Demolding mechanism of plastic injection mold

Abstract

The utility model provides a demolding mechanism of a plastic injection mold, belongs to the technical field of plastic injection production, and solves the technical problem that the existing mold ejecting assembly can only demold a model adhered to a single mold base. A demolding mechanism of a plastic injection mold comprises a base and a supporting frame fixed to the base, a demolding table is fixed to the supporting frame, a pair of connecting frames are connected to the top face of the demolding table in a sliding mode, and the two connecting frames are fixedly connected with the corresponding sides of the injection mold through bolt structures correspondingly. A regulation and control assembly for controlling the connecting frame to move is arranged in the demolding table, an adjusting frame is vertically fixed to the base, a demolding frame is arranged on the adjusting frame, an adjusting assembly for adjusting the height of the demolding frame is arranged in the regulation and control frame, and the demolding frame is provided with a demolding assembly. The demolding device has the advantages that the position of the demolding assembly can be adjusted according to the adhesion condition of a model, and the demolding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic injection production and relates to a demoulding mechanism, in particular to a plastic injection mold demoulding mechanism. Background Art

[0002] Injection molds are tools for producing plastic products and also tools for giving plastic products complete structures and precise dimensions. After the plastic is heated and melted, it is injected into the injection mold by the injection molding machine under high pressure. After cooling and solidification, the formed plastic product can be obtained. Injection molds are widely used in industries such as plastic product processing.

[0003] After searching, it was found that a Chinese patent document disclosed a demolding mechanism for a plastic injection mold [application number: 202123444991.7; publication number: CN 216708244 U]. The demoulding mechanism for the plastic injection mold comprises a lower injection mold base, a molding cavity is formed in the middle of the top of the lower injection mold base, a demoulding cavity is formed inside the lower injection mold base, a top mold channel communicating with the inside of the demoulding cavity is formed at the bottom of the inner wall of the molding cavity, a top mold component is slidably connected inside the top mold channel, limiting sliding grooves are formed on both sides of the inner wall of the demoulding cavity, demoulding slide bars are slidably connected inside the two limiting sliding grooves, and a top mold pad is fixedly arranged between the two demoulding slide bars. The utility model provides a demoulding mechanism for the plastic injection mold, the demoulding mechanism adopts an electromagnet to absorb the top mold component and cooperate with the top mold spring to push and rebound, so as to quickly realize the ejection and demoulding of the molded plastic product, the response speed is fast, the demoulding efficiency is high, the operation is simple and easy to use, it saves time and labor, works stably and reliably, is not prone to jamming, the service life and application scope of the demoulding mechanism are improved, and the practicality is strong.

[0004] Although this patent realizes the ejection and demolding of molded plastic products, the top mold assembly can only demold the model adhered to a single mold base. However, due to different factors such as the temperature and pressure of model molding, the model may adhere to the molding block of the top membrane assembly, making it impossible to perform automatic demolding work normally. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the prior art and to propose a plastic injection mold demoulding mechanism. The technical problem to be solved by the utility model is: how to adjust the position of the demoulding component according to the adhesion of the model to improve the demoulding efficiency.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A plastic injection mold demoulding mechanism comprises a base, a support frame fixed on the base, a demoulding table fixed on the support frame, a pair of connecting frames slidably connected to the top surface of the demoulding table, a regulating component for controlling the movement of the connecting frames is arranged in the demoulding table, an adjusting frame is vertically fixed on the base, a demoulding frame is arranged on the adjusting frame, an adjusting component for adjusting the height of the demoulding frame is arranged in the adjusting frame, and the demoulding frame is provided with a demoulding component.

[0008] The working principle of the utility model is that the connecting frame can be moved in relative or opposite directions through the regulating component to adapt to injection molds of different sizes, and after being assembled and fixed with the injection mold, the injection mold can also be opened by the opposite movement to facilitate the subsequent demoulding work, the demoulding component presses and fixes the model adhered to the mold, and then cooperates with the movement of the connecting frame to take out the model, and the regulating component adjusts the height of the demoulding frame to better cooperate with the demoulding component to fit the model surface.

