3D printer consumable allowance metering device and metering method thereof

Abstract

The invention discloses a 3D printer consumable allowance metering device and a metering method thereof, and relates to the technical field of 3D printing, the 3D printer consumable allowance metering device comprises a control panel, one side of the control panel is fixedly connected with a display screen, and one side of the display screen is provided with a metering assembly. According to the metering device, one side of the pressure sensor is embedded with the metering rod, the metering rod is inserted into the consumable assembly in a penetrating mode, the metering rod can assist in installation of the consumable assembly in the metering device body, the supporting plate can support the bottom of the consumable assembly, and the pressure sensor can detect the weight change of the consumable assembly; the positions of the remaining consumables can be detected through movement of the infrared distance measuring sensor, through double judgment, the accuracy of consumable remaining metering can be improved, metering errors can be reduced, flowing of air in the meter body can be accelerated through the draught fan and the drying plate, and therefore drying treatment on the consumables is achieved, the moisture content of the consumables is reduced, and the working efficiency of the consumables is improved. And the use effect of the consumables is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a 3D printer consumables remaining metering device and a metering method thereof. Background Art

[0002] 3D printing, also known as additive manufacturing technology, is a technology that manufactures physical parts based on three-dimensional CAD data by adding materials layer by layer. The consumables of 3D printing refer to the various materials used to make objects in the 3D printing process.

[0003] For example, Chinese patent CN117261223A discloses an extruder structure for automatically detecting material breakage and blockage and a 3D printer including the same, including an extruder body, a feed port, a material breakage detection mechanism, a material outlet and a stress sensing device; the material breakage detection mechanism includes a detection unit and a feedback unit, the detection unit includes a mounting seat 1, a contact spring and a consumable metering mechanism, a needle roller is arranged on the consumable metering mechanism, a contact ball is connected to one end of the contact spring close to the needle roller, when the consumable material is broken or lacks material, the contact ball contacts the needle roller, the feedback unit is connected to the detection unit, and the stress sensing device includes a mounting seat 2 installed at the material outlet, and a plurality of strain gauges are arranged on the surface of the mounting seat 2.

[0004] In the above patent, although the problem of printing failure caused by material blockage is solved by the consumable metering mechanism and the active extrusion wheel, when the consumable length is calculated using a meter counter, there is an error between the angle of rotation of the needle and the extrusion length of the consumable. When the remaining consumable is calculated only by the meter counter, the calculation result is not accurate enough. Summary of the invention

[0005] The purpose of the present invention is to provide a 3D printer consumables remaining measuring device and a measuring method thereof, so as to solve the problem raised in the above background technology that when the consumables length is calculated using a meter counter, there is an error between the angle of rotation of the needle and the consumables extrusion length, and the calculation result is not accurate enough when the consumables remaining is calculated only by the meter counter.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a 3D printer consumables remaining metering device, comprising a control panel, a display screen is fixedly connected to one side of the control panel, a metering assembly is arranged on one side of the display screen, the metering assembly comprises a meter body, a metering rod and a collar, one side of the meter body is fixedly connected to the control panel, one side of the control panel is fixedly connected to the metering rod, a connecting piece is embedded inside the metering rod, the connecting piece is electrically connected to a pressure sensor, one side of the pressure sensor is embedded with an outer ring surface of the metering rod, the metering rod is inserted through the collar, a consumables assembly is inserted through the outside of the collar, and the collar is rotatably connected to the metering rod; A metering mechanism is installed on one side of the consumable assembly, and the metering mechanism includes a motor, a V-belt and a lead screw. A metering plate is fixedly connected to one side of the motor, one side of the metering plate is engaged with the consumable assembly, and one side of the metering plate is slidably connected to a guide bar, one side of the guide bar is fixedly connected to an infrared ranging sensor, the guide bar is connected to the lead screw through a thread, and the two lead screws are connected through a V-belt transmission, and one end of one of the lead screws is fixedly connected to the output shaft of the motor.

