A foldable forming cylinder for additive manufacturing
By designing a folding forming cylinder, the nested cylinder structure reduces the space occupied by the lifting mechanism, solving the problem of the high forming plane of the existing 3D printing equipment, and realizing the reduction of equipment height and operation convenience.
Patent Information
- Application Number
- CN202420800175.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-04-17
AI Technical Summary
The lifting mechanism of existing 3D printing equipment occupies a large vertical space at the bottom of the forming cylinder, resulting in a high forming plane, which is not conducive to the operation of the operator.
A folding molding cylinder for additive manufacturing is designed. By arranging the fixed cylinder and the telescopic cylinder in a nested manner, the telescopic cylinder can be folded when the piston plate is raised to the upper part; when the piston plate is lowered to the bottom, the telescopic cylinder extends relative to the fixed cylinder, thereby reducing the space occupied by the lifting mechanism.
The space occupied by the lifting mechanism at the bottom of the forming cylinder is effectively reduced, the forming plane height of the equipment is reduced, the overall height of the equipment is reduced, and the operator is more easily operated.
Smart Images
Figure CN222742152U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of additive manufacturing, in particular to a foldable forming cylinder used for additive manufacturing. Background Art
[0002] Industrial 3D printing equipment is generally built according to the process methods of SLM (selective laser melting), SLS (selective laser sintering) and BJ (binder jetting), and the forming cylinder is the key component of this type of equipment. At present, the main structure of the forming cylinder includes a cylinder body, a piston plate and a lifting mechanism; the existing cylinder bodies are assembled and integrated, and the piston plate is lifted and lowered in the cylinder body by the lifting mechanism to realize the printing of the formed parts. In order to meet the requirements that the piston plate can move from top to bottom in the cylinder body, the vertical length of the piston plate support must be greater than the cylinder body height of the forming cylinder to ensure that it can move in full stroke, resulting in the lifting mechanism occupying a large vertical space at the bottom of the forming cylinder. Especially for forming cylinders with large depth requirements, the entire forming cylinder mechanism occupies a larger space, resulting in the forming plane (i.e., the operating plane) of the equipment being very high, which increases the overall height of the equipment while also reducing the convenience of the operator (if the operating plane is too high, the operator needs to use a heightening device such as a foot-operated heightening frame to operate).
[0003] Therefore, how to provide a foldable forming cylinder for additive manufacturing that can effectively reduce the space occupied by the lifting mechanism at the bottom of the forming cylinder, lower the height of the forming plane (i.e., the operating plane) of the 3D printing equipment, and make it easier for operators to operate is a problem that technical personnel in this field urgently need to solve. Utility Model Content
[0004] In view of this, the utility model proposes a foldable forming cylinder for additive manufacturing, aiming to solve the technical problem that the lifting mechanism of the above-mentioned traditional 3D printing equipment occupies a large vertical space at the bottom of the forming cylinder, resulting in a high forming plane, which is not conducive to operation by operators.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] The utility model provides a foldable forming cylinder for additive manufacturing, comprising:
[0007] Frame,
[0008] A forming cylinder assembly, the forming cylinder assembly comprising a fixed cylinder, a telescopic cylinder, a piston plate, a piston support body and a telescopic cylinder support body; the fixed cylinder is fixed to the upper part of the frame, the top of the telescopic cylinder is slidably connected to the inside of the fixed cylinder; the piston plate is slidably connected to the inside of the telescopic cylinder; the top of the piston support body is fixed to the piston plate, and the telescopic cylinder support body is fixed to the bottom of the piston support body and corresponds to the bottom of the telescopic cylinder wall;
[0009] A lifting mechanism is installed on the frame; the lifting end of the lifting mechanism is transmission-connected to the telescopic cylinder support body to drive the piston plate to lift and lower in the telescopic cylinder through the piston support body, and can make the telescopic cylinder support body rise and abut against the bottom end of the telescopic cylinder to drive the telescopic cylinder to telescope and lift in the fixed cylinder.
