Injection molding part separation equipment

Abstract

The utility model discloses injection molding part separation equipment, and relates to the technical field of injection molding. The injection molding part separation equipment comprises an injection molding table, a fixing frame is fixed to the rear side of the top of the injection molding table, a lower mold is arranged in the center of the top of the injection molding table, a hydraulic cylinder is installed at the top of the fixing frame, and the telescopic end of the hydraulic cylinder penetrates through the fixing frame, is connected with an upper mold and is matched with the lower mold; a first vertical rod is movably arranged in the first barrel, the upper end of the first vertical rod is connected with the guide plate, a first push plate is fixed to the lower end of the first vertical rod, a second barrel is arranged on the lower side of the injection molding table and matched with an inner cavity of the first barrel, and a first liquid conveying pipe is communicated between the first barrel and the second barrel; and an ejection mechanism is arranged between the second barrel body and the lower mold, so that the ejection mechanism is conveniently driven to eject the injection molded part upwards when the upper mold is adjusted to move upwards after injection molding is finished.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding, and particularly relates to an injection molded part separating device. Background Art

[0002] Injection molding is a method for manufacturing industrial product shapes. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding, compression molding, and die casting methods. Specifically, it means that the heated and melted plastic is injected into the mold cavity by a high-pressure injection molding machine. After cooling and solidification, a formed product is obtained.

[0003] Publication No.: CN220280394U, discloses: an injection molded part separating and demolding device. By controlling the start of a double-shaft motor, the first rotating rod is driven to rotate. Through the rotation of the first rotating rod, the first transmission wheel is driven to rotate. Through the setting of the transmission belt, when the first transmission wheel rotates, the second transmission wheel can be driven to rotate, and then the second rotating rod is driven to rotate, so that the cooling fan blades can rotate to generate wind, and then the surface of the lower mold can be cooled. At the same time, by controlling the start of the second electric push rod, the second telescopic rod is driven to move longitudinally, and then the push plate is driven to move longitudinally to drive the product to be demolded.

[0004] The above-mentioned prior art still has the following disadvantages in the specific implementation process:

[0005] During the injection molding process, a double-shaft motor is required for cooling the injection molded parts, and a second electric push rod is required for demolding the injection molded parts. The operation of both the double-shaft motor and the second electric push rod requires additional power drive, which increases the manufacturing, use, and later maintenance costs of the device. If the double-shaft motor fails, the cooling of the injection molded parts cannot be achieved. If the second electric push rod fails, the demolding of the injection molded parts cannot be achieved, affecting the smooth progress of the injection molding operation and having a poor use effect.

[0006] In view of the above problems, we propose an injection molded part separating device. Content of the Utility Model

[0007] Technical Solution

[0008] To solve the above technical problems, the present utility model provides an injection molding part separation device, which includes an injection molding table and a fixing frame fixed to the rear side of the top of the injection molding table. A lower mold is arranged at the center of the top of the injection molding table. A hydraulic cylinder is installed on the top of the fixing frame. The telescopic end of the hydraulic cylinder passes through the fixing frame and is connected to an upper mold, which cooperates with the lower mold. A guiding groove penetrates through the rear surface of the fixing frame. A guiding plate is fixed to the rear end surface of the upper mold and cooperates with the guiding groove. A first cylinder is arranged at the rear side of the injection molding table. A first vertical rod is movably arranged inside the first cylinder. The upper end of the first vertical rod is connected to the guiding plate, and the lower end of the first vertical rod is fixed with a first push plate, which is movably matched with the inner cavity of the first cylinder. A second cylinder is arranged below the injection molding table. A first infusion pipe is connected between the first cylinder and the second cylinder. A top-out mechanism is arranged between the second cylinder and the lower mold. The inside of the first cylinder is filled with cooling water.

[0009] A cooling cavity is opened inside the lower mold. A second infusion pipe is connected to the rear surface of the lower mold and is communicated with the cooling cavity. The end of the second infusion pipe far away from the lower mold passes through the injection molding table and is connected to the first infusion pipe.

[0010] The top-out mechanism includes a second push plate, a second vertical rod, a movable plate, a top rod, a top-out plate, a first spring and a second spring. The second push plate is movably arranged inside the inner cavity of the second cylinder. The second vertical rod is movably matched with the second cylinder. The lower end of the second vertical rod is connected to the second push plate, and the upper end of the second vertical rod is fixedly connected to the movable plate. The top-out plate is movably matched with the cavity of the lower mold. Two through holes are opened at the bottom of the cavity of the lower mold, and the through holes penetrate through the injection molding table. The top rod is movably arranged inside the through holes, and the upper and lower ends of the top rod are respectively fixedly connected to the top-out plate and the movable plate.

