A cutting device for lightweight rock wool insulation board for construction

Abstract

The present invention relates to the technical field of cutting equipment for construction, and discloses a cutting device for lightweight rock wool insulation board for construction, comprising a main frame, a cutting disc group comprising a first cutting blade and two groups of second cutting blades movably sleeved on both sides thereof, the bottom ends of the two groups of second cutting blades are fixedly sleeved with a fixed frame through connecting pins, and the inner wall of the fixed frame is fixedly sleeved with a piezoelectric ring, and the inner wall of the piezoelectric ring is fixedly sleeved with a friction expansion ring. The lightweight rock wool insulation board cutting device for construction, for the setting of the linkage structure between the transmission main shaft and the second cutting blade, can form a set of feedback systems for the high-speed rotation of the first cutting blade, and gradually drive it to rotate at a high speed along with the output shaft of the driving motor, and the triggering of the entire action is triggered along with the starting of the driving motor, without the need for human participation or adjustment, and is simple to operate and highly controllable, thereby effectively improving the applicability and controllability of the electric circular saw.

Description

Technical Field

[0001] The invention relates to the technical field of building cutting equipment, in particular to a building lightweight rock wool insulation board cutting equipment. Background Art

[0002] Rock wool board is an inorganic fiberboard made of basalt as the main raw material through high-temperature melting. As a common building exterior wall thermal insulation material, in order to ensure its integrity and aesthetics in the process of use, the rock wool board often needs to be cut to adapt to the irregular wall at the edge;

[0003] Among them, the electric circular saw, as an efficient cutting tool, has the characteristics of safety, reliability, reasonable structure and high work efficiency. It can be effectively applied to the sawing operations of various fiberboards. However, due to the hardness of the rock wool board and the high structural strength, when using the electric circular saw to cut it, the high-speed rotating cutting blade will cause severe vibration impact to it at the moment of contact with the surface of the rock wool board, and cause a certain degree of impact damage to the inside of the cutting blade, which greatly affects the service life of the cutting blade. It may even cause the cutting blade to break and injure people due to the excessive load of vibration impact at the moment of contact, resulting in a large safety hazard during use, and poor stability and reliability.

[0004] Therefore, there is an urgent need for a cutting blade for an electric circular saw and a mounting structure thereof to solve the defects existing in the above-mentioned existing electric circular saws during actual use. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The present invention provides a lightweight rock wool insulation board cutting device for construction, which has the advantages of effectively reducing the vibration impact caused by the high-speed rotating cutting blade on the rock wool board at the moment of contact with the rock wool board, not affecting the service life of the cutting blade due to impact damage, and avoiding the cutting blade from breaking and injuring people due to excessive vibration impact load. It solves the problem that the high-speed rotating cutting blade on the existing electric circular saw will cause severe vibration impact to the surface of the rock wool board at the moment of contact with the cutting blade, and cause a certain degree of impact damage to the inside of the cutting blade, thereby greatly affecting the service life of the cutting blade, and even causing the cutting blade to break and injure people due to excessive vibration impact load at the moment of contact, resulting in a large safety hazard during use.

[0007] (II) Technical solution

[0008] The present invention provides the following technical solutions: a lightweight rock wool insulation board cutting device for construction, comprising a main frame, a driving motor is fixedly installed on one side of the middle part of the main frame, and the output shaft of the driving motor is transmission-connected with a cutting disc group, an electromagnetic mechanism fixedly connected to the main frame is provided at the top of the periphery of the cutting disc group, and at the same time, a certain overlapping area is provided between the inside of the electromagnetic mechanism and the top of the outer surface of the cutting disc group, the cutting disc group comprises a first cutting blade and two groups of second cutting blades movably sleeved on both sides thereof, the bottom ends of the two groups of second cutting blades are fixedly sleeved with a fixed frame through connecting pins, and a piezoelectric ring is fixedly sleeved on the inner wall of the fixed frame, a friction expansion ring is fixedly sleeved on the inner wall of the piezoelectric ring, a transmission main shaft is movably sleeved on the inner wall of the friction expansion ring, and a transmission connection is formed with the output shaft of the driving motor.

[0009] Preferably, a group of inner grooves are respectively provided on both sides of the middle part of the outer surface of the first cutting blade, and a sealed chamber can be formed between the first cutting blade and the two groups of second cutting blades, and the sealed chamber formed by the first cutting blade is filled with a full volume of magnetorheological fluid.

[0010] Preferably, the friction expansion ring is made of a memory alloy, and the fitting clearance between the inner wall of the friction expansion ring and the outer surface of the transmission main shaft is smaller than the thermal expansion of the friction expansion ring itself.

