Injection device including swivel mechanism and injection molding machine

Patent metadata

Field	Value
Publication number	US-11845207-B2
Application number	US-202217673018-A
Country	US
Kind code	B2
Filing date	Feb 16, 2022
Priority date	Feb 17, 2021
Publication date	Dec 19, 2023
Grant date	Dec 19, 2023

Abstract

An injection device includes: a swivel base; and an injection unit mounted on the swivel base and configured to be rotatable, in which the injection unit is provided with a swivel mechanism including: a horizontal support shaft having a tip end portion fixed to the injection unit; an axle penetrated by the support shaft at a position eccentric from an axis and rotatably provided with respect to the support shaft; and a wheel penetrated by the axle at a position of an axis and is rotatably provided with respect to the axle, in which in a case where a rotation position is set to a stop position, the wheel is apart from the swivel base, and in which in a case where the rotation position is set to a swivel position, the wheel contacts with the swivel base and the injection unit is swivelable on the swivel base.

First claim

What is claimed is:

1. An injection device comprising:
a swivel base; and
an injection unit mounted on the swivel base and configured to rotate about a swivel shaft with respect to the swivel base,
wherein the injection unit is provided with a swivel mechanism including:
a horizontal support shaft having a tip end portion fixed to the injection unit;
an axle penetrated by the support shaft at a position eccentric from an axis and rotatably provided with respect to the support shaft; and
a wheel penetrated by the axle at a position of an axis and is rotatably provided with respect to the axle,
wherein in a case where the axle is rotated with respect to the support shaft and a rotation position is set to a stop position, the wheel is apart from the swivel base, and
wherein in a case where the rotation position is set to a swivel position, the wheel contacts with the swivel base and the injection unit is swivelable on the swivel base.

2. The injection device according to claim 1 ,
wherein the swivel mechanism includes a fixing portion configured to fix the rotation position of the axle.

3. The injection device according to claim 1 ,
wherein the swivel mechanism includes a visual recognition portion where the rotation position of the axle is visually checked.

4. The injection device according to claim 1 ,
wherein the injection unit is provided with a plurality of swivel mechanisms.

5. An injection molding machine comprising:
an injection device configured to inject a resin; and
a mold clamping device configured to clamp a mold,
wherein the injection device includes a swivel base and an injection unit mounted on the swivel base,
wherein the injection unit is provided with a swivel mechanism including:
a horizontal support shaft having a tip end portion fixed to the injection unit;
an axle penetrated by the support shaft at a position eccentric from an axis and rotatably provided with respect to the support shaft; and
a wheel penetrated by the axle at a position of an axis and is rotatably provided with respect to the axle,
wherein in a case where the axle is rotated with respect to the support shaft and a rotation position is set to a stop position, the wheel is apart from the swivel base, and
wherein in a case where the rotation position is set to a swivel position, the wheel contacts with the swivel base and the injection unit is swivelable on the swivel base.

6. The injection device according to claim 1 , wherein the swivel mechanism is disposed on an upper portion of the swivel base.

7. The injection device according to claim 1 , wherein in the case where the axle is rotated with respect to the support shaft, a height of the wheel changes in a direction perpendicular to the support shaft.

8. The injection device according to claim 4 ,
wherein a center of gravity of the injection unit is located inside a polygon having the wheel and the swivel shaft of each of the plurality of swivel mechanisms as vertices when viewed from a vertical direction.

9. The injection molding machine according to claim 5 ,
wherein the swivel mechanism includes a fixing portion configured to fix the rotation position of the axle.

10. The injection molding machine according to claim 5 ,
wherein the swivel mechanism includes a visual recognition portion where the rotation position of the axle is visually checked.

11. The injection molding machine according to claim 5 ,
wherein the injection unit is provided with a plurality of swivel mechanisms.

12. The injection molding machine according to claim 5 , wherein the swivel mechanism is disposed on an upper portion of the swivel base.

13. The injection molding machine according to claim 5 , wherein in the case where the axle is rotated with respect to the support shaft, a height of the wheel changes in a direction perpendicular to the support shaft.

14. The injection molding machine according to claim 11 ,
wherein a center of gravity of the injection unit is located inside a polygon having the wheel and the swivel shaft of each of the plurality of swivel mechanisms as vertices when viewed from a vertical direction.

Assignees

• Japan Steel Works Ltd

Inventors

• Mitani Souma

Classifications

• B29C45/1775

  Connecting parts, e.g. injection screws, ejectors, to drive means · CPC title

• B29C45/07 Primary

  using movable injection units · CPC title

• B29C45/84

  Safety devices {(B29C45/7626 takes precedence)} · CPC title

• B29C45/1773 Primary

  Means for adjusting or displacing the injection unit into different positions, e.g. for co-operating with different moulds (B29C45/1781 takes precedence) · CPC title

• B29C45/17

  Component parts, details or accessories; Auxiliary operations · CPC title