A kind of tea screening device
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of tea screening device.
Background technology
Along with the development of modern technologies, processing field of tea leaves progressively enters automation age, and production of machinery starts the traditional craft work of a large amount of replacement, and the machinery production efficiency of tealeaves is high, output large, can meet the tealeaves demand risen steadily both at home and abroad.But because the operation of machinery is meticulous not, the tea quality of output is difficult to ensure, so the mechanical processing quality dropping into more energy research raising tealeaves is very necessary.
For above-mentioned problem, people appreciate deficiency, and in addition improvement, a kind of tealeaves sterilization screening installation [application number: 201320372588.4 disclosed in Chinese patent; Authorization Notice No.: CN 203407444 U], form primarily of cylinder, screen cloth, fan, Far infrared heating plate, rotating shaft, belt sheave structure, motor, connecting plate and frame, it is characterized in that: the left side of described cylinder is provided with rotating shaft, the right side of cylinder is provided with connecting plate and power transmission shaft, cylinder is arranged in frame by rotating shaft, connecting plate and power transmission shaft, and what the barrel of cylinder adopted is that screen cloth processes.
When above-mentioned tealeaves sterilization screening installation uses, tealeaves is placed on cylinder, then starting fan, and weight is blown out under the action of the forces of the wind compared with the tealeaves at the end on the right side of cylinder, to realize the object of screening.But there is a problem in this tealeaves sterilization screening installation: side relative with cylinder right-hand member in frame is blind end, affects taking of tealeaves, causes this equipment use comparatively inconvenient.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of tea screening device easy to use.
The purpose of this utility model realizes by following technical proposal: a kind of tea screening device, comprise the screen box that side has opening, described screen box is provided with the chamber door sealed by above-mentioned opening, it is characterized in that, the bracing frame in inverted L shape is provided with in described screen box, the support portion that this bracing frame comprises horizontally disposed guide part and vertically arranges, described guide part is relative with chamber door, the side relative with chamber door, described support portion is fixed with the screen frame that is rectangle and this screen frame parallels with described guide part, described support portion and the opposing side of chamber door are fixed with connecting cylinder, motor is fixed with in described connecting cylinder, be provided with in described bracing frame with chamber door just to the fan arranged, and the rotating shaft of fan passes support portion and is connected mutually with the output shaft of motor, also cylinder is fixed with in described screen box, described connecting cylinder between cylinder and bracing frame and this connecting cylinder be connected mutually with the piston rod of cylinder, under the effect of cylinder, described bracing frame can stretch out described opening and be positioned at outside described screen box.
When work just starts, bracing frame is positioned at outside screen box.Then tealeaves is placed in screen frame, and the tealeaves or the impurity that are more now less than screen-aperture directly spill from sieve aperture, realize Preliminary screening; Then cylinder starts drive screen frame toward screen box medial movement, after screen frame is positioned at screen box completely, closed by chamber door, starter motor drives fan turns simultaneously, weight is blown out under the action of the forces of the wind compared with the tealeaves at the end on the right side of bracing frame, thus completes the screening of tealeaves; After screening, first opened by chamber door, cylinder restarts and drives screen frame to move to outside screen box, thus is conveniently taken out by tealeaves.
Support movements is driven to make screen frame be positioned at outside screen box or be positioned at inside screen box by cylinder, under the prerequisite avoiding external environment condition to affect tealeaves the selection result, improve tealeaves and put into the convenience of taking out in screening frame or from screening frame, thus improve the convenience of this tea screening device use.Tealeaves is respectively through the screening of screen frame and fan, and above-mentioned two procedures is separately carried out, and improves efficiency and the quality of screening.
In above-mentioned tea screening device, described connecting cylinder lateral wall has the guide pad of protrusion, lead is fixed with and this lead parallels with described guide part in described screen box, described guide pad is set on described lead, and under the effect of cylinder, described guide pad can along the axial translation of lead.
Being set on lead by arranging guide pad, guide effect being played to the movement of bracing frame, bracing frame is comparatively stably skidded off, further increase the convenience that this tea screening device uses.
In above-mentioned tea screening device, described lead has two and is positioned at connecting cylinder both sides, and described guide pad has two pieces and two guide pads are set on corresponding lead respectively.
By arranging two leads, while bracing frame is moved playing better guide effect, good supporting role is played to connecting cylinder, thus stability when effectively improving the work of this tea screening device.
In above-mentioned tea screening device, described guide pad and described connecting cylinder are integral type structure.
In above-mentioned tea screening device, the sidewall of described support portion offers the draw-in groove matched with described screen frame, and described screen frame is connected in described draw-in groove.
Screen frame is connected with the detachable of bracing frame to realize screen frame by being connected in draw-in groove, thus after screening, directly whole screen frame can be taken off and tealeaves is taken out, thus effectively improve the convenience that tealeaves takes, then improve the convenience that this tea screening device uses.
