CN217862802U - Extruding mechanism and printer - Google Patents

Abstract

The utility model provides an extruding mechanism and printer, specifically provide an extruding mechanism, which comprises a housin, first regulating part, the initiative guide, driven guide and driving piece, be equipped with the pin hole that link up on the casing, first regulating part is rotationally installed in the casing, the first end at first regulating part is installed movably respectively to initiative guide and driven guide, the both sides in pin hole are arranged in to initiative guide and driven guide symmetry, initiative guide and driven guide mutual drive are connected, wherein, first regulating part carries out the beat, can make initiative guide and driven guide keep away from each other or be close to, the driving piece is installed on the casing, the driving piece is connected with initiative guide drive, generally speaking, this extruding mechanism can realize carrying out the adaptation to the tubular product of different radiuses, and can smooth advance and retreat the material.

Description

Extruding mechanism and printer

Technical Field

The utility model relates to a 3D printer technical field especially relates to an extrusion mechanism and printer.

Background

In recent years, 3D printers have been developed rapidly, and FDM-like 3D printing technology has been increasingly popular in the market. The 3D printer needs to be improved in many aspects, so that more convenient, simpler and faster use experience and better printing performance are provided for a user;

the extrusion mechanism is an important component of the printer and is one of the most critical components influencing the printing effect. And the gear extrusion groove among the extrusion mechanism that current 3D printer adopted is less, extrusion pressure is inhomogeneous, material returned feeding is not smooth and easy, and is difficult to carry out the adaptation to the tubular product of different radiuses.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at solve the gear extrusion groove among the extrusion mechanism that current 3D printer adopted less, extrusion pressure is inhomogeneous, the material returned feeding is not smooth and easy, and is difficult to carry out the problem of adaptation to different radial pipe materials.

The utility model discloses the first aspect provides an extrusion mechanism includes casing, first regulating part, initiative guide, driven guide and driving piece, be equipped with the pin hole that link up on the casing, first regulating part is rotationally installed in the casing, initiative guide with driven guide movably installs respectively on the first end of first regulating part, initiative guide with driven guide arranges in symmetrically the both sides of pin hole, initiative guide with driven guide mutual drive is connected, wherein, first regulating part carries out the beat, can make initiative guide with driven guide keeps away from each other or is close to, the driving piece is installed on the casing, the driving piece with the drive of initiative guide is connected.

Preferably, the driving guide comprises a driving shaft rod and a driving gear sleeved on the driving shaft rod, the driven guide comprises a driven shaft rod and a driven gear sleeved on the driven shaft rod, the driving gear is in driving connection with the driving piece, and annular grooves are formed in the driving gear and the driven gear.

Preferably, a first end of the first adjusting member is provided with a rotating shaft, a driving movable groove and a driven movable groove, a first clamping position is arranged in the housing, the rotating shaft is rotatably mounted in the first clamping position, the driving shaft rod is slidably mounted in the driving movable groove, the driven shaft rod is slidably mounted in the driven movable groove, the driving gear is engaged with the driven gear, the first adjusting member swings, the driving shaft rod can move from one end of the driving movable groove to the other end of the driving movable groove, and the driven shaft rod can move from one end of the driven movable groove to the other end of the driven movable groove, so that the driving gear and the driven gear can be close to or far away from each other.

Preferably, a first movable groove and a second movable groove are formed in the housing, an end of the driving shaft is slidably inserted into the first movable groove, and an end of the driven shaft is slidably inserted into the second movable groove.

Preferably, the extrusion mechanism further comprises a limiting member, the limiting member is respectively connected with the inner side wall of the shell and the second end of the first adjusting member, and the limiting member is used for limiting the deflection action of the first adjusting member.

Preferably, the restriction piece includes screw and spring, be equipped with the second screens on the inside wall of casing, the second of first regulating part is served and is equipped with the notch, the first end of screw pass the notch and with first jogged joint, the spring housing is located on the screw, the one end of spring with the second of first regulating part is held and is contradicted, the other end of spring with the second of screw is held and is contradicted.

Preferably, the extruding mechanism further comprises a second adjusting member, the second adjusting member is rotatably mounted in the housing, a first end of the second adjusting member is provided with a protruding block, the protruding block can be abutted to a second end of the first adjusting member by rotating the second adjusting member, and the second adjusting member is used for controlling the deflection angle of the first adjusting member.

