A heat exchanger stainless steel tube beveling device

Abstract

The application discloses a heat exchanger stainless steel pipe beveling device and relates to the technical field of cutting. The heat exchanger stainless steel pipe beveling device comprises a rack, a plurality of support plates fixedly connected to the rack, a plurality of support grooves for supporting stainless steel pipes on each support plate, a feeding mechanism comprising a feeding frame arranged on the rack and performing rectangular reciprocating motion, two feeding plates fixedly connected to the feeding frame, two first clamping mechanisms for clamping the stainless steel pipes, and a cutting mechanism. Through the reciprocating motion of the feeding plates, the stainless steel pipes are intermittently fed, so that each stainless steel pipe is sequentially located at a cutting station, and the clamping mechanism is passively driven to clamp the stainless steel pipe located at the cutting station through the power of the feeding plate motion. Meanwhile, the saw blade is gradually vertically and downwardly moved to cut the clamped steel pipe. The cut steel pipe is fed and discharged by the feeding plate, so that the problem of low cutting efficiency caused by manual operation is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the cutting technical field, in particular to a heat exchanger stainless steel pipe beveling device. BACKGROUND

[0002] The heat exchanger stainless steel pipe refers to a pipe made of stainless steel used in a heat exchanger, which is mainly used for heat transfer between two fluids of different temperatures. The stainless steel heat exchange pipe is widely used in the production of chemical industry, medicine, food, pharmaceutical industry and the processing and manufacturing of related equipment due to its excellent corrosion resistance and high temperature resistance. In some compact heat exchangers, the pipe needs to be connected at a specific angle, and beveling can meet this space limitation, making the pipe easier to install and connect; beveling forms a certain angle for the pipe opening, reducing the resistance when the fluid enters or exits the pipe, thereby optimizing the flow state of the fluid and improving the heat exchange efficiency; at the same time, the beveled pipe opening can reduce the turbulence phenomenon 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 patent with the publication number CN219324814U and the publication date of July 11, 2023, and the name of the heat exchanger stainless steel pipe beveling device, which comprises a bottom plate, a mounting seat is installed on the top of the bottom plate, a translation assembly is arranged in the inner cavity of the mounting seat, a movable plate is connected to the top of the translation assembly, a U-shaped groove 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 groove body, a screw rod is screwed on the top of the U-shaped groove body, a rotating disc is fixed on the top of the screw rod, and an upper clamping seat is connected to the bottom of the screw rod through a bearing. The lower clamping seat, the upper clamping seat, the guide rod, the U-shaped groove body, the screw rod and the movable plate are cooperatively arranged, so that one end of the stainless steel pipe can be fixed conveniently. After the stainless steel pipe is cut once, the remaining stainless steel pipe is moved to the cutting knife for cutting by the translation assembly until the stainless steel pipe is cut according to the requirements. The cutting is simple and convenient, and the working efficiency is high.

[0004] In the prior art such as the above-mentioned patent, each pair of stainless steel pipes needs to be placed on the cutting table manually during beveling operation, and the stainless steel pipes are clamped by the clamping mechanism. After cutting, the clamping needs to be released, and the cut stainless steel pipes need to be taken down for discharging operation. As a result, the beveling operation has low working efficiency. SUMMARY

[0005] The purpose of the present application is to provide a heat exchanger stainless steel pipe beveling device to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a heat exchanger stainless steel pipe beveling device, comprising:

[0007] a rack;

[0008] a plurality of support plates fixedly connected to the rack, each of the support plates having a plurality of support grooves for supporting the stainless steel pipe;

[0009] a feeding mechanism comprising a feeding frame arranged on the rack and performing a rectangular reciprocating motion, the feeding frame being fixedly connected with two feeding plates, each of the feeding plates being provided with a plurality of feeding grooves;

[0010] two first clamping mechanisms arranged on two sides of the rack respectively for clamping the stainless steel pipe;

[0011] a cutting mechanism comprising a saw blade vertically and slidingly connected to the rack;

[0012] in the stroke of the feeding frame, the stroke sequentially comprises a feeding stroke, a clamping stroke, a cutting stroke and a discharging stroke;

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

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

[0015] the cutting stroke: vertically moving the saw blade downward to cut the stainless steel pipe to be cut;

[0016] the discharging stroke: taking the cut stainless steel pipe off the support plate.

