Adjusting device and three-dimensional printing equipment

Abstract

The utility model discloses an adjusting device and three-dimensional printing equipment, which mainly applies external force to a rotating wheel assembly by arranging a force applying piece, so that the external force applied to a transmission belt by the rotating wheel assembly is within a preset range, the tensioning degree of the transmission belt is moderate, and the transmission performance is ensured. According to the main technical scheme of the utility model, the adjusting device comprises a fixing piece and a fixing piece, wherein the fixing piece is fixed with the position of a main body of the three-dimensional printing equipment; the rotating wheel assembly is used for being connected with a transmission belt; the force applying piece is connected with the fixing piece and the rotating wheel assembly, and the force applying piece is used for applying external force to the rotating wheel assembly; and the fastening piece is used for being connected with the fixing piece and the rotating wheel assembly and used for locking the relative position of the fixing piece and the rotating wheel assembly. The tensioning device is mainly used for tensioning the transmission belt.

Description

Technical Field

[0001] The utility model relates to the technical field of additive manufacturing, in particular to an adjusting device and three-dimensional printing equipment. Background Art

[0002] In 3D printing equipment, a driving mechanism with a transmission belt is usually provided to move functional parts such as a printing platform or a print head module. The transmission belt needs to be installed when the printing equipment is assembled, and the tension of the transmission belt needs to be adjusted. In addition, the transmission belt tends to stretch after long-term use, and the tension of the transmission belt needs to be re-adjusted to ensure the transmission effect of the transmission belt.

[0003] In the prior art, when installing or adjusting the transmission belt, it is necessary to judge the tension of the transmission belt through experience. For example, the patent with publication number CN207403181 U discloses a 3D printer synchronous belt tensioning device, which adjusts the height of the tensioning idler in the oblong hole by adjusting the bolt, or adjusts the height of the tensioning idler by turning the adjustment handle. The adjustment method relies on subjective judgment. When there is insufficient experience, the tension of the transmission belt is difficult to control, resulting in the transmission performance of the transmission belt being affected. Excessive tension will also cause accelerated wear of the transmission belt or the drive mechanism connected to the transmission belt. Utility Model Content

[0004] In view of this, in order to solve at least one of the above technical problems, the utility model provides an adjustment device and a three-dimensional printing 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 an adjustment device, which is applied to the tensioning of a transmission belt 10 in a three-dimensional printing device, and the adjustment device includes:

[0007] A fixing part, wherein the fixing part is fixed to the main body of the three-dimensional printing device;

[0008] A rotating wheel assembly, the rotating wheel assembly is used to connect the transmission belt;

[0009] A force applying member, the force applying member is respectively connected to the fixing member and the rotating wheel assembly, and is used to apply an external force to the rotating wheel assembly;

[0010] The fastener is used to connect with the fixing member and the rotating wheel assembly, and is used to lock the relative position of the fixing member and the rotating wheel assembly.

[0011] On the other hand, the utility model also provides a three-dimensional printing device, comprising any of the aforementioned adjustment devices.

[0012] Among them, the 3D printing equipment also includes:

[0013] Main body, driving mechanism, transmission belt and functional parts;

[0014] The driving mechanism and the adjusting device are both connected to the main body, the transmission belt is wound around the driving mechanism and the rotating wheel assembly, and the functional part is connected to the transmission belt;

[0015] The driving mechanism is used to drive the transmission belt to drive the functional parts to move.

[0016] The utility model proposes an adjustment device and a three-dimensional printing device, which mainly applies an external force to the rotating wheel assembly by setting a force-applying member, so that the external force applied by the rotating wheel assembly to the transmission belt is within a preset range, so that the tension of the transmission belt is moderate, and the transmission performance is guaranteed. In the prior art, when installing or adjusting the transmission belt, it is necessary to judge the tension of the transmission belt through experience. When there is insufficient experience, the tension of the transmission belt is difficult to control, resulting in the transmission performance of the transmission belt being affected. Excessive tension will also cause accelerated wear. Compared with the prior art, in the present application document, a transmission belt is wound around the rotating wheel assembly, and the force-applying member and the transmission belt apply mutually balanced external forces to the rotating wheel assembly. The force applied by the force-applying member is within a preset range, so that the tension of the transmission belt is within a preset range, and then the tension is controlled, so that the transmission belt is accurately transmitted without slipping or losing steps, and mechanical wear of the synchronous wheel and the like caused by excessive tension is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a first adjustment device provided by an embodiment of the utility model at a first viewing angle;

[0018] Figure 2 A schematic structural diagram of a first adjustment device provided by an embodiment of the utility model at a second viewing angle;

[0019] Figure 3 A schematic diagram of the structure of the first adjustment device provided by an embodiment of the utility model at a third viewing angle;

[0020] Figure 4 A schematic structural diagram of a first adjusting device provided by an embodiment of the utility model at a fourth viewing angle;

[0021] Figure 5 for Figure 4 A schematic cross-sectional view of the first adjusting device at the initial position at AA shown in FIG.

[0022] Figure 6 for Figure 4 A schematic cross-sectional view of the first adjusting device at AA in the working position shown in FIG.

[0023] Figure 7A schematic diagram of the explosion structure of the first regulating device provided in the embodiment of the utility model;

[0024] Figure 8 A schematic structural diagram of a second adjustment device provided by an embodiment of the utility model at a first viewing angle;

[0025] Fig. 9 A schematic structural diagram of a second adjustment device provided by an embodiment of the utility model at a second viewing angle;

[0026] Fig.10 A schematic diagram of the structure of the second adjustment device provided by the embodiment of the utility model at a third viewing angle;

[0027] Fig.11 A schematic diagram of the structure of the second adjustment device provided by an embodiment of the utility model at a fourth viewing angle;

[0028] Fig.12 for Fig. 9 A schematic cross-sectional view of the second adjusting device at position BB in the initial position shown in FIG.

[0029] Fig.13 for Fig. 9 A schematic cross-sectional view of the second adjusting device at BB in the working position shown in FIG.

[0030] Fig.14 for Fig.10 A schematic cross-sectional view of the structure of the second regulating device at CC shown in FIG.

[0031] Fig.15 A schematic diagram of the explosion structure of the second regulating device provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0032] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the present invention, the specific implementation method, structure, characteristics and effects of the regulating device proposed by the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0033] In order to achieve the above-mentioned purpose, the present invention mainly provides the following technical solutions:

[0034] On the one hand, if Figure 1-4 As shown, the utility model provides an adjustment device, which is applied to the tensioning of the transmission belt 10 in the three-dimensional printing device, and the adjustment device includes:

[0035] A fixing member 100, the fixing member 100 is fixed to a main body of the three-dimensional printing device;

[0036] A rotating wheel assembly 200, the rotating wheel assembly 200 is used to connect the transmission belt 10;

[0037] A force applying member 300, the force applying member 300 is connected to the fixing member 100 and the rotating wheel assembly 200 respectively, and the force applying member 300 is used to apply an external force to the rotating wheel assembly 200;

[0038] The fastener 400 is used to connect with the fixing member 100 and the rotating wheel assembly 200 to lock the relative position of the fixing member 100 and the rotating wheel assembly 200 .

