Straight pipe ring sleeving machine

Abstract

The invention discloses a straight pipe ring sleeving machine which is characterized in that when straight pipe ring sleeving machining is carried out, a rotating disc rotates a clamping mechanism to face a straight pipe feeding position, a straight pipe in a bearing groove is pushed into a clamping groove of the clamping mechanism through an ejector rod, and then the rotating disc drives the clamping mechanism and the straight pipe on the clamping mechanism to rotate to face a ring sleeving position; the pushing sleeve drives the core rod to move to the positioning groove, at the moment, the lantern ring part of the core rod can be inserted into the welding ring of the positioning groove, then the pushing sleeve can drive the core rod and the welding ring to synchronously move to be close to the rotating disc till the core rod abuts against the end of the straight pipe, and the pushing sleeve can continue to move relative to the core rod and push the welding ring on the periphery of the lantern ring part to the periphery of the straight pipe. The whole process is simple and rapid, an additional ring pressing mechanism does not need to be added, ring sleeving and ring pressing work can be directly completed through the material pushing sleeve and the core rod, the machining efficiency is improved, and meanwhile the overall structure of the straight pipe ring sleeving machine is simplified.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger processing technology, and in particular to a straight tube ring fitting machine. Background Technology

[0002] During heat exchanger manufacturing, U-shaped elbows are typically used to weld the copper tubes together in series. Before welding, welding rings are usually fitted onto the outer circumference of the copper tubes. However, since existing heat exchangers generally use U-shaped copper tubes, existing ring-fitting machines can usually only fit U-shaped tubes and cannot directly fit rings onto straight tubes, making manufacturing difficult for heat exchangers with straight copper tubes. Furthermore, after fitting the welding ring onto the copper tube, existing ring-fitting machines require an additional pressing mechanism to deform the welding ring and secure it more firmly to the outer circumference of the copper tube. This pressing mechanism makes the overall structure of the ring-fitting machine complex and cumbersome, further complicating the ring-fitting process and reducing manufacturing efficiency. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a straight pipe ring-forming machine, which can ring straight pipes with high processing efficiency.

[0004] According to a first aspect of the present invention, a straight pipe collar machine includes: a frame having spaced-apart straight pipe feeding positions and collar positions; a turntable rotatably mounted on the frame, the straight pipe feeding positions and the collar positions being distributed on the outer periphery of the turntable, the turntable being provided with at least two clamping mechanisms, each clamping mechanism having a clamping groove arranged radially along the turntable for clamping the straight pipe, all the clamping mechanisms being arranged sequentially at intervals along the circumference of the turntable, and the turntable being capable of driving the clamping mechanisms to rotate toward the straight pipe feeding position or the collar position. A ring position; a straight pipe feeding mechanism, located at the straight pipe feeding position, the straight pipe feeding mechanism includes a storage base and a top rod, the storage base has a receiving groove arranged horizontally and facing the turntable, the top rod is movably disposed in the receiving groove and can move relative to the storage base along the receiving groove, when the turntable drives the clamping mechanism to rotate to face the straight pipe feeding position, the top rod can push the straight pipe in the receiving groove into the clamping groove of the clamping mechanism; a collar mechanism, located at the collar position, the collar mechanism... The assembly includes a guide plate and a pusher assembly. The guide plate has a guide groove arranged vertically, and the lower end of the guide groove has a positioning groove for vertically placing the welding ring. The pusher assembly includes a pusher sleeve and a core rod. The pusher sleeve is slidably mounted on the frame and can move horizontally towards or away from the turntable. The core rod is slidably mounted inside the pusher sleeve, and a first elastic element is provided between the core rod and the pusher sleeve. The core rod has a collar portion that can extend outside the pusher sleeve, and the diameter of the collar portion is smaller than that of the welding ring. The inner diameter of the pusher sleeve is larger than the outer diameter of the straight pipe. When the pusher sleeve moves the core rod closer to the turntable and passes through the positioning groove, the core rod can be inserted into the welding ring in the positioning groove and move the welding ring synchronously closer to the turntable. When the turntable moves the clamping mechanism to the position facing the collar, the core rod is coaxially arranged with the clamping groove. The core rod can abut against the port of the straight pipe in the clamping mechanism, and the pusher sleeve can push the welding ring on the outer periphery of the collar to the outer periphery of the straight pipe.

[0005] The straight pipe collar machine according to embodiments of the present invention has at least the following beneficial effects: When a straight pipe ring-forming machine according to an embodiment of the present invention is used to process straight pipes into rings, the turntable rotates one of the clamping mechanisms to face the straight pipe feeding position, feeding the straight pipe into the receiving groove of the discharge base. Then, the straight pipe in the receiving groove is pushed into the clamping groove of the clamping mechanism by the push rod, and the clamping mechanism clamps and fixes the straight pipe. Afterwards, the turntable drives the clamping mechanism and the straight pipe on it to face the ring-forming position. When ringing, the welding ring is fed into the guide groove of the guide plate. The welding ring slides down along the guide groove into the positioning groove. The push sleeve drives the core rod to move into the positioning groove. At this time, the ring-forming part of the core rod can be inserted. Inside the positioning groove welded ring, the pusher sleeve can drive the core rod and welded ring to move synchronously closer to the turntable until the core rod abuts the end of the straight pipe. The pusher sleeve can then continue to move relative to the core rod and push the welded ring on the outer circumference of the collar part to the outer circumference of the straight pipe. During this process, since the inner diameter of the welded ring is smaller than the outer diameter of the straight pipe, the welded ring can expand outward and deform, and firmly fit on the outer circumference of the straight pipe, thus completing the collaring work of the straight pipe. The whole process is simple and fast, and no additional pressing ring mechanism is required. The collaring and pressing ring work can be completed directly through the pusher sleeve and the core rod, which not only improves the processing efficiency, but also simplifies the overall structure of the straight pipe collaring machine.

