Multi-mold-cavity rapid demolding injection molding device

Abstract

The utility model belongs to the technical field of molds, in particular relates to a multi-mold-cavity rapid demolding injection molding device, and aims to solve the problems that an existing mold for performing injection molding on cosmetic packaging bottles cannot perform rapid demolding on the packaging bottles subjected to injection molding, so that the efficiency is low when the packaging bottles are subjected to injection molding production. According to the technical scheme, the mold opening device comprises an installation box, four supporting legs are fixedly installed on the installation box, and a plurality of outer mold covers are fixedly installed in the installation box in a matrix mode. According to the mold opening device, the injection-molded packaging bottle can be moved out of the corresponding outer mold cover, so that mold opening can be conveniently carried out on the packaging bottle, good convenience is achieved in actual use, and the production efficiency of the injection-molded packaging bottle is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a multi-cavity rapid demolding injection molding device. Background Technology

[0002] Lotions, serums, and other fluid cosmetics are typically packaged in bottles equipped with pump dispensers to expel the product for easy use. Currently, cosmetic bottles are usually made using a single-piece plastic casting process.

[0003] However, the molds currently used for injection molding cosmetic packaging bottles often cannot achieve rapid demolding of the injection-molded packaging bottles, resulting in low efficiency during the injection molding production of packaging bottles. Therefore, we propose a multi-cavity rapid demolding injection molding device to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing molds used for injection molding cosmetic packaging bottles, which often cannot achieve rapid demolding of the injection-molded packaging bottles, resulting in low efficiency during the injection molding production of packaging bottles. Therefore, this invention proposes a multi-cavity rapid demolding injection molding device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-cavity rapid demolding injection molding device includes a mounting box with four support legs fixedly mounted on it. Multiple outer mold covers are fixedly mounted in a matrix arrangement inside the mounting box. The molding device also includes:

[0007] The cover plate frame is respectively clamped to multiple outer mold covers. Multiple inner mold tubes are fixedly installed in a matrix on the top of the cover plate frame. The bottom end of the inner mold tube extends into the corresponding outer mold cover and fits tightly against the inner wall of the outer mold cover. Multiple liquid injection pipes are fixedly installed in a matrix through the inner wall of the top of the cover plate frame. The liquid injection pipes are used to connect to the external pipeline for conveying molten material.

[0008] Multiple ejection mechanisms are installed inside corresponding outer mold covers. The bottom of the ejection mechanism extends to the bottom of the mounting box. The top of the top mechanism is equipped with a mold core located inside the inner mold tube, and the mold core cooperates with the inner mold tube.

[0009] In one possible design, multiple mounting rods are fixedly installed at equal intervals on both sides of the cover plate frame, and one side of the mounting rod extends to the top of the mounting box and is fixedly installed with an L-shaped rod. Multiple limiting frames are fixedly installed at equal intervals on both sides of the mounting box. The L-shaped rod passes through the corresponding limiting frame and is slidably connected to the inner wall of the limiting frame. The bottom end of the multiple L-shaped rods is equipped with the same lifting component. The lifting component is connected to four support legs respectively, and the lifting component is connected to both sides of the mounting box respectively.

[0010] In one possible design, the lifting assembly includes baffles that are slidably connected to four support legs, and two electric push rods are symmetrically fixedly installed on both sides of the mounting box. The output shaft of the electric push rods is fixedly connected to the top of the baffles, and the baffles are fixedly connected to multiple L-shaped rods.

[0011] In one possible design, the ejection mechanism includes a push plate that is tightly slidably connected within the outer mold cover, with a transmission rod fixedly mounted at the bottom of the push plate, the bottom end of the transmission rod extending to the bottom of the mounting box.

[0012] In one possible design, a compression spring is fitted onto the transmission rod below the mounting box, with the top and bottom ends of the compression spring fixedly connected to the bottom of the mounting box and the bottom end of the transmission rod, respectively.

[0013] In one possible design, a support tube is fixedly installed through the bottom inner wall of one side of the mounting box. One end of the support tube is fixedly connected to a connecting cover. A bent tube is rotatably connected inside the connecting cover, and one end of the bent tube extends to the outside of the connecting cover.

