CN219276687U

CN219276687U - Feeding system and photocuring molding equipment

Info

Publication number: CN219276687U
Application number: CN202223013632.0U
Authority: CN
Inventors: 余军雄
Original assignee: Shenzhen Anycubic Technology Co Ltd
Current assignee: Shenzhen Anycubic Technology Co Ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-06-30
Anticipated expiration: 2032-11-11

Abstract

The utility model discloses a feeding system and a photo-curing forming device, which are characterized in that a storage container and a container heating assembly are arranged to heat printing materials contained in the storage container in advance, and then the heated printing materials are conveyed into a trough, so that the problem of large temperature difference of the printing materials in the trough is avoided. The main technical scheme of the utility model is as follows: a feed system includes a storage container for holding printing material; the container heating assembly is connected with the storage container and is in direct contact or indirect contact with the printing material so as to heat the printing material in the storage container; and the feeding assembly is used for conveying the printing material into the trough. The utility model is mainly used for providing printing materials.

Description

Feeding system and photocuring molding equipment

Technical Field

The utility model relates to the technical field of 3D printing, in particular to a feeding system and a light curing forming device.

Background

In a common photo-curing molding device, a material tank is placed on a light source of a printer after a printing material is placed in the material tank, light irradiates the printing material to enable the printing material to be cured, for example, the printing material is extremely susceptible to temperature influence in the curing molding process of liquid resin, for example, when a machine is used for printing, the temperature of resin at the bottom of the material tank can be increased due to long-time contact with an exposure screen, if the working environment temperature of the machine is lower, the temperature difference of the resin can be formed, after a layer of the resin is cured, a molding platform lifts up a cured printing model to enable the cured printing model to be peeled off from the bottom of the material tank, and the resin with lower upper temperature is involved in the bottom of the model, so that the printing quality of the model can be directly influenced, for example, the problems of uneven curing of the model, occurrence of cavities and the like are caused.

In order to avoid the influence of low temperature on the forming of the printing material, heating equipment is generally adopted to heat the printing material in the curing process of the printing material, and a heating device is generally adopted to heat the printing material in a trough in the existing heating mode. In the patent of publication number CN205467374U, a photocuring 3D printer heating trough is disclosed, a plurality of heating holes are formed in the side wall of a printing resin trough, heating rods are inserted into the heating holes, the side wall of the trough is heated through the heating rod inserting trough, and then heat is transferred to printing resin. This scheme is being close to the printing resin temperature of silo lateral wall region higher, and is used for printing the printing resin temperature of central region lower, leads to the silo interior printing resin temperature inhomogeneous, influences the printing effect.

Disclosure of Invention

In view of the above, the embodiment of the utility model provides a feeding system and a photo-curing forming device, which are used for solving the problem that the temperature difference of printing materials in different areas is large due to heating of the printing materials in a trough.

In order to achieve the above purpose, the present utility model mainly provides the following technical solutions:

in one aspect, the present utility model provides a feed system for feeding a trough (900) of a light curing forming apparatus, the feed system comprising:

A storage container (100), the storage container (100) being used for containing printing materials;

a container heating assembly (120), the container heating assembly (120) being connected to the storage container (100) and being in direct or indirect contact with the printing material to heat the printing material in the storage container (100);

a feed assembly (200), the feed assembly (200) being for delivering printing material into a chute (900).

Wherein the container heating assembly (120) is at least partially disposed within the storage container (100) and contacts the printing material within the storage container (100) to heat the printing material; or (b)

The container heating assembly (120) is arranged on the outer side of the storage container (100) and connected with the side wall of the storage container (100) to heat printing materials in the storage container (100); or (b)

The storage container (100) is of a cavity structure with an opening, the container heating assembly (120) is connected to the opening, the container heating assembly (120) and the storage container (100) are enclosed to form a containing cavity, and printing materials are contained in the containing cavity.

If the container heating assembly (120) is at least partially disposed within the storage container (100) and contacts the printing material within the storage container (100) to heat the printing material, then wherein:

the container heating assembly (120) comprises a container heating element (110) with a heating function, the storage container (100) comprises a containing cavity, the containing cavity is surrounded by a container side wall, the container heating element (110) is connected with the container side wall, the container heating element (110) is at least partially positioned in the containing cavity and is in contact with printing materials in the storage container (100) to heat the printing materials, the containing cavity is used for containing the printing materials, and the container heating element (110) is a heating rod; or (b)

The container heating assembly (120) comprises a container heating part (110) with a heating function, at least one through hole is formed in the storage container (100), the container heating part (110) is a heating rod, the heating rod is connected in the through hole in a penetrating mode, and the storage container (100) is made of a heat conducting material.

If the container heating assembly (120) is disposed outside the storage container (100) and connected to a sidewall of the storage container (100) to heat the printing material in the storage container (100), wherein:

the container heating assembly (120) comprises a container heating part (110) with a heating function, the material of the storage container (100) comprises a heat conduction material, the container heating part (110) is arranged on the outer side of the storage container (100) and is connected with the side wall of the storage container (100) to heat printing materials in the storage container (100), and the container heating part (110) is adhered to and abutted against the outer wall of the storage container (100);

the container heating member (110) is a heating plate, and the heat conductive material is a metal material.

If the storage container (100) is of a cavity structure with an opening, the container heating assembly (120) is connected to the opening, the container heating assembly (120) and the storage container (100) are enclosed to form a containing cavity, and the containing cavity is used for containing printing materials, then the printing materials are contained in the containing cavity:

the container heating assembly (120) comprises a container heating part (110) with a heating function, the container heating part (110) is connected to an opening, the container heating part (110) and the storage container (100) are enclosed to form a containing cavity, the edge of the container heating part (110) is flush with and attached to the opening edge of the cavity structure of the storage container (100), the storage container (100) is made of a heat conducting material, the container heating part (110) is made of a heating plate, and the heat conducting material is made of a metal material.

The feeding system further comprises a main controller (300), wherein the main controller (300) is electrically connected with the container heating assembly (120) to control the container heating assembly (120) to heat; the container heating assembly (120) includes a container heating module (310) and a container heating member (110);

the container heating module (310) comprises a first switch element (D1) and a second switch element (D2);

the first end of the container heating element (110) is electrically connected with a power supply, the control end of the first switching element (D1) is electrically connected with the main controller (300), the first end of the first switching element (D1) is electrically connected with the second end of the container heating element (110), the second end of the first switching element (D1) is grounded, the control end of the second switching element (D2) is electrically connected with the main controller (300), the first end of the second switching element (D2) is electrically connected with the second end of the container heating element (110), and the second end of the second switching element (D2) is grounded;

the container heating module (310) further comprises a first capacitor (C1), a first end of the first capacitor (C1) is electrically connected with the power supply, and a second end of the first capacitor (C1) is electrically connected with the first end of the first switch piece (D1) and/or the first end of the second switch piece (D2).

