Double-layer closed guide rail supporting and sealing type material conveying system

Abstract

The invention relates to the field of material conveying, in particular to a double-layer closed guide rail supporting sealing type material conveying system, a step rail supporting base is fixed to the ground, and a sealing main frame body is installed on the step rail supporting base. The double-layer closed guide rail supporting assembly is installed on the upper side and the lower side of the sealing main frame body, the sealing shafting driving unit assembly and the sealing sliding rail supporting driven tensioning assembly, and whole-circle movement track supporting is formed. The anti-tipping sealing elastic chain link assembly is arranged between the upper guide rail and the lower guide rail, and split V-shaped wheels of the anti-tipping sealing elastic chain link assembly are supported by the variable-rigidity V-shaped guide rails. The single balance wheel triggering opening and closing clamp is installed on an installation plate on the outer side of the chain link assembly, and opening and closing of the clamping jaw are controlled through a single triggering mechanism. The system adopts the full-sealing design, dust invasion and accumulation are effectively prevented, the system can adapt to chain tensioning changes and vibration impact, the split V-shaped wheel structure can cope with rail dust accumulation and abrasion, and the system is suitable for high-cleanliness and high-stability material conveying scenes such as food and medicine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material conveying, and more particularly to a double-layer closed guide rail supporting sealed material conveying system. BACKGROUND

[0002] In the field of modern packaging machinery, the stability and cleanliness of the material conveying system directly affect the equipment operation efficiency and product hygiene indicators. The traditional packaging machine conveying system adopts an open single guide rail plus guide groove form to support the conveying chain structure, and the guide rail in the movement path is usually designed as a disconnected layout at the driven end to adapt to the chain tensioning requirement. This non-closed guide rail causes the conveying chain to lose continuous support at the driven tensioning end, which is prone to yaw or even overturning accidents during high-speed operation. At the same time, the support of the traditional guide rail to the chain link is mostly a rigid structure, which is prone to cause rigid impact during long-term operation. Moreover, the existing tensioning mechanism mostly uses a screw to achieve fixed displacement tensioning, which cannot adjust the tensioning force in real time according to the chain wear state or load fluctuation, thereby aggravating the vibration and noise of the transmission system.

[0003] In addition, the open guide rail and chain link assembly are difficult to achieve full-sealing when conveying powdery materials, and material debris and dust are easy to accumulate on the guide rail plane or invade the transmission pair gap, causing chain jamming and wear. In the food, pharmaceutical and other hygiene-sensitive industries, such dust accumulation and pollution problems are particularly prominent, and it is difficult to meet the requirements of high-cleanliness production environment. In addition, the existing packaging machine conveying clamping jaws mostly use multiple independent triggering mechanisms to achieve clamping and opening and closing actions, which not only have a complex structure, but also cause equipment layout tension, which is not conducive to compact design and maintenance.

[0004] Although some conveying chain systems in the prior art attempt to improve the guide rail structure or sealing method, there are still obvious deficiencies. For example, the product clamping and overturning conveying chain system provided in Publication No. CN216470265U is simple in structure but cannot be applied to a dusty environment, and accumulated dust is easy to cause chain wear and jamming. The single guide rail support form is also difficult to meet the requirements of high load and high stability. The cross-chain suspension conveying device disclosed in Publication No. CN119976192A improves the running stability through the few-shaped guide rail, but the structure is complex and not compact, cannot effectively withstand the overturning moment caused by material transportation cantilever, and the fixed traction guide rail cannot achieve continuous closed support at the driven tensioning end, and rigid contact still aggravates impact and wear. Therefore, it is urgent to develop a material conveying system with high sealing, high stability and compact structure to meet the modern packaging production requirements of high cleanliness and high load. SUMMARY

[0005] Therefore, the present application provides a double-layer closed guide rail supporting sealed material conveying system to solve the technical problems in the background art.

[0006] In order to achieve the above object, the present application adopts the following technical solutions: The application discloses a double-layer closed guide rail supporting sealed material conveying system, which comprises a stepped track supporting base, a single pendulum wheel trigger opening and closing clamp hand, an anti-tilting sealed elastic chain link assembly, a double-layer closed guide rail supporting assembly and a sealed shaft system driving unit assembly. The stepped track supporting base is provided with a stepped track for supporting and triggering the single pendulum wheel trigger opening and closing clamp hand. The single pendulum wheel trigger opening and closing clamp hand is installed outside the anti-tilting sealed elastic chain link assembly. The sealed shaft system driving unit assembly is installed in the internal hollow region surrounded by the double-layer closed guide rail supporting assembly; the sealed shaft system driving unit assembly is engaged with the anti-tilting sealed elastic chain link assembly to realize power transmission. The anti-tilting sealed elastic chain link assembly is installed between the double-layer closed guide rail supporting assemblies. The V-shaped guide rails of the double-layer closed guide rail supporting assemblies support the split V-shaped wheels on the anti-tilting sealed elastic chain link assembly.

[0007] Preferably, the double-layer closed guide rail supporting sealed material conveying system further comprises a sealed main frame body and a sealed slide rail supporting driven tensioning assembly; the sealed main frame body and the sealed slide rail supporting driven tensioning assembly are both installed in the internal hollow region surrounded by the double-layer closed guide rail supporting assembly; the sealed shaft system driving unit assembly is installed on one side of the sealed main frame body, and the sealed slide rail supporting driven tensioning assembly is installed on the other side of the sealed main frame body; the sealed slide rail supporting driven tensioning assembly controls the tensioning of the conveying chain system.

