Quick reset ejecting mechanism of injection mold

By using a rapid reset and ejection mechanism for injection molds, alternating mold operation is achieved, solving the problem of long mold cooling waiting time and improving injection molding efficiency and workpiece collection convenience.

CN224255913UActive Publication Date: 2026-05-19JIANGSU AMEI PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU AMEI PLASTIC CO LTD
Filing Date
2025-04-25
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Excessive cooling time in injection molding processes leads to low operational efficiency.

Method used

Design a rapid reset and ejection mechanism for injection molds. Utilize a hydraulic cylinder to drive the molds to work alternately, allowing injection molding to occur on one side of the mold while the other side is cooling. Combined with a shielding and collecting mechanism, this improves efficiency and stability.

Benefits of technology

By alternating the working of molds, the efficiency of injection molding is improved, the cooling waiting time is reduced, the output is increased, and the workpiece is collected conveniently through the collection mechanism.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a quick resetting and ejecting mechanism for an injection mold, and relates to the technical field of injection molding processing. The two mold bodies are located in the cavity of the machining box, and shaping of an injection molding workpiece is achieved; the injection molding opening is formed in the upper surface of the processing box and is used for realizing injection molding in the mold body; the push-pull reset mechanism is arranged on the surface of the machining box, so that the injection molding machining efficiency is improved; the shielding mechanism is arranged on the inner wall of the processing box and is used for shielding the injection molding opening; and the collecting mechanism is arranged on the inner wall of the machining box, the separated injection molding workpieces can be conveniently collected, the push-pull reset mechanism comprises a first hydraulic cylinder, and the first hydraulic cylinder is fixedly connected with the machining box. According to the utility model, the problem that the operation efficiency of injection molding processing is low due to the fact that time is consumed during the period of waiting for cooling the mold is solved.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a quick reset and ejection mechanism for injection molds. Background Technology

[0002] Injection molding is a widely used plastic forming process that involves injecting molten plastic material into a mold cavity, where it cools and solidifies to form the desired plastic product. Injection molding is characterized by high efficiency and the ability to be mass-produced, and is widely used in industries such as automobiles, home appliances, and medical devices.

[0003] When using injection molds for workpiece injection molding, the mold needs to cool and solidify after injection before the mold can be opened to remove the molded workpiece. The cooling process is very time-consuming, resulting in low efficiency of injection molding. Utility Model Content

[0004] This invention provides a quick reset and ejection mechanism for injection molds, which solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] An embodiment of this utility model provides a quick reset and ejection mechanism for injection molds, comprising:

[0007] Processing box;

[0008] Two mold bodies are located inside the cavity of the processing box to achieve the shaping of injection molded workpieces;

[0009] The injection port is located on the upper surface of the processing box to enable injection molding into the mold body;

[0010] A push-pull reset mechanism is provided on the surface of the processing box to improve injection molding efficiency;

[0011] A shielding mechanism is provided on the inner wall of the processing box to shield the injection port;

[0012] A collection mechanism is provided on the inner wall of the processing box to facilitate the collection of detached injection molded workpieces.

[0013] Furthermore, the push-pull reset mechanism includes a first hydraulic cylinder, which is fixedly connected to the processing box. The output end of the first hydraulic cylinder is fixedly connected to the mold body. A second hydraulic cylinder is fixedly connected to the surface of the mold body, and two fixing rods are fixedly connected to the surfaces of the two mold bodies.

[0014] The above technical solution allows the mold on one side to be cooled while the mold on the other side is being injected, thereby improving the efficiency of injection molding.

[0015] Furthermore, the surface of the processing box is provided with a sliding hole, and two sliders are slidably connected to the inner wall of the sliding hole. The sliders are fixedly connected to the second hydraulic cylinder.

[0016] By using the above technical solution, the support connection of the second hydraulic cylinder is added, thereby improving the stability of the overall structure and making the equipment operate more stably.

[0017] Furthermore, the shielding mechanism includes four fixed blocks, which are fixedly connected to the processing box. Two of the fixed blocks have round rods fixedly connected to their surfaces, and the arc surfaces of the two round rods are slidably connected to baffles.

[0018] With the above technical solution, during the movement of the two molds, the lack of shielding at the injection port will cause residual injection material to drip from the injection port. The dripped injection material will solidify quickly and is inconvenient to clean.

[0019] Furthermore, the arc surface of the round rod is fitted with two springs, the ends of the two springs are fixedly connected to the baffle, and the other end of the springs is fixedly connected to the fixing block.

[0020] The above technical solution allows the baffle to quickly reset, thereby improving the stability of the shielding.

[0021] Furthermore, the collection mechanism includes a collection box, which is detachably installed with the processing box. The inner wall of the processing box has two sliding grooves, and the surface of the collection box is fixedly connected to two locking strips. The size of the locking strips is adapted to the size of the sliding grooves, and the locking strips can slide on the inner wall of the sliding grooves.

[0022] The above technical solution allows the cooled workpiece in the injection mold to fall into the collection box when the mold is separated. The collection box is easy to disassemble, making it convenient to collect and remove the workpiece.

