A pedal lifting mechanism for a locking area of an injection molding machine and an injection molding machine

Abstract

A kind of pedal lifting mechanism for injection molding machine locking area, including fixed base, pedal support, movable pedal connected in turn, and first force component, second force component, first signal device, second signal device and third signal device, fourth signal device installed on the fixed base, first force component can push pedal support movable pedal and drive to carry out lifting movement, second force component can limit the height of pedal support and lock movable pedal;In addition, an injection molding machine is provided, including machine body, door component and the pedal lifting mechanism, door component is installed on the both sides of machine body, and pedal lifting mechanism is installed on door component.The linkage of lifting movable pedal and door is monitored and responded immediately, without affecting mold opening and closing, eliminate the problem of height difference between pedal when operating personnel work in operating area, realize safe production, and protect the personal safety of operating personnel.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine clamping equipment, specifically to a pedal lifting mechanism for the clamping area of ​​an injection molding machine and an injection molding machine. Background Technology

[0002] Injection molding machines, as crucial equipment in the processing industry, possess complex structures and diverse functions. The clamping mechanism of an injection molding machine is responsible for ensuring the smooth closing and opening of the mold and the ejection of the product. Currently, most clamping mechanisms present safety issues. Considering space constraints, the enclosure of the clamping mechanism needs to be minimized, resulting in a compact interior space. Consequently, the operating platform for the operator is located within this enclosed area. Existing injection molding machine clamping equipment generally has a height difference between the safety platform within the operating area and the front door of the injection molding machine, easily leading to risks such as falls, bumps, pinching, and cuts. Therefore, there is an urgent need for an injection molding machine clamping mechanism that can prevent these safety risks.

[0003] Patent CN110862048B discloses a lifting and transporting machine, including a mobile chassis, a scissor-fork lifting frame mounted on the mobile chassis, a hydraulic cylinder driving the scissor fork of the lifting frame inside the lifting frame, a lifting platform at the top of the lifting frame, foot platforms on both sides of the mobile chassis, pneumatic rods at the bottom of the foot platforms, and two sets of guide devices at the bottom of the mobile chassis, which move along a single set of guide rails laid on the ground. This device provides a pedal lifting mechanism, but it has a low degree of automation, cannot monitor the position of the linkage and pedals in real time, and has a slow response speed and low safety if used as a safety device. Utility Model Content

[0004] This utility model addresses the safety risks of falls, bumps, pinching, and cuts caused by the height difference between the safety pedal and the front door of the injection molding machine in the operating area of ​​the injection molding machine's locking equipment. It provides a pedal lifting mechanism and control system for the injection molding machine's locking area, which features high automation, real-time monitoring, and real-time response. It can control the status of the safety pedal and the injection molding machine door in real time according to the working conditions, ensuring the personal safety of the operators.

[0005] In a first aspect, this utility model provides a pedal lifting mechanism for the mold clamping area of ​​an injection molding machine. The pedal lifting mechanism, installed within the mold clamping area, includes a fixed base, a movable pedal, a pedal bracket, a first force-applying component, and a second force-applying component. The fixed base, pedal bracket, and movable pedal are connected sequentially. Both the first and second force-applying components are mounted on the fixed base. The first force-applying component includes a push rod device, one end of which is mounted on the fixed base, and the other end of which is connected to the pedal bracket. The push rod device can push the pedal bracket to drive the movable pedal to move up and down. The second force-applying component includes a pin head and a power source connected sequentially. The power source is mounted on the fixed base, and the power source can drive the pin head to move up and down. The pin head can limit and lock the height of the movable pedal on the pedal bracket.

[0006] Preferably, the pedal bracket includes a first linkage group and a second linkage group. One end of the first linkage group is connected to a fixed base, and the other end is connected to a movable pedal. One end of the second linkage group is connected to the fixed base, and the other end is connected to the movable pedal. The middle of the first linkage group is connected to the middle of the second linkage group. By setting the first linkage group and the second linkage group, the pedal bracket has the characteristics of being lightweight, stable, flexible, and having good stability.

[0007] Preferably, the bottom of the movable pedal is provided with a first hinge support and a second hinge support on the side connected to the first linkage group. The end of the first linkage group connected to the fixed base is provided with a first roller group. The first linkage group can move along the top of the fixed base through the first roller group. The first linkage group can rotate around the first hinge support and the second hinge support. The top of the fixed base is provided with a third hinge support and a fourth hinge support on the side connected to the second linkage group. The end of the second linkage group connected to the movable pedal is provided with a second roller group. The second linkage group can move along the bottom of the movable pedal through the second roller group. The second linkage group can rotate around the third hinge support and the fourth hinge support. The middle of the first linkage group and the middle of the second linkage group can rotate relative to each other. By setting up a first roller group, a second roller group, a first hinge support, a second hinge support, a third hinge support, and a fourth hinge support, the first linkage group can move by moving along the fixed base and rotating around the first and second hinge supports. The second linkage group can move by moving along the movable pedal and rotating around the third and fourth hinge supports. This allows the movable pedal supported on the top of both the first and second linkage groups to achieve stable and flexible lifting and lowering movements.

