A separable forming chamber for 3D printing

Abstract

The present invention discloses a detachable forming chamber for 3D printing, comprising a forming chamber, a transfer mechanism which can be separated from the forming chamber is installed at the bottom of the forming chamber, and a driving device is installed in the transfer mechanism; the transfer mechanism is adopted, and the forming chamber is movably connected with the transfer mechanism to ensure that the forming chamber is always stationary, thereby ensuring that the optical element installed on the forming chamber remains stationary, thereby ensuring that the accuracy of the optical device can be stably maintained, and at the same time, the transfer mechanism is driven by the driving mechanism to achieve contact and separation between the transfer mechanism and the forming cylinder, because the transfer mechanism is installed on the forming chamber, the contact and separation between the forming chamber and the forming cylinder are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of 3D printing and relates to a detachable forming chamber for 3D printing. Background Art

[0002] For 3D printing equipment with a very large stroke, the printed parts are generally high, even higher than the forming chamber, so the work of picking up parts cannot be done in the forming chamber. Generally, a special picking position is designed. After the part is formed, the forming cylinder moves to the picking position to pick up the parts in the picking bin. Before the forming cylinder moves horizontally to the picking position, the forming cylinder must be separated from the forming chamber to realize the movement of the forming cylinder. In the prior art, when the forming chamber and the forming cylinder are separated, the forming chamber is lifted to separate the forming cylinder and the forming chamber. After the forming chamber is lifted, the optical device installed on it also moves. The movement of the optical device can easily cause the accuracy of the optical device to change. Summary of the invention

[0003] The purpose of the present invention is to provide a detachable forming chamber for 3D printing, which solves the problem of movement of optical devices when the existing forming chamber is separated from the forming cylinder.

[0004] The technical solution adopted by the present invention is a detachable forming chamber for 3D printing, comprising a forming chamber, a transfer mechanism which can be separated from the forming chamber is installed at the bottom of the forming chamber, the transfer mechanism is installed with at least one pair of driving devices, and the bottom of the driving device is higher than the bottom of the transfer mechanism.

[0005] The present invention is also characterized in that:

[0006] The driving device comprises a motor, the motor is connected to a crankshaft, a connecting rod is installed on the crankshaft, and the connecting rod is connected to the transfer mechanism.

[0007] The driving device comprises a plurality of first cylinders, and the plurality of first cylinders are all connected to the transfer mechanism.

[0008] The driving device comprises a horizontally placed push rod, one end of which is provided with a second cylinder, a side wall of the push rod is movably connected with a plurality of connecting rods, and the connecting rods are movably connected with the transfer mechanism.

[0009] A slide groove is opened on the side wall of the push rod, and the slide groove is located at an end away from the second cylinder. A rectangular idler wheel seat is arranged in the slide groove, and one end of the idler wheel seat is connected to a slide rod, which is inserted into the slide groove.

[0010] The forming chamber includes a forming chamber bottom plate, which is provided with a mounting hole and symmetrically arranged card slots. Each card slot is arranged around the mounting hole, and a vertical guide hole is provided at the bottom of each card slot. A transfer mechanism is installed in the mounting hole. The transfer mechanism includes a connecting cylinder, and a card block is fixedly connected to the upper end of the connecting cylinder, and the card block is in contact with the card slot.

[0011] The connecting cylinder is installed in the installation hole, and the outer wall of the connecting cylinder is in close contact with the inner wall of the installation hole.

[0012] A guide hole is also formed in each card slot, and the card block is connected with a guide block, which is inserted into the guide hole.

[0013] The upper surface of the clamping block is flush with the upper surface of the bottom plate of the forming chamber.

[0014] The detachable forming chamber for 3D printing of the present invention has at least the following beneficial effects:

[0015] First, a transfer mechanism is used, and the transfer mechanism and the forming chamber are movably connected to ensure that the forming chamber is always stationary, thereby ensuring that the optical element installed on the forming chamber remains stationary, thereby ensuring that the accuracy of the optical device can be stably maintained. At the same time, the transfer mechanism is driven by a driving mechanism to achieve contact and separation between the transfer mechanism and the forming cylinder. Because the transfer mechanism is installed on the forming chamber, the contact and separation between the forming chamber and the forming cylinder are achieved;