[0011] The first spring is fixedly connected between the bottom of the injection molding table and the movable plate. The second spring is connected between the top of the second push plate and the inner wall of the second cylinder, and the second spring is sleeved outside the second vertical rod.

[0012] An injection pipe is also installed on the top of the upper mold. A support frame is fixed to the bottom of the injection molding table. A guiding rod is fixed inside the guiding groove, and the guiding rod penetrates through the guiding plate. The guiding plate is movably matched with the guiding rod.

[0013] An L-shaped bracket is fixed to the rear side of the support frame. The first cylinder is arranged on the top of the L-shaped bracket. A liquid injection pipe and a liquid discharge pipe are respectively communicated with the upper and lower sides of the rear surface of the first cylinder. Valves are installed on both the liquid injection pipe and the liquid discharge pipe. A transparent plate is arranged on the first cylinder.

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

[0015] The utility model facilitates the pushing of the upper mold downward close to the lower mold through a hydraulic cylinder. During the downward movement of the upper mold, the guide plate is driven to move downward synchronously, and then the first vertical rod is driven to move into the inner cavity of the first cylinder. The first vertical rod drives the first push plate to move downward along the inner cavity of the first cylinder, extruding the cooling water inside the first cylinder outward and flowing it into the second cylinder through the first infusion pipe, driving the ejection mechanism to move downward, facilitating the injection molding operation. At the same time, after the injection molding is completed, when adjusting the upper mold to move upward away from the lower mold, the first vertical rod drives the first push plate to move upward along the inner cavity of the first cylinder. Combined with the air pressure effect, a suction action is formed inside the first cylinder. Under the action of the first infusion pipe, the cooling water inside the second cylinder is pumped out, and then the ejection mechanism is driven upward to eject the injection molded part in the cavity of the lower mold, realizing the rapid separation of the injection molded part from the lower mold and achieving the purpose of demoulding;

[0016] During the up and down movement of the first vertical rod and the first push plate, combined with the second infusion pipe, the cooling water inside the first cylinder is squeezed into the cooling cavity, and after the injection molding is completed, the cooling water is pumped out, facilitating the cooling and temperature reduction of the injection molded part. With less use of electrical appliances, the cooling and separation demoulding of the injection molded part do not require additional electric drive, effectively reducing the manufacturing, use, and maintenance costs of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 is a top view of the utility model;

[0019] Figure 3 is Figure 2 a schematic diagram of the structure of section A-A in;

[0020] Figure 4 is Figure 3 a schematic diagram of the structure of section B-B in;

[0021] Figure 5 is Figure 3 a schematic diagram of the enlarged structure at C in;

[0022] Figure 6 is Figure 4 a schematic diagram of the enlarged structure at D in;

[0023] Figure 7 is Figure 1 a schematic diagram of the structure from another perspective;

[0024] Figure 8 is Figure 7 a schematic diagram of the enlarged structure at E in.

[0025] The reference numerals in the drawings are: 1, injection molding table; 2, fixing frame; 3, lower mold; 4, hydraulic cylinder; 5, upper mold; 6, guide groove; 7, guide plate; 8, first cylinder; 9, first push plate; 10, first vertical rod; 11, second cylinder; 12, first infusion tube; 13, cooling cavity; 14, second infusion tube; 15, second push plate; 16, second vertical rod; 17, movable plate; 18, ejector rod; 19, ejector plate; 20, first spring; 21, second spring; 22, support frame. Detailed implementation manner

[0026] This detailed implementation manner is an injection molded part separating device, as Figures 1-8 shown. This injection molded part separating device includes an injection molding table 1 and a fixing frame 2 fixed to the rear side of the top of the injection molding table 1. A lower mold 3 is arranged at the center of the top of the injection molding table 1. A hydraulic cylinder 4 is installed at the top of the fixing frame 2. The telescopic end of the hydraulic cylinder 4 passes through the fixing frame 2 and is connected with an upper mold 5, which cooperates with the lower mold 3. A guide groove 6 penetrates through the rear surface of the fixing frame 2. A guide plate 7 is fixed to the rear end face of the upper mold 5 and cooperates with the guide groove 6. A first cylinder 8 is arranged at the rear side of the injection molding table 1. A first vertical rod 10 is movably arranged inside the first cylinder 8. The upper end of the first vertical rod 10 is connected with the guide plate 7. The lower end of the first vertical rod 10 is fixed with a first push plate 9, which is movably matched with the inner cavity of the first cylinder 8. A second cylinder 11 is arranged below the injection molding table 1. A first infusion tube 12 is communicated between the first cylinder 8 and the second cylinder 11. A top ejection mechanism is arranged between the second cylinder 11 and the lower mold 3. The inside of the first cylinder 8 is filled with cooling water.

