A fixed jig automatic reflow device for loading press-type initiating explosive

Abstract

This invention discloses an automatic return device for a fixed fixture used in filling and pressing pyrotechnic products, belonging to the field of pyrotechnic equipment. It features a rotary mechanism on a workbench, driven by a synchronous belt and incorporating limit switches and sensors. Combined with a pressing device mounted at the pressing assembly station, the rotary mechanism automatically transports the pressing mold to the pressing device via a carrier for pressing. A loading and unloading mechanism further facilitates this. The loading mechanism arranges the molds in batches and quantitatively separates them, then automatically clamps them onto the carrier using a clamping device. After placement, a flattening device performs flattening and testing, achieving stable automatic assembly of the molds. The unloading mechanism automatically clamps the molds onto an unloading conveyor belt, which then transports them to the unloading station for unloading. Except for loading and unloading, the entire process is automated, reducing manual labor and labor intensity, avoiding fatigue, errors, and inconsistencies, and better ensuring worker safety.

Description

Technical Field

[0001] This invention belongs to the field of pyrotechnic equipment, and specifically relates to an automatic return device for a fixed fixture used for loading and pressing pyrotechnics. Background Technology

[0002] Currently, the production of pyrotechnic products mostly involves the pressing of explosive charges and tablets. This operation is basically completed manually with a single mold, and the mold is manually transferred. During the operation, mold positioning is difficult, there are many operators, and the degree of automation is extremely low. This process involves the production of pyrotechnic products and has significant safety risks. If a safety accident such as deflagration occurs, it will cause serious injury to the operators.

[0003] In existing technologies, when filling pyrotechnic agents and pressing pyrotechnic products, operators manually position the mold behind a protective plate, and then manually remove the mold after the operation to check the pressing of the product. Although this provides a certain level of safety protection, it is inconvenient to observe and operate behind the protective plate. In addition, if the product requires multiple pressing operations, the number of operators also needs to be greatly increased, resulting in high labor demand and high labor intensity. Furthermore, manual labor is prone to fatigue, errors, and low consistency during frequent fixing of the carrier, leading to low production efficiency and product qualification rate of pyrotechnic products. Operators are in direct close contact with pyrotechnic products, which also poses a high safety risk in case of accidents. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To overcome the shortcomings of existing technologies, an automatic return device for fixing jigs used in filling and pressing pyrotechnic products is proposed. This addresses the problem that in existing technologies, when filling pyrotechnic agents and pressing pyrotechnic products, operators manually position the mold behind a protective plate, and then manually remove the mold after the operation to check the pressing status of the product. Although this provides some safety protection, it is inconvenient to observe and operate behind the protective plate. Furthermore, if the product requires multiple pressing operations, the number of operators needs to be significantly increased, resulting in high labor demand and intensity. Frequent manual fixing of the jig can also lead to fatigue, errors, and low consistency, resulting in low production efficiency and product qualification rate. Operators are in direct close contact with the pyrotechnic products, posing a high safety risk in case of accidents.

[0006] (II) Technical Solution

[0007] This invention is achieved through the following technical solution: This invention proposes an automatic return device for a fixed fixture used for loading and pressing pyrotechnic products. Its structure includes a worktable, a rotary mechanism, a feeding mechanism, and a loading mechanism. The rotary mechanism is mounted on one side of the top of the worktable, and the feeding mechanism and the loading mechanism are mounted on the side of the top of the worktable away from the rotary mechanism.

[0008] The rotary mechanism includes a transfer track, support side plates, guide wheels, a synchronous belt, a detection assembly rod, a first limit switch, a carrier, a pressing mold, a first guide rail, a second guide rail, a third guide rail, a transfer table, a first linear motor, tension wheels, a transfer balance bar, a transfer assembly frame, a first assembly plate, a base plate, and a sensor. Two support side plates are provided, placed parallel and vertically. The bottoms of the two support side plates are fixedly connected by the base plate. The tops of the two support side plates are respectively fixed with the first guide rail and the third guide rail. Tension wheels and two or more guide wheels are installed at the ends of the two support side plates that are furthest from each other. The two or more guide wheels are used to install the synchronous belt, the top of which is installed parallel to the top of the support side plates. The top ends of the two support side plates are fixedly connected by the transfer assembly frame, which is embedded in the two support side plates. The top of the transfer assembly frame is fixed with two first assembly plates at both ends of the two supporting side plates. A transfer track and a transfer balance bar are assembled between the first assembly plates at both ends of the top of the transfer assembly frame. The first linear motor is mounted on the transfer track and the transfer balance bar. A transfer platform is fixed on the top of the first linear motor. A second guide rail is fixed on the top of the transfer platform. The second guide rail can be flush with the first guide rail and the third guide rail. The carrier is mounted on the second guide rail. The carrier is driven by a synchronous belt to move on the first guide rail or the third guide rail. A pressing mold is mounted on the carrier. A first limit switch is mounted on the top of the supporting side plate of the transfer assembly frame away from the third guide rail through a detection assembly rod. The first limit switch is used to detect the position of the carrier when it reaches the transfer platform. A sensor for carrier position detection is also installed on the supporting side plate.

