A discharging device of SLA light curing 3D printing equipment

Abstract

This utility model relates to the field of 3D printing equipment technology, specifically to a feeding device for an SLA photopolymerization 3D printing equipment. It includes a printing equipment body, a metal plate mounted on the top of the body, and a feeding mechanism mounted on the back of the body, slidably connected to the upper two sides of the metal plate. Clamping mechanisms are fixedly mounted on the surface of the body, located on the sides of the metal plate away from the feeding mechanism. This utility model facilitates the cutting and feeding of the product from the metal plate through the cooperation of the internal parts of the clamping mechanism. The clamping plates on the outer wall of the connecting seat are pushed to fit against the product surface, facilitating clamping and fixing of the product on both sides. No manual support or fixing of the cut product is required, thus reducing safety risks during the cutting and feeding process. The cutting and feeding operation can be completed through the cooperation of the internal parts of the feeding mechanism.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing equipment technology, specifically to a feeding device for an SLA photopolymerization 3D printing equipment. Background Technology

[0002] Photopolymerization is a process in which a laser of a specific wavelength and intensity is focused onto the surface of a photopolymer material, causing it to solidify sequentially from point to line and from line to surface, completing the drawing of one layer. Then, a lifting platform moves vertically by the height of one layer, and another layer is solidified. In this way, layers are stacked to form a three-dimensional entity. Since its inception, photopolymerization rapid prototyping technology has played a significant role in the field of rapid manufacturing and has become a focus of attention in the engineering community. The precision of photopolymerization prototypes and the performance and cost of the molding materials have always been hot research topics in this field.

[0003] A search revealed an invention patent with publication number CN114986907B, specifically disclosing a feeding device for an SLA photopolymer 3D printing equipment. Belonging to the technical field of SLA photopolymer 3D printing equipment, it includes a square plate. A support column is fixedly connected to the upper wall of the square plate, and a support plate is fixedly connected to the top of the support column. A retaining ring is fixedly connected to the upper wall of the support plate, and a hydraulic cylinder is installed in the retaining ring. An output part is installed on the hydraulic cylinder, and a linkage part is installed at the end of the output part further away from the hydraulic cylinder. An impact-resistant part is installed on the linkage part, and a scraper structure is installed on the impact-resistant part. A waste collection structure is connected to the scraper structure. This invention solves the problem that while existing feeding devices for SLA photopolymer 3D printing equipment can achieve automatic feeding, they cannot automatically separate waste, requiring manual cleaning. Furthermore, waste easily flows out of the device during the transfer of waste and model, also requiring manual cleaning, which is time-consuming, labor-intensive, and increases the workload.

[0004] While the aforementioned patent addresses the issue of reducing worker workload by connecting a waste collection structure to the shovel structure to collect and clean up the waste material during cutting, existing 3D printed products require manual support when cut by the shovel. This is to prevent the product from tilting during cutting and falling off the printing equipment, which could cause it to break. Furthermore, manual support poses certain safety hazards when moving the shovel for cutting.

[0005] Therefore, it is necessary to propose a feeding device for SLA photopolymerization 3D printing equipment to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a feeding device for an SLA photopolymerization 3D printing equipment. Through the cooperation of the internal parts of the clamping mechanism, it facilitates the cutting and feeding of products on metal plates. The clamping plates on the outer wall of the push connecting seat are brought into contact with the product surface, making it easy to clamp and fix the product on both sides. There is no need for manual support and fixation of the product during cutting, thereby reducing the safety impact during the cutting and feeding process. This solves the problem in the prior art that when 3D printed products are cut by a scraper, manual support is required to prevent the product from tilting during the cutting and feeding process and falling off the printing equipment and breaking. Manual support and the movement of the scraper during cutting also pose certain safety hazards.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for an SLA photopolymerization 3D printing equipment, comprising a printing equipment body, a metal plate mounted on the top of the printing equipment body, a feeding mechanism mounted on the back of the printing equipment body and slidably connected to the upper two sides of the metal plate, and a clamping mechanism mounted and fixed on the surface of the printing equipment body and located on the two sides of the metal plate away from the feeding mechanism.

