Dry ice briquetting device with automatic weighing control

Abstract

The utility model discloses a dry ice briquetting device with automatic weighing control, including dry ice briquetting host computer, control panel, guide plate, dry ice briquetting host computer left end is equipped with control panel, and dry ice briquetting host computer top is equipped with guide plate. The utility model discloses through being provided with gravity sensor and opening and closing mechanism, through the real -time independent weighing measurement of dry ice particle that four gravity sensors of bottom throw into the inside of four independent recesses of bearing dry ice particle, when gravity sensor obtains the weight of setting, the PLC control of control panel resets the corresponding micro -electromechanical cylinder and closes, will open and close the door reset and close the discharge gate and stop the unloading, ensure that four independent recesses of bearing dry ice particle in the inside of push material board can accurately throw into the same dry ice particle amount, thereby guarantee the quality of every dry ice after briquetting is highly consistent, avoid the weighing after briquetting and find that the quality is unqualified, improve dry ice briquetting's quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dry ice pressing, and in particular to a dry ice pressing device with automatic weighing control. Background Technology

[0002] Dry ice briquetting machines apply high pressure (usually 100-300 MPa) to solid carbon dioxide (dry ice) particles in a mold using a hydraulically or mechanically driven piston. The particles are forced to compress under the enormous pressure, reducing the gaps between them. At the same time, due to the low temperature and high pressure, some particles on the surface sublimate to produce instantaneous gaseous CO2, which then re-sublimates and solidifies, achieving a cold welding bond between the particles to form dry ice blocks.

[0003] Chinese patent document CN216968749U discloses a dry ice briquetting device with automatic weighing control, including a feeding device, a lower hydraulic cylinder, an upper hydraulic cylinder, a belt scale, a first detection device, and a control device. The feeding device is retractably mounted on a feeding platform; the lower hydraulic cylinder is connected to a lower hydraulic cylinder pressing die head to control the movement of the lower hydraulic cylinder pressing die head, which supports the dry ice granules; the upper hydraulic cylinder is connected to an upper hydraulic cylinder pressing die head to control the movement of the upper hydraulic cylinder pressing die head, and the upper hydraulic cylinder... The cylinder compression die head is used to compress granular dry ice into block dry ice, and the upper cylinder is located above the lower cylinder; the belt scale is used to transport the block dry ice, and the belt scale is located on the side of the lower cylinder compression die head; the first detection device is used to detect the weight of the block dry ice, and the first detection device is located on the belt scale; the control device is used to control the operation of the feeding device, the lower cylinder, the upper cylinder, and the belt scale. The feeding device, the lower cylinder, the upper cylinder, the belt scale, and the first detection device are all connected to the control device for signal transmission, which can improve production efficiency.

[0004] The above-disclosed technical solutions also have the following shortcomings: the dry ice after pressing is weighed, but the loose particles cannot be weighed directly before pressing. It is also difficult to accurately control the amount of particles put into each mold cavity, and it is impossible to ensure that the quality of each piece of dry ice after pressing is highly consistent. If the quality is found to be unqualified after pressing, it needs to be discarded or reworked, resulting in dry ice sublimation loss and reducing the quality and efficiency of dry ice pressing. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a dry ice pressing device with automatic weighing control.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a dry ice pressing device with automatic weighing control, comprising a dry ice pressing main unit, a control panel, and a guide plate. The control panel is installed on the left end of the dry ice pressing main unit, and the guide plate is installed on the top of the dry ice pressing main unit.

[0007] It also includes a pressing mechanism, which consists of an upper mold, a first cylinder, a lower mold, an upper top plate, a second cylinder, and a distributor. The upper mold and the lower mold are both installed inside the front end of the ice pressing machine, with the upper mold located directly above the lower mold. The output end of the first cylinder is welded to the middle of the upper end of the upper mold. The upper end of the upper top plate passes through the lower end of the lower mold with a clearance fit. The second cylinder is located at the middle of the bottom of the upper top plate. A distributor is installed at the rear end between the upper mold and the lower mold. The upper end of the distributor is located inside the upper end of the dry ice pressing machine, and the upper end of the distributor is connected to the guide plate.

