Metering storage tank device of mould pressing firework outer barrel all-in-one machine

Abstract

The utility model discloses a metering storage tank device of a mould pressing firework outer barrel all-in-one machine, the metering storage tank device comprises a tank body and a cover plate which is assembled on the top surface of the tank body in a sealing mode, the tank body is movably supported on a machine frame through a stand column assembly, and the stand column assembly comprises a stand column with the lower end fixed on the machine frame. The bracket can horizontally support the tank body and adjust the height of the tank body, the weighing sensor is fixed between the bracket and the stand column, an elastic discharging frame is arranged between the lower end of the tank body and the rotor metering pump, and the discharging frame can synchronously stretch out and draw back up and down along with lifting of the tank body supported on the weighing sensor. The material storage tank is in a sealed state, so that slurry in the tank body can be prevented from scabbing and blocking, the feeding main pipe is controlled to feed in time and accurately through the rotor metering pump, and the slurry in a reasonable weight range is always stored in the tank body in a mould pressing production process, so that the mould pressing production efficiency and the product quality of a mould pressing outer barrel are improved, and the production cost is reduced. And the labor hour and cost of mould pressing production can be reduced.

Description

Technical Field

[0001] The utility model relates to fireworks manufacturing equipment, in particular to a metering storage tank device used in a molded fireworks outer tube integrated machine which has accurate metering and does not produce scabs. Background Art

[0002] With the development of science and technology, slurry is made of plant fiber, pulp, starch, calcite and other raw materials, and the slurry is used to form a firework outer tube at a high temperature in one go, with multiple pieces of one mold and automatic compression molding. This solves the problems of paper cutting, rolling, gluing, drying, cutting, mud bottoming, drilling, and basin assembly in traditional fireworks production, improves production efficiency, reduces labor intensity, ensures product quality, and reduces the production cost of firework outer tubes. On the compression molding machine, the slurry storage tank is an important component. Its function is to store a fixed amount of slurry and to input the slurry required for a single outer tube into each hopper in the material distribution plate on the integrated machine through the feed pipe at intervals. Since the upper end of the existing slurry storage tank is equipped with a stirring device and a light sensor for metering control, the other parts are open, and the storage tank is still in contact with the air. Therefore, the existing storage tanks may have the following problems during use: first, the slurry on the upper layer of the storage tank body, especially the slurry being stirred, will form scabs when in contact with air, and the scabs will quickly harden into blocks. It often takes several hours to clean (working for 24 hours), which is time-consuming and labor-intensive, and increases production costs. If the scabs are not cleaned in time, the scabs will block the slurry outlet or mix into the slurry, affecting the normal transportation of the slurry and reducing the quality of the outer cylinder product; second, dust-containing water vapor will be generated during the stirring and transportation of the slurry in the tank body, and the dust-containing water vapor will dirty the sensor's optical mirror. The sensor cannot accurately send a control signal, resulting in inaccurate feeding in the tank body (either above or below the material level line), which will affect the normal molding production of the outer cylinder. Utility Model Content

[0003] In view of the problems existing in the storage tank device used in the molded fireworks outer tube production integrated machine in the above-mentioned prior art, the utility model provides a metering storage tank device used in the molded fireworks outer tube integrated machine, which is not only equipped with a mixer and the storage tank is in a sealed state, which can ensure that the slurry in the tank body will not crust over and clump, but also the tank body is filled with materials in a timely and accurate manner, ensuring that the tank body always has slurry within a suitable weight range stored in it when the molding production is normal.