[0017] Further, two feeding assemblies corresponding to the two feeding plates are arranged on two sides of the feeding frame respectively, each of the feeding assemblies comprising two push rods rotationally connected to the rack, one of the push rods being fixedly connected with a rotating disc, and the two push rods being rotationally connected with the corresponding feeding plates respectively.

[0018] Further, the push rod is eccentrically rotationally connected with the feeding plate.

[0019] Further, the first clamping mechanism comprises a first gear rotationally connected to the rack, the first gear being fixedly connected with two clamping guide rails, the rack being provided with two clamping grooves, the two clamping grooves being slidingly connected with clamping rods respectively, the two clamping rods being slidingly abutted with the two clamping guide rails one by one respectively, the two clamping rods being fixedly connected with first clamping plates respectively, the two first clamping plates being abutted with the stainless steel pipe, the rotating disc being fixedly connected with a plurality of teeth, and each of the teeth being meshed with the first gear.

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

[0021] Further in, the cutting mechanism further comprises a lifting rod vertically and slidingly connected to the frame, the saw blade is rotationally connected to the lifting rod, the lifting rod is fixedly connected with an abutting rod, the rotating disc is provided with a cutting groove, and the abutting rod slidingly abuts with the cutting groove.

[0022] Further in, the cutting groove is composed of an arc segment, a descending segment and an ascending segment.

[0023] Further in, the second clamping mechanism is arranged in the support groove at the end of each support plate, the second clamping mechanism comprises a gravity plate vertically and slidingly connected to the support groove, a spring is arranged between the gravity plate and the support plate, both ends of the gravity plate are provided with abutting grooves, two second clamping plates are transversely and slidingly connected to the support plate, both the second clamping plates are fixedly connected with horizontal rods, and the two horizontal rods slidingly abut with the two abutting grooves respectively.

[0024] Further in, the polishing mechanism comprises a first pulley fixedly connected to the rotating disc, a second pulley rotationally connected to the frame, a belt arranged between the first pulley and the second pulley, a polishing disc fixedly connected to the second pulley, a first incomplete gear ring and a second incomplete gear ring fixedly connected to the polishing disc, a second gear rotationally connected to the frame, the second gear meshing with the first incomplete gear ring and the second incomplete gear ring, a sleeve fixedly connected to the second gear, a first elastic telescopic rod sleeved in the sleeve, the first elastic telescopic rod slidingly and rotationally connected to the frame, a second elastic telescopic rod fixedly connected to the first elastic telescopic rod, an extension groove arranged in the sleeve, the second elastic telescopic rod slidingly abutting with the extension groove, a fixing rod fixedly connected to the first elastic telescopic rod, and a polishing roller fixedly connected to the fixing rod.

[0025] Further in, the polishing mechanism comprises a first pulley fixedly connected to the rotating disc, a second pulley rotationally connected to the frame, a belt arranged between the first pulley and the second pulley, a polishing disc fixedly connected to the second pulley, a first incomplete gear ring and a second incomplete gear ring fixedly connected to the polishing disc, a second gear rotationally connected to the frame, the second gear meshing with the first incomplete gear ring and the second incomplete gear ring, a sleeve fixedly connected to the second gear, a first elastic telescopic rod sleeved in the sleeve, the first elastic telescopic rod slidingly and rotationally connected to the frame, a second elastic telescopic rod fixedly connected to the first elastic telescopic rod, an extension groove arranged in the sleeve, the second elastic telescopic rod slidingly abutting with the extension groove, a fixing rod fixedly connected to the first elastic telescopic rod, and a polishing roller fixedly connected to the fixing rod.