[0008] Preferably, the top of the fixed base is further provided with a fifth hinge support, and the push rod device can rotate around the fifth hinge support. The push rod device is connected to the first linkage group, and the end of the push rod device connected to the first linkage group is provided with a mounting hole. The push rod device can rotate around the mounting hole, and the push rod device can push the first linkage group and the second linkage group to drive the movable pedal to move up and down. By providing the fifth hinge support and the mounting hole, the push rod device can adapt to the coordinated movement with the first linkage group and the second linkage group by rotating slightly along the fifth hinge support and the mounting hole, thus ensuring transmission efficiency.

[0009] Preferably, a guide hole is provided on the side of the fixed base that contacts the first roller group. The power source is installed on one side of the bottom of the guide hole. The power source can drive the pin head to pass through the guide hole for lifting and lowering movement. The pin head can limit the first roller group. By providing the guide hole, the pin head can accurately pass through the guide hole to limit the first roller group, accurately control the position of the pedal bracket and the movable pedal, and also avoid relying solely on the first force-applying component to support the pedal bracket, thus extending the service life of each transmission component.

[0010] Preferably, the pedal lifting mechanism for the injection molding machine's clamping area further includes a first signal device and a second signal device. The first signal device is installed on the other side of the bottom of the guide hole, and the second signal device is installed on one side of the fixed base. The first and second signal devices are used to sense the position status of the movable pedal and send a status signal of the movable pedal. By setting the first and second signal devices, the pedal lifting mechanism can monitor the position information of the movable pedal accurately in real time, so as to facilitate the coordinated work and real-time response of other structures.

[0011] Preferably, the pedal lifting mechanism further includes a third signal device and a fourth signal device, both mounted on the power source. These third and fourth signal devices are used to sense the position of the latch head and issue a status signal. By including the third and fourth signal devices, the pedal lifting mechanism can accurately monitor the position information of the latch head in real time, enabling coordinated operation and real-time response from other components.

[0012] A second aspect of this utility model provides an injection molding machine, including a machine body, a door assembly, and a pedal lifting mechanism for the molding area of ​​the injection molding machine provided in any implementation of the first aspect. The door assembly is installed on both sides of the machine body. The machine body includes a frame, a fixed mold assembly, and a moving mold assembly. The fixed mold assembly is installed on one side of the frame. The door assembly, the frame, and the fixed mold assembly form a molding area of ​​the injection molding machine. The moving mold assembly moves within the molding area of ​​the injection molding machine. The pedal lifting mechanism is installed inside the door assembly.

[0013] Preferably, the door assembly includes a door, a door bracket, and a fixed pedal. The door bracket is mounted on the machine frame, and both the door and the fixed pedal are mounted on the door bracket. The fixed base of the pedal lifting mechanism is mounted at the bottom of the door bracket and located within the molding area of ​​the injection molding machine. By setting up the door, door bracket, and fixed pedal, the basic conditions for the coordinated operation of the door and the movable pedal are initially established.

[0014] Preferably, the machine body further includes a third force-applying component and a guide rail. A third roller assembly is provided at the bottom of the machine door. Both the third force-applying component and the guide rail are mounted on the frame. The third force-applying component is connected to the bottom of the machine door and can drive the machine door to move horizontally along the guide rail via the third roller assembly. By setting up the third force-applying component, guide rail, and third roller assembly, the machine door can be automatically opened and closed. By setting up the coordinated operation of the machine door and the pedal lifting mechanism, the control system can control the position of the movable pedal and the machine door in real time according to the working conditions, ensuring the personal safety of the operator.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The pedal lifting mechanism and control system for the mold-locking area of ​​an injection molding machine described in this utility model consists of a fixed base, a movable pedal, a lifting mechanism, a first force-applying component, a second force-applying component, a machine body, and a machine door component. Through the coordinated work of the lifting movable pedal and the movable machine door, and the automated control of the movement state and position of the machine door and the movable pedal, real-time monitoring and response are achieved. Without affecting the opening and closing of the mold, the height difference between the pedals when the operator is working in the operating area is eliminated, thus achieving safe production and ensuring the personal safety of the operator. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0018] Figure 1 This utility model provides an overall structural schematic diagram of a pedal lifting mechanism for the mold locking area of ​​an injection molding machine.

