Heat exchanger stainless steel tube beveling device

Abstract

The invention discloses a heat exchanger stainless steel tube beveling device, and relates to the technical field of cutting. The supporting plates are fixedly connected to the rack, and each supporting plate is provided with a plurality of supporting grooves used for supporting the stainless steel pipes; the feeding mechanism comprises a feeding frame which is arranged on the rack and does rectangular reciprocating motion, and two feeding plates are fixedly connected to the feeding frame; the two first clamping mechanisms are used for clamping the stainless steel pipe; a cutting mechanism; stainless steel pipes are intermittently conveyed through the reciprocating motion process of the feeding plate, so that the stainless steel pipes are sequentially located at the cutting station, the clamping mechanism is passively driven through the motion power of the feeding plate to clamp the stainless steel pipes located at the cutting station, and meanwhile, the saw blade is driven to gradually and vertically move downwards; and the clamped steel pipe is cut, the cut steel pipe is conveyed and discharged by the feeding plate, and the problem that the cutting efficiency is low due to manual operation is solved.

Description

Technical Field

[0001] The invention relates to the technical field of cutting, in particular to a heat exchanger stainless steel pipe beveling device. Background Art

[0002] Heat exchanger stainless steel pipe refers to the stainless steel pipe used in the heat exchanger, which is mainly used to transfer heat between two fluids at different temperatures. Stainless steel heat exchanger tubes are widely used in the production of chemical, pharmaceutical, food, pharmaceutical and other industries and the processing and manufacturing of related equipment due to their excellent corrosion resistance and high temperature resistance. In some compact heat exchangers, the pipes need to be connected at a specific angle. Beveling can meet this space limitation and make the pipes easier to install and connect; beveling makes the pipe mouth form a certain angle, reducing the resistance of the fluid when entering or leaving the pipe, thereby optimizing the flow state of the fluid and improving the heat exchange efficiency; at the same time, the beveled pipe mouth can reduce the turbulence of the fluid at the inlet and outlet of the pipe, reduce the pressure drop, and improve the overall heat exchange performance.

[0003] For example, the publication number is CN219324814U, the publication date is July 11, 2023, and the name is: "A heat exchanger stainless steel pipe bevel cutting device", including a bottom plate, a mounting seat is installed on the top of the bottom plate, a translation assembly is provided in the inner cavity of the mounting seat, a movable plate is connected to the top of the translation assembly, a U-shaped trough body is installed on the left side of the movable plate, a lower clamping seat is installed on the inner bottom wall of the U-shaped trough body, a screw is screwed on the top of the U-shaped trough body, a turntable is fixed on the top of the screw, and the bottom of the screw is connected to the upper clamping seat through a bearing, and guide rods are installed at the four corners of the top of the upper clamping seat. This application facilitates the fixing of one end of the stainless steel pipe through the coordinated arrangement of the lower clamping seat, the upper clamping seat, the guide rod, the U-shaped trough body, the screw and the movable plate. After the stainless steel pipe is cut once, the remaining stainless steel pipe is continued to be moved to the cutting knife for cutting through the translation assembly until the stainless steel pipe is cut as required. The cutting is simple and convenient, and the work efficiency is high.

[0004] In the prior art such as that including the above-mentioned patent, each time a stainless steel pipe is beveled, it is usually necessary to manually place the stainless steel pipe on the cutting table and clamp the stainless steel pipe through a clamping mechanism. After the cutting is completed, the clamping mechanism needs to be released and the cut stainless steel pipe needs to be removed for unloading. This results in low efficiency of the bevel cutting operation. Summary of the invention

[0005] The object of the present invention is to provide a heat exchanger stainless steel tube beveling device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a heat exchanger stainless steel tube beveling device, comprising:

[0007] frame;

[0008] A plurality of support plates, which are fixedly connected to the frame, each support plate having a plurality of support grooves for supporting the stainless steel pipe;

[0009] The feeding mechanism comprises a feeding frame arranged on a frame and performing rectangular reciprocating motion, two feeding plates are fixedly connected to the feeding frame, and a plurality of feeding slots are provided on each feeding plate;

[0010] Two first clamping mechanisms, which are respectively arranged on both sides of the frame and are used to clamp the stainless steel pipe;

[0011] A cutting mechanism, comprising a saw blade vertically slidably connected to a frame;

[0012] The feeding frame movement includes feeding stroke, clamping stroke, cutting stroke and unloading stroke in sequence;

[0013] Feeding stroke: intermittently moving the stainless steel pipe along the first direction from one supporting groove to another adjacent supporting groove for conveying;

[0014] Clamping stroke: driving the two first clamping mechanisms to clamp the two ends of the stainless steel pipe to be cut respectively;

[0015] Cutting stroke: The saw blade moves vertically downward to cut the stainless steel pipe to be cut;

[0016] Unloading stroke: remove the cut stainless steel pipe from the support plate.

