Cutting device for corrugated pipe

Abstract

The utility model relates to the technical field of corrugated pipe processing, and discloses a cutting device for a corrugated pipe, which comprises a rack, a limiting mechanism for limiting the bending of the corrugated pipe is arranged in the middle of the top surface of the rack, a pushing mechanism is arranged at one end of the rack, the pushing mechanism comprises two chain wheels, and the two chain wheels are respectively and rotatably connected with two ends of the inner side of the rack. A chain is meshed between the two chain wheels, the two chain wheels are in transmission connection through the chain, a push plate is fixedly connected to the chain, a sliding groove is formed in the top face of the rack in the length direction, the push plate is in sliding connection with the inner wall of the sliding groove, and one chain wheel is coaxially and fixedly connected with a transmission gear. A driving mechanism for driving the transmission gear to intermittently rotate is arranged on the inner side of the rack, and a cutting mechanism for intermittently cutting the corrugated pipe through driving of the driving mechanism is arranged at one end of the top of the rack. The corrugated pipe cutting device is driven by the same driving source to push and cut corrugated pipes, cutting precision is high, and use cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated pipe processing, and more specifically, to a cutting device for corrugated pipes. Background Art

[0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the folding and expansion direction, mainly including metal bellows, corrugated expansion joints, corrugated heat exchange tubes and metal hoses, etc. Bellows are continuously hot-pressed in production. When batch cutting of fixed-length bellows, it is necessary to manually measure and mark the bellows to be cut, and then cut them with a cutting knife. After cutting, it is necessary to measure and mark again. This cutting method has low cutting efficiency.

[0003] In this regard, Chinese Patent Publication No. CN218802476U discloses "a corrugated pipe cutting device, including a cutting table, characterized in that: a fixing frame is fixedly provided on one side of the top of the cutting table, an electric cylinder is fixedly provided on the top of the fixing frame, a cutting knife is fixedly provided on the bottom end of the electric cylinder, a U-shaped plate is fixedly provided on one side of the cutting table, a driving assembly is provided on the inner wall of the U-shaped plate, the driving assembly includes a servo motor, a rotating shaft, a first gear, and a second gear, a lead screw is fixedly provided on one end of the second gear, a connecting block is inserted on one side of the outer wall of the lead screw, a push plate is fixedly provided on the top of the connecting block, and a fixing plate is fixedly provided on the side of the top of the cutting table close to the fixing frame".

[0004] The above patent drives the second gear to rotate intermittently through the first gear, so that the lead screw drives the push plate to intermittently push the bellows to move, and drives the cutting knife to cut the bellows by cooperating with the electric cylinder. Among them, the first gear and the cutting knife are driven by two driving sources, and the coordination of the two requires precise coordination. The two driving sources are prone to coordination delays, which causes the cutting knife to be unable to cut the bellows in the first time, thereby reducing the cutting accuracy. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a cutting device for a corrugated pipe, which has the advantage of accurately cutting the corrugated pipe.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting device for a corrugated pipe, comprising a frame, a limiting mechanism for limiting the bending of the corrugated pipe is arranged in the middle of the top surface of the frame, a pushing mechanism is arranged at one end of the frame, and the pushing mechanism comprises two sprockets, the two sprockets are rotatably connected to the two ends of the inner side of the frame respectively, a chain is meshed between the two sprockets, and the two sprockets are connected by chain transmission, a push plate is fixedly connected to the chain, a slide groove is opened on the top surface of the frame along the length direction, the push plate is slidably connected to the inner wall of the slide groove, one of the sprockets is coaxially fixedly connected with a transmission gear, a driving mechanism for driving the transmission gear to intermittently rotate is arranged on the inner side of the frame, and a cutting mechanism for intermittently cutting the corrugated pipe by the drive of the driving mechanism is arranged at one end of the top of the frame.

[0007] As a preferred technical solution of the utility model, the cutting mechanism includes a mounting frame, the top wall of the mounting frame is slidably connected to a pressure rod that passes through the mounting frame, the bottom of the pressure rod is fixedly connected to a cutter, and the top of the pressure rod is fixedly connected to a connecting plate.

[0008] As a preferred technical solution of the utility model, the driving mechanism includes a motor, the motor is fixedly installed on the inner side of the frame, the output shaft of the motor is fixedly connected to an incomplete gear, and the incomplete gear is intermittently meshed with the transmission gear.

[0009] As a preferred technical solution of the utility model, the driving mechanism also includes an eccentric wheel, one side of the eccentric wheel is fixedly connected to the output shaft of the motor, the outer edge of the eccentric wheel is rotatably connected to a connecting rod through a pin shaft, the top end of the connecting rod is hinged with a vertical rod, and the top end of the vertical rod is fixedly connected to the connecting plate.

