Cylinder rotating mechanism and cutter based on same

Abstract

The utility model discloses an air cylinder rotating mechanism and a cutter based on the air cylinder rotating mechanism, relates to the field of material cutting, aims to solve the problem of air cylinder air pipe winding generated during revolution of a plurality of groups of cutting wheels in the prior art, and adopts the technical scheme that an air distribution ring is introduced between a shell and a shaft barrel; an inner ring groove and an outer ring groove are formed in the inner ring face and the outer ring face of the air distribution ring and communicated through a hole channel, the shaft barrel is connected with an air cylinder, the shell is connected with an air source, and therefore air path connection in the revolution process is maintained, meanwhile, air pipe winding can be avoided, the shaft barrel is driven by a motor to rotate, a clamping mechanism is arranged, and an air cylinder rod is connected with a cutting knife wheel, and the cutter is formed. Based on the air cylinder rotating structure, any number of air cylinders and cutting wheel sets can be additionally arranged according to needs, so that the cutting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material cutting, in particular to a cylinder rotating mechanism and a cutter based on the mechanism. Background Art

[0002] At present, copper and aluminum tube drawing equipment generally uses hydraulic cylinders to drive the cutter to perform linear motion cutting at the tube head and tube tail. There are common problems such as uneven cutting ports and easy core head. In addition, for the production of copper tubes with different specifications and diameters, the straight cutting knife device has poor adaptability to product specifications, or it is necessary to design multiple sets of devices with different specifications for switching. When switching specifications, the inner core needs to be replaced, the operation is cumbersome, the incision is torn, and the product quality is poor.

[0003] Chinese patent CN206568209U discloses a plastic pipe clamping and cutting device suitable for different pipe diameters. The technical solution adopted is that it includes a support frame, a material hole is provided in the center of the support frame for allowing materials to pass through, and 4 groups of clamping pads driven by a clamping cylinder are arranged in a circular array around the material hole for clamping the material. A limit slip ring is coaxially arranged outside the material hole, and a movable knife table is provided. A gear is connected to the movable knife table, and the gear is meshed with the inner teeth of the limit slip ring. A cutting motor and a cutting cylinder are provided on the movable knife table. The telescopic end of the cutting cylinder is connected to a wheel cutter, and the wheel cutter is connected to the cutting motor by transmission.

[0004] The prior art arranges multiple sets of clamping cylinders in a circular array, which can quickly accommodate materials of different sizes and specifications, and is convenient and quick to switch material specifications. The use of wheel cutters will not cause tearing of the cuts. However, the device uses a cylinder to push the cutter, and adopts a single wheel for cutting, which has low cutting efficiency. Simply increasing the number of cutters will cause the cylinder air pipe to be entangled during the rotation of the cutter. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a cylinder rotating mechanism and a cutter based on the mechanism, which can effectively solve the problem of cylinder air pipe entanglement caused by the revolution of multiple sets of cutting wheels in the background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model first discloses a cylinder rotating mechanism, which adopts the technical solution of comprising a cylinder, wherein the cylinder is provided with a plurality of cylinders in an annular array on a rotating frame, the rotating frame is connected to a shaft cylinder, and also comprises an outer shell, the outer shell is an annular structure with a cylindrical inner ring, the shaft cylinder axis is connected to the inner ring surface of the outer shell, so that relative rotation can occur between the shaft cylinder and the outer shell, an air dividing ring is also connected between the shaft cylinder and the outer shell, the air dividing ring has two, namely a first air dividing ring and a second air dividing ring, which are used for air supply and air return, a first air inlet and a first air outlet are provided in the shaft cylinder, a second air inlet and a second air outlet are provided on the rotating frame, the first air inlet is connected to the second air inlet, the first air outlet is connected to the second air outlet, the second air inlet and the second air outlet are connected to the cylinder, and an air inlet and an air outlet are provided on the outer shell, the air inlet is connected to the first air inlet through the first air dividing ring, and the air outlet is connected to the first air outlet through the second air dividing ring. The air in the air inlet is supplied to the first air inlet passage through the air dividing ring, thereby supplying air to the cylinder. The air out of the cylinder enters the first air outlet passage through the second air outlet passage and then enters the second air dividing ring, and leaves from the air outlet.

