CN206068739U

CN206068739U - A kind of moving material pause device based on special spiral rod

Info

Publication number: CN206068739U
Application number: CN201621057431.2U
Authority: CN
Inventors: 张连东; 赵德颖
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2016-09-14
Filing date: 2016-09-14
Publication date: 2017-04-05
Anticipated expiration: 2026-09-14

Abstract

The utility model belongs to the technical field of material packaging and transmission equipment, and provides a continuous material temporary stop device based on a special-shaped screw, including a conveyor belt, a feeding screw, a driving device and a supporting device. The feeding screw is located on both sides of the conveyor belt and connected to the Two special-shaped screws parallel to the conveyor belt, the two special-shaped screws rotate synchronously in opposite directions, and the fed materials with the same shape are connected head to tail and lined up from one end of the two special-shaped screws. Each material to be fed is output to the conveyor belt from the other end of the two special-shaped screws after temporarily stopping at a specific position for a certain period of time. The screw speed can also be adjusted according to production requirements to match the production line. The whole process is high-speed and stable without rigid impact of movement. The device adopts modular design and has the characteristics of low cost, simple and compact structure, convenient installation and debugging, high efficiency and stable performance.

Description

A kind of moving material pause device based on special spiral rod

Technical field

This utility model is related to material package transmission equipment technical field, more particularly to a kind of company based on special spiral rod Continuous material pause device.

Background technology

Modern society's commodity competition in trade flows, under the premise of product quality is ensured, product packaging shape Formula is also with rapid changepl. never-ending changes and improvements, requirement more and more higher of the consumer to commodity outer package, and product appearance and orthofunction are combined and met The requirement of consumer.Package packing machine is the higher plant equipment of automaticity, and it can increase substantially production efficiency, is improved Production environment, reduces production cost, improves commodity quality, and increases added value of product, so as to strengthen the market competitiveness, the band of commodity Carry out bigger Social benefit and economic benefit.

It is frequently necessary to be paused in material continuous conveying process in present-day procedure complete fill, detection, clear Wash, the operation such as stamp, labeling, continuous thing is realized using pneumatic means or interval mechanical mechanism device etc. typically on existing production line The pause of material, the impact of production process medium velocity are big, and work tempo is slow, it is impossible to accomplish high speed, stable feed, cause production Efficiency is reduced, and these devices install mechanism's complexity on a production line, is taken up room big, and in production process, noise is big, cost It is high, it is impossible to meet the production requirement of current product packaging.There is no using special spiral rod to continuous conveying in process of production at present During material carry out the device of pause.

The content of the invention

The purpose of this utility model is to provide a kind of moving material pause device based on special spiral rod, can be fine Ground overcomes the defect of prior art, realizes little simple structure, noise, continuous high speed and stablizes shock-free temporary transient in ad-hoc location The purpose of pause material.

To achieve these goals, scheme of the present utility model is：A kind of moving material based on special spiral rod temporarily stops Pause device, including conveyer belt, feeding screw, driving means and support meanss, and driving means are used to drive feeding screw, feed spiral shell Bar and driving means are detachably arranged in support meanss；It is described used for conveyer belt to be fed thing in continuous conveying shape identical Material, the feeding screw is two special spiral rods positioned at conveyer belt upper end both sides and parallel with conveyer belt, two special spiral rods Synchronous rotary in opposite direction, the shape identical be fed material it is from beginning to end form a line it is defeated from two special spiral rod one end Enter, with special spiral rod pitch and groove depth change each be fed material after ad-hoc location pause certain hour, Export on conveyer belt from the other end of two special spiral rods.

Preferably, the special spiral rod includes first paragraph, second segment, the 3rd section and the 4th section, and the first paragraph is to wait spiral shell Away from the helicla flute of equivalent gullet depth, for introducing material；The second segment is the helicla flute of not only varying pitch but also change groove depth, for changing thing Material spacing；Described 3rd section is the helicla flute that pitch is 0, and formation one is annular, is fed material in this pause；Described Four sections of helicla flutes for not only varying pitch change groove depth again, will be fed material and export to conveyer belt according to certain spacing.