[0023] Furthermore, two hoppers are fixedly connected to the inner wall of the processing box.

[0024] With the above technical solution, when the mold is opened, the injection molded part will first fall into the hopper. The lower opening of the hopper is small, so that the injection molded part falls stably into the collection box.

[0025] The above-described solution of this utility model has at least the following beneficial effects:

[0026] This invention, by setting up a push-pull reset mechanism and a blocking mechanism, allows the mold on one side to be cooled while the mold on the other side is being injected, thereby improving the efficiency of injection molding and effectively increasing production output.

[0027] This invention, by setting up a collection mechanism, installs a collection box under the two mold bodies, so that when the molds are separated, the workpiece that has cooled in the injection mold will fall into the collection box, and the collection box is easy to disassemble, thus making it convenient to collect and take out the workpiece. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a utility model Figure 1 A structural diagram from another perspective;

[0030] Figure 3 This is a cross-sectional structural diagram of the processing box of this utility model;

[0031] Figure 4 This is a schematic diagram of the shielding mechanism of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Processing box; 2. Mold body; 3. Injection port; 4. Push-pull reset mechanism; 41. First hydraulic cylinder; 42. Second hydraulic cylinder; 43. Sliding hole; 44. Sliding block; 45. Fixing rod; 5. Blocking mechanism; 51. Fixing block; 52. Round rod; 53. Baffle; 54. Spring; 6. Collection mechanism; 61. Collection box; 62. Hopper; 63. Clamping strip; 64. Slide groove. Detailed Implementation

[0034] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0035] like Figures 1 to 4As shown, an embodiment of this utility model provides a quick reset and ejection mechanism for injection molds, comprising: a processing box 1; two mold bodies 2 located within the cavity of the processing box 1 for molding injection workpieces; an injection port 3 located on the upper surface of the processing box 1 for injection molding into the mold bodies 2; a push-pull reset mechanism 4 located on the surface of the processing box 1 to improve injection molding efficiency; a blocking mechanism 5 located on the inner wall of the processing box 1 to block the injection port 3; and a collection mechanism 6 located on the inner wall of the processing box 1 for convenient collection of detached injection workpieces.

[0036] like Figures 1 to 4 As shown, the push-pull reset mechanism 4 includes a first hydraulic cylinder 41, which is fixedly connected to the processing box 1. The output end of the first hydraulic cylinder 41 is fixedly connected to the mold body 2. A second hydraulic cylinder 42 is fixedly connected to the surface of the mold body 2. Two fixing rods 45 are fixedly connected to the surfaces of the two mold bodies 2. During injection molding, the colloid is injected into one side of the mold body 2 through the injection port 3. After the mold body 2 is finished being injected, the first hydraulic cylinder 41 operates, pulling the two mold bodies 2 to move simultaneously. One side of the mold body 2 disengages from the injection port 3, while the other side of the mold body 2 faces the injection port 3. The mold body 2 that has finished injection is cooled, while the other side of the mold body 2 is injected, thus... During the cooling process, injection molding is performed again, thereby improving the efficiency of injection molding. After the mold body 2 on one side is cooled, the second hydraulic cylinder 42 is activated, pushing the half mold of the mold body 2 to move and separate the mold body 2. The molded injection workpiece will be separated from the mold body 2, so that while one mold is cooling, the other mold can be injected at the same time, thereby improving the efficiency of injection molding. The surface of the processing box 1 is provided with a sliding hole 43, and two sliders 44 are slidably connected to the inner wall of the sliding hole 43. The sliders 44 are fixedly connected to the second hydraulic cylinder 42, increasing the connection of the second hydraulic cylinder 42, thereby improving the stability of the overall structure and making the equipment operate more stably.

[0037] The shielding mechanism 5 includes four fixed blocks 51, which are fixedly connected to the processing box 1. Two fixed blocks 51 are fixedly connected to the surface of two fixed blocks 51, and two round rods 52 are slidably connected to the arc surfaces of the two round rods 52. At this time, the baffles 53 do not shield the injection port 3. The spring 54 on one side of the baffle 53 is in a stretched state, and the spring 54 on the other side of the baffle 53 is in a compressed state. The springs 54 on both sides of the baffle 53 return to their original positions, causing the baffle 53 to block the injection port 3. When the mold body 2 moves, it will push the baffle 53 open. During the movement of the two molds, the lack of shielding at the injection port 3 will cause residual injection material in the injection port 3 to drip. The dripped injection material will solidify quickly and is inconvenient to clean. Two springs 54 are sleeved on the arc surfaces of the round rods 52. The ends of the two springs 54 are fixedly connected to the baffles 53, and the other ends of the springs 54 are fixedly connected to the fixed blocks 51. The springs 54 distributed on both sides allow the baffles 53 to quickly return to their original positions, thereby improving the stability of the shielding.