[0006] According to some embodiments of the present invention, the frame is further provided with a feeding position located outside the turntable, the feeding position is provided with a feeding hopper, and the frame is further provided with a feeding mechanism, the feeding mechanism including a feeding rod movably mounted on the frame and located above the turntable, the feeding rod being arranged horizontally and capable of moving relative to the frame toward or away from the feeding hopper, when the turntable drives the clamping mechanism to rotate toward the feeding position, the feeding rod is coaxially arranged with the clamping groove of the clamping mechanism and is capable of pushing the straight tube in the clamping groove outward into the feeding hopper.

[0007] According to some embodiments of the present invention, the frame is further provided with a correction position located outside the turntable. The straight tube loading position, the correction position, the collar position, and the unloading position are arranged sequentially at intervals along the circumference of the turntable, and the straight tube loading position and the collar position are arranged opposite each other in the front-back direction, while the correction position and the unloading position are arranged opposite each other in the left-right direction. An alignment mold base is slidably mounted on the correction position. The frame is equipped with a first drive mechanism that is pulverically connected to the alignment mold base. The alignment mold base is equipped with a mounting rod extending horizontally toward the unloading position. A unloading block is mounted on one end of the mounting rod away from the alignment mold base. The unloading rod is mounted on the unloading block. The first drive mechanism can drive the alignment mold base to move in the left-right direction and drive the unloading rod to move closer to or away from the unloading hopper.

[0008] According to some embodiments of the present invention, the frame is equipped with a fixed base, the turntable is rotatably mounted on the outer periphery of the fixed base, a positioning seat is mounted on the fixed base, the upper end of the positioning seat is slidably mounted on the mounting rod via a linear bearing, and the positioning seat is equipped with two positioning rods arranged in a horizontal direction, one of which faces the straight pipe feeding position and can abut against the end of the straight pipe during the straight pipe feeding process, and the other positioning rod faces the collar position and can abut against the end of the straight pipe during the collaring process.

[0009] According to some embodiments of the present invention, the straight pipe feeding mechanism further includes a straight pipe vibrating plate and a storage plate. The storage plate is installed on the storage base. The storage plate has a storage trough arranged in the vertical direction for the straight pipe to be placed horizontally. The receiving groove is located below the storage trough and communicates with the storage trough. The vibrating channel of the straight pipe vibrating plate is connected to the upper end of the storage trough.

[0010] According to some embodiments of the present invention, the collar mechanism is located on the rear side of the turntable, and the collar mechanism further includes: a slide block, which is slidably mounted on the frame in the front-rear direction, and the pusher sleeve is mounted on the slide block and can move with the slide block closer to or away from the turntable; a support, which is slidably mounted on the guide plate in the vertical direction, and the positioning groove is formed at the upper end of the support; and a linkage component, which is movably disposed between the slide block and the support, such that when the slide block moves closer to the guide plate, the slide block can drive the support to move downward through the linkage component; when the slide block drives the pusher sleeve to move forward and causes the core rod to be inserted into the welding ring in the positioning groove, when the slide block continues to move forward, it can drive the support to move downward through the linkage component, so that the positioning groove moves downward and disengages from the welding ring.

[0011] According to some embodiments of the present invention, the linkage assembly includes: a rotating seat, fixedly mounted on the frame and located on one side of the slide; a pressure rod, rotatably mounted on the rotating seat and extending toward the support, the free end of the pressure rod having a movable head mounted thereon, the movable head being movably mounted on the support, the pressure rod being able to rotate relative to the rotating seat in a vertical direction and drive the support to move in a vertical direction through the movable head; a second elastic member, disposed between the pressure rod and the frame; a pressure block, mounted on the pressure rod, the upper surface of the pressure block having a first plane, a transition surface and a second plane connected sequentially from back to front, the transition surface extending upward from back to front; and a rolling part. The roller is movably mounted on the slide block and rolls against the upper surface of the pressure block; when the slide block drives the pusher sleeve and the core rod to move forward and approach the positioning groove, the roller can roll along the first plane; when the slide block drives the pusher sleeve and the core rod to continue moving forward and causes the core rod to be inserted forward into the welding ring in the positioning groove, the roller can roll from the first plane to the transition surface, and the pressure rod can rotate downward relative to the rotating seat and drive the support to move downward through the movable head; when the slide block drives the pusher sleeve and the core rod to continue moving forward and approach the turntable, the roller can roll from the transition surface to the second plane.

