TWI382913B - Ten-link type double-toggle mold clamping mechanisms - Google Patents

Description

Ten-link type double toggle joint clamping mechanism

The invention relates to an innovative structure of a connecting rod type toggle clamping mechanism, in particular to an effect that can be applied to an injection molding machine and a die casting machine to achieve the function of mold locking, and has a ten-link type double toggle joint. The characteristics of the organization.

The injection molding machine and the Die casting machine are common industrial equipments, which are used for the mass production of various plastic products for the people's livelihood and industrial products in cooperation with the molding die (Mold). When an injection molding machine is used for injection molding of a plastic melt, the plastic melt generates a large injection pressure on the mold. Similarly, using a die casting machine for molten metal During pressure casting, a large mold pressure is also applied to the mold during the infusion of the molten metal. Therefore, both the injection molding machine and the die casting machine must provide sufficient clamping force by the Mold clamping unit to balance these large mold flow pressures on the mold. The Linkage type toggle mechanism creates a very large mechanical advantage when the Toggle configuration of the part of the machine reaches its limit position. Therefore, the clamping unit of the injection molding machine and the die casting machine often adopts a connecting rod type toggle clamping mechanism to generate sufficient clamping force, thereby balancing the large mold flow pressure on the mold, so as to withstand the internal mold flow pressure. The mold still achieves a fully closed effect.

One of the conventional link type toggle clamping mechanisms used today is the so-called Nine-link type double-toggle mold clamping mechanism, as employed in U.S. Patent No. 1880380. . 1 to 5 are respectively a first side perspective complete perspective view of the double toggle section clamping mechanism, a first side sectional perspective view, a second side full perspective view, a second side sectional perspective view, and A side perspective view of the link set mainly includes a base body 1, a slide template 2, and a link set 3. The base body 1 mainly includes a fixed bottom plate 11, a front fixed template 12, a rear fixed substrate 13, a plurality of guide posts 14, and a hydraulic cylinder 15; wherein the front fixed template 12 and the rear fixed substrate 13 are The plurality of guide posts 14 are respectively fixed to the front fixed template 12 and the rear fixed substrate 13 in a mutually parallel arrangement, and the hydraulic cylinders are respectively fixed at a position on a plane of the fixed bottom plate 11 . The 15 series is fixed at an appropriate position of the rear fixed substrate 13. The sliding template 2 is constrained by the plurality of guiding columns 14 to have a relative translation with the base body 1 in a direction parallel to the plurality of guiding columns 14. The two opposite planes of the front fixed template 12 and the sliding template 2 are respectively used for mounting the male mold and the female mold, and the front fixed template 12 has an inlet 121 for injecting plastic melt or molten metal. In the mold when closed. The link set 3 mainly includes an active translation member 31, a second transmission member 32, a third transmission member 33, a fourth transmission member 34, a fifth transmission member 35, a sixth transmission member 36, and a The seventh transmission member 37 is configured to be fixed by a piston 311, a piston rod 312 and a first transmission member 313, and the piston 311 is restrained by the hydraulic cylinder 15 The active translation member 31 and the base body 1 have a relative translation in a direction parallel to the plurality of guide columns 14; the two ends of the first transmission member 313 in the active translation member 31 are respectively associated with the second transmission member One end of 32 and one end of the fifth transmission member 35 are pivotally connected; the other end of the second transmission member 32 is pivotally connected to one end of the third transmission member 33; the other ends of the third transmission member 33 are Suitable for one of the rear fixed substrates 13 When the position and one end of the fourth transmission member 34 are pivotally connected; the other end of the fourth transmission member 34 is pivotally connected to an appropriate position of the sliding template 2; the other end of the fifth transmission member 35 is The other end of the sixth transmission member 36 is pivotally connected to the other end of the rear transmission substrate 13 and one end of the seventh transmission member 37; The other end of the seventh transmission member 37 is pivotally connected to another suitable position of the sliding template 2; all the pivotal central axes between the above components are theoretically parallel to each other and simultaneously with the sliding template The translational direction of 2 is perpendicular, and all of the pivotal central axes between the elements described above are theoretically perpendicular to the translational direction of the active translational member 31. Thereby, the base body 1, the sliding template 2, the active translation member 31, the second transmission member 32, the third transmission member 33, the fourth transmission member 34, the fifth transmission member 35, the The nine core members, such as the sixth transmission member 36 and the seventh transmission member 37, pass through ten revolute joints (ie, the pivotal joint between the components described above) and two sliding joints (Prismatic joint or Sliding joint) (ie, the relative translation of the sliding template 2 and the base body 1 and the relative translation of the active translation member 31 and the base body 1) are interconnected and have a relative motion relationship, thereby forming a so-called nine Link type double toggle section clamping mechanism. The sixth figure shows the operation of the double-claw section clamping mechanism. The three small figures (a), (b) and (c) show that the sliding template 2 is at the rear limit position. , the intermediate process position, the state of the front limit position; when the sliding template 2 is at its front limit position, the nine-link type clamping mechanism forms a so-called double toggle configuration to generate a very large mechanical advantage, and A clamping force is provided to allow the mold to be fully closed. As shown in the small figure (c) of the sixth figure, a toggle configuration is generated at the pivot center A of the rear fixed substrate 13 and the third transmission member 33, the third transmission member 33 and the fourth transmission. When the pivoting center B of the member 34 and the pivoting center C of the sliding member 2 and the pivoting center C of the sliding template 2 are theoretically in a collinear geometric relationship, another toggle configuration is generated in the rear fixing. a pivoting center D of the substrate 13 and the sixth transmission member 36, a pivoting center E of the sixth transmission member 36 and the seventh transmission member 37, and a pivoting center F of the seventh transmission member 37 and the sliding template 2 When the three are theoretically in a collinear geometric relationship, and the two toggle configurations are theoretically generated at the same time, thereby achieving the effect of the double toggle joint clamping mechanism. The Republic of China Patent Gazette No. 441491, the Republic of China Patent Gazette No. 454686, the Republic of China Patent Gazette No. 542097, the Republic of China Patent Gazette No. I222403, the Republic of China Patent Gazette No. I274653, and the Republic of China Patent Gazette No. I303205 are In the basic structure of the nine-link type double toggle section clamping mechanism, the related improved design of the driving and control modes is carried out.