[0026] In the above technical scheme, the present application provides a heat exchanger stainless steel pipe bevel cutting device:

[0027] 1. Through the reciprocating movement of the feeding plate, the stainless steel pipes are intermittently conveyed, so that each stainless steel pipe is sequentially located at the cutting station, and the feeding plate movement drives the clamping mechanism to clamp the stainless steel pipe located at the cutting station, while driving the saw blade to gradually move vertically downward to cut the clamped steel pipe, and the cut steel pipe is conveyed by the feeding plate, avoiding the problem of low cutting efficiency caused by manual operation.

[0028] 2. The feeding mechanism is used for conveying the cut stainless steel pipe to the polishing station, the rotating disc drives the sleeve to rotate forward and reverse through the cooperation of the first incomplete gear ring, the second incomplete gear ring and the second gear, when the sleeve rotates forward, it first drives the polishing roller to translate horizontally and abut against the cut of the stainless steel pipe, then it drives the polishing roller to rotate to polish the cut, and in the process of rotating and polishing, the first elastic expansion rod can adaptively adjust the length through abutting against the cut; when the sleeve reverses, the first elastic expansion rod can be driven to shrink into the sleeve through the cooperation of the second elastic expansion rod and the limiting piece, so as to avoid the interference between the polished stainless steel pipe and the polishing mechanism in the process of conveying the stainless steel pipe by the feeding mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0030] Figure 1 The overall structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0031] Figure 2 The overall structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0032] Figure 3 The structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0033] Figure 4 The feeding mechanism structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0034] Figure 5 The polishing disc sectional structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0035] Figure 6 The rotating disc, the first clamping mechanism and the cutting mechanism structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0036] Figure 7 The A local enlarged structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0037] Figure 8 The second clamping mechanism structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0038] Figure 9 The polishing mechanism and the stainless steel pipe structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0039] Figure 10The polishing mechanism structure schematic view provided by the embodiment of the present application.

[0040] Figure 11 The limiting piece section structure schematic view provided by the embodiment of the present application.

[0041] Mark explanation:

[0042] 1, rack; 11, clamping groove; 2, support plate; 21, support groove; 3, feeding mechanism; 31, feeding frame; 32, feeding plate; 321, feeding groove; 33, rotating disc; 331, arc segment; 332, descending segment; 333, ascending segment; 34, push rod; 4, first clamping mechanism; 41, first gear; 42, clamping guide rail; 421, loose clamping segment; 422, holding segment; 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; 61, gravity plate; 62, spring; 63, abutting groove; 64, second clamping plate; 65, cross rod; 7, polishing mechanism; 71, first pulley; 72, second pulley; 73, belt; 74, polishing 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, polishing roller; 8, limiting piece; 81, sliding groove; 82, rotating groove; 83, one-way limiting plate. DETAILED DESCRIPTION

[0043] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0044] Please refer to Figures 1-11 The heat exchanger stainless steel pipe beveling device provided by the embodiment of the present application comprises a rack 1, a plurality of support plates 2 fixedly connected to the rack 1, and a plurality of support grooves 21 for supporting the stainless steel pipe on each support plate 2.

[0045] Preferably, as Figure 1 , 2 , as shown in 3, one end of each support plate 2 close to the cutting mechanism 5 has an inclined slope arranged in an inclined manner, which is used for discharging the cut stainless steel pipe; specifically, after the stainless steel pipe is cut, the feeding mechanism 3 is used to convey the stainless steel pipe to the slope, and the stainless steel pipe rolls down from the slope, thereby completing the discharging.

[0046] In the embodiment of the present application, the feeding mechanism 3 comprises a feeding frame 31 arranged on the rack 1 to make a rectangular reciprocating motion, and two feeding plates 32 are fixedly connected to the feeding frame 31, and a plurality of feeding grooves 321 are formed in each feeding plate 32.

