CN209660030U - A kind of automatic tobacco bagging device - Google Patents

Abstract

A kind of automatic tobacco bagging device, including positioning mechanism (shell of whole device and motor, installation lid), transmission mechanism (including cam mechanism, connector, progressive mechanism), executing agency (including polybag, it is I-shaped buckle and rubber band), the approximate regular hexagonal prism of the monnolithic case of device.Above-mentioned cam mechanism is made of motor, motor shaft, stopper ring, rectangular connecting column, cam, short compressed spring and push rod, for pushing connector, moves back and forth up and down it；Progressive mechanism is made of positioning plate, long compressed spring, slide switch, actuating station limiting bracket, progressive end limiting bracket and left and right locating cover, is performed in unison with after mechanism completes bagging movement and is completed progressive movement again.The utility model is at low cost compared with existing device, and structure is simple, and operation is easy, and overall weight is lighter, and reduces tobacco grower and cover the intensity of bag operation, make the continuity enhancing for covering bag operation, and efficiency improves, labour needed for reducing cigarette strain planting site.

Description

A kind of automatic tobacco bagging device

Technical field

The present invention relates to the field of operation that tobacco grower during tobacco growing is used to inhibit its apical dominance, relate generally to one kind certainly The device of dynamic tobacco bagging.

Background technique

Traditional artificial tobacco topping sprout-inhibiting occupies a big chunk labour.It therefore, is the entire tobacco in field of adaptation The process of mechanization needs to tobacco planting to improve production method, carries out tobacco in field mechanization topping production operation, Ke Yiyou Labor intensity is reduced to effect, improves working condition, improve production efficiency and meets the expansion production-scale demand of tobacco field.In order to from It fundamentally lightens one's labor, and also to reduce the nicotine content of cigarette strain, improves the availability and safety of upper tobacco leaf, Guizhou Tobacco research institute in 2015 exempts from topping technology in the main cigarette district test spread cigarette strain bagging of the whole province.The technology is in cigarette Strain Topping Stage, which is stopped, to be entangled sealing with coloured plastics material bag for the small tobacco leaf of 3-5 piece and inflorescence of topmost, utilize screening after picking leaves piece Light and high temperature inhibit cigarette strain apical growth, so that cigarette strain is gradually eliminated apical dominance, while lateral bud being inhibited to grow, make nutriment collection Middle supply blade plays the role of increasing of quality and production either to upper blade or middle and lower part blade.With traditional chemical sprout inhibition skill Art is compared, tobacco bagging exempt from topping technology inhibit cigarette strain apical dominance effect is lasting, can make its top hacking unfold compared with It is good, and it is conducive to reduce cigarette strain close to top vane nicotine content, the content of remains of pesticide is reduced, i.e., can not only effectively improve tobacco leaf Quality and safety, also reduce the labor intensity of tobacco grower.But it is manually lower to the efficiency of every plant of tobacco progress bagging, therefore Need to design a automatic tobacco bagging device, in order to labour is reduced, device is allowed to be automatically performed bagging movement, so as to Exempt from a wide range of popularization of topping technology in this tobacco bagging, improves Ecological Feature sound tobacco quality.

Nowadays most of automatic bag sheathing devices all use more complex structure and control system, part automatic bag sheathing The transmission system of device even additionally uses hydraulic or Pneumatic Transmission, not square although its degree of automation is relatively high Just staff carries and replacement work-yard.Therefore, the automatic tobacco bagging device for designing a small portable is that have very much must It wants.

Summary of the invention

It is not only simple but also easy to operate the invention proposes a kind of automatic tobacco bagging device of small portable.Guaranteeing to make Under the premise of industry requires, device cost of manufacture can be reduced, makes tobacco grower acceptant, realized and mitigate intensity of workers, The purpose for reducing labour cost and raising labour productivity.The present invention realize goal of the invention the technical solution adopted is that: it is a kind of from Dynamic tobacco bagging device, it is characterised in that: the device includes positioning mechanism, executing agency and three groups of phases being distributed in equilateral triangle Same transmission mechanism, monnolithic case are a regular hexagonal prism；

It is in regular hexagon that positioning mechanism, which includes outer ring in regular hexagon but the rounded device installation lid of inner ring, Internal and external cycle, Shell, be mounted on equilateral triangle distribution form shell outer ring three groups of motor housings for fixing motor and motor installation Lid；Each group of transmission mechanism includes the cam mechanism for converting rotational motion into linear reciprocating motion, connector and in cam Two groups of identical progressive mechanisms that mechanism two sides are symmetric；Executing agency includes the modeling for shrouding tobacco leaf and shading sealing Material bag is wrapped in buckleing for what the rubber band of contraction and six were equally spaced convenient for the I-shaped of transmitting for plastic bag mouth.