[0010] The utility model provides a foldable forming cylinder for additive manufacturing. A fixed cylinder and a telescopic cylinder are arranged in a nested manner. When a piston plate is raised to the upper part, the telescopic cylinder can be folded up in the form of being retracted into the interior of the fixed cylinder. When the piston plate is lowered to the bottom, the telescopic cylinder is extended relative to the fixed cylinder. Thus, while ensuring that the overall depth of the forming cylinder is large, the size of the piston plate support body in the vertical direction can be made very short, which greatly reduces the space occupied by the lifting mechanism at the bottom of the forming cylinder, reduces the height of the forming plane (i.e., the operating plane) of the equipment, reduces the overall height of the equipment, and makes it easier for operators to operate.
[0011] As a further improvement of the above technical solution, the lifting mechanism includes a driving motor, a transmission assembly, a screw, and a nut; the screw is located on the circumference of the fixed cylinder and is arranged along the height direction of the frame; the driving motor is connected to the screw through the transmission assembly to drive it to rotate, the nut is threadedly connected to the screw, and the nut is fixedly connected to the telescopic cylinder support body.
[0012] The beneficial effect of the above technical solution is: the driving motor drives the screw to rotate through the transmission assembly, so that the nut can be lifted and lowered along the screw, and then the nut can drive the telescopic cylinder support body and the piston support body to lift and lower, so that the piston support body drives the piston plate to lift and lower, and then the telescopic cylinder support body can abut and drive the telescopic cylinder to lift and lower.
[0013] As a further improvement of the above technical solution, the frame includes a base plate, a vertical plate and a support leg; the bottom end of the vertical plate is fixed to the upper surface of the base plate, and the support leg is installed on the lower surface of the base plate; the top of the fixed cylinder is fixed to the top of the vertical plate; the lead screw is arranged along the height direction of the frame, and its lower end is rotatably installed on the base plate, and the drive motor is fixedly installed on the upper end of the base plate.
[0014] The beneficial effects of the above technical solution are: the support legs are used to support the base plate; the base plate is used to install and support the lead screw and the vertical plate, and the vertical plate is used to support and fix the cylinder; the lead screw is arranged on the base plate along the height of the frame, and the drive motor is installed on the upper end of the base plate, making the overall structure more compact.
[0015] As a further improvement of the above technical solution, the lifting mechanism also includes a lifting guide rail and a slider; the lifting guide rail is arranged along the height direction of the frame and fixed on the vertical plate; the slider is slidably connected to the lifting guide rail and fixed to the telescopic cylinder support body.
[0016] The beneficial effects of the above technical solution are: the vertical plate plays the role of fixing the lifting guide rail; the telescopic cylinder support body is slidably connected to the lifting guide rail through a slider, and the lifting guide rail plays a guiding role in the lifting and lowering of the telescopic cylinder support body, thereby ensuring the lifting stability of the piston plate.
[0017] As a further improvement of the above technical solution, the transmission assembly is arranged below the base plate; the lower end of the lead screw and the driving end of the drive motor both pass through the base plate and extend to below the base plate, and the lower end of the lead screw and the driving shaft of the drive motor are connected through the transmission assembly.
[0018] The beneficial effect of the above technical solution is that the transmission assembly is arranged below the bottom plate, which not only achieves a compact structure but also does not interfere with the forming cylinder assembly.
[0019] As a further improvement of the above technical solution, the telescopic cylinder support body is a support plate parallel to the bottom plate.
[0020] The beneficial effect of the above technical solution is that the telescopic cylinder support body is a support plate, which can improve the stability of the supporting and lifting telescopic cylinder.
[0021] As a further improvement of the above technical solution, the frame also includes an upper reinforcing plate and a lower reinforcing plate, the top of the upper reinforcing plate is fixed to the fixed cylinder, and one side end thereof is fixed to the top of the vertical plate; the bottom end of the lower reinforcing plate is fixed to the upper end of the bottom plate, and one side end thereof is fixed to the bottom of the vertical plate.
