A pipe chain machine

Abstract

The present invention discloses a tube chain machine, comprising a chain tensioning device, a chain transmission device and a pair of material conveying pipelines, a closed chain passing through the material conveying pipeline, and a scraper plate arranged at intervals on the chain; the chain tensioning device comprises a tensioning box, a sprocket assembly rotatably arranged in the tensioning box, and the chain transmission device comprises a transmission box, a sprocket assembly rotatably arranged in the transmission box; the left and right ends of a pair of material conveying pipelines are respectively connected with the inside of the tensioning box and the transmission box, the closed chain enters the tensioning box and the transmission box respectively and realizes meshing transmission connection with the sprocket assembly in the tensioning box and the transmission box respectively; the material conveying pipeline is also provided with a feeding device and an automatic unloading device; the box wall of the tensioning box is also provided with a nitrogen inflation port, and the nitrogen inflation port is provided with a nitrogen inflation block plug connector. The present invention can improve the convenience of disassembly and maintenance of the tube chain machine and the flexibility of material output control, and improve the wear resistance of the material conveying pipeline and the convenience of on-site cleaning and maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of material conveying equipment, and in particular to a tube chain machine. Background Art

[0002] The pipe chain machine is a device that uses a chain as a traction tool to transport powdery materials, granular materials or block materials in a pipeline. The chain of the pipe chain machine is built into the pipeline, and a number of scraper plates are arranged at intervals on the chain. A space for material transportation is formed between two adjacent scraper plates. The pipeline is provided with a feeding node and a discharging node. Through the traction of the chain, the material can be transported from the feeding node to the discharging node.

[0003] In order to achieve chain traction, the tube chain machine is usually also provided with a chain tensioner and a chain transmission device. The chain tensioner includes a tensioning box, and the chain transmission device includes a transmission box. Sprocket assemblies are respectively provided in the tensioning box and the transmission box. A pair of material conveying pipes are connected between the tensioning box and the transmission box. The chain is a closed chain, and the two ends of the closed chain are respectively meshed and transmission-connected with the sprocket assemblies in the tensioning box and the transmission box.

[0004] The existing tube chain machine still has the following shortcomings:

[0005] First, after the existing tube chain machine has been used for a period of time, the sealing reliability will inevitably decrease, which may cause outside air to enter the material conveying pipeline during material conveying and react with the material, thereby seriously affecting the conveying quality of some special materials.

[0006] Secondly, the tensioning device of the existing tube chain machine is troublesome to adjust the tensioning force and to disassemble, repair and replace the internal sprocket assembly.

[0007] Third, when there are multiple discharge nodes on the pipeline of the existing pipe chain machine, the discharge amount of each discharge node depends on the material conveying speed of the pipe chain machine and the size of the discharge port at the discharge node, and it is impossible to achieve flexible control of the discharge amount at different discharge nodes. For example, some discharge nodes need to be closed at certain times, some discharge nodes need to be closed at certain times, and some discharge nodes need to increase or decrease the discharge amount at certain times.

[0008] Fourth, when the existing pipe chain machine is in operation, the chain with the scraper plate will rub when passing through the bend of the conveying pipeline, resulting in increased wear, thereby greatly reducing the service life of the conveying pipeline.

[0009] Fifth, for some special applications, the replacement of conveying materials may be involved. For this reason, the conveying pipeline of the tube chain machine must be cleaned before the material is replaced. In addition, even if the material is not replaced, the internal material of the tube chain machine will stick and clog after a long period of use, and the tube chain machine also needs to be cleaned and maintained. However, the existing tube chain machine also has the disadvantages of difficult cleaning and maintenance and cumbersome cleaning operations. If the tube chain machine needs to be cleaned more thoroughly, it is usually necessary to disassemble the machine for cleaning, which leads to a long cleaning and maintenance cycle.

[0010] Therefore, it is necessary to develop a pipe chain machine with anti-oxidation protection, easy disassembly and maintenance, flexible control of discharge volume, low wear of the feed pipeline, and easy cleaning and maintenance to address the above problems. Summary of the invention

[0011] In order to solve the above problems, the present invention proposes a pipe chain machine, which aims to achieve gas protection for material transportation, improve the convenience of disassembly and maintenance of the pipe chain machine and the flexibility of material output control, and improve the wear resistance of the material conveying pipeline and the convenience of on-site cleaning and maintenance. The specific technical solution is as follows:

[0012] A tube chain machine, comprising a chain tensioner, a chain transmission device and a pair of material conveying pipes connected between the chain tensioner and the chain transmission device, a chain passing through the material conveying pipe, and a scraper plate arranged at intervals on the chain; the chain tensioner comprises a tensioning box, a sprocket assembly rotatably arranged in the tensioning box, and the chain transmission device comprises a transmission box, a sprocket assembly rotatably arranged in the transmission box; the left and right ends of the pair of material conveying pipes are respectively connected with the interior of the tensioning box and the transmission box, the chain is a closed chain, and the closed chain enters the tensioning box and the transmission box respectively and respectively and correspondingly realizes meshing transmission connection with the sprocket assemblies in the tensioning box and the transmission box; a feeding device and an automatic unloading device are also respectively arranged on the material conveying pipe; a nitrogen inflation port is also arranged on the box wall of the tensioning box, and a nitrogen inflation block plug connector is arranged on the nitrogen inflation port.

[0013] In the present invention, the chain tensioning device also includes a pair of slides respectively slidably arranged on the front and rear side walls inside the tensioning box along the left and right directions, a tensioning bracket connected between the left side parts of the pair of slides for tensioning the pair of slides toward the left direction, a pull rod hole opened on the left box wall of the tensioning box, a pull rod passing through the pull rod hole from the left side of the outside of the tensioning box and entering the inside of the tensioning box and connected to the tensioning bracket, a compression spring sleeved on the outer circle of the pull rod from the left side of the outside of the tensioning box and supporting the left outer wall of the tensioning box, a clamping nut threadedly connected to the threaded outer circle at the left end of the outer circle of the pull rod and supporting the compression spring, and the sprocket assembly in the tensioning box is rotatably arranged on the pair of slides.

[0014] In the present invention, the automatic unloading device includes a unloading box body arranged on the feeding pipeline of the tube chain machine, and a unloading port arranged on the unloading box body. Pipe interfaces are respectively opened at both ends of the unloading box body, and the pipe interface at one end of the unloading box body is connected to the feeding inlet of the feeding pipeline, and the pipe interface at the other end of the unloading box body is connected to the feeding outlet of the feeding pipeline. A unloading pipe is also rotatably arranged in the unloading box body, and the pipe ports at both ends of the unloading pipe are respectively rotatably connected with the feeding inlet and the feeding outlet of the feeding pipeline, and an unloading control port is axially opened on the side wall of the tube body of the unloading pipe; a servo motor is arranged on the outside of the unloading box body, and the motor shaft of the servo motor is connected to a driving gear after being inserted into the unloading box body, and a driven gear is connected to the outer circle of the unloading pipe, and the driving gear is meshed with the driven gear.

[0015] As a further improvement to the automatic unloading device of the present invention, a short hopper is also connected to the edge of the unloading control port of the unloading pipe to prevent material from overflowing when the unloading control port is facing upward.

[0016] In the present invention, the automatic unloading device is provided with three working states: closed unloading, static unloading and dynamic unloading; when the automatic unloading device is set to the closed unloading working state, the unloading control port of the unloading pipe is always set upwards through the control of the servo motor; when the automatic unloading device is set to the static unloading working state, the unloading control port of the unloading pipe is always set at a certain angle relative to the up and down directions through the control of the servo motor; when the automatic unloading device is set to the dynamic unloading working state, the unloading pipe is rotated around its own axis at a set speed through the control of the servo motor, thereby realizing dynamic unloading.

