Safe cutting device for heating and ventilation pipe

Abstract

The utility model provides a heating and ventilation pipe safety cutting device which comprises a feeding assembly and a cutting assembly, the feeding assembly comprises a feeding table, a reciprocating feeding mechanism and an end fixing mechanism, the reciprocating feeding mechanism and the end fixing mechanism are arranged on the feeding table, and the cutting assembly comprises a cutting table, a cutting mechanism and a water cooling mechanism, the reciprocating feeding mechanism comprises an axial rail arranged on the feeding table and a lifting bracket moving along the axial rail, and the lifting bracket is of a scissor type lead screw lifting structure driven by a motor. The reciprocating feeding mechanism clamps and pushes pipes in a reciprocating mode on the axial track of the feeding table, the pipes are clamped and fixed through the end fixing mechanism after being pushed in place, then the pipes are cut through the cutting table and the cutting mechanism arranged on the cutting table, and cooling and dust removal are conducted through the water cooling mechanism while cutting is conducted; the lifting bracket runs on the axial track through the electric sliding block; the lifting bracket is a scissor fork frame which is driven by a motor and composed of scissor-shaped supporting plates, and therefore lifting of workpieces is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction equipment, in particular to a heating and ventilation pipe safety cutting device. Background Art

[0002] Generally, HVAC pipes are produced in a long length, so they need to be cut before construction. The conventional cutting device is fed by construction workers pushing from the end of the pipe. In order to maintain cutting accuracy, the pipe needs to be clamped during cutting and guided during feeding. When feeding the pipe, the construction workers adjust the clamping mechanism to no longer clamp the pipe, which is a cumbersome operation. HVAC pipes come in different sizes, lengths, thicknesses, and when cutting, they need to be manually adjusted and installed, which is very cumbersome and inefficient.

[0003] The workpiece bracket currently used in the cutting machine is generally a hand-cranked screw transmission structure, including two groups of support arms whose bottom ends are hinged at the center of the mounting frame, two support wheels located on both sides of the hinge position of the support arm and on the same straight line as the hinge position of the support arm, and screws that drive the two support wheels to move along the straight line direction of the hinge position of the support wheel and the support arm. When lifting, the support wheel is driven to move toward the hinge position of the support arm through the rotation of the screw, thereby pushing the top ends of the two groups of support arms closer to each other, thereby achieving lifting. In the prior art, since the screw needs to be manually rotated during adjustment, it is difficult to rotate the screw when there is a heavier workpiece, especially when the lifting height is higher, the adjustment becomes more inconvenient. Therefore, the weight of the workpiece borne by this structure in the prior art is limited, and the range of workpieces that can be adapted is small. Utility Model Content

[0004] The utility model provides a safe cutting device for HVAC pipes, which can drive a lifting bracket with a motor to adjust, clamp and cut HVAC pipes of different sizes.

[0005] The technical solution of the utility model is achieved as follows: a HVAC pipe safety cutting device includes a feeding assembly and a cutting assembly, the feeding assembly includes a feeding table and a reciprocating feeding mechanism and an end fixing mechanism arranged thereon, the cutting assembly includes a cutting table and a cutting mechanism and a water cooling mechanism arranged thereon; the reciprocating feeding mechanism includes an axial track arranged on the feeding table, and a lifting bracket moving along the axial track, the lifting bracket is a scissor-type screw lifting structure driven by a motor, and the lower end of the lifting bracket is installed on the axial track through an electric slider; the cutting table is provided with a moving mechanism for controlling the lateral and vertical movement of the cutting mechanism.

[0006] Preferably, the lifting bracket includes a bracket base, a scissors frame, an electric screw and support rollers. The electric screw is installed on the bracket base and connected to drive the lower end of the scissors frame. There are two support rollers that are symmetrically arranged on the top of the scissors frame. The lower end of the bracket base is installed on the electric slider.

[0007] Preferably, the end fixing mechanism is fixedly installed on one end of the feeding table close to the cutting table, and includes a fixing seat, a fixing ring and a fan-shaped clamping block. The fixing ring is fixedly installed on the feeding table through the fixing seat. There are at least two fan-shaped clamping blocks that are evenly distributed on the fixing ring. The fan-shaped clamping blocks are installed on the inner side of the fixing ring through a fixing cylinder.

[0008] Preferably, there are four fan-shaped clamping blocks and four fixed cylinders on the fixed ring, the fixed cylinders are evenly distributed on the fixed ring, and the telescopic ends of the fixed cylinders face the center of the fixed ring.

[0009] Preferably, the fixing ring is further provided with a group of infrared sensors, which are arranged on the inner wall of the fixing ring and symmetrically arranged at the gaps between the fixing rings.