[0008] The clamping mechanism includes multiple telescopic cylinders, which are mounted and fixed on the surface of the main body of the printing device and located on both sides of the metal plate. The output end of each telescopic cylinder is fixed to a connecting seat by bolts. Multiple clamping plates are slidably connected to the end surface of the connecting seat away from the telescopic cylinder. A telescopic rod is slidably connected between the clamping plates and the connecting seat and extends into the interior of the connecting seat. A limit ring is mechanically connected to the end surface of the telescopic rod that extends into the interior of the connecting seat, and a telescopic spring is mechanically connected between the limit ring and the connecting seat.

[0009] Preferably, the feeding mechanism includes a control motor, which is fixed to the back of the printing device body by bolts. The output end of the control motor is rotatably connected to a threaded rod through a coupling. A sliding rod is threadedly slidably sleeved on the outer wall of the threaded rod and extends through to the front of the printing device body, located on both sides above the metal plate. A cutter is fixed to the bottom end of the sliding rod by bolts and slides above the metal plate.

[0010] Preferably, the threads on the surfaces of the plurality of threaded rods are symmetrically distributed, and the interior of the printing device body is provided with a sliding groove that matches the sliding rod. The threaded rod is rotatably connected to the interior of the printing device body through a bearing.

[0011] Preferably, the cutter is a thin-blade cutter, and the bottom surface of the cutter is in contact with the surface of the metal plate. A protective cover is rotatably connected to the top of the main body of the printing device, and the metal plate is made of stainless steel. The metal plate is located below the printing head assembly.

[0012] Preferably, the connecting seat has an internal telescopic groove that matches the telescopic rod, and the diameter of the limiting ring is larger than the diameter of the telescopic rod, and it slides within the connecting seat. The clamping pieces are elliptically distributed on the surface of the connecting seat.

[0013] Preferably, there is a gap between the bottom end of the connecting seat and the surface of the metal plate to facilitate the sliding of the cutter, the clamping piece is made of sponge material, and there is a filling space between multiple clamping pieces.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. By activating the telescopic cylinder, the telescopic cylinder pushes the connecting seat to slide on the top of the metal plate. The moving connecting seat causes the clamping plate to come into contact with the product on the metal plate, making the clamping plate and the product surface come into contact and squeeze each other. This forces the clamping plate to push the telescopic rod to compress the telescopic spring and move it. The telescopic rod moves and drives the clamping plate to move, making the clamping plate come into contact with the product surface. At the same time, the clamping plate is made of sponge material, which makes it easy for the clamping plate to come into contact with the product surface and deform with each other, thus better fitting and clamping the irregular surface of the product. This completes the clamping and fixing of the product without the need for manual support and stability of the product, reducing the safety impact when the product is cut from the metal plate.

[0016] 2. By starting the control motor, the motor drives the threaded rod to rotate. The rotation of the threaded rod drives the sliding rod to slide inside the main body of the printing equipment. The sliding rod drives the cutter fixed at the bottom to move and cut the top of the metal plate and the product connection. There is a gap between the bottom of the connecting seat and the surface of the metal plate to facilitate the sliding of the cutter. When the cutter slides to complete the cutting of the metal plate, it will not collide with the connecting seat, thus completing the product cutting and unloading operation on the metal plate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the main body of the printing device of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the connector of this utility model;

[0021] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Printing equipment body; 101. Metal plate; 2. Feeding mechanism; 201. Control motor; 202. Threaded rod; 203. Sliding rod; 204. Cutting knife; 3. Clamping mechanism; 301. Telescopic cylinder; 302. Connecting seat; 303. Clamping piece; 304. Telescopic rod; 305. Telescopic spring; 306. Limiting ring. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figure 1-4 The unloading device of an SLA photopolymerization 3D printing equipment shown includes a printing equipment body 1, a metal plate 101 installed on the top of the printing equipment body 1, an unloading mechanism 2 installed on the back of the printing equipment body 1 and slidably connected to the upper two sides of the metal plate 101, and a clamping mechanism 3 installed and fixed on the surface of the printing equipment body 1 and located on the two sides of the metal plate 101 away from the unloading mechanism 2.

[0026] The clamping mechanism 3 includes multiple telescopic cylinders 301, which are mounted and fixed on the surface of the main body 1 of the printing equipment and located on both sides of the metal plate 101. The output end of the telescopic cylinder 301 is fixed to the connecting seat 302 by bolts. Multiple clamping pieces 303 are slidably connected to the end surface of the connecting seat 302 away from the telescopic cylinder 301. A telescopic rod 304 is slidably connected between the clamping pieces 303 and the connecting seat 302 and extends into the interior of the connecting seat 302. A limit ring 306 is mechanically connected to the end surface of the telescopic rod 304 that extends into the interior of the connecting seat 302. A telescopic spring 305 is mechanically connected between the limit ring 306 and the connecting seat 302.

