Small photocuring forming equipment with liquid level height adjusting function

Abstract

The utility model relates to small-sized photocuring forming equipment with a liquid level height adjusting function. The small-sized photocuring forming equipment comprises a rack, a forming cylinder and a control system, wherein the forming cylinder and the control system are arranged below the rack; a liquid level control module is mounted above the forming cylinder and comprises a liquid level sensor, a driving device and a liquid pressing block; the liquid pressing block is arranged above the liquid level of the forming cylinder, and the driving device is fixedly connected to the rack and connected to the liquid pressing block. The liquid level sensor is fixedly connected to the rack and used for monitoring the liquid level height in real time and feeding back information to the control system. The control system is connected to the driving device and used for controlling the liquid pressing block to move up and down according to feedback information of the liquid level sensor so as to adjust the liquid level. The liquid level height can be accurately controlled in the printing process, it is ensured that each layer of liquid level is uniform and stable, negative effects of liquid level fluctuation on the printing quality are avoided, printing defects caused by inaccurate liquid level control in traditional equipment are effectively avoided, and the precision of the photocuring process and the printing quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to additive manufacturing technical field, concretely is a small -size light -cured forming equipment with the function of adjusting liquid level height. BACKGROUND

[0002] The light -cured line forming equipment is widely used in additive manufacturing technology, especially has important role in rapid prototyping and small -batch production. However, the existing light -cured line forming equipment generally has the problems such as large volume, low modularization, and complicated material replacement, which limits its application in miniaturization, integration and high efficiency.

[0003] The light -cured line forming equipment of prior art moves the printing platform to the liquid level of the forming cylinder first when working, then utilizes the line forming module to carry out light -curing to the liquid level on the printing platform. When completing the light -curing of a layer of liquid level, the printing platform drops a certain distance and repeats the above action until completing all printing.

[0004] It has the following technical problems:

[0005] The liquid level height on the printing platform cannot be adjusted, and it is difficult to ensure that the liquid level always remains at an appropriate height during printing. At the same time, the fluctuation of the liquid level will also have a negative impact on the printing quality, resulting in poor printing effect. INVENTION CONTENTS

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a small light -cured forming equipment with the function of adjusting the liquid level height, which can adjust the liquid level height on the printing platform during printing, avoid the negative impact of liquid level fluctuation on printing quality, and improve the printing effect.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A small light -cured forming equipment with the function of adjusting the liquid level height, comprising a rack, a forming cylinder arranged below the rack and a control system;

[0009] A liquid level control module is installed above the forming cylinder, which comprises a liquid level sensor, a driving device and a liquid pressing block;

[0010] The liquid pressing block is arranged above the liquid level of the forming cylinder, and the driving device is fixedly connected to the rack and connected to the liquid pressing block;

[0011] The liquid level sensor is fixedly connected to the rack, which is used for real -time monitoring of the liquid level height and feeding back information to the control system;

[0012] The control system is connected to the driving device, which is used for controlling the up and down movement of the liquid pressing block to adjust the liquid level height according to the feedback information of the liquid level sensor.

[0013] Further, the driving device comprises a stepping motor, a nut seat and a screw rod, the screw rod is vertically arranged in the nut seat and is threadedly connected with the nut seat, the stepping motor is fixedly connected with the frame and is connected with the screw rod, and the stepping motor is used for driving the screw rod to rotate and then driving the nut seat to move up and down, and the nut seat is fixedly connected with the liquid pressing block.

[0014] Further, the screw rod is provided with a guide device on one side, the guide device is parallel to the screw rod and is used for guiding the up and down movement of the nut seat.

[0015] Further, the guide device comprises an optical shaft and a bearing seat, the bearing seat is fixedly connected with the frame, the optical shaft is parallel to the screw rod and is vertically arranged in the bearing seat, and the bearing seat is connected with the nut seat.

[0016] Further, the liquid pressing block is provided with a liquid pressing block upper cover, and the nut seat and the bearing seat are arranged in the liquid pressing block upper cover respectively.

[0017] Further, the driving device further comprises a shaft coupling, and the stepping motor is connected with the screw rod through the shaft coupling.

[0018] Further, the frame is provided with a mounting plate, and the stepping motor is mounted on the mounting plate.