According to the theoretical analysis of the nine-link type double toggle section clamping mechanism, it can be seen that the movement of each part is plane motion, and the moving plane of each part is parallel to each other, so it can be returned The class is a Planar mechanism; since the number of parts is n = 9, the number of rotary joints is j _R = 10, and the number of sliding joints is j _P = 2, therefore, the degree of freedom of the mechanism (Degree of freedom) f is f = 3( n -1) - 2( j _R + j _P )=3(9-1)-2(10+2)=0 (1) The freedom of this kind of mechanism can be known from equation (1) The degree is zero. (Reference sources for the formula for calculating degrees of freedom: Yan Hongsen, Wu Longyong, Institutional Studies, Taiwan Donghua Book Company, Taipei City, September 2006, first edition, pp. 29~30, ISBN 978-957-483-394-8.) Therefore, The nine-link type double toggle section clamping mechanism used today is theoretically a Paradoxical mechanism; in other words, it is a mechanism with zero degree of freedom but still produces Constrained motion. Since the degree of freedom of the contradictory mechanism is zero, but the restraint movement must still be produced, the size and geometric relationship of the connecting rod must be very special and very precise. The contradictory mechanism corresponds to the conventional nine-link type double toggle section clamping mechanism. The requirements are as follows: the shape and size of the machine must be very precise, the deformation of the machine when the force is applied is small, and the whole of the machine During the operation, the clamping mechanism must be completely symmetrical. The direction of translation of the sliding template 2 is called the front and rear directions. The direction parallel to all the pivotal central axes between the components in the mechanism is called left and right. In both directions, the rest are in the upper and lower directions respectively; it can be seen that the second transmission member 32 and the fifth transmission member must have the same machine shape and size in design, and the third transmission member 33 and The sixth transmission member 36 must have the same shape and size of the machine. The fourth transmission member 34 and the seventh transmission member 37 must have the same shape and size. In particular, when the machining error of the shape and size of the machine is too large or the deformation of the machine is too large due to the force or temperature change, so that the clamping mechanism no longer maintains a symmetrical geometric relationship, the mechanism itself may have zero degree of freedom. It is difficult to produce the originally set restraint movement by transforming into a structure. In other words, in order for the mechanism to generate a predetermined restraining motion, a considerable external force must be applied to it so that the mechanical component produces a compensatory deformation amount to offset the deviation of the true size of the clamping mechanism which is no longer symmetrical, so It can cause great deformation or even fatigue damage of the machine. Therefore, these special strict requirements make the conventional nine-link type double toggle section clamping mechanism increase the cost in the machining of the parts and the assembly and maintenance of the machine. Once the shape and size of the machine cannot meet the very precise requirements or the rigidity is not enough, when the plastic melt or molten metal is poured, the machine often produces steep vibration, which often causes poor parallelism between the templates or The quality of the molded article is affected by the incomplete mold closing.

The Republic of China Patent Gazette No. 237414, the Republic of China Patent Gazette No. 398408, the Republic of China Patent Gazette No. 403045, the Republic of China Patent Gazette No. 477279, the Republic of China Patent Gazette No. 516502, the Republic of China Patent Gazette No. 578682, and the Republic of China Patent Publication No. I305174 proposes different degrees of structural innovation and improvement for the link type double toggle section clamping mechanism, which is different from the structure of the conventional mechanism and its driving method. However, the core mechanism used in these designs is still connected by nine core mechanisms through ten rotary joints and two sliding joints. Therefore, the theoretical analysis still belongs to the degree of freedom. Zero contradictory body. The Republic of China Patent Gazette No. M327788 proposes a novel double-knuckle clamping mechanism which basically interconnects and produces a relative motion relationship with thirteen core parts through sixteen rotary joints and two sliding joints. Therefore, the theoretical analysis is also a contradictory mechanism with zero degree of freedom (refer to the formula (1), the degree of freedom of the mechanism is f = 3 (13-1) - 2 (16 + 2) = 0). Since the above-mentioned related clamping mechanism design is a contradiction mechanism, once the shape and size of the machine cannot meet the very precise requirements or the rigidity is not enough, the clamping mechanism must maintain the completely symmetrical geometry in the whole operation of the machine. When the conditions cannot be satisfied, the stability of the machine itself and the quality of the molded product are affected. In addition, U.S. Patent No. 3,276,943 discloses a multi-degree-of-freedom mode-locking mechanism which basically interconnects and produces a relative motion relationship with eleven core members through ten rotary joints and two sliding joints. The eight rotary joints are so-called single joints and the two parts are pivotally connected, and the other two rotary joints are so-called multiple joints and the three parts are pivotally connected. The two joints can be regarded as four equivalent single joints, so the whole can be regarded as having twelve equivalent single joints; therefore, the mechanism is theoretically analyzed to belong to the linkage mechanism with two degrees of freedom [Reference ( The formula 1) shows that the degree of freedom of the mechanism f = 3 (11-1) - 2 (12 + 2) = 2]. In principle, the two-degree-of-freedom mechanism must use two power units (such as hydraulic cylinders or motors) for driving to produce restraint movements; otherwise it must be designed with special and strict dimensions or additional restraints. On the machine, to ensure that a single power unit can drive the mechanism to smoothly create a double toggle configuration.

In view of this, in order to effectively improve the above-mentioned shortcomings of the conventional clamping mechanism, the inventor of the present invention actively researched and developed with the relevant professional knowledge of the mechanism device design, and produced the "ten-link type double toggle section clamping mechanism" of the present invention.

The main object of the present invention is to provide an innovative construction of a link type toggle clamping mechanism to overcome the possibility that the conventional nine-link type double toggle section clamping mechanism belongs to a contradiction mechanism with zero degree of freedom. Disadvantages.