[0019] Figure 2 This utility model provides a structural diagram of a pedal lifting mechanism for the mold locking area of ​​an injection molding machine, comprising a fixed base, a pedal bracket, a movable pedal, and a first force application component.

[0020] Figure 3 This utility model provides a structural schematic diagram of a pedal lifting mechanism for the mold locking area of ​​an injection molding machine, including a fixed base, pedal bracket, movable pedal, and first force application component, viewed from below.

[0021] Figure 4 This utility model provides a structural schematic diagram of a fixed base, a second force application component, a first signal device, a second signal device, a third signal device, and a fourth signal device in a pedal lifting mechanism for the mold locking area of ​​an injection molding machine.

[0022] Figure 5 This is a structural schematic diagram of a pedal lifting mechanism for the mold locking area of ​​an injection molding machine, including a fixed base, a second force application component, a first signal device, and a second signal device, from another perspective.

[0023] Figure 6 This utility model provides a structural schematic diagram of a control system for the mold clamping area of ​​an injection molding machine.

[0024] Figure 7 This is a schematic diagram of the control system for the clamping area of ​​an injection molding machine, provided by this utility model, from another perspective.

[0025] Figure 8 This utility model provides a structural schematic diagram of the door assembly and pedal lifting mechanism in the control system of the mold locking area of ​​an injection molding machine.

[0026] In the diagram: 1. Fixed base; 2. Movable pedal; 3. Pedal bracket; 4. First force-applying component; 5. Second force-applying component; 8. Machine body; 9. Door assembly; 11. Third hinge support; 12. Fourth hinge support; 13. Fifth hinge support; 14. Guide hole; 21. First hinge support; 22. Second hinge support; 31. First linkage group; 32. Second linkage group; 41. Push rod device; 51. Pin head; 52. Power source; 61. First signal device; 62. Second signal device; 71. Third signal device; 72. Fourth signal device; 81. Frame; 82. Fixed mold assembly; 83. Moving mold assembly; 84. Third force-applying component. Components; 85. Guide rail; 91. Machine door; 92. Machine door bracket; 93. Fixed pedal; 311. First connecting rod; 312. Second connecting rod; 313. First roller group; 314. First connecting piece; 315. Third connecting piece; 321. Third connecting rod; 322. Fourth connecting rod; 323. Second roller group; 324. Second connecting piece; 411. Push rod; 412. Power cylinder; 413. Assembly hole; 841. Drive wheel; 842. Conveyor belt; 843. Driven wheel; 911. Third roller group; 3131. First roller; 3132. Second roller; 3231. Third roller; 3232. Fourth roller. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other.

[0031] Example 1

[0032] Please see Figures 1 to 5This embodiment provides a pedal lifting mechanism for the mold clamping area of ​​an injection molding machine. The pedal lifting mechanism is installed in the mold clamping area of ​​the injection molding machine and includes a fixed base 1, a movable pedal 2, a pedal bracket 3, a first force-applying component 4, and a second force-applying component 5. The fixed base 1, pedal bracket 3, and movable pedal 2 are connected in sequence. The first force-applying component 4 and the second force-applying component 5 are both installed on the fixed base 1. The first force-applying component 4 includes a push rod device 41. One end of the push rod device 41 is installed on the fixed base 1, and the other end of the push rod device 41 is connected to the pedal bracket 3. The push rod device 41 can push the pedal bracket 3 to drive the movable pedal 2 to move up and down. The second force-applying component 5 includes a pin head 51 and a power source 52 connected in sequence. The power source 52 is installed on the fixed base 1. The power source can drive the pin head 51 to move up and down. The pin head 51 can limit the pedal bracket 3 and lock the height of the movable pedal 2.

[0033] Please see Figures 1 to 3 The pedal bracket 3 includes a first link group 31 and a second link group 32. One end of the first link group 31 is connected to the fixed base 1, and the other end is connected to the movable pedal 2. One end of the second link group 32 is connected to the fixed base 1, and the other end is connected to the movable pedal 2. The middle of the first link group 31 is connected to the middle of the second link group 32. By setting the first link group 31 and the second link group 32, the pedal bracket 3 has the characteristics of being lightweight, stable, flexible, and having good stability.

[0034] Specifically, the first linkage group 31 includes a first linkage 311 and a second linkage 312, and the second linkage group 32 includes a third linkage 321 and a fourth linkage 322. One end of the first linkage 311 is connected to one end of the second linkage 312 by a first connector 314. The other end of the first linkage 311 is installed on one side of the bottom of the movable pedal 2, and the other end of the second linkage 312 is installed on one side of the bottom of the movable pedal 2. One end of the third linkage 321 is connected to one end of the fourth linkage 322 by a second connector 324. The other end of the third linkage 321 is installed on one side of the top of the fixed base 1, and the other end of the fourth linkage 322 is installed on one side of the top of the fixed base 1. The middle of the first linkage 311 is hinged to the middle of the third linkage 321, and the middle of the second linkage 312 is hinged to the middle of the fourth linkage 322. The first linkage group 31 and the second linkage group 32 form an X-shaped structure, which supports the movable pedal 2 and keeps the movable pedal 2 horizontal when the structure deforms.