[0012] According to some embodiments of the present invention, the collar mechanism further includes a material-stopping assembly, the material-stopping assembly comprising: a vertical plate mounted on the slide in a vertical direction and located behind the guide plate, the vertical plate being mounted with a guide rod extending in a front-rear direction to the front side of the guide plate; a first material-stopping seat mounted on the guide rod and located behind the guide plate, the first material-stopping seat being mounted with a first material-stopping rod extending forward toward the guide groove; and a second material-stopping seat mounted on the guide rod and located in front of the guide plate, the second material-stopping seat being mounted with a second material-stopping rod extending rearward toward the guide groove, the second material-stopping rod being located above the first material-stopping rod; when the slide moves forward relative to the frame, the first material-stopping rod can move forward and insert into the guide groove, and the second material-stopping rod can move forward and disengage from the guide groove; when the slide moves backward relative to the frame, the first material-stopping rod can move backward and disengage from the guide groove, and the second material-stopping rod can move backward and insert into the guide groove.

[0013] According to some embodiments of the present invention, the collar mechanism further includes a welding ring vibrating plate, wherein the vibrating material channel of the welding ring vibrating plate is connected to the upper end of the guide groove.

[0014] According to some embodiments of the present invention, the clamping mechanism includes: a mounting base mounted on the turntable; a sliding rod passing through the mounting base and the turntable in a vertical direction and extending upward above the mounting base; a lower clamping seat mounted on the mounting base, the upper surface of the lower clamping seat having an upward-opening lower half-groove, the lower half-groove being arranged horizontally along the radial direction of the turntable and having lower guide portions at both ends; a pressure plate mounted on the sliding rod; an upper clamping seat mounted on the lower side of the pressure plate, the lower surface of the upper clamping seat having a downward-opening upper half-groove, the upper half-groove being arranged horizontally along the radial direction of the turntable and having upper guide portions at both ends; and a third elastic member sleeved on the sliding rod, the upper end of the third elastic member being connected to or abutting the mounting base, the lower end of the third elastic member being connected to or abutting the side wall of the sliding rod, the elastic force of the third elastic member driving the sliding rod to drive the lower clamping seat downward to press against the upper clamping seat, and causing the upper half-groove and the lower half-groove to surround and form the clamping groove. Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of a straight pipe collar machine according to an embodiment of the present invention; Figure 2 This is a partial schematic diagram of the straight pipe collar machine according to an embodiment of the present invention; Figure 3 This is a partial top view of the straight pipe collar machine according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of the straight pipe collar machine according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the straight pipe feeding mechanism according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the collar mechanism according to an embodiment of the present invention; Figure 7 This is a cross-sectional schematic diagram of the collar mechanism according to an embodiment of the present invention.

[0016] Figure label: Frame 100, straight pipe feeding position 110, straightening position 120, collar position 130, unloading position 140, turntable 150, clamping mechanism 160, clamping groove 161, mounting base 162, sliding rod 163, lower clamping base 164, pressure plate 165, upper clamping base 166, third elastic element 167; Straight pipe feeding mechanism 200, storage base 210, receiving groove 211, top rod 220, straight pipe vibrating plate 230, storage plate 240, storage trough 241, second drive mechanism 250; The components include: a collar mechanism 300, a guide plate 310, a guide groove 311, a pusher sleeve 320, a first elastic element 321, a core rod 330, a collar part 331, a slide block 340, a rolling part 341, a third drive mechanism 342, a support 350, a positioning groove 351, a rotating seat 360, a pressure rod 370, a movable head 371, a second elastic element 372, a pressure block 380, a first plane 381, a transition surface 382, ​​a second plane 383, a vertical plate 390, a guide rod 391, a first stop seat 392, a first stop rod 393, a second stop seat 394, and a second stop rod 395. The components include a feeding mechanism 400, a feeding rod 410, a feeding hopper 420, an alignment mold base 430, a mounting rod 440, a feeding block 450, a first drive mechanism 460, a fixed base 470, a positioning base 480, and a positioning rod 481. Detailed Implementation

[0017] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0018] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0019] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0020] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0021] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] Reference Figures 1 to 7An embodiment of the present invention provides a straight pipe collar machine, comprising: a frame 100 having spaced-apart straight pipe loading positions 110 and collar positions 130; a turntable 150 rotatably mounted on the frame 100, the straight pipe loading positions 110 and collar positions 130 being distributed on the outer periphery of the turntable 150; at least two clamping mechanisms 160 being provided on the turntable 150, each clamping mechanism 160 having a clamping groove 161 arranged radially along the turntable 150 for clamping the straight pipe; all clamping mechanisms 160 being arranged sequentially at intervals along the circumference of the turntable 150; and the turntable 150 being able to drive the clamping mechanisms 160 to rotate toward the straight pipe loading position 110 or the collar position. 130; A straight pipe feeding mechanism 200 is located at the straight pipe feeding position 110. The straight pipe feeding mechanism 200 includes a storage base 210 and a top rod 220. The storage base 210 has a receiving groove 211 arranged horizontally and facing the turntable 150. The top rod 220 is movably disposed in the receiving groove 211 and can move relative to the storage base 210 along the receiving groove 211. When the turntable 150 drives the clamping mechanism 160 to rotate to face the straight pipe feeding position 110, the top rod 220 can push the straight pipe in the receiving groove 211 into the clamping groove 161 of the clamping mechanism 160; A collar mechanism 300 is located at the collar position 130, and a collar... The ring mechanism 300 includes a guide plate 310 and a pusher assembly. The guide plate 310 has a guide groove 311 arranged in the vertical direction. The lower end of the guide groove 311 is provided with a positioning groove 351 for vertical placement of the welding ring. The pusher assembly includes a pusher sleeve 320 and a core rod 330. The pusher sleeve 320 is slidably mounted on the frame 100 and can move horizontally towards or away from the turntable 150. The core rod 330 is slidably mounted inside the pusher sleeve 320, and a first elastic element 321 is provided between the core rod 330 and the pusher sleeve 320. The core rod 330 has a collar portion 331 that can extend out of the pusher sleeve 320. The diameter of 331 is smaller than the inner diameter of the welding ring and larger than the outer diameter of the straight pipe. The inner diameter of the pusher sleeve 320 is larger than the outer diameter of the straight pipe. When the pusher sleeve 320 drives the core rod 330 to move closer to the turntable 150 and pass through the positioning groove 351, the core rod 330 can be inserted into the welding ring in the positioning groove 351 and drive the welding ring to move synchronously closer to the turntable 150. When the turntable 150 drives the clamping mechanism 160 to move toward the collar position 130, the core rod 330 and the clamping groove 161 are arranged coaxially. The core rod 330 can abut against the port of the straight pipe in the clamping mechanism 160. The pusher sleeve 320 can push the welding ring on the outer periphery of the collar part 331 to the outer periphery of the straight pipe.