For the calculation formula of the degree of freedom of the planar mechanism, it can be seen that when the number of parts of a certain ten-link type mechanism is n = 10, and the number of its rotary joints is specified, j _R = 11 and the number of its sliding joints j _P = 2 When the degree of freedom f of the mechanism is f = 3 ( n -1) - 2 ( j _R + j _P ) = 3 (10-1) - 2 (11 + 2) = 1 (2) by (2) It can be seen that the degree of freedom of this kind of institution is one, not a contradiction. Therefore, this mechanism is compared with the conventional nine-link type double toggle section clamping mechanism (the number of parts is n = 9, the number of rotary joints is j _R = 10, the number of sliding joints is j _P = 2) In other words, a mechanical part and a rotary joint are added. The difference in the number of such numbers can be derived from the design principle of a ten-link type double toggle section clamping mechanism, which is: "If one of the nine-link type double toggle section clamping mechanism is used Structurally disassembling and converting into a two-link member that is pivotally connected by two separate parts through a rotary joint, and replacing the original part with the two-link member Produced an innovative construction of a ten-link type double toggle section clamping mechanism.

The main feature of the present invention is the innovative construction of the clamping mechanism produced by the above design principle, that is, the ten-link type clamping mechanism having the double toggle configuration.

Therefore, in order to achieve the above objects and features, the ten-link type double toggle section clamping mechanism proposed by the present invention is mainly composed of a base body, a sliding template and a modified link set. Wherein, the structure and the relative motion relationship between the base body, the sliding template and the correction link set are similar to those of the conventional nine-link type double toggle section clamping mechanism, but the modified link set phase A mechanism and a rotary joint are added to the linkage set of the conventional mechanism. Thereby, the ten-link type double toggle section clamping mechanism proposed by the present invention has a degree of freedom of one, and the restraining movement can be more rationally and effectively generated compared to the conventional contradictory mechanism (the degree of freedom is zero). At the same time, the double toggle configuration can be generated by the relative movement between the correction link set and the base body and simultaneously driving the sliding template to a certain position to achieve the effect of the double toggle section clamping mechanism.

The main function of the present invention is to overcome the conventional strict requirements of the nine-link type double toggle section clamping mechanism in the whole operation of the machine, and the clamping mechanism must maintain full symmetry. It reduces the cost of machining parts and machine assembly and maintenance. In other words, the shape and size of the mechanism of the ten-link type double toggle section clamping mechanism proposed by the present invention can effectively produce the restraining motion even if it cannot achieve very precise requirements in the process of processing and assembly. In turn, the stability of the machine itself and the quality of the molded product can be improved.

The technical means for achieving the above objects, features and effects of the present invention are exemplified by four preferred embodiments in conjunction with the drawings.

The innovative structural features of the first preferred embodiment of the present invention are as shown in the seventh figure, wherein (a) the small figure is a process diagram of converting a single mechanism of a conventional mechanism into a two-link member, (b) The small figure shows an exploded perspective view of the converted two-link member. The innovative structural feature of the embodiment is that the first transmission member 313 of the active translation member 31 of the conventional mechanism is structurally decomposed and converted into a first correction member 313a and a first by a first transmission member. The second correcting member 313b of the transmission member is pivotally connected to the two-link member; at the same time, the active translation member 31 is also converted into a modified active translation member 31a, which is constructed by a piston 311 and a piston rod 312. And fixing the first correcting member 313a of the first transmission member; thereby, the two-link member formed by the modified active translation member 31a and the second correcting member 313b of the first transmission member replaces the Active translation member 31. 8 to 10 are respectively a first side sectional perspective view, a second side sectional perspective view, and a side perspective view of the modified link set of the first preferred embodiment of the present invention, which mainly include a The base body 1, a slide template 2, and a correction link set 3a. The base body 1 mainly includes a fixed bottom plate 11, a front fixed template 12, a rear fixed substrate 13, a plurality of guide posts 14, and a hydraulic cylinder 15; wherein the front fixed template 12 and the rear fixed substrate 13 are The plurality of guide posts 14 are respectively fixed to the front fixed template 12 and the rear fixed substrate 13 in a mutually parallel arrangement, and the hydraulic cylinders are respectively fixed at a position on a plane of the fixed bottom plate 11 . The 15 series is fixed at an appropriate position of the rear fixed substrate 13. The sliding template 2 is constrained by the plurality of guiding columns 14 to have a relative translation with the base body 1 in a direction parallel to the plurality of guiding columns 14. The two opposite planes of the front fixed template 12 and the sliding template 2 are respectively used for mounting the male mold and the female mold, and the front fixed template 12 has an inlet 121 for injecting plastic melt or molten metal. In the mold when closed. The correction link set 3a mainly includes a modified active translation member 31a, a second correction member 313b of the first transmission member, a second transmission member 32, a third transmission member 33, and a fourth transmission member 34. a fifth transmission member 35, a sixth transmission member 36, and a seventh transmission member 37; wherein the correction active translation member The piston 311 in 31a is restrained by the hydraulic cylinder 15 so that the modified active translation member 31a and the base body 1 have a relative translation in a direction parallel to the plurality of guide columns 14; the correction active translation member 31a One end of the first correcting member 313a of the first transmission member is pivotally connected to one end of the second correcting member 313b of the first transmitting member; the other ends of the second correcting member 313b of the first transmitting member are respectively One end of the second transmission member 32 and one end of the fifth transmission member 35 are pivotally connected; the other end of the second transmission member 32 is pivotally connected to one end of the third transmission member 33; the third transmission member 33 The other ends are respectively pivotally connected to one of the rear fixed substrate 13 and one end of the fourth transmission member 34; the other end of the fourth transmission member 34 is at an appropriate position of the sliding template 2 The other end of the fifth transmission member 35 is pivotally connected to one end of the sixth transmission member 36; the other ends of the sixth transmission member 36 are respectively disposed at another suitable position of the rear fixed substrate 13 And one end of the seventh transmission member 37 is pivotally connected; the other end of the seventh transmission member 37 is coupled to The other position of the sliding template 2 is pivotally connected; all the pivotal central axes between the above components are theoretically parallel to each other and perpendicular to the translation direction of the sliding template 2, and the above All of the pivotal central axes between the elements are theoretically perpendicular to the translational direction of the modified active translation member 31a. Thereby, the base body 1, the sliding template 2, the modified active translation member 31a, the second correction member 313b of the first transmission member, the second transmission member 32, the third transmission member 33, the first Ten core members, such as the four transmission members 34, the fifth transmission member 35, the sixth transmission member 36, and the seventh transmission member 37, are connected to each other through the eleven rotary joints and the two sliding joints. The sports relationship constitutes the first type of ten-bar linkage double toggle joint clamping mechanism. Figure 11 is a schematic view showing the operation of the first preferred embodiment of the present invention, wherein the three small figures (a), (b), and (c) are respectively shown by the sliding template 2 The state of the extreme position, the intermediate process position, and the front limit position; when the sliding template 2 is at its front limit position, the ten-link type clamping mechanism forms a so-called double toggle configuration to generate a very large mechanical advantage. And provide clamping force to make the mold completely closed. As shown in the small figure (c) of FIG. 11 , a toggle configuration is generated at the pivot center A of the rear fixed substrate 13 and the third transmission member 33, the third transmission member 33 and the fourth When the pivoting center B of the transmission member 34 and the pivotal center C of the fourth transmission member 34 and the sliding template 2 are theoretically in a collinear geometric relationship, another toggle configuration is generated thereafter. a pivoting center D of the fixed base plate 13 and the sixth transmission member 36, a pivoting center E of the sixth transmission member 36 and the seventh transmission member 37, and a pivoting center of the seventh transmission member 37 and the sliding template 2 When F and the like are theoretically in a collinear geometric relationship, and the two toggle configurations are theoretically generated at the same time, thereby achieving the effect of the double toggle joint clamping mechanism.