[0017] Furthermore, feeding assemblies corresponding to the two feeding plates are respectively arranged on both sides of the feeding rack, and each feeding assembly includes two levers rotatably connected to the frame, one of the levers is fixedly connected to a turntable, and the two levers are rotatably connected to their corresponding feeding plates.

[0018] Furthermore, the shifting rod is eccentrically rotationally connected to the feeding plate.

[0019] Furthermore, the first clamping mechanism includes a first gear rotatably connected to the frame, two clamping guide rails are fixedly connected to the first gear, two clamping grooves are opened on the frame, clamping rods are slidably connected in the two clamping grooves, the two clamping rods are respectively and one by one slidingly abutted against the two clamping guide rails, the two clamping rods are fixedly connected to the first clamping plates, the two first clamping plates are abutted against the stainless steel pipe, and a plurality of teeth are fixedly connected to the turntable, and each tooth is respectively meshed with the first gear.

[0020] Furthermore, the clamping guide rail is composed of a loosening section and a retaining section.

[0021] Furthermore, the cutting mechanism also includes a lifting rod vertically slidably connected to the frame, the saw blade is rotatably connected to the lifting rod, an abutment rod is fixedly connected to the lifting rod, a cutting groove is opened on the turntable, and the abutment rod is slidably abutted against the cutting groove.

[0022] Furthermore, the cutting groove is composed of an arc section, a descending section and an ascending section connected to each other.

[0023] Furthermore, it also includes a second clamping mechanism, which is arranged in the support groove at the end of each support plate. The second clamping mechanism includes a gravity plate vertically slidably connected in the support groove, a spring is arranged between the gravity plate and the support plate, and abutment grooves are opened at both ends of the gravity plate. Two second clamping plates are horizontally slidably connected to the support plate, and cross bars are fixedly connected to the two second clamping plates. The two cross bars are respectively slidably abutted with the two abutment grooves correspondingly.

[0024] Furthermore, it also includes a grinding mechanism, which includes a first pulley fixedly connected to the turntable, a second pulley rotatably connected to the frame, a belt is arranged between the first pulley and the second pulley, a grinding disc is fixedly connected to the second pulley, a first incomplete gear ring and a second incomplete gear ring are fixedly connected to the grinding disc, a second gear is rotatably connected to the frame, the second gear is respectively meshed with the first incomplete gear ring and the second incomplete gear ring, a sleeve is fixedly connected to the second gear, a first elastic telescopic rod is sleeved in the sleeve, the first elastic telescopic rod is slidably and rotatably connected to the frame, the first elastic telescopic rod is fixedly connected to the second elastic telescopic rod, an extension groove is provided on the sleeve, the second elastic telescopic rod is slidably abutted against the extension groove, a fixing rod is fixedly connected to the first elastic telescopic rod, and a grinding roller is fixedly connected to the fixing rod.

[0025] Furthermore, it also includes a limit member fixedly connected to the frame, the limit member is provided with a slide groove, the slide groove is connected to the rotating groove, the second elastic telescopic rod is respectively abutted and matched with the slide groove and the rotating groove, a one-way limit plate is fixedly connected in the rotating groove, and the end of the second elastic telescopic rod is slidably abutted and matched with the one-way limit plate.

[0026] In the above technical solution, the present invention provides a heat exchanger stainless steel tube beveling device:

[0027] 1. Through the reciprocating motion of the feeding plate, the stainless steel pipes are intermittently transported so that each stainless steel pipe is located at the cutting station in turn. The power of the feeding plate movement passively drives the clamping mechanism to clamp the stainless steel pipe that is already at the cutting station. At the same time, the saw blade is driven to move vertically downward gradually to cut the clamped steel pipe. After cutting, the steel pipe is transported by the feeding plate for unloading, avoiding the problem of low cutting efficiency caused by manual operation.

