Fork throwing machine

Abstract

The invention discloses a fork throwing machine, and belongs to the technical field of food packaging, the fork throwing machine comprises a rack, a storage device, a throwing device and a plurality of feeding devices arranged on the rack, and each feeding device comprises a centrifugal separation turntable, a detection mechanism, an anti-blocking mechanism, a conveying mechanism and a fork returning mechanism; the storage device comprises a plurality of storage mechanisms; the putting device is located below the storage device and used for receiving the table forks falling out of the storage boxes and putting the table forks into the meal boxes. By means of the anti-blocking mechanism, the table forks in the abnormal state can be sent back into the centrifugal separation rotating disc, blocking of the discharging opening is effectively avoided, the fork throwing efficiency is guaranteed, and the automation degree is high; the table forks can be temporarily stored through the storage device, continuous operation of the equipment can be ensured, the overall rhythm of a production line can be maintained, the table forks of multiple batches or different specifications can be treated at the same time, the use flexibility is improved, the shutdown risk of the overall equipment is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of food packaging, and particularly to a fork inserting machine. Background Art

[0002] In the production and packaging process of instant foods in barrels, bowls or cups, disposable plastic forks or tableware made of degradable materials are usually pre-placed inside the packaging box, thus improving the convenience of consumers' eating. So that consumers can enjoy hot food at any time outdoors, in the office or other occasions where it is inconvenient to use conventional tableware. During the placement of tableware such as forks, in order to improve the fork inserting efficiency, a fork inserting device is usually used for automatic placement.

[0003] The applicant retrieved and obtained the following prior art. Specifically, the patent with the publication number CN211766798U discloses an automatic fork inserting mechanism, which is characterized in that: it includes a frame, a centrifugal separation turntable, a feeding conveyor belt, a return conveyor belt, a fork inserting device, and a material transporting device; the centrifugal separation turntable is installed on the frame; the discharge port of the centrifugal separation turntable is connected to the feeding conveyor belt; the feeding conveyor belt is connected to the material transporting device; the return conveyor belt is located on the side of the feeding conveyor belt and is connected to the feeding conveyor belt by an inclined plate; the return conveyor belt is connected to the centrifugal separation turntable; the fork inserting device is installed on the frame and is located above the material transporting device. This utility model is configured with a fork feeding detection sensor II and a fork returning detection sensor to realize the function of replenishing forks in the material box on the aggregate device. At the same time, a fork shortage detection sensor is configured so that instant foods in barrels or bowls after fork insertion will not have the situation of lacking forks.

[0004] It can be seen from the above patent that although this automatic fork inserting mechanism can realize the function of replenishing forks in the material box on the aggregate device and avoid the situation of lacking forks in instant foods in barrels or bowls, in the actual use process, due to the high-speed rotation of the centrifugal separation turntable, the tableware is thrown to the edge of the turntable by the centrifugal force and discharged from the discharge port. However, due to the size and structural limitations of the discharge port, the tableware is prone to accumulate at the discharge port. Especially when the number of tableware is large, the passing capacity of the discharge port is difficult to meet the use requirements of the rapid discharge of the tableware, which is not only prone to blockage and affect the fork inserting efficiency, but also reduces the stability and reliability of the fork inserting.

[0005] In addition, the existing fork inserting machines usually adopt the "instant placement" mode, that is, the tableware is directly placed from the automatic fork inserting mechanism into the food box (i.e., the container for holding foods such as barrels, bowls or cups). When it is necessary to pause fork insertion (such as temporary adjustment of the production line), the staff needs to synchronously stop the relevant upstream fork inserting mechanism, such as stopping the centrifugal separation turntable, which is likely to disrupt the operation rhythm of the entire production line and affect the production efficiency. Summary of the Invention

[0006] The main purpose of the present invention is to solve one of the technical problems existing in the prior art. To this end, the present application proposes a fork-throwing machine with a high degree of automation, which can improve the stability and reliability of the fork-throwing machine, maintain the operating rhythm of the production line, and ensure production efficiency.

[0007] To achieve the above-mentioned purpose, the present invention provides a fork throwing machine, comprising a frame, a material storage device, a throwing device and a plurality of feeding devices arranged on the frame, wherein the plurality of feeding devices all comprise a centrifugal separation turntable, a detection mechanism, an anti-blocking mechanism, a material transporting mechanism and a fork return mechanism, a material feeding step extending to a material discharge port is formed on the centrifugal separation turntable, the detection mechanism and the anti-blocking mechanism are both arranged above the material feeding step, wherein the detection mechanism is communicatively connected with an external control system and is used to monitor the conveying state of the forks, the anti-blocking mechanism is used to block and disperse the stuck forks; the material transporting mechanism is docked with the material discharge port and is used to transport the forks to the material storage device, and the fork return mechanism is arranged close to the material transporting mechanism and is used to return the forks to the centrifugal separation turntable;

[0008] The material storage device includes a plurality of material storage mechanisms, and the plurality of material storage mechanisms are arranged correspondingly to the plurality of material transport mechanisms. Any of the material storage mechanisms includes a plurality of material storage boxes arranged vertically, the tops and bottoms of the plurality of material storage boxes are open, and the bottoms of the plurality of material storage boxes are provided with opening and closing components; the delivery device is located below the material storage device and is used to receive forks that fall from the plurality of material storage boxes and deliver the forks into the lunch boxes.