[0009] The regulating component includes regulating frames fixed on the left and right sides of the demolding table, and a bidirectional lead screw rotatably connected between the two regulating frames. A servo motor is fixed in one of the regulating frames, and the output end of the servo motor is coaxially fixedly connected to the bidirectional lead screw, and the two connecting frames are respectively threadedly connected to the corresponding side of the bidirectional lead screw.

[0010] With the above structure, the rotation of the bidirectional screw can be controlled by a servo motor, and the bidirectional screw is further connected to the connecting frame through a thread, so as to realize automatic control of the connecting frame to move in relative or opposite directions, thereby improving the efficiency of fixing the mold and increasing the speed of mold disassembly.

[0011] The adjustment component includes an adjustment slot vertically opened in the adjustment frame, an adjustment slider slidably connected in the adjustment slot, the top of the adjustment slider is fixedly connected to the demoulding frame, an adjustment motor is fixed in the adjustment frame, an adjustment screw is threadedly connected to the adjustment slider, and the bottom end of the adjustment screw is coaxially fixed with the output end of the adjustment motor.

[0012] With the above structure, the adjusting motor can be used to control the rotation of the adjusting screw, and the adjusting screw can further drive the adjusting slider to slide through the threaded connection with the adjusting slider, so that the adjusting slider drives the demolding frame to adjust the height. Through automated height adjustment, the demolding component can be better coordinated for demolding work, and the overall demolding efficiency can also be improved.

[0013] The demoulding assembly includes a mobile frame slidably connected to the demoulding frame, and a pressure frame arranged at the bottom of the mobile frame. A pressure rod is vertically slidably connected to the pressure frame, and the bottom end of the pressure rod passes through the pressure frame and is fixedly connected to an anti-slip rubber layer. An adjusting screw is vertically rotatably connected to the pressure frame, and a driving block is threadedly connected to the adjusting screw. The driving block is fixedly connected to the top of the pressure rod. A driving motor is fixed in the pressure frame, and the output end of the driving motor is fixedly connected to the same axis as the adjusting screw.

[0014] By adopting the above structure, the regulating screw can be driven to rotate by the driving motor, and the regulating screw can be further connected to the driving block through a thread, so as to drive the driving block to move up and down. When the driving block moves, it will also drive the pressure rod to press the model, thereby cooperating with the movement of the connecting frame, so that the model is affected by multi-directional forces and continues to loosen until it is separated from the sticky mold, thereby realizing automated demolding, improving overall efficiency, and reducing personnel workload.

[0015] A driving screw is rotatably connected in the demoulding frame and a control motor is fixedly connected in the demoulding frame. The output end of the control motor is fixedly connected to the driving screw on the same axis, and the driving screw is threadedly connected to the demoulding frame.

[0016] By adopting the above structure, the driving screw can be driven to rotate by controlling the motor. After the driving screw rotates, it will drive the demolding frame to move, so that the position of the demolding component can be adjusted according to the adhesion of the model, which is convenient for fixing the model. At the same time, it can also drive the pressure rod to move in the process of pressing the model, thereby forming a pulling force on one side of the model and improving the efficiency of removing the model.

[0017] An auxiliary motor is fixed inside the movable frame, and an output end of the auxiliary motor is fixedly connected to the pressing frame.

[0018] With the above structure, the auxiliary motor can be used to drive the pressing frame to rotate. Since it is impossible to predict which side of the mold the model will stick to during the demolding process, the pressing frame can be driven to rotate to facilitate the pressure rod to press the model at the corresponding position according to demand.

[0019] Compared with the prior art, the plastic injection mold demoulding mechanism has the following advantages:

[0020] 1. The connecting frame can be moved in the relative or opposite directions by adjusting the components to adapt to injection molds of different sizes. After being assembled and fixed with the injection mold, the injection mold can also be opened by moving in the opposite direction to facilitate subsequent demoulding.

