A pipe flaring machine and method of use thereof
By introducing a material guiding and guiding device into the pipe flaring machine, and using a servo motor to drive the synchronous pulley and transmission screw to achieve automated feeding and guiding, combined with thermoplastic flaring molds for automated shaping and unloading, the problem of low automation in existing technologies is solved, and flaring efficiency is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU DINGYI ELECTRIC TECH CO LTD
- Filing Date
- 2023-09-07
- Publication Date
- 2026-05-08
AI Technical Summary
Existing pipe flaring machines are inefficient in terms of automated feeding and guiding operations, resulting in reduced flaring efficiency.
A pipe flaring machine was designed, which includes a material guiding device and a guide device. It uses a servo motor to drive a synchronous pulley and a transmission screw to realize the automated feeding and guiding of pipes, and uses a thermoplastic flaring mold for automated shaping and unloading.
The automation level of the pipe flaring machine has been improved, ensuring the stability and accuracy of the pipe during the flaring process and increasing flaring efficiency.
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Figure CN117183305B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of flaring machine equipment technology, specifically to a pipe flaring machine and its usage method. Background Technology
[0002] Pipe flaring machines can expand the openings of various pipes, thereby facilitating rapid connection and assembly of the pipes and effectively improving the convenience of pipe connection.
[0003] For example, the utility model patent disclosed in publication number CN214164008U, a pipe flaring machine, mainly relates to the field of PVC pipe processing. A pipe flaring machine includes a frame, a clamping frame at the top of the frame, an outer cylinder at one end of the frame, a heating device on the outer cylinder, a pushing frame near the outer cylinder, a sliding frame slidably mounted on the pushing frame, a flaring head rotatably mounted on the sliding frame, the flaring head being coaxial with the outer cylinder, a drive motor for driving the flaring head to rotate on one side of the sliding frame, and a hydraulic cylinder at the tail end of the pushing frame, the piston rod of the hydraulic cylinder being connected to the sliding frame. The beneficial effect of this utility model is that it can uniformly heat the pipe end while flaring, resulting in better flaring quality.
[0004] Although the above-mentioned equipment can perform flaring operations, it is not convenient for automated feeding and guiding of pipes, which reduces the efficiency of the equipment in flaring pipes. Therefore, a pipe flaring machine and its usage method are needed to solve the problems mentioned above. Summary of the Invention
[0005] The purpose of this invention is to provide a pipe flaring machine and its usage method to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a pipe flaring machine and its method of use, comprising a support base for support, two sets of profile support columns symmetrically arranged near the middle of the upper end face of the support base, a support plate fixedly arranged on the upper end face of the two sets of profile support columns, a material feeding bin fixedly arranged on the inner end face of the two sets of support plates, a material guiding opening opened at the middle of the upper end face of the support base, and a material guiding baffle symmetrically arranged on the upper end face of the support base with the material guiding opening as the center, a flaring device for flaring fixedly arranged near the rear of the upper end face of the support base, and a guide device for transmission fixedly arranged near the front of the upper end face of the support base, and a material feeding device arranged on the upper end face of the guide device.
[0007] Preferably, the material guiding device includes a positioning plate for support. Threaded guide seats are symmetrically arranged near the center of the lower end face of the positioning plate, and ball bearing slides are symmetrically arranged near the outer side of the lower end face of the positioning plate. A fixed slide cylinder is fixedly arranged at the center of the upper end face of the positioning plate. A limit groove is formed inside the fixed slide cylinder, and positioning chamfers are symmetrically formed at the opening of the outer end face of the fixed slide cylinder. A positioning cylinder is fixedly arranged at the center of the rear end face of the fixed slide cylinder, and a connecting push plate is fixedly arranged at the center of the front end face of the positioning cylinder. A material guiding baffle is fixedly arranged at the top of the rear end face of the fixed slide cylinder.