Automatic tobacco bagging device can disposably install 1-60 group executing agency, i.e. once mounting can at most complete 60 Secondary set bag operation；(elastic deformation is the stretching for referring to restore to the deformation of rubber band maximum flexibility, is not in break or can not The situation of recovery is the limitation to rubber band elasticity) to 700mm, minimum, which can be shunk, is formed as diameter 25mm for i.e. stretchable perimeter Circle, i.e. the non-stretched Zhou Changwei 3.14*25mm of rubber band；I-shaped button thickness 0.5mm.

Installation and positioning on the inside of shell for executing agency and transmission mechanism, installation lid are connected with shell by screw It connects, for closing positioning mechanism and transmission mechanism.

The movement transmittance process of transmission mechanism is as follows: the rotary motion of motor is converted gap by each group of cam mechanism It up and down reciprocatingly moves along a straight line, linear motion stroke is 5mm, and pumping for interval is transferred to it by connector The progressive mechanism of two sides, i.e., two I-shaped buckle are released on control polybag, then three groups of transmission mechanism synchronous effects, simultaneously Six I-shaped buttons are discharged, i.e., so that executing agency completes the set bag operation of one plant of three to five, tobacco seedlings top tobacco leaf；In cam The intermittent time section of mechanism kinematic, device is moved to above another plant of tobacco seedlings and is covered bag operation next time.

Cam mechanism is made of motor, motor shaft, stopper ring, rectangular connecting column, cam, short compressed spring and push rod, For pushing connector, move back and forth up and down it:

Wherein, stopper ring is mounted on motor shaft, limits the movement of cam axial direction；Cam is fixed on motor shaft end, and pushes away Bar is in line face contact；The push rod other end is threadedly attached on rectangular connecting column；Short compressed spring one end and interior of shell branch Rectangular platform contact out, the other end and push rod inner portion annular face contacts；Rectangular connecting column is connected by screw to connector, Passing movement.

Progressive mechanism by positioning plate, long compressed spring, slider switch, actuating station limiting bracket, progressive end limiting bracket with And right locating cover, left locating cover composition, wherein actuating station limiting bracket and progressive end limiting bracket are moved up and down with connector, are used It is acted in executing bagging, and next executing agency is made to be in preparation state；

Wherein, positioning plate is screwed on the shell；One end of long compressed spring is connect with slider switch, the other end with Positioning plate is in plane-plane contact；Actuating station limiting bracket and progressive equal one end of end limiting bracket are connect with connector groove, another End is touched with I-shaped snapping, there is the spacing of 1mm between the two；I-shaped button one end is stuck in progressive mechanism gap, the other end with Rubber band is connected；Right locating cover, left locating cover install six corner points of regular hexagon inside the housing, the two by locating slot Collective effect limits long compressed spring, slider switch, actuating station limiting bracket and progressive end limiting bracket can only be in above-below direction Movement.

Progressive end limiting bracket opening has the gap of 5mm, provides installation space for I-shaped button；Right locating cover, Zuo Ding There is the slot of an a height of 0.8mm in the part of position lid and the touching of I-shaped snapping, primary round-trip because of I-shaped button thickness 0.5mm Linear motion only discharges one group of executing agency.

In order to achieve the above objectives, device primary structure has: provide power motor (model: 50GB3217-24V-10, with Motor shaft is substantially integral, and motor shaft and motor center have certain offset or dish), by rotary motion to convert interval reciprocal The cam mechanism of linear motion, realize the progressive progressive mechanism of polybag, executive component (with it is I-shaped buckle, the modeling of rubber band Material bag), the crust of the device for positioning and installing.