[0021] 2. The regulating screw is driven by the driving motor to rotate, and the regulating screw is further connected to the driving block through a thread, driving the driving block to move up and down. When the driving block moves, it will also drive the pressure rod to press the model, thereby cooperating with the movement of the connecting frame, so that the model is affected by multi-directional forces and continues to loosen until it is separated from the sticky mold, thereby realizing automated demoulding, improving overall efficiency, and reducing workload.

[0022] 3. The driving screw is driven to rotate by controlling the motor. After the driving screw rotates, it will drive the demoulding frame to move. In this way, the position of the demoulding component can be adjusted according to the adhesion of the model. While fixing the model, it can also drive the pressure rod to move in the process of pressing the model, thereby forming a pulling force on one side of the model and improving the efficiency of removing the model.

[0023] 4. The pressing frame is driven to rotate by an auxiliary motor. Because it is impossible to predict which side of the mold the model will stick to during the demoulding process, the pressing frame is driven to rotate to facilitate the pressure rod to press the model at the corresponding position according to demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Figure 2 It is a structural schematic diagram of the regulating component in the utility model.

[0026] Figure 3 It is a schematic diagram of the structure inside the demoulding frame in the utility model.

[0027] Figure 4 It is a structural schematic diagram of the demoulding component in the utility model.

[0028] In the figure, 1. base; 2. support frame; 3. demoulding table; 4. connecting frame; 5. adjustment frame; 6. demoulding frame; 7. control frame; 8. bidirectional screw; 9. adjustment slide; 10. adjustment slider; 11. adjustment motor; 12. adjustment screw; 13. moving frame; 14. pressure frame; 15. pressure rod; 16. anti-slip rubber layer; 17. control screw; 18. drive block; 19. drive motor; 20. drive screw; 21. control motor; 22. auxiliary motor. DETAILED DESCRIPTION

[0029] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0030] like Figure 1-Figure 4As shown, a demolding mechanism for a plastic injection mold comprises a base 1, a support frame 2 fixed on the base 1, a demolding platform 3 fixed on the support frame 2, a pair of connecting frames 4 slidably connected to the top surface of the demolding platform 3, the two connecting frames 4 are respectively fixedly connected to the corresponding sides of the injection mold through a bolt structure, a regulating component for controlling the movement of the connecting frame 4 is arranged in the demolding platform 3, an adjusting frame 5 is vertically fixed on the base 1, a demolding frame 6 is arranged on the adjusting frame 5, an adjusting component for adjusting the height of the demolding frame 6 is arranged in the adjusting frame 5, and the demolding frame 6 is provided with a demolding component.

[0031] The connecting frame 4 can be moved in relative or opposite directions through the regulating component to adapt to injection molds of different sizes. After being assembled and fixed with the injection mold, the injection mold can also be opened by moving in the opposite direction to facilitate the subsequent demolding work. The demolding component presses and fixes the model adhered to the mold, and then cooperates with the movement of the connecting frame 4 to take out the model. The regulating component adjusts the height of the demolding frame 6 to better cooperate with the demolding component to fit the model surface.

[0032] The regulating assembly includes a regulating frame 7 fixed on the left and right sides of the demolding table 3, and a bidirectional lead screw 8 rotatably connected between the two regulating frames 7. A servo motor is fixed in one of the regulating frames 7, and the output end of the servo motor is coaxially fixedly connected to the bidirectional lead screw 8, and the two connecting frames 4 are respectively threadedly connected to the corresponding side of the bidirectional lead screw 8.

[0033] By adopting the above structure, the rotation of the bidirectional screw 8 can be controlled by the servo motor, and the bidirectional screw 8 is further connected to the connecting frame 4 through a thread, so as to realize automatic control of the connecting frame 4 to move in relative or opposite directions, thereby improving the efficiency of fixing the mold and increasing the speed of mold disassembly.