The innovative structural features of the second preferred embodiment of the present invention are as shown in Fig. 12, wherein (a) the small figure is a process diagram for converting a single mechanism of a conventional mechanism into a two-link member, ( b) The small figure shows an exploded perspective view of the converted two-link member. The innovative structural feature of the embodiment is that the fifth transmission member 35 of the conventional mechanism is structurally decomposed and converted into a second correction member of a fifth transmission member and a second modification member. A two-link member pivotally connected to the 35b phase, thereby replacing the fifth transmission member 35. 13 to 15 are respectively a first side sectional perspective view, a second side sectional perspective view, and a side perspective view of the modified link group of the second preferred embodiment of the present invention, which are mainly A base body 1, a sliding template 2 and a correction link set 3b are included. The base body 1 mainly includes a fixed bottom plate 11, a front fixed template 12, a rear fixed substrate 13, a plurality of guide posts 14, and a hydraulic cylinder 15; wherein the front fixed template 12 and the rear fixed substrate 13 are The plurality of guide posts 14 are respectively fixed to the front fixed template 12 and the rear fixed substrate 13 in a mutually parallel arrangement, and the hydraulic cylinders are respectively fixed at a position on a plane of the fixed bottom plate 11 . The 15 series is fixed at an appropriate position of the rear fixed substrate 13. The sliding template 2 is constrained by the plurality of guiding columns 14 to have a relative translation with the base body 1 in a direction parallel to the plurality of guiding columns 14. The two opposite planes of the front fixed template 12 and the sliding template 2 are respectively used for mounting the male mold and the female mold, and the front fixed template 12 has an inlet 121 for injecting plastic melt or molten metal. In the mold when closed. The modified link set 3b mainly includes an active translation member 31, a second transmission member 32, a third transmission member 33, a fourth transmission member 34, and a first correction member 35a of the fifth transmission member. a second correcting member 35b, a sixth transmitting member 36 and a seventh transmitting member 37 of the fifth transmission member; wherein the active translation member 31 is configured by a piston 311, a piston rod 312 and a first The transmission member 313 is fixedly connected, and the piston 311 is restrained by the hydraulic cylinder 15 to make the active translation member 31 and the base body 1 have a relative translation in a direction parallel to the plurality of guide columns 14; the active translation member The two ends of the first transmission member 313 are respectively pivotally connected to one end of the second transmission member 32 and one end of the first correction member 35a of the fifth transmission member; the other end of the second transmission member 32 The two ends of the third transmission member 33 are pivotally connected to one end of the third transmission member 33; and the other ends of the third transmission member 33 are respectively pivotally connected to one of the rear fixed substrate 13 and one end of the fourth transmission member 34; The other end of the fourth transmission member 34 is pivotally connected to an appropriate position of the sliding template 2; The other end of the first correcting member 35a of the transmission member is pivotally connected to one end of the second correcting member 35b of the fifth transmitting member; the other end of the second correcting member 35b of the fifth transmitting member is coupled to the sixth transmission One end of the piece 36 is pivotally connected; the other end of the sixth transmission member 36 is divided Not at another suitable position of the rear fixed substrate 13 and one end of the seventh transmission member 37; the other end of the seventh transmission member 37 is pivotally connected to another suitable position of the sliding template 2 All of the pivotal central axes between the elements described above are theoretically parallel to each other and simultaneously perpendicular to the translational direction of the sliding template 2, and all of the pivotal central axes between the above elements are theoretically At the same time, it is perpendicular to the translation direction of the active translator 31. Thereby, the first body of the base body 1, the sliding template 2, the active translation member 31, the second transmission member 32, the third transmission member 33, the fourth transmission member 34, and the fifth transmission member Ten core members, such as the correcting member 35a, the second correcting member 35b of the fifth transmitting member, the sixth transmitting member 36, and the seventh transmitting member 37, are mutually exchanged through the eleven rotary joints and the two sliding joints. The connection and the relative motion relationship form a second ten-link type double toggle section clamping mechanism. Figure 16 is a schematic view showing the operation of the second preferred embodiment of the present invention, wherein the three small figures (a), (b) and (c) show that the sliding template 2 is located behind The state of the extreme position, the intermediate process position, and the front limit position; when the sliding template 2 is at its front limit position, the ten-link type clamping mechanism forms a so-called double toggle configuration to generate a very large mechanical advantage. And provide clamping force to make the mold completely closed. As shown in the small figure (c) of the sixteenth diagram, a toggle configuration is generated at the pivoting center A of the rear fixed substrate 13 and the third transmission member 33, the third transmission member 33 and the fourth When the pivoting center B of the transmission member 34 and the pivotal center C of the fourth transmission member 34 and the sliding template 2 are theoretically in a collinear geometric relationship, another toggle configuration is generated thereafter. a pivoting center D of the fixed base plate 13 and the sixth transmission member 36, a pivoting center E of the sixth transmission member 36 and the seventh transmission member 37, and a pivoting center of the seventh transmission member 37 and the sliding template 2 When F and the like are theoretically in a collinear geometric relationship, and the two toggle configurations are theoretically generated at the same time, thereby achieving the effect of the double toggle joint clamping mechanism. In addition, in this embodiment, if the second transmission member 32 of the conventional mechanism is structurally decomposed and converted into a corresponding two-link member, the fifth transmission member 35 for the conventional mechanism can be converted. The effect of the second transmission member 32 or the fifth transmission member 35 for the conversion of the two-link member is obtained, and the ten-link type of the same topological structure can be obtained theoretically. Double toggle joint clamping mechanism. However, the configuration of the preferred embodiment is equivalent to the combination mechanism of the upper half or the lower half of each of the symmetric link mechanisms respectively adopted in the U.S. Patent No. 1880380 and U.S. Patent No. 3,276,943. . Therefore, the preferred embodiment is only used to illustrate an embodiment of the design principles described in the Summary of the Invention, and is not intended to be included in the scope of the patent application.