[0008] Preferably, the double-layer closed guide rail supporting sealed material conveying system is provided with a single pendulum wheel trigger opening and closing clamp hand which is arranged in a left-right symmetrical manner and comprises a shell, a transmission assembly and a pair of clamp fingers; the transmission assembly is arranged inside the shell; the pair of clamp fingers are opened and closed through the transmission assembly.

[0009] Preferably, the anti-tilting sealed elastic chain link assembly comprises sealed double-V supporting load chain links and idle chain links; the sealed double-V supporting load chain links are movably connected with the idle chain links.

[0010] Preferably, in the above-mentioned double-layer closed guide rail support sealed material conveying system, the sealed double-V support load chain link comprises a main frame, a double-V roller floating assembly and a central shaft sealing assembly; the main frame is used for bearing external working load and providing a mounting base; the double-V roller floating assembly is connected in a hinged manner on both sides of the main frame and has axial elastic floating capability through internal inner and outer compression springs, so that the V-shaped wheel self-adaptively adheres to the support rail surface; and the central shaft sealing assembly seals the central shaft.

[0011] Preferably, in the above-mentioned double-layer closed guide rail support sealed material conveying system, the sealed double-V support load chain link, wherein the main frame comprises a lower load chain link plate, a load mounting plate and an upper load chain link plate; the double-V roller floating assembly comprises a V-shaped wheel support, a V-shaped wheel shaft, a V-shaped wheel buckle cover, a roller outer compression spring, a split V-shaped wheel, a roller inner compression spring, a roller sealing ring, a V-shaped wheel positioning sleeve, a hole elastic retainer, a washer, a chain link shaft and a deep groove ball bearing; and the central shaft sealing assembly comprises a sealing intermediate cylinder, an intermediate cylinder positioning sleeve, a skeleton sealing ring and a needle bearing; the upper load chain link plate and the lower load chain link plate are installed on the upper and lower sides of the load mounting plate; the chain link shaft is hingedly installed with the upper load chain link plate and the lower load chain link plate through the needle bearing; the V-shaped wheel support is installed on the upper and lower ends of the chain link shaft; the sealing ring and the washer are installed between the V-shaped wheel support and the upper load chain link plate; the split V-shaped wheel is symmetrically installed on the V-shaped wheel support through the V-shaped wheel shaft and fixes the V-shaped wheel shaft; the V-shaped wheel positioning sleeve is installed on the left and right sides of the split V-shaped wheel; the V-shaped wheel positioning sleeve is fixed through the hole elastic retainer on the outside of the V-shaped wheel positioning sleeve; the roller inner compression spring and the roller outer compression spring are installed in the split V-shaped wheel and are penetrated by the V-shaped wheel shaft; the V-shaped wheel buckle cover is installed between the outer end surface of the split V-shaped wheel and the V-shaped wheel support; the split V-shaped wheel is provided with a groove for installing the roller sealing ring on the outer circular surface and the inner side surface thereof; a gap is left between the split V-shaped wheels and between the split V-shaped wheels and the V-shaped wheel buckle cover; the split V-shaped wheel moves in the axial direction under the action of the roller inner compression spring and the roller outer compression spring; the sealing intermediate cylinder is installed in the middle of the chain link shaft; the deep groove ball bearing is installed on the upper and lower sides of the sealing intermediate cylinder; the intermediate cylinder positioning sleeve is installed on the outside of the deep groove ball bearing; and the skeleton sealing ring is installed between the intermediate cylinder positioning sleeve and the sealing intermediate cylinder to seal the sealing intermediate cylinder.

[0012] Preferably, in the above-mentioned double-layer closed rail support sealed material conveying system, the double-layer closed rail support assembly comprises an upper rail and a lower rail; wherein the upper rail is provided with an alignment guide positioning key at the rail connection; the sealing rail support driven tensioning assembly is guided by the alignment guide positioning key when tensioning outward; the lower rail connection is connected by the cooperation of the boss and the groove to make the anti-tilting sealed elastic chain link assembly realize the transition at the connection.

[0013] Preferably, in the above-mentioned double-layer closed rail support sealed material conveying system, the upper rail comprises an upper linear segment rail support base and an upper circular arc segment rail support base; the lower rail comprises a lower linear segment rail support base, a linear segment V-shaped rail, a lower circular arc segment rail support base and a circular arc segment V-shaped rail. The upper linear segment rail support base and the lower linear segment rail support base are respectively installed at the upper and lower installation guide bars of the sealing main frame body, the linear segment V-shaped rail is installed in the groove of the upper linear segment rail support base and the lower linear segment rail support base, the upper circular arc segment rail support base and the lower circular arc segment rail support base are respectively installed at the upper and lower installation plates of the sealed shaft system driving unit assembly and the upper and lower installation plates of the sealing rail support driven tensioning assembly, and the circular arc segment V-shaped rail is installed in the groove of the circular arc segment rail support base.

[0014] Preferably, in the above-mentioned double-layer closed rail support sealed material conveying system, the sealed shaft system driving unit assembly comprises a driving assembly mounting bracket, an upper end cover, a deep groove ball bearing, a nylon pre-tightening pad, a hub positioning sleeve, a driving wheel disc, a driving wheel shaft, a tapered roller bearing, a lower end cover, a speed reducer, a motor, a sealing ring and a skeleton sealing ring; the motor and the speed reducer are connected and installed at the lower end cover stop, the lower end cover is installed below the driving assembly mounting bracket and connected with the sealing ring at the connection, the tapered roller bearing is installed above the lower end cover, the driving wheel shaft is connected in transmission with the output shaft of the speed reducer through a common flat key, and the shaft shoulder of the driving wheel shaft is on the inner ring of the tapered roller bearing, the driving wheel shaft is suspended in the middle of the driving assembly mounting bracket and sealed by the skeleton sealing ring, the driving wheel disc is installed in the middle installation part of the driving assembly mounting bracket by key connection and sealed by the sealing ring at the shaft shoulder groove through the shaft shoulder positioning on the driving wheel shaft, the hub positioning sleeve is installed above the driving wheel disc and sealed by the sealing ring and the skeleton sealing ring, the nylon pre-tightening pad is installed above the hub positioning sleeve, the deep groove ball bearing is installed above the nylon pre-tightening pad, and the upper end cover is installed above the driving assembly mounting bracket and connected with the sealing ring at the inner ring.

