Connecting rod linked two-plate type mold locking device

Abstract

The utility model discloses a two-plate type mold locking device linked by a connecting rod. The two-plate type mold locking device comprises a swing frame base, a first mold locking plate, a second mold locking plate, a mold locking connecting rod assembly and a mold opening and closing assembly, the mold opening and closing assembly comprises a first chain transmission part, a second chain transmission part, a first gear and rack transmission part, a second gear and rack transmission part and a mold opening and closing power source. The chain transmission part and the gear rack transmission part are arranged, so that when the mold opening and closing power source drives the mold locking plate to perform opening and closing actions, the mold locking connecting rod assembly performs lifting motion at the same time, in a mold opening state, the mold locking connecting rod assembly is located at a low position, and a mold is convenient to assemble and disassemble; the mold locking connecting rod assembly and the high-pressure mold locking power source are located at the same horizontal height, so that the blank is prevented from being blocked when the blank is received, the two mold locking plates and the mold locking connecting rod assembly form a frame type structure at the moment, and the mold locking plates are stressed in a balanced mode.

Description

Technical Field

[0001] The utility model relates to the technical field of mold clamping equipment, in particular to a two-plate mold clamping device with link linkage. Background Technique

[0002] As the core component of an extrusion blow molding hollow forming machine, the mold clamping and locking device is mainly used to control the opening and closing of the mold and realize the high-pressure mold clamping function. At present, the common mold clamping and locking devices usually complete the mold opening and closing and mold clamping actions through a single power source. However, in order to achieve the required mold opening and closing speed and mold clamping force, it can only be achieved by increasing the power of the power system, resulting in an increase in production energy consumption to meet production requirements. With the continuous improvement of the market's requirements for the production speed of extrusion blow molding hollow forming machines and the urgent need to reduce equipment energy consumption, how to effectively control energy consumption while ensuring fast mold opening and closing and high-pressure mold clamping has become a key technical problem to be solved urgently.

[0003] In addition, when producing large products, the mold clamping and locking device faces more complex challenges. How to ensure the strength of the mold clamping plate while ensuring a large enough mold clamping force and reducing the weight of moving parts as much as possible has become a major contradiction and problem in the design of the mold clamping structure. Content of the Utility Model

[0004] The purpose of the utility model is to provide a two-plate mold clamping device with link linkage to solve one or more technical problems in the above background technique.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A two-plate mold clamping device with link linkage includes a swing frame base, a first mold clamping plate, a second mold clamping plate, a mold clamping link assembly, and a mold opening and closing assembly. The first mold clamping plate and the second mold clamping plate are arranged front and back on the swing frame base and are slidably matched with the swing frame base. Both ends of the mold clamping link assembly are connected to the first mold clamping plate and the second mold clamping plate for lifting and sliding connection.

[0007] The mold opening and closing assembly includes a first chain drive component, a second chain drive component, a first gear-rack drive component, a second gear-rack drive component, and a mold opening and closing power source. The mold opening and closing power source is fixed to the bottom of the first lock template. The first gear-rack drive component and the second gear-rack drive component are arranged front and back on the swing frame base. The output end of the mold opening and closing power source is connected to the gear end of the first gear-rack drive component and the driving wheel of the first chain drive component. The chain part of the first chain drive component is slidably connected to the first lock template up and down. The gear end of the second gear-rack drive component is connected to the driven wheel of the second chain drive component. The chain part of the second chain drive component is slidably connected to the second lock template up and down;

[0008] During the mold opening and closing operation, the mold opening and closing power source drives the first gear-rack drive component and the first synchronous chain drive component to act. Under the action of the first gear-rack drive component and the first synchronous chain drive component, the first lock template slides on the swing frame base closer to or away from the second lock template. At the same time, the mold locking link assembly moves up and down along the first lock template, and the up and down movement of the mold locking link assembly drives the second gear-rack drive component and the second synchronous chain drive component to act, so that the mold locking link assembly always maintains a horizontal state during the up and down movement, and drives the second lock template to slide synchronously on the swing frame base closer to or away from the second lock template. Until the first lock template and the second lock template move to the required mold closing distance, the mold opening and closing power source stops working.

