CN216032521U

CN216032521U - Work or material rest and 3D printer

Info

Publication number: CN216032521U
Application number: CN202121429290.3U
Authority: CN
Inventors: 刘辉林; 陈绪福
Original assignee: Shenzhen Chuangxiang Sandi Technology Co ltd
Current assignee: Shenzhen Chuangxiang Sandi Technology Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-03-15
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a material rack and a 3D printer, and relates to the technical field of 3D printers. This work or material rest is used for providing the material for the 3D printer, and the work or material rest includes support frame and feed cylinder group, and the support frame is fixed in on the 3D printer. The charging barrel group is arranged on the support frame and at least comprises a first charging barrel and a second charging barrel, one end of the first charging barrel is fixed on the support frame, and the second charging barrel is sleeved in the first charging barrel and can selectively extend out of the first charging barrel or retract into the first charging barrel. The inner wall of the first charging barrel is provided with a first internal thread, the outer wall of the second charging barrel is provided with a first external thread, and the first charging barrel is in threaded fit connection with the second charging barrel. According to the material rack provided by the utility model, the second material barrel can be selectively extended out of the first material barrel or retracted into the first material barrel according to the use requirement, the structure is simple, and the occupied space is small; and the operation is convenient, and the applicability is wider.

Description

Work or material rest and 3D printer

Technical Field

The utility model relates to the technical field of 3D printers, in particular to a material rack and a 3D printer.

Background

Along with the function of the 3D printer is more and more perfect, the requirement of the user on the appearance harmony of the 3D printer and the application universality of the 3D printer is higher and higher.

In the 3D printer, need use the work or material rest that provides the material for the extrusion device of 3D printer. When the 3D printer uses two extrusion devices, two sets of material racks are generally required to be equipped. The two sets of material racks occupy large space, so that the 3D printer is complex in structure and heavy in appearance, and meanwhile, the workload is increased for a user.

SUMMERY OF THE UTILITY MODEL

One object of the present invention is to propose a stack which is simple in structure and easy to operate; and is more widely applicable.

Another objective of the present invention is to provide a 3D printer, which has a simple structure, occupies a small space, and has strong versatility.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a work or material rest for provide the material for the 3D printer, it includes:

the support frame is fixed on the 3D printer;

the material cylinder group is arranged on the supporting frame and at least comprises a first material cylinder and a second material cylinder, one end of the first material cylinder is fixed on the supporting frame, and the second material cylinder is sleeved in the first material cylinder and can be selectively extended out of the first material cylinder or retracted into the first material cylinder;

the inner wall of the first charging barrel is provided with a first internal thread, the outer wall of the second charging barrel is provided with a first external thread, and the first charging barrel is in threaded fit connection with the second charging barrel.

As a preferable scheme of the material rack, the outer wall of the second material barrel is arranged in a step shape and comprises a first cylinder and a second cylinder, the first cylinder is arranged close to the support frame, the diameter of the first cylinder is larger than that of the second cylinder, the first external thread is arranged on the outer wall of the first cylinder, and the length of the first internal thread is the same as that of the first material barrel. The entire inner wall of the first charging barrel is provided with a first internal thread, and the outer wall part of the second charging barrel is provided with a second external thread. When the second material cylinder extends out of the first material cylinder, the first material cylinder can be gradually screwed out, and the material is arranged on the second cylinder. When the second charging barrel is contracted in the first charging barrel, the first charging barrel is screwed in gradually, and the second cylinder is not in contact with the first internal thread, so that the damage caused by mutual friction is avoided.

As a preferred scheme of the material rack, a first check ring is arranged at the periphery of the second material cylinder, the first check ring is arranged at one end, away from the first cylinder, of the second cylinder, when the second material cylinder extends out of the first material cylinder, materials are arranged on the second cylinder, and the first check ring is used for limiting the materials. When the second material barrel is provided with materials, the step surface between the first cylinder and the second cylinder and the first retainer ring limit the left and right movement of the materials together.

As a preferable scheme of the material rack, a first connecting hole is formed in the support frame, a second external thread is formed in the outer wall of the first material cylinder, a second internal thread is formed in the first connecting hole, and the second external thread is matched with the second internal thread, so that the first material cylinder is in threaded connection with the first connecting hole. First feed cylinder passes through threaded connection with the support frame, and the installation is firm, and the location is accurate.

As a preferable scheme of the material rack, a second retaining ring and a third retaining ring are arranged on the periphery of the first material cylinder, the second retaining ring is arranged on one side of the second external thread, the third retaining ring is arranged at one end, far away from the support frame, of the first material cylinder, and materials are arranged between the second retaining ring and the third retaining ring. One part of the outer wall of the first material cylinder is used for being fixedly connected with the supporting frame, the other part of the outer wall of the first material cylinder is used for supporting materials, and the second retaining ring and the third retaining ring are used for limiting the materials and preventing the materials from moving left and right on the first material cylinder.

