Cutting device for PE pipe production

Abstract

The invention provides a cutting device for PE pipe production, and belongs to the technical field of PE pipe ring cutting. Comprising a cutting driving part, a negative pressure outer supporting part is installed on the cutting driving part, a guiding part is installed on the negative pressure outer supporting part, and the guiding part is used for guiding a PE hose; the negative-pressure outer supporting piece is used for adsorbing the PE hose under negative pressure; a rotary control piece is mounted on the cutting driving piece; the rotation control piece is used for controlling rotation around the PE hose; a cutting part is mounted on the inner side of the rotary control piece; and the cutting part is used for annularly cutting the PE hose. The negative pressure outer supporting piece is arranged, negative pressure generated by vacuum suction is utilized, the outer wall of a pipe fitting is adsorbed for positioning, the stability of a hose can be guaranteed during follow-up cutting, and the adopted guiding piece can support the interior of the hose in real time; the problems that according to an existing cutting device for PE pipe production, it is inconvenient to use negative pressure to position a hose to guarantee the ring cutting quality, and it is inconvenient to automatically conduct multi-angle crumple protection are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of circumferential cutting of PE pipes, and particularly relates to a cutting device for PE pipe production. Background Art

[0002] PE pipes are thermoplastic pipes made mainly of polyethylene, with wide application fields and excellent performance characteristics. Among them, PE hoses meet food contact standards, are odorless and non-toxic, and are widely used in scenarios such as pillow fillers.

[0003] Currently, the cutting device for PE pipe production usually directly presses down to cut the PE hose. During the downward pressing of the blade, the hose will be squeezed, resulting in an excessive ovality of the cut pipe. Moreover, the soft physical characteristics of the hose cause problems in circumferential cutting. It is not convenient to use negative pressure to position the hose to ensure the circumferential cutting quality, and it is also not convenient to automatically control the circumferential cutting perpendicularity by internal support positioning. It is easy to cause the cutting head and tail not to intersect, and the cutting effect is poor. At the same time, as the circumferential cutting tool wears with use, it is not convenient to automatically carry out multi-angle collapse protection. Directly using a dull knife results in a poor cutting section, and it is also easy to cause additional damage to the PE pipe due to the unqualified sharpness of the tool. Therefore, this application provides a cutting device for PE pipe production to meet the requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a cutting device for PE pipe production to solve the problems that the existing cutting device for PE pipe production is not convenient to use negative pressure to position the hose to ensure the circumferential cutting quality and is not convenient to automatically carry out multi-angle collapse protection.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A cutting device for PE pipe production, including a cutting driving member, a negative pressure outer support member is installed on the cutting driving member, a guiding member is installed on the negative pressure outer support member, and the guiding member is used to guide the PE hose; the negative pressure outer support member is used for negative pressure adsorption of the PE hose; a rotation control member is installed on the cutting driving member; the rotation control member is used to control rotation around the PE hose; a cutting portion is installed inside the rotation control member; the cutting portion is used for circumferentially cutting the PE hose; a magnetic attraction traction member is installed inside the rotation control member; a multi-directional collapse member is installed on the cutting portion; the multi-directional collapse member is used to prompt cutting safety; the cutting driving member includes: a cutting mounting frame and a driving motor, a driving motor is fixedly installed on the cutting mounting frame, and a gear is fixedly installed on the output shaft of the driving motor; four slot holes are opened on the cutting mounting frame.

[0006] Optionally, the cutting driving member includes: a threaded connection cylinder, and two threaded connection cylinders are fixedly installed on the cutting mounting frame.

[0007] Optionally, the negative pressure outer support member includes two pipe fitting positioning cylinders respectively threadedly connected to two threaded connection cylinders, and the two pipe fitting positioning cylinders are of a double-layer hollow structure; a negative pressure groove is provided in the middle of the two pipe fitting positioning cylinders; the tails of the two pipe fitting positioning cylinders are of a dodecagonal structure; the inner through holes of the two pipe fitting positioning cylinders are used to pass through the PE hose; the negative pressure groove is used to adsorb the PE hose; a negative pressure pipe is fixedly installed between the two pipe fitting positioning cylinders, and the negative pressure pipe is externally connected to a vacuum pump; the negative pressure pipe is a three-way pipe, and the negative pressure pipe communicates with the two pipe fitting positioning cylinders; magnetic attraction electromagnets are fixedly sleeved inside the two pipe fitting positioning cylinders respectively; the inner sides of the ends of the two pipe fitting positioning cylinders are respectively chamfered.

