CN112936407B

CN112936407B - Automatic cutting system and cutting method for PVC (polyvinyl chloride) pipe

Info

Publication number: CN112936407B
Application number: CN202110130906.5A
Authority: CN
Inventors: 张长权; 刘芳婷; 骆炎星; 乐见协
Original assignee: Shandong Hongtai Plastic Industry Co ltd
Current assignee: Shandong Hongtai Plastic Industry Co ltd
Priority date: 2019-03-05
Filing date: 2019-03-05
Publication date: 2022-08-30
Anticipated expiration: 2039-03-05
Also published as: CN109877901B; CN109877901A; CN112936407A

Abstract

The invention discloses an automatic cutting system and a cutting method of a PVC pipe, and the automatic cutting system and the cutting method structurally comprise a base, a control panel, a workbench, a conveying rail, a conveying wheel, a cutting mechanism and a discharging plate, wherein the workbench is positioned at the top of the base; cutting mechanism comprises baffle, scraping device, cutting knife, and the baffle sets up beneficial effect for the symmetry: the front end and the rear end of the cutting knife are provided with two mutually opposite scraping plates, the elastic scraping plates are provided with elastic scraping plates and balls, the cutting knife is contacted with the balls, so that the elastic scraping plates can scrape fine layer scraps on front and rear knife surfaces of the cutting knife from top to bottom, suction force is generated through the negative pressure adsorption channel, the fine layer scraps on the cambered surface are sucked into the negative pressure adsorption channel through the suction port and then fall into the collection box through the collection chute; preventing the cutting process from being affected.

Description

Automatic cutting system and cutting method for PVC (polyvinyl chloride) pipe

The invention relates to a divisional application of an automatic PVC pipe cutting system and a cutting method, wherein the application date is 2019, 3, 5 and the application number is CN 201910164694.5.

Technical Field

The invention discloses an automatic cutting system and a cutting method for a PVC pipe, and belongs to the technical field of PVC pipeline processing devices.

Background

The PVC pipe is a common synthetic material in life, is frequently used in life and is expected to be wide in other fields; because the length of finished product PVC pipe all has the specification, when using, will cut its length according to different use places and environment sometimes, cuts out the size that meets the requirements, but there is following not enough in the cutting process:

PVC pipe can be divided into soft PVC and hard PVC, when cutting hard PVC, because hard PVC is outmost to be one deck paint film, when the cutting knife cuts off it, the knife tip can cut up hard PVC cutting department's the outermost lacquer layer, and the lacquer layer will be broken into tiny layer bits, because the cutting knife is the cutting of making a round trip once on one, knife face and hard PVC's cutting plane frequent contact can produce slight static, with the tiny layer bits attached to on the knife face, influence the cutting effect.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an automatic cutting system and a cutting method of a PVC pipe so as to solve the problems.

In order to achieve the purpose, the invention is realized by the following technical scheme: the automatic pipe cutting device structurally comprises a base, a control panel, a workbench, a conveying rail, a conveying wheel, a cutting mechanism and a discharging plate, wherein the workbench is positioned at the top of the base, the conveying rail and the conveying wheel are mounted on the workbench, the cutting mechanism is mounted at the front end of the conveying wheel, and the discharging plate is mounted at the bottom of the cutting mechanism; the cutting mechanism is composed of a baffle, a scraping device and a cutting knife, the baffle is symmetrically arranged and is respectively arranged on the front side and the rear side of the cutting knife at equal intervals, and the scraping device is arranged on the inner side of the baffle.

Preferably, scraping device comprises spacing post, hinge bar, scraper blade, torsional spring, scraping head, both ends all pass through hinge bar and baffle about both sides hinged joint about the scraper blade, the winding has the torsional spring on the hinge bar, the torsional spring is terminal to contact with one side of spacing post, the top of scraper blade is equipped with scrapes the head.

Preferably, the scraping head is of a semicircular long strip structure, a round head and an elastic scraping blade are arranged on the scraping head, the section of the elastic scraping blade is a triangular elastic scraping blade, and the tail end of the elastic scraping blade is an arc-shaped tip.

Preferably, the front surface of the elastic scraping piece is provided with four material suction ports, humps are arranged on the left side and the right side of each material suction port, the end ports of the material suction ports are of umbrella-shaped structures, the number of the humps is three, the front surface of the elastic scraping piece is uniform and equidistant, and the arc outer layer of each hump is wrapped by one antistatic composite adhesive layer.