[0008] Preferably, the guiding device includes a limiting bracket for support, with symmetrically arranged profile pads for guidance on the inner end face of the limiting bracket. Guide rails are provided on the upper end faces of both sets of profile pads. Fixed brackets are provided on the inner end faces of both sets of profile pads and guide rails. Synchronous pulleys are symmetrically and rotatably engaged on the inner end face of the limiting bracket. Transmission screws are fixedly provided on the inner end faces of both sets of synchronous pulleys. The two sets of synchronous pulleys are meshed and connected by a synchronous belt. A servo motor is fixedly provided on the rear end face of the limiting bracket, directly opposite one of the transmission screws.
[0009] Preferably, the flaring device includes a connecting base for support, a thermoplastic flaring mold for shaping is fixedly disposed on the upper end face of the connecting base, and six sets of fixed guide grooves are equidistantly provided on the inner end face of the thermoplastic flaring mold, a fixed clamping plate is fixedly disposed on the inner end face of the thermoplastic flaring mold near the rear, a guide slide shaft is slidably engaged on the inner end face of the fixed clamping plate, a first spring retainer is disposed on the rear end face of the guide slide shaft, a second spring is disposed on the front end face of the guide slide shaft, a connecting push plate is fixedly disposed at the end of the front end face of the guide slide shaft, and a guide sleeve for limiting is fixedly disposed on the outer end face of the thermoplastic flaring mold.
[0010] Preferably, the bottom of the feeding hopper is provided with a material guiding groove, and the material guiding groove extends to the bottom of the feeding hopper. The fixed slide cylinder is slidably engaged inside the feeding hopper through the material guiding groove. The limiting groove is coaxial with the feeding hopper, which facilitates the subsequent rapid and stable positioning and guidance of the pipe.
[0011] Preferably, the threaded guide seat is adapted to the transmission screw, the ball bearing slide is adapted to the guide rail, and the material guiding device is slidably engaged with the upper end face of the profile pad by the threaded guide seat being adapted to the transmission screw and the ball bearing slide being adapted to the guide rail, which can effectively improve the stability and accuracy of the material guiding device in driving the pipe to move.
[0012] Preferably, the first spring retainer and the second spring are both fixedly connected to the fixed plate. The connecting push plate is slidably engaged inside the thermoplastic flaring mold through the fixed guide groove. The first spring retainer and the second spring can provide sufficient elastic force for the guide slide shaft to reset, which facilitates the subsequent automatic driving of the connecting push plate to push the shaped pipe.
[0013] A method for using a pipe flaring machine includes the following steps:
[0014] S1: For pipe storage, multiple sets of pipes that need to be shaped can be introduced into the interior of the feeding hopper to complete the storage operation;
[0015] S2: Limiting the pipe material. The servo motor can drive two sets of synchronous pulleys to rotate synchronously through the synchronous pulley and the synchronous belt. The two sets of synchronous pulleys can be connected to the threaded guide seat through the transmission screw, thereby synchronously driving the fixed slide to circulate back and forth displacement in the lower part of the feeding bin. When the guiding device moves forward in the initial position, the positioning chamfer inside the fixed slide can limit the pipe material.
[0016] S3: Guide and shape the pipe. The entire material guiding device moves towards the position of the flaring device under the drive of the guiding device until the front opening of the pipe is positioned outside the thermoplastic flaring mold. The thermoplastic flaring mold thermoplasticizes the opening of the pipe through thermoplastic shaping.
[0017] S4: The pipe is fed into the guide device, which drives the guide device to move backward. At the same time, the connecting push plate pushes the pipe out under the elastic push of the first spring retainer and the second spring. At this time, the positioning cylinder pushes the pipe out together through the connecting push plate, so that the pipe falls through the guide opening under the guidance of the guide baffle.
[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0019] 1. This invention, by setting up a material guiding device and a guide device, enables automated feeding and guiding of pipes. The servo motor can synchronously drive two sets of synchronous pulleys and transmission screws to rotate via synchronous pulleys and synchronous belts. The two sets of transmission screws can synchronously drive the fixed slide cylinder to circulate back and forth in the lower part of the feeding bin via threaded guide seats. This allows the fixed slide cylinder to limit the pipe through the limiting slot and guide the material. After the positioning cylinder completes the shaping, it can automatically export the pipe through the connecting push plate, effectively improving the automation level of the equipment in processing pipes.