[0008] Optionally, the guiding member includes a guiding column located at the inner through holes of the two pipe fitting positioning cylinders; the outer side of the guiding column is used to pass through the PE hose; an annular groove is provided in the middle of the guiding column; the annular groove is located between the two pipe fitting positioning cylinders; there is a gap between the outer side of the guiding column and the inner side of the inner through hole of the pipe fitting positioning cylinder.

[0009] Optionally, the guiding member further includes two built-in magnets fixedly embedded inside the guiding column; the two magnetic attraction electromagnets are respectively aligned with the built-in magnets; the two magnetic attraction electromagnets respectively magnetically attract the built-in magnets.

[0010] Optionally, the rotary control member includes a fixed ring fixedly installed on the cutting installation frame; a rotary ring is rotatably sleeved inside the fixed ring; a ring of meshing teeth is provided on the outer side of the rotary ring, and the meshing teeth on the outer side of the rotary ring mesh with the gear on the output shaft of the driving motor.

[0011] Optionally, the cutting part includes a circumferential cutting swing arm rotatably installed inside the rotary ring; a reset magnet is fixedly installed at the end of the circumferential cutting swing arm, and the reset magnet magnetically attracts and fits the rotary ring; a through groove is provided in the middle of the circumferential cutting swing arm; the circumferential cutting swing arm is made of iron metal structure; a tool holder is slidably inserted into the through groove in the middle of the circumferential cutting swing arm; two positioning bolts are threadedly connected to the tool holder; two arc-shaped slot holes are provided on the side of the tool holder; a cutting blade is inserted into the tool holder; the end parts of the two positioning bolts respectively press and fit the side of the cutting blade; the cutting blade is located between the two pipe fitting positioning cylinders.

[0012] Optionally, the magnetic attraction traction member includes a magnetic attraction swing arm rotatably installed inside the rotary ring; a cutting force increasing electromagnet is fixedly sleeved at the end of the magnetic attraction swing arm; the cutting force increasing electromagnet is aligned with the circumferential cutting swing arm; the cutting force increasing electromagnet is used to magnetically attract the circumferential cutting swing arm to press down; a V-shaped elastic piece is installed at the bottom of the magnetic attraction swing arm; the V-shaped elastic piece is used for elastic pressure; the bottom of the V-shaped elastic piece is fixedly installed inside the rotary ring; the elastic force of the V-shaped elastic piece is much greater than the magnetic attraction force of the reset magnet.

[0013] Optionally, the multi-directional collapsible member includes two positioning shells fixedly installed on the circumferential cutting swing arm; collapsible columns are respectively slidably installed inside the two positioning shells; springs are fixedly installed at the tails of the collapsible columns, and the springs at the tails of the collapsible columns are located inside the positioning shells; the ends of the two collapsible columns are respectively hemispherical structures; the ends of the two collapsible columns are respectively inserted into two arc-shaped slot holes provided on the side of the tool holder; the insertion amount of the collapsible columns on the tool holder is less than the radius of the hemispherical structure at the end of the collapsible columns.

[0014] Optionally, the multi-directional collapsible member further includes switches respectively fixedly installed at the tails of the two positioning shells, and the two switches are respectively electrically connected to the cutting force increasing electromagnet; the two switches are respectively aligned with the tails of the two collapsible columns.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above solution, by setting the negative pressure outer support member, during the actual pipe fitting cutting work, the negative pressure generated by vacuum suction can be used to adsorb the outer wall of the pipe fitting for positioning, and the stability of the hose can be ensured during subsequent cutting. The guiding member adopted can support the hose internally in real time to ensure the perpendicularity of the hose to the cutting blade during cutting, with higher cutting accuracy. Using magnetic positioning, the structure is more reasonable. The guiding member can also play a role in guiding the hose. As the hose is cut off, the guiding column can guide the cut-off hose to be discharged to avoid jamming at the end of the pipe fitting positioning cylinder.

[0016] By setting the cutting part in cooperation with the rotary control member, the hose can be quickly cut in a circumferential manner, avoiding extrusion damage caused when the cutting knife directly presses down to cut the pipe fitting, ensuring that the ellipticity of the end of the pipe fitting after cutting meets the standard, avoiding extrusion damage to the pipe fitting. At the same time, the magnetic attraction traction member of this structure can use magnetic attraction to provide cutting pressure and achieve elastic downward pressure. When there are problems such as notches in the cutting tool and it is difficult to press down and cut through the pipe fitting, elastic adaptation can be carried out to avoid the cutting tool from directly breaking.