[0039] The transmission belt 10 can be in various forms, such as a transmission belt 10 made of flexible materials, such as a belt or a rubber belt, or the transmission belt 10 can also be a chain transmission belt 10 composed of a plurality of connecting blocks hinged in sequence. Regardless of the structure of the transmission belt 10, it will face the problem of adjusting the tension for the first time and re-adjusting the tension when it is loose after long-term use. The adjustment device is used to adjust the tension of the transmission belt 10 to a moderate level. The adjustment device can be set at any position to ensure that the transmission belt 10 can be wound around the rotating wheel assembly 200, such as being arranged relative to the motor of the driving mechanism of the three-dimensional printing device at a certain interval, and the rotating wheel assembly 200 is directly used as a synchronous wheel, or, in an embodiment in which the driving mechanism includes a plurality of synchronous wheels, the rotating wheel assembly 200 of the adjustment device can be located between any two synchronous wheels. Or there can be other settings, which will not be listed one by one. The fixing member 100 can be fixed to the main body of the three-dimensional printing device, such as by bolt connection, or can be integrally formed with the main body of the three-dimensional printing device, such as the base. Alternatively, the fixing member 100 may also be fixed by an additional fixing member, and the fixing member 100 may be fixed relative to the main body of the three-dimensional printing device. The rotating wheel assembly 200 and the fixing member 100 may have a variety of positional relationships, such as the fixing member 100 may include a receiving cavity, and the rotating wheel assembly 200 extends into the receiving cavity, or the rotating wheel assembly 200 and the fixing member 100 may not have a direct connection relationship, and only rely on the force applying member 300 and the fastener 400 for support.

[0040] The tension of the transmission belt 10 is measured by the tension, and when the transmission belt 10 is connected or wound around the rotating wheel assembly 200, the tension acts on the rotating wheel assembly 200 in the form of a pulling force. The stronger the tension of the transmission belt 10, that is, the tighter the transmission belt 10, the greater the pulling force on the rotating wheel assembly 200, and the weaker the tension of the transmission belt 10, that is, the looser the transmission belt 10, the smaller the pulling force on the rotating wheel assembly 200. Before adjusting the transmission belt 10, first adjust the fastener 400 to loosen the relative position of the fixing member 100 and the rotating wheel assembly 200, so that the rotating wheel assembly 200 can move relative to the fixing member 100 under the pulling force of the transmission belt 10 and the external force of the force applying member 300. The movement of the rotating wheel assembly 200 will change the tension of the transmission belt 10, such as making the transmission belt 10 tighter. The force-applying member 300 is used to apply an external force in the opposite direction of the pulling force to the rotating wheel assembly 200. When the rotating wheel assembly 200 moves to the point where the external force of the force-applying member 300 is equal to the pulling force of the transmission belt 10, that is, the rotating wheel assembly 200 is balanced in force, it will stop moving. At this time, the fastener 400 can be adjusted to fix the position of the rotating wheel assembly 200, that is, fix the tension of the transmission belt 10. By keeping the external force within a preset range, the pulling force or the tension of the transmission belt 10 can be controlled within a certain range, and then the tension of the transmission belt 10 can be adjusted to a certain range.

[0041] The external force applied by the force applying member 300 to the rotating wheel assembly 200 can be a single fixed value or a value that varies within a preset range. For example, when the rotating wheel assembly 200 moves to tension the transmission belt 10, the external force of the force applying member 300 varies within a preset range. This is because the tension of the transmission belt 10 is not unique, and a good transmission effect can be achieved within a certain range. However, it can be understood that the preset range is relatively small.

[0042] The adjusting device and adjusting device of the embodiment of the utility model mainly apply external force within a preset range to the rotating wheel assembly by setting a force-applying member, so that the external force applied by the rotating wheel assembly to the transmission belt is within the preset range, so that the tension of the transmission belt is moderate, and the transmission performance is guaranteed. In the prior art, when installing or adjusting the transmission belt, it is necessary to judge the tension of the transmission belt through experience. When there is insufficient experience, the tension of the transmission belt is not easy to control, resulting in the transmission performance of the transmission belt being affected. Excessive tension will also cause accelerated wear of the transmission belt. Compared with the prior art, in the present application document, the transmission belt is wound around the rotating wheel assembly, and the force-applying member and the transmission belt apply mutually balanced external forces to the rotating wheel assembly. The force applied by the force-applying member is within the preset range, so that the tension of the transmission belt is within the preset range, and then the tension is controlled, so that the tension of the transmission belt meets the requirements of precise transmission, will not slip or lose steps, and avoid mechanical wear of the synchronous wheel and the like caused by excessive tension.

[0043] The force-applying member 300 can be in various forms, such as an elastic member. The elastic member applies force by changing its own shape. The elastic member applies external force within a preset range to the rotating wheel assembly 200, so that the transmission belt 10 is adjusted to the required tension range. In order to ensure that the elastic member can apply external force within the preset range, the elastic member needs to be in a certain range of extension or compression. Two extreme positions of the rotating wheel assembly 200 can be set. At the two extreme positions, the rotating wheel assembly 200 directly or indirectly interacts with the fixing member 100 and will not continue to move. The rotating wheel assembly 200 can only move relative to the fixing member 100 between the two extreme positions. When installing the transmission belt 10, it should be ensured that the length of the transmission belt 10 satisfies the rotating wheel assembly 200 being located between the two extreme positions, so that the rotating wheel assembly 200 can effectively adjust the tension of the transmission belt 10.

[0044] In some embodiments, the force applying member 300 may also be an electronic force applying member, such as the force applying member 300 including a telescopic motor and a tension and pressure gauge, the telescopic motor is fixed to the position of the fixing member 100, one end of the tension and pressure gauge is connected to the output shaft of the telescopic motor, and the other end of the tension and pressure gauge is connected to the rotating wheel assembly 200. When the tension of the transmission belt 10 is adjusted, the telescopic motor controls the output shaft to move, and then drives the rotating wheel assembly 200 to move through the tension and pressure gauge, so that the tension of the transmission belt 10 wrapped around the rotating wheel assembly 200 changes, until the tension or pressure value detected by the tension and pressure gauge reaches a preset value, which proves that the transmission belt 10 is adjusted to the required tension range, and then the movement of the output shaft of the telescopic motor can be stopped, the position of the rotating wheel assembly 200 can be fixed, and the tension of the transmission belt 10 can be locked. The tension and pressure gauge can be connected to the main controller of the three-dimensional printing device, and the detection value of the tension and pressure gauge is received by the main controller, and the external force applied by the tension and pressure gauge is within the preset range by controlling the telescopic motor. The force applying member 300 uses an elastic member, which can reduce production costs and control costs, and has a simple structure and is easy to implement.