[0019] Further, the frame is provided with a liquid level sensor support, and the liquid level sensor is fixedly arranged on the liquid level sensor support.

[0020] Further, a replaceable cylinder is arranged below the frame, and the replaceable cylinder comprises a forming cylinder, a stud, a foot cup and a universal wheel, the forming cylinder is fixedly connected with a fixing plate on one side, the universal wheel is arranged on one side of the stud and is fixedly connected with the bottom of the fixing plate, the stud is vertically arranged in the fixing plate from bottom to top, the foot cup is arranged between the head of the stud and the fixing plate, and the foot cup is threadedly connected with the stud and is used for lifting the forming cylinder to a printing plane or lowering the forming cylinder so that the universal wheel abuts against the bottom of the frame by rotating the foot cup.

[0021] Further, the forming cylinder is provided with a pull ring on one side.

[0022] Overall, the device has the following advantages:

[0023] The liquid level sensor can monitor the liquid surface height in real time and feed back information to the control system, the liquid pressing block is controlled to move up and down according to the feedback information of the liquid level sensor, so that the liquid surface height can be accurately controlled in the printing process, the liquid surface of each layer is uniform and stable, the negative influence of liquid surface fluctuation on the printing quality is avoided, the printing defects caused by inaccurate liquid level control in the traditional equipment are effectively avoided, and the precision of the photocuring process and the printing quality are improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic view of the device of the utility model;

[0025] Figure 2 is a structural schematic diagram of the liquid level control module;

[0026] Figure 3 is a structural schematic diagram of the replaceable cylinder;

[0027] In the figure:

[0028] 1-frame;

[0029] 2-scraper module;

[0030] 3-liquid level control module; 301-step motor; 302-mounting plate; 303-liquid level sensor; 304-liquid level sensor support; 305-nut seat; 306-bearing seat; 307-optical axis; 308-screw rod; 309-coupling; 310-liquid pressing block; 311-liquid pressing block upper cover;

[0031] 4-optical engine module;

[0032] 5-printing platform lifting module;

[0033] 6-replaceable cylinder; 601-molding cylinder; 602-foot cup; 603-pull ring; 604-castor. DETAILED DESCRIPTION

[0034] The utility model will be explained in further detail as follows.

[0035] As Figure 1 shown, a small-sized photocuring molding equipment with the function of adjusting liquid level height comprises a frame 1, a molding cylinder 601 arranged below the frame 1, and a control system.

[0036] A liquid level control module 3 is installed above the molding cylinder 601, and the liquid level control module 3 comprises a liquid level sensor 303, a driving device, and a liquid pressing block 310.

[0037] The liquid pressing block 310 is arranged above the liquid level of the molding cylinder 601, the driving device is fixedly connected to the frame 1 and connected to the liquid pressing block 310.

[0038] The liquid level sensor 303 is fixedly connected to the frame 1, used for monitoring the liquid level height in real time and feeding back information to the control system.

[0039] The control system is connected to the driving device, used for controlling the up-and-down movement of the liquid pressing block 310 to adjust the liquid level height according to the feedback information of the liquid level sensor 303.

[0040] The utility model discloses utilize liquid level sensor 303 can real -time monitoring liquid level and give the information feedback to control system, according to the feedback information of liquid level sensor 303 control press liquid block 310 up and down movement, thereby can accurate control liquid level in the printing process, ensure that each layer liquid level is even and stable, avoid the negative influence that liquid level fluctuation produces to the printing quality, effectively avoided the printing defect that traditional equipment liquid level control is not accurate leads to, improved the precision and printing quality of photocuring process.

[0041] Specifically, the utility model discloses rack 1, doctor blade module 2, liquid level control module 3, optical engine module 4, printing platform lifting module 5 and replaceable cylinder 6.

[0042] Rack 1 as the basic support structure of equipment provides stable platform, makes various modules can effectively cooperate, ensures the stability and reliability of equipment.

[0043] Doctor blade module 2 is installed longitudinally on rack 1 platform, can be accurate along X -axis direction removal to scrape liquid level on rack 1 platform, thereby realizes even laying and flatness to liquid material of layer. The main function of doctor blade module 2 is to lay each layer liquid level flat, ensures that liquid level is smooth even and has no bubble, thereby improves the printing quality of each layer.

