgent need for a mold base mechanism with the following characteristics:

[0008] Folding and storage: The volume of the mechanism in the free state is ≤ the cylinder inlet diameter, making it easy for the entire machine to enter the kiln; Dynamic concentric adjustment: In the working state, the mold frame can be quickly unfolded into a circle with a diameter slightly smaller than the inner diameter of the cylinder, and automatically calibrated to align with the central axis of the cylinder; High-precision pressing: Synchronous pressure is applied at multiple points to avoid brick deviation or breakage; Sealing adaptability: Supports brick type ratio calculation and sealing plate embedding to eliminate circumferential gaps.

[0009] 4. Connection of various components

[0010] The cylinder of the existing bricklaying formwork folding mechanism is unstable to install, and the uneven pressure distribution can easily lead to damage to the brick body and reduce the service life of the assembly. Summary of the Invention

[0011] The purpose of the present invention is to provide a folding mechanism for a cement rotary kiln bricklaying formwork frame, which solves the above-mentioned shortcomings of the folding mechanism for the bricklaying formwork frame.

[0012] The technical solution adopted by the present invention to solve its technical problems is: a cement rotary kiln bricklaying formwork folding mechanism, including a cement rotary kiln bricklaying formwork folding body structure and a brick body pressing cylinder assembly arranged in the cement rotary kiln bricklaying formwork folding body structure, the brick body pressing cylinder assembly includes a masonry surface tightening cylinder structure and a brick pressing side cylinder structure, the cement rotary kiln bricklaying formwork folding body structure includes a central bearing frame and side wing bearing frames arranged at both ends of the central bearing frame, the masonry surface tightening cylinder structure includes a masonry surface main positioning tightening electric cylinder structure, a side end arc surface top brick electric cylinder structure and a lower end surface top brick electric cylinder structure, the masonry surface main positioning tightening electric cylinder structure is arranged in the main positioning tightening electric cylinder positioning slot seat structure in the side wing bearing frame, and the lower end surface top brick electric cylinder structure is arranged in the lower end surface tightening electric cylinder positioning frame structure at the lower end of the central bearing frame.

[0013] The main positioning and tightening electric cylinder positioning groove seat structure includes a main positioning and tightening cylinder body positioning seat, an installation and positioning component of the main positioning and tightening cylinder body arranged in the main positioning and tightening cylinder body positioning seat, a top fixed bracket arranged on one side of the main positioning and tightening cylinder body positioning seat, and a cylinder body end fixing sleeve arranged on the other side of the main positioning and tightening cylinder body positioning seat.

[0014] The lower end surface tightening electric cylinder positioning frame structure includes a lower end cylinder mounting seat arranged at the lower end of the central supporting frame, a cylinder sleeve locking seat arranged in the middle of the lower end cylinder mounting seat, a group of mounting bottom fixing parts arranged at the side end of the lower end cylinder mounting seat, and an extended stable assembly bracket arranged in the mounting bottom fixing parts.

[0015] The brick pressing side pushing cylinder structure includes a telescopic control seat, a two-way cylinder connecting frame arranged on the upper part of the telescopic control seat, and a two-way tightening cylinder arranged on the upper part of the two-way cylinder connecting frame. A brick pushing matching body is provided at the output end of the two-way tightening cylinder. The brick pushing matching body includes a brick body pressing block of the two-way tightening cylinder and a movable pressing body arranged in the brick body pressing block.

[0016] The side end arc surface top brick electric cylinder structure includes a masonry surface main connecting frame structure, a masonry surface tightening cylinder arranged in the masonry surface main connecting frame structure, and an arc surface pressure plate structure arranged in the masonry surface tightening cylinder. The arc surface pressure plate structure includes a top pressing arc plate body and a brick body connection embossing arranged on the upper part of the top pressing arc plate body.