[0023] When a straight pipe ring-forming machine according to this invention is used, and straight pipes need to be ring-formed, the turntable 150 rotates one of the clamping mechanisms 160 to face the straight pipe loading position 110, loading the straight pipe into the receiving groove 211 of the discharge base. Then, the push rod 220 pushes the straight pipe in the receiving groove 211 into the clamping groove 161 of the clamping mechanism 160, clamping and fixing the straight pipe. Afterwards, the turntable 150 drives the clamping mechanism 160 and the straight pipe thereon to rotate to face the ring-forming position 130. During ring forming, the welding ring is loaded into the guide groove 311 of the guide plate 310. The welding ring slides down along the guide groove 311 into the positioning groove 351. The push sleeve 320 drives the core rod 330 to move into the positioning groove 351. The collar portion 331 of the core rod 330 can be inserted into the welding ring of the positioning groove 351. Then, the pusher sleeve 320 can drive the core rod 330 and the welding ring to move synchronously closer to the turntable 150 until the core rod 330 abuts against the end of the straight pipe. The pusher sleeve 320 can continue to move relative to the core rod 330 and push the welding ring on the outer periphery of the collar portion 331 to the outer periphery of the straight pipe. During this process, since the inner diameter of the welding ring is smaller than the outer diameter of the straight pipe, the welding ring can expand outward and deform and be firmly fitted onto the outer periphery of the straight pipe, thereby completing the collaring work of the straight pipe. The whole process is simple and fast, and no additional pressing ring mechanism is required. The collaring and pressing ring work can be completed directly by the pusher sleeve 320 and the core rod 330, which not only improves the processing efficiency, but also simplifies the overall structure of the straight pipe collaring machine. In addition, since at least two clamping mechanisms 160 are provided on the turntable 150, the straight pipe feeding mechanism 200 and the ring-jointing mechanism 300 can work simultaneously, thereby further improving the working efficiency of the straight pipe ring-jointing machine.

[0024] Understandably, referring to Figure 6 and Figure 7 In some embodiments, the core rod 330 has a tapered portion at one end of the collar portion 331. The tapered portion can be inserted into the straight tube and the collar portion 331 abuts against the end of the straight tube, thereby making the positioning between the welding ring and the straight tube more accurate and the welding ring can be more accurately fitted onto the outer circumference of the straight tube.

[0025] Reference Figures 1 to 3In some embodiments, the frame 100 is further provided with a feeding position 140 located outside the turntable 150. The feeding position 140 is provided with a feeding hopper 420. The frame 100 is also provided with a feeding mechanism 400. The feeding mechanism 400 includes a feeding rod 410 movably mounted on the frame 100 and located above the turntable 150. The feeding rod 410 is arranged in a horizontal direction and can move relative to the frame 100 to approach or move away from the feeding hopper 420. When the turntable 150 drives the clamping mechanism 160 to rotate toward the feeding position 140, the feeding rod 410 is coaxially arranged with the clamping groove 161 of the clamping mechanism 160 and can push the straight tube in the clamping groove 161 outward into the feeding hopper 420. Therefore, after the collar operation is completed, the turntable 150 can drive the clamping mechanism 160 and the straight tube of the collar to rotate from the collar position 130 to the unloading position 140. At this time, the straight tube in the clamping mechanism 160 can be pushed outward into the unloading hopper 420 by the unloading rod 410, thereby completing the unloading operation.

[0026] Reference Figures 1 to 3 In some embodiments, the frame 100 is further provided with a correction position 120 located outside the turntable 150. The straight pipe loading position 110, the correction position 120, the collar position 130 and the unloading position 140 are arranged sequentially and at intervals along the circumference of the turntable 150. The straight pipe loading position 110 and the collar position 130 are arranged opposite each other in the front-back direction, and the correction position 120 and the unloading position 140 are arranged opposite each other in the left-right direction. Thus, the turntable 150 can rotate the clamping mechanism 160 sequentially toward the straight pipe loading position 110, the correction position 120, the collar position 130 and the unloading position 140. Alignment mold base 430 is slidably mounted on the alignment position 120. A first drive mechanism 460, which is drively connected to the alignment mold base 430, is mounted on the frame 100. The alignment mold base 430 has a mounting rod 440 extending horizontally towards the unloading position 140. A unloading block 450 is mounted on the end of the mounting rod 440 facing away from the alignment mold base 430. An unloading rod 410 is mounted on the unloading block 450. The first drive mechanism 460 can drive the alignment mold base 430 to move in the left-right direction and move the unloading rod 410 closer to or away from the unloading hopper 420. The mounting rod 440 allows for more precise installation and translation of the unloading rod 410. Furthermore, the mounting rod 440 allows the first drive mechanism 460, which drives the unloading rod 410, to be mounted on the side opposite to the unloading position 140, thus facilitating the installation layout of the first drive mechanism 460 on the frame 100.