[0009] Preferably, it further includes a high-pressure mold locking component, which is arranged on the second lock template and is used to provide a mold locking pressure to one end of the mold locking link assembly;

[0010] During high-pressure mold locking, after the mold closing operation is in place, the high-pressure mold locking component provides power and acts on one end of the mold locking link assembly, so that the first lock template and the second lock template achieve high-pressure mold locking through force and reaction force. During this process, the mold opening and closing power source remains closed.

[0011] Preferably, the mold locking link assembly includes a horizontal link, a first lifting frame, a second lifting frame, and a swing plate. The first lifting frame and the second lifting frame are respectively slidably matched with the first lock template and the second lock template up and down. One end of the swing plate is hinged to the first lock template, and both ends of the horizontal link are respectively hinged to the swing plate and the second lifting frame.

[0012] Preferably, the mold clamping link assembly further includes a first connecting plate and a second connecting plate. The first connecting plate and the second connecting plate are respectively fixedly connected to both ends of the horizontal link. The first connecting plate and the second connecting plate are respectively hinged to the first lifting frame and the second lifting frame.

[0013] Preferably, the mold clamping link assembly further includes a plurality of limit screws. The plurality of limit screws are arranged vertically on the first lifting frame. The upper and lower sides of the horizontal link are respectively abutted against the plurality of limit screws.

[0014] Preferably, the high-pressure mold clamping assembly includes a high-pressure mold clamping power source, a first transmission shaft and a second transmission shaft. The first transmission shaft is in rotational cooperation with the first connecting plate. The second transmission shaft is in rotational cooperation with the second connecting plate. The first connecting plate is hinged to the swing plate through the first transmission shaft. The second connecting plate is hinged to the second lifting frame through the second transmission shaft. An eccentric mold clamping shoulder is provided on the second transmission shaft. The output end of the high-pressure mold clamping power source is connected to the end of the second transmission shaft. The mold clamping shoulder cooperates with the second connecting plate.

[0015] Preferably, a limit pin is provided on the first mold plate. The limit pin is located above the swing plate. When the limit pin abuts against the swing plate, the mold closing action of the first mold plate and the second mold plate is in place.

[0016] Preferably, the first chain transmission component includes a first driving sprocket, a first driven sprocket and a first synchronous chain. The first driving sprocket is connected to the output end of the mold opening and closing power source. The first driven sprocket is rotatably connected to the first mold plate. The first synchronous chain meshes with the first driving sprocket and the first driven sprocket. One side of the first synchronous chain is connected to the first lifting frame;

[0017] The second chain transmission component includes a second driving sprocket, a second driven sprocket and a second synchronous chain,

[0018] One side of the second synchronous chain is connected to the second lifting frame. The second driving sprocket is rotatably connected to the second mold plate. The second synchronous chain meshes with the second driving sprocket and the second driving sprocket;

[0019] The first gear-rack transmission component includes a first fixed inclined rack and a first helical gear. The first fixed inclined rack is arranged on the swing frame base along the mold opening and closing direction. The first helical gear meshes with the first fixed inclined rack. The first helical gear is connected to the output end of the mold opening and closing power source;

[0020] The second gear-rack transmission component includes a second fixed inclined rack and a second helical gear. The second fixed inclined rack is arranged in parallel with the first fixed inclined rack. The second helical gear meshes with the second fixed inclined rack, and the second helical gear is connected to the second driven sprocket.

[0021] Preferably, it further includes a first linear guide rail, a second linear guide rail, a first lifting guide rail, and a second lifting guide rail. The first linear guide rail and the second linear guide rail are parallel to each other and arranged on the swing frame base. The sliders of the first linear guide rail and the second linear guide rail are respectively connected to the bottoms of the first lock template and the second lock template. The first lifting guide rail and the second lifting guide rail are respectively arranged vertically on one side of the first lock template and the second lock template. The sliders of the first lifting guide rail and the second lifting guide rail are respectively connected to the first lifting frame and the second lifting frame.

