Powder feeding device for plastic color matching machine

Abstract

The utility model belongs to the technical field of plastic color matching machines, and particularly relates to a powder feeding device for a plastic color matching machine, which comprises a powder feeding base arranged on a color matching machine body, a powder containing groove is arranged on the powder feeding base, a powder feeding groove is arranged on the bottom surface of the powder containing groove, a powder feeding gear is rotatably connected in the powder feeding groove, and the powder feeding gear is meshed with the powder containing groove. The upper wall face of teeth of the powder feeding gear is sunken downwards to form a matching curved face, a powder stirring base plate is arranged on the powder feeding base, a powder stirring part is arranged on the powder stirring base plate, the bottom face of the powder stirring part is matched with the tooth matching curved face of the powder feeding teeth, and the powder stirring part is provided with a powder blocking wall capable of blocking powder located between the two connected teeth of the powder feeding gear. The powder feeding device is simple in overall structure, reasonable in design and low in use cost, parts do not need to be replaced regularly, the tooth structure of the powder feeding gear is optimized, powder makes contact with the powder blocking wall of the powder stirring part on the powder stirring base plate under the conveying cooperation of teeth, then falling is achieved, operation noise is avoided, and the service life is long.

Description

Technical field:

[0001] The utility model belongs to the technical field of plastic color matching machines, in particular to a powder feeding device used for plastic color matching machines. Background technology:

[0002] The existing Chinese utility model patent (authorization announcement number CN219153401U) discloses a toner device for a plastic color matching machine. The toner device comprises a color matching machine body having a stirring chamber and a toner containing chamber, a circular powder outlet groove for connecting the stirring chamber and the toner containing chamber is provided on the color matching machine body, a powder outlet gear partially located in the stirring chamber is rotatably connected in the circular powder outlet groove, a powder expelling elastic component is provided in the stirring chamber, one end of the powder expelling elastic component is a free end and is located in the tooth gap between two teeth of the powder expelling gear, when the powder expelling gear rotates, the free end of the powder expelling elastic component located in the upper tooth gap abuts against the corresponding tooth and elastically deforms to the next tooth gap. This structure utilizes the elastic deformation of the powder-moving elastic component to beat and stir the toner in each tooth gap so that the toner can fall into the stirring chamber. However, in actual use, it is found that the elastic deformation of the powder-moving elastic component and the beating of the toner and the powder outlet gear will produce a rattling noise, affecting the operating environment of the entire machine. At the same time, the frequent elastic deformation of the powder-moving elastic component will also seriously shorten its service life, and the powder-moving elastic component needs to be replaced regularly. Summary of the invention:

[0003] The utility model aims to provide a powder feeding device for a plastic color matching machine, which optimizes the tooth structure of the powder feeding gear so that the powder contacts the powder blocking wall of the powder flicking part on the powder flicking seat plate under the conveying cooperation of the teeth and then falls, without operating noise and with a long service life.

[0004] The utility model is achieved in this way:

[0005] A powder feeding device for a plastic color matching machine comprises a powder feeding base arranged on a color matching machine body, a powder containing groove is provided on the powder feeding base, a powder feeding groove in a notch shape and the notch is connected to the inner cavity of the color matching machine body on the bottom surface of the powder containing groove, a powder feeding gear partially located outside the notch of the powder feeding groove is rotatably connected in the powder feeding groove, the upper wall surface of the teeth of the powder feeding gear is recessed downward to form a matching curved surface with a height decreasing from the inside to the outside, a powder tapping seat plate is provided on the powder feeding base, a powder tapping part is provided on the powder tapping seat plate and is located outside the notch of the powder feeding groove and directly above the teeth of the powder feeding gear, the bottom surface of the powder tapping part is matched with the tooth matching curved surface of the powder feeding teeth, and the powder tapping part has a powder blocking wall that can resist the powder located between two connected teeth of the powder feeding gear.

[0006] In the above-mentioned powder feeding device for a plastic color matching machine, the powder blocking wall is located in the middle of the outer side of the circular notch of the powder feeding groove.

