Efficient injection mold

Abstract

The utility model discloses an efficient injection mold which comprises a movable mold base and a fixed mold base symmetrically arranged on the right side of the movable mold base, the movable mold base and the fixed mold base are the same in section shape and area size, and the outer wall of the right end of the movable mold base can be completely attached to the outer wall of the left end of the fixed mold base. The novel mold opening protection device is additionally arranged at the front end of the movable mold base of the injection mold, and when the injection mold is in a mold opening device, a lifting block of the mold opening protection device can be operated to ascend, so that a blocking type metal block slides between the movable mold base and a fixed mold base in a mold opening state; in this way, the situation that the mold is accidentally closed due to mistaken touch and other reasons when the mold is opened to take out a formed object can be avoided, and when the mold is accidentally closed, the blocking type metal block located between the movable mold base and the fixed mold base can prevent the mold from being closed; therefore, the situation that an operator is injured due to the fact that the operator takes out an injection molding object and performs mold closing accidentally can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field related to injection molds, and particularly relates to a high-efficiency injection mold. Background Art

[0002] Injection molds are crucial equipment in the plastic molding industry, and their performance directly affects the quality of plastic parts and production efficiency. Traditional injection molds present many challenges in operation and maintenance, such as high mold docking precision requirements and cumbersome mold closing and demolding processes. To address these issues, the design of modern high-efficiency injection molds continues to develop in the direction of automation and precision.

[0003] The high-efficiency injection mold introduced in this technology includes a movable mold base and a fixed mold base. Through symmetrical settings and precise matching, efficient and stable injection molding is achieved. The cross-sectional shape and area of the movable mold base and the fixed mold base are the same, and the precise docking of the mold is ensured by the matching of guide pillars and guide holes. In particular, the connection design of the movable mold base and the fixed mold base is equipped with a mounting fixing flange, which is firmly installed through the mounting holes. The key to the design of this mold lies in its injection molding module and sealing system. The precise matching of the injection molding module and the sealing ring, as well as the design of the injection connector and injection guide holes of the fixed mold base, ensure the sealing and uniform injection of plastic during the injection molding process. In addition, the power push-pull mechanism makes the left and right movement of the movable mold base efficient and reliable, simplifying the operations of mold closing and demolding.

[0004] However, when the injection mold is working, it mainly injects hot melt plastic into the molding cavity in the mold closing state, and waits for the hot melt plastic injected into the molding cavity to cool and form to obtain a molded object. After injection molding, the injection mold needs to be opened to expose the molded object, and then the operator needs to manually take out the molded object. During the process of taking out the molded object, if the injection mold switch is accidentally touched, it will easily cause the injection mold to close accidentally, and the injection mold that is accidentally closed will easily injure the operator's arm. In actual applications, the situation where the mold accidentally closes and injures the operator has always existed. There is an urgent need for a device to prevent the injection mold from accidentally closing and injuring the operator. Utility Model Content

[0005] The purpose of the present utility model is to provide an efficient injection mold to solve the problem raised in the above-mentioned background technology that when removing the molded object, if the injection mold switch is accidentally touched, the injection mold may be accidentally closed, and the accidentally closed injection mold may easily injure the operator's arm.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-efficiency injection mold, comprising a movable mold base and a fixed mold base symmetrically arranged on the right side of the movable mold base, wherein the movable mold base and the fixed mold base have the same cross-sectional shape and area, the outer wall of the right end of the movable mold base can be completely fitted with the outer wall of the left end of the fixed mold base, the right end of the movable mold base is provided with opening and closing guide pillars near the four corners, the interior of the fixed mold base is provided with guide pillar guide holes near the four corners, the opening and closing guide pillars are inserted into the guide pillar guide holes, and the outer wall of the front end of the movable mold base is provided with a mold opening protection device;

[0007] The mold opening protection device includes a lifting block, a rectangular lifting cylinder, a horizontal fixing bar and a blocking metal block. The rectangular lifting cylinder is fixed to the front end outer wall of the movable mold base. The rectangular lifting cylinder is arranged in a vertical state on the front end outer wall of the movable mold base. The rectangular lifting cylinder is close to the lower right corner of the movable mold base. The lifting block is inserted into the rectangular lifting cylinder. A horizontal fixing bar is welded to the right end of the bottom of the lifting block, and a blocking metal block is welded to the rear end outer wall of the horizontal fixing bar.

[0008] Preferably, the lifting block can move up and down in the rectangular lifting cylinder, the left end outer wall of the blocking metal block is located to the right of the right end outer wall of the movable mold base, and the blocking metal block is a solid rectangular metal block.