[0027] The hydraulic cylinder 4 facilitates pushing the upper mold 5 downward to approach the lower mold 3. During the downward movement of the upper mold 5, the guide plate 7 is driven to move downward synchronously, and then the first vertical rod 10 is driven to move into the inner cavity of the first cylinder 8. The first push plate 9 is driven by the first vertical rod 10 to move downward along the inner cavity of the first cylinder 8, extruding the cooling water inside the first cylinder 8 outwards. The cooling water flows into the inside of the second cylinder 11 through the first infusion tube 12, driving the top ejection mechanism to move downward, facilitating the injection molding operation. At the same time, after the injection molding is completed, when adjusting the upper mold 5 to move upward away from the lower mold 3, the first push plate 9 is driven by the first vertical rod 10 to move upward along the inner cavity of the first cylinder 8. Combining with the air pressure effect, a suction action is formed inside the first cylinder 8. Under the action of the first infusion tube 12, the cooling water inside the second cylinder 11 is pumped out, and then the top ejection mechanism is driven to move upward, ejecting the injection molded part in the cavity of the lower mold 3, realizing the rapid separation of the injection molded part from the lower mold 3 and achieving the purpose of demolding.

[0028] A cooling cavity 13 is opened inside the lower mold 3. A second infusion tube 14 is connected to the rear surface of the lower mold 3. The second infusion tube 14 is communicated with the cooling cavity 13. The end of the second infusion tube 14 far away from the lower mold 3 passes through the injection molding table 1 and is communicated with the first infusion tube 12.

[0029] The ejection mechanism includes a second push plate 15, a second vertical rod 16, a movable plate 17, an ejector rod 18, an ejection plate 19, a first spring 20 and a second spring 21. The second push plate 15 is movably arranged in the inner cavity of the second cylinder 11. The second vertical rod 16 is movably matched with the second cylinder 11. The lower end of the second vertical rod 16 is connected to the second push plate 15, and the upper end of the second vertical rod 16 is fixedly connected to the movable plate 17. The ejection plate 19 is movably matched with the cavity of the lower mold 3. Two through holes are opened at the bottom of the cavity of the lower mold 3, and the through holes penetrate through the injection platform 1. The ejector rod 18 is movably arranged in the through holes, and the upper and lower ends of the ejector rod 18 are respectively fixedly connected to the ejection plate 19 and the movable plate 17. The first spring 20 is fixedly connected between the bottom of the injection platform 1 and the movable plate 17. The second spring 21 is connected between the top of the second push plate 15 and the inner wall of the second cylinder 11, and the second spring 21 is sleeved outside the second vertical rod 16.

[0030] An injection pipe is also installed on the top of the upper mold 5. A support frame 22 is fixed at the bottom of the injection platform 1. A guide rod is fixed in the guide groove 6, and the guide rod penetrates through the guide plate 7. The guide plate 7 is movably matched with the guide rod, which effectively limits and guides the guide plate 7. An L-shaped bracket is fixed at the rear side of the support frame 22. The first cylinder 8 is arranged on the top of the L-shaped bracket, and the L-shaped bracket plays a role in supporting and stabilizing the first cylinder 8. A liquid injection pipe and a liquid discharge pipe are respectively communicated with the upper and lower sides of the rear surface of the first cylinder 8. Valves are installed on both the liquid injection pipe and the liquid discharge pipe, which is convenient for the injection and discharge of the cooling water inside the first cylinder 8. A transparent plate is arranged on the first cylinder 8, which is convenient for observing the liquid level of the cooling water inside the first cylinder 8.

[0031] Embodiment:

[0032] In the initial state, the hydraulic cylinder 4 is in a contracted state, and the upper mold 5 is at the highest position. At this time, the guide plate 7 is located at the uppermost side of the guide groove 6, so that the first push plate 9 is located at the uppermost side of the inner cavity of the first cylinder 8. At this time, under the elastic action of the first spring 20 and the second spring 21, the ejection plate 19 is driven to be located at the upper port of the lower mold 3, and the second push plate 15 is located below the connection between the first infusion pipe 12 and the second cylinder 11;

[0033] When performing injection molding operations, drive the hydraulic cylinder 4 to extend, drive the upper mold 5 to move downward, and at the same time, under the action of the guide rod, drive the guide plate 7 to move steadily downward in the vertical direction, and then drive the first vertical rod 10 to move into the inner cavity of the first cylinder 8. Drive the first push plate 9 to move downward along the inner cavity of the first cylinder 8 through the first vertical rod 10, and then squeeze the cooling water inside the first cylinder 8 outwards, and enter the inside of the second cylinder 11 through the first infusion pipe 12;

