Material throwing mechanism and three-dimensional forming equipment

Abstract

According to the material throwing mechanism and the three-dimensional forming equipment, the pushing piece moves between the first position and the second position, printing materials are automatically moved after being extruded every time, and manual cleaning of the printing materials is not needed. According to the main technical scheme, the material throwing mechanism comprises a bearing part used for bearing printing materials; the position of the pushing part comprises a first position and a second position; and the acting assembly is at least connected with the pushing piece, and the acting assembly is used for driving the pushing piece to move to the second position before the printing material is sprayed to the bearing piece and driving the pushing piece to move to the first position after the printing material is sprayed to the bearing piece so as to push the printing material to leave the bearing piece. The printing material throwing device is mainly used for throwing printing materials.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a material throwing mechanism and three-dimensional forming equipment. Background Art

[0002] During the 3D printing process, the printing material is pushed into the print head by the extruder, heated by the heating block, and turned into a molten state, and then sprayed onto the printing platform according to the contour of the printed model.

[0003] When performing multi-color printing, the printing material is replaced according to the printing requirements. Since the printing material is in a molten state near the outlet of the print head, in order to prevent the molten printing material from being drawn out, the printing material is cut when the printing material is replaced, and the molten printing material is left in the print head. After the new printing material enters the print head, the original molten printing material is squeezed out to prevent the consumables of different colors or properties from mixing and affecting the printing effect, and then the new printing material is printed. In the prior art, the position of the original printing material extruded by the print head is fixed. When the printing material is frequently replaced, the extruded printing material will accumulate and occupy the printing space, requiring the operator to manually clean it, which is troublesome to operate and cannot be automatically cleaned. Utility Model Content

[0004] In view of this, in order to solve at least one of the above technical problems, the utility model provides a throwing mechanism and a three-dimensional forming device.

[0005] In order to achieve the above purpose, the utility model mainly provides the following technical solutions:

[0006] On the one hand, the utility model provides a throwing mechanism, comprising:

[0007] A carrier, the carrier is used to receive printing materials;

[0008] A pushing member, wherein the position of the pushing member includes a first position and a second position;

[0009] The acting component is at least connected to the pushing member, and is used to drive the pushing member to move to the second position before the printing material is sprayed onto the carrier, and to drive the pushing member to move from the second position to the first position after the printing material is sprayed onto the carrier, so as to push the printing material away from the carrier.

[0010] On the other hand, the utility model also provides a three-dimensional forming device, including any one of the throwing mechanisms described above.

[0011] The utility model proposes a material throwing mechanism and three-dimensional forming equipment, which mainly realize automatic movement of printing materials by moving a pushing member between a first position and a second position, without the need for manual cleaning of the printing materials. In the prior art, the position of the original printing material extruded by the print head is fixed. When the printing material is frequently changed, the extruded printing material will accumulate, occupying the printing space, requiring the operator to manually clean it, which is troublesome to operate and cannot achieve automatic cleaning. Compared with the prior art, in the present application document, before the original printing material is extruded, the pushing member is moved to the second position by the acting component. After the original printing material is extruded onto the carrier, the acting component acts on the pushing member, so that the pushing member moves from the second position to the first position, and then pushes the original printing material on the carrier. This cycle is repeated to achieve automatic cleaning of the printing material on the carrier without manual cleaning, thereby realizing intelligent material replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the three-dimensional structure of a material throwing mechanism provided by an embodiment of the utility model when the pushing member is in the first position;

[0013] Figure 2 A schematic diagram of the three-dimensional structure of a material throwing mechanism provided by an embodiment of the utility model at a first viewing angle when the pushing member is in a first position;

[0014] Figure 3 A schematic diagram of the three-dimensional structure of a material throwing mechanism provided by an embodiment of the utility model at a second viewing angle when the pushing member is in a first position;

[0015] Figure 4 A schematic diagram of the three-dimensional structure of a material throwing mechanism provided by an embodiment of the utility model when the pushing member is in the first position at a third viewing angle;

[0016] Figure 5 A schematic diagram of the three-dimensional structure of a material throwing mechanism provided by an embodiment of the utility model when the pushing member is in the second position;

[0017] Figure 6 A schematic diagram of the explosion structure of a material throwing mechanism provided in an embodiment of the utility model;

[0018] Figure 7 A partial structural schematic diagram of a throwing mechanism provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0019] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the following is a detailed description of the specific optional implementation methods, structures, features and effects of the throwing mechanism proposed in the utility model in combination with the accompanying drawings and preferred embodiments.

[0020] On the one hand, if Figure 1-7 As shown, the embodiment of the utility model provides a throwing mechanism, comprising:

[0021] A carrier 100, the carrier 100 is used to receive printing materials;

[0022] A pushing member 200, wherein the position of the pushing member 200 includes a first position and a second position;

[0023] The acting component is at least connected to the pushing member 200. The acting component is used to drive the pushing member 200 to move to the second position before the printing material is sprayed onto the carrier 100, and to drive the pushing member 200 to move from the second position to the first position after the printing material is sprayed onto the carrier 100, so as to push the printing material away from the carrier.

[0024] The throwing mechanism can be used to receive and throw away the waste printing materials in the three-dimensional molding equipment. The three-dimensional molding equipment mainly includes a base, a gantry mechanism, an X-axis driving mechanism, a printing platform and a print head. The printing platform is connected to the base, the gantry mechanism is erected above the printing platform, the X-axis driving mechanism is connected to the gantry mechanism, the gantry mechanism is used to drive the X-axis driving mechanism to move in the Z-axis or vertical direction, and the print head is connected to the X-axis driving mechanism, and the X-axis driving mechanism is used to drive the print head to move in the X-axis direction. The relative position of the throwing mechanism and the three-dimensional molding equipment is fixed, and can be directly connected to the three-dimensional molding equipment, such as the connection between the carrier 100 and at least one of the X-axis driving mechanism, the gantry mechanism and the base, or the throwing mechanism can be supported and fixed by an additional structure. When in use, the installation position of the throwing mechanism should be within the moving range of the print head, such as the position where the print head sprays the printing material to the carrier 100, which can be the limit position of the print head moving in the X-axis direction. In addition, to ensure that the printing material can be thrown out of the three-dimensional molding device, the direction in which the pushing member 200 moves toward the first position should be toward the outside of the three-dimensional molding device, which can prevent the printing material from falling onto the printing platform.

