CN203185597U - Injection moulding servo automatic thread twisting system - Google Patents
Injection moulding servo automatic thread twisting system Download PDFInfo
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- CN203185597U CN203185597U CN 201320191075 CN201320191075U CN203185597U CN 203185597 U CN203185597 U CN 203185597U CN 201320191075 CN201320191075 CN 201320191075 CN 201320191075 U CN201320191075 U CN 201320191075U CN 203185597 U CN203185597 U CN 203185597U
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- strand tooth
- injection
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- index dial
- thread
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Abstract
The utility model discloses an injection moulding servo automatic thread twisting system which overcomes the shortcomings that the existing thread twisting mould is not suitable for a multi-cavity mould, a precise positioning adjustment mechanism is unavailable and the repeatability is low. The injection moulding servo automatic thread twisting system disclosed by the utility model realizes synchronous thread twisting of multiple cavities, precise positioning adjustment and high repeatability, and comprises an injection mould, wherein the injection mould is provided with multiple screw thread components forming a screw thread-type core; a control end of the injection mould is connected with an interface of a PLC (programmable logic controller), and another interface of the PLC is connected with a servo device; an output end of the servo device is connected with a control end of a mechanical device; an input interface of the PLC is connected with a human-machine interface; the mechanical device comprises a thread twisting device arranged on a mould movable template; the thread twisting device comprises a thread twisting motor, a thread twisting transmission mechanism and a positioning mechanism; and the screw thread component is connected with the thread twisting motor through the thread twisting transmission mechanism. The system disclosed by the utility model has the advantages of precise adjustment and positioning, synchronous thread twisting of multiple cavities, high repeatability of the servo device, automatic control and uniform thread start position of the screw threads of different batches and different cavities.
Description
Technical field
The utility model belongs to the injection mold technical field, is specifically related to the servo automatic strand tooth system of a kind of injection mo(u)lding.
Background technology
For the accurate thread in the precise injection molding spare, the micromirror headstock screw thread in the miniature precision assembly of contemporary optics for example, not only dimensional accuracy and form accuracy there is high specification requirement, and for the homogeneity of part, for example also there is extremely strict specification requirement the tooth position of rising of screw thread, but the micromirror headstock screw thread of prior art, owing to be subjected to mould structure and processing technology, the restriction of annex corollary equipment etc., the screw initial thread tooth of lens mount is in the multi-imprssion mould tool is produced, it is different that the screw thread of each die cavity plays the tooth position, also can't be the same even the product screw thread of together individual die cavity plays the tooth angle, yet this lens mount screw thread and camera lens are to be selected into cooperation automatically, because be that manipulator is controlled automatically, it must be identical that each cooperation position requires again with the number of turns, therefore the screw initial thread tooth position of practical set product is different, can cause the moment of torsion heterogeneity of automatic matching thread, directly influences product quality even causes product rejection.
For example Chinese patent application numbers 201020669087.9, name is called the utility model patent of " a kind of strand tooth mould ", a kind of strand tooth mould is disclosed, comprise the cover half core, be provided with moving-mould-core at cover half core side, cover half mold insert and dynamic model mold insert are located at respectively on cover half core and the moving-mould-core, side at moving-mould-core is provided with first fixed block successively, gear and second fixed block, the screw thread mold insert is arranged in first fixed block, in gear and second fixed block, the end of screw thread mold insert is located in the moving-mould-core by inserts, between screw thread mold insert and first fixed block and second fixed block, be respectively equipped with first ball bearing guide bushing and second ball bearing guide bushing, gear is meshed with power transmission shaft, driving sleeve is outside transmission device, and transmission device links to each other with the output shaft of motor by key, and motor is controlled by the PMC control panel.There are following several point defects in this strand tooth mould, and first it twist tooth to single screw thread, therefore can only be applicable to the single screw thread of single die cavity, can't adapt to a multi-cavity mold mould structure of production in enormous quantities; Second it lack the precision positioning guiding mechanism, especially can not carry out the artificial fine adjustment of initial position; Thirdly its multiplicity can not guarantee, the screw thread difference of different batches is big, and especially to play the tooth position difference big for screw thread.