It is preferably, described to be fed material and introduced and stably conveyed after a segment distance by special spiral rod with certain speed, Accelerate as pitch becomes larger, the pause at the helicla flute that pitch is 0, treat that special spiral rod rotates certain angle After degree, it is equal with conveying tape speed that feeding screw continues to be fed the linear velocity that material exports forward and export, entirely temporary transient Pause process is at a high speed and stable, nonmotile rigid shock.

It is preferably, described to be fed the solid material that material is equal in magnitude, spherical profile identical, ampuliform or can-like, The cross section of ampuliform or can-like material is circular, square, oval or polygon；The section space shape of two special spiral rods Cheng Kerong is fed the passage that material passes through, be fed the outer surface of material and the spiral groove face spatial conjugate of special spiral rod and when Carve in linear contact lay state, be fed material and compound motion axially and radially done along special spiral rod under helicla flute drive, protect The stability of exhibit material feed.

Preferably, during the compound motion, the acceleration change for being fed material is divided into constant speed section, becomes acceleration Section, etc. accelerating sections and change subtract acceleration section, and each intersegmental acceleration change adopts trigonometric function curve smoothing transition, avoiding plus The rigid shock that velocity jump brings.

Preferably, two special spiral rods are driven by two sets of identical driving means respectively；The driving means include The end of servomotor, decelerator, synchronous pulley and Timing Belt, the servomotor and special spiral rod is equipped with synchronous pulley, Timing Belt is configured on the synchronous pulley, the Timing Belt is used to connect the biography between servomotor and corresponding special spiral rod It is dynamic；The driving means also include motion controller and motor servo driver, and motion controller is according to material quantity and conveying Tape speed calculates the rotating speed needed for feeding screw, and the speed is exported to motor servo driver, motor servo driver control Servomotor rotation processed, completes the synchronous backward rotation of two special spiral rods.

Preferably, two special spiral rods are respectively by two sets of identical support devices；The support meanss include parallel In the support of conveyer belt, one end of support is provided with bearing, and the other end is provided with the guide rail bearing with locking mechanism part；Servo electricity Machine, decelerator are detachably mounted on bearing, and guide rail bearing is used to support the guide rail parallel with conveyer belt, and one end of guide rail sets There is guide rail base, guide rail base is used for stationary center bearing；When the locking mechanism part unclamps, top bearing and guide rail can be with one Rise and move horizontally along the direction of conveyer belt；Described special spiral rod one end is fixed on top bearing, and the other end is fixed on support On.

This utility model simple structure, dependable performance, using modularized design, compact conformation, low cost, in production process Noise is little and without rigid shock, and speed adjustment is convenient, and device assembling on a production line and adjusts very convenient.This is temporary When breaking device can be widely applied to the industries such as daily use chemicals, medicine, health, food, packaging, with coordinate complete labeling, cleaning, beat The high speed operation of the operations such as code, filling, fill.

Attendant advantages of the present utility model, purpose, and feature will be set forth in part in the description which follows, and will For those of ordinary skill in the art partly become obvious after research hereafter, or can be according to practice of the present utility model And know.The purpose of this utility model and further advantage can be by having in written explanation and its claims and accompanying drawing The structure that body is pointed out is realized and is obtained.

It will be appreciated by those skilled in the art that the objects and advantages that can be realized with this utility model are not limited to the above It is concrete described, and the above and other mesh that this utility model can be realized will be more clearly understood according to described further below 's.

Description of the drawings

A kind of structural representations of the Fig. 1 for this utility model device；

Fig. 2 is fed material and special spiral rod direct of travel and direction of rotation schematic diagram for this utility model device；

Fig. 3 is the acceleration change curve for being fed material during compound motion；

Fig. 4 is that the friendship section piece of the spiral groove face for being fed material and special spiral rod produces schematic diagram；

In figure：1- conveyer belts；2- feeding screws；The top bearings of 3-；4- guide rail bases；5- locking mechanism parts；6- guide rails Seat；7- guide rails；8- servomotors；9- decelerators；10- bearings；11- Timing Belts；12- supports.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is used to illustrate this utility model, but is not limited to scope of the present utility model.

