CN116277864A - Online straight cutting pipe equipment in advance of teflon - Google Patents

Online straight cutting pipe equipment in advance of teflon Download PDF

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Publication number
CN116277864A
CN116277864A CN202310049476.3A CN202310049476A CN116277864A CN 116277864 A CN116277864 A CN 116277864A CN 202310049476 A CN202310049476 A CN 202310049476A CN 116277864 A CN116277864 A CN 116277864A
Authority
CN
China
Prior art keywords
traction
pipe cutting
assembly
pipe
teflon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310049476.3A
Other languages
Chinese (zh)
Inventor
莫家培
熊宇翔
黄伟全
刘晓播
李可辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cyg Electronic Dongguan Co ltd
Original Assignee
Cyg Electronic Dongguan Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cyg Electronic Dongguan Co ltd filed Critical Cyg Electronic Dongguan Co ltd
Priority to CN202310049476.3A priority Critical patent/CN116277864A/en
Publication of CN116277864A publication Critical patent/CN116277864A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • B29C48/0022Combinations of extrusion moulding with other shaping operations combined with cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • B29C48/0021Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/355Conveyors for extruded articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/885External treatment, e.g. by using air rings for cooling tubular films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/903Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92323Location or phase of measurement
    • B29C2948/92438Conveying, transporting or storage of articles
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Sawing (AREA)

Abstract

The invention discloses an online pre-straight pipe cutting device for a teflon, which belongs to the technical field of machining and comprises a pre-detection pre-shaping mechanism, a cooling water tank mechanism, a water cooling machine, a traction pipe cutting mechanism and a discharging mechanism, wherein one side of the pre-detection pre-shaping mechanism is connected with the cooling water tank mechanism, the other side of the cooling water tank mechanism is connected with the traction pipe cutting mechanism, the other side of the traction pipe cutting mechanism is connected with the discharging mechanism, and the water cooling machine is arranged on the traction pipe cutting mechanism.

