Full-electric mold opening and closing mechanism for stacking barrel

Abstract

The utility model provides a full-electric mold opening and closing mechanism for a stacking barrel, which is characterized in that a machine frame is fixedly provided with an optical shaft, the optical shaft is movably provided with a front mold plate and a rear mold plate, the machine frame is movably provided with a front crank and a rear crank, and the first end of the rear crank is fixedly provided with a driving device which comprises a motor and a reduction gearbox; the reduction gearbox is in driving connection with the first end of the front crank through a movable arm assembly, the front mold plate is movably connected with the second end of the front crank through a front crank connecting piece, the rear mold plate is movably connected with the second end of the rear crank through a rear crank connecting piece, and a symmetrical moving device is fixedly installed on the machine frame. During mold closing, the motor drives the reduction gearbox to operate, the reduction gearbox drives the movable arm assembly to extend, the second ends of the front crank and the rear crank are driven to get close to each other, the front mold plate and the rear mold plate are made to get close to each other, under the limitation of the optical axis, the front mold plate and the rear mold plate slide stably, and molds on the front mold plate and the rear mold plate are accurately closed; the quality of products produced by the mold is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of blow molding, and particularly relates to a fully electric mold opening and closing mechanism for stacking barrels. Background Art

[0002] Stacking barrels are plastic barrels, generally square plastic barrels or closed barrels. The barrel material is a high-density polyethylene plastic barrel. They are mostly used to store liquid materials and transport liquid materials.

[0003] In the production process of stacking barrels, two molds are generally used to facilitate production and processing. During injection molding, the two molds need to be closed, and then the stacking barrel is formed by blow molding. After the formed stacking barrel cools down, the two molds are opened again, and the stacking barrel is taken out to complete the injection molding process. In this process, a mold opening and closing mechanism is required to improve production efficiency and mold closing accuracy. The structure of the existing stacking barrel opening and closing mechanism is unstable, resulting in the inability to align the molds during the mold closing process, resulting in reduced product quality. Utility Model Content

[0004] The purpose of the utility model is to provide a fully electric mold opening and closing mechanism for stacking barrels to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully electric mold opening and closing mechanism for stacking barrels, comprising a frame, the frame is fixedly mounted with an optical axis, the optical axis is movably mounted with a front template and a rear template, the frame is movably mounted with a front crank and a rear crank, the first end of the rear crank is fixedly mounted with a driving device, the driving device comprises a motor and a reduction gearbox, the motor drives the reduction gearbox, the reduction gearbox is driven and connected to the first end of the front crank through an arm assembly, the front template is movably connected to the second end of the front crank through a front crank connector, the rear template is movably connected to the second end of the rear crank through a rear crank connector, and the frame is fixedly mounted with a symmetrical moving device.

[0006] Preferably, the symmetrical moving device includes a base, a front opening and closing mold synchronization rack rod and a rear opening and closing mold synchronization rack rod, the base is movably installed with a gear, the front opening and closing mold synchronization rack rod is engaged with the rear opening and closing mold synchronization rack rod through the gear, one end of the front opening and closing mold synchronization rack rod is fixedly connected to the front template, and the rear opening and closing mold synchronization rack rod is fixedly connected to the rear template.

[0007] Preferably, the movable arm assembly includes a driving arm and a passive arm, the driving arm is movably connected to the passive arm, the driving arm is drivingly connected to the reduction gearbox, and the passive arm is movably connected to the first end of the front crank.

[0008] Preferably, the passive arm comprises a connecting rod joint, a mold locking connecting rod, and an arcuate connecting rod. The connecting rod joint is fixedly connected to the mold locking connecting rod via a first fastener, and the mold locking connecting rod is fixedly connected to the arcuate connecting rod via a second fastener.

[0009] Preferably, the front template and the rear template are both fixedly mounted with auxiliary support plates.

[0010] Preferably, both the front template and the rear template are fixedly mounted with limiting push rods.

[0011] Preferably, the frame is fixedly mounted with a mounting plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The frame of the utility model is fixedly installed with an optical axis, and a front template and a rear template are movably installed on the optical axis, and a front crank and a rear crank are movably installed on the frame, and a driving device is fixedly installed on the first end of the rear crank, and the driving device includes a motor and a reduction gear box, and the reduction gear box is driven by the first end of the front crank through the movable arm assembly, and the front template is movably connected to the second end of the front crank through the front crank connecting piece, and the rear template is movably connected to the second end of the rear crank through the rear crank connecting piece. When closing the mold, the motor drives the reduction gear box to operate, and the reduction gear box drives the movable arm assembly to extend the movable arm assembly and drive the second ends of the front crank and the rear crank to move closer to each other, so that the front template and the rear template move closer to each other. Under the restriction of the optical axis, the front template and the rear template slide stably, so that the molds on the front template and the rear template are accurately closed, thereby improving the quality of products produced by the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural view of the utility model in the mold closing state.

