Printer hardware part

Abstract

The utility model discloses a printer hardware part which comprises a connecting shaft roller and a wire feeding wheel body, and a detachable connecting structure is arranged between the wire feeding wheel body and the connecting shaft roller. The connecting shaft roller is provided with an adaptive mounting structure; the wire feeding wheel body is provided with an adjustable structure. The adjustable structure is used for adjusting the distance between the two wire feeding positioning blocks according to requirements, arc-shaped positioning grooves of different specifications and sizes can be formed, printer hardware parts can be used for positioning and feeding of wires of different diameters, applicability is improved, customization cost is reduced, and production efficiency is improved. The number of the wire feeding positioning sleeves can be increased or decreased according to requirements, the wire feeding device can be used for positioning and feeding multiple wires, and adjustability and upgrading convenience are improved; by arranging the adaptive mounting structure, an external mounting structure and an internal mounting structure can be provided, different specifications and mounting structures are provided, the mounting and connecting applicability is improved, and printer hardware parts can be used for mounting and connecting different driving rods.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printer accessories, in particular to a printer hardware part. Background Art

[0002] The 3D printer extruder is used to extrude printing materials. The basic structure of the existing 3D printer extruder includes a frame, a stepper motor, a gear, a grooved bearing, a rotating arm and a spring. A feed hole is provided above the rotating arm. The rotating arm is installed on the frame by mounting screws. The stepper motor is directly connected to the gear or connected to the gear after deceleration. The grooved bearing is fixed at one end of the rotating arm. The spring is installed at the other end of the rotating arm and provides a pre-tightening elastic force for the rotating arm, so that the grooved bearing presses the gear.

[0003] Existing 3D printer extruders all rely on the tooth engagement of the wire feeding wheel, a hardware part, to apply pressure. However, the existing wire feeding wheel has a large contact area with the wire material. The wire material on the contact surface between the wire feeding wheel and the wire material is easily squeezed by the wire feeding wheel and automatically falls off, resulting in a waste of raw materials. In addition, the existing wire feeding wheel usually cannot adapt to the thickness of the wire material, and different wire feeding wheels need to be replaced according to the thickness of the wire material, which also increases the cost. In response to the above problems, people have invented patent number: CN201420764320.X, a new type of wire feeding wheel for 3D printers, which has gear teeth on its outer surface, the top of the gear teeth is pointed, the bottom of the gear teeth is arc-shaped, and the gear teeth are grooved along the axial direction of the body. Two gear teeth are provided on the outer surface of the body, and two groups of threaded holes are provided on the body. It also includes a cylindrical connecting part with a group of threaded holes, the inner wall of the connecting part is flush with the outer surface of the body, and the body is detachably connected in the connecting part, and the distance between the two groups of threaded holes along the axial direction of the body is the same as the distance between the two gear teeth along the axial direction of the body. Since two gear teeth are arranged on the outer surface of the body, the two gear teeth can be used to adapt to wires of different thicknesses respectively, which has a wider range of applications, and the connection part can block the wire to prevent the wire from spraying out. However, the hardware parts of the printer still have the following problems: 1. Its specifications are mostly fixed specifications, and cannot be adjusted according to the diameter and thickness of the wire. When it is necessary to position and feed wires of other specifications and sizes, it needs to be customized, and the applicability is low; 2. Most of the existing printer hardware parts are integral structures. When the surface cannot be removed due to wear or sticking materials, the hardware parts need to be replaced as a whole, which increases maintenance costs; 3. The installation parts of the printer hardware accessories are mostly fixed specifications, so that the printer hardware accessories can only be used for the connection of a drive rod of one specification and size, and the applicability is low. Utility Model Content

[0004] The utility model aims to provide a printer hardware part in view of the current technical deficiencies, and aims to solve the technical problems of non-adjustability and low applicability in the prior art.

[0005] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0006] A printer hardware part includes a connecting shaft roller and a wire feeding wheel body, wherein the wire feeding wheel body is arranged on the connecting shaft roller, and a detachable connecting structure is provided between the wire feeding wheel body and the connecting shaft roller; the connecting shaft roller is provided with an adaptable mounting structure; and the wire feeding wheel body is provided with an adjustable structure.