Description

Online straight cutting pipe equipment in advance of teflon
Technical Field
The invention relates to the technical field of machining, in particular to an online teflon pre-straight cutting device.
Background
The teflon sleeve, also called Polytetrafluoroethylene (PTFE) sleeve, during the push-forming process, the tubing falls freely into the frame from top to bottom, causing the product to fall into the frame and bend and pile. After bending and shaping, the product needs to be subjected to straight pipe operation, and needs to be reheated and shaped, so that the energy consumption and labor are increased, and the straightness is not ideal.
Disclosure of Invention
The invention aims to provide an online teflon pre-straight cutting pipe device so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a straight pipe cutting equipment in advance of teflon on line, includes leading detection preforming mechanism, cooling water tank mechanism, water-cooling machine, pulls pipe cutting mechanism and shedding mechanism, and cooling water tank mechanism is connected to one side of leading detection preforming mechanism, and traction pipe cutting mechanism is connected to cooling water tank mechanism's opposite side, and shedding mechanism is connected to traction pipe cutting mechanism's opposite side, and the water-cooling machine is installed on traction pipe cutting mechanism.
As a further technical scheme of the invention: the prepositive detection presetting mechanism mainly comprises an opposite detection matrix component, a traction guide wheel, a preset tube and a protective cover, wherein the opposite detection matrix component, the traction guide wheel and the preset tube are arranged on the prepositive frame.
As a further technical scheme of the invention: the cooling water tank mechanism comprises a cooling water tank arranged on a water tank support, a cooling shaping pipe is arranged in the cooling water tank, a water baffle plate and a water removal annular air knife are arranged at the tail part of the cooling water tank, the cooling water tank mechanism is connected with a water chiller through a water inlet pipe and a water outlet pipe, and a connecting beam is arranged and is respectively connected and fixed with a front-end pre-detection pre-shaping mechanism and a rear-end traction pipe cutting mechanism.
As a further technical scheme of the invention: the traction pipe cutting mechanism comprises: the front guide wheel, the traction assembly, the traction head detection assembly and the pipe cutting assembly are respectively placed on the frame control cabinet in sequence, and the touch screen control cabinet is arranged at the back end of the frame control cabinet.
As a further technical scheme of the invention: the pipe cutting assembly consists of a guide pipe, a cutter, a synchronous double-axis guide rail linear module and a cutter cylinder.
As a further technical scheme of the invention: the traction assembly consists of a synchronous belt, a stepping motor assembly, an encoder and a lower synchronous wheel assembly.
As a further technical scheme of the invention: the discharge mechanism includes: the conveying belt assembly is arranged on the discharging support, a pushing cylinder and a pushing rod are arranged on the conveying belt assembly, and a receiving groove is arranged at the back end of the conveying belt assembly.
As a further technical scheme of the invention: still including connecting to move the head, its both ends are positive and negative tooth self-tapping screw, and the middle through-hole is connected with the teflon tube at the head both ends that move to connect.
Compared with the prior art, the invention has the beneficial effects that:
1. the correlation detection matrix component can be used for detecting the falling speed of the teflon tube on line, automatically matching the traction speed and realizing stable traction.
2. The preshaping pipe preshapes and cools the Teflon pipe in the preshaping pipe to prevent the Teflon pipe from entering water at high temperature and causing cracks.
3. The cooling water tank mechanism and the water cooling machine are combined to rapidly perform temperature control cooling on the teflon tube, and holes are formed in the cooling shaping tube, so that the teflon tube can be fully contacted with water for cooling.
4. The synchronous belt on the traction assembly is provided with a groove, so that the contact area between the synchronous belt and the teflon tube is increased, the friction force is increased, the lower synchronous wheel assembly of the traction assembly is supported by a spring, and the excessive pressure can be avoided, so that the teflon tube is deformed by pressing.
5. The traction head detection component can detect the traction head, and automatically enters a metering and pipe cutting state after traction is completed.
6. The pipe cutting assembly can cut pipes at synchronous traction speed, so that the problem of uneven stress caused by pipe cutting when the pipe cutting assembly is stopped is avoided.
7. The discharging mechanism can push the materials into the receiving groove after the pipe cutting is completed.
8. The front and back teeth self-tapping screws are arranged at the two ends of the connecting movable head, so that the front and back pipes can be connected, the pipe penetrating operation of the machine is realized, the inconvenience of manually penetrating the pipe is avoided, and the problem of pipe deformation caused by hole blocking during hollow air suction of the teflon pipe can be prevented by the middle through hole.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic diagram of a pre-test pre-shaping mechanism;
FIG. 3 is a schematic diagram of a cooling water tank mechanism;
FIG. 4 is a schematic drawing of a pulling pipe cutter;
FIG. 5 is a schematic view of a discharge mechanism;
fig. 6 is a schematic diagram of a connection transition header.