Preferably, the scraper is internally provided with a negative pressure adsorption channel and four adsorption channels, one end of each adsorption channel is communicated with the material suction port, and the other end of each adsorption channel is communicated with the negative pressure adsorption channel.

Preferably, five circular grooves are formed in one side, close to the cutting knife, of the round head, balls are nested in the circular grooves, and an opening is formed in the upper right corner of each circular groove and is in rolling fit with the balls.

Preferably, the inner part of the baffle is provided with a collecting chute, one end of the collecting chute is connected with an external negative pressure fan, and the other end of the collecting chute is connected with the negative pressure adsorption pipeline through a hose.

Preferably, the top end of the negative pressure adsorption channel is of an inverted conical opening structure, and the inner surface of the negative pressure adsorption channel is provided with an anti-static composite adhesive layer, so that paint layer chips are prevented from being attached to the inside of the negative pressure adsorption channel again due to friction.

Advantageous effects

The automatic cutting system and the cutting method for the PVC pipe have the following beneficial effects:

two mutually opposite scraping plates are arranged in a cutting mechanism, elastic scraping plates and balls are arranged on the scraping plates, and a cutting knife moves back and forth up and down and is in contact with the balls, so that fine layer scraps on front and back knife surfaces of the cutting knife can be scraped down by the elastic scraping plates from top to bottom, and the scraped fine layer scraps can fall on an arc surface of the elastic scraping plates; then, suction force is generated through the negative pressure adsorption channel, the fine layer scraps on the cambered surface are sucked into the negative pressure adsorption channel through the suction port and then fall into the collection box through the collection chute; preventing an influence on the cutting process.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic perspective view of an automatic cutting system and a cutting method for PVC pipes according to the present invention;

FIG. 2 is a schematic view of the left side of a cutting mechanism according to the present invention;

FIG. 3 is a schematic cross-sectional view of the left side of a cutting mechanism according to the present invention;

FIG. 4 is a schematic structural view of a front side of a cutting blade according to the present invention;

FIG. 5 is a schematic view of a front half-sectional view of a cutting blade according to the present invention;

FIG. 6 is a schematic view of a partial structure of a squeegee head according to the present invention;

fig. 7 is an enlarged view of a structure in fig. 6.

In the figure: the device comprises a base-1, a control panel-2, a workbench-3, a conveying track-4, a conveying wheel-5, a cutting mechanism-6, a discharging plate-7, a baffle-61, a scraping device-62, a cutting knife-63, a limiting column-621, a hinge rod-622, a scraping plate-623, a torsion spring-624, a scraping head-625, a round head-625 a, an elastic scraping blade-625 b, a material suction port-b 1, a hump-b 2, a negative pressure adsorption channel-623 a, an adsorption channel-623 b, a circular groove-a 1, a ball-a 2 and an aggregate chute-611.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1-7, the present invention provides an automatic cutting system and a cutting method for PVC pipes, which comprises:

as shown in fig. 1-2: the automatic cutting machine structurally comprises a base 1, a control panel 2, a workbench 3, a conveying rail 4, a conveying wheel 5, a cutting mechanism 6 and a discharging plate 7, wherein the workbench 3 is positioned at the top of the base 1, the conveying rail 4 and the conveying wheel 5 are installed on the workbench 3, the cutting mechanism 6 is installed at the front end of the conveying wheel 5, and the discharging plate 7 is installed at the bottom of the cutting mechanism 6; the method is characterized in that:

the cutting mechanism 6 is composed of a baffle 61, a scraping device 62 and a cutting knife 63, the baffle 61 is symmetrically arranged, and is respectively and equidistantly arranged on the front side and the rear side of the cutting knife 63, the scraping device 62 is respectively arranged on the inner side of the baffle 61, and paint layer chips attached to the two sides of the cutting knife 63 can be scraped.

As shown in fig. 3: wherein, scraping device 62 is by spacing post 621, hinge bar 622, scraper blade 623, torsional spring 624, scrape the head 625 and constitute, both ends all pass through hinge bar 622 and baffle 61 about both sides hinged joint about scraper blade 623, the winding has torsional spring 624 on the hinge bar 622, torsional spring 624 end contacts with one side of spacing post 621, the top of scraper blade 623 is equipped with scrapes head 625, and cutting knife 63 is when the downcut, knife face with scrape the head 625 contact, can have a decurrent power to scraper blade 623, take place certain swing, make torsional spring 624 extrusion deformation, when cutting knife 63 with scrape when the head 625 breaks away from, can make scraper blade 623 reset.