[0017] A tube chain machine of the present invention is also provided with a feed pipeline turning guide structure, the feed pipeline turning guide structure includes a curved pipe arranged at the turning point of the feed pipeline of the tube chain machine and a circular box body adjacently connected to one side of the inner arc of the curved pipe, the circular box body is connected to the adjacent connection of the curved pipe, a rotating wheel assembly is arranged in the circular box body, the rotating wheel assembly includes a core shaft and a rotating wheel fixed in the middle part of the core shaft, a pair of coaxial supporting holes are respectively arranged at the central parts of both sides of the circular box body, the two ends of the core shaft are respectively rotatably arranged on the supporting holes, a circle of annular guide grooves are arranged on the outer circle of the rotating wheel, and the scraper plate on the chain of the tube chain machine contacts the annular guide groove on the outer circle of the rotating wheel when passing through the curved pipe position.

[0018] As a further improvement of the present invention, a plurality of nodes are also arranged on the feed pipeline, and a node valve assembly for closing or opening the internal logistics channel of the feed pipeline is arranged in series at the node position of the feed pipeline, the node valve assembly includes a valve body, transition connecting pipes respectively arranged on both sides of the valve body for being connected in series with the feed pipeline, a through hole transversely arranged on the valve body relative to the axis of the transition connecting pipe and connected to the transition connecting pipe, a pair of valve covers respectively and detachably mounted on both ends of the through hole, a pair of valve blocks respectively arranged on one side of the pair of valve covers and sealingly matched with the inner wall of the through hole, and a mating block arranged at the front end of the valve block, the mating blocks at the front end of the pair of valve blocks are abutted against each other along the axial direction of the through hole, and semicircular holes for sealing the internal chain of the feed pipeline are respectively arranged on the mutual mating surfaces of the mating blocks at the front end of the pair of valve blocks, after the mating blocks at the front end of the pair of valve blocks are mated with each other, the logistics channel between the transition connecting pipes on both sides of the valve body is separated at the valve block, forming a closed state of the node valve assembly.

[0019] Preferably, a pair of flow channel adapter blocks are correspondingly provided on the other side of the pair of valve covers, and an inner arc surface is provided on the side of the flow channel adapter block away from the valve cover. When the valve cover is flipped 180 degrees and reversely installed to the through hole, the pair of flow channel adapter blocks are aligned with each other and at the point where the pair of flow channel adapter blocks are aligned with each other, the inner arc surfaces on the pair of flow channel adapter blocks form a flow channel with an equal diameter that is the same as the inner diameter of the transition connecting pipe, thereby forming an open state of the node valve assembly.

[0020] Preferably, the transition connecting pipe is connected in series to the feed pipeline via a valve body mounting flange; cleaning interfaces for connecting to a circulating cleaning system are respectively provided on the transition connecting pipe on both sides of the valve body, and removable plugs are provided on the cleaning interfaces.

[0021] Preferably, an ultrasonic cleaning device is also provided on the valve cover, and the ultrasonic cleaning device includes an elastic buffer block, a vibrator mounting plate and an ultrasonic vibrator which are sequentially connected between the valve cover and the flow channel adapter block, and the cable of the ultrasonic vibrator is led out from the valve cover and then connected to an external ultrasonic generator; the ultrasonic cleaning device is also arranged between the mating block at the front end of the valve block and the valve block, and includes an elastic buffer block, a vibrator mounting plate and an ultrasonic vibrator which are sequentially connected between the valve block and the mating block, and the cable of the ultrasonic vibrator is led out from the valve cover and then connected to an external ultrasonic generator.

[0022] The beneficial effects of the present invention are:

[0023] First, in a tube chain machine of the present invention, a tensioning bracket for pulling the sprocket assembly is arranged in the tensioning box of the chain tensioning device, a pull rod leading to the outside of the tensioning box is arranged on the tensioning bracket, and a compression spring is arranged on the pull rod; when it is necessary to adjust the tensioning force of the chain, it is only necessary to directly adjust the clamping nut on the pull rod from the outside of the tensioning box, and the tension of the pull rod is changed by adjusting the compression force of the compression spring, thereby greatly facilitating the adjustment of the tensioning force; in addition, since the sprocket assembly is slidably arranged on the slide rail, it is convenient to quickly separate the sprocket assembly and the chain during maintenance, and it is easy to disassemble and maintain.

[0024] Secondly, in a tube chain machine of the present invention, a nitrogen inflation block plug connector is provided on the tensioning box of the chain tensioning device. Nitrogen can be filled into the tube chain machine through the nitrogen inflation block plug connector to replace the air inside the tube chain machine before material transportation; at the same time, it is beneficial to maintain a certain nitrogen pressure inside the tube chain machine during material transportation, and is beneficial to prevent the entry of outside air due to pipeline leakage, thereby facilitating the transportation of special materials that need nitrogen protection in the pipeline.

[0025] Thirdly, in a tube chain machine of the present invention, a rotatable feeding pipe is arranged in the feeding box of the automatic feeding device, and the angle of the feeding control port of the feeding pipe relative to the up and down directions can be changed. Different angles correspond to different feeding amounts, and the automatic feeding device on each node can be controlled separately, thereby realizing flexible control of the feeding amount at different feeding nodes of the tube chain machine.

[0026] Fourthly, in a pipe chain machine of the present invention, a material conveying pipeline turning guide structure is provided at the turning part of the material conveying pipeline, by arranging a circular box body on one side of the inner arc of the curved pipe at the turning part of the material conveying pipeline, and arranging a freely rotating guide wheel in the circular box body, the redirection guiding function of the chain movement is realized, thereby preventing the chain with a scraper plate from directly rubbing against the curved pipe when passing through the turning part of the material conveying pipeline, thereby improving the service life of the material conveying pipeline.

[0027] Fifth, a tube chain machine of the present invention has a node valve assembly on the feed pipeline of the tube chain machine, and the node valve assembly can control the closing and opening of the feed pipeline at the node; and by connecting the cleaning interface provided on the node valve assembly with the circulation cleaning system, the cleaning inside the feed pipeline can be realized; by providing multiple node valve assemblies on the feed pipeline, the circulation cleaning inside the feed pipeline between any nodes can be controlled, thereby reducing the pressure loss of the cleaning liquid in the feed pipeline and improving the cleaning effect. Cleaning can also be realized when the node valve assembly is closed or opened according to different cleaning requirements, which has good flexibility.

