Phase change material filling equipment

Abstract

The utility model discloses phase change material filling equipment, relates to the technical field of negative pressure filling equipment, and solves the problem that filling equipment in the prior art cannot meet the filling requirement of phase change materials. The filling machine comprises a machine frame, at least one filling station is arranged on the machine frame, the filling station corresponds to a filling valve assembly arranged on the machine frame, the filling valve assembly is connected with a material bin arranged on the machine frame through a pipeline, a negative pressure device and a positive pressure device are arranged on the machine frame, and the negative pressure device and the positive pressure device are respectively connected with the filling valve assembly and the material bin. The negative pressure device can provide negative pressure, the positive pressure device can control opening and closing of the stock bin and on-off of the filling valve assembly, and heating assemblies are arranged on the filling valve assembly, the pipeline and the stock bin. The equipment is reasonable in structural layout, high in automation degree in the filling process, timely in phase change heating and high in reliability, vacuum filling of the phase change material is achieved, and the filling efficiency and filling quality of the phase change material are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of negative pressure filling equipment, in particular to a phase change material filling equipment. Background Art

[0002] Negative pressure filling machine uses the vacuum system configured in the filling machine to make the packaging container in a certain vacuum degree, so that the liquid material in the liquid storage tank is injected into the packaging container under a certain pressure difference or vacuum state. This filling method is divided into two forms: 1: The packaging container and the liquid storage tank are in the same vacuum degree, and the liquid material is actually filled by gravity flow under vacuum isobaric state. 2: The vacuum degree of the packaging container and the liquid storage tank is different. The former has a larger vacuum degree, and the liquid material is filled under the pressure difference state. The latter can greatly improve the filling efficiency.

[0003] The Chinese invention patent with the publication number CN114162767A discloses a negative pressure filling device and negative pressure filling equipment. The lifting plate of the filling lifting mechanism of the equipment is provided with a plurality of filling heads, and two front and rear bottle blocking assemblies are provided in the middle of the belt conveyor. The baffles of the two bottle blocking assemblies are used to fix a plurality of packaging bottles under the plurality of filling heads. The lifting plate of the lifting plate controls the plurality of filling heads to dock with the bottle mouths of a plurality of packaging bottles downward, and then fills a plurality of packaging bottles, and the filling efficiency is high. After the filling head and the bottle mouth of the packaging bottle are sealed and docked, the lower end of the negative pressure tube inside it extends into the bottleneck. After the filling is completed, the foam accumulated at the bottleneck is drawn out by the negative pressure tube into the negative pressure tank. The liquid in the foam is deposited at the bottom of the negative pressure tank and enters the liquid storage tank through the drain pipe. The foam is filtered out by the filter tube. The invention solves the problem of foam overflowing from the bottle mouth after the filling is completed, improves product quality and avoids material waste.

[0004] However, during the filling process of the phase change material, the material needs to be maintained at a certain temperature so that it can be filled in a liquid state. However, the above conventional prior art does not have heating capabilities and therefore cannot meet the filling requirements of the phase change material. Utility Model Content

[0005] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a phase change material filling device, which solves the problem that the filling device in the prior art cannot meet the requirements of phase change material filling.

[0006] The technical solution of the utility model is implemented as follows: a phase change material filling device, including a frame, the frame is provided with at least one filling station, the filling station corresponds to the filling valve assembly arranged on the frame, the filling valve assembly is connected to the silo arranged on the frame through a pipeline, the frame is provided with a negative pressure device and a positive pressure device respectively connected to the filling valve assembly and the silo, the negative pressure device can provide negative pressure, the positive pressure device can control the opening and closing of the silo and the on and off of the filling valve assembly, and the filling valve assembly, the pipeline and the silo are all provided with a heating assembly.

[0007] Preferably, the filling valve assembly includes a filling valve body corresponding to the filling station one by one and fixed on the frame, the filling valve body is provided with a pneumatic valve connected to the positive pressure device, the pneumatic valve can control the opening and closing of the filling valve body, the filling valve body is provided with a feed interface, the feed connector is connected to the silo through a pipeline, the side wall of the filling valve body is provided with a vacuum interface, the vacuum interface is connected to the negative pressure device, and the lower end of the filling valve body is detachably connected to the quick connector bellows.