[0047] Specifically, two sides of the feeding frame 31 are respectively provided with feeding assemblies corresponding to the two feeding plates 32, each feeding assembly comprises two poking rods 34 rotationally connected to the rack 1, one of the poking rods 34 is fixedly connected with a rotating disc 33, and the two poking rods 34 are respectively rotationally connected with the corresponding feeding plates 32.

[0048] In the embodiment of the present application, a driving motor (not shown in the figure) is further included, the driving motor is coaxially fixedly connected with any rotating disc 33, and the rotating disc 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 through the feeding frame 31, and the two ends of each feeding plate 32 are respectively eccentrically rotationally connected with the two poking rods 34, and the rotating speeds of the two poking rods 34 are the same, the two poking rods 34 can simultaneously limit the feeding plate 32, so that the feeding plate 32 can stably make a rectangular reciprocating motion to convey the stainless steel pipe. (The rectangular reciprocating motion is that the feeding plate 32 moves along a first direction to approach the steel pipe to be conveyed, vertically moves upward to lift the stainless steel pipe, moves along a second direction to move toward a cutting station, and vertically moves downward to place the stainless steel pipe in the supporting groove 21.)

[0050] In the embodiment of the present application, the two first clamping mechanisms 4 are respectively arranged on the two sides of the rack 1 and are used for clamping the stainless steel pipe. Specifically, the first clamping mechanism 4 comprises a first gear 41 rotationally connected to the rack 1, two clamping guide rails 42 fixedly connected to the first gear 41, two clamping grooves 11 formed in the rack 1, two clamping rods 43 slidably connected in the clamping grooves 11, the two clamping rods 43 respectively and correspondingly slidably abutting against the two clamping guide rails 42, two first clamping plates 44 fixedly connected to the two clamping rods 43, the two first clamping plates 44 respectively abutting against the stainless steel pipe, a plurality of teeth 45 fixedly connected to the rotating disc 33, and each tooth 45 is in meshing cooperation with the first gear 41. More specifically, the clamping guide rail 42 is composed of a loose clamping section 421 and a retaining section 422. The retaining section 422 is coaxially formed around the axis of the first gear 41, that is, the shape of the retaining 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, the clamping rod 43 is further provided with a sliding block, and the sliding block is slidably connected in the clamping groove 11. As for the shape of the sliding block, it is only required to avoid the rotation of the clamping rod 43, which is not limited herein.

[0052] Further preferably, a torsional spring is arranged between the first gear 41 and the rack 1.

[0053] The cutting mechanism 5 comprises a saw blade 52 vertically slidingly connected to the frame 1; the cutting mechanism 5 further comprises a lifting rod 51 vertically slidingly connected to the frame 1, the saw blade 52 being rotationally connected to the lifting rod 51, the lifting rod 51 being fixedly connected with an abutting rod 53, the rotating disc 33 being provided with a cutting groove, the abutting rod 53 slidingly abutting 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 are in a cooperative relationship, and the working principles of the two are as follows: Figure 5 , 6 When the rotating disc 33 rotates, the teeth 45 mesh with the first gear 41, and two strokes can be completed in the meshing time, i.e. a clamping stroke and a retaining stroke; the clamping stroke: when the first gear 41 is located at the middle position of each tooth 45 (i.e. at half of the meshing position), the first gear 41 and the two clamping guide rails 42 are driven to rotate due to the meshing relationship between the first gear 41 and the teeth 45, and the clamping rod 43 is caused to slide from one end to the other end of the clamping groove 11 through the cooperation between the clamping guide rail 42 and the clamping rod 43 and the clamping groove 11, and the clamping rod 43 slides from the loose clamping segment 421 to the junction position between the loose clamping segment 421 and the retaining segment 422; at the same time, referring to Figure 6 , at this time, the abutting rod 53 is also located at the middle position of each tooth 45 (i.e. at the junction position between the arc segment 331 and the descending segment 332, and is about to slide into the descending segment 332); the retaining stroke: immediately after the above, the teeth 45 continue to drive the clamping guide rail 42 to rotate through meshing with the first gear 41, which causes the clamping rod 43 to completely slide into the retaining segment 422, and since the retaining segment 422 is arc-shaped, the two first clamping plates 44 always maintain the clamping state of being in close contact with the stainless steel pipe even if the rotating disc 33 continues to rotate; on the other hand, the abutting rod 53 slides into the descending segment 332 and approaches the axial position of the rotating disc 33, causing the saw blade 52 to continuously move vertically downward and cut the clamped stainless steel pipe as the rotating disc 33 continues to rotate.