The feeding system further comprises a container temperature measuring module (320), the container temperature measuring module (320) is electrically connected with the main controller (300), the container temperature measuring module (320) is in direct contact or indirect contact with at least one of the container heating piece (110), the storage container (100) and the printing material, the container temperature measuring module (320) is used for acquiring first temperature information of the substances in direct contact or indirect contact, and the main controller (300) is used for controlling the container heating piece (110) to heat according to the first temperature information;

The container temperature measurement module (320) comprises a thermistor (R3) and a voltage division circuit, wherein the thermistor (R3) is in direct contact or indirect contact with at least one of the container heating piece (110), the storage container (100) and the printing material, the first end of the thermistor (R3) is electrically connected with a power supply, the second end of the thermistor (R3) is electrically connected with the first end of the voltage division circuit, the second end of the voltage division circuit is grounded, and the second end of the thermistor (R3) is electrically connected with the main controller (300).

Wherein, the feeding system still includes silo heating module (330) and firing equipment, and firing equipment passes through silo heating module (330) and is connected with master controller (300) electricity, and master controller (300) are used for heating the printing material in silo (900) through silo heating module (330) control firing equipment.

The trough heating module (330) comprises a heating control unit (331) and a fan control unit (332);

the heating device comprises a trough heating piece (340) and a controllable fan (350);

the heating control unit (331) and the fan control unit (332) are electrically connected with the main controller (300), the heating control unit is electrically connected with the trough heating piece (340) to control the trough heating piece (340) to generate heat, the fan control unit (332) is electrically connected with the controllable fan (350), the controllable fan is installed above one side of the trough and is arranged opposite to the trough, and the fan control unit is used for controlling the controllable fan (350) to generate air quantity so as to transfer the heat of the trough heating piece (340) to printing materials in the trough (900).

The heating control unit (331) comprises a third switch piece (D3), the first end of the trough heating piece (340) is electrically connected with a power supply, the first end of the third switch piece (D3) is electrically connected with the second end of the trough heating piece (340), the second end of the third switch piece (D3) is grounded, and the control end of the third switch piece (D3) is electrically connected with the main controller (300);

the heating control unit (331) further comprises a third capacitor (C3), a first end of the third capacitor (C3) is electrically connected with the power supply, and a second end of the third capacitor (C3) is electrically connected with a first end of the third switch piece (D3);

the heating control unit (331) further comprises a level conversion chip (U1), the control end of the third switch piece (D3) is electrically connected with the main controller (300) through the level conversion chip (U1), wherein the input end of the level conversion chip (U1) is electrically connected with the main controller (300), the output end of the level conversion chip (U1) is electrically connected with the control end of the third switch piece (D3), and the power end of the level conversion chip (U1) is electrically connected with the power supply;

the fan control unit (332) comprises a fourth switch piece (D4), the first end of the controllable fan (350) is electrically connected with the power supply, the first end of the fourth switch piece (D4) is electrically connected with the second end of the controllable fan (350), the second end of the fourth switch piece (D4) is grounded, and the control end of the fourth switch piece (D4) is electrically connected with the main controller (300);

The fan control unit (332) further includes a fourth capacitor (C4), a first end of the fourth capacitor (C4) is electrically connected to the power supply, and a second end of the fourth capacitor (C4) is grounded.

The feeding system further comprises a trough temperature measuring module (360), the trough temperature measuring module (360) is electrically connected with the main controller (300), the trough temperature measuring module (360) is arranged opposite to printing materials in the trough (900), the trough temperature measuring module (360) is used for acquiring second temperature information, the main controller (300) is used for controlling heating equipment to heat according to the second temperature information, and the second temperature information is used for representing the temperature of the printing materials in the trough (900);

the trough temperature measurement module (360) comprises an infrared temperature sensor which is arranged opposite to the printing material in the trough (900).

The feeding system further comprises a main controller (300), wherein the main controller (300) is electrically connected with the feeding assembly (200) to control the feeding assembly (200) to convey printing materials in the storage container (100) to the trough (900);

one end of the feeding component (200) is communicated with the material storage container (100), and the other end of the feeding component (200) is communicated with the material groove (900);

wherein, the feeding component (200) comprises a feeding pipe (210) and a driving piece (220), one end of the feeding pipe (210) is communicated with the storage container (100), and the other end of the feeding component (200) is communicated with the trough (900);

The driving piece (220) is arranged on the feeding pipe (210), the driving piece (220) is electrically connected with the main controller (300), and the main controller (300) is used for controlling the driving piece (220) to transmit printing materials from the material storage container (100) to the material groove (900).

In another aspect, the utility model provides a light curing molding apparatus comprising a feed system of any of the preceding claims.

According to the feeding system provided by the embodiment of the utility model, the printing materials contained in the storage container are heated in advance mainly through the storage container and the container heating assembly (120), and the heated printing materials are conveyed into the trough, so that the problem of large temperature difference of the printing materials in the trough is avoided. In the prior art, a heating rod is generally used for connecting the side wall of the trough to heat, then heat is transferred to printing materials, the temperature of the printing materials close to the side wall area of the trough is higher, the temperature of the printing materials in the central area for printing is lower, so that the temperature of the printing materials in the trough is uneven, and the printing quality is affected. Compared with the prior art, in this application file, set up the storage container, storage container stores printing material, and container heating assembly (120) are used for heating the printing material in the storage container, can then transmit the printing material after the heating to the silo for the printing material temperature in each position in the silo is even, can not appear because the model formation distortion that the resin difference in temperature of different positions leads to in the silo.

Drawings

FIG. 1 is a schematic view of a part of a feeding system according to an embodiment of the present utility model;

FIG. 2 is a partial block diagram of a feed system according to an embodiment of the present utility model;

fig. 3 is a schematic circuit diagram of a feeding system according to an embodiment of the present utility model.