[0022] Preferably, both the mold opening and closing power source and the high-pressure mold clamping power source are servo motors.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting the chain transmission component and the gear-rack transmission component, when the mold opening and closing power source drives the lock templates to perform mold opening and closing actions, the mold clamping link assembly simultaneously performs lifting motion. When in the mold opening state, the mold clamping link assembly is in a low position, which is convenient for installing and disassembling the mold. When in the mold closing and high-pressure mold clamping states, the mold clamping link assembly and the high-pressure mold clamping power source are at the same horizontal height, which not only avoids blocking the blank during blank receiving, but also forms a frame structure between the two lock templates and the mold clamping link assembly at this time, making the lock templates receive balanced force and have small deformation. Moreover, the moving parts are light in weight, reducing energy consumption. In addition, the mold opening and closing actions and the high-pressure mold clamping action are respectively realized by the mold opening and closing power source and the high-pressure mold clamping power source, reducing energy consumption. Separating the mold opening and closing power source from the high-pressure mold clamping power source can achieve rapid mold opening and closing with a smaller power, and ensure high-pressure mold clamping with a larger power. Description of the Drawings

[0024] The drawings further illustrate the present utility model, but the content in the drawings does not constitute any limitation to the present utility model.

[0025] Figure 1 It is a schematic structural diagram of the mold clamping device in the mold closing state of one embodiment of the present utility model;

[0026] Figure 2 It is a schematic structural diagram of the first lock template of one embodiment of the present utility model;

[0027] Figure 3 It is a schematic structural diagram of the second lock template of one embodiment of the present utility model;

[0028] Figure 4 It is a schematic diagram of the shaft end of the second transmission shaft in one embodiment of the present utility model.

[0029] Wherein: swing frame base 1, first clamping template 2, second clamping template 3, clamping link assembly 4, mold opening and closing assembly 5, first chain drive component 51, second chain drive component 52, first gear-rack drive component 53, second gear-rack drive component 54, mold opening and closing power source 55, high-pressure clamping assembly 6, horizontal link 41, first lifting frame 42, second lifting frame 43, swing plate 44, first connecting plate 411, second connecting plate 412, limit screw 413, high-pressure clamping power source 61, first transmission shaft 62, second transmission shaft 63, clamping shaft shoulder 631, limit pin 441, first driving sprocket 511, first driven sprocket 512, first synchronous chain 513, second driving sprocket 521, second driven sprocket 522, second synchronous chain 523, first fixed inclined rack 531, first helical gear 532, second fixed inclined rack 541, second helical gear 542, first linear guide 21, second linear guide 31, first lifting guide 22, second lifting guide 32, synchronous motion assembly 7. Specific embodiments

[0030] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0031] A two-platen clamping device with link linkage in this embodiment, referring to the attached Figures 1-3 , includes a swing frame base 1, a first clamping template 2, a second clamping template 3, a clamping link assembly and a mold opening and closing assembly. The first clamping template 2 and the second clamping template 3 are arranged front and back on the swing frame base 1 and are slidably matched with the swing frame base 1. The two ends of the clamping link assembly are respectively connected to the first clamping template 2 and the second clamping template 3 for lifting and sliding connection;

[0032] The mold opening and closing assembly includes a first chain drive component 51, a second chain drive component 52, a first gear-rack drive component 53, a second gear-rack drive component 54 and a mold opening and closing power source 55. The mold opening and closing power source 55 is fixed at the bottom of the first clamping template 2. The first gear-rack drive component 53 and the second gear-rack drive component 54 are arranged front and back on the swing frame base 1. The output end of the mold opening and closing power source 55 is connected to the gear end of the first gear-rack drive component 53 and the driving wheel of the first chain drive component 51. The chain part of the first chain drive component 51 is connected to the first clamping template 2 for up and down sliding connection. The gear end of the second gear-rack drive component 54 is connected to the driven wheel of the second chain drive component 52. The chain part of the second chain drive component 52 is connected to the second clamping template 3 for up and down sliding connection;

[0033] During the mold opening and closing operation, the mold opening and closing power source 55 drives the gear part of the first gear-rack transmission component 53 and the driving wheel of the first synchronous chain transmission component to rotate forward or backward, causing the first gear-rack transmission component 53 to output a linear motion to drive the first locking template 2 to slide closer to or away from the second locking template 3 on the swing frame seat. At the same time, the rack part of the first synchronous chain transmission component drives the mold locking link assembly to move up and down along the first locking template 2. The up and down movement of the mold locking link assembly drives the chain part of the second synchronous chain transmission component to act, causing the driven wheel of the second synchronous chain transmission component and the gear end of the second gear-rack transmission component 54 to rotate, so that the second gear-rack transmission component 54 outputs a linear motion to drive the second locking template 3 to slide synchronously closer to or away from the second locking template 3 on the swing frame seat. Until the first locking template 2 and the second locking template 3 move to the required mold closing distance, the mold opening and closing power source 55 stops working. The mold locking link assembly always maintains a horizontal state during the up and down movement.