[0027] The mutual cooperation between the internal parts of the clamping mechanism 3 facilitates the cutting and blanking of the product on the metal plate 101. The clamping piece 303 on the outer wall of the connecting seat 302 is pushed to fit against the product surface, making it easy to clamp and fix the product on both sides. There is no need for manual support and fixation of the cut product, thereby reducing the safety impact during the cutting and blanking process. The cutting and blanking operation of the product can be completed through the mutual cooperation between the internal parts of the blanking mechanism 2.

[0028] Refer to the instruction manual appendix Figure 1-4The unloading mechanism 2 includes a control motor 201, which is fixed to the back of the printing equipment body 1 by bolts. The output end of the control motor 201 is rotatably connected to a threaded rod 202 through a coupling. The outer wall of the threaded rod 202 is threadedly slidably fitted with a sliding rod 203, which extends through to the front of the printing equipment body 1 and is located on both sides above the metal plate 101. The bottom end of the sliding rod 203 is fixed with a cutter 204 by bolts and slides above the metal plate 101. Through the mutual cooperation between the internal parts of the unloading mechanism 2, the cutting and unloading operation of the product can be completed.

[0029] Refer to the instruction manual appendix Figure 1-4 The threads on the surfaces of multiple threaded rods 202 are symmetrically distributed, and the interior of the printing device body 1 is provided with a sliding groove that matches the sliding rod 203. The threaded rods 202 are rotatably connected to the interior of the printing device body 1 through bearings. The symmetrical distribution of threads on the surfaces of multiple threaded rods 202 and the provision of a sliding groove that matches the sliding rod 203 inside the printing device body 1 facilitate the rotation of the threaded rods 202 to drive the sliding rods 203 on both sides of the printing device body 1 to slide synchronously.

[0030] Refer to the instruction manual appendix Figure 1-4 The cutter 204 is a thin sheet cutter, and the bottom surface of the cutter 204 is in contact with the surface of the metal plate 101. A protective cover is rotatably connected to the top of the main body 1 of the printing device. The metal plate 101 is made of stainless steel and is located below the printing end assembly. Because the cutter 204 is a thin sheet cutter and the bottom surface of the cutter 204 is in contact with the surface of the metal plate 101, the product printed on the metal plate 101 can be effectively separated from the surface of the metal plate 101.

[0031] Refer to the instruction manual appendix Figure 1-4 The connecting seat 302 has a telescopic groove inside that matches the telescopic rod 304, and the diameter of the limiting ring 306 is larger than the diameter of the telescopic rod 304, limiting its sliding within the connecting seat 302. The clamping pieces 303 are elliptically distributed on the surface of the connecting seat 302. The telescopic groove inside the connecting seat 302 matches the telescopic rod 304, and the diameter of the limiting ring 306 is larger than the diameter of the telescopic rod 304, facilitating the movement of the telescopic rod 304 to drive the clamping pieces 303 to slide on the surface of the connecting seat 302.

[0032] Refer to the instruction manual appendix Figure 1-4 There is a gap between the bottom end of the connecting seat 302 and the surface of the metal plate 101 to facilitate the sliding of the cutter 204. The clamping piece 303 is made of sponge material, and there is a filling space between multiple clamping pieces 303. Because the clamping piece 303 is made of sponge material and there is a filling space between multiple clamping pieces 303, it is convenient for the clamping piece 303 to be squeezed and deformed against the product surface when it comes into contact with the product surface, so as to better fit and clamp the product surface.

[0033] The working principle of this practical application is as follows:

[0034] Refer to the instruction manual appendix Figure 1-4 By activating the telescopic cylinder 301, the telescopic cylinder 301 pushes the connecting seat 302 to slide on the top of the metal plate 101. The moving connecting seat 302 causes the clamping piece 303 to adhere to the product on the metal plate 101, so that the clamping piece 303 comes into contact with and is pressed against the product surface. This causes the clamping piece 303 to be forced to push the telescopic rod 304 to compress the telescopic spring 305 and move. The moving telescopic rod 304 then moves the clamping piece 303, causing it to adhere to the product surface. At the same time, since the clamping piece 303 is made of sponge material, it is easy for the clamping piece 303 to deform against the product surface when it comes into contact with the product surface, thus better adhering to and clamping the irregular surface of the product. This completes the clamping and fixing of the product without the need for manual support and stability, reducing the safety impact when the product is cut from the metal plate 101.

