Circulating power and free chain plate conveying system

Abstract

The invention relates to the technical field of conveying systems, in particular to a circulation power and free chain plate conveying system which comprises a circulation power and free chain plate conveyor and a conveying chain plate at the upper end of the circulation power and free chain plate conveyor, a tray is movably installed on the conveying chain plate, and a first tray positioning piece and a second tray positioning piece are installed on the two sides of the conveying chain plate respectively and used for positioning and clamping the tray; the device has the beneficial effects that circulating feeding is achieved through the single chain plate, space is saved, cost is reduced, flexible stopping of the tray is achieved through the multiple sets of material blocking air cylinders, the buffering performance of the side edge of the tray can be achieved through the additionally-arranged supporting plate installation sleeve frame without changing the structure of the tray through cooperation of the anti-collision mechanism and the middle supporting plate at the bottom, and the service life of the tray is prolonged. And pre-cushioning before material blocking of the middle supporting plate at the bottom is achieved, the situation that tray positioning deviates and is damaged in the rapid stopping state is avoided, the conveying stability of the circulating power and free chain plate is improved, and the overall service life of the tray is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying systems, and in particular to a circulating accumulation chain conveying system. Background Art

[0002] With the rapid development of industrial automation and logistics automation, traditional material conveying methods can no longer meet the needs of modern production lines. As a new type of material conveying equipment, the circulating accumulation chain conveyor system has gradually become an important part of the industrial automation field due to its high efficiency, flexibility and stability. The traditional use of double-layer conveyor lines to achieve circular conveying occupies a large space and has a high cost.

[0003] In the prior art, there is a pallet and crankshaft loading and unloading accumulation conveyor line with publication number CN111703839A, which relates to the field of automobile casting technology. The pallet includes a pallet panel, and the top surface of the pallet panel is relatively provided with a sliding support and a fixed support; hook plates are respectively provided on both sides of the bottom surface of the pallet panel, and a positioning pin is provided in the middle of the bottom surface of the pallet panel. The structure design of the crankshaft loading and unloading accumulation conveyor line is scientific and reasonable. Among them, the small end hoist, double-layer roller and non-adjustable pallet are saved to effectively solve the problems of high cost, complicated design and non-adjustable pallet.

[0004] In order to solve the problem that pallets cannot be recycled, the prior art uses a stopper to block the subsequent pallets from moving forward.

[0005] However, in actual use, the stopper contacts both sides of the pallet when it stops, which can easily cause the pallet positioning to shift or the parts to skew over a long period of time, which not only affects the service life of the pallet, but also affects the stability of the loading and unloading parts.

[0006] Therefore, the present invention proposes a circulating accumulation chain conveying system to solve the problems of pallet positioning deviation and pallet damage caused by loading and unloading of existing pallets. A single chain plate is used to realize circulating feeding, save space, reduce costs, and intelligently stop the pallet through multiple sets of material blocking cylinders while weakening the impact of the material blocking cylinders on the pallet, thereby avoiding pallet positioning deviation and pallet damage, extending service life and improving production efficiency. Summary of the invention

[0007] The object of the present invention is to provide a circulating accumulation chain conveyor system to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: A circulating accumulation chain plate conveying system, including a circulating accumulation chain plate conveyor and a conveying chain plate at its upper end. A tray is movably installed on the conveying chain plate. On both sides of the conveying chain plate, a tray positioning member one and a tray positioning member two are respectively installed for positioning and clamping the tray. Sensors are respectively arranged on both sides of the tray positioning member one. Oppositely installed on both sides of the tray positioning member two are a stop cylinder one and a stop cylinder two for stopping the stop cylinder two. Positioning holes and positioning groove plates are respectively opened on both sides of the tray. A bottom middle support plate and side rib plates are fixedly installed at the lower end of the tray. An anti-collision mechanism is arranged on the outer surface of the bottom middle support plate through bolts. The anti-collision mechanism includes a cylinder contact side plate, a central guide rod, an elastic extrusion groove plate, and a curved substrate. One end of the elastic extrusion groove plate is fixedly connected to one end of the cylinder contact side plate, and one end of the central guide rod is arranged inside the elastic extrusion groove plate.