Automatic tobacco bagging device provided by the invention includes polybag, device installation lid, shell, motor housing, motor Installation lid, right locating cover, left locating cover, connector, slider switch, long compressed spring, rubber band, it is I-shaped buckle, motor, motor Axis, stopper ring, actuating station limiting bracket, progressive end limiting bracket, positioning plate, cam, push rod, short compressed spring, rectangular connection Column.The Internal and external cycle of shell is in regular hexagon, and three groups of transmission mechanisms are respectively positioned on interior of shell, and three groups of electricity are also mounted in its outer ring Machine installation lid and motor housing, are distributed in equilateral triangle；It is in regular hexagon that device, which installs lid outer ring, and inner ring is rounded, for sealing Close whole device bottom；Placement of the device ring internal cavity for polybag (being no more than 60) bag body, to guarantee that polybag is inverted When do not fall partially, thickening type, surface polybag with a certain toughness (using high-strength polyethylene material) need to be chosen；Cam one side It is contacted with stopper ring end face, center is fixed on motor shaft end, and curved surface and push rod are in line face contact, provides the row of linear reciprocating motion Journey；The push rod other end is threadedly attached on rectangular connecting column, belongs to the execution body of interval linear reciprocating motion；Short compression bullet Spring one end is contacted with the rectangular platform that interior of shell is paid, the other end and push rod inner portion annular face contacts, is transported in reciprocating linear Push rod is contacted always with cam in dynamic, and push rod is allowed to reset, and slows down elliptical gear；Rectangular connecting column and connector pass through screw Connection, main function are connection push rod and connector；Positioning plate is screwed on the shell, and it is certain to give long compressed spring Pre compressed magnitude, and support platform is provided to progressive mechanism；One end of long compressed spring is connect with slider switch, the other end and positioning Plate is in plane-plane contact, and main function is to generate 5mm decrement, and discharging I-shaped button resets slider switch later；Actuating station limit Position bracket and progressive equal one end of end limiting bracket are connect with connector groove, and the other end is connect with slider switch, between the two There is the spacing of 1mm, the effect of progressive end limiting bracket is the transverse shifting and the extra I-shaped button of blocking for limiting I-shaped button Be released, and slider switch driven to move down, the effect of actuating station limiting bracket be stop it is in running order I-shaped Button is released immediately；I-shaped button one end is stuck in progressive mechanism gap, and the other end is connected with rubber band, effect be depend on it is soft The rubber band of property, belongs to by progressive main part；Right locating cover, left locating cover install inside the housing positive six by locating slot Six corner points of side shape, the two collective effect are limited to long compressed spring, slider switch, actuating station limiting bracket and progressive end Position bracket provides track, and limiting above-mentioned part can only move in above-below direction；A rubber band and six are wound on polybag The I-shaped button being equally spaced belongs to the epilog portion of set bag operation.

The beneficial effects of the present invention are: it is designed using pure mechanic structure, design principle is reliable, and structure is simple, and device is small Type is light, and can effectively lower labor intensity, improves working efficiency.

Detailed description of the invention

Fig. 1 is the overall structure diagram (the inversion figure for belonging to working condition) of device；

Fig. 2 is the working condition one of device: the installation of rubber band i.e. softened state before bagging；

Fig. 3 is the working condition two of device: bagging terminates the contraction state of rubber band；

Fig. 4 is the overall structure diagram of the transmission mechanism of device；

Fig. 5 is that detailed construction faces supplementary explanation schematic diagram inside the transmission mechanism of device；

Fig. 6 is that the vertical view supplementary explanation schematic diagram of detailed construction inside the transmission mechanism of device (shows only Partial key Components)；

Fig. 7 is the progressive mechanism of device and the supplementary explanation schematic diagram of executing agency junction, belongs to Fig. 5 upper right portion Partial enlarged view (its right side partial enlarged view part conceals I-shaped button)；

Fig. 8 is the supplementary explanation schematic diagram of detailed construction inside the cam mechanism of device；

In figure: 1, polybag, 2, installation lid, 3, shell, 4, motor housing, 5, motor installation lid, 6, right locating cover, 7, Left locating cover, 8, connector, 9, slider switch, 10, long compressed spring, 11, rubber band, 12, I-shaped button, 13, motor, 14, Motor shaft, 15, stopper ring, 16, actuating station limiting bracket, 17, progressive end limiting bracket, 18, positioning plate, 19, cam, 20, push away Bar, 21, short compressed spring, 22, rectangular connecting column.