Embodiment 1：

As shown in Figures 1 to 4, be a kind of embodiment of the present utility model structure, it is a kind of based on the continuous of special spiral rod Material pause device in course of conveying, including conveyer belt 1, feeding screw 2, driving means and support meanss, drive dress Put for driving feeding screw 2, feeding screw 2 and driving means to be detachably arranged in support meanss；The conveyer belt 1 is used Material, the feeding screw 2 are fed in continuous conveying shape identical rigid/semi-rigid (metal shell/non-metal shell) It is two special spiral rods positioned at 1 upper end both sides of conveyer belt and parallel with conveyer belt, two special spiral rods are in opposite direction synchronous to be revolved Turn, as shown in Fig. 2 giving the direction of rotation of special spiral rod and being fed the direction of advance of material.The shape identical quilt Feed material is from beginning to end to form a line from two special spiral rod one end inputs, with the change of the pitch and groove depth of special spiral rod Each is fed material after ad-hoc location pause certain hour, exports to conveyer belt from the other end of two special spiral rods On.

The hand of spiral of two special spiral rods is contrary.Special spiral rod includes first paragraph, second segment, the 3rd section and the 4th section, Helicla flute of the first paragraph for uniform pitch equivalent gullet depth, for introducing material；The second segment be not only varying pitch but also become groove depth Helicla flute, for change storeroom away from；Described 3rd section is the helicla flute that pitch is 0, and formation one is annular, is fed material and exists This pause；The described 4th section helicla flute for not only varying pitch change groove depth again, it is defeated according to certain spacing by material is fed Go out to conveyer belt 1.

It is fed material and is introduced and stably conveyed after a segment distance by special spiral rod with certain speed, with pitch gradually Become big and accelerate, the pause at the helicla flute that pitch is 0, after special spiral rod rotates to an angle, feed spiral shell It is equal with 1 speed of conveyer belt that bar continues to be fed the linear velocity that material exports forward and export, whole pause process height Speed and stable, nonmotile rigid shock.

It is fed the solid material that material is equal in magnitude, spherical profile identical, ampuliform or can-like, ampuliform or can-like thing The cross section of material is circular, square, oval or polygon, and in the present embodiment, the cross section for being fed material is circular.Two The section space of special spiral rod forms and can hold the passage for being fed that material passes through, and is fed the outer surface and special spiral rod of material Spiral groove face spatial conjugate and moment are in linear contact lay state, are fed material under helicla flute drive along special spiral rod axial direction Compound motion is done with radial direction, it is ensured that the stability of material feed.During feed, only simultaneously ensure screw spiral groove face with Be fed tightly engaging for material curved surface, i.e. spiral groove face shape it is strict with the two friendship cross sectional shape Changing Pattern become Change, the stability of feed can just be guaranteed.The two relative motion reflects in geometry, as shown in figure 4, using ∑ as imagination The generatrix of material is fed, the spiral groove face ∑ with screw rod₁Technique engagement is done, the two hands over section ∑ c to do simply along screw axis Or compound motion, while screw rod is rotated with angular velocity omega around the axis of itself, the spiral groove face ∑ of screw rod₁As friendship section ∑ c Envelope in relative motion is transformed into.

During compound motion, be fed material acceleration change be divided into constant speed section, become accelerating sections, etc. accelerating sections Subtract acceleration section with change, and each intersegmental acceleration change adopts trigonometric function curve smoothing transition, to avoid sudden change of acceleration band The rigid shock for coming.For the seriality and gentle property of material movement speed change are fed during realizing feed, it is to avoid inertia Impact, it is ensured that feed motion high speed and stability, the utility model proposes stable state feed varying accelerated motion, that is, supplied In sending material traveling process, each section of acceleration change adopts trigonometric function transition, as shown in Figure 3.This is also the spiral of special spiral rod Line version.The helical wire form of special spiral rod is the key factor for concerning spiral flute profile and material supplied stability.Its Calculation is as follows：

T- cycles (s) in formula, its value were determined by each section of total time；t₂- the time (s)；a_m- uniform acceleration section acceleration (mm/s²)；c_i--- integral constant, i=1,2,3,4.The make of the helix of above-mentioned I, II, III and IV can be according to reality Situation, selected part or whole.