[0017] Beneficial Effects: The folding mechanism of this cement rotary kiln bricklaying formwork features an adaptive folding and unfolding design with two degrees of freedom. This reduces the formwork volume by 60% when folded and forms a rigid, ring-shaped formwork when unfolded. Integrated laser positioning and PLC feedback control enable millimeter-level concentricity adjustment. The pneumatic cylinder (constant pressure) and electric cylinder (precise displacement) work together to prevent overpressure damage to the bricks. The electric cylinder body is equipped with a main positioning and tightening cylinder positioning slot structure and a lower end surface tightening cylinder positioning frame structure as a dual fixing method for the cylinder body, ensuring stable operation.

[0018] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a layout diagram of the positioning groove seat structure of the main positioning and tightening electric cylinder implemented in the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the main positioning and tightening electric cylinder positioning groove seat structure of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the lower end surface tightening electric cylinder positioning frame structure of the present invention.

[0023] Figure 5 This is a layout diagram of the lower end surface tightening electric cylinder positioning frame structure implemented in the present invention.

[0024] Figure 6 This is a schematic diagram of the structure of the side-top cylinder structure of the medium-pressure brick of the present invention.

[0025] Figure 7 This is a schematic diagram of the structure of the main positioning and tightening electric cylinder structure for the masonry surface in the present invention.

[0026] Figure 8 This is a schematic diagram of the structure of the lower end face brick-lifting electric cylinder of the present invention.

[0027] In the figure: 1. Center bearing frame, 2. Side bearing frame, 3. Main positioning and tightening cylinder positioning seat, 4. Installation positioning assembly, 5. Top fixing bracket, 6. Cylinder end fixing sleeve, 7. Lower end cylinder mounting seat, 8. Cylinder sleeve locking seat, 9. Installation bottom fixing part, 10. Extension stabilization assembly bracket, 11. Telescopic control seat, 12. Two-way cylinder connecting frame, 13. Two-way tightening cylinder, 14. Brick pressing block, 15. Movable pressing body, 16. Masonry surface main connecting frame structure, 17. Masonry surface tightening cylinder, 18. Pressing arc plate, 19. Brick connection embossing, 20. Folding electric cylinder, 21. Side end arc surface top brick electric cylinder structure, 22. Lower end surface top arc plate, 23. Lower end surface top brick electric cylinder body. DETAILED DESCRIPTION

[0028] The terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end" used in this application to indicate positions or locations are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0030] Example 1, as Figure 1-5 As shown, a cement rotary kiln bricklaying formwork folding mechanism includes a cement rotary kiln bricklaying formwork folding body structure and a brick body pressing cylinder assembly arranged in the cement rotary kiln bricklaying formwork folding body structure, the brick body pressing cylinder assembly includes a masonry surface pressing cylinder structure and a brick pressing side pressing cylinder structure, the cement rotary kiln bricklaying formwork folding body structure includes a central supporting frame 1 and side wing supporting frames 2 arranged at both ends of the central supporting frame, and the side wing supporting frames 2 are folded by a folding electric cylinder 20 in the central supporting frame 1.

[0031] The masonry surface tightening cylinder structure includes the masonry surface main positioning tightening electric cylinder structure, the side end arc surface top brick electric cylinder structure 21 and the lower end surface top brick electric cylinder structure. The lower end surface top brick electric cylinder structure includes the lower end surface top pressure arc plate 22 and the lower end surface top brick electric cylinder body 23 connected to the lower end surface top pressure arc plate.

[0032] The main positioning and tightening electric cylinder structure of the masonry surface is arranged in the main positioning and tightening electric cylinder positioning slot seat structure in the side bearing frame, and the lower end face top brick electric cylinder structure is arranged in the lower end face tightening electric cylinder positioning frame structure at the lower end of the central bearing frame.

[0033] The main positioning and tightening electric cylinder positioning groove seat structure includes a main positioning and tightening cylinder body positioning seat 3, a main positioning and tightening cylinder body installation positioning component 4 arranged in the main positioning and tightening cylinder body positioning seat, a top fixed bracket 5 arranged on one side of the main positioning and tightening cylinder body positioning seat, and a cylinder body end fixing sleeve 6 arranged on the other side of the main positioning and tightening cylinder body positioning seat.