[0014] In one possible design, a fixing ring is fixedly sleeved on the connecting cover, and a connecting ring is fixedly sleeved on the bent pipe. Two insertion holes are symmetrically opened on the fixing ring. An insertion rod is slidably connected through the connecting ring, and the insertion rod is movably engaged with the two insertion holes respectively. A tension spring is sleeved on the insertion rod, and the two ends of the tension spring are fixedly connected to one side of the connecting ring and one end of the insertion rod respectively.

[0015] In this application, during actual use, the pipeline conveying the molten raw material can be connected to multiple injection pipes. Then, four electric push rods can be activated to move the baffle downwards. This simultaneously moves multiple L-shaped rods downwards, facilitating the downward movement of the cover plate frame. As the cover plate frame moves downwards, the inner mold tube can be inserted into the corresponding outer mold cover until the inner mold tube is in close contact with the top of the push plate. At this point, the mold core and inner mold tube can cooperate, and raw material can be injected simultaneously between the inner mold tube and the mold core. Water can also be injected into the mounting box. After the raw material is injected between the inner mold tube and the mold core, the material can be cooled down quickly, which allows the injection-molded packaging bottle to be formed quickly. After the packaging bottle is cooled and formed, four electric push rods are activated to move the baffle upward, which in turn moves the cap plate frame upward, thus removing multiple inner mold tubes from the corresponding outer mold cover. When the baffle continues to move upward, it can contact the transmission rod, which can push the transmission rod upward, thereby removing the injection-molded packaging bottle from the outer mold cover, which facilitates the demolding of the packaging bottle.

[0016] Beneficial effects: In this utility model, the multi-cavity rapid demolding injection molding device can drive the baffle to move longitudinally by activating four electric push rods through the lifting component. At this time, it can drive multiple L-shaped rods to move longitudinally synchronously, thereby facilitating the longitudinal movement of the cover plate frame.

[0017] In this utility model, the multi-cavity rapid demolding injection molding device, through the ejection mechanism, can contact the transmission rod when the baffle continues to move upward after the inner mold tube moves out of the outer mold cover, thereby pushing the transmission rod to move upward, so as to remove the packaged bottle after injection molding from the outer mold cover, thus facilitating the demolding of the packaged bottle;

[0018] This invention enables the push plate to move upward by activating four electric push rods, thereby achieving rapid mold opening and removing the injection-molded packaging bottle from the corresponding outer mold cover after mold opening. This facilitates the mold opening of the packaging bottle, providing excellent convenience in actual use and effectively improving the production efficiency of injection-molded packaging bottles. Attached Figure Description

[0019] Figure 1 This is a top-view three-dimensional structural diagram of a multi-cavity rapid demolding injection molding device proposed in this utility model;

[0020] Figure 2 This is a three-dimensional side view structural diagram of a multi-cavity rapid demolding injection molding device proposed in this utility model;

[0021] Figure 3This is a three-dimensional cross-sectional schematic diagram of the outer mold cover of a multi-cavity rapid demolding injection molding device proposed in this utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of the connection structure between the cover plate frame and the inner mold tube of a multi-cavity rapid demolding injection molding device proposed in this utility model.

[0023] In the diagram: 1. Mounting box; 2. Support leg; 3. Outer mold cover; 4. Push plate; 5. Transmission rod; 6. Mold core; 7. Compression spring; 8. Cover plate frame; 9. Inner mold tube; 10. Injection pipe; 11. Mounting rod; 12. L-shaped rod; 13. Limiting frame; 14. Electric push rod; 15. Baffle; 16. Support tube; 17. Connecting cover; 18. Bend; 19. Fixing ring; 20. Connecting ring; 21. Insert rod; 22. Tension spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1: Refer to Figure 1-4 A molding device mainly includes a mounting box 1, with support legs 2 fixedly installed at the four corners of the bottom of the mounting box 1 to provide stable support for the entire device. Inside the mounting box 1, multiple outer mold covers 3 are fixedly installed in a matrix to accommodate injection molds.

