Intelligent stripping system of three-plate large mold and three-plate large mold

Abstract

The present application relates to control or regulation system, three-plate mould large mould and the like technical field, provide a kind of three-plate mould large mould's intelligent bucking machine system and three-plate mould large mould, the bucking machine system includes: installation in the upper of mould blank A plate's lifting device, for doing lifting motion in the upper of mould blank A plate;Lifting stroke monitoring device is assembled in the side of lifting device, for monitoring the lifting stroke of lifting device, control the lifting motion of lifting device;Bucking machine component, detachably installed in the upper surface of mould blank A plate and mould blank B plate;Bucking machine component is locked with lifting device when lifting device is lowered to preset stroke, mould blank A plate and mould blank B plate are locked;Bucking machine component is unlocked to mould blank A plate and mould blank B plate when lifting device is raised to preset stroke, and the lock of lifting device is separated, unlocking. The intelligent bucking machine system can avoid mould blank wear, dynamically adjust the lock between mould blank, guarantee the stability and reliability of super-large mould in long-term continuous production.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of control or regulation systems, devices used in conjunction with power sources, three-plate mold large molds, etc., and in particular to an intelligent clamping machine system of a three-plate mold large mold and a three-plate mold large mold. BACKGROUND

[0002] For large three-plate mold molds with a locking force of more than 1300 tons, the traditional and common clamping machine structure using spring steel sheets to press tightly is used to realize mold opening and closing locking. However, in the long-term continuous production process, this structure has a series of significant technical problems: first, the spring steel sheet is prone to fatigue and stress relaxation under the working conditions of high temperature, high load and frequent compression, resulting in gradual attenuation of the pre-tightening force, and the stable and effective locking force cannot be continuously provided; secondly, due to insufficient pressing force, the clamping machine and the clamping side of the mold core will produce abnormal impact and friction during movement, causing continuous wear of the mold core side, gradually increasing the gap, not only reducing the positioning accuracy, but also causing product cracking due to uneven tension when opening the mold, frequently interrupting production, increasing the scrap rate and maintenance cost; in addition, the traditional spring clamping machine lacks state monitoring and real-time control capability, and cannot effectively monitor and control the locking state between the mold cores, which seriously affects the reliability, production efficiency and service life of the large mold.

[0003] Therefore, a new clamping machine system capable of avoiding mold core wear and dynamically adjusting the locking between the mold cores is needed to overcome the inherent defects of the traditional pure mechanical spring structure and ensure the stability and reliability of the super-large mold in long-term continuous production. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an intelligent clamping machine system of a three-plate mold large mold and a three-plate mold large mold to realize the ability to avoid mold core wear and dynamically adjust the locking between the mold cores, and ensure the stability and reliability of the super-large mold in long-term continuous production.

[0005] In a first aspect, the present application provides an intelligent clamping machine system of a three-plate mold large mold, comprising:

[0006] A lifting device is installed above the mold core A plate for lifting motion above the mold core A plate;

[0007] A lifting stroke monitoring device is assembled on one side of the lifting device for monitoring the lifting stroke of the lifting device and controlling the lifting motion of the lifting device;

[0008] The buckle assembly is detachably installed on the upper surfaces of the die blank A plate and the die blank B plate; the buckle assembly is locked with the lifting device when the lifting device is lowered to a preset stroke, thereby locking the die blank A plate and the die blank B plate; and the buckle assembly is unlocked from the lifting device when the lifting device is raised to a preset stroke, thereby unlocking the die blank A plate and the die blank B plate.

[0009] In a second aspect, the present application provides a three-plate large die mold using the intelligent buckle system of the three-plate large die mold.

[0010] Compared with the prior art, the present application has the following advantages:

[0011] The present application provides an intelligent buckle system of a three-plate large die mold and a three-plate large die mold. The intelligent buckle system comprises: a lifting device, which is installed above a die blank A plate and is used for lifting and lowering above the die blank A plate; a lifting stroke monitoring device, which is arranged on one side of the lifting device and is used for monitoring the lifting stroke of the lifting device and controlling the lifting and lowering of the lifting device; and a buckle assembly, which is detachably installed on the upper surfaces of the die blank A plate and a die blank B plate. The buckle assembly is locked with the lifting device when the lifting device is lowered to a preset stroke, thereby locking the die blank A plate and the die blank B plate. The buckle assembly is unlocked from the lifting device when the lifting device is raised to a preset stroke, thereby unlocking the die blank A plate and the die blank B plate. The intelligent buckle system can avoid die blank wear and dynamically adjust the locking between die blanks, thereby ensuring the stability and reliability of the super-large die mold in long-term continuous production. BRIEF DESCRIPTION OF DRAWINGS

