A plastic mold with quick material replacement

Abstract

The utility model relates to the technical field of plastic mould, concretely to a plastic mould of quick material replacement, including lower mould base and forming interval, the inside of lower mould base is opened at forming interval, the bottom of forming interval is provided with pushing mechanism. The plastic mould of quick material replacement, when plastic raw material is complete injection moulding after forming interval, mould opens, first electric push rod energization starts, makes first push rod stretch out. At this moment, first push rod will transmit the thrust to the lifting plate, because four push rods are evenly distributed in the bottom four corners of the lifting plate, can balance the force, drive the lifting plate to rise vertically and stably in the forming interval, push out the plastic product after forming from the bottom of forming interval, so that manual or mechanical hand carries out the pick-up operation. After the pick-up is completed, the first electric push rod piston rod retracts, and the push rod drives the lifting plate to fall back to the initial position, completes a pushing material cycle, and waits for the start of the next injection molding process.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, specifically a plastic mold for quick material replacement. Background Technology

[0002] Plastic molds are the "mother of industry" in modern manufacturing. By injecting molten plastic into a precisely designed cavity, and then allowing it to cool and solidify, they mold parts to meet various needs. From everyday items like mobile phone casings and home appliance components to automotive interiors and medical devices, countless plastic products rely on plastic molds. Their design precision and manufacturing processes directly determine product quality and production efficiency. With the development of intelligent manufacturing and new materials technologies, plastic molds are constantly innovating towards higher precision, longer lifespan, and greater intelligence, continuously providing solid technical support for various industries.

[0003] In actual use, the material change speed of plastic molds is relatively slow, which increases the time required for unloading finished products and is not conducive to rapid product processing. Therefore, we have proposed a plastic mold that allows for rapid material change. Utility Model Content

[0004] The purpose of this invention is to provide a plastic mold for quick material replacement, so as to solve the problem of slow material replacement speed mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick-change material plastic mold includes a lower mold base and a molding chamber, wherein the molding chamber is opened inside the lower mold base and a material pushing mechanism is provided at the bottom of the molding chamber;

[0007] The material pushing mechanism includes a lifting plate, a first pushing rod, a first electric pushing rod, and a base. The lifting plate is movably disposed inside the forming chamber. The first pushing rod is fixedly disposed at the bottom of the lifting plate. The first pushing rod is distributed at the four corners of the bottom of the lifting plate. The first electric pushing rod is disposed at the bottom of the first pushing rod. The base is fixedly disposed at the bottom of the first electric pushing rod.

[0008] The four corners of the base and the lower mold base are fixedly connected by support columns, and a ventilation pipe is fixedly installed on the top of the base.

[0009] The ventilation duct has a ventilation opening on one side and several exhaust pipes fixedly installed on the top of the ventilation duct.

[0010] The exhaust pipe and the ventilation pipe are internally connected, and a fixing frame is fixedly installed inside the ventilation opening.

[0011] A fan is provided on one side of the fixed frame, and an upper mold base is movably provided on the top of the lower mold base.

[0012] The upper mold base has an injection port at its top, and a second push rod is fixedly installed at both ends of the top of the upper mold base. A second electric push rod is installed at the top of the second push rod.

[0013] The second electric push rod has a top plate fixedly installed on its top, a fixing plate fixedly installed on one side of the top plate, and the bottom of the fixing plate fixedly installed on one side of the lower mold base. A controller is fixedly installed at the front of the lower mold base, and the controller is electrically connected to the first electric push rod, the fan, and the second electric push rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This is a quick-change material plastic mold. After the plastic raw material is injection molded in the molding chamber, the mold opens, and the first electric push rod is energized and activated, causing the first push rod to extend. At this time, the first push rod transmits the thrust to the lifting plate. Since the four push rods are evenly distributed at the four corners of the bottom of the lifting plate, the force can be balanced, driving the lifting plate to rise vertically and smoothly in the molding chamber, pushing the molded plastic product out from the bottom of the molding chamber for manual or robotic arm removal. After removal is completed, the piston rod of the first electric push rod retracts, and the push rod drives the lifting plate back to the initial position, completing one material pushing cycle, waiting for the next injection molding process to begin.