As an optimal scheme of the material rack, the support frame and the fixed one end of 3D printer are provided with the backup pad, the both ends of backup pad all are provided with the second connecting hole, fastening bolt passes through the second connecting hole with 3D printer fixed connection. On being fixed in the work or material rest on the 3D printer through fastening bolt, easy dismounting is swift.

As a preferable scheme of the material rack, the first connecting hole and the supporting plate are connected by a grid-shaped connecting piece, and the cross section of the grid-shaped connecting piece is triangular or trapezoidal. The strength design of the support frame can be met by using the grid-shaped connecting piece, and the lightweight design of the support frame can be met. The grid-shaped connecting piece with the triangular or trapezoidal cross section has better supporting stability.

A3D printer, which comprises an extrusion device and a material rack as described in any one of the above, wherein the material rack is arranged corresponding to the extrusion device and used for providing materials for the extrusion device.

As a preferable scheme of the 3D printer, the extrusion device is a single extrusion device, the second material barrel is retracted into the first material barrel, and the material is disposed on the first material barrel.

As a preferable scheme of the 3D printer, the extruding device is a double extruding device, the second material barrel extends out of the first material barrel, and the first material barrel and the second material barrel are both provided with materials.

The utility model has the beneficial effects that:

the material rack provided by the utility model comprises a support frame and a material barrel group, wherein the support frame is fixed on a 3D printer, the material barrel group is arranged on the support frame and at least comprises a first material barrel and a second material barrel, one end of the first material barrel is fixed on the support frame, and the second material barrel is sleeved in the first material barrel and can selectively extend out of the first material barrel or retract into the first material barrel. The first barrel and the second barrel are connected through threads. According to the material rack provided by the utility model, the second material barrel can be selectively extended out of the first material barrel or retracted into the first material barrel according to the use requirement, the structure is simple, and the occupied space is small; and the operation is convenient, and the applicability is wider.

The 3D printer provided by the utility model is applicable to both a single extrusion device and a double extrusion device by applying the material rack, and has strong universality; and the structure is simple, the occupied space is small, and the operation is simple.

Drawings

Fig. 1 is a schematic structural diagram of a rack according to an embodiment of the present invention, in which a second barrel is retracted from a first barrel;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a sectional view taken along line A-A in FIG. 2;

fig. 4 is a schematic structural diagram of a rack according to an embodiment of the present invention, in which a second cartridge extends out of a first cartridge;

FIG. 5 is a side view of FIG. 4;

fig. 6 is a sectional view taken along line B-B in fig. 5.

In the figure:

1. a support frame; 2. a first barrel; 3. a second barrel; 4. fastening a bolt;

11. a support plate; 12. a grid-like connection member; 13. a reinforcing plate; 21. a second retainer ring; 22. a third retainer ring; 31. a first cylinder; 32. a second cylinder; 33. a first retainer ring.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, the terms "connected" and "fixed" are to be understood broadly, and may be, for example, a fixed connection or a detachable connection, unless otherwise explicitly specified or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present embodiment, the terms "upper", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

As shown in fig. 1-6, this embodiment provides a work or material rest for providing the material for the 3D printer, the work or material rest includes support frame 1 and feed cylinder group, and support frame 1 is fixed in on the 3D printer. The charging barrel group is arranged on the supporting frame 1 and at least comprises a first charging barrel 2 and a second charging barrel 3, one end of the first charging barrel 2 is fixed on the supporting frame 1, and the second charging barrel 3 is sleeved in the first charging barrel 2 and can selectively extend out of the first charging barrel 2 or retract into the first charging barrel 2. The inner wall of the first charging barrel 2 is provided with a first internal thread, the outer wall of the second charging barrel 3 is provided with a first external thread, and the first charging barrel 2 is in thread fit connection with the second charging barrel 3.

The material rack provided by the embodiment comprises a support frame 1 and a material barrel group, wherein the support frame 1 is fixed on a 3D printer, the material barrel group is arranged on the support frame 1 and at least comprises a first material barrel 2 and a second material barrel 3, one end of the first material barrel 2 is fixed on the support frame 1, and the second material barrel 3 is sleeved in the first material barrel 2 and can selectively extend out of the first material barrel 2 or retract into the first material barrel 2. The first cartridge 2 and the second cartridge 3 are connected by screw threads. The material rack provided by the embodiment can selectively extend the second material cylinder 3 out of the first material cylinder 2 or retract the second material cylinder 2 in accordance with the use requirement, and has the advantages of simple structure and small occupied space; and the operation is convenient, and the applicability is wider.