[0009] The feeding mechanism includes a first clamping device, a partition assembly plate, a fourth guide rail, a first pump rod assembly, a first track plate, a flattening detection device, a partition mold, a clamping motor, a baffle, a feeding conveyor belt, and a guide plate. The feeding conveyor belt is mounted on the worktable along the extension direction of one of the supporting side plates. A guide plate is mounted on the top of the feeding conveyor belt for single-row guidance of the pressing molds. A liftable baffle is mounted on the top of the feeding conveyor belt near the supporting side plate. A clamping motor for driving the baffle to rise and fall is installed inside the feeding conveyor belt. The baffle controls the number of pressing molds conveyed from the top of the feeding conveyor belt to the end near the supporting side plate. The partition assembly plate is located on the side of the feeding conveyor belt away from the unloading mechanism. A first pump rod assembly is fixed on the top of the partition assembly plate. A fourth guide rail is fixed to the top of the rod assembly. The first track plate is covered and assembled on the fourth guide rail. The first track plate is connected to the telescopic rod of the first pump rod assembly near the side of the feeding conveyor belt. A dividing mold is fixed to the top of the first track plate. The dividing mold is used to position and separate the arranged and conveyed pressing molds by a certain distance. The first clamping device is assembled above the side of the feeding conveyor belt near the support side plate. The first clamping device is used to clamp the pressing molds separated by the dividing molds onto the carrier. The flattening detection device is assembled on the worktable. The flattening detection device is assembled near the support side plate and the feeding conveyor belt. The flattening detection device is used to flatten and detect the pressing molds placed on the carrier by the first clamping device. A sensor is also assembled on the feeding conveyor belt for detecting the position of the pressing molds.

[0010] The unloading mechanism includes an unloading conveyor belt and a second clamping device. The unloading conveyor belt is mounted on the workbench with an infeeding conveyor belt side. One end of the unloading conveyor belt is mounted parallel to the remaining support side plate. One end of the unloading conveyor belt is located on the side of the support side plate with a synchronous belt. The second clamping device is mounted above the unloading conveyor belt adjacent to the support side plate. The second clamping device has the same structure as the first clamping device. The second clamping device is used to clamp the pressing mold on the carrier onto the unloading conveyor belt.

[0011] Furthermore, the synchronous belts of the two supporting side plates are driven synchronously by the same motor.

[0012] Furthermore, the separating mold adjacent to the pressing mold has a forked structure.

[0013] Furthermore, the workbench is provided with a pressing assembly station, a unloading station, a loading station, and a protective plate. Two supporting side plates are located on one side of the workbench, which is a pressing assembly station. The pressing assembly station is used for assembling the pressing equipment. A protective plate is fixedly installed on the side of the workbench away from the pressing assembly station where the supporting side plates are located. The unloading station is located on the side of the unloading conveyor belt away from the loading conveyor belt, and the loading station is located on the side of the loading conveyor belt away from the unloading conveyor belt.

[0014] Furthermore, the carrier includes a serrated plate, a second track plate, a carrier main board, a fixing pin, and a positioning groove. The second track plate is fixed to the middle of the bottom end of the carrier main board. The carrier main board is assembled to the side of the first guide rail, the second guide rail, or the third guide rail via the second track plate. Serrated plates are fixed to the middle of both sides of the bottom of the carrier main board adjacent to the first and third guide rails. The carrier main board is connected to the timing belt via the serrated plates. The bottom of the serrated plates has a toothed surface structure. The side of the timing belt that is connected to the serrated plates has a toothed surface structure that meshes with the toothed surface of the bottom of the serrated plates. A fixing pin for fixing the pressing mold is assembled on the top of the carrier main board.

[0015] Furthermore, the first clamping device includes a second assembly plate, a traveling assembly plate, a clamping balance bar, a second linear motor, a fifth track, a second pump rod assembly, a third track plate, a second limit switch, an assembly connecting plate, a gripper motor, a gripper assembly rod, a gripper plate, a sixth track, a third limit switch, and a clamping assembly frame. The traveling assembly plate is horizontally mounted above one side of the feeding conveyor belt via the clamping assembly frame. Second assembly plates are fixed to both ends of the traveling assembly plate horizontally adjacent to the feeding conveyor belt. A clamping balance bar is mounted between the second assembly plates at both ends of the traveling assembly plate. A sixth track is also mounted on the side of the traveling assembly plate where the second assembly plates are mounted. The sixth track is located between the second assembly plates at both ends of the traveling assembly plate. The clamping balance bar and the sixth track are parallel to the feeding conveyor belt. The second linear motor is mounted around the clamping balance bar. On the rod and the sixth track, a third limit switch is also mounted on the second assembly plate. The third limit switch is used to limit the walking position of the second linear motor. A second pump rod assembly is vertically fixed on the side of the second linear motor away from the walking assembly plate. A fifth track is vertically mounted on the side of the second pump rod assembly away from the second linear motor. The third track plate is mounted on the fifth track. An assembly connecting plate is also fixed at the bottom of the third track plate. The telescopic rod of the second pump rod assembly is fixedly connected to the assembly connecting plate. A gripper motor is mounted on the assembly connecting plate. Two gripper plates are mounted on the bottom of the gripper motor through two gripper assembly rods. The gripper motor is used to drive the opening and closing of the two gripper plates. The gripper plates are used to clamp the drug pressing mold. A second limit switch is also mounted on the second pump rod assembly to limit the descent position of the third track plate.

[0016] Furthermore, the flattening detection device includes a support plate, a top pressure plate, a fourth track plate, a third pump rod assembly, and a seventh track. The third pump rod assembly is vertically mounted on the worktable via the support plate. The seventh track is vertically mounted on the side of the third pump rod assembly away from the support plate. The fourth track plate is mounted on the seventh track. A top pressure plate is fixed to the bottom of the fourth track plate. The top of the top pressure plate is fixedly connected to the telescopic rod of the third pump rod assembly. The top pressure plate is used for flattening and detecting the drug pressing mold assembled on the carrier.

[0017] Furthermore, the first pump rod assembly, the second pump rod assembly, and the third pump rod assembly are each composed of one or more telescopic pump rods.

[0018] Furthermore, both the first linear motor and the second linear motor are servo motors.

