CN102166603A - A rotary extrusion sealing device for a pipe fitting sealing machine - Google Patents

Abstract

The utility model provides a crowded closing device soon of pipe fitting capper which characterized in that: the spindle is driven to rotate by a spindle driving mechanism, the sealing cutter slides in the direction perpendicular to the axis of the spindle under the guidance of the sealing cutter guiding mechanism to be close to or far away from the axis of the spindle, and the cutter moving mechanism drives the sealing cutter to slide along the sealing cutter guiding mechanism. The invention has the following advantages: 1. the main shaft driving mechanism drives the main shaft to drive the cutter disc to rotate, so that the sealing cutter rotates around the circumference of the main shaft; meanwhile, the cutter moving mechanism drives the sealing cutter to slide along the sealing cutter guide mechanism, so that the sealing cutter slides along the direction perpendicular to the axis of the main shaft to be close to or far away from the axis of the main shaft, the opening end of the pipe to be processed can be sealed by rotary extrusion, a sealing wall perpendicular to the side wall of the pipe to be processed is finally formed, the thickness of the sealing wall is consistent, and the sealing effect is good. 2. The whole rotary extrusion sealing device is simple and compact in structure and convenient to control.

Description

A rotary extrusion sealing device for a pipe fitting sealing machine

technical field

The invention relates to a rotary extrusion sealing device of a pipe fitting sealing machine.

Background technique

The sealing device of the existing sealing machine mainly includes the main shaft and the tool inclined at the front end of the main shaft. The tool can only be fed along the axial direction of the main shaft, and cannot rotate around the main shaft and move along the direction perpendicular to the main shaft at the same time. When the end is sealed, it is difficult to form a sealing wall perpendicular to the side wall of the metal tube, and the thickness of the sealing wall also has the defect of uneven thickness, the sealing effect is poor, and the service life of the metal tube is affected.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention provides a rotary extrusion sealing device of a sealing machine, the sealing knife of which can rotate around the main shaft and move in a direction perpendicular to the main shaft at the same time.

Technical scheme of the present invention is realized like this:

A rotary extrusion sealing device for a pipe fitting sealing machine, characterized in that it includes a main shaft, a cutter head arranged at the front end of the main shaft, a sealing knife arranged on the cutter head, a sealing knife guiding mechanism and a knife moving mechanism, and the main shaft is driven by the main shaft driving mechanism When rotating, the sealing knife slides along the direction perpendicular to the axis of the main shaft under the guidance of the sealing knife guiding mechanism to approach or move away from the axis of the main axis, and the knife moving mechanism drives the sealing knife to slide along the sealing knife guiding mechanism.

The present invention has the following advantages: 1. The main shaft driving mechanism drives the main shaft to drive the cutter head to rotate, so that the sealing knife rotates around the main shaft; at the same time, the knife moving mechanism drives the sealing knife to slide along the sealing knife guiding mechanism, so that the sealing knife is perpendicular to the main shaft The direction of the axis slides to be close to or away from the spindle axis, so that the open end of the pipe to be processed can be sealed by rotary extrusion, and finally a sealing wall perpendicular to the side wall of the pipe to be processed is formed, and the thickness of the sealing wall is consistent, and the sealing effect is good. 2. The entire rotary extrusion sealing device has a simple and compact structure and is easy to control.

The sealing knife guide mechanism includes a guide groove on the cutter head, a slide bar and a knife seat, the guide groove is recessed on the end face of the cutter head, the knife seat is arranged in the guide groove, the slide bar is fixed on the inner side wall of the guide groove and embedded in the knife On the side wall of the seat, the slide bar is perpendicular to the axis of the main shaft, the knife seat slides along the slide bar and the guide groove, and the sealing knife is fixed on the front surface of the knife seat. The structure is simple, and the sealing knife can move freely under the guidance of the sealing knife guiding mechanism.

The above-mentioned knife moving mechanism includes a first connecting rod, a shift fork, a second connecting rod, a sliding sleeve, a central rod and a driving member of the central rod. A hinged shaft is pivotally arranged on the cutterhead, the hinged shaft is located at the junction of the front shifting arm and the rear shifting arm, the extension end of the front shifting arm is hinged with one end of the first connecting rod, and the other end of the first connecting rod is hinged with the knife seat , the extension end of the rear shift arm is hinged with one end of the second connecting rod, the other end of the second connecting rod is hinged with the sliding sleeve, the sliding sleeve, the central rod and the driving part of the central rod are coaxial with the main shaft, and the sliding sleeve can slide axially The central rod can be axially slid through the hollow of the main shaft, the front end of the central rod is fixed with the sliding sleeve, the rear end of the central rod is exposed from the main shaft and connected with the driving part of the central rod, and the central rod drives The part can drive the central rod to move along the main shaft. The structure is simple, and the movement of the sealing knife can be conveniently controlled by the knife moving mechanism.