[0015] Preferably, in the above-mentioned double-layer closed guide rail supporting sealed material conveying system, the sealing slide rail supporting driven tension assembly comprises a driven tension support, a tension slide block sealing cylinder, a linear slide rail, a slide block, a sealing ring, and a tension cylinder, the tension slide block sealing cylinder is installed below the driven tension support, the upper and lower surfaces of the tension slide block sealing cylinder are provided with grooves, the sealing ring is installed in the grooves, the slide block in the tension slide block sealing cylinder is installed on the driven tension support, the linear slide rail in the tension slide block sealing cylinder is installed on the sealing main frame body mounting plate, the tension cylinder is installed in the sealing main frame body on the same side of the sealing slide rail supporting driven tension assembly, the installation opening on the sealing main frame body is sealed through a sealing end cover, the slide block below the sealing slide rail supporting driven tension assembly guides the linear slide rail, and the tension cylinder pushes out the sealing slide rail supporting driven tension assembly to realize the tensioning of the conveying chain system.

[0016] Compared with the prior art, the present application has the following advantages: 1. The double-layer closed guide rail supporting sealed material conveying system provided by the present application adopts a V-shaped guide rail of an upper and lower double-layer guide rail to firmly support a split V-shaped wheel on the intermediate chain link assembly, the meshing form of the V-shaped guide rail and the split V-shaped wheel can not only inhibit the tilting caused by the load cantilever, but also prevent dust from accumulating on the guide rail and the roller, and can play a self-cleaning role in the movement process, the split V-shaped wheel is provided with a compression spring inside, which can adapt to the situation that there is dust accumulation on the track and the roller wear, not only ensures that the split V-shaped wheel is in close contact with the track, but also avoids the upper and lower rollers being too tight due to the dust accumulation on the track, and the guide rail supporting assembly adopts a rigid support base plus a flexible V-shaped guide rail form, which not only ensures the overall rigid support, but also can absorb the vibration impact in the movement process of the conveying chain, thereby increasing the running stability.

[0017] 2. The double-layer closed guide rail supporting sealed material conveying system provided by the present application, wherein the driven tension side is also provided with a circular arc segment guide rail supporting assembly, at the joint of the circular arc segment and the linear segment guide rail supporting assembly, the circular arc segment guide rail supporting assembly can be in the same plane with the linear segment guide rail supporting assembly when it moves outward with the driven tension assembly through the alignment guide positioning key, and the sealing chain link assembly can smoothly pass through the transition section through the cooperation of the linear segment V-shaped guide rail boss and the circular arc segment V-shaped guide rail groove, thereby realizing the whole-circle support of the guide rail supporting assembly following the movement track.

[0018] 3. The double-layer closed guide rail support sealed material conveying system provided by the present application, wherein the single pendulum wheel triggers the opening and closing of the clamping hand to cooperate with the stepped track support track to realize single-wheel, single-track triggering of the clamping hand clamping and the clamping arm opening and closing, the stepped track is at different heights to trigger the pendulum wheel to swing at different angles, drive the stepped trigger slider to move, and the protrusions at different positions of the stepped trigger slider lift the synchronous trigger push rod or T-shaped trigger push rod to drive the left and right clamping jaws to clamp or the clamping arms to open and close, which not only makes the structure compact and reduces the cost, but also ensures the synchronization of the left and right symmetrical mechanism movements.

[0019] 4. The double-layer closed guide rail support sealed material conveying system provided by the present application, wherein the sealed link assembly and the sealed drive unit assembly are in the form of cooperating with the skeleton seal to realize the full-system sealing during the transportation of materials, prevent the accumulation or invasion of material debris and dust into the transmission pair gap, avoid the jamming of the link, prolong the service life of the entire system, and reduce the pollution risk in the food, medicine and other health-sensitive industries.