[0012] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings, which are not necessarily drawn to scale, like reference numerals describe similar components throughout the several views. The specific embodiments of the present application will now be described with reference to the drawings:

[0013] Figure 1 FIG. 1 is a structural schematic diagram of an intelligent buckle system of a three-plate large die mold of an embodiment of the present application when used on a die blank;

[0014] Figure 2 FIG. 2 is a structural schematic diagram of an intelligent buckle system of a three-plate large die mold of an embodiment of the present application;

[0015] Figure 3is another structure schematic diagram of the smart buckling machine system of the three-plate large mold of the embodiment three of the present application when used on the mold blank;

[0016] Figure 4 is a partial structure schematic diagram of the smart buckling machine system of the three-plate large mold of the embodiment three of the present application when used on the mold blank;

[0017] Figure 5 is a structure schematic diagram of the mold blank A plate of the embodiment of the present application;

[0018] Figure 6 is a structure schematic diagram of the buckling machine of the embodiment of the present application;

[0019] Figure 7 is another structure schematic diagram of the buckling machine of the embodiment of the present application.

[0020] Explanation of reference signs:

[0021] 1, lifting device; 10, oil cylinder support; 11, oil cylinder mounting plate; 12, oil cylinder main body; 120, oil cylinder pull rod; 121, oil cylinder connecting block; 122, oil cylinder positioning block;

[0022] 2, mold blank A plate; 20, A plate positioning groove; 201, empty space limiting groove;

[0023] 3, lifting stroke monitoring device; 30, stroke rod; 300, stroke block; 31, connecting rod; 32, positioning block connector; 33, monitoring head;

[0024] 4, buckling machine assembly; 40, buckling machine; 401, cross-plate buckling part; 4010, positioning block limiting through hole; 4011, positioning block limiting groove; 402, B plate buckling part; 4020, inner concave arched curved surface; 41, A plate positioning block; 42, countersunk screw; 43, buckling machine positioning block;

[0025] 5, mold blank B plate; 50, buckling part accommodating groove; 501, outer convex arched curved surface. DETAILED DESCRIPTION

[0026] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments will be described clearly and completely below in conjunction with the drawings in the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0027] Embodiment one

[0028] See Figures 1-7The embodiment provides a three-plate mold intelligent bucking machine 40 system.

[0029] A lifting device 1 is installed above a mold blank A plate 2 and is used for lifting movement above the mold blank A plate 2;

[0030] A lifting stroke monitoring device 3 is arranged on one side of the lifting device 1 and is used for monitoring the lifting stroke of the lifting device 1 and controlling the lifting movement of the lifting device 1;

[0031] A bucking machine assembly 4 is detachably installed on the upper surfaces of the mold blank A plate 2 and a mold blank B plate 5; the bucking machine assembly 4 is locked with the lifting device 1 when the lifting device 1 is lowered to a preset stroke, so as to lock the mold blank A plate 2 and the mold blank B plate 5; the bucking machine assembly 4 is separated from the locking with the lifting device 1 when the lifting device 1 is lifted to the preset stroke, so as to unlock the mold blank A plate 2 and the mold blank B plate 5.

[0032] In this embodiment, the lifting device 1 is installed above the blank A plate 2 for lifting movement above the blank A plate 2, which can avoid the fatigue and stress relaxation problems of traditional spring steel sheets under high temperature, high load and frequent compression, realize stable and controllable lifting movement, and replace the compression mechanism relying on spring steel sheets to ensure the continuous effectiveness of the mold locking force. The lifting stroke monitoring device 3 is assembled on one side of the lifting device 1 for monitoring the lifting stroke of the lifting device 1 and controlling the lifting movement of the lifting device 1, which can provide real-time state monitoring and regulation capability, solve the problem of lack of monitoring and real-time control of the traditional clamping machine 40, realize accurate control of the lifting stroke, and prevent abnormal impact, friction and wear caused by pre-tightening force decay or uneven locking. The clamping machine assembly 4 is detachably installed on the upper surfaces of the blank A plate 2 and the blank B plate 5; the clamping machine assembly 4 is locked with the lifting device 1 when the lifting device 1 descends to the preset stroke, which locks the blank A plate 2 and the blank B plate 5; the clamping machine assembly 4 is unlocked from the lifting device 1 when the lifting device 1 rises to the preset stroke, which unlocks the blank A plate 2 and the blank B plate 5, which can dynamically adjust the locking state between the blanks, solve the problems of increased fitting gap, reduced positioning accuracy and product cracking caused by insufficient compression force of the traditional structure, realize reliable and uniform locking and unlocking, reduce production interruption, scrap rate and maintenance cost, and improve the operation reliability, production efficiency and service life of the large mold. It should be noted that the clamping machine assembly 4 is detachably installed on the upper surfaces of the blank A plate 2 and the blank B plate 5, and cooperates with the lifting device 1 to complete the locking and unlocking of the blank A plate 2 and the blank B plate 5. During the entire locking process, the clamping machine assembly 4 is in a static state and does not displace the blank A plate 2 and the blank B plate 5, so the movement of the clamping machine assembly 4 can effectively avoid wear on the blank A plate 2 and the blank B plate 5. At the same time, the lifting device 1 does not directly contact the blank A plate 2 and the blank B plate 5, and its lifting movement does not impact the blank A plate 2 and the blank B plate 5, effectively protecting the blank A plate 2 and the blank B plate 5.