[0035] Please see Figures 1 to 3The bottom of the movable pedal 2 is provided with a first hinge support 21 and a second hinge support 22 on the side connected to the first linkage group 31. The end of the first linkage group 31 connected to the fixed base 1 is provided with a first roller group 313. The first linkage group 31 can move along the top of the fixed base 1 through the first roller group 313. The first linkage group 31 can rotate around the first hinge support 21 and the second hinge support 22. The top of the fixed base 1 is provided with a third hinge support 11 and a fourth hinge support 12 on the side connected to the second linkage group 32. The end of the second linkage group 32 connected to the movable pedal 2 is provided with a second roller group 323. The second linkage group 32 can move along the bottom of the movable pedal 2 through the second roller group 323. The second linkage group 32 can rotate around the third hinge support 11 and the fourth hinge support 12. The middle of the first linkage group 31 and the middle of the second linkage group 32 can rotate relative to each other. By setting up a first roller group 313, a second roller group 323, a first hinge support 21, a second hinge support 22, a third hinge support 11, and a fourth hinge support 12, the first linkage group 31 can move by moving along the fixed base 1 and rotating around the first hinge support 21 and the second hinge support 22. The second linkage group 32 can move by moving along the movable pedal 2 and rotating around the third hinge support 11 and the fourth hinge support 12. This allows the movable pedal 2 supported on the top of both the first linkage group 31 and the second linkage group 32 to achieve stable and flexible lifting and lowering movements.

[0036] Specifically, the first roller assembly 313 includes a first roller 3131 and a second roller 3132, and the second roller assembly 323 includes a third roller 3231 and a fourth roller 3232. The first roller 3131 is mounted on the end of the first connecting member 314 that is hinged to the first connecting rod 311, the second roller 3132 is mounted on the end of the first connecting member 314 that is hinged to the second connecting rod 312, and the third roller 3231 is mounted on the end of the second connecting member 324 that is hinged to the third connecting rod 321. The fourth roller 3132... 232 is installed at the end of the second connecting member 324 that is hinged to the fourth connecting rod 322; the end of the first connecting rod 311 without rollers is hinged to the first hinge support 21 at the bottom of the movable pedal 2, the end of the second connecting rod 312 without rollers is hinged to the second hinge support 22 at the bottom of the movable pedal 2, the end of the third connecting rod 321 without rollers is hinged to the third hinge support 11 at the top of the fixed base 1, and the end of the fourth connecting rod 322 without rollers is hinged to the fourth hinge support 12 at the top of the fixed base 1. During operation, one end of the first connecting rod group 31 and one end of the second connecting rod group 32 are respectively fixed to the movable pedal 2 and the fixed base 1 and can rotate around the hinge support above them, and the first roller group 313 and the second roller group 323 can move along the fixed base 1 and the movable pedal 2 respectively.

[0037] Please see Figures 1 to 3The top of the fixed base 1 is also provided with a fifth hinge support 13. The push rod device 41 can rotate around the fifth hinge support 13. The push rod device 41 is connected to the first connecting rod group 31. The end of the push rod device 41 connected to the first connecting rod group 31 is provided with an assembly hole 413. The push rod device 41 can rotate around the assembly hole 413. The push rod device 41 can push the first connecting rod group 31 and the second connecting rod group 32 to drive the movable pedal 2 to move up and down. By setting the fifth hinge support 13 and the assembly hole 413, the push rod device 41 can adapt to the coordinated movement with the first connecting rod group 31 and the second connecting rod group 32 by rotating slightly along the fifth hinge support 13 and the assembly hole 413, thus ensuring transmission efficiency.