[0022] The beneficial effect of the above technical solution is that the upper reinforcing plate and the lower reinforcing plate play a role in fixing and reinforcing the stability of the frame.
[0023] As a further improvement of the above technical solution, the distance between the top surface of the piston plate and the top end of the telescopic cylinder support body is less than or equal to the height of the telescopic cylinder.
[0024] The beneficial effects of the above technical solution are: it can prevent the piston plate from slipping out of the telescopic cylinder; and when the distance between the top surface of the piston plate and the top end of the telescopic cylinder support body is equal to the height of the telescopic cylinder, the piston plate can move to a position flush with the top end of the telescopic cylinder.
[0025] As a further improvement of the above technical solution, the height of the fixed cylinder is greater than or equal to the height of the telescopic cylinder.
[0026] The beneficial effect of the above technical solution is that the height of the fixed cylinder is greater than or equal to the height of the telescopic cylinder, which can prevent the top end of the telescopic cylinder from protruding above the fixed cylinder.
[0027] As a further improvement of the above technical solution, the telescopic cylinder includes multiple sections of cylindrical cylinder bodies nested in sequence, the piston plate is slidably connected to the inside of the innermost cylindrical cylinder body, and the top of the outermost cylindrical cylinder body is slidably connected to the inside of the fixed cylinder.
[0028] The beneficial effects of the above technical solution are: the telescopic cylinder composed of multiple sections of cylindrical cylinder bodies nested in sequence further expands the telescopic and folding range of the forming cylinder; and the more sections there are, the shorter the piston plate support body can be made, and the design size of the piston plate support body in the vertical direction becomes shorter, which correspondingly achieves the purpose of lowering the height of the forming plane (i.e., the operating plane) of the forming cylinder.
[0029] It can be seen from the above technical solutions that, compared with the prior art, the utility model discloses a foldable forming cylinder for additive manufacturing, which has the following advantages and beneficial effects:
[0030] The utility model makes the cylinder barrel into multiple sections in a nested manner in the vertical direction. When the piston plate rises to the upper part, the multiple sections of the cylinder barrel can be folded up, and when the piston plate falls to the bottom, the multiple sections of the cylinder barrel stretch out. Thus, while ensuring that the depth of the forming cylinder is very large, the piston plate support member can be made very short in the vertical direction, which greatly reduces the space occupied by the lifting support body at the bottom of the forming cylinder, reduces the height of the forming plane (i.e., the operating plane) of the equipment, reduces the overall height of the equipment, and makes it easier for operators to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0032] Figure 1 A front view of a foldable forming cylinder for additive manufacturing according to the utility model after being extended;
[0033] Figure 2 A left view of a foldable forming cylinder for additive manufacturing according to the utility model after being extended;
[0034] Figure 3 A rear view of a foldable forming cylinder for additive manufacturing according to the utility model, with the cylinder stretched out;
[0035] Figure 4 The utility model Figure 1 Middle AA section;
[0036] Figure 5 The utility model Figure 2 Middle BB section;
[0037] Figure 6 The utility model is a front view of a foldable forming cylinder for additive manufacturing after folding;
[0038] Figure 7 The utility model Figure 6 Middle CC section;
[0039] In the figure: 1. frame; 11. bottom plate; 12. vertical plate; 13. support leg; 14. upper reinforcing plate; 15. lower reinforcing plate; 2. forming cylinder assembly; 21. fixed cylinder; 22. telescopic cylinder; 23. piston plate; 24. piston support body; 25. telescopic cylinder support body; 3. lifting mechanism; 31. driving motor; 311. motor fixing plate; 32. transmission assembly; 321. driving wheel; 322. driven wheel; 323. synchronous belt; 324. tensioner; 325. tensioner fixing shaft; 33. lead screw; 331. lead screw support; 34. nut; 341. nut fixing block; 35. lifting guide rail; 36. slider. DETAILED DESCRIPTION
[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0041] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0043] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0044] like Figures 1 to 7 As shown, a foldable forming cylinder for additive manufacturing comprises:
[0045] Frame 1,
[0046] The forming cylinder assembly 2 includes a fixed cylinder 21, a telescopic cylinder 22, a piston plate 23, a piston support body 24 and a telescopic cylinder support body 25; the fixed cylinder 21 is fixed to the upper part of the frame 1, and the top of the telescopic cylinder 22 is slidably connected to the inside of the fixed cylinder 21; the piston plate 23 is slidably connected to the inside of the telescopic cylinder 22; the top of the piston support body 24 is fixed to the bottom surface of the piston plate 23, and the telescopic cylinder support body 25 is fixed to the bottom of the piston support body 24 and corresponds to the bottom of the telescopic cylinder 22.