[0007] As a further improvement, the connecting shaft roller is a cylindrical structure, the connecting shaft roller includes a mounting portion and a fixing portion, the wire feeding wheel body is arranged on the fixing portion of the connecting shaft roller, and the adapter mounting structure is arranged on the mounting portion; the adapter mounting structure includes an outer mounting structure and an inner mounting structure.

[0008] As a further improvement, the outer mounting structure includes a first mounting structure, a second mounting structure and a third mounting structure, the first mounting structure is arranged on the outer side of the end of the mounting portion, the second mounting structure is arranged at one end of the first mounting structure, and the third mounting structure is arranged at the other end of the second mounting structure; the first mounting structure, the second mounting structure and the third mounting structure are all annular protrusions, and the surfaces of the annular protrusions are provided with external threads.

[0009] As a further improvement, the diameter of the third mounting structure is greater than the diameter of the second mounting structure, and the diameter of the second mounting structure is greater than the diameter of the first mounting structure; the first mounting structure, the second mounting structure and the third mounting structure are all further provided with positioning slots.

[0010] As a further improvement, the mounting portion is provided with a mounting hole, and the inner mounting structure is arranged in the mounting hole; the inner mounting structure includes a first annular protrusion, a second annular protrusion and a third annular protrusion, the first annular protrusion is arranged in the mounting hole, the second annular protrusion is arranged at the rear of the first annular protrusion, and the third annular protrusion is arranged at the rear of the second annular protrusion; the inner side surfaces of the first annular protrusion, the second annular protrusion and the third annular protrusion are all provided with internal threads.

[0011] As a further improvement, the inner diameter of the first annular protrusion is larger than the inner diameter of the second annular protrusion, and the inner diameter of the second annular protrusion is larger than the inner diameter of the third annular protrusion; the first annular protrusion, the second annular protrusion and the third annular protrusion are also provided with a positioning slot 1.

[0012] As a further improvement, the first mounting structure, the second mounting structure and the third mounting structure are also provided with positioning lock holes, and the positioning lock holes respectively pass through the first annular protrusion, the second annular protrusion and the third annular protrusion, and the positioning lock holes are used to lock and fix the screws during plug-in installation.

[0013] As a further improvement, the wire feeding wheel body is provided with a mounting hole 1; the detachable connection structure includes a plurality of slots, a plurality of insertion strips and a plurality of buckles, the plurality of slots are arranged in a circular array on the outer side surface of the fixing portion, the plurality of insertion strips are arranged in a circular array on the inner side surface of the mounting hole 1 of the wire feeding wheel body, the wire feeding wheel body is arranged on the fixing portion through the cooperation of the insertion strips and the slots; the buckle is arranged on the end of the fixing portion.

[0014] As a further improvement, the wire feeding wheel body is provided with two or more wire feeding positioning sleeves; the wire feeding positioning sleeves each include two mirror-imaged wire feeding positioning blocks, the wire feeding positioning blocks each are provided with a semi-arc positioning groove, and the semi-arc positioning grooves each are provided with teeth; the two mirror-imaged semi-arc positioning grooves constitute an arc-shaped positioning groove.

[0015] As a further improvement, the adjustable structure includes an adjusting groove and one or more sliders, the adjusting groove is arranged on the outer side surface of the wire feeding wheel body, the adjusting groove is provided with a plurality of adjusting holes, the sliders are respectively arranged at the bottom of the wire feeding positioning block, the wire feeding positioning block is connected with the adjusting groove through the slider and is fixed to the wire feeding wheel body; the wire feeding positioning blocks are also provided with threaded holes, the threaded holes pass through the sliders, and the threaded holes are provided with locking screws.