[0008] Preferably, the quick connector bellows comprises a stainless steel hose, both ends of which are provided with quick connectors, the upper end of the stainless steel hose is connected to the filling valve body through the quick connector, and the lower end is connected to the buckle port through the quick connector.

[0009] Preferably, the buckle port comprises a connecting flange, and a bayonet for connecting with a quick-connect connector is provided on one side of the connecting flange. Further, a sealing gasket is provided on the connecting flange.

[0010] Preferably, the silo includes a silo body fixed on a frame, and a cover plate assembly is provided at the opening of the silo body.

[0011] Furthermore, the cover plate assembly includes an articulated arm hinged on the bin body in the middle, one end of the articulated arm is hinged to the telescopic end of a flip cylinder fixed on the frame, and the other end of the articulated arm is fixedly connected to the bin cover; a locking cylinder is provided on the frame, and a pressure arm for locking the bin cover is provided on the telescopic end of the locking cylinder; an air nozzle connected to the bin body is provided on the bin cover, and the air nozzle is connected to the negative pressure device.

[0012] Preferably, the negative pressure device includes a vacuum pump, which is connected to the negative pressure tank, which is connected to the air nozzle and the vacuum interface; the positive pressure device includes an air compressor, which is connected to the locking cylinder, the flip cylinder and the pneumatic valve through an air pipe.

[0013] Preferably, the heating assembly comprises an electric heating belt wound around the pipeline, the filling valve assembly and the silo are provided with a silicone heating plate, and the pipeline, the filling valve assembly and the silo are provided with a plurality of temperature sensors.

[0014] Preferably, the frame comprises a profile frame, and a foot cup and universal wheels are provided at the bottom of the profile frame.

[0015] The beneficial effects of the utility model are as follows: by setting up a silo, the phase change material can be stored and supplied to the filling valve assembly through a pipeline; the filling valve assembly can be used to fill the objects to be filled at the filling station respectively; by setting up a negative pressure device, negative pressure can be provided to the filling valve assembly and the silo assembly to maintain the vacuum degree; the positive pressure device can control the opening and closing of the filling valve assembly and the silo, thereby controlling the progress of the filling process; by setting up a heating assembly, the filling valve assembly, pipeline, and silo can be heated to maintain the temperature of the phase change material. The equipment has a reasonable structural layout, a high degree of automation in the filling process, timely phase change heating and strong reliability, realizes the vacuum filling of the phase change material, and improves the filling efficiency and filling quality of the phase change material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the filling valve assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the cover plate assembly of the utility model;

[0020] In the figure: 1: frame, 2: filling valve assembly, 3: silo, 4: negative pressure device, 5: positive pressure device, 6: filling valve body, 7: pneumatic valve, 8: feed interface, 9: vacuum interface, 10: quick connector bellows, 11: stainless steel hose, 12: quick connector, 13: connecting flange, 14: bayonet, 15: sealing gasket, 16: silo body, 17: articulated arm, 18: flip cylinder, 19: silo cover, 20: locking cylinder, 21: profile frame, 22: foot cup, 23: universal wheel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1 As shown, in Example 1, a phase change material filling device includes a frame 1, on which at least one filling station is provided, and the filling station corresponds to the filling valve assembly 2 provided on the frame 1. The filling valve assembly 2 is connected to the silo 3 provided on the frame 1 through a pipeline, and the silo can store phase change materials, and the pipeline can supply materials from the silo to the filling valve assembly. The frame 1 is provided with a negative pressure device 4 and a positive pressure device 5, which are respectively connected to the filling valve assembly 2 and the silo 3. The negative pressure device 4 can provide negative pressure, and the positive pressure device 5 can control the opening and closing of the silo 3 and the opening and closing of the filling valve assembly 2. The negative pressure device can provide negative pressure to the filling valve assembly, the object to be filled and the silo assembly to maintain the vacuum degree, and the positive pressure device can control the opening and closing of the filling valve assembly and the silo, thereby controlling the progress of the filling process. The filling valve assembly 2, the pipeline, and the silo 3 are all provided with a heating assembly.