[0028] 2. The cut stainless steel pipe is transported to the grinding station through the feeding mechanism. The turntable drives the sleeve to rotate forward and reversely through the cooperation of the first incomplete gear ring, the second incomplete gear ring and the second gear. When the sleeve rotates forward, it will first drive the grinding roller to translate horizontally and abut against the incision of the stainless steel pipe, and then drive the grinding roller to rotate to grind the incision. In addition, during the rotational grinding process, the first elastic telescopic rod can adaptively adjust its length by abutting against the incision; when the sleeve reverses, the cooperation of the second elastic telescopic rod and the limiter can drive the first elastic telescopic rod to shrink into the inside of the sleeve, so as to avoid the polished stainless steel pipe, thereby avoiding the interference between the stainless steel pipe and the grinding mechanism during the subsequent feeding and unloading of the stainless steel pipe by the feeding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0030] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the overall structure from another perspective provided by an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of a structure from a top-down perspective provided by an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of the structure of a feeding mechanism provided in an embodiment of the present invention;

[0034] Figure 5 A schematic diagram of the cross-sectional structure of a grinding disc provided in an embodiment of the present invention;

[0035] Figure 6 A schematic diagram of the structure of a turntable, a first clamping mechanism, and a cutting mechanism provided in an embodiment of the present invention;

[0036] Figure 7 A schematic diagram of a local enlarged structure of location A provided in an embodiment of the present invention;

[0037] Figure 8 A schematic diagram of the structure of a second clamping mechanism provided in an embodiment of the present invention;

[0038] Fig. 9 A schematic diagram of a grinding mechanism and a stainless steel pipe structure provided in an embodiment of the present invention;

[0039] Fig.10This is a schematic diagram of the grinding mechanism structure provided in an embodiment of the present invention.

[0040] Fig.11 A schematic diagram of the cross-sectional structure of a limiter provided in an embodiment of the present invention.

[0041] Description of reference numerals:

[0042] 1. Frame; 11. Clamping slot; 2. Support plate; 21. Support slot; 3. Feeding mechanism; 31. Feeding frame; 32. Feeding plate; 321. Feeding slot; 33. Turntable; 331. Arc section; 332. Descending section; 333. Ascending section; 34. Push rod; 4. First clamping mechanism; 41. First gear; 42. Clamping guide rail; 421. Unclamping section; 422. Holding section; 43. Clamping rod; 44. First clamping plate; 45. Tooth; 5. Cutting mechanism; 51. Lifting rod; 52. Saw blade; 53. Abutting rod; 6. Second clamping mechanism Mechanism; 61. gravity plate; 62. spring; 63. abutment groove; 64. second clamping plate; 65. cross bar; 7. grinding mechanism; 71. first pulley; 72. second pulley; 73. belt; 74. grinding disc; 75. first incomplete gear ring; 76. second incomplete gear ring; 77. second gear; 78. sleeve; 781. extension groove; 79. first elastic telescopic rod; 710. second elastic telescopic rod; 711. fixing rod; 712. grinding roller; 8. limiting member; 81. slide groove; 82. rotating groove; 83. one-way limiting plate. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] See also Figure 1-11 A heat exchanger stainless steel tube beveling device provided in an embodiment of the present invention comprises: a frame 1; a plurality of support plates 2, which are fixedly connected to the frame 1, and each support plate 2 has a plurality of support grooves 21 for supporting the stainless steel tube.

[0045] Preferably, if Figure 1 , 2 As shown in FIG. 3 , one end of each support plate 2 close to the cutting mechanism 5 has an inclined slope, and the slope is used for unloading the cut stainless steel pipe; specifically, after the stainless steel pipe is cut, the feeding mechanism 3 conveys the stainless steel pipe to the slope, and the stainless steel pipe rolls down the slope, thereby completing the unloading.

[0046] In the embodiment of the present invention: the feeding mechanism 3 includes a feeding rack 31 arranged on the frame 1 and performing rectangular reciprocating motion, two feeding plates 32 are fixedly connected to the feeding rack 31, and each feeding plate 32 is provided with a plurality of feeding slots 321.

[0047] Specifically, feeding assemblies corresponding to the two feeding plates 32 are respectively arranged on both sides of the feeding rack 31, and each feeding assembly includes two levers 34 rotatably connected to the frame 1, one of the levers 34 is fixedly connected to a turntable 33, and the two levers 34 are respectively rotatably connected to their corresponding feeding plates 32.