Two knife seats are arranged in the guide groove, and a sealing knife is respectively fixed on the two knife seats; the knife moving mechanism includes two first connecting rods, two shift forks, and two second connecting rods, each The knife seat is connected and driven by a first connecting rod, a shift fork and a second connecting rod and the sliding sleeve respectively, and the first group of knife seats, the first connecting rod, the shift fork, the second connecting rod and the second group of knife seats, The first connecting rod, the shift fork and the second connecting rod are arranged symmetrically. The structure is simple, the layout is reasonable, and when the sealing knife is arranged symmetrically, it can ensure that the force on the end of the pipe to be processed is balanced when the sealing knife slides to the center of the spindle, which is conducive to the formation of a sealing wall that is perpendicular to the side wall and has the same thickness. The sealing effect is good.

The main shaft is pivotally arranged on the frame of the sealing machine and positioned axially, and the main shaft driving mechanism is connected with the rear end of the main shaft. The structure is simple and the layout is reasonable.

The main shaft driving mechanism includes a motor and a belt transmission mechanism, the motor is fixed in the sealing machine frame, the driving wheel of the belt transmission mechanism is fixed on the shaft of the motor, and the driven wheel of the belt transmission mechanism is fixed at the rear end of the main shaft. Simple structure and convenient control.

Description of drawings

Fig. 1 is the structural representation of rotary extrusion sealing device of the present invention;

Fig. 2 is a sectional view of the C-C structure in Fig. 1 .

Fig. 3 is an assembly structure diagram of the cutter head, the sealing knife and the knife moving mechanism of the present invention.

Fig. 4 is the perspective view of the sealing machine applying the rotary extrusion sealing device of the present invention;

Fig. 5 is the front view of sealing machine;

Fig. 6 is the A-A sectional view of Fig. 4;

Fig. 7 is the B-B sectional view of Fig. 5;

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Figures 1 to 3, a rotary extrusion sealing device for a pipe sealing machine includes a main shaft 2 pivotally arranged on the sealing machine frame 1 and positioned axially, a cutter head 5 arranged at the front end of the main shaft 2, and a The sealing knife 51 on the cutter head 5, the sealing knife guiding mechanism and the knife moving mechanism, the main shaft 2 is driven to rotate by the main shaft driving mechanism, and the sealing knife 51 slides along the direction perpendicular to the axis of the main shaft 2 under the guidance of the sealing knife guiding mechanism. Close to or away from the axis of the main shaft, the knife moving mechanism drives the sealing knife 51 to slide along the sealing knife guiding mechanism. The sealing knife guide mechanism includes a guide groove 50 on the cutter head 5, two upper and lower slide bars 52 and two symmetrically arranged knife seats 53, the guide groove 50 is recessed on the end surface of the cutter head 5, and the knife holder 53 is located on the guide groove 50, the upper and lower sliding bars 52 are respectively fixed on the upper and lower inner walls of the guide groove 50 and respectively embedded in the side walls of the two tool holders 53, the sliding bar 52 is perpendicular to the axis of the main shaft 2, and the tool holder 53 slides along the sliding bar 52 and the guide groove 50 , The front surfaces of the two knife seats 53 are respectively fixed with a pocket knife 51 .