[0009] Preferably, the anti-blocking mechanism includes a fork assembly, which includes a first driving member and a rolling member, the rolling member is rotatably installed above the feeding step and is drivingly connected to the power output end of the first driving member, and the rolling member is used to peel off the stuck fork.

[0010] Preferably, the anti-blocking mechanism also includes a second driving member and a push block, the push block is movably installed above the feeding step and is transmission connected to the second driving member, and the push block is used to push the fork clamped on the feeding step into the inner cavity of the centrifugal separation turntable.

[0011] Preferably, the anti-blocking mechanism further comprises a plurality of height-limiting blocks, which are arranged at intervals along the extension direction of the feeding step and are gradually lowered.

[0012] Preferably, the material conveying mechanism includes a conveying component and a material distributing component. One end of the conveying component is butted flush with the discharge port and is used for conveying the table forks to the material distributing component. The material distributing component includes a Y-shaped material distributing pipe and a diversion plate. The diversion plate is rotatably installed in the Y-shaped material distributing pipe. The Y-shaped material distributing pipe is located above the material storage mechanism and is used for distributing the table forks to the material storage mechanism.

[0013] Preferably, the fork returning mechanism includes an adjusting plate, a material returning component and a plurality of air nozzles. The adjusting plate is installed on the conveying component in a limited and movable manner. The plurality of air nozzles are arranged on the adjusting plate at intervals. Among them, at least one air nozzle is located at the discharge port and is used for blowing the table forks into the inner cavity of the centrifugal separation turntable, and at least one air nozzle is arranged opposite to the material returning component and is used for blowing the table forks onto the material returning component. The material returning component is used for conveying the table forks into the centrifugal separation turntable.

[0014] Preferably, the opening and closing component includes a third driving member, a transmission component and two supporting plates. The two supporting plates are respectively rotatably installed on the storage box. The third driving member drives the two supporting plates to approach or separate from each other through the transmission component to close or open the bottom opening of the storage box.

[0015] Preferably, the feeding device includes a mounting frame and a plurality of feeding mechanisms. The plurality of feeding mechanisms are vertically arranged on the mounting frame. The plurality of feeding mechanisms each include a plurality of feeding components and a feeding pipe. The plurality of feeding pipes are respectively arranged in one-to-one correspondence with the plurality of material storage mechanisms. The plurality of feeding components are respectively arranged at both ends of the feeding pipe and are used for opening or closing the pipe orifice of the feeding pipe.

[0016] Preferably, any one of the feeding components includes a base, a fourth driving member, two rotating shafts and a plurality of baffle plates. The base is arranged on the mounting frame. The fourth driving member is detachably installed on the base and is used for driving the two rotating shafts to rotate towards each other. A plurality of the baffle plates are respectively and spacedly arranged on the two rotating shafts.

[0017] Preferably, it further includes a feeding device. The feeding device is arranged on the top of the machine frame. The feeding device includes a feeding component, a material distributing hopper and a plurality of feeding components. The feeding component is used for conveying the table forks to the material distributing hopper. A plurality of material distributing channels are formed in the material distributing hopper. One of the feeding components is arranged at one end of each of the plurality of material distributing channels far away from the feeding component. The feeding component is used for conveying the table forks into the centrifugal separation turntable.

[0018] Beneficial effects:

[0019] 1. In a fork throwing machine of the present invention, the detection mechanism can detect whether the table forks are in abnormal states such as being placed obliquely, damaged, stuck together in multiple pieces, or stacked, etc. When used in cooperation with the anti-blocking mechanism, it can send the table forks in abnormal states on the feeding step back into the inner cavity of the centrifugal separation turntable for secondary feeding, thereby effectively avoiding blockage at the discharge port, ensuring the output efficiency of the feeding device for the table forks, ensuring rapid and efficient throwing operations on the subsequent table forks, and having reliable use.

[0020] 2. In a fork throwing machine of the present invention, the anti-blocking mechanism can not only automatically disperse the stuck table forks, but also effectively avoid blockage at the discharge port caused by multiple table forks being stuck together, etc., greatly improving the smoothness of the table forks passing through the discharge port and ensuring the fork throwing efficiency.

[0021] 3. In a fork throwing machine of the present invention, the fork returning mechanism can send the table forks blocking the discharge port of the centrifugal separation turntable back into the centrifugal separation turntable, thereby quickly dredging the discharge port. This not only reduces the blockage failure rate of the centrifugal separation turntable, but also ensures the discharge efficiency of the feeding device, maintains the production rhythm, and significantly improves the use stability and reliability of the present invention.

[0022] 4. During the use of a fork throwing machine of the present invention, if the material conveying mechanism becomes blocked or when it is not necessary to convey table forks to the storage device, the fork returning mechanism can also send the blocked or excess table forks on the material conveying mechanism back into the centrifugal separation turntable. Thus, not only is the waste of table forks avoided, but also there is no need for manual cleaning or removal of excess table forks, and it can adapt to the use requirements of temporary adjustment or suspension of the production line.