Compared with prior art, this tea screening device has the following advantages:
1, support movements is driven to make screen frame be positioned at outside screen box or be positioned at inside screen box by cylinder, under the prerequisite avoiding external environment condition to affect tealeaves the selection result, improve tealeaves and put into the convenience of taking out in screening frame or from screening frame, thus improve the convenience of this tea screening device use.Tealeaves is respectively through the screening of screen frame and fan, and above-mentioned two procedures is separately carried out, and improves efficiency and the quality of screening.
2, being set on lead by arranging guide pad, guide effect being played to the movement of bracing frame, bracing frame is comparatively stably skidded off, further increase the convenience that this tea screening device uses.
3, screen frame is connected with the detachable of bracing frame to realize screen frame by being connected in draw-in groove, thus after screening, directly whole screen frame can be taken off and tealeaves is taken out, thus effectively improve the convenience that tealeaves takes, then improve the convenience that this tea screening device uses.
Accompanying drawing explanation
Fig. 1 is the structural representation of this tea screening device.
In figure, 1, screen box; 1a, chamber door; 2, bracing frame; 2a, guide part; 2b, support portion; 3, screen frame; 4, connecting cylinder; 4a, guide pad; 5, cylinder; 6, motor; 7, fan; 7a, rotating shaft; 8, lead.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this tea screening device is made up of screen box 1, bracing frame 2, screen frame 3, connecting cylinder 4, cylinder 5, motor 6, fan 7 etc.
Screen box 1 is in cuboid and inside has cavity.This screen box 1 side is provided with opening and this sidewall is provided with the chamber door 1a that opening can be sealed.Bracing frame 2, screen frame 3, connecting cylinder 4, cylinder 5, motor 6 and fan 7 are all positioned at screen box 1.Wherein, bracing frame 2 is in inverted L shape, and specifically, this bracing frame 2 comprises the support portion 2b of horizontally disposed guide part 2a and vertically setting, and guide part 2a and support portion 2b is integral type structure.
As shown in Figure 1, guide part 2a is relative with chamber door 1a, screen frame 3 is rectangle and parallels with guide part 2a, the side that support portion 2b is relative with chamber door 1a offers the draw-in groove matched with screen frame 3, and screen frame 3 is connected in draw-in groove, is connected with the detachable of bracing frame 2 to realize screen frame 3, thus after screening, directly whole screen frame 3 can be taken off and tealeaves is taken out, thus effectively improve the convenience that tealeaves takes, then improve the convenience that this tea screening device uses.
Connecting cylinder 4 is arranged in screen box 1 in the horizontal direction, and the support portion 2b side opposing with chamber door 1a and connecting cylinder 4 are connected mutually, and motor 6 is fixed in connecting cylinder 4.In the present embodiment, connecting cylinder 4 is openend near one end of bracing frame 2, and connecting cylinder 4 other end is blind end.This connecting cylinder 4 is connected with support portion 2b phase by weldering earthing mode, and motor 6 is fixed in the blind end of connecting cylinder 4.As shown in Figure 1, fan 7 is positioned at bracing frame 2 and faces with chamber door 1a.The rotating shaft 7a of this fan 7 stretches out support portion 2b and is connected mutually with the output shaft of motor 6, thus realizes driving fan 7 to rotate by motor 6.
Cylinder 5 is fixed in screen box 1, and connecting cylinder 4 is between cylinder 5 and bracing frame 2.This connecting cylinder 4 is connected mutually with the piston rod of cylinder 5, and under the effect of cylinder 5, bracing frame 2 can stretch out described opening and be positioned at outside screen box 1.Further illustrate, the lateral wall of connecting cylinder 4 has the guide pad 4a of protrusion, be fixed with lead 8 and this lead 8 parallels with guide part 2a in screen box 1, guide pad 4a is set on lead 8, and under the effect of cylinder 5, guide pad 4a can along the axial translation of lead 8.
Further optimization, lead 8 has two and is positioned at connecting cylinder 4 both sides, guide pad 4a has two pieces and two guide pad 4a are set on corresponding lead 8 respectively, while bracing frame 2 moved playing better guide effect, good supporting role is played to connecting cylinder 4, thus stability when effectively improving the work of this tea screening device.In the present embodiment, guide pad 4a and connecting cylinder 4 are integral type structure.
When work just starts, bracing frame 2 is positioned at outside screen box 1.Then tealeaves is placed in screen frame 3, and the tealeaves or the impurity that are more now less than screen-aperture directly spill from sieve aperture, realize Preliminary screening; Then cylinder 5 starts drive screen frame 3 toward screen frame 3 medial movement, after screen frame 3 is positioned at screen box 1 completely, closed by chamber door 1a, starter motor 6 drives fan turns simultaneously, weight is blown out under the action of the forces of the wind compared with the tealeaves at the end on the right side of bracing frame 2, thus completes the screening of tealeaves; After screening, first opened by chamber door 1a, cylinder 5 restarts and drives screen frame 3 to move to outside screen box 1, thus is conveniently taken out by tealeaves.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.