[0025] The carrier 100 may include a material throwing area, and the material throwing area is used to receive the printing material. At least a part of the pushing member 200 is opposite to the material throwing area and is located above the material throwing area. When the pushing member 200 moves between the first position and the second position, the pushing member 200 will sweep over the top of the material throwing area, and then when the printing material is received on the material throwing area, the pushing member 200 will push the printing material to throw away the material throwing area, and then avoid the printing material from accumulating on the material throwing area. The pushing member 200 can be slidably abutted with the carrier 100 to ensure that the printing material is pushed completely. Alternatively, the pushing member 200 can be spaced apart from the carrier 100, such as the pushing member 200 and the material throwing area are spaced 0.3 mm to 1 mm apart, so as to avoid the pushing member 200 from moving unsmoothly due to friction between the pushing member 200 and the carrier 100, and because the printing material can be quickly solidified after being ejected, the small interval will not affect the printing material being pushed and thrown out as a whole.

[0026] When the pusher 200 is in the first position and the second position, they correspond to different sides of the material throwing area. Before the print head ejects the printing material, the pusher 200 will be moved from the first position to the second position under the action of the action component, and the second position is the preparatory material throwing position. After the print head ejects the printing consumables, the pusher 200 is moved from the second position to the first position under the action of the action component to push the printing material. Before the print head ejects the printing material next time, the pusher 200 moves from the first position to the second position again. The action component realizes the reciprocating movement of the pusher 200 between the first position and the second position, and then cleans the printing material ejected by the print head each time, so that no manual intervention is required during multiple material replacement processes.

[0027] The action component may be driven actively so that the pusher 200 moves between the first position and the second position. For example, the action component is a combination of a push motor and a push rod, the push rod is connected to the push motor, the push rod is also connected to the pusher 200, the push motor is connected to the main controller of the stereoscopic molding device, and the main controller can drive the push rod to move according to the position of the print head, and then push the pusher 200 to move. Alternatively, the action component may not have the function of active driving, and the action component moves under the action of an external force, and then drives the pusher 200 to move. For example, by moving the component structure of the stereoscopic molding device, an external force is applied to the first action member 300, such as applying an external force to the action component by moving the print head. When the printing material needs to be replaced, the original consumables in the print head are cut, the original consumables are extracted, and then new consumables are fed in. The print head moves toward the material throwing area, and during the movement, at least part of the structure of the action component is pushed to move until the print head moves to the material throwing area opposite to the carrier 100, and the original printing material is squeezed into the material throwing area. Then, the print head may be used to drive the action component to move, such as by magnetic attraction or adsorption, so that the pusher 200 moves to the first position, and then the material is thrown; or the action component's own energy storage may be used to drive the pusher 200 to move to the first position, and then the material is thrown.

[0028] The utility model proposes a material throwing mechanism and three-dimensional forming equipment, which mainly realize automatic movement of printing materials by moving a pushing member between a first position and a second position, without the need for manual cleaning of the printing materials. In the prior art, the position of the original printing material extruded by the print head is fixed. When the printing material is frequently changed, the extruded printing material will accumulate, occupying the printing space, requiring the operator to manually clean it, which is troublesome to operate and cannot achieve automatic cleaning. Compared with the prior art, in the present application document, before the original printing material is extruded, the pushing member is moved to the second position by the acting component. After the original printing material is extruded onto the carrier, the acting component acts on the pushing member, so that the pushing member moves from the second position to the first position, and then pushes the original printing material on the carrier. This cycle is repeated to achieve automatic cleaning of the printing material on the carrier without manual cleaning, thereby realizing intelligent material replacement.

[0029] In an optional embodiment, the action component includes a first action member 300 and a second action member 400. The first action member 300 is at least connected to the push member 200, and the first action member 300 is used to move under the action of an external force to drive the push member 200 to move from the first position to the second position. The second action member 400 is at least connected to the push member 200, and the second action member 400 is used to drive the push member 200 to move from the second position to the first position to push the printing material.

[0030] The first action member 300 may be of various types. For example, in the embodiment in which the print head is used to apply external force to the action component, the first action member 300 may be a magnetic member, which may be magnetically connected to the magnetic attraction member provided on the print head; or, the first action member 300 may be an adsorption member, such as a suction cup, which may be adsorbed and connected to the adsorption surface on the print head, such as the smooth surface. Alternatively, the first action member 300 may be used only for contacting with the print head. The connection between the first action member 300 and the push member 200 may be a direct connection, such as the first action member 300 and the push member 200 may be integrally formed; or, the first action member 300 and the push member 200 may be directly bonded, welded, or hung. Alternatively, the connection between the first action member 300 and the push member 200 may be an indirect connection, such as through an additionally provided transmission member, such as the print head drives the first action member 300 to move, and the first action member 300 indirectly drives the push member 200 to move through the transmission member. The second action member 400 may be an energy storage member, that is, the action component relies on energy storage to move the push member 200 to the first position. In an optional embodiment, the second acting member 400 includes an elastic member, which is used to provide a force to the pushing member 200 so that the pushing member 200 moves to the first position. In the embodiment in which the print head pushes the first acting member 300, the print head pushes the first acting member 300 to move, and then drives the pushing member 200 to move to the second position. During this process, the elastic member stores energy. After the print head extrude the printing material, the print head will move away from the first acting member 300 and return to the printing area for printing. At this time, the thrust of the print head on the first acting member 300 disappears or weakens, and the elastic member will release energy, and then pull the pushing member 200 back to the first position to achieve material throwing. The elastic member can be a spring such as a torsion spring, a tension spring, a compression spring, or can be made of an elastic material, such as foam, rubber, etc.