[0004] The technical solution adopted by the utility model for the technical problem to be solved is: a metering storage tank device for a molded fireworks outer tube integrated machine, which is mounted on the molded fireworks outer tube integrated machine, the metering storage tank device includes a tank body, a cover plate sealed and mounted on the top surface of the tank body, a stirring device is arranged in the tank body, the upper end of which is sealed and fixed to the cover plate and the lower end extends into the tank body, the tank body is movably supported on the frame by a column assembly, the column assembly includes a column fixed at the lower end to the frame, a bracket capable of horizontally supporting the tank body and adjusting the height of the tank body, and a weighing sensor fixed between the bracket and the upper end of the column, a discharging frame made of elastic material is arranged between the lower end of the tank body and the rotor metering pump, and the discharging frame can be synchronously extended and retracted up and down as the tank body supported on the weighing sensor is raised and lowered.

[0005] The utility model supports the tank body on the metering storage tank device on a column assembly equipped with a weighing sensor and having an adjustable height. When installing, the tank body is firstly adjusted to be horizontal by adjusting the nut, and then the tank body is fixedly supported on the column assembly by tightening the nut. The height of the slurry entering the tank body is controlled between the high-level material line 24 and the low-level material line 19. When the slurry reaches the high-level line, the total weight A of the tank body (the total weight of the tank body and the slurry when it is at the high-level material line) and the total weight B of the tank body when the slurry is at the low-level material line (when it is at the low-level material line) are used as two external forces (gravity) to compress the weighing sensor. The spring piece in the sensor causes the spring piece to deform, and then the maximum and minimum values ​​of the resistance change generated by the deformation of the resistance strain gauge fixed on the spring piece are used as electrical signals to control whether the feeding main pipe adds material to the tank body. When the slurry reaches the high-level material line (or the total weight of the tank body is A), the maximum value signal of the resistance change generated by the deformation of the resistance strain gauge is input into the controller, and the feeding main pipe 23 stops feeding; similarly, when the slurry is at the low-level material line (or the total weight of the tank body is B), the minimum value signal of the resistance change generated by the deformation of the resistance strain gauge is input into the controller, and the feeding main pipe works to feed the tank body.

[0006] The utility model designs a material storage tank with an open upper end for feeding into a sealed material storage tank, so that the slurry does not contact the air in the tank body, so that the slurry does not form scabs, effectively avoiding the problem of daily cleaning and affecting product quality caused by the easy formation of scabs in the existing slurry in a short time. In addition, the metering and feeding control through the optical sensor is designed to use a weighing sensor to meter and control the feeding, which solves the problem that the existing optical sensor mirror is easily dirty, causing the sensor to fail to send a control signal in time, resulting in inaccurate feeding in the tank body (either above or below the particle level line), thereby affecting the normal production of the outer cylinder.

[0007] The utility model uses a weighing sensor to measure and control the feeding. Between the high-level material line and the low-level material line, the total weight of the tank body (including the slurry) changes from more to less from the beginning of molding, and the tank body supported on the weighing sensor will rise intermittently upward. When the material level reaches the low-pressure material line, the feeding main pipe will automatically add material to the tank body, and the total weight of the tank body will change from less to more. The tank body supported on the weighing sensor will drop downward. Since the tank body will rise and fall between the two material level lines, the sealing between the discharge port at the lower end of the tank body and the rotor metering pump fixed on the frame will fail. There may even be a problem of slurry overflow. In order to solve the problem of failure of the sealing between the discharge port at the lower end of the tank body and the rotor metering pump, a discharge frame which can expand and contract up and down under pressure (the gravity of the total weight of the tank body and the slurry) is provided between the discharge port at the lower end of the tank body and the rotor metering pump. The up and down rising and falling values ​​of the discharge frame are consistent with the up and down rising and falling values ​​of the tank body. That is to say, when the tank body is raised or lowered, the discharge frame will rise and contract synchronously with the raising and lowering of the tank body. In this way, when the tank body is raised or lowered, the discharge port of the tank body can always maintain a sealed connection with the rotor metering pump through the discharge frame during discharging.

