CN111496897A

CN111496897A - PVC manages cutting device of inside-out cutting

Info

Publication number: CN111496897A
Application number: CN202010403513.2A
Authority: CN
Inventors: 吴海忠
Original assignee: Hangzhou Rongqi Technology Co ltd
Current assignee: Hangzhou Rongqi Technology Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-08-07

Abstract

The invention discloses a cutting device for cutting PVC pipes from inside to outside, which comprises a processing cavity with an upward opening, wherein a conveying device is arranged in the processing cavity, the conveying device comprises a blanking shaft which is in running fit with the left wall and the right wall of the processing cavity, the blanking shaft is positioned in the processing cavity and is fixedly connected with a conveying wheel, the conveying wheel is provided with pipe grooves which are symmetrical up and down, the pipe grooves can only allow one PVC pipe to enter, the PVC pipe to be cut is placed in the processing cavity, when the cutting of the PVC pipe to be cut is finished, the next PVC pipe can fall and be cut, the cutting device comprises a motor shaft which is in running fit with the wall body of the fixed block, the left end of the motor shaft is fixedly connected with the fixed block, four cutting knives which are in sliding connection are distributed on the right side of the fixed block in an array manner, and cutting racks are fixedly connected in the, the fixed block rotates to drive the cutting knife to cut the PVC pipe.

Description

PVC manages cutting device of inside-out cutting

Technical Field

The invention relates to the technical field of PVC pipe cutting, in particular to a PVC pipe cutting device for cutting from inside to outside.

Background

PVC is (Polyvinylchlorid) for short, the main component is polyvinyl chloride, and due to its superior characteristics, PVC is being utilized in more and more fields, PVC pipes need to be cut when being produced or used, but some PVC pipes are hard and difficult to cut, if the PVC pipes are cut manually, time and labor are wasted, the cuts are uneven, PVC machines for cutting in large quantities on the market generally cut PVC pipes from the outside, and the PVC pipes are generally circular, and due to the arc-shaped structure of the outer side, the contact points of the cut surfaces are unstable, and the cuts are uneven due to external cutting, so that the cuts are rough.

Disclosure of Invention

The invention aims to provide a cutting device for cutting a PVC pipe from inside to outside, which is used for overcoming the defects in the prior art.

The cutting device for cutting the PVC pipe from inside to outside comprises a cutting machine body, wherein a treatment cavity with an upward opening is formed in the cutting machine body, a conveying device is arranged in the treatment cavity and comprises a blanking shaft which is in rotating fit with the left wall and the right wall of the treatment cavity, the blanking shaft is fixedly connected with a conveying wheel which is positioned in the treatment cavity, the conveying wheel is provided with pipe grooves which are symmetrical up and down, only one PVC pipe can enter the pipe grooves, the PVC pipe to be cut is placed into the treatment cavity, after the cut PVC pipe is cut, the next PVC pipe can fall and be cut, a chute with the width of the PVC diameter is arranged below the treatment cavity, a clamping cavity with the width of the PVC pipe diameter is communicated below the chute, a moving groove is arranged below the clamping cavity, a pipe outlet groove is formed in the right lower side of the moving groove and is communicated with the outside of the machine body, a clamping device is arranged in the moving groove, the clamping device comprises an extending shaft which is in running fit with the rear wall of the moving groove, a moving block is in running fit with the moving groove, a lifting groove is formed in the moving block, a lifting block is in running fit with the lifting groove, the lifting block can be driven to move up and down through the rotation of the rotating gear, the moving block can move left and right, so that the functions of conveying and clamping PVC pipes at equal intervals are achieved, a fixed block is fixedly arranged in the right side wall body of the clamping cavity, the fixed block extends leftwards into the clamping cavity, a cutting device is arranged in the fixed block, the cutting device comprises a motor shaft which is in running fit with the wall body of the fixed block, the left end of the motor shaft is fixedly connected with the fixed block, four cutting knives in sliding connection are distributed in the right, the fixed block rotates to drive the cutting knife to cut the PVC pipe.