[0031] In an optional embodiment, the first acting member 300 moves in the same direction as the pushing member 200. To ensure that the direction in which the printed material is thrown is toward the outside of the printing platform, if the direction in which the pushing member 200 moves from the second position to the first position is the pushing direction, the pushing direction should be toward the outside of the three-dimensional molding device. The first acting member 300 can be a component that can be detachably connected to the print head, such as a magnetic member or a suction cup in the aforementioned embodiment, and then after the print head moves in the pushing direction to connect to the first acting member 300, the print head moves in the opposite direction of the pushing direction, such as the magnetic first acting member 300 moves in the opposite direction of the pushing direction, and the pushing member 200 will move in the same direction as the first acting member 300 toward the second position. When the pushing member 200 moves to the second position, the print head can extrude the printing material, and then the print head continues to move in the opposite direction of the pushing direction. The energy storage of the second acting member 400 increases, and then the external force on the pushing member 200 increases, and then the print head is separated from the first acting member 300, such as releasing the magnetic attraction, and then the pushing member 200 will move to the first position to push the printing material.

[0032] In an optional embodiment, the throwing mechanism also includes: a transmission member 500, the first acting member 300 is connected to the pushing member 200 through the transmission member 500, the first acting member 300 is used to drive the pushing member 200 to move through the transmission member 500, and the movement directions of the first acting member 300 and the pushing member 200 are opposite.

[0033] The first acting member 300 is at least used to move in the pushing direction under the action of an external force, so as to drive the pushing member 200 to move in the opposite direction of the pushing direction through the transmission member 500. When the print head needs to eject the printing material, after the print head moves in the pushing direction to abut against the first acting member 300, the print head continues to move along the pushing direction, and the first acting member 300 will move along the pushing direction under the abutment push of the print head, and the pushing member 200 will move toward the second position in the opposite direction of the first acting member 300. When the pushing member 200 moves to the second position, the print head can extrude the printing consumables. Then the print head moves in the opposite direction of the pushing direction, the thrust on the first acting member 300 is reduced or disappears, and the second acting member 400 drives the pushing member 200 to move to the first position to push the printing material. The force applied by the print head to the first acting member 300 is abutment and pushing, thereby preventing the print head and the first acting member 300 from detaching, and in the process of the pushing member 200 reaching the second position, the print head will limit the first acting member 300 to ensure that the pushing member 200 can accurately move to the second position, and when the print head does not move, the pushing member 200 will remain in the second position to avoid the risk of premature displacement of the pushing member 200.

[0034] In an optional implementation, if Figure 6-7As shown, the transmission member 500 includes a transmission belt 510 and a first turning portion 520 . The transmission belt 510 is wound around the first turning portion 520 , and a first end of the transmission belt 510 is connected to the pushing member 200 , and a second end of the transmission belt 510 is connected to the first acting member 300 .

[0035] The first steering portion 520 can be connected to the supporting member 100. By wrapping the transmission belt 510 around the first steering portion 520, the moving directions of the two ends of the transmission belt 510 will be opposite, so that the transmission belt 510 plays a role in reversing the moving direction between the pushing member 200 and the first acting member 300, so as to achieve the many advantages of the reverse movement of the pushing member 200 and the first acting member 300 as mentioned above, which will not be repeated here.

[0036] In an optional embodiment, the transmission member 500 also includes a transmission belt 510, a first steering portion 520 and a second steering portion 530, the second steering portion 530 is connected to the first acting member 300, the transmission belt 510 is wrapped around the first steering portion 520 and the second steering portion 530, the first end of the transmission belt 510 is connected to the pushing member 200, and the second end of the transmission belt 510 is connected to the supporting member 100.

[0037] The connection method of the transmission belt 510 with the carrier 100 includes at least one of a snap-in connection, a plug-in connection, a hook-up connection, a bonding connection, a bolt connection and a clamp connection. For example, a slot with a serration inside can be machined on the carrier 100, and the transmission belt 510 can be a rubber belt. The transmission belt 510 is clamped into the slot by its own deformation and is limited by the serration. The connection method of the transmission belt 510 with the pusher 200 includes at least one of a snap-in connection, a plug-in connection, a hook-up connection, a bonding connection, a bolt connection and a clamp connection. For example, similar to the carrier 100, a slot with a serration inside can be machined on the pusher 200, and the transmission belt 510 can be a rubber belt. The transmission belt 510 is clamped into the slot by its own deformation and is limited by the serration. The snap-in connection method makes the transmission belt 510 easy to install and replace, and avoids long-term wear or loosening that affects the transmission performance.

[0038] The second turning portion 530 serves to ensure the moving distance of the pusher 200. Specifically, the first turning portion 520 can be equivalent to a fixed pulley, and the second turning portion 530 is equivalent to a movable pulley. When the first acting member 300 moves one unit length under the action of the print head, the pusher 200 will move two units of length, thereby ensuring that the pusher 200 moves from the first position to the second position while reducing the distance the print head needs to move, shortening the time required for changing the printing material process, increasing printing efficiency, and reducing the energy consumption and mechanical loss of driving the print head to move. At the same time, the space for the first acting member 300 to move can also be reduced, which can achieve a reduction in the overall volume of the throwing mechanism. The winding directions of the transmission belt 510 on the first turning portion 520 and the second turning portion 530 can be the same or opposite.

[0039] The first steering portion 520 and the second steering portion 530 can be in various forms, so as to allow the transmission belt 510 to be freely transmitted. For example, in an optional embodiment, the first steering portion 520 and / or the second steering portion 530 are a bare rod, the transmission belt 510 is wound around the bare rod, and the transmission belt 510 is transmitted by sliding relative to the bare rod. In another optional embodiment, the first steering portion 520 is rotatably connected to the bearing member 100, and the second steering portion 530 is rotatably connected to the first action member 300, such as the first steering portion 520 and / or the second steering portion 530 can be a bare rod, the first steering portion 520 is rotatably connected to the bearing member 100 through a bearing, and similarly, the second steering portion 530 is rotatably connected to the first action member 300 through a bearing. In another optional embodiment, the first steering portion 520 and / or the second steering portion 530 are rollers. For example, the first steering portion 520 includes a first roller body and a first central axis, the bearing member 100 is fixedly connected with the first central axis, and the first roller body is rotatably connected to the first central axis. In some optional embodiments, an installation inner cavity is provided on the first acting member 300, and the second steering portion 530 can be provided in the installation inner cavity. For example, the second steering portion 530 includes a second roller body and a second central axis, and both ends of the second central axis are fixed on opposite side walls of the installation inner cavity. The second roller body is rotatably connected to the second central axis, thereby ensuring the stability of the second steering portion 530 and preventing the transmission belt 510 from falling off the second steering portion 530.