[0023] 5. In a fork throwing machine of the present invention, the storage device can not only temporarily store table forks when the production line needs to be paused or adjusted, ensuring the continuous operation of the equipment and maintaining the overall rhythm of the production line, but also can handle multiple batches or table forks of different specifications simultaneously, improving the use flexibility, effectively reducing the shutdown risk of the overall equipment, and increasing the production efficiency.

[0024] 6. In a fork throwing machine of the present invention, the throwing device can pick up the table forks falling out of several storage boxes and accurately throw the table forks into the corresponding meal boxes, thereby ensuring the throwing effect of the table forks and having reliable use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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 required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic structural diagram of a fork throwing machine according to an embodiment of the present invention;

[0027] Figure 2 It is a partial structural schematic diagram of a fork throwing machine from a first perspective according to an embodiment of the present invention;

[0028] Figure 3 It is a partial structural schematic diagram of a fork throwing machine from a second perspective according to an embodiment of the present invention;

[0029] Figure 4 It is a schematic structural diagram of a feeding device in a fork throwing machine according to an embodiment of the present invention;

[0030] Figure 5 It is a schematic structural diagram of a loading device in a fork throwing machine from a first perspective according to an embodiment of the present invention;

[0031] Figure 6 It is a schematic structural diagram of a loading device in a fork throwing machine from a second perspective according to an embodiment of the present invention;

[0032] Figure 7 It is Figure 6 a partial enlarged view at position A in;

[0033] Figure 8 It is a schematic structural diagram of a storage device in a fork throwing machine according to an embodiment of the present invention;

[0034] Figure 9 It is an installation schematic diagram of a storage box and an opening and closing assembly in a fork throwing machine according to an embodiment of the present invention;

[0035] Figure 10 It is a schematic structural diagram of a throwing device in a fork throwing machine according to an embodiment of the present invention;

[0036] Figure 11 It is Figure 10 a partial enlarged view at position B in.

[0037] In the figure: 1 - frame; 2 - storage device; 3 - throwing device; 4 - loading device; 5 - centrifugal separation turntable; 6 - detection mechanism; 7 - anti-blocking mechanism; 8 - material conveying mechanism; 9 - fork returning mechanism; 10 - feeding step; 11 - storage box; 12 - first driving member; 13 - rolling member; 14 - second driving member; 15 - pushing block; 16 - height limiting block; 17 - conveying assembly; 18 - Y-shaped material distribution pipe; 19 - diversion plate; 20 - adjusting plate; 21 - material returning assembly; 22 - air nozzle; 23 - third driving member; 24 - support plate; 25 - mounting frame; 26 - feeding mechanism; 27 - throwing assembly; 28 - feeding pipe; 29 - base; 30 - fourth driving member; 31 - rotating shaft; 32 - baffle; 33 - feeding device; 34 - feeding assembly; 35 - material distribution hopper; 36 - feeding assembly. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Components of the embodiments of this application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0040] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] In the description of this application, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. This is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of this application. In addition, in the description of this application, if terms such as "first" and "second" are only used for differential description, they cannot be construed as indicating or implying relative importance.

[0042] In addition, in the description of this application, if terms such as "horizontal" and "vertical" are used, it does not mean that the components are required to be absolutely horizontal or hanging vertically, but they can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0043] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0044] Example 1:

[0045] The present invention provides a fork throwing machine.

[0046] In an embodiment of the present invention, a fork throwing machine includes a frame 1, a storage device 2, a throwing device 3, and a plurality of feeding devices 4 arranged on the frame 1. The plurality of feeding devices 4 each include a centrifugal separation turntable 5, a detection mechanism 6, an anti-blocking mechanism 7, a material transporting mechanism 8, and a fork returning mechanism 9. A feeding step 10 extending to the discharge port is formed on the centrifugal separation turntable 5. The detection mechanism 6 and the anti-blocking mechanism 7 are both arranged above the feeding step 10. Among them, the detection mechanism 6 is communicatively connected to an external control system and is used for monitoring the conveying state of the table forks. The anti-blocking mechanism 7 is used for blocking and dispersing the stuck table forks. The material transporting mechanism 8 is docked with the discharge port and is used for transporting the table forks to the storage device 2. The fork returning mechanism 9 is arranged close to the material transporting mechanism 8 and is used for sending the table forks back to the centrifugal separation turntable 5.

[0047] The storage device 2 includes a plurality of storage mechanisms. The plurality of storage mechanisms are arranged corresponding to the plurality of material transporting mechanisms 8. Any one of the storage mechanisms includes a plurality of vertically arranged storage boxes 11. The tops and bottoms of the plurality of storage boxes 11 are both open, and opening and closing components are arranged at the bottoms of the plurality of storage boxes 11. The throwing device 3 is located below the storage device 2 and is used for receiving the table forks falling out of the plurality of storage boxes 11 and throwing the table forks into the lunch box.

[0048] Specifically, as Figures 1 to 5 shown, during the use of a fork throwing machine of the present invention, the staff can directly convey the table forks to the plurality of feeding devices 4 through a conveying device (such as a belt conveyor), and the plurality of feeding devices 4 convey the table forks to the storage device 2 for temporary storage. When it is necessary to throw the table forks into the lunch box, the storage device 2 conveys the table forks inside it to the throwing device 3. At this time, the table forks can be thrown into the lunch box through the throwing device 3, with high automation and reliable use.