[0007] Preferably, a limiting member is inserted into one end of the metering rod, one side of the limiting member is slidably connected to the metering device body, one side of the limiting member is fixedly connected to a back plate, and one side of the back plate is snap-connected to the metering device body.

[0008] Preferably, a detection port is opened on one side of the consumable assembly, an arc-shaped bar is engaged on one side of the consumable assembly, and one side of the arc-shaped bar is fixedly connected to the metering plate.

[0009] Preferably, a support assembly is provided on one side of the consumable assembly, and the support assembly includes a support plate, a buffer block and a guide roller. A spring is fixedly connected to the bottom of the support plate, and one end of the spring is fixedly connected to the inner wall of the meter body.

[0010] Preferably, the buffer block is embedded in the support plate, one side of the buffer block overlaps with the consumable assembly, and the outer annular surface of the consumable assembly overlaps with the guide roller, one end of the guide roller is rotatably connected to the support block, and one side of the support block is fixedly connected to the support plate.

[0011] Preferably, a drying assembly is provided on one side of the support plate, and the drying assembly includes a drying plate, a fan and a support frame. One side of the drying plate is fixedly connected to the fan through a pipeline, and one side of the fan is fixedly connected to the meter body.

[0012] Preferably, one side of the drying plate is fixedly connected to the support frame, one side of the support frame is fixedly connected to a side plate, and one side of the side plate is slidably connected to the support plate.

[0013] Preferably, a second mounting member is fixedly connected to one side of the meter body, an extension bar is fixedly connected to one side of the second mounting member, and mounting holes are provided on both the extension bar and the second mounting member.

[0014] Preferably, a limiting rod is fixedly connected to one side of the meter body, the limiting rod is threadedly connected to a threaded rod, the threaded rod is threadedly connected to a mounting member 1, one side of the mounting member 1 is slidably connected to the meter body, and one side of the mounting member 1 is fixedly connected to a clamping plate.

[0015] A measuring method for a 3D printer consumables remaining measuring device, comprising the following steps: S1. First, select the installation direction of the entire device. When the meter body is installed vertically, use the second mounting piece and the extension bar to assist in fixing the meter body. When the meter body is installed horizontally, use the first mounting piece and the clamping plate to assist in fixing the right side of the meter body so that the meter body is connected to the printer. S2, separate the back plate from one side of the meter body, put the consumable assembly into the meter body, close the back plate, at this time the meter body is sleeved on the outside of the collar, the consumable end of the consumable assembly passes through the through hole on the top of the meter body, and when the consumable is used, the consumable assembly can rotate on the axis of the collar; S3. When the consumable assembly does not rotate, the consumable assembly applies force to the collar, and the collar presses the pressure sensor, and transmits the pressure value obtained by the pressure sensor to the control terminal. The control terminal obtains the overall weight of the current consumable assembly and the consumables according to the pressure change on the pressure sensor; S4, the motor drives the lead screw to rotate, so that the infrared distance sensor moves along the lead screw, and the infrared distance sensor is used to detect the position of the consumables on the consumable assembly, and the position of the infrared distance sensor at this time is recorded. According to the corresponding scale on the metering plate, the remaining consumable amount can be obtained; S5. After the metering is completed, the consumables can continue to be used. When the consumables are in use, the fan can send air into the drying plate, and the air is discharged through the ventilation holes on one side of the drying plate to dry the consumables. If the consumables are used up, the alarm on the display screen will sound an alarm.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, one side of the pressure sensor is engaged with the metering rod, and the metering rod is inserted into the consumable assembly. The metering rod can assist in the installation of the consumable assembly inside the metering device body, and the support plate can be used to support the bottom of the consumable assembly. The pressure sensor can detect the weight change of the consumable assembly, and the movement of the infrared ranging sensor can detect the position of the remaining consumables. Through double judgment, the accuracy of the consumable remaining measurement can be improved and the measurement error can be reduced.