The innovative structural features of the third preferred embodiment of the present invention are as shown in FIG. 17, wherein (a) the small figure is a process diagram of converting a single mechanism of a conventional mechanism into a two-link member, ( b) The small figure shows an exploded perspective view of the converted two-link member. The innovative structural feature of the embodiment is that the third transmission member 33 of the conventional mechanism is structurally decomposed and converted into a second correction member of a third transmission member and a second correction member of a third transmission member. The two-link member pivotally connected to the 33b phase is used instead of the third transmission member 33. 18 to 20 are respectively a first side sectional perspective view, a second side sectional perspective view, and a side perspective view of the modified link group of the third preferred embodiment of the present invention, which are mainly A base body 1, a sliding template 2 and a correction link set 3c are included. The base body 1 mainly includes a fixed bottom plate 11, a front fixed template 12, a rear fixed substrate 13, a plurality of guide posts 14, and a hydraulic cylinder 15; wherein the front fixed template 12 and the rear fixed substrate 13 are The plurality of guide posts 14 are respectively fixed to the front fixed template 12 and the rear fixed substrate 13 in a mutually parallel arrangement, and the hydraulic cylinders are respectively fixed at a position on a plane of the fixed bottom plate 11 . The 15 series is fixed at an appropriate position of the rear fixed substrate 13. The sliding template 2 is constrained by the plurality of guiding columns 14 to have a relative translation with the base body 1 in a direction parallel to the plurality of guiding columns 14. The two opposite planes of the front fixed template 12 and the sliding template 2 are respectively used for mounting the male mold and the female mold, and the front fixed template 12 has an inlet 121 for injecting plastic melt or molten metal. In the mold when closed. The correction link set 3c mainly comprises an active translation member 31, a second transmission member 32, a first correction member 33a of the third transmission member, a second correction member 33b of the third transmission member, and a first a fourth transmission member 34, a fifth transmission member, a sixth transmission member 36 and a seventh transmission member 37; wherein the active translation member 31 is configured by a piston 311, a piston rod 312 and a first transmission The member 313 is fixedly connected, and the piston 311 is restrained by the hydraulic cylinder 15 to make the active translation member 31 and the base body 1 have a relative translation in a direction parallel to the plurality of guide columns 14; the active translation member 31 The two ends of the first transmission member 313 are respectively pivotally connected to one end of the second transmission member 32 and one end of the fifth transmission member 35; the other end of the second transmission member 32 is coupled to the third transmission One end of the second correcting member 33b is pivotally connected; the other ends of the second correcting member 33b of the third transmitting member are respectively connected to one end of the first correcting member 33a of the third transmitting member and the fourth transmitting member One end of the third transmission member is pivotally connected; the other end of the first correcting member 33a of the third transmission member is coupled to the rear fixing base One end of the plate 13 is pivotally connected; the other end of the fourth transmission member 34 is pivotally connected to a suitable position of the sliding template 2; the other end of the fifth transmission member is coupled to the sixth transmission member One end of the 36 is pivotally connected; the other ends of the sixth transmission member 36 are respectively associated with the Another suitable position of the rear fixed substrate 13 and one end of the seventh transmission member 37 are pivotally connected; the other end of the seventh transmission member 37 is pivotally connected to another suitable position of the sliding template 2; All the pivotal central axes between the components are theoretically parallel to each other and perpendicular to the translational direction of the sliding template 2, and all the pivotal central axes between the above components are theoretically simultaneously The translational direction of the active translation member 31 is perpendicular. Thereby, the base body 1, the sliding template 2, the active translation member 31, the second transmission member 32, the first correction member 33a of the third transmission member, and the second correction member of the third transmission member The ten core parts, such as the fourth transmission member 34, the fifth transmission member 35, the sixth transmission member 36, and the seventh transmission member 37, are mutually exchanged through the eleven rotary joints and the two sliding joints. The connection and the relative motion relationship form a third type of ten-link type double toggle section clamping mechanism. Figure 21 is a schematic view showing the operation of the third preferred embodiment of the present invention, wherein the three small figures (a), (b), and (c) are respectively shown in the sliding template 2; The state of the rear limit position, the intermediate process position, and the front limit position; when the slide template 2 is at its front limit position, the ten-link type clamping mechanism forms a so-called double toggle configuration to produce a very large machine Benefits, and provide clamping force to fully close the mold. As shown in the small figure (c) of the twenty-first figure, a toggle configuration is generated at the pivot center A of the rear fixed substrate 13 and the first correcting member 33a of the third transmission member, and the third transmission The pivoting center G of the first correcting member 33a of the third transmitting member and the second correcting member 33b of the third transmitting member, the pivoting center B of the second correcting member 33b of the third transmitting member and the fourth transmitting member 34, and the When the fourth transmission member 34 and the pivoting center C of the sliding template 2 are theoretically in a collinear geometric relationship, another toggle configuration is generated in the rear fixed substrate 13 and the sixth transmission member 36. The pivoting center D, the pivoting center E of the sixth transmission member 36 and the seventh transmission member 37, and the pivoting center F of the seventh transmission member 37 and the sliding template 2 are theoretically collinear. In the geometric relationship, the two toggle configurations are theoretically produced simultaneously, thereby achieving the effect of the double toggle joint clamping mechanism. In addition, in this embodiment, if the sixth transmission member 36 of the conventional mechanism is structurally decomposed and converted into a corresponding two-link member, the third transmission member 33 for the conventional mechanism can be converted. The effect is that the three-link member is converted by the third transmission member 33 or the sixth transmission member 36 of the conventional mechanism, and the ten-link type double toggle section clamping mechanism of the same topology is obtained.