[0009] Preferably, the mold opening protection device also includes a hand-tightened screw and a screw lifting groove. A screw lifting groove is provided inside the front end of the rectangular lifting cylinder, and a screw hole is provided inside the lifting block. The screw hole is close to the top of the lifting block. A hand-tightened screw is inserted into the screw lifting groove, and the screw rod of the hand-tightened screw is threadedly inserted into the screw hole.

[0010] Preferably, the hand-tightened screw can move up and down in the screw lifting groove, and the hand-tightened screw can drive the lifting block to move up and down synchronously. The distance between the outer wall of the bottom end of the rectangular lifting cylinder and the outer wall of the bottom end of the movable mold base is greater than the vertical thickness of the blocking metal block.

[0011] Preferably, a mounting flange A is welded to the outside of the left end of the movable mold base, and a mounting flange B is welded to the outside of the right end of the fixed mold base. A plurality of mounting holes are evenly spaced inside the mounting flanges A and B.

[0012] Preferably, an injection molding module is provided at the center of the outer wall of the right end of the movable mold base, a sealing ring is provided on the outside of the left end of the injection molding module, and the left end of the sealing ring is fixedly connected to the outer wall of the right end of the movable mold base.

[0013] Preferably, a sealing groove is provided inside the center of the left end of the fixed mold base, and an injection molding groove is provided at the right end of the sealing groove. The diameter and depth of the injection molding groove are both greater than the diameter and thickness of the injection molding module.

[0014] Preferably, an injection molding connector is provided at the center of the right end of the fixed mold base, an injection molding guide hole is connected to the center of the right end of the injection molding groove, and the injection molding connector is connected to the inside of the injection molding groove through the injection molding guide hole.

[0015] Compared with the prior art, the present invention provides a high-efficiency injection mold with the following beneficial effects:

[0016] The utility model adds a novel mold opening protection device to the front end of the movable mold base of the injection mold. When the injection mold is in the mold opening device, the lifting block of the mold opening protection device can be operated to rise, so that the blocking metal block is slid between the movable mold base and the fixed mold base in the mold opening state. In this way, the mold can be prevented from accidentally closing due to reasons such as accidental touch when the mold is opened to take out the molded object. Because when the mold is accidentally closed, the blocking metal block located between the movable mold base and the fixed mold base will prevent the mold from closing, thereby preventing the operator from accidentally closing the mold when taking out the injection-molded object and injuring the operator. In this way, the safety of the injection mold can be increased, and the personal safety of the operator can also be protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a high-efficiency injection mold of the present utility model.

[0018] Figure 2 This is a schematic diagram of the planar structure of a high-efficiency injection mold of the present utility model.

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the mold opening protection device of the present invention in an unused state.

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the mold opening protection device of the present invention in use state.

[0021] In the figure: 1. Mounting flange A; 2. Movable mold base; 3. Mold opening protection device; 4. Opening and closing guide pins; 5. Fixed mold base; 6. Mounting flange B; 7. Guide pin guide holes; 8. Injection molding connector; 9. Injection molding module; 10. Sealing ring; 11. Sealing groove; 12. Injection molding groove; 13. Injection molding guide holes; 14. Lifting block; 15. Thumb screw; 16. Screw lifting slot; 17. Rectangular lifting cylinder; 18. Horizontal fixing bar; 19. Blocking metal block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides Figure 1-4 The high-efficiency injection mold shown in the figure includes a movable mold base 2 and a fixed mold base 5 symmetrically arranged on the right side of the movable mold base 2. The cross-sectional shape and area size of the movable mold base 2 and the fixed mold base 5 are the same. The outer wall of the right end of the movable mold base 2 can be completely fitted with the outer wall of the left end of the fixed mold base 5. The right end of the movable mold base 2 is provided with opening and closing guide pillars 4 near the four corners, and the fixed mold base 5 is provided with guide pillar guide holes 7 near the four corners. The opening and closing guide pillars 4 are inserted into the guide pillar guide holes 7. The left end of the movable mold base 2 is welded with a mounting flange A1, and the right end of the fixed mold base 5 is welded with a mounting flange A1. A mounting fixing flange B6 is welded, and multiple mounting holes are equidistantly arranged inside the mounting fixing flange A1 and the mounting fixing flange B6. When installing and using the injection mold, you first need to install the movable mold base 2 and the fixed mold to the corresponding positions on the injection molding machine. After installation, you need to fix the power push-pull mechanism on the injection molding machine to the movable mold base 2 so that the power push-pull mechanism can drive the movable mold base 2 to move left and right. At the same time, you need to connect the injector to the injection connector 8 on the right end of the fixed mold base 5, and then you need to start the injection mold and prepare for injection molding.

