Moisture-proof conveying device for FDM printing supplies

Abstract

The utility model discloses a moisture-proof conveying device for FDM (fused deposition modeling) printing consumables, which comprises a storage box for storing the consumables, a moisture-proof unit arranged in the storage box, a conveying unit arranged in the storage box and used for conveying and storing the consumables, and a storage wheel for placing the consumables, a supporting assembly for supporting the storage box is arranged at the bottom of the storage box, a gravity sensor is installed at the bottom of the supporting assembly, when the consumables are lower than a threshold value, an alarm is given, and rapid and accurate conveying of the consumables is achieved through the design that a motor drives an occlusion wheel and a conveying pipe is combined. The meshing wheel is meshed with the consumables at the through hole in the conveying pipe, the conveying direction and speed of the consumables can be flexibly controlled through positive and negative rotation of the motor, and the printing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing consumables, in particular to a moisture-proof conveying device for FDM printing consumables. Background Art

[0002] In the field of 3D printing, especially in FDM (fused deposition modeling) printing technology, the transportation and storage of consumables is an important link. However, the traditional transportation and storage methods of FDM printing consumables have significant technical problems in moisture resistance.

[0003] First of all, FDM printing consumables are usually high-molecular thermoplastic materials, which are very easy to absorb moisture during storage and transportation. When the consumables are exposed to a humid environment, moisture will be absorbed into the material, resulting in an increase in the water molecule content. This moisture absorption phenomenon not only affects the storage life of the consumables, but also has a negative impact on the printing process. During the printing process, the consumables are heated to above the melting point to melt. At this time, the water molecules adsorbed inside the consumables will quickly vaporize to form bubbles. These bubbles gather inside the material, which will seriously affect the appearance quality, structural strength and dimensional accuracy of the printed object.

[0004] Secondly, traditional FDM printing consumables conveying devices often lack effective moisture-proof measures. During the consumables conveying process, due to factors such as environmental humidity and temperature changes, the consumables are prone to absorb moisture again, resulting in reduced printing quality. At the same time, the design of the conveying device may also aggravate the moisture absorption problem of the consumables, such as poor sealing and lack of a drying system.

[0005] In addition, for some special materials, such as peek, pps, etc., the cost is high and the temperature requirements are high. During the transportation process, how to maintain the optimal temperature and dryness of these materials to ensure the printing effect is also a problem that needs to be solved. To this end, we propose a moisture-proof conveying device for FDM printing consumables. Utility Model Content

[0006] The utility model aims to provide a moisture-proof conveying device for FDM printing consumables to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a moisture-proof conveying device for FDM printing consumables, comprising a storage box for storing consumables, a moisture-proof unit is arranged inside the storage box, a conveying unit for conveying consumables for storage and retrieval is arranged inside the storage box, and also includes storage wheels for placing consumables, a support assembly for supporting the storage box is arranged at the bottom of the storage box, a gravity sensor is installed at the bottom of the support assembly, and an alarm is triggered when the consumables are lower than a threshold value.

[0008] Furthermore, the conveying unit includes a conveying pipe and a motor for guiding the consumables, the output end of the motor is connected to a meshing wheel, a through hole is provided on the conveying pipe, the meshing part of the meshing wheel meshes with the consumables at the through hole on the conveying pipe, and the consumables are driven to move in the conveying pipe through the forward and reverse rotation of the motor.

[0009] Furthermore, a stopper is provided below the through hole, through which the consumable is engaged with the engaging portion of the engaging wheel. The stopper (including an electromagnet and a push rod) provided below the through hole can be flexibly adjusted as needed to ensure stable engagement between the consumable and the engaging portion of the engaging wheel to prevent falling off or clogging during transportation.

[0010] Furthermore, the terminating member includes an electromagnet and a push rod fixed at the end of the electromagnet, and the end of the push rod is located directly below the through hole.

[0011] Furthermore, the discharge port is in a sealed state when not printing, which further enhances the moisture-proof performance of the device and ensures the long-term storage quality of the consumables.

[0012] Furthermore, the support assembly includes a weighing plate installed inside the storage box, side plates are installed on both sides of the weighing plate, a fixed shaft is installed between the two sets of side plates, the two sets of side plates are fixed to the weighing plate through the fixed shaft, a fixed shaft rotatably connected to the storage wheel is installed between the side plates, the gravity sensor is installed at the bottom of the weighing plate, and the support assembly adopts a structural design of weighing plate, side plate and fixed shaft to provide stable and reliable support for the storage wheel. At the same time, the gravity sensor at the bottom of the weighing plate can accurately measure the weight of the consumables and provide accurate data for the intelligent monitoring and alarm system.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model realizes fast and accurate delivery of consumables by driving the interlocking wheel with a motor and combining the design of the feeding pipe. The interlocking wheel engages with the consumables at the through hole on the feeding pipe, and the conveying direction and speed of the consumables can be flexibly controlled through the forward and reverse rotation of the motor, thereby improving printing efficiency.

