CN112828068A

CN112828068A - Automatic pipe washing production method for cosmetic pipe fitting

Info

Publication number: CN112828068A
Application number: CN202011536590.1A
Authority: CN
Inventors: 王林
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-05-25

Abstract

The invention relates to an automatic tube punching production method for a cosmetic tube, which comprises the steps of guiding a blank aluminum ingot into a vibration disc of blank feeding equipment, and guiding a single blank aluminum ingot onto a material distribution rotary disc; performing a tube punching operation on the blank aluminum ingot on the material distribution turntable; leading out the blank pipe fitting formed by the punching pipe into the material receiving pipe; starting a pipe cutting tool of pipe cutting equipment, and carrying out cutting operation on a pipe orifice at one end of a blank pipe in a butt joint pipe; guiding the cut blank pipe into a discharging device, and discharging the blank pipe; starting a circulating conveying chain of the polishing equipment, so that a polishing discharge head of the polishing equipment performs insertion operation on blank pipes at an outlet position of the discharge equipment, and transfers the blank pipes to a polishing mechanism for polishing operation; unloading a polishing discharge head of the polishing equipment; the automatic pipe flushing production method for the cosmetic pipe fitting can effectively improve the production efficiency of the cosmetic pipe fitting.

Description

Automatic pipe washing production method for cosmetic pipe fitting

Technical Field

The invention relates to the field of production of cosmetic raw materials, in particular to an automatic pipe punching production method for a cosmetic pipe fitting.

Background

Among the cosmetics packaging, such as in the packing of lipstick class cosmetics, adopt tubular product of tubular product or macromolecular material to pack more, the tubular product is mostly the aluminium alloy material punching press and makes, among the prior art, when carrying out the punching press operation to the tubular product, because the tubular product diameter is less relatively, welding seam or crack can not appear in the lipstick outer wall to very high to lipstick shaping quality, can't adopt welded mode production, adopt stamping die to carry out stamping forming more. In the actual forming process, the progressive die is adopted for production, when in actual stamping, a plurality of metal strips of the blank are sheared into sections through the plate shearing equipment, and are guided into the progressive die for stamping forming, and then the red tube blank at the outlet of the blank is formed, so that the efficiency in the forming is integrally low, the progressive die is stamped and formed, and the red tube blank is required to be independently guided into the polishing equipment for polishing, so that the production efficiency of the red tube raw material is integrally low.

Disclosure of Invention

The invention aims to provide an automatic pipe punching production method for a cosmetic pipe fitting, which can effectively improve the production efficiency of the cosmetic pipe fitting.

The technical scheme adopted by the invention is as follows:

the automatic pipe punching production method for the cosmetic pipe fittings comprises the following steps:

firstly, guiding blank aluminum ingots into a vibration disc of blank feeding equipment, and starting the vibration disc to guide a single blank aluminum ingot out to a material distribution rotary disc of the blank feeding equipment;

secondly, starting a punch of the tube punching equipment, so that the punch moves vertically and performs tube punching operation on blank aluminum ingots on the material distribution turntable;

thirdly, starting the material distribution turntable to rotate, so that the blank pipe fitting formed by the pipe punching is led out to a material receiving pipe of the pipe punching equipment, and the material receiving operation of the blank pipe is implemented;

fourthly, starting a pipe cutting tool of the pipe cutting equipment, and implementing cutting operation of a pipe orifice at one end of the blank pipe in the butt joint pipe;

fifthly, guiding the cut blank pipe into a discharging device, and discharging the blank pipe;

sixthly, starting a circulating conveying chain of the polishing equipment, so that a polishing discharge head of the polishing equipment performs insertion operation on blank pipes at the outlet position of the discharge equipment, and transfers the blank pipes to a polishing mechanism for polishing operation;

and seventhly, starting a discharging mechanism of the polishing equipment to discharge the polishing discharging head of the polishing equipment.

The invention also has the following features:

the blank feeding device comprises a vibrating disc, a constraint channel is arranged at the outlet of the vibrating disc, a material distribution mechanism is arranged at the outlet of the constraint channel and used for distributing blanks led out from the constraint channel, so that the blanks are kept at intervals, and a constraint mechanism is arranged on the material distribution mechanism and used for clamping and positioning a single blank.

The restraint channel is integrally of a groove plate-shaped structure, a baffle plate is arranged at the outlet of the restraint channel, a round opening through which a single blank passes is formed in the outlet of the restraint channel, the material distribution mechanism comprises a material distribution turntable arranged below the round opening, the disc surface of the material distribution turntable is horizontally arranged, material receiving grooves are formed in the disc surface of the material distribution turntable, and the material receiving grooves are distributed in a plurality at equal intervals along the circumferential direction of the material distribution turntable.

A guide pipe is arranged below the circular opening, the guide pipe is vertical, the lower end of the guide pipe is close to the upper disc surface of the material distribution turntable, the groove depth of the material receiving groove is slightly smaller than the thickness of a single blank, and the distance between the lower pipe opening of the guide pipe and the upper disc surface of the material distribution turntable is smaller than or equal to the thickness of the single blank.

The pipe punching equipment comprises a vertically arranged punch head, a drawing forming pipe is arranged below a material receiving groove of the material distribution rotary table, the drawing forming pipe and the material receiving groove are concentrically arranged, a push rod is arranged in a pipe cavity of the drawing forming pipe, the push rod is matched with the inner diameter of the drawing forming pipe and slides along the length direction of the drawing forming pipe, and the punch head vertically moves and forms splicing fit with the drawing forming pipe so as to perform pipe punching operation on a blank on the material receiving groove.

The upper end of the ejector rod is a plane, the material receiving groove where the material distributing rotary disc is located is of a through hole-shaped structure, the upper end of the ejector rod and the hole wall of the through hole form the material receiving groove, the lower end of the ejector rod extends out of the drawing forming pipe and is arranged on the rack ring in a sliding mode, the ejector rod is sleeved with a jacking spring, and two ends of the jacking spring are respectively abutted against the rod body of the jacking rod and the rack ring.

The material distributing turntable is in an intermittent rotating state, the ejector rod is arranged on the lifting mechanism, and the lifting mechanism drives the ejector rod to slide along the drawing forming pipe and enables the upper end of the ejector rod to extend out of the notch of the material receiving groove.

The lower end of the ejector rod is provided with a jacking ball, the lifting mechanism comprises a jacking ring arranged at the lower end of the ejector rod, a jacking lug is arranged on the jacking ring, the jacking lug is in smooth transition with the upper ring surface of the jacking ring, when the jacking ball is abutted against the jacking lug, the upper end of the ejector rod extends out of the notch position of the material receiving groove, and the jacking ring and the material distributing turntable are concentrically arranged.

And a limiting unit is arranged above the material distribution turntable and used for limiting the formed pipe fittings ejected by the ejector rods.

The limiting unit comprises a limiting arc plate arranged above the material distribution turntable, and the lower plate surface of the limiting arc plate is close to the material distribution turntable and the lower plate surface of the finished pipe fitting and the limiting arc plate are abutted.

Divide the lower wall face center of material carousel to be provided with the actuating lever, the actuating lever rotary type sets up in the washing pipe frame, the rod end of actuating lever is provided with drive gear, drive gear and drive worm cooperation, drive worm level just is connected with driving motor.

The punching head is arranged on the limiting arc plate in a sliding mode, the upper end of the punching head is arranged on the driving beam, the driving beam is vertically arranged on the driving truss in a sliding mode, the driving truss is provided with a punching oil cylinder, and the punching oil cylinder is vertical and a piston rod is connected with the driving beam.

An avoiding notch is formed in the jacking ring, and the punch is arranged above the avoiding notch.

The upper position of the material distribution turntable is provided with a pipe connection mechanism, the pipe connection mechanism is used for positioning and clamping cosmetic pipe fittings led out from the punch, and the pipe cutting equipment is arranged on the pipe connection mechanism.

The pipe connecting mechanism comprises a material receiving pipe arranged above the material distributing turntable, the material receiving pipe is arranged on the material transferring unit, and the material transferring unit drives the material receiving pipe to be located above the material distributing turntable and far away from the material distributing turntable.

The side of dividing the material carousel is provided with changes the material slat, change material slat plane level and arrange along the removal route below of material receiving pipe, the lower extreme of material receiving pipe is close to with changeing the material slat and arranging.

Change the material unit include with connect material union coupling change the material arm, the one end of changing the material arm is through changeing material axle rotary type setting in changeing the material frame, change the material axle vertical and upper end and be provided with the linking arm, the one end of linking arm is articulated with the piston rod that changes the material cylinder, the articulated setting of cylinder body that changes the material cylinder is changeing in expecting the frame.

The pipe cutting equipment comprises a pipe cutting tool arranged on the material receiving pipe, and the pipe cutting tool moves along the radial direction of the material receiving pipe and stretches into the pipe cavity of the material receiving pipe to cut off the pipe orifice of the forming pipe.

The pipe cavity of the material receiving pipe is internally provided with a core fixing head which is concentrically arranged with the material receiving pipe, when the material receiving pipe rotates to the position above the material distributing turntable, the core fixing head vertically moves and forms splicing fit with a forming pipe fitting to implement core fixing operation on finished pipe fittings, and after the material receiving pipe rotates and is far away from the material distributing turntable, the core fixing head vertically moves and is far away from the material receiving pipe to implement discharging on the forming pipe.