Reference numerals illustrate: the storage container-100, the container heating part-110, the container heating component-120, the feeding component-200, the feeding pipe-210, the driving part-220, the master controller-300, the container heating module-310, the container temperature measuring module-320, the trough heating module-330, the heating control unit-331, the fan control unit-332, the trough heating part-340, the controllable fan-350, the trough temperature measuring module-360, the trough-900, the first switching part-D1, the second switching part-D2, the third switching part-D3, the fourth switching part-D4, the first capacitor-C1, the second capacitor-C2, the third capacitor-C3, the fourth capacitor-C4, the first resistor-R1, the second resistor-R2, the thermistor-R3, the fourth resistor-R4 and the level conversion chip-U1.

Detailed Description

In order to further describe the technical means and effects adopted by the utility model to achieve the preset aim, the following detailed description will refer to the specific implementation, structure, characteristics and effects of the feeding system according to the utility model with reference to the accompanying drawings and the preferred embodiments.

In one aspect, as shown in fig. 1-2, embodiments of the present utility model provide a feed system for feeding a trough (900) of a light curing forming apparatus, the feed system comprising:

Wherein the storage container (100) is a container different from the trough (900), and the storage container (100) is used for providing printing material to the trough (900) before printing starts or when the printing material in the trough (900) is insufficient. The structure of the storage container (100) can be various, and the container heating assembly (120) can be various according to the different structures of the storage container (100). The magazine (100) may include a receiving cavity or the magazine (100) and the container heating assembly (120) together enclose a receiving cavity for receiving printing material. In embodiments where the storage container (100) and the container heating assembly (120) enclose a receiving cavity together, the storage container (100) is used for containing printing materials, which means that the storage container (100) and the container heating assembly (120) cooperate to contain printing materials. The container heating assembly (120) can be in direct contact with the printing material, heating of the printing material is performed through direct heat transfer with the printing material, and the container heating assembly (120) can also be out of direct contact with the printing material, such as being adhered to the side wall of the storage container (100) and heating of the printing material in the storage container (100) is realized through heat conduction of the side wall of the storage container (100). After the heating of the container heating assembly (120) is finished, the printing material in the storage container (100) reaches a certain preset range, and then the heated printing material is transmitted to the trough (900) through the feeding assembly (200), so that the temperature of the printing material in the trough (900) is uniform, the printing effect is ensured, the process that the printing material stands still in the trough (900) and waits for heating is shortened, and the printing material is prevented from being polluted by the environment. The trough (900) is used for containing resin and printing the model shaping.

When the heating mode of heating the printing material in the material storage container (100) is used, the printing material in the material storage container (900) can not be heated, for example, when the printing process is faster and the replenishment frequency of the printing material in the material storage container (100) is higher, the printing material in the material storage container (900) is always at a higher temperature, and additional heating of the printing material in the material storage container (900) is not needed. Or, can also heat the printing material in silo (900), the in-process that printing material was transmitted to silo (900) by magazine (100) has the heat loss, through carrying out the reheat to the printing material in silo (900), guarantees that printing material temperature satisfies the requirement, and can carry out continuous heating in the reprinting process. It can be appreciated that the printing material heated in the storage container (100) greatly shortens the heating time of the printing material in the trough (900), and avoids the problem of large temperature difference caused by the low-temperature printing material supplemented in the trough (900), even if the local area of the trough (900) is heated, the printing material in the trough (900) has higher basic temperature, so that larger temperature difference can not be caused, printing accuracy is ensured, and the problems of uneven model, deformation and the like caused by the temperature difference are avoided.

According to the feeding system provided by the embodiment of the utility model, the printing materials contained in the storage container are heated in advance mainly through the storage container and the container heating assembly (120), and the heated printing materials are conveyed into the trough (900), so that the problem of large temperature difference of the printing materials in the trough (900) is avoided. In the prior art, a heating rod is generally used for connecting the side wall of the trough (900) to heat, then heat is transferred to printing materials, the temperature of the printing materials close to the side wall area of the trough (900) is higher, the temperature of the printing materials in the central area for printing is lower, the temperature of the printing materials in the trough (900) is uneven, and the printing quality is affected. Compared with the prior art, in this application file, set up the storage container, storage container stores printing material, and container heating assembly (120) are used for heating the printing material in the storage container, can then transmit the printing material after the heating to silo (900) for the printing material temperature in each position is even in silo (900), can not appear because the model formation distortion that the resin difference in temperature of different positions leads to in silo (900).

Moreover, it can be appreciated that the process of transporting the heated printing material to the trough (900) is also a process of making the printing material interact and conduct heat in the process of drawing and pipeline transportation, so that the uniformity of the printing material input to the trough (900) can be better.

In particular, the printing material may be a resin or other printing material suitable for photo-curing, which is not particularly limited in this application.

Several specific forms of the magazine (100) and the magazine heating assembly (120) are described in detail below:

first, a container heating assembly (120) is at least partially disposed within the magazine (100) and contacts the printing material within the magazine (100) to heat the printing material.

In some embodiments, a heat generating portion of the container heating assembly (120) is located within the magazine (100) to heat the printing material within the magazine (100). More specifically, the container heating assembly (120) comprises a container heating element (110) with a heating function, the storage container (100) comprises a containing cavity, the containing cavity is surrounded by a container side wall, the container heating element (110) is connected with the container side wall, and the container heating element (110) is partially or completely positioned in the containing cavity and is in contact with printing materials in the storage container (100) so as to heat the printing materials. In some other embodiments, the container heating element (110) may not be connected to the container sidewall, such as the container heating element (110) hovering within the receiving cavity, such as in a central position, such as a thermally conductive suspended ball, so that the contact area between the container heating element (110) and the printing material is larger, and the heating is more uniform and sufficient.

In one embodiment, the receiving chamber is configured to receive printing material and the container heating element (110) is a heating rod. The container heating assembly (120) comprises a container heating part (110) with a heating function, at least one through hole is formed in the storage container (100), the container heating part (110) is a heating rod, the heating rod is connected in the through hole in a penetrating mode, the storage container (100) is made of a heat conducting material, the heating rod is electrified to heat, and the printing material is heated through heat exchange between the heating rod and the printing material. Wherein, the through hole can be a through hole or a hole digging. Specifically, the material storage container (100) may be made of a heat conducting material, or the material storage container (100) may be made of a heat conducting material and other materials together. The heat conducting material can be metal material or other materials with better heat conducting property.

Specifically, the number of the container heating members (110) may be plural, such as plural heating bars fixed to the magazine (100) and extending into the accommodating chamber to contact the printing material, thereby heating the printing material. The container heating element (110) may also be a heating plate, a heating tube, or the like.

