CN102133935A - Logarithmic spiral type round bundling and forming device and method - Google Patents

Logarithmic spiral type round bundling and forming device and method Download PDF

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Publication number
CN102133935A
CN102133935A CN 201110000408 CN201110000408A CN102133935A CN 102133935 A CN102133935 A CN 102133935A CN 201110000408 CN201110000408 CN 201110000408 CN 201110000408 A CN201110000408 A CN 201110000408A CN 102133935 A CN102133935 A CN 102133935A
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China
Prior art keywords
logarithmic spiral
bundle
angle
guide rail
baling
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CN 201110000408
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Chinese (zh)
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CN102133935B (en
Inventor
王德成
高东明
王光辉
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中国农业大学
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Abstract

The invention relates to a logarithmic spiral type round bundling and forming device and a method. The logarithmic spiral type round bundling and forming device is characterized by comprising a logarithmic spiral type feeding mechanism, a logarithmic spiral type forming cabin and a hydraulic mechanism which are arranged on a frame, wherein the logarithmic spiral type feeding mechanism comprises a driving wheel, a main guide wheel, a plurality of driven guide wheels and a conveying belt surrounding all the wheels; the conveying belt of the main guide wheel and all the driven guide wheels is a section of logarithmic spiral type working surface; the forming cabin comprises two cabin walls rotatably arranged on the frame; the two cabin walls are symmetrically provided with logarithmic spiral type connecting sector-shaped and arc-line-shaped guide rails; a plurality of outer guide wheels corresponding to arc lines of the guide rails are arranged between the two cabin walls at the outer sides of the guide rails; a driving chain wheel arranged in front of the top ends of the two cabin walls and a driven chain wheel arranged at the tail ends of the two cabin walls are in meshed connection by two chains; the two chains are respectively limited in gaps among all the outer guide wheels and the guide rails; a series of pressing and bundling units are tightly lap-jointed between the two chains; and the hydraulic mechanism comprises two hydraulic cylinders hinged on the frame, and piston rods at the other ends of the two hydraulic cylinders are respectively hinged on the corresponding cabin walls.

Description

A kind of logarithmic spiral formula circle bundle building mortion and method
Technical field
The present invention relates to a kind of circle bundle bander and manufacturing process thereof, particularly about a kind of logarithmic spiral formula circle bundle building mortion and method.
Background technology
Circle bundle bander is a processing equipment of material being made cylindrical bundle shape thing, and its working process is that rotation is compressed into the circle bundle mass transport feeding facility, and adopts net or rope winding circle bundle.The advantage of circle bundle bander is simple in structure, service adjustment is convenient, the material applicability is wide, but compare with side's bundle bander, also exist the low shortcoming of operating efficiency, therefore, how to improve the operating efficiency and the operational reliability of circle bundle bander, the universal and popularization of circle being tied bander has significance.
By the analytical investigation of existing circle bundle bander is found: the phenomenon that gets congestion during the feeding material, and circle bundle forming speed is the major cause of influence circle bundle bander operation quality and operating efficiency slowly.The core component of circle bundle bander is the shaping cabin, and its function is to make material constantly rotation in the inner chamber in shaping cabin, forms the circle bundle gradually.In traditional shaping cabin, no matter which kind of form the baling parts take, the inner chamber that all baling parts surround all is cylindrical, this shaping cabin simple in structure, be convenient to processing, but material is from be fed into forming process, and cross-sectional area sharply diminishes, thereby the feeding difficulty takes place, blocks up, phenomenon such as feeding mouth damage of components.Adopt traditional circle bundle manufacturing process, circle is bundled in that material can constantly gather because of being compressed the creep that produces in the pressing process, and can not obtain discharging, and causes bundled needed power sharply to increase, the damage drive disk assembly.Have significant impact because the feeding homogeneity of circle bundle bander and baling change in resistance are shaped to bander circle bundle, therefore, require feeding as far as possible evenly, the baling change in resistance is even.
Summary of the invention
At the problems referred to above, it is even, smooth and easy to the purpose of this invention is to provide a kind of material feeding, little logarithmic spiral formula circle bundle building mortion and the method for circle bundle forming process medium power input fluctuation.