The pipe connecting device is characterized in that an annular groove is formed in the outer wall of the pipe connecting pipe, two groups of pipe cutting tools are arranged in the annular groove, the pipe cutting tools are arranged on the pipe connecting pipe in a sliding mode through pipe cutting slide rods, the pipe cutting slide rods are arranged along the radial direction of the pipe connecting pipe, a pipe cutting spring is sleeved on the pipe cutting slide rods, and two ends of the pipe cutting spring are abutted to the pipe cutting tools and the outer wall of the pipe connecting pipe respectively.

The pipe cutting tool is provided with a driving ball, a pipe cutting limiting arc plate is arranged on the moving path of the material receiving pipe, a pipe cutting bulge is arranged on the pipe cutting limiting arc plate, and the driving ball is abutted against the pipe cutting limiting arc plate.

The whole fixed core head is of a tubular structure, and the outer wall of the fixed core head is provided with an arc-shaped opening avoiding the pipe cutting tool.

Connect material pipe rotary type to set up on thrust bearing's rotating ring, thrust bearing's quiet ring is provided with runing rest, decide overhead pipe cutting gear that is provided with of core, pipe cutting gear and drive gear meshing, the last vertical slip of runing rest is provided with the rotating electrical machines, the rotating electrical machines is connected with drive gear.

The pipe cutting tool is the cutting disc cutter that sets up on the runing rest, cutting disc cutter quotation level just rotates the setting on the cutting cantilever, it is connected with the cutting disc cutter to be provided with the cutting motor on the cutting cantilever, the one end rotary type setting of cutting cantilever is on the runing rest, the cover is equipped with the cutting torsional spring in the one end pivot of cutting cantilever, the both ends and the runing rest and the pivot of cutting torsional spring are supported and are leaned on and be connected.

The cutting cantilever is provided with a cutting folded plate, the cutting folded plate is vertically arranged, a cutting ejecting head is arranged above the material receiving pipe, the cutting ejecting head is vertically arranged on the rotating support, one end, extending out of the rotating support, of the cutting ejecting head is provided with an ejecting spring, and two ends of the ejecting spring are respectively abutted against one end of the cutting ejecting head and the rotating support.

The upper end of cutting top is provided with the top ball of opening, the top ball of opening supports with the top and leans on, the top is opened the board and is removed along the direction of transfer that connects the material pipe, be provided with protruding section on the top is opened the board, when the top ball of opening supports with protruding section and leans on, the cutting disc sword stretches into the mouth of pipe that connects the material pipe and implements the mouth of pipe cutting operation to the cosmetics forming tube.

The outer wall of the fixed core head is provided with an opening, the opening is arranged along the length direction of the fixed core head, the opening is arranged in a plurality of intervals along the circumferential direction of the fixed core head, a positioning elastic sheet is arranged in the opening, the positioning elastic sheet is arranged along the length direction of the opening, a lifting slide rod is arranged on a static ring of the thrust bearing, the lifting slide rod is arranged along the length of the material receiving pipe and forms sliding fit with the outer wall of the fixed core head, a lifting spring is sleeved on the lifting slide rod, and two ends of the lifting spring are respectively abutted against the static ring of the fixed core head and the thrust bearing.

The upper end of the core fixing head is provided with a core fixing ball, a core fixing sliding plate is arranged above the material receiving pipe, the core fixing sliding plate is arranged along the moving path of the material receiving pipe, the lower plate surface of the core fixing sliding plate is provided with a positioning protruding section, and the core fixing ball is abutted against the lower plate surface of the core fixing sliding plate.

The discharging equipment comprises a discharging separating pipe arranged below the moving path of the material receiving pipe, a discharging rail is arranged at an outlet below the discharging separating pipe, the discharging rail is horizontally arranged, and an outlet is formed in one end of the discharging rail.

The material receiving pipes are arranged at intervals at the lower end pipe orifices of the material discharging separating pipes, gaps between the upper ends of the material receiving pipes and the lower ends of the material discharging separating pipes form a material discharging opening, a pushing mechanism is arranged beside the material discharging opening, and the pushing mechanism is used for pushing out the cut waste materials.

The utility model discloses a cosmetic tube, including material receiving pipe, feed mechanism, discharge separating tube, propelling mechanism, material receiving pipe, interval between the upper end of material receiving pipe and the lower extreme of arranging the material separating tube is less than the length dimension of finished product cosmetics pipe fitting, propelling mechanism pushes away the material air cock including setting up the clearance side between the upper end of material receiving pipe and the lower extreme of material separating tube, it arranges along the radial direction of arranging the material separating tube to push away the material air cock, it is provided with row material.

The discharge rail is integrally of an L-shaped structure, the bent part of the discharge rail is in arc transition, a holding rod is arranged above the discharge rail, the extending direction of the holding rod is consistent with that of the discharge rail, and the holding rod supports the cosmetics pipe fitting in an abutting mode.

The orbital entry end of row material is provided with the propelling movement head, the propelling movement head moving direction is used for arranging orbital entry length direction parallel, the one end of propelling movement head is connected with the piston rod of propelling movement cylinder, the propelling movement cylinder horizontal arrangement.

The upper end of the pushing head extends to be provided with a material baffle which is horizontal and close to the lower end of the material receiving pipe.

The supporting device is characterized in that supporting slide rods are arranged at two ends of each supporting rod, the supporting slide rods are arranged horizontally and are perpendicular to the supporting rods, the supporting slide rods are arranged on the supporting rack in a sliding mode, supporting springs are sleeved on the supporting slide rods, and two ends of each supporting spring are abutted to the supporting rack and the supporting slide rods respectively.

It is provided with material stopping door plant to arrange orbital export one side, material stopping door plant is vertical and one side and row material track articulated arranging, the cover is equipped with the torsional spring on the articulated shaft that keeps off the door plant, the torsional spring makes and keeps off the door plant and arrange material track extending direction parallel.

Polishing equipment is including setting up the polishing row stub bar of material discharging equipment export top position, the vertical removal of polishing row stub bar just implements the grafting cooperation to the cosmetics pipe fitting of material discharging equipment export position, the setting of polishing row stub bar is on polishing transport mechanism, polishing transport mechanism drive cosmetics pipe fitting moves to polishing mechanism on to the outer wall polishing operation of polishing row overhead cosmetics pipe fitting is implemented, still be provided with shedding mechanism in the polishing transport mechanism, shedding mechanism is used for implementing the operation of unloading to polishing row overhead cosmetics pipe fitting.

The polishing transfer mechanism comprises a rotary conveying chain, the circular surface of the circular conveying chain is horizontal, and the polishing mechanism and the unloading mechanism are arranged on a transfer path of the circular conveying chain.

The polishing discharge head is integrally of a tubular structure and is vertically arranged, the polishing discharge head is vertically arranged on the circulating conveying chain in a sliding mode, an expansion unit is arranged on the polishing discharge head, and the expansion unit is used for clamping the outer wall of the cosmetic pipe fitting.

The expansion unit comprises an expansion head arranged on the polishing discharge head, the expansion head is arranged along the radial direction of the polishing discharge head, an expansion guide rod is arranged in the polishing discharge head, the upper end of the expansion guide rod is vertical, the expansion slide block extends out in a sliding mode, an expansion spring is sleeved on the expansion guide rod, two ends of the expansion spring are abutted to the rod end of the expansion slide block and the rod end of the expansion guide rod respectively, the expansion guide rod moves vertically and is abutted to the expansion head, and therefore the expansion head extends out of the outer wall of the polishing discharge head.

The upper end of the expansion guide rod is provided with an expansion ball, the side of the circulating conveying chain is provided with an expansion track, the expansion track extends along the conveying direction of the circulating conveying chain, and the expansion ball is abutted against the expansion track.

The expansion sliding block is vertically arranged on a rotating circular plate on the circulating conveying chain in a sliding mode through a lifting sliding rod, the lifting sliding rod extends out of a rod body of the rotating circular plate and is sleeved with a lifting spring, and the lifting spring is vertical and two ends of the lifting spring are respectively connected with the rod ends of the rotating circular plate and the lifting sliding rod.

The upper end of the lifting slide rod is provided with a lifting ring, the lifting ring and the polishing discharge head are arranged concentrically, a lifting ball is arranged on the upper ring surface of the lifting ring, and the lifting ball is abutted to or separated from the lifting folded plate.

The material taking head is arranged above the outlet of the material discharging equipment, the upper end of the material taking head is connected with a piston rod of the material taking cylinder, the material taking cylinder is vertically arranged, and the material taking head is abutted against or separated from the lifting ring.

The lower end of the material taking head is provided with a material taking ball, and the material taking ball is abutted against or separated from the expansion sliding block.

The rotary disc rotary type setting is on polishing base, the vertical arrangement of axis of rotation of rotating the disc, be provided with drive shelves pole on the circulation conveying chain moving direction, drive lever level just is perpendicular with the length direction of circulation conveying chain, drive shelves pole is a plurality of along the length direction interval arrangement of circulation conveying chain, be provided with interlock shelves pole on the inflation slider, interlock shelves pole is vertical and set up a plurality ofly along the rotatory circumference direction interval of inflation slider, interlock shelves pole and drive shelves pole support and lean on or separate.

The polishing mechanism comprises a bottom polishing belt arranged below the circulating conveying chain, the lower end of a cosmetic pipe on the polishing discharge head is abutted to the bottom polishing belt, the bottom polishing belt is connected with a power unit, and the power unit drives the bottom polishing belt to rotate.