[0023] In this embodiment, the heating assembly includes an electric belt wound on the pipeline, a silicone heating plate is provided on the filling valve assembly 2 and the silo 3, and a number of temperature sensors are provided on the pipeline, the filling valve assembly 2 and the silo 3, and the electric belt, the silicone heating plate, and the temperature sensor are all connected to the temperature controller, so that the heating temperature is accurately controlled over a wide range through the temperature controller, and the data can be transmitted and presented in real time to the human-machine operation window on the control system for the operator to view. In this embodiment, the preferred temperature sensor is a patch thermocouple. At the same time, the control system in this embodiment is also provided with an emergency stop button for controlling the working process of the heating assembly, the positive pressure device, and the negative pressure device, so as to stop in an emergency when a fault occurs. The control system in this embodiment includes a conventional touch screen, a PLC controller, a low-voltage circuit, various controllers and operation buttons, and the working process of the whole machine is controlled by the control system. The heating assembly can heat the filling valve assembly, the pipeline, and the silo to maintain the temperature of the phase change material, and the temperature sensor can provide temperature feedback to maintain the heating temperature stable.

[0024] In this embodiment, the heating component can continuously heat the silo, pipeline, and filling valve assembly to ensure that the phase change material is always at a high temperature above 90°C, melts quickly, and participates in the filling process in liquid form. In this embodiment, the pipeline is used as a circulation channel for liquid phase change material, and a stainless steel pipeline is used. A total of five filling stations are set, and five groups of filling valve assemblies are correspondingly set. The upper end of the pipeline is connected to the silo, and the lower end is divided into five paths and connected to the five groups of filling valve assemblies respectively. A heating wire is wound around the entire pipeline, and a patch-type thermocouple is set. Finally, an insulation layer is wrapped around the outside to ensure that the liquid phase change material in the pipeline is always at a high temperature and realizes its flow in the pipeline. During filling, the negative pressure device works to provide negative pressure to the filled object, the filling valve assembly and the silo to maintain the vacuum degree. Finally, the filling valve assembly is opened to use the pressure difference generated by the different vacuum degrees to fill the objects to be filled at the filling stations. The equipment has a reasonable structure and layout, a high degree of automation in the filling process, timely and reliable phase change heating, and realizes vacuum filling of phase change materials, thereby improving the filling efficiency and quality of phase change materials.

[0025] Embodiment 2, a phase change material filling device, based on embodiment 1, as Figure 2 As shown, the filling valve assembly 2 includes a filling valve body 6 corresponding to the filling station one by one and fixed on the frame 1. In this embodiment, the filling valve body is fixed to the frame by bolts or clamps. A silicone heating plate and a patch thermocouple are provided on the outside of the filling valve body to achieve heating and temperature control. The filling valve body 6 is provided with a pneumatic valve 7 connected to the positive pressure device 5, and the pneumatic valve 7 can control the opening and closing of the filling valve body 6. The filling valve body 6 is provided with a feed interface 8, and the feed connector is connected to the silo 3 through a pipeline. The side wall of the filling valve body 6 is provided with a vacuum interface 9, and the vacuum interface 9 is connected to the negative pressure device 4. The lower end of the filling valve body 6 is detachably connected to the quick connector bellows 10. In this embodiment, the pneumatic valve 7 includes a piston slidably arranged in the cavity of the filling valve body 6, and the filling valve body is provided with two air nozzles connected to the positive pressure device. By controlling the air intake of the two air nozzles, the piston is driven to slide in different directions along the axial direction, so that the material extrusion port connected to the feed interface 8 is closed or opened by the lower end of the valve core connected to the lower end of the piston, thereby controlling the opening and closing of the feeding process. In this embodiment, the vacuum interface 9 is located on the side wall of the filling valve body below the feed interface 8, and a solenoid valve is provided on the vacuum interface. The connection state of the vacuum interface and the negative pressure device 4 is controlled by the solenoid valve, and whether the vacuuming process is turned on is controlled, so that the space below is vacuumed when the material extrusion port is closed at the lower end of the valve core.

[0026] In this embodiment, the quick connector bellows 10 includes a stainless steel hose 11, and quick connectors 12 are provided at both ends of the stainless steel hose 11. The upper end of the stainless steel hose 11 is connected to the filling valve body 6 through the quick connector 12, and the lower end is connected to the buckle port through the quick connector 12. Among them, the buckle port includes a connecting flange 13, and a bayonet 14 for connecting to the quick connector 12 is provided on one side of the connecting flange 13. A sealing gasket 15 is provided on the connecting flange 13. In this embodiment, a quick connector male head is provided at the lower port of the filling valve body, and the quick connectors at both ends of the stainless steel hose 11 are quick connector female heads, and the buckle 14 is a quick connector male head. Both ends of the stainless steel hose 11 are connected by snapping the quick connector male head and the quick connector female head.