[0011] Preferably, the interior of the piezoelectric ring is electrically feedback-connected to the electromagnetic mechanism via a control system, and the pressure applied to the piezoelectric ring is directly proportional to the magnetic field generated by the electromagnetic mechanism.

[0012] Preferably, a rubber sleeve is fixedly connected to the outer surface of the transmission main shaft and the friction expansion ring, so as to increase the heat generated by the mutual friction between the transmission main shaft and the friction expansion ring, and form a buffer zone for the piezoelectric ring to effectively prevent it from being damaged due to excessive pressure.

[0013] (III) Beneficial effects

[0014] The present invention has the following beneficial effects:

[0015] 1. The lightweight rock wool insulation board cutting equipment for construction has a first cutting blade and a second cutting blade and a magnetorheological fluid filled therebetween, so that a flexible transmission connection can be formed therebetween, and a stable transmission connection can be achieved under specific circumstances under the action of an electromagnetic mechanism. Compared with the cutting blade installation structure on an existing electric circular saw, when cutting a rock wool board, the high-speed rotating cutting blade will not directly contact the surface of the rock wool board, but will gradually drive the first cutting blade to rotate and cut the rock wool board when it reaches the highest speed, thereby effectively reducing the vibration impact of the high-speed rotating cutting blade on the rock wool board at the moment of contact with the rock wool board, and will not affect the service life of the cutting blade due to impact damage. At the same time, it also avoids the phenomenon of the high-speed rotating cutting blade breaking and injuring people due to excessive vibration impact load, and has high safety and reliability.

[0016] 2. The lightweight rock wool insulation board cutting equipment for construction has a linkage structure between the transmission main shaft and the second cutting blade, which can form a feedback system for the high-speed rotation of the first cutting blade, and gradually drive it to rotate at high speed along with the output shaft of the driving motor. The entire action is triggered as the driving motor is started, without the need for human participation or adjustment. The operation is simple and the controllability is high, thereby effectively improving the applicability and controllability of the electric circular saw. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a schematic structural diagram of the cutting disc assembly of the present invention;

[0019] Figure 3 It is a partial front view of the cutting disc assembly of the structure of the present invention;

[0020] Figure 4 is a schematic structural diagram of a first cutting blade of the present invention;

[0021] Figure 5 It is a schematic structural diagram of the second cutting blade of the present invention.

[0022] In the figure: 1. main frame; 2. drive motor; 3. cutting disc assembly; 4. electromagnetic mechanism; 5. first cutting blade; 6. second cutting blade; 7. sealing gasket; 8. connecting pin rod; 9. fixed frame; 10. piezoelectric ring; 11. friction expansion ring; 12. transmission main shaft; 13. inner groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1 A cutting device for a lightweight rock wool insulation board for construction includes a main frame 1, a driving motor 2 is fixedly installed on one side of the middle of the main frame 1, and the output shaft of the driving motor 2 is connected to a cutting disc group 3 to provide corresponding power support for its high-speed rotating body. An electromagnetic mechanism 4 fixedly connected to the main frame 1 is arranged on the top of the outer periphery of the cutting disc group 3. At the same time, a certain overlap area is arranged between the inside of the electromagnetic mechanism 4 and the top of the outer surface of the cutting disc group 3, such as Figure 2-Figure 3 As shown, the cutting disc group 3 includes a first cutting blade 5 and two groups of second cutting blades 6 movably sleeved on both sides thereof, and a ring-shaped array of through holes is provided at the bottom end inside the first cutting blade 5, and the two groups of second cutting blades 6 are riveted to each other, and the bottom ends of the two groups of second cutting blades 6 are fixedly sleeved with a fixed frame 9 through a connecting pin 8, and the inner wall of the fixed frame 9 is fixedly sleeved with a piezoelectric ring 10, the inner wall of the piezoelectric ring 10 is fixedly sleeved with a friction expansion ring 11, and the inner wall of the friction expansion ring 11 is movably sleeved with a transmission main shaft 12, and a key groove is provided on one side of the outer surface of the transmission main shaft 12 and a transmission connection is formed with the output shaft of the drive motor 2 through a connecting sleeve.

[0025] like Figure 4-Figure 5 As shown, in the present technical solution, a group of inner grooves 13 are respectively provided on both sides of the middle part of the outer surface of the first cutting blade 5, and a sealed chamber can be formed between the two groups of second cutting blades 6. At the same time, a sealing gasket 7 is provided on the opposite surface between the two groups of second cutting blades 6 to increase the sealing of the chamber formed between the first cutting blade 5 and the two groups of second cutting blades 6, and the closed chamber formed therein is filled with a full volume of magnetorheological fluid.

