Ejector pin type demolding mechanism

Abstract

The utility model discloses an ejector pin type demoulding mechanism, which relates to the field of 3D (three-dimensional) printing equipment and comprises a base, a plurality of ejector pins and a plurality of ejector pins, the bearing seat is fixedly connected with the base, the bearing seat is fixedly connected with a forming plate, the bearing seat is further connected with an ejector plate in a sliding mode, the forming plate is located on the side, away from the base, of the ejector plate, and the forming plate is used for bearing a model; the driving assembly comprises a power piece and a pushing piece, the pushing piece comprises a connecting end and a pressing end, the pushing piece is rotationally connected with the base, the connecting position of the pushing piece and the base is arranged between the connecting end and the pressing end, and the power piece is arranged on the base and acts in the linear direction to push the pushing piece to rotate; and the pressing end moves towards the ejector plate, so that the ejector plate is driven to move towards the forming plate to push the model to leave the forming plate. The ejector pin type demolding mechanism provided by the technical scheme of the utility model is simple in structure and convenient to assemble.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing equipment technology, and in particular to an ejector pin type demolding mechanism. Background Technology

[0002] Existing photopolymer 3D printing equipment mainly involves inserting the forming platform of the photopolymer printer into the liquid photosensitive resin inside the printer's material tank, and then irradiating the liquid photosensitive resin inside the material tank with an ultraviolet light source to achieve photopolymerization between the release film and the forming platform, ultimately forming a molded model on the forming platform. After the model is formed, it is separated by a demolding mechanism.

[0003] Currently, demolding mechanisms require complex transmission mechanisms to transmit power, thereby detaching the model from the molding platform. This results in a large overall size of the equipment and low assembly efficiency. Utility Model Content

[0004] The main purpose of this invention is to provide an ejector pin type demolding mechanism, which aims to solve the technical problems of complex structure and low assembly efficiency of demolding mechanisms in current printing equipment.

[0005] To achieve the above objectives, the present invention proposes an ejector pin type demolding mechanism, comprising:

[0006] Base;

[0007] A receiving seat is fixedly connected to the base. A molding plate is fixedly connected to the receiving seat, and an ejector plate is slidably connected to the receiving seat. The molding plate is located on the side of the ejector plate opposite to the base, and the molding plate is used to support the model.

[0008] A driving component includes a power component and a pushing component. The pushing component includes a connecting end and a pressing end. The pushing component is rotatably connected to the base, and the connection is located between the connecting end and the pressing end. The power component is located on the base and moves in a straight line to push the pushing component to rotate, so that the pressing end moves toward the ejector plate, thereby driving the ejector plate to move toward the molding plate to push the model away from the molding plate.

[0009] In one embodiment, the connecting end has a guide hole, and the power component is connected to a drive shaft, which is movably disposed within the guide hole.

[0010] In one embodiment, the pusher is provided with a first clearance position, and the base includes a connecting grille, which corresponds to and cooperates with the first clearance position.

[0011] In one embodiment, the power component is connected to a first clamping block and a second clamping block, the first clamping block and the second clamping block being connected and clamping the drive shaft.

[0012] In one embodiment, the pusher is further provided with a second clearance position, and the drive shaft extends from both sides of the first clamping block and the second clamping block, the first clamping block and the second clamping block being movably accommodated in the second clearance position.

[0013] In one embodiment, the ejector pin type demolding mechanism further includes a reset component, which is connected to the receiving seat and the ejector plate respectively, and is used to drive the ejector plate to reset.

[0014] In one embodiment, the reset assembly includes an elastic element and a limiting shaft. The receiving seat has a connecting hole, one end of the limiting shaft passes through the connecting hole and is connected to the ejector plate. The elastic element connects the receiving seat and the limiting shaft respectively and drives the limiting shaft to slide.

[0015] In one embodiment, the ejector plate is further connected to a guide shaft, the receiving seat has a guide hole, and the guide shaft is slidably connected to the guide hole.

[0016] In one embodiment, the ejector plate includes a mounting plate with a plurality of ejector holes, each ejector hole containing an ejector pin. The molding plate has a plurality of demolding holes corresponding to the ejector pins. The mounting plate moves toward the molding plate so that the ejector pins extend into the demolding holes.

[0017] In one embodiment, the ejector plate further includes a fixing plate and a locking member. The fixing plate has a locking hole, and the locking member passes through the locking hole and locks the mounting plate to clamp the ejector pin.