[0017] 2. In the present invention, one side of the side plate is fixedly connected to the meter body, and the side plate is fixedly connected to the support frame. The support frame can support one side of the drying plate to improve the stability of the drying plate during use. The fan and the drying plate can accelerate the flow of air inside the meter body, thereby achieving drying of the consumables, reducing the moisture content of the consumables, and ensuring the use effect of the consumables.

[0018] 3. In the present invention, one side of the extension bar is fixedly connected to the second mounting member, and the second mounting member is connected to the meter body by bolts. The second mounting member and the extension bar can assist in the installation of the bottom of the meter body, and the limit rod can be used to guide the movement of the threaded rod. The distance between the two clamping plates can be adjusted to facilitate the installation and fixation of the right side of the meter body, thereby changing the installation direction of the meter body and improving the convenience of connecting the meter body with the printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a 3D printer consumables remaining metering device according to the present invention; Figure 2 This is a schematic diagram of the installation of a clamping plate structure of a 3D printer consumables remaining metering device of the present invention; Figure 3 This is a schematic diagram of the back plate structure installation of a 3D printer consumables remaining metering device of the present invention; Figure 4 This is a schematic diagram of the installation of a spring structure of a 3D printer consumables remaining metering device of the present invention; Figure 5 It is a schematic diagram of the connection structure between the meter body and the limiter of a 3D printer consumables remaining metering device of the present invention; Figure 6 This is a schematic diagram of the installation of a buffer block structure of a 3D printer consumables remaining metering device of the present invention; Figure 7 A schematic diagram of the installation of a V-belt structure of a 3D printer consumables remaining metering device according to the present invention; Figure 8 The present invention is a schematic diagram of the installation of a connector structure of a 3D printer consumables remaining metering device.

[0020] In the figure: 1. Measuring component; 11. Measuring instrument body; 12. Consumable component; 13. Measuring rod; 131. Pressure sensor; 132. Connector; 14. Support component; 141. Support plate; 142. Spring; 143. Buffer block; 144. Guide roller; 15. Measuring mechanism; 151. Motor; 152. Measuring plate; 153. V-belt; 154. Infrared ranging sensor; 155. Arc strip; 156. Lead screw; 16. Limiting piece; 17. Ring; 18. Back plate; 2. Control panel; 21. Display screen; 3. Mounting part 1; 31. Limiting rod; 32. Threaded rod; 33. Clamping plate; 4. Mounting part 2; 41. Extension strip; 5. Drying component; 51. Drying plate; 52. Fan; 53. Support frame; 54. Side plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Reference Figure 1 - Figure 8 As shown: a 3D printer consumables remaining metering device, including a control panel 2, a display screen 21 is fixedly connected to one side of the control panel 2, a metering component 1 is arranged on one side of the display screen 21, the metering component 1 includes a metering device body 11, a metering rod 13 and a sleeve ring 17, one side of the metering device body 11 is fixedly connected to the control panel 2, one side of the control panel 2 is fixedly connected to the metering rod 13, a connecting piece 132 is embedded in the metering rod 13, the connecting piece 132 is electrically connected to a pressure sensor 131, one side of the pressure sensor 131 is embedded with the outer ring surface of the metering rod 13, the metering rod 13 is inserted through the sleeve ring 17, the consumables component 12 is inserted through the outside of the sleeve ring 17, the sleeve ring 17 is rotatably connected to the metering rod 13, one end of the metering rod 13 is inserted with a limiting member 16, one side of the limiting member 16 is slidably connected to the metering device body 11, one side of the limiting member 16 is fixedly connected to a back plate 18, and one side of the back plate 18 is snap-connected to the metering device body 11; A metering mechanism 15 is installed on one side of the consumable assembly 12, and the metering mechanism 15 includes a motor 151, a V-belt 153 and a lead screw 156. A metering plate 152 is fixedly connected to one side of the motor 151, and one side of the metering plate 152 is engaged with the consumable assembly 12, and a guide bar is slidably connected to one side of the metering plate 152, and an infrared ranging sensor 154 is fixedly connected to one side of the guide bar, and the guide bar is connected to the lead screw 156 through a thread. The two lead screws 156 are connected by a V-belt 153, and one end of one of the lead screws 156 is fixedly connected to the output shaft of the motor 151. A detection port is opened on one side of the consumable assembly 12, and an arc bar 155 is engaged with one side of the consumable assembly 12, and one side of the arc bar 155 is fixedly connected to the metering plate 152.

