Take-up device and three-dimensional forming equipment

Abstract

The utility model provides a take-up device and three-dimensional forming equipment. The take-up device comprises a wire wheel assembly. The conductive slip ring comprises a stator part and a rotor part, and the rotor part is connected with the wire wheel assembly; the conductive wire is wound on the wire wheel assembly and electrically connected with the rotor part, and the conductive wire is provided with a free end which can stretch out or retract relative to the wire wheel assembly; the elastic piece is connected with the wire wheel assembly, and the elastic piece is configured to apply rotating force to the wire wheel assembly so that the wire wheel assembly can rotate to retract the extended conductive wire; one of the free end and the stator part is configured to be electrically connected with a control device of the three-dimensional forming equipment, the other one is configured to be electrically connected with an electronic device of the three-dimensional forming equipment, and the electronic device can move relative to the control device. Therefore, the take-up device can achieve electric connection between the control device and the electronic device, the electric lead is wound back to the wire wheel assembly in the process that the control device and the electronic device get close to each other, and the reliability of the three-dimensional forming equipment and the neatness of the appearance of the three-dimensional forming equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a wire take-up device and three-dimensional forming equipment. Background Art

[0002] Stereoscopic molding equipment is a kind of cumulative manufacturing technology and a machine of rapid prototyping technology. It is based on a digital model file and uses special wax materials, powdered metal or plastic and other adhesive materials to print multiple layers of adhesive materials in sequence to create three-dimensional objects.

[0003] Among them, the photocuring three-dimensional molding equipment adopts photocuring printing technology. Photocuring uses photosensitive resin as raw material, and focuses light of specific wavelength and intensity onto the surface of the photocuring material to solidify it from point to line, and from line to surface in sequence, completing the solidification of one layer, and then drives the molding platform to move in the vertical direction by the lifting mechanism to the height of a layer, and then solidifies another layer, and stacks them layer by layer on the molding platform to form a three-dimensional entity.

[0004] In the three-dimensional molding equipment in the related art, the material tank is placed on the base, the lifting mechanism is connected to the base, and the molding platform is usually connected to the lifting mechanism through a cantilever bracket. Electronic devices are set on the cantilever bracket or the molding platform to complete certain functions, such as setting sensors to detect the force of the molding platform, or detecting the parallelism between the molding platform and the material tank to ensure the printing quality. Usually, the sensor needs to be connected to the control device of the three-dimensional molding equipment through a wire. In order to ensure that the molding platform has a sufficient printing height, the wire needs to be set long enough. In this way, when the molding platform is lowered, there is a problem of wire accumulation. Utility Model Content

[0005] In view of this, the utility model provides a wire take-up device and a three-dimensional forming device. The wire take-up device can realize the electrical connection between the control device and the electronic device, and wind the conductive wire back onto the reel assembly when the control device and the electronic device are close to each other, thereby solving the problem of conductive wire accumulation. As a result, the reliability of the three-dimensional forming device and the neatness of its appearance can be improved.

[0006] According to a first aspect of the utility model, a wire take-up device is provided, which is applied to a three-dimensional forming device, and the wire take-up device comprises: a wire wheel assembly; a conductive slip ring, which comprises a stator part and a rotor part, and the rotor part is connected to the wire wheel assembly; a conductive wire, which is wound around the wire wheel assembly and electrically connected to the rotor part, and the conductive wire is provided with a free end which can be extended or retracted relative to the wire wheel assembly; an elastic member, which is connected to the wire wheel assembly, and the elastic member is configured to apply a rotational force to the wire wheel assembly so that the wire wheel assembly rotates to retract the extended conductive wire; one of the free end and the stator part is configured to be electrically connected to a control device of the three-dimensional forming device, and the other of the free end and the stator part is configured to be electrically connected to an electronic device of the three-dimensional forming device, and the electronic device is configured to be movable relative to the control device.

[0007] Furthermore, the elastic member is a constant force spring; the stator part is located inside the rotor part, and the reel assembly is sleeved on the outside of the rotor part; wherein the rotor part and the reel assembly are connected by an adhesive; or the rotor part and the reel assembly are configured to be in surface contact to limit the relative movement of the rotor part and the reel assembly; or the rotor part and the reel assembly are configured to be connected by screws.

[0008] Furthermore, the reel assembly includes a reel body, a housing for accommodating a conductive slip ring is provided in the reel body, a conductive wire is wound around the reel body, a first connecting wire is connected to the rotor part, and a second connecting wire is connected to the stator part; wherein the first connecting wire is passed through the reel body and connected to the conductive wire, and the second connecting wire is passed through the reel body and extends to the outside of the reel body.

[0009] Furthermore, the reel body includes a connecting disk, and a first ring body and a second ring body distributed on one side of the connecting disk and coaxially arranged, the first ring body is connected to the rotor part, the second ring body is located on the outside of the first ring body, and the conductive wire is wound around the second ring body; the reel assembly also includes a reel cover, the reel cover is located on the side of the first ring body away from the connecting disk and is combined with the first ring body to form a accommodating cavity; wherein a first notch is provided on the first ring body, and a second notch is provided on the second ring body, the first connecting wire is passed through the first notch, and the second notch is connected to the conductive wire; a connecting port is provided at the end of the first ring body away from the reel cover, and the second connecting wire is passed through the connecting port.

[0010] Furthermore, the diameter of the connection port is smaller than the diameter of the rotor portion, and the rotor portion abuts against the first ring body on the peripheral side of the connection port.

[0011] Furthermore, an annular boss is provided on one side of the wire wheel cover facing the connecting disk, the first ring body is inserted inside the annular boss, and a third notch for the first connecting wire to pass through is provided at a position opposite to the second notch of the annular boss.

[0012] Furthermore, the connection disk extends to the outer circumference of the second ring body, the wire wheel cover extends to the outer circumference of the second ring body, and the conductive wire wound on the second ring body is located between the connection disk and the wire wheel cover.

[0013] Furthermore, one of the reel cover and the reel body is provided with a plurality of plug-in parts, and the other is provided with a slot for accommodating the plug-in parts.

[0014] Furthermore, the wire take-up device also includes: a shell, a reel assembly, a conductive slip ring, and an elastic member installed inside the shell, the reel assembly is rotatable relative to the shell, and the shell is provided with a first avoidance opening and a second avoidance opening; wherein, the free end is passed through the first avoidance opening and extends to the outside of the shell, and the second connecting line on the stator part is passed through the second avoidance opening and extends to the outside of the shell.

[0015] Furthermore, the shell includes a first shell and a second shell that are detachably connected, the first shell and the second shell are connected and enclose a movement space, and the wire wheel assembly is located in the movement space and is rotatable relative to the shell.

[0016] Furthermore, the wire take-up device further comprises: a mounting frame connected to the outside of the shell, and the mounting frame is configured to be connected to the component to be installed.