[0034] Preferably, it further includes a high-pressure mold locking assembly 6. The high-pressure mold locking assembly 6 is arranged on the second locking template 3 and is used to provide a mold locking pressure to one end of the mold locking link assembly;

[0035] The high-pressure mold locking needs to be carried out after the mold closing operation is in place. After the mold closing operation is in place, the high-pressure mold locking power source 61 provides power and acts on one end of the mold locking link assembly, so that the first locking template 2 and the second locking template 3 achieve high-pressure mold locking through the action and reaction forces. During this process, the mold opening and closing power source 55 remains closed. Thus, after the mold closing is in place, through the high-pressure mold locking action, the mold locking force is transmitted to the first locking template 2 and the second locking template 3 through the mold locking link assembly, realizing high-pressure mold locking. Furthermore, the mold opening and closing power source 55 and the high-pressure mold locking power source 61 respectively realize the actions of opening and closing the locking template and high-pressure mold locking, reducing the production energy consumption.

[0036] Preferably, the mold locking link assembly includes a horizontal link 41, a first lifting frame 42, a second lifting frame 43, and a swing plate 44. The first lifting frame 42 and the second lifting frame 43 are respectively in sliding fit with the first locking template 2 and the second locking template 3 up and down. One end of the swing plate 44 is hinged to the first locking template 2, and both ends of the horizontal link 41 are respectively hinged to the swing plate 44 and the second lifting frame 43. Thus,

[0037] Further, the die-locking link assembly further includes a first connecting plate 411 and a second connecting plate 412. The first connecting plate 411 and the second connecting plate 412 are respectively fixedly connected to both ends of the horizontal link 41. The first connecting plate 411 and the second connecting plate 412 are respectively hinged to the first lifting frame 42 and the second lifting frame 43. By providing the first connecting plate 411 and the second connecting plate 412, the horizontal link 41 is hinged to the swing plate 44 and the second lifting frame 43 through the first connecting plate 411 and the second connecting plate 412. Thus, when the first die-locking plate 2 moves, the swing plate 44 swings, realizing the synchronous lifting of the first lifting frame 42 and the second lifting frame 43, and further driving the second die-locking plate 3 to perform synchronous die-locking and die-opening movements; it is also convenient for the die-locking pressure to be transmitted to the horizontal link 41 through the second connecting plate 412 during high-pressure die-locking to meet the requirements of high-pressure die-locking.

[0038] Further, the die-locking link assembly further includes a plurality of limit screws 413. The plurality of limit screws 413 are arranged up and down on the first lifting frame 42, and the upper and lower sides of the horizontal link 41 are respectively abutted against the plurality of limit screws 413. Thus, by keeping the upper and lower sides of the horizontal link 41 in contact with the plurality of limit screws 413, the limit of the horizontal link 41 is realized, ensuring that the horizontal link 41 remains horizontal during the lifting movement.

[0039] Preferably, the high-pressure die-locking assembly 6 includes a high-pressure die-locking power source 61, a first transmission shaft 62, and a second transmission shaft 63. The first transmission shaft 62 is rotationally matched with the first connecting plate 411, and the second transmission shaft 63 is rotationally matched with the second connecting plate 412. The first connecting plate 411 is hinged to the swing plate 44 through the first transmission shaft 62, and the second connecting plate 412 is hinged to the second lifting frame 43 through the second transmission shaft 63. Refer to the attached Figure 4 , an eccentrically arranged die-locking shoulder 631 is provided on the second transmission shaft 63. The output end of the high-pressure die-locking power source 61 is connected to the end of the second transmission shaft 63, and the die-locking shoulder 631 cooperates with the second connecting plate 412. By providing the first transmission shaft 62 and the second transmission shaft 63, the first transmission shaft 62, the second transmission shaft 63, and the two horizontal links 41 form a frame structure, making the forces on the first die-locking plate 2 and the second die-locking plate 3 more balanced and avoiding deformation; moreover, the moving parts such as the first die-locking plate 2, the second die-locking plate 3, and the die-locking link assembly are lighter in weight, reducing the energy consumption required for the movement.