[0020] 5. The double-layer closed guide rail support sealed material conveying system provided by the present application, wherein the sealed sliding rail support driven tensioning assembly and the tensioning cylinder simultaneously realize the tensioning of the conveying chain system, and the structure can make the chain self-adaptively adjust the tensioning force according to the wear state or load fluctuation through the pneumatic tensioning mode, thereby reducing the vibration and noise of the transmission system. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0022] Figure 1 It is a structure diagram of the double-layer closed guide rail support sealed material conveying system in the present application. Figure 2 It is a structure diagram of the stepped track support base in the present application. Figure 3 It is a structure diagram of the single pendulum wheel trigger opening and closing clamping hand in the present application. Figure 4 It is an internal structure diagram of the single pendulum wheel trigger opening and closing clamping hand in the present application. Figure 5 It is a structure diagram of the anti-tilting sealed elastic link assembly in the present application. Figure 6 It is a structure diagram of the sealed double-V support load link in the present application. Figure 7 It is a structure diagram of the double-layer closed guide rail support assembly in the present application. Figure 8 Figure 1 is a schematic diagram of the butt joint structure of the linear segment V-shaped guide rail and the circular arc segment V-shaped guide rail of the present application; Figure 9 Figure 2 is a schematic diagram of the overall structure of the sealed shaft system driving unit assembly in the present application; Figure 10 Figure 3 is a sectional view of the sealing layout of the sealed shaft system driving unit assembly in the present application; Figure 11 Figure 4 is a schematic diagram of the structure of the sealed slide rail supporting driven tension assembly in the present application; Reference signs: Ladder track supporting base 1; ladder track 101; welded base 102; single pendulum wheel trigger opening and closing clamp hand 2; clamp arm lower buckle cover 201; clamp arm upper buckle cover 202; packaging bag 203; clamp hand base upper buckle cover 204; clamp hand base lower buckle cover 205; pendulum spring 206; trigger pendulum wheel 207; handle torsional spring 208; torsional base 209; trigger handle 210; outer pair of clamp fingers 211; inner pair of clamp fingers 212; inner pair of clamp finger pull rod 213; outer pair of clamp finger pull rod 214; synchronous trigger push rod 215; opening and closing rack 216; opening and closing gear 217; gear pull rod 218; T-shaped trigger push rod 219; linear bearing 220; opening and closing compression spring 221; ladder trigger sliding block 222; anti-rollover sealed elastic chain link assembly 3; sealed double V-shaped supporting load link 31; lower load link plate 3101; load mounting plate 3102; upper load link plate 3103; V-shaped wheel support 3104; V-shaped wheel shaft 3105; V-shaped wheel buckle cover 3106; outer compression spring of roller 3107; split V-shaped wheel 3108; inner compression spring of roller 3109; roller sealing ring 3110; V-shaped wheel positioning sleeve 3111; hole elastic retainer 3112; washer 3113; link shaft 3114; deep groove ball bearing 3115; sealed intermediate cylinder 3116; intermediate cylinder positioning sleeve 3117; skeleton sealing ring 3118; needle roller bearing 3119; sealing ring 3120; unloaded link 32; double-layer closed guide rail supporting assembly 4; upper layer linear segment guide rail supporting base 401; upper layer circular arc segment guide rail supporting base 402; alignment guide positioning key 403; lower layer linear segment guide rail supporting base 404; linear segment V-shaped guide rail 405; lower layer circular arc segment guide rail supporting base 406; circular arc segment V-shaped guide rail 407; sealed shaft system driving unit assembly 5; driving assembly mounting frame 501; upper end cover 502; nylon pre-tightening pad 503; hub positioning sleeve 504; driving wheel disc 505; driving wheel shaft 506; tapered roller bearing 507; lower end cover 508; speed reducer 509; motor 510; sealed main frame body 6; sealed slide rail supporting driven tension assembly 7; driven tension support 701; tension sliding block sealing cylinder 702; linear slide rail 703; sliding block 704; tension cylinder 705. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0024] The double-layer closed guide rail support sealed material conveying system provided by the embodiment comprises a stepped track support base 1, a single pendulum wheel trigger opening and closing clamp hand 2, an anti-tilting sealed elastic chain link assembly 3, a double-layer closed guide rail support assembly 4, a sealed shafting driving unit assembly 5, a sealed main frame body 6, and a sealed slide rail support driven tensioning assembly 7. Figure 1 The stepped track support base 1 is installed on the ground as a base body. The sealed main frame body 6 is installed on the plane of the stepped track support base 1. The double-layer closed guide rail support assembly 4 is bolted on the upper and lower sides of the sealed main frame body 6, the sealed shafting driving unit assembly 5, and the sealed slide rail support driven tensioning assembly 7. The guide rail forms a whole support following the movement track. The anti-tilting sealed elastic chain link assembly 3 is installed between the double-layer closed guide rail support assemblies 4. The split V-shaped wheels on the anti-tilting sealed elastic chain link assembly 3 are supported by the variable rigidity V-shaped guide rails of the double-layer closed guide rail support assemblies 4. The single pendulum wheel trigger opening and closing clamp hand 2 is bolted on the installation plate of the anti-tilting sealed elastic chain link assembly 3 towards the outside. The sealed shafting driving unit assembly 5 is bolted on one side of the sealed main frame body 6. The sealed slide rail support driven tensioning assembly 7 is installed on the other side of the sealed main frame body 6.

[0025] As shown in Figure 2 The stepped track support base 1 comprises a stepped track 101 and a welded base 102. The stepped track 101 is installed on the plane of the welded base 102. The stepped track 101 supports the trigger pendulum wheel on the single pendulum wheel trigger opening and closing clamp hand 2. The different heights of the stepped track 101 make the trigger pendulum wheel at different heights, so that the single pendulum wheel trigger opening and closing clamp hand 2 performs different actions.