[0016] Compared with the prior art, the above one or more technical solutions in the printer hardware parts provided by the embodiment of the utility model have at least one of the following technical effects:

[0017] 1. The utility model provides an adjustable structure for adjusting the distance between the two wire feeding positioning blocks according to the needs, so as to form arc-shaped positioning grooves of different specifications and sizes, so that the hardware parts of the printer can be used for the positioning and feeding of wires of different diameters, thereby improving the applicability and reducing the customization cost. Moreover, the number of wire feeding positioning sleeves can be increased or decreased according to the needs, and can be used for the positioning and feeding of multiple wires, thus greatly improving the adjustability and the convenience of upgrading the printer later;

[0018] 2. The detachable connection structure is provided to facilitate quick installation or disassembly of the wire feeding wheel body, and is convenient for maintenance and replacement; the adjustable structure is provided to facilitate the disassembly and replacement of a single wire feeding positioning block, without the need to replace the entire hardware parts, thus reducing maintenance costs;

[0019] 3. By setting an outer mounting structure, the printer hardware parts can provide an external mounting structure, and by setting an inner mounting structure, the printer hardware parts can provide an internal mounting structure, providing different specifications and mounting structures, improving the applicability of installation and connection, so that the printer hardware parts can be used for the installation and connection of different drive rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a schematic diagram of the overall structure of the printer hardware parts of this embodiment;

[0022] Figure 2 This is a schematic diagram of the exploded hardware parts of the printer of this embodiment;

[0023] Figure 3 This is a schematic diagram of the connecting shaft roller structure of this embodiment;

[0024] Figure 4 for Figure 3 AA section diagram in. DETAILED DESCRIPTION

[0025] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.

[0026] For example, see the attached Figure 1 to Figure 4 A printer hardware part 1 includes a connecting shaft roller 2 and a wire feeding wheel body 3, wherein the wire feeding wheel body 3 is arranged on the connecting shaft roller 2, and a detachable connecting structure 4 is provided between the wire feeding wheel body 3 and the connecting shaft roller 2; the connecting shaft roller 2 is provided with an adaptable mounting structure 5; and the wire feeding wheel body 3 is provided with an adjustable structure 6.

[0027] The connecting shaft roller 2 is a cylindrical structure, and the connecting shaft roller 2 includes a mounting portion 20 and a fixing portion 21. The wire feeding wheel body 3 is arranged on the fixing portion 21 of the connecting shaft roller 2, and the adapting mounting structure 5 is arranged on the mounting portion 20; the adapting mounting structure 5 includes an outer mounting structure 50 and an inner mounting structure 51.

[0028] The outer mounting structure 50 includes a first mounting structure 500, a second mounting structure 501 and a third mounting structure 502, wherein the first mounting structure 500 is arranged on the outer side of the end of the mounting portion 20, the second mounting structure 501 is arranged at one end of the first mounting structure 500, and the third mounting structure 502 is arranged at the other end of the second mounting structure 501; the first mounting structure 500, the second mounting structure 501 and the third mounting structure 502 are all annular protrusions, and the surfaces of the annular protrusions are provided with external threads 503. The diameter of the third mounting structure 502 is greater than the diameter of the second mounting structure 501, and the diameter of the second mounting structure 501 is greater than the diameter of the first mounting structure 500; the first mounting structure 500, the second mounting structure 501 and the third mounting structure 502 are also provided with positioning slots 504, and the outer mounting structure 50 enables the printer hardware parts 1 to provide an external mounting structure, thereby improving the applicability of installation and connection, and by arranging the first mounting structure 500, the second mounting structure 501 and the third mounting structure 502 to provide external mounting structures of different specifications and sizes, the printer hardware parts 1 can be used for printers with internally threaded shafts, thereby greatly improving the applicability of installation.

[0029] The mounting portion 20 is provided with a mounting hole, and the inner mounting structure 51 is arranged in the mounting hole; the inner mounting structure 51 includes a first annular protrusion 510, a second annular protrusion 511 and a third annular protrusion 512, the first annular protrusion 510 is arranged in the mounting hole, the second annular protrusion 511 is arranged at the rear of the first annular protrusion 510, and the third annular protrusion 512 is arranged at the rear of the second annular protrusion 511; the inner side surfaces of the first annular protrusion 510, the second annular protrusion 511 and the third annular protrusion 512 are all provided with internal threads. The inner diameter of the first annular protrusion 510 is greater than the inner diameter of the second annular protrusion 511, and the inner diameter of the second annular protrusion 511 is greater than the inner diameter of the third annular protrusion 512; the first annular protrusion 510, the second annular protrusion 511 and the third annular protrusion 512 are all further provided with a positioning slot 1 513, and the inner mounting structure 51 enables the printer hardware part 1 to provide an internal mounting structure, thereby improving the applicability of installation and connection, and by providing the first annular protrusion 510, the second annular protrusion 511 and the third annular protrusion 512 to provide internal mounting structures of different specifications and sizes, the printer hardware part 1 can be used for a printer having an external thread 503 shaft, thereby greatly improving the applicability of installation.