[0034] The adjustment component includes an adjustment slot 9 vertically opened in the adjustment frame 5, an adjustment slider 10 slidably connected in the adjustment slot 9, the top of the adjustment slider 10 is fixedly connected to the demolding frame 6, an adjustment motor 11 is fixed in the adjustment frame 5, an adjustment screw 12 is threadedly connected to the adjustment slider 10, and the bottom end of the adjustment screw 12 is coaxially fixed with the output end of the adjustment motor 11.

[0035] With the above structure, the adjusting motor 11 can be used to control the adjusting screw 12 to rotate, and the adjusting screw 12 can further drive the adjusting slider 10 to slide through the threaded connection with the adjusting slider 10, so that the adjusting slider 10 drives the demolding frame 6 to adjust the height. Through the automated height adjustment, the demolding component can be better cooperated to perform demolding work, and the overall demolding efficiency can also be improved.

[0036] The demoulding assembly includes a mobile frame 13 slidably connected to the demoulding frame 6, and a pressure frame 14 arranged at the bottom of the mobile frame 13. A pressure rod 15 is vertically slidably connected to the pressure frame 14. The bottom end of the pressure rod 15 passes through the pressure frame 14 and is fixedly connected to an anti-slip rubber layer 16. An adjusting screw 17 is vertically rotatably connected to the pressure frame 14. A driving block 18 is threadedly connected to the adjusting screw 17. The driving block 18 is fixedly connected to the top of the pressure rod 15. A driving motor 19 is fixed in the pressure frame 14. The output end of the driving motor 19 is fixedly connected to the same axis as the adjusting screw 17.

[0037] By adopting the above structure, the regulating screw 17 can be driven to rotate by the driving motor 19, and the regulating screw 17 can be further connected with the driving block 18 through a thread, so as to drive the driving block 18 to move up and down. When the driving block 18 moves, it will also drive the pressure rod 15 to press the model, thereby cooperating with the movement of the connecting frame 4, so that the model is affected by multi-directional forces and continuously loosens until it is separated from the sticky mold, thereby realizing the work of automated demolding, improving the overall efficiency, and reducing the workload of personnel.

[0038] A driving screw 20 is rotatably connected in the demoulding frame 6 and a control motor 21 is fixedly connected in the demoulding frame 6 . The output end of the control motor 21 is fixedly connected to the driving screw on the same axis. The driving screw 20 is threadedly connected to the demoulding frame 6 .

[0039] By adopting the above structure, the driving screw 20 can be driven to rotate by controlling the motor 21. After the driving screw 20 rotates, it will drive the demolding frame 6 to move, so that the position of the demolding component can be adjusted according to the adhesion of the model, which is convenient for fixing the model. At the same time, it can also drive the pressure rod 15 to move when the pressure rod 15 presses the model, thereby forming a pulling force on one side of the model and improving the efficiency of removing the model.

[0040] An auxiliary motor 22 is fixed inside the moving frame 13 , and an output end of the auxiliary motor 22 is fixedly connected to the pressing frame 14 .

[0041] By adopting the above structure, the auxiliary motor 22 can be used to drive the pressing frame 14 to rotate. Because it is impossible to predict which side of the mold the model will stick to during the demolding process, the pressing frame 14 can be driven to rotate to facilitate the pressure rod 15 to press the model at the corresponding position according to demand.

[0042] The working principle of the utility model is as follows: the injection mold is fixedly connected to the connecting frame 4 by a bolt structure, and at this time, the rotation of the bidirectional lead screw 8 is controlled by the servo motor, and the bidirectional lead screw 8 is further connected to the connecting frame 4 through a thread, so as to realize automatic control of the connecting frame 4 to move in the opposite direction, thereby improving the speed of mold disassembly, and the regulating lead screw 17 is driven to rotate by the driving motor 19, and the regulating lead screw 17 is further connected to the driving block 18 through a thread, so as to drive the driving block 18 to move up and down, and the driving block 18 will also drive the pressure rod 15 to press the model while moving, so as to cooperate with the movement of the connecting frame 4, so that the model is affected by multi-directional forces and is continuously loosened until it is detached from the sticky mold.