[0009] Preferably, the support plate installation sleeve is installed in a "C"-shaped plate structure outside the bottom middle support plate. Limiting edge grooves are respectively opened on the inner walls of both sides of the support plate installation sleeve. The inner surface of the limiting edge groove is movably connected to the outer surface of the cylinder contact side plate. The cylinder contact side plate is integrally in an "I"-shaped plate structure.

[0010] Preferably, circular notches are respectively opened on both sides of the limiting edge groove. A telescopic sleeve rod and a buffer spring wire are arranged on the inner surface of the circular notch. The buffer spring wire is movably sleeved outside the telescopic sleeve rod. Both ends of the telescopic sleeve rod and the buffer spring wire are fixedly connected to the surface of the cylinder contact side plate.

[0011] Preferably, a central groove is opened on the central inner wall of the cylinder contact side plate. The inner surface of the central groove is slidably connected to the outer surface of the central guide rod. A pre-contact plate is fixedly installed at the outer end of the central guide rod. A flat groove is arranged at the other end of the central guide rod.

[0012] Preferably, a connecting toothed rod is fixedly installed on the surface of the flat groove. A toothed piece is meshed and rotated on the outer surface of the connecting toothed rod. A movable push arm is fixedly connected to the toothed piece. A deformation elastic piece is hingedly installed at the other end of the movable push arm.

[0013] Preferably, a limiting column is fixedly installed on one side of the curved substrate. There are two groups of the curved substrates. The two groups of the curved substrates are symmetrically distributed about the horizontal central axis of the limiting column. A parallel groove is arranged between the two groups of the curved substrates. The deformation elastic piece is movably installed inside the parallel groove. One end of the deformation elastic piece is rotatably connected to the outer surface of the limiting column, and the other end of the deformation elastic piece is rotatably connected to the end of the curved substrate away from the limiting column.

[0014] Preferably, a fitting elastic touch plate is fixedly mounted on the outer surfaces of both ends of the limiting column, a curved spring is hinged on the inner arc surface of the fitting elastic touch plate, and the other end of the curved spring is fixedly connected to the outer surface of the curved substrate.

[0015] Preferably, an extrusion bag plate is provided on the inner side of the elastic extrusion groove plate, and an air guide tube is connected to the inner wall of one end of the extrusion bag plate. The air guide tube passes through the elastic extrusion groove plate and the inner wall of the fitting frame and extends to the outside of the bottom middle support plate.

[0016] Preferably, a receiving groove is provided at the output end of the air duct, an active sealing piece is movably mounted on the inner surface of the receiving groove, a rubber plug is fixedly mounted on the outer surface of the active sealing piece, and the outer surface of the rubber plug is adapted to fit in with the inner wall of the air duct.