[0017] By setting the multi-directional collapsible member, multi-directional collapse can be achieved. When the cutting blade becomes dull or has a notch and cannot continue the cutting work, it can assist the cutting blade to collapse, and multi-angle collapse can be realized to ensure the protection effect, avoid uneven cutting sections, burrs and obvious reduction in cutting speed caused by continuous downward pressure, and it is also convenient for the staff to replace the cutting blade in time after learning. At the same time, after the cutting blade of this structure, the cutting force increasing electromagnet can be timely controlled to cut off the power supply to avoid continuous downward pressure and reduce damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0019] Figure 1 Schematic three-dimensional structure diagram of a cutting device for PE pipe production; Figure 2 Schematic rear structure diagram of a cutting device for PE pipe production; Figure 3 Schematic diagram of the installation position of a magnetic attraction traction member; Figure 4 Schematic enlarged three-dimensional structure diagram of a cutting drive member; Figure 5 Schematic enlarged three-dimensional structure diagram of a negative pressure outer support member; Figure 6 Schematic enlarged three-dimensional structure diagram of a guiding member; Figure 7 Schematic diagram of the position of a negative pressure groove; Figure 8 Schematic enlarged three-dimensional structure diagram of a rotation control member; Figure 9 Schematic enlarged three-dimensional structure diagram of a cutting part; Figure 10 Schematic enlarged three-dimensional structure diagram of a multi-directional collapse member; Figure 11 Cross-sectional view of the structure of a collapse column.

[0020] Reference numerals 1. Cutting drive member; 101. Cutting mounting frame; 102. Driving motor; 103. Threaded connection cylinder; 2. Negative pressure outer support member; 201. Pipe fitting positioning cylinder; 2011. Negative pressure groove; 202. Negative pressure pipe; 203. Magnetic attraction electromagnet; 3. Guiding member; 301. Guide post; 3011. Annular groove; 302. Built-in magnet; 4. Rotation control member; 401. Fixed ring; 4011. Rotating ring; 5. Cutting part; 501. Circumferential cutting swing arm; 5011. Reset magnet; 502. Tool holder; 503. Positioning bolt; 504. Cutting blade; 6. Magnetic attraction traction member; 601. Magnetic attraction swing arm; 602. Cutting force increasing electromagnet; 603. V-shaped elastic piece; 7. Multi-directional collapse member; 701. Positioning shell; 702. Collapse column; 703. Switch.

[0021] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic needs and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed implementation manners

[0022] The following provides a detailed description of a cutting device for PE pipe production provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0023] It should be noted that in the specification, references to "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe a specific feature, structure, or characteristic, implementing such feature, structure, or characteristic in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0024] Generally, terms can be understood, at least in part, from their use in context. For example, at least in part depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, can allow for the existence of other factors that may not be explicitly described.

[0025] It can be understood that the meanings of "on...", "above...", and "over..." in the present invention should be interpreted in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above..." or "over..." not only means "above" or "over" something, but can also include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0026] In addition, spatial relative terms such as "beneath", "below", "lower", "above", "upper", etc. are used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the accompanying drawings. Spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device can be oriented in other ways, and the spatial relative descriptors used herein can be interpreted accordingly.

[0027] As Figures 1 to 11As shown in the figure, an embodiment of the present invention provides a cutting device for PE pipe production, including a cutting driving member 1, on which a negative pressure outer support member 2 is installed, on which a guiding member 3 is installed for guiding a PE hose; the negative pressure outer support member 2 is used for sucking and adsorbing the PE hose by negative pressure; a rotary control member 4 is installed on the cutting driving member 1; the rotary control member 4 is used for controlling the rotation around the PE hose; a cutting portion 5 is installed inside the rotary control member 4 for circumferentially cutting the PE hose; a magnetic attraction traction member 6 is installed inside the rotary control member 4; a multi-directional collapse member 7 is installed on the cutting portion 5 for prompting cutting safety; the cutting driving member 1 includes a cutting mounting frame 101 and a driving motor 102, the driving motor 102 is fixedly installed on the cutting mounting frame 101, and a gear is fixedly installed on the output shaft of the driving motor 102; four slot holes are opened on the cutting mounting frame 101.