[0038] The collection mechanism 6 includes a collection box 61, which is detachably installed from the processing box 1. Two grooves 64 are formed on the inner wall of the processing box 1. Two retaining strips 63 are fixedly connected to the surface of the collection box 61. The size of the retaining strips 63 matches the size of the grooves 64, and the retaining strips 63 can slide on the inner wall of the grooves 64. Molded injection molded parts detach from the mold body 2 and fall into the collection box 61, thus collecting the injection molded parts. After the collection box 61 is full, the operator pulls it out, and the retaining strips 63 slide in the grooves 64. The movement allows the collection box 61 to slide stably. The locking strip 63 is inserted into the slide groove 64, and the collection box 61 can be installed below the two mold bodies 2. When the molds are separated, the cooled workpieces in the injection mold will fall into the collection box 61. The collection box 61 is easy to disassemble, so it is convenient to collect and take out the workpieces. The inner wall of the processing box 1 is fixedly connected to two hoppers 62. When the mold is opened, the injection molded workpieces will fall into the hoppers 62 first. The lower opening of the hoppers 62 is small, so that the injection molded workpieces fall stably into the collection box 61.

[0039] In this embodiment of the invention, during injection molding, the colloid is injected into one side of the mold body 2 through the injection port 3. At this time, the baffle 53 does not block the injection port 3. The spring 54 on one side of the baffle 53 is in a stretched state, and the spring 54 on the other side of the baffle 53 is in a compressed state. After the mold body 2 is injection molded, the first hydraulic cylinder 41 operates, pulling both mold bodies 2 to move simultaneously. At this time, the springs 54 on both sides of the baffle 53 reset, causing the baffle 53 to block the injection port 3. One side of the mold body 2 disengages from the injection port 3, and the other side of the mold body 2 faces the injection port 3. The mold body 2 will push the baffle 53 away, and the injection-molded mold body 2 will then proceed with the injection process. While the other mold body 2 is cooling, injection molding is performed on the other side. This allows for injection molding to be performed again during the cooling process, thereby improving the efficiency of the injection molding process. After the mold body 2 on one side has cooled down, the second hydraulic cylinder 42 is activated, pushing the half mold of the mold body 2 to move and separate the mold body 2. The molded injection workpiece is then removed from the mold body 2 and falls into the collection box 61, thus collecting the injection workpiece. Once the collection box 61 is full, the operator pulls it out. The retaining strip 63 slides in the slide groove 64, allowing the collection box 61 to slide stably. By inserting the retaining strip 63 into the slide groove 64, the collection box 61 can be installed under the two mold bodies 2.

[0040] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A quick reset and ejection mechanism for injection molds, characterized in that, include: Processing box (1); Two mold bodies (2) are located inside the cavity of the processing box (1) to achieve the shaping of injection molded workpieces; Injection port (3), which is located on the upper surface of the processing box (1) to enable injection molding into the mold body (2); Push-pull reset mechanism (4), which is disposed on the surface of the processing box (1) to improve the injection molding efficiency; The shielding mechanism (5) is installed on the inner wall of the processing box (1) to shield the injection port (3); Collection mechanism (6) is provided on the inner wall of the processing box (1) to facilitate the collection of detached injection molded workpieces.

2. The injection mold quick reset and ejection mechanism according to claim 1, characterized in that, The push-pull reset mechanism (4) includes a first hydraulic cylinder (41), which is fixedly connected to the processing box (1). The output end of the first hydraulic cylinder (41) is fixedly connected to the mold body (2). A second hydraulic cylinder (42) is fixedly connected to the surface of the mold body (2). Two fixing rods (45) are fixedly connected to the surfaces of the two mold bodies (2).

3. The injection mold quick reset and ejection mechanism according to claim 2, characterized in that, The surface of the processing box (1) is provided with a sliding hole (43), and two sliders (44) are slidably connected to the inner wall of the sliding hole (43). The sliders (44) are fixedly connected to the second hydraulic cylinder (42).

4. The injection mold quick reset and ejection mechanism according to claim 1, characterized in that, The shielding mechanism (5) includes four fixed blocks (51), which are fixedly connected to the processing box (1). Two of the fixed blocks (51) are fixedly connected to round rods (52), and the arc surfaces of the two round rods (52) are slidably connected to baffles (53).

5. The injection mold quick reset and ejection mechanism according to claim 4, characterized in that, The circular rod (52) has two springs (54) on its arc surface. The ends of the two springs (54) are fixedly connected to the baffle (53), and the other end of the springs (54) is fixedly connected to the fixing block (51).

6. The injection mold quick reset and ejection mechanism according to claim 1, characterized in that, The collection mechanism (6) includes a collection box (61), which is detachably installed with the processing box (1). The inner wall of the processing box (1) has two sliding grooves (64), and the surface of the collection box (61) is fixedly connected with two locking strips (63). The size of the locking strips (63) is adapted to the size of the sliding grooves (64), and the locking strips (63) can slide on the inner wall of the sliding grooves (64).

7. The injection mold quick reset and ejection mechanism according to claim 6, characterized in that, The inner wall of the processing box (1) is fixedly connected to two hoppers (62).