[0015] Figure 2 This is a structural view of the utility model in the mold opening state.

[0016] Figure 3 This is the first perspective structural view of the utility model.

[0017] Figure 4 This is the second perspective structural view of the utility model.

[0018] Figure 5 It is a structural view of the disassembled components of the utility model.

[0019] Figure 6 It is a view of the internal structure of the present utility model.

[0020] Markings in the figure: frame 1, optical axis 2, front template 3, rear template 4, front crank 5, rear crank 6, driving device 7, motor 8, reduction gear box 9, movable arm assembly 10, front crank connecting piece 11, rear crank connecting piece 12, symmetrical moving device 13, base 14, front mold opening and closing synchronization rack rod 15, rear mold opening and closing synchronization rack rod 16, gear 17, driving arm 18, passive arm 19, connecting rod joint 20, clamping connecting rod 21, arc connecting rod 22, first fastener 23, second fastener 24, auxiliary support plate 25, limiting ejector rod 26, assembly plate 27. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1:

[0023] like Figures 1-6 As shown, the utility model provides a fully electric mold opening and closing mechanism for stacking barrels, including a frame 1, a fixed optical axis 2, a front template 3 and a rear template 4 are movably installed on the optical axis 2, a front crank 5 and a rear crank 6 are movably installed on the frame 1, a driving device 7 is fixedly installed on the first end of the rear crank 6, the driving device 7 includes a motor 8 and a reduction gear 9, the motor 8 drives the reduction gear 9, the reduction gear 9 is driven and connected to the first end of the front crank 5 through the boom assembly 10, the front template 3 is movably connected to the second end of the front crank 5 through the front crank connecting member 11, the rear template 4 is movably connected to the second end of the rear crank 6 through the rear crank connecting member 12, and the frame 1 is fixedly mounted with a symmetrical moving device 13. The symmetrical moving device 13 includes a base 14, a front mold opening and closing synchronization rack rod 15, and a rear mold opening and closing synchronization rack rod 16. The base 14 is movably mounted with a gear 17. The front mold opening and closing synchronization rack rod 15 is meshedly connected to the rear mold opening and closing synchronization rack rod 16 via the gear 17. One end of the front mold opening and closing synchronization rack rod 15 is fixedly connected to the front mold plate 3, and the rear mold opening and closing synchronization rack rod 16 is fixedly connected to the rear mold plate 4. The movable arm assembly 10 includes a driving arm 18 and a passive arm 19. The driving arm 18 is movably connected to the passive arm 19. The driving arm 18 is drivingly connected to the reduction gearbox 9. The passive arm 19 is movably connected to the first end of the front crank 5. The passive arm 19 includes a connecting rod joint 20, a clamping link 21, and an arcuate link 22. The connecting rod joint 20 is fixedly connected to the clamping link 21 via a first fastener 23, and the clamping link 21 is fixedly connected to the arcuate link 22 via a second fastener 24. The front template 3 and the rear template 4 are both fixedly installed with auxiliary support plates 25. The front template 3 and the rear template 4 are both fixedly installed with limited push rods 26. The frame 1 is fixedly installed with an assembly plate 27.

[0024] Through the above technical scheme, the frame 1 of the utility model is fixedly installed with an optical axis 2, and the front template 3 and the rear template 4 are movably installed on the optical axis 2. The frame 1 is movably installed with a front crank 5 and a rear crank 6. The first end of the rear crank 6 is fixedly installed with a driving device 7, and the driving device 7 includes a motor 8 and a reduction gear 9. The reduction gear 9 is driven by the first end of the front crank 5 through the boom assembly 10, and the front template 3 is movably connected to the second end of the front crank 5 through the front crank connecting piece 11, and the rear template 4 is movably connected to the second end of the rear crank 6 through the rear crank connecting piece 12. When the mold is closed, the motor 8 drives the reduction gear 9 to operate, and the reduction gear 9 drives the boom assembly 10 to extend the boom assembly 10, and drives the second ends of the front crank 5 and the rear crank 6 to move closer to each other, so that the front template 3 and the rear template 4 move closer to each other. Under the restriction of the optical axis 2, the front template 3 and the rear template 4 slide stably, so that the molds on the front template 3 and the rear template 4 are accurately closed, thereby improving the quality of the products produced by the mold.