[0033] Preferably, the lifting device 1 includes an oil cylinder bracket 10 installed above the blank A plate 2, an oil cylinder mounting plate 11 fixed to the oil cylinder bracket 10, and an oil cylinder main body 12 mounted on the oil cylinder mounting plate 11; part of the structure of the oil cylinder main body 12 passes through the oil cylinder mounting plate 11 and the oil cylinder bracket 10, and is locked or unlocked with the clamping machine assembly 4 to lock or unlock the blank A plate 2 and the blank B plate 5.

[0034] In this embodiment, the lifting device 1 includes a cylinder support 10 installed above the blank A plate 2, a cylinder mounting plate 11 fixed to the cylinder support 10, and a cylinder body 12 mounted on the cylinder mounting plate 11. Part of the structure of the cylinder body 12 passes through the cylinder mounting plate 11 and the cylinder support 10, and is locked or separated from the clamping machine assembly 4. This can solve the problems of uncontrollable driving force, easy attenuation and poor reliability when using traditional spring steel sheets as power sources, and realize the use of hydraulic cylinders as stable, strong and controllable power cores. The cylinder support 10 and the cylinder mounting plate 11 form a solid support frame, ensuring the rigidity and stability of the installation of the cylinder body 12, and can withstand the huge reaction force of more than 1300 tons of mold locking force, avoiding deformation or displacement under high pressure, thereby providing a solid foundation for the entire mold locking process. Part of the structure of the cylinder body 12 (such as the cylinder pull rod 120) directly passes through the cylinder mounting plate 11 and the cylinder support 10, and is locked or separated from the clamping machine assembly 4. This design can achieve the shortest and straightest power transmission path, greatly improve transmission efficiency and accuracy, solve the problem of large cumulative error and delayed response caused by long and multiple power transmission chains, and finally achieve strong, accurate and reliable control of the blank A plate 2 and B plate locking and unlocking action.

[0035] Preferably, the cylinder body 12 includes a cylinder pull rod 120, a cylinder connecting block 121, and a cylinder positioning block 122. The cylinder pull rod 120 passes through the cylinder mounting plate 11 and the cylinder support 10 and is connected with the cylinder connecting block 121, and the cylinder connecting block 121 is connected with the cylinder positioning block 122. The cylinder pull rod 120 reciprocates up and down in the vertical direction, and drives the cylinder positioning block 122 to reciprocate up and down through the cylinder connecting block 121. The clamping machine assembly 4 is locked with the cylinder positioning block 122 when the cylinder positioning block 122 descends to the preset stroke, and the blank A plate 2 and the blank B plate 5 are locked. The clamping machine assembly 4 is separated from the locking of the cylinder positioning block 122 when the cylinder positioning block 122 rises to the preset stroke, and the blank A plate 2 and the blank B plate 5 are unlocked.

[0036] In this embodiment, the oil cylinder body 12 includes an oil cylinder pull rod 120, an oil cylinder connecting block 121, and an oil cylinder positioning block 122; the oil cylinder pull rod 120 is connected with the oil cylinder connecting block 121 through the oil cylinder mounting plate 11 and the oil cylinder support 10, and the oil cylinder connecting block 121 is connected with the oil cylinder positioning block 122; the oil cylinder pull rod 120 reciprocates up and down along the vertical direction, and drives the oil cylinder positioning block 122 to reciprocate up and down through the oil cylinder connecting block 121, so as to solve the problems of different shafts, unbalanced load and unstable movement that may exist in the power transmission process, and realize the modularization of the power element and the high-precision guidance of movement. The strict vertical reciprocating movement of the oil cylinder pull rod 120 as the direct execution component of the oil cylinder is ensured by the mechanical structure. The oil cylinder connecting block 121 plays a key role in connecting the above and the below, and reliably transmits the linear motion of the oil cylinder pull rod 120 to the oil cylinder positioning block 122, while having a certain adjustment and compensation function to ensure the centration between the components. In this embodiment, the oil cylinder positioning block 122 is used as the execution end finally engaged with the locking machine assembly 4. This design separates the power module (oil cylinder pull rod 120) and the locking function module (oil cylinder positioning block 122). The oil cylinder positioning block 122 can be specially optimized (such as adding a wear-resistant coating and a specific geometric shape) according to the interface shape of the locking machine assembly 4, without changing the entire oil cylinder, thereby improving the wear resistance and service life of the system, and also making the replacement and maintenance of the wear parts more convenient and economical.