[0016] 2. In this type of quick-change material plastic mold, after injection molding, the ventilation pipe at the top of the base plays a role. The fan is installed on the fixed frame inside the ventilation port. After starting, air enters the ventilation pipe through the ventilation port and is discharged through the exhaust pipe at the top, realizing heat dissipation and ventilation of the bottom of the lower mold base, accelerating the product to quickly detach from the lower mold base, avoiding sticking and causing demolding difficulties. At the same time, the controller controls the second electric push rod to drive the second push rod to retract, so that the upper mold base can rise, thereby cooperating to remove the product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the top structure of the base of this utility model;

[0019] Figure 3 This is a schematic diagram of the top structure of the upper mold base of this utility model;

[0020] Figure 4 This is a schematic diagram of the ventilation duct structure of this utility model.

[0021] In the diagram: 1. Lower mold base; 2. Molding chamber; 3. Lifting plate; 4. First push rod; 5. First electric push rod; 6. Base; 7. Ventilation pipe; 8. Ventilation opening; 9. Exhaust pipe; 10. Fixing frame; 11. Fan; 12. Upper mold base; 13. Injection port; 14. Second push rod; 15. Second electric push rod; 16. Top plate; 17. Fixing plate; 18. Controller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 - Figure 4 As shown, this utility model provides a technical solution:

[0024] A quick-change material plastic mold includes a lower mold base 1 and a molding chamber 2. The molding chamber 2 is opened inside the lower mold base 1, and a pushing mechanism is provided at the bottom of the molding chamber 2.

[0025] The material pushing mechanism includes a lifting plate 3, a first push rod 4, a first electric push rod 5, and a base 6. The lifting plate 3 is movably disposed inside the forming chamber 2. The first push rod 4 is fixedly disposed at the bottom of the lifting plate 3. The first push rod 4 is distributed at the four corners of the bottom of the lifting plate 3. The first electric push rod 5 is disposed at the bottom of the first push rod 4. The base 6 is fixedly disposed at the bottom of the first electric push rod 5.

[0026] Through the above scheme, after the plastic raw material is injection molded in the molding chamber 2, the mold opens, and the first electric push rod 5 is energized, causing the first push rod 4 to extend. At this time, the first push rod 4 transmits the pushing force to the lifting plate 3. Since the four push rods are evenly distributed at the four corners of the bottom of the lifting plate 3, they can apply force in a balanced manner, driving the lifting plate 3 to rise vertically and smoothly in the molding chamber 2, pushing the molded plastic product out from the bottom of the molding chamber 2 so that it can be picked up manually or by a robot. After the part is picked up, the piston rod of the first electric push rod 5 retracts, and the push rod drives the lifting plate 3 back to the initial position, completing one pushing cycle, waiting for the next injection molding process to begin.

[0027] The four corners of the base 6 and the lower mold base 1 are fixedly connected by support columns, and a ventilation pipe 7 is fixedly installed on the top of the base 6.

[0028] Ventilation vent 8 is provided on one side of ventilation pipe 7, and several exhaust pipes 9 are fixedly installed on the top of ventilation pipe 7.

[0029] The exhaust pipe 9 and the ventilation pipe 7 are internally connected, and the ventilation opening 8 is fixedly equipped with a fixing frame 10.

[0030] A fan 11 is provided on one side of the fixed frame 10, and an upper mold base 12 is movably provided on the top of the lower mold base 1.

[0031] The upper mold base 12 has an injection port 13 at its top, and a second push rod 14 is fixedly installed at both ends of the top of the upper mold base 12. A second electric push rod 15 is installed at the top of the second push rod 14.

[0032] The top of the second electric push rod 15 is fixedly provided with a top plate 16, a fixing plate 17 is fixedly provided on one side of the top plate 16, the bottom of the fixing plate 17 is fixedly provided on one side of the lower mold base 1, and a controller 18 is fixedly provided at the front of the lower mold base 1. The controller 18 is electrically connected to the first electric push rod 5, the fan 11, and the second electric push rod 15.