[0026] As shown in Figure 3 and Figure 4The single pendulum trigger open-close gripper 2 is shown, including the lower clamping arm cover 201, the upper clamping arm cover 202, the packaging bag 203, the upper clamping base cover 204, the lower clamping base cover 205, the pendulum torsion spring 206, the trigger pendulum 207, the handle torsion spring 208, the torsion base 209, the trigger handle 210, the outer pair of clamping fingers 211, the inner pair of clamping fingers 212, the inner pair of clamping finger pull rods 213, the outer pair of clamping finger pull rods 214, the synchronous trigger push rod 215, the open-close rack 216, the open-close gear 217, the gear pull rod 218, the T-shaped trigger push rod 219, the linear bearing 220, the open-close compression spring 221, and the stepped trigger slider 222. The lower clamping arm cover 201 and the upper clamping arm cover 202 are connected by bolts to form the clamping arm, the upper clamping base cover 204 and the lower clamping base cover 205 are connected by bolts to form the clamping base, the trigger pendulum 207 is hingedly installed at the middle support below the lower clamping base cover 205, the trigger pendulum 207 is in contact with the stepped track 101 on the stepped track support base 1, during movement, the different heights of the stepped track 101 support the trigger pendulum 207 at different heights, thereby realizing different actions of the single pendulum trigger open-close gripper 2, and resetting through the pendulum torsion spring 206, the handle torsion spring 208, the torsion base 209, and the trigger handle 210 are coaxially installed at the mounting holes of the lower clamping arm cover 201, the torsion base 209 is fixedly connected with the trigger handle 210 through a pin shaft and can rotate coaxially, one side of the inner pair of clamping finger pull rods 213 and the outer pair of clamping finger pull rods 214 is hingedly connected with the mounting holes at both ends of the torsion base 209, and the other side is hingedly connected with the outer pair of clamping fingers 211 and the inner pair of clamping fingers 212, the outer pair of clamping fingers 211 and the inner pair of clamping fingers 212 are installed at the other two mounting holes of the lower clamping arm cover 201, the swinging end of the trigger handle 210 is hingedly connected with the slot hole on the synchronous trigger push rod 215, the synchronous trigger push rod 215 passes through the mounting hole in front of the upper clamping base cover 204 and is inserted into the linear bearing 220, the left and right clamping arms are bolted to the open-close rack 216, the open-close rack 216 is installed at the linear slide way protruding from the upper clamping base cover 204 and the lower clamping base cover 205 and is engaged with the open-close gear 217, the open-close gear 217 is installed on the mounting hole between the upper clamping base cover 204 and the lower clamping base cover 205 and the rear swing lever thereof is hingedly connected with the gear pull rod 218, the other side of the gear pull rod 218 is hingedly connected with the T-shaped trigger push rod 219, the linear bearing 220 is installed inside the rear mounting plate of the upper clamping base cover 204, the T-shaped trigger push rod 219 passes through the open-close compression spring 221 and is inserted into the linear bearing 220, the stepped trigger slider 222 is installed at the linear slide way protruding from the upper and lower clamping base covers of the clamping base and is hingedly connected with the trigger pendulum 207 below, and the overall structure of the single pendulum trigger open-close gripper 2 is arranged in left-right symmetry.

[0027] As shown in Figure 5 The anti-rollover sealing elastic chain link assembly 3, including a sealing double-V support load chain link 31, an unloaded chain link 32, a needle bearing 3119, and a sealing ring 3120. The sealing double-V support load chain link 31 is hingedly installed with the unloaded chain link 32 through the needle bearing 3119, and the unloaded chain link plate 32 is provided with a groove, and the sealing ring 3120 is installed in the groove on the unloaded chain link plate 32. The sealing ring 3120 is installed at the hinged position to seal the hinged shaft system.

[0028] As shown in Figure 6The sealing double V support load chain link 31 is shown, which includes the lower load chain link plate 3101, the load mounting plate 3102, the upper load chain link plate 3103, the V wheel support 3104, the V wheel shaft 3105, the V wheel buckle cover 3106, the roller outer compression spring 3107, the split V wheel 3108, the roller inner compression spring 3109, the roller sealing ring 3110, the V wheel positioning sleeve 3111, the hole elastic retainer ring 3112, the washer 3113, the chain link shaft 3114, the deep groove ball bearing 3115, the sealing intermediate cylinder 3116, the intermediate cylinder positioning sleeve 3117, the skeleton sealing ring 3118, the needle roller bearing 3119, and the sealing ring 3120. The upper load chain link plate 3103 and the lower load chain link plate 3101 are bolted to the upper and lower sides of the load mounting plate 3102, the chain link shaft 3114 is hingedly installed with the upper load chain link plate 3103 and the lower load chain link plate 3101 through the needle roller bearing 3119, the V wheel support 3104 is bolted to the upper and lower ends of the chain link shaft 3114, the V wheel support 3104 is installed with the sealing ring 3120 and the washer 3113 between the V wheel support 3104 and the upper load chain link plate, which ensures sealing while enhancing support and wear resistance, the split V wheel 3108 is symmetrically installed on the V wheel support 3104 through the V wheel shaft 3105, and the V wheel shaft 3105 is fixed through the screws at both ends, the split V wheel 3108 is installed with the V wheel positioning sleeve 3111 on the left and right sides inside the split V wheel 3108, the V wheel positioning sleeve 3111 is fixed through the hole elastic retainer ring 3112 on the outside, the roller inner compression spring 3109 and the roller outer compression spring 3107 are installed inside the split V wheel 3108 and are penetrated by the V wheel shaft 3105, the V wheel buckle cover 3106 is installed between the outer end face of the split V wheel 3108 and the V wheel support 3104, the split V wheel 3108 is provided with a groove at the outer circular face and the inside plane thereof for installing the roller sealing ring 3110 to ensure sealing, and gaps are left between the split V wheels 3108 and between the split V wheels 3108 and the V wheel buckle cover 3106, the split V wheel 3108 can move along the axial direction under the action of the roller inner compression spring 3109 and the roller outer compression spring 3107, the split structure ensures that the split V wheels 3108 are in close contact with the track and avoids over-tight contact, the sealing intermediate cylinder 3116 is installed in the middle of the chain link shaft 3114, the deep groove ball bearing 3115 is installed on the upper and lower sides of the sealing intermediate cylinder 3116, the deep groove ball bearing 3115 is installed with the intermediate cylinder positioning sleeve 3117 on the outside, and the intermediate cylinder positioning sleeve 3117 is installed with the skeleton sealing ring 3118 between the sealing intermediate cylinder 3116, which realizes the sealing of the sealing intermediate cylinder 3116.