[0045] In one embodiment, in order to ensure that the rotating wheel assembly 200 moves stably relative to the fixed member 100 and does not shake relative to the fixed member 100, the rotating wheel assembly 200 is directly or indirectly connected to the fixed member 100 by sliding. Specifically, the fixed member 100 is provided with a slide groove 101, and the slide groove 101 extends in the moving direction of the rotating wheel assembly 200. At least part of the rotating wheel assembly 200 is arranged in the slide groove 101 and is slidably connected to the slide groove 101, and then limited by the side wall of the slide groove 101. In some embodiments, the side wall of the slide groove 101 is provided with a plurality of support ribs 111 protruding from the side wall of the slide groove 101, and the rotating wheel assembly 200 is slidably connected to the support ribs 111. The support ribs 111 can be multiple and extend in the moving direction of the rotating wheel assembly 200, which can reduce the contact area between the rotating wheel assembly 200 and the side wall of the slide groove 101, thereby reducing the friction force, so that the movement of the rotating wheel assembly 200 is smoother.

[0046] Alternatively, the rotating wheel assembly 200 may not be in direct contact with the fixing member 100, but may be suspended in the slide slot 101, and the fixing member 100 may also be provided with a fastening through hole 103, the fastening through hole 103 extending in the moving direction of the rotating wheel assembly 200, the fastener 400 is inserted through the fastening through hole 103, and is slidably connected with the fastening through hole 103, and the rotating wheel assembly 200 is stably moved through the interaction between the edge of the fastening through hole 103 and the fastener 400. The moving direction of the aforementioned rotating wheel assembly 200 refers to the direction in which a part of the transmission belt 10 can be driven to move, and then the tension of the transmission belt 10 can be adjusted, or the direction in which the rotating wheel assembly 200 applies force to the transmission belt 10.

[0047] The rotating wheel assembly 200 can be connected to the transmission belt 10 through the slide groove 101, so that the transmission belt 10 is easy to install, or the force member 300 is located in the slide groove 101 as a whole, and the fixing member 100 is also provided with a through hole 102, and the through hole 102 is used to pass the transmission belt 10. The force member 300 can also be located in the slide groove 101. The slide groove 101 plays a role in protecting the rotating wheel assembly 200 and the force member 300, and makes the overall appearance of the adjustment device simple.

[0048] The force-applying member 300 can be arranged at various positions and have various force-applying directions. For example, when the force-applying member 300 is an elastic member, the force-applying member 300 is used to apply an external force to the rotating wheel assembly 200 to move away from the through hole 102, or an external force parallel to the moving direction of the rotating wheel assembly 200, so as to apply an external force opposite to the force applied by the transmission belt 10 to the rotating wheel assembly 200, and no external force perpendicular to the moving direction of the rotating wheel assembly 200 is generated, so as to prevent the rotating wheel assembly 200 from being squeezed by the chute 101. The force-applying member 300 can be arranged on the side of the rotating wheel assembly 200 opposite to the through hole 102, and the force-applying member 300 is in a compressed state, so as to apply a thrust to the rotating wheel assembly 200 to move away from the through hole 102. Alternatively, the force-applying member 300 can be arranged on the side of the rotating wheel assembly 200 opposite to the through hole 102, and the force-applying member 300 is in a stretched state, so as to apply a pulling force to the rotating wheel assembly 200 to move away from the through hole 102.

[0049] In one embodiment, the fixing member 100 includes a fixing body 110 and a mounting cover 120, the fixing body 110 includes a mounting opening and a slide groove 101, the slide groove 101 is connected to the mounting opening, the mounting cover 120 is used to connect to the fixing body 110 and at least partially cover the mounting opening, and the rotating wheel assembly 200 is located in the area enclosed by the mounting cover 120 and the side walls of the slide groove 101.

[0050] The aforementioned through hole 102 can be provided on the mounting cover 120, and the fixed body 110 cooperates with the mounting cover 120, which can facilitate the installation of the rotating wheel assembly 200 and the force-applying member 300, and further protect the rotating wheel assembly 200 and the force-applying member 300. In one embodiment, the force-applying member 300 is located between the mounting cover 120 and the rotating wheel assembly 200, and the two ends of the force-applying member 300 abut against the mounting cover 120 and the rotating wheel assembly 200, respectively. During installation, the rotating wheel assembly 200 is first placed in the slide groove 101, and then the force-applying member 300 is connected to the rotating wheel assembly 200, and finally the mounting cover 120 is connected, so that the mounting cover 120 cooperates with the rotating wheel assembly 200 to squeeze the force-applying member 300. The mounting cover 120 can be specifically a plate-like structure, and the mounting cover 120 and the fixed body 110 can be connected by mounting bolts 140.

[0051] Further, the force member 300 is a spring, the fixed member 100 includes a first limiting column 130, the rotating wheel assembly 200 includes a second limiting column 230, and the two ends of the force member 300 are respectively sleeved on the first limiting column 130 and the second limiting column 230. For example, in an embodiment where the force member 300 is disposed between the side of the fixed member 100 with the through hole 102 and the rotating wheel assembly 200, the first limiting column 130 can be disposed on the mounting cover 120. In an embodiment where the force member 300 is disposed between the side of the fixed member 100 opposite to the through hole 102 and the rotating wheel assembly 200, the first limiting column 130 can be disposed at the bottom of the slot of the slide slot 101 opposite to the mounting opening.

[0052] The second limiting column 230 cooperates with the first limiting column 130 to support the spring, so that when the spring is deformed, it moves along the second limiting column 230 and the first limiting column 130 to prevent the spring from bending and shaking. The spring only needs to be sleeved on the second limiting column 230 and the first limiting column 130, and does not need to be additionally fixed to the fixing part 100 and the rotating wheel assembly 200, so installation and replacement are more convenient.

[0053] In one embodiment, the rotating wheel assembly 200 includes a moving frame 210 and a rotating wheel 220, the moving frame 210 is connected to the force applying member 300, the rotating wheel 220 is rotationally connected to the moving frame 210, and the rotating wheel 220 is used to connect the transmission belt 10. During the movement of the transmission belt 10, the rotating wheel 220 rotates relative to the moving frame 210 to reduce the movement resistance of the transmission belt 10. The rotating method of the rotating wheel 220 can be multiple, such as the rotating wheel 220 includes a rotating shaft 221 and a wheel disc 222, the rotating shaft 221 is connected to the moving frame 210, the wheel disc 222 is connected to the rotating shaft 221, the rotating shaft 221 is rotationally connected to the moving frame 210, such as through a bearing rotation connection, the wheel disc 222 and the rotating shaft 221 can be integrally formed or interference connection. Alternatively, the wheel disc 222 is rotationally connected to the rotating shaft 221, such as through a bearing rotation connection, and the rotating shaft 221 is interference connected to the moving frame 210.