[0048] In the embodiment of the present invention, a driving motor (not shown in the figure) is also included. The driving motor is coaxially fixedly connected to any turntable 33, and the turntable 33 is driven by the power of the driving motor.

[0049] It can be understood that: since the two feeding plates 32 are fixedly connected by the feeding frame 31, and the two ends of each feeding plate 32 are eccentrically connected to the two levers 34, and the two levers 34 have the same rotation speed, the two levers 34 can simultaneously limit the feeding plates 32, so that the feeding plates 32 can stably perform rectangular reciprocating motion to transport the stainless steel pipe. (Rectangular reciprocating motion means: moving in the first direction to approach the steel pipe to be transported, moving vertically upward to lift the stainless steel pipe, moving in the second direction toward the cutting station, and vertically downward to place the stainless steel pipe in the support groove 21).

[0050] In the embodiment of the present invention: two first clamping mechanisms 4, which are respectively arranged on both sides of the frame 1, are used to clamp the stainless steel pipe; specifically, the first clamping mechanism 4 includes a first gear 41 rotatably connected to the frame 1, and two clamping guide rails 42 are fixedly connected to the first gear 41, and two clamping grooves 11 are provided on the frame 1, and clamping rods 43 are slidably connected in the two clamping grooves 11, and the two clamping rods 43 are respectively and one by one correspondingly slidably abutted with the two clamping guide rails 42, and the two clamping rods 43 are fixedly connected with a first clamping plate 44, and the two first clamping plates 44 are both abutted against the stainless steel pipe, and a plurality of teeth 45 are fixedly connected to the turntable 33, and each tooth 45 is respectively meshed with the first gear 41; more specifically, the clamping guide rail 42 is composed of a loose clamping section 421 and a holding section 422; wherein the holding section 422 is coaxially opened around the axis of the first gear 41, that is, the shape of the holding section 422 is arc-shaped.

[0051] Preferably, since the clamping rod 43 is circular, in order to ensure that the clamping rod 43 can stably slide in the clamping groove 11 without rotating, so that the first clamping plate 44 can stably clamp the stainless steel pipe, a slider is also provided on the clamping rod 43, and the slider is slidably connected in the clamping groove 11. As for the shape of the slider, there is no limitation as long as it can prevent the clamping rod 43 from rotating.

[0052] Further preferably, a torsion spring is provided between the first gear 41 and the frame 1 .

[0053] The cutting mechanism 5 includes a saw blade 52 vertically slidably connected to the frame 1; the cutting mechanism 5 also includes a lifting rod 51 vertically slidably connected to the frame 1, the saw blade 52 is rotatably connected to the lifting rod 51, the lifting rod 51 is fixedly connected with an abutment rod 53, a cutting groove is opened on the turntable 33, and the abutment rod 53 is slidably abutted with the cutting groove; specifically, the cutting groove is composed of an arc segment 331, a descending segment 332 and an ascending segment 333.

[0054] The first clamping mechanism 4 and the cutting mechanism 5 cooperate with each other, and their working principles are as follows: Figure 5 , 6 As shown, when the turntable 33 rotates, the teeth 45 mesh with the first gear 41, and two strokes can be completed within the meshing time, a clamping stroke and a holding stroke; clamping stroke: when the first gear 41 is located at the middle position of each tooth 45 (i.e., when it is meshed to the half position), due to the meshing relationship between the first gear 41 and the teeth 45, the first gear 41 and the two clamping guide rails 42 have been driven to rotate, and through the cooperation of the clamping guide rail 42, the clamping rod 43, and the clamping groove 11, the clamping rod 43 slides from one end of the clamping groove 11 to the other end, and the clamping rod 43 slides from the loose clamping section 421 to the junction of the loose clamping section 421 and the holding section 422; at the same time, refer to Figure 6 , since the first gear 41 is half-engaged with the teeth 45, at this time, the abutment rod 53 is also located in the middle position of each tooth 45 (i.e., the junction of the arc segment 331 and the descending segment 332, and is about to slide into the descending segment 332); holding stroke: immediately above, as the turntable 33 continues to rotate, the teeth 45 continue to drive the clamping guide rail 42 to rotate by engaging with the first gear 41. At this time, the clamping rod 43 completely slides into the holding segment 422. Since the holding segment 422 is arc-shaped, even if the turntable 33 continues to rotate, the two first clamping plates 44 always maintain a clamping state that fits the stainless steel pipe; as the turntable 33 continues to rotate, on the other hand, the abutment rod 53 slides into the descending segment 332, approaches the axial position of the turntable 33, drives the saw blade 52 to continue to move vertically downward, and cuts the clamped stainless steel pipe.

