Cutting device for heating and ventilation pipe machining

Abstract

The utility model provides a cutting device for heating and ventilation pipe processing, which relates to the technical field of heating and ventilation pipe cutting, and comprises a cooling mechanism and a cushion block, the upper surface of the cushion block is provided with a cutting cavity for placing a heating and ventilation pipe, and the corners of the upper surface of the cushion block are provided with slots; the cushion block is detachably connected with an upper cover used for installing a cooling mechanism, the inner top face of the upper cover is fixedly connected with an insertion column inserted into the insertion groove, the upper cover is fixed to the cushion block by means of insertion between the insertion column and the insertion groove and connection between the cushion block and the hollowed-out position of the insertion column through a bolt, and therefore the heating and ventilation pipe is located in the cushion block, and the cooling effect is improved. And when the cooling liquid is cut and segmented by the cutting knife in the upper cover, the cooling liquid acting on the surface of the cutting knife cannot be splashed disorderly due to the fact that the upper cover is attached to the upper surface of the cushion block to form a relatively sealed space.

Description

Technical Field

[0001] The utility model relates to the technical field of HVAC pipe cutting, in particular to a cutting device for HVAC pipe processing. Background Art

[0002] The application scope of HVAC pipes is very wide, including purification system return air ducts, central air-conditioning ventilation ducts, industrial supply and exhaust ventilation ducts, environmental protection system suction and exhaust ducts, mining gas extraction pipes, mining rubber-coated cloth air ducts, etc. When laying HVAC pipes, the complete HVAC pipes need to be cut and segmented according to the actual situation.

[0003] Therefore, a HVAC pipe cutting machine for HVAC engineering in the prior art has a publication number of CN220560527U. The HVAC pipe is placed in a V-shaped placement groove. The electric push rods and the lower pressure plate on the front and rear sides can press the HVAC pipe during cutting, thereby ensuring the stability of the cutting. The drive motor is started to drive the rotation of the cutting disc. At the same time, the support frame and the cutting disc can be driven up and down by the electric cylinder. During the cutting process, the filtered coolant in the coolant filter chamber can be extracted by the liquid pump to spray the cutting disc for cooling.

[0004] However, because the blade is exposed to the air during the cutting process, the coolant sprayed on its surface is easy to fly out as the blade rotates. Utility Model Content

[0005] Aiming at the technical problem in the patent mentioned in the background technology that the coolant sprayed on the surface of the blade is easy to fly out as the blade rotates, the utility model provides a cutting device for HVAC pipe processing.

[0006] The technical solution adopted by the utility model is: a cutting device for HVAC pipe processing, including a cooling mechanism and a cushion block, the upper surface of the cushion block is provided with a cutting cavity for placing the HVAC pipe, and the corner positions of the upper surface of the cushion block are provided with slots, the cushion block is detachably connected to an upper cover for installing the cooling mechanism, the inner top surface of the upper cover is fixedly connected with a plug-in column plugged into the slot, the surface of the plug-in column near the bottom end and the slot groove wall near the groove bottom are both hollowed out, and the plug-in column and the cushion block are fixedly connected by bolts passing through the hollow part, and a cutting knife is provided on the inner top surface of the upper cover.

[0007] Preferably, an electric telescopic rod is provided through the inner top surface of the upper cover, the telescopic end of the electric telescopic rod is fixed on the cutting knife holder, and the cylinder body of the electric telescopic rod is fixedly connected to a gear ring rotatably connected to the inner top surface of the upper cover, and the inner top surface of the upper cover is slidably connected to a horizontal rack meshing with the gear ring.

[0008] Preferably, the inner top surface of the upper cover is fixedly connected with a first electric push rod for pushing the horizontal rack to slide, the liquid outlet pipe of the cooling mechanism is located inside the upper cover, and the inner top surface of the upper cover is fixedly connected with an elastic rope connected to the surface of the liquid outlet pipe in the cooling mechanism.

[0009] Preferably, two symmetrically distributed grooves are provided on the upper surface of the cushion block at both sides of the cutting knife, the groove walls are rotatably connected to a connecting shaft, a clamping arm is fixedly connected to the connecting shaft, and a clamping wheel and a roller group are rotatably connected to the clamping arm.

[0010] Preferably, one end of the connecting shaft passes through the cushion block and extends outward to be fixedly connected to a gear, a longitudinal rack meshing with the gear is inserted into the outer side of the cushion block, and a second electric push rod whose telescopic end is connected to the longitudinal rack is fixedly connected to the cushion block.