[0054] The structure of the mobile frame 210 can be various, and the configuration of the force-applying member 300 corresponding to the mobile frames 210 of different structures is also different. The mobile frame 210 includes an upper support plate 211, a lower support plate 212 and a side support plate 213. The upper support plate 211 and the lower support plate 212 are arranged opposite to each other, and the side support plate 213 is respectively connected to the upper support plate 211 and the lower support plate 212. The rotating wheel 220 includes a rotating shaft 221 and a wheel disc 222. The rotating shaft 221 is respectively connected to the upper support plate 211 and the lower support plate 212, and the wheel disc 222 is located between the upper support plate 211 and the lower support plate 212. The aforementioned connection between the rotating shaft 221 and the mobile frame 210 refers to the connection between the rotating shaft 221 and the upper support plate 211 and the lower support plate 212, such as a rotation connection or an interference connection. The connection position of the force applying member 300 is intended to ensure that the force applying direction can be in the moving direction of the moving frame 210 along the slide groove 101, and there are multiple connection modes according to the setting positions of the upper support plate 211, the lower support plate 212 and the side support plate 213. In one embodiment, Figure 1-7 As shown, there are two side support plates 213, which are respectively arranged on both sides of the radial direction of the rotating wheel 220. The force-applying member 300 includes a plurality of sub-force-applying members, and at least one sub-force-applying member is connected to any side support plate 213. The two side support plates 213, the upper support plate 211 and the lower support plate 212 together enclose a closed frame, so that the structure of the mobile frame 210 is more stable. The two side support plates 213 are at the same distance from the mounting cover 120. A second limiting column 230 is arranged on any side support plate 213, and two first limiting columns 130 are arranged on the mounting cover 120 corresponding to the second limiting column 230. The force-applying member 300 includes two sub-force-applying members, which apply external force to the mobile frame 210 through the two side support plates 213 respectively. The sum of the external forces of the two sub-force-applying members is the external force applied by the force-applying member 300 as a whole, that is, the sum of the external forces of the two sub-force-applying members is within a preset range. In another embodiment, as Figure 8-15 As shown, there is one side support plate 213, which is arranged on one radial side of the rotating wheel 220. The side support plate 213 is closer to the mounting cover 120 than the upper support plate 211 and the lower support plate 212. A force-applying member 300 is connected to the side support plate 213, such as a single force-applying member 300, such as a spring, or the force-applying member 300 includes a plurality of sub-force-applying members, and the side support plate 213 is connected to the plurality of sub-force-applying members.

[0055] The fastener 400 is intended to fix or loosen the relative position between the rotating wheel assembly 200 and the fixing member 100, and the fixing method can be various, such as extrusion fixing, clamping, etc. In one embodiment, the fastener 400 includes an action end 410, and the position of the action end 410 includes a fastening position and a loosening position. The fastener 400 is used to move under the action of an external force so that the action end 410 moves between the fastening position and the loosening position. In one embodiment, the fastener 400 is connected to the rotating wheel assembly 200, and when in the fastening position, the action end 410 is fixed to the fixing member 100, and when in the loosening position, the action end 410 is separated from the fixing member 100, that is, when in the loosening position, the fastener 400 moves relative to the fixing member 100 with the rotating wheel assembly 200. In the embodiment in which the fixing member 100 includes a slide groove 101, a fastening through hole 103 is opened on the fixing member 100, and the fastening through hole 103 extends in the moving direction of the rotating wheel assembly 200, and the fastener 400 passes through the fastening through hole 103. More specifically, the fastener 400 further includes a screw 420, which is movably connected to the fastening through hole 103, the first end of the screw 420 is screwed to the rotating wheel assembly 200, the second end of the screw 420 is connected to the action end 410, and the action end 410 is located outside the slide groove 101. The fastener 400 is used to rotate under the action of an external force, so that the action end 410 moves to the fastening position, the action end 410 abuts against the fixing member 100, or when the action end 410 moves to the loosening position, the action end 410 is separated from the fixing member 100. In order to further improve the stability of the movement of the rotating wheel assembly 200, the screw 420 can slide and abut against the edge of the slide groove 101.

[0056] In some other embodiments, the fastener 400 is connected to the fixing member 100, and when in the fastened position, the action end 410 is fixed to the rotating wheel assembly 200, and when in the loosened position, the action end 410 is separated from the rotating wheel assembly 200, that is, the position of the fastener 400 is fixed, and when in the loosened position, the rotating wheel assembly 200 moves relative to the fastener 400. More specifically, the fastener 400 is a top screw, and the action end 410 is one end of the top screw relative to the rotating wheel assembly 200, and the fastening through hole 103 is a top screw hole, and the top screw is screwed with the top screw hole. The top screw is used to rotate under the action of an external force to move to the fastened position to abut against the rotating wheel assembly 200, thereby fixing the rotating wheel assembly 200, or to be separated from the rotating wheel assembly 200 when moving to the loosened position.

[0057] In one embodiment, the adjustment device further includes an auxiliary plug-in 500, which is used to connect with the rotating wheel assembly 200 to limit the rotating wheel assembly 200 to the initial position. When the force applying member 300 applies an external force within a preset range to the rotating wheel assembly 200, the rotating wheel assembly 200 is in the working position. The direction in which the rotating wheel assembly 200 moves from the initial position to the working position is the direction in which the rotating wheel assembly 200 applies force to the transmission belt 10.

[0058] The force direction of the rotating wheel assembly 200 on the transmission belt 10 is opposite to the direction in which the transmission belt 10 is led outward from the adjustment device after it is wound around the rotating wheel assembly 200. When installing the transmission belt 10, adjust the action end 410 to the loose position, use the auxiliary plug-in 500 to fix the position of the rotating wheel assembly 200, and move the rotating wheel assembly 200 to the initial position. Figure 5 and Fig.12 As shown, the rotating wheel assembly 200 is adjusted to move toward the lead-out direction of the transmission belt 10 and fixed at the initial position. The transmission belt 10 can be in a slightly loose state when installed, which is convenient for installing the transmission belt 10. Since the rotating wheel assembly 200 is fixed in position, when installing the transmission belt 10, there is no need to overcome the external force applied by the force applying member 300 to the rotating wheel assembly 200. Figure 5 and Fig.12 As shown, when the force-applying member 300 is an elastic member, when the rotating wheel assembly 200 moves to the initial position, the elastic member is in a more compressed state, and the external force applied to the rotating wheel assembly 200 will be greater than the maximum value of the external force within the preset range. Figure 6 , Figure 13-14 As shown, the rotating wheel assembly 200 will move toward the working position under the action of the force-applying member 300, the external force of the force-applying member 300 will be reduced to a preset range, and the transmission belt 10 will be tightened until the tension of the transmission belt 10 is balanced with the external force of the force-applying member 300, and the fastener 400 can be adjusted to fix the position of the rotating wheel assembly 200. It is worth noting that the auxiliary plug-in 500 is used to fix the rotating wheel assembly 200 to the initial position, instead of fixing the rotating wheel assembly 200 to the initial position by the fastener 400, so that the fastener 400 can always be in a loose position until the tension of the transmission belt 10 is adjusted, and the fastener 400 can be tightened once, without the need to screw the fastener 400 multiple times, and only the auxiliary plug-in 500 needs to be removed, which is convenient for batch operation.