For achieving the above object, the present invention takes following technical scheme: a kind of logarithmic spiral formula circle bundle building mortion, it is characterized in that: it comprises logarithmic spiral formula feeding mechanism, logarithmic spiral formula shaping cabin and the hydraulic gear that is arranged on the frame, and the input end in described shaping cabin is positioned at the mouth of described feeding mechanism; Described feeding mechanism comprises the drive wheel that driven by power plant, capstan, somely takes turns a load-transfer device of setting from guide wheel with around each; Described capstan and each described described load-transfer device that supports from guide wheel are one section logarithmic spiral shape running surface; Described shaping cabin comprises symmetrically arranged two bulkheads, and described two bulkhead tops are rotated and are arranged on the described frame; Be symmetrically arranged with a guide rail on described two bulkheads, guide rail is logarithmic spiral, and to connect fan-shaped circular arc linear; Be provided with between described two bulkheads in the described guide rail outside and the cooresponding some outer guide wheels of the camber line of described guide rail, the frame in the place ahead, described two bulkhead top is provided with the drive sprocket of power plant driving; The end of described two bulkheads is provided with a driven sprocket, described drive sprocket is connected by two chain engages with described driven sprocket, two described chains are separately positioned on the two axial ends of described drive sprocket and driven sprocket, and are limited in the gap between each described outer guide wheel and the described guide rail; Be provided with a series of baling unit between the two described chains, closely overlap between each described baling unit; Described hydraulic gear comprises the hydraulic actuating cylinder that is hinged on respectively on the outer side frame of described two bulkheads, and the piston rod of the two described hydraulic actuating cylinder other ends is hinged on respectively on the described bulkhead of a corresponding side.
Described baling unit is dovetail form chain type baling unit, and each described dovetail form chain type baling unit comprises that a cross section is the baling plate of dovetail form, and the two ends of described baling plate are provided with the connecting panel that connects the described chain cochain of corresponding side sheet.
The hinged place of two described piston rods and two described bulkheads is provided with the hydraulic actuating cylinder safety lock.
In the described feeding mechanism, described load-transfer device is along capstan and respectively the logarithmic spiral shape running surface feature that forms of the direction from guide wheel to shaping cabin input end is as follows: suppose that x-o-y is is the system of axes of origin of coordinates o with preformed round bundle center in the shaping cabin, then logarithmic spiral shape running surface meets following curvilinear equation with the intersection of its extended line in the x-o-y face:
ρ=ke θcotλ
Wherein, ρ is a polar radius, and the at a point distance circle on expression logarithmic spiral shape running surface and its extended line is bundled in the distance at x-o-y face center; K obtains by the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ is the angle of polar radius ρ and coordinate axle o-x.λ is any tangent line on this logarithmic spiral and the angle of polar radius ρ; In the following formula, make m=cot λ, then The radius of curvature of at a point is on the curve I=1,2,3, the parametric equation of constructing under its rectangular coordinate system can get:
x=ke cosθ
y=ke sinθ
According to the above-mentioned parameter equation, and the certain θ angle of substitution, can obtain constituting the capstan of logarithmic spiral shape running surface and respectively from (x, y) coordinate position of guide wheel.
In the described shaping cabin, the track of the logarithmic spiral section of guide rail has following feature: suppose that x-o-y is justifying the system of axes that the bundle center is origin of coordinates o, the logarithmic spiral shape section of guide rail meets following curvilinear equation in the projection of x-o-y face:
ρ′=k′e′ θ′cotλ′
Wherein, ρ ' is a polar radius, and the at a point distance circle on the logarithmic spiral shape section of expression guide rail is bundled in the distance at x-o-y face center; K ' obtains by the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ ' is polar radius ρ ' and the angle of coordinate axle o-x.λ ' is any angle of tangent line and polar radius ρ ' on this logarithmic spiral; In the following formula, make m '=cot λ ', then The radius of curvature of at a point is on this logarithmic spiral I=1,2,3, the parametric equation of constructing under its rectangular coordinate system can get:
x=k′e m′θ′cosθ′
y=k′e m′θ′sinθ′
According to the above-mentioned parameter equation, and the certain θ ' angle of substitution, can obtain (x, y) coordinate position of each outer guide wheel; α '=90 °-λ ', the logarithmic spiral shape driving surface that each baling unit of α ' expression is formed and the friction angle of material; And α '≤ψ, ψ are the self-locking friction angle of material and baling plate unit.