[0040] Preferably, a limit pin 441 is provided on the first lock template 2. The limit pin 441 is located above the swing plate 44. When the limit pin 441 abuts against the swing plate 44, the mold clamping action of the first lock template 2 and the second lock template 3 is in place. Thus, by setting the limit pin 441, the limit of the mold clamping link assembly is realized. When the connecting plate touches the limit pin 441, the first lock template 2 and the second lock template 3 are in the mold clamping position, and the mold clamping link assembly and the high-pressure mold clamping power source 61 are at the same horizontal height.

[0041] Preferably, the first gear-rack transmission component 53 includes a first fixed rack 531 and a first helical gear. The first fixed rack 531 is arranged on the swing frame base 1 along the mold opening and closing direction. The first helical gear meshes with the first fixed rack 531, and the first helical gear is connected to the output end of the mold opening and closing power source 55. By connecting the first driving sprocket 511 to the output end of the mold opening and closing power source 55, during the mold opening and closing process, the mold opening and closing power source 55 drives the first helical gear to mesh and transmit with the first fixed rack 531. Under the action of the first fixed rack 531, the first fixed helical gear makes a linear motion, and drives the first lock template 2 to make a linear motion approaching or departing from the second lock template 3, completing the mold opening and closing action.

[0042] The first chain transmission component 51 includes a first driving sprocket 511, a first driven sprocket 512 and a first synchronous chain 513. The first driving sprocket 511 is connected to the output end of the mold opening and closing power source 55. The first driven sprocket 512 is rotatably connected to the first lock template 2. The first synchronous chain 513 meshes with the first driving sprocket 511 and the first driven sprocket 512. One side of the first synchronous chain 513 is connected to the first lifting frame 42. By connecting the first driving sprocket 511 to the output end of the mold opening and closing power source 55, the mold opening and closing power source 55 drives the first driving sprocket 511 to rotate while driving the first helical gear to rotate. Under the meshing transmission of the first driving sprocket 511 and the first synchronous chain 513, the first lifting frame 42 connected to the first synchronous chain 513 makes a lifting motion.

[0043] The second chain transmission component 52 includes a second driving sprocket 521, a second driven sprocket 522 and a second synchronous chain 523.

[0044] One side of the second synchronous chain 523 is connected to the second lifting frame 43. The second driving sprocket 521 is rotatably connected to the second lock template 3. The second synchronous chain 523 meshes with the second driving sprocket 521 and the second driven sprocket 521. By connecting the second synchronous chain 523 to the second lifting frame 43, while the first lifting frame 42 makes a lifting motion, the second lifting frame 43 is driven to lift synchronously through the horizontal connecting rod 41, so that the second synchronous chain 523 meshes and transmits with the second driven sprocket 522, converting the lifting motion into the rotational motion of the second driven sprocket 522.

[0045] The second gear-rack transmission component 54 includes a second fixed inclined rack 541 and a second helical gear 542532. The second fixed inclined rack 541 is arranged in parallel with the first fixed inclined rack 531. The second helical gear 542532 meshes with the second fixed inclined rack 541, and the second helical gear 542532 is connected to the second driven sprocket 522. By connecting the second helical gear 542532 to the second driven sprocket 522, the rotational motion of the second driven sprocket 522 drives the rotational motion of the second helical gear 542532, enabling the second helical gear 542532 to mesh with the second fixed inclined rack 541 for transmission, and driving the second locking template 3 and the first locking template 2 to perform a linear motion of approaching or separating synchronously, thus completing the mold opening and closing actions.