On the basis of the technical scheme, the clamping device comprises an engaging groove formed in the lifting block, a rotating gear fixedly connected with the extending shaft is engaged in the engaging groove, the tail end of the extending shaft extending backwards is in power connection with a power motor embedded in a wall body, jacking grooves are symmetrically formed in the front and back of the right side of the lifting block, jacking racks are arranged in the jacking grooves in a sliding fit mode, jacking springs are connected between the jacking racks and the bottom walls of the jacking grooves, the jacking racks extend upwards along rack grooves to the clamping cavities to be abutted against front and back side wall bodies on the lower side of the inclined groove, a clamping groove is formed in the end face, close to the center of the lifting block, of each rack groove, a clamping screw rod is rotatably matched between each clamping groove and the rack grooves, and a clamping gear meshed with the one-way block is rotatably matched in each clamping screw rod positioned in the rack grooves, the clamping screw rod is positioned in the clamping groove and is connected with a threaded block in a threaded manner, the threaded block extends upwards out of the movable block and is fixedly connected with a clamping block, the right side of the treatment cavity is provided with a bevel gear meshing cavity, a central shaft is matched between the movable groove and the bevel gear meshing cavity in a rotating manner, the rear side wall body of the movable block is fixedly connected with a pipe dropping rack, the central shaft is positioned in the movable groove and is fixedly connected with a blanking gear meshed with the pipe dropping rack, the central shaft extends upwards into the bevel gear meshing cavity and is matched with an containing block in a rotating manner, a one-way space is arranged in the containing block, the rear side of the one-way space is provided with a one-way groove, a one-way block is matched in the one-way groove in a sliding manner, the front side radius of the one-way block is larger than the rear side radius of the one, the containing block extends upwards to be fixedly connected with an engaging bevel gear, the blanking shaft extends right to an engaging cavity of the bevel gear, the engaging bevel gear is fixedly connected with an engaging bevel gear engaged with the transmission bevel gear, and the transmission ratio of the transmission bevel gear to the engaging bevel gear is five-to-one.

On the basis of the technical scheme, the cutting device also comprises a fixed frame positioned on the right side of the fixed block, a fixed space is arranged in the fixed frame, the motor shaft is fixedly connected with a sun gear in the fixed space, planetary shafts which are in running fit with the wall body of the fixed frame are distributed in the sun wheel in an array manner, the planetary shafts are positioned in the fixed space and are fixedly connected with planetary wheels which are meshed with the sun wheel and the internal teeth of the fixed frame, the planet shaft extends to the right side of the fixed block through the ring groove and is fixedly connected with a cutting gear meshed with the cutting rack, the tail end of the motor shaft extending rightwards is in power connection with a working motor embedded in the wall body, the upper side of the fixed block is provided with a butting groove, the butt joint groove is internally provided with a butt joint block in a sliding fit mode, and a butt joint spring is connected between the butt joint block and the right wall of the butt joint groove.

The invention has the beneficial effects that: the PVC pipe after will producing presss from both sides tight even conveying in back, conveys and to formulate the position back cutting knife will be to the cutting of PVC pipe from the interior, because under the constraint of the intraductal circle of PVC, the cutting will level and more smooth even, has also set up automatic tube falling device, and operating personnel only need can cut in putting into the groove with the PVC pipe.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a cutting device for cutting PVC pipes from inside to outside;

FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;

FIG. 3 is a sectional view taken along line B-B of FIG. 2;

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1;

FIG. 5 is a cross-sectional view taken in the direction D-D of FIG. 1;

FIG. 6 is a cross-sectional view taken along line E-E of FIG. 1;

FIG. 7 is a sectional view taken in the direction F-F in FIG. 6;