[0029] As Figure 7As shown, the double-layer closed guide rail support assembly 4 includes an upper linear segment guide rail support base 401, an upper circular arc segment guide rail support base 402, an alignment guide positioning key 403, a lower linear segment guide rail support base 404, a linear segment V-shaped guide rail 405, a lower circular arc segment guide rail support base 406, and a circular arc segment V-shaped guide rail 407. The upper linear segment guide rail support base 401 and the lower linear segment guide rail support base 404 are respectively bolted to the upper and lower mounting guide bars of the sealed main frame body 6. The linear segment V-shaped guide rail 405 is bolted to the grooves of the upper linear segment guide rail support base 401 and the lower linear segment guide rail support base 404. The upper circular arc segment guide rail support base 402 and the lower circular arc segment guide rail support base 406 are respectively bolted to the upper and lower mounting plates of the sealed shaft system driving unit assembly 5 and the sealed slide rail support driven tensioning assembly 7. The circular arc segment V-shaped guide rail 407 is bolted to the groove of the circular arc segment guide rail support base. The alignment guide positioning key 403 is bolted to the transition connection between the linear segment guide rail support base 401 and the circular arc segment guide rail support base 402. When the sealed slide rail support driven tensioning assembly 7 is tensioned and moved outward, it can be guided by the alignment guide positioning key 403, and the linear segment guide rail support base 401 and the circular arc segment guide rail support base 402 are on the same horizontal plane.

[0030] As shown, Figure 8 The linear segment V-shaped guide rail 405 and the circular arc segment V-shaped guide rail 407 are connected. The boss of the linear segment V-shaped guide rail 405 cooperates with the groove of the circular arc segment V-shaped guide rail 407 to allow the anti-tilting sealed elastic chain link assembly 3 to smoothly pass through the transition section.

[0031] As shown, Figure 9 and Figure 10As shown, the sealed shaft drive unit assembly 5 includes a drive assembly mounting bracket 501, an upper end cover 502, a deep groove ball bearing 3115, a nylon preload washer 503, a hub positioning sleeve 504, a drive wheel disc 505, a drive wheel axle 506, a tapered roller bearing 507, a lower end cover 508, a reducer 509, a motor 510, a skeleton sealing ring 3118, and a sealing ring 3120. The motor 510 is connected to the reducer 509 and is bolted to the stop of the lower end cover 508. The lower end cover 508 is bolted to the lower part of the drive assembly mounting bracket 501, and a sealing ring 3120 is installed at the connection. The tapered roller bearing 507 is mounted above the lower end cover 508. The drive wheel axle 506 is connected to the output shaft of the reducer 509 via a standard flat key, and the shaft of the drive wheel axle 506... The shoulder rests on the inner ring of the tapered roller bearing 507. The suspended portion between the drive wheel shaft 506 and the drive assembly mounting bracket 501 is sealed by a skeleton seal ring 3118. The drive wheel disc 505 is keyed and mounted on the middle mounting portion of the drive assembly mounting bracket 501, and is positioned by the shaft shoulder on the drive wheel shaft 506 and sealed by a seal ring 3120 at the shaft shoulder groove. The hub positioning sleeve 504 is mounted above the drive wheel disc 505 and is sealed by a seal ring 3120 and a skeleton seal ring 3118. The nylon preload washer 503 is mounted above the hub positioning sleeve 504. The deep groove ball bearing 3115 is mounted above the nylon preload washer 503. The upper end cover 502 is bolted to the drive assembly mounting bracket 501 and a seal ring 3120 is installed at the inner ring connection.

[0032] like Figure 11 As shown, the sealed slide rail supports the driven tensioning assembly 7, which includes a driven tensioning bracket 701, a tensioning slider sealing cylinder 702, a linear slide rail 703, a slider 704, a sealing ring 3120, and a tensioning cylinder 705. The tensioning slider sealing cylinder 702 is bolted to the underside of the driven tensioning bracket 701. Grooves are provided on both the upper and lower surfaces of the tensioning slider sealing cylinder 702, and the sealing ring 3120 is installed in the grooves to achieve a sealing function. The slider 704 inside the tensioning slider sealing cylinder 702 is mounted on the driven tensioning bracket 701. On the movable tension bracket 701, a linear slide rail 703 is mounted on the mounting plate of the sealed main frame 6. The tension cylinder 705 is installed inside the sealed main frame 6 on the same side as the sealed slide rail support driven tensioning assembly 7, and the mounting port on the sealed main frame 6 is sealed by a sealing end cap. The slider 704 below the sealed slide rail support driven tensioning assembly 7 guides the linear slide rail 703. The tension cylinder 705 pushes out the sealed slide rail support driven tensioning assembly 7 to achieve tensioning of the conveyor chain system.

[0033] The operation process in this embodiment is implemented as follows: This invention provides a double-layer closed guide rail supported sealed material conveying system, such as... Figure 1 As shown, the main steps are as follows: S1: The sealed double V-support load chain link 31 in the anti-tipping sealed elastic chain link assembly 3 undertakes the function of material transportation. The sealed double V-support load chain link 31 is sandwiched in the middle by the upper and lower guide rails in the double-layer closed guide rail support assembly 4, thereby providing firm support for the load and suppressing the tipping caused by the load cantilever. At the same time, the split V-shaped wheel 3108 and its internal roller external compression spring 3107 and roller internal compression spring 3109 can adapt to the situation of dust accumulation on the track and roller wear, ensuring that the upper and lower rollers are in close contact with the track, and avoiding the working condition of the upper and lower rollers being too tight due to dust accumulation on the track.