[0055] Immediately after the cutting is completed, the rotating disc 33 continues to rotate, at which time, on the one hand, each tooth 45 is disengaged from the meshing with the first gear 41, and due to the torsional spring provided between the first gear 41 and the frame 1, the first gear 41 is reversely rotated and reset under the elastic force of the torsional spring recovering from 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 which has completed the cutting is released); on the other hand, the abutting rod 53 slides from the descending segment 332 into the ascending segment 333 and moves away from the axial direction of the rotating disc 33, causing the saw blade 52 to move vertically upward and reset.

[0056] It can be understood that: immediately after the above principle, when the rotating disc 33 continues to rotate to make the abutting rod 53 slide into the arc segment 331, the first clamping mechanism 4 and the cutting mechanism 5 are kept in a stationary state, in this process, the rotation of the rotating disc 33 transports each stainless steel pipe, so that the stainless steel pipe just cut off is transported into an adjacent support groove 21, and the second clamping mechanism 6 arranged in the support groove 21 at the end of each support plate 2 can clamp the cut-off steel pipe for a second time, thereby facilitating the subsequent polishing operation.

[0057] In the embodiment of the application: the second clamping mechanism 6 is further included, which 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 and slidingly 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; both ends of the gravity plate 61 are provided with abutting grooves 63, two second clamping plates 64 are transversely and slidingly connected on the support plate 2, two horizontal rods 65 are fixedly connected on the two second clamping plates 64, and the two horizontal rods 65 are slidingly and abuttingly connected with the two abutting grooves 63, respectively and correspondingly.

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

[0059] Preferably, the side of each of the two second clamping plates 64 close to each other is fixedly connected with a friction pad, which is abuttingly connected with the stainless steel pipe, so as to avoid rotation of the stainless steel pipe in the polishing process.

[0060] The working principle of the second clamping mechanism 6 is as follows: after the cut-off stainless steel pipe is transported into the support groove 21 by the feeding mechanism 3, the stainless steel pipe is abuttingly connected with the gravity plate 61, and the gravity plate 61 moves vertically downward under the action of gravity of the stainless steel pipe, so as to compress the spring 62 and make the spring 62 elastically deform and shrink, and in the process of downward movement of the gravity plate 61, the two second clamping plates 64 are driven to be close to each other through cooperation of the abutting grooves 63 and the horizontal rods 65, so as to complete the clamping operation of the stainless steel pipe; when the feeding mechanism 3 transports the stainless steel pipe out of the support groove 21, the second clamping mechanism 6 is automatically reset in the process of elastic deformation recovery of the spring 62.

[0061] The polishing mechanism 7 comprises a first pulley 71 fixedly connected to the rotating disc 33, a second pulley 72 rotatably connected to the rack 1, a belt 73 arranged between the first pulley 71 and the second pulley 72, a polishing disc 74 fixedly connected to the second pulley 72, a first incomplete gear ring 75 and a second incomplete gear ring 76 fixedly connected to the polishing disc 74, a second gear 77 rotatably connected to the rack 1, the second gear 77 being in meshing cooperation with the first incomplete gear ring 75 and the second incomplete gear ring 76 respectively, a sleeve 78 fixedly connected to the second gear 77, a first elastic telescopic rod 79 sleeved in the sleeve 78, the first elastic telescopic rod 79 being fixedly connected to the rack 1, a second elastic telescopic rod 710 fixedly connected to the first elastic telescopic rod 79, an extension slot 781 being formed in the sleeve 78, the second elastic telescopic rod 710 being in sliding abutment with the extension slot 781, a fixing rod 711 fixedly connected to the first elastic telescopic rod 79, and a polishing roller 712 fixedly connected to the fixing rod 711.