[0011] Preferably, the bottom of the cutting chamber is also rotatably connected to a roller set, and the roller set is arranged in a direction perpendicular to the clamping arm.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] In the utility model, the upper cover is fixed on the cushion block by utilizing the insertion of the plug-in column and the slot and the bolt connection between the cushion block and the hollow part of the plug-in column. Therefore, the HVAC pipe is located in the cushion block, and when it is cut into sections by the cutting knife in the upper cover, the coolant acting on the surface of the cutting knife will not splash because the upper cover is attached to the upper surface of the cushion block to form a relatively sealed space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional structural schematic diagram of a cutting device for HVAC pipe processing is proposed for the utility model;

[0015] Figure 2 The utility model provides a cross-sectional structural schematic diagram of a pad block of a cutting device for HVAC pipe processing;

[0016] Figure 3 The utility model provides a bottom view structural schematic diagram of an upper cover of a cutting device for HVAC pipe processing;

[0017] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0018] Legend: 1. Pad; 2. Longitudinal rack; 3. Gear; 4. Second electric push rod; 5. Upper cover; 6. Cooling mechanism; 7. Electric telescopic rod; 8. Plug column; 9. Slot; 10. Groove; 11. Clamping arm; 12. Connecting shaft; 13. Roller assembly; 14. Clamping wheel; 15. Elastic rope; 16. Gear ring; 17. Horizontal rack; 18. First electric push rod; 19. Cutting chamber; 20. Cutting knife. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They 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 operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection 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.

[0021] The following is combined with Figure 1-4 The utility model is further described.

[0022] In order to solve the technical problems in the background technology, the present application provides: a cutting device for HVAC pipe processing, including a cooling mechanism 6, and also including a cushion block 1, the upper surface of the cushion block 1 is provided with a cutting cavity 19 for placing the HVAC pipe, and the upper surface corners of the cushion block 1 are provided with slots 9, the cushion block 1 is detachably connected with an upper cover 5 for installing the cooling mechanism 6, the inner top surface of the upper cover 5 is fixedly connected with a plug 8 plugged into the slot 9, the surface of the plug 8 near the bottom end and the groove wall of the slot 9 near the bottom are hollowed out, and the plug 8 and the cushion block 1 are fixedly connected by bolts passing through the hollow part, the inner top surface of the upper cover 5 is provided with a cutting knife 20, when the HVAC pipe is placed in the cutting cavity 19 in the cushion block 1 When the upper cover 5 is installed on the cushion block 1, the plug-in column 8 is connected with the slot 9, and the plug-in column 8 is fixed on the cushion block 1 by using bolts to pass through the hollow parts on the surface of the cushion block 1 and the plug-in column 8. Therefore, when the cutting knife 20 in the upper cover 5 cuts the HVAC pipe in the cutting cavity 19, the coolant flying out from the surface of the cutting knife 20 will not splash. In addition, the cooling mechanism 6 in this scheme is a liquid extraction pump, a liquid extraction pipe and a liquid outlet pipe part of a HVAC pipe cutting machine for HVAC engineering with a publication number of CN220560527U. In actual use, a connecting pipe is installed at the bottom edge of the cavity wall on one side of the cutting cavity 19, which is connected to the liquid extraction pipe, and the cooling liquid is circulated by the liquid extraction pump.

[0023] In order to adjust the inclination of the cutting surface of the HVAC pipe: an electric telescopic rod 7 is provided through the inner top surface of the upper cover 5, the telescopic end of the electric telescopic rod 7 is fixed on the cutter 20, and the cylinder part of the electric telescopic rod 7 is fixedly connected with a gear ring 16 that is rotatably connected to the inner top surface of the upper cover 5, and the inner top surface of the upper cover 5 is slidably connected with a horizontal rack 17 that is meshed with the gear ring 16, and the inner top surface of the upper cover 5 is fixedly connected with a first electric push rod 18 for pushing the horizontal rack 17 to slide, and the first electric push rod 18 is used to extend and retract to realize the sliding of the horizontal rack 17, and enter the meshed gear ring 16 to drive the cylinder part of the electric telescopic rod 7 By rotating the cutting knife 20, the angle of the cutting knife 20 can be adjusted. Therefore, when cutting the HVAC pipe, the inclination of the cutting surface can be adjusted. In addition, the cutting knife 20 can be raised and lowered by extending and retracting the electric telescopic rod 7. The liquid outlet pipe of the cooling mechanism 6 is located in the upper cover 5, and the top surface of the upper cover 5 is fixedly connected with an elastic rope 15 connected to the surface of the liquid outlet pipe in the cooling mechanism 6. When the cutting knife 20 is raised and lowered, one end of the liquid outlet pipe in the cooling mechanism 6 will be driven to rise and fall. When the cutting knife 20 descends, the elastic rope 15 is driven to elastically extend. When the cutting knife 20 rises and resets, the elastic rope 15 elastically contracts to reset the liquid outlet pipe.