[0059] Furthermore, in an embodiment where a slide groove 101 is provided on the fixing member 100 and the rotating wheel assembly 200 is at least partially located in the slide groove 101, an auxiliary plug hole 104 is also provided on the fixing member 100, and the auxiliary plug 500 passes through the auxiliary plug hole 104 to be connected with the rotating wheel assembly 200. The auxiliary plug hole 104 can be a through hole connected to the fastening through hole 103, or can be through holes independent of each other.

[0060] The auxiliary plug-in 500 is located at the side where the rotating wheel assembly 200 contacts the transmission belt 10, and the auxiliary plug-in 500 abuts against the rotating wheel assembly 200 to apply thrust to the rotating wheel assembly 200. Since the rotating wheel 220 of the rotating wheel assembly 200 is rotatable, when installing the auxiliary plug-in 500, the auxiliary plug-in 500 can be inserted toward the wheel surface of the rotating wheel 220, and the auxiliary plug-in 500 will push the rotating wheel 220 to rotate, and at the same time push the rotating wheel 220 to move away from the direction of applying force to the transmission belt 10, thereby making it easy to install and remove the auxiliary plug-in 500.

[0061] In some other embodiments, the auxiliary plug-in 500 can also be connected to the rotating wheel assembly 200 in a hanging manner, and through the connection between the auxiliary plug-in 500 and the fixing member 100, such as hanging, a pulling force is applied to the rotating wheel assembly 200 to fix the rotating wheel assembly 200 in the initial position. Alternatively, a positioning hole can be provided on the rotating wheel assembly 200, and the auxiliary plug-in 500 is used to be plugged into the positioning hole. The rotating wheel assembly 200 can be moved to the initial position by moving the fastener 400. In the initial position, the positioning hole corresponds to the auxiliary socket 104, and the auxiliary plug-in 500 can be inserted into the positioning hole and the auxiliary socket 104 to fix the position of the rotating wheel assembly 200.

[0062] On the other hand, the utility model further provides a three-dimensional printing device, including any one of the aforementioned adjustment devices, including the advantages of any one of the aforementioned adjustment devices, which will not be repeated here.

[0063] In one embodiment, the three-dimensional printing device further includes a main body, a driving mechanism, a transmission belt 10 and a functional part. The driving mechanism and the adjustment device are both connected to the main body, the transmission belt 10 is wound around the driving mechanism and the rotating wheel assembly 200, and the functional part is connected to the transmission belt 10. The driving mechanism is used to drive the transmission belt 10 to drive the functional part to move.

[0064] The three-dimensional printing device can be of various types, such as a gantry-type printing device, or a frame-type printing device including a Corexy structure, and the transmission belt 10 is mainly used to drive functional parts such as a print head model or a printing platform. For example, in a gantry-type printing device, the base is connected to a driving mechanism of the printing platform, which is used to drive the printing platform to move in the Y-axis direction, the gantry is set up above the printing platform, the X-axis bracket is connected to the gantry driving connection, and the X-axis bracket is also connected to the driving mechanism of the print head, which is used to drive the print head to move in the X-axis direction. The driving mechanism mainly includes a motor, a synchronous wheel and a transmission belt 10, the transmission belt is wound around the output end and the synchronous wheel of the motor, the transmission belt 10 is connected to the printing platform or the print head module, and then drives the functional parts to move in the forward or reverse direction under the drive of the motor. The transmission belt 10 can be directly connected to the functional parts as described above, or, in a frame-type printing device, different sides of the printing platform are screwed with multiple screws, the synchronous wheel of the driving mechanism is connected to the screw, and the transmission belt 10 is wound around the motor and multiple synchronous wheels, and then can drive multiple screws to rotate synchronously, playing the role of synchronous transmission driving the printing platform to rise and fall. The rotating wheel 220 of the rotating wheel assembly 200 in the adjusting device can be directly used as the aforementioned synchronous wheel, or can be arranged between the motor and the synchronous wheel.

[0065] This application also provides the following complete implementation method:

[0066] An adjusting device is used for tensioning a transmission belt 10 in a three-dimensional printing device. The adjusting device comprises: a fixing member 100, the fixing member 100 is fixed to a main body of the three-dimensional printing device;

[0067] A rotating wheel assembly 200, the rotating wheel assembly 200 is used to connect the transmission belt 10;

[0068] A force applying member 300, the force applying member 300 is connected to the fixing member 100 and the rotating wheel assembly 200 respectively, and the force applying member 300 is used to apply an external force within a preset range to the rotating wheel assembly 200;

[0069] The fastener 400 is used to connect with the fixing member 100 and the rotating wheel assembly 200 to fix or loosen the relative position of the fixing member 100 and the rotating wheel assembly 200.

[0070] The fixing member 100 is provided with a slide groove 101, and the rotating wheel assembly 200 is at least partially embedded in the slide groove 101 and is slidably connected to the side wall of the slide groove 101;

[0071] A plurality of support ribs 111 protruding from the side wall of the slide groove 101 are provided on the side wall of the slide groove 101, and the rotating wheel assembly 200 is slidably connected to the support ribs 111;

[0072] The fixing member 100 is provided with a fastening through hole 103, and the fastening member 400 is inserted into the fastening through hole 103 and is slidably connected with the edge of the fastening through hole 103.

[0073] The fixing member 100 is further provided with a through hole 102 , and the through hole 102 is used for passing the transmission belt 10 .

[0074] The force-applying members 300 are all located in the slide groove 101; the force-applying members 300 are arranged between the side of the fixing member 100 where the through hole 102 is opened and the rotating wheel assembly 200, and the force-applying members 300 are used to apply thrust to the rotating wheel assembly 200, or the force-applying members 300 are arranged between the side of the fixing member 100 opposite to the through hole 102 and the rotating wheel assembly 200, and the force-applying members 300 are used to apply pulling force to the rotating wheel assembly 200.