Specific embodiment

(Fig. 1 is in working condition inversion figure, that is, upper and lower bit reversal when working) as shown in Figure 1, tobacco bagging device need Achieve the effect that final is to cover three to five of tobacco topmost small tobacco leaves and inflorescence in polybag 1 used, to its into Row shading and encapsulation process achieve the purpose that eliminate cigarette strain apical dominance, i.e., polybag 1 is opaque, polybag 1 have it is certain Support strength (i.e. slightly thick with respect to common plastics bag to provide support and avoid light transmission) is to ensure to form, i.e., when polybag 1 stands upside down The weight of its own can be supported (characteristic is determined by the material and thickness of polybag, has similar plastics bag on the market)；According to tune Look into, the resemblance of cigarette strain: the small tobacco leaf of 3-5 piece of topmost and the outer diameter of inflorescence are in 200mm or so, trunk stem and away from stem The outer diameter summation of the root of blade of 5mm or so (forms perimeter apart from the position blade root 5mm, blade root and stem in 30mm or so It is substantially suitable with the perimeter of the circle of 30mm diameter).Following schematic diagram and implementation steps have five groups of executing agencies (to pacify with device Fill five polybags) for be illustrated.

As shown in Fig. 2, rubber band 11 is in softened state before tobacco bagging device bagging, shape is side length 115mm's Regular hexagon, Zhou Changwei 690mm, in the elastic deformation range of stretch of rubber band 11, and the regular hexagon inscribed circle diameter 199.2mm, approximate 200mm can satisfy above-mentioned tobacco leaf outer diameter requirement；As shown in figure 3, rubber band 11 is shunk after device bagging State is the circle of diameter 30mm, meets above-mentioned root outer diameter requirement, and diameter is greater than minimum of contraction value (the i.e. original length of rubber band 11 It is formed by the circle of diameter 25mm), exist and centainly tighten power, so that bagging is stronger；

As shown in Figure 4,5, 6, transmission mechanism is symmetrical, only Fig. 4, the right locating cover on right side is concealed in 5 The right locating cover 6 and left locating cover 7 on right side are concealed in 6, Fig. 6.The main operational principle of the device are as follows: (actually answer five groups Used time, as far as possible be no more than 60 groups, i.e. 1 to 60 group) executing agency, i.e., with rubber band 11 and it is I-shaped buckle 12 polybag 1 one It is same to be encased in device (executing agency is packed into from 3 upper surface of shell, and provision for disengagement again is not needed), executing agency's group and group Between rubber band 11 and I-shaped to buckle 12 be gradually up to be superimposed to be combined, and polybag 1 is to cover one side with one Formula be combined (for example, with five groups of executing agencies be one big group, before executing agency is installed, each big group of execution machine Structure in the above described manner combination finish, can be used in practical operation 60 groups for one big group).(Fig. 7 upper left as shown in Figure 7 Show rubber band 11 and it is I-shaped buckle 12 installation relation, the rubber band 11 of top and I-shaped buckle 12 relative to lower section Rubber band 11 and I-shaped button-type 12 are to moving to left；Partial enlarged view part on the right side of Fig. 7 conceals I-shaped button 12, and it is left fixed to illustrate The groove position of 0.8mm in the lid 7 of position), before bagging, first have to ensure that the I-shaped button 12 of first group of executing agency is located at (card ) between progressive end limiting bracket 17 and actuating station limiting bracket 16, the I-shaped button 12 of the second to five group executing agency is located at (since there are the cards of 0.8mm high for right locating cover 6, left locating cover 7 between (being stuck in) progressive end limiting bracket 17 and slider switch 9 Slot, so the I-shaped button 12 of first group of executing agency and the I-shaped button 12 of the second to five group executing agency are laterally to be staggered , as shown in Fig. 7 upper left), then device is placed in above the cigarette strain for wanting bagging, starts motor 13, band moving cam 19 revolves Turn, starts to carry out set bag operation.As shown in figure 8, being gradually swiveled into its distal end to cam 19, to be in far process of stopping (i.e. convex Wheel driven member-push rod stops motionless transient state in the position farthest away from the cam centre of gyration) when, push rod 20 pushes away down therewith It moves to its extreme lower position, because rectangular connecting column 22 has been connected, push rod 20 and connector 8, push rod 20 can be with follower links 8 move down together, positional relationship as shown in Figure 5, and two groups of progressive end limiting brackets 17 that 8 both ends of connector are hooked respectively It also moves down therewith with actuating station limiting bracket 16, drives the I-shaped button 12 and slider switch of the second to five group executing agency 9 move down, thus the I-shaped button 12 of first group of executing agency from right locating cover 6, left locating cover 7 card slot from be released, The rubber band 11 of first group of executing agency is shunk, and plastic bag mouth is driven to shrink.So far, it is dynamic to complete bagging for first group of executing agency Make, and is separated with device.