[0017] Furthermore, a connecting portion is provided inside the shell, one end of the elastic member is connected to the connecting portion, a clamping portion is provided at the other end of the constant force spring, and a clamping groove for accommodating the clamping portion is provided on the reel assembly; wherein the clamping portion is I-shaped, E-shaped, M-shaped, or V-shaped.

[0018] A second aspect of the present invention provides a three-dimensional forming device, comprising: a control device, an electronic component, and the wire take-up device of any one of the first aspects, wherein the electronic component is configured to be movable relative to the control device.

[0019] Furthermore, the three-dimensional forming equipment also includes: a base, a lifting mechanism, a cantilever bracket and a forming platform, the lifting mechanism is connected to the base, the forming platform is connected to the lifting mechanism through the cantilever bracket, the lifting mechanism is configured to drive the cantilever bracket to drive the forming platform close to or away from the base, the control device is arranged on the base, the electronic device is a sensor, the sensor is arranged on the cantilever bracket or the forming platform, and the base is provided with a third avoidance opening driven by the conductive wire for avoiding the wire take-up; wherein the wire take-up is installed inside the base, the free end is passed through the third avoidance opening and connected to the sensor, and the stator part is electrically connected to the control device; or the wire take-up is connected to the cantilever bracket or the lifting mechanism to connect the part of the cantilever bracket, the free end is passed through the third avoidance opening and electrically connected to the control device, and the stator part is electrically connected to the sensor.

[0020] The utility model provides a wire take-up device and a three-dimensional forming device. The wire take-up device includes a wire wheel assembly, a conductive slip ring, a conductive wire and an elastic member. The conductive wire is electrically connected to the rotor part of the conductive slip ring. One of the free ends of the conductive wire and the stator part of the conductive slip ring is electrically connected to the electronic device, and the other is electrically connected to the control device, so that the stator part and the rotor part of the conductive slip ring can be connected to the electronic device and the control device respectively. The wire wheel assembly is connected to the rotor part, so that the rotation of the conductive wire wheel assembly drives the rotor part to rotate relative to the stator part, and the electronic device and the control device can be electrically connected and transmit electrical signals. The elastic member is connected to the wire wheel assembly, and the elastic member applies a rotational force to the wire wheel assembly to rotate the wire wheel assembly to retract the extended conductive wire, which can avoid the problem of conductive wire accumulation in the process of the control device and the electronic device approaching each other, and further avoid the problem of the accumulated conductive wires being entangled together and causing the equipment to fail. Therefore, the reliability of the three-dimensional forming device can be improved, the failure rate can be reduced, and at the same time, the aesthetics and neatness of the appearance of the three-dimensional forming device can be improved.

[0021] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various other advantages and benefits will become apparent to those skilled in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only used for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used throughout the accompanying drawings to represent the same components. Among them:

[0023] Figure 1 A three-dimensional structural schematic diagram of a cable take-up device of the utility model from one viewing angle is shown;

[0024] Figure 2 A structural schematic diagram of the wire take-up device of the utility model from another perspective is shown;

[0025] Figure 3 An exploded schematic diagram showing a viewing angle of the wire take-up device of the utility model;

[0026] Figure 4 An exploded schematic diagram showing another perspective of the wire take-up device of the utility model;

[0027] Figure 5 A structural schematic diagram showing another perspective of the wire take-up device of the utility model;

[0028] Figure 6 Shows Figure 5A cross-sectional view of the embodiment shown in the AA direction;

[0029] Figure 7 Shows Figure 5 A cross-sectional view of the embodiment shown in the BB direction;

[0030] Figure 8 A schematic diagram of assembling a wire wheel body and a conductive slip ring provided by an embodiment of the utility model is shown;

[0031] Fig. 9 A partial structural schematic diagram of a three-dimensional forming device of the utility model from one viewing angle is shown;

[0032] Fig.10 Shows Fig. 9 A schematic structural diagram of the embodiment shown in another perspective.

[0033] in, Figures 1 to 10 The corresponding relationship between the reference numerals and the component names is as follows:

[0034] 100 wire take-up device, 110 wire wheel body, 111 connecting plate, 1111 connecting port, 112 first ring body, 1121 first gap, 113 second ring body, 1131 second gap, 114 plug-in portion, 115 wire column, 120 conductive slip ring, 121 first connecting wire, 122 second connecting wire, 130 conductive wire, 131 free end, 140 elastic member, 141 clamping portion, 150 wire wheel cover, 151 annular boss, 152 third gap, 153 slot, 160 shell, 161 first avoidance port, 162 second avoidance port, 163 first shell, 164 second shell, 170 mounting frame, 180 connecting piece, 190 wire wheel assembly, 200 three-dimensional molding equipment, 210 base, 211 third avoidance port, 220 lifting mechanism, 221 screw rod, 222 slider, 230 cantilever bracket, 240 molding platform. DETAILED DESCRIPTION

[0035] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0036] Refer to the following Figures 1 to 10 The wire collector 100 and the stereoscopic molding device 200 provided according to some embodiments of the present invention are described. The stereoscopic molding device 200 can be any stereoscopic molding device such as a photocuring 3D printer, a fused deposition type printer, an inkjet printer, etc. The wire collector 100 can be applied to the stereoscopic molding device 200.

[0037] Among them, Fig. 9 and Fig.10 As shown, the three-dimensional molding equipment 200 includes a base 210, a material trough, a lifting mechanism 220, and a molding platform 240. The material trough is used to contain resin. The material trough is placed on the base 210. The lifting mechanism 220 is installed on the base 210. The molding platform 240 is connected to the lifting mechanism 220. The lifting mechanism 220 can drive the molding platform 240 to rise and fall relative to the base 210. Therefore, by utilizing photocuring technology, light of a specific wavelength and intensity is focused on the resin in the material trough, so that the resin is solidified on the molding platform 240. After completing the curing of one layer, the molding platform 240 is driven by the lifting mechanism 220 to move in the vertical direction by the height of a layer, and then another layer is cured, and layers are stacked on the molding platform 240 in sequence to form a three-dimensional entity.

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an embodiment of the first aspect of the utility model provides a wire take-up device 100, which includes: a reel assembly 190; a conductive slip ring 120, which includes a stator portion and a rotor portion, and the rotor portion is connected to the reel assembly 190; a conductive wire 130, which is wound around the reel assembly 190 and electrically connected to the rotor portion, and the conductive wire 130 is provided with a free end 131 which can be extended or retracted relative to the reel assembly 190; an elastic member 140, which is connected to the reel assembly 190, and the elastic member 140 is configured to apply a rotational force to the reel assembly 190 to rotate the reel assembly 190 to retract the extended conductive wire 130; one of the free end 131 and the stator portion is configured to be electrically connected to a control device of a three-dimensional molding device 200, and the other of the free end 131 and the stator portion is configured to be electrically connected to an electronic device of the three-dimensional molding device 200, and the electronic device is configured to be movable relative to the control device.