[0023] In this embodiment, the display screen 21 can be used to shield and protect one side of the meter body 11, the use of the motor 151 can be controlled by the control key on the display screen 21, and the connection of multiple pressure sensors 131 can be realized by the connector 132. The pressure sensors 131 are distributed at 120° intervals. The connection between the external power supply and the pressure sensor 131 can be realized by the connector 132. The weight change of the consumable assembly 12 can be detected by the pressure sensor 131, thereby assisting in the calculation of the consumable usage and the remaining amount. The consumable assembly 12 can be supported by the metering rod 13 and the collar 17, thereby improving the stability of the consumable assembly 12 placed inside the meter body 11. The limiter 16 can be used to support and limit one end of the metering rod 13, thereby improving the stability of the metering rod 13 when in use. The back plate 18 and the limiter 16 are detachable, which is convenient for putting the consumable assembly 12 into and taking it out of the meter body 11. The arc strip 155 can be used to connect multiple metering plates 152. The engagement of the arc strip 155 with the consumable assembly 12 can assist the installation of the metering plate 152 on one side of the consumable assembly 12, thereby improving the stability of the fan 52 during use. The motor 151 is used to drive the lead screw 156 to rotate, providing power for the rotation of the lead screw 156. At the same time, the V-belt 153 can drive the two lead screws 156 to rotate synchronously, thereby improving the stability of the infrared ranging sensor 154 during movement, thereby adjusting the use position of the infrared ranging sensor 154, and facilitating the use of the infrared ranging sensor 154 to detect consumables at different positions, thereby assisting in the judgment and measurement of the remaining consumables, and improving the accuracy of the measurement of the remaining consumables.

[0024] Embodiment 2: According to Figure 1 - Figure 8 As shown, a support assembly 14 is provided on one side of the consumable assembly 12, and the support assembly 14 includes a support plate 141, a buffer block 143 and a guide roller 144. A spring 142 is fixedly connected to the bottom of the support plate 141, and one end of the spring 142 is fixedly connected to the inner wall of the meter body 11. The buffer block 143 is engaged with the support plate 141, and one side of the buffer block 143 overlaps with the consumable assembly 12, and the outer annular surface of the consumable assembly 12 overlaps with the guide roller 144. One end of the guide roller 144 is rotatably connected with the support block, and one side of the support block is fixedly connected to the support plate 141. A drying assembly 5 is provided on one side of the support plate 141, and the drying assembly 5 includes a drying plate 51, a fan 52 and a support frame 53. One side of the drying plate 51 is fixedly connected to the fan 52 through a pipeline, and one side of the fan 52 is fixedly connected to the meter body 11. One side of the drying plate 51 is fixedly connected to the support frame 53. One side of the support frame 53 is fixedly connected to a side plate 54, and one side of the side plate 54 is slidably connected to the support plate 141.

[0025] A mounting part 24 is fixedly connected to one side of the meter body 11, an extension bar 41 is fixedly connected to one side of the mounting part 24, mounting holes are provided on the extension bar 41 and the mounting part 24, a limit rod 31 is fixedly connected to one side of the meter body 11, the limit rod 31 is threadedly connected to a threaded rod 32, the threaded rod 32 is threadedly connected to a mounting part 13, one side of the mounting part 13 is slidably connected to the meter body 11, and a clamping plate 33 is fixedly connected to one side of the mounting part 13.