Preferably, a third movable groove is formed in the shell, a hand-pulling piece is arranged at the second end of the second adjusting piece, and the hand-pulling piece penetrates through the third movable groove and is arranged outside.

The utility model discloses the first aspect provides a printer, including extrusion mechanism, extrusion mechanism is above-mentioned arbitrary scheme.

The beneficial effects of the utility model reside in that: this extruding means and printer provide an extruding means, which comprises a housin, first regulating part, the initiative guiding piece, driven guiding piece and driving piece, be equipped with the pin hole that link up on the casing, first regulating part is rotationally installed in the casing, initiative guiding piece and driven guiding piece movably install respectively on the first end of first regulating part, the both sides in the pin hole are arranged in to initiative guiding piece and driven guiding piece symmetry, initiative guiding piece and driven guiding piece mutual drive are connected, wherein, first regulating part carries out the beat, can make initiative guiding piece and driven guiding piece keep away from each other or be close to, the driving piece is installed on the casing, the driving piece is connected with initiative guiding piece drive, generally speaking, this extruding means can realize carrying out the adaptation to the tubular product of different radiuses, and can smooth advance the material returned.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic view of the internal structure of the middle housing of the present invention;

fig. 3 is a schematic view of the internal structure of the middle housing of the present invention;

FIG. 4 is an exploded view of the connection of the first adjustment member, the driving guide member and the driven guide member of FIG. 3;

FIG. 5 is an exploded view of an embodiment of the present invention

FIG. 6 is a first front view of the internal structure of the housing of FIG. 2;

FIG. 7 is a first top view of the internal structure of the housing of FIG. 2;

FIG. 8 is a first top view of the internal structure of the housing of FIG. 3;

FIG. 9 is a second front view of the internal structure of the housing of FIG. 2;

FIG. 10 is a second top view of the internal structure of the housing of FIG. 2;

fig. 11 is a second top view of the internal structure of the housing of fig. 3.

The reference numbers in the figures: 100 shell, 101 lead hole, 102 first clip, 103 first movable groove, 104 second movable groove, 105 second clip, 106 third movable groove, 200 first adjusting piece, 201 rotating shaft, 202 driving movable groove, 203 driven movable groove, 204 notch, 300 driving guide piece, 301 driving shaft rod, 302 driving gear, 400 driven guide piece, 401 driven shaft rod, 402 driven gear, 500 driving piece, 600 ring groove, 700 limiting piece, 701 screw, 702 spring, 800 second adjusting piece, 801 lug and 802 hand-dialing piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1 to 11, the present invention provides an extrusion mechanism including a housing 100, a first adjusting member 200, a driving guide 300, a driven guide 400 and a driving member 500, wherein the housing 100 is provided with a through hole 101, the first adjusting member 200 is rotatably installed in the housing 100, the driving guide 300 and the driven guide 400 are respectively movably installed at a first end of the first adjusting member 200, the driving guide 300 and the driven guide 400 are symmetrically disposed at two sides of the through hole 101, the driving guide 300 and the driven guide 400 are mutually connected in a driving manner, wherein the first adjusting member 200 is swung to enable the driving guide 300 and the driven guide 400 to be far away from or close to each other, the driving member 500 is installed on the housing 100, and the driving member 500 is connected with the driving guide 300 in a driving manner.

Specifically, the tubular consumable is introduced from the lead hole 101 and clamped by the driving guide 300 and the driven guide 400, and driven by the driving member 500, so that the driving guide 300 cooperates with the driven guide 400 to draw the tubular consumable, thereby realizing the feeding and discharging operations, and in order to replace the tubular consumable or replace the tubular consumable with different radius, the first adjusting member 200 is deflected to move the driving guide 300 and the driven guide 400 away from each other, i.e., the distance between the driving guide 300 and the driven guide 400 is increased, so that the clamping force for clamping the tubular consumable is lost between the driving guide 300 and the driven guide 400, and thus the tubular consumable can be replaced or replace the tubular consumable with other radius size, and in order to clamp the tubular consumable with different radius size, the distance between the driving guide 300 and the driven guide 400 can be controlled by the first adjusting member 200, as shown in fig. 6 and 7, wherein it is mainly noted that the actual maximum size of the tubular consumable must be smaller than the hole of the lead hole 101, otherwise the tubular consumable cannot pass through the lead hole 101.