[0055] Next to the above, when the cutting is completed, the turntable 33 continues to rotate. At this time, on the one hand, each tooth 45 is disengaged from the first gear 41. Since a torsion spring is arranged between the first gear 41 and the frame 1, the first gear 41 is reversed and reset under the elastic force of the torsion spring to restore the elastic deformation, so that the entire first clamping mechanism 4 is reset to the initial state (i.e., the clamping of the stainless steel pipe that has been cut is released); on the other hand, the abutment rod 53 slides from the descending section 332 into the ascending section 333, and moves away from the axial direction of the turntable 33, driving the saw blade 52 to move vertically upward and reset.

[0056] It can be understood that: following the above principle, when the turntable 33 continues to rotate so that the abutment rod 53 slides into the arc segment 331, the first clamping mechanism 4 and the cutting mechanism 5 remain stationary. During this process, the rotation of the turntable 33 transports each stainless steel pipe, so that the stainless steel pipe that has just been cut is transported to an adjacent support groove 21, and a second clamping mechanism 6 is provided in the support groove 21 to clamp the cut steel pipe for the second time, thereby facilitating the subsequent grinding operation.

[0057] In an embodiment of the present invention: it also includes a second clamping mechanism 6, which is arranged in the support groove 21 at the end of each support plate 2, and the second clamping mechanism 6 includes a gravity plate 61 vertically slidably connected in the support groove 21, and a spring 62 is arranged between the gravity plate 61 and the support plate 2; specifically, the spring 62 is a compression spring; abutment grooves 63 are provided at both ends of the gravity plate 61, and two second clamping plates 64 are laterally slidably connected to the support plate 2, and cross bars 65 are fixedly connected to the two second clamping plates 64, and the two cross bars 65 are respectively and one by one correspondingly slidably abutted with the two abutment grooves 63.

[0058] It can be understood that after the cut stainless steel pipe is placed in the support groove 21 , the second clamping mechanism 6 is passively driven to clamp the stainless steel pipe under the action of the gravity of the stainless steel pipe.

[0059] Preferably, friction pads are fixedly connected to the sides of the two second clamping plates 64 that are close to each other. The friction pads abut against the stainless steel pipe, thereby preventing the stainless steel pipe from rotating during the grinding process.

[0060] The working principle of the second clamping mechanism 6 is as follows: after the cut stainless steel pipe is transported to the support groove 21 by the feeding mechanism 3, the stainless steel pipe abuts against the gravity plate 61, and under the action of the gravity of the stainless steel pipe, the gravity plate 61 moves vertically downward, squeezing the spring 62, causing the spring 62 to undergo elastic deformation and shrink. At the same time, during the downward movement of the gravity plate 61, the two second clamping plates 64 are driven to approach each other through the cooperation of the abutting groove 63 and the cross bar 65, thereby completing the clamping operation of the stainless steel pipe; after the feeding mechanism 3 transports the stainless steel pipe out of the support groove 21, the second clamping mechanism 6 automatically resets during the process of the spring 62 restoring its elastic deformation.

[0061] The machine also includes a grinding mechanism 7, which includes a first pulley 71 fixedly connected to the turntable 33, a second pulley 72 rotatably connected to the frame 1, a belt 73 is provided between the first pulley 71 and the second pulley 72, a grinding disc 74 is fixedly connected to the second pulley 72, a first incomplete gear ring 75 and a second incomplete gear ring 76 are fixedly connected to the grinding disc 74, a second gear 77 is rotatably connected to the frame 1, and the second gear 77 is respectively meshed with the first incomplete gear ring 75 and the second incomplete gear ring 76. A sleeve 78 is fixedly connected to the upper portion, a first elastic telescopic rod 79 is sleeved in the sleeve 78, the first elastic telescopic rod 79 is fixedly connected to the frame 1, a second elastic telescopic rod 710 is fixedly connected to the first elastic telescopic rod 79, an extension groove 781 is provided on the sleeve 78, the second elastic telescopic rod 710 is slidably abutted against the extension groove 781, a fixing rod 711 is fixedly connected to the first elastic telescopic rod 79, and a grinding roller 712 is fixedly connected to the fixing rod 711; specifically, the extension groove 781 is obliquely provided on the sleeve 78.