[0049] Furthermore, when the forks are transported to the centrifugal separation turntable 5 of the feeding device 4, the centrifugal separation turntable 5 is running and the forks can fall onto the feeding step 10 under the action of centrifugal force and be transported to the discharge port of the centrifugal separation turntable 5 along the feeding step 10. At this time, the feeding step 10 guides the forks, so that the forks can be accurately and smoothly transported to the discharge port, and then transported to the next workstation through the discharge port. The structural design is simple and reasonable. At the same time, in the process of transporting the forks in the centrifugal separation turntable 5 to the discharge port, a detection machine is arranged above the feeding step 10. The detection mechanism 6 and the anti-blocking mechanism 7 can detect whether the forks are in abnormal states such as tilted placement, damage, multiple card connections or stacking through the detection mechanism 6 (such as a camera or a sensor, etc.), and feed back the detection information to the external control system (host computer), and the external control system controls the anti-blocking mechanism 7 to operate and return the forks in abnormal states on the feeding step 10 to the inner cavity of the centrifugal separation turntable 5 for secondary conveying and feeding, thereby effectively avoiding blockage of the discharge port, ensuring the output efficiency of the feeding device 4 for the forks, ensuring the subsequent fast and efficient delivery of the forks, and reliable use. It should be noted that when the forks are conveyed on the feeding step 10, the conveying height of the forks can be limited by the anti-blocking mechanism 7. For example, when multiple forks are in a stuck state stacked up and down, the anti-blocking mechanism 7 can block the forks on the upper side and only allow the forks at the bottom to pass through, while the forks intercepted on the upper side naturally fall back into the inner cavity of the centrifugal separation turntable 5 and are re-conveyed to the feed port via the feeding step 10. This not only can automatically disperse the stuck forks, but also effectively avoid the blockage of the discharge port caused by the stuck connection of multiple forks, which greatly improves the smoothness of the forks passing through the discharge port and ensures the fork throwing efficiency.

[0050] In addition, since a material transport mechanism 8 is installed at the discharge port, the forks output from the discharge port can be transported to the storage device 2 through the material transport mechanism 8, thereby ensuring the smooth transition and transportation of the forks between the loading device 4 and the storage device 2; at the same time, since the return fork mechanism 9 is arranged close to the material transport mechanism 8, when the discharge port is blocked, the detection mechanism 6 will feed back the blockage information to the control system, and the control system will operate the return fork mechanism 9, so that the forks blocked at the discharge port can be returned to the centrifugal separation turntable 5 through the return fork mechanism 9, thereby realizing the rapid dredging of the discharge port, which not only reduces the The blockage failure rate of the centrifugal separation turntable 5 is reduced, and the discharging efficiency of the feeding device 4 is guaranteed, which significantly improves the use stability and reliability of the fork throwing machine of the present invention; moreover, in the process of the forks being transported from the material transport mechanism 8 to the storage device 2, if the material transport mechanism 8 is blocked or there is no need to transport the forks to the storage device 2, the blocked or redundant forks on the material transport mechanism 8 can be returned to the centrifugal separation turntable 5 through the fork return mechanism 9, thereby not only avoiding the waste of forks, but also eliminating the need for manual cleaning of blocked or redundant forks, and being able to adapt to the use needs of temporary adjustment or suspension of the production line.

[0051] It can be understood that after the forks are transported from the material transport mechanism 8 to the storage device 2, since the several storage mechanisms in the storage device 2 are arranged corresponding to the several material transport mechanisms 8, the forks sent by the material transport mechanism 8 can enter the corresponding storage mechanism for temporary storage, so that not only can the forks be temporarily stored when the production line needs to be paused or adjusted, ensuring the continuous operation of the equipment and maintaining the overall rhythm of the production line, but also multiple batches or forks of different specifications can be processed at the same time, thereby improving the flexibility of use (for example, in mixed line production, forks of different specifications can be transported to independent storage mechanisms through the corresponding material transport mechanism 8 to achieve flexible production scheduling.), and through the caching effect of the storage mechanism, even if the downstream delivery device 3 needs to suspend operation, the upstream centrifugal turntable 5 and the material transport mechanism 8 can continue to operate, and the forks are temporarily stored in the storage mechanism, which effectively reduces the risk of shutdown of the entire equipment due to downstream problems and improves the overall production efficiency. Furthermore, since the storage mechanism includes a plurality of storage boxes 11 arranged vertically, when the forks are transported to the storage mechanism by the material transport mechanism 8, the forks can naturally fall into the storage box 11 by gravity for temporary stacking, thereby effectively preventing the forks from piling up and getting stuck between the plurality of storage boxes 11, and the structural design is simple and reasonable; at the same time, when the delivery device 3 needs to take the forks, the control system opens the opening and closing assembly at the bottom of the storage box 11, and the forks fall from the storage box 11 step by step to the delivery device 3, and then the forks can be released step by step, thereby preventing the occurrence of insufficient forks or excessive forks when delivering the forks, and improving the delivery accuracy and stability. In addition, by arranging the delivery device 3 below the storage device 2, the delivery device 3 can receive the forks that fall from the plurality of storage boxes 11 and deliver the forks accurately into the corresponding boxes, thereby ensuring the delivery effect of the forks, and reliable use.