[0008] The utility model also uses a rotor metering pump to input the slurry in the storage tank into the feeding pipe at intervals and quantitatively, and then adds the quantitative slurry in the feeding pipe to each material distribution hopper on the material distribution plate that can move horizontally through the feeding pipe that can move longitudinally during the interval. The rotor metering pump measures the weight of the slurry required for an outer cylinder each time. By selecting a rotor metering pump of a corresponding model and adjusting and controlling the rotor rotation speed, the weight of the slurry entering the rotor when a pair of 8-shaped rotors are closed (the two 8-shaped rotors are all horizontal) and fully opened (the two 8-shaped rotors are all vertical) can be the weight of the slurry required for a corresponding model of molded outer cylinder.

[0009] The utility model is not only equipped with a mixer, but also the storage tank is in a sealed state, which can ensure that the slurry in the tank will not crust into lumps. The rotor metering pump is used to control the feeding of the feed main pipe to ensure timely and accurate feeding, ensuring that slurry within a reasonable weight range is always stored in the tank during the molding production process, thereby improving the molding production efficiency and the product quality of the molded outer cylinder, and reducing the molding production time cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the molded fireworks outer tube integrated machine of the utility model.

[0011] Figure 2 yes Figure 1 A-axis (main view of the all-in-one machine) structural diagram,

[0012] Figure 3 yes Figure 2 BB cross-sectional structure diagram,

[0013] Figure 4yes Figure 3 Schematic diagram of the C-direction structure.

[0014] In the figure, 1, molding device 2, finished product mover 3, molded outer cylinder 4, placement plate 5, controller 6, material distribution module 7, feed pipe 8, material distribution plate 9, tank body 10, stacking device 11, limit photoelectric sensor 12, servo motor 13, rotor metering pump 14, finished product output belt 15, lower mold body 16, frame 17, guide rail 18, conveying cylinder 19, low-level material line 20, stirring motor 21, water nozzle 22, material distribution moving motor 23, feed main pipe 24, high-level material line 25, discharge pipe 26, lifting cylinder 27, rotating trolley 28, partition plate 29, column 30, discharge frame 31, adjusting nut 32, support plate 33, fastening nut 34, screw 35, bracket 36, stirring device 37, cover plate 38, weighing sensor. DETAILED DESCRIPTION