[0040] In an optional implementation, the connection method between the second acting member 400 and the pushing member 200 includes at least one of snap connection, plug-in connection, hanging connection, bonding, bolt connection and clamping connection.

[0041] In the embodiment where the second acting member 400 is an elastic member, a connecting column may be provided on the push member 200, and the first end of the second acting member 400 is annular, and the second acting member 400 may be hung on the push member 200, thereby facilitating the disassembly of the second acting member 400.

[0042] The first end of the second acting member 400 is connected to the pushing member 200, and the second end of the second acting member 400 is fixed in position, and can be fixed on the three-dimensional molding equipment, such as fixed on the gantry or the X-axis drive mechanism. Alternatively, in an optional embodiment, the first end of the second acting member 400 is connected to the pushing member 200, and the second end of the second acting member 400 is connected to the bearing member 100, and the connection method between the second acting member 400 and the bearing member 100 includes at least one of snap-on, plug-in, hanging, bonding, bolt connection and clamping connection. For example, a connecting column can be provided on the bearing member 100, and the second end of the second acting member 400 is annular, and the second acting member 400 can be hung on the bearing member 100. Then, when the second acting member 400 is deformed due to long-term use, or fails due to corrosion or other reasons, the second acting member 400 can be conveniently disassembled and replaced.

[0043] In an optional embodiment, the first acting member 300 is slidably connected to the carrier 100. The stability of the movement of the first acting member 300 is ensured, such as moving only in the pushing direction, to avoid the problem that the moving distance in the pushing direction is insufficient due to tilted movement, resulting in the inability of the pushing member 200 to accurately move to the second position. In addition, the first acting member 300 is slidably connected to the carrier 100, which can avoid vibration during the movement of the first acting member 300, avoid wear on the print head, and avoid misalignment with the print head.

[0044] The first action member 300 and the carrier 100 can be slidably connected in various ways, such as a first sliding opening 102 is provided on one of the first action member 300 and the carrier 100, and the other of the first action member 300 and the carrier 100 is slidably arranged in the first sliding opening 102, and the first sliding opening 102 is an opening extending in the pushing direction, so that the first action member 300 moves along the direction of the first sliding opening 102. It can also be, for example Figure 6-7 As shown, a first slide groove 301 is provided on one of the first operating member 300 and the carrier 100, and the other of the first operating member 300 and the carrier 100 includes a first slider 104, and the first slider 104 is slidably connected to the first slide groove 301. The first slide groove 301 and the first slider 104 both extend in the pushing direction, and then can cooperate with each other to achieve the limit of the moving direction of the first operating member 300. The above-mentioned first sliding opening 102 and the cooperation between the first slide groove 301 and the first slider 104 can be used simultaneously.

[0045] In another optional implementation, if Figure 6-7As shown, a containing cavity 101 and a first sliding opening 102 are provided on the carrier 100, and the first action member 300 includes an action member body 310 and an action portion 320, wherein the action portion 320 is connected to the action member body 310, the action member body 310 is located in the containing cavity 101, and the action member body 310 is connected to the pushing member 200, the action portion 320 is slidably arranged in the first sliding opening 102, and at least part of the structure of the action portion 320 extends out of the containing cavity 101.

[0046] The carrier 100 may further include an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, and the upper shell and the lower shell cooperate to enclose the accommodating inner cavity 101. The upper shell can be fixed to the stereoscopic molding equipment, and the internal components of the accommodating inner cavity 101 can be inspected and disassembled by removing the lower shell. The first sliding opening 102 can be arranged on the top plate of the upper shell, and the first slider 104 is arranged parallel to the first sliding opening 102. In the embodiment in which the aforementioned transmission member 500 includes a first steering portion 520, a second steering portion 530 and a transmission belt 510, the transmission member 500 is located in the accommodating inner cavity 101, and the action member body 310 is connected to the second steering portion 530. The aforementioned first slide groove 301 is provided on the action member body 310. The push member 200 is partially located in the accommodating inner cavity 101 and is connected to the transmission belt 510. The action portion 320 extends from the first sliding opening 102 to the outside of the accommodating inner cavity 101 for contacting the print head. The setting of the accommodating inner cavity 101 makes the overall structure of the throwing mechanism simple and can protect the transmission member 500, prevent the transmission member 500 from being exposed to air and oxidized, and prevent the printing material from dripping onto the transmission member 500, thereby ensuring the smoothness of the transmission member 500.

[0047] In an optional embodiment, the pusher 200 is slidably connected to the carrier 100. The stability of the movement of the pusher 200 is ensured, such as moving only in the pushing direction, avoiding the pusher 200 from moving in an insufficient distance in the pushing direction due to tilting, avoiding the pusher 200 from being unable to accurately move to the second position, and avoiding the pusher 200 from being unable to accurately push the printing material, thereby ensuring the stability of the moving direction of the printing material.

[0048] There are many ways to slide the pusher 200 and the carrier 100, such as one of the pusher 200 and the carrier 100 is provided with a second sliding opening 103, the other of the pusher 200 and the carrier 100 is slidably arranged in the second sliding opening 103, and the second sliding opening 103 is an opening extending in the pushing direction, so that the pusher 200 moves along the direction of the second sliding opening 103. Figure 6-7As shown, a second slide groove 201 is provided on one of the pusher 200 and the carrier 100, and the other of the pusher 200 and the carrier 100 includes a second slider 105, which is slidably connected to the second slide groove 201. The second slide groove 201 and the second slider 105 both extend in the pushing direction, and then can cooperate with each other to achieve the limit of the pusher 200 in the moving direction. The above-mentioned second sliding opening 103 and the cooperation between the second slide groove 201 and the second slider 105 can be used simultaneously.