[0028] Sixth, in a pipe chain machine of the present invention, when the node valve assembly is set to the open state for dynamic ultrasonic cycle cleaning, the ultrasonic cleaning device can transmit the energy of ultrasonic vibration to the cleaning liquid flowing in the feed pipeline, thereby realizing comprehensive ultrasonic cleaning in the feed pipeline; during dynamic ultrasonic cycle cleaning, the chain transmission system of the pipe chain machine is turned on, so that the chain with the scraper plate can be ultrasonically cleaned while moving in the feed pipeline, which is conducive to comprehensive removal of adhesion materials on the chain and the scraper plate, thereby improving the cleaning quality of the entire chain and the scraper plate. When static ultrasonic cycle cleaning is adopted with the node valve assembly set to the closed state, a pair of matching blocks on the ultrasonic cleaning device can not only seal and press the chain, but also drive the chain to ultrasonically vibrate together, thereby improving the global ultrasonic cleaning ability in the feed pipeline, thereby further improving the thoroughness of ultrasonic cycle cleaning inside the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of a tube chain machine of the present invention;

[0030] Figure 2 It is a schematic diagram of the appearance structure of a chain tensioning device of a tube chain machine of the present invention;

[0031] Figure 3 Yes Figure 2 A schematic diagram of the structure after the tension box cover, spring sheath and chain are removed and the tension box is cut open;

[0032] Figure 4 yes Figure 3 A schematic diagram of the structure in which the sprocket assembly is connected to the tensioning bracket;

[0033] Figure 5 yes Figure 4 A schematic diagram showing the structure of rolling bearings and sealing packings arranged inside the middle sliding seat and the sealing seat ring;

[0034] Figure 6 It is a structural schematic diagram of an automatic unloading device of a tube chain machine of the present invention;

[0035] Figure 7 Yes Figure 6 Schematic diagram of the structure after the front end wall of the middle feeding box is cut away;

[0036] Figure 8 yes Figure 7 Schematic diagram of the structure after the bearing seat is removed;

[0037] Fig. 9 is Figure 7 On the basis of the discharge pipe structure in the embodiment, a short hopper is further connected to the edge of the discharge control port of the discharge pipe (a cross-sectional view of the discharge pipe);

[0038] Fig.10 It is a schematic diagram of a turning guide structure of a conveying pipeline of a pipe chain machine of the present invention;

[0039] Fig.11 yes Fig.10 Schematic diagram of the three-dimensional structure (the chain with the scraper plate is removed);

[0040] Fig.12 Yes Fig.11 The schematic diagram of the structure behind the front half shell and cover plate (the feed pipe is removed at one end);

[0041] Fig.13 yes Fig.12 A schematic diagram of a runner assembly in FIG.

[0042] Fig.14 It is a schematic diagram of the structure of the runner;

[0043] Fig.15 It is a schematic diagram of the assembly of the front Hough shell and the rear Hough shell;

[0044] Fig.16 It is a structural schematic diagram of a node valve assembly for cleaning control of a pipe chain machine feed pipeline of the present invention;

[0045] Fig.17 yes Fig.16 A schematic diagram of the structure in which the mating blocks at the front ends of a pair of valve blocks are mating with each other (left view);

[0046] Fig.18 Yes Fig.16 A schematic diagram of the structure of a pair of valve bodies after being turned 180 degrees and installed in reverse;

[0047] Fig.19 yes Fig.18 A schematic diagram of the structure in which a pair of flow channel adapter blocks are engaged with each other (left view);

[0048] Fig. 20 It is a schematic diagram of the arrangement of the pipe chain machine and the node valve assembly on the pipe chain machine (the node valve assembly is arranged in series at the node X position of the conveying pipeline).

[0049] In the figure: 00A, chain tensioner, 00B, chain transmission device.

[0050] In the figure: 01, tension box, 02, slide seat, 03, sprocket assembly, 04, material hole, 05, chain, 06, tension bracket, 07, pull rod hole, 08, pull rod, 09, compression spring, 10, clamping nut, 11, rotating shaft, 12, sprocket, 13, slide rail, 14, base plate, 15, guide plate, 16, slide groove, 17, proximity sensor, 18, rolling bearing, 19, sealing seat ring, 20, sealing packing, 21, sealing pressure seat, 22, stud, 23, support flange, 24, top pressure spring, 25, oblique support rib, 26, sprocket speed measuring handle, 27, spring sleeve, 28, nitrogen inflation block plug connector, 29, feed pipeline, 30, scraper plate, 31, tension box cover.

[0051] In the figure: 32, automatic unloading device, 33, unloading box, 34, unloading port, 35, feeding inlet, 36, feeding outlet, 37, unloading pipe, 38, unloading control port, 39, servo motor, 40, driving gear, 41, driven gear, 42, bearing seat, 43, bearing, 44, unloading box cover, 45, box connecting flange, 46, bolts, 47, short hopper.

[0052] In the figure: 51, feed pipeline turning guide structure, 52, elbow, 53, circular box body, 54, runner assembly, 55, mandrel, 56, runner, 57, support hole, 58, annular guide groove, 59, front half elbow, 60, rear half elbow, 61, front half circular box body, 62, rear half circular box body, 63, sliding bearing, 64, transmission key, 65, inner stop, 66, anti-friction washer, 67, cover plate, 68, sealing ring, 69, guide ring, 70, positioning hub, 71, arc-shaped support rib, 72, arc-shaped pressure plate, 73, extension part position.

[0053] In the figure: 75, valve body, 76, transition connecting pipe, 77, through hole, 78, valve cover, 79, valve block, 79-1, matching block, 80, semicircular hole, 81, flow channel adapter block, 82, inner arc surface, 83, valve body mounting flange, 84, circulation cleaning system, 85, cleaning interface, 86, ultrasonic cleaning device, 87, elastic buffer block, 88, vibrator mounting plate, 89, ultrasonic vibrator, 90, cleaning tank, 91, circulation pump, 92, liquid inlet pipeline, 93, liquid return pipeline, 94, filter screen, 95, dirt retaining chamber, 96, liquid supply chamber.

[0054] In the figure: 97, feeding device, 98, feeding hopper, 99, feeding hopper sealing plate, 100, discharge port sealing plate, 101, transmission box cover, 102, transmission box.

[0055] In the figure: X is a node set on the material conveying pipeline. DETAILED DESCRIPTION

[0056] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0057] like Figures 1 to 20 The figure shows an embodiment of a tube chain machine of the present invention, comprising a chain tensioner 00A, a chain transmission device 00B, and a pair of material conveying pipes 29 connected between the chain tensioner 00A and the chain transmission device 00B, a chain 05 passing through the material conveying pipes 29, and a scraper plate 30 arranged at intervals on the chain 05; the chain tensioner 00A comprises a tensioning box 01 and a sprocket assembly 03 rotatably arranged in the tensioning box 01, and the chain transmission device 00B comprises a transmission box 102 and a sprocket assembly 03 rotatably arranged in the transmission box 102; The left and right ends of the pair of conveying pipes 29 are respectively connected to the interior of the tensioning box 01 and the transmission box 102, the chain 05 is a closed chain, and the closed chain 05 enters the tensioning box 01 and the transmission box 102 respectively and respectively and correspondingly realizes meshing transmission connection with the sprocket assembly 03 in the tensioning box 01 and the transmission box 102; a feeding device 97 and an automatic unloading device 32 are also respectively arranged on the conveying pipe 29; a nitrogen inflation port is also arranged on the box wall of the tensioning box 01, and a nitrogen inflation block plug connector 28 is arranged on the nitrogen inflation port.

[0058] In this embodiment, the chain tensioning device 00A also includes a pair of slides 02 respectively slidably arranged on the front and rear side walls inside the tensioning box 01 along the left and right directions, a tensioning bracket 06 connected between the left side parts of the pair of slides 02 for tensioning the pair of slides 02 toward the left direction, a pull rod hole 07 opened on the left box wall of the tensioning box 01, a pull rod 08 passing through the pull rod hole 07 from the left side of the outside of the tensioning box 01 and entering the inside of the tensioning box 01 and connected to the tensioning bracket 06, a compression spring 09 which is sleeved on the outer circle of the pull rod 08 from the left side of the outside of the tensioning box 01 and supports the left outer wall of the tensioning box 01, and a clamping nut 10 which is threadedly connected to the threaded outer circle at the left end of the outer circle of the pull rod 08 and supports the compression spring 09, and the sprocket assembly 03 in the tensioning box 01 is rotatably arranged on the pair of slides 02.