[0015] 2. The gravity sensor at the bottom of the support assembly of the utility model can monitor the weight change of the consumables in real time. When the consumables are lower than the set threshold, the system will automatically alarm to remind the user to replenish the consumables in time to ensure the continuity of the printing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional cross-sectional structure of the utility model;

[0017] Figure 2It is a schematic diagram of the local structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the conveying unit of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the support assembly of the utility model;

[0020] Figure 5 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 6 It is a schematic diagram of the moisture-proof unit structure;

[0022] Figure 7 It is a schematic diagram of the cutaway three-dimensional structure of the moisture-proof unit;

[0023] Figure 8 It is a schematic diagram of the structure of the airflow circulation system in the moisture-proof unit;

[0024] Fig. 9 for Figure 8 Schematic diagram of the partially enlarged structure.

[0025] In the figure: 1-storage shell; 2-constant temperature system; 3-air circulation system; 4-temperature detection system; 5-temperature sensor; 6-humidity sensor; 7-control main board; 8-air duct; 9-air outlet pipe; 10-air inlet pipe; 11-opening and closing component; 110-first opening and closing component; 111-second opening and closing component; 112-third opening and closing component; 12-sealing plate; 13-propelling member; 14-electromagnet; 15-fan component; 16-air filter plate; 17-flame retardant heat sink; 18-heater;

[0026] 20-moisture-proof unit; 21-conveying unit; 22-storage wheel; 23-support assembly; 24-gravity sensor; 25-feeding pipe; 26-motor; 27-engaging wheel; 28-through hole; 29-termination piece; 30-electromagnet; 31-thrust rod; 32-weighing plate; 33-side plate; 34-fixed shaft; 35-rotating shaft. DETAILED DESCRIPTION

[0027] 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. Embodiment 1:

[0028] See also Figure 1-4 , the utility model provides a technical solution:

[0029] It includes a storage box 1 for storing consumables, wherein a moisture-proof unit 20 is arranged inside the storage box 1, a conveying unit 21 for conveying consumables for storage and retrieval is arranged inside the storage box, and also includes storage wheels 22 for placing consumables, a supporting component 23 for supporting the storage box is arranged at the bottom, and a gravity sensor 24 is installed at the bottom of the supporting component 23. When the consumables are lower than a threshold value, an alarm is issued.

[0030] The consumables are wound around the storage wheel 22 .

[0031] The conveying unit 21 includes a conveying pipe 25 and a motor 26 for guiding the consumables. The output end of the motor 26 is connected to a meshing wheel 27. A through hole 28 is provided on the conveying pipe 25. The meshing portion of the meshing wheel 27 meshes with the consumables at the through hole 28 on the conveying pipe 25. The consumables are driven to move in the conveying pipe 25 through the forward and reverse rotation of the motor 26.

[0032] When initially placing the material, the material head can be placed on the feed pipe 25. When the material is needed, there is no need to unpack it. Select feed on the control operation platform, the feed electromagnet 30 will be energized to work, press the consumables onto the bite wheel 27, and the motor 26 will start to rotate forward at the same time to transport the material out of the discharge port. When you click stop, the electromagnet 30 will return to its initial position and the motor 26 will stop rotating. At this time, the consumables have no resistance and the bite resistance of the motor 26 will not affect the printer's feeding system; when the material is used up and the consumables need to be recycled, select recycle on the control operation platform, the feed electromagnet 30 will be energized to work, press the consumables onto the bite wheel 27, and the motor 26 will start to reverse at the same time to transport the material back to the discharge port. At this time, the recycle action can be manually stopped to facilitate the next discharge work.

[0033] A stopper 29 is provided below the through hole 28, through which the consumable is engaged with the engaging portion of the engaging wheel 27. The stopper 29 provided below the through hole 28 includes an electromagnet 30 and a push rod 31, which can be flexibly adjusted as needed to ensure that the consumable is stably engaged with the engaging portion of the engaging wheel 27 to prevent falling off or clogging during transportation.

[0034] The meshing wheel 27 can adopt a gear-like structure.

[0035] A weighing plate is installed inside the storage box. The position of the weighing plate is close to the feed inlet. The motor 26 and the end piece 29 are fixedly mounted on the weighing plate.