A kind of logarithmic spiral formula of said apparatus circle bundle manufacturing process, it may further comprise the steps: 1) material is by the load-transfer device feeding of feeding mechanism, the running surface by the logarithmic spiral formula with the first compression of material after, send into the shaping cabin; 2) material falls into shaping bilge portion, and power plant drives drive sprocket and drives driven sprocket by chain and rotate, and material enters the material compression section of logarithmic spiral shape by the friction force upward movement of the baling unit on the chain, accepts second-compressed; 3) material continues to enter fan-shaped circle bundle maintenance section, along with continuous feeding, the compacting of material, forms the circle bundle at last; 4) circle bundle is shaped and by after being arranged on that the shaping cabin is exterior and wrapping up in net mechanism or bundle rope mechanism and wrap up in net or bundle rope, the drive sprocket stall, 5) rise of Driven by Hydraulic Cylinder piston rod, drive the shaping cabin and prop up, make justifying in the shaping cabin tie to emit and fall, a work cycle is finished.
The present invention is owing to take above technical scheme, it has the following advantages: 1, feeding mechanism of the present invention is owing to be provided with logarithmic spiral shape running surface, has constant feed angle between logarithmic spiral shape running surface and the shaping cabin, therefore, can make material evenly enter the shaping cabin, can solve material and feed the problem of blocking up.2, the present invention is owing to adopt logarithmic spiral formula shaping cabin and dovetail form baling plate, and when material was compressed rotation in the shaping cabin, the friction angle of strict control had guaranteed material and the self-locking of baling plate, avoided slide relative, improve bundling efficient, reduced the consumption of power of bundling, reduced the operation fault.3, the present invention is owing to be provided with dovetail form chain type baling unit between two chains, and adjacent dovetail form chain type baling unit in the course of the work, and overlap joint has improved the tightness in shaping cabin mutually, reduced loss of material, and the dovetail of projection has the effect that increases friction force.4, the present invention is shaped the compression section in cabin owing to have a logarithmic spiral shape guide rail, it is constant that this specific, unique shape makes material friction is subjected to force direction and the folded angle of sense of motion in feeding, when being shaped, thus the little purpose that reaches that feeding is smooth and easy, the input of circle bundle forming process medium power is fluctuateed.Structure design of the present invention is ingenious, and is easy to operate, can be widely used in the material bundling process.
Description of drawings
Fig. 1 is apparatus of the present invention structural representations
Fig. 2 is a feeding mechanism structural representation of the present invention
Fig. 3 is the present invention's cabin structure scheme drawing that is shaped
Fig. 4 is be shaped cabin guide rail and an outer guide wheel installation site scheme drawing of the present invention
Fig. 5 is a dovetail form chain type baling plate structure scheme drawing of the present invention
Fig. 6 is material feeding of the present invention, shaping track scheme drawing
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 1, apparatus of the present invention comprise logarithmic spiral formula feeding mechanism 1 and the logarithmic spiral formula shaping cabin 2 that is arranged on the frame, and shaping cabin 2 is arranged on the mouth of feeding mechanism 1.
As shown in Figure 1 and Figure 2, feeding mechanism 1 comprises a drive wheel 11 that is driven by power plant, a capstan 12, somely takes turns a load-transfer device 14 of setting from guide wheel 13 with around each.Drive wheel 11, capstan 12 and respectively be set in parallel on the frame by a guide wheel shaft respectively from guide wheel 13; Wherein, respectively be positioned at the oblique below of capstan 12, and be the logarithmic spiral trajectory alignment, until the input end that is aligned to shaping cabin 2 from guide wheel 13.The direction of load-transfer device 14 from capstan 12 to shaping cabin 2 input ends forms one section logarithmic spiral shape running surface 15 by respectively supporting from guide wheel 13, and logarithmic spiral shape running surface 15 forms a constant feed angle with shaping cabin 2 interior preformed circle bundles.
In the foregoing description, be provided with three at least from guide wheel 13.
As Fig. 1, Fig. 3, shown in Figure 4, shaping cabin 2 comprises two bulkheads 21, some outer guide wheels 22, a driven sprocket 23 and a drive sprocket 24 by the power plant driving.