[0075] The fixing member 100 includes a fixing body 110 and a mounting cover 120, the fixing body 110 includes a mounting opening and a slide groove 101, the slide groove 101 is connected to the mounting opening, the mounting cover 120 is connected to the fixing body 110, and at least partially covers the mounting opening; the rotating wheel assembly 200 is located in the area enclosed by the side walls of the mounting cover 120 and the slide groove 101, and the force-applying member 300 is located between the mounting cover 120 and the rotating wheel assembly 200.

[0076] The fixing member 100 includes a first limiting column 130 , the rotating wheel assembly 200 includes a second limiting column 230 , and the force applying member 300 includes a spring, and two ends of the spring are respectively sleeved on the first limiting column 130 and the second limiting column 230 .

[0077] The rotating wheel assembly 200 includes a moving frame 210 and a rotating wheel 220. The moving frame 210 is connected to the force applying member 300. The rotating wheel 220 is rotatably connected to the moving frame 210. The rotating wheel 220 is used to connect the transmission belt 10. The rotating wheel 220 includes a rotating shaft 221 and a wheel disc 222. The rotating shaft 221 is connected to the moving frame 210, and the wheel disc 222 is connected to the rotating shaft 221.

[0078] The rotating shaft 221 is rotatably connected to the moving frame 210 , and / or the wheel 222 is rotatably connected to the rotating shaft 221 .

[0079] The mobile frame 210 includes an upper support plate 211, a lower support plate 212 and a side support plate 213. The upper support plate 211 and the lower support plate 212 are arranged opposite to each other, and the side support plate 213 is connected to the upper support plate 211 and the lower support plate 212 respectively. The rotating shaft 221 is connected to the upper support plate 211 and the lower support plate 212 respectively, and the wheel disc 222 is located between the upper support plate 211 and the lower support plate 212. There are two side support plates 213, which are respectively arranged on both sides of the radial direction of the rotating wheel 220. The force applying member 300 includes a plurality of sub-force applying members, and at least one sub-force applying member is connected to any side support plate 213, or the side support plate 213 is arranged on one side of the radial direction of the rotating wheel 220, and the force applying member 300 is connected to the side support plate 213.

[0080] The fastener 400 includes an action end 410, and the position of the action end 410 includes a fastening position and a loosening position. The fastener 400 is used to move under the action of an external force so that the action end 410 moves between the fastening position and the loosening position. The fastener 400 is connected to the fixing member 100, and in the fastening position, the action end 410 is fixed to the rotating wheel assembly 200, and in the loosening position, the action end 410 is separated from the rotating wheel assembly 200. Alternatively, the fastener 400 is connected to the rotating wheel assembly 200, and in the fastening position, the action end 410 is fixed to the fixing member 100, and in the loosening position, the action end 410 is separated from the fixing member 100.

[0081] The fixing member 100 is provided with a fastening through hole 103, and the fixing member 100 is provided with a slide groove 101, and the rotating wheel assembly 200 is at least partially located in the slide groove 101. The fastener 400 also includes a screw 420, which is movably connected to the fastening through hole 103, a first end of the screw 420 is screwed to the rotating wheel assembly 200, and a second end of the screw 420 is connected to an action end 410, and the action end 410 is located outside the slide groove 101. The fastener 400 is used to rotate under the action of an external force, so that the action end 410 moves to a fastening position, and the action end 410 abuts against the fixing member 100, or when the action end 410 moves to a loose position, the action end 410 is separated from the fixing member 100. Alternatively, the fastener 400 includes a top screw, the active end 410 is one end of the top screw relative to the rotating wheel assembly 200, the fastening through hole 103 is a top screw hole, the top screw is threadedly connected to the top screw hole, and the top screw is used to rotate under the action of external force to move the active end 410 to a fastening position and abut against the rotating wheel assembly 200, or to move the active end 410 to a loosened position and disengage from the rotating wheel assembly 200.

[0082] The adjusting device further includes: an auxiliary plug-in 500, which is used to connect with the rotating wheel assembly 200 to limit the rotating wheel assembly 200 to the initial position. When the force applying member 300 applies an external force within a preset range to the rotating wheel assembly 200, the rotating wheel assembly 200 is in the working position. The direction in which the rotating wheel assembly 200 moves from the initial position to the working position is the force applying direction of the rotating wheel assembly 200 on the transmission belt 10.

[0083] The fixing member 100 is provided with a slide groove 101, and the rotating wheel assembly 200 is at least partially located in the slide groove 101. The fixing member 100 is also provided with an auxiliary plug-in 104, and the auxiliary plug-in 104 is connected to the slide groove 101. The auxiliary plug-in 500 is connected to the rotating wheel assembly 200 through the auxiliary plug-in 104. The auxiliary plug-in 500 is located on the side where the rotating wheel assembly 200 contacts the transmission belt 10, and the auxiliary plug-in 500 abuts against the rotating wheel assembly 200. Alternatively, the auxiliary plug-in 500 is hung on the rotating wheel assembly 200. Alternatively, a positioning hole is provided on the rotating wheel assembly 200, and the auxiliary plug-in 500 is used to be plugged into the positioning hole.

[0084] The utility model also provides the following implementation modes:

[0085] Reference numeral 1, an adjusting device, used for tensioning a transmission belt 10 in a three-dimensional printing device, wherein the adjusting device comprises:

[0086] A fixing member 100, the fixing member 100 is fixed to a main body of the three-dimensional printing device;

[0087] A rotating wheel assembly 200, the rotating wheel assembly 200 is used to connect the transmission belt 10;

[0088] A force applying member 300, the force applying member 300 is connected to the fixing member 100 and the rotating wheel assembly 200 respectively, and the force applying member 300 is used to apply an external force to the rotating wheel assembly 200;

[0089] The fastener 400 is used to connect with the fixing member 100 and the rotating wheel assembly 200 to lock the relative position of the fixing member 100 and the rotating wheel assembly 200 .

[0090] Reference numeral 2, an adjusting device according to reference numeral 1, wherein a slide groove 101 is provided on the fixing member 100, and at least a part of the rotating wheel assembly 200 is disposed in the slide groove 101 and is slidably connected to the slide groove 101;

[0091] And / or, a slide groove 101 is provided on the fixing member 100, at least part of the rotating wheel assembly 200 is disposed in the slide groove 101, a plurality of supporting ribs 111 protruding from the side wall of the slide groove 101 are provided on the side wall of the slide groove 101, and the rotating wheel assembly 200 is slidably connected to the supporting ribs 111;

[0092] And / or, a fastening through hole 103 is opened on the fixing member 100, and the fastener 400 is inserted into the fastening through hole 103 and is slidably connected with the fastening through hole 103.

[0093] Reference numeral 3. The regulating device according to reference numeral 2, wherein:

[0094] The fixing member 100 is further provided with a through hole 102 , and the through hole 102 is used for passing the transmission belt 10 .