[0019] (III) Beneficial Effects

[0020] One of the above technical solutions has the following advantages or beneficial effects:

[0021] To address the issue of operators manually positioning the mold behind a protective plate during the filling and pressing of pyrotechnic agents in pyrotechnic products, and then manually removing the mold after completion to check the pressing status, while providing some safety, observation and operation behind the protective plate are inconvenient. Furthermore, if the product requires frequent filling and pressing, the number of operators needs to be significantly increased, leading to high labor demands and intensity. The frequent manual fixing of the carrier also increases the risk of fatigue, errors, and inconsistencies, resulting in low production efficiency and product qualification rates. Operators are in direct close contact with the pyrotechnic products, posing a high safety risk in case of accidents. A rotary mechanism is installed on the workbench. This mechanism uses a combination of synchronous belts and tracks to drive the carrier for long-distance back-and-forth transport, ensuring synchronous and stable movement. Simultaneously, a servo motor drives the vertical movement of the transfer table, allowing the carrier to smoothly switch between transport tracks. This is achieved by assembling the pressing agent at the device's pressing station. The assembly of the pyrotechnic pressing equipment, combined with sensors for carrier positioning, enables the rotary mechanism to automatically transport the pressing molds to the pressing equipment for pressing. This is complemented by a loading / unloading mechanism on the same side. The loading mechanism uses a conveyor belt to arrange and transport newly loaded pressing molds, which are then automatically clamped onto the carrier by a clamping device and secured with positioning pins after being divided into batches and quantities. After placement, a flattening device flattens and checks the molds, achieving stable automatic assembly. The unloading mechanism automatically clamps the pressed molds and places them on the unloading conveyor belt, which then transports them to the unloading station for unloading. Workers only need to unload and load the pyrotechnics at the loading / unloading station, significantly reducing manual labor and labor intensity. This eliminates the need for manual positioning and pressing, better avoiding fatigue, errors, and inconsistencies, and improving the production efficiency and pass rate of pyrotechnic products. Simultaneously, the device ensures smooth transport, synchronous carrier rotation without misalignment, and a safe distance between the automatic pressing process and the loading / unloading process, further guaranteeing worker safety. Attached Figure Description

[0022] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a three-dimensional structural schematic diagram of an automatic return device for a fixing jig used for loading and pressing pyrotechnic products according to the present invention.

[0024] Figure 2 For the present invention Figure 1 A magnified structural diagram of A in the middle;

[0025] Figure 3 For the present invention Figure 1 A magnified structural diagram of B in the diagram;

[0026] Figure 4 For the present invention Figure 1 A magnified structural diagram of C;

[0027] Figure 5 This is a side view of an automatic return device for a fixing jig used for loading and pressing pyrotechnic products according to the present invention.

[0028] Figure 6 This is a front view of an automatic return device for a fixing jig used for loading and pressing pyrotechnic products according to the present invention.

[0029] Figure 7 This is a top view of an automatic return device for a fixing jig used for loading and pressing pyrotechnic products according to the present invention.

[0030] Figure 8 This is a three-dimensional structural diagram of the combination of the carrier and the compression mold of the present invention;

[0031] Figure 9 This is a structural schematic diagram of the front view of the assembly of the carrier and the drug-pressing mold of the present invention;

[0032] Figure 10 This is a structural schematic diagram of the rear side view of the assembly of the carrier and the compression mold of the present invention;

[0033] In the diagram: Workbench-1, Rotary Mechanism-2, Unloading Mechanism-3, Loading Mechanism-4, Pressing Assembly Station-1a, Unloading Station-1b, Loading Station-1c, Protective Plate-1d, Transfer Track-2a, Support Side Plate-2b, Guide Roller-2c, Synchronous Belt-2d, Detection Assembly Rod-2e, First Limit Switch-2f, Carrier-2g, Pressing Mold-2h, First Guide Rail-2i, Second Guide Rail-2j, Third Guide Rail-2k, Transfer Table-2l, First Linear Motor-2m, Tensioner Wheel-2n, Transfer Balance Bar-2o, Transfer Assembly Frame-2p, First Assembly Plate-2q, Base Plate-2r, Sensor-2s, Unloading Conveyor Belt-3a, Second Clamping Device-3b, First Clamping Device-4a, Separating Assembly Plate-4b, Fourth Guide Rail-4c, First Pump Rod Assembly-4d, First Track Plate-4e, Flattening Detection Device -4f, Separating Mold -4g, Clamping Motor -4h, Baffle -4i, Feeding Conveyor Belt -4j, Guide Plate -4k, Serrated Plate -2g1, Second Track Plate -2g2, Carrier Main Board -2g3, Fixing Pin -2g4, Positioning Slot -2g5, Second Assembly Plate -4a1, Walking Assembly Plate -4a2, Clamping Balance Bar -4a3, Second Linear Motor -4a4, Fifth Track -4a5, Second Pump Rod Assembly -4a6, Third Track Plate -4a7, Second Limit Switch -4a8, Assembly Connecting Plate -4a9, Gripper Motor -4a10, Gripper Assembly Rod -4a11, Clamping Gripper Plate -4a12, Sixth Track -4a13, Third Limit Switch -4a14, Clamping Assembly Frame -4a15, Support Plate -4f1, Top Pressure Plate -4f2, Fourth Track Plate -4f3, Third Pump Rod Assembly -4f4, Seventh Track -4f5. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to embodiments, but the implementation of the present invention is not limited thereto.

[0035] The present invention provides an automatic return device for a fixed fixture for loading and pressing pyrotechnic products: its structure includes a workbench 1, a rotary mechanism 2, a feeding mechanism 3, and a feeding mechanism 4. The rotary mechanism 2 is mounted on one side of the top of the workbench 1, and the feeding mechanism 3 and the feeding mechanism 4 are mounted on the side of the top of the workbench 1 away from the rotary mechanism 2.

