CN107284773B

CN107284773B - Automatic plastic pipe cap feeding equipment and pipe cap punching method thereof

Info

Publication number: CN107284773B
Application number: CN201710467186.5A
Authority: CN
Inventors: 陈厚忠
Original assignee: Wuhan Kingbull Economic Development Co Ltd
Current assignee: Wuhan Kingbull Economic Development Co Ltd
Priority date: 2017-06-19
Filing date: 2017-06-19
Publication date: 2021-02-19
Anticipated expiration: 2037-06-19
Also published as: CN107284773A

Abstract

The invention discloses automatic pipe cap feeding equipment for plastic pipes, which comprises a pipe discharging workbench, a pipe cap vibrating disc feeding mechanism, a plastic pipe feeding mechanism, a jacking transfer mechanism and a pipe cap beating mechanism, wherein the pipe cap vibrating disc feeding mechanism is arranged on the pipe discharging workbench; the end of the pipe discharging workbench is butted with the initial position of the plastic pipe feeding mechanism, the end of the plastic pipe feeding mechanism is butted with the jacking transfer mechanism, the jacking transfer mechanism is arranged below the pipe cap beating mechanism, pipe cap vibrating disc feeding mechanisms are symmetrically arranged on two sides of the discharging workbench, and the discharge port of the pipe cap vibrating disc feeding mechanism is butted with the feeding port of the pipe cap beating mechanism. The automatic pipe cap feeding equipment for the plastic pipes, provided by the invention, can feed a plurality of pipes at one time, and then continuously feed the pipes, so that the continuous casing caps of a batch of off-line pipes can be realized through periodic circulation, the working efficiency is greatly improved, and meanwhile, the automatic pipe cap feeding equipment is simple in structure, convenient to operate and maintain and suitable for batch pipe cap feeding and packaging output of the plastic pipes.

Description

Automatic plastic pipe cap feeding equipment and pipe cap punching method thereof

Technical Field

The invention relates to off-line packaging of plastic pipes, in particular to automatic pipe cap loading equipment for plastic pipes and a pipe cap punching method thereof.

Background

Plastic tubing is typically produced in an extruder line and automatically cut to length (typically 3 or 4 meters). In order to ensure that the end of a slender pipe is not damaged by extrusion, collision and the like in the processes of packaging, storing and transporting, a PP (polypropylene) plastic pipe cap is usually sleeved at two ends of the pipe before packaging.

At present, a manual casing cap is generally adopted, the efficiency is low, manual operation is realized, and the labor intensity is high. In the prior art, a vibration disc is used for feeding, a pipe cap can be formed on one pipe at a time, and the efficiency is still low.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the automatic pipe cap feeding equipment for the plastic pipes, which can feed a plurality of pipes with pipe caps at one time, and can realize continuous casing caps of a batch of off-line pipes through continuous feeding and periodic circulation, thereby greatly improving the working efficiency.

The technical scheme adopted by the invention is as follows:

an automatic pipe cap feeding device for plastic pipes comprises a pipe material discharging workbench, a pipe cap vibrating disc feeding mechanism, a plastic pipe material feeding mechanism, a jacking transfer mechanism and a pipe cap beating mechanism;

the tail end of the pipe discharging workbench is butted with the initial position of the plastic pipe feeding mechanism, the tail end of the plastic pipe feeding mechanism is butted with the jacking transfer mechanism, the jacking transfer mechanism is arranged below the pipe cap beating mechanism, pipe cap vibrating disc feeding mechanisms are symmetrically arranged on two sides of the pipe discharging workbench, and a discharge port of the pipe cap vibrating disc feeding mechanism is butted with a feeding port of the pipe cap beating mechanism;

the jacking and transferring mechanism comprises a transferring underframe, wherein an air cylinder jacking frame is arranged on the transferring underframe, and four jacking air cylinders are arranged at four corners of the transferring underframe; the bottom of the transfer chassis is provided with a slide rail, and the transfer chassis is connected with the slide rail; the lower part of the slide rail is provided with a shifting cylinder, the head of the shifting cylinder is provided with a connecting plate, and the connecting plate is connected with the bottom of the shifting underframe; v-shaped teeth are arranged on the cylinder jacking frame;