[0035] Refer to the instruction manual appendix Figure 1-4 By starting the control motor 201, the control motor 201 drives the threaded rod 202 to rotate. The rotation of the threaded rod 202 drives the sliding rod 203 to slide inside the main body 1 of the printing equipment through the thread. The sliding rod 203 drives the cutter 204 fixed at the bottom to move, cutting the top of the metal plate 101 and the product connection. There is a gap between the bottom of the connecting seat 302 and the surface of the metal plate 101 to facilitate the sliding of the cutter 204. When the cutter 204 slides to complete the cutting on the metal plate 101, it will not collide with the connecting seat 302, thus completing the product cutting and unloading operation on the metal plate 101.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A feeding device for an SLA photopolymerization 3D printing equipment, characterized in that: The device includes a printing device body (1), a metal plate (101) is mounted on the top of the printing device body (1), a feeding mechanism (2) is mounted on the back of the printing device body (1) and is slidably connected to the upper two sides of the metal plate (101), and a clamping mechanism (3) is mounted and fixed on the surface of the printing device body (1) and is located on the two sides of the metal plate (101) away from the feeding mechanism (2). The clamping mechanism (3) includes a telescopic cylinder (301). There are multiple telescopic cylinders (301). The multiple telescopic cylinders (301) are installed and fixed on the surface of the main body (1) of the printing equipment and located on both sides of the metal plate (101). The output end of the telescopic cylinder (301) is fixed with a connecting seat (302) by bolts. Multiple clamping pieces (303) are slidably connected to the end surface of the connecting seat (302) away from the telescopic cylinder (301). A telescopic rod (304) is slidably connected between the clamping piece (303) and the connecting seat (302) and extends into the interior of the connecting seat (302). A limit ring (306) is mechanically connected to the end surface of the telescopic rod (304) that extends into the interior of the connecting seat (302). A telescopic spring (305) is mechanically connected between the limit ring (306) and the connecting seat (302).

2. The feeding device for an SLA photopolymerization 3D printing equipment according to claim 1, characterized in that: The feeding mechanism (2) includes a control motor (201), which is fixed to the back of the printing equipment body (1) by bolts. The output end of the control motor (201) is rotatably connected to a threaded rod (202) through a coupling. The outer wall of the threaded rod (202) is connected to a sliding rod (203) through a threaded sliding sleeve, which extends to the front of the printing equipment body (1) and is located on both sides above the metal plate (101). The bottom end of the sliding rod (203) is fixed to a cutter (204) by bolts and slides above the metal plate (101).

3. The feeding device for an SLA photopolymerization 3D printing equipment according to claim 2, characterized in that: The threads on the surfaces of the multiple threaded rods (202) are symmetrically distributed, and the printing device body (1) has a sliding groove inside that matches the sliding rod (203). The threaded rods (202) are rotatably connected to the inside of the printing device body (1) through bearings.

4. The feeding device for an SLA photopolymerization 3D printing equipment according to claim 2, characterized in that: The cutter (204) is a thin sheet cutter, and the bottom surface of the cutter (204) is in contact with the surface of the metal plate (101). The top of the main body (1) of the printing device is rotatably connected to a protective cover, and the metal plate (101) is made of stainless steel. The metal plate (101) is located below the printing end assembly.

5. The feeding device for an SLA photopolymerization 3D printing equipment according to claim 1, characterized in that: The connecting seat (302) has an internal telescopic groove that matches the telescopic rod (304), and the diameter of the limiting ring (306) is larger than the diameter of the telescopic rod (304), and it slides within the connecting seat (302). The clamping pieces (303) are elliptically distributed on the surface of the connecting seat (302).

6. The feeding device for an SLA photopolymerization 3D printing equipment according to claim 2, characterized in that: There is a gap between the bottom end of the connecting seat (302) and the surface of the metal plate (101) to facilitate the sliding of the cutter (204). The clamping piece (303) is made of sponge material, and there is a filling space between multiple clamping pieces (303).

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