[0007] As a preferred technical solution of the utility model, the air dividing ring is an annular structure, and its outer ring surface has an outer ring groove, and the inner ring surface has an inner ring groove, and the outer ring groove and the inner ring groove are connected through a channel. When the shaft cylinder rotates, the air inlet and the air outlet are always connected with the outer ring groove, and the first air inlet and the first air outlet are always connected with the inner ring groove. Because the outer ring groove and the inner ring groove are connected through the channel, the air inlet is always connected with the first air inlet, and the air outlet is always connected with the first air outlet.

[0008] As a preferred technical solution of the utility model, an O-ring is installed between the air dividing ring and the outer shell and the shaft cylinder; a sealing ring is installed between the first air inlet and the second air inlet, and between the first air outlet and the second air outlet to seal the joints and prevent air leakage.

[0009] As a preferred technical solution of the utility model, a bearing is installed between the shaft cylinder and the outer shell, and there are two bearings, which are arranged on both sides of the air dividing ring. There is an elastic retaining ring for a hole between the shaft cylinder and the outer shell, and the elastic retaining ring for the hole is located on the outside of the bearing.

[0010] The utility model also discloses a cutter based on the above-mentioned cylinder rotating mechanism, comprising a motor, a cutter shaft slideway and a clamping mechanism, wherein the output end of the motor is connected to a reducer and then connected to a shaft cylinder; the rotating frame and the cylinder are both connected to the cutter shaft slideway, a cutter frame is also slidably connected to the cutter shaft slideway, the cutter frame is connected to the telescopic end of the cylinder, a cutter wheel is mounted on the cutter frame, the extension amount of the cutter wheel is controlled by the cylinder, the motor drives the shaft cylinder to rotate, thereby driving the cutter wheel to revolve to achieve cutting; after the cutter wheel has problems such as blade curling, the cutter wheel can be disassembled for replacement; the clamping mechanism also comprises a clamping cylinder and a clamping block, the telescopic end of the clamping cylinder is connected to the clamping block.

[0011] As a preferred technical solution of the utility model, there are multiple clamping cylinders, which are distributed in a circular array and are coaxial with the shaft tube around the axis. The clamping cylinders can fix the material by clamping.

[0012] As a preferred technical solution of the utility model, the clamping cylinder is fixed on the pipe clamp frame through a fixing block at the front end of the cylinder.

[0013] As a preferred technical solution of the utility model, the cylinder is connected to the cutter shaft slideway via a connecting plate.

[0014] As a preferred technical solution of the utility model, the output end of the reducer is connected to a first transmission wheel, the shaft tube is mounted with a second transmission wheel, and friction transmission, such as chain transmission or belt transmission, is adopted between the first transmission wheel and the second transmission wheel.

[0015] As an optimal technical solution of the utility model, meshing transmission is adopted between the output end of the reducer and the shaft cylinder, such as respectively installing gears to use gear transmission, or installing a worm wheel on the shaft cylinder and using a worm at the output end of the reducer to adopt worm gear transmission.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a relatively rotatable outer shell and shaft cylinder, and provides a bearing and an air dividing ring between the outer shell and the shaft cylinder. The air dividing ring adopts an annular groove formed on the outer ring surface and the inner ring surface, and the two annular grooves are connected through a hole. The annular groove is connected to the cylinder air path through the air path, which can always maintain the smooth flow of the air path during the rotation process, and the air pipe will not be entangled. Based on the cylinder rotation structure, any number of cylinders and cutting wheel groups can be installed as needed and under the premise that the installation space allows, so as to improve the cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the cylinder rotating mechanism of the utility model;

[0018] Figure 2This is a schematic diagram of the structure of the rotating frame of the utility model;

[0019] Figure 3 This is a side view structural diagram of the rotating frame of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the rotating frame in the F direction of the utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the rotating frame GG of the utility model;

[0022] Figure 6 This is a schematic diagram of the reverse structure of the rotating frame F direction of the utility model;

[0023] Figure 7 This is a schematic diagram of the cross-sectional structure of the rotating frame HH of the utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the cutter of the utility model when viewed from above;

[0025] Fig. 9 This is a schematic diagram of the front view structure of the cutter of the utility model;

[0026] Fig.10 This is an enlarged structural diagram of the utility model at A;

[0027] Fig.11 This is a schematic diagram of the side structure of the cutter of the utility model;

[0028] Fig.12 This is a schematic diagram of the top view of the structure of the cutter of the utility model;

[0029] Fig.13 This is a schematic diagram of the axonometric structure of the cutter of the utility model.