[0036] The rotary mechanism 2 includes a transfer track 2a, a support side plate 2b, a guide wheel 2c, a synchronous belt 2d, a detection assembly rod 2e, a first limit switch 2f, a carrier 2g, a pressing mold 2h, a first guide rail 2i, a second guide rail 2j, a third guide rail 2k, a transfer table 2l, a first linear motor 2m, a tension wheel 2n, a transfer balance bar 2o, a transfer assembly frame 2p, a first assembly plate 2q, a base plate 2r, and a sensor 2s. Two support side plates 2b are provided, and the two support side plates 2b are placed parallel and vertically. The bottom of the two support side plates 2b is fixedly connected by a base plate 2r. A first guide rail 2i and a third guide rail 2k are respectively fixed to the top of the two support side plates 2b. Tensioning wheels 2n and two or more guide wheels 2c are installed at the ends of the two support side plates 2b that are furthest from each other. The two or more guide wheels 2c are used to install a timing belt 2d. The top of the timing belt 2d is installed parallel to the top of the support side plates 2b. Both ends of the top of the two support side plates 2b are fixedly connected by a transfer assembly frame 2p, which is embedded in and mounted on the two support side plates 2b. The top of the transfer assembly frame 2p is fixed with first assembly plates 2q at both ends adjacent to the two supporting side plates 2b. A transfer track 2a and a transfer balance bar 2o are assembled between the first assembly plates 2q at both ends of the top of the transfer assembly frame 2p. The first linear motor 2m is mounted on the transfer track 2a and the transfer balance bar 2o. A transfer platform 2l is fixed to the top of the first linear motor 2m. A second guide rail 2j is fixed to the top of the transfer platform 2l. The second guide rail 2j is flush with and connected to the first guide rail 2i and the third guide rail 2k. The carrier 2g is mounted on the second guide rail 2j. The carrier 2g is driven by the synchronous belt 2d to move on the first guide rail 2i or the third guide rail 2k. The carrier 2g is equipped with a pressing mold 2h. The top of the transfer assembly frame 2p, which is away from the third guide rail 2k, is equipped with a first limit switch 2f via a detection assembly rod 2e. The first limit switch 2f is used to detect the position of the carrier 2g when it arrives at the transfer table 2l. The support side plate 2b is also equipped with a sensor 2s for detecting the position of the carrier 2g.

[0037] The feeding mechanism 4 includes a first clamping device 4a, a partition assembly plate 4b, a fourth guide rail 4c, a first pump rod assembly 4d, a first track plate 4e, a flattening detection device 4f, a partition mold 4g, a clamping motor 4h, a baffle 4i, a feeding conveyor belt 4j, and a guide plate 4k. The feeding conveyor belt 4j is mounted on the workbench 1 along the extension direction of one of the supporting side plates 2b. The top of the feeding conveyor belt 4j is equipped with a guide plate 4k, which is used for single-row guidance of the feeding of the pressing mold 2h. A liftable baffle 4i is mounted on the top of the feeding conveyor belt 4j near the supporting side plate 2b. A clamping motor 4h is installed inside the feeding conveyor belt 4j to drive the baffle 4i to rise and fall. The baffle 4i is used to control the number of pressing molds 2h conveyed from the top of the feeding conveyor belt 4j to the end near the supporting side plate 2b. The partition assembly plate 4b is located on the side of the feeding conveyor belt 4j away from the unloading mechanism 3. b. A first pump rod assembly 4d is fixed at the top. A fourth guide rail 4c is fixed at the top of the first pump rod assembly 4d. A first track plate 4e is mounted on the fourth guide rail 4c. The first track plate 4e is connected to the telescopic rod of the first pump rod assembly 4d on the side adjacent to the feeding conveyor belt 4j. A separating mold 4g is fixed at the top of the first track plate 4e. The separating mold 4g is used to position and separate the arranged and conveyed pressing molds 2h by a certain distance. A first clamping device 4a is mounted on the side of the feeding conveyor belt 4j adjacent to the support side plate 2b. The first clamping device 4a is used to clamp the pressing molds 2h separated by the separating mold 4g onto the carrier 2g. A flattening detection device 4f is mounted on the workbench 1. The flattening detection device 4f is mounted near the support side plate 2b and the feeding conveyor belt 4j. The flattening detection device 4f is used by the first clamping device 4a to flatten and detect the pressing molds 2h placed on the carrier 2g.

[0038] The unloading mechanism 3 includes an unloading conveyor belt 3a and a second clamping device 3b. The unloading conveyor belt 3a is mounted on the workbench 1 on the side where the loading conveyor belt 4j is located. One end of the unloading conveyor belt 3a is mounted parallel to the remaining support side plate 2b. One end of the unloading conveyor belt 3a is located on the side where the support side plate 2b is provided with a synchronous belt 2d. The second clamping device 3b is mounted above the side of the unloading conveyor belt 3a adjacent to the support side plate 2b. The second clamping device 3b has the same structure as the first clamping device 4a. The second clamping device 3b is used to clamp the pressing mold 2h on the carrier 2g onto the unloading conveyor belt 3a.

[0039] The synchronous belts 2d of the two supporting side plates 2b are driven synchronously by the same motor.

[0040] The separating mold 4g is adjacent to the pressing mold 2h, which has a bifurcated structure.

[0041] The workbench 1 is provided with a pressing assembly station 1a, a unloading station 1b, a loading station 1c, and a protective plate 1d. Two supporting side plates 2b are located on one side of the workbench 1, which is the pressing assembly station 1a. The pressing assembly station 1a is used for assembling the pressing equipment. The protective plate 1d is fixedly installed on the side of the workbench 1 away from the pressing assembly station 1a where the supporting side plates 2b are located. The unloading station 1b is located on the side of the unloading conveyor belt 3a away from the loading conveyor belt 4j. The loading station 1c is located on the side of the loading conveyor belt 4j away from the unloading conveyor belt 3a.