[0015] In the figure, the molded fireworks outer tube integrated machine includes a molding device 1, an intermediate auxiliary device and a stacking device 10. The molding device includes a hydraulic system, a touch operation screen (controller 5), an upper mold body, a lower mold body 15 and an ejection mechanism; the stacking device includes a finished product grouping lifting mechanism, a clamping frame and a horizontal and vertical moving mechanism. The finished product grouping lifting mechanism includes a grouping stacking frame. When a set number of molded outer tubes (each group of molded outer tubes has 4, 5 or 6, etc.) enter the grouping stacking frame from the finished product output belt 14 under the action of the conveying cylinder 18 and the guide rail 17, the limit photoelectric sensor 1 1 works, pushes the cylinder back, and the lifting cylinder 26 works to lift the group stacking rack to the set height. The clamping plates on both sides of the clamping rack clamp the group of molded outer cylinders and move along the transverse guide rail under the action of the mobile motor. The clamping rack moves up and down under the drive of the lifting motor to place the molded outer cylinders 3 in stacks on the transfer trolley 27. The intermediate auxiliary device includes a material distribution mechanism and a finished product output mechanism. The material distribution mechanism includes a material distribution module 6 fixed on the frame and a metering storage tank device. The material distribution module includes a feed pipe 7. One end of the feed pipe is connected to the discharge pipe 25 and the water nozzle 21 and can be longitudinally ( Figure 2The other end of the delivery pipe is connected to the rotor metering pump 13, and the rotor metering pump is connected to the servo motor 12. The finished product output mechanism includes a placement tray 4 fixedly arranged on the other end of the support frame, and a partition plate 28 is arranged on the placement tray to divide the placement tray into five rows, and four molded outer cylinders are placed on each row (matching the number of distribution of the distribution hoppers on the distribution tray 8), a finished product mover 2 fixed on the frame, and a finished product output belt 14, and the placement tray can store molded outer cylinders 3 corresponding to the number of the distribution hoppers at intervals. The metering storage tank device includes a tank body 9, a cover plate 37 sealed and mounted on the top surface of the tank body, a stirring device 36 (the upper end of which is connected to the stirring motor 20) is arranged in the tank body, the tank body is evenly and movably supported on the frame 16 by three or four column assemblies, the column assembly includes a column 29 fixed on the frame at the lower end, a bracket 35 capable of horizontally supporting the tank body and adjusting the height of the tank body, and a weighing sensor 38 fixed between the bracket and the upper end of the column, a screw rod 34 is fixed on the upper end of the weighing sensor, the screw rod movably passes through the bracket and is connected to a fastening nut 33, an adjusting nut 31 is arranged at the lower end of the screw, a support plate 32 is arranged between the adjusting nut and the bracket, the lower end of the screw is fixed on the weighing sensor, the weighing sensor is fixed on the column 29, loosen the fastening nuts respectively, twist the first adjusting nut 31 to make the bracket move up and down, so that the tank body can be adjusted to be horizontal, the upper end of the tank body is cylindrical, the lower end It is in the shape of a conical funnel. A discharging frame 30 made of elastic material is fixedly arranged between the lower end of the tank body 9 and the rotor metering pump 13 (the upper end of the discharging frame is fixedly connected to the lower end of the tank body, the lower end of the discharging frame is connected to the upper end of the rotor metering pump, and the lower end of the rotor metering pump is connected to the feeding pipe 7. The discharging frame can be made of elastic materials such as polyurethane, silicone or rubber as a whole. There is a rectangular funnel discharging channel in the middle of the discharging frame that matches the material port at the upper end of the rotor metering pump. The slurry discharge port at the lower end of the rotor metering pump is connected to one end of the feeding pipe 7. The discharging frame can be synchronously extended and retracted up and down with the lifting and lowering of the tank body supported on the weighing sensor (due to the change in the weight of the slurry in the tank body, the tank body supported on the weighing sensor will rise and fall). The up and down lifting and shrinking values ​​of the discharging frame under the total gravity of the tank body are consistent with the up and down lifting values ​​of the tank body between the two material level lines. Except for the metering storage tank device, the other component structures of the integrated machine not described in detail are prior art.

Claims

1. A metering storage tank device for a molded fireworks outer tube integrated machine, which is mounted on a molded fireworks outer tube integrated machine, and is characterized by: The metering storage tank device comprises a tank body (9), a cover plate (37) sealably mounted on the top surface of the tank body, a stirring device (36) is arranged in the tank body, the upper end of which is sealably fixed to the cover plate and the lower end of which extends into the tank body, the tank body is movably supported on the frame by a column assembly, the column assembly comprises a column (29) with a lower end fixed to the frame, a bracket (35) capable of horizontally supporting the tank body and adjusting the height of the tank body, and a weighing sensor (38) fixed between the bracket and the upper end of the column, and a discharging frame (30) made of elastic material is arranged between the lower end of the tank body and the rotor metering pump, the discharging frame being capable of synchronously extending and retracting up and down as the tank body supported on the weighing sensor is raised or lowered.

2. The metering storage tank device for molded fireworks outer tube integrated machine according to claim 1 is characterized in that: The discharge frame (30) is made of polyurethane, silica gel or rubber.

3. The metering storage tank device for the molded fireworks outer tube integrated machine according to claim 1 is characterized by: A screw rod (34) is fixedly provided at the upper end of the weighing sensor (38), the screw rod movably passes through the bracket (35) and is connected to the fastening nut (33), an adjusting nut (31) is provided at the lower end of the screw rod, a support plate (32) is provided between the adjusting nut and the bracket, the lower end of the screw rod is fixed to the weighing sensor, and the weighing sensor is fixed to the column (29).

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