[0010] As a preferred technical solution of the utility model, the limiting mechanism includes a fixed seat, which is fixedly connected to the top of the frame, and a sliding rod that passes through the fixed seat is slidably connected to the fixed seat, one end of the sliding rod is fixedly connected to a limiting plate that contacts the corrugated pipe, and the other end of the sliding rod is fixedly connected to a stopper.

[0011] As a preferred technical solution of the utility model, a spring is sleeved on the slide rod, one end of the spring abuts against the limit plate, and the other end of the spring abuts against the fixing seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the driving mechanism drives the transmission gear to rotate intermittently, which makes the sprocket rotate intermittently, and the chain drives the push plate to translate intermittently, so that the push plate pushes the corrugated tube to extend the same distance to the cutting mechanism, and at the same time the cutting mechanism drives the cutting mechanism to cut the corrugated tube intermittently, so that the push plate and the cutting mechanism can be driven by the same driving source to push and cut the corrugated tube, which not only has high cutting accuracy but also has low use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structure diagram of a cutting device for a corrugated pipe of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The structure diagram of a cutting device for a corrugated pipe of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 It is a structural schematic diagram of the pushing mechanism of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the cutting mechanism of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the driving mechanism of the utility model;

[0018] Figure 6 It is a structural schematic diagram of the limiting mechanism of the utility model.

[0019] In the figure: frame 1, limiting mechanism 2, fixing seat 21, sliding rod 22, limiting plate 23, spring 24, stopper 25, pushing mechanism 3, sprocket 31, chain 32, slide groove 33, push plate 34, transmission gear 35, cutting mechanism 4, mounting frame 41, pressure rod 42, cutter 43, connecting plate 44, driving mechanism 5, motor 51, incomplete gear 52, eccentric wheel 53, connecting rod 54, vertical rod 55. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 6As shown, the utility model provides a cutting device for a corrugated pipe, comprising a frame 1, a limiting mechanism 2 for limiting the bending of the corrugated pipe is arranged in the middle of the top surface of the frame 1, a pushing mechanism 3 is arranged at one end of the frame 1, the pushing mechanism 3 comprises two sprocket wheels 31, the two sprocket wheels 31 are rotatably connected to the two ends of the inner side of the frame 1 respectively, a chain 32 is meshed between the two sprocket wheels 31, and the two sprocket wheels 31 are transmission connected by the chain 32, a push plate 34 is fixedly connected to the chain 32, a slide groove 33 is opened on the top surface of the frame 1 along the length direction, the push plate 34 is slidably connected to the inner wall of the slide groove 33, one of the sprocket wheels 31 is coaxially fixedly connected with a transmission gear 35, a driving mechanism 5 for driving the transmission gear 35 to rotate intermittently is arranged on the inner side of the frame 1, and a cutting mechanism 4 for intermittently cutting the corrugated pipe by the drive of the driving mechanism 5 is arranged at one end of the top of the frame 1.

[0022] The driving mechanism 5 drives the transmission gear 35 to rotate intermittently, which makes the sprocket 31 rotate intermittently, and the chain 32 drives the push plate 34 to translate intermittently, so that the push plate 34 pushes the corrugated tube to extend to the cutting mechanism 4 by the same distance, and at the same time the cutting mechanism 4 drives the cutting mechanism 4 to cut the corrugated tube intermittently, so that the push plate 34 and the cutting mechanism 4 can be driven by the same driving source to push and cut the corrugated tube, which not only has high cutting accuracy but also has low use cost.

[0023] The cutting mechanism 4 includes a mounting frame 41 , a top wall of the mounting frame 41 is slidably connected to a pressure rod 42 that passes through the mounting frame 41 , a bottom of the pressure rod 42 is fixedly connected to a cutter 43 , and a top of the pressure rod 42 is fixedly connected to a connecting plate 44 .

[0024] Among them, the driving mechanism 5 includes a motor 51, which is fixedly installed on the inner side of the frame 1. The output shaft of the motor 51 is fixedly connected to an incomplete gear 52, and the incomplete gear 52 is intermittently meshed with the transmission gear 35. The output shaft of the motor 51 is also fixedly connected to an eccentric wheel 53. The outer edge of the eccentric wheel 53 is rotatably connected to a connecting rod 54 through a pin shaft. The top end of the connecting rod 54 is hinged with a vertical rod 55, and the top end of the vertical rod 55 is fixedly connected to the connecting plate 44.