[0018] This invention employs a method where a molding plate is fixedly mounted on a receiving seat and an ejector plate is slidably mounted. A driving assembly is mounted on a base. Specifically, the connecting end of the pushing component is connected to a power component. The power component moves linearly, driving the pushing component to rotate. This rotation causes the pressing end to press the ejector plate towards the molding plate, thereby pushing the model away from the molding plate. Compared to existing technologies, this invention uses a power component connected to the pushing assembly, which rotates the pushing component via linear motion, thus causing the ejector plate to push the model away. This eliminates the need for a complex transmission structure, and the driving assembly of this invention is simple in structure and easy to assemble. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of an embodiment of the ejector pin demolding mechanism provided by this utility model from an angle;

[0021] Figure 2 This is a structural schematic diagram of another angle of an embodiment of the ejector pin type demolding mechanism provided by this utility model;

[0022] Figure 3 A schematic diagram of the drive assembly of an embodiment of the ejector pin type demolding mechanism provided by this utility model;

[0023] Figure 4 This is a schematic diagram of the molding plate and ejector plate in an embodiment of the ejector-type demolding mechanism provided by this utility model.

[0024] Explanation of icon numbers:

[0025] 100. Base; 110. Connecting grille;

[0026] 200, Receiving seat; 210, Molding plate; 211, Demolding hole; 220, Ejector plate; 221, Mounting plate; 222, Fixing plate; 223, Ejector hole; 224, Locking hole; 230, Guide shaft; 240, Ejector pin; 250, Guide hole;

[0027] 300, Drive assembly; 310, Power component; 320, Pushing component; 321, Connecting end; 322, Pressing end; 323, First clearance position; 324, Second clearance position; 330, Drive shaft; 340, First clamping block; 350, Second clamping block;

[0028] 400. Reset assembly; 410. Elastic element; 420. Limiting shaft.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] In the current technology, the demolding mechanism needs to transmit power through a complex transmission mechanism to remove the model from the molding platform. The overall size of the equipment is large and the assembly efficiency is low.

[0034] This utility model proposes an ejector pin type demolding mechanism.

[0035] Please see Figures 1 to 4 In one embodiment of this utility model, the ejector-type demolding mechanism includes: a base 100, a receiving seat 200, and a driving assembly 300; wherein, the receiving seat 200 is fixedly connected to the base 100, a molding plate 210 is fixedly connected to the receiving seat 200, and an ejector plate 220 is slidably connected to the receiving seat 200, the molding plate 210 is located on the side of the ejector plate 220 away from the base 100, and the molding plate 210 is used to support the mold; the driving assembly 300 includes a power component. 310 and pusher 320, pusher 320 includes connecting end 321 and pressing end 322, pusher 320 is rotatably connected to base 100 and the connection is located between connecting end 321 and pressing end 322, power member 310 is located on base 100 and moves in a straight line to push pusher 320 to rotate, so that pressing end 322 moves toward ejector plate 220, thereby driving ejector plate 220 to move toward molding plate 210 to push the model away from molding plate 210.

[0036] In specific implementation, the base 100 is also used to connect other external devices to achieve model forming on the molding plate 210. The receiving seat 200 is fixedly connected to the base 100, such as by welding or bolt locking, which is not limited in this embodiment. In this embodiment, receiving seats 200 are connected to both sides of the base 100, and the two receiving seats 200 are respectively connected to the two ends of the molding plate 210. The two ends of the ejector plate 220 are slidably connected to the receiving seats 200, and the ejector plate 220 is located above the molding plate 210. The driving component 300 is located above the ejector plate 220. Specifically, the power component 310 moves linearly in the horizontal direction, pushing the pusher 320 to rotate, thereby causing the pressing end 322 of the pusher 320 to approach and press the ejector plate 220 towards the molding plate 210, thus pushing the model on the molding plate 210 away. Understandably, the rotatable connection between the pusher 320 and the base 100 is located between the connecting end 321 and the pressing end 322. The edge of the pressing end 322 is rounded to avoid damaging the molding plate 210. In specific implementations, the power component 310 can be a cylinder, a hydraulic cylinder, or a linear motor, etc.

[0037] This utility model's technical solution employs a molding plate 210 fixedly mounted on a receiving base 200 and a sliding ejector plate 220, with a driving assembly 300 mounted on a base 100. Specifically, the connecting end 321 of the pushing member 320 is connected to the power member 310. The power member 310 moves linearly, driving the pushing member 320 to rotate. The rotation of the pushing member 320 causes the pressing end 322 to press the ejector plate 220 towards the molding plate 210, thereby pushing the model away from the molding plate 210. Compared with the prior art, the power member 310 in this utility model is connected to the pushing assembly, and the linear motion causes the pushing member 320 to rotate, thereby causing the ejector plate 220 to push the model away. This eliminates the need for a complex transmission structure, and the driving assembly 300 of this utility model has a simple structure and is easy to assemble.

