A thin injection molding part shaping mechanism with positioning structure

Abstract

The utility model provides a kind of thin injection molding part shaping mechanism with positioning structure, it includes support bearing assembly, workpiece positioning assembly, positioning switching assembly, switching drive component, workpiece shaping assembly and shaping drive component, the shaping mechanism is realized workpiece edge limit by the positioning slot of positioning vertical seat, switching support realizes bottom support, cooperate with the shaping end head of workpiece shape adaptation, effectively avoid the deviation and local stress concentration when thin piece shaping, replace manual operation by cylinder drive, switching cylinder and shaping cylinder can stably control the action of switching support and shaping end head, pressure degree and stroke are controllable, solve the problem of uneven manual operation force, guarantee shaping consistency, the discharge through-hole of support base plate can realize workpiece automatic discharge after shaping, each component can be connected to automatic control system, reduce manual intervention, adapt batch production demand, can reduce thin piece scratch, risk of breakage, fully adapt the fine shaping demand of thin injection molding part.

Description

Technical Field

[0001] This utility model relates to injection molding equipment, and more particularly to a thin injection molding shaping mechanism with a positioning structure. Background Technology

[0002] In the production of a thin injection molded part, due to the small wall thickness and low structural strength of its middle section, it is prone to deformation during the cooling process after injection molding. This deformation will directly cause the workpiece to fail to meet the design size requirements.

[0003] Conventional forming fixtures lack edge limiting and bottom support structures. Thin parts are prone to sagging or lateral shifting due to their own weight, leading to forming deviations. They rely on manual adjustment to control the quick clamping, and the applied pressure depends entirely on the operator's experience. This results in issues such as crushing or insufficient compaction of thin parts, leading to poor forming consistency. Therefore, it is necessary to optimize the structure to overcome these shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a shaping mechanism for thin injection molded parts with a positioning structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A thin injection molded part forming mechanism with a positioning structure, comprising:

[0007] A support and load-bearing assembly having a load-bearing space;

[0008] A workpiece positioning assembly is installed in a support and bearing assembly. The workpiece positioning assembly has a workpiece positioning space inside. The support and bearing assembly supports the workpiece positioning assembly, and the workpiece positioning assembly positions the workpiece.

[0009] A positioning switching component, which corresponds to the position of the workpiece positioning component and is adapted to the shape of the workpiece, switches the positioning state of the workpiece in the workpiece positioning component.

[0010] A switching drive component is installed in the support bearing component and is engaged with the positioning switching component. The switching drive component drives the positioning switching component to operate.

[0011] A workpiece shaping component is positioned corresponding to the workpiece positioning component and adapted to the shape of the workpiece. The workpiece shaping component performs shaping operations on the workpiece in the workpiece positioning component.

[0012] A shaping drive assembly is installed in the support bearing assembly and engages with the workpiece shaping assembly, thereby driving the workpiece shaping assembly to operate.

[0013] Specifically, the support and load-bearing components include:

[0014] A support base plate is arranged laterally, forming a bearing space at the top of the support base plate. A discharge port is provided in the support base plate, which extends through the upper and lower sides of the support base plate. Its size is larger than the size of the workpiece, and the shaped workpiece can be discharged from the discharge port.

[0015] The workpiece positioning assembly includes:

[0016] The positioning stand is provided in pairs, with each positioning stand installed on the top of the support base plate. They are arranged on both sides of the discharge port and protrude upwards from the support base plate. Each positioning stand has a positioning slot on its inner wall. Each positioning slot is arranged vertically and communicates with the discharge port. The positioning slots form a workpiece positioning space. The edge of the workpiece can be placed in the positioning slot and positioned by the positioning stand, so that the workpiece can move along the positioning slot to the discharge port.

[0017] The location switching component includes:

[0018] The switching bracket is located above the support base plate and corresponds to the workpiece positioning space. It can move in and out of the workpiece positioning space. Its top is adapted to the shape of the bottom of the workpiece. When the switching bracket enters the workpiece positioning space, it can support the bottom of the workpiece and fix it in the workpiece positioning space. When the switching bracket moves out of the workpiece positioning space, the workpiece can move along the positioning socket to the discharge port and be discharged outward from the discharge port.

[0019] Switching driver components includes:

[0020] A switching cylinder has its cylinder body mounted on the top of the support base plate, and its piston rod extends toward the workpiece positioning space and engages with the switching bracket. The switching cylinder drives the switching bracket to move in and out of the workpiece positioning space.

[0021] The workpiece shaping assembly includes:

[0022] The shaping end is located above the support base plate and corresponds to the workpiece positioning space. It can enter and exit the middle of the workpiece positioning space. Its end is adapted to the shape of the middle part of the workpiece. When the shaping end enters the workpiece positioning space, it can apply pressure to the middle part of the workpiece and hold it, so that the shape of the middle part is shaped.