[0062] In another embodiment of the present invention: the grinding roller 712 can also be rotatably connected to the fixed rod 711, and a driving source is provided for driving the grinding roller 712 to rotate, so as to achieve a better grinding effect.

[0063] In an embodiment of the present invention, Fig.10 As shown, a notch is rotatably formed on the outer wall of the grinding roller 712 with the axis of the grinding roller 712 as the center, and the notch enables the grinding roller 712 to abut against the inner wall, outer wall and cut surface of the stainless steel pipe respectively, thereby ensuring the grinding effect.

[0064] Understandable, such as Figure 5 , 9 As shown, the distribution of the first incomplete gear ring 75 occupies three quarters of the turntable 33, and the second incomplete gear ring 76 occupies one quarter. The first incomplete gear ring 75 and the second incomplete gear ring 76 are respectively engaged with the second gear 77, so that the second gear 77 can be driven to rotate forward and reversely; when the first incomplete gear ring 75 is engaged with the second gear 77, the engagement time is relatively long, so that the second gear 77 rotates for a relatively long time, and the rotation of the second gear 77 can fully polish the incision of the stainless steel pipe after the cutting is completed; the time between the second incomplete gear ring 76 and the second gear 77 is relatively short, and its purpose is to drive the second gear 77 to rotate in the opposite direction and reset.

[0065] It is worth mentioning that: the first elastic telescopic rod 79 and the second elastic telescopic rod 710 are existing technologies, which include a base and an end, a plurality of telescopic joints are arranged between the base and the end, and an elastic member is arranged between the base and the end, and the first elastic telescopic rod 79 is in an extended state through the elastic force of the elastic member; specifically, the second elastic telescopic rod 710 is fixedly connected to the base of the first elastic telescopic rod 79.

[0066] It also includes a limit member 8 fixedly connected to the frame 1, a slide groove 81 is provided on the limit member 8, the slide groove 81 is connected to a rotating groove 82, the second elastic telescopic rod 710 is respectively abutted against the slide groove 81 and the rotating groove 82, a one-way limit plate 83 is fixedly connected in the rotating groove 82, and the end of the second elastic telescopic rod 710 is slidably abutted against the one-way limit plate 83.

[0067] Specifically, the purpose of the limiting member 8 is to enable the first elastic telescopic rod 79 to slide and rotate on the frame 1; the rotation groove 82 is opened in a circle, the height of the one-way limiting plate 83 is less than the depth of the rotation groove 82, and the one-way limiting plate 83 has an abutting plane and a limiting plane, such as Fig.11 As shown, when the second elastic telescopic rod 710 rotates along the first direction with the axis of the sleeve 78 as the center, the second elastic telescopic rod 710 will abut against the abutment plane of the one-way limiting plate 83, thereby driving the length of the second elastic telescopic rod 710 to shorten and smoothly pass through the one-way limiting plate 83; and when the second elastic telescopic rod 710 rotates along the second direction, it will abut against the limiting plane of the one-way limiting plate 83, and through the abutment and limiting effect, the second elastic telescopic rod 710 slides from the rotating groove 82 into the sliding groove 81.

[0068] And, if Fig.11 As shown, it should be noted that the limiting plane of the one-way limiting plate 83 coincides with one of the side walls of the sliding groove 81 .

[0069] The specific principle of the grinding mechanism 7 and the limit member 8 is: the turntable 33 drives the first pulley 71 to rotate synchronously, the first pulley 71 transmits power to the second pulley 72 through the belt 73, and the second pulley 72 drives the grinding disc 74 to rotate. During the rotation of the grinding disc 74, the first incomplete gear ring 75 is firstly engaged with the second gear 77, and the second gear 77 drives the sleeve 78 to rotate synchronously along the first direction. During the rotation of the sleeve along the first direction 78, it has an extension stroke and a grinding stroke.