[0024] like Figure 1 and Figure 2As shown, an injection molding module 9 is provided at the center of the outer wall of the right end of the movable mold base 2, a sealing ring 10 is provided on the outside of the left end of the injection molding module 9, and the left end of the sealing ring 10 is fixedly connected to the outer wall of the right end of the movable mold base 2, a sealing groove 11 is provided inside the center of the left end of the fixed mold base 5, an injection molding groove 12 is provided on the right end of the sealing groove 11, the diameter and depth of the injection molding groove 12 are greater than the diameter and thickness of the injection molding module 9, an injection molding connector 8 is provided at the center of the right end of the fixed mold base 5, an injection molding guide hole 13 is connected to the center of the right end of the injection molding groove 12, the injection molding connector 8 is connected to the inside of the injection molding groove 12 through the injection molding guide hole 13, after the injection mold is started, the power push-pull machine The structure will push the movable mold base 2 toward the fixed mold base 5 until the mold base and the fixed mold base 5 are tightly molded together when movable. After the mold is closed, the injection molding groove 12 is sleeved on the outside of the injection molding module 9, and the area between the two is the shape of the injection molded workpiece. The injector will then inject the hot-melt plastic into the injection molding cavity through the injection guide hole 13. After the injection molding cavity is filled with hot-melt plastic, it is only necessary to wait for the hot-melt plastic to cool and form in the injection molding cavity. After molding, the movable mold base 2 needs to be driven to the left by a power push-pull mechanism to demold the movable mold base 2 and the fixed mold base 5, and then the molded object sleeved on the outside of the injection molding module 9 can be taken out.

[0025] like Figure 1 、 Figure 3 and Figure 4 As shown, the front end outer wall of the movable mold base 2 is provided with a mold opening protection device 3, and the mold opening protection device 3 includes a lifting block 14, a rectangular lifting cylinder 17, a horizontal fixing bar 18 and a blocking metal block 19. The rectangular lifting cylinder 17 is fixed to the front end outer wall of the movable mold base 2. The rectangular lifting cylinder 17 is set in a vertical state on the front end outer wall of the movable mold base 2. The rectangular lifting cylinder 17 is close to the lower right corner of the movable mold base 2. The lifting block 14 is inserted into the rectangular lifting cylinder 17. The right end of the bottom of the lifting block 14 is welded with a horizontal fixing bar 18. The rear end outer wall of the horizontal fixing bar 18 is welded with a blocking The blocking metal block 19 and the lifting block 14 can move up and down in the rectangular lifting cylinder 17. The outer wall of the left end of the blocking metal block 19 is located on the right side of the outer wall of the right end of the movable mold base 2. The blocking metal block 19 is a solid rectangular metal block. The mold opening protection device 3 also includes a hand-tightening screw 15 and a screw lifting groove 16. The front end of the rectangular lifting cylinder 17 is internally provided with a screw lifting groove 16. The lifting block 14 is internally provided with a screw hole. The screw hole is close to the top of the lifting block 14. The screw lifting groove 16 is inserted with a hand-tightening screw 15, and the screw rod of the hand-tightening screw 15 is threadedly inserted into the screw hole.