Since the polybag 1 between executing agency's group and group is combined in such a way that one covers one, so one There are adsorption capacities (after first polybag is removed between the polybag 1 of group executing agency and the polybag 1 of another group of executing agency Cause pressure slightly to reduce, can overcome by the intensity of polybag itself), but because of the polybag 1 of one group of executing agency When contraction, air is entered in the gap of two polybags, reduces above-mentioned adsorption capacity, then device can continue to work normally.

As shown in fig. 7, being limited in left positioning by long compressed spring 10(after the completion of the bagging movement of first group of executing agency Between lid 7 and right locating cover 6) complete progressive end limiting bracket 17, actuating station limiting bracket 16, the second to five group executing agency I-shaped button 12, the upward reset of slider switch 9, and in the reseting procedure of above-mentioned part, due to second group of executing agency The pulling force effect of rubber band 11, so that the I-shaped button 12 of second group of executing agency enters the card of right locating cover 6, left locating cover 7 At slot, while the lateral displacement by actuating station limiting bracket 16 is limited, and can only be moved to progressive end limiting bracket 17 and be executed The gap 1mm between limiting bracket 16 is held, " the I-shaped button in first group of executing agency during previous action is become 12 ", it prepares for the movement of bagging next time, and the I-shaped button 12 of third to five groups of executing agencies will receive progressive end limit branch The length travel of frame 17 limits, 12 lateral alternate of I-shaped button with second group of executing agency.So far, second group of executing agency is complete At progressive movement, third completes the longitudinal movement of 0.5mm to five groups of executing agencies.

During this period, cam 19 is still rotated with motor 13, and in rotation to proximal part or so, i.e., cam 19 is in and closely stops Process (i.e. cam follower-push rod stops motionless transient state in the position nearest away from the cam centre of gyration), push rod 20 does not have There is generation to move up and down stroke, device can be moved to above second plant of tobacco in this section of interval time, carries out second of bagging.Such as This until 1 use of polybag of the five groups of executing agencies filled finishes, closes motor 13 repeatedly, then reinstalls (i.e. another in groups Outer one big group) executing agency, repeat above-mentioned workflow until set bag operation is completed.

The rated speed of selected motor is 7.5 turns per minute, i.e. motor each rotation is taken time as 8s, complete during this period It is moved to above next plant of tobacco at device to the bagging movement of one plant of tobacco and from one plant of tobacco.To the people of operating device Member, the time is sufficient, while the time is less than the time of artificial bagging operation, manually (including opens bag to one plant of tobacco bagging And bolt bag movement) and be moved at another plant of tobacco take time for 12s (by artificial bagging it is most fast time calculating, ignore The factor that speed can slow down after multiple bagging).

For ease of operation or the device is moved, 3 outer ring of shell of device can separately install expandable handle and electricity additional Machine switchs the auxiliary devices such as extended line.

Above content is in conjunction with specific embodiment further supplementary explanation made for the present invention, but it cannot be assumed that this hair Bright specific implementation is confined to above description.For those of ordinary skill in the art, design of the invention is not being departed from And in the case where principle, corresponding replacement, simple deformation can be done to above-described embodiment, range of the invention is wanted by appended right It asks and its equivalent limits.

Claims (7)

1. a kind of automatic tobacco bagging device, it is characterised in that: the device includes positioning mechanism, executing agency and is in equilateral triangle Three groups of identical transmission mechanisms of distribution, monnolithic case are a regular hexagonal prism；

It is in regular hexagon that positioning mechanism, which includes outer ring in regular hexagon but the rounded device installation lid (2) of inner ring, Internal and external cycle, Shell (3), be mounted on equilateral triangle distribution form shell (3) outer ring for fixing three groups of motor housings of motor (13) (4) and (5) are covered in motor installation；Each group of transmission mechanism include the cam mechanism for converting rotational motion into linear reciprocating motion, Connector (8) and two groups of identical progressive mechanisms being symmetric in cam mechanism two sides；Executing agency includes being used for cage The cover tobacco leaf polybag (1) that simultaneously shading seals is wrapped in the equidistant for the rubber band (11) of contraction and six of plastic bag mouth The I-shaped button (12) convenient for transmitting of distribution.