[0017] Preferably, the active sealing member is a hollow cylindrical structure, the inner wall of the active sealing member is respectively provided with air injection holes, one end of the active sealing member away from the rubber plug is fixedly connected to a return spring, and the other end of the return spring is fixedly connected to the inner wall of the receiving groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes a circulating accumulation chain conveying system, which adopts a single chain to realize circulating feeding, saves space, reduces costs, realizes flexible stopping of the pallet through multiple sets of material blocking cylinders, cooperates with the bottom middle pallet through an anti-collision mechanism, and does not need to change the structure of the pallet. The buffering performance of the pallet side can be achieved by using the added pallet mounting sleeve, and pre-cushioning can be achieved before the bottom middle pallet blocks the material, thereby avoiding the displacement and damage of the pallet positioning in the rapid stopping state, improving the stability of the circulating accumulation chain conveying, and extending the overall service life of the pallet. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a schematic diagram of the three-dimensional structure of the circulating accumulation chain conveyor of the present invention; Figure 2 The connection structure between the conveyor chain plate and the pallet of the present invention is shown in FIG. Figure 1 ; Figure 3 The connection structure between the conveyor chain plate and the pallet of the present invention is shown in FIG. Figure 2 ; Figure 4 This is a schematic diagram of the structure of the tray in the stopped state of the present invention; Figure 5 It is a schematic diagram of the exploded structure of the pallet and the pallet positioning member of the present invention; Figure 6 It is a bottom-up three-dimensional structural schematic diagram of the tray of the present invention; Figure 7It is a schematic diagram of the connection structure between the bottom middle support plate and the support plate mounting sleeve frame of the present invention; Figure 8 This is a schematic diagram of the disassembled structure of the pallet of the present invention; Fig. 9 It is a schematic diagram of the top cross-sectional structure of the connection between the support plate mounting sleeve and the fitting frame of the present invention; Fig.10 It is a schematic diagram of a top cross-sectional structure of a fitting frame of the present invention; Fig.11 For the present invention Fig.10 A schematic diagram of the enlarged structure at point A; Fig.12 It is a schematic diagram of the internal structure of the fitting frame of the present invention; Fig.13 The structural schematic diagram of the curved substrate state of the elastic touch panel of the present invention is shown; Fig.14 This is a schematic diagram of the connection structure between the extrusion bag plate and the airway tube of the present invention; Fig.15 For the present invention Fig.14 Schematic diagram of the enlarged structure at B.

[0019] In the figure: 1, circulating accumulation chain conveyor; 11, conveying chain; 2, pallet; 3, material blocking cylinder 1; 4, material blocking cylinder 2; 5, pallet positioning piece 1; 6, pallet positioning piece 2; 21, positioning slot plate; 20, positioning hole; 22, bottom middle support plate; 221, support plate mounting frame; 2210, limit side groove; 222, fitting frame; 2220, shock absorbing bin; 223, cylinder contact side plate; 2231, telescopic sleeve rod; 2232, buffer elastic wire; 224, center guide rod; 2241, pre- Touch plate; 2242, connecting gear rod; 2243, gear plate; 2244, movable push arm; 2245, deformation spring; 225, elastic extrusion groove plate; 2250, avoidance groove; 2251, extrusion bag plate; 2252, air guide tube; 2253, active blocking part; 22530, jet hole; 22531, rubber plug; 22532, reset spring; 226, curved substrate; 2261, limit column; 2262, fitting elastic touch plate; 2263, curved spring; 23, side rib plate. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] For example, see Figure 1 - Fig.15 The present invention provides a technical solution: a circulating accumulation chain conveyor system, comprising a circulating accumulation chain conveyor 1 and a conveying chain plate 11 at the upper end thereof, a pallet 2 is movably mounted on the conveying chain plate 11, pallet positioning members 1 5 and pallet positioning members 2 6 are respectively mounted on both sides of the conveying chain plate 11 for positioning and clamping the pallet 2, sensors are respectively arranged on both sides of the pallet positioning member 1 5, blocking cylinders 1 3 and blocking cylinders 2 4 are relatively mounted on both sides of the pallet positioning member 2 6 for stopping the blocking cylinders 2 4, positioning holes 20 are respectively opened on both sides of the pallet 2 and positioning slot plate 21, the lower end of the tray 2 is fixedly mounted with a bottom middle support plate 22 and a side rib plate 23, the outer surface of the bottom middle support plate 22 is fixedly mounted with a support plate mounting sleeve 221 by bolts, and an anti-collision mechanism is arranged on the support plate mounting sleeve 221, the anti-collision mechanism includes a cylinder contact side plate 223, a center guide rod 224, an elastic extrusion slot plate 225 and a curved base plate 226, one end of the elastic extrusion slot plate 225 is fixedly connected with one end of the cylinder contact side plate 223, and one end of the center guide rod 224 is arranged on the inner side of the elastic extrusion slot plate 225; In this embodiment, a plurality of trays 2 are slidably arranged on the conveying chain plate 11. Due to the effects of gravity and friction, the trays 2 can move synchronously with the conveying chain plate 11. The stop cylinder 24 is the loading or unloading point. When the tray 2 moves to this position, the loading and unloading work is completed. Reference Figure 4 As shown, when the sensor on the left side of the pallet positioning member 5 detects the front pallet, the blocking cylinder 3 operates to block the front pallet. At this time, the positioning column at the output end of the pallet positioning member 5 extends out to cooperate with the positioning hole 20 on the side of the pallet 2, and the positioning slot plate 21 cooperates with the pallet positioning member 2 6 to jointly position and correct the pallet 2; when the sensor on the right side of the pallet positioning member 5 detects the rear pallet, if there is a pallet at the left sensor at this time, the blocking cylinder 2 4 operates to block the rear pallet; if there is no pallet at the left sensor position at this time, the blocking cylinder 2 4 does not operate And the pallet 2 is not blocked, and a blocking cylinder three is also provided on the lower layer of the conveying chain plate 11. When there is a pallet at the blocking cylinder two 4, if the blocking cylinder three detects the presence of a pallet, the blocking cylinder three also runs to block the pallet, and waits for the blocking cylinder two 4 to release it, and then the blocking cylinder three releases it. Through the above steps, the intelligent interception and release of the pallet 2 on the conveying chain plate 11 is realized, ensuring that the pallet 2 is recycled after feeding, replacing the traditional double-layer conveyor line method. The conveyor line only uses a single chain plate to realize circular feeding, saving space and reducing costs.