[0037] Preferably, the locking machine assembly 4 includes a locking machine 40 detachably mounted on the upper surface of the blank B plate 5 through a locking machine positioning block 43, and an A plate positioning block 41 detachably mounted in the A plate positioning groove 20 on the upper surface of the blank A plate 2; part of the structure of the locking machine 40 extends to the upper surface of the A plate positioning block 41 and contacts the A plate positioning block 41; the oil cylinder positioning block 122 moves downward to pass through the locking machine 40 and the A plate positioning block 41, and locks the blank A plate 2 and the blank B plate 5. Specifically, the A plate positioning block 41 is connected with the pin hole in the A plate positioning groove 20 through a countersunk screw 42 to fix the A plate positioning block 41 with the upper surface of the blank A plate 2. Further, when the oil cylinder positioning block 122 moves downward to pass through the locking machine 40 and the A plate positioning block 41 to lock the blank A plate 2 and the blank B plate 5, it also penetrates into the empty limiting groove 201 provided in the A plate positioning groove 20, and the oil cylinder positioning block 122 penetrating into the empty limiting groove 201 does not directly contact the blank A plate 2.

[0038] In this embodiment, the clamping machine assembly 4 includes a clamping machine 40 detachably mounted on the upper surface of the blank B plate 5 through a clamping machine positioning block 43, and an A plate positioning block 41 detachably mounted in the A plate positioning groove 20 on the upper surface of the blank A plate 2; part of the structure of the clamping machine 40 extends to the upper surface of the A plate positioning block 41 and contacts the A plate positioning block 41; the oil cylinder positioning block 122 moves downward through the clamping machine 40 and the A plate positioning block 41, locking the blank A plate 2 and the blank B plate 5, which can solve the problem of uneven distribution of locking force and difficulty in replacing the assembly after wear and tear, and realize the modularization, detachability and optimized distribution of force flow of the clamping machine 40 system. The clamping machine assembly 4 is divided into the clamping machine 40 mounted on the B plate and the A plate positioning block 41 mounted on the A plate, and connected by the oil cylinder positioning block 122 passing through both, which makes the locking force directly and uniformly act on the respective assemblies of the A plate and the B plate through the bridge of the oil cylinder positioning block 122, avoiding single-point stress or stress concentration.

[0039] It should also be noted that in this embodiment, the A plate positioning block 41 is connected with the pin hole in the A plate positioning groove 20 through a countersunk screw 42, which realizes the precise positioning (depending on the pin hole) and firm fixation (depending on the screw) of the A plate positioning block 41, ensuring the accuracy of the position during locking.

[0040] It should also be noted that in this embodiment, the oil cylinder positioning block 122 also penetrates into the empty limiting groove 201 provided in the A plate positioning groove 20 and does not directly contact the blank A plate 2, which is a key design. It creates a micro-clearance fit, allowing the huge locking force to be completely borne by the A plate positioning block 41, and the oil cylinder positioning block 122 has no contact with the mold plate (A plate) itself, fundamentally solving the wear problem between the oil cylinder positioning block 122 and the mold plate caused by direct contact and friction, greatly extending the service life of the mold body and reducing the maintenance cost of the core components.

[0041] Preferably, the oil cylinder positioning block 122 moves upward to separate the buckle machine 40 and the A plate positioning block 41, and unlock the die blank A plate 2 and the die blank B plate 5. In this embodiment, the oil cylinder positioning block 122 moves upward to separate the buckle machine 40 and the A plate positioning block 41, and unlock the die blank A plate 2 and the die blank B plate 5, which can solve the problem of incomplete unlocking or uneven opening force caused by wear and jam, and realize a direct and reliable mechanical separation. The mechanism of this embodiment is clear: the power source (oil cylinder) directly reverses the action, drives the actuator (oil cylinder positioning block 122) to vertically exit from the locking component (buckle machine 40 and A plate positioning block 41) along the precise guide, thereby realizing the complete separation of mechanical connection. This unlocking method based on oil cylinder control has precise control of stroke and speed, ensuring that the locking force between the two plates can be released synchronously, instantaneously and completely every time the mold is opened, effectively avoiding the fatigue rebound of traditional spring structure, preventing the buckle machine assembly 4 and the die blank from being pulled and sliding friction on the die blank side in the initial stage of mold opening, effectively preventing die blank side wear and product tearing phenomenon, and ensuring the stability and repeat accuracy of the mold opening process.