[0007] In the above-mentioned powder feeding device for a plastic color matching machine, both end portions of the powder dialing seat plate are provided with mounting portions, and the mounting portions are detachably connected to the powder feeding base.

[0008] In the above-mentioned powder feeding device for a plastic color matching machine, the powder feeding base includes a powder feeding base fixedly connected to the color matching machine body, and a fixed cover plate covering the powder feeding base, the powder feeding groove is opened on the top surface of the powder feeding base, and the mounting portion is detachably connected to the powder feeding base.

[0009] In the above-mentioned powder feeding device for a plastic color matching machine, the mounting portion is formed by extending the corresponding end of the powder dialing base plate toward the powder feeding base, the maximum width of the free end of the mounting portion is greater than the maximum width of its connecting end, and an open slot is provided on the powder feeding base for the corresponding mounting portion to be inserted from top to bottom, and the fixed cover plate completely covers the notch of the open slot.

[0010] In the above-mentioned powder feeding device for a plastic color matching machine, the powder shifting seat plate and the powder shifting part are an integrally formed structure.

[0011] The outstanding advantages of the utility model compared with the prior art are:

[0012] The utility model has the advantages of simple overall structure, reasonable design, low use cost and no need to replace parts regularly. By optimizing the tooth structure of the powder feeding gear, the powder can contact the powder blocking wall of the powder flicking part on the powder flicking seat plate under the transportation cooperation of the teeth, and then fall down. It has no operating noise and a long service life. Description of the drawings:

[0013] Figure 1 It is a three-dimensional diagram of the powder feeding device of the utility model;

[0014] Figure 2 It is an exploded view of the powder feeding device of the utility model.

[0015] In the figure: 1. Powder feeding base; 2. Powder feeding trough; 3. Powder feeding gear; 4. Matching curved surface; 5. Powder removing seat plate; 6. Powder removing part; 7. Powder blocking wall; 8. Mounting part; 9. Powder feeding base; 10. Fixed cover plate; 11. Opening slot. Specific implementation method:

[0016] The present invention is further described below with reference to specific embodiments. Figure 1 —2:

[0017] A powder feeding device for a plastic color matching machine comprises a powder feeding base 1 arranged on a color matching machine body, a powder containing groove is provided on the powder feeding base 1, a powder feeding groove 2 in a circular notch shape and the circular notch is connected to the inner cavity of the color matching machine body on the bottom surface of the powder containing groove, a powder feeding gear 3 partially located outside the circular notch of the powder feeding groove 2 is rotatably connected in the powder feeding groove 2, the upper wall surface of the teeth of the powder feeding gear 3 is recessed downward to form a matching curved surface 4 with a height decreasing from the inside to the outside, a powder tapping seat plate 5 is provided on the powder feeding base 1, a powder tapping portion 6 is provided on the powder tapping seat plate 5 and is located outside the circular notch of the powder feeding groove 2 and directly above the teeth of the powder feeding gear 3, the bottom surface of the powder tapping portion 6 is matched with the tooth matching curved surface 4 of the powder feeding teeth, and the powder tapping portion 6 has a powder blocking wall 7 that can resist the powder located between two connected teeth of the powder feeding gear 3.

[0018] The utility model has a simple overall structure, reasonable design, low use cost and no need to replace parts regularly. By optimizing the tooth structure of the powder feeding gear 3, the powder is contacted with the powder-moving portion 6 on the powder-moving seat plate 5 under the conveying cooperation of the teeth, and then falls. There is no operating noise and the service life is long.

[0019] Furthermore, in order to ensure that the powder can effectively fall into the inner cavity of the machine body, the powder blocking wall 7 is located in the middle of the outer side of the circular notch of the powder feeding groove 2.

[0020] The connection between the powder-digging seat plate 5 and the powder-feeding base 1 is as follows: both ends of the powder-digging seat plate 5 are provided with mounting parts 8 , and the mounting parts 8 are detachably connected to the powder-feeding base 1 .