In the figure: 1. a pre-detection pre-shaping mechanism; 2. a cooling water tank mechanism; 3. a water cooling machine; 4. traction pipe cutting mechanism; 5. a discharging mechanism; 6. an correlation detection matrix component; 7. traction guide wheels; 8. a pre-shaping pipe; 9. a protective cover; 10. a front frame; 11. cooling and shaping the pipe; 12. a water removal annular air knife; 13. a water tank bracket; 14. a water outlet pipe; 15. a connecting beam; 16. a water inlet pipe; 17. a cooling water tank; 18. a water baffle; 19. a traction head detection assembly; 20. a front guide wheel, a 21 and a pipe cutting assembly; 211. a guide tube; 212. a cutter; 213. a synchronous double-axle guide rail linear module; 214. a cutter cylinder; 22. a traction assembly; 221. a synchronous belt; 222. a stepper motor assembly; 223. an encoder; 224. a lower synchronizing wheel assembly 23 and a frame control cabinet; 24. a touch screen control box; 25. a receiving groove; 26. a pushing cylinder; 27. a pushing rod; 28. a discharging bracket; 29. a conveyor belt assembly; 30. connecting the transfer head; 31. a teflon tube.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment 1, as shown in fig. 1, an online straight-line pipe cutting equipment of teflon comprises a pre-detection pre-shaping mechanism 1, a cooling water tank mechanism 2, a water cooler 3, a traction pipe cutting mechanism 4 and a discharging mechanism 5, wherein one side of the pre-detection pre-shaping mechanism 1 is connected with the cooling water tank mechanism 2, the other side of the cooling water tank mechanism 2 is connected with the traction pipe cutting mechanism 4, the other side of the traction pipe cutting mechanism 4 is connected with the discharging mechanism 5, and the water cooler 3 is arranged on the traction pipe cutting mechanism 4.
Embodiment 2 based on embodiment 1, as shown in fig. 2, the pre-shaping mechanism 1 for pre-detection mainly includes a correlation detection matrix assembly 6, a traction guide wheel 7, a pre-shaping tube 8 and a protective cover 9 thereof, which are disposed on a pre-frame 10.
Embodiment 3, on the basis of embodiment 1, as shown in fig. 3, the cooling water tank mechanism 2 comprises a cooling water tank 17 arranged on a water tank bracket 13, a cooling shaping pipe 11 is arranged in the cooling water tank 17, a water baffle 18 and a water removal annular air knife 12 are arranged at the tail part, the cooling water tank mechanism is connected with the water chiller 3 through a water inlet pipe 16 and a water outlet pipe 14, and a connecting beam 15 is arranged and is respectively connected and fixed with a front detection pre-shaping mechanism 1 at the front end and a traction pipe cutting mechanism 4 at the rear end.
Embodiment 4 on the basis of embodiment 1, as shown in fig. 4, the pipe pulling and cutting mechanism 3 includes: the front guide wheel 20, the traction component 22, the traction head detection component 19 and the pipe cutting component 21 are respectively and sequentially arranged on the frame control cabinet 23, and the touch screen control box 24 is arranged at the back end of the frame control cabinet 23.
The pipe cutting assembly 21 consists of a guide pipe 211, a cutter 212, a synchronous double-axis guide rail linear module 213 and a cutter cylinder 214.
The traction assembly 22 is comprised of a timing belt 221, a stepper motor assembly 222, an encoder 223, and a lower synchronizing wheel assembly 224.
Embodiment 5 on the basis of embodiment 1, as shown in fig. 5, the discharging mechanism 5 includes: the conveyer belt assembly 29 is arranged on the unloading bracket 28, a pushing cylinder 26 and a pushing rod 27 are arranged on the conveyer belt assembly, and a receiving groove 25 is arranged at the back end of the conveyer belt assembly.
In example 6, on the basis of example 1, as shown in fig. 6, the device further comprises a connecting transfer head 30, wherein both ends of the connecting transfer head 30 are provided with positive and negative tooth self-tapping screws, a middle through hole is formed, and both ends of the connecting transfer head 30 are connected with teflon tubes 31.
The working principle is as follows:
the correlation detection matrix component 6 can detect the falling speed of the teflon tube on line, automatically match the traction speed and realize stable traction. The preshaping pipe 8 preshapes and cools the teflon pipe in the preshaping pipe to prevent the teflon pipe from entering water at high temperature and causing cracking. The cooling water tank mechanism 2 and the water cooler 3 are combined to rapidly perform temperature control cooling on the teflon tube, and holes are formed in the cooling shaping tube 11 to enable the teflon tube to be fully contacted with water for cooling. The synchronous belt 221 on the traction assembly 22 is provided with a groove, so that the contact area between the synchronous belt 221 and the teflon tube is increased, the friction force is increased, the lower synchronous wheel assembly 224 of the traction assembly 22 is supported by a spring, and the excessive pressure can be avoided, so that the teflon tube is deformed by pressing. The drawing head detecting component 19 can detect the drawing head 30, and automatically enters a meter counting and pipe cutting state after drawing is completed. The pipe cutting assembly 21 can cut pipes at synchronous traction speed, so that the problem of uneven stress caused by pipe cutting when the pipe cutting assembly is stopped is avoided. The discharge mechanism 5 can push the material into the receiving chute 25 after the tube cutting is completed. The front and back teeth self-tapping screws are arranged at the two ends of the connecting movable head 30, so that the front and back pipes can be connected, the pipe penetrating operation of the machine is realized, the inconvenience of manually penetrating the pipe is avoided, and the problem of pipe deformation caused by hole blocking during hollow air suction of the teflon pipe can be prevented by the middle through hole.
A teflon tube is preset in the machine, when the teflon tube starts to extrude and fall, the connection transfer head 30 is used for connecting the two teflon tubes, then the machine is started, the traction component 22 starts to rapidly drag the teflon tube into the machine, when the fallen teflon tube enters the middle of the correlation detection matrix component 6, PID control is triggered, and the traction component 22 starts to synchronize the falling speed of the teflon tube. The teflon tube is subjected to pre-forming cooling through a pre-forming tube 8; cooling by a cooling shaping pipe 11; dewatering through a dewatering annular air knife; when the connecting transfer head 30 passes through the traction head detection assembly 19, the device detects the position of the connecting transfer head 30 and enters normal pipe cutting operation according to preset time. The encoder 223 will detect the pulling speed, when reaching the preset pipe cutting length, the synchronous double-axle guide rail linear module 213 will move the cutter cylinder 214 to synchronize with the pulling speed, and cut the pipe; the cut pipe enters the conveyer belt assembly 29, and after the cut pipe reaches a preset position, the pushing cylinder 26 pushes the pushing rod 27 to push the cut pipe into the receiving groove 25. When extrusion is completed, the correlation detection matrix assembly 6 is triggered, the machine will stop working, and the teflon tube remaining in the machine is used for the next extruded pulling tube.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (8)