[0059] In this embodiment, the sprocket assembly 03 includes a rotating shaft 11 and a sprocket 12 disposed on the rotating shaft 11 , and two ends of the rotating shaft 11 are correspondingly rotatably disposed on the pair of slide seats 02 .

[0060] Preferably, a pair of slide rails 13 are correspondingly arranged on the front and rear side walls inside the tension box 01 along the left and right directions, and the pair of slide seats 02 are correspondingly slidably arranged on the pair of slide rails 13 .

[0061] The two ends of the rotating shaft 11 of the sprocket assembly 03 are movably arranged on the slide rail 13 through the slide seat 02, and the synchronous pulling of the two ends is achieved by the tensioning bracket 06, and the stability of the chain tension is good.

[0062] Preferably, a base plate 14 is respectively provided on the front and rear side walls inside the tensioning box 01 along the left and right directions, and a pair of guide plates 15 are detachably connected to the base plate 14, and a slide groove 16 is formed between the pair of guide plates 15. The end of the slide seat 02 close to the base plate 14 is slidably set on the slide groove 16 and is slidably connected to the end surface of the guide plate 15.

[0063] In this embodiment, a bearing mounting hole is opened at one end of the slide 02 away from the base plate 14, and a rolling bearing 18 is arranged in the bearing mounting hole. The two ends of the rotating shaft 11 are rotatably arranged on the pair of slides 02 through the rolling bearings 18.

[0064] Preferably, a sealing seat ring 19 is provided at one end of the slide 02 away from the substrate, a sealing packing 20 is filled between the inner hole of the sealing seat ring 19 and the outer circle of the rotating shaft 11, and a sealing pressure seat 21 for pressing the sealing packing 20 is provided at the opening of the sealing seat ring 19 away from one end of the slide 02.

[0065] Preferably, a plurality of studs 22 are provided on the sealing seat ring 19, and corresponding stud holes for passing the studs 22 are provided on the sealing pressure seat 21, and the ends of the plurality of studs 22 are respectively connected to a flange 23 through nuts, and a pressure spring 24 is sleeved on the stud 22, and the pressure spring 24 presses between the sealing pressure seat 19 and the support flange 23.

[0066] Preferably, the tension bracket 06 is a U-shaped tension bracket, and oblique support ribs 25 are respectively provided at the corners on both sides of the bottom of the U-shaped opening of the U-shaped tension bracket 06.

[0067] As a further improvement of the present embodiment, a pair of sprocket speed measuring handles 26 are symmetrically fixed on the rotating shaft 11 , and a proximity sensor 17 for detecting whether the sprocket speed measuring handles 26 are approaching is arranged on the sliding seat 02 .

[0068] The proximity sensor 17 on the slide can measure the frequency of the rotation of the sprocket speed measuring handle 26 through the proximity sensor 17, so that the rotation speed of the sprocket 12 can be measured, which greatly facilitates the control of the rotation speed of the sprocket 12 and realizes accurate and controllable feeding.

[0069] In this embodiment, a spring sheath 27 is further provided on the periphery of the compression spring 09 , and the spring sheath 27 is fixed on the outer side wall of the tension box 01 .

[0070] In this embodiment, a sealing structure is provided between the pull rod 08 and the pull rod hole 07 of the tension box 01 .

[0071] In this embodiment, the pair of material conveying pipes 29 are connected to the pair of material holes 04 of the expansion box 01 .

[0072] In this embodiment, the automatic unloading device 32 includes an unloading box 33 arranged on the feeding pipeline 29 of the tube chain machine, and an unloading port 34 arranged on the unloading box 33. Both ends of the unloading box 33 are respectively provided with pipeline interfaces. The pipeline interface at one end of the unloading box 33 is connected to the feeding inlet 35 of the feeding pipeline 29, and the pipeline interface at the other end of the unloading box 33 is connected to the feeding outlet 36 of the feeding pipeline 29. A unloading pipe 37 is also rotatably arranged in the unloading box 33. The two end openings of the tube 37 are rotatably docked with the feed inlet 35 and the feed outlet 36 of the feed pipe 29 respectively, and a feed control port 38 is axially opened on the side wall of the tube body of the feed tube 37; a servo motor 39 is arranged on the outside of the feed box 33, and a driving gear 40 is connected to the motor shaft of the servo motor 39 after it penetrates into the feed box 33, and a driven gear 41 is connected to the outer circle of the feed tube 37, and the driving gear 40 is meshed with the driven gear 41.

[0073] In this embodiment, a bearing seat 42 is provided on the discharge box 33 at the position of the pipeline interface, and a bearing 43 is provided in the bearing seat 42. The two end pipe openings of the discharge pipe 37 are rotatably provided on the two end bearing seats 42 on the discharge box 33 through the bearings 43 and are correspondingly rotatably docked with the feed inlet 35 and the feed outlet 36 of the feed pipeline 29 on the discharge box 33.

[0074] Preferably, the bearing 43 is a sliding bearing or a rolling bearing.

[0075] In this embodiment, a detachable material discharge box cover 44 is provided on the upper portion of the material discharge box body 33 , and the material discharge port 34 is provided on the lower portion of the material discharge box body 33 .

[0076] In this embodiment, box connecting flanges 45 are respectively provided at the material delivery inlet 35 and the material delivery outlet 36 of the material delivery pipeline 29 , and the box connecting flanges 45 are fixed to the outer side wall of the unloading box 33 by bolts 46 .

[0077] Preferably, the servo motor 39 is a stepper motor.

[0078] In this embodiment, the servo motor 39 is connected to the control system of the tube chain machine.

[0079] As a further improvement to the automatic unloading device in this embodiment, a short hopper 47 is also connected to the edge of the unloading control port 38 of the unloading pipe 37 to prevent material from overflowing when the unloading control port 38 faces upward.

[0080] A short hopper 47 is connected to the discharge control port 38 of the above-mentioned discharge pipe 37, which can prevent the material from overflowing from the discharge control port 38 of the discharge pipe 37 when the automatic discharge device 32 of the tube chain machine is in the closed discharge working state (at this time, the discharge control port of the discharge pipe 37 is set upward), thereby improving the reliability of the work.

[0081] In this embodiment, the automatic unloading device 32 is provided with three working states of closed unloading, static unloading and dynamic unloading; when the automatic unloading device 32 is set to the closed unloading working state, the unloading control port 38 of the unloading pipe 37 is always set upward through the control of the servo motor 39; when the automatic unloading device 32 is set to the static unloading working state, the unloading control port 38 of the unloading pipe 37 is always set at a certain angle relative to the up and down directions through the control of the servo motor 39; when the automatic unloading device 32 is set to the dynamic unloading working state, the unloading pipe 37 is rotated around its own axis at a set speed through the control of the servo motor 39, thereby realizing dynamic unloading.

[0082] By means of the frequency conversion control of the servo motor 39, the material discharge amount can be controlled more accurately.

[0083] The above three material unloading working states can be flexibly selected according to actual working conditions, with good adaptability, controllable unloading amount and high unloading accuracy.

[0084] When the tube chain machine is working, the material is fed into the discharge box 33 and comes out from the discharge control port 38 of the discharge pipe 37 through the traction of the chain 05 with the scraper plate 30 in the feed pipe 29, and is output from the discharge port 34 of the discharge box 33 after falling by gravity, realizing automatic discharge.