[0022] Embodiment 2. On the basis of Embodiment 1, in order to protect both sides of the bottom middle pallet 22 and prevent it from being impacted by the material blocking cylinder, the present embodiment further proposes that: the pallet mounting sleeve frame 221 is sleeved and installed outside the bottom middle pallet 22 in a "C"-shaped plate structure. Limiting edge grooves 2210 are respectively opened on the inner walls of both sides of the pallet mounting sleeve frame 221. The inner surface of the limiting edge groove 2210 is movably connected to the outer surface of the cylinder contact side plate 223. The cylinder contact side plate 223 is integrally in an "I"-shaped plate structure; circular notches are respectively opened on both sides of the limiting edge groove 2210. A telescopic sleeve rod 2231 and a buffer spring wire 2232 are arranged on the inner surface of the circular notch. The buffer spring wire 2232 is movably sleeved outside the telescopic sleeve rod 2231. Both ends of the telescopic sleeve rod 2231 and the buffer spring wire 2232 are respectively fixedly connected to the surface of the cylinder contact side plate 223; In this embodiment, by opening the limiting edge groove 2210 on the inner wall of the bottom middle pallet 22, the fitting frame 222 is adaptively embedded and installed with the inner wall of the limiting edge groove 2210 and installed with fastening bolts. The outer matching pallet mounting sleeve frame 221 forms a C-shaped surrounding primary protection for the lower position of the bottom middle pallet 22. By using the shock absorption chamber 2220 arranged in the inner cavity of the fitting frame 222, the cylinder contact side plate 223 is placed. When the outer side of the pallet mounting sleeve frame 221 is impacted by the extension of the material blocking cylinder, it relies on the pallet mounting sleeve frame 221 for preliminary blocking protection to avoid directly impacting the bottom middle pallet 22 and the upper tray 2. And by using the mutual cooperation of the telescopic sleeve rod 2231 and the buffer spring wire 2232, the telescopic sleeve rod 2231 plays a role in guiding and limiting the movement of the side rib plate 23. The buffer spring wire 2232 generates elastic compression deformation with the external impact, thereby effectively reducing the direct damage of the external impact to the structural fitting frame 222 and providing multiple anti-collision barriers for the bottom middle pallet 22 to avoid damage; at the same time, the telescopic sleeve rod 2231 and the buffer spring wire 2232 can also help the cylinder contact side plate 223 reset when the material blocking cylinder is removed.