Further, the driving guide 300 includes a driving shaft 301 and a driving gear 302 sleeved on the driving shaft 301, the driven guide 400 includes a driven shaft 401 and a driven gear 402 sleeved on the driven shaft 401, the driving gear 302 is in driving connection with the driving member 500, and the driving gear 302 and the driven gear 402 are both provided with annular grooves 600.

Specifically, the driving guide 300 and the driven guide 400 are two secondary gears with shafts of the same structure, wherein the first stage of the secondary gear is provided with a ring groove 600, the inner wall of the ring groove 600 is uniformly provided with a plurality of protruding teeth for better clamping the tubular consumable, the second stage of the secondary gear is provided with matching teeth, and the driving gear 302 and the driven outlet 402 are in meshed transmission through the matching teeth.

Further, a first end of the first adjusting member 200 is provided with a rotating shaft 201, a driving movable groove 202 and a driven movable groove 203, the housing 100 is provided with a first clamping portion 102, the rotating shaft 201 is rotatably installed in the first clamping portion 102, the driving shaft 301 is slidably installed in the driving movable groove 202, the driven shaft 401 is slidably installed in the driven movable groove 203, the driving gear 302 is engaged with the driven gear 402, wherein the first adjusting member 200 performs deflection, the driving shaft 301 can move from one end of the driving movable groove 202 to the other end of the driving movable groove 202, and the driven shaft 401 can move from one end of the driven movable groove 203 to the other end of the driven movable groove 203, so that the driving gear 302 and the driven gear 402 approach or move away from each other.

Referring to fig. 4, two layers of clamping plates are arranged at the first end of the first adjusting member 200, a rotating shaft 201, a driving movable groove 202 and a driven movable groove 203 are arranged on each of the two layers of clamping plates, a driving gear 302 and a driven gear 402 are respectively arranged between the two layers of clamping plates, wherein the driving gear 302 is limited between the two layers of clamping plates by a driving shaft rod 301 sequentially from the driving movable groove 202 on the upper layer of clamping plate, the driving gear 302 and the driving movable groove 202 on the lower layer of clamping plate, and the installation mode of the driven gear 402 is the same as that of the driving gear 302.

Further, a first movable groove 103 and a second movable groove 104 are formed in the housing 100, an end of the driving shaft 301 is slidably inserted into the first movable groove 103, and an end of the driven shaft 401 is slidably inserted into the second movable groove 104.

Referring to fig. 7 and 9, the first movable groove 103 and the second movable groove 104 have the same structure and the same size as the driving movable groove 202 and the driven movable groove 203, respectively, and the driving shaft 301 and the driven shaft 401 are respectively inserted into the first sliding groove 103 and the second sliding groove 104, so that the yaw angle of the first adjustment member 200 can be limited while the driving shaft 301 and the driven shaft 401 are not limited to move in the driving movable groove 202 and the driven movable groove 203, respectively.

Further, the extruding mechanism further includes a limiting member 700, the limiting member 700 is connected to an inner sidewall of the housing 100 and a second end of the first adjusting member 200, respectively, and the limiting member 700 is configured to limit the deflection motion of the first adjusting member 200.

The limiting part 700 comprises a screw 701 and a spring 702, a second clamping position 105 is arranged on the inner side wall of the shell 100, a notch 204 is arranged at the second end of the first adjusting part 200, the first end of the screw 701 penetrates through the notch 204 and is connected with the second clamping position 105, the spring 702 is sleeved on the screw 701, one end of the spring 702 abuts against the second end of the first adjusting part 200, and the other end of the spring 702 abuts against the second end of the screw 701.

Specifically, first regulating part 200 does not have self-locking structure etc. when the casing is rotated the installation, consequently fix first regulating part 200 through screw 701 and the cooperation of spring 704, the restriction is under certain angle, avoid in the operation process, the distance between initiative guide and the driven guide receives the influence and keeps away from each other, lose clamping power, lead to the tubular consumptive material can't effectively be by the centre gripping and whole workflow is unable normal, because first regulating part 200 is the deflection, the angle is changed, consequently, adopt spring 704 in the conflict of first regulating part 200.