The cartridge set of the material rack provided by this embodiment is not limited to two cartridges, and in other embodiments, for example, the 3D printer is provided with three extrusion devices, the cartridge set includes three cartridges, including a first cartridge 2, a second cartridge 3 and a third cartridge, the first cartridge 2 is fixed on the support frame 1, the second cartridge 3 is sleeved in the first cartridge 2, and the third cartridge is sleeved in the second cartridge 3. When only one extrusion device works, the second material cylinder 3 is contracted in the first material cylinder 2, the third material cylinder is contracted in the second material cylinder 3, and the material is arranged on the first material cylinder 2 to provide the material for one extrusion device. When two extrusion device during operation, the first feed cylinder 2 is stretched out to second feed cylinder 3, and the third feed cylinder shrinks in second feed cylinder 3, all sets up the material on first feed cylinder 2 and second feed cylinder 3, provides the material for two extrusion device respectively. When all three extrusion device were worked, the second feed cylinder 3 stretched out first feed cylinder 2, and the third feed cylinder stretches out second feed cylinder 3, all sets up the material on first feed cylinder 2, second feed cylinder 3 and third feed cylinder, provides the material for three extrusion device respectively.

Alternatively, the outer wall of the second barrel 3 is provided with a step shape and comprises a first cylinder 31 and a second cylinder 32, the first cylinder 31 is arranged close to the support frame 1, the diameter of the first cylinder 31 is larger than that of the second cylinder 32, a first external thread is arranged on the outer wall of the first cylinder 31, and the length of the first internal thread is the same as that of the first barrel 2. In this embodiment, the entire inner wall of the first cartridge 2 is provided with a first internal thread, and the outer wall portion of the second cartridge 3 is provided with a second external thread. When the second cylinder 3 is extended out of the first cylinder 2, the first cylinder 2 can be gradually screwed out, and the material is disposed on the second cylinder 32. When the second barrel 3 is contracted in the first barrel 2, the first barrel 2 is gradually screwed in, and the second cylinder 32 is not contacted with the first internal thread, so that the second barrel is prevented from being damaged due to mutual friction.

Second feed cylinder 3 and first feed cylinder 2 threaded connection have increased the stability that second feed cylinder 3 and first feed cylinder 2 are connected, avoid when setting up the material on second feed cylinder 3, and second feed cylinder 3 breaks away from in following first feed cylinder 2.

Optionally, the periphery of the second barrel 3 is provided with a first retainer 33, the first retainer 33 is disposed at one end of the second barrel 32 far away from the first barrel 31, when the second barrel 3 extends out of the first barrel 2, the material is disposed on the second barrel 32, and the first retainer 33 is used for limiting the material. In this embodiment, when the material is placed on the second barrel 3, the step surface between the first cylinder 31 and the second cylinder 32 and the first retainer ring 33 cooperate to restrict the material from moving left and right.

Optionally, a first connection hole is formed in the support frame 1, a second external thread is formed in the outer wall of the first material cylinder 2, a second internal thread is formed in the first connection hole, and the second external thread is matched with the second internal thread to enable the first material cylinder 2 to be in threaded connection with the first connection hole. First feed cylinder 2 passes through threaded connection with support frame 1, and the installation is firm, and the location is accurate.

Optionally, the periphery of the first barrel 2 is provided with a second retaining ring 21 and a third retaining ring 22, the second retaining ring 21 is arranged on one side of the second external thread, the third retaining ring 22 is arranged on one end of the first barrel 2 far away from the support frame 1, and the material is arranged between the second retaining ring 21 and the third retaining ring 22. In this embodiment, a part of the outer wall of the first material cylinder 2 is used for being fixedly connected with the support frame 1, the other part of the outer wall of the first material cylinder is used for supporting materials, and the second retaining ring 21 and the third retaining ring 22 are used for limiting the materials and preventing the materials from moving left and right on the first material cylinder 2.

It should be noted that the material is a rolled material, the inner diameter of the roll of the rolled material is greater than the outer diameters of the second retaining ring 21 and the third retaining ring 22, so that the rolled material can be sleeved on the first material cylinder 2, after the rolled material is sleeved on the first material cylinder 2, under the action of gravity, the upper part of the inner side of the roll of the rolled material contacts with the outer wall of the first material cylinder 2, and the distance between the second retaining ring 21 and the third retaining ring 22 is matched with the width of the rolled material, so that the second retaining ring 21 and the third retaining ring 22 can limit the rolled material to move left and right.

Optionally, the support frame 1 is provided with the backup pad 11 with the fixed one end of 3D printer, and the both ends of backup pad 11 all are provided with the second connecting hole, and fastening bolt 4 passes through second connecting hole and 3D printer fixed connection. In this embodiment, the both ends of backup pad 11 respectively set up a second connecting hole, can be fixed in the work or material rest on the 3D printer through two fastening bolt 4, and easy dismounting is swift.