Two bulkheads 21 are symmetrical arranged, each bulkhead 21 is synthesized in one by a quadrntnt and a logarithm scroll body respectively, the outer rim radian of bulkhead 21 is the curve (as shown in Figure 4) that a fan-shaped line becomes with a logarithm scroll, wherein logarithmic spiral shape section is material compression section 25, and quadrntnt Duan Weiyuan bundle keeps section 26.The top of two bulkheads 21 is rotated by rotating shaft 27 and is arranged on the frame.Be respectively arranged with on the relative two sides of two bulkheads 21 one with fan-shaped body concentric fan-shaped boss 28.The radian that is respectively arranged with a guide rail 29, two guide rails 29 on the bulkhead in two fan-shaped boss, 28 outsides is all consistent with the outer rim radian of bulkhead 21, and to connect fan-shaped circular arc linear for logarithmic spiral.
Some outer guide wheels 22 are arranged between two bulkheads 21 in guide rail 29 outsides along the outer rim radian parallel interval of bulkhead 21, and the two axial ends of each outer guide wheel 22 is connected with the bulkhead 21 of a corresponding side respectively.
Driven sprocket 23 is arranged on the end of two bulkheads 21, and its two axial ends connects the bulkhead 21 of a corresponding side respectively, and driven sprocket 23 is parallel with each outer guide wheel 22.
Drive sprocket 24 is arranged on the frame in the place ahead, two bulkheads, 21 top.Drive sprocket 24 is parallel with driven sprocket 23, and be connected with a joggle by two chains 30, two chains 30 are separately positioned on the two axial ends of drive sprocket 24 and driven sprocket 23, two chains 30 are limited in respectively in the gap between each outer guide wheel 22 and the respective track 29, and forming the logarithmic spiral consistent with bulkhead 21 outer rim radians, to connect fan-shaped circular arc linear.
Be provided with a series of baling unit 31 between two chains 30, closely overlap between each baling unit 31, the two ends of each baling unit 31 are corresponding respectively to be arranged on the chain sheet of a corresponding side chain bar 30.Two chains 30 guide rail 29 and outside transmission between the gap that forms of guide wheel 22, thereby make baling unit 31 form in the inboard in shaping cabin 2 one with the identical running orbit of guide rail 29 radians, it is linear to be that logarithmic spiral connects fan-shaped circular arc, wherein, the logarithmic spiral section is material compression section 25, and fan-shaped section keeps section 26 for the circle bundle.In the course of the work, a series of baling unit under the driving of drive sprocket 24 with chain 30 along guide rail 29 motion compresses materials, be shaped and wrap up in net back stop motion until circle bundle.Owing to closely overlap between each baling unit 31, therefore, can effectively stop material from leakage, reduced the bundling loss.
As shown in Figure 5, baling unit 31 can be dovetail form chain type baling unit, each dovetail form chain type baling unit comprises that a cross section is the baling plate 32 of dovetail form, the two ends of baling plate 32 are provided with the connecting panel 33 that connects the chain sheet on the corresponding side chain bar 30, are connected by rivet between connecting panel 33 and the chain sheet.
In the foregoing description, under the condition that satisfies the real work transmission performance, other shapes, for example I shape, flute profile etc. also can be adopted in the baling plate cross section in the baling unit 31.
As shown in Figure 3, two bulkheads, 21 arranged outside in shaping cabin 2 have hydraulic gear 4, hydraulic gear 4 comprises the hydraulic actuating cylinder 41 that is hinged on respectively on two bulkheads, the 21 outer side frames, the piston rod 42 of two hydraulic actuating cylinders, 41 other ends is hinged on respectively on the bulkhead 21 of shaping cabin 2 corresponding sides, the hinged place of two-piston bar 42 and two bulkheads 21 is provided with hydraulic actuating cylinder safety lock 43, the safety precaution when keeping in repair to be used for facility.
As shown in Figure 6, load-transfer device 14 in the feeding mechanism 1 along capstan 12 and respectively the logarithmic spiral shape running surface 15 that forms of the direction from guide wheel 13 to shaping cabin 2 input ends satisfy following feature: suppose that x-o-y is is the system of axes of origin of coordinates o with preformed round bundle centers in the shaping cabin 2, then logarithmic spiral shape running surface 15 meets following curvilinear equation with the intersection of its extended line 151 in the x-o-y face:
ρ=ke θcotλ
Wherein, ρ is a polar radius, and the at a point distance circle on expression logarithmic spiral shape running surface 15 and its extended line 151 is bundled in the distance at x-o-y face center; K obtains by the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ is the angle of polar radius ρ and coordinate axle o-x.λ is any tangent line on this logarithmic spiral and the angle of polar radius ρ.In the following formula, make m=cot λ, then The radius of curvature of at a point is on the curve (i=1,2,3), the parametric equation of constructing under its rectangular coordinate system can get:
x=ke cosθ
y=ke sinθ
According to the above-mentioned parameter equation, and the certain θ angle of substitution, can obtain constituting the capstan 12 of logarithmic spiral shape running surface 15 and respectively from (x, y) coordinate position of the guide wheel shaft of guide wheel 13.In the actual mechanical process because the needed λ value of the material of different compression properties is different, therefore, by change m value can obtain needed guide wheel shaft (x, y) coordinate position make things convenient for the user to adjust.