[0008] As a further embodiment of this utility model, the material distributor consists of a material hopper, a pusher plate, a base plate, and a gravity sensor. The upper end of the material hopper is connected to a guide plate, and the lower end of the material hopper is equipped with a pusher plate located at the rear end between the upper and lower molds. The lower end of the pusher plate is equipped with a base plate, and the upper end of the base plate is equipped with a gravity sensor.

[0009] As a further embodiment of this utility model, a third cylinder is provided at the middle of the rear end of the pusher plate, and four independent grooves for carrying dry ice particles are provided inside the pusher plate.

[0010] As a further embodiment of this utility model, the bottom of the distribution hopper is provided with a lower guide tube that is connected to it, the bottom of the lower guide tube is connected to a discharge port, and an opening and closing door is installed at the bottom of the lower guide tube. The opening and closing door is located at the lower end of the discharge port, and an opening and closing mechanism is provided on the edge of the opening and closing door, and the opening and closing mechanism is installed at the bottom of the distribution hopper.

[0011] As a further embodiment of this utility model, the opening and closing mechanism consists of a miniature electric cylinder, a hinged connecting plate, a connecting rod, and a drive plate. The miniature electric cylinder is fixedly installed at the bottom of the distributing hopper, and the output end of the miniature electric cylinder is connected to one end of the hinged connecting plate. The other end of the hinged connecting plate is connected to the connecting rod, and the other end of the connecting rod is axially connected to one end of the drive plate. The other end of the drive plate is welded to the edge of the opening and closing door.

[0012] As a further embodiment of this utility model, an ion air bar is also provided at the bottom of the distributing hopper, and an air guide pipe is connected to the upper end of the ion air bar. The air guide pipe is installed inside the distributing hopper, and an air outlet is installed on the surface of the air guide pipe and they are interconnected.

[0013] As a further embodiment of this utility model, the lower mold is provided with four dry ice forming cavities, and the bottom of the upper mold is provided with four pressure plates, the four pressure plates at the bottom of the upper mold matching the four dry ice forming cavities inside the lower mold.

[0014] As a further embodiment of this utility model, four lower conduits are provided, and each lower conduit is connected to an opening and closing mechanism at its bottom.

[0015] Compared with the prior art, this utility model provides a dry ice pressing device with automatic weighing control, which has the following advantages:

[0016] 1. This utility model incorporates gravity sensors and an opening / closing mechanism. Four gravity sensors at the bottom independently weigh the dry ice particles placed into four separate grooves that hold the dry ice particles in real time. The four weight signals are sent to the PLC on the control panel for data processing. Once the gravity sensors receive the set weight, the PLC controls the corresponding micro-electric cylinder to reset and close, resetting the opening / closing door and closing the discharge port to stop feeding. This ensures that the four independent grooves inside the pusher plate can accurately hold the same amount of dry ice particles, guaranteeing a high degree of consistency in the quality of each compressed block. This avoids the need for discarding or reworking blocks that are found to be substandard after weighing, thus improving the quality and efficiency of dry ice compression.

[0017] 2. In this utility model, an ion air bar is set up. Compressed air is discharged into the ion air bar by an air compressor. The ion air generated inside the ion air bar is evenly distributed into the five air guide pipes and blown out from the air outlet. This neutralizes the charge of the dry ice particles inside the distribution hopper, preventing the dry ice particles from generating static electricity and clumping together inside the distribution hopper, which would prevent them from discharging smoothly. This improves the smoothness of discharging and ensures accurate feeding. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the pressing mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional disassembled structure of the feeder of this utility model;

[0021] Figure 4 This is a bottom view of the bottom structure of the material distribution hopper of this utility model;

[0022] Figure 5 This is a top view of the internal structure of the material distribution hopper of this utility model.

[0023] Among them: dry ice briquetting main unit-1, control panel-2, guide plate-4;

[0024] Pressing mechanism-3, upper mold-31, first cylinder-32, lower mold-33, upper top plate-34, second cylinder-35, distributor-36, hopper-361, lower guide pipe-3611, discharge port-3612, opening and closing door-3613, opening and closing mechanism-3614, mini electric cylinder-6141, hinged connecting plate-6142, connecting rod-6143, drive plate-6144, push plate-362, third cylinder-3621, base plate-363, gravity sensor-364, ion air bar-3615, air guide pipe-6151, air outlet-6152. Detailed Implementation

[0025] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0026] Please see Figure 1 and 2 In this embodiment of the utility model:

[0027] A dry ice briquetting device with automatic weighing control includes a dry ice briquetting main unit 1, a control panel 2, and a guide plate 4. The control panel 2 is installed on the left end of the dry ice briquetting main unit 1, and the guide plate 4 is installed on the top of the dry ice briquetting main unit 1.