the pipe cap beating mechanism comprises an upper clamping block, a lower clamping block, a horizontal pushing cylinder and a vertical blanking groove, wherein the upper clamping block is connected with clamping cylinders at the left end and the right end of the rack, and the lower clamping block is fixed on the supporting seat; the horizontal pushing cylinder is connected with an ejector rod, and the ejector rod pushes a pipe cap at the lowest part of the vertical blanking groove to the end surface of the pipe; the plastic pipe feeding mechanism comprises a speed reducing motor, the speed reducing motor drives a motor chain wheel to rotate, the motor chain wheel drives a driving chain wheel and a driven chain wheel to rotate through a chain, the driving chain wheel is connected with the driven chain wheel through a chain plate conveying line, and an L-row feeding groove is arranged on the chain plate conveying line;

pipe cap vibration dish feed mechanism includes vibration dish support, the vibration dish has been placed on the vibration dish support, the top edge department of vibration dish is equipped with a pipe cap blown down tank, the pipe cap blown down tank sets up under for the slant, and pipe cap blown down tank 22 links to each other with the oblique spout 25 on the pipe cap station of beating, divide into 4 perpendicular spout 26 baiting in the bottom of oblique spout 25, and the station is placed to each tributary unloading end correspondence tubular product.

Preferably, the tubular product blowing workstation includes the frame, lay the blowing baffle in the frame, the blowing baffle includes the straight board section of level setting and the inclined plate section that sets up to one side down, and plastics tubular product gets into from straight board section, and inclined plate section roll-off, and inclined plate section end is equipped with the dog.

Preferably, the motor sprocket transmits power to the drive sprocket through a two-stage intermediate sprocket.

Preferably, the chain plate chain transmission device further comprises an end plate, the driving chain wheel and the driven chain wheel are mounted on the end plate, the end plate is connected with a supporting base below the end plate, and the supporting base is connected with the chain plate line support.

A method for making a pipe cap of plastic pipe automatic pipe cap loading equipment comprises the following process steps:

A. the plastic pipes are sequentially paved into a layer by manpower, and sequentially rolled from the straight plate section to the stop block at the tail end of the inclined plate section one by one;

B. the L-shaped feeding groove on the chain plate conveying line of the plastic pipe feeding mechanism circumferentially rotates through the driving chain wheel and the driven chain wheel, the L-shaped feeding groove sequentially hooks the plastic pipes at the tail ends of the inclined plate sections into the grooves, and when the L-shaped feeding groove (35) is filled with the pipes, the chain plate line stops rotating;

C. lifting a cylinder lifting frame of the lifting and transferring mechanism, and transferring the plastic pipe corresponding to the chain plate conveying line onto the V-shaped teeth to be shifted to the position of the pipe cap to be punched;

D. vibrating the pipe caps in the disc hopper, conveying the pipe caps to each branch discharging outlet through a pipe cap discharging groove, after the plastic pipe is placed on a lower clamping block, namely a pipe cap punching station, through a jacking transfer mechanism, controlling the upper clamping block by a clamping cylinder (51), clamping two ends of the plastic pipe, horizontally pushing an ejector rod connected with the cylinder, pushing the pipe caps stored in the vertical discharging groove to the end surface of the pipe, and then sleeving the pipe caps to a certain depth;

E. after the pipe cap is punched, the upper clamping blocks are loosened, the pipe with the punched pipe cap is taken away by the jacking transfer mechanism, and the process of punching the pipe cap is completed.

Compared with the prior art, the invention has the following beneficial effects:

1. the automatic plastic pipe cap feeding device can realize high-efficiency pipe cap feeding operation of pipes by respectively automatically feeding and feeding the pipes and the pipe caps and automatically feeding the pipe caps by the air cylinder pipe cap feeding mechanism, can completely replace manual operation, saves labor cost, greatly reduces the production cost of the pipes, and is high in speed when used for feeding the pipe caps, and can complete more than 40 pipe cap operations per minute.

2. The automatic pipe cap feeding equipment for the plastic pipes, provided by the invention, can feed a plurality of pipes at one time, and then continuously feed the pipes, so that the continuous casing caps of a batch of off-line pipes can be realized through periodic circulation, the working efficiency is greatly improved, and meanwhile, the automatic pipe cap feeding equipment is simple in structure, convenient to operate and maintain and suitable for batch pipe cap feeding and packaging output of the plastic pipes.