[0038] Specifically, a third connecting member 315 is provided on the first connecting rod group 31, between the first connecting rod 311 and the second connecting rod 312. The two ends of the third connecting member 315 are respectively hinged to the first connecting rod 311 and the second connecting rod 312. The push rod device 41 includes a push rod 411 and a power cylinder 412. The power cylinder 412 can drive the push rod 411 to achieve reciprocating motion. The bottom of the power cylinder 412 is hinged to the fifth hinge support 13. The push rod 411 has an assembly hole 413 on the side away from the power cylinder 412. The assembly hole 413 matches the outer contour of the third connecting member 315 to realize the connection between the push rod device 41 and the first connecting rod group 31. During operation, the push rod device 41 pushes the first linkage group 31. Both ends of the push rod device 41 rotate slightly around the third connector 315 and the fifth hinge support 13, respectively. The end of the first linkage group 31 hinged to the movable pedal 2 rotates slightly around the first hinge support 21 and the second hinge support 22. The first roller group 313 rolls towards the third hinge support 11 and the fourth hinge support 12. The middle of the first linkage group 31 and the middle of the second linkage group 32 rotate slightly relative to each other. The end of the second linkage group 32 hinged to the fixed base 1 rotates slightly around the third hinge support 11 and the fourth hinge support 12. The second roller group 323 rolls towards the first hinge support 21 and the second hinge support 22, thus achieving a stable upward movement of the movable pedal 2. The push rod device 41 drives the first linkage group 31 to reset. The two ends of the push rod device 41 rotate slightly around the third connector 315 and the fifth hinge support 13 respectively. The end of the first linkage group 31 that is hinged to the movable pedal 2 rotates slightly around the first hinge support 21 and the second hinge support 22. The first roller group 313 rolls away from the third hinge support 11 and the fourth hinge support 12. The middle of the first linkage group 31 and the middle of the second linkage group 32 rotate slightly relative to each other. The end of the second linkage group 32 that is hinged to the fixed base 1 rotates slightly around the third hinge support 11 and the fourth hinge support 12. The second roller group 323 rolls away from the first hinge support 21 and the second hinge support 22, so as to realize the stable descent of the movable pedal 2.

[0039] Please see Figure 4 and Figure 5 A guide hole 14 is provided on the side of the fixed base 1 that contacts the first roller assembly 313. A power source 52 is installed on one side of the bottom of the guide hole 14. The power source 52 can drive the pin head 51 to pass through the guide hole 14 for lifting and lowering movement. The pin head 51 can limit the first roller assembly 313. By setting the guide hole 14, the pin head 51 can accurately pass through the guide hole 14 to limit the first roller assembly 313, accurately control the position of the pedal bracket 3 and the movable pedal 2, and also avoid relying solely on the first force application component 4 to support the pedal bracket 3, thus extending the service life of each transmission component.

[0040] Specifically, a guide hole 14 is provided on the side of the fixed base 1 that connects to the first roller assembly 313. The second force-applying component 5 is installed in the guide hole 14, wherein the power source 52 is installed at the bottom of the guide hole 14. The power source 52 can drive the pin head 51 to rise through the guide hole 14 to limit the first roller assembly 313, or to fall through the guide hole 14 to release the limit on the first roller assembly 313. When the second force-applying component 5 is working, the power source 52 drives the pin head 51 to rise, and the pin head 51 rises through the guide hole 14 until it is inserted. When the pin head 51 passes the height of the first connector 314, it can block the first connector 314 and limit the first roller group 313 to prevent the first roller group 313 from rolling away from the third hinge support 11 and the fourth hinge support 12 due to the force on the top of the movable pedal 2. The power source 52 drives the pin head 51 to descend. The pin head 51 passes through the guide hole 14 and descends to reset, which can cancel the limitation on the first roller group 313. At this time, the first roller group 313 can roll away from the third hinge support 11 and the fourth hinge support 12.

[0041] Please see Figure 4 and Figure 5 The pedal lifting mechanism for the mold clamping area of ​​the injection molding machine also includes a first signal device 61 and a second signal device 62. The first signal device 61 is installed on the other side of the bottom of the guide hole 14, and the second signal device 62 is installed on one side of the fixed base 1. The first signal device 61 and the second signal device 62 are used to sense the position status of the movable pedal 2 and send a status signal of the movable pedal 2. By setting the first signal device 61 and the second signal device 62, the pedal lifting mechanism can monitor the position information of the movable pedal 2 in real time and accurately, so as to enable the coordinated work and real-time response of other structures.

[0042] Specifically, a first signal device 61 is installed on the other side of the bottom of the guide hole 14. The first signal device 61 is located on one side of the second force application component 5. Near the second force application component 5, a second signal device 62 is installed on one side of the fixed base 1. When the first roller group 313 rolls to the vicinity of the first signal device 61 and the second signal device 62, the first signal device 61 and the second signal device 62 can sense the movement state of the first roller group 313. When the movable pedal 2 rises, the first roller group 313 rolls toward the third hinge support 11 and the fourth hinge support 12. When the first roller group 313 passes near the second signal device 62, the second signal device 62 senses the passage of the first roller group 313 and sends a pedal rise signal. When the movable pedal 2 falls, the first roller group 313 rolls away from the third hinge support 11 and the fourth hinge support 12. When the first roller group 313 passes near the first signal device 61, the first signal device 61 senses the passage of the first roller group 313 and sends a pedal fall signal.