fig. 8 is an enlarged view of a portion of the structure at G in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-8, for the sake of convenience, the orientations described hereinafter being defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Referring to fig. 1 to 8, a cutting device for cutting PVC pipes from inside to outside according to an embodiment of the present invention includes a cutting machine body 64, a processing chamber 16 with an upward opening is formed in the cutting machine body 64, a conveying device is disposed in the processing chamber 16, the conveying device includes a blanking shaft 54 rotatably fitted to left and right walls of the processing chamber 16, the blanking shaft 54 is disposed in the processing chamber 16 and fixedly connected with a conveying wheel 14, the conveying wheel 14 is provided with vertically symmetrical pipe slots 15, the pipe slots 15 can only allow one PVC pipe to enter, the PVC pipe to be cut is placed in the processing chamber 16, after the cut PVC pipe is finished, the next PVC pipe falls and is cut, a chute 17 with a PVC diameter width is disposed below the processing chamber 16, a clamping chamber 18 with a PVC pipe diameter width is communicated below the chute 17, a moving groove 19 is disposed below the clamping chamber 18, a pipe outlet groove 24 is formed in the lower right side of the moving groove 19 and communicated with the outside of the machine body, a clamping device is arranged in the moving groove 19 and comprises an extending shaft 26 which is in running fit with the rear wall of the moving groove 19, a moving block 20 is in sliding fit in the moving groove 19, a lifting groove 21 is formed in the moving block 20, a lifting block 22 is in running fit in the lifting groove 21, the lifting block 22 is driven to move up and down through the rotation of the rotating gear 27, the moving block 20 moves left and right at the same time, so that the transmission and clamping functions of PVC pipes at equal intervals are achieved, a fixing block 66 is fixedly arranged in the wall body on the right side of the clamping cavity 18, the fixing block 66 extends leftwards into the clamping cavity 18, a cutting device is arranged in the fixing block 66 and comprises a motor shaft 35 which is in running fit with the wall body of the fixing block 66, and the, four cutting knives 43 in sliding connection are distributed on the right side of the fixing block 40 in an array mode, cutting racks 42 are fixedly connected into the cutting knives 43, and the fixing block 40 can drive the cutting knives 43 to cut PVC pipes through rotation.

In addition, in one embodiment, the clamping device includes an engaging groove 28 formed in the lifting block 22, a rotating gear 27 fixedly connected with the extending shaft 26 is engaged in the engaging groove 28, the extending shaft 26 extends backward and is connected with a power motor 23 embedded in a wall body in a power manner, a pressing groove 29 is symmetrically formed in the front and back of the right side of the lifting block 22, a pressing rack 31 is slidably fitted in the pressing groove 29, a pressing spring 30 is connected between the pressing rack 31 and the bottom wall of the pressing groove 29, the pressing rack 31 extends upward along a rack groove 65 to the inside of the clamping cavity 18 to abut against the front and back side walls on the lower side of the inclined groove 17, a clamping groove 51 is formed in the end surface of the rack groove 65 close to the center of the lifting block 22, a clamping screw 33 is rotatably fitted between the clamping groove 51 and the rack groove 65, the clamping screw 33 is located in the rack groove 65 and is rotatably fitted with a clamping gear 32 engaged with the one-way block 61, the clamping screw 33 is positioned in the clamping groove 51, a threaded block 50 is connected with the threaded block 50 through a thread, the threaded block 50 extends upwards out of the moving block 20 and is fixedly connected with a clamping block 52, the right side of the treatment chamber 16 is provided with a bevel gear meshing chamber 11, a central shaft 56 is rotatably matched between the moving groove 19 and the bevel gear meshing chamber 11, the rear side wall of the moving block 20 is fixedly connected with a tube falling rack 53, the central shaft 56 is positioned in the moving groove 19 and is fixedly connected with a blanking gear 55 meshed with the tube falling rack 53, the central shaft 56 extends upwards to the bevel gear meshing chamber 11 and is rotatably matched with an inclusion block 57, a one-way space 58 is arranged in the inclusion block 57, a one-way groove 62 is arranged at the rear side of the one-way space 58, a one-way block 61 is slidably matched in the one-way groove 62, the front side radius of the one-way block 61 is larger than the rear side radius of the one, the central shaft 56 is located in the unidirectional space 58 and is fixedly connected with a unidirectional abutting block 60, the containing block 57 extends upwards and is fixedly connected with an engaging bevel gear 12, the blanking shaft 54 extends rightwards to the bevel gear engaging cavity 11 and is fixedly connected with an engaging bevel gear 12 engaged with the transmission bevel gear 13, the transmission ratio of the transmission bevel gear 13 to the engaging bevel gear 12 is five-to-one, and when the moving block 20 moves back and forth five times, the conveying wheel 14 rotates for a half turn.

In addition, in one embodiment, the cutting device further includes a fixing frame 37 located on the right side of the fixing block 40, a fixing space 48 is provided in the fixing frame 37, the motor shaft 35 is located in the fixing space 48, a sun gear 36 is fixedly connected to the fixing frame 36, a planet shaft 49 is distributed in the sun gear 36 and is matched with the wall of the fixing frame 37 in a rotating manner, the planet shaft 49 is located in the fixing space 48, a planet gear 39 meshed with the sun gear 36 and meshed with the inner teeth of the fixing frame 37 is fixedly connected to the fixing frame 49, the planet shaft 49 extends to the right side of the fixing block 40 through a ring groove 47, a cutting gear 41 meshed with the cutting rack 42 is fixedly connected to the right side of the motor shaft 35, the tail end of the motor shaft 35 extends to the right side and is connected with a working motor 34 embedded in the wall, a butt joint groove 46 is provided on, an abutting spring 45 is connected between the abutting block 44 and the right wall of the abutting groove 46.