[0046] Preferably, it further includes a first linear guide rail 21, a second linear guide rail 31, a first lifting guide rail 22, and a second lifting guide rail 32. The first linear guide rail 21 and the second linear guide rail 31 are parallel to each other and arranged on the swing frame base 1. The sliders of the first linear guide rail 21 and the second linear guide rail 31 are respectively connected to the bottoms of the first locking template 2 and the second locking template 3. The first lifting guide rail 22 and the second lifting guide rail 32 are respectively vertically arranged on one side of the first locking template 2 and the second locking template 3. The sliders of the first lifting guide rail 22 and the second lifting guide rail 32 are respectively connected to the first lifting frame 42 and the second lifting frame 43. By providing the first linear guide rail 21 and the second linear guide rail 31, a sliding connection between the first locking template 2 and the second locking template 3 and the swing frame base 1 is achieved. By providing the first lifting guide rail 22 and the second lifting guide rail 32, a lifting and sliding fit between the first lifting frame 42 and the first locking template 2, and a lifting and sliding fit between the second lifting frame 43 and the second locking template 3 are achieved.

[0047] Preferably, both the mold opening and closing power source 55 and the high-pressure mold locking power source 61 are servo motors. Using servo motors as the mold opening and closing power source 55 and the high-pressure mold locking power source 61 enables the speeds of mold opening and closing and the mold locking force of high-pressure mold locking to be adjustable to meet different production requirements.

[0048] Preferably, it further includes a synchronous motion component 7. The synchronous motion component 7 is used to enable the first locking template 2 and the second locking template 3 to perform synchronous approaching or reverse synchronous motion on the swing frame base 1. The synchronous motion component 7 plays a guiding role in the motion of the first locking template 2 and the second locking template 3. The synchronous motion component 7 includes a first synchronous rack, a second synchronous rack, and a synchronous gear. The first synchronous rack and the second synchronous rack are parallel and respectively arranged on the first locking template 2 and the second locking template 3. The synchronous gear is arranged in the middle of the swing frame base 1. Both the first synchronous rack and the second synchronous rack mesh with the synchronous gear. The first synchronous rack and the second synchronous rack are respectively located on the upper and lower sides of the synchronous gear and both mesh with the synchronous gear, so that the moving distances of the first locking template 2 and the second locking template 3 are the same.

[0049] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A two-plate clamping device with connecting rod linkage, characterized in that: It includes a swing frame base, a first locking plate, a second locking plate, a locking rod assembly and a mold opening and closing assembly. The first locking plate and the second locking plate are arranged on the swing frame base front and back and slidably cooperate with the swing frame base. The two ends of the locking rod assembly are respectively connected to the first locking plate and the second locking plate in a lifting and sliding manner. The mold opening and closing assembly comprises a first chain transmission component, a second chain transmission component, a first gear rack transmission component, a second gear rack transmission component and a mold opening and closing power source, the mold opening and closing power source is fixed to the bottom of the first locking plate, the first gear rack transmission component and the second gear rack transmission component are arranged on the swing frame base front and back, the output end of the mold opening and closing power source is connected to the gear end of the first gear rack transmission component and the driving wheel of the first chain transmission component, the chain part of the first chain transmission component is connected to the first locking plate in an up-and-down sliding manner, the gear end of the second gear rack transmission component is connected to the driven wheel of the second chain transmission component, and the chain part of the second chain transmission component is connected to the second locking plate in an up-and-down sliding manner; During mold opening and closing, the mold opening and closing power source drives the first gear rack transmission component and the first synchronous chain transmission component to move. Under the action of the first gear rack transmission component and the first synchronous chain transmission component, the first locking plate slides on the swing frame seat close to or away from the second locking plate. At the same time, the locking rod assembly moves up and down along the first locking plate, and the lifting and lowering movement of the locking rod assembly drives the second gear rack transmission component and the second synchronous chain transmission component to move, so that the locking rod assembly always maintains a horizontal state during the lifting and lowering movement, and drives the second locking plate to slide synchronously on the swing frame seat close to or away from the second locking plate. Until the first locking plate and the second locking plate move to the required clamping distance, the mold opening and closing power source stops working.

2. A two-plate clamping device with connecting rod linkage according to claim 1, characterized in that: It also includes a high-pressure mold locking assembly, which is arranged on the second mold locking plate and is used to provide mold locking pressure to one end of the mold locking connecting rod assembly; During high-pressure mold locking, after the mold closing action is in place, the high-pressure mold locking assembly provides power to act on one end of the mold locking connecting rod assembly, so that the first locking plate and the second locking plate achieve high-pressure mold locking through force and reaction force. During this process, the mold opening and closing power source remains closed.