[0043] Please see Figure 4 and Figure 5 The pedal lifting mechanism for the injection molding machine's clamping area also includes a third signal device 71 and a fourth signal device 72. Both the third signal device 71 and the fourth signal device 72 are mounted on the power source 52. These devices sense the position of the pin head 51 and send a status signal to it. By including the third signal device 71 and the fourth signal device 72, the pedal lifting mechanism can accurately monitor the position information of the pin head 51 in real time, enabling coordinated operation and real-time response from other components.

[0044] Specifically, a third signal device 71 and a fourth signal device 72 are installed on one side of the power source 52, with the third signal device 71 positioned above the fourth signal device 72. When the second force application component 5 is working, the power source 52 drives the pin head 51 to rise, passing through the guide hole 14 until the pin head 51 exceeds the height of the first connector 314, thus limiting the first roller group 313. The third signal device 71 senses the pin head 51's arrival and sends a pin-up-to-position signal. The power source 52 drives the pin head 51 to descend, passing through the guide hole 14 and resetting, thus canceling the limitation on the first roller group 313. The fourth signal device 72 senses the pin head 51's reset and sends a pin-down-to-position signal.

[0045] The working principle of the pedal lifting mechanism for the mold clamping area of ​​the injection molding machine is as follows: When the movable pedal 2 rises, the push rod device 41 pushes the first connecting rod group 31 and the second connecting rod group 32 to move. At this time, the first roller group 313 of the first connecting rod group 31 rolls along the top of the fixed base 1 toward the third hinge support 11 and the fourth hinge support 12. The second roller group 323 of the second connecting rod group 32 rolls along the bottom of the movable pedal 2 toward the first hinge support 21 and the second hinge support 22. When the first roller group 313 passes near the second signal device 62, the second signal device 62 senses the passage of the first roller group 313 and sends a pedal rise signal. The power source 52 drives the pin head 51 to rise. The pin head 51 limits the first roller group 313. The third signal device 71 senses the pin head 51's arrival. The power source 52 drives the pin head 51 to descend when the movable pedal 2 descends. The pin head 51 releases its limit on the first roller group 313. The fourth signal device 72 senses the reset of the pin head 51 and sends a pin descent signal. The push rod device 41 pushes the first linkage group 31 and the second linkage group 32 to move. At this time, the first roller group 313 of the first linkage group 31 rolls along the top of the fixed base 1 in a direction away from the third hinge support 11 and the fourth hinge support 12. The second roller group 323 of the second linkage group 32 rolls along the bottom of the movable pedal 2 in a direction away from the first hinge support 21 and the second hinge support 22. The first roller group 313 passes near the first signal device 61. The first signal device 61 senses the passage of the first roller group 313 and sends a pedal descent signal.

[0046] Example 2

[0047] This embodiment also provides an injection molding machine, including a machine body 8, a door assembly 9, and a pedal lifting mechanism for the molding area of ​​the injection molding machine provided in any implementation of Embodiment 1. The door assembly 9 is installed on both sides of the machine body 8. The machine body 8 includes a frame 81, a fixed mold assembly 82, and a moving mold assembly 83. The fixed mold assembly 82 is installed on one side of the frame 81. The door assembly 9, the frame 81, and the fixed mold assembly 82 form a molding area of ​​the injection molding machine. The moving mold assembly 83 moves within the molding area of ​​the injection molding machine. The pedal lifting mechanism is installed inside the door assembly 9.

[0048] Please see Figures 6 to 8 The machine door assembly 9 includes a machine door 91, a machine door bracket 92, and a fixed pedal 93. The machine door bracket 92 is mounted on the machine frame 81, and both the machine door 91 and the fixed pedal 93 are mounted on the machine door bracket 92. The fixed base 1 of the pedal lifting mechanism is mounted on the bottom of the machine door bracket 92 and located within the molding area of ​​the injection molding machine. By setting up the machine door 91, the machine door bracket 92, and the fixed pedal 93, the basic conditions for the machine door 91 and the movable pedal 2 to work together are initially established.

[0049] Specifically, the door bracket 92 is installed on the frame 81, the door 91 is installed on the top of the door bracket 92 away from the injection molding machine's locking area, the fixed pedal 93 is installed on the side of the door 91 facing the injection molding machine's locking area, and the pedal lifting mechanism is installed on the bottom of the door bracket 92 facing the injection molding machine's locking area.

[0050] Please see Figures 6 to 8 The machine body 8 also includes a third force-applying component 84 and a guide rail 85. A third roller assembly 911 is located at the bottom of the machine door 91. Both the third force-applying component 84 and the guide rail 85 are mounted on the frame 81. The third force-applying component 84 is connected to the bottom of the machine door 91 and can drive the machine door 91 to move horizontally along the guide rail 85 via the third roller assembly 911. By setting up the third force-applying component 84, guide rail 85, and third roller assembly 911, the machine door 91 can be automatically opened and closed. By coordinating the operation of the machine door 91 with the pedal lifting mechanism, the control system can control the position of the movable pedal 2 and the machine door 91 in real time according to the working conditions, ensuring the personal safety of the operator.