The polishing mechanism further comprises polishing rollers arranged on two sides of the circulating conveying chain, a plurality of groups of polishing rollers are arranged at intervals along the moving direction of the circulating conveying chain, and the polishing rollers are vertically arranged and the roller bodies are abutted to the outer wall of the cosmetic pipe on the polishing discharge head.

The polishing roller rotary type sets up on the roller frame, roller frame horizontal slip sets up on the support frame, be provided with the polishing spring between roller frame and the support frame, the both ends of polishing spring support with roller frame and support frame respectively and lean on, and power motor drive polishing roller rotates.

The discharging mechanism comprises a discharging channel steel arranged at the position below the circulating conveying chain, the discharging channel steel is horizontal, a notch is in a closed-up shape, and the discharging channel steel is arranged on the flat pipe fitting for makeup.

The invention has the technical effects that: when implementing to cosmetic pipe fitting production, the aluminium ingot is derived to the washing pipe equipment in from blank feeding equipment, implements the washing pipe operation to the aluminium ingot through washing pipe equipment, and after the washing pipe was accomplished, discharge equipment implements to carry out row material operation to the pipe fitting blank, then imports into polishing equipment and polishes, realizes the automated production to this cosmetic pipe fitting, ensures the production efficiency of this cosmetic pipe fitting spare part.

Drawings

FIG. 1 is a front view of a blank feeder apparatus, a tube punch apparatus and a discharge apparatus;

FIG. 2 is a top plan view of the blank feeding apparatus, the tube punching apparatus and the discharge apparatus;

FIGS. 3 and 4 are schematic diagrams of the blank feeding device, the tube punching device and the discharging device from two viewing angles;

FIGS. 5 and 6 are schematic views of the blank feeding device and the pipe punching device from two perspectives;

fig. 7 and 8 are schematic views of the blank feeder apparatus from two perspectives;

FIG. 9 is a front view of the tube punching apparatus, the discharge apparatus and the tube cutting apparatus;

FIGS. 10 and 11 are schematic diagrams of two perspective structures of the tube punching device, the discharge device and the tube cutting device;

FIGS. 12 and 13 are schematic views of two views of a discharge apparatus;

FIG. 14 is a front view of the pipe cutting apparatus in the second embodiment;

FIG. 15 is a front view of the pipe cutting apparatus in the first embodiment;

FIGS. 16 and 17 are schematic views from two perspectives of a partial structure of a polishing apparatus;

FIGS. 18 and 19 are schematic views of two perspective views of a polishing discharge head in the polishing apparatus;

fig. 20 is a front view of the polishing apparatus;

fig. 21 and 22 are front views of the polishing apparatus in two states;

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the invention will now be described in detail with reference to the following examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed. As used herein, the terms "parallel" and "perpendicular" are not limited to their strict geometric definitions, but include tolerances for machining or human error, legibility and inconsistency;

specific features of the automated cosmetic tube punching production system are described in detail below with reference to fig. 1 to 22:

the automatic cosmetic pipe punching production system comprises a blank feeding device 100, wherein an outlet of the blank feeding device 100 is connected with a feeding hole of a pipe punching device 200, a discharging device 300 is arranged at an outlet of the pipe punching device 200, the discharging device 300 discharges pipes, an outlet of the discharging device 300 is connected with a feeding hole of a polishing device 400, and the polishing device 400 is used for polishing the outer walls of the pipes;

when the cosmetic pipe fitting is produced, the aluminum ingot has good ductility, so that the cosmetic pipe fitting is quite suitable for drawing and stamping the pipe fitting, the aluminum ingot is cut into equal-diameter and equal-thickness blanks, the aluminum ingot is conveniently stamped, drawn and formed, the aluminum ingot is led out from the blank feeding device 100 to the pipe stamping device 200, the pipe stamping operation of the aluminum ingot is carried out through the pipe stamping device, after the pipe stamping is finished, the material discharging device carries out material discharging operation on the pipe fitting blanks, then the aluminum ingot is led into the polishing device to be polished, the automatic production of the cosmetic pipe fitting is realized, and the production efficiency of parts of the cosmetic pipe fitting is ensured.

As a preferred embodiment of the present invention, in order to further process the punched tube, so that the tube opening of the tube is cut into equal-length blank tube, and ensure the quality of the finished product of the cosmetic tube, the outlet of the tube punching device 200 is connected to the feed inlet of the tube cutting device 500, and the tube cutting device 500 is used to cut off a section of the punched tube opening;

the pipe cutting device 500 is started, the cutting operation of the pipe orifice end of the pipe led out by the pipe punching device 200 is implemented, the subsequent finished product quality of the punched pipe is ensured, the lengths of the cosmetic pipe are consistent, and the finished product quality of the cosmetic can be accurately ensured.

In the process of exporting the cosmetic tube blank, the blank feeding device 100 includes a vibration tray, a constraint channel 120 is disposed at an outlet of the vibration tray, a material distribution mechanism is disposed at an outlet of the constraint channel 120, the material distribution mechanism is used for distributing the blank exported from the constraint channel 120, so that the blank and the blank are kept in a spaced state, and a constraint mechanism is disposed on the material distribution mechanism and used for clamping and positioning a single blank;

in the actual production process, when the aluminum ingot blank is guided and sent, the aluminum ingot is small in diameter and light in weight, when the aluminum ingot blank is guided and sent, a separator between the aluminum ingots is difficult to position, the single aluminum ingot blank is distributed on the constraint channel 120 through the guide and sending of the vibration disc, the aluminum ingot is separated by the material distribution mechanism, the aluminum ingots keep enough space, the constraint mechanism is convenient to position and clamp the aluminum ingots, the aluminum ingots are prevented from moving randomly, and the aluminum ingots are further stamped and drawn into required pipe fitting blanks.

Specifically, the whole restraint channel 120 is of a trough plate-shaped structure, a baffle plate 121 is arranged at the outlet of the restraint channel 120, a circular opening 122 through which a single blank passes is arranged at the outlet of the restraint channel 120, the material distribution mechanism comprises a material distribution turntable 130 arranged below the circular opening 122, the surface of the material distribution turntable 130 is horizontally arranged, material receiving grooves 131 are arranged on the surface of the material distribution turntable 130, and a plurality of material receiving grooves 131 are distributed at equal intervals along the circumferential direction of the material distribution turntable 130;

when the aluminum ingot is guided out, the single-row aluminum ingot guided out by the vibration disc moves along the constraint channel 120 and is guided out to the position of the circular opening 122, the aluminum ingot is positioned at the position of the circular opening 122 and can not be deflected and can not be effectively guided to the material receiving groove 131 of the material distribution rotary disc 130, and therefore, the high-frequency vibration motor is additionally arranged on the constraint channel 120, the aluminum ingot is guided into the circular opening 122 in a very short time and stably falls into the material receiving groove 131 of the material distribution rotary disc 130, and the arrangement and material distribution operation of the aluminum ingot is realized.

Further, a guide pipe 123 is arranged below the circular opening 122, the guide pipe 123 is vertical, the lower end of the guide pipe 123 is close to the upper disc surface of the material distribution turntable 130, the groove depth of the material receiving groove 131 is slightly smaller than the thickness of a single blank, and the distance between the lower pipe orifice of the guide pipe 123 and the upper disc surface of the material distribution turntable 130 is smaller than or equal to the thickness of the single blank;

when guiding and conveying the aluminum ingots are implemented, the aluminum ingots are guided out from the guide pipe 123 below the receiving groove 131 to the receiving groove 131 of the material distribution turntable 130, the groove depth of the receiving groove 131 is slightly smaller than the thickness of a single blank, so that the upper end of the aluminum ingot is exposed out of one section of the receiving groove 131, the aluminum ingots positioned on the guide pipe 123 are prevented from rotating along with the material distribution turntable 130, the aluminum ingots rotate along with the material distribution turntable 130, the distance between the lower pipe opening of the guide pipe 123 and the upper disc surface of the material distribution turntable 130 is smaller than or equal to the thickness of the single blank, the upper layer of aluminum ingots are clamped in the guide pipe 123, the restraint on the aluminum ingots is further realized, the aluminum ingots positioned in the guide pipe 123 are distributed in the receiving groove 131 of the material distribution turntable 130 again along with the rotation of the material distribution turntable 130, and the single continuous distribution of the aluminum ingots is realized.

In order to implement the pipe punching operation of the aluminum ingot in the material receiving groove 131, the pipe punching equipment 200 comprises a vertically arranged punch 210, a drawing forming pipe 220 is arranged below the material receiving groove 131 of the material distributing turntable 130, the drawing forming pipe 220 and the material receiving groove 131 are concentrically arranged, a push rod 230 is arranged in a pipe cavity of the drawing forming pipe 220, the push rod 230 is matched with the inner diameter of the drawing forming pipe 220 and slides along the length direction of the drawing forming pipe 220, and the punch 210 vertically moves and forms insertion fit with the drawing forming pipe 220 so as to implement the pipe punching operation of the blank on the material receiving groove 131;

along with the rotation of the material distributing turntable 130, the aluminum ingots are distributed on the material receiving groove 131, the punch 210 of the tube punching equipment 200 vertically moves and is inserted with the drawing forming tube 220, the aluminum ingots are located in the tubular cavity constrained by the ejector rod 230, the drawing forming tube 220 and the punch 210 and are punched and deformed, and then the tube punching forming operation of the aluminum ingots is realized, so that the aluminum ingots are punched into a tube-shaped structure with one closed end, the forming efficiency of the punching equipment is high, and the subsequent further processing operation of the tube punching can be facilitated.