And secondly, the container heating assembly (120) is arranged on the outer side of the storage container (100) and is connected with the side wall of the storage container (100) to heat the printing materials in the storage container (100).

The container heating assembly (120) comprises a container heating part (110) with a heating function, the material of the storage container (100) comprises a heat conduction material, the container heating part (110) is arranged on the outer side of the storage container (100) and is connected with the side wall of the storage container (100) to heat printing materials in the storage container (100), and the container heating part (110) is adhered to and abutted against the outer wall of the storage container (100). Specifically, the material storage container (100) may be made of a heat conducting material, or the material storage container (100) may be made of a heat conducting material and other materials together. The heat conducting material can be metal material or other materials with better heat conducting property.

The container heating piece (110) is abutted with the outer wall of the storage container (100) and is not in direct contact with printing materials, the printing materials are prevented from being heated and attached to the container heating piece (110), the heating effect is affected, and the container heating piece (110) conducts heat by utilizing the outer wall of the storage container (100) to heat the printing materials. The container heating member (110) is a heating plate, and the heat conductive material is a metal material. It is understood that the large surface area of the plate-like structure of the container heating member (110) is advantageous in achieving uniform heating of the printing material in the magazine (100). In addition, the outer wall of the storage container (100) conducts heat to heat the printing material, so that the heating uniformity of the printing material is better.

Thirdly, the storage container (100) is of a cavity structure with an opening, the container heating assembly (120) (110) is connected to the opening, the container heating assembly (120) and the storage container (100) are enclosed to form a containing cavity, and the containing cavity is used for containing printing materials.

The container heating assembly (120) comprises a container heating part (110) with a heating function, the container heating part (110) is connected to the opening, the container heating part (110) and the storage container (100) are enclosed to form a containing cavity, the edge of the container heating part (110) is flush with and attached to the opening edge of the cavity structure of the storage container (100), the storage container (100) is made of a heat conducting material, and the container heating part (110) is a heating plate. It is understood that the large surface area of the plate-like structure of the container heating member (110) is advantageous in achieving uniform heating of the printing material in the magazine (100). The heat conducting material can be metal material or other materials with better heat conducting property. Specifically, the material storage container (100) may be made of a metal material, or the material storage container (100) may be made of a metal material and other materials together.

The metal materials described in the above embodiments may be single metals, such as copper, iron, aluminum, and the like, or may be alloys. It will be appreciated that metals, which carry certain impurities such as carbon and the like during the manufacturing process, should also be considered metals.

In certain embodiments, the opening of the magazine (100) is provided at a side of the magazine (100). Alternatively, the opening of the magazine (100) is arranged at the top or bottom of the magazine (100). In certain embodiments, the opening of the magazine (100) is provided on the side of the magazine where the surface area is larger. Thus, the opening of the storage container (100) is arranged on the surface with larger surface area of the storage container (100), so that the container heating element (110) is arranged on the surface with larger surface area of the storage container (100), the heating area of the container heating element (110) for heating printing materials can be enlarged, and the heating efficiency is improved.

In this way, the plate-shaped container heating member (110) is used as a part of the side wall of the storage container (100) to heat the printing material by directly contacting the printing material, and the heating area is large, so that the heating speed is high, the heating uniformity is high, and the printing material heating efficiency is improved. The heating plate is not limited to a single one-piece heating plate, and the storage container (100) can be provided with a plurality of openings, and a plurality of heating plates are respectively arranged at the plurality of openings, so that the heating efficiency is increased.

In addition, the form of container heating element (110) can also be multiple, and this application does not limit, and all can hold printing material's container to and can be to printing material heating's technical scheme in the container all fall under the protection scope of this application.

In one embodiment, the feed system further comprises a master controller (300), the master controller (300) being electrically connected to the container heating assembly (120) to control heating of the container heating assembly (120); the container heating assembly (120) includes a container heating module (310) and a container heating element (110).

The master controller (300) can be a separate controller of the feeding system or can be a master controller of the light curing molding equipment. In one embodiment, the master (300) is an MCU. The signal output end of the main controller (300) is connected with the container heating module (310) and is used for transmitting signals to the container heating module (310), and the container heating module (310) is used for controlling the container heating element (110) to be electrified and heated so as to heat the printing material. The control of the heating temperature of the printing material can be performed by controlling the heating time period, or the control of the heating temperature of the printing material can be performed by providing a temperature detecting device on the storage container (100).

In one embodiment, as shown in fig. 3, the container heating module (310) includes a first switch (D1) and a second switch (D2). The first end and the power electricity of container heating spare (110) are connected, and the control end and the main control ware (300) electricity of first switch piece (D1) are connected, and the first end and the second end electricity of container heating spare (110) of first switch piece (D1) are connected, and the second ground connection of first switch piece (D1), the control end and the main control ware (300) electricity of second switch piece (D2) are connected, and the first end and the second end electricity of container heating spare (110) of second switch piece (D2) are connected. Therefore, the main controller performs on-off control on the container heating part through the first switch and the second switch which are connected in parallel, so that the working current for heating the container can be shunted through the first switch and the second switch, and the container heating part can flow through larger current under the condition that the safety of a circuit is ensured. From another angle, the main controller can carry out switch control on the container heating piece through the first switch and the second switch, so that when the first switch or the second switch breaks down suddenly, the normal work of a circuit can be ensured, and the running stability of equipment is enhanced.