In the initial state, the abutting spring 45 is in a relaxed state, the cutting blade 43 is in a retracted state, the top pressure spring 30 is in a relaxed state, the moving block 20 is positioned at the left side of the moving groove 19, and the rotating gear 27 is positioned at the right upper side of the top pressure groove 29 and is meshed with the meshing groove 28.

When PVC pipes are required to be cut, the working motor 34 is started, an operator puts the PVC pipes to be cut into the processing cavity 16, the power motor 23 is started, the power motor 23 works to drive the rotating gear 27 to rotate clockwise, the rotating gear 27 rotates to enable the moving block 20 to move leftwards and drive the lifting block 22 to move upwards, when the rotating gear 27 moves to the left side of the meshing groove 28, the moving block 20 moves rightwards, meanwhile, the moving block 20 moves forwards and backwards to drive the blanking gear 55 to rotate, the blanking gear 55 rotates to drive the rack groove 65 to rotate, the rack groove 65 rotates to enable the one-way abutting block 60 to rotate, the one-way abutting block 60 rotates in one direction to drive the containing block 57 to rotate together, and the other direction rotates to press the one-way block 61 downwards, at the moment, the containing block 57 does not rotate, when the moving block 20 moves leftwards, the containing block 57 rotates to drive the, the meshing bevel gear 12 rotates to drive the blanking shaft 54 to rotate, so as to drive the conveying wheel 14 to rotate for a certain angle, after the moving block 20 moves back and forth for five times, the pipe groove 15 containing one PVC pipe rotates to the lower side, the first PVC pipe falls into the clamping cavity 18, then the pipe groove 15 is loaded with another PVC pipe to be cut and starts to rotate, after the PVC pipe falls into the clamping cavity 18, the rotating gear 27 rotates to the lower right side, at the moment, the lifting block 22 rises, the jacking rack 31 is driven to rise to jack the wall body above the clamping cavity 18, so as to drive the jacking rack 31 to fall in the jacking groove 29, so that the clamping gear 32 rotates, the clamping lead screw 33 is driven by the clamping gear 32 to rotate, so that the clamping blocks 52 are close to the clamped PVC pipe, the moving block 20 clamps the PVC pipe and moves right until the butting block 44 is completely jacked into the butting groove 46, at the power motor 23 is turned off, the extending shaft 26 is positioned at the lower left, the PVC pipe is still in a clamping state, the PVC pipe is sleeved in the fixed block 66, at the moment, the working motor 34 is started, the working motor 34 rotates to drive the sun wheel 36 to rotate, the sun wheel 36 rotates to drive the planet wheel 39 to rotate and circulate, simultaneously, the sun wheel 36 drives the fixed block 40 to rotate, the planet shaft 49 rotates to drive the cutting gear 41 to rotate so as to drive the cutting rack 42 to rotate, so that the cutting knife 43 extends out of the machine body, due to the reason of the modulus difference, the fixed block 40 rotates at a high speed, the cutting knife 43 slowly extends out of the fixed block 40 to uniformly cut the PVC pipe, after the PVC pipe is completely cut, the PVC pipe with the wall cut abuts against the PVC pipe which is not cut due to the abutting spring 45, the working motor 34 is reversely rotated, the cutting knife 43 is accommodated in the fixed block 40, the power motor 23 is restarted, the rotating gear 27 moves towards the upper left side, the lifting block 22 moves downwards, the PVC pipe is loosened, and, the moving block 20 continuously moves leftwards, at this time, under the action of the abutting block 44, the PVC pipe falls into the pipe outlet groove 24, the extending shaft 26 moves to the upper right side, the moving block 20 returns to the left side of the moving groove 19 again, then uniform cutting is repeated, after five times, the PVC pipe is cut completely, and the next PVC pipe falls into the clamping cavity 18 for repeated action.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a PVC manages cutting device of inside to outside cutting, includes the cutting organism, its characterized in that: the cutting machine is characterized in that a processing cavity with an upward opening is formed in the cutting machine body, a conveying device is arranged in the processing cavity and comprises a blanking shaft which is in running fit with the left wall and the right wall of the processing cavity, the blanking shaft is positioned in the processing cavity and fixedly connected with a conveying wheel, the conveying wheel is provided with vertically symmetrical pipe grooves, the pipe grooves can only allow one PVC pipe to enter, the PVC pipe to be cut is placed into the processing cavity, the next PVC pipe can fall and be cut after the cut PVC pipe is finished, chute with the width of PVC diameter is arranged below the processing cavity, a clamping cavity with the width of PVC pipe diameter is communicated below the chute, a moving groove is arranged below the clamping cavity, a pipe outlet groove is formed in the lower right side of the moving groove and communicated outside the machine body, a clamping device is arranged in the moving groove and comprises an extending shaft which is in running fit with the rear wall of the moving groove, sliding fit has the movable block in the shifting chute, lifting chute has been seted up in the movable block, sliding fit has the lifter in the lifting chute, through the running gear rotates, can drive the lifter reciprocates, simultaneously the movable block can remove about to accomplish conveying and the tight function of clamp equidistant to the PVC pipe, the fixed block of clamp chamber right side wall body internal fixed mounting has the fixed block, the fixed block extends to left in the clamp chamber, be provided with cutting device in the fixed block, cutting device include with fixed block wall body normal running fit's motor shaft, the terminal fixedly connected with fixed block in motor shaft left side, four sliding connection's of fixed block right side array distribution cutting knife, fixedly connected with cutting rack in the cutting knife, the fixed block rotates and to drive the cutting knife cuts the PVC pipe.

