Automatic rack

Abstract

The utility model discloses an automatic material frame which comprises a motor, a thrust bearing is connected outside an output shaft of the motor in a sleeved mode, a consumable disc is arranged at the top of the thrust bearing, a shaft pin connected with the output shaft of the motor is arranged inside the lower portion of the consumable disc, and a material frame body is fixedly arranged on the inner wall of the top of the consumable disc. A wire is wound on the material frame, and a magnetic damping tension controller is arranged at the end, away from the motor, of the wire. When the wire is pressed and the like, the motor provides certain assistance, and compared with a common material frame, the wire feeding mode can be flexibly adjusted according to the wire feeding condition of the material disc, so that the phenomena of wire feeding slipping and unstable discharging are reduced, and continuous and stable wire feeding is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printers, in particular to an automatic material rack. Background Art

[0002] At present, the consumable material tray rack generally adopts the method of setting a pulley mechanism at the bottom, such as the patent with application number 2023208017096, in which a rotating pulley is set on the tray bracket, and the pulley is a concave structure, which can correspond to the limited position of the tray body of the consumable tray. After the consumable tray is installed, it is pulled by the wire feeder, and the consumable tray and the pulley rotate synchronously to achieve the purpose of continuous wire feeding. Or as in the patent with application number 2018101078618, there is a U-shaped groove on the support seat, and the roller is placed in the U-shaped groove of the two support seats. The consumable tray is placed on the roller, and the roller rotates through the wire feeder to achieve the purpose of continuous wire feeding.

[0003] However, when the wire on the consumable spool is pressed, the traction force of the wire feeder is difficult to complete the smooth wire drawing, and the wire feeding of the material rack is prone to instability and the wire feeder slipping. Therefore, it is urgent to design an automatic material rack to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic material rack to solve the above-mentioned deficiencies in the prior art.

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

[0006] The automatic material rack includes a motor, the output shaft of the motor is sleeved with a thrust bearing, and a consumable tray is arranged on the top of the thrust bearing, and an axle pin connected to the output shaft of the motor is arranged inside the lower part of the consumable tray, and a material rack is fixedly arranged on the inner wall of the top of the consumable tray, the material rack is wound with wire, and a magnetic damping tension controller is arranged at the end of the wire away from the motor.

[0007] Preferably, a central tube is fixedly mounted on the inner wall of the top of the consumable tray, and the material rack is fixedly sleeved on the outside of the central tube.

[0008] Preferably, a center hole is formed on the outer wall of the bottom of the consumable tray, and an axle pin is inserted into the center hole.

[0009] Preferably, the thrust bearing, consumable tray and material rack are all coaxially mounted structures.

[0010] Preferably, the shaft pin is a cylindrical structure, and a motor shaft matching hole that matches with the output shaft of the motor is provided on the outer surface of one side of the shaft pin, a screw hole 1 that penetrates the structure is provided at one end of the shaft pin, and a threaded hole 2 is provided on the outer wall of one side of the shaft pin.

[0011] Preferably, a raised outer ring is provided at the upper edge of the consumables tray, and the height of the raised outer ring is 5-10 cm.

[0012] In the above technical solution, the automatic material rack provided by the utility model has the following beneficial effects:

[0013] When the wire is pressed, the motor provides a certain amount of assistance. It has a simple structure, low cost and easy installation. Compared with general material racks, it can flexibly adjust the wire feeding method according to the wire feeding situation of the material tray, thereby reducing wire slippage and unstable material discharge, and achieving continuous and stable wire feeding. A thrust bearing is installed between the material rack and the motor, and the rotation mode of the material rack is changed from the common sliding friction to rolling friction, which greatly reduces the wire feeding resistance and reduces the wire slippage. The thrust bearing and the material rack are installed coaxially, and the resistance shaft is on the central axis. The resistance torque is small, and the traction required to rotate the material tray is smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A structural schematic diagram of an automatic material rack embodiment of the utility model.

[0016] Figure 2 A schematic diagram of the thrust bearing structure provided for an automatic material rack embodiment of the utility model.

[0017] Figure 3 A schematic diagram of the installation structure of the shaft pin inside the consumable tray provided in the automatic material rack embodiment of the utility model.

[0018] Figure 4 A schematic diagram of the installation structure of the consumable tray and the center tube provided for the automatic material rack embodiment of the utility model.

[0019] Figure 5 A schematic diagram of the shaft pin structure provided for an embodiment of the automatic material rack of the utility model.

[0020] 1 motor, 2 thrust bearing, 3 consumable tray, 4 material rack, 5 fixed tray, 6 center tube, 7 wire, 8 magnetic damping tension controller, 9 shaft pin, 10 screw hole 1, 11 screw hole 2, 12 motor shaft matching hole. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-5 As shown, the automatic material rack provided by the embodiment of the utility model includes a motor 1, a thrust bearing 2 is sleeved on the outside of the output shaft of the motor 1, and a consumable tray 3 is arranged on the top of the thrust bearing 2, and an axle pin 9 connected to the output shaft of the motor 1 is arranged inside the lower part of the consumable tray 3, a material rack 4 is fixedly arranged on the inner wall of the top of the consumable tray 3, a wire 7 is wound on the material rack 4, and a magnetic damping tension controller 8 is arranged at the end of the wire 7 away from the motor 1.