[0025] The limiting mechanism 2 includes a fixed seat 21, which is fixedly connected to the top of the frame 1. A slide bar 22 penetrating the fixed seat 21 is slidably connected to the fixed seat 21. A limiting plate 23 that contacts the bellows is fixedly connected to one end of the slide bar 22. A stopper 25 is fixedly connected to the other end of the slide bar 22. A spring 24 is sleeved on the slide bar 22. One end of the spring 24 contacts the limiting plate 23, and the other end of the spring 24 contacts the fixed seat 21. The elastic force of the spring 24 applies a thrust to the limiting plate 23, so that the limiting plate 23 can apply pressure to the bellows to straighten it, effectively avoiding the problem of the bellows bending.

[0026] The working principle of the utility model is as follows: the motor 51 is started to rotate the incomplete gear 52. Since the incomplete gear 52 is intermittently meshed with the transmission gear 35, the transmission gear 35 drives the sprocket 31 to rotate intermittently, and the chain 32 drives the push plate 34 to translate intermittently, so that the push plate 34 pushes the corrugated tube to extend the same distance to the cutting mechanism 4;

[0027] The motor 51 drives the eccentric wheel 53 to rotate at the same time, which makes the connecting rod 54 drive the vertical rod 55 to reciprocate up and down, so that the connecting plate 44 drives the pressure rod 42 to slide up and down, and the cutter 43 moves up and down. When the incomplete gear 52 is disengaged from the transmission gear 35, the cutter 43 moves downward and cuts the corrugated tube. In this cycle, the intermittent alternating cooperation between the cutter 43 and the push plate 34 can achieve precise cutting of the corrugated tube.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for a corrugated pipe, comprising a frame (1), wherein a limiting mechanism (2) for limiting the bending of the corrugated pipe is provided in the middle of the top surface of the frame (1), wherein: A pushing mechanism (3) is provided at one end of the frame (1), and the pushing mechanism (3) comprises two sprocket wheels (31), the two sprocket wheels (31) are rotatably connected to the two ends of the inner side of the frame (1), a chain (32) is meshed between the two sprocket wheels (31), and the two sprocket wheels (31) are transmission-connected via the chain (32), a push plate (34) is fixedly connected to the chain (32), a slide groove (33) is provided on the top surface of the frame (1) along the length direction, the push plate (34) is slidably connected to the inner wall of the slide groove (33), one of the sprocket wheels (31) is coaxially fixedly connected to a transmission gear (35), a driving mechanism (5) for driving the transmission gear (35) to rotate intermittently is provided on the inner side of the frame (1), and a cutting mechanism (4) for intermittently cutting the corrugated tube by the drive of the driving mechanism (5) is provided at one end of the top of the frame (1).

2. A cutting device for a corrugated pipe according to claim 1, characterized in that: The cutting mechanism (4) comprises a mounting frame (41), the top wall of the mounting frame (41) being slidably connected to a pressure rod (42) penetrating the mounting frame (41), the bottom of the pressure rod (42) being fixedly connected to a cutter (43), and the top of the pressure rod (42) being fixedly connected to a connecting plate (44).

3. A cutting device for a corrugated pipe according to claim 2, characterized in that: The driving mechanism (5) comprises a motor (51), wherein the motor (51) is fixedly mounted on the inner side of the frame (1), and an output shaft of the motor (51) is fixedly connected to an incomplete gear (52), wherein the incomplete gear (52) is intermittently meshed with a transmission gear (35).

4. A cutting device for a corrugated pipe according to claim 3, characterized in that: The driving mechanism (5) further comprises an eccentric wheel (53), one side of which is fixedly connected to the output shaft of the motor (51), the outer edge of the eccentric wheel (53) is rotatably connected to a connecting rod (54) via a pin, the top end of the connecting rod (54) is hingedly connected to a vertical rod (55), and the top end of the vertical rod (55) is fixedly connected to the connecting plate (44).

5. A cutting device for a corrugated pipe according to claim 1, characterized in that: The limiting mechanism (2) comprises a fixing seat (21), the fixing seat (21) being fixedly connected to the top of the frame (1), a sliding rod (22) penetrating the fixing seat (21) being slidably connected to the fixing seat (21), one end of the sliding rod (22) being fixedly connected to a limiting plate (23) abutting against the corrugated pipe, and the other end of the sliding rod (22) being fixedly connected to a stopper (25).

6. A cutting device for a corrugated pipe according to claim 5, characterized in that: A spring (24) is sleeved on the slide bar (22), one end of the spring (24) abuts against the limit plate (23), and the other end of the spring (24) abuts against the fixed seat (21).

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