[0023] The shaping drive component includes:

[0024] A shaping carrier is mounted on top of a support base plate and protrudes upwards from the support base plate;

[0025] A shaping cylinder has its cylinder body mounted on top of the shaping carrier, and its piston rod extends toward the workpiece positioning space and engages with the shaping end. The shaping cylinder drives the shaping end to move in and out of the workpiece positioning space.

[0026] The advantages of this utility model are:

[0027] This forming mechanism uses the positioning slot of the positioning stand to limit the edge of the workpiece and the switching bracket to provide bottom support. With the forming end head that matches the shape of the workpiece, it effectively avoids the deviation and local stress concentration during the forming of thin parts. The cylinder drive replaces manual operation. The switching cylinder and the forming cylinder can stably control the movement of the switching bracket and the forming end head. The pressure and stroke are controllable, which solves the problem of uneven force in manual operation and ensures the consistency of forming. The discharge port of the support base plate can realize the automatic discharge of the workpiece after forming. All components can be connected to the automated control system to reduce manual intervention, adapt to the needs of mass production, reduce the risk of scratches and breakage of thin parts, and fully adapt to the fine forming needs of thin injection molded parts. Attached Figure Description

[0028] Figure 1 This is one of the structural schematic diagrams of the thin injection molded part forming mechanism with positioning structure proposed in this utility model;

[0029] Figure 2 This is the second structural diagram of the shaping mechanism. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] like Figure 1 , Figure 2As shown, the thin injection molded part forming mechanism with a positioning structure proposed in this utility model includes a support and bearing assembly, a workpiece positioning assembly, a positioning switching assembly, a switching drive assembly, a workpiece forming assembly, and a forming drive assembly. The support and bearing assembly has a bearing space. The workpiece positioning assembly is installed in the support and bearing assembly and has a workpiece positioning space inside. The support and bearing assembly supports the workpiece positioning assembly, and the workpiece positioning assembly positions the workpiece. The positioning switching assembly corresponds to the position of the workpiece positioning assembly and is adapted to the shape of the workpiece. The positioning switching assembly switches the positioning state of the workpiece in the workpiece positioning assembly. The switching drive assembly is installed in the support and bearing assembly and engages with the positioning switching assembly. The switching drive assembly drives the positioning switching assembly to run. The workpiece forming assembly corresponds to the position of the workpiece positioning assembly and is adapted to the shape of the workpiece. The workpiece forming assembly performs a forming operation on the workpiece in the workpiece positioning assembly. The forming drive assembly is installed in the support and bearing assembly and engages with the workpiece forming assembly. The forming drive assembly drives the workpiece forming assembly to run.

[0032] In this embodiment, the support bearing assembly includes a support base plate 100, which is arranged laterally and forms a bearing space on the top of the support base plate. A discharge port 110 is provided in the support base plate, which passes through the upper and lower sides of the support base plate and has a size larger than the size of the workpiece. The shaped workpiece can be discharged from the discharge port.

[0033] The workpiece positioning assembly includes a positioning stand 200. There is a pair of positioning stands, each of which is installed on the top of the support base plate. They are arranged on both sides of the discharge port and protrude upwards from the support base plate. Each positioning stand has a positioning slot 210 on its inner wall. Each positioning slot is arranged vertically and communicates with the discharge port. The positioning slots enclose a workpiece positioning space. The edge of the workpiece can be placed in the positioning slot and positioned by the positioning stand, so that the workpiece can move along the positioning slot to the discharge port.

[0034] The positioning and switching assembly includes a switching bracket 300, which is located above the support base plate and corresponds to the workpiece positioning space. It can move in and out of the workpiece positioning space. Its top is adapted to the shape of the bottom of the workpiece. When the switching bracket enters the workpiece positioning space, it can support the bottom of the workpiece and fix it in the workpiece positioning space. When the switching bracket moves out of the workpiece positioning space, the workpiece can move along the positioning slot to the discharge port and be discharged outward from the discharge port.

[0035] The switching drive assembly includes a switching cylinder 400. The cylinder body of the switching cylinder is mounted on the top of the support base plate, and its piston rod extends toward the workpiece positioning space and engages with the switching bracket. The switching cylinder drives the switching bracket to move in and out of the workpiece positioning space.

[0036] The workpiece shaping assembly includes a shaping end 500, which is located above the support base plate and corresponds to the workpiece positioning space. It can enter and exit the middle of the workpiece positioning space. Its end is adapted to the shape of the middle part of the workpiece. When the shaping end enters the workpiece positioning space, it can apply pressure to the middle part of the workpiece and hold it, so that the shape of the middle part is shaped.

[0037] The shaping drive assembly includes a shaping carrier 610 and a shaping cylinder 620. The shaping carrier is mounted on the top of the support base plate and protrudes upwards from the support base plate. The cylinder body of the shaping cylinder is mounted on the top of the shaping carrier, and its piston rod extends toward the workpiece positioning space and engages with the shaping end. The shaping cylinder drives the shaping end to move in and out of the workpiece positioning space.