[0039] The rotor part of the conductive slip ring 120 can rotate relative to the stator part. Since the wire wheel assembly 190 is connected to the rotor part, the rotation of the wire wheel assembly 190 can drive the rotor part to rotate relative to the stator part.

[0040] The conductive wire 130 can be used to transmit electrical energy and / or transmit signals. The conductive wire 130 may include multiple wires, such as a flat wire or a flat wire. The flat wire is also called a flexible printed circuit board, which specifies the rules, line sequence, line color, line number, etc. of the conductive wire 130 according to the industry specifications to which it belongs, and is used for transmitting electrical signals or data in active parts and active areas.

[0041] The stereoscopic molding device 200 includes a control device, which is electrically connected to the lifting mechanism to control the operation of the lifting mechanism 220. It is understandable that the control device can be a master controller of the stereoscopic molding device 200, and the stereoscopic molding device 200 can also include a light source assembly, and the control device can be electrically connected to the light source assembly to control the working state of the light source assembly. Usually, the control device is installed on the base 210, such as the control device is installed inside the base 210.

[0042] The electronic device is a gas detector other than the control device, and the electronic device is configured to be movable relative to the control device of the three-dimensional molding device 200, such as the electronic device can be set on the molding platform 240 and move with the movement of the molding platform 240 relative to the base 210. Or, Fig. 9 and Fig.10 As shown, the three-dimensional molding device 200 also includes a cantilever bracket 230, and the molding platform 240 is connected to the lifting mechanism 220 through the cantilever bracket 230. The electronic device can be set on the cantilever bracket 230, and moves with the movement of the cantilever bracket 230 relative to the base 210. Alternatively, the electronic device can be set on the part where the lifting mechanism 220 is connected to the cantilever bracket 230, and moves with the movement of the movable part of the lifting mechanism relative to the base 210. It can be understood that the electronic device needs to be electrically connected to the control device to transmit electrical signals. Among them, the electronic device can be a sensor, such as a force sensor. The electronic device can also be any other component that needs to move relative to the control device during the working process.

[0043] In this embodiment, the conductive wire 130 is electrically connected to the rotor part of the conductive slip ring 120, and the free end 131 of the conductive wire 130 and one of the stator parts of the conductive slip ring 120 are electrically connected to the control device. The free end 131 of the conductive wire 130 is electrically connected to another electronic device in the stator part of the conductive slip ring 120, so that the stator part and the rotor part of the conductive slip ring 120 can be connected to the electrical device and the control device respectively. At the same time, since the conductive wire 130 is wound on the wire wheel assembly 190, the free end 131 of the conductive wire 130 can be extended or retracted relative to the turntable, so that the conductive wire 130 can meet the connection requirements of the electronic device to be movable relative to the control device. The wire wheel assembly 190 is connected to the rotor part, so that the conductive wire 130 will drive the wire wheel assembly 190 to rotate during the extension process, and then drive the rotor part to rotate relative to the stator part, thereby, the electronic device and the control device can be electrically connected and the electrical signal can be transmitted.

[0044] The elastic member 140 is connected to the wire wheel assembly 190, and the elastic member 140 applies a rotational force to the wire wheel assembly 190 to rotate the wire wheel assembly 190 to retract the extended conductive wire 130. This can avoid the problem of conductive wire 130 accumulation when the control device and the electronic device are approaching each other (such as the molding platform 240 descending), and further avoid the problem of the accumulated conductive wire 130 being entangled together and causing equipment failure. As a result, the reliability of the three-dimensional molding device 200 can be improved, the failure rate can be reduced, and at the same time, the aesthetics and neatness of the appearance of the three-dimensional molding device 200 can be improved.

[0045] In some possible embodiments provided by the present invention, the elastic member 140 may be a constant force spring, which is a special spring characterized in that the elasticity of the spring remains unchanged within a certain range, thereby ensuring the stability and reliability of the device. In this embodiment, the constant force spring may be arranged on one side of the wire wheel assembly 190, and one end of the constant force spring is connected to the wire wheel assembly 190, so that in the process of the free end 131 of the conductive wire 130 extending relative to the wire wheel assembly 190, such as the process of the control device and the electronic device moving away from each other (such as the molding platform 240 moving away from the base 210), the conductive wire 130 is gradually pulled out and drives the wire wheel assembly 190 to rotate, at which time, the constant force spring connected to the wire wheel assembly 190 accumulates force. When the control device and the electronic device approach each other (such as the molding platform 240 moves toward the base 210), the conductive wire 130 will gradually accumulate. Since the constant force spring after storing force releases the stored force, it drives the wire wheel assembly 190 to rotate in the opposite direction, and the accumulated conductive wire 130 can be wound back onto the wire wheel assembly 190, thereby realizing automatic winding of the conductive wire 130. This avoids the accumulation of the conductive wire 130 and can improve the appearance of the three-dimensional molding equipment 200. The appearance is beautiful and neat, and the structure is simple and easy to operate.

[0046] It can be understood that when the reel assembly 190 rotates under the action of the elastic member 140 to wind the extended conductive wire 130 back to the reel assembly 190, the rotation of the reel assembly 190 will drive the rotor part to rotate relative to the stator part. In this process, the electronic device and the control device can be electrically connected and electrical signals can be transmitted.

[0047] Further, in one example, the free end 131 of the conductive wire 130 can be electrically connected to the electronic device, and the stator part can be electrically connected to the control device; in another example, the free end 131 of the conductive wire 130 can be electrically connected to the control device, and the stator part can be electrically connected to the electronic device.

[0048] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, in some possible embodiments provided by the present invention, the stator part is located inside the rotor part, and the reel assembly 190 is sleeved on the outside of the rotor part, that is, the stator part, the rotor part, and the reel assembly 190 are arranged in sequence from the inside to the outside. This layout can reduce the space occupied by the conductive slip ring 120 and the reel assembly 190, meet the design requirements of the wire take-up device 100 with a compact structure and a small size, and further meet the design requirements of the three-dimensional molding equipment 200 with a compact structure and a small size.

[0049] In one example, the rotor part is connected to the reel assembly 190 by an adhesive, thereby ensuring that the rotor part and the reel assembly 190 are reliably connected, so that the rotor part and the reel assembly 190 can rotate synchronously.

[0050] In another example, the rotor portion and the wire wheel assembly 190 are configured to be in surface contact to limit the relative movement of the rotor portion and the wire wheel assembly 190, thereby enabling the rotation of the wire wheel assembly 190 to drive the rotor portion to rotate synchronously.