Summary of the invention
The utility model technical issues that need to address are, overcome that the strand tooth mould of prior art exists be unsuitable for the multi-imprssion mould tool, lack precision positioning guiding mechanism and multiplicity difference defective, provide the many types of chamber of a kind of energy twist simultaneously tooth, can the precision positioning adjustment and the high injection mold of multiplicity twist tooth system automatically.
The purpose of this utility model is achieved by following technical proposals: the servo automatic strand tooth system of a kind of injection mo(u)lding, comprise injection mold, injection mold is provided with several rotating screw members that constitutes thread core, the control end of injection mold is connected with the interface of PLC, another interface of PLC is connected with servomechanism installation, the output of servomechanism installation is connected with the control end of mechanical device, and the input interface of PLC is connected with man-machine interface; Mechanical device comprises the strand tooth device that is located on the injection mold moving platen, and strand tooth device comprises strand tooth motor, strand tooth transmission mechanism and detent mechanism, and screw member is connected with strand tooth motor by strand tooth transmission mechanism.
As preferably, strand tooth system flow process is as follows: (1) operator is at outturn sample and product design parameter, by the initial position of detent mechanism debugging strand tooth motor, plays the tooth status requirement to guarantee the screw thread that screw member meets workpiece; (2) operator arranges technological parameter and inputs to PLC by man-machine interface; (3) PLC control injection machine action and from injection machine return state information, injection machine injection mo(u)lding, injection mold die sinking; (4) PLC is by servomechanism installation control strand tooth device action, servomechanism installation feeds back to PLC with the multidate information of mechanical device, the action of strand tooth device comprises that strand tooth motor rotates the corner of setting accurately, and strand tooth transmission mechanism drives all screw members and rotates the demoulding simultaneously; (5) take out the injection moulding workpiece; (6) PLC resets by servomechanism installation control strand tooth device.
Strand tooth device and injection mold are connected with PLC by servomechanism installation, PLC is connected with injection machine control device and man-machine interface respectively by on-line interface, the sensor feedback status information that is provided with in the checkout gear that the cooperation injection machine is provided with and the transmission mechanism, realize the complete machine Based Intelligent Control, operating personnel only need before production, accent machine in early stage well corresponding position and data are produced in injection moulding, after relative parameters setting, just can realize full-automatic accurate production, comprise servo automatic hinge tooth.When die sinking or hinge tooth operation go wrong, feed back to the signal of PLC by servomechanism installation, PLC handles through signal and feeds back to injection machine again, thereby makes injection machine and manipulator make corresponding processing.PLC has that reliability height, antijamming capability are strong, comprehensive, perfect in shape and function, cost performance height, applicability are strong, technology maturation, system development cycle are short, production technology is changed adaptability is strong, device is easy to get, and network interface is arranged, with the advantage of the online exchange message of PC.
As preferably, described detent mechanism comprises index dial and pointer, and index dial is fixedlyed connected with moving platen and its axis and strand tooth motor shaft coaxial line, pointer with twist the tooth motor shaft and fixedly connected, the periphery of index dial is provided with graduation mark.
As preferably, described detent mechanism comprises index dial and the vernier index dial corresponding with it, index dial is fixedlyed connected with strand tooth motor shaft coaxial line and with moving platen, the vernier index dial is fixedlyed connected with strand tooth motor shaft, the periphery of index dial is provided with graduation mark, the periphery of vernier index dial is provided with the difference graduation mark, and the scale division value of difference graduation mark is than the little certain ratio value of scale division value of the graduation mark of index dial periphery, and this ratio value is 1/10,1/20,1/30,1/40 or 1/50.
As preferably, twist the tooth transmission mechanism and constituted by drive sprocket, chain, several driven sprockets identical with the screw member number of packages, drive sprocket is fixedlyed connected with strand tooth motor shaft, and driven sprocket is connected to the rear end of each screw member.
As preferably, be connected the driven sprocket of each screw member rear end, its structure is identical, and the chain slack list between the adjacent driven sprocket all is provided with tightener sprocket.
As preferably, described detent mechanism comprises locking device.
As preferably, the end of driven sprocket is connected with moving platen with sleeve by bearing, and the rear end of screw member is connected by spline with the axis hole of driven sprocket, and the moving platen position corresponding with the screw member rear end is provided with and holds the axis hole that screw member moves along axis.