[0023] Embodiment 3. On the basis of Embodiment 2, in order to reduce the direct impact on the cylinder contact side plate 223, the present embodiment further proposes that: a central groove is opened on the central inner wall of the cylinder contact side plate 223. The inner surface of the central groove is slidably connected to the outer surface of the central guide rod 224. A pre-contact plate 2241 is fixedly installed at the outer end of the central guide rod 224. A flat groove is arranged at the other end of the central guide rod 224; a connecting toothed rod 2242 is fixedly installed on the surface of the flat groove. A toothed piece 2243 is meshed and rotated on the outer surface of the connecting toothed rod 2242. A movable push arm 2244 is fixedly connected to the toothed piece 2243. The other end of the movable push arm 2244 is hinged and installed with a deformation elastic piece 2245; In the embodiment, refer to Fig.10As shown, the center guide rod 224 passes through the center inner wall of the cylinder contact side plate 223. When the cylinder contact side plate 223 is subjected to external impact, the blocking cylinder first contacts the pre-touch plate 2241 connected to one end of the center guide rod 224, and then drives the center guide rod 224 to move inside the shock absorbing bin 2220. There is a certain buffer space between the pre-touch plate 2241 and the cylinder contact side plate 223. At the same time, the center guide rod 224 moves forward away from the connecting toothed rod 2242 connected to one end of the pre-touch plate 2241. The toothed plates 2243 on both sides respectively drive the connected movable push arms 2244 to swing inwards relatively. During the advancement of the center guide rod 224, the movable push arms 2244 continuously push the deformed spring sheets 2245 connected on both sides outward. At this time, the deformed spring sheets 2245 are pushed by external force to form an arc Deformation: It should be noted that when the deformable spring piece 2245 is in the initial state without being pushed by the movable push arm 2244, the deformable spring piece 2245 is consistent with the curvature and direction of the curved substrate 226, and the surface is flipped when pushed by an external force. The curved deformable spring piece 2245 formed in this way will first collide with the inner wall of the shock-absorbing bin 2220, and will not cause the center guide rod 224 to directly touch the cylinder contact side plate 223, providing a certain resistance for the center guide rod 224 when it is pushed by an external force. On the other hand, the deformable spring piece 2245 collide with the inner wall of the shock-absorbing bin 2220, and the movable push arm 2244 not only applies a pushing force to the deformable spring piece 2245, but also ensures the support of the deformable spring piece 2245. The two complement each other and promote each other; it further solves the problem of pallet positioning offset and pallet damage caused by the interruption of loading and unloading of existing pallets.

[0024] Embodiment 4: On the basis of embodiment 3, in order to reduce the damage to the fitting frame 222 caused by external impact, this embodiment further proposes: a limiting column 2261 is fixedly installed on one side of the curved substrate 226, and the curved substrate 226 is provided with two groups, the two groups of curved substrates 226 are symmetrically distributed about the horizontal central axis of the limiting column 2261, and a parallel groove is provided between the two groups of curved substrates 226, and a deformation elastic piece 2245 is movably installed inside the parallel groove, one end of the deformation elastic piece 2245 is rotationally connected to the outer surface of the limiting column 2261, and the other end of the deformation elastic piece 2245 is rotationally connected to an end of the curved substrate 226 away from the limiting column 2261; a fitting elastic touch plate 2262 is fixedly installed on the outer surface of both ends of the limiting column 2261, and a curved spring 2263 is hinged on the inner arc surface of the fitting elastic touch plate 2262, and the other end of the curved spring 2263 is fixedly connected to the outer surface of the curved substrate 226; In this embodiment, refer to Fig.12 - Fig.13As shown, when the pre-touch plate 2241 reaches the outer side of the cylinder contact side plate 223, the cylinder contact side plate 223 is pushed inward, pushing one side of the curved substrate 226. Since the end of the curved substrate 226 away from the cylinder contact side plate 223 is fixedly connected to the inner wall of the shock-absorbing chamber 2220, when the curved substrate 226 is pushed by the cylinder contact side plate 223, it will be deformed. When the curved substrate 226 exceeds the bearing range of the applied stress, the fitting elastic touch plate 2262 connected to the outer side of the curved substrate 226 will pop outward and collide with the inner wall of the shock-absorbing chamber 2220, thereby further weakening the impact force of the cylinder contact side plate 223, avoiding vibration of the bottom middle support plate 22, ensuring the stability of the pallet 2 during transportation and stopping, and avoiding damage to the pallet 2 and other connecting components.