As shown in Figure 4, in the shaping cabin 2, guide rail 29 is consistent with the outer rim radian of bulkhead 21, it is the curve that a fan-shaped line becomes with a logarithm scroll, wherein, logarithmic spiral shape track has following feature: suppose that x-o-y is justifying the system of axes that the bundle center is origin of coordinates o, the logarithmic spiral shape section of guide rail 29 meets following curvilinear equation in the projection of x-o-y face:
ρ′=k′e′ θ′cotλ′
Wherein, ρ ' is a polar radius, and the at a point distance circle on the logarithmic spiral shape section of expression guide rail 29 is bundled in the distance at x-o-y face center; K ' obtains by the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ ' is polar radius ρ ' and the angle of coordinate axle o-x.λ ' is any angle of tangent line and polar radius ρ ' on this logarithmic spiral.In the following formula, make m '=cot λ ', then The radius of curvature of at a point is on this logarithmic spiral (i=1,2,3), the parametric equation of constructing under its rectangular coordinate system can get:
x=k′e m′θ′cosθ′
y=k′e m′θ′sinθ′
Because the radian of each outer guide wheel 22 formation is consistent with the guide rail radian, therefore, according to the above-mentioned parameter equation, and the certain θ ' angle of substitution, can obtain (x, y) coordinate position of each outer guide wheel 22 guide wheel shaft.In the actual mechanical process because the needed λ ' of the material value of different compression properties is different, therefore, by change m ' value can obtain needed guide wheel shaft (x, y) coordinate position make things convenient for the user to adjust.
In the foregoing description, α '=90 °-λ ', the logarithmic spiral shape driving surface that each baling unit of α ' expression is formed and the friction angle of material.α '≤ψ, wherein ψ is the self-locking friction angle of material and baling plate unit 31, the value of ψ can or be consulted relevant handbook by test and be obtained.Because therefore α '≤ψ, can guarantee the self-locking of material and baling unit 31, has avoided the slide relative of material and baling unit 31, has improved bundling efficient.
By the definition of above-mentioned logarithmic spiral as can be known, the folded angle λ (λ ') of the tangential direction of at a point and polar radius ρ (ρ ') is a certain value on the same curve, this unique advantages has guaranteed in the process of material by load-transfer device 14 feeding shaping cabins 2, the lift angle of material acceptance compression is constant, and sectional area evenly diminishes.Tie the design in shaping cabin with traditional circle and compare, the present invention has obviously increased the anti-clogging ability of facility.
As shown in Figure 6, the present invention's circle bundle manufacturing process is:
1) material is by load-transfer device 14 feedings of feeding mechanism 1, and the running surface 15 of the logarithmic spiral formula of feeding mechanism 1 through after compressing for the first time, is sent into shaping cabin 2 with material;
2) material falls into 2 bottoms, shaping cabin, under power plant drives, drive sprocket 24 drives driven sprocket 23 by chain 30 and rotates, baling unit 31 on the chain 30 is one section logarithmic spiral curve in the path of motion in this stage, material enters compression section 25 and accepts second-compressed under the friction force effect of a series of baling unit 31;
3) along with the continuous operation of chain, the material upward movement enters the circle bundle and keeps section 26, along with continuous feeding, the compacting of material, forms the circle bundle at last;
4) circle bundle is shaped and shaping cabin 2 is exterior wraps up in net mechanism or net or bundle rope are wrapped up in bundle rope mechanism by being arranged on;
5) hydraulic actuating cylinder 41 piston rod 42 rise, and drive shaping cabin 2 and prop up, and shaping cabin 2 interior circle bundles are emitted fall, and a work cycle is finished.