[0049] In the embodiment in which the carrier 100 includes an upper shell and a lower shell, and the upper shell and the lower shell enclose the accommodating inner cavity 101, the second sliding opening 103 can be provided on the upper shell, and the pusher 200 includes a pusher body 210 and a pusher portion 220, the pusher portion 220 is connected to the pusher body 210, the pusher body 210 is located in the accommodating inner cavity 101, the second action member 400 is located in the accommodating inner cavity 101, and the pusher body 210 is connected to the transmission belt 510 of the transmission member 500 and the second action member 400. The second slide groove 201 is provided on the pusher body 210. At least a part of the pusher portion 220 is located outside the accommodating inner cavity 101, and one of the pusher body 210 and the pusher portion 220 is slidably arranged in the second sliding opening 103. For example, a sliding block may be provided on the pusher body 210, and the sliding block of the pusher body 210 may be slidably disposed in the second sliding opening 103, and the pusher 220 may be completely located outside the accommodating inner cavity 101, and connected to the pusher body 210 through the sliding block. The accommodating inner cavity 101 plays a role in protecting the second action member 400, the pusher body 210, and the transmission belt 510, avoiding the contamination caused by the exposure of the second action member 400 or the elastic member, thereby extending the service life of the second action member 400. The second sliding opening 103 may be provided on the top plate or the side plate of the upper shell, and may be determined according to needs, such as according to the setting position and setting method of the material throwing area on the carrier 100.

[0050] In an optional embodiment, the carrier 100 includes a supporting body 110 and a receiving portion 120. The receiving portion 120 is connected to the supporting body 110 and is used to receive the printing material. The pushing portion 220 is opposite to the receiving portion 120.

[0051] The receiving portion 120 includes a material throwing area, the supporting body 110 includes the aforementioned accommodating inner cavity 101, and the receiving portion 120 is suspended on one side of the supporting body 110, so that the printed material can be pushed on the receiving portion 120 and then thrown out in a parabolic trajectory from the edge of the receiving portion 120 by inertia. In some optional implementations, a collection box can be provided to receive the printed material removed from the receiving portion 120, thereby collecting the printed material.

[0052] In an optional embodiment, the receiving portion 120 includes a receiving plate 121, and the receiving plate 121 includes an upper side and a lower side opposite to each other, and the upper side of the receiving plate 121 is used to receive the printing material. The direction in which the pushing member 200 moves from the second position to the first position is the pushing direction. The receiving plate 121 is inclined toward the direction in which the lower side of the receiving plate 121 is facing in the pushing direction.

[0053] The receiving plate 121 includes a material throwing area. When in use, the upper side of the receiving plate 121 faces upward and is opposite to the print head. The receiving plate 121 is inclined in the pushing direction toward the direction in which the lower side of the receiving plate 121 faces, that is, the receiving plate 121 is inclined downward in the direction in which the printing material moves, so that the printing material has a tendency to move in the pushing direction, and then the pushing member 200 can be assisted to push the printing material to move, and the starting speed of the printing material leaving the receiving plate 121 can be increased, so that the printing material can make a parabolic motion when being pushed away from the receiving plate 121, thereby preventing the printing material from falling on the printing platform below the receiving plate 121 or making a free fall motion and accumulating in large quantities in the same area.

[0054] In an optional embodiment, the receiving portion 120 includes a receiving plate 121 and a surrounding plate 122 , the receiving plate 121 is used to receive the printing material, the surrounding plate 122 is connected to the receiving plate 121 , and the surrounding plate 122 and the receiving plate 121 are at a preset angle.

[0055] The enclosure 122 can be arranged opposite to the support body 110, or the enclosure 122 is arranged on the side of the receiving plate 121 opposite to the support body 110, the side opposite to the support body 110, and the side opposite to the pushing direction, and the enclosure 122 is in contact with the surface of the support body 110. That is, the enclosure 122 can be arranged around three sides of the receiving plate 121, and only open on one side of the pushing direction of the receiving plate 121, thereby ensuring that the printing material is only thrown out from one side of the pushing direction, and preventing the printing material from falling onto the printing platform from other positions. The enclosure 122 facing the side of the support body 110 is connected to the support body 110, such as by bolts, and the enclosure 122 facing the side of the support body 110 is in contact with the surface of the support body 110, thereby ensuring the stability of the position of the receiving portion 120.

[0056] In some other optional implementations, such as Figure 1 As shown, the support body 110 includes a first limiting member 111, and the receiving portion 120 includes a second limiting member 123. The first limiting member 111 and the second limiting member 123 act to limit the receiving portion 120. The first limiting member 111 may be a limiting head, and the second limiting member 123 may be a limiting opening opened on the enclosure 122. The limiting head is inserted into the limiting opening to limit the receiving portion 120 in the vertical direction, thereby avoiding the problem of easy loosening of a single bolt connection and playing a role in positioning during the installation process.

[0057] In an optional embodiment, the throwing mechanism further includes: a fixing member 600. The throwing mechanism is used to be connected to the stereoscopic forming device. The first end of the fixing member 600 is connected to the carrier 100, and the second end of the fixing member 600 includes a bending area, the bending area is adapted to the outer contour of at least a part of the stereoscopic forming device, and the bending area is used to abut against the outer wall of at least a part of the stereoscopic forming device.

[0058] For example, the throwing mechanism is used to connect to the X-axis drive mechanism of the stereolithography equipment, such as Figure 4 As shown, the fixing member 600 has a bending area on the top, and the bending area is used to abut against the top surface of the X-axis driving mechanism. A connection hole can be opened on the bending area, and after the bolt is inserted into the connection hole, it is screwed to the X-axis driving mechanism. Alternatively, the throwing mechanism is used to connect to the gantry of the three-dimensional forming equipment. The fixing member 600 has a bending area on the top, and the bending area is used to abut against the side wall of the gantry. A connection hole can be opened on the bending area, and after the bolt is inserted into the connection hole, it is screwed to the gantry. The surface abutment method can ensure that the relative position of the throwing mechanism and the three-dimensional forming equipment is stable, and the throwing mechanism is not easy to vibrate.