[0062] In another embodiment of the present application, the polishing roller 712 can also be rotatably connected to the fixing rod 711, and a driving source for driving the polishing roller 712 to rotate is arranged, so that the polishing effect is better.

[0063] In the embodiment of the present application, as shown in Figure 10 , a notch is formed on the outer side wall of the polishing roller 712, with the axis of the polishing roller 712 as the center, so that the polishing roller 712 can abut against the inner wall, the outer wall and the cut surface of the notch of the stainless steel pipe respectively, thereby ensuring the polishing effect.

[0064] As shown in Figure 5 , 9 , the first incomplete gear ring 75 occupies three quarters of the rotating disc 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 in meshing cooperation with the second gear 77 respectively, so as to drive the second gear 77 to rotate in the forward direction and the reverse direction; when the first incomplete gear ring 75 is in meshing cooperation with the second gear 77, the meshing 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 notch of the stainless steel pipe after cutting; the meshing time of the second incomplete gear ring 76 and the second gear 77 is relatively short, and the purpose is to drive the second gear 77 to rotate in the reverse direction to reset.

[0065] It is worth mentioning that: the first elastic telescopic rod 79 and the second elastic telescopic rod 710 are prior art, which comprises a base and an end portion, a plurality of telescopic joints are arranged between the base and the end portion, and an elastic member is arranged between the base and the end portion, 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] Further comprising a limiting piece 8 fixedly connected to the rack 1, a sliding groove 81 is formed in the limiting piece 8, the sliding groove 81 is communicated with a rotating groove 82, the second elastic telescopic rod 710 is respectively in abutting cooperation with the sliding groove 81 and the rotating groove 82, and a one-way limiting plate 83 is fixedly connected in the rotating groove 82, and the end portion of the second elastic telescopic rod 710 is in sliding abutting cooperation with the one-way limiting plate 83.

[0067] Specifically, the purpose of the limiting piece 8 is to realize that the first elastic telescopic rod 79 can slide and rotate on the rack 1; the rotating groove 82 is circumferentially formed, the height of the one-way limiting plate 83 is less than the depth of the rotating groove 82, the one-way limiting plate 83 has an abutting plane and a limiting plane, as shown in Figure 11 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 abutting plane of the one-way limiting plate 83, so as to drive 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 abutting limiting effect, the second elastic telescopic rod 710 is slid into the sliding groove 81 from the rotating groove 82.

[0068] And, as shown in Figure 11 It is worth mentioning that the limiting plane of the one-way limiting plate 83 coincides with one side wall of the sliding groove 81.

[0069] The specific principle of the polishing mechanism 7 and the limiting piece 8 is that the first pulley 71 is synchronously rotated by the rotating disc 33, the power is transmitted to the second pulley 72 through the belt 73, the second pulley 72 drives the polishing disc 74 to rotate, in the process of the rotation of the polishing disc 74, first, the first incomplete gear ring 75 is engaged with the second gear 77, the second gear 77 drives the sleeve 78 to synchronously rotate along the first direction, in the process of the rotation of the sleeve along the first direction 78, the extension stroke and the polishing stroke are provided.

[0070] In the extension stroke: through the cooperation of the extension groove 781 and the second elastic telescopic rod 710, and the abutting cooperation of the second elastic telescopic rod 710 and the sliding groove 81, the second elastic telescopic rod 710 slides in the sliding groove 81 and slides into the rotating groove 82, so that the first elastic telescopic rod 79 is pushed out from the inside of the sleeve 78, so that the polishing roller 712 is driven to approach the position of the stainless steel pipe, and abuts against the notch of the stainless steel pipe. After abutting, the length of the first elastic telescopic rod 79 is shortened due to the abutting action.