[0052] It is worth noting that, in order to ensure the production and packaging efficiency of instant foods such as barrels, bowls or cups, the lunch boxes can be transported to the bottom of the delivery device 3 in multiple rows to receive the forks by using a conveying device. The conveying device is a mature existing technology, and its working principle and specific structure are not described in detail here. In addition, in order to further improve the accuracy of fork delivery and reduce or eliminate the occurrence of fork leakage, a fork filling mechanism can be set downstream of the delivery device 3 of the present invention, and the fork filling mechanism can be used to re-place the fork in the lunch box. The fork filling mechanism is a mature existing technology and is not described in detail here.

[0053] In one embodiment, the anti-blocking mechanism 7 includes a fork assembly, which includes a first driving member 12 and a rolling member 13. The rolling member 13 is rotatably mounted above the feeding step 10 and is drivingly connected to the power output end of the first driving member 12. The rolling member 13 is used to peel off the stuck fork. Specifically, Figure 2 , Figures 5 to 7As shown, the first driving member 12 can be a motor or a servo driver, etc., and the rolling member 13 can be a roller or a drum, etc. By drivingly connecting the power output end of the first driving member 12 to the rolling member 13, the rolling member 13 can rotate relative to the feeding step 10 under the action of the first driving member 12. When the table fork is conveyed to abut against the rolling member 13 under the action of centrifugal force, at this time the rolling member 13 rotates and can peel off the stacked or clamped table forks and make them fall back into the centrifugal separation turntable 5 and re-enter the normal conveying process. Furthermore, it not only effectively avoids the blockage of the discharge port or the interruption of conveying caused by the stacking or clamping of multiple table forks, but also eliminates the need for manual peeling and dispersion of the clamped table forks, with high automation, and reduces the risk of production interruption caused by the blockage of the discharge port, improving the stability and production efficiency of the present invention.

[0054] In one embodiment, the anti-blocking mechanism 7 further includes a second driving member 14 and a pushing block 15. The pushing block 15 is installed above the feeding step 10 in a limited and movable manner and is drivingly connected to the second driving member 14. The pushing block 15 is used to push the clamped table forks on the feeding step 10 into the inner cavity of the centrifugal separation turntable 5. Specifically, as Figure 2 、 Figures 5 to 7 shown, the second driving member 14 can be a cylinder, a hydraulic cylinder or other linear driving devices, etc., so that the pushing block 15 can reciprocate relative to the feeding step 10 under the action of the second driving member 14, and the structural design is simple and reasonable. Further, when the detection component monitors that the table forks are clamped or stacked on the feeding track, the pushing block 15 moves under the control of the second driving member 14 and applies a thrust to the clamped or stacked table forks, making them fall back into the centrifugal separation turntable 5 for secondary feeding, which not only effectively avoids the blockage of the discharge port, but also improves the conveying stability, use reliability and production efficiency.

[0055] In one embodiment, as Figure 2 and Figure 6 shown, the anti-blocking mechanism 7 further includes a plurality of height-limiting blocks 16. The plurality of height-limiting blocks 16 are arranged at intervals along the extending direction of the feeding step 10 and decrease step by step. It can be understood that when the table forks pass through the plurality of height-limiting blocks 16, the stacked or inclined table forks will be intercepted by the height-limiting blocks 16 and fall back into the centrifugal separation turntable 5, effectively preventing the table forks from stacking and abnormal postures during the conveying process, ensuring that the table forks are always conveyed to the discharge port in a single-layer and flat posture, significantly improving the smoothness of the table forks passing through the discharge port, and being reliable in use.

[0056] In one embodiment, the material conveying mechanism 8 includes a conveying component 17 and a material distributing component. One end of the conveying component 17 is butted flush with the discharge port and is used to convey the table forks to the material distributing component. The material distributing component includes a Y-shaped material distributing pipe 18 and a diversion plate 19. The diversion plate 19 is rotatably installed in the Y-shaped material distributing pipe 18. The Y-shaped material distributing pipe 18 is located above the material storage mechanism and is used to distribute the table forks to the material storage mechanism. Specifically, as Figure 5 shown, the conveying component 17 can be a belt conveyor. By arranging the conveying component 17 to be butted flush with the discharge port, the table forks can be conveyed to the material distributing component smoothly and steadily. The structural design is simple and reasonable. Further, when the table forks enter the Y-shaped material distributing pipe 18 of the material distributing component through the conveying component 17, the control system adjusts the rotation angle of the diversion plate 19 according to the demand, guides the table forks to the corresponding branch pipes, so that the table forks can be conveyed into the designated material storage mechanism, realizing the accurate distribution of the table forks and meeting the production requirements of multiple batches and multiple specifications. At the same time, the rotatable design of the diversion plate 19 makes the material distribution process flexible and controllable, improving the adaptability and production efficiency of a table fork inserting machine of the present invention.