[0025] Example 2:

[0026] like Figures 1-6 As shown, the frame 1 of the present invention is used to mount and support other components. The stability of the frame 1 directly impacts the performance of the entire mold opening and closing mechanism. The frame 1 is fixedly mounted with an optical axis 2, to which the front and rear mold plates 3 and 4 are movably mounted. The front and rear mold plates 3 and 4 are used to mount the molds, and the optical axis 2 guides the linear sliding movement of the front and rear mold plates 3 and 4. This guidance of the optical axis 2 ensures the stability of the front and rear mold plates 3 and 4 during movement, preventing misalignment of the molds.

[0027] The frame 1 is movably mounted with a front crank 5 and a rear crank 6. Specifically, their midsections are movably connected to the frame 1, while their ends are capable of lever-like movement. The movement of the front crank 5 and rear crank 6 ensures the mold's opening and closing. A drive unit 7 is fixedly mounted to the first end of the front crank 5. This drive unit 7 consists of a motor 8 and a reduction gearbox 9. The rotation of the motor 8 drives the reduction gearbox 9, which is connected to the first end of the front crank 5 via a boom assembly 10. Driven by the reduction gearbox 9, the boom assembly 10 can be extended and retracted. The first ends of the front crank 5 and the rear crank 6 are connected through the boom assembly 10, and the two ends of the front crank 5 and the rear crank 6 can move in a lever-like manner. When the boom assembly 10 is extended, the first ends of the front crank 5 and the rear crank 6 are both opened, while the second ends of the two are close to each other. The second end of the front crank 5 is movably connected to the front template 3, and the second end of the rear crank 6 is movably connected to the rear template 4. The second ends of the front crank 5 and the rear crank 6 are close to each other, so that the molds on the front template 3 and the rear template 4 are tightened. When the boom assembly 10 is shortened, the first ends of the front crank 5 and the rear crank 6 are both close to each other, while the second ends of the two are opened and separated, so that the molds on the front template 3 and the rear template 4 are opened.

[0028] The front template 3 is movably connected to the second end of the front crank 5 through the front crank connector 11, and the rear template 4 is movably connected to the second end of the rear crank 6 through the rear crank connector 12. When the front crank 5 and the rear crank 6 are driven by the motor 8, they can drive the movement of the front template 3 and the rear template 4 respectively. Through this structure, the front template 3 and the rear template 4 can be more coordinated during the mold opening and closing process. The frame 1 is fixedly installed with a symmetrical moving device 13, which applies a force to the front template 3 and the rear template 4 to ensure that their directions and distances remain symmetrical when moving. Ensure the accuracy of the mold closing position and improve the accuracy of equipment operation.

[0029] During the mold closing process, motor 8 drives the reduction gearbox 9 to rotate, which in turn drives the movement of the arm assembly 10, causing the arm assembly 10 to extend, causing the first ends of the front crank 5 and rear crank 6 to move apart while their second ends move closer together. The molds on the front and rear templates 3 and 4 are tightened, completing the mold closing process. Through the control of motor 8, the mold closing process can be completed quickly and accurately, thereby improving production efficiency and product quality. The mold opening process is similar to the mold closing process. Motor 8 drives the reduction gearbox 9 to rotate, shortening the arm assembly 10. The front crank 5 and rear crank 6 then drive the front and rear templates 3 and 4 to move outward, respectively, separating the molds on the front and rear templates 3 and 4, completing the mold opening process.

[0030] The coordination between motor 8 and reduction gearbox 9 allows for precise regulation of mold opening and closing speed and force, thus avoiding the issues of excessive speed or slow speed that can arise with traditional mechanical structures. By monitoring the operating status of motor 8 in real time, the control system can promptly adjust the speed of motor 8 to ensure stable mold opening and closing operations under varying operating conditions. This control strategy not only improves mold opening and closing efficiency but also ensures safety during the process, reducing the risk of equipment damage due to overload.

[0031] In response to the production needs of stacking buckets, the fully electric mold opening and closing mechanism can adapt to the production of stacking buckets of different types and specifications. By adjusting the length of the arm assembly 10, compatibility with molds of different sizes can be achieved.