[0044] Liquid level control module 3 side erect installation is installed on one side of rack 1 platform, controls liquid level and ensures that the liquid level of each layer material always keeps at the height of prearranged.

[0045] As Figure 2 Shown, liquid level control module 3 includes step motor 301, mounting plate 302, liquid level sensor 303, liquid level sensor support 304, nut seat 305, bearing seat 306, optical axis 307, screw rod 308, shaft coupling 309, press liquid block 310 and press liquid block upper cover 311. The main function of liquid level control module 3 is to accurately adjust liquid level height by controlling the movement of press liquid block 310, ensure that the liquid level always keeps at the appropriate height during the printing process. Step motor 301 is installed on mounting plate 302, liquid level sensor 303 is fixed on liquid level sensor support 304, real -time monitoring liquid level, and information is fed back to the control system. According to the feedback of sensor, step motor 301 drives screw rod 308 through shaft coupling 309, and then drives press liquid block 310 to move up and down along optical axis 307, so as to adjust the liquid level height. Press liquid block upper cover 311 is provided with nut seat 305 and bearing seat 306, screw rod 308 is threadedly connected to nut seat 305, optical axis 307 is provided with bearing seat 306, nut seat 305 and bearing seat 306 provide stable support, ensure the accurate movement of press liquid block 310, avoid the negative influence that liquid level fluctuation produces to the printing quality.

[0046] The optical engine module 4 is installed transversely on the platform of the rack 1, and the line forming light machine performs light curing on the liquid surface on the printing platform, layer by layer curing the material. The line forming light machine is connected with the optical screw slide assembly, and can perform accurate transverse movement according to the preset trajectory, realizing the light curing of each layer of liquid surface. The transverse movement of the line forming light machine cooperates with the layer-by-layer curing of the liquid surface on the printing platform, ensuring the printing precision and stability.

[0047] The scraper module 2 and the optical engine module 4 move along the longitudinal and transverse directions of the rack 1 respectively, so that the whole device structure is more compact, significantly reducing the volume of the equipment, occupying less space, and better adapting to the miniaturized production environment, improving the space utilization of the equipment, and realizing efficient operation in a smaller working space, meeting the needs of modern manufacturing industry for compact equipment.

[0048] The printing platform lifting module 5 is installed on the side of the platform of the rack 1, and is used to control the up-down movement of the printing platform on the Z axis, ensuring the accurate distance between the printing platform and the liquid surface, so as to ensure the accurate curing of each layer of material and obtain good printing quality.

[0049] The replaceable cylinder 6 is located below the printing platform of the rack 1, which can realize the quick replacement of the forming cylinder 601, greatly reducing the downtime of the equipment and improving the production efficiency of the equipment.

[0050] As Figure 3As shown, the replaceable cylinder 6 includes a shaped cylinder 601, a stud, a foot cup 602, a pull ring 603 and a universal wheel 604. The shaped cylinder 601 is fixedly connected with a fixed plate on the side, the universal wheel 604 is arranged on the side of the stud and is fixedly connected with the bottom of the fixed plate, the stud is arranged in the fixed plate from bottom to top, the foot cup 602 is arranged between the head of the stud and the fixed plate, and the foot cup 602 is threadedly connected with the stud. The main purpose of the module design is to realize the quick replacement of the shaped cylinder 601, reduce the downtime of the equipment, and improve the production efficiency. The shaped cylinder 601 is the core component of the equipment and is used for storing the material required for printing. In the working process, the shaped cylinder 601 carries liquid or powder material and is shaped through the photocuring process on the printing platform. The foot cup 602 is installed at the bottom of the shaped cylinder 601, the height position of the shaped cylinder 601 can be adjusted by rotating the foot cup 602 on the stud, so that it can be more convenient to operate when being replaced. The pull ring 603 is installed on both sides of the shaped cylinder 601 and is used for pulling during operation, so as to quickly take out the used shaped cylinder 601 and replace it with a new shaped cylinder 601. During use, the operator rotates the foot cup 602, so that the universal wheel 604 contacts the bottom of the rack 1, at this time the shaped cylinder 601 can be pulled out through the pull ring 603 and replaced. The universal wheel 604 is installed at the bottom of the shaped cylinder 601, through the rotation of the universal wheel 604 and the cooperation of the foot cup 602, the smooth movement of the shaped cylinder 601 can be realized, and the replacement process of the shaped cylinder 601 is simplified. The operator only needs to simply rotate the foot cup 602, so as to easily complete the lifting or lowering of the shaped cylinder 601, and then drags out the shaped cylinder 601 through the pull ring 603 for replacement.