[0038] refer to Figure 2 and Figure 3 As shown, in one embodiment, the connecting end 321 has a guide hole 250, and the power component 310 is connected to a drive shaft 330, which is movably disposed within the guide hole 250.

[0039] Specifically, the connecting end 321 of the pusher 320 has a guide hole 250, which is an elongated hole extending toward the pressing end 322. The drive shaft 330 is arranged laterally and rotatably connected within the guide hole 250. During the pushing process of the power member 310, the drive shaft 330 also moves along the guide hole 250, thereby driving the pusher 320 to rotate. The rotatable connection between the pusher 320 and the base 100 is located between the connecting end 321 and the pressing end 322. During the rotation of the pusher 320, the connecting end 321 moves upward, so the pressing end 322 moves downward and presses the ejector plate 220, pushing the ejector plate 220 toward the molding plate 210 and pushing the model away from the molding plate 210.

[0040] In one embodiment, the pusher 320 is provided with a first clearance position 323, and the base 100 includes a connecting grille 110, which corresponds to and cooperates with the first clearance position 323. In a specific implementation, the base 100 has a support plate, the power member 310 is located on the support plate, the connecting grille 110 is formed on the support plate, the pusher 320 has two parallel first clearance positions 323, the corresponding connecting grille 110 of the base 100 is movably accommodated in the first clearance position 323, the pusher 320 is hinged to the connecting grille 110, and the hinge shaft passes through the pusher 320 and is connected to the connecting grille 110.

[0041] In one embodiment, the power component 310 is connected to a first clamping block 340 and a second clamping block 350, which are connected and clamp the drive shaft 330. The first clamping block 340 is fixedly connected to the power component 310, and a groove for accommodating the drive shaft 330 is provided between the first clamping block 340 and the second clamping block 350. The second clamping block 350 corresponds to the first clamping block 340 and is locked with screws, clamping the drive shaft 330 between the two, thereby realizing the installation and connection of the drive shaft 330 to the power component 310.

[0042] Furthermore, the pusher 320 is also provided with a second clearance position 324. The drive shaft 330 extends to both sides of the first clamping block 340 and the second clamping block 350, and the first clamping block 340 and the second clamping block 350 are movably accommodated in the second clearance position 324. In a specific implementation, the first clamping block 340 and the second clamping block 350 clamp and connect the drive shaft 330 near its middle part, so that the first clamping block 340 and the second clamping block 350 extend from both ends of the drive shaft 330, and the extended parts connect to the pusher 320. The second clearance position 324 is opened at the middle position of the pusher 320 and extends from the edge of the pusher 320 to accommodate the first clamping block 340 and the second clamping block 350.

[0043] In one embodiment, the ejector-type demolding mechanism further includes a reset assembly 400, which is connected to the receiving seat 200 and the ejector plate 220, and is used to drive the ejector plate 220 to reset. After the pusher 320 resets, the ejector plate 220 is reset under the action of the reset assembly 400 to prepare for the next action. The reset assembly 400 can be an elastic element 410, or a mechanism for driving the ejector plate 220 to reset, etc.

[0044] In the specific implementation process, the reset assembly 400 includes an elastic element 410 and a limiting shaft 420. The receiving seat 200 has a connecting hole. One end of the limiting shaft 420 passes through the connecting hole and is connected to the ejector plate 220. The elastic element 410 connects the receiving seat 200 and the limiting shaft 420 respectively and drives the limiting shaft 420 to slide.

[0045] Specifically, the receiving seat 200 has a connecting hole, and the portion of the limiting shaft 420 above the connecting hole is fitted with an elastic element 410. A stop is provided at the end of the limiting shaft 420, and the elastic element 410 is located between the stop and the receiving seat 200. The elastic element 410 employs a spring or similar structure. One end of the limiting shaft 420 below the connecting hole is connected to a ejector plate 220. The ejector plate 220 moves downwards, compressing the elastic element 410. The elastic element 410, under its own elastic force, drives the ejector plate 220 to its original position.

[0046] In one embodiment, the ejector plate 220 is also connected to a guide shaft 230, and the receiving seat 200 has a guide hole 250. The guide shaft 230 is slidably connected to the guide hole 250. Specifically, the ejector plate 220 is fixedly connected to the guide shaft 230, and a linear bearing is provided in the guide hole 250. The guide shaft 230 is slidably connected to the linear bearing, thereby guiding the movement of the ejector plate 220.