As a preferable scheme of the present invention, the upper end of the ejector rod 230 is a plane, the material receiving groove 131 where the material separating turntable 130 is located is a through-hole structure, the upper end of the ejector rod 230 and the hole wall of the through-hole form the material receiving groove 131, the lower end of the ejector rod 230 extends out of the drawing forming tube 220 and is slidably disposed on the frame ring 240, the ejector rod 230 is sleeved with a jacking spring 231, and two ends of the jacking spring 231 respectively abut against the rod body of the jacking rod 231 and the frame ring 240;

with the starting of the tube punching equipment 200, the punch 210 moves vertically, the lower end of the punch is abutted against the aluminum ingot on the material receiving groove 131, the ejector rod 230 slides along the tube cavity of the drawing forming tube 220, the ejector spring 231 is compressed, the cosmetic blank tube is finally formed, under the reset force of the ejector spring 231 and the reset of the punch 210, the punch-formed blank tube ejects out of the material receiving groove 131, the blank tube is discharged, and further processing of the blank tube is implemented.

The material distributing turntable 130 is in an intermittent rotating state, the ejector rod 230 is arranged on a lifting mechanism, and the lifting mechanism drives the ejector rod 230 to slide along the drawing forming pipe 220 and enables the upper end of the ejector rod to extend out of the notch of the material receiving groove 131;

when the aluminum ingot is divided, the dividing turntable 130 intermittently rotates to receive the aluminum ingot and punch the aluminum ingot to form, and after the aluminum ingot is punched, the lifting mechanism drives the ejector rod 230 to slide along the drawing forming tube 220 and the upper end of the ejector rod extends out of the notch of the receiving groove 131, so that the formed pipe is led out of the notch of the receiving groove 131.

When the jacking of the jacking rod 230 is carried out, the lower end of the jacking rod 230 is provided with a jacking ball 232, the lifting mechanism comprises a jacking ring 250 arranged at the lower end of the jacking rod 230, a jacking lug 251 is arranged on the jacking ring 250, the jacking lug 251 is in smooth transition with the upper ring surface of the jacking ring 250, when the jacking ball 232 abuts against the jacking lug 251, the upper end of the jacking rod 230 extends out of the notch position of the material receiving groove 131, and the jacking ring 250 and the material distributing turntable 130 are concentrically arranged;

with the rotation of the material distributing turntable 130, the jacking ball 232 abuts against the jacking ring 250, and when the jacking ball 232 abuts against the jacking lug 251, the upper end of the jacking rod 230 extends out of the notch of the material receiving groove 131 to conduct the guiding out of the forming pipe.

In order to prevent the pipe fitting after the pipe punching forming from being led out from the material receiving groove 131 and prevent the pipe fitting from stopping on the punch 210, a limiting unit is arranged above the material distribution turntable 130 and used for limiting the formed pipe fitting ejected by the ejector rod 230;

due to the arrangement of the limiting units, the pipe piece stays in the drawing forming pipe 220, and the pipe piece can be prevented from being led out from the material receiving groove 131 at will.

Specifically, in order to limit the pipe fittings, the limiting unit comprises a limiting arc plate 260 arranged above the material distribution turntable 130, the lower plate surface of the limiting arc plate 260 is close to the material distribution turntable 130, and the finished pipe fittings are abutted against the lower plate surface of the limiting arc plate 260;

in order to implement the intermittent rotation of the distributing turntable 130, a driving rod 270 is disposed at the center of the lower disk surface of the distributing turntable 130, the driving rod 270 is rotatably disposed on the washpipe rack 271, a driving gear 272 is disposed at the rod end of the driving rod 270, the driving gear 272 is engaged with a driving worm 273, and the driving worm 273 is horizontal and connected to a driving motor 274.

Specifically, in order to vertically lift the punch 210 to perform a pipe punching operation on an aluminum ingot, the punch 210 is slidably disposed on the limiting arc plate 260, the upper end of the punch 210 is disposed on the driving beam 211, the driving beam 211 is vertically slidably disposed on the driving truss 212, the driving truss 212 is provided with a punching oil cylinder 213, the punching oil cylinder 213 is vertical, and a piston rod is connected with the driving beam 211;

when the pipe punching operation of the aluminum ingot is performed, the punching oil cylinder 213 is started, so that the punch 210 slides along the limiting arc plate 260 to perform the pipe punching operation of the aluminum ingot, finally a blank pipe is formed, and the blank pipe stays in the drawing and forming pipe 220 as the punch 210 retreats from the limiting arc plate 260.

To ensure that the pipe is punched, the ejector rod 230 moves vertically to avoid the ejection ring 250, an avoidance gap 252 is formed on the ejection ring 250, and the punch 210 is located above the avoidance gap 252.

In order to implement the material receiving operation of the blank pipe led out from the material receiving groove 131, a pipe connecting mechanism is arranged above the material distributing turntable 130, the pipe connecting mechanism is used for implementing the positioning and clamping operation of the cosmetic pipe led out from the punch 210, and the pipe cutting device 500 is arranged on the pipe connecting mechanism;

when the blank pipe is driven by the push rod 230, the blank pipe is pushed out to the pipe connecting mechanism, the pipe connecting mechanism positions and clamps the cosmetic blank pipe, the pipe cutting device 500 is started to effectively cut the guided blank pipe, the cut blank pipe is guaranteed to be equal-length pipe fittings, and the quality of finished products is guaranteed.

More specifically, the pipe connecting mechanism includes a material receiving pipe 280 disposed above the material distributing turntable 130, the material receiving pipe 280 is disposed on a material transferring unit, and the material transferring unit drives the material receiving pipe 280 to be located above the material distributing turntable 130 and far away from the material distributing turntable 130;

when the blank pipe led out by the push rod 230 is received, the blank pipe is led out to the material receiving pipe 280, and the material receiving pipe 280 is far away from the material distributing turntable 130 along with the starting of the material transferring unit, so that the formed pipe fitting is transferred.

When the transfer of the material receiving pipe 280 is implemented, the blank pipe is prevented from falling from the material receiving pipe 280, a material transferring batten 281 is arranged beside the material distributing turntable 130, the surface of the material transferring batten 281 is horizontal and is arranged below the moving path of the material receiving pipe 280, and the lower end of the material receiving pipe 280 is arranged close to the material transferring batten 281;

along with the transfer of the material receiving pipe 280, the forming pipe in the material receiving pipe 280 is abutted against the material transferring batten 281, and the material transferring batten 281 limits the forming pipe to avoid the forming pipe from falling.

Specifically, when the material receiving pipe 280 is transferred, the material transferring unit comprises a material transferring arm 282 connected with the material receiving pipe 280, one end of the material transferring arm 282 is rotatably arranged on a material transferring rack 283 through a material transferring shaft 284, the material transferring shaft 284 is vertical, the upper end of the material transferring shaft is provided with a connecting arm 2841, one end of the connecting arm 2841 is hinged to a piston rod of a material transferring cylinder 285, and a cylinder body of the material transferring cylinder 285 is hinged to the material transferring rack 283;

the material transferring cylinder 285 is started, so that the material transferring shaft 284 rotates, the transfer of the material receiving pipe 280 is realized, and the material receiving pipe 280 moves along the material transferring strip 281, and the reliable transferring operation of the pipe fittings is realized.

In order to perform the operation of opening the pipe orifice of the pipe in the material receiving pipe 280, the pipe cutting apparatus 500 includes a pipe cutting tool 510 disposed on the material receiving pipe 280, wherein the pipe cutting tool 510 moves along the radial direction of the material receiving pipe 280 and extends into the pipe cavity of the material receiving pipe 280 to perform the operation of opening the pipe orifice of the forming pipe;

when the pipe cutting operation of the pipe orifice position of the blank pipe in the material receiving pipe 280 is performed, the pipe cutting tool 510 moves along the radial direction of the material receiving pipe 280, so that the pipe orifice of the blank pipe is cut off, and the pipe length of the blank pipe is ensured to be equal.

When the tube cutting operation of the blank tube is implemented, a core fixing head 520 is arranged in a tube cavity of the material receiving tube 280, the core fixing head 520 and the material receiving tube 280 are concentrically arranged, when the material receiving tube 280 rotates to a position above the material distribution turntable 130, the core fixing head 520 vertically moves and forms insertion fit with a formed tube to implement the core fixing operation of a finished product tube, and after the material receiving tube 280 rotates and is far away from the material distribution turntable 130, the core fixing head 520 vertically moves and is far away from the material receiving tube 280 to implement the unloading of the formed tube;

when the pipe cutting groove of the pipe fitting is implemented, the core fixing head 520 vertically moves and forms insertion fit with the formed pipe fitting, so that the core fixing operation of the pipe fitting is realized, the pipe fitting is located at the center of the material receiving pipe 280, the reliable receiving and receiving of the pipe fitting are implemented, then the pipe cutting tool 510 is started and extends into the pipe cavity of the material receiving pipe 280, and therefore a section of pipe orifice of the blank pipe is cut off.