[0047] The lifting mechanism 3 is installed on the frame 1; the lifting end of the lifting mechanism 3 is transmission-connected to the telescopic cylinder support body 25 to drive the piston plate 23 to lift and lower in the telescopic cylinder 22 through the piston support body 24, and the telescopic cylinder support body 25 can be raised to abut against the bottom end of the telescopic cylinder 22 to drive the telescopic cylinder 22 to telescope and lift in the fixed cylinder 21.
[0048] The present embodiment provides a foldable forming cylinder for additive manufacturing, which arranges a fixed cylinder 21 and a telescopic cylinder 22 in a nested manner. When the piston plate rises to the upper part, the telescopic cylinder 22 can be folded up in the form of being retracted into the interior of the fixed cylinder 21; when the piston plate falls to the bottom, the telescopic cylinder 22 stretches out relative to the fixed cylinder 21, thereby ensuring that the overall depth of the forming cylinder is large while the size of the piston plate support body in the vertical direction can be made very short, which greatly reduces the space occupied by the lifting mechanism at the bottom of the forming cylinder, reduces the height of the forming plane (i.e., the operating plane) of the equipment, reduces the overall height of the equipment, and makes it easier for operators to operate.
[0049] In some embodiments, the lifting mechanism 3 includes a driving motor 31, a transmission assembly 32, a screw 33, and a nut 34; the screw 33 is located on the circumference of the fixed cylinder 21 and is arranged along the height direction of the frame 1; the driving motor 31 is connected to the screw 33 through the transmission assembly 32 to drive it to rotate, the nut 34 is sleeved and threadedly connected to the screw 33, and the nut 34 is fixedly connected to the telescopic cylinder support body 25.
[0050] The driving motor 31 drives the screw 33 to rotate through the transmission assembly 32, so that the nut 34 can rise and fall along the screw 33, and then the nut 34 can drive the telescopic cylinder support body 25 and the piston support body 24 to rise and fall, so that the piston support body 24 drives the piston plate 23 to rise and fall, and then the telescopic cylinder support body 25 can abut and drive the telescopic cylinder 22 to rise and fall.
[0051] In some embodiments, the frame 1 includes a base plate 11, a vertical plate 12 and a support leg 13; the bottom end of the vertical plate 12 is fixed to the upper surface of the base plate 11, and the support leg 13 is installed on the lower surface of the base plate 11; the top of the fixed cylinder 21 is fixed to the top of the vertical plate 12; the lead screw 33 is arranged along the height direction of the frame 1, and its lower end is rotatably installed on the base plate 11, and the drive motor 31 is fixedly installed on the upper end of the base plate 11.
[0052] The support legs 13 are used to support the base plate 11; the base plate 11 is used to install and support the lead screw 33 and the vertical plate 12, and the vertical plate 12 is used to fix and support the fixed cylinder 21; the lead screw 33 is arranged on the base plate 11 along the height of the frame 1, and the drive motor 31 is installed on the upper end of the base plate 11, making the overall structure more compact.