[0095] Reference numeral 4, the adjusting device according to reference numeral 3, wherein the force applying member 300 is located in the slide groove 101;

[0096] The force applying member 300 is used to apply thrust to the rotating wheel assembly 200;

[0097] Alternatively, the force applying member 300 is used to apply a pulling force to the rotating wheel assembly 200 .

[0098] Reference numeral 5. The regulating device according to reference numeral 2, wherein:

[0099] The fixing member 100 includes a fixing body 110 and a mounting cover 120. The fixing body 110 includes a mounting opening and a slide groove 101. The slide groove 101 is connected to the mounting opening. The mounting cover 120 is connected to the fixing body 110, and at least a portion of the mounting cover 120 covers the mounting opening.

[0100] The rotating wheel assembly 200 is located in an area enclosed by the mounting cover 120 and the side wall of the slide groove 101 , and the force applying member 300 is located between the mounting cover 120 and the rotating wheel assembly 200 .

[0101] Label 6, an adjustment device according to label 1, wherein the fixing member 100 includes a first limiting column 130, the rotating wheel assembly 200 includes a second limiting column 230, and the force applying member 300 includes a spring, and both ends of the spring are respectively connected to the first limiting column 130 and the second limiting column 230.

[0102] Reference numeral 7, the adjusting device according to reference numeral 1, wherein the rotating wheel assembly 200 comprises a moving frame 210 and a rotating wheel 220, the moving frame 210 is connected to the force applying member 300, the rotating wheel 220 is rotatably connected to the moving frame 210, and the rotating wheel 220 is used to connect the transmission belt 10;

[0103] The rotating wheel 220 includes a rotating shaft 221 and a wheel disc 222 . The rotating shaft 221 is connected to the moving frame 210 , and the wheel disc 222 is connected to the rotating shaft 221 . The rotating shaft 221 is rotationally connected to the moving frame 210 ; and / or the wheel disc 222 is rotationally connected to the rotating shaft 221 .

[0104] Reference numeral 8, an adjustment device according to reference numeral 7, wherein the movable frame 210 comprises an upper support plate 211, a lower support plate 212 and a side support plate 213, the upper support plate 211 and the lower support plate 212 are arranged opposite to each other, and the side support plate 213 is connected to the upper support plate 211 and the lower support plate 212 respectively;

[0105] The rotating shaft 221 is connected to the upper support plate 211 and the lower support plate 212 respectively, and the wheel disc 222 is located between the upper support plate 211 and the lower support plate 212; there are two side support plates 213, which are respectively arranged on both sides of the radial direction of the rotating wheel 220, and the force applying member 300 includes a plurality of sub-force applying members, and at least one sub-force applying member is connected to any side support plate 213;

[0106] Alternatively, the side support plates 213 are disposed on both sides of the rotating wheel 220 in the radial direction, and the force applying members 300 are connected to the side support plates 213 .

[0107] Reference numeral 9. The regulating device according to reference numeral 1, wherein:

[0108] The fastener 400 includes an action end 410, and the position of the action end 410 includes a fastening position and a loosening position. The fastener 400 is used to move under the action of an external force so that the action end 410 moves between the fastening position and the loosening position;

[0109] The fastener 400 is connected to the fixing member 100. When in the fastening position, the action end 410 is fixed to the rotating wheel assembly 200. When in the loosening position, the action end 410 is separated from the rotating wheel assembly 200.

[0110] Alternatively, the fastener 400 is connected to the rotating wheel assembly 200, and when in the fastening position, the action end 410 is fixed to the fixing member 100, and when in the loosening position, the action end 410 is separated from the fixing member 100.

[0111] Reference numeral 10. The regulating device according to reference numeral 9, wherein:

[0112] The fixing member 100 is provided with a fastening through hole 103, and the fixing member 100 is provided with a slide groove 101, and the rotating wheel assembly 200 is at least partially located in the slide groove 101;

[0113] The fastener 400 further includes a screw rod 420, which is movably connected to the fastening through hole 103, a first end of the screw rod 420 is threadedly connected to the rotating wheel assembly 200, and a second end of the screw rod 420 is connected to an action end 410, and the action end 410 is located outside the slide groove 101. The fastener 400 is used to rotate under the action of an external force, so that the action end 410 moves to a fastening position, and the action end 410 abuts against the fixing member 100, or when the action end 410 moves to a loosening position, the action end 410 is separated from the fixing member 100;

[0114] Alternatively, the fastener 400 includes a top screw, the active end 410 is one end of the top screw relative to the rotating wheel assembly 200, the fastening through hole 103 is a top screw hole, the top screw is threadedly connected to the top screw hole, and the top screw is used to rotate under the action of external force to move the active end 410 to a fastening position and abut against the rotating wheel assembly 200, or to move the active end 410 to a loosened position and disengage from the rotating wheel assembly 200.

[0115] Reference numeral 11. The regulating device according to reference numeral 1, wherein the regulating device further comprises:

[0116] The auxiliary plug-in 500 is used to connect with the rotating wheel assembly 200 to limit the rotating wheel assembly 200 to an initial position. When the force applying member 300 applies an external force within a preset range to the rotating wheel assembly 200, the rotating wheel assembly 200 is in a working position;

[0117] The direction in which the rotating wheel assembly 200 moves from the initial position to the working position is the direction in which the rotating wheel assembly 200 applies force to the transmission belt 10 .

[0118] Reference numeral 12, an adjusting device according to reference numeral 11, wherein a slide groove 101 is provided on the fixing member 100, the rotating wheel assembly 200 is at least partially located in the slide groove 101, an auxiliary plug hole 104 is further provided on the fixing member 100, the auxiliary plug hole 104 is connected to the slide groove 101, and the auxiliary plug 500 is connected to the rotating wheel assembly 200 via the auxiliary plug hole 104;

[0119] The auxiliary plug-in 500 is located at the side where the rotating wheel assembly 200 contacts the transmission belt 10 , and the auxiliary plug-in 500 abuts against the rotating wheel assembly 200 ;

[0120] Alternatively, the auxiliary plug-in 500 is mounted on the rotating wheel assembly 200;

[0121] Alternatively, a positioning hole is provided on the rotating wheel assembly 200, and the auxiliary plug-in 500 is used to be plugged into the positioning hole.

[0122] Label 13. A three-dimensional printing device, comprising an adjustment device as described in any one of the above labels 1-12.

[0123] Reference number 14. The three-dimensional printing device according to reference number 13, wherein the three-dimensional printing device further comprises:

[0124] The main body, the driving mechanism, the transmission belt 10 and the functional parts; the driving mechanism and the adjusting device are connected to the main body, the transmission belt 10 is wound around the driving mechanism and the rotating wheel assembly 200, and the functional parts are connected to the transmission belt 10; the driving mechanism is used to drive the transmission belt 10 to drive the functional parts to move.