[0010] Preferably, the moving mechanism of the cutting assembly includes a translation slide, a translation slider, a translation cylinder and a lifting cylinder, and the translation slide is opened on the upper surface of the cutting table and is perpendicular to the axial track direction.

[0011] Preferably, the translation slider is arranged in the translation slide groove, the translation cylinder is arranged at one end of the translation slide groove and connected to the translation slider, a vertical lifting cylinder is arranged on the translation slider, and the cutting mechanism is fixedly installed at the output end above the lifting cylinder.

[0012] Preferably, the water cooling mechanism includes a water tank and a water pump installed in the middle of the cutting table, and a universal water spray pipe arranged on the upper edge of the cutting table. The cutting table is also provided with a reflux cavity connected to the water tank, and a filter screen is provided in the reflux cavity to filter waste.

[0013] Preferably, there are two axial tracks, and the two axial tracks are arranged in parallel along the length direction of the pipe. Two electric sliders are symmetrically arranged at the bottom of the bracket base, and the two electric sliders are respectively installed on the two axial tracks.

[0014] Preferably, a tail fixing mechanism is also provided on the feeding table, and the tail fixing mechanism is located on the same central axis as the reciprocating feeding mechanism and the end fixing mechanism. The tail fixing mechanism includes a tail base, a fixing ring and a fan-shaped clamping block, and the tail base is slidably mounted on the axial track through an electric slider.

[0015] Compared with the prior art, the utility model has the following advantages: the reciprocating feeding mechanism clamps and reciprocates the pipe on the axial track of the feeding table, and after pushing it into place, it is clamped and fixed by the end fixing mechanism, and then cut by the cutting table and the cutting mechanism arranged thereon, and the water cooling mechanism is used to cool and remove dust during cutting; the lifting bracket runs on the axial track through the electric slider, and no manual pushing is required, which frees up manpower; the lifting bracket is a scissor fork frame composed of a scissor-shaped support plate driven by a motor, so as to realize the lifting of the workpiece, which solves the problem that the screw needs to be manually rotated when adjusting the height in the prior art, and it is difficult to rotate the screw when there are heavier pipes, and the adjustment is inconvenient, and the effect is more significant. It can adapt to HVAC pipes of different sizes, and adjust the clamping and cutting according to the size of the HVAC pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the feeding component part of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the cutting component part of the utility model.

[0019] In the figure: 1. reciprocating feeding mechanism; 2. end fixing mechanism; 3. moving mechanism; 4. cutting mechanism; 5. water cooling mechanism; 6. feeding table; 7. cutting table; 8. tail fixing mechanism; 9. controller; 11. axial track; 12. electric slider; 13. bracket base; 14. scissors frame; 15. electric lead screw; 16. supporting roller; 21. fixing seat; 22. fixing ring; 23. fan-shaped clamping block; 24. fixed cylinder; 25. infrared sensor; 31. translation slide; 32. translation slider; 33. translation cylinder; 34. lifting cylinder; 51. water tank; 52. water pump; 53. universal water spray pipe; 54. reflux cavity; 55. filter. 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 of 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] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example: See Figure 1 , Figure 2 and Figure 3 A HVAC pipe safety cutting device includes a feeding assembly and a cutting assembly, wherein the feeding assembly includes a feeding table 6 and a reciprocating feeding mechanism and an end fixing mechanism 2 arranged thereon, and the cutting assembly includes a cutting table 7 and a cutting mechanism 4 and a water cooling mechanism 5 arranged thereon; the reciprocating feeding mechanism includes an axial track 11 arranged on the feeding table 6, and a lifting bracket moving along the axial track 11, the lifting bracket is a scissor-type screw lifting structure driven by a motor, and the lower end of the lifting bracket is installed on the axial track 11 through an electric slider 12; the cutting table 7 is provided with a moving mechanism 3 for controlling the lateral and vertical movement of the cutting mechanism 4.

[0024] Figure 2 In the figure, the reciprocating feeding mechanism clamps and reciprocatingly pushes the pipe on the axial track 11 of the feeding table 6. After being pushed into place, it is clamped and fixed by the end fixing mechanism 2, and then cut by the cutting table 7 and the cutting mechanism 4 arranged thereon. While cutting, it is cooled and dusted by the water cooling mechanism 5; the lifting bracket runs on the axial track 11 through the electric slider 12, and no manual pushing is required, thus freeing up manpower; the lifting bracket is a scissor frame 14 composed of a scissor-type support plate driven by a motor, thereby realizing the lifting of the workpiece, solving the problem that the screw needs to be manually rotated when adjusting the height in the prior art, and it is difficult to rotate the screw when there are heavier pipes, resulting in inconvenient adjustment, and the effect is more significant.