[0026] In this embodiment, the support plate 141 can be used to support the bottom of the consumable assembly 12, and the two guide rollers 144 can limit the installation of the consumable assembly 12, thereby reducing the position deviation of the consumable assembly 12 when it is installed at the bottom of the metering device body 11. The spring 142 can buffer the bottom of the support plate 141 and assist the subsequent upward reset of the support plate 141. When the support plate 141 is raised or lowered, the side plate 54 can guide the movement of the support plate 141, thereby improving the stability of the movement of the support plate 141. At the same time, the support plate 141 can also support the bottom of the support block, which is convenient for the stable installation and use of the support block and the guide roller 144 on the top of the support plate 141. The rotation of the guide roller 144 can assist the rotation of the consumable assembly 12, thereby reducing the position deviation of the consumable assembly 12 on the metering rod 13 when it rotates, and improving the stability of the consumable assembly 12 when it rotates. At the same time, a support frame 53 is installed on the top of the side plate 54, and one side of the support frame 53 is connected to the drying plate 51. The support frame 53 can be used to connect the drying plate 51 and the side plate 54, which is convenient for the stable use of the drying plate 51 on one side of the consumable assembly 12. The inclined drying plate 51 can increase the contact area between the air and the consumables on the consumable assembly 12, thereby accelerating the evaporation of moisture on the surface of the consumables, achieving drying of the consumables, and ensuring the use effect of the consumables; The mounting member 24 can be used to assist in fixing the extension bar 41 at the bottom of the meter body 11. The mounting member 24 and the extension bar 41 can assist in connecting the bottom of the meter body 11 to the printer. By rotating the threaded rod 32, the clamping plate 33 can be driven to slide along one side of the meter body 11, thereby changing the distance between the two clamping plates 33. The two clamping plates 33 are used to clamp the installation position, thereby realizing the installation of the right side of the meter body 11. The bottom or right side of the entire device can be connected to the printer, and installation and disassembly are relatively convenient.

[0027] Embodiment 3: A measuring method for a 3D printer consumables remaining measuring device, comprising the following steps: Step 1: First, select the installation direction of the entire device. When the meter body 11 is installed vertically, use the second mounting piece 4 and the extension bar 41 to assist in fixing the meter body 11. When the meter body 11 is installed horizontally, use the first mounting piece 3 and the clamping plate 33 to assist in fixing the right side of the meter body 11, so that the meter body 11 is connected to the printer. Step 2: Separate the back plate 18 from one side of the meter body 11, put the consumable assembly 12 into the meter body 11, close the back plate 18, and then the meter body 11 is sleeved on the outside of the collar 17. The consumable end of the consumable assembly 12 passes through the through hole at the top of the meter body 11. When the consumable is used, the consumable assembly 12 can rotate on the axis of the collar 17. Step 3: When the consumable assembly 12 does not rotate, the consumable assembly 12 applies force to the collar 17, and the collar 17 squeezes the pressure sensor 131, and transmits the pressure value obtained by the pressure sensor 131 to the control terminal. The control terminal obtains the overall weight of the current consumable assembly 12 and the consumables according to the pressure change on the pressure sensor 131; Step 4: The motor 151 drives the lead screw 156 to rotate, so that the infrared distance sensor 154 moves along the lead screw 156, and the infrared distance sensor 154 is used to detect the position of the consumables on the consumable assembly 12, and the position of the infrared distance sensor 154 at this time is recorded. According to the corresponding scale on the metering plate 152, the remaining amount of consumables can be obtained; Step 5. After the metering is completed, the consumables can continue to be used. When the consumables are used, the fan 52 can send air into the drying plate 51, and the air is discharged through the ventilation holes on one side of the drying plate 51 to dry the consumables. If the consumables are used up, the alarm on the display screen 21 will sound an alarm.