[0051] Specifically, the third force-applying component 84 includes a driving wheel 841, a conveyor belt 842, and a driven wheel 843. The driving wheel 841 and the driven wheel 843 are mounted on the frame 81, with the driven wheel 843 located below the door 91. The conveyor belt 842 is installed between the driving wheel 841 and the driven wheel 843. The guide rail 85 is mounted on the frame 81 and located directly above the conveyor belt 842. The door 91 is connected to the conveyor belt 842. During operation, the driving wheel 841, in conjunction with the driven wheel 843, drives the conveyor belt 842. The conveyor belt 842 pulls the door 91 horizontally along the guide rail 85 via the third roller group 911 at the bottom, thus enabling the door 91 to open and close.

[0052] The working principle of the injection molding machine is as follows: When the equipment starts, the machine door 91 is closed. The moving mold assembly 83 prepares for operation and sends a mold closing signal. The power source 52 drives the pin head 51 to descend, releasing the pin head 51 from its limit on the first roller assembly 313. The fourth signal device 72 senses the reset of the pin head 51 and sends a pin descent signal. The push rod device 41 pushes the first connecting rod assembly 31 and the second connecting rod assembly 32 to move. At this time, the first roller assembly 313 of the first connecting rod assembly 31 rolls along the top of the fixed base 1 in a direction away from the third hinge support 11 and the fourth hinge support 12. The second roller assembly of the second connecting rod assembly 32... 323 rolls along the bottom of the movable pedal 2 in a direction away from the first hinge support 21 and the second hinge support 22, causing the movable pedal 2 to descend. The first roller group 313 passes near the first signal device 61, which senses its passage and sends a pedal descent signal. The moving mold assembly 83 moves toward the fixed mold assembly 82. After the mold closing operation is completed, an opening signal is sent, and the moving mold assembly 83 resets. After resetting, an opening signal is sent. At this time, the operator needs to manually confirm whether the movable pedal 2 has been entered. After confirmation, the push rod device 41 pushes the first connecting rod group 31 and the second connecting rod group 22. When the linkage assembly 32 moves, the first roller assembly 313 of the first linkage assembly 31 rolls along the top of the fixed base 1 toward the third hinge support 11 and the fourth hinge support 12. The second roller assembly 323 of the second linkage assembly 32 rolls along the bottom of the movable pedal 2 toward the first hinge support 21 and the second hinge support 22. The movable pedal 2 rises, and the first roller assembly 313 passes near the second signal device 62. The second signal device 62 senses the passage of the first roller assembly 313 and sends a pedal rise signal. The power source 52 drives the pin head 51 to rise, and the pin head 51 moves relative to the first roller assembly 313. When the limit is set, the third signal device 71 senses the pin head 51 in place and sends a pin rise to the position signal. At this time, the movable pedal 2 is safe. The third force application component 84 drives the machine door 91 to move along the guide rail 85 through the third roller group 911 to open the door. The operator can step into the fixed pedal 93 and enter the movable pedal 2 to work. When any of the above links has a problem, that is, when the equipment malfunctions, a red light alarm will be issued and the machine door 91 will be locked, prohibiting the operator from opening the door to enter the injection molding machine locking area. When the fault is eliminated or maintenance is required, the moving mold component 83 will stop running and the safety hazard has been eliminated before the door can be unlocked and the operator can enter.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pedal lifting mechanism for the mold clamping area of ​​an injection molding machine, the pedal lifting mechanism being installed within the mold clamping area of ​​the injection molding machine, characterized in that, It includes a fixed base (1), a movable pedal (2), a pedal bracket (3), a first force-applying component (4), and a second force-applying component (5). The fixed base (1), the pedal bracket (3), and the movable pedal (2) are connected in sequence. The first force-applying component (4) and the second force-applying component (5) are both installed on the fixed base (1). The first force application component (4) includes a push rod device (41), one end of which is mounted on a fixed base (1), and the other end of which is connected to a pedal bracket (3). The push rod device (41) can push the pedal bracket (3) to drive the movable pedal (2) to perform lifting and lowering movements. The second force application component (5) includes a pin head (51) and a power source (52) connected in sequence. The power source (52) is installed on the fixed base (1). The power source (52) can drive the pin head (51) to perform lifting and lowering movements. The pin head (51) can limit the pedal bracket (3) and lock the height of the movable pedal (2).