The scraping head 625 is of a semicircular long strip structure, the round head 625a and the elastic scraping blade 625b are arranged on the scraping head 625, the section of the elastic scraping blade 625b is a triangular elastic scraping blade, the tail end of the elastic scraping blade 625b is a circular arc-shaped tip c, and the cutting knife 63 is prevented from being scratched by the circular arc-shaped tip c.

As shown in fig. 6: the front of the elastic scraping blade 625b is provided with four material suction ports b1, humps b2 are mounted on the left side and the right side of the material suction port b1, the port of the material suction port b1 is of an umbrella-shaped structure, the humps b2 are uniformly arranged on the front of the elastic scraping blade 625b at equal intervals, and the arc outer layer of the humps b2 is wrapped with an anti-static composite adhesive layer to prevent the scraps from being attached again on the humps b2 due to static electricity.

As shown in fig. 4-5: the scraper 623 is internally provided with a negative pressure adsorption channel 623a and an adsorption channel 623b, the scraper 623 is internally provided with four adsorption channels 623b, one end of each adsorption channel 623b is communicated with the suction port b1, and the other end of each adsorption channel 623b is communicated with the negative pressure adsorption channel 623 a.

The round head 625a is close to the opening of one side of the cutting knife 63 and is provided with five circular grooves a1, balls a2 are nested in the circular grooves a1, the upper right corner of the circular grooves a1 is provided with an opening, the opening is in rolling fit with the balls a2, the balls a2 and the knife face of the cutting knife 63 are in rolling friction, resistance is reduced, and the knife face is prevented from being scratched.

As shown in fig. 3: wherein, the baffle 61 is internally provided with a material collecting chute 611, one end of the material collecting chute 611 is connected with an external negative pressure fan, and the other end is connected with the negative pressure adsorption passage 623a through a hose.

The top end of the negative pressure adsorption channel 623a is of an inverted cone-shaped opening structure, the inner surface of the negative pressure adsorption channel is provided with a layer of anti-static composite adhesive layer, paint layer fragments are prevented from being attached to the negative pressure adsorption channel 623a again due to friction, and the centralized processing of the paint layer fragments is facilitated.

The specific implementation principle is as follows: placing a hard PCV pipe to be cut on a conveying track 4 on a workbench 3, starting the device through a button on a control panel 2, and conveying the hard PCV pipe to a cutting mechanism 6 by a conveying wheel 5 for cutting; when the cutting knife 63 frequently cuts the hard PCV tube, because the hard PCV tube and the cutting knife 63 are in a dry state, fine static electricity can be generated when the knife face is frequently contacted with the cutting face of the hard PVC, a plurality of fine layer scraps can be adsorbed on two end faces of the cutting knife 63, when the cutting knife 63 moves downwards, the knife face can be contacted with the ball a2, the scraper 623 is enabled to move downwards to compress the torsion spring 624, meanwhile, the elastic scraper 625b can be contacted with the knife face, when the cutting knife 63 continues to move downwards, the elastic scraper 625b contacted with the knife face can scrape the fine layer scraps on the knife face of the cutting knife 63 from top to bottom, and the scraped fine layer scraps can fall on the arc face of the elastic scraper 625 b; at this time, the negative pressure fan inside the worktable 3 works to generate suction to the negative pressure adsorption channel 623a, and the fine layer scraps on the cambered surface are sucked into the negative pressure adsorption channel 623 through the suction port b1 through the adsorption channel 623b and then fall into the collection box through the collection chute 611; after cutting knife 63 accomplished the cutting, upwards draw and break away from with elastic doctor blade 625b, torsional spring 624 resilience performance makes scraper blade 623 have an ascending elasticity, shake and shake the tiny layer bits of remaining on hump b2 and shake off in inhaling material mouth b1, because the compound glue film of static is prevented to the outer parcel one deck on hump b2, tiny layer bits can not be because of static attached to hump b2, through such a mode, can strike off the tiny layer bits on the face of cutting knife 63 front and back both ends, prevent to produce the influence to the cutting in-process.