[0028] The method of using and working principle of the device are as follows: first, long foot bolts are installed on the mounting member 2 4 and the extension bar 41, which can be used to fix the bottom of the meter body 11, and the threaded rod 32 is rotated on the right side of the meter body 11, and then the nut is installed to adjust the distance between the two clamping plates 33. The clamping plate 33 and the mounting position can be used to clamp the right side of the meter body 11, and the consumable assembly 12 is placed in the meter body 11, and one side of the limiter 16 is plugged into the metering rod 13 to avoid displacement of the consumable assembly 12 during rotation. At this time, the front and rear sides of the meter body 11 are closed, and air is discharged into the drying plate 51 through the fan 52. The drying plate 51 contains a desiccant, which does not affect the exhaust of the vents, and accelerates the flow of air around the consumables. Excess air can be discharged from the top of the meter body 11, thereby achieving drying of the consumables. When the 3D printer is in use, the consumables can be discharged from the through hole on the top of the meter body 11 to realize feeding. When the consumable assembly 12 rotates, the guide roller 144 rotates with the consumable assembly 12, the support plate 141 moves downward, the spring 142 is compressed, and the buffer block 143 is squeezed by the consumable assembly 12. When the consumable assembly 12 does not rotate, the inner ring surface of the consumable assembly 12 applies pressure to the collar 17 and the pressure sensor 131. The pressure sensor 131 sends the received pressure signal to the control terminal. According to the pressure change, and the weight of the consumable assembly 12 minus the consumables is known, the weight change of the consumables can be calculated, and then the remaining amount of the consumables can be preliminarily obtained; The lead screw 156 is driven to rotate by the motor 151, and the two lead screws 156 can be driven to rotate synchronously under the drive of the V-belt 153, thereby driving the infrared distance sensor 154 to move along the metering plate 152, adjusting the use position of the infrared distance sensor 154, and using the infrared distance sensor 154 to detect the distance from the infrared distance sensor 154 to the back plate 18. If the infrared distance sensor 154 can successfully detect the distance from the back plate 18, it means that there is no obstruction between the infrared distance sensor 154 and the back plate 18, and the consumables at this time have been used up. When there is a consumable obstruction between the infrared distance sensor 154 and the back plate 18, the infrared distance sensor 154 can only detect the distance between it and the consumables, and the distance difference between the two is large. When a large difference is detected, the lead screw 156 stops rotating, and the infrared distance sensor 154 stops at this position. According to the corresponding scale set on the metering plate 152, the length of the remaining consumables can be obtained.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A 3D printer consumables remaining metering device, comprising a control panel (2), wherein one side of the control panel (2) is fixedly connected to a display screen (21), characterized in that: A metering assembly (1) is provided on one side of the display screen (21), the metering assembly (1) comprising a metering device body (11), a metering rod (13) and a collar (17); one side of the metering device body (11) is fixedly connected to the control panel (2); one side of the control panel (2) is fixedly connected to the metering rod (13); a connecting piece (132) is embedded inside the metering rod (13); the connecting piece (132) is electrically connected to a pressure sensor (131); one side of the pressure sensor (131) is embedded with an outer ring surface of the metering rod (13); the metering rod (13) is inserted through the collar (17); a consumable assembly (12) is inserted through the outside of the collar (17); the collar (17) and the metering rod (13) are rotatably connected; A metering mechanism (15) is installed on one side of the consumable assembly (12), the metering mechanism (15) comprising a motor (151), a V-belt (153) and a lead screw (156); a metering plate (152) is fixedly connected to one side of the motor (151); one side of the metering plate (152) is engaged with the consumable assembly (12); a guide bar is slidably connected to one side of the metering plate (152); an infrared distance measuring sensor (154) is fixedly connected to one side of the guide bar; the guide bar is connected to the lead screw (156) via a thread; the two lead screws (156) are transmission-connected via a V-belt (153); one end of one of the lead screws (156) is fixedly connected to an output shaft of the motor (151).

2. The 3D printer consumables remaining measuring device according to claim 1, characterized in that: One end of the metering rod (13) is plugged with a limit member (16), one side of the limit member (16) is slidably connected to the metering device body (11), one side of the limit member (16) is fixedly connected to a back plate (18), and one side of the back plate (18) is snap-connected to the metering device body (11).

3. The 3D printer consumables remaining measuring device according to claim 1, characterized in that: A detection port is provided on one side of the consumable component (12), an arc-shaped strip (155) is engaged on one side of the consumable component (12), and one side of the arc-shaped strip (155) is fixedly connected to the metering plate (152).