2. a kind of automatic tobacco bagging device according to claim 1, which is characterized in that this device can disposably be installed 1-60 group executing agency, i.e. once mounting can at most complete 60 set bag operations；Rubber band (11) maximum flexibility deformation can Perimeter is enough stretched to 700mm, minimum can shrink the circle for being formed as diameter 25mm, the i.e. non-stretched Zhou Changwei of rubber band (11) 3.14*25mm；I-shaped button (12) thickness 0.5mm.

3. a kind of automatic tobacco bagging device according to claim 1, which is characterized in that for executing on the inside of shell (3) The installation and positioning of mechanism and transmission mechanism, installation lid (2) is attached with shell (3) by screw, for closing localization machine Structure and transmission mechanism.

4. a kind of automatic tobacco bagging device according to claim 1, which is characterized in that the movement of transmission mechanism was transmitted Journey is as follows: each group of cam mechanism converts the rotary motion of motor (13) in the up and down reciprocatingly linear motion in gap, straight line Movement travel is 5mm, and pumping for interval is transferred to the progressive mechanism of its two sides by connector (8), that is, is controlled Two I-shaped buckle are released on polybag processed, then three groups of transmission mechanism synchronous effects, while discharging six I-shaped buttons, i.e., So that executing agency completes the set bag operation of one plant of three to five, tobacco seedlings top tobacco leaf；In the intermittent time of cam mechanism movement Device is moved to above another plant of tobacco seedlings and is covered bag operation next time by section.

5. a kind of automatic tobacco bagging device according to claim 1, which is characterized in that cam mechanism by motor (13), Motor shaft (14), stopper ring (15), rectangular connecting column (22), cam (19), short compressed spring (21) and push rod (20) are constituted, For pushing connector (8), move back and forth up and down it:

Wherein, stopper ring (15) is mounted on motor shaft (14), limits the movement of cam axial direction；Cam (19) is fixed on motor shaft End is in line face contact with push rod (20)；Push rod (20) other end is threadedly attached on rectangular connecting column (22)；Short compression bullet Spring (21) one end is contacted with the rectangular platform paid inside shell (3), the other end and push rod (20) inner portion annular face contacts；Side Shape connecting column (22) is connected by screw to connector (8), passing movement.

6. a kind of automatic tobacco bagging device according to claim 1, which is characterized in that progressive mechanism is by positioning plate (18), long compressed spring (10), slider switch (9), actuating station limiting bracket (16), progressive end limiting bracket (17) and the right side are fixed Position lid (6), left locating cover (7) composition, wherein actuating station limiting bracket (16) and progressive end limiting bracket (17) are with connector (8) It moves up and down, for executing bagging movement, and next executing agency is made to be in preparation state；

Wherein, positioning plate (18) is screwed on shell (3)；One end and slider switch (9) of long compressed spring (10) are even It connects, the other end and positioning plate (18) are in plane-plane contact；Actuating station limiting bracket (16) and progressive end limiting bracket (17) equal one end It is connect with connector (8) groove, the other end is contacted with I-shaped button (12), there is the spacing of 1mm between the two；I-shaped button (12) one end is stuck in progressive mechanism gap, and the other end is connected with rubber band (11)；Right locating cover (6), left locating cover (7) pass through Locating slot is mounted on six corner points of the internal regular hexagon of shell (3), and the two collective effect limits long compressed spring (10), slides Block switch (9), actuating station limiting bracket (16) and progressive end limiting bracket (17) can only move in above-below direction.

7. a kind of automatic tobacco bagging device according to claim 6, which is characterized in that progressive end limiting bracket (17) is opened There is the gap of 5mm at mouthful, provides installation space for I-shaped button (12)；Right locating cover (6), left locating cover (7) and I-shaped button (12) there is the slot of an a height of 0.8mm in the part contacted, because of I-shaped button (12) thickness 0.5mm, primary round-trip straight line fortune It is dynamic only to discharge one group of executing agency.