[0034] As the upper mold 5 moves downward, the cooling water entering the interior of the second cylinder 11 presses the second push plate 15 downward. Through the downward movement of the second push plate 15, the second spring 21 is stretched. At this time, under the action of the second vertical rod 16, the movable plate 17 is driven to move towards the second cylinder 11, and the first spring 20 is stretched. Combining with the movable cooperation between the ejector rod 18 and the through hole, the ejector plate 19 is driven to move downward;

[0035] When the ejector plate 19 moves downward to the bottom of the cavity of the lower mold 3, the upper mold 5 continues to move downward. Under the action of the first vertical rod 10 and the first push plate 9, the cooling water inside the first cylinder 8 is continuously squeezed outwards. Under the action of the second infusion tube 14, it enters the cooling cavity 13 until the upper mold 5 moves downward to contact the lower mold 3, causing the upper mold 5 and the lower mold 3 to close. Under the action of the injection tube, the injection material is injected into the inner cavity communicated between the upper mold 5 and the lower mold 3 to perform the injection operation;

[0036] During injection molding, heat transfer is carried out between the cooling water in the cooling cavity 13 and the cavity of the lower mold 3 to achieve the purpose of cooling and temperature reduction, preventing the injection molded part from adhering to the inner wall of the cavity of the lower mold 3 due to excessive temperature and affecting the normal demolding of the device;

[0037] After the injection molding is completed, the hydraulic cylinder 4 contracts, driving the upper mold 5 to move upward away from the lower mold 3. Under the action of the guide plate 7, the first vertical rod 10 is driven to move outside the first cylinder 8, and then the first push plate 9 is driven to move upward along the inner cavity of the first cylinder 8, forming a suction action inside the first cylinder 8. Under the action of the first infusion tube 12 and the second infusion tube 14, the cooling water in the second cylinder 11 and the cooling cavity 13 is pumped back into the first cylinder 8;

[0038] As the cooling water inside the second cylinder 11 is pumped out, under the elastic action of the second spring 21, the second push plate 15 is driven to move upward along the inner cavity of the second cylinder 11, driving the second vertical rod 16 to move upward, and then driving the movable plate 17 to move upward. At the same time, under the elastic action of the first spring 20, there is a further upward pulling force on the movable plate 17. As the movable plate 17 moves upward, combined with the ejector rod 18, the ejector plate 19 is driven to move upward along the cavity of the lower mold 3 until the injection molded part in the cavity of the lower mold 3 is ejected, achieving the rapid separation of the injection molded part from the lower mold 3 and the purpose of demolding the injection molded part;

[0039] Among them, the cooling water in the cooling cavity 13 is pumped back into the first cylinder 8, achieving the purpose of pumping out the cooling water after heat transfer during the injection molding process. The cooling water after heat transfer is pumped back into the first cylinder 8 and mixed and cooled with the non-heat-transfer cooling water, facilitating the cooling use in subsequent injection molding operations.

[0040] Compared with the prior art, the utility model adjusts the downward movement of the upper mold 5 through the hydraulic cylinder 4. Under the action of the first vertical rod 10 and the first push plate 9, the cooling water inside the first cylinder 8 is extruded outwards and flows into the second cylinder 11 through the first infusion pipe 12. Combining the second push plate 15, the second vertical rod 16, the movable plate 17 and the ejector rod 18, it drives the ejector plate 19 to move downward to the bottom of the cavity of the lower mold 3, facilitating the injection molding operation. At the same time, the cooling water is extruded into the second infusion pipe 14 and enters the cooling cavity 13, facilitating the cooling of the injection molded part during the injection molding process;

[0041] After the injection molding is completed, the hydraulic cylinder 4 drives the upper mold 5 to move upward. Under the action of the first vertical rod 10 and the first push plate 9, the cooling water in the second cylinder 11 and the cooling cavity 13 is pumped back into the first cylinder 8. At this time, under the elastic action of the first spring 20 and the second spring 21, the movable plate 17 is driven upward. Combining with the ejector rod 18, the ejector plate 19 is further driven to move upward along the cavity of the lower mold 3, ejecting the injection molded part in the cavity of the lower mold 3, realizing the rapid separation of the injection molded part from the lower mold 3, achieving the purpose of demolding the injection molded part, reducing the use of electrical appliances. During the cooling and demolding processes of the injection molded part, no additional power drive is required, reducing the manufacturing and use costs, solving the disadvantages in the prior art that during the injection molding process, a double-shaft motor is required for the cooling of the injection molded part, and a second electric push rod is required for the demolding of the injection molded part. The operation of both the double-shaft motor and the second electric push rod requires additional power drive, increasing the manufacturing, use and later maintenance costs of the device. At the same time, it solves the disadvantages in the prior art that if the double-shaft motor fails, the cooling of the injection molded part cannot be achieved, and if the second electric push rod fails, the demolding of the injection molded part cannot be achieved, affecting the smooth progress of the injection molding operation.