[0051] The above embodiment is a preferred embodiment of the present application, but the embodiment of the present application is not limited by the above embodiment, and any change, modification, replacement, combination, simplification made without departing from the spirit and principle of the present application should be an equivalent replacement method, which is included in the protection scope of the present application.

Claims

1. A small-scale photopolymerization molding device with adjustable liquid level, characterized in that: The machine frame, the forming cylinder arranged below the machine frame, and the control system are included. The liquid level control module is arranged above the forming cylinder, and the liquid level control module includes a liquid level sensor, a driving device, and a liquid pressing block. The liquid pressing block is arranged above the liquid surface of the forming cylinder, and the driving device is fixedly connected to the machine frame and connected to the liquid pressing block. The liquid level sensor is fixedly connected to the machine frame, and is used for monitoring the liquid surface height in real time and feeding back information to the control system. The control system is connected to the driving device, and is used for controlling the up-down movement of the liquid pressing block to adjust the liquid surface height according to the feedback information of the liquid level sensor.

2. The small-scale photocuring molding apparatus having a liquid level adjusting function according to claim 1, characterized by: The driving device includes a stepping motor, a nut seat, and a lead screw, the lead screw is vertically arranged in the nut seat and is threadedly connected to the nut seat, the stepping motor is fixedly connected to the machine frame and connected to the lead screw, and is used for driving the lead screw to rotate and in turn driving the nut seat to move up and down, and the nut seat is fixedly connected to the liquid pressing block.

3. The small-scale optical fabrication apparatus with a function of adjusting liquid level according to claim 2, wherein: One side of the lead screw is provided with a guide device parallel to the lead screw, and the guide device is used for guiding the up-down movement of the nut seat.

4. The small-scale optical fabrication apparatus with a liquid level adjusting function according to claim 3, wherein: The guide device includes an optical shaft and a bearing seat, the bearing seat is fixedly connected to the machine frame, the optical shaft is parallel to the lead screw and vertically arranged in the bearing seat, and the bearing seat is connected to the nut seat.

5. The small-scale optical fabrication apparatus with a function of adjusting liquid level according to claim 4, wherein: The liquid pressing block is provided with a liquid pressing block upper cover, and the nut seat and the bearing seat are arranged in the liquid pressing block upper cover.

6. The small-scale optical fabrication apparatus with a function of adjusting liquid level according to claim 2, wherein: The driving device further includes a shaft coupling, and the stepping motor is connected to the lead screw through the shaft coupling.

7. The small-scale optical fabrication apparatus with a function of adjusting liquid level according to claim 2, wherein: The machine frame is provided with a mounting plate, and the stepping motor is mounted on the mounting plate.

8. The small-scale optical fabrication apparatus with a function of adjusting liquid level according to claim 2, wherein: The machine frame is provided with a liquid level sensor support, and the liquid level sensor is fixedly arranged in the liquid level sensor support.

9. The small-scale optical fabrication apparatus having a liquid level adjusting function according to claim 1, wherein: The machine frame is provided below with a replaceable cylinder body, and the replaceable cylinder body includes the forming cylinder, a stud, a foot cup, and universal wheels, the forming cylinder is fixedly connected with a fixing plate at a side portion, the universal wheels are arranged at one side of the stud and fixedly connected to the bottom of the fixing plate, the stud is vertically arranged in the fixing plate from bottom to top, the foot cup is arranged between the head of the stud and the fixing plate, and the foot cup is threadedly connected to the stud, and is used for lifting the forming cylinder to a printing plane or lowering the forming cylinder to make the universal wheels abut against the bottom of the machine frame by rotating the foot cup.

10. The small-scale optical fabrication apparatus with a liquid level adjusting function according to claim 1, wherein: The forming cylinder is provided with a pull ring at a side portion.

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