Drawings

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

FIG. 1 is a schematic structural diagram of an apparatus for automatically mounting a cap on a plastic pipe according to the present invention;

FIG. 2 is a front view of the tube discharge workbench according to the present invention;

FIG. 3 is a schematic structural view of a pipe cap vibration disk feeding mechanism according to the present invention;

FIG. 4 is a front view of the plastic pipe feeding mechanism of the present invention;

FIG. 5 is a schematic view of the initial loading state of the plastic pipe loading mechanism according to the present invention;

FIG. 6 is a schematic view of the loading mechanism for plastic pipes according to the present invention in a fully loaded state;

fig. 7 is a schematic view of the jacking transfer mechanism of the present invention in an initial position;

FIG. 8 is a schematic diagram of the lifting and transferring mechanism of the present invention when the cylinder lifting frame is lifted;

fig. 9 is another schematic diagram of the state of the lifting and transferring mechanism of the cylinder lifting frame when the lifting and transferring mechanism is lifted;

fig. 10 is a schematic view of the state of the jacking transfer mechanism when the jacking transfer mechanism is dropped and reset;

FIG. 11 is a cross-sectional view of the cap making mechanism of the present invention;

FIG. 12 is a schematic view of the vertical chute of the cap beating mechanism of the present invention;

shown in the figure: 1-a pipe discharging workbench, 2-a pipe cap vibrating tray feeding mechanism, 3-a plastic pipe feeding mechanism, 4-a jacking transfer mechanism, 5-a pipe cap beating mechanism, 6-a discharging collecting rack, 11-a pipe discharging rack, 12-a discharging guide plate, 13-a stopper, 14-an inclined plate section, 15-a straight plate section, 16-a pipe, 21-a vibrating tray, 22-a pipe cap discharging groove, 23-a vibrating tray bracket, 24-a left and right supporting plate, 25-an inclined sliding groove, 26-a vertical sliding groove, 27-a pipe cap, 31-a speed reducing motor, 32-a motor chain wheel, 33-a middle chain wheel, 34-a driving chain wheel, 34-1 chain plate transmission line, 35-L-shaped feeding groove, 36-a driven chain wheel, 37-an end plate, 38-a supporting base, 39-underframe, 39-1-chain plate line bracket, 41-long frame plate, 42-lifting frame, 43-shifting underframe, 44-lifting cylinder, 45-slide rail, 46-shifting cylinder support, 47-shifting cylinder, 48-connecting plate, 51-clamping cylinder, 52-upper clamping block, 53-cylinder bracket, 54-lower clamping block, 55-support seat, 56-horizontal pushing cylinder and 57-ejector rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Before the present invention is introduced, it is first pointed out that the automatic loading of plastic pipe into pipe cap of the present invention mainly relates to the process of casing pipe cap after the PPR plastic pipe with nominal diameter of 20, 25, 32 mm is off-line and before packaging.

As shown in fig. 1 to 11, an embodiment of the present invention provides an automatic pipe cap feeding device for plastic pipes, which specifically includes a pipe discharging workbench 1, a pipe cap vibration tray feeding mechanism 2, a plastic pipe feeding mechanism 3, a jacking transfer mechanism 4, a pipe cap beating mechanism 5, and a discharging collection frame 6. The butt joint is carried out with plastics tubular product feed mechanism 3's initial position to tubular product blowing workstation 1's end, plastics tubular product feed mechanism 3's end and jacking move and carry the butt joint of moving mechanism 4 mutually, the jacking moves and carries mechanism 4 and install in the below of beating pipe cap mechanism 5, pipe cap vibration dish feed mechanism 2 is installed to the bilateral symmetry of tubular product blowing workstation 1, and the discharge gate of pipe cap vibration dish feed mechanism 2 docks with the material loading mouth of beating pipe cap mechanism 5. The pipe discharging workbench 1 is used for sequentially flatly laying pipes on a workbench surface one by one, so that subsequent automatic feeding is facilitated; the pipe cap vibrating tray feeding mechanism 2 can continuously and automatically convey plastic pipe caps which are intensively placed in a vibrating tray hopper to four material tanks according to a specified direction, and then automatically punch pipe caps on the pipes through a cylinder; the pipe feeding mechanism can sequentially place the pipes in the designated material groove through the L-shaped material taking groove 35 on the chain plate transmission-1; the pipe cap beating mechanism 5 vertically clamps two end parts of the pipe placed in the station by a split clamp, then pushes the pipe cap to the end part of the pipe by a horizontal pushing cylinder at the tail end and sleeves the pipe by a proper depth, and then the pipe cap sleeving process is completed; the jacking transfer mechanism 4 can automatically transfer the pipe to a station where a pipe cap is to be punched, and simultaneously transfer the pipe with the punched pipe cap to a discharge collection area; the discharging collection frame 6 is used for manually collecting the pipes with the pipe caps and preparing to enter the next packaging process.