[0034] S2: The anti-tipping sealed elastic link assembly 3 drives the single pendulum trigger opening and closing gripper 2 to move around the stepped track support base 1. The single pendulum trigger opening and closing gripper 2 cooperates with the stepped track 101 to realize single wheel and single track triggering to clamp the single pendulum trigger opening and closing gripper 2 and open and close the gripper arm. When the anti-tipping sealed elastic link assembly 3 moves to different heights of the stepped track 101, it triggers the pendulum 207 to swing at different angles, which drives the stepped trigger slider 222 to move. The protrusions at different positions of the stepped trigger slider 222 push up the synchronous trigger push rod 215 or T-shaped trigger push rod 219 to drive the left and right side grippers to clamp or the gripper arm to open and close. This structure not only makes the structure compact and reduces costs, but also ensures the synchronicity of the movement of the left and right symmetrical mechanism.

[0035] S3: At the point where the anti-tipping sealing elastic link assembly 3 connects with the upper straight section guide rail support base 401 and the upper arc section guide rail support base 402, the alignment guide positioning key 403 ensures that the upper arc section guide rail support base 402 is on the same plane as the sealing slide rail support driven tensioning assembly 7 when it moves outward. Furthermore, the boss of the straight section V-shaped guide rail 405 and the groove of the arc section V-shaped guide rail 407 cooperate to allow the anti-tipping sealing elastic link assembly 3 to smoothly pass through this transition section, thereby achieving full-circumference support of the guide rail support assembly following the motion trajectory.

[0036] S4: The sealed slide rail supports the driven tensioning component 7 and the tensioning cylinder 705 work together to achieve tensioning of the conveyor chain system. This structure can make the chain adaptively adjust the tension force according to the wear state or load fluctuation through pneumatic tensioning, thereby reducing the vibration and noise of the transmission system.

[0037] S5: The drive wheel 505 in the sealed shaft drive unit assembly 5 engages with the sealed intermediate cylinder 3116 in the anti-tipping sealed elastic chain link assembly 3 to achieve power transmission, so that the anti-tipping sealed elastic chain link assembly 3 can stably transport materials in the double-layer closed guide rail support assembly 4.

[0038] S6: By full-system sealing, prevent material debris and dust accumulation or intrusion into the transmission pair gap, avoid chain link jamming and prolong the service life of the whole system, can be cleaned and disinfected by water, reduce the pollution risk in food, medicine and other health sensitive industries.

[0039] The double-layer closed guide rail support sealed material conveying system disclosed by the application can be applied to packaging machine material conveying scenes with high cleanliness and high stability requirements. The system can realize stable support of the chain link, prevent dust accumulation and intrusion through a full-system sealing system, effectively ensure hygiene cleanliness, and can also adapt to chain impact vibration and maintain chain transmission system tensioning, thereby meeting the requirements of food and medicine packaging production lines on hygiene level and operation stability.

[0040] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0041] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-layer closed guide rail supported sealed material conveying system, characterized in that, include: Stepped track support base, single pendulum wheel triggered opening and closing gripper, anti-tipping sealed elastic chain link assembly, double-layer closed guide rail support assembly and sealed shaft drive unit assembly; The stepped track support base is provided with a stepped track for supporting and triggering the single pendulum wheel to trigger the opening and closing gripping action; The single pendulum wheel trigger opening and closing gripper is installed on the outside of the anti-tipping sealed elastic chain link assembly; The sealed shaft drive unit assembly is installed in the hollow area enclosed by the double-layer closed guide rail support assembly; the sealed shaft drive unit assembly meshes with the anti-tipping sealed elastic chain link assembly to achieve power transmission; The anti-tipping sealed elastic chain link assembly is installed between the double-layer closed guide rail support assembly; The V-shaped guide rail of the double-layer closed guide rail support assembly supports the split V-shaped wheel on the anti-tipping sealed elastic chain link assembly.

2. The double-layer closed guide rail supported sealed material conveying system according to claim 1, characterized in that, Also includes: The sealed main frame and sealed slide rail support the driven tensioning assembly; The sealed main frame and the sealed slide rail support driven tensioning assembly are both installed in the internal hollow area enclosed by the double-layer closed guide rail support assembly; The sealing shaft drive unit assembly is installed on one side of the sealing main frame, and the sealing slide rail support driven tensioning assembly is installed on the other side of the sealing main frame; the sealing slide rail support driven tensioning assembly controls the tension of the conveyor chain system.

3. The double-layer closed guide rail supported sealed material conveying system according to claim 1, characterized in that, The single-wheel-triggered opening and closing gripper has a symmetrical left-right arrangement and includes a housing, a transmission assembly, and opposing gripping fingers; the transmission assembly is located inside the housing; the opposing gripping fingers open and close via the transmission assembly.

4. The double-layer closed guide rail supported sealed material conveying system according to claim 1, characterized in that, The anti-tipping sealed elastic link assembly includes a sealed double V-support load link and an unloaded link; the sealed double V-support load link is movably connected to the unloaded link.

5. A double-layer closed guide rail supported sealed material conveying system according to claim 4, characterized in that, The sealed double-V support load chain link includes a main frame, a double-V roller floating assembly, and a central shaft sealing assembly. The main frame is used to bear external working loads and provide a mounting base. The double-V roller floating assembly is hinged to both sides of the main frame and obtains axial elastic floating capability through internal inner and outer compression spring groups, so that the V-shaped wheels adaptively conform to the support track surface. The central shaft sealing assembly seals the central shaft.