Referring to fig. 15, as a first embodiment of the present invention, an annular groove 2801 is formed in an outer wall of the material receiving pipe 280, two sets of pipe cutting tools 510 are arranged in the annular groove 2801, the pipe cutting tools 510 are slidably arranged on the material receiving pipe 280 through pipe cutting slide bars 511, the pipe cutting slide bars 511 are arranged along a radial direction of the material receiving pipe 280, pipe cutting springs 512 are sleeved on the pipe cutting slide bars 511, and two ends of the pipe cutting springs 512 respectively abut against the outer walls of the pipe cutting tools 510 and the material receiving pipe 280;

the pipe cutting tool 510 is a semi-annular blade-shaped structure, and when the pipe orifice cutting operation of the cosmetic pipe fitting in the material receiving pipe 280 is performed, the pipe cutting tool 510 slides along the pipe cutting slide rod 511 to compress the pipe cutting spring 512, so that the pipe cutting tool 510 extends into the pipe cavity of the material receiving pipe 280 to perform the pipe orifice cutting operation of the cosmetic pipe fitting.

When the pipe cutting operation is performed, the pipe cutting tool 510 is provided with a driving ball 513, the pipe receiving pipe 280 is provided with a pipe cutting limiting arc plate 530 on the moving path, the pipe cutting limiting arc plate 530 is provided with a pipe cutting protrusion 531, and the driving ball 513 abuts against the pipe cutting limiting arc plate 530;

as the material receiving pipe 280 moves, the driving ball 513 abuts against the pipe cutting protrusion 531 on the pipe cutting limiting arc plate 530, so as to compress the pipe cutting spring 512, and the pipe cutting tool 510 extends into the cavity of the material receiving pipe 280, so as to perform the pipe orifice cutting operation on the cosmetic pipe.

When the core fixing operation of the blank pipe is implemented, the whole core fixing head 520 is of a tubular structure, and the outer wall of the core fixing head 520 is provided with an arc-shaped opening 521 avoiding the pipe cutting tool 510;

the pipe cutting tool 510 extends into the arc opening 521, so as to perform a reliable cutting operation on the pipe opening of the blank pipe.

Referring to fig. 14, as a second embodiment of the present invention, the material receiving pipe 280 is rotatably disposed on a moving ring of a thrust bearing 2082, a rotating bracket 540 is disposed on a stationary ring of the thrust bearing 2802, a pipe cutting gear 5201 is disposed on the fixed core head 520, the pipe cutting gear 5201 is engaged with a driving gear 5202, a rotating motor 541 is vertically slidably disposed on the rotating bracket 540, and the rotating motor 541 is connected to the driving gear 5202.

The pipe cutting tool 510 is a cutting disc cutter arranged on the rotary support 540, the cutting disc cutter is horizontally arranged on the cutting cantilever 551 in a rotating mode, a cutting motor 552 arranged on the cutting cantilever 551 is connected with the cutting disc cutter, one end of the cutting cantilever 551 is rotatably arranged on the rotary support 540, a cutting torsion spring 553 is sleeved on a rotating shaft at one end of the cutting cantilever 551, and two ends of the cutting torsion spring 553 are connected with the rotary support 540 and the rotating shaft in an abutting mode;

when the excessive pipe section at the pipe orifice position of the material receiving pipe 280 is cut off, the rotating motor 541 is started to enable the fixed core head 520 to rotate, and enable the cutting disc cutter to be abutted against the pipe orifice of the blank pipe at the pipe orifice position of the material receiving pipe 280 under the abutting force of the cutting cantilever 551, so as to cut off the pipe orifice of the blank pipe along with the rotation of the blank pipe;

after the cutting is finished, under the reset force of the cutting torsion spring 553, the cutting disc cutter is far away from the pipe orifice of the material receiving pipe 280, and therefore the blank pipe is avoided.

When the pipe orifice cutting operation of the blank pipe is carried out, a cutting folding plate 554 is arranged on the cutting cantilever 551, the cutting folding plate 554 is vertically arranged, a cutting ejecting head 556 is arranged above the material receiving pipe 280, the cutting ejecting head 556 is vertically arranged on the rotating bracket 540, one end, extending out of the rotating bracket 540, of the cutting ejecting head 556 is sleeved with an ejecting spring 5561, and two ends of the ejecting spring 5561 are respectively abutted against one end of the cutting ejecting head 556 and the rotating bracket 540;

an ejection ball 5562 is arranged at the upper end of the cutting ejector 556, the ejection ball 5562 abuts against an ejection plate 5563, the ejection plate 5563 moves along the transfer direction of the material receiving pipe 280, a protruding section is arranged on the ejection plate 5563, and when the ejection ball 5562 abuts against the protruding section, the cutting disc knife extends into the pipe orifice of the material receiving pipe 280 and performs pipe orifice cutting operation on the cosmetic forming pipe;

during the transfer process of the material receiving pipe 280, the ejection ball 5562 abuts against the ejection plate 5563, so that the cutting head 556 moves downwards to deflect the cutting cantilever 551, the cutting disc cutter is close to the position of the pipe orifice of the material receiving pipe 280, the pipe cutting motor is started, and the material receiving pipe 280 is started to rotate, so that the pipe cutting operation of one end of the blank pipe is realized.

More specifically, an opening is formed in the outer wall of the fixed core head 520, the opening is arranged along the length direction of the fixed core head 520, a plurality of openings are arranged at intervals along the circumferential direction of the fixed core head 520, a positioning elastic sheet 522 is arranged in the opening, the positioning elastic sheet 522 is arranged along the length direction of the opening, a lifting slide bar 523 is arranged on a stationary ring of the thrust bearing 2802, the lifting slide bar 523 is arranged along the length of the material receiving pipe 280 and forms a sliding fit with the outer wall of the fixed core head 520, a lifting spring 524 is sleeved on the lifting slide bar 523, and two ends of the lifting spring 524 are respectively abutted against the stationary ring of the fixed core head 520 and the stationary ring of the thrust bearing 2802;

when core fixing operation is carried out on the blank pipe in the material receiving pipe 280, the material receiving pipe 280 rotates to the position above the material distribution turntable 130, the ejector rod 230 is started to vertically move, so that the blank pipe vertically moves, the pipe orifice of the blank pipe is in insertion fit with the core fixing head 520, the positioning elastic sheet 522 abuts against the inner wall of the blank pipe to form abutting, core fixing of the blank pipe is carried out, the blank pipe is located in the center of the material receiving pipe 280, and accordingly pipe orifice cutting operation of the blank pipe is guaranteed.

When the core fixing head 520 is retracted and extends into the material receiving pipe 280, a core fixing ball 525 is arranged at the upper end of the core fixing head 520, a core fixing sliding plate 526 is arranged above the material receiving pipe 280, the core fixing sliding plate 526 is arranged along the moving path of the material receiving pipe 280, a positioning convex section is arranged on the lower plate surface of the core fixing sliding plate 526, and the core fixing ball 525 abuts against the lower plate surface of the core fixing sliding plate 526;

when deciding core head 520 and transferring along with material receiving pipe 280, decide core ball 525 and decide core slide 526 and lean on for decide core head 520 vertical movement compression lift spring 524, so that decide core head 520 stretches into in the material receiving pipe 280, thereby implement the grafting operation to blank pipe one end, after blank pipe kept away from branch material carousel 130, decide core ball 525 and decide core slide 526 and keep away from, thereby make and decide core head 520 stretch out material receiving pipe 280, in order to implement the operation of unloading to the orificial blank pipe of cutting.

When the key points after cutting are all discharged through the discharging device 300, the discharging device 300 includes a discharging separation pipe 310 disposed below the moving path of the material receiving pipe 280, a discharging rail 320 is disposed at an outlet below the discharging separation pipe 310, the discharging rail 320 is horizontally disposed, and an outlet is disposed at one end of the discharging rail 320;

after the pipe cutting device 500 performs the pipe cutting operation on one end of the blank pipe located in the material receiving pipe 280, the blank pipe falls from the material discharging separation pipe 310 onto the material discharging rail 320, so that the blank pipe is discharged along the length direction of the material discharging rail 320, the blank pipe is discharged until the blank pipe is guided into the polishing device 400, and the polishing operation on the bottom and the outer wall of the blank pipe is performed.

When the cut blank pipes are discharged, material receiving pipes 311 are arranged at intervals at the lower end pipe orifices of the material discharge separating pipes 310, a discharge outlet is formed by a gap between the upper ends of the material receiving pipes 311 and the lower ends of the material discharge separating pipes 310, and a pushing mechanism is arranged beside the discharge outlet and used for pushing out the cut waste materials;

the material guided out from the material receiving pipe 280 includes a cut blank pipe and a cut annular waste, and the pushing mechanism is used for discharging the cut waste from the gap between the upper end of the material receiving pipe 311 and the lower end of the material discharge separating pipe 310 to the picking up gap, so that the waste is discharged.

More specifically, the distance between the upper end of the material receiving pipe 311 and the lower end of the material discharge separating pipe 310 is smaller than the length dimension of the finished cosmetic tube, the pushing mechanism comprises material pushing air nozzles 312 arranged beside a gap between the upper end of the material receiving pipe 311 and the lower end of the material separating pipe 310, the material pushing air nozzles 312 are arranged along the radial direction of the material discharge separating pipe 310, and a material discharge pipe 313 is arranged in the air flow direction of the material pushing air nozzles 312;

when the waste material is discharged, the material pushing air nozzle 312 is started, the formed blank pipe automatically drops to the pipe orifice at the upper end of the material receiving pipe 311, and the high-pressure gas discharges the waste material to the material discharging pipe 313 from the gap between the upper end of the material receiving pipe 311 and the lower end of the material discharging separation pipe 310, so that the waste material discharging operation is realized.