[0020] 2. By setting up a flaring device, the thermoplastic flaring mold rapidly shapes the pipe through a conical inclined surface during the automated shaping and unloading of the pipe. At the same time, the guide sleeve can provide all-round protection for the shaped pipe, and the connecting push plate can push the shaped pipe, so that the shaped pipe can be automatically unloaded and unloaded, thereby improving the automation level of the equipment in processing pipes. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is an exploded view of the main body of the present invention;
[0023] Figure 2 This is a schematic diagram of the main body of the present invention;
[0024] Figure 3 This is an exploded view of the material guiding device of the present invention;
[0025] Figure 4 This is a schematic diagram of the material guiding device of the present invention;
[0026] Figure 5 This is an exploded view of the guiding device of the present invention;
[0027] Figure 6 This is a schematic diagram of the guiding device of the present invention;
[0028] Figure 7 This is an exploded view of the flaring device of the present invention;
[0029] Figure 8 This is a schematic diagram of the flaring device of the present invention.
[0030] In the diagram: 1-Profile support column, 2-Guiding device, 3-Guiding device, 4-Support base, 5-Braving device, 6-Discharge bin body, 7-Supporting plate, 8-Guiding opening, 9-Guiding baffle, 21-Positioning chamfer, 22-Fixed slide, 23-Connecting push plate, 24-Positioning cylinder, 25-Limiting slot, 26-Positioning plate, 27-Ball slide, 28-Threaded guide seat, 29-Guiding baffle, 31-Synchronous pulley, 32-Limiting seat, 33-Servo motor, 34-Synchronous belt, 35-Profile pad, 36-Guide slide rail, 37-Fixed seat, 38-Transmission screw, 51-First spring retainer, 52-Guiding slide shaft, 53-Fixed plate, 54-Guiding sleeve, 55-Connecting push plate, 56-Second spring, 57-Thermoplastic flaring mold, 58-Fixed guide groove, 59-Connecting base. Detailed Implementation
[0031] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0033] The invention will be further described below with reference to the accompanying drawings. Example
[0034] Please see Figure 1-8An embodiment of the present invention provides a pipe flaring machine and its usage method, comprising a support base 4 for support, two sets of profile support columns 1 symmetrically arranged near the middle of the upper end surface of the support base 4, a support plate 7 fixedly arranged on the upper end surface of the two sets of profile support columns 1, a material feeding bin 6 fixedly arranged on the inner end surface of the two sets of support plate 7, a material guiding opening 8 opened at the middle of the upper end surface of the support base 4, and a material guiding baffle 9 symmetrically arranged on the upper end surface of the support base 4 with the material guiding opening 8 as the center, a flaring device 5 for flaring fixedly arranged near the rear of the upper end surface of the support base 4, and a guide device 3 for transmission fixedly arranged near the front of the upper end surface of the support base 4, and a material guiding device 2 for feeding arranged on the upper end surface of the guide device 3.
[0035] The material guiding device 2 includes a positioning plate 26 for support. Threaded guide seats 28 are symmetrically arranged near the middle of the lower end face of the positioning plate 26, and ball bearing slides 27 are symmetrically arranged near the outer side of the lower end face of the positioning plate 26. A fixed slide cylinder 22 is fixedly arranged at the center of the upper end face of the positioning plate 26. A limit groove 25 is opened inside the fixed slide cylinder 22, and a positioning chamfer 21 is symmetrically opened at the opening of the outer end face of the fixed slide cylinder 22. A positioning cylinder 24 is fixedly arranged at the center of the rear end face of the fixed slide cylinder 22, and a connecting push plate 23 is fixedly arranged at the center of the front end face of the positioning cylinder 24. A material guiding baffle 29 is fixedly arranged at the top of the rear end face of the fixed slide cylinder 22.