[0028] As Figures 4 to 7 As shown in the figure, the cutting driving member 1 includes a threaded connection cylinder 103, and two threaded connection cylinders 103 are fixedly installed on the cutting mounting frame 101; the negative pressure outer support member 2 includes two pipe fitting positioning cylinders 201 respectively threadedly connected to the two threaded connection cylinders 103, and the two pipe fitting positioning cylinders 201 are of a double-layer hollow structure; a negative pressure groove 2011 is provided in the middle of the two pipe fitting positioning cylinders 201; the tails of the two pipe fitting positioning cylinders 201 are of a dodecagonal structure; the inner through holes of the two pipe fitting positioning cylinders 201 are used for passing through the PE hose; the negative pressure groove 2011 is used for adsorbing the PE hose; a negative pressure pipe 202 is fixedly installed between the two pipe fitting positioning cylinders 201, and the negative pressure pipe 202 is externally connected to a vacuum pump; the negative pressure pipe 202 is a three-way pipe, and the negative pressure pipe 202 communicates with the two pipe fitting positioning cylinders 201; magnetic attraction electromagnets 203 are respectively fixedly sleeved inside the two pipe fitting positioning cylinders 201; the inner ends of the two pipe fitting positioning cylinders 201 are respectively chamfered; by using the negative pressure outer support member 2, during the actual pipe fitting cutting work, the negative pressure generated by vacuum suction can be used to adsorb the outer wall of the pipe fitting for positioning, and the stability of the hose can be ensured during subsequent cutting, ensuring the cutting quality of this structure and keeping the pipe wall stable during circumferential cutting.

[0029] The guiding member 3 includes a guiding column 301 located at the inner through holes of two pipe fitting positioning cylinders 201; the outer side of the guiding column 301 is used for passing through the PE hose; an annular groove 3011 is provided in the middle of the guiding column 301; the annular groove 3011 is located between the two pipe fitting positioning cylinders 201; there is a gap between the outer side of the guiding column 301 and the inner side of the inner through hole of the pipe fitting positioning cylinder 201; the guiding member 3 further includes two built-in magnets 302 fixedly embedded in the inner side of the guiding column 301; two magnetic attraction electromagnets 203 are respectively aligned with the built-in magnets 302; the two magnetic attraction electromagnets 203 respectively magnetically attract the built-in magnets 302. By using the guiding member 3 in cooperation with the negative pressure outer support member 2, internal auxiliary support can be provided inside the hose, which can further improve the stability of this structure during actual hose cutting, improve the cutting accuracy. At the same time, the guiding member 3 adopted in this structure can support in real time inside the hose to ensure the perpendicularity of the hose to the cutting blade 504 during cutting, with higher cutting accuracy. Using magnetic positioning, the structure is more reasonable. The guiding member 3 can also play a role in guiding the hose. As the hose is cut off, the cut-off hose can be guided out by the guiding column 301, avoiding jamming at the end of the pipe fitting positioning cylinder 201 and affecting the conveying. The structure is simple, ensuring the continuity of cutting. The magnetic attraction electromagnet 203 magnetically attracts the built-in magnet 302 to ensure the accuracy of the position of the guiding column 301.