The first switch piece (D1) and the second switch piece (D2) are used for being opened under the control of signals of the master controller (300), and then the container heating piece (110) is electrified to generate heat. The first switch piece (D1) and the second switch piece (D2) are connected into the power supply loop of the container heating piece (110) in a parallel connection mode, and the first switch piece (D1) and the second switch piece (D2) jointly realize the opening of the loop of the container heating piece (110), so that the container heating piece (110) can work with higher heating power, and meanwhile, the requirements on the performances of the first switch piece (D1) and the second switch piece (D2) are reduced. The first switching element (D1) and the second switching element (D2) may be transistors, such as NPN transistors, PNP transistors, N-channel MOS transistors, or P-channel MOS transistors, and the first switching element (D1) and the second switching element (D2) may be a single transistor or a combination of multiple transistors. In one embodiment, the first switch piece (D1) and the second switch piece (D2) are N-channel enhancement type MOS transistors NMOS, and the NMOS has small on-resistance and is easy to produce. In one embodiment, the container heating module (310) further includes a first resistor (R1), a second resistor (R2) and a first capacitor (C1), the gate G of the first switching element (D1) is electrically connected to the signal output end of the main controller (300) through the first resistor R1, the first resistor R1 is used for preventing overvoltage breakdown between the gate G and the source S of the first switching element (D1), the drain D of the first switching element (D1) is electrically connected to the power supply end of the container heating element (110), and the source S of the first switching element (D1) is grounded. The grid G of the second switch piece (D2) is electrically connected with the signal output end of the main controller (300) through a second resistor R2, the second resistor R2 is used for preventing overvoltage breakdown of the grid G and the source S of the second switch piece (D2), the drain electrode D of the second switch piece (D2) is electrically connected with the power supply end of the container heating piece (110), and the source S of the second switch piece (D2) is grounded. The first switch piece (D1) and the second switch piece (D2) control the on-off of the current between the drain electrode D and the source electrode S according to the control signal received by the grid electrode G, so that the current flowing through the container heating piece (110) is controlled, the current flowing through the container heating piece (110) is twice the current flowing through the drain electrode D and the source electrode S of the first switch piece (D1) or the second switch piece (D2), the power of the container heating piece (110) is ensured, the requirement on the performance of NMOS is reduced, and the cost is saved. The two ends of the first capacitor (C1) are respectively connected with a power supply and the drain electrode D of the first switch piece (D1), so that the filtering effect is achieved.

In one embodiment, as shown in fig. 3, the feeding system further includes a container temperature measuring module (320), the container temperature measuring module (320) is electrically connected to the main controller (300), and the container temperature measuring module (320) is in direct contact or indirect contact with at least one of the container heating element (110), the material storage container (100) and the printing material, the container temperature measuring module (320) is used for acquiring first temperature information of the directly contacted or indirectly contacted material, and the main controller (300) is used for controlling the container heating element (110) to heat according to the first temperature information.

The container temperature measurement module (320) feeds back the first temperature information to the main controller (300) so that the main controller (300) controls whether the container heating element (110) heats or not, and the temperature of the printing material is controlled within a certain range, so that the temperature is prevented from being too high or too low. The container temperature measuring module (320) may have various forms, in one embodiment, the container temperature measuring module (320) includes a thermistor (R3) and a voltage dividing circuit, the thermistor (R3) is in direct contact or indirect contact with at least one of the container heating element (110), the storage container (100) and the printing material, the voltage dividing circuit may specifically include a fourth resistor (R4) and a second capacitor (C2), a first end of the thermistor (R3) is electrically connected to a power supply, a second end of the thermistor (R3) is electrically connected to a first end of the fourth resistor (R4) and a first end of the second capacitor (C2), a second end of the fourth resistor (R4) and a second end of the second capacitor (C2) are grounded, and a second end of the thermistor (R3) is electrically connected to the master controller (300). Taking contact of the thermistor (R3) and the printing material as an example, in the whole heating process, the resistance of the thermistor (R3) can change along with the temperature change of the printing material, so that the partial pressure of the thermistor (R3) and the partial pressure of the fourth resistor (R4) change, the output voltage value of the second end of the thermistor (R3) changes, and the main controller (300) acquires the voltage value through ADC sampling, and then acquires the temperature of the printing material. After the printing material temperature reaches the set point, the master controller (300) will stop heating the container heating element (110). It will be appreciated that the purpose of the thermistor (R3) contacting the container heating element (110) and the magazine (100) is to obtain the temperature of the printing material, e.g. when the magazine (100) is of a thermally conductive material, the thermistor (R3) is in contact with the magazine (100).

In another embodiment, the feeding system may not include a temperature measurement module (320), but rather control the temperature of the printing material in the storage container (100) by controlling the length of time that the heating element (110) of the container heats the printing material. For example, by controlling the container heating member (110) to operate for a second preset time period every first preset time period, thermal control of the temperature of the printing material in the magazine (100) is achieved, and overheating or overcooling of the temperature can be prevented.

In one embodiment, as shown in fig. 2, the feeding system further includes a tank heating module (330) and a heating device, the heating device is electrically connected with the master controller (300) through the tank heating module (330), and the master controller (300) is used for controlling the heating device to heat the printing material in the tank (900) through the tank heating module (330).

Because the printing material has heat loss through the in-process that transmits silo (900) to and when printing the process and going on slower, the printing material temperature in silo (900) will also continuously drop, through carrying out the reheat to the printing material in silo (900), guarantee to print the material temperature and satisfy the requirement, and can carry out continuous heating in the reprinting process. The specific form of the trough heating module (330) and the heating device can be various, such as a heating rod or a resistance wire.

In one embodiment, the trough heating module (330) includes a heating control unit (331) and a fan control unit (332). The heating apparatus includes a trough heater (340) and a controllable fan (350). The heating control unit (331) and the fan control unit (332) are electrically connected with the main controller (300), the heating control unit is electrically connected with the trough heating piece (340) to control the trough heating piece (340) to generate heat, the fan control unit (332) is electrically connected with the controllable fan (350), and the fan control unit (332) is used for controlling the controllable fan (350) to generate air quantity so as to transfer heat of the trough heating piece (340) to printing materials in the trough (900).

It will be appreciated that in the printing material transported to the trough (900), the printing material at the upper part of the trough (900) is easier to cool due to heat exchange with air, while in the above embodiment, the heating element (340) generates heat through the trough heating element (340) and generates air quantity through the controllable fan (350), the heat of the trough heating element (340) is transferred to the printing material in the trough (900), the printing material is heated, and the printing material at the upper part of the trough (900) which is easier to cool can be accurately heated and warmed, so that the printing material at each position in the trough can maintain a uniform and more constant temperature.

The heating control unit (331) may be a PCT heater, where the PCT heater is fixed on one side of the tank (900) and faces the surface of the printing material in the tank (900), and the controllable fan (350) is located on one side of the PCT heater opposite to the tank (900) and is used to blow the heat generated by the PCT heater to the surface of the printing material in the tank (900) for heating the printing material.

In one embodiment, as shown in fig. 3, the heating control unit (331) includes a third switch element (D3), a first end of the trough heating element (340) is electrically connected to the power supply, a first end of the third switch element (D3) is electrically connected to a second end of the trough heating element (340), a second end of the third switch element (D3) is grounded, and a control end of the third switch element (D3) is electrically connected to the master controller (300).