[0059] On the other hand, the utility model also provides a three-dimensional molding device, including a material throwing mechanism as described in any one of the above items, and the three-dimensional molding device also includes: an X-axis driving mechanism and a print head, the print head is movably connected to the X-axis driving mechanism, and the material throwing mechanism is connected to the X-axis driving mechanism. Alternatively, it can also be that the three-dimensional molding device also includes an X-axis driving mechanism, a print head and a gantry, the print head is movably connected to the X-axis driving mechanism, the X-axis driving mechanism is movably connected to the gantry, and the material throwing mechanism is connected to the gantry. The print head is used to push the action component to move so that the pusher 200 moves from the first position to the second position.

[0060] In an embodiment where the action component includes a first action member 300 and a second action member 400, and the first action member 300 moves in opposite directions to the push member 200. When the print head needs to extrude the original printing material, the print head moves toward the first action member 300 in the pushing direction until it abuts against the first action member 300, and the print head continues to move in the same direction, and the push member 200 moves in the opposite direction to the second position. When the push member 200 reaches the second position, the print head is opposite to the material throwing area and ejects the printing material to the material throwing area. Then the print head moves in the opposite direction of the pushing direction, and then releases the first action member 300. The push member 200 moves toward the first position under the action of the second action member 400, and then pushes the printing material on the material throwing area, so that the printing material moves out of the material throwing area and is dropped into a designated position or a collection box in a trajectory that is approximately parabolic.

[0061] The three-dimensional forming equipment includes any of the aforementioned throwing mechanisms, including the advantages of any of the aforementioned throwing mechanisms, which will not be repeated here.

[0062] The utility model also provides the following implementation modes:

[0063] Label 1. A throwing mechanism, comprising:

[0064] A carrier 100, the carrier 100 is used to receive printing materials;

[0065] A pushing member 200, wherein the position of the pushing member 200 includes a first position and a second position;

[0066] The acting component is at least connected to the pushing member 200. The acting component is used to drive the pushing member 200 to move to the second position before the printing material is sprayed onto the carrier 100, and to drive the pushing member 200 to move from the second position to the first position after the printing material is sprayed onto the carrier 100, so as to push the printing material away from the carrier 100.

[0067] Label 2, according to the throwing mechanism of label 1, wherein:

[0068] The action assembly includes a first action member 300 and a second action member 400;

[0069] The first action member 300 is at least connected to the push member 200, and the first action member 300 is used to move under the action of an external force to drive the push member 200 to move from the first position to the second position;

[0070] The second acting member 400 is at least connected to the pushing member 200 . The second acting member 400 is used to drive the pushing member 200 to move from the second position to the first position to push the printing material.

[0071] Reference numeral 3, a throwing mechanism according to reference numeral 2, wherein:

[0072] The first action member 300 and the pushing member 200 move in the same direction;

[0073] Alternatively, the throwing mechanism also includes: a transmission member 500, the first acting member 300 is connected to the pushing member 200 through the transmission member 500, the first acting member 300 drives the pushing member 200 to move through the transmission member 500, and the moving directions of the first acting member 300 and the pushing member 200 are opposite.

[0074] Reference numeral 4, a throwing mechanism according to reference numeral 3, wherein:

[0075] The transmission member 500 includes a transmission belt 510 and a first turning portion 520 . The transmission belt 510 is wound around the first turning portion 520 . A first end of the transmission belt 510 is connected to the pushing member 200 , and a second end of the transmission belt 510 is connected to the first acting member 300 .

[0076] Reference numeral 5. A throwing mechanism according to reference numeral 3, wherein:

[0077] The transmission member 500 includes a transmission belt 510, a first steering portion 520 and a second steering portion 530, the second steering portion 530 is connected to the first acting member 300, the transmission belt 510 is wrapped around the first steering portion 520 and the second steering portion 530, the first end of the transmission belt 510 is connected to the pushing member 200, and the second end of the transmission belt 510 is connected to the supporting member 100.

[0078] Reference numeral 6. A throwing mechanism according to reference numeral 5, wherein:

[0079] The first turning portion 520 and / or the second turning portion 530 is a polished rod, and the transmission belt 510 is wound around the polished rod;

[0080] Alternatively, the first turning portion 520 is rotatably connected to the carrier 100 , and / or the second turning portion 530 is rotatably connected to the first acting member 300 ;

[0081] Alternatively, the first steering portion 520 and / or the second steering portion 530 is a roller.

[0082] Reference numeral 7. A throwing mechanism according to reference numeral 5, wherein:

[0083] The connection method between the transmission belt 510 and the pusher 200 includes at least one of a snap connection, a plug connection, a hook connection, a bonding connection, a bolt connection and a clamp connection;

[0084] And / or, the transmission belt 510 is connected to the carrier 100, and the connection method between the transmission belt 510 and the carrier 100 includes at least one of snap connection, plug connection, hanging connection, bonding, bolt connection and clamp connection.

[0085] Reference numeral 8. A throwing mechanism according to reference numeral 2, wherein:

[0086] The second acting member 400 includes an elastic member, and the elastic member is used to provide an acting force to the pushing member 200 to move the pushing member 200 to the first position.

[0087] Reference numeral 9. A throwing mechanism according to reference numeral 2, wherein:

[0088] The connection method between the second action member 400 and the pushing member 200 includes at least one of a snap connection, a plug connection, a hook connection, a bonding connection, a bolt connection and a clamp connection;

[0089] And / or, the second acting member 400 is also connected to the carrier 100, and the connection method between the second acting member 400 and the carrier 100 includes at least one of snap connection, plug connection, hanging connection, bonding, bolt connection and clamp connection.

[0090] Reference numeral 10. The throwing mechanism according to reference numeral 2, wherein:

[0091] The first acting member 300 is slidably connected to the supporting member 100 .