[0030] Such as Figures 2 to 9As shown, the rotation control member 4 includes a fixed ring 401 fixedly installed on the cutting mounting frame 101; a rotating ring 4011 is rotatably sleeved inside the fixed ring 401; a circle of meshing teeth is provided on the outer side of the rotating ring 4011, and the meshing teeth on the outer side of the rotating ring 4011 are meshed with the gear on the output shaft of the driving motor 102; the cutting part 5 includes a circumferential cutting swing arm 501 rotatably installed inside the rotating ring 4011; a reset magnet 5011 is fixedly installed at the end of the circumferential cutting swing arm 501, and the reset magnet 5011 is magnetically attracted and attached to the rotating ring 4011; a through groove is provided in the middle of the circumferential cutting swing arm 501; the circumferential cutting swing arm 501 is made of iron metal structure; a tool holder 502 is slidably inserted into the through groove in the middle of the circumferential cutting swing arm 501; two positioning bolts 503 are threadedly connected to the tool holder 502; two arc-shaped slot holes are provided on the side of the tool holder 502; a cutting blade 504 is inserted into the tool holder 502; the end parts of the two positioning bolts 503 respectively press and fit against the side of the cutting blade 504; the cutting blade 504 is located between the two pipe fitting positioning cylinders 201; the magnetic attraction traction member 6 includes a magnetic attraction swing arm 601 rotatably installed inside the rotating ring 4011; a cutting force increasing electromagnet 602 is fixedly sleeved at the end of the magnetic attraction swing arm 601; the cutting force increasing electromagnet 602 is aligned with the circumferential cutting swing arm 501; the cutting force increasing electromagnet 602 is used to magnetically attract the circumferential cutting swing arm 501 to press down; a V-shaped elastic piece 603 is installed at the bottom of the magnetic attraction swing arm 601; the V-shaped elastic piece 603 is used for elastic pressing; the bottom of the V-shaped elastic piece 603 is fixedly installed inside the rotating ring 4011; the elastic force of the V-shaped elastic piece 603 is much greater than the magnetic attraction force of the reset magnet 5011. By using the cutting part 5 in cooperation with the rotation control member 4, the hose can be quickly cut in a circumferential manner, avoiding extrusion damage when the cutting knife directly presses down to cut the pipe fitting, ensuring that the ellipticity of the end of the pipe fitting after cutting meets the standard, avoiding extrusion damage to the pipe fitting. At the same time, the magnetic attraction traction member 6 of this structure can utilize magnetic attraction to provide cutting pressure and achieve elastic pressing down. When there are problems such as notches on the cutting tool and it is difficult to press down and cut through the pipe fitting, elastic adaptation can be carried out to avoid direct breakage of the cutting tool. This structure uses circumferential cutting quickly and accurately. The rotating ring 4011 is driven to rotate by the gear on the output shaft of the driving motor 102, and the circumferential cutting swing arm 501 is magnetically attracted by the cutting force increasing electromagnet 602. At this time, the reset magnet 5011 on the circumferential cutting swing arm 501 and the rotating ring 4011 are separated from the fitting. At this time, the V-shaped elastic piece 603 performs elastic traction, and the cutting blade 504 can fit and press against the outer wall of the pipe fitting and cut circumferentially around it.

[0031] As Figures 9 to 11As shown, the multi-directional collapsing member 7 includes two positioning shells 701 fixedly installed on the circumferential cutting swing arm 501; two collapsing columns 702 are respectively slidably installed inside the two positioning shells 701; a spring is fixedly installed at the tail of the collapsing column 702, and the spring at the tail of the collapsing column 702 is located inside the positioning shell 701; the ends of the two collapsing columns 702 are respectively hemispherical structures; the ends of the two collapsing columns 702 are respectively inserted into two arc-shaped slot holes provided on the side of the tool holder 502; the insertion amount of the collapsing column 702 on the tool holder 502 is less than the radius of the hemispherical structure at the end of the collapsing column 702; the multi-directional collapsing member 7 further includes switches 703 respectively fixedly installed at the tails of the two positioning shells 701, and the two switches 703 are respectively electrically connected to the cutting force increasing electromagnet 602; the two switches 703 are respectively aligned with the tails of the two collapsing columns 702. The multi-directional collapsing member 7 can achieve multi-directional collapse. When the cutting blade 504 becomes dull or has a notch and cannot continue the cutting work, it can assist the cutting blade 504 to collapse, and can achieve multi-angle collapse, ensuring the protection effect, avoiding uneven cutting sections, burrs and a significant reduction in cutting speed caused by continuous downward pressure, and also facilitating the staff to promptly replace the cutting blade 504 after learning. At the same time, after the cutting blade 504 collapses, this structure can promptly control the cutting force increasing electromagnet 602 to cut off the power, avoiding continuous downward pressure and reducing damage. When the cutting blade 504 cannot cut through the hose in time, at this time, the cutting force increasing electromagnet 602 still continuously presses down the circumferential cutting swing arm 501, and the circumferential cutting swing arm 501 can drive the multi-directional collapsing member 7 to continuously press down. At this time, the extrusion force of the tool holder 502 on at least one collapsing column 702 increases, and the collapsing column 702 can retract. Correspondingly, when the collapsing column 702 retracts, it will also squeeze the switch 703. As long as one switch 703 is pressed, the cutting force increasing electromagnet 602 can be controlled to cut off the power.

[0032] The working principle provided by the present invention is as follows. First, the four slot holes opened on the cutting mounting frame 101 can be installed at positions such as the desktop of the operating table through bolts. Insert the PE hose into the guiding column 301 and manually push it forward. Guided by the guiding column 301 until the end of the hose moves into the fitting positioning cylinder 201 on the other side. Determine the distance to push the hose according to the cutting length. At this time, start the vacuum pump externally connected to the negative pressure pipe 202 to perform negative pressure suction. The hose can be positioned by negative pressure adsorption through the negative pressure grooves 2011 on the two fitting positioning cylinders 201. Drive the rotary ring 4011 to rotate by the gear engagement on the output shaft of the driving motor 102, and cooperate with the cutting force adding electromagnet 602 to magnetically attract the cutting swing arm 501. At this time, the reset magnet 5011 on the cutting swing arm 501 is separated from the fitting rotary ring 4011. At this time, the V-shaped elastic piece 603 performs elastic traction, and the cutting blade 504 can be attached to and extrude the outer wall of the fitting to perform circumferential cutting. As the fitting is cut off, the driving motor 102 can be controlled to stop rotating, and the cutting force adding electromagnet 602 is powered off. At this time, the reset magnet 5011 can magnetically attract and fit the rotary ring 4011, driving the cutting swing arm 501 to rotate upward and reset. At this time, the hose can continue to be pushed on the guiding column 301 to perform the next cutting operation. The cut-off fitting can gradually be pushed out from the side of the guiding column 301 in the direction of hose pushing. When there are nicks or poor sharpness during the cutting process when the cutting force adding electromagnet 602 presses down the cutting blade 504, the cutting resistance naturally increases. At this time, the magnetic attraction of the cutting force adding electromagnet 602 cooperates with the elastic downward pressure of the V-shaped elastic piece 603 to remain unchanged. When the corresponding cutting blade 504 cannot cut through the hose in time, at this time, the cutting force adding electromagnet 602 still continuously presses down the cutting swing arm 501, and the cutting swing arm 501 can drive the multi-directional collapsible member 7 to continuously press down. At this time, the extrusion force of the tool holder 502 on at least one collapsible column 702 increases, and the collapsible column 702 can retract. The spring at the tail of the collapsible column 702 can be compressed and no longer maintains the plug-in and positioning of the arc-shaped slot hole by driving the side of the tool holder 502. At this time, the plug-in tool holder 502 is no longer limited by the extrusion of the collapsible column 702, and naturally drives the cutting blade 504 to collapse, no longer applying a continuous large downward cutting force to the hose. Correspondingly, when the collapsible column 702 retracts, it will also squeeze the switch 703. As long as one switch 703 is pressed, the cutting force adding electromagnet 602 can be controlled to be powered off to stop the downward magnetic attraction and extrusion, avoiding continuous damage to the cutting section of the hose. At this time, the staff needs to replace the cutting blade 504 in time. After rotating and removing the positioning bolts 503, remove the old cutting blade 504, insert the new cutting blade 504 into the tool holder 502, and then tighten the two positioning bolts 503.

[0033] The present invention encompasses any alternatives, modifications, equivalent methods, and solutions that are made within the spirit and scope of the present invention. For the purpose of enabling the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention even without the description of these details. Additionally, well-known methods, processes, procedures, components, and circuits, etc. are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0034] The above description is only a preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements can be made without departing from the principle of the present invention, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A cutting device for PE pipe production, including a cutting drive member, and a negative pressure outer support member is installed on the cutting drive member, characterized in that, A guiding member is installed on the negative pressure outer support member, and the guiding member is used to guide the PE hose; the negative pressure outer support member is used to adsorb the PE hose by negative pressure; A rotation control member is installed on the cutting driving member; the rotation control member is used to control the rotation around the PE hose; A cutting part is installed inside the rotation control member; the cutting part is used to circumferentially cut the PE hose; a magnetic attraction traction member is installed inside the rotation control member; A multi-directional collapse member is installed on the cutting part; the multi-directional collapse member is used to prompt the cutting safety; The cutting driving member includes: a cutting mounting frame and a driving motor. The driving motor is fixedly installed on the cutting mounting frame, and a gear is fixedly installed on the output shaft of the driving motor; four slot holes are opened on the cutting mounting frame.

2. The cutting device for the production of PE pipes according to claim 1, characterized in that, The cutting driving member includes: a threaded connection cylinder, and two threaded connection cylinders are fixedly installed on the cutting mounting frame.

3. The cutting device for PE pipe production according to claim 2, wherein, The negative pressure outer support member includes two pipe fitting positioning cylinders respectively threadedly connected to the two threaded connection cylinders, and the two pipe fitting positioning cylinders are of a double-layer hollow structure; a negative pressure groove is provided in the middle of the two pipe fitting positioning cylinders; the tails of the two pipe fitting positioning cylinders are of a dodecagonal structure; the inner through holes of the two pipe fitting positioning cylinders are used to pass through the PE hose; the negative pressure groove is used to adsorb the PE hose; a negative pressure pipe is fixedly installed between the two pipe fitting positioning cylinders, and the negative pressure pipe is externally connected to a vacuum pump; the negative pressure pipe is a three-way pipe, and the negative pressure pipe communicates with the two pipe fitting positioning cylinders; magnetic attraction electromagnets are respectively fixedly sleeved inside the two pipe fitting positioning cylinders; the inner sides of the ends of the two pipe fitting positioning cylinders are respectively chamfered.

4. The cutting device for PE pipe production according to claim 3, characterized in that, The guiding member includes a guiding column located at the inner through holes of the two pipe fitting positioning cylinders; the outer side of the guiding column is used to pass through the PE hose; an annular groove is provided in the middle of the guiding column; the annular groove is located between the two pipe fitting positioning cylinders; there is a gap between the outer side of the guiding column and the inner side of the inner through hole of the pipe fitting positioning cylinder.

5. The cutting device for PE pipe production according to claim 4, wherein, The guiding member further includes two built-in magnets fixedly embedded inside the guiding column; the two magnetic attraction electromagnets are respectively aligned with the built-in magnets; the two magnetic attraction electromagnets respectively magnetically attract the built-in magnets.

6. The cutting device for PE pipe production according to claim 3, characterized in that, The rotation control member includes a fixed ring fixedly installed on the cutting mounting frame; a rotation ring is rotatably sleeved inside the fixed ring; a circle of meshing teeth is provided on the outer side of the rotation ring, and the meshing teeth on the outer side of the rotation ring mesh with the gear on the output shaft of the driving motor.

7. The cutting device for PE pipe production according to claim 6, wherein, The cutting part includes a circumferential cutting swing arm rotatably installed inside the rotation ring; a reset magnet is fixedly installed at the end of the circumferential cutting swing arm, and the reset magnet magnetically attracts and fits the rotation ring; a through groove is provided in the middle of the circumferential cutting swing arm; the circumferential cutting swing arm is made of iron metal structure; a tool holder is slidably inserted into the through groove in the middle of the circumferential cutting swing arm; two positioning bolts are threadedly connected to the tool holder; two arc-shaped slot holes are provided on the side of the tool holder; a cutting blade is inserted into the tool holder; the end parts of the two positioning bolts respectively press and fit the side of the cutting blade; the cutting blade is located between the two pipe fitting positioning cylinders.

8. The cutting device for PE pipe production according to claim 7, characterized in that, The magnetic attraction traction member includes a magnetic attraction swing arm rotatably installed inside the rotary ring; a cutting force adding electromagnet is fixedly sleeved at the end of the magnetic attraction swing arm; the cutting force adding electromagnet is aligned with the cutting ring swing arm; the cutting force adding electromagnet is used to magnetically attract the cutting ring swing arm to press down; a V-shaped elastic piece is installed at the bottom of the magnetic attraction swing arm; the V-shaped elastic piece is used for elastic pressing; the bottom of the V-shaped elastic piece is fixedly installed inside the rotary ring; the elastic force of the V-shaped elastic piece is much greater than the magnetic attraction of the reset magnet.

9. The cutting device for PE pipe production according to claim 7, characterized in that, The multi-directional collapse member includes two positioning shells fixedly installed on the cutting ring swing arm; collapse columns are respectively slidably installed inside the two positioning shells; springs are fixedly installed at the tails of the collapse columns, and the springs at the tails of the collapse columns are located inside the positioning shells; the ends of the two collapse columns are respectively hemispherical structures; the ends of the two collapse columns are respectively inserted into two arc-shaped slot holes provided on the side of the tool holder; the insertion amount of the collapse columns on the tool holder is less than the radius of the hemispherical structure at the end of the collapse columns.

10. The cutting device for PE pipe production according to claim 9, wherein, The multi-directional collapse member further includes switches respectively fixedly installed at the tails of the two positioning shells, and the two switches are respectively electrically connected to the cutting force adding electromagnet; the two switches are respectively aligned with the tails of the two collapse columns.

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