Further, the extruding mechanism further comprises a second adjusting member 800, the second adjusting member 800 is rotatably mounted in the housing 100, a first end of the second adjusting member 800 is provided with a protrusion 801, wherein the protrusion 801 can abut against a second end of the first adjusting member 200 by rotating the second adjusting member 800, and the second adjusting member 800 is used for controlling the deflection angle of the first adjusting member 200.

The housing 100 is provided with a third movable slot 106, the second end of the second adjusting member 800 is provided with a hand-pulling member 802, and the hand-pulling member 802 passes through the third movable slot 106 and is disposed outside.

Referring to fig. 6 to 11, the second adjusting member 800 rotates to enable the protrusion 801 to abut against the first end of the first adjusting member 200 to control the deflection angle of the first adjusting member 200, when the second adjusting member 800 rotates, the screw 701 needs to be twisted in advance to weaken the pressure of the spring 702 on the first adjusting member 200, and after the second adjusting member 800 drives the first adjusting member 200 to deflect, the screw 701 is twisted to strengthen the pressure of the spring 702 on the first adjusting member 200 to fix the first adjusting member 200 at the deflection angle.

Further, a printer includes an extrusion mechanism, and the extrusion mechanism is any one of the above-mentioned schemes.

The above description is only for the embodiments of the present invention, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall within the scope of the present invention.

Claims (9)

1. An extrusion mechanism, comprising:

the shell is provided with a through lead hole;

a first adjustment member rotatably mounted within the housing;

an active guide;

a driven guide movably installed on a first end of the first adjustment member, the driving guide and the driven guide being symmetrically disposed at both sides of the wire hole, the driving guide and the driven guide being drivingly connected to each other, wherein the first adjustment member is swung such that the driving guide and the driven guide are moved away from or close to each other;

the driving piece is installed on the shell and is in driving connection with the active guide piece.

2. The extrusion mechanism as set forth in claim 1, wherein the driving guide includes a driving shaft and a driving gear sleeved on the driving shaft, the driven guide includes a driven shaft and a driven gear sleeved on the driven shaft, the driving gear is in driving connection with the driving member, and the driving gear and the driven gear are both provided with annular grooves.

3. The extrusion mechanism as recited in claim 2, wherein a first end of the first adjusting member is provided with a rotating shaft, a driving movable slot and a driven movable slot, the housing is provided with a first detent, the rotating shaft is rotatably mounted in the first detent, the driving shaft is slidably mounted in the driving movable slot, the driven shaft is slidably mounted in the driven movable slot, and the driving gear is engaged with the driven gear, wherein the first adjusting member is biased, the driving shaft is movable from one end of the driving movable slot to the other end of the driving movable slot, and the driven shaft is movable from one end of the driven movable slot to the other end of the driven movable slot, so as to approach or separate the driving gear and the driven gear.

4. The extrusion mechanism of claim 2 wherein the housing defines a first movable slot and a second movable slot, the end of the drive shaft slidably engaging the first movable slot and the end of the driven shaft slidably engaging the second movable slot.

5. The extrusion mechanism of claim 1 further comprising a limiting member coupled to an inner sidewall of the housing and to the second end of the first adjustment member, respectively, the limiting member configured to limit the yaw motion of the first adjustment member.

6. The extrusion mechanism of claim 5, wherein the limiting member comprises a screw and a spring, a second clamping position is arranged on the inner side wall of the housing, a notch is arranged at the second end of the first adjusting member, the first end of the screw penetrates through the notch and is connected with the second clamping position, the spring is sleeved on the screw, one end of the spring is abutted against the second end of the first adjusting member, and the other end of the spring is abutted against the second end of the screw.

7. The extrusion mechanism of claim 5, further comprising a second adjustment member rotatably mounted within the housing, the second adjustment member having a tab at a first end thereof, wherein rotation of the second adjustment member causes the tab to abut a second end of the first adjustment member, the second adjustment member being configured to control the yaw angle of the first adjustment member.

8. The extrusion mechanism of claim 7, wherein a third movable slot is formed in the housing, and a hand-pulling member is disposed at the second end of the second adjusting member, and the hand-pulling member passes through the third movable slot and is disposed outside.

9. A printer comprising an extrusion mechanism according to any one of claims 1 to 8.

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