Wrap up in net mechanism and can adopt prior art, no longer describe in detail at this with bundle rope mechanism.
In the foregoing description, two bulkheads 21 in shaping cabin 2 can be other shapes, but it is linear that the guide rail 29 on two bulkheads 21 must be that logarithmic spiral connects fan-shaped circular arc, thus, the baling unit 31 that closely overlaps on two chains 30 could form the material compression section 25 of logarithmic spiral shape and fan-shaped circle bundle maintenance section 26 in shaping cabin 2.
In view of the restriction of contemporary manufacturing technology, part or the device with logarithmic spiral shape of the present invention, part curve are to form by a series of curve fittings that curvature can be led.Those of ordinary skill in the related art of the present invention are to be understood that: even adopt approximate logarithmic spiral also can embody the preceence of the present invention with respect to prior art.
The various embodiments described above only are used to illustrate the present invention, and wherein the structure of each parts, connection mode etc. all can change to some extent, and every equivalents of carrying out on the basis of technical solution of the present invention and improvement all should not got rid of outside protection scope of the present invention.

Claims (8)

1. a logarithmic spiral formula circle is tied building mortion, and it is characterized in that: it comprises logarithmic spiral formula feeding mechanism, logarithmic spiral formula shaping cabin and the hydraulic gear that is arranged on the frame, and the input end in described shaping cabin is positioned at the mouth of described feeding mechanism;
Described feeding mechanism comprises the drive wheel that driven by power plant, capstan, somely takes turns a load-transfer device of setting from guide wheel with around each; Described capstan and each described described load-transfer device that supports from guide wheel are one section logarithmic spiral shape running surface;
Described shaping cabin comprises symmetrically arranged two bulkheads, and described two bulkhead tops are rotated and are arranged on the described frame; Be symmetrically arranged with a guide rail on described two bulkheads, guide rail is logarithmic spiral, and to connect fan-shaped circular arc linear; Be provided with between described two bulkheads in the described guide rail outside and the cooresponding some outer guide wheels of the camber line of described guide rail, the frame in the place ahead, described two bulkhead top is provided with the drive sprocket of power plant driving; The end of described two bulkheads is provided with a driven sprocket, described drive sprocket is connected by two chain engages with described driven sprocket, two described chains are separately positioned on the two axial ends of described drive sprocket and driven sprocket, and are limited in the gap between each described outer guide wheel and the described guide rail; Be provided with a series of baling unit between the two described chains, closely overlap between each described baling unit;
Described hydraulic gear comprises the hydraulic actuating cylinder that is hinged on respectively on the outer side frame of described two bulkheads, and the piston rod of the two described hydraulic actuating cylinder other ends is hinged on respectively on the described bulkhead of a corresponding side.
2. a kind of logarithmic spiral formula circle bundle building mortion as claimed in claim 1, it is characterized in that: described baling unit is dovetail form chain type baling unit, each described dovetail form chain type baling unit comprises that a cross section is the baling plate of dovetail form, and the two ends of described baling plate are provided with the connecting panel that connects the described chain cochain of corresponding side sheet.
3. a kind of logarithmic spiral formula circle bundle building mortion as claimed in claim 1, it is characterized in that: the hinged place of two described piston rods and two described bulkheads is provided with the hydraulic actuating cylinder safety lock.
4. a kind of logarithmic spiral formula circle bundle building mortion as claimed in claim 2, it is characterized in that: the hinged place of two described piston rods and two described bulkheads is provided with the hydraulic actuating cylinder safety lock.
5. as claim 1 or 2 or 3 or 4 described a kind of logarithmic spiral formula circle bundle building mortions, it is characterized in that: in the described feeding mechanism, described load-transfer device is along capstan and respectively the logarithmic spiral shape running surface feature that forms of the direction from guide wheel to shaping cabin input end is as follows: suppose that x-o-y is is the system of axes of origin of coordinates o with preformed round bundle center in the shaping cabin, then logarithmic spiral shape running surface meets following curvilinear equation with the intersection of its extended line in the x-o-y face:
ρ=ke θcotλ
Wherein, ρ is a polar radius, and the at a point distance circle on expression logarithmic spiral shape running surface and its extended line is bundled in the distance at x-o-y face center; K obtains by the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ is the angle of polar radius ρ and coordinate axle o-x.λ is any tangent line on this logarithmic spiral and the angle of polar radius ρ; In the following formula, make m=cot λ, then The radius of curvature of at a point is on the curve I=1,2,3, the parametric equation of constructing under its rectangular coordinate system can get:
x=ke cosθ
y=ke sinθ
According to the above-mentioned parameter equation, and the certain θ angle of substitution, can obtain constituting the capstan of logarithmic spiral shape running surface and respectively from (x, y) coordinate position of guide wheel.