[0042] Preferably, the buckle machine 40 includes a cross-plate buckling part 401 and a B plate buckling part 402; the cross-plate buckling part 401 buckles the upper surface of the A plate positioning block 41 and the upper surface of the die blank B plate 5, and the B plate buckling part 402 buckles the side surface of the die blank B plate 5 to form a locking force in the direction of the die blank A plate 2. Wherein, the cross-plate buckling part 401 can be installed on the upper surface of the die blank B plate 5 by screws.

[0043] In this embodiment, the buckle machine 40 includes a cross-plate buckling part 401 and a B plate buckling part 402; the cross-plate buckling part 401 buckles the upper surface of the A plate positioning block 41 and the upper surface of the die blank B plate 5, and the B plate buckling part 402 buckles the side surface of the die blank B plate 5 to form a locking force in the direction of the die blank A plate 2. Wherein, the cross-plate buckling part 401 can be installed on the upper surface of the die blank B plate 5 by screws.

[0044] It should be noted that the embodiment realizes the composite locking force in the vertical and horizontal directions of the mold plate through the body part of the buckle machine 40, simulates the effect of a similar clamp, makes the connection between the two plates more stable and reliable, and greatly enhances the ability to resist the separation of the mold plate caused by the injection pressure inside the mold. The design of the embodiment ensures uniform distribution of the clamping force, effectively prevents the slight warping or deviation of the mold plate that may be caused by one-way locking, thereby improving the overall rigidity of the mold and the quality consistency of the molded products.

[0045] Preferably, a positioning block limiting through hole 4010 and a positioning block limiting groove 4011 are arranged on the cross-plate buckling part 401, and a buckling part accommodating groove 50 is arranged on the side surface of the blank B plate 5; the positioning block limiting through hole 4010 is used for allowing the oil cylinder positioning block 122 to pass through and limiting the up-down reciprocating movement of the oil cylinder positioning block 122; the positioning block limiting groove 4011 is used for covering the top of the buckle machine positioning block 43 to limit the buckle machine positioning block 43; and the buckling part accommodating groove 50 is used for accommodating the B plate buckling part 402. Further, the buckle machine positioning block 43 is a replaceable wear-resistant structure, a contact surface in the positioning block limiting groove 4011 that contacts the buckle machine positioning block 43 is provided with a hard coating or a wear-resistant insert is embedded in the positioning block limiting groove 4011 to contact the buckle machine positioning block 43; when the positioning block limiting groove 4011 contacts the buckle machine positioning block 43 to conduct the pressing force of the buckle machine 40, the relative positioning surface of the buckle machine 40 and the blank B plate 5 bears the reaction force; the body of the buckle machine 40 and the upper surface of the blank B plate 5 do not form direct frictional contact; and the buckle machine positioning block 43 is fixed on the relative positioning surface of the blank B plate 5 by screws. Further, the bottom of the buckling part accommodating groove 50 includes an outer convex arc surface 501, the bottom surface of the B plate buckling part 402 includes an inner concave arc surface 4020, and when the buckling part accommodating groove 50 accommodates the B plate buckling part 402, the inner concave arc surface 4020 of the B plate buckling part 402 is adapted to cover the outer convex arc surface 501 of the buckling part accommodating groove 50.

[0046] In the embodiment, the positioning block limiting through hole 4010 and the positioning block limiting groove 4011 arranged on the cross-plate buckling part 401 can solve the problems of movement misalignment of the oil cylinder positioning block 122 and poor self-positioning of the buckle machine 40, and realize accurate guidance and stable bearing. The positioning block limiting through hole 4010 provides an accurate movement channel and radial limiting for the oil cylinder positioning block 122, ensuring that it can be accurately inserted into the A plate positioning block 41 every time. The positioning block limiting groove 4011 is used for fixing the buckle machine positioning block 43, thereby indirectly fixing the buckle machine 40 itself firmly on the B plate.