[0024] In order to ensure the convenience of cutting the HVAC pipe in sections: two symmetrically distributed grooves 10 are provided on the upper surface of the pad 1 on both sides of the cutting knife 20, and the groove wall of the groove 10 is rotatably connected to a connecting shaft 12, and a clamping arm 11 is fixedly connected to the connecting shaft 12, and a clamping wheel 14 and a roller group 13 are rotatably connected to the clamping arm 11. One end of the connecting shaft 12 passes through the pad 1 and extends outward and is fixedly connected to a gear 3. A longitudinal rack 2 meshing with the gear 3 is inserted on the outer side of the pad 1, and a second electric push rod 4 connected to the longitudinal rack 2 at the telescopic end is fixedly connected to the pad 1, and the bottom of the cutting chamber 19 is also rotatably connected to the roller group 13, and the roller group 13 is arranged in a direction perpendicular to the clamping arm 11. When the HVAC pipe is located in the cutting chamber 19, the roller group 13 on the surface of the HVAC pipe and the bottom of the cutting chamber 19 are The wheel group 13 is in contact, and the second electric push rod 4 is extended and retracted to realize the lifting and lowering of the longitudinal rack 2, and then the meshing gear 3 drives the connecting shaft 12 to rotate, so that the clamping arm 11 fixedly connected to the connecting shaft 12 is swung toward the cutting cavity 19, and the roller group 13 and the clamping wheel 14 on the surface of the clamping arm 11 are in contact with the positions on both sides of the top surface of the outer wall of the HVAC pipe. Because the center lines of the clamping wheel 14 and the rollers in the roller group 13 are perpendicular to the length direction of the cutting cavity 19, the friction force is increased by applying pressure to the surface of the HVAC pipe by the clamping arm 11, which can prevent the HVAC pipe from rotating in the cutting cavity 19. However, the rolling of the clamping wheel 14 and the roller group 13 can be used to realize the movement of the device on the surface of the HVAC pipe, that is, after a section of cutting is completed, the position of the sliding adjustment device can be realized to realize the cutting of the next section.

[0025] Working principle: place the HVAC pipe in the cutting cavity 19, and install the upper cover 5 on the pad 1 by connecting the plug post 8 with the slot 9, and fix the plug post 8 on the pad 1 by using bolts to pass through the hollow parts on the surface of the pad 1 and the plug post 8. Then the electric telescopic rod 7 is extended to enable the cutting knife 20 in the starting state to approach the HVAC pipe until the HVAC pipe is cut into sections. During the cutting process, the cooling mechanism 6 is used to cool the blade of the cutting knife 20. After the cutting is completed, the clamping wheel 14 and the roller group 13 are rolled to move the device on the surface of the HVAC pipe to the next position that needs to be cut.

[0026] The wiring diagram of the second electric push rod 4, the electric telescopic rod 7, the first electric push rod 18 and the cutting knife 20 in the utility model belongs to the common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the second electric push rod 4, the electric telescopic rod 7, the first electric push rod 18 and the cutting knife 20 are no longer explained in detail.

[0027] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A cutting device for HVAC pipe processing, comprising a cooling mechanism (6), characterized in that: It also comprises a cushion block (1), the upper surface of which is provided with a cutting cavity (19) for placing a heating and ventilation pipe, and slots (9) are provided at the corner positions of the upper surface of the cushion block (1), the cushion block (1) is detachably connected to an upper cover (5) for installing a cooling mechanism (6), the inner top surface of the upper cover (5) is fixedly connected with a plug-in column (8) plugged into the slot (9), the surface of the plug-in column (8) near the bottom end and the groove wall of the slot (9) near the groove bottom are both hollowed out, and the plug-in column (8) is fixedly connected to the cushion block (1) by bolts passing through the hollowed-out part, and a cutting knife (20) is provided on the inner top surface of the upper cover (5).

2. The HVAC pipe cutting device according to claim 1, characterized in that: An electric telescopic rod (7) is provided through the inner top surface of the upper cover (5); the telescopic end of the electric telescopic rod (7) is fixed on a cutter (20) holder, and the cylinder portion of the electric telescopic rod (7) is fixedly connected to a toothed ring (16) rotatably connected to the inner top surface of the upper cover (5); and the inner top surface of the upper cover (5) is slidably connected to a horizontal rack (17) meshingly connected to the toothed ring (16).

3. The HVAC pipe cutting device according to claim 2, characterized in that: The inner top surface of the upper cover (5) is fixedly connected to a first electric push rod (18) for pushing the horizontal rack (17) to slide; the liquid outlet pipe of the cooling mechanism (6) is located in the upper cover (5); and the inner top surface of the upper cover (5) is fixedly connected to an elastic rope (15) connected to the surface of the liquid outlet pipe in the cooling mechanism (6).

4. The HVAC pipe cutting device according to claim 1, characterized in that: The upper surface of the cushion block (1) is provided with two symmetrically distributed grooves (10) at both sides of the cutting blade (20); the groove wall of the groove (10) is rotatably connected to a connecting shaft (12); a clamping arm (11) is fixedly connected to the connecting shaft (12); and a clamping wheel (14) and a roller group (13) are rotatably connected to the clamping arm (11).

5. The HVAC pipe processing cutting device according to claim 4, characterized in that: One end of the connecting shaft (12) passes through the cushion block (1) and extends outward to be fixedly connected to a gear (3); a longitudinal rack (2) meshingly connected to the gear (3) is inserted into the outer side of the cushion block (1); and a second electric push rod (4) whose telescopic end is connected to the longitudinal rack (2) is fixedly connected to the cushion block (1).

6. The HVAC pipe cutting device according to claim 1, characterized in that: The bottom of the cutting chamber (19) is also rotatably connected to a roller group (13), and the roller group (13) is arranged in a direction perpendicular to the clamping arm (11).

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