The innovative structural features of the fourth preferred embodiment of the present invention are as shown in the twenty-second diagram, wherein (a) the small figure is a process diagram of converting a single mechanism of a conventional mechanism into a two-link member. (b) The small figure shows an exploded perspective view of the converted two-link member. The innovative structural feature of this embodiment is the needle The fourth transmission member 34 of the conventional mechanism is structurally disassembled and converted into a second connection formed by the first correction member 34a of a fourth transmission member and the second correction member 34b of a fourth transmission member. The lever member is thereby replaced by the fourth transmission member 34. 23 to 25 are respectively a first side sectional perspective view, a second side sectional perspective view, and a side perspective view of the modified link group of the fourth preferred embodiment of the present invention, It mainly comprises a base body 1, a sliding template 2 and a correction link set 3d. The base body 1 mainly includes a fixed bottom plate 11, a front fixed template 12, a rear fixed substrate 13, a plurality of guide posts 14, and a hydraulic cylinder 15; wherein the front fixed template 12 and the rear fixed substrate 13 are The plurality of guide posts 14 are respectively fixed to the front fixed template 12 and the rear fixed substrate 13 in a mutually parallel arrangement, and the hydraulic cylinders are respectively fixed at a position on a plane of the fixed bottom plate 11 . The 15 series is fixed at an appropriate position of the rear fixed substrate 13. The sliding template 2 is constrained by the plurality of guiding columns 14 to have a relative translation with the base body 1 in a direction parallel to the plurality of guiding columns 14. The two opposite planes of the front fixed template 12 and the sliding template 2 are respectively used for mounting the male mold and the female mold, and the front fixed template 12 has an inlet 121 for injecting plastic melt or molten metal. In the mold when closed. The modified link set 3d mainly includes an active translation member 31, a second transmission member 32, a third transmission member 33, a first correction member 34a of the fourth transmission member, and a fourth transmission member. a second correcting member 34b, a fifth transmitting member, a sixth transmitting member 36 and a seventh transmitting member 37; wherein the active translation member 31 is configured by a piston 311, a piston rod 312 and a first transmission The member 313 is fixedly connected, and the piston 311 is restrained by the hydraulic cylinder 15 to make the active translation member 31 and the base body 1 have a relative translation in a direction parallel to the plurality of guide columns 14; the active translation member 31 The two ends of the first transmission member 313 are respectively pivotally connected to one end of the second transmission member 32 and one end of the fifth transmission member 35; the other end of the second transmission member 32 is coupled to the third transmission One end of the member 33 is pivotally connected; the other ends of the third transmission member 33 are respectively pivotally connected to one of the rear fixing substrate 13 and one end of the first correcting member 34a of the fourth transmission member; The other end of the first correcting member 34a of the fourth transmission member and the second correcting member 34b of the fourth transmission member One end is pivotally connected; the other end of the second correcting member 34b of the fourth transmission member is pivotally connected to an appropriate position of the sliding template 2; the other end of the fifth transmission member is coupled to the sixth transmission member 36. One end of the sixth transmission member 36 is pivotally connected to another suitable position of the rear fixed substrate 13 and one end of the seventh transmission member 37; the seventh transmission member 37 is The other end is pivotally connected to another suitable position of the sliding template 2; all the pivotal central axes between the above components are theoretically parallel to each other and simultaneously sliding The translation direction of the template 2 is perpendicular, and all the pivotal central axes between the elements described above are theoretically perpendicular to the translational direction of the active translation member 31. Thereby, the base body 1, the sliding template 2, the active translation member 31, the second transmission member 32, the third transmission member 33, the first correction member 34a of the fourth transmission member, the fourth Ten core members, such as the second correcting member 34b of the transmission member, the fifth transmitting member 35, the sixth transmitting member 36, and the seventh transmitting member 37, are mutually exchanged through the eleven rotary joints and the two sliding joints. The connection and the relative motion relationship form a fourth type of ten-link type double toggle section clamping mechanism. Figure 26 is a schematic view showing the operation of the fourth preferred embodiment of the present invention, wherein three small figures (a), (b), and (c) are respectively shown in the sliding template 2; The state of the rear limit position, the intermediate process position, and the front limit position; when the slide template 2 is at its front limit position, the ten-link type clamping mechanism forms a so-called double toggle configuration to produce a very large machine Benefits, and provide clamping force to fully close the mold. As shown in the small figure (c) of the twenty-sixth diagram, a toggle configuration is generated at the pivot center A of the rear fixed substrate 13 and the third transmission member 33, the third transmission member 33 and the first The pivoting center B of the first correcting member 34a of the fourth transmission member, the pivoting center G of the first correcting member 34a of the fourth transmitting member and the second correcting member 34b of the fourth transmitting member, and the fourth transmitting member When the second correcting member 34b and the pivoting center C of the sliding template 2 are theoretically in a collinear geometric relationship, another toggle configuration is generated in the rear fixed substrate 13 and the sixth transmitting member 36. The pivoting center D, the pivoting center E of the sixth transmission member 36 and the seventh transmission member 37, and the pivoting center F of the seventh transmission member 37 and the sliding template 2 are theoretically collinear. In the geometric relationship, the two toggle configurations are theoretically produced simultaneously, thereby achieving the effect of the double toggle joint clamping mechanism. In addition, in this embodiment, if the seventh transmission member 37 of the conventional mechanism is structurally decomposed and converted into a corresponding two-link member, the above-mentioned fourth transmission member 34 for the conventional mechanism can also be converted. The effect is that the four-link member is converted by the fourth transmission member 34 or the seventh transmission member 37 of the conventional mechanism, and the ten-link type double toggle section clamping mechanism of the same topology is obtained.

In summary, the "ten link type double toggle section clamping mechanism" of the present invention can be innovatively constructed by the first preferred embodiment, the third preferred embodiment and the fourth preferred embodiment. To achieve the effect of mold locking, in line with the novelty, advancement and industrial utilization of the invention patents, and apply for patents according to law.