The knife moving mechanism 54 includes two symmetrically arranged first connecting rods 541, two symmetrically arranged shift forks 542, two symmetrically arranged second connecting rods 543, a sliding sleeve 544, a central rod 545 and a central rod driving member , the shift fork 542 is formed by connecting the front shift arm and the rear shift arm and is hook-shaped. The shift fork 542 is pivotally arranged on the cutter head 5 through a hinge shaft. The hinge shaft is located at the joint between the front shift arm and the rear shift arm. The extended end of the dial arm is hinged with one end of the first connecting rod 541, the other end of the first connecting rod 541 is hinged with the knife seat 53, the extended end of the rear dialed arm is hinged with one end of the second connecting rod 543, and the second connecting rod 543 The other end of the other end is hinged with the sliding sleeve 544, so that each knife holder 53 is connected and driven with the sliding sleeve 544 through a first connecting rod 541, a shift fork 542 and a second connecting rod 543; sliding sleeve 544, center rod 545 and The tool moving shaft 546 is coaxial with the main shaft 2, the sliding sleeve 544 can be axially slidably inserted into the hollow of the main shaft 2, the central rod 545 can pass through the hollow of the main shaft 2 axially, and the front end of the central rod 545 and the sliding sleeve 544 is fixed, and the sliding sleeve 544 can rotate relative to the central rod 545. The rear end of the central rod 545 is exposed from the main shaft 2 and connected with the central rod driver, and the central rod driver can drive the central rod 545 to move along the main shaft 2.

The main shaft driving mechanism 3 is connected with the rear end of the main shaft 2, the main shaft driving mechanism 3 includes a motor 31 and a belt transmission mechanism, the motor 31 is fixed in the frame 1, the driving wheel 32 of the belt transmission mechanism is fixed on the shaft of the motor 31, and the belt transmission mechanism is fixed on the shaft of the motor 31. The driven wheel 33 of the transmission mechanism is fixed on the main shaft 2 rear end.

As shown in Figures 4 to 7, a sealing machine using the above-mentioned rotary extrusion sealing device includes a frame 1, a controller (not shown in the figure), a main shaft 2, a main shaft driving mechanism 3 and a clamping machine to be processed. The workpiece clamping device 4, the main shaft 2 is pivoted on the shaft seat 14 of the frame 1 and positioned axially, the mold of the clamping device 4 is on the same axis as the main shaft 2 and is close to the front end of the main shaft 2, and the front end of the main shaft 2 is fixed with a cutter head 5. The rear end of the main shaft 2 is connected to the main shaft driving mechanism 3, and the main shaft driving mechanism 3 drives the main shaft 2 to rotate; the cutter head 5 is provided with a sealing knife 51 and a sealing knife guiding mechanism, and the sealing knife 51 is guided by the sealing knife guiding mechanism along a vertical direction. Sliding in the direction of the axis of the main shaft 2 and approaching or away from the axis of the main shaft 2, a knife moving mechanism 54 is provided on the frame 1 or the cutter head 5, and the knife moving mechanism 54 drives the sealing knife 51 to slide along the sealing knife guiding mechanism; the frame 1 There is a material shifting device between the clamping device 4 , which drives the clamping device 4 to slide along the axis of the main shaft 2 so that the clamping device 4 approaches or moves away from the end surface of the cutter head 5 .

Above-mentioned main shaft driving mechanism 3 comprises motor 31 and belt transmission mechanism, and motor 31 is fixed in the frame 1, and the driving wheel 32 of belt transmission mechanism is fixed on the axle of motor 31, and the driven wheel 33 of belt transmission mechanism is fixed on main shaft 2 rear end .

The above-mentioned sealing knife guide mechanism includes a guide groove 50 on the cutter head 5, two upper and lower slide bars 52 and two symmetrically arranged knife seats 53, the guide groove 50 is recessed on the end surface of the cutter head 5, and the knife holder 53 is located on the guide groove 50 Inside, the upper and lower slide bars 52 are respectively fixed on the upper and lower inner side walls of the guide groove 50 and embedded in the side walls of the two tool holders 53 respectively. The slide bar 52 is perpendicular to the axis of the main shaft 2, and the tool holder 53 slides along the slide bar 52 and the guide groove 50. A pocket knife 51 is respectively fixed on the front surfaces of the two knife seats 53 .