2. The pedal lifting mechanism for the mold locking area of ​​an injection molding machine according to claim 1, characterized in that, The pedal bracket (3) includes a first link group (31) and a second link group (32). One end of the first link group (31) is connected to the fixed base (1), and the other end of the first link group (31) is connected to the movable pedal (2). One end of the second link group (32) is connected to the fixed base (1), and the other end of the second link group (32) is connected to the movable pedal (2). The middle of the first link group (31) is connected to the middle of the second link group (32).

3. A pedal lifting mechanism for the mold locking area of ​​an injection molding machine according to claim 2, characterized in that, The bottom of the movable pedal (2) is provided with a first hinge support (21) and a second hinge support (22) on the side connected to the first linkage group (31). The first linkage group (31) is provided with a first roller group (313) at the end connected to the fixed base (1). The first linkage group (31) can move along the top of the fixed base (1) through the first roller group (313). The first linkage group (31) can rotate around the first hinge support (21) and the second hinge support (22). The fixed base (1) is provided with a third hinge support (11) and a fourth hinge support (12) on the side where the top of the base is connected to the second linkage group (32). The second linkage group (32) is provided with a second roller group (323) at the end where it is connected to the movable pedal (2). The second linkage group (32) can move along the bottom of the movable pedal (2) through the second roller group (323). The second linkage group (32) can rotate around the third hinge support (11) and the fourth hinge support (12). The middle of the first linkage group (31) and the middle of the second linkage group (32) can rotate relative to each other.

4. A pedal lifting mechanism for the mold clamping area of ​​an injection molding machine according to claim 3, characterized in that, The top of the fixed base (1) is also provided with a fifth hinge support (13). The push rod device (41) can rotate around the fifth hinge support (13). The push rod device (41) is connected to the first linkage group (31). The end of the push rod device (41) connected to the first linkage group (31) is provided with an assembly hole (413). The push rod device (41) can rotate around the assembly hole (413). The push rod device (41) can push the first linkage group (31) and the second linkage group (32) to drive the movable pedal (2) to move up and down.

5. A pedal lifting mechanism for the mold clamping area of ​​an injection molding machine according to claim 3, characterized in that, The fixed base (1) has a guide hole (14) on the side that contacts the first roller group (313). The power source (52) is installed on one side of the bottom of the guide hole (14). The power source (52) can drive the pin head (51) to pass through the guide hole (14) for lifting and lowering. The pin head (51) can limit the first roller group (313).

6. A pedal lifting mechanism for the mold clamping area of ​​an injection molding machine according to claim 5, characterized in that, The pedal lifting mechanism also includes a first signal device (61) and a second signal device (62). The first signal device (61) is installed on the other side of the bottom of the guide hole (14), and the second signal device (62) is installed on one side of the fixed base (1). The first signal device (61) and the second signal device (62) are used to sense the position status of the movable pedal (2) and send a status signal of the movable pedal (2).

7. A pedal lifting mechanism for the mold locking area of ​​an injection molding machine according to claim 5, characterized in that, The pedal lifting mechanism also includes a third signal device (71) and a fourth signal device (72). The third signal device (71) and the fourth signal device (72) are both installed on the power source (52). The third signal device (71) and the fourth signal device (72) are used to sense the position status of the pin head (51) and send a status signal of the pin head (51).

8. An injection molding machine, characterized in that, The device includes a body (8), a door assembly (9), and a pedal lifting mechanism for the molding area of ​​an injection molding machine as described in any one of claims 1 to 7. The door assembly (9) is installed on both sides of the body (8). The body (8) includes a frame (81), a fixed mold assembly (82), and a moving mold assembly (83). The fixed mold assembly (82) is installed on one side of the frame (81). The door assembly (9), the frame (81), and the fixed mold assembly (82) form a molding area of ​​the injection molding machine. The moving mold assembly (83) moves within the molding area of ​​the injection molding machine. The pedal lifting mechanism is installed inside the door assembly (9).

9. An injection molding machine according to claim 8, characterized in that, The door assembly (9) includes a door (91), a door bracket (92), and a fixed pedal (93). The door bracket (92) is mounted on the frame (81). The door (91) and the fixed pedal (93) are both mounted on the door bracket (92). The fixed base (1) of the pedal lifting mechanism is mounted on the bottom of the door bracket (92) and located in the molding area of ​​the injection molding machine.

10. An injection molding machine according to claim 9, characterized in that, The machine body (8) also includes a third force-applying component (84) and a guide rail (85). The bottom of the machine door (91) is provided with a third roller group (911). The third force-applying component (84) and the guide rail (85) are both mounted on the frame (81). The third force-applying component (84) is connected to the bottom of the machine door (91). The third force-applying component (84) can drive the machine door (91) to move horizontally along the guide rail (85) through the third roller group (911).

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