As preferably, be positioned at the manipulator that the mould top position is provided with automatic part picking on the injection machine, the action of manipulator is controlled by PLC.
As preferably, the position in the middle of screw member approaches is provided with by shoulder, and driven sprocket is fixedly connected on the front side by shoulder, and the back segment of screw member is the shaft part that leads, and the axis hole on lead shaft part and the moving platen is slidingly matched.
The servomechanism installation of the servo automatic strand tooth system of injection mo(u)lding is closed-loop system, by the PLC Based Intelligent Control, control precision injection molding strand tooth reaches the uniformity that plays the tooth angle of miniature screw thread, the tooth angle of rising that camera lens is cooperated with the lens mount thread obtains unified fit angle, the process that camera lens is focused accurately reaches the focal position of setting, to reach the quality requirement of high pixel, increase substantially production efficiency simultaneously.Product screw thread interchangeability height reaches the specification requirement of threaded engagement torque range control within 5-30 gf.cm.
The beneficial effects of the utility model are:
1, can accurately adjust the location, can carry out the artificial fine adjustment of initial position, adjust precision and reach 0.02mm;
2, can twist tooth simultaneously, the output height in many types of chamber;
3, there is servomechanism installation to make screw thread play placed repetitive positioning accuracy and reaches 0.002mm～0.005mm;
4, it is all unified that control automatically, all over products screw thread of assurance different batches and different die cavities play the tooth position;
5, mould divides mould and the screw member can be synchronously or closely be connected the demoulding, saves man-hour, raises the efficiency, and reduces the amount of labour.
Description of drawings
Fig. 1 is the system principle block diagram of a kind of embodiment of the utility model;
Fig. 2 is the structural representation of embodiment;
Fig. 3 is a kind of strand tooth transmission mechanism schematic diagram;
Fig. 4 is index dial and the vernier index dial calibration schematic diagram of another kind of detent mechanism.
Among the figure, injection mold 1; Moving platen 11; PLC2; Servomechanism installation 3; Mechanical device 4; Strand tooth device 41; Strand tooth transmission mechanism 42; Drive sprocket 421; Driven sprocket 422; Chain 423; Tightener sprocket 424; Detent mechanism 43; Index dial 431; Graduation mark 432; Vernier index dial 433; Difference graduation mark 434; Strand tooth motor 44; Man-machine interface 5; Injection machine 6; Manipulator 7.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiments the utility model is further described.
Embodiment 1: as Fig. 1～shown in Figure 2, the servo automatic strand tooth system of a kind of injection mo(u)lding, comprise injection mold 1, injection mold 1 is provided with 5 die cavities, all be furnished with the rotating screw member that constitutes thread core in each die cavity, the control end of injection mold 1 is connected with the interface of PLC2, and another interface of PLC2 is connected with servomechanism installation 3, the output of servomechanism installation 3 is connected with the control end of mechanical device 4, and the input interface of PLC2 is connected with man-machine interface 5; Mechanical device 4 comprises the strand tooth device 41 that is located on injection mold 1 moving platen 11, strand tooth device 41 comprises strand tooth motor 44, strand tooth transmission mechanism 42 and detent mechanism 43, strand tooth motor 44 is servomotor, and 5 screw members are connected with strand tooth motor by strand tooth transmission mechanism; Strand tooth transmission mechanism is by drive sprocket 421,5 driven sprockets 422 and chain 423 constitute, drive sprocket 421 is fixedlyed connected with strand tooth motor shaft, 5 driven sprockets 422 are connected to the rear end of each screw member, the rear end of screw member is provided with 6 tartar keys, screw member is by the splined hole sliding connection in the middle of spline and the driven sprocket 422, the end of driven sprocket 422 is connected with moving platen 11 with sleeve by bearing, the rear end of screw member is connected by spline with the axis hole of driven sprocket 422, moving platen 11 position corresponding with the screw member rear end is provided with and holds the axis hole that screw member moves along axis, the advantage of this structure be can make the demoulding of screw member elder generation again dynamic model divide mould, the screw member demoulding or the demoulding on one side divide mould to save time again on one side can certainly first dynamic model divide mould; The advantage that the end of driven sprocket 422 is connected with moving platen 11 by bearing and sleeve is to allow the screw member off-load, and the lateral pull of chain can not be delivered on the screw member; Injection machine is provided with the manipulator 7 of automatic part picking, and the action of manipulator 7 is controlled by PLC2.