The knife moving mechanism 54 includes two symmetrically arranged first connecting rods 541, two symmetrically arranged shift forks 542, two symmetrically arranged second connecting rods 543, a sliding sleeve 544, a central rod 545 and a central rod driver, The driving part of the center rod includes the knife moving shaft 546, the knife moving slide plate 547, the knife moving guide mechanism and the knife moving driving mechanism. The shaft is pivotally arranged on the cutter head 5, and the hinge shaft is located at the joint between the front shift arm and the rear shift arm. The extension end of the front shift arm is hinged to one end of the first connecting rod 541, and the other end of the first connecting rod 541 is connected to the knife seat. 53 is hinged, the extension end of the rear dial arm is hinged with one end of the second connecting rod 543, and the other end of the second connecting rod 543 is hinged with the sliding sleeve 544, so that each knife holder 53 passes through a first connecting rod 541 and a dial respectively. The fork 542 and a second connecting rod 543 are connected to the sliding sleeve 544 for transmission; the sliding sleeve 544, the central rod 545 and the knife moving shaft 546 are coaxial with the main shaft 2, and the sliding sleeve 544 can be axially slidably inserted into the hollow of the main shaft 2, The central rod 545 can axially slide through the hollow of the main shaft 2. The front end of the central rod 545 is fixed to the sliding sleeve 544, and the sliding sleeve 544 can rotate relative to the central rod 545. The rear end of the central rod 545 is exposed from the main shaft 2 and It is fixed with the moving knife shaft 546 in the central rod driver, and the moving knife shaft 546 is pivotally arranged on the bearing seat 5472 of the moving knife slide plate 547 and is axially positioned; the moving knife guiding mechanism includes a moving knife arranged on the frame 1 The sliding seat 5471 fixed at the bottom of the guide rail 12 and the moving knife sliding plate 547, the moving knife driving mechanism drives the moving knife sliding plate 547 to slide along the axis direction of the main shaft 2 on the moving knife guide rail 12 through its sliding seat 5471, so that the moving knife sliding plate 547 approaches or Away from the rear end of the main shaft 2, the knife moving drive mechanism includes a servo motor 71 controlled by the controller, a reducer 72, a belt transmission mechanism and a ball screw nut pair, the servo motor 71 and the reducer 72 are fixed in the frame 1, The shaft of the servo motor 71 is connected to the input shaft of the reducer 72, the driving wheel 73 with transmission mechanism is fixed on the output shaft of the reducer 72, and the driven wheel 74 with transmission mechanism is fixed on the lead screw 75 of the ball screw nut pair The leading screw 75 is pivotally arranged on the positioning bearing seat 11 of the frame 1, and the nut 76 of the ball screw nut pair is fixed with the knife moving slide plate 547.

The above-mentioned material transfer device includes a material transfer slide plate 61, a material transfer guide mechanism and a material transfer drive mechanism, and the above-mentioned clamping device 4 includes a lower mold base 41, an upper mold base 42 and a mold base located outside the frame and acting on the frame. The driving cylinder 43 of the upper mold base, the upper mold base 42 and the lower mold base 41 are respectively provided with a relative semicircular clamp 421 and 411 in a detachable manner, wherein the lower mold base 41 is fixed on the material transfer slide 61 , There is a guide rod 44 between the upper mold base 42 and the lower mold base 41, the upper mold base 42 can approach or move away from the lower mold base 41 along the guide rod 44 under the action of the driving cylinder 43, thereby loosening or clamping The workpiece to be processed. For workpieces to be processed with different outer diameters, only the corresponding clamps 421 and 411 need to be replaced to seal the workpieces to be processed with different outer diameters. The material shifting drive mechanism drives the material shifting slide plate 61 to slide along the material shifting guide mechanism, thereby driving the clamping device 4 to slide along the axial direction of the main shaft 2 to approach or stay away from the sealing knife 53; The material transfer guide rail 62 on the top and the slide seat 63 fixed at the bottom of the clamping device 4, the material transfer slide plate 61 slides along the axis direction of the main shaft 2 on the material transfer guide rail 62 through the slide seat 63; the material transfer drive mechanism includes a controlled Servomotor 64, reducer 65, belt transmission mechanism and ball screw nut pair controlled by the servomotor, the servomotor 64 and the reducer 65 are fixed in the frame 1, the shaft of the servomotor 64 is connected with the input shaft of the reducer 65, and the belt The driving wheel 66 of the transmission mechanism is fixed on the output shaft of the reducer 65, the driven wheel 67 with the transmission mechanism is fixed on the lead screw 68 of the ball screw nut pair, and the lead screw 68 is pivotally arranged on the bearing seat 13 of the frame 1 , The nut 69 of the ball screw nut pair is fixed with the material shifting slide plate 61.