[0042] The carrier 2g includes a serrated plate 2g1, a second track plate 2g2, a carrier main plate 2g3, a fixing pin 2g4, and a positioning groove 2g5. The second track plate 2g2 is fixed to the middle of the bottom end of the carrier main plate 2g3. The carrier main plate 2g3 is assembled to the side of the first guide rail 2i, the second guide rail 2j, or the third guide rail 2k through the second track plate 2g2. The serrated plate 2g1 is fixed to the middle of both sides of the bottom of the carrier main plate 2g3 adjacent to the first guide rail 2i and the third guide rail 2k. The carrier main plate 2g3 is connected to the synchronous belt 2d through the serrated plate 2g1. The bottom of the serrated plate 2g1 has a toothed structure. The side of the synchronous belt 2d that is connected to the serrated plate 2g1 has a toothed structure that meshes with the toothed surface of the bottom of the serrated plate 2g1. The top of the carrier main plate 2g3 is equipped with a fixing pin 2g4 for fixing the pressing mold 2h.

[0043] The first clamping device 4a includes a second assembly plate 4a1, a traveling assembly plate 4a2, a clamping balance bar 4a3, a second linear motor 4a4, a fifth track 4a5, a second pump rod assembly 4a6, a third track plate 4a7, a second limit switch 4a8, an assembly connecting plate 4a9, a gripper motor 4a10, a gripper assembly rod 4a11, a gripper plate 4a12, a sixth track 4a13, a third limit switch 4a14, and a clamping assembly frame 4a15. The traveling assembly plate 4a2 is horizontally mounted to one side of the feeding conveyor belt 4j via the clamping assembly frame 4a15. Above, the walking assembly plate 4a2 is horizontally adjacent to both ends of the feeding conveyor belt 4j, and a second assembly plate 4a1 is fixed thereon. A clamping balance bar 4a3 is installed between the second assembly plates 4a1 at both ends of the walking assembly plate 4a2. A sixth track 4a13 is also installed on the side of the walking assembly plate 4a2 where the second assembly plates 4a1 are installed. The sixth track 4a13 is located between the second assembly plates 4a1 at both ends of the walking assembly plate 4a2. The clamping balance bar 4a3 and the sixth track 4a13 are both parallel to the feeding conveyor belt 4j. The second linear motor 4a4 is encased in the assembly. A third limit switch 4a14 is also mounted on the second mounting plate 4a1, on the clamping balance bar 4a3 and the sixth track 4a13. The third limit switch 4a14 is used to limit the walking position of the second linear motor 4a4. A second pump rod assembly 4a6 is vertically fixed to the second linear motor 4a4 on the side away from the walking mounting plate 4a2. A fifth track 4a5 is vertically mounted on the second pump rod assembly 4a6 on the side away from the second linear motor 4a4. A third track plate 4a7 is mounted on the fifth track 4a5, and an assembly connector is fixed to the bottom of the third track plate 4a7. The telescopic rod of the second pump rod assembly 4a6 is fixedly connected to the assembly plate 4a9. The assembly plate 4a9 is equipped with a gripper motor 4a10. The bottom of the gripper motor 4a10 is equipped with two gripper plates 4a12 via two gripper assembly rods 4a11. The gripper motor 4a10 is used to drive the opening and closing of the two gripper plates 4a12. The gripper plates 4a12 are used to clamp the drug pressing mold 2h. The second pump rod assembly 4a6 is also equipped with a second limit switch 4a8 that limits the descent position of the third track plate 4a7.

[0044] The flattening detection device 4f includes a support plate 4f1, a top pressure plate 4f2, a fourth track plate 4f3, a third pump rod assembly 4f4, and a seventh track 4f5. The third pump rod assembly 4f4 is vertically mounted on the workbench 1 via the support plate 4f1. The seventh track 4f5 is vertically mounted on the side of the third pump rod assembly 4f4 away from the support plate 4f1. The fourth track plate 4f3 is mounted on the seventh track 4f5. The top pressure plate 4f2 is fixed to the bottom of the fourth track plate 4f3. The top of the top pressure plate 4f2 is fixedly connected to the telescopic rod of the third pump rod assembly 4f4. The top pressure plate 4f2 is used for flattening and detecting the drug pressing mold 2h assembled on the carrier 2g.

[0045] The first pump rod group 4d, the second pump rod group 4a6, and the third pump rod group 4f4 are each composed of one or more telescopic pump rods.

[0046] Implementation Plan: During equipment use, personnel can load and feed the pressing mold 2h at the feeding station 1c. The pressing mold 2h is then placed on the feeding conveyor belt 4j, which transports it to the adjacent rotary mechanism 2. During this process, the sensor 2s on the feeding conveyor belt 4j counts the number of pressing molds 2h being transported. When a fixed number of pressing molds 2h are transported in a single batch past the baffle 4i, the baffle 4i is lifted by the clamping motor to separate the remaining pressing molds. The medicine mold 2h is then separated by the first pump rod assembly 4d, which, via the first track plate 4e, drives the separating mold 4g to the feeding conveyor belt 4j to grip the medicine mold 2h, ensuring that the medicine mold 2h can be accurately and stably gripped by the first clamping device 4a. Next, the second linear motor 4a4 of the first clamping device 4a travels on the clamping balance bar 4a3 and the sixth track 4a13. When it reaches the walking assembly plate 4a2 near the feeding conveyor belt 4j, it triggers the third limit switch 4a14, causing... The second linear motor 4a4 stops moving, and then the second pump rod assembly 4a6 mounted on the second linear motor 4a4 drives the third track plate 4a7 and the assembly connecting plate 4a9 to slide and descend. The gripper motor 4a10, gripper assembly rod 4a11, and gripping claw plate 4a12 mounted on the assembly connecting plate 4a9 will also descend. After descending a fixed height, the second limit switch 4a8 will trigger to stop the descent. Then, the gripper motor 4a10 drives the gripping claw plate 4a12 to retract and clamp the pressing mold for 2 hours. After clamping, the... The second pump rod assembly 4a6 then drives the clamped pressing mold 2h to rise. Next, the second pump rod assembly 4a6 drives the clamped pressing mold 2h to move to the walking assembly plate 4a2 away from the feeding conveyor belt 4j, and triggers the third limit switch 4a14 at this point to stop the movement. Then, the second pump rod assembly 4a6 drives the clamped pressing mold 2h to fall down and place it on the carrier 2g. At this time, the carrier 2g, which is below the second pump rod assembly 4a6, will perform preliminary assembly and fixation of the pressing mold 2h through the fixed pin 2g4.