[0025] There are two axial rails 11, and the two axial rails 11 are arranged in parallel along the length direction of the pipe, and two electric sliders 12 are symmetrically arranged at the bottom of the bracket base 13, and the two electric sliders 12 are respectively installed on the two axial rails 11. The two axial rails 11 form symmetrical support for the bracket base 13, so that the bracket base 13 is more stable, not easy to tilt and displace, and more accurate.

[0026] The lifting bracket includes a bracket base 13, a scissors frame 14, an electric screw 15 and a supporting roller 16. The electric screw 15 is installed on the bracket base 13 and connected to drive the lower end of the scissors frame 14. There are two supporting rollers 16 that are symmetrically arranged on the top of the scissors frame 14. The lower end of the bracket base 13 is installed on the electric slider 12.

[0027] The support roller 16 is hinged on the top of the scissor frame 14 through a rotating shaft and is located on the symmetrical axis of the lifting bracket. The electric lead screw 15 supports the support roller 16 through the scissor frame 14. When the electric lead screw 15 controls the scissor frame 14 to rise or fall by rotating forward and reverse, the support roller 16 also follows the movement in the vertical direction. The four identical support plates on the scissor frame 14 are crossed and tightly fitted with the support roller 16. The support roller 16 holds up the pipe, which is a rubber ship with large friction. The friction force is used to translate the pipe, which can effectively ensure that the center of the pipe is always consistent with the center of the support lifting bracket, and then consistent with the center of the end fixing mechanism 2, to ensure cutting accuracy.

[0028] The end fixing mechanism 2 is fixedly installed on one end of the feeding table 6 close to the cutting table 7, and includes a fixing seat 21, a fixing ring 22 and a fan-shaped clamping block 23. The fixing ring 22 is fixedly installed on the feeding table 6 through the fixing seat 21. There are at least two fan-shaped clamping blocks 23 that are evenly distributed on the fixing ring 22. The fan-shaped clamping blocks 23 are installed on the inner side of the fixing ring 22 through the fixing cylinder 24. There are four fan-shaped clamping blocks 23 and fixing cylinders 24 on the fixing ring 22. The fixing cylinders 24 are evenly distributed on the fixing ring 22, and the telescopic ends of the fixing cylinders 24 face the center of the fixing ring 22.

[0029] The fixing ring 22 is also provided with a group of infrared sensors 25, which are arranged on the inner wall of the fixing ring 22 and symmetrically arranged at the gap between the fixing rings 22. A controller 9 with a display is provided on the cutting device, and the controller 9 is connected to the infrared sensor 25 signal. When sensing that a pipe enters the end fixing mechanism 2, the signal is fed back to the controller 9, and then the controller 9 controls each fixing cylinder 24 to work synchronously manually or automatically. The front end of the fixing cylinder 24 pushes the fan-shaped clamping block 23 to move toward the center of the fixing ring 22, and the fan-shaped clamping block 23 clamps and tightens the pipe, and then waits for the cutting assembly to cut.

[0030] Figure 3 In the figure, the moving mechanism 3 of the cutting assembly includes a translation chute 31, a translation slider 32, a translation cylinder 33 and a lifting cylinder 34. The translation chute 31 is opened on the upper surface of the cutting table 7 and is perpendicular to the axial track 11. The translation slider 32 is arranged in the translation chute 31, the translation cylinder 33 is arranged at one end of the translation chute 31 and connected to the translation slider 32, a vertical lifting cylinder 34 is arranged on the translation slider 32, and the cutting mechanism 4 is fixedly installed at the output end above the lifting cylinder 34.

[0031] During cutting, the moving mechanism 3 drives the cutting assembly to move horizontally and vertically, thereby cutting the pipe at various angles. The output end of the translation cylinder 33 is connected to the translation slider 32, which pushes the translation slider 32 to move horizontally in the translation slot 31. The upper end of the translation slider 32 is installed with a lifting cylinder 34, which drives the cutting assembly to move up and down when it works, thereby realizing the cutting assembly moving in a vertical plane.

[0032] The water cooling mechanism 5 includes a water tank 51 and a water pump 52 installed in the middle of the cutting table 7, and a universal water spray pipe 53 arranged on the upper edge of the cutting table 7. When cutting some dusty pipes, the controller 9 controls the water pump 52 to pump water, and the universal water spray pipe 53 can spray water at the cutting point to achieve effective dust removal. When cutting metal pipes, the temperature can be effectively reduced to prevent the metal from changing its performance due to high temperature. The cutting table 7 is also provided with a reflux cavity 54 connected to the water tank 51. The reflux cavity 54 is provided with a filter screen 55 for filtering waste. The spray water flows back to the water tank 51 through the reflux cavity 54 for recycling, and the filter screen 55 is filtered during reflux to prevent large pieces of residue from clogging the water pump 52.