[0033] With the above scheme, after injection molding is completed, the ventilation pipe 7 at the top of the base 6 plays a role. The fan 11 is installed on the fixed frame 10 inside the ventilation port 8. After starting, the air enters the ventilation pipe 7 through the ventilation port 8 and is discharged through the exhaust pipe 9 at the top, realizing heat dissipation and ventilation of the bottom of the lower mold base 1, accelerating the product to quickly detach from the lower mold base 1, avoiding sticking and causing demolding difficulties. At the same time, the controller 18 controls the second electric push rod 15 to drive the second push rod 14 to retract, so that the upper mold base 12 can rise, thereby helping to remove the product.

[0034] In this embodiment, a quick-change material plastic mold is used after injection molding. The ventilation pipe 7 at the top of the base 6 then functions. A fan 11 is mounted on a fixed frame 10 inside the ventilation opening 8. Upon startup, air enters the ventilation pipe 7 through the ventilation opening 8 and exits through the exhaust pipe 9 at the top, achieving heat dissipation and ventilation of the bottom of the lower mold base 1. This accelerates the product's rapid detachment from the lower mold base 1, preventing sticking and demolding difficulties. Simultaneously, the controller 18 controls the second electric push rod 15 to retract the second push rod 14, allowing the upper mold base 12 to rise. Then, the controller 18 powers on the first electric push rod 5, extending the first push rod 4. At this time, the first push rod 4 transmits thrust to the lifting plate 3. Since the four push rods are evenly distributed at the four corners of the bottom of the lifting plate 3, they apply balanced force, causing the lifting plate 3 to rise vertically and smoothly within the molding chamber 2, pushing the molded plastic product out from the bottom of the molding chamber 2 for manual or robotic removal. Once the part is retrieved, the piston rod of the first electric push rod 5 retracts, and the push rod drives the lifting plate 3 back to its initial position, completing one material pushing cycle and waiting for the start of the next injection molding process.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-change material plastic mold, comprising a lower mold base (1) and a molding chamber (2), characterized in that: The molding chamber (2) is located inside the lower mold base (1), and a pushing mechanism is provided at the bottom of the molding chamber (2); The material pushing mechanism includes a lifting plate (3), a first push rod (4), a first electric push rod (5), and a base (6). The lifting plate (3) is movably arranged inside the forming chamber (2). The first push rod (4) is fixedly arranged at the bottom of the lifting plate (3). The first push rod (4) is distributed at the four corners of the bottom of the lifting plate (3). The first electric push rod (5) is arranged at the bottom of the first push rod (4). The base (6) is fixedly arranged at the bottom of the first electric push rod (5).

2. The plastic mold for quick material replacement according to claim 1, characterized in that: The four corners of the base (6) and the lower mold base (1) are fixedly connected by support columns, and a ventilation pipe (7) is fixedly installed on the top of the base (6).

3. A quick-change material plastic mold according to claim 2, characterized in that: A ventilation opening (8) is provided on one side of the ventilation pipe (7), and several exhaust pipes (9) are fixedly installed on the top of the ventilation pipe (7).

4. A quick-change material plastic mold according to claim 3, characterized in that: The exhaust pipe (9) and the ventilation pipe (7) are internally connected, and a fixing frame (10) is fixedly installed inside the ventilation opening (8).

5. A quick-change material plastic mold according to claim 4, characterized in that: A fan (11) is provided on one side of the fixed frame (10), and an upper mold base (12) is movably provided on the top of the lower mold base (1).

6. A quick-change material plastic mold according to claim 5, characterized in that: The upper mold base (12) has an injection port (13) at its top. The upper mold base (12) has two fixed ends with second push rods (14) at its top. The second push rods (14) have a second electric push rod (15) at their top.

7. A quick-change material plastic mold according to claim 6, characterized in that: A top plate (16) is fixedly installed on the top of the second electric push rod (15), a fixing plate (17) is fixedly installed on one side of the top plate (16), the bottom of the fixing plate (17) is fixedly installed on one side of the lower mold base (1), and a controller (18) is fixedly installed at the front of the lower mold base (1). The controller (18) is electrically connected to the first electric push rod (5), the fan (11), and the second electric push rod (15).

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