[0070] During the extension stroke: through the cooperation between the extension groove 781 and the second elastic telescopic rod 710, and the abutment between the second elastic telescopic rod 710 and the slide groove 81, the second elastic telescopic rod 710 slides in the slide groove 81 and slides into the rotating groove 82, so that the first elastic telescopic rod 79 is pushed outward from the inside of the sleeve 78, thereby driving the grinding roller 712 to approach the position of the stainless steel pipe and abut against the incision of the stainless steel pipe. After the abutment occurs, the length of the first elastic telescopic rod 79 becomes shorter due to the abutment.

[0071] During the grinding stroke: the second gear 77 continues to drive the sleeve 78 to rotate synchronously. At this time, the second elastic telescopic rod 710 is already located in the extension groove 781 near the end of the grinding roller 712, and the second elastic telescopic rod 710 is also located in the rotation groove 82. Therefore, the sleeve 78 will drive the second elastic telescopic rod 710 to rotate synchronously in the rotation groove 82. Since the incision of the stainless steel tube is inclined, under the action of the first elastic telescopic rod 79's own elastic force, the first elastic telescopic rod 79 will drive the grinding roller 712 at its end to adaptively extend and retract to adapt to the incision of the stainless steel tube.

[0072] When the second incomplete gear ring 76 is meshed with the second gear 77, the second gear 77 is driven to drive the sleeve 78 to rotate in the second direction. The sleeve 78 has a retraction stroke during its rotation; retraction stroke: the sleeve 78 rotates in the second direction and drives the second elastic telescopic rod 710 to rotate in the opposite direction in the rotation groove 82. During the rotation, the second elastic telescopic rod 710 will contact the limiting plane of the one-way limiting plate 83. At this time, the second elastic telescopic rod 710 can no longer continue to rotate in the rotation groove 82 through the limiting effect of the limiting plane on the second elastic telescopic rod 710. At this time, the rotation of the sleeve 78 will drive the second elastic telescopic rod 710 to slide from the rotation groove 82 into the sliding groove 81, thereby driving the first elastic telescopic rod 79 to retract into the sleeve 78 to complete the reset. By making the first elastic telescopic rod 79 shrink into the sleeve 78, the stainless steel pipe is avoided, so as to avoid the stainless steel pipe from abutting against the grinding roller 712 to form interference during the subsequent feeding process.

[0073] The feeding frame 31 has a feeding stroke, a clamping stroke, a cutting stroke, and a material unloading stroke in sequence.

[0074] Feeding stroke: intermittently moving the stainless steel pipe along the first direction from one supporting groove 21 to another adjacent supporting groove 21 for conveying;

[0075] Clamping stroke: driving the two first clamping mechanisms 4 to clamp the two ends of the stainless steel pipe to be cut respectively;

[0076] Cutting stroke: the saw blade 52 moves vertically downward to cut the stainless steel pipe to be cut;

[0077] Unloading stroke: remove the cut stainless steel pipe from the support plate 2.

[0078] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heat exchanger stainless steel tube beveling device, characterized in that: include: Rack (1); A plurality of support plates (2) fixedly connected to the frame (1), each support plate (2) having a plurality of support grooves (21) for supporting the stainless steel pipe; A feeding mechanism (3) comprises a feeding frame (31) arranged on the frame (1) and performing rectangular reciprocating motion, two feeding plates (32) being fixedly connected to the feeding frame (31), and each feeding plate (32) being provided with a plurality of feeding slots (321); Two first clamping mechanisms (4), which are respectively arranged on two sides of the frame (1) and are used to clamp the stainless steel pipe; A cutting mechanism (5), comprising a saw blade (52) vertically slidably connected to the frame (1); The feeding frame (31) has a feeding stroke, a clamping stroke, a cutting stroke, and a material unloading stroke in sequence; Feeding stroke: intermittently moving the stainless steel pipe along a first direction from one supporting groove (21) to another adjacent supporting groove (21) for conveying; Clamping stroke: driving the two first clamping mechanisms (4) to respectively clamp the two ends of the stainless steel pipe to be cut; Cutting stroke: the saw blade (52) moves vertically downward to cut the stainless steel pipe to be cut; Unloading stroke: remove the cut stainless steel pipe from the support plate (2).