[0028] It also includes a pressing mechanism 3, which consists of an upper mold 31, a first cylinder 32, a lower mold 33, an upper top plate 34, a second cylinder 35, and a distributor 36. The upper mold 31 and the lower mold 33 are both installed inside the front end of the ice pressing machine 1, and the upper mold 31 is located directly above the lower mold 33. The output end of the first cylinder 32 is welded to the middle of the upper end of the upper mold 31. The upper end of the upper top plate 34 is fitted through the lower end of the lower mold 33 with a clearance fit. The second cylinder 35 is set at the middle of the bottom of the upper top plate 34. The distributor 36 is installed at the rear end between the upper mold 31 and the lower mold 33. The upper end of the distributor 36 is located inside the upper end of the dry ice pressing machine 1, and the upper end of the distributor 36 is connected to the guide plate 4.

[0029] The lower mold 33 has four dry ice forming cavities inside, and the upper mold 31 has four pressure plates at the bottom. The four pressure plates at the bottom of the upper mold 31 match the four dry ice forming cavities inside the lower mold 33.

[0030] It should be noted that the upper top plate 34 is provided with four protrusions at the upper end, which match the four dry ice forming cavities inside the lower mold 33. The bottom surface of the four protrusions serves as the bottom support for the four dry ice forming cavities inside the lower mold 33, ensuring that when the upper mold 31 is pressed down, the dry ice particles form dry ice blocks inside the lower mold 33. After forming, the upper top plate 34 is moved upward by the second cylinder 35, and the dry ice blocks are moved out of the lower mold 33.

[0031] Please see 3 and Figure 4In the embodiments of this utility model:

[0032] The feeder 36 consists of a feeder 361, a pusher plate 362, a base plate 363, and a gravity sensor 364. The upper end of the feeder 361 is connected to the guide plate 4. The pusher plate 362 is installed at the lower end of the feeder 361 and is located at the rear end between the upper mold 31 and the lower mold 33. The base plate 363 is installed at the lower end of the pusher plate 362 and the gravity sensor 364 is installed inside the upper end of the base plate 363.

[0033] A third cylinder 3621 is provided at the middle of the rear end of the pusher plate 362, and four independent grooves for carrying dry ice particles are provided inside the pusher plate 362.

[0034] It should be noted that four gravity sensors 364 are provided and distributed inside the upper end of the base plate 363. The four gravity sensors 364 correspond to the four independent grooves inside the pusher plate 362 that carry dry ice particles. When the dry ice particles fall into the four grooves inside the pusher plate 362, the gravity sensors 364 weigh the dry ice particles inside the pusher plate 362. The weighing is performed before pressing, and after weighing, the third cylinder 3621 pushes the pusher plate 362 forward. At this time, the pusher plate 362 moves to the top of the lower mold 33, and the dry ice particles are precisely controlled and put into the four dry ice forming cavities of the lower mold 33.

[0035] The bottom of the distribution hopper 361 is provided with a lower guide tube 3611 that is connected to it. The bottom of the lower guide tube 3611 is connected to a discharge port 3612. An opening and closing door 3613 is installed at the bottom of the lower guide tube 3611. The opening and closing door 3613 is located at the lower end of the discharge port 3612. An opening and closing mechanism 3614 is provided on the edge of the opening and closing door 3613. The opening and closing mechanism 3614 is installed at the bottom of the distribution hopper 361.

[0036] The opening and closing mechanism 3614 consists of a miniature electric cylinder 6141, a hinge plate 6142, a connecting rod 6143, and a drive plate 6144. The miniature electric cylinder 6141 is fixedly installed at the bottom of the hopper 361, and the output end of the miniature electric cylinder 6141 is connected to one end of the hinge plate 6142. The other end of the hinge plate 6142 is connected to the connecting rod 6143. The other end of the connecting rod 6143 is axially connected to one end of the drive plate 6144, and the other end of the drive plate 6144 is welded to the edge of the opening and closing door 3613.