[0047] The transfer table 2l on the side of the rotary mechanism 2 adjacent to the feeding mechanism 4 will be ready at the junction of the second guide rail 2j and the first guide rail 2i. After the pressing mold 2h is assembled on the carrier 2g, it will be moved by the synchronous belt 2d via the first guide rail 2i to the second guide rail 2j of the transfer table 2l. At this time, after the first limit switch 2f on the side of the first guide rail 2i adjacent to the feeding conveyor belt 4j detects the carrier 2g, the synchronous belt 2d will stop the entire rotary mechanism 2 from conveying the carrier 2g, and the first linear motor 2m will drive the carrier 2g on the transfer table 2l to the docking position with the third guide rail 2k. At this time, the first limit switch 2f on the side of the third guide rail 2k adjacent to the feeding conveyor belt 4j will detect the carrier 2g. After the carrier 2g arrives, the synchronous belt 2d starts again, moving the carrier 2g a certain distance away from the feeding conveyor belt 4j on the third guide rail 2k. Meanwhile, the transfer table 2l, having lost the carrier 2g, is driven back to its position with the first guide rail 2i by the first linear motor 2m, ready to wait. Simultaneously, the synchronous belt 2d stops again, and the third pump rod group 4f4 of the flattening detection device 4f lowers the top pressure plate 4f2 to flatten and inspect the pressing mold 2h mounted on the carrier 2g, ensuring accurate positioning of the pressing mold 2h during subsequent pressing. Then, the synchronous belt 2d moves the carrier 2g to the end of the third guide rail 2k away from the feeding conveyor belt 4j. At this point, the rotary mechanism 2 is away from the feeding mechanism 4. The transfer table 2l will be ready at the combination of the second guide rail 2j and the third guide rail 2k. When the synchronous belt 2d drives the carrier 2g to move to the second guide rail 2j away from the side of the feeding conveyor belt 4j, the first limit switch 2f on this side will also detect the carrier 2g and stop the synchronous belt 2d. Then the carrier 2g will be transferred by the transfer table 2l away from the feeding conveyor belt 4j to the first guide rail 2i for return conveying. During the return conveying process, the sensor 2s can control the synchronous belt 2d to stop according to whether the pressing equipment is installed at the pressing assembly station 1a, so that the synchronous belt 2d can drive the carrier 2g to automatically return to the pressing equipment for pressing. After pressing is completed, the synchronous belt 2d will automatically stop the carrier 2g. The 2d belt will move the pressing mold 2h, which has completed the pressing process, to the bottom of the second clamping device 3b. After the sensor 2s under the second clamping device 3b detects the pressing mold 2h, the second clamping device 3b, which has the same structure as the first clamping device 4a, will lower the clamping claw plate 4a12 to clamp the pressing mold 2h onto the unloading conveyor belt 3a, so that the unloading conveyor belt 3a will carry the pressing mold 2h to the unloading station 1b. At this time, it is only necessary to manually remove the mold for unloading. The empty mold is then sent back to the nearby loading station 1c for loading medicine, while the empty carrier 2g is automatically assembled again on the first guide rail 2i by the first clamping device 4a.

[0048] During the movement of the carrier 2g on the first guide rail 2i and the third guide rail 2k, the carrier 2g body is stabilized by the first guide rail 2i and the third guide rail 2k. Then, the synchronous belt 2d engages with the sawtooth plate 2g1 of the carrier 2g to ensure stable movement. When the carrier 2g is transferred, the transfer table 2l also travels on the transfer track 2a and the transfer balance bar through the first linear motor 2m to ensure stable transfer. This allows the device to achieve smooth cyclic rotation of the carrier 2g. Since the synchronous belts of the first guide rail 2i and the third guide rail 2k are driven by the same motor, the position of the carrier 2g can be better guaranteed, preventing collisions of the carrier 2g and ensuring the safety of pyrotechnic product transportation.

[0049] When the device needs to be replaced with a different mold, it only requires the fixing pin 2g4 on the carrier 2g, the dividing mold 4g, and the clamping claw plate 4a12, which is convenient and quick.

[0050] The device requires only a few workers at the loading and unloading stations to perform loading and unloading of explosives, eliminating the need for manual positioning and pressing. This significantly reduces the number of workers and their labor intensity, better avoiding human fatigue and errors. It also ensures that the pressing mold is assembled and fixed in place within 2 hours, guaranteeing consistency and improving the production efficiency and pass rate of pyrotechnic products. At the same time, the device provides stable conveying, and the carrier rotates synchronously in 2g without misalignment. The automatic pressing process is also separated from the loading and unloading process by a safe distance, further ensuring the safety of the workers.