[0085] A tube chain machine in this embodiment is also provided with a feed pipeline turning guide structure 51, which includes a curved pipe 52 arranged at the turning point of the feed pipeline 29 of the tube chain machine and a circular box body 53 adjacent to the inner arc side of the curved pipe 52, the circular box body 53 is connected to the adjacent connection of the curved pipe 52, a rotating wheel assembly 54 is arranged in the circular box body 53, the rotating wheel assembly 54 includes a core shaft 55 and a rotating wheel 56 fixed at the middle part of the core shaft 55, a pair of coaxial supporting holes 57 are respectively arranged at the central parts of both sides of the circular box body 53, the two ends of the core shaft 55 are respectively rotatably arranged on the supporting holes 57, a circle of annular guide grooves 58 are arranged on the outer circle of the rotating wheel 56, and the scraper plate 30 on the chain 05 of the tube chain machine contacts the annular guide groove 58 on the outer circle of the rotating wheel 56 when passing through the curved pipe 52.

[0086] Preferably, the curved pipe 52 is formed by splicing the front Half curved pipe 59 and the rear Half curved pipe 60 and fixed by bolts 46, and the circular box body 53 is formed by splicing the front Half circular box body 61 and the rear Half circular box body 62 and fixed by bolts; the front Half curved pipe 59 and the front Half circular box body 61 are integrally connected to form a front Half shell, and the rear Half curved pipe 60 and the rear Half circular box body 62 are integrally connected to form a rear Half shell; one of the pair of support holes 57 is arranged at the center of the front Half circular box body 61 on the front Half shell, and the other of the pair of support holes 57 is arranged at the center of the rear Half circular box body 62 on the rear Half shell.

[0087] Preferably, a sliding bearing 63 is disposed in the support hole 57 , and both ends of the core shaft 55 are rotatably disposed in the inner holes of the sliding bearing 63 .

[0088] In this embodiment, a transmission key 64 is provided at the fitting connection between the inner hole of the rotating wheel 56 and the core shaft 55 .

[0089] In this embodiment, both end openings of the inner hole of the rotating wheel 56 are respectively provided with inner stoppers 65 , and rear friction-reducing washers 66 are installed in the inner stoppers 65 . The end surface of the sliding bearing 63 abuts against the friction-reducing washers 66 .

[0090] Preferably, the anti-friction washer 66 is a polytetrafluoroethylene anti-friction washer.

[0091] In this embodiment, a cover plate 67 for covering the supporting hole is disposed on the outer side of the circular box body 53 , and a sealing ring 68 is disposed on one side of the cover plate 67 for covering the supporting hole 57 .

[0092] In this embodiment, the curved pipe 52 is a 60-120 degree curved pipe.

[0093] Preferably, the elbow 52 is a 90-degree arc elbow.

[0094] In this embodiment, the rotating wheel 56 includes a guide ring 69, a positioning hub 70 arranged in the central part of the guide ring 69, and a plurality of dispersed arc-shaped support ribs 71 connected between the guide ring 69 and the positioning hub 70, and the core shaft 55 is installed on the inner hole of the positioning hub 70.

[0095] In this embodiment, the two end pipe openings of the rear half bend 60 are axially extended relative to the two end pipe openings of the front half bend 59; an arc-shaped pressure plate 72 is provided at the extension position 73 of the two end pipe openings of the rear half bend 60 for fixing the docking part of the material conveying pipeline 29 when the material conveying pipeline 29 is docked with the material conveying pipeline turning guide structure 51.

[0096] In this embodiment, three narrow ring segments whose width is smaller than the thickness of the guide ring 69 are evenly spaced on the outer circle of the guide ring 69 of the rotating wheel 56 .

[0097] Preferably, the front half shell and the rear half shell are respectively provided with cleaning interfaces for facilitating internal cleaning, and the cleaning interfaces are threadedly connected with screw plugs (not shown in the figure).

[0098] As a further improvement of the present embodiment, a plurality of nodes X are further provided on the feed delivery pipeline 29, and a node valve assembly for closing or opening the internal logistics channel of the feed delivery pipeline 29 is provided in series at the node X position of the feed delivery pipeline 29, wherein the node valve assembly comprises a valve body 75, transition connecting pipes 76 respectively provided on both sides of the valve body 75 and connected in series with the feed delivery pipeline 29, a through hole 77 transversely provided on the valve body 75 relative to the axis of the transition connecting pipe 76 and connected to the transition connecting pipe 76, a pair of valve covers 78 respectively detachably installed at both ends of the through hole 77, and a valve cover 78 respectively provided on the one end of the through hole 77. A pair of valve blocks 79 are arranged on one side of the valve cover 78 and sealed with the inner wall of the through hole 77, and a mating block 79-1 is arranged at the front end of the valve block 79. The mating blocks 79-1 at the front end of the pair of valve blocks 79 are abutted against each other along the axial direction of the through hole 77, and semicircular holes 80 for sealing the internal chain 05 of the feed pipeline 29 are respectively arranged on the mutual mating surfaces of the mating blocks 79-1 at the front end of the pair of valve blocks 79. After the mating blocks 79-1 at the front end of the pair of valve blocks 79 are mated with each other, the logistics channel between the transition connecting pipes 76 on both sides of the valve body 75 is separated at the valve block 79, forming a closed state of the node valve assembly.

[0099] Preferably, a pair of flow channel adapter blocks 81 are correspondingly provided on the other side of the pair of valve covers 78, and an inner arc surface 82 is provided on the side of the flow channel adapter block 81 away from the valve cover 78. When the valve cover 78 is flipped 180 degrees and reversely installed to the through hole 77, the pair of flow channel adapter blocks 81 are aligned with each other and at the position where the pair of flow channel adapter blocks 81 are aligned with each other, the inner arc surfaces 82 on the pair of flow channel adapter blocks 81 form a flow channel with an equal diameter that is the same as the inner diameter of the transition connecting pipe 76, thereby forming an open state of the node valve assembly.

[0100] Preferably, the transition connecting pipe 76 is connected in series to the feed pipeline 29 via a valve body mounting flange 83; cleaning interfaces 85 for connecting to a circulating cleaning system 84 are respectively provided on the transition connecting pipe 76 on both sides of the valve body 75, and a removable plug is provided on the cleaning interface 85.

[0101] Preferably, an ultrasonic cleaning device 86 is also provided on the valve cover 78, and the ultrasonic cleaning device 86 includes an elastic buffer block 87, a vibrator mounting plate 88 and an ultrasonic vibrator 89 which are sequentially connected between the valve cover 78 and the flow channel adapter block 81. The cable of the ultrasonic vibrator 89 is led out from the valve cover 78 and then connected to an external ultrasonic generator.

[0102] Note that after the ultrasonic cleaning device 86 is installed between the valve cover 78 and the flow channel adapter block 81, the valve cover 78 and the flow channel adapter block 81 are actually completely separated by the elastic buffer block 87 and the vibrator mounting plate 88. Therefore, when the ultrasonic vibrator 89 vibrates, its vibration energy is mainly concentrated on the flow channel adapter block 81.

[0103] Preferably, a seat hole is provided on the flow channel adapter block 81 , and the ultrasonic vibrator 89 is built into the seat hole of the flow channel adapter block 81 and is packaged inside the seat hole through the vibrator mounting plate 88 .

[0104] Preferably, the elastic buffer block 87 is a rubber elastic buffer block.

[0105] Preferably, only one of the pair of flow channel adapter blocks 81 is provided with the ultrasonic cleaning device 86. The flow channel adapter block 81 provided with the ultrasonic cleaning device 86 is clearance-fitted with the through hole 77 on the valve body 75, and does not contact the through hole 77, which is conducive to the maximum effect of ultrasonic energy on the cleaning liquid in the conveying pipeline 29.