[0053] In some embodiments, the lifting mechanism 3 further includes a lifting rail 35 and a slider 36 ; the lifting rail 35 is arranged along the height direction of the frame 1 and fixed on the vertical plate 12 ; the slider 36 is slidably connected to the lifting rail 35 and fixed to the telescopic cylinder support 25 .
[0054] The vertical plate 12 serves to fix the lifting rail 35; the telescopic cylinder support body 25 is slidably connected to the lifting rail 35 through a slider 36, and the lifting rail 35 guides the lifting of the telescopic cylinder support body 25, thereby ensuring the lifting stability of the piston plate.
[0055] Specifically, there are two vertical plates 12, the two vertical plates 12 are parallel to each other and are arranged in the vertical direction; the fixed cylinder 21 is located between the two vertical plates 12, and its top is fixed to the tops of the two vertical plates 12; there are two lead screws 33; the two lead screws 33 are arranged in the relative direction of the two vertical plates 12, and the fixed cylinder 21 is located between the two lead screws 33; the two lead screws 33 are both threadedly connected with nuts 34, and the two lead screws 33 are installed on the base plate 11 through the lead screw support 331; a nut fixing block 341 is fixed on the nut 34, and the two nuts 34 are fixedly connected to the telescopic cylinder support body 25 through the nut fixing block 341.
[0056] Specifically, there are two groups of lifting rails 35, which are arranged on two vertical plates 12 respectively; each group of lifting rails 35 has two lifting rails, which are arranged at intervals along the width direction of the corresponding vertical plate 12. Each lifting rail 35 is slidably connected with a slider 36; the telescopic cylinder support body 25 is slidably connected with the lifting rail 35 through the slider 36; the two lead screws 33 and the four lifting rails 35 play a role in increasing the movement stability of the piston plate 23 and the telescopic cylinder 22.
[0057] In some embodiments, the transmission assembly 32 is arranged below the base plate 11; the drive motor 31 is fixed to the upper end of the base plate 11 through the motor fixing plate 311; the lower end of the lead screw 33 and the driving end of the drive motor 31 both pass through the base plate 11 and extend to below the base plate 11, and the lower end of the lead screw 33 and the driving shaft of the drive motor 31 are connected through the transmission assembly 32.
[0058] The transmission assembly 32 is arranged below the bottom plate 11 , which not only achieves a compact structure but also does not interfere with the operation of the forming cylinder assembly 2 .
[0059] Specifically, the transmission assembly 32 includes a driving wheel 321, a driven wheel 322, a synchronous belt 323, a tensioner wheel 324 and a tensioner wheel fixed shaft 325; the driving wheel 321 is fixedly mounted on the driving shaft of the driving motor 31; the driven wheel 322 is fixedly mounted on the bottom end of the screw 33, and the synchronous belt 323 is sleeved on the driving wheel 321 and the driven wheel 322 to drive the two screws 33 to rotate synchronously; the tensioner wheel 324 is installed on the base plate 11 through the tensioner wheel fixed shaft 325, and the tensioner wheel 324 abuts against the outer peripheral side of the synchronous belt 323 to put the synchronous belt 323 in a tensioned state.
[0060] In some embodiments, the telescopic cylinder support 25 is a support plate parallel to the bottom plate 11 .
[0061] The telescopic cylinder support body 25 is a support plate, which can improve the stability of supporting and lifting the telescopic cylinder 22 .
[0062] In some embodiments, the frame 1 also includes an upper reinforcing plate 14 and a lower reinforcing plate 15. The top of the upper reinforcing plate 14 is fixed to the fixed cylinder 21, and one side end thereof is fixed to the top of the vertical plate 12; the bottom end of the lower reinforcing plate 15 is fixed to the upper end of the bottom plate 11, and one side end thereof is fixed to the bottom of the vertical plate 12.
[0063] The upper reinforcing plate 14 and the lower reinforcing plate 15 play a role in fixing and reinforcing the stability of the frame.