1. The utility model provides a straight pipe cutting equipment in advance of teflon on line, includes leading detection preforming mechanism, cooling water tank mechanism, water-cooling machine, pulls pipe cutting mechanism and shedding mechanism, its characterized in that, cooling water tank mechanism is connected to one side of leading detection preforming mechanism, and traction pipe cutting mechanism is connected to cooling water tank mechanism's opposite side, and shedding mechanism is connected to traction pipe cutting mechanism's opposite side, and the water-cooling machine is installed on traction pipe cutting mechanism.
2. The on-line teflon pre-straight cutting device as recited in claim 1, wherein the pre-detection pre-shaping mechanism comprises an opposite-emission detection matrix assembly, a traction guide wheel, a pre-shaping tube and a protective cover thereof, which are arranged on a pre-frame.
3. The on-line teflon pre-straight pipe cutting device according to claim 1, wherein the cooling water tank mechanism comprises a cooling water tank arranged on a water tank support, a cooling shaping pipe is arranged in the cooling water tank, a water baffle plate and a water removal annular air knife are arranged at the tail part of the cooling water tank, the cooling water tank is connected with a water chiller through a water inlet pipe and a water outlet pipe, and a connecting beam is arranged and is respectively connected and fixed with a front detection pre-shaping mechanism at the front end and a traction pipe cutting mechanism at the rear end.
4. The on-line teflon pre-straight pipe cutting device of claim 1, wherein the traction pipe cutting mechanism comprises: the front guide wheel, the traction assembly, the traction head detection assembly and the pipe cutting assembly are respectively placed on the frame control cabinet in sequence, and the touch screen control cabinet is arranged at the back end of the frame control cabinet.
5. The on-line teflon pre-straight pipe cutting device according to claim 4, wherein the pipe cutting assembly comprises a guide pipe, a cutter, a synchronous double-axis guide rail linear module and a cutter cylinder.
6. The apparatus of claim 4, wherein the traction assembly is comprised of a timing belt, a stepper motor assembly, an encoder, and a lower timing wheel assembly.
7. An on-line teflon pre-straight cutting device as in claim 1 wherein said discharge mechanism comprises: the conveying belt assembly is arranged on the discharging support, a pushing cylinder and a pushing rod are arranged on the conveying belt assembly, and a receiving groove is arranged at the back end of the conveying belt assembly.
8. The online teflon online pre-straight cutting pipe device according to claim 1, further comprising a connecting movable head, wherein the two ends of the connecting movable head are positive and negative tooth self-tapping screws, the middle through hole is formed, and the two ends of the connecting movable head are connected with teflon pipes.
CN202310049476.3A 2023-02-01 2023-02-01 Online straight cutting pipe equipment in advance of teflon Pending CN116277864A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310049476.3A CN116277864A (en) 2023-02-01 2023-02-01 Online straight cutting pipe equipment in advance of teflon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310049476.3A CN116277864A (en) 2023-02-01 2023-02-01 Online straight cutting pipe equipment in advance of teflon

Publications (1)

Publication Number Publication Date
CN116277864A true CN116277864A (en) 2023-06-23

Family

ID=86782440

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310049476.3A Pending CN116277864A (en) 2023-02-01 2023-02-01 Online straight cutting pipe equipment in advance of teflon

Country Status (1)

Country Link
CN (1) CN116277864A (en)

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