[0016] Second, the assembly structure of the transfer mechanism and the forming chamber adopts the installation method of the card slot and the card block. When the driving device is in the lower position, the card block contacts the card slot to form an integrated and flat bottom surface of the forming chamber. Guide blocks and guide holes are also used to ensure that when the cylinder body of the connecting cylinder is driven by the driving device to perform lifting and lowering movements, it can be stable and not deviate;

[0017] Third, the driving device uses a crankshaft and a connecting rod. The motor drives the crankshaft to rotate, and the crankshaft gives the connecting rod different heights, so that the connecting rod can push the transfer mechanism up and down, thereby realizing the contact and separation of the transfer mechanism and the forming cylinder. The driving device can also use a cylinder as a drive, which is accurate and convenient.

[0018] Fourth, the driving device adopts a push rod and a connecting rod, and the cylinder provides power. The extension and retraction of the push rod drive the movement of the connecting rod, and then drive the lifting and lowering of the transfer mechanism, thereby realizing the contact and separation of the transfer mechanism and the forming cylinder;

[0019] In summary, the detachable forming chamber for 3D printing of the present invention adopts a transfer mechanism to ensure that the main body of the forming chamber remains stationary and satisfies the contact and separation between the forming chamber and the forming cylinder, thereby ensuring that the optical device installed on the forming chamber node does not move, and has a compact structure, good synchronization, and high movement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a detached state of a detachable forming chamber for 3D printing of the present invention;

[0021] Figure 2 It is a schematic diagram of the contact state structure of a detachable forming chamber for 3D printing of the present invention;

[0022] Figure 3 It is a schematic diagram of the downward structure of a driving device of a detachable forming chamber for 3D printing according to the present invention;

[0023] Figure 4 The present invention Figure 3 A local enlarged schematic diagram of point B;

[0024] Figure 5 This is a schematic diagram of the upward structure of a driving device for a detachable forming chamber for 3D printing of the present invention.

[0025] Figure 6 The present invention Figure 5 A local enlarged schematic diagram of point A;

[0026] Figure 7 It is a schematic diagram of the crankshaft structure of a driving device of a detachable forming chamber for 3D printing according to the present invention;

[0027] Figure 8 The present invention Figure 2 A cross-sectional view of CC;

[0028] Fig. 9 It is a structural schematic diagram of a driving device with a push rod in a detachable forming chamber for 3D printing according to the present invention.

[0029] In the figure, 1. forming chamber, 1-1. forming chamber bottom plate, 1-2. card slot, 1-3. guide hole, 1-4. mounting hole, 2. transfer mechanism, 2-1. connecting cylinder, 2-2. card block, 2-3. guide block, 3. driving device, 3-1. connecting rod, 3-2. crankshaft, 3-3. motor, 3-4. first cylinder, 3-5. push rod, 3-6. second cylinder, 3-7. slide groove, 3-8. slide rod, 4. forming cylinder, 5. idler wheel seat. DETAILED DESCRIPTION

[0030] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] The present invention discloses a detachable forming chamber for 3D printing, such as Figure 1 As shown, it includes a forming chamber 1, at the bottom of which is installed a transfer mechanism 2 that can be separated from the forming chamber 1, the transfer mechanism 2 is installed with at least one pair of driving devices 3, and the driving devices are evenly arranged below the transfer mechanism 2 to ensure that the transfer mechanism 2 is pushed smoothly; the transfer mechanism is used to move up and down to achieve contact and separation between the forming chamber and the forming cylinder, which ensures that the forming chamber 1 and the optical device installed thereon do not move, thereby ensuring that the accuracy of the optical device does not change.

[0032] like Figure 1 , 2As shown, the forming chamber 1 includes a forming chamber bottom plate 1-1, the forming chamber bottom plate 1-1 is provided with a mounting hole 1-4, the forming chamber bottom plate 1-1 is also provided with symmetrically arranged card slots 1-2, each card slot 1-2 is arranged around the mounting hole 1-4, a vertical guide hole 1-3 is provided at the bottom of each card slot 1-2, a transfer mechanism 2 is installed in the mounting hole 1-4, the transfer mechanism 2 includes a connecting cylinder 2-1, a card block 2-2 is fixedly connected to the upper end of the connecting cylinder 2-1, the connecting cylinder 2-1 is installed in the mounting hole 1-4, and the outer wall of the connecting cylinder 2-1 is tightly connected to the inner wall of the mounting hole 1-4 The card block 2-2 is in close contact with the card slot 1-2, and the upper surface of the card block 2-2 is flush with the upper surface of the bottom plate 1-1 of the forming chamber; the arrangement of the card block 2-2 and the card slot 1-2 makes it possible for the card block 2-2 and the card slot 1-2 to form an integrated and flat bottom surface of the forming chamber when the driving device is in the lower position; a guide hole 1-3 is also provided in each card slot 1-2, and the card block 2-2 is connected to a guide block 2-3, which is inserted into the guide hole 1-3; to ensure that when the cylinder body of the connecting cylinder is driven by the driving device to perform a lifting movement, it can be stable and not deviate.