The drawings and the descriptions of the present invention are merely illustrative of the embodiments of the present invention, and are not intended to limit the scope of the present invention, and the design of the present invention is applied to those skilled in the art. Other equivalent changes or modifications are to be included in the scope of the patent application in the following.

1‧‧‧Base body

11‧‧‧Fixed base plate

12‧‧‧Front fixed template

121‧‧‧Inlet

13‧‧‧ Rear fixed substrate

14‧‧‧ Guide column

15‧‧‧Hydraulic cylinder

2‧‧‧Sliding template

3‧‧‧ linkage group

3a‧‧‧corrected link set

3b‧‧‧corrected link set

3c‧‧‧corrected link set

3d‧‧‧corrected link set

31‧‧‧Active translation

31a‧‧‧Revised active translation

311‧‧‧Piston

312‧‧‧ piston rod

313‧‧‧First transmission parts

313a‧‧‧First corrective part of the first transmission

313b‧‧‧Second corrective part of the first transmission

32‧‧‧Second transmission parts

33‧‧‧ Third transmission parts

33a‧‧‧First corrective part of the third transmission

33b‧‧‧Second correcting part of the third transmission

34‧‧‧Fourth transmission

34a‧‧‧The first corrective part of the fourth transmission

34b‧‧‧Second correction of the fourth transmission

35‧‧‧ fifth transmission

35a‧‧‧First corrective part of the fifth transmission

35b‧‧‧The second correcting part of the fifth transmission

36‧‧‧ sixth transmission

37‧‧‧ seventh transmission

A‧‧‧ pivotal center

B‧‧‧ pivotal center

C‧‧‧ pivotal center

D‧‧‧ pivotal center

E‧‧‧ pivotal center

f ‧‧‧Institutional degrees of freedom

F‧‧‧ pivotal center

G‧‧‧ pivotal center

j _P ‧‧‧Number of sliding joints

j _R ‧‧‧Number of rotary joints

n ‧‧‧Number of parts

The first figure is a first side full perspective view of a conventional nine-link type double toggle section clamping mechanism.

The second figure is a first side cross-sectional perspective view of a conventional nine-link type double toggle section clamping mechanism.

The third figure is a second side view complete perspective view of a conventional nine-link type double toggle section clamping mechanism.

The fourth figure is a second side cross-sectional perspective view of a conventional nine-link type double toggle section clamping mechanism.

The fifth figure is a side perspective view of a link set of a conventional nine-link type double toggle section clamping mechanism.

The sixth figure is a schematic diagram of the operation of the conventional nine-link type double toggle section clamping mechanism: (a) rear limit position, (b) intermediate process position, and (c) front limit position (ie, toggle configuration).

Figure 7 is a diagram showing an innovative structural feature of the first preferred embodiment of the present invention: (a) a process diagram of converting a single mechanism of a conventional mechanism into a two-link member, and (b) a converted two-link member Decompose the perspective view.

Figure 8 is a first side cross-sectional perspective view of a first preferred embodiment of the present invention.

Figure 9 is a second side cross-sectional perspective view of a first preferred embodiment of the present invention.

Figure 11 is a side perspective view of a modified link set of a first preferred embodiment of the present invention.

The eleventh diagram is a schematic diagram of the operation of the first preferred embodiment of the present invention: (a) a rear limit position, (b) an intermediate process position, and (c) a front limit position (i.e., a toggle configuration).

Figure 12 is a diagram showing an innovative structural feature of a second preferred embodiment of the present invention: (a) a process diagram for converting a single member of a conventional mechanism into a two-link member, and (b) a converted two-link member An exploded perspective view.

Figure 13 is a first side sectional perspective view of a second preferred embodiment of the present invention.

Figure 14 is a second side sectional perspective view of a second preferred embodiment of the present invention.

Figure 15 is a side perspective view of a modified link set of a second preferred embodiment of the present invention.

Figure 16 is a schematic view of the operation of the second preferred embodiment of the present invention: (a) rear limit position, (b) intermediate process position, and (c) front limit position (i.e., toggle configuration).

Figure 17 is a diagram showing an innovative structural feature of a third preferred embodiment of the present invention: (a) a process diagram for converting a single member of a conventional mechanism into a two-link member, and (b) a converted two-link member An exploded perspective view.

Figure 18 is a first side sectional perspective view of a third preferred embodiment of the present invention.

Figure 19 is a second side sectional perspective view of a third preferred embodiment of the present invention.

Figure 20 is a side perspective view of a modified link set of a third preferred embodiment of the present invention.

The twenty-first embodiment is a schematic diagram of the operation of the third preferred embodiment of the present invention: (a) rear limit position, (b) intermediate process position, and (c) front limit position (i.e., toggle configuration).

The twenty-second diagram is an innovative structural feature diagram of the fourth preferred embodiment of the present invention: (a) a process diagram in which a single mechanism of a conventional mechanism is converted into a two-link member, and (b) a converted two-link An exploded perspective view of the component.

Figure 23 is a first side sectional perspective view of a fourth preferred embodiment of the present invention.

Figure 24 is a second side sectional perspective view of a fourth preferred embodiment of the present invention.

A twenty-fifth drawing is a side perspective view of a modified link set of a fourth preferred embodiment of the present invention.

Figure 26 is a schematic diagram of the operation of the fourth preferred embodiment of the present invention: (a) rear limit position, (b) intermediate process position, and (c) front limit position (i.e., toggle configuration).