[0051] Specifically, a first limiting surface may be provided on the outer circumferential surface of the rotor part, and a second limiting surface may be provided on the inner hole wall surface of the wire wheel assembly 190. The first limiting surface and the second limiting surface cooperate to enable the rotor part and the wire wheel assembly 190 to rotate synchronously. For example, the first limiting surface and the second limiting surface may be a planar structure, which is easy to process and assemble, and has a good limiting effect. Specifically, the axial cross section of the rotor part may be D-shaped, and accordingly, the axial cross section of the inner hole of the wire wheel assembly 190 may be D-shaped.

[0052] In another example, the rotor part and the reel assembly 190 are configured to be connected by screws, which can ensure that the rotor part and the reel assembly 190 are reliably connected, so that the rotation of the reel assembly 190 can drive the rotor part to rotate synchronously. At the same time, the rotor part and the reel assembly 190 are connected by screws, so that the rotor part and the reel assembly 190 can be detachably connected, which is convenient for assembly and maintenance.

[0053] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, in some possible embodiments provided by the present invention, the reel assembly 190 includes a reel body 110, a receiving cavity is provided in the reel body 110, a conductive slip ring 120 is located in the receiving cavity, a conductive wire 130 is wound around the reel body 110, a first connecting wire 121 is connected to the rotor part, and a second connecting wire 122 is connected to the stator part; wherein the first connecting wire 121 is passed through the reel body 110 and connected to the conductive wire 130, and the second connecting wire 122 is passed through the reel body 110 and extends to the outside of the reel body 110.

[0054] In this embodiment, the arrangement of the accommodating cavity provides good protection for the conductive slip ring 120, can reduce the possibility of the conductive slip ring 120 being contaminated or hit, is conducive to improving the service life of the conductive slip ring 120, and further improves the reliability of the wire take-up device 100. At the same time, the first connecting wire 121 on the rotor part is passed through the wire wheel body 110 to connect with the conductive wire 130, so that the rotor part and the conductive wire 130 can be electrically connected, and the second connecting wire 122 on the stator part is passed through the wire wheel body 110 and extends to the outside of the wire wheel body 110, so that the stator part can be selectively electrically connected to the control device and the electronic device, with a simple structure and convenient operation. In addition, this wiring method reduces the possibility of the first connecting wire 121 and the second connecting wire 122 being exposed to the outside of the wire wheel assembly 190 and being contaminated or scratched, which is conducive to extending the service life of the first connecting wire 121 and the second connecting wire 122, and improving the reliability of the electrical connection of the wire take-up device 100.

[0055] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in some possible embodiments provided by the utility model, the reel body 110 includes a connecting disk 111, and a first ring body 112 and a second ring body 113 distributed on one side of the connecting disk 111 and coaxially arranged, the first ring body 112 is connected to the rotor part, the second ring body 113 is located on the outside of the first ring body 112, and the conductive wire 130 is wound around the second ring body 113; the reel assembly 190 also includes a reel cover 150, the reel cover 150 is located on the side of the first ring body 112 away from the connecting disk 111 and encloses a accommodating cavity with the first ring body 112.

[0056] That is to say, the accommodating cavity is formed by the reel cover 150 and the reel body 110. Specifically, the reel body 110 may be provided with an accommodating groove with an opening, and the reel cover 150 may be connected to the first ring body 112 of the reel body 110 and cover the opening of the accommodating groove to form the accommodating cavity. Alternatively, the reel body 110 may be provided with a first accommodating groove with an opening, and the reel cover 150 may be provided with a second accommodating groove with an opening, and the reel cover 150 may be connected to the first ring body 112, so that the opening of the first accommodating groove and the opening of the second accommodating groove are connected to form the accommodating cavity. Thus, when the rotor part of the conductive slip ring 120 is connected to the first ring body 112, the conductive slip ring 120 is located in the accommodating cavity, and the first ring body 112 and the reel cover 150 may be used to provide good protection for the conductive slip ring 120. This method can facilitate the assembly of the conductive slip ring 120 and the reel assembly 190. It is understandable that, in some other examples, the accommodating cavity may also be separately opened in the reel body 110, and the reel cover 150 is connected to the reel body 110 and is spaced apart from the accommodating cavity.

[0057] Among them, the second ring body 113 is located outside the first ring body 112, that is, the diameter of the second ring body 113 is larger than the diameter of the first ring body 112. Since the second ring body 113 is used to wind the conductive wire 130 and the diameter of the second ring body 113 is larger, the extension efficiency and winding efficiency of the conductive wire 130 can be improved to meet the higher printing efficiency of the three-dimensional molding equipment 200.

[0058] Among them, Figure 8 As shown, a first notch 1121 is provided on the first ring body 112, a second notch 1131 is provided on the second ring body 113, the conductive wire 130 is wound around the second ring body 113, and the rotor part is located inside the first ring body 112, thereby, the first connecting wire 121 on the rotor part is passed through the first notch 1121, and the second notch 1131 is connected to the conductive wire 130, thereby, the electrical connection between the conductive wire 130 and the rotor part can be achieved, and the reliability of the connection between the conductive wire 130 and the first connecting wire 121 of the rotor part can be ensured.

[0059] It is understandable that the conductive wire 130 wound around the second ring body 113 can also be connected to the first connecting wire 121 located in the first ring body 112 through the second notch 1131 and the first notch 1121. Alternatively, a wire is used as a new connecting wire, and the wire is passed through the first notch 1121 and the second notch 1131 to connect the conductive wire 130 and the first connecting wire 121.

[0060] Furthermore, the connection disk 111 is provided with a wire post 115 between the first notch 1121 and the second notch 1131. The provision of the wire post 115 has a certain guiding effect on the first connection line 121 between the first notch 1121 and the second notch 1131, reduces the possibility of the first connection line 121 being entangled between the first notch 1121 and the second notch 1131, and improves the smoothness of the first connection line 121. Specifically, the number of the wire posts 115 can be one, two, three or more.

[0061] like Figure 3 , Figure 6 , Figure 7 As shown, in the above embodiment, a connection port 1111 is provided at the end of the first ring body 112 away from the reel cover 150, and the second connection line 122 on the stator part is passed through the second connection port 1111 and can extend to the outside of the reel body 110 to facilitate the electrical connection of the second connection line 122 with the control device or electronic device.

[0062] Furthermore, the diameter of the connection port 1111 is smaller than the diameter of the rotor part, and the rotor part abuts against the first ring body 112 on the circumferential side of the connection port 1111. In this way, during the assembly of the conductive slip ring 120 and the reel body 110 of the reel assembly 190, the rotor part can be limited by the first ring body 112 on the circumferential side of the connection port 1111, thereby achieving pre-positioning of the rotor part and the reel body 110 during assembly, and improving the assembly accuracy and efficiency of the guide slip ring and the reel assembly 190. The abutment of the rotor part against the first ring body 112 on the circumferential side of the connection port 1111 may be partial abutment, such as a screw (or a screw) pressing the outer peripheral side of the rotor part against the peripheral side of the connection port 1111 for fixing.