[0027] Reference Figures 1 to 3In some embodiments, the frame 100 is equipped with a fixed base 470, and the turntable 150 is rotatably mounted on the outer periphery of the fixed base 470. A positioning base 480 is mounted on the fixed base 470, and the upper end of the positioning base 480 is slidably mounted on the mounting rod 440 via a linear bearing. The positioning base 480 is equipped with two positioning rods 481 arranged horizontally. One positioning rod 481 faces the straight tube loading position 110 and can abut against the end of the straight tube during the straight tube loading process. The other positioning rod 481 faces the collar position 130 and can abut against the end of the straight tube during the collaring process. This facilitates the positioning and limiting of the straight tube on the clamping mechanism 160. During the collaring process, since the pusher sleeve 320 applies a large pushing force to the straight tube when pushing the welding ring to the outer periphery of the straight tube, the positioning rod 481 can abut against the end of the straight tube and prevent the straight tube from shifting during the collaring process, thereby facilitating the effective operation of the collaring.

[0028] Reference Figure 1 and Figure 5 In some embodiments, the straight pipe feeding mechanism 200 further includes a straight pipe vibrating plate 230 and a storage plate 240. The storage plate 240 is installed on the storage base 210 and has a storage trough 241 arranged vertically for horizontal placement of the straight pipe. A receiving groove 211 is located below the storage trough 241 and communicates with it. The vibrating channel of the straight pipe vibrating plate 230 is connected to the upper end of the storage trough 241. Thus, the straight pipe can be transported to the storage trough 241 by the straight pipe vibrating plate 230. The straight pipe is stored horizontally in the storage trough 241, and multiple straight pipes can be stored in the storage trough 241. The multiple straight pipes are stacked in the storage trough 241 from bottom to top. The straight pipe at the bottom can fall into the receiving groove 211 and can be moved to the corresponding clamping mechanism 160 under the action of the top rod 220.

[0029] Reference Figure 6 and Figure 7The collar mechanism 300 is located on the rear side of the turntable 150. The collar mechanism 300 also includes a slide 340, a support 350, and a linkage component. The slide block 340 is slidably mounted on the frame 100 in the front-to-back direction. The pusher sleeve 320 is mounted on the slide block 340 and can move with the slide block 340 to approach or move away from the turntable 150. The support 350 is slidably mounted on the guide plate 310 in the up-down direction. The positioning groove 351 is opened at the upper end of the support 350. The linkage component is movably set between the slide block 340 and the support 350. When the slide block 340 moves closer to the guide plate 310, the slide block 340 can drive the support 350 to move downward through the linkage component. When the slide block 340 drives the pusher sleeve 320 to move forward and causes the core rod 330 to be inserted into the welding ring in the positioning groove 351, the slide block 340 continues to move forward and can drive the support 350 to move downward through the linkage component, causing the positioning groove 351 to move downward and disengage from the welding ring. Thus, the welding ring can be smoothly hung on the core rod 330 and disengage from the positioning groove 351 and move forward with the core rod 330 to the straight pipe.

[0030] Understandably, referring to Figure 6 and Figure 7 The collar mechanism 300 also includes a third drive mechanism 342, which is connected to the slide 340 and drives the slide 340 to move in the front-back direction. The third drive mechanism 342 can be a cylinder, an electric push rod, etc., and this invention does not specifically limit its application.

[0031] Reference Figure 6 and Figure 7In some embodiments, the linkage assembly includes a rotating seat 360, a pressure rod 370, a second elastic element 372, a pressure block 380, and a rolling part 341. The rotating seat 360 is fixedly installed on the frame 100 and located on one side of the slide 340; the pressure rod 370 is rotatably installed on the rotating seat 360 and extends toward the support 350, and a movable head 371 is installed on the free end of the pressure rod 370. The movable head 371 is movably installed on the support 350, and the pressure rod 370 can rotate relative to the rotating seat 360 in the vertical direction and drive the support 350 to move in the vertical direction through the movable head 371; the second elastic element 372 is disposed between the pressure rod 370 and the frame 100; the pressure block 380 is installed on the pressure rod 370, and the upper surface of the pressure block 380 has a first plane 381, a transition surface 382, ​​and a second plane 383 connected sequentially from back to front, and the transition surface 382 extends upward from back to front; the rolling part 341 is rotatably installed on the slide 360. The slide 340 rolls against the upper surface of the pressure block 380; when the slide 340 drives the pusher sleeve 320 and the core rod 330 to move forward and approach the positioning groove 351, the rolling part 341 can roll along the first plane 381; when the slide 340 drives the pusher sleeve 320 and the core rod 330 to continue moving forward and the core rod 330 is inserted forward into the welding ring in the positioning groove 351, the rolling part 341 can roll from the first plane 381 to the transition surface 382, ​​and the pressure rod 370 can rotate downward relative to the rotating seat 360 and drive the support 350 to move downward through the movable head 371; when the slide 340 drives the pusher sleeve 320 and the core rod 330 to continue moving forward and approach the turntable 150, the rolling part 341 can roll from the transition surface 382 to the second plane 383. Therefore, as the slide block 340 drives the pusher sleeve 320 and the core rod 330 to move forward, the rolling part 341 and the pressure rod 370 can drive the support 350 to move downward when the core rod 330 moves to the positioning groove 351, so that the welding ring can be disengaged from the positioning groove 351. This allows the welding ring to be smoothly hung on the core rod 330 and disengaged from the positioning groove 351, following the core rod 330 to move forward to the straight pipe.