[0026] In this technical solution, the friction expansion ring 11 is made of memory alloy, and the fitting clearance between its inner wall and the outer surface of the transmission main shaft 12 is smaller than its own thermal expansion, so that a transmission connection can be formed between the transmission main shaft 12 and the friction expansion ring 11 when thermal expansion occurs.

[0027] In the present technical solution, the interior of the piezoelectric ring 10 forms an electrical feedback connection with the electromagnetic mechanism 4 through a control system, and the pressure it is subjected to is directly proportional to the magnetic field generated by the electromagnetic mechanism 4, so as to change the viscosity of the magnetorheological fluid thereon and force the first cutting blade 5 to rotate at high speed along with the high-speed rotation of the second cutting blade 6, thereby cutting the rock wool board.

[0028] In the present technical solution, a rubber sleeve is fixedly connected to the outer surface of the transmission main shaft 12 and the friction expansion ring 11, so as to increase the heat generated by the mutual friction between the transmission main shaft 12 and the friction expansion ring 11, and at the same time form a buffer zone for the piezoelectric ring 10 to effectively prevent it from being damaged due to excessive pressure.

[0029] The usage and working principle of this embodiment:

[0030] When the electric circular saw is needed to cut the rock wool board, the drive motor 2 is first started and the transmission main shaft 12 thereon is driven to rotate at high speed. Then, the electric circular saw is brought close to the surface of the rock wool board to be cut, and under the action of the rubber sleeve thereon, friction and heat are generated between it and the friction expansion ring 11 due to the rotation speed difference, and when a large amount of heat is generated, the friction expansion ring 11 is forced to deform, and while squeezing the piezoelectric ring 10, the second cutting blade 6 can be driven to rotate at high speed. At the same time, under the feedback action of the piezoelectric ring 10, the current output of the electromagnetic mechanism 4 in the control system is increased, so that it can generate a magnetic field of a certain intensity to a part of the top area of ​​the cutting disk group 3, so as to increase the viscosity of the magnetorheological fluid filled therein, and then gradually drive the first cutting blade 5 to rotate, until it and the second cutting blade 6 rotate synchronously at high speed, thereby realizing the cutting operation of the rock wool board.

[0031] 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.

[0032] 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 cutting device for a lightweight rock wool insulation board for construction, comprising a main frame (1), a driving motor (2) being fixedly mounted on one side of the middle of the main frame (1), and a cutting disc group (3) being drivingly connected to the output shaft of the driving motor (2), an electromagnetic mechanism (4) being fixedly connected to the main frame (1) being provided at the top of the outer periphery of the cutting disc group (3), and a certain overlapping area being provided between the inside of the electromagnetic mechanism (4) and the top of the outer surface of the cutting disc group (3), characterized in that: The cutting disc group (3) comprises a first cutting blade (5) and two groups of second cutting blades (6) movably sleeved on both sides thereof, the bottom ends of the two groups of second cutting blades (6) are fixedly sleeved with a fixed frame (9) via a connecting pin (8), and the inner wall of the fixed frame (9) is fixedly sleeved with a piezoelectric ring (10), the inner wall of the piezoelectric ring (10) is fixedly sleeved with a friction expansion ring (11), the inner wall of the friction expansion ring (11) is movably sleeved with a transmission main shaft (12), and a transmission connection is formed between the first cutting blade (5) and the output shaft of the drive motor (2), and a group of inner grooves (13) are respectively provided on both sides of the middle of the outer surface of the first cutting blade (5), and a sealed chamber can be formed between the first cutting blade (5) and the two groups of second cutting blades (6), and the sealed chamber formed by the first cutting blade (5) is filled with a full volume of magnetorheological fluid.

2. The cutting device for lightweight rock wool insulation board for construction according to claim 1 is characterized in that: The friction expansion ring (11) is made of a memory alloy material, and the matching clearance between its inner wall and the outer surface of the transmission main shaft (12) is smaller than its own thermal expansion.

3. The cutting device for lightweight rock wool insulation board for construction according to claim 2 is characterized in that: The interior of the piezoelectric ring (10) is electrically feedback-connected to the electromagnetic mechanism (4) via a control system, and the pressure applied to the piezoelectric ring is in direct proportion to the magnetic field generated by the electromagnetic mechanism (4).

4. The cutting device for lightweight rock wool insulation board for construction according to claim 3 is characterized by: A rubber sleeve is fixedly sleeved on the outer surfaces of the transmission main shaft (12) and the friction expansion ring (11) so as to increase the heat generated by the mutual friction between the transmission main shaft (12) and the friction expansion ring (11) and form a buffer zone for the piezoelectric ring (10) to effectively prevent the piezoelectric ring (10) from being damaged due to excessive pressure.

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