[0063] It is understandable that, during the assembly process, the conductive slip ring 120 may be connected to the reel body 110 first, and then the reel cover 150 may be connected to the reel body 110 .

[0064] like Figure 3 and Figure 4 As shown, in some possible embodiments provided by the utility model, an annular boss 151 is provided on the side of the reel cover 150 facing the connecting disk 111, and the first ring body 112 is inserted into the annular boss 151. Thus, the annular boss 151 can be used to pre-position the assembly of the reel cover 150 and the first ring body 112, thereby improving the assembly accuracy and efficiency of the reel cover 150 and the reel assembly 190, thereby improving the assembly accuracy and efficiency of the wire take-up device 100.

[0065] Among them, a third notch 152 for the first connecting wire 121 to pass through is provided at a position opposite to the second notch 1131 of the annular boss 151, so that the first connecting wire 121 passes through the first notch 1121, the third notch 152, and the second notch 1131 to connect with the conductive wire 130 wound on the second ring body 113, thereby realizing electrical connection between the conductive wire 130 and the rotor part. This arrangement enables the first connecting wire 121 to connect with the conductive wire 130 through the notches on the reel body 110 and the reel cover, that is, the first connecting wire 121 will not be exposed outside the reel assembly 190, reducing the possibility of the first connecting wire 121 being scratched, which is conducive to improving the reliability of the electrical connection between the first connecting wire 121 and the conductive wire 130.

[0066] like Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, in some possible embodiments provided by the present invention, the connection disk 111 extends to the outer circumference of the second ring body 113, the wire wheel cover 150 extends to the outer circumference of the second ring body 113, and the conductive wire 130 wound on the second ring body 113 is located between the connection disk 111 and the wire wheel cover 150. Therefore, the conductive wire 130 wound on the second ring body 113 can be limited by the connection disk 111 and the wire wheel cover 150 to prevent the conductive wire 130 from falling off the second ring body 113, thereby improving the reliability and stability of the conductive wire 130 wound on the second ring body 113.

[0067] Specifically, the height of the connecting disk 111 extending to the outer peripheral side of the second ring body 113 and the height of the reel cover 150 extending to the outer peripheral side of the second ring body 113 can be reasonably set according to the total length of the conductive wire 130. On the basis that the connecting disk 111 and the reel cover 150 can reliably limit the conductive wire 130 wound on the second ring body 113, the diameters of the connecting disk 111 and the reel cover 150 can be minimized to meet the design requirements of the wire take-up device 100 with a compact structure and a small size.

[0068] like Figure 3 , Figure 4 and Figure 8 As shown, in some possible embodiments provided by the present invention, one of the reel cover 150 and the reel body 110 is provided with a plurality of plug-in portions 114, and the other is provided with a slot 153 for accommodating the plug-in portion 114. Thus, by using the plug-in portion 114 and the slot 153, the reel cover 150 and the reel body 110 can be conveniently and quickly detachably connected, which is convenient for the assembly and disassembly of the take-up device 100 and improves the assembly efficiency and maintenance efficiency of the take-up device 100. At the same time, by connecting the reel cover 150 and the reel body 110 together using the plug-in portion 114 and the slot 153, the reel cover 150 and the reel body 110 can be kept in synchronous motion.

[0069] Specifically, the plug-in portion 114 can be provided on the bobbin cover 150, and the slot 153 can be provided on the connection disk 111 of the bobbin body 110, or the plug-in portion 114 can be provided on the connection disk 111 of the bobbin body 110, and the slot 153 can be provided on the bobbin cover 150. The number of the plug-in portion 114 and the slot 153 can be one, two, three, or other numbers.

[0070] Specifically, Figure 8 As shown, the plug-in portion 114 is disposed on the connecting disk 111 of the spool body 110. Figure 3 and Figure 4 As shown, the slot 153 is provided on the wheel cover 150, and the number of the plug-in parts 114 is three.

[0071] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some possible embodiments provided by the present invention, the wire take-up device 100 also includes: a shell 160, a reel assembly 190, a conductive slip ring 120, and an elastic member 140 are installed inside the shell 160, and the reel assembly 190 is rotatable relative to the shell 160. The setting of the shell 160 has a good protective effect on the reel assembly 190, the conductive slip ring 120, and the elastic member 140, and can reduce the possibility of the reel assembly 190, the conductive slip ring 120, and the elastic member 140 being contaminated or damaged by collision, reduce the failure rate of the wire take-up device 100, and increase the service life of the wire take-up device 100.

[0072] Among them, the shell 160 is provided with a first avoidance opening 161, and the free end 131 of the conductive wire 130 is passed through the first avoidance opening 161 and extends to the outside of the shell 160, so that the free end 131 can be selectively electrically connected to the control device of the three-dimensional molding equipment 200, or to the electronic device.

[0073] The shell 160 is also provided with a second avoidance opening 162 , and the second connecting wire 122 on the stator part is passed through the second avoidance opening 162 and extends to the outside of the shell 160 , so that the stator part can be selectively electrically connected to the electronic device, or electrically connected to the control device of the three-dimensional molding equipment 200 .

[0074] Therefore, by providing the first avoidance opening 161 and the second avoidance opening 162 on the housing 160 , the free end 131 of the conductive wire 130 and the stator portion can be electrically connected to the control device and the electronic device respectively, with a simple structure and convenient operation.

[0075] Specifically, the first avoidance opening 161 and the second avoidance opening 162 may be located on the same side of the housing 160, or may be located on different sides of the housing 160. Figure 1 As shown, the housing 160 is rectangular, and the first avoidance opening 161 and the second avoidance opening 162 are located on two adjacent sides of the housing 160. Specifically, the positions of the first avoidance opening 161 and the second avoidance opening 162 can be reasonably set according to the installation position of the wire take-up device 100, the setting position of the electronic device, and the setting position of the control device.

[0076] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, in some possible embodiments provided by the present invention, the shell 160 includes a first shell 163 and a second shell 164 that are detachably connected, the first shell 163 and the second shell 164 are connected and enclose a movement space, and the wheel assembly 190 is located in the movement space and can rotate relative to the shell 160.

[0077] That is to say, the first shell 163 and the second shell 164 not only provide good protection for the reel assembly 190, the conductive slip ring 120, and the elastic member 140 located therein, but also the first shell 163 and the second shell 164 can limit the movement space of the reel assembly 190, thereby reducing the possibility of shaking of the reel assembly 190 during rotation, and improving the stability of the movement of the reel assembly 190 relative to the shell 160, thereby improving the stability of the extension or retraction of the conductive wire 130, which is beneficial to improving the stability and accuracy of the transmission of electrical signals by electronic components and control devices.