[0025] Embodiment 5, on the basis of embodiment 4, in order to make the deformed elastic extrusion slot plate 225 play an auxiliary role, this embodiment further proposes: an extrusion bag plate 2251 is arranged on the inner side of the elastic extrusion slot plate 225, and an air guide tube 2252 is connected to the inner wall of one end of the extrusion bag plate 2251, and the air guide tube 2252 penetrates the inner wall of the elastic extrusion slot plate 225 and the fitting frame 222 and extends to the outside of the bottom middle support plate 22; a receiving groove is provided at the output end of the air guide tube 2252, and a movable The active sealing member 2253 has a rubber plug 22531 fixedly mounted on its outer surface, and the outer surface of the rubber plug 22531 is adapted and embedded with the inner wall of the air guide tube 2252; the active sealing member 2253 is a hollow cylindrical structure, and the inner wall of the active sealing member 2253 is respectively provided with air injection holes 22530, and one end of the active sealing member 2253 away from the rubber plug 22531 is fixedly connected with a return spring 22532, and the other end of the return spring 22532 is fixedly connected with the inner wall of the storage groove; In this embodiment, the pop-up fitting elastic touch plate 2262 will squeeze the two sides of the elastic extrusion slot plate 225, and at this time, the extrusion bag plate 2251 inside the elastic extrusion slot plate 225 is affected by the external pressure, and the internal pressure is ejected from the only outlet air guide pipe 2252. At this time, the active blocking member 2253 is popped out by the pressure, and the return spring 22532 is stretched outward. When the active blocking member 2253 ejects the active blocking member 2253, the jet hole 22530 is exposed, thereby releasing the pressure inside the extrusion bag plate 2251. When the extrusion bag plate 2251 is no longer pushed and restored by the fitting elastic touch plate 2262, the active blocking member 225 The air injection hole 22530 and the rubber plug 22531 are re-set by the reverse elastic force of the reset spring 22532, and are plugged back into the air guide tube 2252. The reason why the rubber plug 22531 is connected to the outer end of the air guide tube 2252 is to enhance the sealing performance of the air guide tube 2252; and the reason why these structures are designed on the inner side of the elastic extrusion groove plate 225 is to combine the shock absorption and collision prevention, and at the same time, the gas generated by squeezing the extrusion bag plate 2251 is discharged from the output port of the air guide tube 2252, facing the conveying chain plate 11, so as to achieve auxiliary cleaning of the conveying chain plate 11 to avoid dust, and further extend the overall service life of the circulating accumulation chain plate conveyor 1.