The structure of described special spiral rod can pass through to build helix mathematical model, structure according to the shape for being fed material The mode for building helicla flute mathematical model is realized.Wherein：The structure helix mathematical model is as shown in Figure 3 and discussed above.

The structure helicla flute mathematical model：The whole motion of screw rod feed synthesizes by two simple motions, i.e. screw rod Rotary motion and it is fed the movement or other kinds of motion of material.The spiral groove face essence for building screw rod is exactly to investigate quilt Feed material and the relative position relation of screw rod, are fed the forms of motion of material it has been determined that by two in this utility model Or the coordinate transform between multiple coordinate systems to solve and can be fed the spiral fluted curved surface that material curved surface is meshed Equation.

Build helicla flute mathematical model in it needs to be determined that：Spiral groove face shaping geometrical principle, the bag of Single parametric surface family Network face equation solution, based on the spiral groove face mathematical modeling of one-parameter Enveloping theory, hand over section piece race equation solution, mesh equation The work of the aspects such as solution, helicla flute surface equation；These can be obtained from building to set up in helicla flute mathematical model.

Two special spiral rods are driven by two sets of identical driving means respectively；The driving means include servomotor 8, subtract The end of fast device 9, synchronous pulley and Timing Belt 11, the servomotor 8 and special spiral rod is equipped with synchronous pulley, the synchronization Timing Belt 11 is configured on belt wheel, the Timing Belt 11 is used to connect the transmission between servomotor 8 and corresponding special spiral rod.Institute Stating driving means also includes motion controller and motor servo driver, and motion controller is according to material quantity and conveying tape speed The rotating speed needed for feeding screw is calculated, and the speed is exported to motor servo driver, motor servo driver control servo Motor rotates, and completes the synchronous backward rotation of two special spiral rods.When material quantity changes, motion controller can follow material The rotating speed changed to adjust feeding screw of quantity.Device also includes that grating sensor is used to monitoring and feeding back screw rod rotation feelings Condition, it is ensured that two special spiral rod speed syncs and oppositely oriented, keeps relative phase constant.

Two special spiral rods can also be divided into active special spiral rod and driven special spiral rod, and active special spiral rod passes through synchronous gear Wheel drives driven special spiral rod synchronous axial system, active special spiral rod to be driven by driving means, but in order to reduce biography in the present embodiment Dynamic element, is easy to the adjustment of screw rod initial phase and reduces the device space, using two special spiral rods respectively by two sets of identicals The scheme that driving means drive.

Two special spiral rods are respectively by two sets of identical support devices；The support meanss are included parallel to conveyer belt Support 12, one end of support 12 is provided with bearing 10, and the other end is provided with the guide rail bearing 6 with locking mechanism part；Servomotor 8th, decelerator 9 is detachably mounted on bearing 10, and guide rail bearing 6 is used to support the guide rail 7 parallel with conveyer belt, guide rail 7 One end is provided with guide rail base 4, and guide rail base is used for stationary center bearing 3；When the locking mechanism part 5 unclamps, 3 He of top bearing Guide rail 7 can be together along conveyer belt 1 direction move horizontally；Described special spiral rod one end is fixed on top bearing 3, another End is fixed over the mount 10.The locking mechanism part 5 can be elbow folder.

Embodiment 2：

A kind of material pause device in continuous conveying process based on special spiral rod, described device can also include Material guiding device, is made up of clamping plate and securing member, and the securing member is fixed in support meanss；Material guiding device is used for will It is fed material and accurately sends into feeding screw, plays a part of positioning.

The various embodiments described above can some changes in addition under without departing from protection domain of the present utility model, therefore the explanation of the above Structure shown in included and accompanying drawing should be regarded as exemplary, and be not used to limit the protection model applied for a patent of this utility model Enclose.