[0032] In terms of production efficiency, the design of a fully electric mold opening and closing mechanism significantly reduces mold opening and closing time. Traditional mold opening and closing methods are often limited by the complexity of the mechanical transmission structure, resulting in slow opening and closing speeds. The electric drive system effectively overcomes this problem, providing higher response speed and repeatability. Especially in high-frequency production environments, this highly efficient mold opening and closing mechanism can significantly improve overall production capacity, reduce production cycle time, and enhance market competitiveness.

[0033] The symmetrical movement device 13 of the present invention includes a base 14, a front mold opening and closing synchronization rack rod 15, and a rear mold opening and closing synchronization rack rod 16. The base 14 is an important component of the symmetrical movement device 13, and its main function is to provide a stable support and installation foundation. A gear 17 is movably mounted on the base 14. The front mold opening and closing synchronization rack rod 15 is meshed and connected with the rear mold opening and closing synchronization rack rod 16 through the gear 17, so that the front mold opening and closing synchronization rack rod 15 and the rear mold opening and closing synchronization rack rod 16 are linked. The meshing connection between the front mold opening and closing synchronization rack rod 15 and the rear mold opening and closing synchronization rack rod 16 enables them to operate synchronously, thereby maintaining the symmetry of the movement of the front mold plate 3 and the rear mold plate 4 during mold opening and closing. One end of the front mold opening and closing synchronization rack rod 15 is fixedly connected to the front mold plate 3, while the rear mold opening and closing synchronization rack rod 16 is fixedly connected to the rear mold plate 4. This connection method ensures that the front mold plate 3 and the rear mold plate 4 maintain symmetry over the movement distance. When the mold is opened and closed, the movement of the front template 3 and the rear template 4 is restricted by the symmetrical moving device 13, ensuring that the movement speed, direction and distance of the front template 3 and the rear template 4 remain symmetrical. The front mold opening and closing synchronization rack rod 15 is meshed and connected with the rear mold opening and closing synchronization rack rod 16 through the gear 17, so that the movement of the front mold opening and closing synchronization rack rod 15 and the movement of the rear mold opening and closing synchronization rack rod 16 achieve a high degree of symmetry. During the operation of opening and closing the mold, when the motor 8 drives the reduction gear 9 to operate, it drives the front curved arm and the rear curved arm to open and close, so that the front template 3 and the rear template 4 move under the action of the optical axis 2. At this time, the gear 17 rotates, causing the front mold opening and closing synchronization rack rod 15 and the rear mold opening and closing synchronization rack rod 16 to move relative to each other, so that the mold closing position of the front template 3 and the rear template 4 is fixed.

[0034] The arm assembly 10 of the present invention consists of a driving arm 18 and a passive arm 19, which are movably connected to each other. The core function of the arm assembly 10 is to achieve telescopic adjustment during the mold opening and closing process, ensuring precise mold alignment and stable operation. The driving arm 18 is connected to the reduction gearbox 9. The rotational motion of the reduction gearbox 9 is transmitted through the driving arm 18 to the passive arm 19, causing the driving arm 18 and the passive arm 19 to fold or unfold, thereby controlling the length of the arm assembly 10. When the mold needs to be closed, the arm assembly 10 unfolds, causing the passive arm 19 to move forward, driving the first end of the front crank 5, pushing the front plate 3 and the rear plate 4 together. This allows the front plate 3 and the rear plate 4 to be accurately aligned in a short time, improving the speed and stability of mold closing. Conversely, the folding of the driving arm 18 and the passive arm 19 shortens the length of the arm assembly 10. This process causes the front crank 5 and the rear crank 6 to move closer together, separating the front plate 3 and the rear plate 4. The extension and retraction of the arm assembly 10 controls every movement during the mold opening and closing process, ensuring precise alignment and separation of the molds during mold closing and opening. The passive arm 19 comprises a connecting rod joint 20, a mold clamping link 21, and a curved link 22. The connecting rod joint 20 is fixedly connected to the mold clamping link 21 via a first fastener 23, and the mold clamping link 21 is fixedly connected to the curved link 22 via a second fastener 24. Adjusting the first and second fasteners 23 and 24 allows for flexible adjustment of the length of the mold clamping link 21. This structure allows the operator to adjust the initial length of the arm assembly 10 to accommodate molds of varying sizes. Because different mold sizes require varying opening and closing ranges, the adjustability of the arm assembly 10 provides the stacking bucket's fully electric mold opening and closing mechanism with high adaptability. In practice, by adjusting the length of the mold clamping link 21, operators can quickly adapt to molds of varying sizes, reducing downtime during mold changes and improving production efficiency. The flexibility of this structure not only improves the operating efficiency of the production line, but also reduces the labor costs of the enterprise during mold replacement and adjustment. The design of the boom assembly 10 fully considers the diverse production needs and ensures the efficiency and safety of the stacking barrel production process.