[0026] In actual use, first, fix the parts on the pallet 2, start the equipment to transport the conveyor chain plate 11 and the upper pallet 2, when the sensor on the left side of the pallet positioning member 5 detects the front pallet, the blocking cylinder 3 runs to block the front pallet, at this time, the positioning column at the output end of the pallet positioning member 5 extends out to cooperate with the positioning hole 20 on the side of the pallet 2, the positioning slot plate 21 cooperates with the pallet positioning member 26 to jointly position and correct the pallet 2, at this time, the side of the pallet 2 is stopped in time by the blocking cylinder, when the cylinder contacts the side plate 223 to withstand external impact, the blocking cylinder first conflicts with the pre-touch plate 2241 connected to one end of the center guide rod 224, and then The center guide rod 224 is driven to move toward the inside of the shock absorbing chamber 2220. There is a certain buffer space between the pre-touch plate 2241 and the cylinder contact side plate 223. At the same time, the connecting toothed rod 2242 connected to one end of the center guide rod 224 away from the pre-touch plate 2241 moves forward accordingly. The toothed plates 2243 on both sides respectively drive the connected movable push arms 2244 to swing inwards relatively under the action of meshing. During the advancement of the center guide rod 224, the movable push arms 2244 continuously push the deformed spring sheets 2245 connected on both sides outward. At this time, the deformed spring sheets 2245 are pushed by external force to form an arc-shaped deformation. Subsequently, when the pre-touch plate 2241 is in contact with the cylinder, the movable push arms 2244 are pushed outwards. When the plate 2241 reaches the outer side of the cylinder contact side plate 223, the cylinder contact side plate 223 is pushed inward to push one side of the curved base plate 226. Since the end of the curved base plate 226 away from the cylinder contact side plate 223 is fixedly connected to the inner wall of the shock absorbing chamber 2220, when the curved base plate 226 is pushed by the cylinder contact side plate 223, it will be deformed. When the curved base plate 226 exceeds the tolerance range of the applied stress, the fitting elastic touch plate 2262 connected to the outer side of the curved base plate 226 will pop outward and contact the inner wall of the shock absorbing chamber 2220, thereby further weakening the impact force of the cylinder contact side plate 223 and avoiding the bottom middle support The vibration of plate 22 ensures the stability of pallet 2 during transportation and stopping, and avoids damage to pallet 2 and other connecting parts. When the sensor on the right side of pallet positioning part 1 5 detects the rear pallet, if there is a pallet at the left sensor at this time, blocking cylinder 2 4 will run to block the rear pallet; if there is no pallet at the left sensor position at this time, blocking cylinder 2 4 will not run and will not block pallet 2, and blocking cylinder 3 is also provided on the lower layer of conveying chain plate 11. When there is a pallet at blocking cylinder 2 4, if blocking cylinder 3 detects a pallet, blocking cylinder 3 will also run to block the pallet, and wait for blocking cylinder 2 4 to release it before blocking cylinder 3 releases it.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circulating accumulation chain conveyor system, comprising a circulating accumulation chain conveyor (1) and a conveying chain (11) at its upper end, wherein a pallet (2) is movably mounted on the conveying chain (11), characterized in that: On both sides of the conveying chain plate (11), a first pallet positioning member (5) and a second pallet positioning member (6) are respectively installed for positioning and clamping the pallet (2). Sensors are respectively arranged on both sides of the first pallet positioning member (5). On opposite sides of the second pallet positioning member (6), a first stop cylinder (3) and a second stop cylinder (4) are relatively installed for stopping the second stop cylinder (4). Positioning holes (20) and positioning groove plates (21) are respectively formed on both sides of the pallet (2). A bottom middle support plate (22) and side rib plates (23) are fixedly installed at the lower end of the pallet (2). An anti-collision mechanism is arranged on the outer surface of the bottom middle support plate (22) through bolts. The anti-collision mechanism includes a cylinder contact side plate (223), a central guide rod (224), an elastic extrusion groove plate (225), and a curved substrate (226). One end of the elastic extrusion groove plate (225) is fixedly connected to one end of the cylinder contact side plate (223), and one end of the central guide rod (224) is arranged inside the elastic extrusion groove plate (225).