[0038] In use, first activate the switching cylinder of the switching drive assembly. The piston rod of the switching cylinder extends towards the workpiece positioning space, driving the switching bracket of the positioning switching assembly to move into the workpiece positioning space. The operator places the thin injection molded part (workpiece) to be shaped into the workpiece positioning space of the support and bearing assembly, so that the edge of the workpiece is embedded into the positioning groove of the positioning stand in the workpiece positioning assembly. The top of the switching bracket matches the shape of the bottom of the workpiece, accurately supporting the bottom of the workpiece and preventing the thin workpiece from sagging due to its own weight. At the same time, it works with the positioning groove to form a double fixation of edge limiting and bottom support, ensuring that the workpiece maintains a stable posture during the shaping process. During this process, it is important to note that the direction of deformation protrusion in the middle section of the workpiece should be opposite to the direction of force applied at the shaping end.

[0039] Then, the shaping cylinder of the shaping drive assembly is activated: the cylinder body of the shaping cylinder is fixed on the shaping carrier, and its piston rod extends towards the workpiece positioning space, driving the shaping end of the workpiece shaping assembly closer to the center of the workpiece. Because the end of the shaping end matches the shape of the center of the workpiece, it will precisely fit the center of the workpiece and apply stable pressure. By continuously maintaining this pressure, the deformation of the center of the workpiece caused by injection molding is corrected, so that the shape of the center of the workpiece meets the design requirements.

[0040] After the shaping process is completed, the piston rod of the shaping cylinder is first controlled to retract, causing the shaping end to detach from the center of the workpiece and reset. Then, the piston rod of the switching cylinder is controlled to retract, causing the switching bracket to move out from the bottom of the workpiece, releasing the bottom support of the workpiece. At this point, the workpiece, having lost its support, will naturally fall into the discharge port of the support plate along the vertical guide of the positioning groove, and finally be discharged from the discharge port to the downstream collection or conveying equipment, completing the entire shaping process and allowing it to enter the shaping cycle of the next workpiece.

[0041] In the description of this utility model, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A thin injection molded part forming mechanism with a positioning structure, characterized in that, include: A support and load-bearing assembly having a load-bearing space; A workpiece positioning assembly is installed in a support and bearing assembly. The workpiece positioning assembly has a workpiece positioning space inside. The support and bearing assembly supports the workpiece positioning assembly, and the workpiece positioning assembly positions the workpiece. A positioning switching component, which corresponds to the position of the workpiece positioning component and is adapted to the shape of the workpiece, switches the positioning state of the workpiece in the workpiece positioning component. A switching drive component is installed in the support bearing component and is engaged with the positioning switching component. The switching drive component drives the positioning switching component to operate. A workpiece shaping component is positioned corresponding to the workpiece positioning component and adapted to the shape of the workpiece. The workpiece shaping component performs shaping operations on the workpiece in the workpiece positioning component. A shaping drive assembly is installed in the support bearing assembly and engages with the workpiece shaping assembly, thereby driving the workpiece shaping assembly to operate.

2. The thin injection molded part forming mechanism with a positioning structure according to claim 1, characterized in that, The support and load-bearing components include: A support base plate is arranged laterally, forming a bearing space at the top of the support base plate. A discharge port is provided in the support base plate, which extends through the upper and lower sides of the support base plate and its size is larger than the size of the workpiece.

3. The thin injection molded part forming mechanism with a positioning structure according to claim 2, characterized in that, The workpiece positioning assembly includes: The positioning stand is provided in pairs. Each positioning stand is installed on the top of the support base plate and is arranged on both sides of the discharge port. It protrudes upwards from the support base plate. Each positioning stand has a positioning slot on its inner wall. Each positioning slot is arranged vertically and communicates with the discharge port. The positioning slots enclose a workpiece positioning space, and the edge of the workpiece can be placed in the positioning slot.

4. The thin injection molded part forming mechanism with a positioning structure according to claim 3, characterized in that, The location switching component includes: A switching bracket is located above the support base plate and corresponds to the workpiece positioning space. It can move in and out of the workpiece positioning space, and its top is adapted to the shape of the bottom of the workpiece.

5. A thin injection molded part forming mechanism with a positioning structure according to claim 4, characterized in that, Switching driver components includes: A switching cylinder has its cylinder body mounted on the top of the support base plate, and its piston rod extends toward the workpiece positioning space and engages with the switching bracket.

6. A thin injection molded part forming mechanism with a positioning structure according to claim 3, characterized in that, The workpiece shaping assembly includes: The shaping end is located above the support base plate and corresponds to the workpiece positioning space. It can enter and exit the middle of the workpiece positioning space, and its end is adapted to the shape of the middle part of the workpiece.

7. A thin injection molded part forming mechanism with a positioning structure according to claim 6, characterized in that, The shaping drive component includes: A shaping carrier is mounted on top of a support base plate and protrudes upwards from the support base plate; A shaping cylinder, the cylinder body of which is mounted on the top of the shaping carrier, and its piston rod extends toward the workpiece positioning space and engages with the shaping end.

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