[0033] The feeding table 6 is also provided with a tail fixing mechanism 8, which is located on the same central axis as the reciprocating feeding mechanism and the end fixing mechanism 2. The tail fixing mechanism 8 includes a tail base, a fixing ring 22 and a fan-shaped clamping block 23. The tail base is slidably mounted on the axial track 11 through an electric slider 12.

[0034] The tail fixing mechanism 8 has a substantially similar structure to the end fixing mechanism 2, and has the same fixing ring 22, fixing cylinder 24 and fan-shaped clamping block 23, which clamp the head and tail of the pipe respectively, making the pipe more stable. When only one end of the pipe is left, the tail fixing mechanism 8 can slide on the axial track 11 through the electric slider 12, and follow the tail to clamp and pull.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A HVAC pipe safety cutting device, comprising a feeding assembly and a cutting assembly, characterized in that: The feeding assembly includes a feeding table and a reciprocating feeding mechanism and an end fixing mechanism arranged thereon, and the cutting assembly includes a cutting table and a cutting mechanism and a water cooling mechanism arranged thereon; The reciprocating feeding mechanism includes an axial track arranged on the feeding table, and a lifting bracket moving along the axial track. The lifting bracket is a scissor-type screw lifting structure driven by a motor, and the lower end of the lifting bracket is installed on the axial track through an electric slider; the cutting table is provided with a moving mechanism for controlling the lateral and vertical movement of the cutting mechanism.

2. A HVAC pipe safety cutting device according to claim 1, characterized in that: The lifting bracket includes a bracket base, a scissors frame, an electric screw and support rollers. The electric screw is installed on the bracket base and connected to drive the lower end of the scissors frame. There are two support rollers that are symmetrically arranged on the top of the scissors frame. The lower end of the bracket base is installed on an electric slider.

3. A HVAC pipe safety cutting device according to claim 2, characterized in that: The end fixing mechanism is fixedly installed on one end of the feeding table close to the cutting table, and includes a fixing seat, a fixing ring and a fan-shaped clamping block. The fixing ring is fixedly installed on the feeding table through the fixing seat. There are at least two fan-shaped clamping blocks that are evenly distributed on the fixing ring. The fan-shaped clamping blocks are installed on the inner side of the fixing ring through a fixing cylinder.

4. A HVAC pipe safety cutting device according to claim 3, characterized in that: There are four fan-shaped clamping blocks and four fixed cylinders on the fixed ring. The fixed cylinders are evenly distributed on the fixed ring, and the telescopic ends of the fixed cylinders face the center of the fixed ring.

5. A HVAC pipe safety cutting device according to claim 4, characterized in that: The fixing ring is also provided with a group of infrared sensors, which are arranged on the inner wall of the fixing ring and symmetrically arranged at the gaps between the fixing rings.

6. A HVAC pipe safety cutting device according to claim 5, characterized in that: The moving mechanism of the cutting assembly includes a translation slide, a translation slider, a translation cylinder and a lifting cylinder. The translation slide is arranged on the upper surface of the cutting table and is perpendicular to the axial track direction.

7. A HVAC pipe safety cutting device according to claim 6, characterized in that: The translation slider is arranged in the translation slide groove, the translation cylinder is arranged at one end of the translation slide groove and connected to the translation slider, a vertical lifting cylinder is arranged on the translation slider, and the cutting mechanism is fixedly installed on the output end above the lifting cylinder.

8. A HVAC pipe safety cutting device according to claim 1, characterized in that: The water cooling mechanism includes a water tank and a water pump installed in the middle of the cutting table, and a universal water spray pipe arranged on the edge of the cutting table. The cutting table is also provided with a reflux cavity connected to the water tank, and a filter screen for filtering waste is arranged in the reflux cavity.

9. A HVAC pipe safety cutting device according to claim 1, characterized in that: There are two axial tracks, and the two axial tracks are arranged in parallel along the length direction of the pipe. Two electric sliders are symmetrically arranged at the bottom of the bracket base, and the two electric sliders are respectively installed on the two axial tracks.

10. A HVAC pipe safety cutting device according to any one of claims 1 to 9, characterized in that: The feeding platform is also provided with a tail fixing mechanism, which is located on the same central axis as the reciprocating feeding mechanism and the end fixing mechanism. The tail fixing mechanism includes a tail base, a fixing ring and a fan-shaped clamping block. The tail base is slidably mounted on the axial track through an electric slider.

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