[0078] Furthermore, if Figure 3 and Figure 4 As shown, the cable take-up device 100 further includes a connecting member 180, and the first housing 163 and the second housing 164 can be connected by the connecting member 180, wherein the connecting member 180 can be a bolt structure, a locking structure, or other structures. Figure 3 As shown, the connecting member 180 includes a plurality of bolts, and the first shell 163 and the second shell 164 are connected by the plurality of bolts.

[0079] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some possible embodiments provided by the present invention, the wire take-up device 100 further includes: a mounting frame 170, which is connected to the outside of the housing 160, and the mounting frame 170 is configured to be connected to the component to be installed, so that the wire take-up device 100 can be installed as a whole on the component to be installed through the mounting frame 170. Specifically, the component to be installed can be the housing 160 of the three-dimensional molding device 200, a partial structure of the lifting mechanism 220, the molding platform 240, or the cantilever bracket 230 connecting the molding platform 240 and the lifting mechanism 220. Specifically, the mounting frame 170 can be reliably connected to the component to be installed by bolts, locking structures, etc.

[0080] like Figure 3 and Figure 4 As shown, in some possible embodiments provided by the present invention, a connecting portion is provided inside the housing 160, and one end of the elastic member 140 is connected to the connecting portion, thereby enabling the elastic member 140 to be reliably and stably fixed inside the housing 160. A clamping portion 141 is provided at the other end of the elastic member 140, and a slot for accommodating the clamping portion 141 is provided on the reel assembly 190, thereby enabling the other end of the elastic member 140 to be reliably connected to the reel assembly 190 by inserting the clamping portion 141 into the slot, thereby enabling the reel assembly 190 to rotate to store force in the elastic member 140, and when the elastic member 140 releases the stored force, it can drive the reel assembly 190 to rotate.

[0081] It is understandable that the elastic member 140 and the connecting portion may be connected via a snap-fit ​​structure, a mortise and tenon structure, a threaded structure, a limiting structure, or other structures, and the present invention does not make any specific limitation on this.

[0082] Among them, Figure 3 and Figure 4 As shown, the clamping portion 141 is I-shaped, E-shaped, M-shaped, or V-shaped, thereby improving the reliability and stability of the connection between the clamping portion 141 and the slot, so that the other end of the elastic member 140 is reliably connected to the reel assembly 190.

[0083] Specifically, a card slot may be provided on the reel body 110 of the reel assembly 190 , or a card slot may be provided on the reel cover 150 of the reel body 110 .

[0084] like Fig. 9 and Fig.10 As shown, the second aspect of the present invention provides a stereoscopic molding device 200, comprising: a control device, an electronic device, and a wire take-up device 100 of any embodiment of the first aspect, wherein the electronic device is configured to be movable relative to the control device. Since the stereoscopic molding device 200 includes the wire take-up device 100 of any embodiment of the first aspect, it has all the technical effects of the aforementioned wire take-up device 100, which will not be described in detail here.

[0085] In some possible embodiments provided by the present invention, the three-dimensional molding device 200 further includes: a base 210, a lifting mechanism 220, a cantilever bracket 230 and a molding platform 240, the lifting mechanism 220 is connected to the base 210, the molding platform 240 is connected to the lifting mechanism 220 through the cantilever bracket 230, and the lifting mechanism 220 is configured to drive the cantilever bracket 230 to drive the molding platform 240 to approach or move away from the base 210. Among them, the control device is arranged on the base 210, the electronic device is a sensor, and the sensor is arranged on the cantilever bracket 230. The sensor can detect the weight on the molding platform 240, or can detect the distance between the molding platform 240 and the screen, etc., wherein the base 210 is provided with a third avoidance opening 211 for avoiding the conductive wire 130. It can be understood that when the wire take-up device 100 electrically connects the control device and the sensor, the control device can control other mechanisms of the three-dimensional molding device according to the detection signal or detection result of the sensor.

[0086] In one example, the sensor may be a pressure sensor, which is used to detect the weight on the molding platform 240. When the weight on the molding platform 240 reaches a preset requirement, it indicates that the weight of the printed model is too heavy and falls off the molding platform 240 due to the resin that continues to solidify on the molding platform 240. Therefore, the control device may control the three-dimensional molding equipment 200 to stop working according to the detection signal of the pressure sensor, so as to reduce the possibility of the printed model falling off the molding platform 240 and being damaged.

[0087] In another example, the sensor may be a distance sensor. The three-dimensional molding device 200 further includes a screen disposed on the base 210 and a leveling device connected to the molding platform 240. The distance sensor is used to detect the distance between the molding platform 240 and the screen. There are multiple distance sensors. Through the detection results of the multiple distance sensors, it can be determined whether the molding platform 240 is parallel to the screen. Thus, the control device can control the leveling device to perform a leveling operation on the molding platform 240 according to the detection results of the distance sensor to improve the printing quality.

[0088] It is understandable that the sensor may also be other types of sensors, which will not be described in detail in the present invention. Fig. 9 and Fig.10 As shown, the wire take-up device 100 is installed inside the base 210, that is, the mounting frame 170 of the wire take-up device 100 is connected to the base 210 to accommodate the housing 160 of the wire take-up device 100 inside the base 210. This arrangement can meet the design requirements of the compact structure of the stereoscopic molding device 200 and improve the neatness and aesthetics of the appearance of the stereoscopic molding device 200. In this case, the free end 131 of the conductive wire 130 passes through the third avoidance opening 211 from the inside of the base 210 and is connected to the sensor, and the second connecting wire 122 of the stator part is electrically connected to the control device inside the base 210.

[0089] In another example, the wire take-up device 100 is connected to the cantilever bracket 230 or is connected to the part of the cantilever bracket 230 connected to the lifting mechanism 220, that is, the wire take-up device 100 is located outside the housing 160 and is located on a mechanism that is movable relative to the base 210. At this time, the free end 131 of the conductive wire 130 passes through the third avoidance opening 211 on the base 210 and is electrically connected to the control device inside the base 210, and the second connecting wire 122 of the stator part is electrically connected to the sensor. Specifically, in this case, the mounting frame 170 of the wire take-up device 100 can be connected to the cantilever bracket 230 to fix the wire take-up device 100 on the cantilever bracket 230, and then the second connecting wire 122 of the stator part is electrically connected to the sensor. Alternatively, the wire take-up device 100 may be installed on the lifting mechanism 220 and located near the cantilever bracket 230, such as the mounting frame 170 of the wire take-up device 100 is connected to the part of the lifting mechanism 220 that connects the cantilever bracket 230. Specifically, the lifting mechanism 220 may include a screw rod 221 and a slider 222. The slider 222 is sleeved on the screw rod 221 and can rise or fall along the screw rod 221. The cantilever bracket 230 is connected to the slider 222. At this time, the mounting frame 170 of the wire take-up device 100 may be connected to the slider 222. Since the slider 222 moves synchronously with the cantilever bracket 230, the stator part located on the slider 222 can be reliably connected to the sensor located on the cantilever bracket 230 through the second connecting line 122.