[0051] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0052] The control method of this invention is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this invention is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic return device for a fixed fixture for loading and pressing pyrotechnic products, the structure of which includes a workbench (1), a rotary mechanism (2), a feeding mechanism (3), and a feeding mechanism (4), wherein the rotary mechanism (2) is mounted on one side of the top of the workbench (1), and the feeding mechanism (3) and the feeding mechanism (4) are mounted on the side of the top of the workbench (1) away from the rotary mechanism (2). characterized in that The rotary mechanism (2) includes a transfer track (2a), a support side plate (2b), a guide wheel (2c), a synchronous belt (2d), a detection assembly rod (2e), a first limit switch (2f), a carrier (2g), a pressing mold (2h), a first guide rail (2i), a second guide rail (2j), a third guide rail (2k), a transfer table (2l), a first linear motor (2m), a tension wheel (2n), a transfer balance bar (2o), a transfer assembly frame (2p), a first assembly plate (2q), a base plate (2r), and a sensor (2s). Two support side plates (2b) are provided, and the two support side plates (2b) are placed parallel and vertically. The bottom of the two support side plates (2b) is fixedly connected by a base plate (2r). A first guide rail (2i) and a third guide rail (2k) are fixed to the top of each support side plate (2b). Tensioning wheels (2n) and two or more guide wheels (2c) are installed at the ends of the two support side plates (2b) that are furthest from each other. The two or more guide wheels (2c) are used to install a timing belt (2d). The top of the timing belt (2d) is installed parallel to the top of the support side plates (2b). Both ends of the top of the two support side plates (2b) are fixedly connected by a transfer assembly frame (2p). The transfer assembly frame (2p) is embedded in and assembled onto the two support side plates (2b). On the top of the transfer assembly frame (2p), first assembly plates (2q) are fixed at both ends of the two supporting side plates (2b). A transfer track (2a) and a transfer balance bar (2o) are assembled between the first assembly plates (2q) at both ends of the top of the transfer assembly frame (2p). The first linear motor (2m) is mounted on the transfer track (2a) and the transfer balance bar (2o). A transfer platform (2l) is fixed to the top of the first linear motor (2m). A second guide rail (2j) is fixed to the top of the transfer platform (2l). The second guide rail (2j) is flush with and connected to the first guide rail (2i) and the third guide rail (2k). The carrier (2g) is mounted on the second guide rail (2j). The carrier (2g) is driven by the synchronous belt (2d) to move on the first guide rail (2i) or the third guide rail (2k). The carrier (2g) is equipped with a pressing mold (2h). The top of the transfer assembly frame (2p) on the support side plate (2b) away from the third guide rail (2k) is equipped with a first limit switch (2f) through the detection assembly rod (2e). The first limit switch (2f) is used to detect the position of the carrier (2g) when it arrives at the transfer table (2l). The support side plate (2b) is also equipped with a sensor (2s) for detecting the position of the carrier (2g). The feeding mechanism (4) includes a first clamping device (4a), a partition assembly plate (4b), a fourth guide rail (4c), a first pump rod assembly (4d), a first track plate (4e), a flattening detection device (4f), a partition mold (4g), a clamping motor (4h), a baffle (4i), a feeding conveyor belt (4j), and a guide plate (4k). The feeding conveyor belt (4j) is mounted on the workbench (1) along the extension direction of one of the supporting side plates (2b). The top of the feeding conveyor belt (4j) is equipped with a guide plate (4k), which is used for pressing the medicine mold. (2h) A single-row guide for conveying, the top of the feeding conveyor belt (4j) is equipped with a liftable baffle (4i) near the support side plate (2b), the feeding conveyor belt (4j) is equipped with a clamping motor (4h) for driving the baffle (4i) to rise and fall, the baffle (4i) is used to control the number of pressing molds (2h) conveyed from the top of the feeding conveyor belt (4j) to the end near the support side plate (2b), the dividing assembly plate (4b) is located on the side of the feeding conveyor belt (4j) away from the unloading mechanism (3), the top of the dividing assembly plate (4b) is fixed with a first pump rod assembly (4d) The first pump rod assembly (4d) is fixed with a fourth guide rail (4c) at the top. The first track plate (4e) is mounted on the fourth guide rail (4c). The first track plate (4e) is connected to the telescopic rod of the first pump rod assembly (4d) on the side adjacent to the feeding conveyor belt (4j). A separating mold (4g) is fixed with the top of the first track plate (4e). The separating mold (4g) is used to position and separate the arranged and conveyed pressing molds (2h) by a certain distance. The first clamping device (4a) is mounted on the side of the feeding conveyor belt (4j) adjacent to the support side plate (2b). The first clamping device (4a) is used to clamp the divided pressing mold (2h) of the dividing mold (4g) onto the carrier (2g). The flattening detection device (4f) is mounted on the workbench (1). The flattening detection device (4f) is mounted on the support side plate (2b) and the feeding conveyor belt (4j). The flattening detection device (4f) is used to flatten and detect the pressing mold (2h) placed on the carrier (2g) by the first clamping device (4a). The feeding conveyor belt (4j) is also equipped with a sensor (2s) for detecting the position of the pressing mold (2h). The feeding mechanism (3) includes a feeding conveyor belt (3a) and a second clamping device (3b). The feeding conveyor belt (3a) is mounted on the side of the workbench (1) where the feeding conveyor belt (4j) is located. One end of the feeding conveyor belt (3a) is mounted parallel to the remaining support side plate (2b). One end of the feeding conveyor belt (3a) is located on the side of the support side plate (2b) where the synchronous belt (2d) is located. The second clamping device (3b) is mounted above the side of the feeding conveyor belt (3a) adjacent to the support side plate (2b). The second clamping device (3b) has the same structure as the first clamping device (4a). The second clamping device (3b) is used to clamp the pressing mold (2h) on the carrier (2g) onto the feeding conveyor belt (3a).

2. The apparatus according to claim 1, wherein the apparatus is characterized in that: The timing belts (2d) of the two supporting side plates (2b) are synchronously driven by the same motor.