[0064] In some embodiments, the distance between the top surface of the piston plate 23 and the top end of the telescopic cylinder support body 25 is less than or equal to the height of the telescopic cylinder 22; the piston plate 23 can be prevented from slipping out of the telescopic cylinder 22; and when the distance between the top surface of the piston plate 23 and the top end of the telescopic cylinder support body 25 is equal to the height of the telescopic cylinder 22, the piston plate 23 can be moved to a position flush with the top end of the telescopic cylinder 22.
[0065] In some embodiments, the height of the fixed cylinder 21 is greater than or equal to the height of the telescopic cylinder 22 .
[0066] The height of the fixed cylinder 21 is greater than or equal to the height of the telescopic cylinder 22 , which can prevent the top end of the telescopic cylinder 22 from protruding above the fixed cylinder 21 .
[0067] When the piston plate moves to the bottom of the telescopic cylinder, the telescopic cylinder and the fixed cylinder are stretched out, and the total depth of the forming cylinder is the sum of the depths of the telescopic cylinder and the fixed cylinder. During operation, the piston plate moves upward, and when the piston plate moves to be flush with the top of the telescopic cylinder, the telescopic cylinder support body 25 contacts the lower end surface of the telescopic cylinder, and will push the telescopic cylinder and the piston plate to move upward together until the piston plate is flush with the upper end surface of the fixed cylinder, and the telescopic cylinder and the fixed cylinder are folded up. Because the telescopic cylinder and the fixed cylinder are foldable, the vertical height of the piston support body 24 only needs to be a little more than half of the total depth of the forming cylinder. If it is a fixed whole cylinder body, it needs to be greater than the total depth of the cylinder body. Therefore, the structure of the utility model saves nearly half of the total depth of the forming cylinder in height, which greatly reduces the height of the equipment operation plane in the structural design, and also reduces the overall height of the equipment. It reduces the height space of the equipment and makes it more convenient for operators to operate.
[0068] In some embodiments, the telescopic cylinder 22 includes multiple cylindrical cylinder bodies nested in sequence, the piston plate 23 is slidably connected to the inside of the innermost cylindrical cylinder body, and the top of the outermost cylindrical cylinder body is slidably connected to the inside of the fixed cylinder 21.
[0069] The telescopic cylinder 22, which is composed of a plurality of sections of cylindrical cylinder bodies nested in sequence, further expands the telescopic and folding range of the forming cylinder; and the more sections there are, the shorter the piston plate support body can be made, and the design size of the piston plate support body in the vertical direction becomes shorter, thereby correspondingly achieving the purpose of lowering the height of the forming plane (i.e., the operating plane) of the forming cylinder.
[0070] It should be noted that, by evenly dividing the barrel of the forming cylinder into two sections, the vertical length of the piston support body only needs to be slightly greater than half of the total depth of the forming cylinder to meet the full stroke movement of the piston plate up and down, so that the total height of the foldable forming cylinder is reduced by nearly half of the cylinder height relative to the total height of the integrated forming cylinder. If the barrel of the forming cylinder is divided into three sections, the height will be reduced by nearly two-thirds of the cylinder height; and so on, the more sections the barrel has, the more the total height of the forming cylinder will be reduced.
[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.
[0072] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A foldable forming cylinder for additive manufacturing, characterized in that: include: Frame (1), A forming cylinder assembly (2), the forming cylinder assembly (2) comprising a fixed cylinder (21), a telescopic cylinder (22), a piston plate (23), a piston support body (24) and a telescopic cylinder support body (25); the fixed cylinder (21) is fixed to the upper part of the frame (1), the top of the telescopic cylinder (22) is slidably connected to the inside of the fixed cylinder (21); the piston plate (23) is slidably connected to the inside of the telescopic cylinder (22); the top of the piston support body (24) is fixed to the piston plate (23), and the telescopic cylinder support body (25) is fixed to the bottom of the piston support body (24) and corresponds to the bottom of the telescopic cylinder (22) wall; A lifting mechanism (3), wherein the lifting mechanism (3) is mounted on the frame (1); the lifting end of the lifting mechanism (3) is transmission-connected to the telescopic cylinder support body (25) so as to drive the piston plate (23) to be lifted and lowered in the telescopic cylinder (22) through the piston support body (24), and the telescopic cylinder support body (25) can be raised to abut against the bottom end of the telescopic cylinder (22) so as to drive the telescopic cylinder (22) to be telescopically lifted and lowered in the fixed cylinder (21).