The third switch piece (D3) is used for being opened under the control of signals of the main controller (300), so that the trough heating piece (340) is electrified to generate heat. The third switching element (D3) may be a transistor, such as an NPN transistor, a PNP transistor, an N-channel MOS transistor, or a P-channel MOS transistor, and the third switching element (D3) may be a single transistor or a combination of multiple transistors. In one embodiment, the third switch (D3) is an N-channel enhancement MOS transistor NMOS. In one embodiment, the heating control unit (331) further includes a fifth resistor (R5), a sixth resistor (R6) and a third capacitor (C3), the gate G of the third switching element (D3) is electrically connected to the signal output end of the master controller (300) through the fifth resistor (R5), and the fifth resistor (R5) is used for preventing overvoltage breakdown of the gate G and the source S of the third switching element (D3), the drain D of the third switching element (D3) is electrically connected to the power supply end of the trough heating element (340), and the source S of the third switching element (D3) is grounded. The third switch piece (D3) controls the on-off of the current between the drain electrode D and the source electrode S according to the control signal received by the grid electrode G, and further controls the current flowing through the trough heating piece (340). The two ends of the sixth resistor (R6) are respectively connected with the grid electrode G and the source electrode S of the third switch piece (D3), the sixth resistor (R6) is a pull-down resistor, and the sixth resistor (R6) is used for improving the current filling capacity of the grid electrode G of the third switch piece (D3) and guaranteeing the rapid action of the third switch piece (D3). The two ends of the third capacitor (C3) are respectively connected with a power supply and the drain electrode D of the third switch piece (D3), so that the filtering effect is achieved.

In one embodiment, the heating control unit (331) further includes a level conversion chip (U1), the control end of the third switch element (D3) is electrically connected to the master controller (300) through the level conversion chip (U1), wherein the input end of the level conversion chip (U1) is electrically connected to the master controller (300), the output end of the level conversion chip (U1) is electrically connected to the control end of the third switch element (D3), and the power end of the level conversion chip (U1) is electrically connected to the power supply.

Because the control signal of MCU's output is 3.3V level, the power of PTC heater is usually bigger, in order to guarantee PTC heater and open smoothly, turns into the control signal of 5V with the control signal of 3.3V through level conversion chip (U1), realizes opening third switch piece (D3) completely. The power end of the level conversion chip (U1) is electrically connected with a 5V power supply, and the output end of the level conversion chip (U1) is electrically connected with a fifth resistor (R5).

In one embodiment, as shown in fig. 3, the fan control unit (332) includes a fourth switch element (D4), the first end of the controllable fan (350) is electrically connected to the power source, the first end of the fourth switch element (D4) is electrically connected to the second end of the controllable fan (350), the second end of the fourth switch element (D4) is grounded, and the control end of the fourth switch element (D4) is electrically connected to the main controller (300).

The fourth switch piece (D4) is used for being opened under the control of the signal of the master controller (300), and then the controllable fan (350) is electrified to blow. The fourth switching element (D4) may be a transistor, such as an NPN transistor, a PNP transistor, an N-channel MOS transistor, or a P-channel MOS transistor, and the fourth switching element (D4) may be a single transistor or a combination of multiple transistors. In one embodiment, the fourth switching element (D4) is an N-channel enhancement MOS transistor NMOS. In one embodiment, the fan control unit (332) further includes a seventh resistor (R7), an eighth resistor (R8), and a fourth capacitor (C4), the gate G of the fourth switching element (D4) is electrically connected to the signal output end of the main controller (300) through the seventh resistor (R7), and the seventh resistor (R7) is used for preventing overvoltage breakdown between the gate G and the source S of the third switching element (D3), the drain D of the fourth switching element (D4) is electrically connected to the power supply end of the controllable fan (350), and the source S of the fourth switching element (D4) is grounded. The fourth switching element (D4) controls the on-off of the current between the drain electrode D and the source electrode S according to the control signal received by the grid electrode G, and further controls the current flowing through the controllable fan (350). The two ends of the eighth resistor (R8) are respectively connected with the grid G and the source S of the fourth switching element (D4), the eighth resistor (R8) is a pull-down resistor, and the eighth resistor (R8) is used for improving the current filling capacity of the grid G of the fourth switching element (D4) and ensuring the rapid action of the fourth switching element (D4). One end of the fourth capacitor (C4) is connected with the power end of the controllable fan (350), the other end of the fourth capacitor (C4) is grounded, and the fourth capacitor (C4) plays a role in filtering.

In some embodiments, the feed system further comprises a trough temperature measurement module (360), the trough temperature measurement module (360) is electrically connected with the master controller (300), and the trough temperature measurement module (360) is configured to be disposed opposite to the printing material in the trough (900), the trough temperature measurement module (360) is configured to obtain second temperature information, the master controller (300) is configured to control the heating device to heat according to the second temperature information, and the second temperature information is configured to indicate a temperature of the printing material in the trough (900).

The trough temperature measurement module (360) can specifically comprise an infrared temperature sensor which is arranged opposite to the printing material in the trough (900). The infrared temperature sensor is a non-contact temperature sensor, when the infrared temperature sensor is used, the infrared temperature sensor is just opposite to printing materials in the trough (900), the temperature of the printing materials is detected through infrared detection, when the temperature of the printing materials is higher than a preset value, the infrared temperature sensor sends a feedback signal to the main controller (300), then the main controller (300) controls the heating equipment to stop heating through the trough heating module (330) according to the feedback signal, so that the temperature of the printing materials in the trough (900) is always in a preset range, and the printing materials at all positions in the trough (900) can maintain uniform and more constant temperature. In one embodiment, a cantilever may be provided in the trough (900) with an infrared temperature sensor secured to the cantilever. It can be seen that the infrared temperature sensor is fixed on the cantilever, and can accurately detect the temperature of the printing material positioned near the printing area in the trough (900), so that the constant control of the temperature can be more facilitated, and a better printing effect can be achieved.

In other embodiments, the feed system may not include a tank temperature measurement module, but rather control the temperature of the printing material in the tank (900) by controlling the amount of time the heating device heats the printing material in the tank (900). For example, by controlling the heating device to operate for a fourth preset time period every third preset time period, thermal control of the temperature of the printing material in the hopper (900) is achieved, and overheating or overcooling of the temperature can be prevented.