3. The apparatus according to claim 1, wherein the apparatus is characterized in that: The separating mold (4g) adjacent to the pressing mold (2h) has a bifurcated structure.

4. The automatic return device for a fixing fixture used for loading and pressing pyrotechnics according to claim 1, characterized in that: The workbench (1) is provided with a pressing assembly station (1a), a unloading station (1b), a loading station (1c), and a protective plate (1d). Two supporting side plates (2b) are provided on one side of the workbench (1) and the pressing assembly station (1a) is provided. The pressing assembly station (1a) is used for assembling the pressing equipment. The protective plate (1d) is fixedly installed on the side of the workbench (1) away from the pressing assembly station (1a) where the supporting side plate (2b) is located. The unloading station (1b) is located on the side of the unloading conveyor belt (3a) away from the loading conveyor belt (4j). The loading station (1c) is located on the side of the loading conveyor belt (4j) away from the unloading conveyor belt (3a).

5. An automatic return device for a fixing fixture used for loading and pressing pyrotechnics according to claim 1, characterized in that: The carrier (2g) includes a serrated plate (2g1), a second track plate (2g2), a carrier main plate (2g3), a fixing pin (2g4), and a positioning groove (2g5). The second track plate (2g2) is fixed to the middle of the bottom of the carrier main plate (2g3). The carrier main plate (2g3) is assembled to the side of the first guide rail (2i), the second guide rail (2j), or the third guide rail (2k) via the second track plate (2g2). The bottom of the carrier main plate (2g3) is adjacent to the first guide rail (2i). A serrated plate (2g1) is fixed to the middle of both sides of the 2i) and the third guide rail (2k). The main body of the carrier (2g3) is connected to the synchronous belt (2d) through the serrated plate (2g1). The bottom of the serrated plate (2g1) has a toothed surface structure. The side of the synchronous belt (2d) that is connected to the serrated plate (2g1) has a toothed surface structure that meshes with the bottom toothed surface of the serrated plate (2g1). The top of the main body of the carrier (2g3) is equipped with a fixing pin (2g4) for fixing the pressing mold (2h).

6. The automatic return device for a fixing fixture used for loading and pressing pyrotechnics according to claim 1, characterized in that: The first clamping device (4a) includes a second assembly plate (4a1), a traveling assembly plate (4a2), a clamping balance bar (4a3), a second linear motor (4a4), a fifth track (4a5), a second pump rod assembly (4a6), a third track plate (4a7), a second limit switch (4a8), an assembly connecting plate (4a9), a gripper motor (4a10), a gripper assembly rod (4a11), a gripper plate (4a12), a sixth track (4a13), a third limit switch (4a14), and a clamping assembly frame (4a15). The traveling assembly plate (4a2) is horizontally mounted on the feeding conveyor belt (4j) via the clamping assembly frame (4a15). Above one side, the traveling assembly plate (4a2) is horizontally adjacent to the two ends of the feeding conveyor belt (4j) and is fixed with second assembly plates (4a1). A clamping balance bar (4a3) is installed between the second assembly plates (4a1) at both ends of the traveling assembly plate (4a2). A sixth track (4a13) is also installed on the side of the traveling assembly plate (4a2) where the second assembly plates (4a1) are installed. The sixth track (4a13) is located between the second assembly plates (4a1) at both ends of the traveling assembly plate (4a2). The clamping balance bar (4a3) and the sixth track (4a13) are parallel to the feeding conveyor belt (4j). The second linear motor (4a4) is enclosed. The second mounting plate (4a1) is mounted on the clamping balance bar (4a3) and the sixth track (4a13). A third limit switch (4a14) is also mounted on the second mounting plate (4a1), which limits the travel position of the second linear motor (4a4). A second pump rod assembly (4a6) is vertically fixed to the side of the second linear motor (4a4) away from the travel mounting plate (4a2). A fifth track (4a5) is vertically mounted to the side of the second pump rod assembly (4a6) away from the second linear motor (4a4). A third track plate (4a7) is mounted over the fifth track (4a5). A mounting bracket is also fixed to the bottom of the third track plate (4a7). The assembly plate (4a9) is fixedly connected to the telescopic rod of the second pump rod assembly (4a6). The assembly plate (4a9) is equipped with a gripper motor (4a10). The bottom of the gripper motor (4a10) is equipped with two gripping claw plates (4a12) through two gripper assembly rods (4a11). The gripper motor (4a10) is used to drive the opening and closing of the two gripping claw plates (4a12). The gripping claw plates (4a12) are used to clamp the drug pressing mold (2h). The second pump rod assembly (4a6) is also equipped with a second limit switch (4a8) that limits the descent position of the third track plate (4a7).

7. An automatic return device for a fixing fixture used for loading and pressing pyrotechnic items according to claim 1, characterized in that: The flattening detection device (4f) includes a support plate (4f1), a top pressure plate (4f2), a fourth track plate (4f3), a third pump rod assembly (4f4), and a seventh track (4f5). The third pump rod assembly (4f4) is vertically mounted on the workbench (1) via the support plate (4f1). The seventh track (4f5) is vertically mounted on the side of the third pump rod assembly (4f4) away from the support plate (4f1). The fourth track plate (4f3) is mounted on the seventh track (4f5). The top pressure plate (4f2) is fixed at the bottom of the fourth track plate (4f3). The top of the top pressure plate (4f2) is fixedly connected to the telescopic rod of the third pump rod assembly (4f4). The top pressure plate (4f2) is used for flattening and detecting the pressing mold (2h) assembled on the carrier (2g).

8. An automatic return device for a fixing fixture used for loading and pressing pyrotechnics according to claim 1, 6, or 7, characterized in that: The first pump rod assembly (4d), the second pump rod assembly (4a6), and the third pump rod assembly (4f4) are each composed of one or more telescopic pump rods.

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