Specifically, in order to implement the discharging operation of the discharged blank tube, the discharging rail 320 is integrally in an "L" shape, the bent portion of the discharging rail 320 is in arc transition, a holding rod 321 is arranged above the discharging rail 320, the extending direction of the holding rod 321 is consistent with the extending direction of the discharging rail 320, and the holding rod 321 supports the cosmetic tube in an abutting manner;

when the discharging operation of the blank tube is performed, the blank tube slides along the discharging rail 320, and under the holding force of the holding rod 321, the outer wall of the blank tube is abutted, so that the discharging operation of the blank tube is realized, and the blank tube is in a vertical state and is arranged along the discharging rail 320.

Specifically, in order to conduct the blank tube, a pushing head 330 is disposed at an inlet end of the discharge rail 320, a moving direction of the pushing head 330 is parallel to a length direction of the inlet of the discharge rail 320, one end of the pushing head 330 is connected to a piston rod of a pushing cylinder 331, and the pushing cylinder 331 is horizontally disposed.

In order to prevent blank pipe fittings in the discharge separating pipe 310 from falling off in the pushing process, a material baffle plate 332 is arranged at the upper end of the pushing head 330 in an extending manner, and the material baffle plate 332 is horizontal and close to the lower end of the material receiving pipe 311.

Specifically, in order to implement elastic support on the outer wall of the blank pipe, avoid scratching the pipe fitting, and avoid toppling of the blank pipe, two ends of the support rod 321 are provided with support slide rods 322, the support slide rods 322 are horizontally arranged and perpendicular to the support rod 321, the support slide rods 322 are slidably arranged on the support frame, the support slide rods 322 are sleeved with support springs 323, and two ends of the support springs 323 are respectively abutted against the support frame and the support slide rods 322.

In order to implement to export the blank pipe from the discharge track 320, one side of the outlet of the discharge track 320 is provided with a material blocking door plate 324, the material blocking door plate 324 is vertical, one side of the material blocking door plate 324 is hinged to the discharge track 320, a torsion spring is sleeved on a hinged shaft of the material blocking door plate 324, and the torsion spring enables the material blocking door plate 324 to be parallel to the extending direction of the discharge track 320.

When the material receiving and polishing operation of the blank tubes on the discharge rail 320 is implemented, the polishing device 400 includes a polishing discharge head 410 disposed above the outlet of the discharge device 300, the polishing discharge head 410 moves vertically and implements the insertion and matching of the cosmetic tubes at the outlet of the discharge device 300, the polishing discharge head 410 is disposed on a polishing transfer mechanism, the polishing transfer mechanism drives the cosmetic tubes to move to a polishing mechanism so as to implement the outer wall polishing operation of the cosmetic tubes on the polishing discharge head 410, and a discharge mechanism is further disposed on the polishing transfer mechanism and is used for implementing the discharge operation of the cosmetic tubes on the polishing discharge head 410;

when the polishing operation of the blank is performed, the polishing transfer mechanism is started, so that the polishing discharge head 410 is transferred to the outlet position of the discharge device 300 to perform the plugging operation of the finished pipe, and the polishing discharge head 410 is transferred to the polishing mechanism along with the transfer of the polishing discharge head 410 to perform the polishing operation of the outer wall and the bottom of the blank pipe.

As a preferred embodiment of the present invention, in order to implement the transportation of the polishing discharge head 410, the polishing transportation mechanism includes a rotary conveying chain 420, the circular surface of the circular conveying chain 420 is horizontal, and the polishing mechanism and the discharge mechanism are disposed on the transportation path of the circular conveying chain 420;

the polishing discharge heads 410 are arranged at intervals along the circumferential direction of the rotary conveying chain 420, so that the blank pipes are received and transported, the blank pipes are continuously received, the outer walls and the bottoms of the blank pipes are polished and discharged, and the blank pipes are automatically processed.

More specifically, the polishing discharge head 410 is integrally tubular and vertically arranged, the polishing discharge head 410 is vertically slidably arranged on the circulating conveying chain 420, and an expansion unit is arranged on the polishing discharge head 410 and used for clamping the outer wall of the cosmetic tube;

in order to clamp the inner wall of the blank pipe and avoid deformation of the blank pipe caused by external force in the polishing process, the expansion unit on the polishing discharge head 410 supports and shapes the blank pipe, so that the blank pipe is supported, the polishing reliability of the blank pipe is ensured, and deformation of the blank pipe during polishing is avoided.

Specifically, when the supporting of the inner pipe wall of the blank pipe is implemented, the expansion unit includes an expansion head 413 disposed on the polishing discharge head 410, the expansion head 413 is disposed along the radial direction of the polishing discharge head 410, an expansion guide rod 411 is disposed in the polishing discharge head 410, the expansion guide rod 411 vertically extends out of the expansion slider 430 in a sliding manner, an expansion spring 412 is sleeved on the expansion guide rod 411, two ends of the expansion spring 412 respectively abut against the expansion slider 430 and a rod end of the expansion guide rod 411, and the expansion guide rod 411 vertically moves and abuts against the expansion head 413, so that the expansion head 413 extends out of the outer wall of the polishing discharge head 410;

the upper end of the expansion guide rod 411 is provided with an expansion ball 4111, an expansion track 440 is arranged beside the circulating conveyor chain 420, the expansion track 440 extends along the conveying direction of the circulating conveyor chain 420, and the expansion ball 4111 abuts against the expansion track 440;

along with the motion of circulation conveying chain 420 for expansion ball 4111 supports with expansion track 440 and leans on, thereby make expansion guide 411 descend, so that expansion head 413 stretches out the outer wall of polishing row of stub bar 410, thereby realize the support to the blank pipe, avoid the deformation that the blank pipe polishing in-process produced, after finishing polishing, expansion ball 4111 separates with expansion track 440, under expansion spring 412 restoring force, make expansion head 413 break away from the restraint, thereby make things convenient for the blank pipe to unload from polishing row of stub bar 410, in order to implement the operation of unloading to the blank pipe.

More specifically, in order to implement the material taking operation of the blank pipe fitting at the outlet position of the material discharging device 300, the expansion slider 430 is vertically and slidably disposed on a rotating circular plate 423 on the endless conveying chain 420 through a lifting slide rod 432, a lifting spring 421 is sleeved on a shaft of the lifting slide rod 432 extending out of the rotating circular plate 423, and two vertical ends of the lifting spring 421 are respectively connected with the rotating circular plate 423 and a rod end of the lifting slide rod 432.

The upper end of the lifting slide bar 432 is provided with a lifting ring 433, the lifting ring 433 is concentrically arranged with the polishing discharge head 410, a lifting ball 4331 is arranged on the upper surface of the lifting ring 433, and the lifting ball 4331 is abutted against or separated from a lifting folded plate 480.

When the blank pipe fitting taking operation at the outlet position of the discharging device 300 is implemented, a material taking head 440 is arranged above the outlet of the discharging device 300, the upper end of the material taking head 440 is connected with a piston rod of a material taking cylinder 441, the material taking cylinder 441 is vertically arranged, and the material taking head 440 is abutted to or separated from the lifting ring 433;

the circulating conveying chain 420 intermittently rotates, the material taking cylinder 441 is started to enable the material taking head 440 to vertically move and drive the polishing material discharging head 410 to move downwards to the position of a pipe opening along the circulating conveying chain 420 to implement inserting and taking of the blank pipe, and then along with the rotation of the circulating conveying chain 420, the lifting ball 4331 on the lifting circular ring 433 abuts against the lifting folding plate 480 to enable the expansion sliding block 430 to keep a low position to implement inserting and taking operation on the pipe fitting;

more specifically, in order to prevent the material taking head 440 from affecting the endless conveyor chain 420, the material taking ball 442 is disposed at the lower end of the material taking head 440, and the material taking ball 442 abuts against or separates from the expansion slider 430.

In order to realize the rotation of the pipe, thereby ensuring the reliable polishing operation of the outer wall and the bottom of the blank pipe, the expansion slide block 430 is rotatably arranged on the polishing base 450, the rotating shaft of the expansion slide block 430 is vertically arranged, the moving direction of the circulating conveying chain 420 is provided with a driving stop lever 422, the driving lever 422 is horizontal and vertical to the length direction of the circulating conveying chain 420, a plurality of driving stop levers 422 are arranged at intervals along the length direction of the circulating conveying chain 420, the expansion slide block 430 is provided with a linkage stop lever 431, the linkage stop lever 431 is vertical and is arranged at intervals along the rotating circumferential direction of the expansion slide block 430, and the linkage stop lever 431 is abutted against or separated from the driving stop lever 422;

along with the rotation process of the circulating conveying chain 420, the linkage stop lever 431 on the expansion sliding block 430 is abutted to the driving stop lever 422, so that the expansion sliding block 430 is rotated, and after the expansion sliding block 430 rotates, the direction of the blank pipe is converted, so that the polishing reliability of the pipe fitting is ensured.

To perform the polishing operation on the bottom of the raw pipe, the polishing mechanism includes an under-polishing belt 450 disposed at a position below the endless conveying chain 420, the lower end of the cosmetic pipe on the polishing discharge head 410 abuts against the under-polishing belt 450, the under-polishing belt 450 is connected to a power unit, and the power unit drives the under-polishing belt 450 to rotate.

In order to perform the polishing operation on the outer wall of the blank pipe, the polishing mechanism further comprises polishing rollers 460 arranged at two sides of the circulating conveyor chain 420, the polishing rollers 460 are arranged in a plurality of groups at intervals along the moving direction of the circulating conveyor chain 420, and the polishing rollers 460 are vertically arranged and the roller bodies abut against the outer wall of the cosmetic pipe on the polishing discharge head 410.