[0027] As a further optional implementation, an electronic flow valve is provided at the lower port of the filling valve body or at the feed interface 8, and the flow parameters can be set according to the volume of the object to be filled to achieve automatic quantitative filling.

[0028] Embodiment 3, a phase change material filling device, based on embodiment 2, as Figure 3 As shown, the silo 3 includes a silo body 16 fixed on the frame 1, and a cover plate assembly is provided at the opening of the silo body 16.

[0029] In this embodiment, the cover assembly includes an articulated arm 17 hinged on the bin body 16 at the middle, one end of the articulated arm 17 is articulated with the telescopic end of the flip cylinder 18 fixed on the frame 1, and the other end of the articulated arm 17 is fixedly connected to the bin cover 19. A locking cylinder 20 is provided on the frame 1, and a pressing arm for locking the bin cover 19 is provided on the telescopic end of the locking cylinder 20. In this embodiment, the bin body and the bin cover are both made of stainless steel, and are used as containers for canned phase change materials. The silicone heating plate in the heating assembly is coated on the outside of the bin body to continuously heat the bin body, and an insulation layer is provided on the outside to achieve heat preservation. At the same time, the temperature sensor in the heating assembly uses a patch thermocouple for temperature collection, so as to monitor the heating situation in real time. In this embodiment, when it is necessary to open the bin cover, the locking cylinder is first controlled to extend and rotate, so that the pressing arm releases the pressure on the bin cover, and then the flip cylinder is controlled to contract, and the bin cover is driven to open through the articulated arm connected by the hinge, and the material feeding and discharging operation is performed. When closing is required, the above steps are reversed, the bin cover is closed on the bin body, and is tightened by the pressing arm of the locking cylinder.

[0030] The bin cover 19 is provided with an air nozzle connected to the bin body 16, and the air nozzle is connected to the negative pressure device 4. When the phase change material is started to be filled, the negative pressure device draws out the gas in the bin body through the air nozzle to maintain a certain vacuum degree.

[0031] In this embodiment, the negative pressure device 4 includes a vacuum pump, which is connected to the negative pressure tank, which is connected to the air nozzle and the vacuum interface 9. In this embodiment, the negative pressure tank is connected to the filling valve assembly and the silo through six pipelines, and solenoid valves are provided on the pipelines of the corresponding connecting parts of the negative pressure tank to control the on-off of the gas circuit. The positive pressure device 5 includes an air compressor, which is connected to the locking cylinder 20, the flip cylinder 18, and the pneumatic valve 7 through the air pipe, and solenoid valves are also provided on the air pipe to control the on-off of the corresponding air pipe.

[0032] Embodiment 4, a phase change material filling equipment, based on embodiment 3, the frame 1 includes a profile frame 21, and the bottom of the profile frame 21 is provided with a foot cup 22 and a universal wheel 23. In this embodiment, the profile frame 21 is made of aluminum alloy profile as a whole, and is assembled and fixed by corner pieces. The aluminum alloy profile has strong plasticity and high assembly precision. The surface of the aluminum alloy profile in this embodiment is anodized, which is corrosion-resistant, wear-resistant, moisture-proof and fire-proof. It can be used in most environments and has a long service life. In addition, the assembly is simple and fast, no welding is required, it is environmentally friendly, time-saving and labor-saving, and the overall cost is controllable. This frame provides a supporting foundation for various parts of the equipment. At the same time, a foot cup and a universal wheel are installed at the bottom to meet the requirements of equipment movement and locking.

[0033] The operation process of this embodiment is as follows:

[0034] 1. Turn on the power and the vacuum pump and air compressor will start automatically.

[0035] 2. Press the operating buttons of the control system in sequence to open the locking cylinder and flip cylinder of the bin cover and open the bin cover.

[0036] 3. Add solid raw materials and close the lid.

[0037] 4. The object to be filled is placed on the filling station and connected to the connecting flange of the corresponding filling valve assembly.

[0038] 5. Set the heating temperature, time, vacuum degree and other parameters of the heating components corresponding to the silo, pipeline and filling valve components on the control system, select the filling valve components No. 1-5 corresponding to the filling stations, and enter the corresponding filling material volume parameters.