[0071] In the polishing stroke: the sleeve 78 is continuously driven to rotate by the second gear 77. At this time, the second elastic telescopic rod 710 has been located in the extension groove 781 close to the end of the polishing roller 712, and therefore the second elastic telescopic rod 710 is also located in the rotating groove 82 at this time. Therefore, the sleeve 78 drives the second elastic telescopic rod 710 to rotate synchronously in the rotating groove 82. Since the notch of the stainless steel pipe is inclined, under the action of the elastic force of the first elastic telescopic rod 79, the first elastic telescopic rod 79 drives the polishing roller 712 at the end thereof to adaptively expand or contract to adapt to the notch of the stainless steel pipe.

[0072] When the second incomplete gear ring 76 engages with the second gear 77, the second gear 77 is driven to rotate the sleeve 78 in the second direction. The sleeve 78 has a retraction stroke during rotation; the retraction stroke: the sleeve 78 rotates in the second direction and drives the second elastic telescopic rod 710 to rotate reversely in the rotating groove 82. During rotation, the second elastic telescopic rod 710 will be limited by the limiting plane of the one-way limiting plate 83. At this time, the second elastic telescopic rod 710 cannot continue to rotate in the rotating groove 82 due to the limiting action of the limiting plane. At this time, the rotation of the sleeve 78 drives the second elastic telescopic rod 710 to slide from the rotating groove 82 into the sliding groove 81, thereby driving the first elastic telescopic rod 79 to retract into the sleeve 78, completing the reset. By retracting the first elastic telescopic rod 79 into the sleeve 78, the stainless steel pipe is avoided, so as to avoid interference between the stainless steel pipe and the polishing roller 712 during the next cutting process.

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

[0074] The feeding stroke: intermittently moves the stainless steel pipe in the first direction from one support groove 21 to another adjacent support groove 21 for conveying;

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

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

[0077] Unloading stroke: the cut stainless steel tube is taken off from the support plate 2.

[0078] Certain exemplary embodiments of the present application have been described above by way of illustration, and it is to be understood that equivalent alterations and modifications will occur to those skilled in the art upon reading and understanding this specification and that in its broader aspect, the present application may be used in any number of applications other than those specifically described. Therefore, the above-described embodiments should not be construed as limiting, but merely as illustrative, and the full scope of the present application should be determined from the following claims, construed in accordance with the principles of patent law.