[0023] Specifically, in this embodiment, a motor 1 is included, a thrust bearing 2 is sleeved on the outside of the output shaft of the motor 1, and a consumable disk 3 is arranged on the top of the thrust bearing 2. The consumable disk 3 is placed above the thrust bearing 2, ensuring that the consumable disk 3 can flexibly rotate above the motor 1 through the thrust bearing 2, and the rotation mode of the material rack is changed from the common sliding friction to rolling friction, which greatly reduces the wire feeding resistance and reduces the wire slippage. An axle pin 9 connected to the output shaft of the motor 1 is arranged inside the lower part of the consumable disk 3, and a material rack 4 is fixedly arranged on the inner wall of the top of the consumable disk 3, and a wire 7 is wound on the material rack 4, and a magnetic damping tension controller 8 is arranged at the end of the wire 7 away from the motor 1. The magnetic damping tension controller 8 is a device that transmits constant torque using a magnetic field as a medium. The damping disk does not contact the magnet and there is no sliding friction, so the service life is long and the tension control is extremely stable.

[0024] In the automatic material rack provided by the utility model, the wire 7 is pulled out from the consumable disk 3 through the traction force of the wire feeder via the magnetic damping tension controller 8, and the magnetic damping tension controller 8 measures the wire feeding tension. When the tension meets the requirement for smooth wire feeding (the tension is less than the traction force of the wire feeder), the wire is continuously fed through the traction force of the wire feeder; when the magnetic damping tension controller 8 measures that the wire feeding tension is too large and the wire feeding is not smooth (the tension is greater than or equal to the traction force of the wire feeder), the motor 1 installed under the consumable disk 3 is started, and the motor shaft is connected to the shaft pin 9 of the consumable disk 3, thereby driving the consumable disk 3 to rotate to achieve the purpose of wire feeding, until the tension measured by the magnetic damping tension controller 8 meets the requirement for smooth wire feeding, at which time the motor 1 is shut down, and the wire drawing continues through the traction force of the wire feeder.

[0025] As an embodiment provided by the utility model, a center tube 6 is fixedly installed on the inner wall of the top of the consumable tray 3, and the material rack 4 is fixedly sleeved on the outside of the center tube 6. The center tube 6 is fixedly connected to the consumable tray 3, and the material rack 4 is fixed to the outside of the center tube 6. The rolled wire 7 is set on the material rack 4, and the feeding of the wire 7 is realized under the rotation of the material rack 4.

[0026] In another embodiment provided by the utility model, a center hole is opened on the outer wall of the bottom of the consumable tray 3, and the axle pin 9 is inserted into the inside of the center hole. The axle pin 9 is fixedly connected to the center hole 3. As the motor shaft drives the axle pin 9 to rotate, the consumable tray 3 can be driven to rotate.

[0027] As another embodiment provided by the utility model, the thrust bearing 2, the consumable tray 3 and the material rack 4 are all coaxially installed structures, the thrust bearing 2, the consumable tray 3 and the material rack 4 are coaxially installed, the resistance acting shaft is on the central axis, the resistance acting torque is small, and the traction force required to rotate the material tray is smaller.

[0028] As another embodiment provided by the utility model, the axle pin 9 is a cylindrical structure, and the outer surface of one side of the axle pin 9 is provided with a motor shaft matching hole 12 that matches with the output shaft of the motor 1, a screw hole 10 with a through structure is opened at one end of the axle pin 9, and a threaded hole 2 11 is opened on the outer wall of one side of the axle pin 9. When the shaft of the motor is inserted into the motor shaft matching hole 12 of the axle pin 9, a screw is inserted into the inside of the screw hole 10 and the screw hole 2 11 to fix it, and then the axle pin 9 is fixedly inserted into the inside of the center hole to realize the fixed connection between the motor shaft and the consumable disk 3.

[0029] In another embodiment provided by the utility model, a raised outer ring is provided at the upper edge of the consumable tray 3, and the height of the raised outer ring is 5-10 cm. The height of the raised outer ring is preferably 8 cm to prevent the consumables from falling off the consumable tray 3 when they are loose.

[0030] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Automatic material rack, characterized in that: The invention comprises a motor (1), wherein the output shaft of the motor (1) is sleeved with a thrust bearing (2), and a consumable disc (3) is arranged on the top of the thrust bearing (2), and an axle pin (9) connected to the output shaft of the motor (1) is arranged inside the lower part of the consumable disc (3), and a material rack (4) is fixedly arranged on the inner wall of the top of the consumable disc (3), a wire (7) is wound on the material rack (4), and a magnetic damping tension controller (8) is arranged at the end of the wire (7) away from the motor (1).

2. The automatic rack according to claim 1, characterized in that: A central tube (6) is fixedly mounted on the inner wall of the top of the consumable tray (3), and the material rack (4) is fixedly sleeved on the outside of the central tube (6).

3. The automatic rack according to claim 1, characterized in that: A central hole is formed on the outer wall of the bottom of the consumable tray (3), and an axle pin (9) is inserted into the interior of the central hole.

4. The automatic rack according to claim 1, characterized in that: The thrust bearing (2), consumable material tray (3) and material rack (4) are all coaxially mounted structures.

5. The automatic rack according to claim 1, characterized in that: The shaft pin (9) is a cylindrical structure, and a motor shaft matching hole (12) matching with the output shaft of the motor (1) is provided on the outer surface of one side of the shaft pin (9), a screw hole (10) penetrating the structure is provided at one end of the shaft pin (9), and a threaded hole (11) is provided on the outer wall of one side of the shaft pin (9).

6. The automatic material rack according to claim 1, characterized in that: A raised outer ring is provided at the upper edge of the consumables tray (3), and the height of the raised outer ring is 5-10 cm.

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