[0030] The first mounting structure 500, the second mounting structure 501 and the third mounting structure 502 are also provided with positioning lock holes 53, and the positioning lock holes 53 respectively penetrate the first annular protrusion 510, the second annular protrusion 511 and the third annular protrusion 512, and the positioning lock holes 53 are used to lock and fix the screws during plug-in installation.

[0031] The wire feeding wheel body 3 is provided with a mounting hole 1; the detachable connecting structure 4 includes a plurality of slots 40, a plurality of inserting strips 41 and a plurality of buckles 42, the plurality of slots 40 are arranged in a circular array on the outer side of the fixing portion 21, the plurality of inserting strips 41 are arranged in a circular array on the inner side of the mounting hole 1 of the wire feeding wheel body 3, the wire feeding wheel body 3 is arranged on the fixing portion 21 through the cooperation of the inserting strips 41 and the slots 40; the buckle 42 is arranged on the end of the fixing portion 21, the detachable connecting structure 4 facilitates the quick installation or disassembly of the wire feeding wheel body 3, and facilitates maintenance and replacement.

[0032] The wire feeding wheel body 3 is provided with one or more wire feeding positioning sleeves 30; the wire feeding positioning sleeves 30 each include two mirror-imaged wire feeding positioning blocks 31, the wire feeding positioning blocks 31 each have a semi-arc positioning groove 32, and the semi-arc positioning groove 32 each has a tooth pattern 33; the two mirror-imaged semi-arc positioning grooves 32 constitute an arc positioning groove. The wire feeding wheel body 3 can be freely increased or decreased according to the number of wires to be fed, thereby improving applicability.

[0033] The adjustable structure 6 includes an adjusting slot 60 and two or more sliders 61, wherein the adjusting slot 60 is arranged on the outer side of the wire feeding wheel body 3, and the adjusting slot 60 is provided with a plurality of adjusting holes 62, and an equal distance is provided between the adjusting block 62 and the adjusting hole 62; the sliders 61 are respectively arranged at the bottom of the wire feeding positioning block 31, and the wire feeding positioning block 31 is connected with the adjusting slot 60 through the slider 61 and fixed on the wire feeding wheel body 3; the wire feeding positioning block 31 is also provided with a threaded hole 310, and the threaded hole 310 passes through the slider 61, and the threaded hole 310 is provided with a locking screw, and the adjustable structure 6 is used to adjust the distance between the two wire feeding positioning blocks 31 according to the needs, so as to form arc positioning slots of different specifications and sizes, so that the printer hardware parts 1 can be used for the positioning and feeding actions of wires of different diameters, thereby improving the applicability.

[0034] The utility model provides an adjustable structure for adjusting the distance between the two wire feeding positioning blocks according to needs, so that arc-shaped positioning grooves of different specifications and sizes can be formed, so that the hardware parts of the printer can be used for the positioning and feeding actions of wires of different diameters, thereby improving applicability and reducing customization costs, and the number of wire feeding positioning sleeves can be increased or decreased according to needs, which can be used for the positioning and feeding actions of multiple wires, greatly improving adjustability and the convenience of upgrading the subsequent printer; by providing a detachable connection structure, it is convenient to quickly install or disassemble the wire feeding wheel body, which is convenient for maintenance and replacement; in combination with the setting of an adjustable structure, it is convenient to disassemble and replace a single wire feeding positioning block, without the need to replace the entire hardware parts, thereby reducing maintenance costs; by providing an outer mounting structure, the hardware parts of the printer can provide an external mounting structure, and in combination with the setting of an inner mounting structure, the hardware parts of the printer can provide an internal mounting structure, different specifications and mounting structures are provided, the applicability of installation and connection is improved, and the hardware parts of the printer can be used for the installation and connection of different drive rods.