[0021] Furthermore, the specific composition structure of the powder feeding base 1 is as follows: the powder feeding base 1 includes a powder feeding base 9 fixedly connected to the color matching machine body, and a fixed cover plate 10 covered on the powder feeding base 9, the powder feeding groove 2 is provided on the top surface of the powder feeding base 9, and the mounting portion 8 is detachably connected to the powder feeding base 9. In addition, the powder dialing seat plate 5 can penetrate the mounting portion 8 and be screwed on the powder feeding base 9 through a fastener, and in this embodiment, the mounting portion 8 is formed by the corresponding end of the powder dialing seat plate 5 extending toward the powder feeding base 1, the maximum width of the free end of the mounting portion 8 is greater than the maximum width of its connecting end, and the powder feeding base 9 is provided with an open card slot 11 for the corresponding mounting portion 8 to be inserted from top to bottom, and the fixed cover plate 10 completely covers the notch of the open card slot 11. In addition, the cross section of the free end of the mounting portion 8 of this embodiment is a circular structure, and the cross section of the connecting end is a long strip, so when the mounting portion 8 is inserted from top to bottom into the open card slot 11, the internal and external limit fit between the mounting portion 8 and the open card slot 11 can be achieved.

[0022] Furthermore, in this embodiment, the powder removing seat plate 5 and the powder removing portion 6 are an integrally formed structure.

[0023] The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model. Therefore, any equivalent changes made based on the shape, structure, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A powder feeding device for a plastic color matching machine, comprising a powder feeding base (1) arranged on a color matching machine body, a powder containing groove being provided on the powder feeding base (1), a powder feeding groove (2) being in a circular notch shape and communicating with an inner cavity of the color matching machine body on the bottom surface of the powder containing groove, a powder feeding gear (3) being partially located outside the circular notch of the powder feeding groove (2) and being rotatably connected in the powder feeding groove (2), characterized in that: The upper wall surface of the teeth of the powder feeding gear (3) is concave downward to form a matching curved surface (4) with a height decreasing from the inside to the outside. A powder-dispensing seat plate (5) is provided on the powder feeding base (1). The powder-dispensing seat plate (5) is provided with a powder-dispensing portion (6) located outside the circular notch of the powder feeding groove (2) and directly above the teeth of the powder feeding gear (3). The bottom surface of the powder-dispensing portion (6) is matched with the tooth matching curved surface (4) of the powder feeding teeth, and the powder-dispensing portion (6) has a powder-blocking wall (7) capable of resisting powder located between two connected teeth of the powder feeding gear (3).

2. A powder feeding device for a plastic color matching machine according to claim 1, characterized in that: The powder blocking wall (7) is located in the middle of the outer side of the circular notch of the powder feeding trough (2).

3. The powder feeding device for a plastic color matching machine according to claim 1, characterized in that: Both end portions of the powder feeding seat plate (5) are provided with mounting portions (8), and the mounting portions (8) are detachably connected to the powder feeding base (1).

4. A powder feeding device for a plastic color matching machine according to claim 3, characterized in that: The powder feeding base (1) includes a powder feeding base (9) fixedly connected to the color matching machine body, and a fixed cover (10) covering the powder feeding base (9); the powder feeding trough (2) is provided on the top surface of the powder feeding base (9); and the mounting portion (8) is detachably connected to the powder feeding base (9).

5. The powder feeding device for a plastic color matching machine according to claim 4, characterized in that: The mounting portion (8) is formed by extending the corresponding end of the powder shifting seat plate (5) toward the powder feeding base (1); the maximum width of the free end of the mounting portion (8) is greater than the maximum width of its connection end; an open slot (11) is provided on the powder feeding base (9) for the corresponding mounting portion (8) to be inserted from top to bottom, and the fixed cover plate (10) completely covers the notch of the open slot (11).

6. A powder feeding device for a plastic color matching machine according to claim 1, 2 or 3, characterized in that: The powder removing seat plate (5) and the powder removing portion (6) are an integrally formed structure.

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