[0057] In one embodiment, the fork returning mechanism 9 includes an adjusting plate 20, a material returning component 21 and a plurality of air nozzles 22. The adjusting plate 20 is installed on the conveying component 17 in a limited movement manner. The plurality of air nozzles 22 are arranged at intervals on the adjusting plate 20. Among them, at least one air nozzle 22 is located at the discharge port and is used to blow the table forks into the inner cavity of the centrifugal separation turntable 5, and at least one air nozzle 22 is arranged opposite to the material returning component 21 and is used to blow the table forks onto the material returning component 21. The material returning component 21 is used to convey the table forks into the centrifugal separation turntable 5.

[0058] Specifically, as Figure 1 、 Figure 2 and Figure 5 shown, when the discharge port is blocked, the detection mechanism 6 feeds back a signal to the control system, and the control system starts the air nozzle 22 to work. At this time, the air nozzle 22 located at the discharge port can blow the blocked table forks back into the inner cavity of the centrifugal separation turntable 5 through the air flow, so that the rapid dredging operation of the discharge port can be realized, not only avoiding the production interruption, but also ensuring the fork inserting efficiency. At the same time, when the table forks on the conveying component 17 are blocked or when it is not necessary to convey the table forks to the storage device 2, the air nozzle 22 located near the material returning component 21 at this time can blow the redundant or stuck table forks onto the material returning component 21, and the material returning component 21 conveys the table forks back into the centrifugal separation turntable 5 through a conveyor belt or other driving mechanisms, thereby reducing the waste of table forks and being able to meet and adapt to the use requirements of temporary adjustment or suspension of the production line.

[0059] In addition, it is worth noting that when the table forks are conveyed on the conveying assembly 17, the adjusting plate 20 can limit and stop the table forks on the conveying assembly 17, thereby effectively preventing the table forks from falling off the conveying assembly 17 and ensuring the conveying stability of the table forks on the conveying assembly 17. At the same time, it can be understood that after the adjusting plate 20 is installed on the conveying assembly 17, it can form a feeding channel for the table forks to pass through with the conveying assembly 17. The adjusting plate 20 can be installed on the conveying assembly 17 in a limited and movable manner by using a linear driving device such as a cylinder or an electric push rod. When the detection mechanism 6 detects that the table forks on the conveying assembly 17 are blocked or jammed, the control system makes the adjusting plate 20 move away from the table forks, thereby increasing the width of the feeding channel. This can further improve the conveying stability and smoothness of the table forks on the conveying assembly 17, and the use is reliable.

[0060] In one embodiment, as Figure 1 、 Figure 8 and Figure 9 shown, the opening and closing assembly includes a third driving member 23, a transmission assembly, and two support plates 24. The two support plates 24 are respectively rotatably installed on the storage box 11. The third driving member 23 drives the two support plates 24 to approach or separate from each other through the transmission assembly to close or open the bottom opening of the storage box 11. Specifically, when it is necessary to temporarily store the table forks, the third driving member 23 drives the two support plates 24 to approach each other through the transmission assembly (the third driving member 23 can be a motor, and the transmission assembly can be a multi-link structure or a gear transmission, etc. The specific structure of the transmission assembly will not be described in detail here), and thereby closes the bottom opening of the storage box 11, so that the table forks can be stably stored in the storage box 11. The structural design is simple and reasonable. When it is necessary to release the table forks, the third driving member 23 acts in the reverse direction and makes the two support plates 24 separate from each other, thereby opening the bottom opening of the storage box 11, and the table forks will automatically fall into the feeding device 3 under the action of gravity, and further can meet the fork supply requirement for the feeding device 3, ensuring that the feeding device 3 can stably feed the table forks into the lunch box, and the use is reliable.

[0061] In one embodiment, the feeding device 3 includes a mounting frame 25 and a plurality of feeding mechanisms 26. The plurality of feeding mechanisms 26 are vertically arranged on the mounting frame 25. Each of the plurality of feeding mechanisms 26 includes a plurality of feeding assemblies 27 and a feeding pipe 28. The plurality of feeding pipes 28 are respectively arranged corresponding to a plurality of storage mechanisms one by one. The plurality of feeding assemblies 27 are respectively arranged at both ends of the feeding pipe 28 and are used to open or close the pipe orifice of the feeding pipe 28. It can be understood that as Figure 1 、 Figure 9 and Figure 10As shown, in the actual installation process of the fork throwing machine of the present invention, the frame 1, the material storage device 2 and the plurality of feeding devices 4 can be arranged at the upper layer, the conveying device for conveying the lunch box can be arranged at the lower layer, and the throwing device 3 can be installed between the material storage device 2 and the conveying device, so that the fork can be stably and smoothly thrown into the lunch box through the throwing device 3 under the action of gravity during the whole fork throwing process, and the structural layout is ingenious and the design is reasonable. In addition, the plurality of feeding mechanisms 26 arranged vertically are compact in structure, which effectively reduces the occupied space of the fork throwing machine of the present invention and improves the space utilization rate.