The PLC control flow is as follows: (1) operator is at outturn sample and product design parameter, by the initial position of detent mechanism 43 debugging strand tooth motors, plays the tooth status requirement to guarantee the screw thread that screw member meets workpiece; (2) operator arranges technological parameter and inputs to PLC2 by man-machine interface 5; (3) PLC2 control injection machine 6 actions and from injection machine 6 return state information finish injection mold 1 die sinking to injection mo(u)lding and typing; (4) PLC2 is by 41 actions of servomechanism installation 3 control strand tooth devices, servomechanism installation 3 feeds back to PLC2 with the multidate information of mechanical device 4, the action of strand tooth device 41 comprises that strand tooth motor rotates the corner of setting accurately, and strand tooth transmission mechanism drives all screw members and rotates the demoulding simultaneously; (5) manipulator 7 takes out the injection moulding workpiece; (6) PLC2 resets by servomechanism installation 3 control strand tooth devices 41.
Be connected the driven sprocket 422 of each screw member rear end, its structure is identical, and chain 423 slack lists between the adjacent driven sprocket all are provided with tightener sprocket 424, as shown in Figure 3.
The servo automatic strand tooth system of injection mo(u)lding passes through Based Intelligent Control, control precision injection molding strand tooth reaches the uniformity that plays the tooth angle of miniature screw thread, the tooth angle of rising that camera lens is cooperated with the lens mount thread obtains unified fit angle, the process that camera lens is focused accurately reaches the focal position of setting, to reach the quality requirement of high pixel, increase substantially production efficiency simultaneously.Realize the synchronous automatic demoulding of whole screw members by strand tooth device, need not manually to pursue the part turn demoulding, also need not to arrange the demoulding respectively of many covers strand tooth mechanisms, save man-hour in a large number, raise the efficiency the amount of lightening one's labor.
Embodiment 2: the position in the middle of screw member approaches is provided with by shoulder, driven sprocket is fixedly connected on the front side by shoulder, the back segment of screw member is the guiding shaft part, axis hole on guiding shaft part and the moving platen is slidingly matched, 5 driven sprockets are fixedlyed connected with 5 screw members respectively, when dynamic model divides mould to certain distance, PLC is by servomechanism installation control strand tooth device action, servomotor drives screw member by chain sprocket mechanism and rotates, owing to be subjected to the propulsive thrust effect of workpiece negative thread, screw member is while rotating mobile withdrawing from backward, the speeds match that the speed that screw member moves backward and moving platen retreat, namely screw member rotates one changes, and the distance that moving platen retreats equals a pitch of screw member just, this strand tooth scheme more can be saved man-hour, reduces cost.All the other structures and technological process are identical with embodiment 1.
Embodiment 3: detent mechanism comprises index dial 431 and the vernier index dial 433 corresponding with it, index dial 431 is fixedlyed connected with strand tooth motor shaft coaxial line and with moving platen 11, vernier index dial 433 is fixedlyed connected with strand tooth motor shaft, the periphery of index dial 431 is provided with graduation mark 432, the periphery of vernier index dial 433 is provided with difference graduation mark 434, the scale division value of difference graduation mark 433 is than the little certain ratio value of scale division value of the graduation mark 432 of index dial 431 peripheries, this ratio value is 1/50, this difference calibration can make the adjustment precision reach 0.02mm, all the other structures and technological process are with embodiment 1, as shown in Figure 4.
The servo automatic strand tooth system of the utility model injection mo(u)lding has can accurately adjust the location, can twist tooth simultaneously in many types of chamber, and servomechanism installation repeatable accuracy height is arranged; Automatically control, the all over products screw thread that guarantees different batches and different die cavities plays all unified advantages of tooth position, if those skilled in the art does simple the modification or replacement to the foregoing invention content, such change can not think to break away from scope of the present utility model, and all will be included within the scope of claim of the present utility model the apparent modification of those skilled in the art like this.