[0030] In the figure: 1, motor; 2, first sprocket; 3, second sprocket; 4, housing; 5, air dividing ring; 501, first air dividing ring; 502, second air dividing ring; 6, bearing; 7, elastic retaining ring for hole; 8, screw; 9, rotating frame; 10, cylinder; 11, cutter wheel; 12, cutter frame; 13, cutter shaft slideway; 14, connecting plate; 15, pipe clamp frame; 16, clamping cylinder; 17, cylinder connecting block; 18, copper pipe; 19, cylinder front end fixing block; 20, clamping block; 21, transmission chain; 22, shaft cylinder; 23, first threaded through hole; 24, second threaded through hole; 25, airway port. DETAILED DESCRIPTION

[0031] 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 in 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. Example 1

[0032] In order to solve the problem that the air pipe will be entangled during the rotation process when the movable tool table is directly added in the prior art, Figures 1 to 13 As shown, the utility model discloses a cutter capable of realizing the revolution of multiple cutting tables with cylinders. The technical solution adopted is to first build a rotating mechanism:

[0033] like Figure 1 As shown, two bearings 6 are used, the outer ring of the bearing 6 is connected to the cylindrical housing 4, and the inner ring is connected to the shaft cylinder 22, and the two are rotatably connected.

[0034] Secondly, connect the cylinder 10 and the cutter wheel 11, such as Fig. 9 , Fig.10 As shown, the end surface of the shaft cylinder 22 is designed with a threaded blind hole, which is connected and fastened to the disc-shaped rotating frame 9 by screws 8. The structure of the rotating frame 9 is as follows Figures 2 to 7 As shown, the rotating frame 9 is provided with a first threaded through hole 23 and a second threaded through hole 24, the end of the second threaded through hole 24 is provided with a countersunk hole, and the second threaded through hole 24 is consistent in size and coaxial with the threaded blind hole on the end face of the shaft cylinder 22, and a screw 8 is used to cooperate with the second threaded through hole 24 and the threaded blind hole, so as to fix the rotating frame 9 on the shaft cylinder 22. The threaded through hole, the threaded blind hole and the screw 8 are provided in multiple groups to stabilize the connection.

[0035] The rotating frame 9 is connected to the cutter shaft slideway 13 through a connecting bolt. The cutter shaft slideway 13 is an N-shaped structure, and a third threaded through hole is opened on its outer side wall. The first threaded through hole 23 of the rotating frame 9 and the third threaded through hole of the cutter shaft slideway 13 are consistent in size and coaxial. The bolts are matched with the first threaded through hole 23 and the third threaded through hole to realize the connection between the rotating frame 9 and the cutter shaft slideway 13. The closed end surface of the cutter shaft slideway 13 is connected to the cylinder 10 through the connecting plate 14. The cutter frame 12 is slidably connected in the cutter shaft slideway 13, and the telescopic end of the cylinder 10 passes through the cutter shaft slideway 13 and is threadedly connected to the cutter frame 12. The telescopic end of the cylinder 10 is slidably connected to the cutter shaft slideway 13. The cutter frame 12 is equipped with a cutter shaft, and a cutter wheel 11 is rotatably connected to the cutter shaft, and the cutter wheel 11 and the cutter shaft are matched with each other.