[0026] In addition, the device also includes a cover plate frame 8, on both sides of which are designed with multiple equally spaced mounting rods 11. The top of one side of these mounting rods 11 extends to the top of the mounting box 1 and is fixedly mounted with an L-shaped rod 12. Multiple equally spaced limiting frames 13 are also designed on both sides of the mounting box 1. The L-shaped rod 12 passes through the corresponding limiting frame 13 and slides through the inner wall of the limiting frame 13. This design allows the cover plate frame 8 to remain stable when it is raised and lowered.

[0027] Multiple inner mold tubes 9 are fixedly installed in a matrix on the top of the cover plate frame 8. The bottom ends of these inner mold tubes 9 extend into the corresponding outer mold cover 3 and fit tightly against the inner wall of the outer mold cover 3. Multiple injection pipes 10 are also fixedly installed in a matrix through the inner wall of the top of the cover plate frame 8. These injection pipes 10 are used to connect to external pipelines for conveying molten material, so as to inject the molten material into the mold cavity formed between the inner mold tubes 9 and the outer mold cover 3.

[0028] To achieve rapid demolding, the device is also designed with multiple ejection mechanisms. Each ejection mechanism is installed inside a corresponding outer mold cover 3, with its bottom extending below the mounting box 1. A mold core 6 located inside the inner mold tube 9 is mounted on the top of the ejection mechanism. The mold core 6 cooperates with the inner mold tube 9 to form a complete mold cavity. Specifically, the ejection mechanism includes a push plate 4 tightly slidably connected inside the outer mold cover 3. A transmission rod 5 is fixedly installed at the bottom of the push plate 4, and the bottom end of the transmission rod 5 extends below the mounting box 1.

[0029] To achieve the lifting and lowering of the cover frame 8, a lifting assembly is also designed. The lifting assembly includes baffles 15 slidably connected to the four support legs 2, and two electric push rods 14 symmetrically fixed on both sides of the mounting box 1. The output shafts of the electric push rods 14 are fixedly connected to the top of the baffles 15, and the baffles 15 are also fixedly connected to multiple L-shaped rods 12. When the four electric push rods 14 are activated, they drive the baffles 15 to move longitudinally, thereby causing the multiple L-shaped rods 12 to move longitudinally synchronously, thus driving the cover frame 8 to lift and lower.

[0030] After injection molding is completed, when the cap plate frame 8 rises and moves the inner mold tube 9 out of the outer mold cover 3, the baffle 15 will contact the transmission rod 5 and push it upward as it continues to move upward. In this way, the push plate 4 will push the packaged bottle out of the outer mold cover 3 after injection molding, achieving rapid demolding.

[0031] To facilitate the resetting of the push plate 4, a compression spring 7 is fitted onto the transmission rod 5, located below the mounting box 1. The top and bottom ends of the compression spring 7 are fixedly connected to the bottom of the mounting box 1 and the bottom end of the transmission rod 5, respectively. When the baffle 15 moves downward, the transmission rod 5 loses resistance, and the compression spring 7, under stress, pushes the transmission rod 5 downward, thereby moving the push plate 4 back to its initial position.

[0032] To drain water or other liquids from the installation box 1, a support pipe 16 is fixedly installed through the bottom inner wall of one side of the device. One end of the support pipe 16 is fixedly connected to a connecting cover 17, and a bent pipe 18 is rotatably connected inside the connecting cover 17, with one end of the bent pipe 18 extending to the outside of the connecting cover 17. When drainage is required, simply rotate one end of the bent pipe 18 so that the opening faces downwards.

[0033] This application can be used in the field of mold technology, or in other fields applicable to this application.

[0034] Example 2: Reference Figure 1Based on Embodiment 1, an improvement is made to a multi-cavity rapid demolding injection molding device, which is applied to the field of mold technology. To ensure the stability of the bent tube 18 after rotation, a fixing ring 19 is fixedly sleeved on the connecting cover 17, and a connecting ring 20 is fixedly sleeved on the bent tube 18. Two insertion holes are symmetrically opened on the fixing ring 19, and an insertion rod 21 is slidably connected through the connecting ring 20, with the insertion rod 21 movably engaged with the two insertion holes respectively. A tension spring 22 is sleeved on the insertion rod 21, and both ends of the tension spring 22 are fixedly connected to one side of the connecting ring 20 and one end of the insertion rod 21 respectively. When the bent tube 18 is rotated to the position of opening upwards or downwards, the insertion rod 21 will correspond to the position of the two insertion holes. At this time, simply releasing the insertion rod 21 will cause the tension spring 22, which is under tension, to move the insertion rod 21, allowing it to pass through the corresponding insertion hole, thereby positioning the bent tube 18.