[0032] Reference Figure 6 and Figure 7In some embodiments, the collar mechanism 300 further includes a material-stopping assembly, which includes a vertical plate 390, a first material-stopping seat 392, and a second material-stopping seat 394. The vertical plate 390 is mounted vertically on the slide 340 and located behind the guide plate 310. The vertical plate 390 is equipped with a guide rod 391 extending in the front-rear direction to the front of the guide plate 310. The first material-stopping seat 392 is mounted on the guide rod 391 and located behind the guide plate 310. The first material-stopping seat 392 is equipped with a first material-stopping rod 393 extending forward toward the guide groove 311. The second material-stopping seat 394 is mounted on the guide rod 391 and located behind the guide plate 310. On the front side of the guide plate 310, the second stop seat 394 is equipped with a second stop rod 395 extending rearward toward the guide groove 311. The second stop rod 395 is located above the first stop rod 393. When the slide 340 moves forward relative to the frame 100, the first stop rod 393 can move forward and insert into the guide groove 311, and the second stop rod 395 can move forward and disengage from the guide groove 311. When the slide 340 moves backward relative to the frame 100, the first stop rod 393 can move backward and disengage from the guide groove 311, and the second stop rod 395 can move backward and insert into the guide groove 311. Therefore, when the slide 340 moves forward, the first stop rod 393 inserts into the guide groove 311, and the second stop rod 395 disengages from the guide groove 311, allowing the welding ring above the second stop rod 395 to descend along the guide groove 311 and be stored between the first stop rod 393 and the second stop rod 395. When the slide 340 moves backward, the first stop rod 393 disengages from the guide groove 311, and the second stop rod 395 inserts into the guide groove 311, allowing the welding ring between the first stop rod 393 and the second stop rod 395 to fall down along the guide groove 311 into the positioning groove 351. The second stop rod 395 also prevents the welding ring at the top from falling down along the guide groove 311 into the positioning groove 351. Thus, during the ring-fitting process, the welding rings can be released one by one into the positioning groove 351 by the first stop rod 393 and the second stop rod 395, which is beneficial to the orderly progress of the ring-fitting work.

[0033] Reference Figure 1 In some embodiments, the collar mechanism 300 further includes a welding ring vibrating plate, the vibrating channel of which is connected to the upper end of the guide groove 311, thereby enabling orderly feeding of materials into the guide groove 311.

[0034] Reference Figures 1 to 4In some embodiments, the clamping mechanism 160 includes a mounting base 162, a sliding rod 163, a lower clamping base 164, a pressure plate 165, an upper clamping base 166, and a third elastic element 167. The mounting base 162 is mounted on the turntable 150; the sliding rod 163 passes through the mounting base 162 and the turntable 150 in a vertical direction and extends upwards above the mounting base 162; the lower clamping base 164 is mounted on the mounting base 162, and its upper surface has an upward-opening lower half-groove, which is arranged horizontally along the radial direction of the turntable 150 and has lower guide portions at both ends; the pressure plate 165 is mounted on the sliding rod 163; the upper clamping base 166 is mounted on the lower side of the pressure plate 165, and its lower surface has an opening... An upper half-groove with an opening facing downwards is provided. The upper half-groove is arranged horizontally along the radial direction of the turntable 150 and upper guide portions are provided at both ends. A third elastic member 167 is sleeved on the sliding rod 163. The upper end of the third elastic member 167 is connected to or abuts against the mounting base 162, and the lower end of the third elastic member 167 is connected to or abuts against the side wall of the sliding rod 163. The elastic force of the third elastic member 167 drives the sliding rod 163 to drive the lower clamping seat 164 to press downwards against the upper clamping seat 166, so that the upper half-groove and the lower half-groove surround to form a clamping groove 161. Therefore, during the straight pipe feeding process, when the top rod 220 pushes the straight pipe into the clamping groove 161, it can push the upper clamping seat 166 and the pressure plate 165 and drive the sliding rod 163 to move upward. The upper clamping seat 166 moves away from the lower clamping seat 164 and opens the clamping groove 161, so that the straight pipe can be smoothly inserted into the clamping groove 161. Then, the sliding rod can move downward and reset under the action of the third elastic element 167, and make the upper clamping seat 166 press down on the straight pipe, thereby stably clamping the straight pipe.