[0035] The front and rear mold plates 3 and 4 of the present invention are both fixedly mounted with auxiliary support plates 25. These auxiliary support plates 25 play a vital role in the overall mold structure, primarily providing additional support and enhancing the mold's stability and safety. The front and rear mold plates 3 and 4 are more than just simple supporting components; they also serve as the mold's mounting base, securing molds of varying sizes. The auxiliary support plates 25 facilitate mold mounting when used with molds of varying sizes. Due to the diverse sizes and shapes of molds, traditional mounting methods may not meet all mold requirements. The flexible mounting of the auxiliary support plates 25 allows the operator to adjust the mold's position and angle as needed, ensuring accurate and reliable mounting on the front and rear mold plates 3 and 4. This feature not only improves the mold's adaptability but also reduces the difficulty and time required for mold replacement. Furthermore, the auxiliary support plates 25 can be used to mount other sensor control components, which play a key role in monitoring and controlling the mold's opening and closing process. By installing control components such as sensors and limit switches on the auxiliary support plates 25, real-time monitoring of the mold's opening and closing status can be achieved. This monitoring function helps to provide timely feedback on the working status of the mold during the mold opening and closing process, ensuring that the mold operates within a safe range and reducing potential safety hazards.

[0036] The front and rear mold plates 3 and 4 of the present invention are fixedly mounted with limit rods 26. The primary function of these limit rods 26 is to limit the minimum distance between the front and rear mold plates 3 and 4, preventing them from colliding when the mold is not installed. This measure is crucial for ensuring safety and stability during the mold opening and closing process.

[0037] The frame 1 of the present invention is fixedly mounted with an assembly plate 27. The primary function of assembly plate 27 is to provide a stable platform for mounting the present invention on the injection molding machine. By effectively integrating the fully electric mold opening and closing mechanism of the stacking bucket with the injection molding machine, the entire system can be ensured to operate smoothly and the overall efficiency of the mold opening and closing process can be improved.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A fully electric mold opening and closing mechanism for stacking barrels, comprising a frame, characterized in that: The frame is fixedly mounted with an optical axis, a front template and a rear template are movably mounted on the optical axis, a front crank and a rear crank are movably mounted on the frame, a driving device is fixedly mounted on the first end of the rear crank, the driving device includes a motor and a reduction gearbox, the motor drives the reduction gearbox, the reduction gearbox is driven and connected to the first end of the front crank through an arm assembly, the front template is movably connected to the second end of the front crank through a front crank connecting piece, the rear template is movably connected to the second end of the rear crank through a rear crank connecting piece, and a symmetrical moving device is fixedly mounted on the frame.

2. The fully electric mold opening and closing mechanism for stacking barrels according to claim 1 is characterized in that: The symmetrical moving device includes a base, a front opening and closing mold synchronization rack rod and a rear opening and closing mold synchronization rack rod. The base is movably installed with a gear. The front opening and closing mold synchronization rack rod is meshed with the rear opening and closing mold synchronization rack rod through the gear. One end of the front opening and closing mold synchronization rack rod is fixedly connected to the front template, and the rear opening and closing mold synchronization rack rod is fixedly connected to the rear template.

3. The fully electric mold opening and closing mechanism for stacking barrels according to claim 1 is characterized in that: The movable arm assembly includes a driving arm and a passive arm, the driving arm is movably connected to the passive arm, the driving arm is drivingly connected to the reduction box, and the passive arm is movably connected to the first end of the front crank.

4. The fully electric mold opening and closing mechanism for stacking barrels according to claim 3 is characterized in that: The passive arm comprises a connecting rod joint, a mold locking connecting rod, and an arcuate connecting rod. The connecting rod joint is fixedly connected to the mold locking connecting rod through a first fastener, and the mold locking connecting rod is fixedly connected to the arcuate connecting rod through a second fastener.

5. The fully electric mold opening and closing mechanism for stacking barrels according to claim 1 is characterized in that: The front template and the rear template are both fixedly mounted with auxiliary support plates.

6. The fully electric mold opening and closing mechanism for stacking barrels according to claim 1 is characterized in that: The front template and the rear template are both fixedly mounted with limiting push rods.

7. The fully electric mold opening and closing mechanism for stacking barrels according to claim 1 is characterized in that: The frame is fixedly mounted with an assembly plate.

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