[0092] Reference numeral 11. A throwing mechanism according to reference numeral 10, wherein:

[0093] A first sliding opening 102 is formed on one of the first operating member 300 and the supporting member 100 , and the other one of the first operating member 300 and the supporting member 100 is slidably disposed in the first sliding opening 102 ;

[0094] And / or, a first slide groove 301 is formed on one of the first action member 300 and the carrier 100, and the other of the first action member 300 and the carrier 100 includes a first slider 104, and the first slider 104 is slidably connected to the first slide groove 301;

[0095] And / or, a containing inner cavity 101 and a first sliding opening 102 are opened on the carrier 100, the first action member 300 includes an action member body 310 and an action portion 320, the action portion 320 is connected to the action member body 310, the action member body 310 is located in the containing inner cavity 101, and the action member body 310 is connected to the pushing member 200, the action portion 320 is slidably arranged in the first sliding opening 102, and part of the structure of the action portion 320 extends out of the containing inner cavity 101.

[0096] Label 12. A throwing mechanism according to label 1, wherein:

[0097] The pushing member 200 is slidably connected to the supporting member 100 .

[0098] Reference numeral 13. A throwing mechanism according to reference numeral 12, wherein:

[0099] A second sliding opening 103 is formed on one of the pushing member 200 and the carrying member 100 , and the other one of the pushing member 200 and the carrying member 100 is slidably disposed in the second sliding opening 103 ;

[0100] And / or, a second slide groove 201 is formed on one of the pushing member 200 and the supporting member 100, and the other one of the pushing member 200 and the supporting member 100 includes a second slider 105, and the second slider 105 is slidably connected to the second slide groove 201;

[0101] And / or, a containing cavity 101 is opened on the carrier 100, a second sliding opening 103 is opened on the carrier 100, the pushing member 200 includes a pushing member body 210 and a pushing portion 220, the pushing portion 220 is connected to the pushing member body 210, the pushing member body 210 is located in the containing cavity 101, the pushing member body 210 is connected to the action component, at least a part of the pushing portion 220 is located outside the containing cavity 101, and one of the pushing member body 210 and the pushing portion 220 is slidably arranged in the second sliding opening 103.

[0102] Reference numeral 14. A throwing mechanism according to reference numeral 1, wherein:

[0103] The carrier 100 includes a supporting body 110 and a receiving portion 120;

[0104] The receiving portion 120 is connected to the supporting body 110, and the receiving portion 120 is used to receive the printing material;

[0105] The pushing member 200 is opposite to the receiving portion 120 .

[0106] Reference numeral 15. A throwing mechanism according to reference numeral 14, wherein:

[0107] The receiving portion 120 includes a receiving plate 121, and the receiving plate 121 includes an upper side and a lower side opposite to each other, and the upper side of the receiving plate 121 is used to receive the printing material;

[0108] The direction in which the pushing member 200 moves from the second position to the first position is the pushing direction;

[0109] The receiving plate 121 is inclined toward the direction of the lower side of the receiving plate 121 in the pushing direction.

[0110] Reference numeral 16. A throwing mechanism according to reference numeral 14, wherein:

[0111] The receiving portion 120 includes a receiving plate 121 and a surrounding plate 122. The receiving plate 121 is used to receive the printing material. The surrounding plate 122 is connected to the receiving plate 121. The surrounding plate 122 and the receiving plate 121 form a preset angle.

[0112] The enclosure 122 is at least disposed opposite to the support body 110;

[0113] Alternatively, the direction in which the pushing member 200 moves from the second position to the first position is the pushing direction, and the enclosure 122 is arranged on the side of the receiving plate 121 opposite to the supporting body 110, the side relative to the supporting body 110, and the side opposite to the pushing direction, and the enclosure 122 is in contact with the surface of the supporting body 110.

[0114] Reference numeral 17. A throwing mechanism according to reference numeral 14, wherein:

[0115] The supporting body 110 includes a first limiting member 111 , and the receiving portion 120 includes a second limiting member 123 . The first limiting member 111 and the second limiting member 123 act to limit the receiving portion 120 .

[0116] Reference numeral 18. The material throwing mechanism according to reference numeral 1, wherein the material throwing mechanism further comprises:

[0117] Fixing member 600;

[0118] The throwing mechanism is connected to the stereo forming equipment;

[0119] The first end of the fixing member 600 is connected to the carrier 100 , and the second end of the fixing member 600 includes a bending area, and the bending area is used to abut against the outer wall of at least a part of the three-dimensional forming device.

[0120] 19. A three-dimensional forming device, comprising a throwing mechanism as described in any one of the above-mentioned numbers 1-18.

[0121] 20. The three-dimensional forming device according to number 19, wherein:

[0122] The three-dimensional molding equipment also includes: an X-axis driving mechanism and a print head, the print head is movably connected to the X-axis driving mechanism, and the throwing mechanism is connected to the X-axis driving mechanism.

[0123] Alternatively, the three-dimensional forming device further comprises: an X-axis driving mechanism, a print head and a gantry, the print head is movably connected to the X-axis driving mechanism, the X-axis driving mechanism is movably connected to the gantry, and the throwing mechanism is connected to the gantry;

[0124] The print head is used to push the action component to move, so that the push member 200 moves from the first position to the second position; when the push member 200 moves to the second position, the print head extrude the printing material.

[0125] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A throwing mechanism, characterized in that: include: A carrier, the carrier being used to receive printing materials; A pushing member, wherein the position of the pushing member includes a first position and a second position; An acting component, the acting component is at least connected to the pushing member, and the acting component is used to drive the pushing member to move to the second position before the printing material is ejected onto the supporting member, and to drive the pushing member to move from the second position to the first position after the printing material is ejected onto the supporting member, so as to push the printing material away from the supporting member.

2. The throwing mechanism according to claim 1, characterized in that: The action component includes a first action member and a second action member; The first action member is at least connected to the pushing member, and the first action member is used to move under the action of an external force to drive the pushing member to move from the first position to the second position; The second actuating member is at least connected to the pushing member, and the second actuating member is used to drive the pushing member to move from the second position to the first position to push the printing material.

3. The throwing mechanism according to claim 2, characterized in that: The first action member and the pushing member have the same moving direction; Alternatively, the throwing mechanism further includes: a transmission member, through which the first acting member is connected to the pushing member, and the first acting member drives the pushing member to move via the transmission member, and the moving directions of the first acting member and the pushing member are opposite.