[0036] The guiding device 3 includes a limiting bracket 32 for support. The inner end face of the limiting bracket 32 is symmetrically provided with profile pads 35 for guidance. Guide rails 36 are provided on the upper end faces of both sets of profile pads 35. Fixed brackets 37 are provided on the inner end faces of both sets of profile pads 35 and guide rails 36. The inner end face of the limiting bracket 32 is symmetrically and rotatably engaged with a synchronous pulley 31. A transmission screw 38 is fixedly provided on the inner end face of both sets of synchronous pulleys 31. The two sets of synchronous pulleys 31 are meshed and connected by a synchronous belt 34. A servo motor 33 is fixedly provided on the rear end face of the limiting bracket 32, directly opposite one of the transmission screws 38.
[0037] The flaring device 5 includes a connecting base 59 for support. A thermoplastic flaring mold 57 for shaping is fixedly installed on the upper end surface of the connecting base 59. Six sets of fixed guide grooves 58 are equidistantly opened on the inner end surface of the thermoplastic flaring mold 57. A fixed clamping plate 53 is fixedly installed on the inner end surface of the thermoplastic flaring mold 57 near the rear. A guide slide shaft 52 is slidably engaged on the inner end surface of the fixed clamping plate 53. A first spring retaining ring 51 is provided on the rear end surface of the guide slide shaft 52. A second spring 56 is provided on the front end surface of the guide slide shaft 52. A connecting push plate 55 is fixedly installed at the end of the front end surface of the guide slide shaft 52. A guide sleeve 54 for limiting is fixedly installed on the outer end surface of the thermoplastic flaring mold 57.
[0038] The bottom of the feeding hopper 6 is provided with a guide groove, which extends to the bottom of the feeding hopper 6. The fixed slide cylinder 22 is slidably engaged inside the feeding hopper 6 through the guide groove. The limiting slot 25 is coaxial with the feeding hopper 6, which facilitates the rapid and stable positioning and guidance of the pipe in the future.
[0039] The threaded guide seat 28 is adapted to the transmission screw 38, and the ball bearing slide 27 is adapted to the guide rail 36. The material guiding device 2 is slidably engaged on the upper end face of the profile pad 35 by the threaded guide seat 28 being adapted to the transmission screw 38 and the ball bearing slide 27 being adapted to the guide rail 36. This can effectively improve the stability and accuracy of the material guiding device 2 in driving the pipe to move.
[0040] The first spring retainer 51 and the second spring 56 are both fixedly connected to the fixed plate 53. The connecting push plate 55 is slidably engaged inside the thermoplastic flaring mold 57 through the fixed guide groove 58. The first spring retainer 51 and the second spring 56 can provide sufficient elasticity for the guide slide shaft 52 to reset, which facilitates the subsequent automatic driving of the connecting push plate 55 to push the shaped pipe.
[0041] A method for using a pipe flaring machine includes the following steps:
[0042] S1: For pipe storage, multiple sets of pipes that need to be shaped can be introduced into the interior of the feeding hopper 6 to complete the storage operation;
[0043] S2: Limiting the pipe material, the servo motor 33 can synchronously drive the two sets of synchronous pulleys 31 to rotate through the synchronous pulleys 31 and the synchronous belt 34. The two sets of synchronous pulleys 31 can be connected to the threaded guide seat 28 through the transmission screw 38, thereby synchronously driving the fixed slide cylinder 22 to perform cyclic back-and-forth displacement at the bottom of the feeding bin 6. When the guiding device 2 moves forward at the initial position, the positioning chamfer 21 inside the fixed slide cylinder 22 can limit the pipe material.
[0044] S3: Guide and shape the pipe. The guide device 2 moves towards the position of the flaring device 5 under the drive of the guide device 3 until the front opening of the pipe is positioned outside the thermoplastic flaring mold 57. The thermoplastic flaring mold 57 thermoplasticizes the opening of the pipe through thermoplastic shaping.