Claims (9)
1. servo automatic strand tooth system of injection mo(u)lding, comprise injection mold, injection mold is provided with the rotating screw member that several front ends constitute thread core, it is characterized in that, the control end of injection mold is connected with the interface of PLC, another interface of PLC is connected with servomechanism installation, and the output of servomechanism installation is connected with the control end of mechanical device, and the input interface of PLC is connected with man-machine interface; Mechanical device comprises the strand tooth device that is located on the injection mold moving platen, and strand tooth device comprises strand tooth motor, strand tooth transmission mechanism and detent mechanism, and screw member is connected with strand tooth motor by strand tooth transmission mechanism.
2. the servo automatic strand tooth system of injection mo(u)lding according to claim 1, it is characterized in that, described detent mechanism comprises index dial and pointer, index dial is fixedlyed connected with moving platen and its axis and strand tooth motor shaft coaxial line, pointer is fixedlyed connected with strand tooth motor shaft, and the periphery of index dial is provided with graduation mark.
3. the servo automatic strand tooth system of injection mo(u)lding according to claim 1, it is characterized in that, described detent mechanism comprises index dial and the vernier index dial corresponding with it, index dial is fixedlyed connected with strand tooth motor shaft coaxial line and with moving platen, the vernier index dial is fixedlyed connected with strand tooth motor shaft, the periphery of index dial is provided with graduation mark, the periphery of vernier index dial is provided with the difference graduation mark, the scale division value of difference graduation mark is than the little certain ratio value of scale division value of the graduation mark of index dial periphery, and this ratio value is 1/10,1/20,1/30,1/40 or 1/50.
4. according to claim 1, the servo automatic strand tooth system of 2 or 3 described injection mo(u)ldings, it is characterized in that, strand tooth transmission mechanism is made of drive sprocket, chain, several driven sprockets identical with the screw member number of packages, drive sprocket is fixedlyed connected with strand tooth motor shaft, and driven sprocket is connected to the rear end of each screw member.
5. the servo automatic strand tooth system of injection mo(u)lding according to claim 4 is characterized in that be connected the driven sprocket of each screw member rear end, its structure is identical, and the chain slack list between the adjacent driven sprocket all is provided with tightener sprocket.
6. the servo automatic strand tooth system of injection mo(u)lding according to claim 4 is characterized in that described detent mechanism comprises locking device.
7. the servo automatic strand tooth system of injection mo(u)lding according to claim 6, it is characterized in that, the end of driven sprocket is connected with moving platen with sleeve by bearing, the rear end of screw member is connected by spline with the axis hole of driven sprocket, and the moving platen position corresponding with the screw member rear end is provided with and holds the axis hole that screw member moves along axis.
8. according to claim 1 or the servo automatic strand tooth system of 2 or 3 described injection mo(u)ldings, it is characterized in that be positioned at the manipulator that the mould top position is provided with automatic part picking on the injection machine, the action of manipulator is controlled by PLC.
9. the servo automatic strand tooth system of injection mo(u)lding according to claim 4, it is characterized in that the position in the middle of screw member approaches is provided with by shoulder, driven sprocket is fixedly connected on the front side by shoulder, the back segment of screw member is the guiding shaft part, and the axis hole on guiding shaft part and the moving platen is slidingly matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320191075 CN203185597U (en) | 2013-04-17 | 2013-04-17 | Injection moulding servo automatic thread twisting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320191075 CN203185597U (en) | 2013-04-17 | 2013-04-17 | Injection moulding servo automatic thread twisting system |
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| Publication Number | Publication Date |
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| CN203185597U true CN203185597U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320191075 Withdrawn - After Issue CN203185597U (en) | 2013-04-17 | 2013-04-17 | Injection moulding servo automatic thread twisting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252873A (en) * | 2013-04-17 | 2013-08-21 | 宁波贝隆精密模塑有限公司 | Injection-molding servo automatic tooth-twisting system |
-
2013
- 2013-04-17 CN CN 201320191075 patent/CN203185597U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252873A (en) * | 2013-04-17 | 2013-08-21 | 宁波贝隆精密模塑有限公司 | Injection-molding servo automatic tooth-twisting system |
| CN103252873B (en) * | 2013-04-17 | 2015-05-20 | 宁波贝隆精密模塑有限公司 | Injection-molding servo automatic tooth-twisting system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130911 Effective date of abandoning: 20150520 |
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| RGAV | Abandon patent right to avoid regrant |