3. A two-plate clamping device with connecting rod linkage according to claim 2, characterized in that: The locking mold connecting rod assembly includes a horizontal connecting rod, a first lifting frame, a second lifting frame, and a swing plate. The first lifting frame and the second lifting frame are respectively slidably matched with the first locking mold plate and the second locking mold plate. One end of the swing plate is hinged to the first locking mold plate, and both ends of the horizontal connecting rod are respectively hinged to the swing plate and the second lifting frame.

4. A two-platen mold clamping device with connecting rod linkage according to claim 3, characterized in that: The clamping connecting rod assembly also includes a first connecting plate and a second connecting plate, wherein the first connecting plate and the second connecting plate are respectively fixedly connected to two ends of the horizontal connecting rod, and the first connecting plate and the second connecting plate are respectively hinged to the first lifting frame and the second lifting frame.

5. The connecting rod-linked two-plate clamping device according to claim 3 is characterized in that: The mold locking connecting rod assembly also includes a plurality of limit screws, which are arranged up and down on the first lifting frame, and the upper and lower sides of the horizontal connecting rod are respectively against the plurality of limit screws.

6. The connecting rod-linked two-plate clamping device according to claim 4, characterized in that: The high-pressure mold locking assembly includes a high-pressure mold locking power source, a first transmission shaft and a second transmission shaft, the first transmission shaft is rotationally matched with the first connecting plate, the second transmission shaft is rotationally matched with the second connecting plate, the first connecting plate is hinged to the swing plate through the first transmission shaft, the second connecting plate is hinged to the second lifting frame through the second transmission shaft, an eccentrically arranged mold locking shoulder is provided on the second transmission shaft, the output end of the high-pressure mold locking power source is connected to the end of the second transmission shaft, and the mold locking shoulder is matched with the second connecting plate.

7. The connecting rod-linked two-plate clamping device according to claim 3 is characterized in that: A limit pin is provided on the first locking template, and the limit pin is located above the swing plate. When the limit pin abuts against the swing plate, the first locking template and the second locking template are molded into place.

8. The connecting rod-linked two-plate clamping device according to claim 3 is characterized in that: The first chain transmission component includes a first driving sprocket, a first driven sprocket and a first synchronous chain, the first driving sprocket is connected to the output end of the mold opening and closing power source, the first driven sprocket is rotatably connected to the first locking plate, the first synchronous chain is meshed with the first driving sprocket and the first driven sprocket, and one side of the first synchronous chain is connected to the first lifting frame; The second chain transmission component includes a second driving sprocket, a second driven sprocket and a second synchronous chain. One side of the second synchronous chain is connected to the second lifting frame, the second driving sprocket is rotatably connected to the second locking plate, and the second synchronous chain is meshed with the second driving sprocket and the second driving sprocket; The first gear rack transmission component includes a first fixed helical rack and a first helical gear, the first fixed helical rack is arranged on the swing frame base along the mold opening and closing direction, the first helical gear is meshed with the first fixed helical rack, and the first helical gear is connected to the output end of the mold opening and closing power source; The second rack and pinion transmission component includes a second fixed helical rack and a second helical gear, the second fixed helical rack is arranged parallel to the first fixed helical rack, the second helical gear is meshed with the second fixed helical rack, and the second helical gear is connected to the second driven sprocket.

9. The connecting rod-linked two-plate clamping device according to claim 3, characterized in that: It also includes a first linear guide, a second linear guide, a first lifting guide and a second lifting guide. The first linear guide and the second linear guide are parallel to each other and are arranged on the swing frame base. The slider of the first linear guide and the slider of the second linear guide are respectively connected to the bottom of the first locking template and the second locking template; the first lifting guide and the second lifting guide are respectively vertically arranged on one side of the first locking template and the second locking template, and the slider of the first lifting guide and the slider of the second lifting guide are respectively connected to the first lifting frame and the second lifting frame.

10. The connecting rod-linked two-plate clamping device according to claim 2, characterized in that: The mold opening and closing power source and the high-pressure mold locking power source are both servo motors.

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