2. A heat exchanger stainless steel tube beveling device according to claim 1, characterized in that: Feeding assemblies corresponding to the two feeding plates (32) are respectively arranged on both sides of the feeding frame (31), and each feeding assembly comprises two shifting rods (34) rotatably connected to the frame (1), wherein a rotating disk (33) is fixedly connected to one of the shifting rods (34), and the two shifting rods (34) are respectively rotatably connected to the corresponding feeding plates (32).

3. A heat exchanger stainless steel tube beveling device according to claim 2, characterized in that: The lever (34) is eccentrically rotationally connected to the feeding plate (32).

4. A heat exchanger stainless steel tube beveling device according to claim 2, characterized in that: The first clamping mechanism (4) comprises a first gear (41) rotatably connected to the frame (1), two clamping guide rails (42) are fixedly connected to the first gear (41), two clamping grooves (11) are provided on the frame (1), clamping rods (43) are slidably connected in the two clamping grooves (11), the two clamping rods (43) are respectively and one-to-one correspondingly slidably abutted with the two clamping guide rails (42), the two clamping rods (43) are respectively and fixedly connected to the first clamping plates (44), the two first clamping plates (44) are both abutted and matched with the stainless steel pipe, and a plurality of teeth (45) are fixedly connected to the rotating disk (33), and each tooth (45) is respectively meshed and matched with the first gear (41).

5. A heat exchanger stainless steel tube beveling device according to claim 4, characterized in that: The clamping guide rail (42) is composed of a clamping release section (421) and a retaining section (422).

6. A heat exchanger stainless steel tube beveling device according to claim 4, characterized in that: The cutting mechanism (5) also includes a lifting rod (51) vertically slidably connected to the frame (1), the saw blade (52) is rotatably connected to the lifting rod (51), an abutment rod (53) is fixedly connected to the lifting rod (51), a cutting groove is provided on the rotating disk (33), and the abutment rod (53) is slidably abutted against the cutting groove.

7. A heat exchanger stainless steel tube beveling device according to claim 6, characterized in that: The cutting groove is composed of an arc section (331), a descending section (332) and an ascending section (333) which are connected.

8. The heat exchanger stainless steel tube beveling device according to claim 1, characterized in that: The second clamping mechanism (6) is arranged in the support groove (21) at the end of each support plate (2). The second clamping mechanism (6) includes a gravity plate (61) vertically slidably connected in the support groove (21). A spring (62) is arranged between the gravity plate (61) and the support plate (2). Both ends of the gravity plate (61) are provided with abutment grooves (63). Two second clamping plates (64) are horizontally slidably connected to the support plate (2). Both second clamping plates (64) are fixedly connected with cross bars (65). The two cross bars (65) are respectively slidably abutted with the two abutment grooves (63) in a one-to-one correspondence.

9. The heat exchanger stainless steel tube beveling device according to claim 4, characterized in that: The machine also comprises a grinding mechanism (7), which comprises a first pulley (71) fixedly connected to the rotating disk (33); a second pulley (72) rotatably connected to the frame (1); a belt (73) is arranged between the first pulley (71) and the second pulley (72); a grinding disc (74) is fixedly connected to the second pulley (72); a first incomplete gear ring (75) and a second incomplete gear ring (76) are fixedly connected to the grinding disc (74); a second gear (77) is rotatably connected to the frame (1); the second gear (77) is respectively connected to the first incomplete gear ring (75) and the second incomplete gear ring (76). The second gear (77) is meshed and connected with a sleeve (78), a first elastic telescopic rod (79) is sleeved in the sleeve (78), the first elastic telescopic rod (79) is slidably and rotatably connected to the frame (1), the first elastic telescopic rod (79) is fixedly connected with a second elastic telescopic rod (710), an extension groove (781) is provided on the sleeve (78), the second elastic telescopic rod (710) is slidably abutted against the extension groove (781), the first elastic telescopic rod (79) is fixedly connected with a fixing rod (711), and the fixing rod (711) is fixedly connected with a grinding roller (712).

10. A heat exchanger stainless steel tube beveling device according to claim 9, characterized in that: The invention also comprises a limiting member (8) fixedly connected to the frame (1), wherein a slide groove (81) is provided on the limiting member (8), the slide groove (81) is connected to a rotation groove (82), the second elastic telescopic rod (710) is respectively abutted with the slide groove (81) and the rotation groove (82), a one-way limiting plate (83) is fixedly connected in the rotation groove (82), and the end of the second elastic telescopic rod (710) is slidably abutted with the one-way limiting plate (83).

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