[0037] There are four lower conduits 3611, and each lower conduit 3611 is connected to an opening and closing mechanism 3614 at its bottom;

[0038] It should be noted that the four lower guide tubes 3611 are positioned directly above the four independent grooves inside the pusher plate 362 that carry dry ice particles. After the dry ice particles are put into the pusher plate 362 through the opening and closing door 3613 at the bottom of the lower guide tube 3611, they are weighed independently by the four gravity sensors 364. Once the weight reaches the target, the four micro electric cylinders 6141 drive the four opening and closing doors 3613 to close and stop feeding, ensuring that the same amount of dry ice particles can be accurately put into the four independent grooves inside the pusher plate 362 that carry dry ice particles.

[0039] The pivot shaft at the connection between the linkage 6143 and the drive plate 6144 is fixed at the bottom of the lower guide tube 3611. The pivot shaft has the effect of directional rotation. The drive plate 6144 rotates on a fixed axis through the pivot shaft, which drives the opening and closing door 3613 to rotate around the pivot shaft, thereby realizing the opening and closing of the opening and closing door 3613 to the discharge port 3612.

[0040] Please refer to 5, in the embodiment of this utility model:

[0041] The bottom of the material distribution hopper 361 is also provided with an ion air bar 3615, and the upper end of the ion air bar 3615 is connected to an air guide pipe 6151. The air guide pipe 6151 is installed inside the material distribution hopper 361, and an air outlet 6152 is installed on the surface of the air guide pipe 6151 and they are connected.

[0042] It should be noted that the ion bar 3615 is connected to an air compressor on the outside. The air compressor discharges compressed air into the ion bar 3615, which evenly disperses the ion wind generated inside the ion bar 3615 into the five air guide pipes 6151 and blows it out from the air outlet 6152. This neutralizes the charge of the dry ice particles inside the distribution hopper 361, preventing the dry ice particles from generating static electricity and clumping together inside the distribution hopper 361, which would prevent them from discharging smoothly. This improves the smoothness of the discharging and ensures accurate feeding.

[0043] refer to Figures 1-5In use, dry ice pellets are conveyed to the distribution hopper 361 via an external screw feeder and guide plate 4. The opening and closing doors 3613 at the bottom of the four lower guide tubes 3611 inside the distribution hopper 361 open, opening the discharge port 3612 and distributing the dry ice into the four independent grooves on the pusher plate 362 that hold the dry ice pellets. Because the discharge speeds of the four lower guide tubes 3611 are different, four gravity sensors 364 at the bottom independently weigh the dry ice pellets in the four independent grooves in real time, sending four weight signals to the PLC on the control panel 2 for data processing. When the gravity sensor 364 fails to reach the set weight, the corresponding miniature electric cylinder 6141... The control door 3613 opens to continue feeding. When the gravity sensor 364 receives the set weight, the PLC on the control panel 2 controls the corresponding micro electric cylinder 6141 to reset and close. Under the linkage of the hinge plate 6142, the connecting rod 6143 and the drive plate 6144, the opening and closing door 3613 is reset to close the discharge port 3612 and stop feeding. Independent feeding control ensures that the four independent grooves inside the push plate 362 that carry dry ice particles can accurately feed the same amount of dry ice particles. This ensures that the quality of each dry ice block after pressing is highly consistent, avoiding the need to discard or rework the blocks if they are found to be sublimated after weighing. This improves the quality and efficiency of dry ice blocks.

[0044] After dry ice particles of the same specified weight are placed into the four independent grooves of the pusher plate 362 that hold dry ice particles, the third cylinder 3621 drives the pusher plate 362 forward, pushing the pusher plate 362 directly above the lower mold 33. At this time, the dry ice particles inside the pusher plate 362 fall into the four dry ice forming cavities on the lower mold 33. Then, the first cylinder 32 is activated to drive the upper mold 31 to descend, pressing the dry ice particles inside the lower mold 33 into blocks. After the dry ice blocks are formed, the second cylinder 35 pushes the upper top plate 34 to push the dry ice blocks out from inside the lower mold 33. Then, the pusher plate 362 is used again to feed the dry ice blocks forward and move them out, so that the dry ice blocks can be produced continuously.