[0035] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A straight pipe collar machine, characterized in that, include: The frame (100) has spaced straight pipe feeding positions (110) and collar positions (130). A turntable (150) is rotatably mounted on the frame (100). The straight pipe loading position (110) and the collar position (130) are distributed on the outer periphery of the turntable (150). At least two clamping mechanisms (160) are provided on the turntable (150). The clamping mechanism (160) has a clamping groove (161) arranged radially along the turntable (150) for clamping the straight pipe. All the clamping mechanisms (160) are arranged sequentially at intervals along the circumference of the turntable (150). The turntable (150) can drive the clamping mechanism (160) to rotate toward the straight pipe loading position (110) or the collar position (130). A straight pipe feeding mechanism (200) is provided at the straight pipe feeding position (110). The straight pipe feeding mechanism (200) includes a storage base (210) and a top rod (220). The storage base (210) has a receiving groove (211) arranged horizontally and facing the turntable (150). The top rod (220) is movably disposed in the receiving groove (211) and can move relative to the storage base (210) along the receiving groove (211). When the turntable (150) drives the clamping mechanism (160) to rotate to face the straight pipe feeding position (110), the top rod (220) can push the straight pipe in the receiving groove (211) into the clamping groove (161) of the clamping mechanism (160). A collar mechanism (300) is provided at the collar position (130). The collar mechanism (300) includes a guide plate (310) and a pusher assembly. The guide plate (310) has a guide groove (311) arranged in the vertical direction. The lower end of the guide groove (311) is provided with a positioning groove (351) for vertical placement of the welding ring. The pusher assembly includes a pusher sleeve (320) and a core rod (330). The pusher sleeve (320) is slidably installed on the frame (100) and can move horizontally. The direction moves closer to or away from the turntable (150). The core rod (330) is slidably installed inside the pusher sleeve (320), and a first elastic element (321) is provided between the core rod (330) and the pusher sleeve (320). The core rod (330) has a collar portion (331) that can extend outside the pusher sleeve (320). The diameter of the collar portion (331) is smaller than the inner diameter of the welding ring and larger than the outer diameter of the straight tube. The inner diameter of the pusher sleeve (320) is larger than the outer diameter of the straight tube. When the pusher sleeve (320) drives the core rod (330) to move closer to the turntable (150) and pass through the positioning groove (351), the core rod (330) can be inserted into the welding ring in the positioning groove (351) and drive the welding ring to move synchronously closer to the turntable (150). When the turntable (150) drives the clamping mechanism (160) to move toward the collar position (130), the core rod (330) is coaxially arranged with the clamping groove (161), the core rod (330) can abut against the port of the straight tube inside the clamping mechanism (160), and the pusher sleeve (320) can push the welding ring on the outer periphery of the collar part (331) to the outer periphery of the straight tube.

2. The straight pipe collar machine according to claim 1, characterized in that, The frame (100) is also provided with a feeding position (140) located outside the turntable (150), the feeding position (140) is provided with a feeding hopper (420), the frame (100) is also provided with a feeding mechanism (400), the feeding mechanism (400) includes a feeding rod (410) movably mounted on the frame (100) and located above the turntable (150), the feeding rod (410) is arranged in a horizontal direction and can move relative to the frame (100) to approach or move away from the feeding hopper (420), when the turntable (150) drives the clamping mechanism (160) to rotate toward the feeding position (140), the feeding rod (410) is coaxially arranged with the clamping groove (161) of the clamping mechanism (160) and can push the straight tube in the clamping groove (161) outward into the feeding hopper (420).

3. The straight pipe collar machine according to claim 2, characterized in that, The frame (100) is also provided with a correction position (120) located outside the turntable (150). The straight pipe loading position (110), the correction position (120), the collar position (130) and the unloading position (140) are arranged sequentially at intervals along the circumference of the turntable (150). The straight pipe loading position (110) and the collar position (130) are arranged opposite each other in the front-back direction, and the correction position (120) and the unloading position (140) are arranged opposite each other in the left-right direction. The alignment position (120) is slidably mounted with an alignment mold base (430). The frame (100) is equipped with a first drive mechanism (460) that is drively connected to the alignment mold base (430). The alignment mold base (430) is equipped with a mounting rod (440) that extends horizontally toward the unloading position (140). The end of the mounting rod (440) away from the alignment mold base (430) is equipped with an unloading block (450). The unloading rod (410) is mounted on the unloading block (450). The first drive mechanism (460) can drive the alignment mold base (430) to move in the left and right direction and drive the unloading rod (410) to move closer to or away from the unloading hopper (420).

4. The straight pipe collar machine according to claim 3, characterized in that, The frame (100) is equipped with a fixed seat (470), and the turntable (150) is rotatably mounted on the outer periphery of the fixed seat (470). A positioning seat (480) is mounted on the fixed seat (470). The upper end of the positioning seat (480) is slidably mounted on the mounting rod (440) through a linear bearing. The positioning seat (480) is equipped with two positioning rods (481) arranged in the horizontal direction. One of the positioning rods (481) faces the straight pipe feeding position (110) and can abut against the end of the straight pipe during the straight pipe feeding process. The other positioning rod (481) faces the collar position (130) and can abut against the end of the straight pipe during the collar process.

5. The straight pipe collar machine according to claim 1, characterized in that, The straight pipe feeding mechanism (200) further includes a straight pipe vibrating plate (230) and a storage plate (240). The storage plate (240) is installed on the storage base (210). The storage plate (240) has a storage trough (241) arranged in the vertical direction for the straight pipe to be placed horizontally. The receiving groove (211) is located below the storage trough (241) and is connected to the storage trough (241). The vibrating channel of the straight pipe vibrating plate (230) is connected to the upper end of the storage trough (241).