[0033] like Figure 1 , 2 As shown, the bottom of the driving device 3 is higher than the bottom of the transfer mechanism 2 to ensure that the driving device 3 does not interfere with the removal action of the molding cylinder 2 and the molding chamber 1 when the driving device 3 is lifting and lowering.

[0034] like Figure 7 As shown, the driving device 3 includes a crankshaft 3-2, on which a connecting rod 3-1 is installed. The connecting rod 3-1 is connected to the transfer mechanism 2, that is, connected to the guide block 2-3 in the transfer mechanism 2. The crankshaft 3-2 is driven by a motor 3-3. The motor drives the crankshaft to rotate, and the crankshaft drives the connecting rod. The connecting rod is connected to the transfer structure, and the rotational motion of the crankshaft is converted into a linear motion of the transfer structure, thereby realizing the rising and falling of the transfer mechanism.

[0035] like Figure 8 As shown, the driving device 3 can also be driven by a cylinder. The driving device 3 includes multiple first cylinders 3-4, and the multiple first cylinders 3-4 are all connected to the transfer mechanism 2. The specific connection method is that the telescopic ends of the multiple first cylinders 3-4 are connected to the guide blocks 2-3 of the transfer mechanism 2. In order to balance the thrust, the multiple first cylinders 3-4 can be evenly distributed. When the first cylinder 3-4 is extended, the transfer mechanism 2 is lifted up, and the transfer mechanism 2 is separated from the molding chamber 1. When the first cylinder 3-4 is contracted, the transfer mechanism 2 is brought back, and the transfer mechanism 2 is in contact with the molding chamber 1.

[0036] like Fig. 9As shown, the driving device can also be driven by a push rod and connecting rod. The driving device 3 includes a horizontally placed push rod 3-5, one end of which is fixedly connected to a second cylinder 3-6, the second cylinder 3-6 coincides with the center line of the push rod 3-5, and the side wall of the push rod 3-5 is movably connected with a plurality of connecting rods 3-1, the connecting rod 3-1 is connected to the transfer mechanism 2, specifically, the connecting rod 3-1 is connected to the guide block 2-3 in the transfer mechanism 2; a slide groove 3-7 is opened on the side wall of the push rod 3-5, the slide groove 3-7 is located at the end away from the second cylinder 3-6, and a The idler wheel seat 5 is in the shape of a rectangular parallelepiped, and one end of the idler wheel seat 5 is connected to a slide rod 3-8, and the slide rod 3-8 is inserted into the slide groove 3-7. The cooperation between the slide rod 3-8 connected by the idler wheel seat 5 and the slide groove 3-7 ensures the horizontal displacement distance of the push rod 3-5, and ensures the smooth operation of the push rod connecting rod driving device; when the driving device 3 with the push rod is working, when the second cylinder 3-6 is pushed outward, the push rod 3-5 moves horizontally to the left, and at the same time drives the connecting rod 3-1 to move. Under the constraint of the guide hole 1-3, the guide block 2-3 moves upward in the height direction to realize the rising action of the transfer mechanism 2; when the second cylinder 3-6 is retracted, the push rod 3-5 moves horizontally to the right, and at the same time drives the connecting rod 3-1 to move. Under the constraint of the guide hole 1-3, the guide block 2-3 moves downward in the height direction to realize the descending action of the transfer mechanism 2.