[0106] Preferably, the ultrasonic cleaning device 86 is also arranged between the mating block 79-1 at the front end of the valve block 79 and the valve block 79, and includes an elastic buffer block 87, a vibrator mounting plate 88 and an ultrasonic vibrator 89 which are sequentially connected between the valve block 79 and the mating block 79-1. The cable of the ultrasonic vibrator 89 is led out from the valve cover 78 and then connected to an external ultrasonic generator.

[0107] Note that after the ultrasonic cleaning device 86 is installed on the valve block 75, the valve block 79 and the mating block 79-1 are actually completely separated by the elastic buffer block 87 and the vibrator mounting plate 88. Therefore, when the ultrasonic vibrator 89 vibrates, its vibration energy is mainly concentrated on the mating block 79-1.

[0108] Preferably, a seat hole is provided on the mating block 79 - 1 , and the ultrasonic vibrator 89 is built into the seat hole of the mating block 79 - 1 , and is packaged inside the seat hole of the mating block 79 - 1 through the vibrator mounting plate 88 .

[0109] Preferably, the ultrasonic cleaning device 86 is only required to be disposed on one of the valve blocks 79 in the pair of valve blocks 79 .

[0110] Preferably, the circulating cleaning system 84 includes a cleaning tank 90 , a circulating pump 91 connected to the cleaning tank 90 , a liquid inlet pipeline 92 arranged at the outlet of the circulating pump 91 , and a liquid return pipeline 92 arranged on the cleaning tank 90 .

[0111] Among them, one of the cleaning interfaces 85 on the valve body 75 is connected to the circulation pump 91 through the liquid inlet pipeline 92, and another cleaning interface 85 on the valve body 75 is connected to the cleaning tank 90 through the liquid return pipeline 94.

[0112] In this embodiment, a filter screen 94 is provided in the cleaning pool 90, and the filter screen 94 divides the cleaning pool 90 into a dirt retaining chamber 95 and a liquid supply chamber 96. The circulating pump 91 is connected to the liquid supply chamber 96 of the cleaning pool 90, and the return liquid pipeline 93 is connected to the dirt retaining chamber 95 of the cleaning pool 90.

[0113] In this embodiment, the circulation pump 91 is a high-pressure circulation pump.

[0114] Preferably, a sealing ring is provided between the valve block 79 and the through hole 77 .

[0115] Preferably, the pair of valve blocks 79 are embedded with sealing strips along the semicircular holes 80 and the mating surfaces thereof.

[0116] In this embodiment, scraper plates 30 are arranged at intervals on the chain 05 inside the material conveying pipeline 29 of the tube chain machine, and a distance is set between the outer edge of the scraper plate 30 and the inner wall of the material conveying pipeline 29.

[0117] Preferably, the through hole 77 on the valve body 75 is a through hole 77 with a rectangular cross-section, and the through hole 77 is formed by wire cutting.

[0118] A node valve assembly for cleaning control of a pipe chain machine feed pipeline in this embodiment can be provided singly or multiple times on the feed pipeline 29, and can realize cleaning with the node valve assembly closed or open according to different cleaning requirements, with good flexibility.

[0119] In this embodiment, the forward and reverse installation modes of the valve body 75 determine two different cleaning methods.

[0120] In this embodiment, the cleaning method when a single node valve assembly is closed is as follows:

[0121] The feeding hopper mouth and the discharge port of the tube chain machine are pre-sealed with sealing plates to form an annular sealed channel structure inside the tube chain machine; the node valve assembly is set to a closed state so that the annular sealed channel is separated at the node valve assembly; the circulating cleaning system 84 is connected to a pair of cleaning interfaces 85 on the node valve assembly, and the circulating pump 91 is turned on to allow the cleaning liquid to circulate between the inside of the tube chain machine and the circulating pump 91 (the cleaning liquid circulates through the gap between the scraper plate 30 and the inner wall of the feed pipeline 29), and the ultrasonic cleaning device 86 on the valve block 79 is turned on. The ultrasonic vibrator 89 drives the chain 05 inside the feed pipeline 29 to vibrate together, so that the ultrasonic vibration energy is transmitted to various places inside the feed pipeline 29 through the chain 05, thereby stimulating cavitation of the cleaning liquid and realizing ultrasonic circulation cleaning inside the feed pipeline 29.

[0122] The cleaning method of the node valve assembly in this embodiment is set to the open state as follows:

[0123] The feeding hopper 98 and the discharge port 34 of the tube chain machine are sealed with sealing plates in advance, so that an annular sealed channel structure is formed inside the tube chain machine; the node valve assembly is set to a closed state so that the annular sealed channel is separated at the node valve assembly; the liquid inlet pipeline 92 and the liquid return pipeline 93 of the circulating cleaning system 84 are respectively connected to the tensioning box and the transmission box of the tube chain machine, so that a cleaning circulation loop is formed between a pair of feed pipes 29 between the tensioning box 01 and the transmission box 102 and the circulating pump 91 (at this time, a pair of feed pipes 29 are arranged in parallel in the cleaning circulation loop, and the cleaning liquid inside them moves in the same direction); the tube chain machine is turned on so that the chain 05 of the tube chain machine circulates in the feed pipe 29, and the ultrasonic cleaning device 86 on the flow channel adapter block 81 is turned on, and the ultrasonic vibration energy of the ultrasonic vibrator 89 is directly transmitted to the cleaning liquid circulating inside the feed pipe 29, so as to realize ultrasonic circulation cleaning inside the feed pipe.

[0124] Note that in order to achieve a comprehensive cleaning effect, the large parts of the tube chain machine (tensioning box 01, transmission box 102, unloading box 33 and feeding hopper 98, etc.) need to be disassembled and manually pre-cleaned. After pre-cleaning, the node valve assembly and circulating cleaning system 84 are used to perform the above two circulating cleaning methods.

[0125] When multiple node valve assemblies are provided on the feed pipeline 29, the liquid inlet pipeline 92 and the liquid return pipeline 93 of the circulating cleaning system 84 can be connected to the cleaning interfaces 85 of two adjacent node valve assemblies respectively, the two adjacent node valve assemblies are set to a closed state, and the circulating pump 91 and the ultrasonic cleaning device 86 on the valve block 79 are turned on to realize ultrasonic forced circulation cleaning inside the feed pipeline 29 between the two adjacent node valve assemblies.

[0126] The cleaning system of the pipe chain machine is formed by arranging a plurality of node valve assemblies on the material conveying pipeline and arranging a circulating cleaning system in conjunction with the above.