[0062] Furthermore, when it is necessary to put in the fork, the putting component 27 opens the upper and lower pipe openings of the feeding pipe 28, and the opening and closing component in the storage mechanism simultaneously opens the bottom opening of the storage box 11, so that the fork can fall from the storage mechanism into the feeding pipe 28, and fall into the lunch box under the action of gravity to realize the automatic fork throwing operation of the present invention. It should be noted that by arranging a plurality of feeding pipes 28 in a one-to-one correspondence with a plurality of storage mechanisms, it is possible to ensure that the conveying path of the fork from the storage mechanism to the lunch box is accurate and independent, avoiding the situation of multiple forks or missing forks, and improving the delivery accuracy and efficiency. In addition, the feeding pipe 28 is a transparent pipe, and by arranging a sensor or other detection element on the mounting frame 25, it is possible to detect the conveying state of the fork in the feeding pipe 28, such as whether there are multiple forks or fewer forks, etc., thereby ensuring that the fork throwing machine of the present invention has an accurate and stable fork throwing effect on the lunch box, and is reliable to use.

[0063] In one embodiment, each delivery assembly 27 includes a base 29, a fourth driving member 30, two rotating shafts 31 and a plurality of baffles 32. The base 29 is disposed on the mounting frame 25. The fourth driving member 30 is detachably mounted on the base 29 and is used to drive the two rotating shafts 31 to rotate toward each other. The two rotating shafts 31 are respectively and spaced apart with a plurality of baffles 32. Specifically, Figure 10 and Figure 11 As shown, the fourth drive member 30 and the base 29 can be detachably installed in a threaded manner, thereby facilitating the disassembly, replacement or maintenance of the fourth drive member 30; at the same time, the fourth drive member 30 can be a motor, a cylinder, a hydraulic cylinder, an electric push rod, etc., by connecting the fourth drive member 30 with the two rotating shafts 31 in a transmission manner. If the fourth drive member 30 can be a motor, the two rotating shafts 31 can be driven to rotate toward or away from each other through gear transmission. Since the two rotating shafts 31 are respectively and spaced apart with a plurality of baffles 32, when the two rotating shafts 31 rotate, the two relative baffles 32 can be synchronously driven to move closer to or away from each other, thereby realizing the synchronous delivery operation of the forks in the feeding pipes 28, ensuring the fork delivery efficiency of the fork delivery machine of the present invention, and the structural design is simple and reasonable.

[0064] It should be noted that when the two baffles 32 move away from each other to release the tableware fork, the two baffles 32 of the release assembly 27 at the upper pipe orifice of the material conveying pipe 28 extend into the material conveying pipe 28, and the two baffles 32 of the release assembly 27 at the lower pipe orifice of the material conveying pipe 28 extend into the lunch box, so as to effectively prevent the tableware fork from falling out of the material conveying pipe 28 or outside the lunch box, ensuring the conveying and release effect of the tableware fork and reliable use. In addition, the two baffles 32 are preferably made into quarter circular plates. When the two baffles 32 abut and stop the tableware fork, the tableware fork can always be at the central position between the two baffles 32 and in a flat posture. Furthermore, this can not only prevent the tableware fork from popping out or puncturing the seasoning packet after being released into the lunch box, but also prevent the tableware fork from being placed upright or obliquely after being put into the lunch box, which may affect subsequent operations such as covering the lunch box.

[0065] In one embodiment, it further includes a feeding device 33. The feeding device 33 is arranged on the top of the frame 1. The feeding device 33 includes a feeding assembly 34, a dividing hopper 35 and a plurality of feeding components 36. The feeding assembly 34 is used to convey the tableware fork to the dividing hopper 35. A plurality of dividing channels are formed in the dividing hopper 35. One feeding component 36 is arranged at one end of each of the plurality of dividing channels away from the feeding assembly 34. The feeding component 36 is used to convey the tableware fork into the centrifugal separation turntable 5.

[0066] Specifically, as Figures 1 to 4 shown, arranging the feeding device 33 on the top of the frame 1 can automatically and continuously supply materials to a plurality of centrifugal separation turntables 5, ensuring the fork releasing stability of a fork releasing machine according to the present invention. Further, when the tableware fork is conveyed to the feeding device 33, the feeding assembly 34 (such as a belt conveyor) in the feeding device 33 at this time can convey the tableware fork to the entrance of the dividing hopper 35. Since a plurality of independent dividing channels are formed inside the dividing hopper 35, and one feeding component 36 (which can be a belt conveyor) is connected to one end of each dividing channel away from the feeding assembly 34, and the end of the feeding component 36 extends above the centrifugal separation turntable 5, the tableware fork can be accurately and stably guided into the inner cavity of each centrifugal separation turntable 5, and then continuous and stable feeding operation can be realized for the centrifugal separation turntable 5. The structural design is simple and reasonable; moreover, through the plurality of dividing channels of the dividing hopper 35, automatic diversion of the tableware fork can be realized and the synchronous feeding requirements of a plurality of centrifugal separation turntables 5 can be met, thereby significantly improving the feeding efficiency of the feeding device 33 and meeting the high-speed production requirements of products.