[0047] It should also be noted that in the embodiment, the buckle positioning block 43 is a replaceable wear-resistant structure and adopts a hard coating or wear-resistant insert, which directly concentrates wear on a small and replaceable component, effectively solving the problem of high overall replacement cost and realizing the economy of maintenance. In addition, the relative positioning surface of the buckle positioning block 43 and the B plate 5 bears the reaction force, and the body of the buckle 40 does not form direct frictional contact with the upper surface of the B plate 5. This core design separates the bearing surface from the mounting surface, avoiding wear between the body of the buckle 40 and the B plate, protecting the expensive mold body, and all friction and wear occur on the replaceable wear-resistant block.

[0048] It should also be noted that in the embodiment, the bottom of the buckle pressing part accommodating groove 50 includes an outer convex arc surface 501, and the bottom surface of the B plate buckle pressing part 402 includes an inner concave arc surface 4020, thereby forming an arc surface adaptive design structure. This structure allows the B plate buckle pressing part 402 to have a small self-adjusting range in the accommodating groove, which can better adapt to processing errors or thermal expansion. At the same time, curved surface contact can withstand greater compressive stress and stress distribution is more uniform than flat surface contact, further improving the reliability and service life of the system.

[0049] Preferably, the lifting stroke monitoring device 3 comprises a stroke rod 30 located on one side of the oil cylinder support 10, a connecting rod 31 connected with the stroke rod 30, a positioning block connecting head 32 arranged on the connecting rod 31, and a monitoring head 33 fixed on one side of the oil cylinder support 10; the stroke rod 30 is installed on one side of the oil cylinder mounting plate 11, the stroke rod 30 and the connecting rod 31 are perpendicular to each other and the length direction is vertical, the connecting rod 31 extends towards one side of the oil cylinder body 12, the positioning block connecting head 32 is close to the oil cylinder body 12 and connected with the oil cylinder positioning block 122 of the oil cylinder body 12, and the oil cylinder body 12 moves up and down to drive the stroke rod 30 to move up and down; the stroke rod 30 is fixed with stroke blocks 300 at intervals, the stroke blocks 300 move up and down with the stroke rod 30, and the monitoring head 33 monitors the approaching or moving away state of the stroke blocks 300 and sends a control signal for up and down movement to the oil cylinder body 12.

[0050] In the embodiment, the lifting stroke monitoring device 3 comprises a stroke rod 30 located at one side of the oil cylinder support 10, a connecting rod 31 connected with the stroke rod 30, a positioning block connecting head 32 arranged on the connecting rod 31, and a monitoring head 33 fixed at one side of the oil cylinder support 10; the stroke rod 30 is installed at one side of the oil cylinder mounting plate 11, the positioning block connecting head 32 is close to the oil cylinder body 12 and connected with the oil cylinder positioning block 122 of the oil cylinder body 12, and the oil cylinder body 12 moves up and down to drive the stroke rod 30 to move up and down; a plurality of stroke blocks 300 are fixed on the rod body of the stroke rod 30 at intervals, the stroke blocks 300 move up and down with the stroke rod 30, and the monitoring head 33 monitors the approaching or moving away state of the stroke blocks 300, which can solve the problems of reliability, stability and high cost of the non-contact sensing system in harsh mold working conditions such as high temperature and oil dirt, and realize a stroke monitoring scheme which is firm, durable, strong in anti-interference and low in cost. In the embodiment, a follow-up mechanism (composed of the positioning block connecting head 32, the connecting rod 31 and the stroke rod 30) mechanically rigidly connected with the oil cylinder positioning block 122 is established, so that the displacement of the stroke rod 30 is completely synchronized with the displacement of the oil cylinder positioning block 122, and the absolute authenticity and reliability of the monitoring reference are ensured.

[0051] It should be further noted that in the embodiment, the stroke blocks 300 serve as physical trigger pieces, which are the detected targets and directly reflect the absolute position of the oil cylinder without intermediate conversion. The monitoring head 33 determines whether the oil cylinder reaches two key preset stations (locking position and unlocking position) by detecting the arrival of the stroke blocks 300. This mechanical trigger mechanism has simple structure and low environmental requirements, is not easily affected by typical mold working conditions such as hydraulic oil leakage, metal dust and high temperature, provides high stability and reliability, and is suitable for long-term continuous production in industrial field.

[0052] Preferably, the number of stroke blocks 300 is two, which are defined as upper limit position stroke block 300 and lower limit position stroke block 300 respectively, and correspond to the upper preset stroke and the lower preset stroke of the oil cylinder positioning block 122 respectively; the monitoring head 33 is a contact type stroke switch or a proximity switch; when the upper limit position stroke block 300 moves with the stroke rod 30 to trigger the monitoring head 33, the monitoring head 33 sends a control signal to the oil cylinder body 12 to stop rising or start descending; when the lower limit position stroke block 300 moves with the stroke rod 30 to trigger the monitoring head 33, the monitoring head 33 sends a control signal to the oil cylinder body 12 to stop descending or start rising.