[0042] It should be further noted that the installation structure, connection method or setting method of each component in the utility model are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented. At the same time, the hydraulic cylinder 4 in the utility model is purchased on the market, and those skilled in the art can install and use it according to the requirements.

[0043] All technical features in this embodiment can be freely combined according to actual needs.

[0044] The preferred embodiments of the utility model disclosed above are only used to help illustrate the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the utility model, so that those skilled in the art in the relevant technical field can understand and utilize the utility model well. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An injection molded part separation device, comprising an injection molding table (1) and a fixing frame (2) fixed to the top rear side of the injection molding table (1), characterized in that: A lower mold (3) is arranged at the center of the top of the injection molding table (1), a hydraulic cylinder (4) is installed on the top of the fixed frame (2), the telescopic end of the hydraulic cylinder (4) passes through the fixed frame (2), is connected to the upper mold (5), and cooperates with the lower mold (3), a guide groove (6) is passed through the rear surface of the fixed frame (2), a guide plate (7) is fixed on the rear end surface of the upper mold (5), and cooperates with the guide groove (6), a first cylinder (8) is arranged on the rear side of the injection molding table (1), and a first cylinder (8) is movably arranged inside the first cylinder (8) A vertical rod (10), the upper end of the first vertical rod (10) is connected to the guide plate (7), the lower end of the first vertical rod (10) is fixed with a first push plate (9), the first push plate (9) is movably matched with the inner cavity of the first cylinder (8), a second cylinder (11) is arranged at the lower side of the injection molding table (1), a first infusion tube (12) is connected between the first cylinder (8) and the second cylinder (11), an ejection mechanism is arranged between the second cylinder (11) and the lower mold (3), and the first cylinder (8) is filled with cooling water.

2. The injection molded parts separation device according to claim 1, characterized in that: A cooling cavity (13) is provided inside the lower mold (3); a second infusion tube (14) is connected to the rear surface of the lower mold (3); the second infusion tube (14) is communicated with the cooling cavity (13); an end of the second infusion tube (14) away from the lower mold (3) passes through the injection molding table (1) and is communicated with the first infusion tube (12).

3. The injection molded parts separation device according to claim 1, characterized in that: The ejection mechanism comprises a second push plate (15), a second vertical rod (16), a movable plate (17), a push rod (18), an ejection plate (19), a first spring (20) and a second spring (21); the second push plate (15) is movably arranged in the inner cavity of the second cylinder (11); the second vertical rod (16) is movably matched with the second cylinder (11); the lower end of the second vertical rod (16) is connected to the second push plate (15); the upper end of the second vertical rod (16) is fixedly connected to the movable plate (17); the ejection plate (19) is movably matched with the mold cavity of the lower mold (3); two through holes are provided at the bottom of the mold cavity of the lower mold (3); the through holes penetrate the injection molding table (1); the push rod (18) is movably arranged in the through holes; and the upper and lower ends of the push rod (18) are respectively fixedly connected to the ejection plate (19) and the movable plate (17).

4. The injection molded parts separation device according to claim 3, characterized in that: The first spring (20) is fixedly connected between the bottom of the injection molding table (1) and the movable plate (17), the second spring (21) is connected between the top of the second push plate (15) and the inner wall of the second cylinder (11), and the second spring (21) is sleeved on the outside of the second vertical rod (16).

5. The injection molded parts separation device according to claim 1, characterized in that: An injection tube is also installed on the top of the upper mold (5), a support frame (22) is fixed on the bottom of the injection molding platform (1), a guide rod is fixed in the guide groove (6), the guide rod passes through the guide plate (7), and the guide plate (7) is movably matched with the guide rod.

6. The injection molded parts separation device according to claim 5, characterized in that: An L bracket is fixed on the rear side of the support frame (22), the first cylinder (8) is arranged on the top of the L bracket, and the upper and lower sides of the rear surface of the first cylinder (8) are respectively connected with an injection pipe and a discharge pipe, and valves are installed on the injection pipe and the discharge pipe, and a transparent plate is arranged on the first cylinder (8).

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