[0043] In summary, the connecting frame 4 can be moved in relative or opposite directions by adjusting the components to adapt to injection molds of different sizes. After being assembled and fixed with the injection mold, the injection mold can also be opened by moving in the opposite direction to facilitate the subsequent demolding work. The demolding component presses and fixes the model adhered to the mold, and then cooperates with the movement of the connecting frame 4 to take out the model. The adjusting component adjusts the height of the demolding frame 6 to better cooperate with the demolding component to fit the model surface.

[0044] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A plastic injection mold demoulding mechanism, comprising a base (1) and a support frame (2) fixed on the base (1), characterized in that: A demoulding platform (3) is fixed on the support frame (2), a pair of connecting frames (4) are slidably connected on the top surface of the demoulding platform (3), a regulating component for controlling the movement of the connecting frames (4) is arranged inside the demoulding platform (3), an adjusting frame (5) is vertically fixed on the base (1), a demoulding frame (6) is arranged on the adjusting frame (5), an adjusting component for adjusting the height of the demoulding frame (6) is arranged inside the adjusting frame (5), and the demoulding frame (6) is provided with a demoulding component.

2. A plastic injection mold demoulding mechanism according to claim 1, characterized in that: The regulating assembly comprises a regulating frame (7) fixed on the left and right sides of the demoulding platform (3), and a bidirectional lead screw (8) rotatably connected between the two regulating frames (7), wherein a servo motor is fixed in one of the regulating frames (7), the output end of the servo motor is coaxially fixedly connected to the bidirectional lead screw (8), and the two connecting frames (4) are respectively threadedly connected to the corresponding side of the bidirectional lead screw (8).

3. A plastic injection mold demoulding mechanism according to claim 1, characterized in that: The adjustment assembly comprises an adjustment slot (9) vertically provided in the adjustment frame (5), an adjustment slider (10) slidably connected in the adjustment slot (9), the top end of the adjustment slider (10) being fixedly connected to the demoulding frame (6), an adjustment motor (11) being fixed in the adjustment frame (5), an adjustment screw (12) being internally threadedly connected to the adjustment slider (10), and the bottom end of the adjustment screw (12) being coaxially fixed with the output end of the adjustment motor (11).

4. A plastic injection mold demoulding mechanism according to claim 1, characterized in that: The demoulding assembly comprises a moving frame (13) slidably connected to the demoulding frame (6), and a pressing frame (14) arranged at the bottom of the moving frame (13); a pressure rod (15) is vertically slidably connected to the pressing frame (14); the bottom end of the pressure rod (15) passes through the pressing frame (14) and is fixedly connected to an anti-slip rubber layer (16); a regulating screw (17) is vertically rotatably connected to the pressing frame (14); a driving block (18) is threadedly connected to the regulating screw (17); the driving block (18) is fixedly connected to the top end of the pressure rod (15); a driving motor (19) is fixedly connected to the pressing frame (14); and an output end of the driving motor (19) is coaxially fixedly connected to the regulating screw (17).

5. A plastic injection mold demoulding mechanism according to claim 1, characterized in that: A driving screw (20) is rotatably connected in the demoulding frame (6) and a control motor (21) is fixedly connected in the demoulding frame (6). The output end of the control motor (21) is fixedly connected to the driving screw on the same axis as the driving screw. The driving screw (20) is threadedly connected to the demoulding frame (6).

6. A plastic injection mold demoulding mechanism according to claim 4, characterized in that: An auxiliary motor (22) is fixed inside the movable frame (13), and an output end of the auxiliary motor (22) is fixedly connected to the pressing frame (14).

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