[0034] The lower end face tightening electric cylinder positioning frame structure includes a lower end cylinder mounting seat 7 arranged at the lower end of the central supporting frame, a cylinder sleeve locking seat 8 arranged in the middle of the lower end cylinder mounting seat, a group of mounting bottom fixing parts 9 arranged at the side end of the lower end cylinder mounting seat, and an extended stable assembly bracket 10 arranged in the mounting bottom fixing part.

[0035] Example 2, as Figure 6-8 As shown, the brick pressing side cylinder structure includes a telescopic control seat 11, a two-way cylinder connecting frame 12 arranged on the upper part of the telescopic control seat, and a two-way tightening cylinder 13 arranged on the upper part of the two-way cylinder connecting frame. A brick pressing matching body is provided at the output end of the two-way tightening cylinder. The brick pressing matching body includes a brick body pressing block 14 of the two-way tightening cylinder and a movable pressing body 15 arranged in the brick body pressing block.

[0036] The main positioning and tightening electric cylinder structure of the masonry surface includes a masonry surface main connecting frame structure 16, a masonry surface tightening cylinder 17 arranged in the masonry surface main connecting frame structure, and an arc-shaped surface pressure plate structure arranged on the masonry surface tightening cylinder. The arc-shaped surface pressure plate structure includes a pressing arc-shaped plate body 18 and a brick body connection embossing 19 arranged on the upper part of the pressing arc-shaped plate body.

[0037] 1. In use

[0038] 1. Initial positioning: The whole machine enters the cylinder through the walking mechanism, and the mold frame is in a folded state;

[0039] 2. Formwork expansion: The electric push rod is activated to drive the articulated connecting rod to expand into a ring structure. The laser rangefinder scans the inner wall of the cylinder to generate point cloud data. The PLC calculates the center offset of the formwork and adjusts the cross truss telescopic arm.

[0040] 3. Brick pressing: The brick feeding mechanism sends the refractory bricks to the preset slots on the mold frame. After the cylinder / electric cylinder pushes them to the surface of the brick, the cylinder applies pressure. The feedback value of the pressure sensor is stable within the range of ±5% and is considered qualified.

[0041] 4. Sealing operation: When the masonry reaches the last ring, the system generates the size of the sealing plate according to the remaining gap width. The pneumatic push rod pushes the sealing plate into the gap and injects refractory glue to seal it.

[0042] 2. Workflow

[0043] 1. Folding entry: After the mold frame is folded, the overall height is ≤2.0m, and it is carried into the rotary kiln by the traveling mechanism;

[0044] 2. Expanding and positioning: The drive device expands the connecting rod system to form a circular mold frame, the laser rangefinder scans the inner wall of the cylinder, and the PLC calculates the center offset and adjusts the expansion and contraction of the cross truss;

[0045] 3. Masonry stage: The rotary brick feeding mechanism transports the refractory bricks to the preset position of the formwork, the cylinder-electric cylinder composite unit extends and presses the bricks, and the pressure sensor ensures uniform pressure;

[0046] 4. Symmetrical masonry: The left and right sides work synchronously. After every 6 to 12 bricks are completed, the formwork rotates a certain angle (achieved by the servo motor driving the gear meshing);

[0047] 5. Sealing treatment: When the last ring is laid, the PLC calculates the size of the sealing plate according to the brick ratio, the clamping mechanism is embedded in the sealing plate and refractory glue is injected to fill the gap.

[0048] 3. During construction

[0049] The folded formwork, in its transport state, passes along the rotary kiln axis and enters the designated position. The electric push rods are activated to unfold each folding unit to the set diameter. After a laser rangefinder verifies that the circumferential accuracy error is ≤2mm, the hinge positioning pins are locked. When the bricklaying machine delivers the refractory bricks to the set angle, the pneumatic / electric cylinder at that position applies a constant force to maintain support. During this process, the pressure sensor provides real-time feedback, and the control system automatically compensates for pressure deviations caused by the cylinder's ovality.