4. The 3D printer consumables remaining metering device according to claim 1, characterized in that: A support assembly (14) is provided on one side of the consumable assembly (12); the support assembly (14) comprises a support plate (141), a buffer block (143) and a guide roller (144); a spring (142) is fixedly connected to the bottom of the support plate (141); one end of the spring (142) is fixedly connected to the inner wall of the meter body (11).

5. The 3D printer consumables remaining measuring device according to claim 4, characterized in that: The buffer block (143) is engaged with the support plate (141); one side of the buffer block (143) overlaps with the consumable assembly (12); and the outer annular surface of the consumable assembly (12) overlaps with the guide roller (144); one end of the guide roller (144) is rotatably connected to the support block; and one side of the support block is fixedly connected to the support plate (141).

6. The 3D printer consumables remaining measuring device according to claim 5, characterized in that: A drying assembly (5) is provided on one side of the support plate (141), the drying assembly (5) comprising a drying plate (51), a fan (52) and a support frame (53), one side of the drying plate (51) being fixedly connected to the fan (52) via a pipeline, and one side of the fan (52) being fixedly connected to the meter body (11).

7. The 3D printer consumables remaining measuring device according to claim 6, characterized in that: One side of the drying plate (51) is fixedly connected to the support frame (53), one side of the support frame (53) is fixedly connected to a side plate (54), and one side of the side plate (54) is slidably connected to the support plate (141).

8. The 3D printer consumables remaining metering device according to claim 7, characterized in that: A second mounting member (4) is fixedly connected to one side of the meter body (11), an extension bar (41) is fixedly connected to one side of the second mounting member (4), and mounting holes are provided on both the extension bar (41) and the second mounting member (4).

9. The 3D printer consumables remaining measuring device according to claim 1, characterized in that: A limiting rod (31) is fixedly connected to one side of the meter body (11); the limiting rod (31) is threadedly connected to a threaded rod (32); the threaded rod (32) is threadedly connected to a mounting member 1 (3); one side of the mounting member 1 (3) is slidably connected to the meter body (11); and one side of the mounting member 1 (3) is fixedly connected to a clamping plate (33).

10. A measuring method for a 3D printer consumables remaining measuring device, characterized in that: A 3D printer consumables remaining metering device according to any one of claims 1 to 9 is used, comprising the following steps: S1. First, the installation direction of the entire device is selected. When the meter body (11) is installed vertically, the second mounting member (4) and the extension bar (41) are used to assist in fixing the meter body (11). When the meter body (11) is installed horizontally, the first mounting member (3) and the clamping plate (33) are used to assist in fixing the right side of the meter body (11), so that the meter body (11) is connected to the printer. S2, separating the back plate (18) from one side of the meter body (11), placing the consumable assembly (12) into the meter body (11), and closing the back plate (18). At this time, the meter body (11) is sleeved on the outside of the collar (17), and the consumable end of the consumable assembly (12) passes through the through hole at the top of the meter body (11). When the consumable is used, the consumable assembly (12) can rotate on the axis of the collar (17); S3, when the consumable assembly (12) does not rotate, the consumable assembly (12) applies a force to the collar (17), and the collar (17) presses the pressure sensor (131), and transmits the pressure value obtained by the pressure sensor (131) to the control terminal, and the control terminal obtains the current overall weight of the consumable assembly (12) and the consumables according to the pressure change on the pressure sensor (131); S4, driving the lead screw (156) to rotate by the motor (151), so that the infrared distance sensor (154) moves along the lead screw (156), and using the infrared distance sensor (154) to detect the position of the consumable on the consumable assembly (12), recording the position of the infrared distance sensor (154) at this time, and obtaining the remaining amount of consumable according to the corresponding scale on the metering plate (152); S5. After the metering is completed, the consumables can continue to be used. When the consumables are used, the fan (52) can send air into the drying plate (51), and the air is discharged through the ventilation holes on one side of the drying plate (51) to dry the consumables. If the consumables are used up, the alarm on the display screen (21) sounds an alarm.

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