4. The throwing mechanism according to claim 3, characterized in that: The transmission member includes a transmission belt and a first steering portion. The transmission belt is wound around the first steering portion, and a first end of the transmission belt is connected to the pushing member, and a second end of the transmission belt is connected to the first acting member.

5. The throwing mechanism according to claim 3, characterized in that: The transmission member includes a transmission belt, a first steering portion and a second steering portion, the second steering portion is connected to the first acting member, the transmission belt is wound around the first steering portion and the second steering portion, the first end of the transmission belt is connected to the pushing member, and the second end of the transmission belt is connected to the bearing member.

6. The throwing mechanism according to claim 5, characterized in that: The first steering portion and / or the second steering portion is a polished rod, and the transmission belt is wound around the polished rod; Alternatively, the first steering portion is rotatably connected to the bearing member, and / or the second steering portion is rotatably connected to the first acting member; Alternatively, the first steering portion and / or the second steering portion is a roller.

7. The throwing mechanism according to claim 5, characterized in that: The connection method between the transmission belt and the pushing member includes at least one of a snap connection, a plug connection, a hook connection, a bonding connection, a bolt connection and a clamp connection; And / or, the transmission belt is connected to the carrier, and the connection method between the transmission belt and the carrier includes at least one of snap connection, plug-in connection, hanging connection, bonding, bolt connection and clamping connection.

8. The throwing mechanism according to claim 2, characterized in that: The second acting member includes an elastic member, and the elastic member is used to provide an acting force to the pushing member to move the pushing member toward the first position.

9. The throwing mechanism according to claim 2, characterized in that: The connection method between the second action member and the pushing member includes at least one of a snap connection, a plug connection, a hook connection, a bonding connection, a bolt connection and a clamp connection; And / or, the second acting member is also connected to the supporting member, and the connection method between the second acting member and the supporting member includes at least one of snap connection, plug-in connection, hanging connection, bonding, bolt connection and clamping connection.

10. The throwing mechanism according to claim 2, characterized in that: The first acting member is slidably connected to the bearing member.

11. The throwing mechanism according to claim 10, characterized in that: A first sliding opening is formed on one of the first action member and the bearing member, and the other of the first action member and the bearing member is slidably disposed through the first sliding opening; And / or, a first slide groove is provided on one of the first action member and the bearing member, and the other of the first action member and the bearing member comprises a first slider, and the first slider is slidably connected to the first slide groove; And / or, the supporting member is provided with a accommodating inner cavity and a first sliding opening, the first acting member includes an acting member body and an acting portion, the acting portion is connected to the acting member body, the acting member body is located in the accommodating inner cavity, and the acting member body is connected to the pushing member, the acting portion is slidably arranged in the first sliding opening, and part of the structure of the acting portion extends out of the accommodating inner cavity.

12. The throwing mechanism according to claim 1, characterized in that: The pushing member is slidably connected to the bearing member.

13. The throwing mechanism according to claim 12, characterized in that: A second sliding opening is formed on one of the pushing member and the supporting member, and the other one of the pushing member and the supporting member is slidably disposed through the second sliding opening; And / or, a second slide groove is formed on one of the pushing member and the supporting member, and the other of the pushing member and the supporting member comprises a second slider, and the second slider is slidably connected to the second slide groove; And / or, a accommodating inner cavity is provided on the supporting member, a second sliding opening is provided on the supporting member, the pushing member includes a pushing member body and a pushing portion, the pushing portion is connected to the pushing member body, the pushing member body is located in the accommodating inner cavity, the pushing member body is connected to the acting component, at least a portion of the pushing portion is located outside the accommodating inner cavity, and one of the pushing member body and the pushing portion is slidably arranged through the second sliding opening.

14. The throwing mechanism according to claim 1, characterized in that: The bearing member comprises a supporting body and a receiving portion; The receiving portion is connected to the supporting body, and the receiving portion is used to receive the printing material; The pushing member is opposite to the receiving portion.

15. The throwing mechanism according to claim 14, characterized in that: The receiving portion includes a receiving plate, the receiving plate includes an upper side and a lower side opposite to each other, and the upper side of the receiving plate is used to receive the printing material; The direction in which the pushing member moves from the second position to the first position is a pushing direction; The receiving plate is inclined toward a direction of a lower side of the receiving plate in the pushing direction.

16. The throwing mechanism according to claim 14, characterized in that: The receiving portion includes a receiving plate and a surrounding plate, wherein the receiving plate is used to receive the printing material, the surrounding plate is connected to the receiving plate, and the surrounding plate and the receiving plate are at a preset angle; The enclosure is at least arranged opposite to the support body; Alternatively, the direction in which the pushing member moves from the second position to the first position is the pushing direction, and the enclosure is arranged on the side of the receiving plate opposite to the supporting body, the side opposite to the supporting body, and the side opposite to the pushing direction, and the enclosure is in contact with the surface of the supporting body.

17. The throwing mechanism according to claim 14, characterized in that: The supporting body includes a first limiting member, and the receiving portion includes a second limiting member, and the first limiting member and the second limiting member act together to limit the receiving portion.

18. The throwing mechanism according to claim 1, characterized in that: The throwing mechanism also includes: Fixings; The material throwing mechanism is connected to the stereoscopic forming equipment; The first end of the fixing member is connected to the supporting member, and the second end of the fixing member includes a bending area, and the bending area is used to abut against the outer wall of at least a part of the three-dimensional forming device.

19. A three-dimensional forming device, characterized in that: It comprises a throwing mechanism as described in any one of claims 1 to 18 above.

20. The three-dimensional forming device according to claim 19, characterized in that: The three-dimensional forming device further comprises: an X-axis driving mechanism and a print head, wherein the print head is movably connected to the X-axis driving mechanism, and the throwing mechanism is connected to the X-axis driving mechanism; Alternatively, the three-dimensional forming device further comprises: an X-axis driving mechanism, a print head and a gantry, wherein the print head is movably connected to the X-axis driving mechanism, the X-axis driving mechanism is movably connected to the gantry, and the throwing mechanism is connected to the gantry; The print head is used to push the action component to move, so that the pushing member moves from the first position to the second position; when the pushing member moves to the second position, the print head extrude the printing material.

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