[0045] The control method of this utility model 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 utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0046] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dry ice pressing device with automatic weighing control, comprising a dry ice pressing host (1), a control panel (2), and a guide plate (4), wherein the control panel (2) is installed on the left end of the dry ice pressing host (1), and the guide plate (4) is installed on the top of the dry ice pressing host (1); characterized in that It also includes a pressing mechanism (3), which consists of an upper mold (31), a first cylinder (32), a lower mold (33), an upper top plate (34), a second cylinder (35), and a distributor (36). The upper mold (31) and the lower mold (33) are both installed inside the front end of the ice pressing machine (1), and the upper mold (31) is located directly above the lower mold (33). The output end of the first cylinder (32) is welded to the middle of the upper end of the upper mold (31). The upper end of the upper top plate (34) is fitted through the lower end of the lower mold (33) with a clearance fit. The second cylinder (35) is provided at the middle of the bottom of the upper top plate (34). The distributor (36) is installed at the rear end between the upper mold (31) and the lower mold (33). The upper end of the distributor (36) is located inside the upper end of the dry ice pressing machine (1), and the upper end of the distributor (36) is connected to the guide plate (4).

2. The dry ice briquetting apparatus with automatic weighing control according to claim 1, characterized in that: The distributor (36) consists of a distributing hopper (361), a pusher plate (362), a base plate (363), and a gravity sensor (364). The upper end of the distributing hopper (361) is connected to the guide plate (4). The lower end of the distributing hopper (361) is equipped with a pusher plate (362), which is located at the rear end between the upper mold (31) and the lower mold (33). The lower end of the pusher plate (362) is equipped with a base plate (363), and the upper end of the base plate (363) is equipped with a gravity sensor (364).

3. The dry ice briquetting apparatus with automatic weighing control according to claim 2, characterized in that: The pusher plate (362) is provided with a third cylinder (3621) at the middle of its rear end, and the pusher plate (362) is provided with four independent grooves for carrying dry ice particles.

4. The dry ice briquetting apparatus with automatic weighing control according to claim 2, characterized in that: The bottom of the distribution hopper (361) is provided with a lower guide tube (3611) that is connected to it. The bottom of the lower guide tube (3611) is connected to a discharge port (3612). An opening and closing door (3613) is installed at the bottom of the lower guide tube (3611). The opening and closing door (3613) is located at the lower end of the discharge port (3612). An opening and closing mechanism (3614) is provided on the edge of the opening and closing door (3613). The opening and closing mechanism (3614) is installed at the bottom of the distribution hopper (361).

5. The dry ice briquetting apparatus with automatic weighing control according to claim 4, characterized in that: The opening and closing mechanism (3614) consists of a miniature electric cylinder (6141), a hinge plate (6142), a connecting rod (6143), and a drive plate (6144). The miniature electric cylinder (6141) is fixedly installed at the bottom of the hopper (361), and the output end of the miniature electric cylinder (6141) is connected to one end of the hinge plate (6142). The other end of the hinge plate (6142) is connected to the connecting rod (6143), and the other end of the connecting rod (6143) is axially connected to one end of the drive plate (6144). The other end of the drive plate (6144) is welded to the edge of the opening and closing door (3613).

6. The dry ice briquetting apparatus with automatic weighing control according to claim 5, characterized in that: The bottom of the material distribution hopper (361) is also provided with an ion air bar (3615), and the upper end of the ion air bar (3615) is connected to an air guide pipe (6151). The air guide pipe (6151) is installed inside the material distribution hopper (361), and an air outlet (6152) is installed on the surface of the air guide pipe (6151) and they are connected to each other.

7. The dry ice briquetting apparatus with automatic weighing control according to claim 1, characterized in that: The lower mold (33) has four dry ice forming cavities inside, and the upper mold (31) has four pressure plates at the bottom. The four pressure plates at the bottom of the upper mold (31) match the four dry ice forming cavities inside the lower mold (33).

8. The dry ice briquetting apparatus with automatic weighing control according to claim 4, characterized in that: There are four lower conduits (3611), and each lower conduit (3611) is connected to an opening and closing mechanism (3614) at its bottom.

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