6. as claim 1 or 2 or 3 or 4 described a kind of logarithmic spiral formula circle bundle building mortions, it is characterized in that: in the described shaping cabin, the track of the logarithmic spiral section of guide rail has following feature: suppose that x-o-y is justifying the system of axes that the bundle center is origin of coordinates o, the logarithmic spiral shape section of guide rail meets following curvilinear equation in the projection of x-o-y face:
ρ′=k′e′ θ′cotλ′
Wherein, ρ ' is a polar radius, and the at a point distance circle on the logarithmic spiral shape section of expression guide rail is bundled in the distance at x-o-y face center; K ' obtains by the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ ' is polar radius ρ ' and the angle of coordinate axle o-x.λ ' is any angle of tangent line and polar radius ρ ' on this logarithmic spiral; In the following formula, make m '=cot λ ', then The radius of curvature of at a point is on this logarithmic spiral I=1,2,3, the parametric equation of constructing under its rectangular coordinate system can get:
x=k′e m′θ′cosθ′
y=k′e m′θ′sinθ′
According to the above-mentioned parameter equation, and the certain θ ' angle of substitution, can obtain (x, y) coordinate position of each outer guide wheel; α '=90 °-λ ', the logarithmic spiral shape driving surface that each baling unit of α ' expression is formed and the friction angle of material; And α '≤ψ, ψ are the self-locking friction angle of material and baling plate unit.
7. a kind of logarithmic spiral formula circle bundle building mortion as claimed in claim 5, it is characterized in that: in the described shaping cabin, the track of the logarithmic spiral section of guide rail has following feature: suppose that x-o-y is justifying the system of axes that the bundle center is origin of coordinates o, the logarithmic spiral shape section of guide rail meets following curvilinear equation in the projection of x-o-y face:
ρ′=k′e′ θ′cotλ′
Wherein, ρ ' is a polar radius, and the at a point distance circle on the logarithmic spiral shape section of expression guide rail is bundled in the distance at x-o-y face center; K ' obtains by the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ ' is polar radius ρ ' and the angle of coordinate axle o-x.λ ' is any angle of tangent line and polar radius ρ ' on this logarithmic spiral; In the following formula, make m '=cot λ ', then The radius of curvature of at a point is on this logarithmic spiral I=1,2,3, the parametric equation of constructing under its rectangular coordinate system can get:
x=k′e m′θ′cosθ′
y=k′e m′θ′sinθ′
According to the above-mentioned parameter equation, and the certain θ ' angle of substitution, can obtain (x, y) coordinate position of each outer guide wheel; α '=90 °-λ ', the logarithmic spiral shape driving surface that each baling unit of α ' expression is formed and the friction angle of material; And α '≤ψ, ψ are the self-locking friction angle of material and baling plate unit.
8. logarithmic spiral formula circle bundle manufacturing process as device as described in the claim 1~7, it may further comprise the steps:
1) the load-transfer device feeding of material by feeding mechanism, the running surface by the logarithmic spiral formula with the first compression of material after, send into the shaping cabin;
2) material falls into shaping bilge portion, and power plant drives drive sprocket and drives driven sprocket by chain and rotate, and material enters the material compression section of logarithmic spiral shape by the friction force upward movement of the baling unit on the chain, accepts second-compressed;
3) material continues to enter fan-shaped circle bundle maintenance section, along with continuous feeding, the compacting of material, forms the circle bundle at last;
4) circle bundle is shaped and by after being arranged on that the shaping cabin is exterior and wrapping up in net mechanism or bundle rope mechanism and wrap up in net or bundle rope, the drive sprocket stall,
5) the Driven by Hydraulic Cylinder piston rod rises, and drives the shaping cabin and props up, and makes justifying in the shaping cabin tie to emit and falls, and a work cycle is finished.
CN2011100004085A 2011-01-04 2011-01-04 Logarithmic spiral type round bundling and forming device and method CN102133935B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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