[0047] refer to Figure 4 As shown, in one embodiment, the ejector plate 220 includes a mounting plate 221, which has a plurality of ejector holes 223, and each ejector hole 223 is provided with an ejector pin 240. The molding plate 210 has a plurality of demolding holes 211, which correspond to the ejector pins 240. The mounting plate 221 moves toward the molding plate 210 so that the ejector pins 240 extend into the demolding holes 211.

[0048] In the specific implementation process, one end of the ejector pin 240 is fixed in the ejector pin hole 223, and the other end extends to the bottom of the mounting plate 221 and is used to insert into the corresponding demolding hole 211 to push the mold on the molding plate 210 away. The ejector pin 240 can be fixed in the ejector pin hole 223 by means of screwing or welding, and several ejector pins 240 are evenly distributed on the mounting plate 221 (the attached figure only shows one ejector pin 240).

[0049] Furthermore, the ejector plate 220 also includes a fixing plate 222 and a locking member. The fixing plate 222 has a locking hole 224, and the locking member passes through the locking hole 224 and locks the connecting mounting plate 221 to clamp the ejector pin 240.

[0050] The ejector pin hole 223 is T-shaped, and one end of the ejector pin 240 is limited in the ejector pin hole 223. The fixing plate 222 is attached to the mounting plate 221 and locked by the locking member, thereby realizing the limiting and fixing of the ejector pin 240. In this way, the ejector pin 240 can wobble slightly to a certain extent, which facilitates the movement of several ejector pins 240 in the demolding hole 211.

[0051] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the inventive concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A pin-type demolding mechanism, characterized in that, include: Base; A receiving seat is fixedly connected to the base. A molding plate is fixedly connected to the receiving seat, and an ejector plate is slidably connected to the receiving seat. The molding plate is located on the side of the ejector plate opposite to the base, and the molding plate is used to support the model. A driving component includes a power component and a pushing component. The pushing component includes a connecting end and a pressing end. The pushing component is rotatably connected to the base, and the connection is located between the connecting end and the pressing end. The power component is located on the base and moves in a straight line to push the pushing component to rotate, so that the pressing end moves toward the ejector plate, thereby driving the ejector plate to move toward the molding plate to push the model away from the molding plate.

2. The ejector pin type demolding mechanism as described in claim 1, characterized in that, The connecting end has a guide hole, and the power component is connected to a drive shaft, which is movably disposed within the guide hole.

3. The ejector pin type demolding mechanism as described in claim 2, characterized in that, The pusher is provided with a first clearance position, and the base includes a connecting grille, which corresponds to and cooperates with the first clearance position.

4. The ejector pin type demolding mechanism as described in claim 2, characterized in that, The power component is connected to a first clamping block and a second clamping block, which are connected to and clamp the drive shaft.

5. The ejector pin type demolding mechanism as described in claim 4, characterized in that, The pusher also has a second clearance position, and the drive shaft extends out from both sides of the first clamping block and the second clamping block, and the first clamping block and the second clamping block are movably accommodated in the second clearance position.

6. The ejector pin type demolding mechanism as described in claim 1, characterized in that, The ejector-type demolding mechanism also includes a reset assembly, which is connected to the receiving seat and the ejector plate respectively, and is used to drive the ejector plate to reset.

7. The ejector pin type demolding mechanism as described in claim 6, characterized in that, The reset assembly includes an elastic element and a limiting shaft. The receiving seat has a connecting hole. One end of the limiting shaft passes through the connecting hole and is connected to the ejector plate. The elastic element connects the receiving seat and the limiting shaft respectively and drives the limiting shaft to slide.

8. The ejector pin type demolding mechanism as described in claim 6, characterized in that, The ejector plate is also connected to a guide shaft, and the receiving seat has a guide hole, with the guide shaft slidably connected to the guide hole.

9. The ejector pin type demolding mechanism as described in claim 1, characterized in that, The ejector plate includes a mounting plate with a plurality of ejector holes, each of which contains an ejector pin. The molding plate has a plurality of demolding holes corresponding to the ejector pins. The mounting plate moves toward the molding plate so that the ejector pins extend into the demolding holes.

10. The ejector pin type demolding mechanism as described in claim 9, characterized in that, The ejector plate also includes a fixing plate and a locking member. The fixing plate has a locking hole, and the locking member passes through the locking hole and locks the mounting plate to clamp the ejector pin.

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