To say that the polishing roller 460 is elastically abutted against the outer wall of the blank tube to ensure the polishing effect on the outer wall of the blank tube, the polishing roller 460 is rotatably arranged on a roller frame 461, the roller frame 461 is horizontally and slidably arranged on a support frame 462, a polishing spring 463 is arranged between the roller frame 461 and the support frame 462, two ends of the polishing spring 463 are respectively abutted against the roller frame 461 and the support frame 462, and a power motor drives the polishing roller 460 to rotate.

In order to unload the blank pipe, the unloading mechanism comprises an unloading channel steel 470 arranged below the circulating conveying chain 420, the unloading channel steel 470 is horizontal, the notch of the unloading channel steel 470 is in a closed-up arrangement, and the makeup flat pipe fitting is subjected to arrangement;

in the rotation process of ring conveying chain 420 for in the leading-in channel-section steel 470 of unloading of blank pipe, along with ring conveying chain 420 in-process, inflation slider 430 and spacing track separation, under the restoring force of elastic force, make polishing row stub bar 410 rise, thereby make the blank pipe arrange in unloading channel-section steel 470, in order to implement the row material operation to the blank pipe.

firstly, guiding blank aluminum ingots into a vibration disc of the blank feeding equipment 100, and starting the vibration disc to guide a single blank aluminum ingot out to a material distribution turntable 130 of the blank feeding equipment 100;

secondly, starting the punch 210 of the tube punching equipment 200, so that the punch 210 moves vertically and performs a tube punching operation on the blank aluminum ingot on the distribution turntable 130;

thirdly, starting the material distribution turntable 130 to rotate, so that the blank pipe fitting formed by pipe punching is guided into the material receiving pipe 280 of the pipe punching equipment 200 to implement the material receiving operation of the blank pipe;

fourthly, starting a pipe cutting tool 510 of the pipe cutting equipment 500 to cut off a pipe orifice at one end of the blank pipe in the butt joint pipe 280;

fifthly, guiding the cut blank pipe into a discharging device 300, and discharging the blank pipe;

sixthly, starting a circulating conveying chain 420 of the polishing device 400, so that the polishing discharge head 410 of the polishing device 400 performs insertion operation on the blank pipe at the outlet position of the discharge device 300 and transfers the blank pipe to a polishing mechanism for polishing operation;

and seventhly, starting the discharging mechanism of the polishing device 400 to discharge the polishing discharging head 410 of the polishing device 400.

Claims

1. The automatic pipe washing production method of the cosmetic pipe fitting is characterized by comprising the following steps of: the automatic pipe flushing production method for the cosmetic pipe fitting comprises the following steps:

firstly, guiding blank aluminum ingots into a vibration disc of blank feeding equipment (100), and starting the vibration disc to guide single blank aluminum ingots onto a material distribution turntable (130) of the blank feeding equipment (100);

secondly, starting a punch head (210) of the tube punching equipment (200) to enable the punch head (210) to vertically move and carry out tube punching operation on blank aluminum ingots on the distribution turntable (130);

thirdly, starting the material distribution turntable (130) to rotate, so that the blank pipe fitting formed by the pipe punching is led out to a material receiving pipe (280) of the pipe punching equipment (200) to implement the material receiving operation of the blank pipe;

fourthly, starting a pipe cutting tool (510) of the pipe cutting equipment (500) to cut off a pipe orifice at one end of the blank pipe in the butt joint material pipe (280);

fifthly, guiding the cut blank pipe into a discharging device (300) and discharging the blank pipe;

sixthly, starting a circulating conveying chain (420) of the polishing device (400) to enable a polishing discharge head (410) of the polishing device (400) to perform insertion operation on the blank pipe fitting at the outlet position of the discharge device (300) and transfer the blank pipe fitting into a polishing mechanism for polishing operation;

and seventhly, starting a discharging mechanism of the polishing equipment (400) to discharge the polishing discharging head (410) of the polishing equipment (400).

2. The automated cosmetic tube punch production method of claim 1, wherein: the blank feeding device (100) comprises a vibrating disc, a restraint channel (120) is arranged at the outlet of the vibrating disc, a material distribution mechanism is arranged at the outlet of the restraint channel (120), the material distribution mechanism is used for distributing blanks led out from the restraint channel (120) so that the blanks can be kept at intervals, and a restraint mechanism is arranged on the material distribution mechanism and used for clamping and positioning a single blank;

the restraint channel (120) is integrally of a trough plate-shaped structure, a baffle plate (121) is arranged at the outlet of the restraint channel (120), a round opening (122) through which a single blank passes is formed in the outlet of the restraint channel (120), the material distribution mechanism comprises a material distribution turntable (130) arranged below the round opening (122), the surface of the material distribution turntable (130) is horizontally arranged, material receiving grooves (131) are formed in the disc surface of the material distribution turntable (130), and a plurality of material receiving grooves (131) are distributed at equal intervals along the circumferential direction of the material distribution turntable (130);

a guide pipe (123) is arranged below the circular opening (122), the guide pipe (123) is vertical, the lower end of the guide pipe (123) is close to the upper disc surface of the material distribution turntable (130), the depth of the material receiving groove (131) is slightly smaller than the thickness of a single blank, and the distance between the lower pipe orifice of the guide pipe (123) and the upper disc surface of the material distribution turntable (130) is smaller than or equal to the thickness of the single blank.

3. The automated cosmetic tube punch production method of claim 2, wherein: the pipe punching equipment (200) comprises a vertically arranged punch head (210), a drawing forming pipe (220) is arranged below a material receiving groove (131) of the material distribution rotary table (130), the drawing forming pipe (220) and the material receiving groove (131) are concentrically arranged, a push rod (230) is arranged in a pipe cavity of the drawing forming pipe (220), the push rod (230) is matched with the inner diameter of the drawing forming pipe (220) and slides along the length direction of the drawing forming pipe (220), and the punch head (210) vertically moves and is in plug-in fit with the drawing forming pipe (220) so as to perform pipe punching and forming operation on blanks on the material receiving groove (131);

the upper end of the ejector rod (230) is a plane, the material receiving groove (131) where the material distributing turntable (130) is located is of a through hole-shaped structure, the upper end of the ejector rod (230) and the hole wall of the through hole form the material receiving groove (131), the lower end of the ejector rod (230) extends out of the drawing forming pipe (220) and is arranged on the rack ring (240) in a sliding mode, the ejector rod (230) is sleeved with a jacking spring (231), and two ends of the jacking spring (231) are respectively abutted to the rod body of the jacking rod (231) and the rack ring (240);

the material distributing turntable (130) is in an intermittent rotating state, the ejector rod (230) is arranged on the lifting mechanism, and the lifting mechanism drives the ejector rod (230) to slide along the drawing forming pipe (220) and enables the upper end of the ejector rod to extend out of the notch of the material receiving groove (131).

4. The automated cosmetic tube punch production process of claim 3, wherein: the lower end of the ejector rod (230) is provided with a jacking ball (232), the lifting mechanism comprises a jacking ring (250) arranged at the lower end of the ejector rod (230), a jacking lug (251) is arranged on the jacking ring (250), the jacking lug (251) is in smooth transition with the upper ring surface of the jacking ring (250), when the jacking ball (232) abuts against the jacking lug (251), the upper end of the ejector rod (230) extends out of the notch position of the material receiving groove (131), and the jacking ring (250) and the material distributing rotary disc (130) are concentrically arranged;

a limiting unit is arranged above the material distribution turntable (130) and used for limiting the formed pipe ejected by the ejector rod (230);

the limiting unit comprises a limiting arc plate (260) arranged above the material distribution turntable (130), the lower plate surface of the limiting arc plate (260) is close to the material distribution turntable (130), and the finished pipe fittings are abutted against the lower plate surface of the limiting arc plate (260);

a driving rod (270) is arranged in the center of the lower disc surface of the material distribution rotary disc (130), the driving rod (270) is rotatably arranged on the wash pipe rack (271), a driving gear (272) is arranged at the rod end of the driving rod (270), the driving gear (272) is matched with a driving worm (273), and the driving worm (273) is horizontal and connected with a driving motor (274);

the punch head (210) is arranged on the limiting arc plate (260) in a sliding mode, the upper end of the punch head (210) is arranged on the driving cross beam (211), the driving cross beam (211) is vertically arranged on the driving truss (212) in a sliding mode, the driving truss (212) is provided with a punching oil cylinder (213), the punching oil cylinder (213) is vertical, and a piston rod of the punching oil cylinder is connected with the driving cross beam (211);

an avoiding notch (252) is formed in the jacking ring (250), and the punch head (210) is arranged above the avoiding notch (252).

5. The automated cosmetic tube punch production method of claim 2, wherein: a pipe connecting mechanism is arranged above the material distributing turntable (130), the pipe connecting mechanism is used for positioning and clamping cosmetic pipe fittings led out from the punch head (210), and the pipe cutting equipment (500) is arranged on the pipe connecting mechanism;

the pipe connecting mechanism comprises a material receiving pipe (280) arranged above the material distribution turntable (130), the material receiving pipe (280) is arranged on a material transferring unit, and the material transferring unit drives the material receiving pipe (280) to be positioned above the material distribution turntable (130) and to be away from the material distribution turntable (130);

a material transferring lath (281) is arranged beside the material distributing turntable (130), the surface of the material transferring lath (281) is horizontal and is arranged along the lower part of the moving path of the material receiving pipe (280), and the lower end of the material receiving pipe (280) is close to the material transferring lath (281);

it includes material arm (282) of changeing of being connected with material receiving pipe (280) to change the material unit, the one end of changing material arm (282) is through changeing material axle (284) rotary type setting on changeing material frame (283), change material axle (284) vertical and upper end and be provided with linking arm (2841), the one end of linking arm (2841) is articulated with the piston rod of changeing material cylinder (285), the cylinder body of changeing material cylinder (285) is articulated to be set up on changeing material frame (283).