[0053] In this embodiment, the number of the stroke blocks 300 is two, which are defined as the upper limit stroke block 300 and the lower limit stroke block 300, respectively corresponding to the preset upstroke and downstroke of the cylinder positioning block 122; the monitoring head 33 is a contact type stroke switch or a proximity switch; when the upper limit stroke block 300 moves with the stroke rod 30 to trigger the monitoring head 33, the monitoring head 33 sends a control signal to the cylinder body 12 to stop the upstroke or start the downstroke; when the lower limit stroke block 300 moves with the stroke rod 30 to trigger the monitoring head 33, the monitoring head 33 sends a control signal to the cylinder body 12 to stop the downstroke or start the upstroke, which can solve the problem of how to accurately and reliably convert mechanical displacement into control instructions, realize a bidirectional closed-loop control logic based on hard limit, and ensure that the locking and unlocking actions are accurate every time. The two stroke blocks 300 are clearly divided into upper limit and lower limit, respectively corresponding to the two core states of the system, which makes the control logic clear, simple and extremely reliable. The monitoring head 33 is selected as a contact type stroke switch or a proximity switch, which provides flexible options: the contact switch has extremely low cost and is very reliable; the non-contact proximity switch has no wear and longer service life.

[0054] It should also be noted that in this embodiment, not only is it passive to stop at the end position, but it can also actively send a control signal to stop or start the next action. For example, when the upper limit stroke block 300 triggers the monitoring head 33, it not only means that it has been completely unlocked, but the signal sent by the monitoring head 33 can be directly used to stop the upstroke cylinder to prevent overshoot; at the same time, this signal can also be used as a starting condition to start the next mold closing and locking cycle, triggering the cylinder to start the downstroke. Conversely, the lower limit stroke block 300 triggers, which means it has been completely locked and triggers the stop downstroke or start the subsequent process such as pressure holding.

[0055] Embodiment two

[0056] Referring to Figures 1-7The embodiment of the present application also provides a three-plate large mold, which uses the intelligent clamping machine 40 system of the three-plate large mold in any of the above embodiments. In the intelligent clamping machine 40 system, the lifting device 1 is installed above the mold blank A plate 2 and is used for lifting movement above the mold blank A plate 2, which can avoid the fatigue and stress relaxation problems of traditional spring steel sheets under high temperature, high load and frequent compression, realize stable and controllable lifting movement, and thus replace the compression mechanism relying on the spring steel sheet, ensuring the continuous effectiveness of the clamping force. The lifting stroke monitoring device 3 is assembled on one side of the lifting device 1 and is used for monitoring the lifting stroke of the lifting device 1 and controlling the lifting movement of the lifting device 1, which can provide real-time state monitoring and control capability, solve the problem of lack of monitoring and real-time control of the traditional clamping machine 40, realize accurate control of the lifting stroke, and prevent abnormal impact, friction and wear caused by pre-tightening force decay or uneven locking. The clamping machine assembly 4 is detachably installed on the upper surfaces of the mold blank A plate 2 and the mold blank B plate 5; the clamping machine assembly 4 is locked with the lifting device 1 when the lifting device 1 descends to the preset stroke, and the mold blank A plate 2 and the mold blank B plate 5 are locked; the clamping machine assembly 4 is separated from the locking with the lifting device 1 when the lifting device 1 ascends to the preset stroke, and the mold blank A plate 2 and the mold blank B plate 5 are unlocked, which can dynamically adjust the locking state between the mold blanks, solve the problems of increased fitting gap, reduced positioning accuracy and product cracking caused by insufficient compression force of the traditional structure, realize reliable and uniform locking and unlocking, reduce production interruption, waste rate and maintenance cost, and improve the operation reliability, production efficiency and service life of the large mold. It should be noted that the clamping machine assembly 4 is detachably installed on the upper surfaces of the mold blank A plate 2 and the mold blank B plate 5 and cooperates with the lifting device 1 to complete the locking and unlocking of the mold blank A plate 2 and the mold blank B plate 5. During the entire locking process, the clamping machine assembly 4 is in a static state and does not displace the mold blank A plate 2 and the mold blank B plate 5, so that the movement of the clamping machine assembly 4 can effectively avoid the wear of the mold blank A plate 2 and the mold blank B plate 5. At the same time, the lifting device 1 does not directly contact the mold blank A plate 2 and the mold blank B plate 5, and the lifting movement of the lifting device 1 will not impact the mold blank A plate 2 and the mold blank B plate 5, effectively protecting the mold blank A plate 2 and the mold blank B plate 5.