[0036] In order to maintain the stability of the gas path of the cylinder 10 when the rotating frame 9 rotates, Figure 1 , Figures 2 to 7As shown, an air dividing ring 5 is further installed between the housing 4 and the shaft cylinder 22. There are two air dividing rings 5 ​​with the same structure, namely the first air dividing ring 501 and the second air dividing ring 502, which correspond to the air inlet pipeline and the air return pipeline respectively. The air dividing ring 5 is annular, and its outer ring surface and inner ring surface are respectively provided with an outer ring groove and an inner ring groove. The inner ring groove and the outer ring groove are connected through a channel. The housing 4 is provided with an air inlet ( Figure 1 B in the middle) and the air outlet ( Figure 1 At D in the middle, the air inlet is connected to the outer ring groove of the first air dividing ring 501, and the air outlet is connected to the outer ring groove of the second air dividing ring 502. The shaft cylinder 22 is provided with a first air inlet and a first air outlet, the first air inlet is connected to the inner ring groove of the first air dividing ring 501, and the first air outlet is connected to the inner ring groove of the second air dividing ring 502. The rotating frame 9 is provided with a second air inlet and a second air outlet, both ends of the second air inlet and the second air outlet are connected to the outside through the airway port 25, the second air inlet is connected to the first air inlet port, a sealing gasket is installed at the joint, and the other port of the second air inlet ( Figure 1 The second outlet is connected to the rear end of the cylinder 10 through a hose, and a sealing gasket is installed at the joint. The other end of the second outlet ( Figure 1 The front end of the cylinder 10 is connected to the air ring 5 at E in the middle through a hose. In order to seal the air dividing ring 5, O-rings are installed between the air dividing ring 5 and the housing 4 and the shaft cylinder 22. There are two bearings 6, which are arranged on the outside of the air dividing ring 5. In order to prevent dust from entering or oil leakage, a hole elastic retaining ring 7 is installed between the housing 4 and the shaft cylinder 22 on the outside of the bearing 6. The air inlet and the air outlet are connected to the air circuit control solenoid valve and then connected to the air source. The air circuit control solenoid valve is connected to the control switch and then connected to the power supply.

[0037] In order to drive the shaft cylinder 22 to rotate, Fig. 9 As shown, a second sprocket 3 is installed on the shaft tube 22, which is driven by a motor 1. The output end of the motor 1 is connected to a reducer, and the output end of the reducer is connected to a first sprocket 2. The outer diameter of the first sprocket 2 is smaller than the outer diameter of the second sprocket 3, and a transmission chain 21 is inserted between the two.

[0038] In order to maintain the stability of the material being cut, Figure 8 , Figures 11 to 13 As shown, a clamping device is provided at the front end of the cutter to clamp the cut material, and the clamping device includes a tube clamp frame 15, on which two sets of clamping cylinders 16 are hoisted horizontally opposite to each other through a cylinder front end fixing block 19, and the telescopic ends of the clamping cylinders 16 are connected to clamping blocks 20 through cylinder connecting blocks 17, and the opposite end surfaces of the two clamping blocks 20 are provided with V-shaped grooves for clamping, and the midpoint of the bottom end connecting line of the two V-shaped grooves is coaxial with the shaft tube 22.

[0039] The working principle of this utility model:

[0040] The copper tube 18 to be cut is passed through the shaft cylinder 22 and placed in the middle of the V-shaped groove of the clamping block 20 . The clamping cylinder 16 is started, and the two clamping blocks 20 move toward each other to clamp the copper tube 18 .

[0041] The air is ventilated to the air inlet of the outer shell 4, and the gas enters the outer ring groove of the first air dividing ring 501 from the air inlet, enters the inner ring groove through the channel, and then enters the first air inlet channel of the shaft tube 22, and then enters the rear end of the cylinder 10 through the second air inlet channel of the rotating frame 9, pushing the cylinder 10 to extend. The gas at the front end of the cylinder 10 enters the second air dividing ring 502 through the second air outlet channel and the first air outlet channel, and then leaves from the air outlet. The cylinder 10 pushes the cutting knife frame 12 to slide along the cutting knife shaft slide 13 until the cutting knife wheel 11 is connected to the copper tube 18.

[0042] The motor 1 is powered on and started. After the motor 1 is decelerated by the reducer, it drives the first sprocket 2 to rotate, and then drives the second sprocket 3 to rotate through the transmission chain 21, so that the shaft cylinder 22 rotates. The shaft cylinder 22 drives the rotating frame 9 to rotate and then drives the cutter shaft slideway 13 and the cutter wheel 11 to rotate to cut the copper tube 18. During the cutting process, the cutter wheel 11 gradually penetrates into the copper tube 18 under the force of the cylinder 10 until the copper tube 18 is cut off. During the rotation of the shaft cylinder 22, the first air inlet and the first air outlet rotate with it. Because the inner ring groove of the air dividing ring 5 is a continuous groove, the first air inlet and the first air outlet can always be connected with the inner ring groove during the rotation process, and then connected with the outer ring groove through the hole, so as to be connected with the air inlet and the air outlet, and the continuity of the air path is maintained.