[0045] S4: The pipe is fed into the guide device 3, which drives the guide device 2 to move backward. At the same time, the connecting push plate 55 pushes the pipe out under the elastic push of the first spring retainer 51 and the second spring 56. At this time, the positioning cylinder 24 pushes the pipe out together through the connecting push plate 23, so that the pipe falls through the guide opening 8 under the guidance of the guide baffle 9.
[0046] Working Principle: Before use, the user can guide multiple sets of tubes to be shaped into the interior of the feeding hopper 6, facilitating subsequent rapid cyclic feeding of the tubes. During tube feeding, the user can activate the servo motor 33 via an external control device. The servo motor 33 then drives two sets of synchronous pulleys 31 to rotate synchronously via the synchronous pulleys 31 and the synchronous belt 34. These two sets of synchronous pulleys 31 are connected to the threaded guide seat 28 via the transmission screw 38, thus synchronously driving the fixed slide cylinder 22 to circulate back and forth at the bottom of the feeding hopper 6. When the guiding device 2 moves forward from its initial position, the positioning chamfer 21 inside the fixed slide cylinder 22 limits the tube. Simultaneously, the fixed slide cylinder 22 guides the tube into its interior via the limiting slot 25, completing the tube's limiting. The rear guide device 2 is moved toward the position of the flaring device 5 under the drive of the guide device 3. During the movement, the guide baffle 29 can limit the bottom of the discharge bin 6 to prevent a new set of pipes from falling until the front opening of the pipe is positioned outside the thermoplastic flaring mold 57. At this time, the thermoplastic flaring mold 57 thermoplasticizes the opening of the pipe through thermoplastic forming. At the same time, the guide sleeve 54 can protect the deformed part of the pipe to prevent deformation. The deformed pipe can push the connecting push plate 55 to move backward. After the forming is completed, the guide device 3 drives the guide device 2 to move backward. At the same time, the connecting push plate 55 can push the pipe out under the elastic push of the first spring retainer 51 and the second spring 56. At this time, the positioning cylinder 24 can push the pipe out together through the connecting push plate 23, so that the pipe falls through the guide opening 8 under the guidance of the guide baffle 9.
[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pipe flaring machine, comprising a support base (4) for support, two sets of profile support columns (1) for support are symmetrically arranged near the middle of the upper end face of the support base (4), a support plate (7) is fixedly arranged on the upper end face of the two sets of profile support columns (1), a material feeding bin (6) is fixedly arranged on the inner end face of the two sets of support plates (7), a material guiding opening (8) is opened at the middle of the upper end face of the support base (4), and a material guiding baffle (9) is symmetrically arranged on the upper end face of the support base (4) with the material guiding opening (8) as the center, characterized in that: A flaring device (5) for flaring is fixedly provided on the upper end face of the support base (4) near the rear, and a guide device (3) for transmission is fixedly provided on the upper end face of the support base (4) near the front, and a material feeding device (2) for feeding is provided on the upper end face of the guide device (3). The material guiding device (2) includes a positioning plate (26) for support. Threaded guide seats (28) are symmetrically arranged near the middle of the lower end face of the positioning plate (26), and ball bearing slides (27) are symmetrically arranged near the outer side of the lower end face of the positioning plate (26). A fixed slide cylinder (22) is fixedly arranged at the center of the upper end face of the positioning plate (26). A limit slot (25) is opened inside the fixed slide cylinder (22), and a positioning chamfer (21) is symmetrically opened at the opening of the outer end face of the fixed slide cylinder (22). A positioning cylinder (24) is fixedly arranged at the center of the rear end face of the fixed slide cylinder (22), and a connecting push plate (23) is fixedly arranged at the center of the front end face of the positioning cylinder (24). A material guiding baffle (29) is fixedly arranged at the top of the rear end face of the fixed slide cylinder (22). The guiding device (3) includes a limiting seat (32) for support. The inner end face of the limiting seat (32) is symmetrically provided with a profile pad (35) for guidance. A guide slide rail (36) is provided on the upper end face of both sets of profile pads (35). A fixing seat (37) is provided on the inner end face of both sets of profile pads (35) and the guide slide rail (36). A synchronous pulley (31) is symmetrically rotated and engaged on the inner end face of the limiting seat (32). A transmission screw (38) is fixedly provided on the inner end face of both sets of synchronous pulleys (31). The two sets of synchronous pulleys (31) are meshed and connected by a synchronous belt (34). A servo motor (33) is fixedly provided on the rear end face of the limiting seat (32) opposite to one of the sets of transmission screws (38).
2. The pipe flaring machine according to claim 1, characterized in that: The flaring device (5) includes a connecting base (59) for support. A thermoplastic flaring mold (57) for shaping is fixedly provided on the upper end face of the connecting base (59). Six sets of fixed guide grooves (58) are equidistantly provided on the inner end face of the thermoplastic flaring mold (57). A fixed clamping plate (53) is fixedly provided on the inner end face of the thermoplastic flaring mold (57) near the rear. A guide slide shaft (52) is slidably clamped on the inner end face of the fixed clamping plate (53). A first spring retainer (51) is provided on the rear end face of the guide slide shaft (52). A second spring (56) is provided on the front end face of the guide slide shaft (52). A connecting push plate (55) is fixedly provided at the end of the front end face of the guide slide shaft (52). A guide sleeve (54) for limiting is fixedly provided on the outer end face of the thermoplastic flaring mold (57).
3. A pipe flaring machine according to claim 2, characterized in that: The bottom of the feeding hopper (6) is provided with a material guiding groove, and the material guiding groove extends to the bottom of the feeding hopper (6). The fixed slide cylinder (22) slides and engages with the inside of the feeding hopper (6) through the material guiding groove. The limiting slot (25) is coaxial with the feeding hopper (6).
4. A pipe flaring machine according to claim 3, characterized in that: The threaded guide seat (28) is adapted to the transmission screw (38), the ball slide seat (27) is adapted to the guide rail (36), and the material guiding device (2) is slidably engaged with the upper end face of the profile pad (35) through the adaptation of the threaded guide seat (28) to the transmission screw (38) and the adaptation of the ball slide seat (27) to the guide rail (36).
5. A pipe flaring machine according to claim 4, characterized in that: The first spring retainer (51) and the second spring (56) are both fixedly connected to the fixed retainer plate (53), and the connecting push plate (55) is slidably engaged inside the thermoplastic flaring mold (57) through the fixed guide groove (58).
6. A method of using a pipe flaring machine according to any one of claims 1-5, characterized in that: Includes the following steps: S1: For pipe storage, multiple sets of pipes to be shaped can be introduced into the interior of the feeding hopper (6) to complete the storage operation; S2: Limit the pipe material. The servo motor (33) can drive the two sets of synchronous pulleys (31) to rotate synchronously through the synchronous pulley (31) and the synchronous belt (34). The two sets of synchronous pulleys (31) can be connected to the threaded guide seat (28) through the transmission screw (38), thereby synchronously driving the fixed slide (22) to perform cyclical forward and backward displacement in the lower part of the feeding bin (6). When the guiding device (2) moves forward in the initial position, the positioning chamfer (21) inside the fixed slide (22) can limit the pipe material. S3: Guide and shape the pipe. The guide device (2) moves towards the position of the flaring device (5) under the drive of the guide device (3) until the front opening of the pipe is positioned outside the thermoplastic flaring mold (57). The thermoplastic flaring mold (57) thermoplasticizes the opening of the pipe through thermoplastic shaping. S4: The pipe is fed into the guide device (3) and the guide device (2) moves backward. At the same time, the connecting push plate (55) can push the pipe out under the elastic push of the first spring retainer (51) and the second spring (56). At this time, the positioning cylinder (24) can push the pipe out together through the connecting push plate (23), so that the pipe falls through the guide opening (8) under the guidance of the guide baffle (9).
Citation Information
Patent Citations
Pipe expanding machine
CN214164008U
Full-automatic CPVC (Chlorinated Polyvinyl Chloride) double-outlet electric power pipe flaring equipment
CN215095614U