2. A circulating accumulation chain conveyor system according to claim 1, characterized in that: The support plate mounting sleeve (221) is in a "C"-shaped plate structure and is sleeved and installed outside the bottom middle support plate (22). Limiting edge grooves (2210) are respectively formed on the inner walls of both sides of the support plate mounting sleeve (221). The inner surface of the limiting edge groove (2210) is movably connected to the outer surface of the cylinder contact side plate (223). The cylinder contact side plate (223) is in an overall "I"-shaped plate structure.

3. A circulating accumulation chain conveyor system according to claim 2, characterized in that: Circular notches are respectively formed on both sides of the limiting edge groove (2210). A telescopic sleeve rod (2231) and a buffer spring wire (2232) are arranged on the inner surface of the circular notch. The buffer spring wire (2232) is movably sleeved outside the telescopic sleeve rod (2231). Both ends of the telescopic sleeve rod (2231) and the buffer spring wire (2232) are fixedly connected to the surface of the cylinder contact side plate (223).

4. A circulating accumulation chain conveyor system according to claim 3, characterized in that: A central groove is formed on the central inner wall of the cylinder contact side plate (223). The inner surface of the central groove is slidably connected to the outer surface of the central guide rod (224). A pre-contact plate (2241) is fixedly installed at the outer end of the central guide rod (224). A flat groove is arranged at the other end of the central guide rod (224).

5. A circulating accumulation chain conveyor system according to claim 4, characterized in that: A connecting toothed rod (2242) is fixedly installed on the surface of the flat groove. A toothed piece (2243) is meshed and rotated on the outer surface of the connecting toothed rod (2242). A movable push arm (2244) is fixedly connected to the toothed piece (2243). A deformation elastic piece (2245) is hinged and installed at the other end of the movable push arm (2244).

6. A circulating accumulation chain conveyor system according to claim 5, characterized in that: A limiting column (2261) is fixedly mounted on one side of the curved substrate (226), and two groups of the curved substrate (226) are provided. The two groups of the curved substrates (226) are symmetrically distributed about the horizontal central axis of the limiting column (2261), and a parallel groove is provided between the two groups of the curved substrates (226). The deformable spring sheet (2245) is movably mounted inside the parallel groove, and one end of the deformable spring sheet (2245) is rotatably connected to the outer surface of the limiting column (2261), and the other end of the deformable spring sheet (2245) is rotatably connected to an end of the curved substrate (226) away from the limiting column (2261).

7. A circulating accumulation chain conveyor system according to claim 6, characterized in that: The outer surfaces of both ends of the limiting column (2261) are fixedly mounted with a fitting elastic touch plate (2262), the inner arc surface of the fitting elastic touch plate (2262) is hinged with a curved spring (2263), and the other end of the curved spring (2263) is fixedly connected to the outer surface of the curved substrate (226).

8. The circulating accumulation chain conveyor system according to claim 1, characterized in that: An extrusion bag plate (2251) is provided on the inner side of the elastic extrusion slot plate (225), and an air guide tube (2252) is connected to the inner wall of one end of the extrusion bag plate (2251). The air guide tube (2252) passes through the inner wall of the elastic extrusion slot plate (225) and the fitting frame (222) and extends to the outside of the bottom middle support plate (22).

9. A circulating accumulation chain conveyor system according to claim 8, characterized in that: The output end of the air guide tube (2252) is provided with a receiving groove, an active sealing member (2253) is movably mounted on the inner surface of the receiving groove, a rubber plug (22531) is fixedly mounted on the outer surface of the active sealing member (2253), and the outer surface of the rubber plug (22531) is adapted to be embedded with the inner wall of the air guide tube (2252).

10. A circulating accumulation chain conveyor system according to claim 9, characterized in that: The active sealing member (2253) is in the form of a hollow cylindrical structure, and jet holes (22530) are respectively provided on the inner wall of the active sealing member (2253). One end of the active sealing member (2253) away from the rubber plug (22531) is fixedly connected to a return spring (22532), and the other end of the return spring (22532) is fixedly connected to the inner wall of the storage groove.

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