Referring to fig. 2, the pipe discharging workbench 1 comprises a rack 11, and a discharging guide plate 12 is laid on the rack 11, wherein the discharging guide plate 12 comprises a straight plate section 15 arranged horizontally and an inclined plate section 14 arranged obliquely downwards, and a stop 13 is mounted at the tail end of the inclined plate section 14. When the automatic rolling machine works, plastic pipes enter from the straight plate sections 15 manually, are sequentially laid into a layer and kept neat manually, and sequentially roll to the tail end stop blocks 13 from the inclined plate sections 14 one by one.

Referring to fig. 3, the pipe cap vibration tray feeding mechanism 2 includes support plates 24 installed on two sides of the frame 11, a vibration tray support 23 is installed on the support plates 24, a vibration tray 21 is placed on the vibration tray support 23, the vibration trays 21 on two sides are symmetrically arranged, a pipe cap discharging groove 22 is arranged at the upper edge of the vibration tray 21, the pipe cap discharging groove 22 is obliquely arranged downwards, the pipe cap discharging groove 22 is connected with an inclined chute 25 on a pipe cap punching station, the bottom of the inclined chute 25 is divided into 4 vertical chutes 26 for discharging, the discharging end of each branch corresponds to a pipe placing station (totally 4 pipe placing stations), the discharging branches of the vibration tray are 4, of course, more than 4, such as 5, 6, etc., the number of pipes hooked at one time on corresponding chain plate lines, and the number of stations on the table top for punching pipe caps, and also 5 or 6 peers. For convenience and simplicity of description, the present invention is described in the specification with 4 (groups), as follows.

Referring to fig. 4 to 6, the plastic pipe feeding mechanism 3 is composed of 4 groups of conveying chain plate lines which are uniformly distributed on a working table surface in parallel and connected with the tail end of an inclined plate section 14 of the pipe discharging working table 1. Each group of chain plate conveying lines 34-1 consists of a driving chain wheel 34 and a driven chain wheel 36, wherein the driving chain wheel 34 is connected with the driven chain wheel 36 through a chain plate conveying line 34-1, the power of the driving chain wheel 34 is driven by a speed reducing motor 31 arranged on the bottom frame 3, the power is transmitted to the chain plate conveying line 34-1 through two-stage chain wheel transmission (two intermediate chain wheels 33 for transition are arranged between the motor chain wheel 32 and the driving chain wheel 34), and L-shaped feeding grooves 35 are arranged on the chain plate conveying line 34-1 at equal intervals (in the embodiment, 10L-shaped feeding grooves are uniformly arranged on the circumference of the chain plate conveying line 34-1). The L-shaped feeding groove 35 circumferentially rotates through the driving chain wheels and the driven chain wheels (34 and 36), the L-shaped feeding groove 35 can sequentially hook the pipes at the tail ends of the inclined plate sections 14 into the groove, and the chain plate conveying line 34-1 stops rotating after 4 material grooves are sequentially filled with the pipes. And after the pipe is taken away by the subsequent material taking mechanism, feeding the pipe in the next working cycle. Wherein the speed reducing motor 31 is fixed on the bottom frame 39, the driving chain wheel 34 and the driven chain wheel 36 are arranged on the end plate 37, and the end plate 37 is connected with the supporting base 38. The support base 38 is connected to the link plate wire support. The four groups of chain plate line supports are fixed on the base 39 according to a certain distance.