Alternatively, the first connection holes and the support plate 11 are connected by a grid-like connection 12, the cross-section of the grid-like connection 12 being triangular or trapezoidal. The use of the grid-shaped connecting piece 12 can meet the strength design of the support frame 1 and the lightweight design of the support frame 1. The triangular or trapezoidal cross-section of the grid-like connection element 12 is more stable in support.

Preferably, a reinforcing plate 13 is provided between the support plate 11 and the grid-like connection 12. In the present embodiment, four reinforcing plates 13 are disposed between the supporting plate 11 and the grid-shaped connecting member 12 for ensuring the supporting strength of the supporting frame 1.

Example two

This embodiment provides a 3D printer, including the work or material rest that extrusion device and embodiment one provided, the work or material rest corresponds the extrusion device setting for provide the material for extrusion device.

The 3D printer that this embodiment provided, extrusion device both can be single extrusion device, also can be two extrusion devices.

Alternatively, the extrusion device is a single extrusion device, the second barrel 3 is retracted within the first barrel 2, and the material is disposed on the first barrel 2.

Optionally, the extrusion device is a double extrusion device, the second barrel 3 extends out of the first barrel 2, and the first barrel 2 and the second barrel 3 are both provided with materials.

The 3D printer provided by the embodiment applies the material rack provided by the first embodiment, and is suitable for both a single extrusion device and a double extrusion device, and the universality is strong; and the structure is simple, the occupied space is small, and the operation is simple.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. The utility model provides a work or material rest for provide the material for 3D printer, its characterized in that includes:

the support frame (1), the support frame (1) is fixed on the 3D printer;

the charging barrel group is arranged on the supporting frame (1) and at least comprises a first charging barrel (2) and a second charging barrel (3), one end of the first charging barrel (2) is fixed on the supporting frame (1), and the second charging barrel (3) is sleeved in the first charging barrel (2) and can be selectively extended out of the first charging barrel (2) or retracted in the first charging barrel (2);

the inner wall of the first charging barrel (2) is provided with a first internal thread, the outer wall of the second charging barrel (3) is provided with a first external thread, and the first charging barrel (2) is in thread fit connection with the second charging barrel (3).

2. The stack according to claim 1, characterized in that the outer wall of the second cartridge (3) is provided in a stepped shape and comprises a first cylinder (31) and a second cylinder (32), the first cylinder (31) is provided adjacent to the support frame (1), the diameter of the first cylinder (31) is larger than the diameter of the second cylinder (32), the first external thread is provided on the outer wall of the first cylinder (31), and the length of the first internal thread is the same as the length of the first cartridge (2).

3. The stack according to claim 2, characterized in that a first retainer ring (33) is arranged on the periphery of the second cylinder (3), the first retainer ring (33) is arranged on one end of the second cylinder (32) far away from the first cylinder (31), when the second cylinder (3) extends out of the first cylinder (2), the material is arranged on the second cylinder (32), and the first retainer ring (33) is used for limiting the material.

4. The rack according to claim 1, wherein a first connecting hole is formed in the support frame (1), a second external thread is formed on the outer wall of the first material barrel (2), a second internal thread is formed in the first connecting hole, and the second external thread is matched with the second internal thread so that the first material barrel (2) is in threaded connection with the first connecting hole.

5. The rack according to claim 4, characterized in that a second retaining ring (21) and a third retaining ring (22) are arranged on the periphery of the first material barrel (2), the second retaining ring (21) is arranged on one side of the second external thread, the third retaining ring (22) is arranged on one end of the first material barrel (2) far away from the support frame (1), and the material is arranged between the second retaining ring (21) and the third retaining ring (22).

6. The rack according to claim 5, wherein a supporting plate (11) is arranged at one end of the supporting frame (1) fixed to the 3D printer, second connecting holes are formed in two ends of the supporting plate (11), and fastening bolts (4) are fixedly connected with the 3D printer through the second connecting holes.

7. The stack according to claim 6, characterized in that said first connection holes and said support plate (11) are connected by grid-like connectors (12), said grid-like connectors (12) being triangular or trapezoidal in cross section.

8. A 3D printer comprising an extrusion device and a stack according to any of claims 1-7, the stack being arranged in correspondence with the extrusion device for providing material to the extrusion device.

9. The 3D printer according to claim 8, characterized in that the extrusion device is a single extrusion device, the second cartridge (3) being retracted inside the first cartridge (2), the material being arranged on the first cartridge (2).

10. The 3D printer according to claim 8, characterized in that the extrusion device is a double extrusion device, the second cartridge (3) protrudes out of the first cartridge (2), and material is provided on both the first cartridge (2) and the second cartridge (3).