It is understood that the power supplies for the different power utilization portions may be the same power supply, or may be different power supplies, as appropriate for the specific scenario. If the trough heating element (340) and the controllable fan (350) are electrically connected with power supplies, the power supplies are 24V power supplies, and the power supplies can be the same power supply or can be non-power supplies. Or, the container heating element (110) is electrically connected with a power supply, the power supplies are all 12V power supplies, and the power supplies of the trough heating element (340) and the controllable fan (350) are different power supplies.

In one embodiment, as shown in fig. 1 and 2, the feed system further includes a master controller (300), the master controller (300) being electrically connected to the feed assembly (200) to control the feed assembly (200) to transfer printing material in the storage container (100) to the chute (900). One end of the feeding component (200) is communicated with the material storage container (100), and the other end of the feeding component (200) is communicated with the material groove (900). The feeding assembly (200) comprises a feeding pipe (210) and a driving piece (220), one end of the feeding pipe (210) is communicated with the storage container (100), and the other end of the feeding assembly (200) is communicated with the trough (900). The driving piece (220) is arranged on the feeding pipe (210), the driving piece (220) is electrically connected with the main controller (300), and the main controller (300) is used for controlling the driving piece (220) to transmit printing materials from the material storage container (100) to the material groove (900).

The driving piece (220) can be an air pump, and the air pump sucks and transmits the heated printing material in the material storage container (100) to the trough (900), so that the printing material is supplemented into the trough (900), and printing failure caused by insufficient printing material is avoided. Printing material heating in the storage container (100) enables the temperature of the printing material transmitted into the trough (900) to be higher, the temperature of resin in the trough (900) is close to the temperature of the resin in the printing process, the phenomenon that the temperature of the resin is uneven due to the fact that low-temperature resin enters the trough (900) is avoided, and the time for heating the printing material in the trough (900) is shortened. In one embodiment, the main controller (300) acquires the output voltage value of the second end of the thermistor (R3) through ADC sampling, then acquires the temperature of the printing material, and after the temperature of the printing material reaches a set value, the main controller (300) stops heating the container heating element (110) and simultaneously sends an instruction to the driving element (220), and the driving element (220) starts to convey the heated printing material into the trough (900). The main controller (300) can start the PCT heater after the feeding component (200) finishes transmitting the printing material, and start the controllable fan (350) after the PCT heater is heated, so that the printing material is heated again, and the temperature of the printing material is ensured.

In another aspect, the present utility model provides a light curing molding device, including the feeding system of any one of the foregoing aspects, and a trough (900) and a base box, where the storage container (100) may be placed on one side of the light curing molding device or fixed on the base box, and the trough heating element (340) and the controllable fan (350) may be fixed on a top plate of the base box and disposed near the trough (900), so that the trough heating element (340) and the controllable fan (350) are disposed near the trough (900), and heat exchange efficiency may be improved, thereby enhancing heating efficiency for printing materials in the trough (900).

Wherein the container heating assembly (120) is at least partially disposed within the storage container (100) and contacts the printing material within the storage container (100) to heat the printing material; wherein:

the container heating assembly (120) comprises a container heating part (110) with a heating function, the storage container (100) comprises a containing cavity, the containing cavity is surrounded by a container side wall, the container heating part (110) is connected with the container side wall, the container heating part (110) is at least partially positioned in the containing cavity and is in contact with printing materials in the storage container so as to heat the printing materials, the containing cavity is used for containing the printing materials, and the container heating part (110) is a heating rod; or (b)

The container heating assembly (120) comprises a container heating part (110) with a heating function, at least one through hole is formed in the storage container (100), the container heating part (110) is a heating rod, the heating rod is connected in the through hole in a penetrating way, and the storage container (100) is made of a heat conducting material.

Wherein the container heating assembly (120) is arranged at the outer side of the storage container (100) and is connected with the side wall of the storage container (100) to heat the printing material in the storage container (100); wherein:

the container heating assembly (120) comprises a container heating part (110) with a heating function, the storage container (100) is made of a heat-conducting material, the container heating part (110) is arranged on the outer side of the storage container (100) and is connected with the side wall of the storage container (100) to heat printing materials in the storage container (100), and the container heating part (110) is adhered to and abutted against the outer wall of the storage container (100);

Wherein, storage container (100) is for having open-ended cavity structure, and container heating element (120) are connected in the opening, and container heating element (120) and storage container (100) enclose into the holding chamber, are used for holding printing material in the holding chamber, wherein:

the container heating assembly (120) comprises a container heating part (110) with a heating function, the container heating part (110) is connected to the opening, the container heating part (110) and the storage container (100) are enclosed to form a containing cavity, the edge of the container heating part (110) is flush with and attached to the opening edge of the cavity structure of the storage container (100), the storage container (100) is made of metal materials, and the container heating part (110) is a heating plate.

the heating control unit (331) and the fan control unit (332) are electrically connected with the main controller (300), the heating control unit is electrically connected with the trough heating piece (340) to control the trough heating piece (340) to generate heat, the fan control unit (332) is electrically connected with the controllable fan (350), the controllable fan (350) is arranged above one side of the trough (900) and is arranged opposite to the trough (900), and the fan control unit is used for controlling the controllable fan (350) to generate air quantity so as to transfer the heat of the trough heating piece (340) to printing materials in the trough (900). Moreover, the controllable fan (350) can be vertically arranged, so that the wind blown out by the controllable fan (350) is parallel to the horizontal plane of the printing material in the trough (900), and the wind blown out by the controllable fan (350) can uniformly exchange heat with the printing material on the liquid level at each position of the trough. Or, the controllable fan (350) can be obliquely arranged and oppositely arranged at a preset angle with the liquid level of the trough, so that the wind blown by the controllable fan (350) can be fully contacted with the liquid level of the printing material in the trough, and the heat conduction heating efficiency can be improved. In particular, the controllable fan (350) may be mounted over the long side, the wide side, or the diagonal side of the trough (900).

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A feed system for feeding a trough (900) of a photo-curing forming apparatus, the feed system comprising:

a magazine (100), the magazine (100) being for holding printing material;

a container heating assembly (120), the container heating assembly (120) being connected to the storage container (100) and in direct or indirect contact with the printing material to heat the printing material in the storage container (100);

-a feed assembly (200), the feed assembly (200) being adapted to transport the printing material into the chute (900).

2. A feed system as set forth in claim 1, wherein,

the container heating assembly (120) is at least partially disposed within the storage container (100) and contacts the printing material within the storage container (100) to heat the printing material; or (b)

The container heating assembly (120) is arranged outside the material storage container (100) and connected with the side wall of the material storage container (100) to heat printing materials in the material storage container (100); or (b)

The storage container (100) is of a cavity structure with an opening, the container heating assembly (120) is connected to the opening, the container heating assembly (120) and the storage container (100) are enclosed to form a containing cavity, and the containing cavity is used for containing the printing materials.