[0057] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An intelligent fastening system for a three-plate mold large mold, characterized in that, include: A lifting device is installed above the mold plate A and is used to perform lifting and lowering movements above the mold plate A. A lifting stroke monitoring device is mounted on one side of the lifting device to monitor the lifting stroke of the lifting device and control the lifting movement of the lifting device. The fastening assembly is detachably installed on the upper surfaces of the mold plate A and the mold plate B; the fastening assembly locks with the lifting device when the lifting device descends to a preset stroke, locking the mold plate A and the mold plate B; the fastening assembly disengages from the lifting device when the lifting device rises to a preset stroke, unlocking the mold plate A and the mold plate B. The lifting device includes a cylinder bracket mounted above mold plate A, a cylinder mounting plate fixed to the cylinder bracket, and a cylinder body mounted on the cylinder mounting plate. A portion of the cylinder body passes through the cylinder mounting plate and the cylinder bracket, and is locked or disengaged from the locking assembly to lock or unlock mold plates A and B. The cylinder body includes a cylinder rod, a cylinder connecting block, and a cylinder positioning block. The cylinder rod passes through the cylinder mounting plate and the cylinder bracket and connects to the cylinder connecting block. The cylinder connecting block is connected to the cylinder positioning block; the cylinder rod moves up and down vertically, driving the cylinder positioning block to move up and down via the cylinder connecting block; the locking assembly engages with the cylinder positioning block when it descends to a preset stroke, locking mold plate A and mold plate B; the locking assembly disengages from the cylinder positioning block when it rises to a preset stroke, unlocking mold plate A and mold plate B; the locking assembly includes a locking mechanism that is detachably mounted to the upper surface of mold plate B via the locking positioning block. The A-plate positioning block, installed in the A-plate positioning groove on the upper surface of mold plate A, is dismounted; a portion of the fastening mechanism extends to the upper surface of the A-plate positioning block and contacts it; the hydraulic cylinder positioning block moves downward through the fastening mechanism and the A-plate positioning block, locking mold plate A and mold plate B; the hydraulic cylinder positioning block moves upward to disengage from the fastening mechanism and the A-plate positioning block, unlocking mold plate A and mold plate B; the fastening mechanism includes an inter-plate fastening part and a B-plate fastening part; the inter-plate fastening part fastens the upper surface of the A-plate positioning block and the upper surface of the mold plate B. On the B plate, the clamping part clamps the side of the mold blank B plate to form a locking force towards the mold blank A plate; the clamping part between the plates is provided with a positioning block limiting through hole and a positioning block limiting groove, and the side of the mold blank B plate is provided with a clamping part receiving groove; the positioning block limiting through hole is used to allow the hydraulic cylinder positioning block to pass through and limit the up and down reciprocating motion of the hydraulic cylinder positioning block; the positioning block limiting groove is used to cover the top of the clamping machine positioning block to limit the clamping machine positioning block; the clamping part receiving groove is used to accommodate the B plate clamping part.

2. The intelligent fastening system for a three-plate mold large mold as described in claim 1, characterized in that, The lifting stroke monitoring device includes a stroke rod located on one side of the cylinder bracket, a connecting rod connected to the stroke rod, a positioning block connector set on the connecting rod, and a monitoring head fixed on one side of the cylinder bracket. The stroke rod is installed on one side of the cylinder mounting plate, and the stroke rod and the connecting rod intersect perpendicularly with the length direction of the stroke rod being vertical. The connecting rod extends towards one side of the cylinder body. The positioning block connector is close to the cylinder body and connected to the cylinder positioning block of the cylinder body. When the cylinder body moves up and down, it drives the stroke rod to move up and down. Stroke blocks are fixed at intervals on the stroke rod. The stroke blocks move up and down with the stroke rod. The monitoring head monitors the approach or departure of the stroke blocks and sends a control signal for up and down movement to the cylinder body.

3. The intelligent fastening system for a three-plate mold large mold as described in claim 2, characterized in that, The number of stroke blocks is two, defined as the upper limit stroke block and the lower limit stroke block, respectively corresponding to the preset upward stroke and preset downward stroke of the cylinder positioning block; the monitoring head is a contact limit switch or proximity switch; when the upper limit stroke block moves with the stroke rod to trigger the monitoring head, the monitoring head sends a control signal to the cylinder body to stop rising or start falling; when the lower limit stroke block moves with the stroke rod to trigger the monitoring head, the monitoring head sends a control signal to the cylinder body to stop falling or start rising.

4. A three-plate mold, characterized in that, The three-plate mold large mold uses the intelligent fastening system for the three-plate mold large mold as described in any one of claims 1-3.

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