[0036] The stopper 29 includes an electromagnet 30 and a push rod 31 fixed at the end of the electromagnet 30 , and the end of the push rod 31 is located directly below the through hole 28 .

[0037] The detailed description of the electromagnet 30 driving the ejector rod 31 to move is as follows:

[0038] In the present device, the electromagnet 30 is cleverly designed and mounted on the housing. The housing not only serves to fix the electromagnet 30, but also provides precise guidance for the ejector rod 31. This guiding design ensures the stability and accuracy of the ejector rod 31 during movement.

[0039] The specific structure is that the electromagnet 30 is installed at a specific position of the shell, and a slide groove or guide rail is provided inside the shell to match the push rod 31. The push rod 31 is slidably connected with the shell through these slide grooves or guide rails, so as to realize its linear movement under the action of the electromagnet 30.

[0040] When the electromagnet 30 is energized, a strong magnetic field is generated inside the electromagnet 30. This magnetic field attracts one end of the push rod 31, so that the push rod 31 is attracted toward the electromagnet 30. Due to the guiding effect of the shell, the push rod 31 can move smoothly along the preset track until it contacts the electromagnet 30 or reaches a predetermined position.

[0041] This design makes full use of the magnetism of the electromagnet 30 and the principle of mechanical transmission to achieve rapid and accurate movement of the push rod 31. At the same time, the guiding effect of the shell also ensures the stability and reliability of the push rod 31 during movement, thereby improving the working efficiency and safety of the entire device.

[0042] The through hole 28 is formed in a semi-arc shape.

[0043] The discharge port is in a sealed state when not printing, which further enhances the moisture-proof performance of the device and ensures the long-term storage quality of consumables.

[0044] The support assembly 23 includes a weighing plate 32 installed inside the storage box, side plates 33 are installed on both sides of the weighing plate 32, a fixed shaft 34 is installed between the two sets of side plates 33, the two sets of side plates 33 are fixed on the weighing plate 32 through the fixed shaft 34, a rotating shaft 35 rotatably connected to the storage wheel 22 is installed between the side plates 33, and the gravity sensor 24 is installed at the bottom of the weighing plate 32. The support assembly 23 adopts the structural design of the weighing plate 32, the side plate 33 and the fixed shaft 34, which provides stable and reliable support for the storage wheel 22. At the same time, the gravity sensor 24 at the bottom of the weighing plate 32 can accurately measure the weight of the consumables and provide accurate data for the intelligent monitoring and alarm system. With the material weighing function, it can provide real-time feedback to the control operation platform, and the warning weight can be preset in advance. When the weight of the consumables is lower than the preset value, a prompt sound warning will be issued.

[0045] For further information about the moisture-proof unit, please refer to Example 2. Figure 5-9

[0046] A constant temperature system 2 is arranged inside the storage shell 1, and the constant temperature system 2 includes an airflow circulation system 3 and a temperature detection system 4, wherein the temperature detection system 4 detects the internal temperature of the storage shell 1, and when the temperature is lower than a preset threshold, the airflow circulation system 3 regulates the internal temperature of the storage shell 1.

[0047] The temperature detection system 4 includes a temperature sensor 5 and a humidity sensor 6, both of which are respectively arranged inside the storage shell 1 and detect the temperature and humidity of the storage area for placing consumables.

[0048] This solution includes a control main board 7, which is installed inside the storage shell 1. The control board is used to receive data from the temperature and humidity sensor 6, and judge the temperature and humidity inside the storage shell 1 by analyzing the data. When the temperature and humidity change, the airflow circulation system 3 is controlled to start working.

[0049] The temperature detection system 4 monitors the temperature and humidity inside the storage shell 1 in real time through the temperature sensor 5 and the humidity sensor 6. When the temperature is lower than the preset threshold, the air circulation system 3 starts to work to regulate the internal temperature.

[0050] The air flow circulation system 3 includes an air duct 8 installed in the storage shell 1, on which an air outlet pipe 9 and an air inlet pipe 10 are respectively arranged, and the ends of the three are interconnected. One end of the air outlet pipe 9 and the air inlet pipe 10 are connected to the outside of the storage shell 1, and the other end is connected to the inside of the storage shell 1. Opening and closing components 11 are respectively installed at the ports of the air inlet pipe 10 and the air outlet pipe 9 close to the outside of the storage shell 1, and an opening and closing component 11 is also arranged on the air duct 8 between the air outlet pipe 9 and the air inlet pipe 10. The opening and closing component 11 is used to block the air flow between the air ducts 8.