6. A double-layer closed guide rail supported sealed material conveying system according to claim 5, characterized in that, The sealed double-V-support load chain link includes a main frame comprising a lower load chain link plate, a load mounting plate, and an upper load chain link plate; a double-V roller floating assembly comprising a V-wheel bracket, a V-wheel shaft, a V-wheel cover, an outer compression spring for the roller, a split V-wheel, an inner compression spring for the roller, a roller seal ring, a V-wheel positioning sleeve, a retaining ring for the bore, a washer, a chain link shaft, and a deep groove ball bearing; a central shaft sealing assembly comprising a sealing intermediate cylinder, an intermediate cylinder positioning sleeve, a skeleton seal ring, a needle roller bearing, and a seal ring; the upper and lower load chain link plates are mounted on the upper and lower sides of the load mounting plate, the chain link shaft is hinged to the upper and lower load chain link plates via the needle roller bearing, the V-wheel bracket is mounted on the upper and lower ends of the chain link shaft, the seal ring and washer are installed between the V-wheel bracket and the upper load chain link plate, and the split V-wheel is symmetrically mounted on the V-wheel bracket via the V-wheel shaft, with the V-wheel... The shaft is fixed, and V-shaped wheel positioning sleeves are respectively installed on the left and right sides inside the split V-shaped wheel. The outer side of the V-shaped wheel positioning sleeve is fixed with an elastic retaining ring through a hole. The inner compression spring and the outer compression spring of the roller are installed inside the split V-shaped wheel and are passed through by the V-shaped wheel shaft. A V-shaped wheel buckle cover is installed between the outer end face of the split V-shaped wheel and the V-shaped wheel bracket. The outer circular surface and the inner plane of the split V-shaped wheel are provided with grooves to install the roller sealing ring. Gaps are left between the left and right split V-shaped wheels and between them and the V-shaped wheel buckle cover. The split V-shaped wheel moves axially under the action of the inner compression spring and the outer compression spring of the roller. The sealing intermediate cylinder is installed in the middle of the chain link shaft. The deep groove ball bearings are respectively installed on the upper and lower sides of the sealing intermediate cylinder. The intermediate cylinder positioning sleeve is installed on the outside of the deep groove ball bearing. The skeleton sealing ring is installed between the intermediate cylinder positioning sleeve and the sealing intermediate cylinder to seal the sealing intermediate cylinder.

7. A double-layer closed guide rail supported sealed material conveying system according to claim 2, characterized in that, The double-layer closed guide rail support assembly includes an upper guide rail and a lower guide rail; wherein the upper guide rail is provided with an alignment guide positioning key at the guide rail connection; the sealed slide rail support driven tensioning assembly is guided by the alignment guide positioning key when it is tensioned outward; the lower guide rail connection is made transitional at the connection point of the anti-tipping sealed elastic chain link assembly through the cooperation of a boss and a groove.

8. A double-layer closed guide rail supported sealed material conveying system according to claim 7, characterized in that, The upper guide rail includes an upper straight section guide rail support base and an upper arc section guide rail support base; the lower guide rail includes a lower straight section guide rail support base, a straight section V-shaped guide rail, a lower arc section guide rail support base, and an arc section V-shaped guide rail. The upper linear guide rail support base and the lower linear guide rail support base are respectively installed at the upper and lower mounting guide bars of the sealed main frame. The linear V-shaped guide rail is installed in the grooves of the upper and lower linear guide rail support bases. The upper arc-shaped guide rail support base and the lower arc-shaped guide rail support base are respectively installed at the upper and lower mounting plates of the sealed shaft drive unit assembly and the upper and lower mounting plates of the sealed slide rail support driven tensioning assembly. The arc-shaped V-shaped guide rail is installed in the grooves of the upper and lower arc-shaped guide rail support bases.

9. A double-layer closed guide rail supported sealed material conveying system according to claim 1, characterized in that, The sealed shaft drive unit assembly includes a drive assembly mounting bracket, an upper end cover, a deep groove ball bearing, a nylon preload washer, a hub positioning sleeve, a drive wheel disc, a drive wheel axle, a tapered roller bearing, a lower end cover, a reducer, a motor, a sealing ring, and a skeleton sealing ring. The motor is connected to the reducer and mounted at the stop of the lower end cover. The lower end cover is mounted below the drive assembly mounting bracket, and a sealing ring is installed at the connection. The tapered roller bearing is mounted above the lower end cover. The drive wheel axle is connected to the reducer output shaft via a standard flat key, and the shoulder of the drive wheel axle abuts against the tapered roller bearing. The inner ring of the sub-bearing, the suspended part between the drive wheel shaft and the drive assembly mounting frame is sealed by a skeleton seal ring, the drive wheel disk is connected by a key and installed in the middle mounting part of the drive assembly mounting frame, and is positioned by the shaft shoulder on the drive wheel shaft and sealed by a seal ring at the shaft shoulder groove, the hub positioning sleeve is installed above the drive wheel disk and is sealed by a seal ring and a skeleton seal ring, the nylon preload washer is installed above the hub positioning sleeve, the deep groove ball bearing is installed above the nylon preload washer, the upper end cover is installed above the drive assembly mounting frame and a seal ring is installed at the inner ring connection.

10. A double-layer closed guide rail supported sealed material conveying system according to claim 2, characterized in that, The sealed slide rail support driven tensioning assembly includes a driven tensioning bracket, a tensioning slider sealing cylinder, a linear slide rail, a slider, a sealing ring, and a tensioning cylinder. The tensioning slider sealing cylinder is installed below the driven tensioning bracket. Grooves are provided on both the upper and lower surfaces of the tensioning slider sealing cylinder, and the sealing ring is installed within the grooves. The slider inside the tensioning slider sealing cylinder is installed on the driven tensioning bracket. The linear slide rail inside the tensioning slider sealing cylinder is installed on the sealing main frame mounting plate. The tensioning cylinder is installed inside the sealing main frame on the same side as the sealed slide rail support driven tensioning assembly, and the mounting port on the sealing main frame is sealed by a sealing end cap. The slider below the sealed slide rail support driven tensioning assembly is guided by the linear slide rail. The tensioning cylinder pushes out the sealed slide rail support driven tensioning assembly to achieve tensioning of the conveyor chain system.

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