1‧‧‧Base body

11‧‧‧Fixed base plate

12‧‧‧Front fixed template

121‧‧‧Inlet

13‧‧‧ Rear fixed substrate

14‧‧‧ Guide column

15‧‧‧Hydraulic cylinder

2‧‧‧Sliding template

3a‧‧‧corrected link set

Claims (9)

A ten-link type double toggle joint clamping mechanism, comprising at least: a base body; a sliding template, which is constrained by the base body to have relative translation in a certain direction; and a link set The system includes at least one active translation member, a first transmission member, a second transmission member, a third transmission member, a fourth transmission member, a fifth transmission member, a sixth transmission member, and a seventh transmission member. The active translation member is restrained by the base body and has a relative translation with the base body; the three ends of the first transmission member are respectively connected to one end of the active translation member and the second transmission member One end and one end of the fifth transmission member are pivotally connected; the other end of the second transmission member is pivotally connected to one end of the third transmission member; the other ends of the third transmission member are respectively coupled to the base One end of the body is pivotally connected to one end of the fourth transmission member; the other end of the fourth transmission member is pivotally connected to one of the sliding templates; the other end of the fifth transmission member is coupled to One end of the sixth transmission member is pivotally connected; the other two of the sixth transmission member Is pivotally connected to another suitable position of the base body and one end of the seventh transmission member; the other end of the seventh transmission member is pivotally connected to another suitable position of the sliding template; A double toggle configuration can be generated by the relative translation between the active translation member and the base body and simultaneously shifting the sliding template to a position through the link set to achieve a double toggle joint clamping mechanism. effect. The ten-link type double toggle section clamping mechanism according to claim 1, wherein all the pivotal central axes between the components are theoretically parallel to each other and perpendicular to the translation direction of the sliding template. Moreover, all the pivotal central axes between the components are theoretically perpendicular to the translational direction of the active translation member, and the translational direction of the sliding template and the translational direction of the active translation member are theoretically parallel to each other. . The ten-link type double toggle section clamping mechanism according to claim 1, wherein a toggle configuration is generated at a pivoting center of the base body and the third transmission member, and the third transmission member When the pivotal center of the fourth transmission member and the pivotal center of the fourth transmission member and the sliding template are theoretically in a collinear relationship, another toggle configuration is generated on the base a pivoting center of the body and the sixth transmission member, a pivoting center of the sixth transmission member and the seventh transmission member, and the seventh transmission member and the sliding When the pivotal center of the template is theoretically in a collinear geometric relationship, and the two toggle configurations are theoretically generated simultaneously. A ten-link type double toggle joint clamping mechanism, comprising at least: a base body; a sliding template, which is constrained by the base body to have relative translation in a certain direction; and a link set The system includes at least one active translation member, a first transmission member, a second transmission member, a third transmission member, a fourth transmission member, a fifth transmission member, a sixth transmission member, and a seventh transmission member. The active translation member is constrained by the base body to have a relative translation with the base body; the two ends of the first transmission member are respectively associated with one end of the active translation member and the third transmission member One end of the third transmission member is pivotally connected to one end of the second transmission member and one end of the fourth transmission member; the other end of the second transmission member is coupled to the base One end of the body is pivotally connected; the other end of the fourth transmission member is pivotally connected to an appropriate position of the sliding template; the two ends of the fifth transmission member are respectively connected to the other end of the active translation member And one end of the sixth transmission member is pivotally connected; the sixth transmission member The other ends are respectively pivotally connected to another suitable position of the base body and one end of the seventh transmission member; the other end of the seventh transmission member is pivotally connected to another suitable position of the sliding template. Thereby, a relative translation between the active translation member and the base body and simultaneous translation of the sliding template to a position through the link group can generate a double toggle configuration to achieve a double toggle lock The effect of the mold mechanism. The ten-link type double toggle section clamping mechanism according to claim 4, wherein all the pivotal central axes between the elements are theoretically parallel to each other and simultaneously perpendicular to the translation direction of the sliding template. Moreover, all the pivotal central axes between the components are theoretically perpendicular to the translational direction of the active translation member, and the translational direction of the sliding template and the translational direction of the active translation member are theoretically parallel to each other. . The ten-link type double toggle section clamping mechanism according to claim 4, wherein a toggle configuration is generated at a pivoting center of the base body and the second transmission member, and the second transmission member The pivoting center of the third transmission member, the pivoting center of the third transmission member and the fourth transmission member, and the pivoting center of the fourth transmission member and the sliding template are theoretically collinear Another toggle configuration Generating a pivoting center of the base body and the sixth transmission member, a pivoting center of the sixth transmission member and the seventh transmission member, and a pivoting center of the seventh transmission member and the sliding template. In theory, there is a collinear geometric relationship, and the two toggle configurations are theoretically produced simultaneously. A ten-link type double toggle joint clamping mechanism, comprising at least: a base body; a sliding template, which is constrained by the base body to have relative translation in a certain direction; and a link set The system includes at least one active translation member, a first transmission member, a second transmission member, a third transmission member, a fourth transmission member, a fifth transmission member, a sixth transmission member, and a seventh transmission member. The active translation member is constrained by the base body to have a relative translation with the base body; the two ends of the first transmission member are respectively associated with one end of the active translation member and the second transmission member One end is pivotally connected; the other ends of the second transmission member are respectively pivotally connected to one of the base body and one end of the third transmission member; the other end of the third transmission member is coupled to the other end One end of the fourth transmission member is pivotally connected; the other end of the fourth transmission member is pivotally connected to an appropriate position of the sliding template; the two ends of the fifth transmission member are respectively connected to the other end of the active translation member And one end of the sixth transmission member is pivotally connected; the sixth transmission member The other ends are respectively pivotally connected to another suitable position of the base body and one end of the seventh transmission member; the other end of the seventh transmission member is pivotally connected to another suitable position of the sliding template. Thereby, a relative translation between the active translation member and the base body and simultaneous translation of the sliding template to a position through the link group can generate a double toggle configuration to achieve a double toggle lock The effect of the mold mechanism. The ten-link type double toggle section clamping mechanism according to claim 7, wherein all the pivotal central axes between the elements are theoretically parallel to each other and perpendicular to the translation direction of the sliding template. Moreover, all the pivotal central axes between the components are theoretically perpendicular to the translational direction of the active translation member, and the translational direction of the sliding template and the translational direction of the active translation member are theoretically parallel to each other. . The ten-link type double toggle section clamping mechanism according to claim 7, wherein a toggle configuration is generated at a pivoting center of the base body and the second transmission member, and the second transmission member a pivoting center of the third transmission member, a pivoting center of the third transmission member and the fourth transmission member, and the fourth transmission member When the pivoting center of the sliding template is theoretically in a collinear relationship, another toggle configuration is generated at the pivoting center of the base body and the sixth transmission member, and the sixth transmission member The theoretical relationship between the pivotal center of the seventh transmission member and the pivotal center of the seventh transmission member and the sliding template is theoretically collinear. For simultaneous production.