Claims

1. A heat exchanger stainless steel tube beveling device, characterized by, The utility model relates to a stainless steel pipe cutting device, including: Rack (1); A plurality of support plates (2) are fixedly connected on the rack (1), each support plate (2) has a plurality of support grooves (21) for supporting stainless steel pipes; A feeding mechanism (3) includes a rectangular reciprocating feeding frame (31) arranged on the rack (1), and two feeding plates (32) are fixedly connected to the feeding frame (31), a plurality of feeding grooves (321) are formed in each feeding plate (32); Feeding assemblies corresponding to the two feeding plates (32) are arranged on the two sides of the feeding frame (31), and each feeding assembly includes two rotatingly connected lever rods (34) on the rack (1), one of the lever rods (34) is fixedly connected with a rotating disc (33), and the two lever rods (34) are rotatably connected with the corresponding feeding plates (32), respectively; Two first clamping mechanisms (4) are arranged on the two sides of the rack (1) respectively for clamping the stainless steel pipes; A cutting mechanism (5) includes a saw blade (52) vertically and slidingly connected to the rack (1); The utility model further includes a second clamping mechanism (6) 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 and slidingly connected to the support groove (21), a spring (62) is arranged between the gravity plate (61) and the support plate (2), abutting grooves (63) are formed at the two ends of the gravity plate (61), two second clamping plates (64) are slidingly connected to the support plate (2) in the transverse direction, two cross bars (65) are fixedly connected to the two second clamping plates (64), respectively, and the two cross bars (65) slidingly abut the two abutting grooves (63) one by one, respectively; The utility model further includes a polishing mechanism (7) including a first pulley (71) fixedly connected to the rotating disc (33), a second pulley (72) rotatably connected to the rack (1), a belt (73) arranged between the first pulley (71) and the second pulley (72), a polishing disc (74) fixedly connected to the second pulley (72), a first incomplete gear ring (75) and a second incomplete gear ring (76) fixedly connected to the polishing disc (74), a second gear (77) rotatably connected to the rack (1), the second gear (77) meshing with the first incomplete gear ring (75) and the second incomplete gear ring (76), respectively, a sleeve (78) fixedly connected to the second gear (77), a first elastic telescopic rod (79) sleeved in the sleeve (78), the first elastic telescopic rod (79) slidingly and rotatably connected to the rack (1), a second elastic telescopic rod (710) fixedly connected to the first elastic telescopic rod (79), an extension groove (781) formed in the sleeve (78), the second elastic telescopic rod (710) slidingly abutting the extension groove (781), a fixing rod (711) fixedly connected to the first elastic telescopic rod (79), and a polishing roller (712) fixedly connected to the fixing rod (711); During the stroke of the feeding frame (31), the feeding stroke, the clamping stroke, the cutting stroke, and the discharging stroke are sequentially provided. Feeding stroke: the stainless steel pipe is intermittently moved in the first direction from one support groove (21) to another adjacent support groove (21) for conveying; Clamping stroke: the two first clamping mechanisms (4) clamp the two ends of the stainless steel pipe to be cut respectively; Cutting stroke: the saw blade (52) moves vertically downward to cut the stainless steel pipe to be cut; Discharging stroke: the cut stainless steel pipe is taken off from the support plate (2).

2. The heat exchanger stainless steel tube beveling device of claim 1, wherein The push rod (34) is eccentrically connected with the feeding plate (32).

3. The heat exchanger stainless steel tube beveling device of claim 1, wherein, The first clamping mechanism (4) comprises a first gear (41) rotatably connected to the rack (1), two clamping guide rails (42) fixedly connected to the first gear (41), two clamping grooves (11) formed in the rack (1), two clamping rods (43) slidably connected to the clamping grooves (11), the two clamping rods (43) slidably abutting with the two clamping guide rails (42) one by one, a first clamping plate (44) fixedly connected to each clamping rod (43), the two first clamping plates (44) abutting with the stainless steel pipe, and a plurality of teeth (45) fixedly connected to the turntable (33), each tooth (45) being in meshing cooperation with the first gear (41).

4. The heat exchanger stainless steel tube beveling device of claim 3, wherein, The clamping guide rail (42) is composed of a loose clamping section (421) and a retaining section (422).

5. The heat exchanger stainless steel tube beveler of claim 1 wherein: The cutting mechanism (5) further comprises a lifting rod (51) vertically slidably connected to the rack (1), the saw blade (52) being rotatably connected to the lifting rod (51), the lifting rod (51) being fixedly connected with an abutting rod (53), the turntable (33) being provided with a cutting groove, and the abutting rod (53) slidably abutting with the cutting groove.

6. The heat exchanger stainless steel tube beveling device of claim 5, wherein, The cutting groove is composed of an arc section (331), a descending section (332) and an ascending section (333) in communication.

7. The heat exchanger stainless steel tube beveler of claim 1 wherein: Further comprising a limiting piece (8) fixedly connected to the rack (1), the limiting piece (8) being provided with a sliding groove (81) in communication with a rotating groove (82), the second elastic extension rod (710) slidably abutting with the sliding groove (81) and the rotating groove (82), the rotating groove (82) being fixedly connected with a one-way limiting plate (83), and the end of the second elastic extension rod (710) slidably abutting with the one-way limiting plate (83).

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