3. A feed system as set forth in claim 2, wherein,

if the container heating assembly (120) is at least partially disposed within the magazine (100) and in contact with the printing material within the magazine (100) to heat the printing material, then wherein:

the container heating assembly (120) comprises a container heating part (110) with a heating function, the storage container (100) comprises a containing cavity, the containing cavity is surrounded by a container side wall, the container heating part (110) is connected with the container side wall, the container heating part (110) is at least partially positioned in the containing cavity and is in contact with printing material in the storage container (100) so as to heat the printing material, the containing cavity is used for containing the printing material, and the container heating part (110) is a heating rod; or (b)

The container heating assembly (120) comprises a container heating part (110) with a heating function, at least one through hole is formed in the storage container (100), the container heating part (110) is a heating rod, the heating rod is connected in the through hole in a penetrating way, and the material of the storage container (100) comprises a heat conducting material;

if the container heating assembly (120) is arranged at the outer side of the material storage container (100) and is connected with the side wall of the material storage container (100) to heat the printing material in the material storage container (100); then wherein:

the container heating piece (110) is a heating plate, and the heat conduction material is a metal material;

if the storage container (100) is of a cavity structure with an opening, the container heating assembly (120) is connected to the opening, the container heating assembly (120) and the storage container (100) enclose a containing cavity, and the containing cavity is used for containing the printing material, then the container heating assembly comprises:

The container heating assembly (120) comprises a container heating part (110) with a heating function, the container heating part (110) is connected to the opening, the container heating part (110) and the storage container (100) are enclosed to form a containing cavity, the edge of the container heating part (110) is flush with and attached to the opening edge of the cavity structure of the storage container (100), the material of the storage container (100) comprises a heat conducting material, the container heating part (110) is a heating plate, and the heat conducting material is a metal material.

4. The feed system of claim 1, further comprising a master controller (300), the master controller (300) being electrically connected to the container heating assembly (120) to control heating of the container heating assembly (120); the container heating assembly (120) includes a container heating module (310) and a container heating element (110);

the container heating module (310) comprises a first switch (D1) and a second switch (D2);

The container heating module (310) further comprises a first capacitor (C1), a first end of the first capacitor (C1) is electrically connected with a power supply, and a second end of the first capacitor (C1) is electrically connected with the first end of the first switch piece (D1) and/or the first end of the second switch piece (D2).

5. A feed system as set forth in claim 4, wherein,

the feeding system further comprises a container temperature measuring module (320), wherein the container temperature measuring module (320) is electrically connected with the main controller (300), the container temperature measuring module (320) is in direct contact or indirect contact with at least one of the container heating piece (110), the material storage container (100) and the printing material, the container temperature measuring module (320) is used for acquiring first temperature information of a substance in direct contact or indirect contact, and the main controller (300) is used for controlling the container heating piece (110) to heat according to the first temperature information;

6. A feed system as set forth in claim 4, wherein,

the feeding system further comprises a trough heating module (330) and heating equipment, wherein the heating equipment is electrically connected with the main controller (300) through the trough heating module (330), and the main controller (300) is used for controlling the heating equipment to heat printing materials in the trough (900) through the trough heating module (330);

the heating device comprises a trough heating element (340) and a controllable fan (350);

the heating control unit (331) and the fan control unit (332) are electrically connected with the main controller (300), the heating control unit is electrically connected with the trough heating piece (340) so as to control the trough heating piece (340) to generate heat, the fan control unit (332) is electrically connected with the controllable fan (350), the controllable fan is installed above one side of the trough and is oppositely arranged with the trough, and the fan control unit is used for controlling the controllable fan (350) to generate air quantity so as to transfer the heat of the trough heating piece (340) to printing materials in the trough (900).

7. A feed system as set forth in claim 6, wherein,

the heating control unit (331) comprises a third switch piece (D3), a first end of the trough heating piece (340) is electrically connected with a power supply, a first end of the third switch piece (D3) is electrically connected with a second end of the trough heating piece (340), a second end of the third switch piece (D3) is grounded, and a control end of the third switch piece (D3) is electrically connected with the main controller (300);

the heating control unit (331) further comprises a third capacitor (C3), a first end of the third capacitor (C3) is electrically connected with the power supply, and a second end of the third capacitor (C3) is electrically connected with a first end of the third switch element (D3);

the fan control unit (332) comprises a fourth switch piece (D4), the first end of the controllable fan (350) is electrically connected with a power supply, the first end of the fourth switch piece (D4) is electrically connected with the second end of the controllable fan (350), the second end of the fourth switch piece (D4) is grounded, and the control end of the fourth switch piece (D4) is electrically connected with the main controller (300);

The fan control unit (332) further comprises a fourth capacitor (C4), a first end of the fourth capacitor (C4) is electrically connected with the power supply, and a second end of the fourth capacitor (C4) is grounded.

8. A feed system as set forth in claim 6, wherein,

the feeding system further comprises a trough temperature measuring module (360), the trough temperature measuring module (360) is electrically connected with the main controller (300), the trough temperature measuring module (360) is arranged opposite to printing materials in the trough (900), the trough temperature measuring module (360) is used for acquiring second temperature information, the main controller (300) is used for controlling the heating equipment to heat according to the second temperature information, and the second temperature information is used for representing the temperature of the printing materials in the trough (900);

9. The feed system of claim 1, further comprising a master controller (300), the master controller (300) being electrically connected to the feed assembly (200) to control the feed assembly (200) to transfer the printing material within the magazine (100) to the trough (900);

One end of the feeding assembly (200) is communicated with the material storage container (100), and the other end of the feeding assembly (200) is communicated with the material groove (900);

wherein the feeding assembly (200) comprises a feeding pipe (210) and a driving piece (220), one end of the feeding pipe (210) is communicated with the storage container (100), and the other end of the feeding assembly (200) is communicated with the trough (900);

the driving piece (220) is arranged on the feeding pipe (210), the driving piece (220) is electrically connected with the main controller (300), and the main controller (300) is used for controlling the driving piece (220) to transmit the printing material from the material storage container (100) to the material groove (900).

10. A photo curing moulding apparatus comprising a feed system according to any of the preceding claims 1-9.