The foregoing merely illustrates the principles and preferred embodiments of the invention and many variations and modifications may be made by those skilled in the art in light of the foregoing disclosure, which are intended to be within the scope of the invention.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The automatic PVC pipe cutting device structurally comprises a base (1), a control panel (2), a workbench (3), a conveying rail (4), a conveying wheel (5), a cutting mechanism (6) and a discharging plate (7), wherein the workbench (3) is located at the top of the base (1), the conveying rail (4) and the conveying wheel (5) are installed on the workbench (3), the cutting mechanism (6) is installed at the front end of the conveying wheel (5), and the discharging plate (7) is installed at the bottom of the cutting mechanism (6); the method is characterized in that: the cutting mechanism (6) comprises a baffle (61), a scraping device (62) and a cutting knife (63), the baffle (61) is arranged on the front side and the rear side of the cutting knife (63), the scraping device (62) is arranged on the inner side of the baffle (61), the scraping device (62) comprises a limit column (621), a hinge rod (622), a scraping plate (623), a torsion spring (624) and a scraping head (625), the scraping plate (623) is connected with the baffle (61) through the hinge rod (622), the hinge rod (622) is wound with the torsion spring (624), the tail end of the torsion spring (624) is contacted with one side of the limit column (621), the top end of the scraping plate (623) is provided with a scraping head (625), the scraping head (625) is of a semicircular long strip structure, the scraping head (625) is provided with a round head (625a) and an elastic scraping blade (625b), the section of the elastic scraping blade (625b) is a triangular elastic scraping blade, the tail end of the elastic scraping blade (625b) is a circular arc-shaped pointed head (c), more than two suction ports (b1) are formed in the front surface of the elastic scraping blade (625b), humps (b2) are arranged on the left side and the right side of the suction port (b1), the port of the material suction port (b1) is of an umbrella-shaped structure, the arc outer layer of the hump (b2) is wrapped with an anti-static composite adhesive layer, the interior of the scraper (623) is provided with a negative pressure adsorption channel (623a) and an adsorption channel (623b), more than two adsorption channels (623b) are arranged in the scraper (623), the adsorption channels (623b) are communicated with the negative pressure adsorption channel (623a), more than two circular grooves (a1) are arranged on one side of the round head (625a) close to the cutting knife (63), balls (a2) are nested in the circular grooves (a1), the upper right corner of the circular groove (a1) is provided with an opening, and the opening is in rolling fit with the ball bearing (a 2); placing a hard PCV pipe to be cut on a conveying track (4) on a workbench (3), and starting equipment through a button on a control panel (2), wherein the hard PCV pipe is conveyed to a cutting mechanism (6) by a conveying wheel (5) to be cut off; when the cutting knife (63) frequently cuts the hard PCV tube, because the hard PCV tube and the cutting knife (63) are in a dry state, fine static electricity can be generated when knife faces are frequently contacted with a cutting face of hard PVC, a plurality of fine layer scraps can be adsorbed on two end faces of the cutting knife (63), when the cutting knife (63) moves downwards, the knife faces can be contacted with the ball (a2), the scraper (623) is enabled to move downwards to compress the torsion spring (624), meanwhile, the elastic scraper (625b) can be contacted with the knife faces, and when the cutting knife (63) continues to move downwards; the elastic scraping blade (625b) contacted with the elastic scraping blade can scrape off fine layer scraps on the cutter surface of the cutting knife (63) from top to bottom, and the scraped fine layer scraps can fall on the cambered surface of the elastic scraping blade (625 b); at the moment, a negative pressure fan in the workbench (3) works to generate suction to a negative pressure adsorption channel (623a), and the fine layered scraps on the cambered surface are sucked into the negative pressure adsorption channel (623a) through a suction port (b1) through an adsorption channel (623b) and then fall into a collection box through a collection chute (611); after cutting knife (63) accomplished the cutting, upwards extract and break away from with elastic doctor blade (625b), torsional spring (624) restorability makes scraper blade (623) have an ascending elasticity, shake and shake during the tiny layer bits of remaining on with hump (b2) shake out and inhale material mouth (b1), because hump (b2) are gone up the outer layer and are being wrapped up the compound glue film of one deck antistatic, tiny layer bits can not be because of static attached to hump (b2), through such a mode, can strike off the tiny layer bits on the both ends face around cutting knife (63), prevent to produce the influence in the cutting process.