[0127] The cleaning system of the tube chain machine is provided with the following cleaning modes:

[0128] (1) Large-piece open static cleaning mode: The large-piece is defined as the feeding hopper 98, the material discharge box 33, the tensioning box 01, the transmission box 102 and the circular box 53 in the turning guide structure 51 of the conveying pipeline; the pipe chain machine is set in the stopped state, and the feeding hopper sealing plate 99 on the feeding hopper 98, the material discharge box cover 44 and the material discharge port sealing plate 100 on the material discharge box 33, the tensioning box cover 31 on the tensioning box 01, the transmission box cover 101 on the transmission box 102 and the circular box 53 of the half-jointed structure are disassembled respectively, and the inside of the large-piece is manually cleaned and washed;

[0129] (2) Large-piece open dynamic cleaning mode: The large pieces are defined as the feeding hopper 98, the material discharge box 33, the tensioning box 01, the transmission box 102 and the circular box 53 in the turning guide structure 51 of the conveying pipeline; the pipe chain machine is set in a stopped state, and the feeding hopper sealing plate 99 on the feeding hopper 98, the material discharge box cover 44 and the material discharge port sealing plate 100 on the material discharge box 33, the tensioning box cover 31 on the tensioning box 01, the transmission box cover 101 on the transmission box 102 and the circular box 53 of the half-jointed structure are disassembled respectively, and the node valve assembly is set in an open state, and the pipe chain machine is started to run empty, so that the chain 05 with the scraper plate 30 is circulated, and a high-pressure cleaning gun is used to manually clean and wash the inside of the large piece and the chain 05 with the scraper plate 30 that is circulating inside the large piece;

[0130] (3) Closed dynamic ultrasonic circulation cleaning mode for the whole machine: Use the hopper sealing plate 99 to seal the hopper 98, and use the discharge port sealing plate 100 to seal the discharge port 34 of the discharge box 33; connect the liquid inlet pipeline 92 of the circulation cleaning system 84 with the cleaning interface 85 on the tension box 01, and connect the liquid return pipeline 93 of the circulation cleaning system 84 with the cleaning interface 85 on the transmission box 102, so that a pair of feed pipes 29 located between the tension box 01 and the transmission box 102 are connected in parallel and then connected in series in the circulation cleaning circuit of the circulation cleaning system 84, and the node valve assembly is connected. Set in the open state, start the tube chain machine for idling operation, so that the chain 05 with the scraper plate 30 circulates in the feed pipe 29, and at the same time, start the circulation pump 91 so that the cleaning liquid inside the tube chain machine flows from the tensioning box 01 through a pair of feed pipes 29 arranged in parallel to the transmission box 102, thereby forming a circulation flow cleaning of the cleaning liquid between the tube chain machine and the circulation pump 91. During the circulation flow cleaning, the ultrasonic cleaning device 86 on the node valve assembly is also connected to excite the ultrasonic vibration of the cleaning liquid in the feed pipe 29, thereby realizing the closed dynamic ultrasonic circulation cleaning of the entire tube chain machine;

[0131] (4) Closed static ultrasonic circulation cleaning mode for the whole machine: the tube chain machine is set in a stopped state, one of the node valve assemblies on the feed pipeline 29 is set in a closed state, and the other node valve assemblies are set in an open state; the liquid inlet pipeline 92 and the liquid return pipeline 93 of the circulation cleaning system 84 are respectively connected to a pair of cleaning interfaces 85 on both sides of the node valve assembly in a closed state, so that the feed pipeline 29 of the tube chain machine is connected to the circulation cleaning loop of the circulation cleaning system 84 as a whole, and the circulation pump 91 of the circulation cleaning system is turned on to force the cleaning liquid to pass through the gap between the scraper plate 30 and the feed pipeline 29, thereby forming a circulation flow cleaning of the cleaning liquid between the feed pipeline 29 of the tube chain machine and the circulation pump 91. During the circulation flow cleaning, the ultrasonic cleaning device 86 on each node valve assembly is also connected to drive the chain 05 in the feed pipeline 29 to ultrasonically vibrate together, and stimulate the ultrasonic vibration of the cleaning liquid in the feed pipeline 29, thereby realizing static ultrasonic circulation cleaning of the pipeline inside the feed pipeline 29;

[0132] (5) Pipeline static ultrasonic circulation cleaning mode: The pipe chain machine is set in a stopped state, the node valve assemblies on the two adjacent nodes X on the feed pipeline 29 are set in a closed state, the liquid inlet pipeline 92 and the liquid return pipeline 93 of the circulation cleaning system 84 are respectively connected to the cleaning interface 85 on the transition connecting pipe 76 of the node valve assembly on the two adjacent nodes, and the circulation pump 91 of the circulation cleaning system 84 is turned on to force the cleaning liquid to pass through the gap between the scraper plate 30 and the feed pipeline 29, so that a circulation flow cleaning of the cleaning liquid is formed between the feed pipeline 29 located between the two adjacent nodes X and the circulation pump 91. During the circulation flow cleaning, the ultrasonic cleaning device 86 on the node valve assembly is also connected to drive the chain 05 in the feed pipeline 29 to ultrasonically vibrate together, thereby realizing the static ultrasonic circulation cleaning of the pipeline inside the feed pipeline 29;

[0133] (6) Static ultrasonic self-circulating cleaning mode for large parts: The large parts are defined as the feed hopper 98, the unloading box 33, the tensioning box 01, the transmission box 102 and the circular box 53 in the turning guide structure 51 of the conveying pipeline; the node valve assembly located adjacent to the large part on the conveying pipeline 29 is set in a closed state, the pipe chain machine is set in a stopped state, the liquid inlet pipeline 92 and the liquid return pipeline 93 of the circulating cleaning system are respectively connected to a pair of cleaning interfaces on the large part, and the circulating pump of the circulating cleaning system is turned on to form a circulating flow cleaning of the cleaning liquid between the inside of the large part and the circulating pump. During the circulating flow cleaning, the ultrasonic cleaning device on the node valve assembly adjacent to the large part is also connected to drive the chain inside the large part to ultrasonically vibrate together, thereby forming a static ultrasonic self-circulating cleaning of the inside of the large part.

[0134] Preferably, a pair of cleaning interfaces on the large piece can be arranged on both sides of the large piece to achieve convection cleaning of the cleaning liquid along the two sides of the large piece.

[0135] In this embodiment, the cleaning system of the tube chain machine can adopt the following multi-mode combination cleaning method: first, the large-piece open static cleaning mode, large-piece open dynamic cleaning mode, whole-machine closed dynamic ultrasonic circulation cleaning mode, whole-machine closed static ultrasonic circulation cleaning mode, pipeline static ultrasonic circulation cleaning mode and large-piece static ultrasonic self-circulation cleaning mode are adopted in sequence to complete the first stage of cleaning of the tube chain machine; then, the pipeline static ultrasonic circulation cleaning mode and the large-piece static ultrasonic self-circulation cleaning mode are alternately adopted to complete several alternating cleaning cycles of the tube chain machine to realize the second stage of cleaning of the tube chain machine; and then the whole-machine closed dynamic ultrasonic circulation cleaning mode and the whole-machine closed static ultrasonic circulation cleaning mode are adopted in sequence to carry out the third stage of cleaning of the tube chain machine.

[0136] In the above-mentioned multi-mode combined cleaning method, except for the large shell-type parts such as the feeding hopper 98, the unloading box 33, the tensioning box 01, the transmission box 102 and the circular box body 53 in the turning guide structure 51 of the conveying pipeline on the tube chain machine, which need to be manually cleaned by removing the cover, the entire conveying pipeline system of the tube chain machine can be cleaned without major disassembly. By utilizing the node valve assembly arranged on the conveying pipeline 29, the overall ultrasonic cycle cleaning and local ultrasonic cycle cleaning of the entire conveying pipeline system of the tube chain machine can be achieved. On the one hand, it facilitates the cleaning and maintenance of the conveying pipeline of the tube chain machine and shortens the time period of cleaning and maintenance. On the other hand, it also improves the cleaning effect.

[0137] Among them, when dynamic ultrasonic cycle cleaning is adopted, the ultrasonic cleaning device 86 can transmit the energy of ultrasonic vibration to the cleaning liquid flowing in the feed pipeline 29, thereby realizing comprehensive ultrasonic cleaning in the feed pipeline 29; when dynamic ultrasonic cycle cleaning is adopted, the chain transmission system of the opened pipe chain machine can realize ultrasonic cleaning while the chain 05 with the scraper plate 30 is moving in the feed pipeline 29, which is beneficial to comprehensively remove the adhesion materials on the chain 05 and the scraper plate 30, thereby improving the cleaning quality of the entire chain 05 and the scraper plate 30; when static ultrasonic cycle cleaning is adopted, a pair of engaging blocks 79-1 on the ultrasonic cleaning device 86 can not only seal and press the chain 05, but also drive the chain 05 to vibrate ultrasonically, thereby improving the global ultrasonic cleaning ability in the feed pipeline 29, thereby further improving the thoroughness of the ultrasonic cycle cleaning inside the pipeline.