[0050] The folding mechanism of this cement rotary kiln bricklaying formwork features an adaptive folding and unfolding design with two degrees of freedom. This reduces the formwork's volume by 60% when folded, forming a rigid, ring-shaped formwork when unfolded. Integrated laser positioning and PLC feedback control enable millimeter-level concentricity adjustment. The pneumatic cylinder (constant pressure) and electric cylinder (precise displacement) work together to prevent overpressure damage to the bricks. The electric cylinder body incorporates a main positioning and tightening cylinder positioning slot structure, as well as a lower end surface tightening cylinder positioning frame structure, providing dual fixing for the cylinder body, ensuring stable operation.

[0051] The above embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineers and technicians in this field should fall within the scope of protection determined by the claims of the present invention.

[0052] The parts not involved in the present invention are the same as the existing technology or can be implemented by using the existing technology.

Claims

1. A cement rotary kiln bricklaying formwork folding mechanism, comprising a cement rotary kiln bricklaying formwork folding structure and a brick pressing cylinder assembly disposed in the cement rotary kiln bricklaying formwork folding structure, wherein the brick pressing cylinder assembly comprises a masonry surface tightening cylinder structure and a brick pressing side pressing cylinder structure, the cement rotary kiln bricklaying formwork folding structure comprising a central bearing frame and wing bearing frames disposed at both ends of the central bearing frame, the masonry surface tightening cylinder structure comprising a masonry surface main positioning tightening electric cylinder structure, a side end arc surface pressing brick electric cylinder structure, and a lower end surface pressing brick electric cylinder structure, characterized in that: The main positioning and tightening electric cylinder structure of the masonry surface is arranged in the main positioning and tightening electric cylinder positioning slot seat structure in the side bearing frame, and the lower end face top brick electric cylinder structure is arranged in the lower end face tightening electric cylinder positioning frame structure at the lower end of the central bearing frame.

2. The cylinder assembly of the folding mechanism for the bricklaying formwork of a cement rotary kiln according to claim 1, characterized in that: The main positioning and tightening electric cylinder positioning groove seat structure includes a main positioning and tightening cylinder body positioning seat, an installation and positioning component of the main positioning and tightening cylinder body arranged in the main positioning and tightening cylinder body positioning seat, a top fixed bracket arranged on one side of the main positioning and tightening cylinder body positioning seat, and a cylinder body end fixing sleeve arranged on the other side of the main positioning and tightening cylinder body positioning seat.

3. The cylinder assembly of the folding mechanism for the bricklaying formwork of a cement rotary kiln according to claim 1, characterized in that: The lower end surface tightening electric cylinder positioning frame structure includes a lower end cylinder mounting seat arranged at the lower end of the central supporting frame, a cylinder sleeve locking seat arranged in the middle of the lower end cylinder mounting seat, a group of mounting bottom fixing parts arranged at the side end of the lower end cylinder mounting seat, and an extended stable assembly bracket arranged in the mounting bottom fixing parts.

4. The cylinder assembly of the folding mechanism for the bricklaying formwork of a cement rotary kiln according to claim 1, characterized in that: The brick pressing side pushing cylinder structure includes a telescopic control seat, a two-way cylinder connecting frame arranged on the upper part of the telescopic control seat, and a two-way tightening cylinder arranged on the upper part of the two-way cylinder connecting frame. A brick pushing matching body is provided at the output end of the two-way tightening cylinder. The brick pushing matching body includes a brick body pressing block of the two-way tightening cylinder and a movable pressing body arranged in the brick body pressing block.

5. The cylinder assembly of the folding mechanism for the bricklaying formwork of a cement rotary kiln according to claim 1, characterized in that: The main positioning and tightening electric cylinder structure of the masonry surface includes a masonry surface main connecting frame structure, a masonry surface tightening cylinder arranged in the masonry surface main connecting frame structure, and an arc-shaped surface pressure plate structure arranged in the masonry surface tightening cylinder. The arc-shaped surface pressure plate structure includes a pressing arc-shaped plate body and a brick connection embossing arranged on the upper part of the pressing arc-shaped plate body.

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