[0090] It is understandable that in some other examples, the sensor can also be directly installed on the forming platform 240, the wire take-up device 100 can also be installed inside the base 210, or the wire take-up device 100 is connected to the cantilever bracket 230 or the lifting mechanism 220 is connected to the part of the cantilever bracket 230, and the connection method of the free end 131 of the conductive wire 130 and the stator part with the control device and the sensor is the same as the aforementioned embodiment and will not be repeated.

[0091] Specifically, Figures 1 to 10 As shown, the utility model also provides the following implementation modes:

[0092] Reference numeral 1, a wire take-up device 100, applied to a stereoscopic molding device 200, the wire take-up device 100 comprises: a reel assembly 190; a conductive slip ring 120, the conductive slip ring 120 comprises a stator portion and a rotor portion, the rotor portion being connected to the reel assembly 190; a conductive wire 130, the conductive wire 130 being wound around the reel assembly 190 and electrically connected to the rotor portion, the conductive wire 130 being provided with a free end 131 which can be extended or retracted relative to the reel assembly 190; an elastic member 140, the elastic member 140 being connected to the reel assembly 190, the elastic member 140 being configured to apply a rotational force to the reel assembly 190 so that the reel assembly 190 rotates to retract the extended conductive wire 130; one of the free end 131 and the stator portion being configured to be electrically connected to a control device of the stereoscopic molding device 200, the other of the free end 131 and the stator portion being configured to be electrically connected to an electronic device of the stereoscopic molding device 200, the electronic device being configured to be movable relative to the control device.

[0093] 2. According to the wire take-up device 100 of label 1, the elastic member 140 is a constant force spring; the stator part is located inside the rotor part, and the reel assembly 190 is sleeved on the outside of the rotor part; wherein the rotor part and the reel assembly 190 are connected by an adhesive; or the rotor part and the reel assembly 190 are configured to be in surface contact to limit the relative movement of the rotor part and the reel assembly 190; or the rotor part and the reel assembly 190 are configured to be connected by screws.

[0094] 3. According to the wire take-up device 100 of label 1, the reel assembly 190 includes a reel body 110, a housing cavity for accommodating a conductive slip ring 120 is provided in the reel body 110, a conductive wire 130 is wound around the reel body 110, a first connecting wire 121 is connected to the rotor part, and a second connecting wire 122 is connected to the stator part; wherein the first connecting wire 121 is passed through the reel body 110 and connected to the conductive wire 130, and the second connecting wire 122 is passed through the reel body 110 and extends to the outside of the reel body 110.

[0095] 4. According to the wire take-up device 100 of reference numeral 3, the wire reel body 110 includes a connecting disk 111, and a first ring body 112 and a second ring body 113 coaxially arranged on one side of the connecting disk 111, the first ring body 112 is connected to the rotor part, the second ring body 113 is located outside the first ring body 112, and the conductive wire 130 is wound around the second ring body 113; the wire reel assembly 190 also includes a wire reel cover 150, which is located on the first ring body 112 away from the connecting disk 111. One side of the receiving plate 111 is combined with the first ring body 112 to form a accommodating cavity; wherein, a first notch 1121 is opened on the first ring body 112, and a second notch 1131 is opened on the second ring body 113. The first connecting line 121 is passed through the first notch 1121, and the second notch 1131 is connected to the conductive line 130; a connecting port 1111 is provided at the end of the first ring body 112 away from the wire wheel cover 150, and the second connecting line 122 is passed through the connecting port 1111.

[0096] 5. According to the wire take-up device 100 of reference numeral 4, the diameter of the connection port 1111 is smaller than the diameter of the rotor portion, and the rotor portion abuts against the first ring body 112 on the peripheral side of the connection port 1111 .

[0097] 6. According to the wire take-up device 100 labeled 4, an annular boss 151 is provided on the side of the reel cover 150 facing the connecting disk 111, the first ring body 112 is inserted into the inside of the annular boss 151, and a third notch 152 for the first connecting line 121 to pass through is provided at a position opposite to the annular boss 151 and the second notch 1131.

[0098] 7. According to the wire take-up device 100 of label 4, the connecting disk 111 extends to the outer peripheral side of the second ring body 113, the reel cover 150 extends to the outer peripheral side of the second ring body 113, and the conductive wire 130 wound on the second ring body 113 is located between the connecting disk 111 and the reel cover 150.

[0099] 8. According to the wire take-up device 100 of reference number 4, a plurality of plug-in portions 114 are provided on one of the reel cover 150 and the reel body 110, and a slot 153 for accommodating the plug-in portions 114 is provided on the other one.

[0100] 9. The wire take-up device 100 according to label 1 also includes: a shell 160, a reel assembly 190, a conductive slip ring 120, and an elastic member 140 installed inside the shell 160, the reel assembly 190 is rotatable relative to the shell 160, and the shell 160 is provided with a first avoidance opening 161 and a second avoidance opening 162; wherein the free end 131 is passed through the first avoidance opening 161 and extends to the outside of the shell 160, and the second connecting line 122 on the stator part is passed through the second avoidance opening 162 and extends to the outside of the shell 160.

[0101] 10. According to the wire take-up device 100 of label 9, the housing 160 includes a first housing 163 and a second housing 164 that are detachably connected, the first housing 163 and the second housing 164 are connected and enclose a movement space, and the reel assembly 190 is located in the movement space and is rotatable relative to the housing 160.

[0102] 11. The wire take-up device 100 according to label 9 further includes: a mounting bracket 170 connected to the outside of the housing 160, and the mounting bracket 170 is configured to be connected to a component to be installed.

[0103] 12. According to the wire take-up device 100 with reference number 9, a connecting portion is provided inside the shell 160, one end of the elastic member 140 is connected to the connecting portion, a clamping portion 141 is provided at the other end of the elastic member 140, and a clamping groove for accommodating the clamping portion 141 is provided on the reel assembly 190; wherein the clamping portion 141 is I-shaped, E-shaped, M-shaped, or V-shaped.

[0104] Specifically, the utility model also provides the following implementation modes:

[0105] 13. A three-dimensional molding device 200, comprising: a control device, an electronic component, and a wire take-up device 100 as described in any one of the numbers 1 to 12, wherein the electronic component is configured to be movable relative to the control device.