2. The PVC pipe inside-out cutting device according to claim 1, wherein: the clamping device comprises a meshing groove formed in the lifting block, a rotating gear fixedly connected with the extending shaft is meshed in the meshing groove, the extending shaft extends backwards, the tail end of the extending shaft is connected with a power motor embedded in a wall body in a power mode, jacking grooves are symmetrically formed in the front and back of the right side of the lifting block, jacking racks are in sliding fit in the jacking grooves, jacking springs are connected between the jacking racks and the bottom walls of the jacking grooves, the jacking racks extend upwards along rack grooves to the clamping cavities to be abutted against front and back side wall bodies on the lower side of the inclined groove, clamping grooves are formed in the end faces, close to the center of the lifting block, of the rack grooves, clamping screw rods are in rotating fit between the clamping grooves and the rack grooves, clamping gears meshed with the one-way blocks are in rotating fit in the rack grooves, and threaded blocks are connected in the clamping grooves in a threaded mode, the thread block extends upwards out of the moving block and is fixedly connected with a clamping block, the right side of the processing chamber is provided with a bevel gear meshing chamber, a central shaft is rotatably matched between the moving groove and the bevel gear meshing chamber, the rear side wall body of the moving block is fixedly connected with a tube dropping rack, the central shaft is positioned in the moving groove and is fixedly connected with a blanking gear meshed with the tube dropping rack, the central shaft extends upwards into the bevel gear meshing chamber and is rotatably matched with an containing block, a one-way space is arranged in the containing block, a one-way groove is arranged at the rear side of the one-way space, a one-way block is slidably matched in the one-way groove, the front side radius of the one-way block is larger than the rear side radius, a one-way spring is connected between the one-way block and the bottom wall of the one-way groove, the central shaft is positioned in the, the blanking shaft extends right to the bevel gear meshing cavity, a meshing bevel gear meshed with the transmission bevel gear is fixedly connected in the meshing cavity, and the transmission ratio of the transmission bevel gear to the meshing bevel gear is five to one.

3. The PVC pipe inside-out cutting device according to claim 2, wherein: cutting device is still including being located the mount on fixed block right side, be provided with fixed space in the mount, the motor shaft is located fixedly connected with sun gear in the fixed space, array distribution in the sun gear with mount wall body normal running fit's planet axle, the planet axle is located fixedly connected with in the fixed space with sun gear meshing and with mount internal toothing's planet wheel, the planet axle extends to through the annular fixed block right side fixedly connected with cutting rack toothing's cutting gear, the motor shaft extends terminal power connection right and has the work motor that inlays in the wall body, the butt groove has been seted up to the fixed block upside, butt inslot sliding fit has the butt piece, the butt piece with be connected with the butt spring between the butt groove right wall.