6. The automated cosmetic tube punch production method of claim 5, wherein: the pipe cutting equipment (500) comprises a pipe cutting tool (510) arranged on the material receiving pipe (280), and the pipe cutting tool (510) moves along the radial direction of the material receiving pipe (280) and extends into a pipe cavity of the material receiving pipe (280) to perform pipe orifice cutting operation on a forming pipe;

the pipe cavity of the material receiving pipe (280) is internally provided with a core fixing head (520), the core fixing head (520) and the material receiving pipe (280) are concentrically arranged, when the material receiving pipe (280) rotates to the position above the material distribution turntable (130), the core fixing head (520) vertically moves and forms insertion fit with a formed pipe fitting so as to implement core fixing operation on a finished pipe fitting, and after the material receiving pipe (280) rotates and is far away from the material distribution turntable (130), the core fixing head (520) vertically moves and is far away from the material receiving pipe (280) so as to implement unloading on the formed pipe.

7. The automated cosmetic tube punch production method of claim 5, wherein: the discharging equipment (300) comprises a discharging separation pipe (310) arranged below the moving path of the material receiving pipe (280), a discharging rail (320) is arranged at an outlet below the discharging separation pipe (310), the discharging rail (320) is horizontally arranged, and an outlet is arranged at one end of the discharging rail;

material receiving pipes (311) are arranged at intervals at the lower end pipe orifices of the material discharging separating pipes (310), a discharge outlet is formed by a gap between the upper ends of the material receiving pipes (311) and the lower ends of the material discharging separating pipes (310), and a pushing mechanism is arranged beside the discharge outlet and used for pushing out the cut waste materials;

the space between the upper end of the material receiving pipe (311) and the lower end of the material discharge separating pipe (310) is smaller than the length size of a finished product cosmetic pipe fitting, the pushing mechanism comprises material pushing air nozzles (312) arranged beside a gap between the upper end of the material receiving pipe (311) and the lower end of the material discharge separating pipe (310), the material pushing air nozzles (312) are arranged along the radial direction of the material discharge separating pipe (310), and a material discharge pipe (313) is arranged in the airflow direction of the material pushing air nozzles (312);

the discharge rail (320) is integrally of an L-shaped structure, the bent part of the discharge rail (320) is in arc transition, a holding rod (321) is arranged above the discharge rail (320), the extending direction of the holding rod (321) is consistent with the extending direction of the discharge rail (320), and the holding rod (321) supports the cosmetics pipe fitting in an abutting mode;

the inlet end of the discharging track (320) is provided with a pushing head (330), the moving direction of the pushing head (330) is parallel to the length direction of the inlet of the discharging track (320), one end of the pushing head (330) is connected with a piston rod of a pushing cylinder (331), and the pushing cylinder (331) is horizontally arranged;

a material baffle plate (332) extends from the upper end of the pushing head (330), and the material baffle plate (332) is horizontal and close to the lower end of the material receiving pipe (311);

two ends of the supporting rod (321) are provided with supporting slide rods (322), the supporting slide rods (322) are horizontal and are perpendicular to the supporting rod (321), the supporting slide rods (322) are arranged on the supporting frame in a sliding mode, supporting springs (323) are sleeved on the supporting slide rods (322), and two ends of each supporting spring (323) are respectively abutted against the supporting frame and the corresponding supporting slide rod (322);

arrange material track (320) export one side and be provided with and keep off material door plant (324), keep off material door plant (324) vertical and one side and arrange that material track (320) are articulated, the cover is equipped with the torsional spring on keeping off the articulated shaft of material door plant (324), the torsional spring makes and keeps off material door plant (324) and arranges material track (320) extending direction and be parallel.

8. The automated cosmetic tube punch production method of claim 1, wherein: the polishing equipment (400) comprises a polishing discharge head (410) arranged above an outlet of the discharge equipment (300), the polishing discharge head (410) moves vertically and performs insertion and matching on cosmetic pipes at the outlet of the discharge equipment (300), the polishing discharge head (410) is arranged on a polishing transfer mechanism, the polishing transfer mechanism drives the cosmetic pipes to move to the polishing mechanism so as to perform polishing operation on the outer walls of the cosmetic pipes on the polishing discharge head (410), and a discharge mechanism is further arranged on the polishing transfer mechanism and used for performing discharge operation on the cosmetic pipes on the polishing discharge head (410);

the polishing transfer mechanism comprises a rotary conveying chain (420), the annular surface of the circulating conveying chain (420) is horizontal, and the polishing mechanism and the unloading mechanism are arranged on a transfer path of the circulating conveying chain (420);

the polishing discharge head (410) is integrally of a tubular structure and is vertically arranged, the polishing discharge head (410) is vertically arranged on a circulating conveying chain (420) in a sliding mode, and an expansion unit is arranged on the polishing discharge head (410) and is used for clamping the outer wall of a cosmetic pipe fitting.

9. The automated cosmetic tube punch production process of claim 8, wherein: the expansion unit comprises an expansion head (413) arranged on the polishing discharge head (410), the expansion head (413) is arranged along the radial direction of the polishing discharge head (410), an expansion guide rod (411) is arranged in the polishing discharge head (410), the expansion guide rod (411) vertically extends out of an expansion sliding block (430) in a sliding mode, an expansion spring (412) is sleeved on the expansion guide rod (411), two ends of the expansion spring (412) are respectively abutted against the expansion sliding block (430) and the rod end of the expansion guide rod (411), the expansion guide rod (411) vertically moves and abuts against the expansion head (413), and therefore the expansion head (413) extends out of the outer wall of the polishing discharge head (410);

the upper end of the expansion guide rod (411) is provided with an expansion ball (4111), an expansion track (440) is arranged beside the circulating conveyor chain (420), the expansion track (440) extends along the conveying direction of the circulating conveyor chain (420), and the expansion ball (4111) abuts against the expansion track (440);

the expansion sliding block (430) is vertically arranged on a rotating circular plate (423) on the circulating conveying chain (420) in a sliding mode through a lifting sliding rod (432), a lifting spring (421) is sleeved on a rod body of the lifting sliding rod (432) extending out of the rotating circular plate (423), and the lifting spring (421) is vertical and two ends of the lifting spring are respectively connected with the rotating circular plate (423) and the rod end of the lifting sliding rod (432);

the upper end of the lifting slide rod (432) is provided with a lifting circular ring (433), the lifting circular ring (433) and the polishing discharge head (410) are concentrically arranged, a lifting ball (4331) is arranged on the upper ring surface of the lifting circular ring (433), and the lifting ball (4331) is abutted against or separated from the lifting folded plate (480);

a material taking head (440) is arranged above an outlet of the discharging equipment (300), the upper end of the material taking head (440) is connected with a piston rod of a material taking cylinder (441), the material taking cylinder (441) is vertically arranged, and the material taking head (440) is abutted to or separated from a lifting ring (433);

the lower end of the material taking head (440) is provided with a material taking ball (442), and the material taking ball (442) is abutted against or separated from the expansion sliding block (430);

lifting ring (433) rotary type setting is on polishing base (450), the vertical arrangement of axis of rotation of lifting ring (433), circulation conveying chain (420) moving direction is last to be provided with drive shelves pole (422), drive lever (422) level and perpendicular with the length direction of circulation conveying chain (420), drive shelves pole (422) are along the length direction interval arrangement of circulation conveying chain (420) a plurality ofly, be provided with interlock shelves pole (431) on inflation slider (430), interlock shelves pole (431) are vertical and set up a plurality ofly along the rotatory circumferential direction interval of inflation slider (430), interlock shelves pole (431) and drive shelves pole (422) support to lean on or separate.

10. The automated cosmetic tube punch production process of claim 9, wherein: the polishing mechanism comprises a bottom polishing belt (450) arranged at a position below the circulating conveying chain (420), the lower end of the cosmetic pipe on the polishing discharge head (410) abuts against the bottom polishing belt (450), the bottom polishing belt (450) is connected with a power unit, and the power unit drives the bottom polishing belt (450) to rotate;

the polishing mechanism further comprises polishing rollers (460) arranged on two sides of the circulating conveying chain (420), multiple groups of polishing rollers (460) are arranged at intervals along the moving direction of the circulating conveying chain (420), the polishing rollers (460) are vertically arranged, and the roller bodies abut against the outer wall of the cosmetic pipe on the polishing discharge head (410);

the polishing roller (460) is rotatably arranged on a roller frame (461), the roller frame (461) is horizontally and slidably arranged on a supporting frame (462), a polishing spring (463) is arranged between the roller frame (461) and the supporting frame (462), two ends of the polishing spring (463) are respectively abutted against the roller frame (461) and the supporting frame (462), and a power motor drives the polishing roller (460) to rotate;

the discharging mechanism comprises a discharging channel steel (470) arranged below the circulating conveying chain (420), wherein the discharging channel steel (470) is horizontal, a notch is in a closed-up shape and is arranged to bear and arrange the makeup flat pipe fitting.