[0138] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A tube chain machine, characterized in that: The invention comprises a chain tensioner, a chain transmission device and a pair of material conveying pipelines connected between the chain tensioner and the chain transmission device, a chain passing through the material conveying pipeline, and a scraper plate arranged at intervals on the chain; the chain tensioner comprises a tensioning box and a sprocket assembly rotatably arranged in the tensioning box, and the chain transmission device comprises a transmission box and a sprocket assembly rotatably arranged in the transmission box; the left and right ends of the pair of material conveying pipelines are respectively connected with the interior of the tensioning box and the transmission box, the chain is a closed chain, and the closed chain enters the tensioning box and the transmission box respectively and respectively and correspondingly realizes meshing transmission connection with the sprocket assemblies in the tensioning box and the transmission box; a feeding device and an automatic unloading device are also respectively arranged on the material conveying pipeline; a nitrogen inflation port is also arranged on the box wall of the tensioning box, and a nitrogen inflation block plug connector is arranged on the nitrogen inflation port; a plurality of nodes are also arranged on the material conveying pipeline, and A node valve assembly for closing or opening the internal logistics channel of the feed pipeline is arranged in series at the node position, and the node valve assembly includes a valve body, transition connecting pipes respectively arranged on both sides of the valve body for being connected in series with the feed pipeline, a through hole transversely arranged on the valve body relative to the axis of the transition connecting pipe and connected to the transition connecting pipe, a pair of valve covers respectively and detachably mounted at both ends of the through hole, a pair of valve blocks respectively arranged on one side of the pair of valve covers and sealingly matched with the inner wall of the through hole, and a mating block arranged at the front end of the valve block, the mating blocks at the front end of the pair of valve blocks are abutted against each other along the axial direction of the through hole, and semicircular holes for sealing the internal chain of the feed pipeline are respectively arranged on the mutual mating surfaces of the mating blocks at the front end of the pair of valve blocks, and after the mating blocks at the front end of the pair of valve blocks are mated with each other, the logistics channel between the transition connecting pipes on both sides of the valve body is separated at the valve block, forming a closed state of the node valve assembly.

2. A tube chain machine according to claim 1, characterized in that: The chain tensioning device also includes a pair of slides respectively slidably arranged on the front and rear side walls inside the tensioning box along the left and right directions, a tensioning bracket connected between the left side parts of the pair of slides for tensioning the pair of slides toward the left direction, a pull rod hole opened on the left box wall of the tensioning box, a pull rod passing through the pull rod hole from the left side of the outside of the tensioning box and entering the inside of the tensioning box and connected to the tensioning bracket, a compression spring which is sleeved on the outer circle of the pull rod from the left side of the outside of the tensioning box and supports the left outer wall of the tensioning box, and a compression nut which is threadedly connected to the threaded outer circle at the left end of the outer circle of the pull rod and supports the compression spring. The sprocket assembly in the tensioning box is rotatably arranged on the pair of slides.

3. A tube chain machine according to claim 1, characterized in that: The automatic unloading device includes an unloading box body arranged on the feeding pipeline of the tube chain machine, and an unloading port arranged on the unloading box body. Pipe interfaces are respectively opened at both ends of the unloading box body. The pipe interface at one end of the unloading box body is connected to the feeding inlet of the feeding pipeline, and the pipe interface at the other end of the unloading box body is connected to the feeding outlet of the feeding pipeline. A unloading pipe is also rotatably arranged in the unloading box body. The pipe ports at both ends of the unloading pipe are respectively rotatably connected with the feeding inlet and the feeding outlet of the feeding pipeline, and an unloading control port is axially opened on the side wall of the tube body of the unloading pipe. A servo motor is arranged on the outside of the unloading box body. After the motor shaft of the servo motor is inserted into the unloading box body, a driving gear is connected. A passive gear is connected on the outer circle of the unloading pipe, and the driving gear is meshed with the passive gear.

4. A tube chain machine according to claim 3, characterized in that: A short hopper is also docked at the edge of the material discharge control port of the material discharge pipe to prevent material from overflowing when the material discharge control port is facing upward.

5. A tube chain machine according to claim 3, characterized in that: The automatic unloading device is provided with three working states of closed unloading, static unloading and dynamic unloading; when the automatic unloading device is set to the closed unloading working state, the unloading control port of the unloading pipe is always set upwards through the control of the servo motor; when the automatic unloading device is set to the static unloading working state, the unloading control port of the unloading pipe is always set at a certain angle relative to the up and down directions through the control of the servo motor; when the automatic unloading device is set to the dynamic unloading working state, the unloading pipe is rotated around its own axis at a set speed through the control of the servo motor, thereby realizing dynamic unloading.

6. A tube chain machine according to claim 1, characterized in that: A material conveying pipeline turning guide structure is also provided, and the material conveying pipeline turning guide structure includes a curved pipe arranged at the turning point of the material conveying pipeline of the tube chain machine and a circular box body adjacent to the inner arc side of the curved pipe, the circular box body is connected to the adjacent connection of the curved pipe, and a rotating wheel assembly is arranged in the circular box body, the rotating wheel assembly includes a core shaft and a rotating wheel fixed in the middle part of the core shaft, a pair of coaxial supporting holes are respectively provided at the central parts of both sides of the circular box body, the two ends of the core shaft are respectively rotatably arranged on the supporting holes, a circle of annular guide grooves are provided on the outer circle of the rotating wheel, and the scraper plate on the chain of the tube chain machine contacts the annular guide groove on the outer circle of the rotating wheel when passing through the curved pipe position.

7. The tube chain machine according to claim 1, characterized in that: A pair of flow channel adapter blocks are correspondingly arranged on the other side of the pair of valve covers, and an inner arc surface is arranged on the side of the flow channel adapter block away from the valve cover. When the valve cover is flipped 180 degrees and installed in the opposite direction to the through hole, the pair of flow channel adapter blocks are aligned with each other and at the position where the pair of flow channel adapter blocks are aligned with each other, the inner arc surfaces on the pair of flow channel adapter blocks form a flow channel with an equal diameter that is the same as the inner diameter of the transition connecting pipe, thereby forming an open state of the node valve assembly.

8. The tube chain machine according to claim 1, characterized in that: The transition connecting pipe is connected in series to the feed pipeline via a valve body mounting flange; cleaning interfaces for connecting to a circulating cleaning system are respectively provided on the transition connecting pipes on both sides of the valve body, and detachable plugs are provided on the cleaning interfaces.

9. The tube chain machine according to claim 7, characterized in that: An ultrasonic cleaning device is also provided on the valve cover, and the ultrasonic cleaning device includes an elastic buffer block, a vibrator mounting plate and an ultrasonic vibrator which are sequentially connected between the valve cover and the flow channel adapter block, and the cable of the ultrasonic vibrator is led out from the valve cover and then connected to an external ultrasonic generator; the ultrasonic cleaning device is also provided between the mating block at the front end of the valve block and the valve block, and includes an elastic buffer block, a vibrator mounting plate and an ultrasonic vibrator which are sequentially connected between the valve block and the mating block, and the cable of the ultrasonic vibrator is led out from the valve cover and then connected to an external ultrasonic generator.

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