[0026] like Figure 1 、 Figure 3 and Figure 4As shown, the hand-tightening screw 15 can move up and down in the screw lifting groove 16, and the hand-tightening screw 15 can drive the lifting block 14 to move up and down synchronously. The distance between the outer wall of the bottom end of the rectangular lifting cylinder 17 and the outer wall of the bottom end of the movable mold base 2 is greater than the vertical thickness of the blocking metal block 19. After the movable mold base 2 and the fixed mold base 5 are demolded, the user needs to take out the plastic molding outside the injection molding module 9. However, the injection mold is accidentally closed during the process of taking out the molding and injuring the user. Therefore, the mold opening protection device 3 is required to prevent the injection mold from accidentally closing to protect the operator. Specifically, it is necessary to loosen the hand-tightening screw 15, then hold the nut of the hand-tightening screw 15 and pull it upward. At this time, the hand-tightening screw 15 will drive the lifting block 14 to move upward in the rectangular lifting cylinder 17, and the lifting block 14 will drive the horizontal fixing bar 18 to move upward until the water The blocking metal block 19 at the rear end of the flat fixed block is located between the movable mold base 2 in the mold opening state and the front end of the fixed mold base 5. Then, the height is maintained and the hand-tightening screw 15 is tightened so that the lifting block 14 is locked at the current height in the rectangular lifting cylinder 17. In this way, when the injection mold is accidentally closed, the movable mold base 2 will move toward the fixed mold base 5, and the blocking metal block 19 located between the movable mold base 2 and the fixed mold base 5 will prevent the two mold bases from approaching each other, thereby preventing accidental mold closing from occurring, thereby protecting the personal safety of the operator. After taking out the molded object, it is only necessary to loosen the hand-tightening screw 15. At this time, the lifting block 14 will naturally fall down due to its own weight, causing the blocking metal block 19 to move downward and disengage from between the movable mold base 2 and the front end of the fixed mold base 5, thereby ensuring that the movable mold base 2 can move normally toward the fixed mold base 5 to ensure that the two can be normally closed.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-efficiency injection mold, comprising a movable mold base (2) and a fixed mold base (5) symmetrically arranged on the right side of the movable mold base (2), wherein the cross-sectional shape and area size of the movable mold base (2) and the fixed mold base (5) are the same, the outer wall of the right end of the movable mold base (2) can be completely fitted with the outer wall of the left end of the fixed mold base (5), the right end of the movable mold base (2) is provided with opening and closing guide pillars (4) near the four corners, the interior of the fixed mold base (5) is provided with guide pillar guide holes (7) near the four corners, the opening and closing guide pillars (4) are inserted into the guide pillar guide holes (7), and the invention is characterized in that: The front end outer wall of the movable mold base (2) is provided with a mold opening protection device (3); The mold opening protection device (3) comprises a lifting block (14), a rectangular lifting cylinder (17), a horizontal fixing bar (18) and a blocking metal block (19); the rectangular lifting cylinder (17) is fixed to the front end outer wall of the movable mold base (2); the rectangular lifting cylinder (17) is arranged in a vertical state on the front end outer wall of the movable mold base (2); the rectangular lifting cylinder (17) is close to the lower right corner of the movable mold base (2); the lifting block (14) is inserted into the rectangular lifting cylinder (17); the horizontal fixing bar (18) is welded to the right end of the bottom of the lifting block (14); and the blocking metal block (19) is welded to the rear end outer wall of the horizontal fixing bar (18).

2. A high-efficiency injection mold according to claim 1, characterized in that: The lifting block (14) can move up and down in the rectangular lifting cylinder (17); the left end outer wall of the blocking metal block (19) is located on the right side of the right end outer wall of the movable mold base (2); and the blocking metal block (19) is a solid rectangular metal block.

3. A high-efficiency injection mold according to claim 2, characterized in that: The mold opening protection device (3) further comprises a hand-tightening screw (15) and a screw lifting groove (16); the front end of the rectangular lifting cylinder (17) is provided with a screw lifting groove (16); the lifting block (14) is provided with a screw hole; the screw hole is close to the top of the lifting block (14); the screw lifting groove (16) is plugged with a hand-tightening screw (15); the screw rod of the hand-tightening screw (15) is threadedly inserted into the screw hole.

4. A high-efficiency injection mold according to claim 3, characterized in that: The hand-tightening screw (15) can move up and down in the screw lifting groove (16), and the hand-tightening screw (15) can drive the lifting block (14) to move up and down synchronously. The distance between the outer wall of the bottom end of the rectangular lifting cylinder (17) and the outer wall of the bottom end of the movable mold base (2) is greater than the vertical thickness of the blocking metal block (19).

5. The high-efficiency injection mold according to claim 1, characterized in that: A mounting flange A (1) is welded to the outside of the left end of the movable mold base (2), and a mounting flange B (6) is welded to the outside of the right end of the fixed mold base (5). Multiple mounting holes are evenly spaced inside the mounting flange A (1) and the mounting flange B (6).

6. The high-efficiency injection mold according to claim 1, characterized in that: An injection molding module (9) is provided at the center of the outer wall of the right end of the movable mold base (2), a sealing ring (10) is provided on the outside of the left end of the injection molding module (9), and the left end of the sealing ring (10) is fixedly connected to the outer wall of the right end of the movable mold base (2).

7. The high-efficiency injection mold according to claim 6, characterized in that: A sealing groove (11) is provided at the center of the left end of the fixed mold base (5), and an injection molding groove (12) is provided at the right end of the sealing groove (11). The diameter and depth of the injection molding groove (12) are both greater than the diameter and thickness of the injection molding module (9).

8. The high-efficiency injection mold according to claim 7, characterized in that: An injection molding connector (8) is provided at the center of the right end of the fixed mold base (5), and an injection molding guide hole (13) is connected to the center of the right end of the injection molding groove (12). The injection molding connector (8) is connected to the inside of the injection molding groove (12) through the injection molding guide hole (13).

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