[0035] The present invention is not limited to the above-mentioned embodiments. Other hardware parts for printers obtained by using the same or similar structures or devices as the above-mentioned embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. A printer hardware component, characterized in that: The printer hardware parts include a connecting shaft roller and a wire feeding wheel body, the wire feeding wheel body is arranged on the connecting shaft roller, a detachable connecting structure is provided between the wire feeding wheel body and the connecting shaft roller; the connecting shaft roller is provided with an adaptable mounting structure; the wire feeding wheel body is provided with an adjustable structure.

2. The printer hardware component according to claim 1, characterized in that: The connecting shaft roller is a cylindrical structure, and the connecting shaft roller includes a mounting portion and a fixing portion. The wire feeding wheel body is arranged on the fixing portion of the connecting shaft roller, and the adapting mounting structure is arranged on the mounting portion; the adapting mounting structure includes an outer mounting structure and an inner mounting structure.

3. The printer hardware component according to claim 2, characterized in that: The outer mounting structure includes a first mounting structure, a second mounting structure and a third mounting structure, wherein the first mounting structure is arranged outside the end of the mounting portion, the second mounting structure is arranged at one end of the first mounting structure, and the third mounting structure is arranged at the other end of the second mounting structure; The first mounting structure, the second mounting structure and the third mounting structure are all annular protrusions, and the surfaces of the annular protrusions are all provided with external threads.

4. The printer hardware component according to claim 3, characterized in that: The diameter of the third mounting structure is greater than that of the second mounting structure, and the diameter of the second mounting structure is greater than that of the first mounting structure; the first mounting structure, the second mounting structure and the third mounting structure are all further provided with positioning slots.

5. The printer hardware component according to claim 4, characterized in that: The mounting portion is provided with a mounting hole, and the inner mounting structure is arranged in the mounting hole; the inner mounting structure includes a first annular protrusion, a second annular protrusion and a third annular protrusion, the first annular protrusion is arranged in the mounting hole, the second annular protrusion is arranged at the rear of the first annular protrusion, and the third annular protrusion is arranged at the rear of the second annular protrusion; the inner side surfaces of the first annular protrusion, the second annular protrusion and the third annular protrusion are all provided with internal threads.

6. The printer hardware component according to claim 5, characterized in that: The inner diameter of the first annular protrusion is greater than the inner diameter of the second annular protrusion, and the inner diameter of the second annular protrusion is greater than the inner diameter of the third annular protrusion; the first annular protrusion, the second annular protrusion and the third annular protrusion are all further provided with a positioning slot 1.

7. The printer hardware component according to claim 6, characterized in that: The first mounting structure, the second mounting structure and the third mounting structure are also provided with positioning lock holes, which respectively penetrate the first annular protrusion, the second annular protrusion and the third annular protrusion, and are used to lock and fix the screws during plug-in installation.

8. The printer hardware component according to claim 7, characterized in that: The wire feeding wheel body is provided with a mounting hole 1; the detachable connection structure includes a plurality of slots, a plurality of insertion strips and a plurality of buckles, the plurality of slots are arranged in a circular array on the outer side of the fixing portion, the plurality of insertion strips are arranged in a circular array on the inner side of the mounting hole 1 of the wire feeding wheel body, the wire feeding wheel body is arranged on the fixing portion through the cooperation of the insertion strips and the slots; the buckle is arranged on the end of the fixing portion.

9. The printer hardware component according to claim 8, characterized in that: The wire feeding wheel body is provided with one or more wire feeding positioning sleeves; the wire feeding positioning sleeves each include two mirror-imaged wire feeding positioning blocks, the wire feeding positioning blocks each have a semi-arc positioning groove, and the semi-arc positioning grooves each have a tooth pattern; the two mirror-imaged semi-arc positioning grooves constitute an arc positioning groove.

10. The printer hardware component according to claim 9, characterized in that: The adjustable structure includes an adjusting slot and two or more sliders, wherein the adjusting slot is arranged on the outer side of the wire feeding wheel body, the adjusting slot is provided with a plurality of adjusting holes, the sliders are respectively arranged at the bottom of the wire feeding positioning block, the wire feeding positioning block is connected with the adjusting slot through the slider and is fixed to the wire feeding wheel body; the wire feeding positioning blocks are also provided with threaded holes, the threaded holes pass through the sliders, and the threaded holes are provided with locking screws.

Images