Claims

1. A temporary stop device for materials in the continuous conveying process based on a special-shaped screw, including a conveyor belt, a feeding screw, a driving device and a supporting device, the driving device is used to drive the feeding screw, and the feeding screw and the driving device are detachable Installed on the supporting device; it is characterized in that the conveyor belt is used to continuously convey the supplied materials with the same shape, and the supply screw is two special-shaped screws located on both sides of the upper end of the conveyor belt and parallel to the conveyor belt. The root special-shaped screw rotates synchronously in opposite directions, and the fed materials of the same shape are connected head to tail and are input from one end of the two special-shaped screws. With the change of the pitch and groove depth of the special-shaped screw, each fed material After the position temporarily stops for a certain period of time, it is output to the conveyor belt from the other end of the two special-shaped screws.

2. The device according to claim 1, wherein the special-shaped screw comprises a first section, a second section, a third section and a fourth section, and the first section is a helical groove with equal pitch and equal groove depth , used to introduce materials; the second section is a spiral groove with variable pitch and groove depth, used to change the distance between materials; the third section is a spiral groove with a pitch of 0, forming a ring, and the supplied material Pause here temporarily; the fourth section is a helical groove with variable pitch and variable groove depth, which outputs the supplied materials to the conveyor belt at a certain interval.

3. The device according to claim 2, characterized in that, after the material to be fed is introduced by the special-shaped screw at a certain speed and stably conveyed for a certain distance, it accelerates as the pitch gradually increases. The spiral groove of 0 stops temporarily. After the special-shaped screw rotates at a certain angle, the feeding screw continues to output the supplied material forward and the output linear speed is equal to the speed of the conveyor belt. The whole temporary stop process is high-speed and stable, without movement Rigid impact.

4. The device according to claim 1, characterized in that, the materials to be fed are spherical, bottle-shaped or can-shaped solid materials with the same size and shape, and the cross-section of the bottle-shaped or can-shaped materials is a circle shape, square, ellipse or polygon; the cross-sectional gap of the two special-shaped screws forms a channel that can accommodate the material to be fed through, and the outer surface of the material to be fed is meshed with the spiral groove surface of the special-shaped screw and is in line contact at all times In this state, the material to be fed is driven by the spiral groove to make compound movements along the axial and radial directions of the special-shaped screw to ensure the stability of material feeding.

5. The device according to claim 4, characterized in that, in the process of the compound movement, the acceleration change of the supplied material is divided into a constant velocity section, a variable acceleration section, a constant acceleration section and a variable deceleration section, And the acceleration change between each section adopts the trigonometric function curve to smoothly transition to avoid the rigid impact caused by sudden acceleration changes.

6. The device according to claim 1, wherein the two special-shaped screws are respectively driven by two sets of identical driving devices; the driving device includes a servo motor, a reducer, a synchronous pulley and a synchronous belt, so The ends of the servo motor and the special-shaped screw are all provided with a synchronous pulley, and a synchronous belt is arranged on the synchronous pulley, and the synchronous belt is used to connect the transmission between the servo motor and the corresponding special-shaped screw; the drive device also It includes a motion controller and a servo motor driver. The motion controller calculates the required speed of the feeding screw according to the amount of material and the speed of the conveyor belt, and outputs the speed to the servo motor driver. The servo motor driver controls the rotation of the servo motor to complete two special-shaped Synchronized reverse rotation of the screws.

7. device according to claim 6, is characterized in that, two special-shaped screw rods are respectively supported by two sets of identical support devices; Described support device comprises a support parallel to the conveyor belt, and one end of the support is provided with a bearing, and the other One end is equipped with a guide rail support with a locking structure; the servo motor and reducer are detachably fixed on the support, and the guide rail support is used to support the guide rail parallel to the conveyor belt. One end of the guide rail is provided with a guide rail base. The guide rail base is used to fix the top support; when the locking structure is released, the top support and the guide rail can move horizontally along the direction of the conveyor belt; one end of the special-shaped screw is fixed on the top support, and the other end fixed on the stand.