The sealing machine of the present invention carries out the method for sealing processing workpieces such as pipe fittings, comprising the following steps:

A. Provide a pipe body with an open end;

B. Use the clamping device to clamp the pipe body;

C. Provide a main shaft, one end of the main shaft is fixed with a cutter head facing the opening end of the pipe body, the cutter head is provided with a sealing knife, and the main shaft is driven to rotate by means of the above-mentioned main shaft driving mechanism, thereby driving the sealing knife to rotate at a high speed;

D. Drive the clamping device to slide along the axis of the main shaft by means of the material shifting device arranged below the clamping device, so that the clamping device drives the pipe body to move along the axis of the main shaft and approach the sealing knife. At the same time, use the above-mentioned moving The knife mechanism drives the sealing knife to slide along the sealing knife guiding mechanism set in the cutter head and is perpendicular to the main shaft, so that the sealing knife slides along the direction perpendicular to the main shaft axis and close to the main shaft axis, so that the sealing knife slides from the outside of the open end of the pipe body. Squeeze the open end of the pipe body from the edge to the center, and repeat the extrusion several times until the open end of the pipe body forms the shape required by the design.

E. The clamping device is driven to slide along the spindle axis by means of the above-mentioned material shifting device, so that the clamping device drives the pipe body away from the sealing knife, and the sealed pipe is returned to the next process.

The above is only an illustration of a specific embodiment of the present invention, and any equivalent transformation or modification made according to the design concept of the present invention shall be deemed to fall within the protection scope of the present invention.

Claims (6)

1. a pipe fitting sealing machine revolves squeeze seal mouth device, it is characterized in that: comprise main shaft, be located at front-end of spindle cutterhead, be located at sealing cutter, seal the cutter guiding mechanism and moving cutter mechanism on the cutterhead, main shaft orders about rotation by main shaft drives mechanism, seal cutter in the guiding lower edge of sealing the cutter guiding mechanism perpendicular to the direction slippage of main-shaft axis near or away from main-shaft axis, move cutter mechanism and drive and to seal cutter along sealing the slippage of cutter guiding mechanism.

2. a kind of pipe fitting sealing machine according to claim 1 revolve squeeze seal mouth device, it is characterized in that: the described cutter guiding mechanism that seals comprises guide groove, draw runner and tool rest on the cutterhead, guide groove is arranged with in the cutterhead end face, tool rest is located in the guide groove, draw runner is fixed on the madial wall of guide groove and embeds the tool rest sidewall, draw runner is vertical with main-shaft axis, and tool rest seals cutter and is installed in the tool rest front surface along draw runner and guide groove slippage.

3. a kind of pipe fitting sealing machine according to claim 1 and 2 revolve squeeze seal mouth device, it is characterized in that: the above-mentioned cutter mechanism that moves comprises first connecting rod, shift fork, second connecting rod, sliding sleeve, center-pole and center-pole actuator, shift fork is formed by connecting and is by preceding group of arm and back group arm and colludes shape, shift fork is hubbed on the cutterhead by a jointed shaft, dial arm before this jointed shaft is positioned at and dial the arm junction with the back, the elongated end of preceding group arm and an end of first connecting rod are hinged, the other end and the tool rest of first connecting rod are hinged, the elongated end of back group arm and an end of second connecting rod are hinged, the other end and the sliding sleeve of second connecting rod are hinged, sliding sleeve, center-pole and center-pole actuator and main shaft coaxial line, but sliding sleeve axial slip ground inserts the middle vacancy of main shaft, but pass the middle vacancy of main shaft the center-pole axial slip, center-pole front end and sliding sleeve are fixed, the rear end of center-pole is exposed from main shaft and is connected with the center-pole actuator, and the center-pole actuator can drive center-pole along main axle moving.

4. a kind of pipe fitting sealing machine according to claim 3 revolve squeeze seal mouth device, it is characterized in that: be provided with two tool rests in the described guide groove, be fixed with one respectively on two tool rests and seal cutter; The described cutter mechanism that moves comprises two first connecting rods, two shift forks, two second connecting rods, each tool rest connects transmission by a first connecting rod, a shift fork and a second connecting rod with sliding sleeve respectively, first group of tool rest, first connecting rod, shift fork, second connecting rod and second group of tool rest, first connecting rod, shift fork, second connecting rod symmetric arrangement.

5. a kind of pipe fitting sealing machine according to claim 4 revolve squeeze seal mouth device, it is characterized in that: described main shaft is hubbed on the sealing machine frame and axial location, described main shaft drives mechanism connects with rear-end of spindle.

6. a kind of pipe fitting sealing machine according to claim 5 revolve squeeze seal mouth device, it is characterized in that: described main shaft drives mechanism comprises motor and tape handler, motor is fixed in the sealing machine frame, the driving wheel of tape handler is fixed on the axle of motor, and the driven pulley of tape handler is fixed on rear-end of spindle.

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