[0051] The air circulation system 3 is composed of an air duct 8, an air outlet pipe 9, an air inlet pipe 10 and a fan assembly 15. The fan assembly 15 drives the air to circulate between the inside and outside of the storage shell 1;

[0052] In order to more conveniently explain the constant temperature principle, the opening and closing components 11 are now divided into the opening and closing components 11 located at the end of the air inlet pipe 10, between the air outlet pipe 9 and the air inlet pipe 10, and at the end of the air outlet pipe 9, respectively named as the first opening and closing component 110, the second opening and closing component 111, and the third opening and closing component 112;

[0053] External circulation mode: The first and third opening and closing components 112 are opened, and the second opening and closing component 111 is closed, forming an external circulation. At this time, the external air enters the device through the air inlet pipe, and most of the water vapor is filtered out by the air filter plate 16. At the same time, the PTC heater heats and dries the incoming air to ensure that the air entering the device is dry. Subsequently, the dry air is blown into the storage shell 1 through the fan component 15, and the internal water vapor is taken out from the air outlet pipe 9 to achieve the drying of the internal environment.

[0054] The opening and closing assembly 11 includes a sealing plate 12 , one end of which is connected to a propulsion member 13 for controlling the movement of the sealing plate 12 , and the propulsion member 13 is an electromagnet 14 .

[0055] The electromagnet 14 is electrically connected to the control main board 7 and is controlled by the control main board 7. In addition, the electromagnet 14 is installed on the lane. The electromagnet 14 receives a command from the control main board 7 to drive the sealing plate 12 to move.

[0056] The ends of the air inlet pipe 10 and the air outlet pipe 9 close to the inside of the storage shell 1 are both provided with a fan assembly 15. The fan assembly 15 adopts an existing structure, which will not be described in detail here.

[0057] A heater for heating the air is installed at the port of the air inlet pipe 10 close to the inside of the storage shell 1. The heater is a PCT heater, which can heat the air.

[0058] An air filter plate 16 is installed at the port of the air inlet duct close to the outside of the storage shell 1. The air filter plate 16 can filter the outside air to a certain extent to prevent the outside dust from entering the interior of the storage shell.

[0059] The storage shell 1 is made of glass fiber reinforced polyphenylene sulfide, which to a certain extent avoids heat exchange between the air inside the storage shell 1 and the outside, thereby preventing energy loss.

[0060] A flame retardant heat sink 17 is installed inside the storage shell 1, and the air discharged through the air inlet pipe 10 enters the area where the consumables are stored through the flame retardant heat sink 17. By providing the flame retardant heat sink, it is possible to prevent the heated air from being too hot, which may damage the consumables.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A moisture-proof conveying device for FDM printing consumables, comprising a storage box for storing consumables, wherein a moisture-proof unit (20) is arranged inside the storage box, characterized in that: The storage box is provided with a conveying unit (21) for conveying consumables for storage and retrieval, and also includes a storage wheel (22) for placing the consumables; A support assembly (23) is provided at the bottom of the storage box to support it, and a gravity sensor (24) is installed at the bottom of the support assembly (23) to generate an alarm when the consumables are below a threshold.

2. The moisture-proof conveying device for FDM printing consumables according to claim 1, characterized in that: The conveying unit (21) comprises a conveying pipe (25) for guiding the consumable material and a motor (26), wherein the output end of the motor (26) is connected to a bite wheel (27); The conveying pipe (25) is provided with a through hole (28), and the engaging portion of the engaging wheel (27) engages with the consumable at the through hole (28) on the conveying pipe (25), and the consumable is driven to move in the conveying pipe (25) through the forward and reverse rotation of the motor (26).

3. The moisture-proof conveying device for FDM printing consumables according to claim 2, characterized in that: A stopper (29) is provided below the through hole (28), and the consumable material is engaged with the engaging portion of the engaging wheel (27) through the stopper (29).

4. The moisture-proof conveying device for FDM printing consumables according to claim 3, characterized in that: The terminating member (29) comprises an electromagnet (30) and a push rod (31) fixed at an end position of the electromagnet (30), and the end of the push rod (31) is located directly below the through hole (28).

5. The moisture-proof conveying device for FDM printing consumables according to claim 1, characterized in that: The outlet is sealed when not printing.

6. The moisture-proof conveying device for FDM printing consumables according to claim 1, characterized in that: The support assembly (23) includes a weighing plate (32) installed inside the storage box, side plates (33) are installed on both sides of the weighing plate (32), a fixed shaft (34) is installed between the two groups of side plates (33), the two groups of side plates (33) are fixed to the weighing plate (32) through the fixed shaft (34), and a rotating shaft (35) rotatably connected to the storage wheel (22) is installed between the side plates (33); The gravity sensor (24) is installed at the bottom of the weighing plate (32).

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