2. A foldable forming cylinder for additive manufacturing according to claim 1, characterized in that: The lifting mechanism (3) comprises a driving motor (31), a transmission assembly (32), a lead screw (33), and a nut (34); the lead screw (33) is located on the circumferential side of the fixed cylinder (21) and is arranged along the height direction of the frame (1); the driving motor (31) is connected to the lead screw (33) through the transmission assembly (32) to drive the lead screw (33) to rotate, the nut (34) is threadedly connected to the lead screw (33), and the nut (34) is fixedly connected to the telescopic cylinder support body (25).
3. A foldable forming cylinder for additive manufacturing according to claim 2, characterized in that: The frame (1) comprises a base plate (11), a vertical plate (12) and a support foot (13); the bottom end of the vertical plate (12) is fixed to the upper surface of the base plate (11), and the support foot (13) is installed on the lower surface of the base plate (11); the top of the fixed cylinder (21) is fixed to the top of the vertical plate (12); the lead screw (33) is arranged along the height direction of the frame (1), and its lower end is rotatably installed on the base plate (11); the drive motor (31) is fixedly installed on the upper end of the base plate (11).
4. A foldable forming cylinder for additive manufacturing according to claim 3, characterized in that: The lifting mechanism (3) further comprises a lifting guide rail (35) and a sliding block (36); the lifting guide rail (35) is arranged along the height direction of the frame (1) and is fixed on the vertical plate (12); the sliding block (36) is slidably connected to the lifting guide rail (35) and is fixed to the telescopic cylinder support body (25).
5. A foldable forming cylinder for additive manufacturing according to claim 3, characterized in that: The transmission assembly (32) is arranged below the base plate (11); the lower end of the lead screw (33) and the driving end of the drive motor (31) both pass through the base plate (11) and extend to below the base plate (11); the lower end of the lead screw (33) and the driving shaft of the drive motor (31) are connected in transmission via the transmission assembly (32).
6. A foldable forming cylinder for additive manufacturing according to claim 3, characterized in that: The telescopic cylinder support body (25) is a support plate parallel to the bottom plate (11).
7. A foldable forming cylinder for additive manufacturing according to claim 3, characterized in that: The frame (1) further comprises an upper reinforcing plate (14) and a lower reinforcing plate (15); the top of the upper reinforcing plate (14) is fixed to the fixed cylinder (21), and one side end thereof is fixed to the top of the vertical plate (12); the bottom end of the lower reinforcing plate (15) is fixed to the upper end of the bottom plate (11), and one side end thereof is fixed to the bottom of the vertical plate (12).
8. The foldable forming cylinder for additive manufacturing according to claim 1, characterized in that: The distance between the top surface of the piston plate (23) and the top end of the telescopic cylinder support body (25) is less than or equal to the height of the telescopic cylinder (22).
9. The foldable forming cylinder for additive manufacturing according to claim 1, characterized in that: The height of the fixed cylinder (21) is greater than or equal to the height of the telescopic cylinder (22).
10. The foldable forming cylinder for additive manufacturing according to claim 1, characterized in that: The telescopic cylinder (22) comprises a plurality of cylindrical cylinder bodies nested in sequence, the piston plate (23) is slidably connected to the interior of the innermost cylindrical cylinder body, and the top of the outermost cylindrical cylinder body is slidably connected to the interior of the fixed cylinder (21).