[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. An adjusting device, used for tensioning a transmission belt in a three-dimensional printing device, characterized in that: The regulating device comprises: A fixing member, the fixing member being fixed to a main body of the three-dimensional printing device; A rotating wheel assembly, the rotating wheel assembly is used to connect the transmission belt; A force applying member, the force applying member is respectively connected to the fixing member and the rotating wheel assembly, and the force applying member is used to apply an external force to the rotating wheel assembly; A fastener is used to connect with the fixing member and the rotating wheel assembly, and is used to lock the relative position of the fixing member and the rotating wheel assembly.

2. The adjusting device according to claim 1, characterized in that: The fixing member is provided with a slide groove, and at least a part of the rotating wheel assembly is arranged in the slide groove and is slidably connected with the slide groove; And / or, a slide groove is provided on the fixing member, at least a part of the rotating wheel assembly is arranged in the slide groove, a plurality of supporting ribs protruding from the side wall of the slide groove are provided on the side wall of the slide groove, and the rotating wheel assembly is slidably connected to the supporting ribs; And / or, a fastening through hole is formed on the fixing member, and the fastener is inserted into the fastening through hole and is slidably connected with the fastening through hole.

3. The adjusting device according to claim 2, characterized in that: The fixing piece is also provided with a through hole, and the through hole is used for passing the transmission belt.

4. The adjusting device according to claim 3, characterized in that: The force applying members are all located in the slide grooves; The force applying member is used to apply thrust to the rotating wheel assembly; Alternatively, the force applying member is used to apply a pulling force to the rotating wheel assembly.

5. The adjusting device according to claim 2, characterized in that: The fixing member comprises a fixing body and a mounting cover, the fixing body comprises a mounting opening and the slide slot, the slide slot is communicated with the mounting opening, the mounting cover is connected to the fixing body, and at least a portion of the mounting cover covers the mounting opening; The rotating wheel assembly is located in an area enclosed by the mounting cover and the side wall of the slide groove, and the force applying member is located between the mounting cover and the rotating wheel assembly.

6. The adjusting device according to claim 1, characterized in that: The fixing member includes a first limiting column, the rotating wheel assembly includes a second limiting column, and the force applying member includes a spring, and two ends of the spring are respectively connected to the first limiting column and the second limiting column.

7. The adjusting device according to claim 1, characterized in that: The rotating wheel assembly comprises a moving frame and a rotating wheel, wherein the moving frame is connected to the force applying member, the rotating wheel is rotatably connected to the moving frame, and the rotating wheel is used to connect the transmission belt; The rotating wheel comprises a rotating shaft and a wheel disc, wherein the rotating shaft is connected to the moving frame, and the wheel disc is connected to the rotating shaft; The rotating shaft is rotatably connected to the moving frame; And / or, the wheel disc is rotatably connected to the rotating shaft.

8. The adjusting device according to claim 7, characterized in that: The mobile frame comprises an upper support plate, a lower support plate and a side support plate, the upper support plate and the lower support plate are arranged opposite to each other, and the side support plates are connected to the upper support plate and the lower support plate respectively; The rotating shaft is connected to the upper support plate and the lower support plate respectively, and the wheel disc is located between the upper support plate and the lower support plate; There are two side support plates, which are respectively arranged on both sides of the radial direction of the rotating wheel. The force applying member includes a plurality of sub-force applying members, and at least one of the sub-force applying members is connected to any of the side support plates. Alternatively, the side support plates are arranged on both sides of the rotating wheel in a radial direction, and the force applying members are connected to the side support plates.

9. The adjusting device according to claim 1, characterized in that: The fastener comprises an action end, the position of the action end comprises a fastening position and a loosening position, and the fastener is used to move under the action of an external force so that the action end moves between the fastening position and the loosening position; The fastener is connected to the fixing member, and when in the fastened position, the action end is fixed to the rotating wheel assembly, and when in the loosened position, the action end is separated from the rotating wheel assembly; Alternatively, the fastener is connected to the rotating wheel assembly, and when in the fastened position, the acting end is fixed to the fixing member, and when in the loosened position, the acting end is detached from the fixing member.

10. The adjustment device according to claim 9, characterized in that The fixing member is provided with a fastening through hole, the fixing member is provided with a slide groove, and the rotating wheel assembly is at least partially located in the slide groove; The fastener further comprises a screw rod, the screw rod is movably connected to the fastening through hole, the first end of the screw rod is threadedly connected to the rotating wheel assembly, the second end of the screw rod is connected to the action end, the action end is located outside the slide groove, and the fastener is used to rotate under the action of an external force so that the action end moves to the fastening position, the action end abuts against the fixing member, or when the action end moves to the loosening position, the action end is separated from the fixing member; Alternatively, the fastener includes a top screw, the active end is an end of the top screw opposite to the rotating wheel assembly, the fastening through hole is a top screw hole, the top screw is threadedly connected to the top screw hole, and the top screw is used to rotate under the action of an external force so that the active end moves to the fastening position and abuts against the rotating wheel assembly, or moves the active end to the loosening position and disengages from the rotating wheel assembly.

11. The adjusting device according to claim 1, characterized in that: The adjusting device also includes: an auxiliary plug-in, the auxiliary plug-in being used to connect with the rotating wheel assembly to limit the rotating wheel assembly to an initial position, and when the force applying member applies an external force within a preset range to the rotating wheel assembly, the rotating wheel assembly is in a working position; The direction in which the rotating wheel assembly moves from the initial position to the working position is the direction in which the rotating wheel assembly applies force to the transmission belt.

12. The adjustment device according to claim 11, characterized in that The fixing member is provided with a slide groove, the rotating wheel assembly is at least partially located in the slide groove, the fixing member is further provided with an auxiliary plug hole, the auxiliary plug hole is connected to the slide groove, and the auxiliary plug-in is connected to the rotating wheel assembly through the auxiliary plug hole; The auxiliary plug-in is located at a side of the rotating wheel assembly in contact with the transmission belt, and the auxiliary plug-in abuts against the rotating wheel assembly; Alternatively, the auxiliary plug-in is mounted on the rotating wheel assembly; Alternatively, a positioning hole is provided on the rotating wheel assembly, and the auxiliary plug-in is used to be plugged into the positioning hole.

13. A three-dimensional printing device, characterized in that: The device comprises an adjustment device as claimed in any one of claims 1 to 12.

14. The three-dimensional printing device according to claim 13, characterized in that: The three-dimensional printing device also includes: The main body, the driving mechanism, the transmission belt and the functional parts; The driving mechanism and the adjusting device are both connected to the main body, the transmission belt is wound around the driving mechanism and the rotating wheel assembly, and the functional part is connected to the transmission belt; The driving mechanism is used to drive the transmission belt to drive the functional component to move.

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