[0039] 6. One-touch start of the solenoid valve of the vacuum pump pipeline, heating components on the silo, pipeline, and filling valve assembly are heated. After the set temperature, time, and pipeline vacuum are met, the filling valve assembly automatically opens for filling. After the electronic flow valve detects that the set filling volume is reached, the filling valve assembly automatically closes and the filling is completed. After the filling of each station is completed, the solenoid valve on the vacuum pump pipeline automatically closes after a delay of several seconds.

[0040] 7. After the filled phase change material cools down, it is taken out manually.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A phase change material filling device, comprising a frame (1), characterized in that: The frame (1) is provided with at least one filling station, the filling station corresponding to a filling valve assembly (2) provided on the frame (1), the filling valve assembly (2) being connected to a silo (3) provided on the frame (1) via a pipeline, the frame (1) being provided with a negative pressure device (4) and a positive pressure device (5) respectively connected to the filling valve assembly (2) and the silo (3), the negative pressure device (4) being capable of providing negative pressure, the positive pressure device (5) being capable of controlling the opening and closing of the silo (3) and the on and off of the filling valve assembly (2), and the filling valve assembly (2), the pipeline and the silo (3) being provided with a heating assembly.

2. The phase change material filling device according to claim 1, characterized in that: The filling valve assembly (2) comprises a filling valve body (6) corresponding to each filling station and fixedly mounted on the frame (1); the filling valve body (6) is provided with a pneumatic valve (7) connected to the positive pressure device (5); the pneumatic valve (7) is capable of controlling the opening and closing of the filling valve body (6); the filling valve body (6) is provided with a feed interface (8); the feed interface is connected to the silo (3) through a pipeline; a vacuum interface (9) is provided on the side wall of the filling valve body (6); the vacuum interface (9) is connected to the negative pressure device (4); and the lower end of the filling valve body (6) is detachably connected to a quick connector bellows (10).

3. The phase change material filling device according to claim 2, characterized in that: The quick-connector bellows (10) comprises a stainless steel hose (11), both ends of which are provided with quick-connectors (12), the upper end of the stainless steel hose (11) being connected to the filling valve body (6) via the quick-connector (12), and the lower end of the stainless steel hose (11) being connected to the buckle port via the quick-connector (12).

4. The phase change material filling device according to claim 3, characterized in that: The snap-on port comprises a connecting flange (13), and a snap-on port (14) for connecting to the quick-connect connector (12) is provided on one side of the connecting flange (13).

5. The phase change material filling device according to claim 4, characterized in that: A sealing gasket (15) is provided on the connecting flange (13).

6. The phase change material filling device according to any one of claims 2 to 5, characterized in that: The material bin (3) comprises a bin body (16) fixedly mounted on the frame (1), and a cover plate assembly is provided at the opening of the bin body (16).

7. The phase change material filling device according to claim 6, characterized in that: The cover assembly comprises an articulated arm (17) whose middle portion is hinged to the bin body (16); one end of the articulated arm (17) is articulated to the telescopic end of a tilting cylinder (18) fixedly mounted on the frame (1); the other end of the articulated arm (17) is fixedly connected to the bin cover (19); a locking cylinder (20) is provided on the frame (1); a pressing arm for locking the bin cover (19) is provided on the telescopic end of the locking cylinder (20); and an air nozzle communicating with the inside of the bin body (16) is provided on the bin cover (19); the air nozzle is connected to the negative pressure device (4).

8. The phase change material filling device according to claim 7, characterized in that: The negative pressure device (4) comprises a vacuum pump, which is connected to a negative pressure tank, which is connected to an air nozzle and a vacuum interface (9). The positive pressure device (5) comprises an air compressor, which is connected to a locking cylinder (20), a flip cylinder (18), and a pneumatic valve (7) via an air pipe.

9. The phase change material filling device according to claim 1 or 8, characterized in that: The heating assembly comprises an electric heating belt wound around the pipeline, a silica gel heating plate is provided on the filling valve assembly (2) and the silo (3), and a plurality of temperature sensors are provided on the pipeline, the filling valve assembly (2) and the silo (3).

10. The phase change material filling device according to claim 9, characterized in that: The frame (1) comprises a profile frame (21), and a foot cup (22) and a universal wheel (23) are provided at the bottom of the profile frame (21).

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