Referring to fig. 7 to 10, the lifting and transferring mechanism 4 includes a transferring underframe 43, an air cylinder lifting frame 42 is installed on the transferring underframe 43, lifting air cylinders 44 are installed at four corners of the transferring underframe 43, and the lifting and lowering of the air cylinder lifting frame 42 are controlled by the lifting air cylinders 44. The bottom of the transferring underframe 43 is provided with a slide rail 45, and the transferring underframe 43 is connected with the slide rail 45; the lower part of the slide rail 45 is provided with a transferring cylinder 47, the transferring cylinder 47 is arranged on a main cylinder seat 46, the head part of the transferring cylinder 47 is provided with a connecting plate 48, the connecting plate 48 is connected with the bottom part of the transferring underframe 43, and thus the transferring cylinder 47 can control the front and back displacement of the whole transferring mechanism. As shown in fig. 7, when the transfer chassis 43 is raised at the initial position, the V-shaped teeth mounted on the cylinder lifting frame 42 can move the corresponding 4 pipes on the chain plate transmission line 34-1 to the V-shaped teeth, and simultaneously lift up the 4 pipes with the pipe caps, at which time the frame is lifted up; as shown in fig. 8, the pipe is moved to the next station by the transferring cylinder 47 and falls down, four pipes to be capped are placed at the corresponding positions of the capping cylinder, and 4 pipes with caps are moved out of the cylinder jacking frame 42; as shown in fig. 9, during the falling of the cylinder lifting frame 42, the removed 4 pipes drop onto the discharging collection frame.

Referring to fig. 11 to 12, the pipe cap forming mechanism 5 includes an upper clamping block 52, a lower clamping block 54, a horizontal pushing cylinder 56 and a vertical blanking slot 26, the upper clamping block 52 is connected with clamping cylinders 51 at the left and right ends of the frame, and the lower clamping block 54 is fixed on a supporting seat 55; the horizontal pushing cylinder 56 is connected with a push rod 57, and the push rod 57 pushes the pipe cap at the lowest part of the vertical blanking groove 26 to the end surface of the pipe. After the pipe is placed at the pipe cap forming station through the jacking transfer mechanism 4, the upper clamping block and the lower clamping block (52 and 54) are controlled by cylinders at the left end and the right end of the rack, and the two ends of the pipe are clamped. At the tubular product placing station, the length direction end of tubular product through a pipe cap cylinder, with the pipe cap of storing in the silo 26 under the vertical, be in the terminal surface of the pipe cap propelling movement of below, embolia certain degree of depth again, the tight piece of clamp loosens this moment, the jacking moves carries the tubular product that mechanism 4 will beat the pipe cap and takes away, has accomplished the process of beating the pipe cap so far.

Referring to fig. 1, the discharging collecting rack 6 is arranged at the tail end of the whole equipment, and the pipes with the pipe caps are collected manually and prepared for entering a subsequent packaging process.

The working process of the invention is as follows:

when the automatic plastic pipe loading equipment works, as shown in fig. 1, the pipe 16 is manually placed through the straight plate section 15, then is manually and sequentially laid flat into a layer and kept neat, and sequentially rolls one by one to the stop block 13 at the tail end of the inclined plate section 14 through the inclined plate section 14.

4 groups of chain plate conveying lines 34-1 on the plastic pipe feeding mechanism 3 are connected with the tail end of the inclined plate section 14 of the plastic pipe discharging workbench 1, as shown in fig. 5, L-shaped feeding grooves 35 which are uniformly distributed on the inclined plate section 14 at equal intervals circumferentially rotate through driving and driven chain wheels (34 and 36), and the L-shaped feeding grooves 35 sequentially hook the pipes at the tail end of the inclined plate section 14 into the grooves. As shown in fig. 6, when the 4L-shaped feeding troughs 35 on the work table are full of pipes, the chain link line stops rotating.