[0035] However, as is well known to those skilled in the art, the working principle and wiring method of the electric actuator 14 are commonplace and are all conventional means or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-cavity quick demolding injection molding device, comprising a mounting box (1), four supporting legs (2) are fixedly installed on the mounting box (1), and a plurality of outer mold covers (3) are fixedly installed in the mounting box (1) in a matrix manner, characterized in that, The forming device further comprises: The cover frame (8) is respectively clamped with a plurality of outer covers (3), the top of the cover frame (8) is fixedly installed with a plurality of inner mold pipes (9) in a matrix manner, the bottom end of the inner mold pipe (9) extends into the corresponding outer cover (3) and is tightly fitted with the inner wall of the outer cover (3), a plurality of liquid injection pipes (10) are fixedly installed on the inner wall of the top of the cover frame (8) in a matrix manner, and the liquid injection pipe (10) is used for connecting with a pipeline for conveying molten material; A plurality of ejection mechanisms are installed in the corresponding outer cover (3), the bottom of the ejection mechanism extends below the installation box (1), and the top of the ejection mechanism is provided with a mold core (6) located in the inner mold pipe (9).

2. The multi-cavity quick mold release injection molding apparatus of claim 1, wherein, A plurality of mounting rods (11) are fixedly installed on both sides of the cover frame (8) at equal intervals, one side of the mounting rod (11) extends above the installation box (1) and is fixedly installed with an L-shaped rod (12), a plurality of limiting frames (13) are fixedly installed on both sides of the installation box (1) at equal intervals, the L-shaped rod (12) penetrates through the corresponding limiting frame (13) and is slidably connected with the inner wall of the limiting frame (13), and the bottom end of the plurality of L-shaped rods (12) is installed with the same lifting assembly.

3. A multi-cavity quick mold release injection molding apparatus as defined in claim 2, wherein, The lifting assembly comprises a baffle (15) slidably connected with the four supporting legs (2), and two electric push rods (14) are fixedly installed on both sides of the installation box (1) in a symmetrical manner, the output shaft of the electric push rod (14) is fixedly connected with the top of the baffle (15), and the baffle (15) is fixedly connected with the plurality of L-shaped rods (12).

4. The multi-cavity quick mold release injection molding apparatus of claim 1, wherein, The ejection mechanism comprises a push plate (4) slidably connected in the outer cover (3), and the bottom of the push plate (4) is fixedly installed with a transmission rod (5), and the bottom end of the transmission rod (5) extends below the installation box (1).

5. A multi-cavity quick mold release injection molding apparatus as defined in claim 4, wherein, The transmission rod (5) is sleeved with a compression spring (7) located below the installation box (1), and the top end and the bottom end of the compression spring (7) are fixedly connected with the bottom of the installation box (1) and the bottom end of the transmission rod (5), respectively.

6. The multi-cavity quick mold release injection molding apparatus of claim 1, wherein, A supporting pipe (16) is fixedly installed on the bottom inner wall of one side of the installation box (1), one end of the supporting pipe (16) is fixedly communicated with a connecting cover (17), a bent pipe (18) is rotatably connected in the connecting cover (17), and one end of the bent pipe (18) extends to the outside of the connecting cover (17).

7. A multi-cavity quick mold release injection molding apparatus as defined in claim 6, wherein, A fixing ring (19) is fixedly sleeved on the connecting cover (17), a connecting ring (20) is fixedly sleeved on the bent pipe (18), two insertion holes are symmetrically formed in the fixing ring (19), an insertion rod (21) is slidably connected through the connecting ring (20), the insertion rod (21) is movably clamped in the two insertion holes, a stretching spring (22) is sleeved on the insertion rod (21), and the two ends of the stretching spring (22) are fixedly connected with one side of the connecting ring (20) and one end of the insertion rod (21).

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