[0037] The working process of a detachable forming chamber for 3D printing of the present invention:

[0038] like Figure 2 , 5 6. When the drive device with crankshaft is working, the forming chamber 1 contacts the forming cylinder 4. At this time, the clamping block 2-2 is flush with the upper surface of the clamping groove 1-2, the guide block 2-3 is inserted into the guide hole 1-3, and the connecting rod 3-1 and the crank 3-2 have an angle; Figure 1 , 3 As shown in Figures 4 and 7, when the motor 3-3 rotates, it drives the crank 3-2 to rotate, and the crank 3-2 pushes the guide block 2-3 upward in the guide hole 1-3, that is, the forming chamber 1 and the forming cylinder 4 are in a separated state.

[0039] The present invention provides a detachable forming chamber for 3D printing, wherein a transfer mechanism 2 is designed between a forming chamber 1 and a forming cylinder 4. The movement of the transfer mechanism 2 realizes contact sealing and separation of the forming chamber 1 and the forming cylinder 4, and has a compact structure, good synchronization, and high movement accuracy.

Claims

1. A detachable molding chamber for 3D printing, characterized in that: The invention comprises a forming chamber (1) and a forming cylinder (4); a transfer mechanism (2) which can be separated from the forming chamber (1) is installed at the bottom of the forming chamber (1); the transfer mechanism (2) is installed with at least one pair of driving devices (3); the driving devices (3) are evenly arranged below the transfer mechanism (2); the bottom of the driving device (3) is higher than the bottom of the transfer mechanism (2); the driving device (3) drives the transfer mechanism (2) to perform lifting movement, thereby realizing contact sealing and separation between the forming chamber (1) and the forming cylinder (4), thereby improving the forming accuracy.

2. A detachable forming chamber for 3D printing as claimed in claim 1, characterized in that: The driving device (3) comprises a motor (3-3), the motor (3-3) is connected to a crankshaft (3-2), a connecting rod (3-1) is mounted on the crankshaft (3-2), and the connecting rod (3-1) is connected to the transfer mechanism (2).

3. A detachable forming chamber for 3D printing as claimed in claim 1, characterized in that: The driving device (3) comprises a plurality of first cylinders (3-4), and the plurality of first cylinders (3-4) are all connected to the transfer mechanism (2).

4. A detachable forming chamber for 3D printing as claimed in claim 1, characterized in that: The driving device (3) comprises a horizontally placed push rod (3-5), one end of which is mounted with a second cylinder (3-6), a side wall of the push rod (3-5) being movably connected to a plurality of connecting rods (3-1), and the connecting rods (3-1) being movably connected to the transfer mechanism (2).

5. A detachable forming chamber for 3D printing as claimed in claim 4, characterized in that: A slide groove (3-7) is provided on the side wall of the push rod (3-5), and the slide groove (3-7) is located at an end away from the second cylinder (3-6). A rectangular idler wheel seat (5) is arranged in the slide groove (3-7), and one end of the idler wheel seat (5) is connected to a slide rod (3-8), and the slide rod (3-8) is inserted into the slide groove (3-7).

6. A detachable forming chamber for 3D printing according to any one of claims 1 to 5, characterized in that: The forming chamber (1) comprises a forming chamber bottom plate (1-1), the forming chamber bottom plate (1-1) is provided with a mounting hole (1-4), the forming chamber bottom plate (1-1) is further provided with symmetrically arranged card slots (1-2), each of the card slots (1-2) is arranged around the mounting hole (1-4), a vertical guide hole (1-3) is provided at the bottom of each of the card slots (1-2), a transfer mechanism (2) is installed in the mounting hole (1-4), the transfer mechanism (2) comprises a connecting cylinder (2-1), a card block (2-2) is fixedly connected to the upper end of the connecting cylinder (2-1), and the card block (2-2) is in contact with the card slot (1-2).

7. A detachable forming chamber for 3D printing as claimed in claim 6, characterized in that: The connecting cylinder (2-1) is installed in the mounting hole (1-4), and the outer wall of the connecting cylinder (2-1) is in close contact with the inner wall of the mounting hole (1-4).

8. A detachable forming chamber for 3D printing as claimed in claim 6, characterized in that: A guide hole (1-3) is also provided in each of the clamping slots (1-2); the clamping block (2-2) is connected to a guide block (2-3); and the guide block (2-3) is inserted into the guide hole (1-3).

9. A detachable forming chamber for 3D printing as claimed in claim 8, characterized in that: The upper surface of the block (2-2) is flush with the upper surface of the forming chamber bottom plate (1-1).

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