As shown in fig. 7, the lifting and transferring mechanism 4 is at the initial position, as shown in fig. 8, when the cylinder lifting frame 42 is lifted, the V-shaped teeth mounted on the long frame plate 41 on the cylinder lifting frame 42 move the 4 corresponding pipes on the link plate conveying line 34-1 to the V-shaped teeth, and simultaneously support the 4 pipes with the pipe caps, as shown in fig. 9, to the next station through the transferring cylinder 43, at this time, the 4 pipes on the link plate line have been shifted to the positions of the pipe caps to be punched, and the 4 pipes with the pipe caps being punched have been moved out of the rack. As shown in fig. 10, in the process that the cylinder lifting frame 42 falls and resets, when the 4 pipes moved outside the frame retract on the long frame plate 41, the pipes are blocked by the edge of the bottom frame and fall onto the discharging and collecting frame 6.

As shown in figure 3, a pipe cap is arranged in the vibration disc hopper and is sent to 4 branch blanking outlets through a pipe cap discharging groove 22, after a pipe is placed on a lower clamping block 54, namely a pipe cap forming station, through a jacking transfer mechanism 4, as shown in figure 11, the lower clamping block 54 is fixed on a supporting seat 55, a clamping cylinder is fixed on a cylinder bracket 53, and the upper clamping block 52 is controlled by clamping cylinders 51 at the left end and the right end of a frame to clamp the two ends of the pipe. At the pipe placing station, the pipe is placed at the end of the length direction, the push rod 57 connected through the horizontal pushing cylinder 56 pushes the pipe cap stored in the vertical blanking groove to the end surface of the pipe at the lowest part, then the pipe cap is sleeved with a certain depth, the upper clamping block 52 is loosened, the pipe with the pipe cap being punched is taken away by the jacking transfer mechanism, and the pipe punching process is completed.

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

Claims

1. The utility model provides an automatic top tube cap equipment of plastics tubular product which characterized in that: the pipe-jacking-moving device comprises a pipe discharging workbench, a pipe cap vibrating disc feeding mechanism, a plastic pipe feeding mechanism, a jacking-moving mechanism and a pipe cap beating mechanism;

the pipe cap beating mechanism comprises an upper clamping block, a lower clamping block, a horizontal pushing cylinder and a vertical blanking groove, wherein the upper clamping block is connected with clamping cylinders at the left end and the right end of the rack, and the lower clamping block is fixed on the supporting seat; the horizontal pushing cylinder is connected with an ejector rod, and the ejector rod pushes a pipe cap at the lowest part of the vertical blanking groove to the end surface of the pipe; the plastic pipe feeding mechanism comprises a speed reducing motor, the speed reducing motor drives a motor chain wheel to rotate, the motor chain wheel drives a driving chain wheel and a driven chain wheel to rotate through a chain, the driving chain wheel is connected with the driven chain wheel through a chain plate conveying line, and an L-shaped feeding groove is arranged on the chain plate conveying line;

pipe cap vibration dish feed mechanism includes vibration dish support, the vibration dish has been placed on the vibration dish support, the top edge department of vibration dish is equipped with a pipe cap blown down tank, the pipe cap blown down tank sets up for oblique downwards, and the pipe cap blown down tank links to each other with the oblique spout of beating on the pipe cap station, divide into 4 perpendicular spout unloads in the bottom of oblique spout, and each tributary unloading end corresponds a tubular product and places the station.

2. The automatic pipe capping apparatus of claim 1, wherein: the pipe discharging workbench comprises a rack, a discharging guide plate is laid on the rack and comprises a straight plate section and an inclined plate section, the straight plate section is horizontally arranged, the inclined plate section is obliquely and downwards arranged, plastic pipes enter from the straight plate section, the inclined plate section slides out, and a stop block is arranged at the tail end of the inclined plate section.

3. The automatic pipe capping apparatus of claim 2, wherein: the motor chain wheel transmits power to the driving chain wheel through two stages of middle chain wheels.

4. The automatic pipe capping apparatus of claim 3, wherein: the chain plate line support is characterized by further comprising an end plate, wherein the driving chain wheel and the driven chain wheel are both arranged on the end plate, the end plate is connected with a supporting base below the end plate, and the supporting base is connected with a chain plate line support.

5. A capping method for an automatic capping device of plastic pipes according to any one of claims 1 to 3, characterized by comprising the following process steps: