A cutting device for PE pipe production

Abstract

The present invention provides a cutting device for PE pipe production, which belongs to the technical field of PE pipe ring cutting. It comprises a cutting drive, a negative pressure external support member is installed on the cutting drive, a guide member is installed on the negative pressure external support member, and the guide member is used to guide the PE hose; the negative pressure external support member is used to negatively adsorb the PE hose; a rotation control member is installed on the cutting drive; the rotation control member is used to control rotation around the PE hose; a cutting part is installed on the inner side of the rotation control member; the cutting part is used to ring cut the PE hose. The present invention uses the negative pressure external support member to use the negative pressure generated by vacuum suction to adsorb the outer wall of the pipe for positioning, which can ensure the stability of the hose during subsequent cutting, and the guide member can provide real-time support inside the hose; so as to solve the problem that the existing cutting device for PE pipe production is not convenient for using negative pressure to position the hose to ensure the quality of ring cutting, and is not convenient for automatically performing multi-angle collapse protection.

Description

Technical Field

[0001] The present invention relates to the technical field of PE pipe ring cutting, in particular to a cutting device for PE pipe production. Background Art

[0002] PE pipes are thermoplastic plastic pipes made of polyethylene as the main raw material. They have a wide range of applications 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 fillings.

[0003] The current cutting device for PE pipe production usually directly presses down to cut the PE hose. During the downward pressure of the blade, the hose will be squeezed, causing the ovality of the cut pipe to exceed the standard. The soft physical properties of the hose make it difficult to cut around the circumference. It is not convenient to use negative pressure to position the hose to ensure the quality of the ring cutting. It is also not convenient to automatically position the internal support to control the verticality of the ring cutting. It is easy to cause the cutting head and tail to not intersect, and the cutting effect is poor. At the same time, the ring cutting tool wears out with use, and it is not convenient to automatically perform multi-angle collapse protection. The cross-section is not good when the knife is directly used for cutting, and it is easy to cause additional damage to the PE pipe due to the substandard sharpness of the tool. Therefore, the present application provides a cutting device for PE pipe production to meet the needs. 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 problem that the existing cutting device for PE pipe production is not convenient for using negative pressure positioning hose to ensure the quality of ring cutting and is not convenient for automatically performing multi-angle collapse protection.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A cutting device for PE pipe production includes a cutting drive member, a negative pressure external support member is installed on the cutting drive member, a guide member is installed on the negative pressure external support member, and the guide member is used to guide the PE hose; the negative pressure external support member is used to negatively adsorb the PE hose; a rotation control member is installed on the cutting drive member; the rotation control member is used to control rotation around the PE hose; a cutting part is installed on the inner side of the rotation control member; the cutting part is used to ring cut the PE hose; a magnetic traction member is installed on the inner side of the rotation control member; a multi-directional collapse member is installed on the cutting part; the multi-directional collapse member is used to prompt cutting safety; the cutting drive 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 slots are provided on the cutting mounting frame.

[0007] Optionally, the cutting drive member includes: a threaded connection cylinder, and two threaded connection cylinders are fixedly mounted on the cutting mounting frame.

[0008] Optionally, the negative pressure external support member includes two pipe positioning cylinders respectively threadedly connected to the two threaded connection cylinders, and the two pipe positioning cylinders are double-layer hollow structures; a circle of negative pressure grooves is provided in the middle of the two pipe positioning cylinders; the tails of the two pipe positioning cylinders are dodecagonal structures; the inner through holes of the two pipe positioning cylinders are used to pass through the PE hose; the negative pressure groove is used to adsorb the PE hose; a negative pressure tube is fixedly installed between the two pipe positioning cylinders, and the negative pressure tube is externally connected to a vacuum pump; the negative pressure tube is a three-way tube, and the negative pressure tube connects the two pipe positioning cylinders; the inside of the two pipe positioning cylinders are respectively fixedly sleeved with magnetic electromagnets; the inner sides of the ends of the two pipe positioning cylinders are respectively chamfered.

[0009] Optionally, the guide member includes a guide column located at the inner through holes of the two pipe positioning cylinders; the outer side of the guide column is used to pass the PE hose; an annular groove is provided in the middle of the guide column; the annular groove is located between the two pipe positioning cylinders; and a gap is provided between the outer side of the guide column and the inner side of the inner through hole of the pipe positioning cylinder.

[0010] Optionally, the guide member further includes two built-in magnets fixedly embedded in the inner side of the guide column; the two magnetic attraction electromagnets are respectively aligned with the built-in magnets; and the two magnetic attraction electromagnets magnetically attract the built-in magnets respectively.

[0011] Optionally, the rotation control component includes a fixed ring fixedly mounted on the cutting mounting frame; a rotating ring is rotatably sleeved on the inner side of the fixed ring; a circle of meshing teeth is provided on the outer side of the rotating ring, and the meshing teeth on the outer side of the rotating ring engage with the gear on the output shaft of the drive motor.

[0012] Optionally, the cutting part includes a circular cutting swing arm rotatably mounted on the inner side of a rotating ring; a reset magnet is fixedly mounted on the end of the circular cutting swing arm, and the reset magnet is magnetically attracted to the rotating ring; a through groove is provided in the middle of the circular cutting swing arm; the circular cutting swing arm is an iron metal structure; a tool holder is slidably inserted into the through groove in the middle of the circular cutting swing arm; two positioning bolts are threadedly connected to the tool holder; two arc-shaped slots are provided on the side of the tool holder; a cutting blade is inserted into the tool holder; the ends of the two positioning bolts are respectively squeezed to fit the side of the cutting blade; the cutting blade is located between two pipe positioning cylinders.

[0013] Optionally, the magnetic traction part includes a magnetic swing arm rotatably mounted on the inner side of the rotating ring; a cutting force electromagnet is fixedly sleeved on the end of the magnetic swing arm; the cutting force electromagnet is aligned with the ring cutting swing arm; the cutting force electromagnet is used to press down the magnetic ring cutting swing arm; a V-shaped spring clip is installed at the bottom of the magnetic swing arm; the V-shaped spring clip is used for elastic pressure; the bottom of the V-shaped spring clip is fixedly mounted on the inner side of the rotating ring; the elastic force of the V-shaped spring clip is much greater than the magnetic attraction force of the reset magnet.

[0014] Optionally, the multi-directional crush part includes two positioning shells fixedly mounted on the annular swing arm; a crush column is slidably mounted on the inner side of each of the two positioning shells; a spring is fixedly mounted at the tail of the crush column, and the spring at the tail of the crush column is located on the inner side of the positioning shell; the two ends of the crush column are hemispherical structures respectively; the two ends of the crush column are respectively inserted into two arc-shaped slots provided on the side of the tool holder; the insertion amount of the crush column on the tool holder is less than the radius of the hemispherical structure of the end of the crush column.

[0015] Optionally, the multi-directional crush component further includes switches fixedly mounted on the tails of the two positioning shells, and the two switches are electrically connected to the cutting force electromagnets respectively; the two switches are aligned with the tails of the two crush columns respectively.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting up a negative pressure external support member, the negative pressure generated by vacuum suction can be used to adsorb the outer wall of the pipe for positioning during the actual pipe cutting work, and the stability of the hose can be guaranteed during subsequent cutting. The guide member used can provide real-time support inside the hose to ensure the perpendicularity of the hose to the cutting blade when being cut, and the cutting accuracy is higher. The magnetic positioning is used, and the structure is more reasonable. The guide member can also play the role of guiding the hose. As the hose is cut, the guide column can be used to guide and discharge the cut hose to avoid getting stuck at the end of the pipe positioning cylinder.

[0018] By setting up a cutting part in conjunction with a rotary control part, rapid circular cutting and cutting of the hose can be achieved, avoiding extrusion damage when the cutter directly presses down to cut the pipe, ensuring that the ovality of the pipe end meets the standard after cutting, and avoiding extrusion damage to the pipe. At the same time, the magnetic traction part of this structure can use magnetic adsorption to provide cutting pressure and achieve elastic downward pressure, avoiding problems such as notches in the tool and making it difficult to press down to cut through the pipe. It can be elastically adapted to avoid direct breakage of the tool.

[0019] By setting up a multi-directional collapse part, multi-directional collapse can be achieved. When the cutting blade is stuck or notched, making it impossible to continue cutting, the cutting blade can be assisted to collapse, and multi-angle collapse can be achieved to ensure the protection effect, avoid the problem of uneven cutting section, burrs and significantly reduced cutting speed caused by continuous downward pressure, and it is also convenient for the staff to replace the cutting blade after timely notification. At the same time, after cutting the blade, this structure can promptly control the power off of the cutting force electromagnet to avoid continuous downward pressure and reduce damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a cutting device for PE pipe production;

[0022] Figure 2 This is a schematic diagram of the rear structure of the cutting device for PE pipe production;

[0023] Figure 3 This is a schematic diagram of the installation position of the magnetic traction component;

[0024] Figure 4 It is a schematic diagram of the three-dimensional enlarged structure of the cutting drive component;

[0025] Figure 5 This is a schematic diagram of the three-dimensional enlarged structure of the negative pressure external support member;

[0026] Figure 6 It is a schematic diagram of the three-dimensional enlarged structure of the guide member;

[0027] Figure 7 This is a schematic diagram of the location of the negative pressure tank;

[0028] Figure 8 It is a schematic diagram of the three-dimensional enlarged structure of the rotary control component;

[0029] Figure 9 It is a schematic diagram of the three-dimensional enlarged structure of the cutting part;

[0030] Figure 10 It is a schematic diagram of the three-dimensional enlarged structure of the multi-directional collapse component;

[0031] Figure 11 This is a cross-sectional view of the collapse column structure.

[0032] Reference numerals

[0033] 1. Cutting drive component; 101. Cutting mounting frame; 102. Driving motor; 103. Threaded connecting tube; 2. Negative pressure external support component; 201. Pipe positioning tube; 2011. Negative pressure groove; 202. Negative pressure tube; 203. Magnetic electromagnet; 3. Guide component; 301. Guide column; 3011. Annular groove; 302. Built-in magnet; 4. Rotation control component; 401. Fixed ring; 4011. Rotating ring; 5. Cutting part; 501. Annular cutting swing arm; 5011. Reset magnet; 502. Tool holder; 503. Positioning bolt; 504. Cutting blade; 6. Magnetic traction component; 601. Magnetic swing arm; 602. Cutting force electromagnet; 603. V-shaped spring; 7. Multi-directional collapse component; 701. Positioning shell; 702. Collapse column; 703. Switch.

[0034] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0035] The following describes in detail a PE pipe cutting device provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known techniques. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0036] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0037] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0038] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0039] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0040] like Figures 1 to 11 As shown, an embodiment of the present invention provides a cutting device for PE pipe production, including a cutting drive 1, a negative pressure external support 2 is installed on the cutting drive 1, and a guide 3 is installed on the negative pressure external support 2, the guide 3 is used to guide the PE hose; the negative pressure external support 2 is used to negatively adsorb the PE hose; a rotation control part 4 is installed on the cutting drive 1; the rotation control part 4 is used to control the rotation around the PE hose; a cutting part 5 is installed on the inner side of the rotation control part 4; the cutting part 5 is used to ring cut the PE hose; a magnetic traction part 6 is installed on the inner side of the rotation control part 4; a multi-directional collapse part 7 is installed on the cutting part 5; the multi-directional collapse part 7 is used to prompt cutting safety; the cutting drive 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 slots are opened on the cutting mounting frame 101.

[0041] like Figures 4 to 7 As shown, the cutting drive member 1 includes: a threaded connection cylinder 103, two threaded connection cylinders 103 are fixedly installed on the cutting mounting frame 101; the negative pressure external support member 2 includes two pipe positioning cylinders 201 respectively threadedly connected to the two threaded connection cylinders 103, and the two pipe positioning cylinders 201 are double-layer hollow structures; a circle of negative pressure grooves 2011 are provided in the middle of the two pipe positioning cylinders 201; the tails of the two pipe positioning cylinders 201 are dodecagonal structures; the inner through holes of the two pipe positioning cylinders 201 are used to pass through the PE hose; the negative pressure groove 2011 is used to adsorb the PE hose; the two pipe positioning cylinders 2 01, and the negative pressure tube 202 is externally connected to a vacuum pump; the negative pressure tube 202 is a three-way tube, and the negative pressure tube 202 is connected to the two pipe positioning cylinders 201; the two pipe positioning cylinders 201 are respectively fixedly sleeved with magnetic electromagnets 203; the inner sides of the ends of the two pipe positioning cylinders 201 are respectively chamfered; the use of the negative pressure external support member 2 can be used in the actual pipe cutting work, and the negative pressure generated by vacuum suction can be used to adsorb the outer wall of the pipe for positioning, so that the stability of the hose can be guaranteed during subsequent cutting, the cutting quality of this structure can be guaranteed, and the pipe wall can be kept stable during ring cutting.

[0042] The guide member 3 includes a guide post 301 located at the inner through-holes of the two pipe positioning cylinders 201; the outer side of the guide post 301 is used to pass the PE hose; an annular groove 3011 is provided in the middle of the guide post 301; the annular groove 3011 is located between the two pipe positioning cylinders 201; a gap is provided between the outer side of the guide post 301 and the inner side of the inner through-holes of the pipe positioning cylinder 201; the guide member 3 also includes two built-in magnets 302 fixedly embedded in the inner side of the guide post 301; two magnetic electromagnets 203 are respectively aligned with the built-in magnets 302; the two magnetic electromagnets 203 respectively magnetically attract the built-in magnets 302, and the guide member 3 is used in conjunction with the negative pressure external support member 2 to assist in supporting the inner side of the hose. The support can further improve the stability of the present structure during actual hose cutting and improve the cutting accuracy. At the same time, the guide 3 adopted in the present structure can provide real-time support inside the hose to ensure that the hose is perpendicular to the cutting blade 504 when being cut, and the cutting accuracy is higher. The magnetic positioning is used, and the structure is more reasonable. The guide 3 can also play the role of guiding the hose. As the hose is cut, the guide column 301 can be used to guide the cut hose out to avoid being stuck at the end of the pipe positioning cylinder 201, which affects the transportation. The structure is simple and ensures the continuity of the cutting. The magnetic electromagnet 203 magnetically attracts the built-in magnet 302 to ensure the position accuracy of the guide column 301.

[0043] like Figures 2 to 9As shown, the rotation control member 4 includes a fixed ring 401 fixedly mounted on the cutting mounting frame 101; a rotating ring 4011 is rotatably sleeved on the inner side of 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 mesh with the gear on the output shaft of the driving motor 102; the cutting part 5 includes a ring cutting swing arm 501 rotatably mounted on the inner side of the rotating ring 4011; a reset magnet 5011 is fixedly mounted on the end of the ring cutting swing arm 501, and the reset magnet 5011 is magnetically attached to the rotating ring 4011; a through groove is provided in the middle of the ring cutting swing arm 501; the ring cutting swing arm 501 is Iron metal structure; a knife holder 502 is slidably inserted into the through slot in the middle of the circular cutting swing arm 501; two positioning bolts 503 are threadedly connected to the knife holder 502; two arc-shaped slots are provided on the side of the knife holder 502; a cutting blade 504 is inserted into the knife holder 502; the ends of the two positioning bolts 503 are pressed and fitted against the sides of the cutting blade 504; the cutting blade 504 is located between the two pipe positioning cylinders 201; the magnetic traction member 6 includes a magnetic swing arm 601 rotatably mounted on the inner side of the rotating ring 4011; a cutting force electromagnet 602 is fixedly sleeved on the end of the magnetic swing arm 601; the cutting force electromagnet 602 Align the circular cutting swing arm 501; the cutting force electromagnet 602 is used to press the magnetic circular cutting swing arm 501 downward; a V-shaped spring piece 603 is installed at the bottom of the magnetic attraction swing arm 601; the V-shaped spring piece 603 is used for elastic pressure; the bottom of the V-shaped spring piece 603 is fixedly installed on the inner side of the rotating ring 4011; the elastic force of the V-shaped spring piece 603 is much greater than the magnetic attraction force of the reset magnet 5011, and the cutting part 5 is used in conjunction with the rotating control part 4 to achieve rapid circular cutting of the hose, avoiding extrusion damage caused by the cutter directly pressing down to cut the pipe, ensuring that the ovality of the pipe end after cutting meets the standard, avoiding extrusion damage to the pipe, and at the same time, the magnetic attraction traction part of this structure 6 can use magnetic adsorption to provide cutting pressure and achieve elastic downward pressure to avoid problems such as notches in the tool and it is difficult to press down and cut through the pipe. Elastic adaptation can be performed to avoid direct breakage of the tool. This structure uses circular cutting to be fast and accurate. The gear engagement on the output shaft of the drive motor 102 drives the rotary ring 4011 to rotate, and cooperates with the cutting force electromagnet 602 to magnetically attract the circular cutting swing arm 501. At this time, the reset magnet 5011 on the circular cutting swing arm 501 is separated from the fitting rotary ring 4011. At this time, the V-shaped spring piece 603 performs elastic pulling, and the cutting blade 504 can fit the outer wall of the extruded pipe and perform circular cutting around it.

[0044] like Figures 9 to 112 and 3. As shown in FIG, the multi-directional crushing member 7 comprises two positioning shells 701 fixedly mounted on the ring cutting swing arm 501; crushing columns 702 are slidably mounted on the inner sides of the two positioning shells 701; a spring is fixedly mounted on the tail of the crushing column 702, and the spring at the tail of the crushing column 702 is located on the inner side of the positioning shell 701; the ends of the two crushing columns 702 are respectively hemispherical structures; the ends of the two crushing columns 702 are respectively inserted into the two arc-shaped slots provided on the side of the tool holder 502; the insertion amount of the crushing column 702 on the tool holder 502 is less than the radius of the hemispherical structure of the end of the crushing column 702; the multi-directional crushing member 7 also includes switches 703 fixedly mounted on the tails of the two positioning shells 701, and the two switches 703 are respectively electrically connected to the cutting force electromagnet 602; the two switches 703 are respectively aligned with the tails of the two crushing columns 702. The use of the multi-directional crushing member 7 can achieve multi-directional crushing. When the cutting blade 504 is stuck or a gap appears, When the cutting work cannot be continued, the cutting blade 504 can be assisted to collapse, and collapse at multiple angles can be achieved to ensure the protection effect, avoid the problem of uneven cutting section, burrs and significantly reduced cutting speed caused by continuous downward pressure, and it is also convenient for the staff to replace the cutting blade 504 in time after being informed. At the same time, after the cutting blade 504 collapses, the present structure can timely control the cutting force electromagnet 602 to cut off the power, avoid continuous downward pressure, and reduce damage. When the cutting blade 504 cannot cut through the hose in time, the cutting force electromagnet 602 continues to press down the ring cutting swing arm 501, and the ring cutting swing arm 501 can drive the multi-directional collapse part 7 to continue to press down. At this time, the extrusion force of the tool holder 502 on at least one collapse column 702 increases, and the collapse column 702 can retract. Correspondingly, when the collapse column 702 retracts, it will also squeeze the switch 703. As long as one switch 703 is pressed, the cutting force electromagnet 602 can be controlled to cut off the power.

[0045] The working principle provided by the present invention is that the four slots opened on the cutting mounting frame 101 can be installed at a position such as the operating table through bolts, the PE hose is inserted into the guide column 301, and manually pushed forward, guided by the guide column 301 until the end of the hose moves to the pipe positioning cylinder 201 on the other side, and the distance of pushing the hose is judged according to the cutting length. At this time, the vacuum pump connected to the negative pressure pipe 202 can be started to start negative pressure suction, and the negative pressure adsorption hose can be positioned through the negative pressure grooves 2011 on the two pipe positioning cylinders 201. The gear on the output shaft of the driving motor 102 is engaged to drive the slewing ring 4011 to rotate, and the cutting force is matched. The electromagnet 602 magnetically attracts the circular cutting swing arm 501. At this time, the reset magnet 5011 on the circular cutting swing arm 501 is separated from the fitting rotary ring 4011. At this time, the V-shaped spring piece 603 performs elastic pulling, and the cutting blade 504 can fit the outer wall of the extruded pipe and cut around it. As the pipe is cut, the drive motor 102 can be controlled to stop, and the cutting force electromagnet 602 is powered off. At this time, the reset magnet 5011 can be magnetically attracted to fit the rotary ring 4011, driving the circular cutting swing arm 501 to rotate upward and reset. At this time, the hose can continue to be pushed on the guide column 301 to perform the next cutting work. The cut pipe can be gradually removed from the guide column 301 in the direction of the hose pushing. When the cutting blade 504 is pushed out from one side and a notch or poor sharpness occurs during cutting by the cutting force electromagnet 602 pressing down the cutting blade 504, the cutting resistance naturally increases. At this time, the cutting force electromagnet 602 magnetically attracts and cooperates with the V-shaped spring piece 603 to elastically press down the same pressure. When the corresponding cutting blade 504 cannot cut through the hose in time, the cutting force electromagnet 602 continues to press down the circular cutting swing arm 501. The circular cutting swing arm 501 can drive the multi-directional collapse part 7 to continue to press down. At this time, the extrusion force of the tool holder 502 on at least one collapse column 702 increases, and the collapse column 702 can retract. The spring at the tail of the collapse column 702 can be compressed, and the arc driven by the side of the plug-in tool holder 502 is no longer maintained. shaped slot hole positioning, at this time the plug-in knife holder 502 is no longer squeezed and limited by the collapse column 702, which naturally drives the cutting blade 504 to collapse, and no longer exerts a continuous large downward cutting force on the hose. Correspondingly, when the collapse column 702 retracts, it will also squeeze the switch 703. As long as one switch 703 is pressed, the cutting force electromagnet 602 can be controlled to cut off the power, stop the downward magnetic suction and extrusion, and avoid continuous damage to the cut section of the hose. At this time, the staff needs to replace the cutting blade 504 in time, rotate and disassemble the positioning bolt 503, remove the old cutting blade 504, insert the new cutting blade 504 into the knife holder 502, and then tighten the two positioning bolts 503.

[0046] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A cutting device for PE pipe production, comprising a cutting drive member, on which a negative pressure external support member is installed, characterized in that: A guide is installed on the negative pressure outer support member, and the guide is used to guide the PE hose; the negative pressure outer support member is used to negatively absorb the PE hose; A rotation control member is installed on the cutting drive member; the rotation control member is used to control the rotation around the PE hose; A cutting part is installed inside the rotation control part; the cutting part is used to cut the PE hose; a magnetic traction part is installed inside the rotation control part; A multi-directional collapse member is installed on the cutting portion; the multi-directional collapse member is used to indicate cutting safety; The cutting drive member includes: a cutting mounting frame and a driving motor, wherein the driving motor is fixedly mounted on the cutting mounting frame, and a gear is fixedly mounted on the output shaft of the driving motor; the cutting mounting frame is provided with four slots; The cutting drive member includes: a threaded connection cylinder, two threaded connection cylinders are fixedly mounted on the cutting mounting frame; The negative pressure external support member includes two pipe positioning cylinders respectively threadedly connected to the two threaded connection cylinders, and the two pipe positioning cylinders are double-layer hollow structures; a circle of negative pressure grooves is provided in the middle of the two pipe positioning cylinders; the tails of the two pipe positioning cylinders are dodecagonal structures; the inner through holes of the two pipe 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 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 connects the two pipe positioning cylinders; the inside of the two pipe positioning cylinders is respectively fixedly sleeved with a magnetic attraction electromagnet; the inner sides of the ends of the two pipe positioning cylinders are chamfered respectively; The guide member includes a guide post located at the inner through-holes of the two pipe positioning cylinders; the outer side of the guide post is used to pass the PE hose; an annular groove is provided in the middle of the guide post; the annular groove is located between the two pipe positioning cylinders; and a gap is provided between the outer side of the guide post and the inner side of the inner through-holes of the pipe positioning cylinders; The guide member further includes two built-in magnets fixedly embedded in the inner side of the guide 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; The rotation control member includes a fixed ring fixedly mounted on the cutting mounting frame; a slewing ring is rotatably sleeved on the inner side of the fixed ring; a circle of meshing teeth is provided on the outer side of the slewing ring, and the meshing teeth on the outer side of the slewing ring mesh with the gear on the output shaft of the drive motor; The cutting part includes a circular cutting swing arm rotatably mounted on the inner side of the rotary ring; a reset magnet is fixedly mounted on the end of the circular cutting swing arm, and the reset magnet is magnetically attached to the rotary ring; a through slot is provided in the middle of the circular cutting swing arm; the circular cutting swing arm is an iron metal structure; a tool holder is slidably inserted into the through slot in the middle of the circular cutting swing arm; two positioning bolts are threadedly connected to the tool holder; two arc-shaped slots are provided on the side of the tool holder; a cutting blade is inserted into the tool holder; the ends of the two positioning bolts are respectively pressed and attached to the side of the cutting blade; the cutting blade is located between the two pipe positioning cylinders; The magnetic attraction traction member includes a magnetic attraction swing arm rotatably mounted on the inner side of the slewing ring; a cutting force electromagnet is fixedly sleeved on the end of the magnetic attraction swing arm; the cutting force electromagnet is aligned with the ring cutting swing arm; the cutting force electromagnet is used to press the magnetic ring cutting swing arm downward; a V-shaped spring clip is mounted on the bottom of the magnetic attraction swing arm; the V-shaped spring clip is used to elastically apply pressure; the bottom of the V-shaped spring clip is fixedly mounted on the inner side of the slewing ring; the elastic force of the V-shaped spring clip is much greater than the magnetic attraction force of the reset magnet; The multi-directional crush part includes two positioning shells fixedly mounted on the annular swing arm; a crush column is slidably mounted on the inner side of each of the two positioning shells; a spring is fixedly mounted at the tail of the crush column, and the spring at the tail of the crush column is located on the inner side of the positioning shell; the two ends of the crush column are respectively hemispherical structures; the two ends of the crush column are respectively inserted into two arc-shaped slots provided on the side of the tool holder; the insertion amount of the crush column on the tool holder is less than the radius of the hemispherical structure of the end of the crush column.

2. The cutting device for PE pipe production according to claim 1, characterized in that: The multi-directional crushing member further includes switches fixedly mounted on the tails of the two positioning shells, and the two switches are electrically connected to the cutting force electromagnets respectively; the two switches are aligned with the tails of the two crushing columns respectively.

Images