6. The straight pipe collar machine according to claim 1, characterized in that, The collar mechanism (300) is located behind the turntable (150), and the collar mechanism (300) further includes: The slide (340) is slidably mounted on the frame (100) in the front-back direction, and the pusher sleeve (320) is mounted on the slide (340) and can move with the slide (340) to approach or move away from the turntable (150). The support (350) is slidably mounted on the guide plate (310) in the vertical direction, and the positioning groove (351) is opened at the upper end of the support (350); The linkage component is movably disposed between the slide (340) and the support (350). When the slide (340) moves closer to the guide plate (310), the slide (340) can drive the support (350) to move downward through the linkage component. When the slide (340) drives the pusher sleeve (320) to move forward and the core rod (330) is inserted into the welding ring in the positioning groove (351), when the slide (340) continues to move forward, it can drive the support (350) to move downward through the linkage component, so that the positioning groove (351) moves downward and disengages from the welding ring.

7. The straight pipe collar machine according to claim 6, characterized in that, The linkage component includes: A rotating seat (360) is fixedly installed on the frame (100) and located on one side of the slide (340); A pressure rod (370) is rotatably mounted on the rotating seat (360) and extends toward the support (350). A movable head (371) is mounted on the free end of the pressure rod (370). The movable head (371) is movably mounted on the support (350). The pressure rod (370) can rotate relative to the rotating seat (360) in the vertical direction and drive the support (350) to move in the vertical direction through the movable head (371). The second elastic element (372) is disposed between the pressure rod (370) and the frame (100); A pressure block (380) is installed on the pressure rod (370). The upper surface of the pressure block (380) has a first plane (381), a transition surface (382), and a second plane (383) connected sequentially from back to front. The transition surface (382) extends upward from back to front. The rolling part (341) is rotatably mounted on the slide (340) and rolls against the upper surface of the pressure block (380); When the slide (340) drives the pusher sleeve (320) and the core rod (330) to move forward and approach the positioning groove (351), the rolling part (341) can roll along the first plane (381); When the slide (340) drives the pusher sleeve (320) and the core rod (330) to continue moving forward and the core rod (330) is inserted forward into the welding ring in the positioning groove (351), the rolling part (341) can roll from the first plane (381) to the transition surface (382), and the pressure rod (370) can rotate downward relative to the rotating seat (360) and drive the support (350) to move downward through the movable head (371); When the slide (340) drives the pusher sleeve (320) and the core rod (330) to continue moving forward and approaching the turntable (150), the rolling part (341) can roll from the transition surface (382) to the second plane (383).

8. The straight pipe collar machine according to claim 7, characterized in that, The collar mechanism (300) further includes a stop assembly, the stop assembly comprising: A vertical plate (390) is mounted on the slide (340) in the vertical direction and located on the rear side of the guide plate (310). The vertical plate (390) is equipped with a guide rod (391) that extends in the front direction to the front side of the guide plate (310). The first stop seat (392) is installed on the guide rod (391) and located on the rear side of the guide plate (310). The first stop seat (392) is equipped with a first stop rod (393) extending forward toward the guide groove (311). The second stop seat (394) is installed on the guide rod (391) and located on the front side of the guide plate (310). The second stop seat (394) is equipped with a second stop rod (395) that extends rearward toward the guide groove (311). The second stop rod (395) is located above the first stop rod (393). When the slide (340) moves forward relative to the frame (100), the first stop bar (393) can move forward and insert into the guide groove (311), and the second stop bar (395) can move forward and disengage from the guide groove (311). When the slide (340) moves backward relative to the frame (100), the first stop bar (393) can move backward to disengage from the guide groove (311), and the second stop bar (395) can move backward to insert into the guide groove (311).

9. The straight pipe collar machine according to claim 1, characterized in that, The collar mechanism (300) also includes a welding ring vibrating plate, the vibrating material channel of which is connected to the upper end of the guide groove (311).

10. The straight pipe collar machine according to claim 1, characterized in that, The clamping mechanism (160) includes: Mounting base (162) is mounted on the turntable (150); A sliding rod (163) passes through the mounting base (162) and the turntable (150) in the vertical direction and extends upward to the top of the mounting base (162); The lower clamp (164) is installed on the mounting base (162). The upper surface of the lower clamp (164) is provided with an upward-opening lower half groove. The lower half groove is arranged horizontally along the radial direction of the turntable (150) and has lower guide portions at both ends. A pressure plate (165) is installed on the sliding rod (163); The upper clamp (166) is installed on the lower side of the pressure plate (165). The lower surface of the upper clamp (166) is provided with an upper half groove with an opening facing downward. The upper half groove is arranged horizontally along the radial direction of the turntable (150) and has upper guide parts at both ends. The third elastic element (167) is sleeved on the sliding rod (163). The upper end of the third elastic element (167) is connected to or abuts against the mounting base (162), and the lower end of the third elastic element (167) is connected to or abuts against the side wall of the sliding rod (163). The elastic force of the third elastic element (167) drives the sliding rod (163) to drive the lower clamp (164) to press down against the upper clamp (166), so that the upper half groove and the lower half groove surround to form the clamping groove (161).

Images