[0106] 14. The three-dimensional molding device 200 according to number 13 further includes: a base 210, a lifting mechanism 220, a cantilever bracket 230 and a molding platform 240, the lifting mechanism 220 is connected to the base 210, the molding platform 240 is connected to the lifting mechanism 220 through the cantilever bracket 230, the lifting mechanism 220 is configured to drive the cantilever bracket 230 to drive the molding platform 240 to move closer to or away from the base 210, the control device is arranged on the base 210, the electronic device is a sensor, and the sensor is arranged on the cantilever bracket 230 or the molding platform On the platform 240, the base 210 is provided with a conductive wire 130 for avoiding the wire take-up device 100 to drive a third avoidance opening 211; wherein, the wire take-up device 100 is installed inside the base 210, the free end 131 is passed through the third avoidance opening 211 and is connected to the sensor, and the stator part is electrically connected to the control device; or the wire take-up device 100 is connected to the cantilever bracket 230 or the lifting mechanism 220 is connected to the part of the cantilever bracket 230, the free end 131 is passed through the third avoidance opening 211 and is electrically connected to the control device, and the stator part is electrically connected to the sensor.

[0107] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the terms "upper" and "lower" indicate positions or positional relationships based on the positions or positional relationships described in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0108] For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wire take-up device, characterized in that: Applied to stereoscopic molding equipment, the wire take-up device includes: Wire reel assembly; A conductive slip ring, the conductive slip ring comprising a stator part and a rotor part, the rotor part being connected to the wire wheel assembly; A conductive wire, the conductive wire is wound around the wire wheel assembly and electrically connected to the rotor portion, and the conductive wire is provided with a free end that can be extended or retracted relative to the wire wheel assembly; an elastic member, the elastic member being connected to the wire wheel assembly, the elastic member being configured to apply a rotational force to the wire wheel assembly so as to rotate the wire wheel assembly to retract the extended conductive wire; One of the free end and the stator portion is configured to be electrically connected to a control device of the stereolithography apparatus, and the other of the free end and the stator portion is configured to be electrically connected to an electronic device of the stereolithography apparatus, and the electronic device is configured to be movable relative to the control device.

2. The wire take-up device according to claim 1, characterized in that: The elastic member is a constant force spring; The stator part is located inside the rotor part, and the wire wheel assembly is sleeved outside the rotor part; Wherein, the rotor part is connected to the wire wheel assembly by an adhesive; or The rotor part and the wire wheel assembly are configured to be in surface contact so as to limit the relative movement between the rotor part and the wire wheel assembly; or The rotor portion and the wire wheel assembly are configured to be connected by screws.

3. The wire take-up device according to claim 1, characterized in that: The reel assembly comprises a reel body, a receiving cavity for receiving the conductive slip ring is provided in the reel body, the conductive wire is wound around the reel body, a first connecting wire is connected to the rotor part, and a second connecting wire is connected to the stator part; Wherein, the first connecting line is passed through the wire wheel body and connected to the conductive line, and the second connecting line is passed through the wire wheel body and extends to the outside of the wire wheel body.

4. The wire take-up device according to claim 3, characterized in that: The wire wheel body includes a connecting disk, and a first ring body and a second ring body coaxially arranged on one side of the connecting disk, wherein the first ring body is connected to the rotor part, the second ring body is located outside the first ring body, and the conductive wire is wound around the second ring body; The wire wheel assembly further comprises a wire wheel cover, which is located at a side of the first ring body away from the connecting disk and encloses the first ring body to form the accommodating cavity; The first ring body is provided with a first notch, the second ring body is provided with a second notch, the first connecting wire is passed through the first notch, and the second notch is connected to the conductive wire; The end of the first ring body away from the wire wheel cover is provided with a connection port, and the second connection line is passed through the connection port.

5. The wire take-up device according to claim 4, characterized in that: The diameter of the connection port is smaller than the diameter of the rotor portion, and the rotor portion abuts against the first ring body on the peripheral side of the connection port.

6. The wire take-up device according to claim 4, characterized in that: An annular boss is provided on one side of the wire wheel cover facing the connecting disk, the first ring body is inserted inside the annular boss, and a third notch for the first connecting wire to pass through is provided at a position of the annular boss opposite to the second notch.

7. The wire take-up device according to claim 4, characterized in that: The connection disk extends to the outer circumference of the second ring body, the wire wheel cover extends to the outer circumference of the second ring body, and the conductive wire wound on the second ring body is located between the connection disk and the wire wheel cover.

8. The wire take-up device according to claim 4, characterized in that: One of the reel cover and the reel body is provided with a plurality of plug-in parts, and the other is provided with a slot for accommodating the plug-in parts.

9. The wire take-up device according to claim 1, characterized in that: Also includes: A housing, wherein the wire wheel assembly, the conductive slip ring, and the elastic member are installed inside the housing, the wire wheel assembly is rotatable relative to the housing, and the housing is provided with a first avoidance opening and a second avoidance opening; The free end is passed through the first avoidance opening and extends to the outside of the shell, and the second connecting line on the stator part is passed through the second avoidance opening and extends to the outside of the shell.

10. The wire take-up device according to claim 9, characterized in that: The housing comprises a first housing and a second housing which are detachably connected, the first housing and the second housing are connected and enclose a movement space, and the wire wheel assembly is located in the movement space and is rotatable relative to the housing.

11. The wire take-up device according to claim 9, characterized in that: Also includes: The mounting frame is connected to the outside of the shell, and the mounting frame is configured to be connected to the component to be mounted.

12. The wire take-up device according to claim 9, characterized in that: A connecting portion is provided inside the housing, one end of the elastic member is connected to the connecting portion, a clamping portion is provided at the other end of the elastic member, and a clamping groove for accommodating the clamping portion is provided on the wire wheel assembly; Wherein, the clamping portion is I-shaped, E-shaped, M-shaped, or V-shaped.

13. A three-dimensional forming device, characterized in that: include: A control device, an electronic component, and a wire take-up device as claimed in any one of claims 1 to 12, wherein the electronic component is configured to be movable relative to the control device.

14. The three-dimensional forming device according to claim 13, characterized in that: Also includes: A base, a lifting mechanism, a cantilever bracket and a molding platform, wherein the lifting mechanism is connected to the base, and the molding platform is connected to the lifting mechanism through the cantilever bracket, and the lifting mechanism is configured to drive the cantilever bracket to drive the molding platform to approach or move away from the base, the control device is arranged on the base, the electronic device is a sensor, and the sensor is arranged on the cantilever bracket or the molding platform, and the base is provided with a third avoidance opening for avoiding the conductive wire of the wire take-up device; Wherein, the wire take-up device is installed inside the base, the free end is passed through the third avoidance opening and connected to the sensor, and the stator part is electrically connected to the control device; or The wire take-up device is connected to the cantilever bracket or the part of the lifting mechanism connected to the cantilever bracket, the free end is passed through the third avoidance opening and is electrically connected to the control device, and the stator part is electrically connected to the sensor.

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