[0043] After the cutting is completed, the motor 1 is stopped, and air is supplied to the cylinder 10 through the air outlet. The gas at the rear end of the cylinder 10 leaves from the air inlet, so that the cylinder 10 is retracted, and the copper tube 18 at the rear end is removed. The clamping cylinder 16 is controlled to be retracted to loosen the copper tube 18 at the front end, and the copper tube 18 at the front end is removed to complete the cutting.

[0044] The circuits and mechanical connections involved in the present utility model are conventional means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which belong to common knowledge.

[0045] The control methods of the motor 1, the cylinder 10 and the clamping cylinder 16 are all prior arts, and those skilled in the art may refer to teaching materials and relevant product manuals to obtain technical inspiration.

[0046] Components not described in detail herein are prior art.

[0047] 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 cylinder rotation mechanism, comprising a cylinder (10), characterized in that: The cylinder (10) is connected to a rotating frame (9), the rotating frame (9) is connected to a shaft cylinder (22), and further comprises a housing (4), the housing (4) being a ring-shaped structure with a cylindrical inner ring, the shaft cylinder (22) being axially connected to the inner ring surface of the housing (4), and an air dividing ring (5) being connected between the shaft cylinder (22) and the housing (4), the air dividing ring (5) comprising two, namely a first air dividing ring (501) and a second air dividing ring (502), the shaft cylinder (22) having a first air inlet duct, a first air inlet duct, a second air inlet duct, a second air inlet duct, a first ... The rotating frame (9) has a second air inlet and a second air outlet, the first air inlet is connected to the second air inlet, the first air outlet is connected to the second air outlet, the second air inlet and the second air outlet are connected to the cylinder (10), the outer shell (4) has an air inlet and an air outlet, the air inlet is connected to the first air inlet through the first air dividing ring (501), and the air outlet is connected to the first air outlet through the second air dividing ring (502).

2. A cylinder rotating mechanism according to claim 1, characterized in that: The gas dividing ring (5) is an annular structure, with an outer annular groove on its outer annular surface and an inner annular groove on its inner annular surface, the outer annular groove and the inner annular groove being connected via a channel.

3. A cylinder rotating mechanism according to claim 1 or 2, characterized in that: An O-ring is installed between the air dividing ring (5) and the outer shell (4) and the shaft cylinder (22); and a sealing ring is installed between the first air inlet and the second air inlet, and between the first air outlet and the second air outlet.

4. A cylinder rotating mechanism according to claim 3, characterized in that: A bearing (6) is arranged between the shaft cylinder (22) and the housing (4), and two bearings (6) are arranged on both sides of the air dividing ring (5). A hole elastic retaining ring (7) is arranged between the shaft cylinder (22) and the housing (4), and the hole elastic retaining ring (7) is located outside the bearing (6).

5. A cutter based on the cylinder rotating mechanism according to any one of claims 1 to 4, characterized in that: The invention also comprises a motor (1), a cutter shaft slideway (13) and a clamping mechanism, wherein the output end of the motor (1) is connected to a reducer and then to a shaft cylinder (22); the rotating frame (9) and the cylinder (10) are both connected to the cutter shaft slideway (13); a cutter frame (12) is also slidably connected to the cutter shaft slideway (13); the cutter frame (12) and the telescopic end of the cylinder (10) are connected; a cutter wheel (11) is mounted on the cutter frame (12); the clamping mechanism also comprises a clamping cylinder (16) and a clamping block (20); the telescopic end of the clamping cylinder (16) is connected to the clamping block (20).

6. A cutter according to claim 5, characterized in that: There are a plurality of clamping cylinders (16), which are distributed in a circular array and are coaxial with the shaft cylinder (22) around an axis.

7. A cutter according to claim 6, characterized in that: The clamping cylinder (16) is fixed to the tube clamp frame (15) via a cylinder front end fixing block (19).

8. A cutter according to claim 5, characterized in that: The cylinder (10) is connected to the cutter shaft slideway (13) via a connecting plate (14).

9. A cutter according to claim 5, characterized in that: The output end of the reducer is connected to a first transmission wheel, the shaft cylinder (22) is sleeved with a second transmission wheel, and friction transmission is adopted between the first transmission wheel and the second transmission wheel.

10. A cutter according to claim 5, characterized in that: A meshing transmission is adopted between the output end of the reducer and the shaft cylinder (22).

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