[0067] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A pitchfork machine, characterized in that, The invention comprises a frame (1), a material storage device (2), a feeding device (3) and a plurality of feeding devices (4) arranged on the frame (1), wherein the plurality of feeding devices (4) each comprise a centrifugal separation turntable (5), a detection mechanism (6), an anti-blocking mechanism (7), a material transporting mechanism (8) and a fork return mechanism (9), wherein a material feeding step (10) extending to a material discharge port is formed on the centrifugal separation turntable (5), the detection mechanism (6) and the anti-blocking mechanism (7) are both arranged above the material feeding step (10), wherein the detection mechanism (6) is connected to an external control system for communication and is used to monitor the conveying state of the forks, and the anti-blocking mechanism (7) is used to block and disperse the stuck forks; the material transporting mechanism (8) is connected to the material discharge port and is used to transport the forks to the material storage device (2), and the fork return mechanism (9) is arranged close to the material transporting mechanism (8) and is used to return the forks to the centrifugal separation turntable (5); The material storage device (2) comprises a plurality of material storage mechanisms, and the plurality of material storage mechanisms are arranged correspondingly to the plurality of material transport mechanisms (8). Any of the material storage mechanisms comprises a plurality of material storage boxes (11) arranged vertically, the tops and bottoms of the plurality of material storage boxes (11) are both open, and the bottoms of the plurality of material storage boxes (11) are each provided with an opening and closing assembly; the delivery device (3) is located below the material storage device (2) and is used for receiving forks dropped from the plurality of material storage boxes (11) and delivering the forks into the food boxes.

2. The pitchfork machine according to claim 1, characterized in that, The anti-blocking mechanism (7) comprises a fork assembly, which comprises a first driving member (12) and a rolling member (13). The rolling member (13) is rotatably mounted above the feeding step (10) and is drivingly connected to the power output end of the first driving member (12). The rolling member (13) is used to peel off the clamped fork.

3. The pitchfork machine according to claim 2, characterized in that, The anti-blocking mechanism (7) further comprises a second driving member (14) and a push block (15); the push block (15) is movably mounted above the feeding step (10) and is drivingly connected to the second driving member (14); the push block (15) is used to push the fork engaged on the feeding step (10) into the inner cavity of the centrifugal separation turntable (5).

4. The pitchfork machine according to claim 3, characterized in that, The anti-blocking mechanism (7) further comprises a plurality of height-limiting blocks (16), wherein the plurality of height-limiting blocks (16) are arranged at intervals along the extension direction of the feeding step (10) and are gradually lowered.

5. A pitchfork machine according to claim 1, characterized in that, The material transport mechanism (8) comprises a conveying component (17) and a material distribution component. One end of the conveying component (17) is aligned with the material outlet and is used to transport forks to the material distribution component. The material distribution component comprises a Y-shaped material distribution pipe (18) and a diverter plate (19). The diverter plate (19) is rotatably installed in the Y-shaped material distribution pipe (18). The Y-shaped material distribution pipe (18) is located above the material storage mechanism and is used to distribute forks to the material storage mechanism.

6. The fork-throwing machine according to claim 5, characterized in that, The return fork mechanism (9) includes an adjustment plate (20), a return material assembly (21) and a plurality of air nozzles (22). The adjustment plate (20) is installed on the conveying assembly (17) in a limited and movable manner. A plurality of the air nozzles (22) are arranged at intervals on the adjustment plate (20). Among them, at least one air nozzle (22) is located at the discharge port and is used to blow the dining forks into the inner cavity of the centrifugal separation turntable (5), and at least one of the air nozzles (22) is arranged opposite to the return material assembly (21) and is used to blow the dining forks onto the return material assembly (21). The return material assembly (21) is used to convey the dining forks into the centrifugal separation turntable (5).

7. A pitchfork machine according to claim 1, characterized in that, The opening and closing assembly includes a third driving member (23), a transmission assembly and two support plates (24). The two support plates (24) are respectively rotatably installed on the storage box (11). The third driving member (23) drives the two support plates (24) to approach or separate from each other through the transmission assembly to close or open the bottom opening of the storage box (11).

8. A pitchfork machine according to any one of claims 1-7, characterized in that, The feeding device (3) includes a mounting frame (25) and a plurality of feeding mechanisms (26). The plurality of feeding mechanisms (26) are arranged vertically on the mounting frame (25). The plurality of feeding mechanisms (26) each include a plurality of feeding assemblies (27) and a feeding pipe (28). The plurality of feeding pipes (28) are respectively arranged in one-to-one correspondence with the plurality of storage mechanisms. The plurality of feeding assemblies (27) are respectively arranged at both ends of the feeding pipe (28) and are used to open or close the pipe orifice of the feeding pipe (28).

9. The pitchfork machine according to claim 8, characterized in that, Any one of the feeding assemblies (27) includes a base (29), a fourth driving member (30), two rotating shafts (31) and a plurality of baffle plates (32). The base (29) is arranged on the mounting frame (25). The fourth driving member (30) is detachably installed on the base (29) and is used to drive the two rotating shafts (31) to rotate towards each other. A plurality of the baffle plates (32) are respectively and spacedly arranged on the two rotating shafts (31).

10. A pitchfork machine according to any one of claims 1-7, characterized in that, It further includes a feeding device (33). The feeding device is arranged on the top of the machine frame (1). The feeding device includes a feeding assembly (34), a distributing hopper (35) and a plurality of feeding components (36). The feeding assembly (34) is used to convey the dining forks to the distributing hopper (35). A plurality of distributing channels are formed in the distributing hopper (35). One of the feeding components (36) is arranged at one end of each of the plurality of distributing channels away from the feeding assembly (34). The feeding component (36) is used to convey the dining forks into the centrifugal separation turntable (5).

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