Double-layer injection mold for plastic box container

By designing a disassembly and pushing mechanism for a double-layer injection mold of a plastic box container, the problem of low mold disassembly efficiency was solved, enabling rapid disassembly and stable injection molding, thus improving operational convenience and practicality.

CN223644200UActive Publication Date: 2025-12-09SUZHOU SANYU MOULD CO LTD
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Patent Information

Application Number
CN202520036573.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2025-12-09
Estimated Expiration
2035-01-08

AI Technical Summary

Technical Problem

The existing injection molds are inefficient during disassembly, resulting in time-consuming disassembly, inspection and maintenance, and reduced ease of operation.

Method used

A double-layer injection mold for plastic box containers was designed, including a disassembly mechanism and a pushing mechanism. The upper and lower molds can be stably disassembled through the cooperation of threaded rods, threaded plates and limiting blocks, and the top plate can be stably lowered through the sliding limit of sliders and long shafts.

Benefits of technology

It improves mold disassembly efficiency, reduces disassembly time, and enhances operational convenience and injection molding stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of injection molds, and discloses a double-layer injection mold for a plastic box container, which is characterized in that a dismounting mechanism is arranged on the top of a bottom plate, a lower mold is arranged on one side of the dismounting mechanism, an upper mold is arranged on the top of the lower mold, a top plate is arranged on one side of the dismounting mechanism, and a pushing mechanism is arranged on the top of the top plate; the two long grooves are fixedly connected to the bottom of the top plate and the top of the bottom plate respectively, long blocks are movably connected to the inner walls of the two long grooves, threaded rods are rotatably connected to one sides of the long grooves, threaded plates are in threaded connection to the outer walls of the threaded rods, supporting blocks are fixedly connected to one sides of the threaded plates, and clamping blocks are fixedly connected to the interiors of the supporting blocks. According to the double-layer injection mold for the plastic box body container, the disassembly of the upper mold or the lower mold is realized through the arranged disassembly mechanism, and when the upper mold or the lower mold needs to be disassembled, overhauled and maintained, the good disassembly efficiency can be achieved, the consumed time is reduced in the disassembly process, and the convenience of the device in the operation process is enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a double-layer injection mold for plastic box containers. Background Technology

[0002] Injection molds are high-precision process equipment, mainly composed of a mold body and a mold support. They utilize the injection molding process to inject molten plastic into the mold cavity, where it cools and solidifies to form a plastic product of the desired shape and size. Injection molds play a crucial role in the manufacturing process, enabling the production of high-precision, high-quality, and complex plastic products.

[0003] Injection molds are used in the production and processing of plastic boxes and containers to shape them. However, common injection molds do not achieve good disassembly efficiency when they need to be disassembled and maintained after long-term use. The disassembly process takes a certain amount of time and reduces the convenience of the equipment operation. Utility Model Content

[0004] The purpose of this utility model is to provide a double-layer injection mold for plastic box containers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-layer injection mold for a plastic box container, including a bottom plate, a disassembly mechanism provided on the top of the bottom plate, a lower mold provided on one side of the disassembly mechanism, an upper mold provided on the top of the lower mold, a top plate provided on one side of the disassembly mechanism, and a pushing mechanism provided on the top of the top plate;

[0006] The disassembly mechanism includes two long slots, which are respectively fixedly connected to the bottom of the top plate and the top of the bottom plate. Long blocks are movably connected to the inner walls of both long slots. A threaded rod is rotatably connected to one side of each long slot. A threaded plate is threadedly connected to the outer wall of the threaded rod. A support block is fixedly connected to one side of the threaded plate. A locking block is fixedly connected inside the support block. A limit block is fixedly connected to one side of the support block. A limit rod is fixedly connected to one side of the long slot.

[0007] Preferably, the limiting block has a sliding hole inside, and the limiting block is slidably connected to the outer wall of the limiting rod through the sliding hole, so that the limiting block can move stably.

[0008] Preferably, the threads on the outer walls of the two ends of the threaded rod are in opposite directions, and a torsion sleeve is fixedly connected to the outer wall of the threaded rod, so as to facilitate the rotation of the threaded rod by the torsion sleeve, thereby achieving the purpose of disassembly.

[0009] Preferably, an opening is provided on one side of the long groove, and the locking block passes through the opening, allowing the locking block to move through the opening.

[0010] Preferably, two long blocks are provided, and the two long blocks are respectively fixedly connected to the top of the upper mold and the bottom of the lower mold to achieve stable positioning.

[0011] Preferably, a notch is provided on one side of the long block, and the notch is movably connected to the inner wall of the notch, so that the notch and the notch can cooperate to limit the long block.

[0012] Preferably, the pushing mechanism includes a long shaft, which is fixedly connected to the top of the base plate. A slider is slidably connected to the outer wall of the long shaft, and a support plate is fixedly connected to the top of the long shaft. A telescopic rod is fixedly connected inside the support plate to ensure that the molding process can be carried out stably.

[0013] Preferably, the slider has a through hole inside, and the slider is slidably connected to the outer wall of the long shaft through the through hole. The bottom end of the telescopic rod is fixedly connected to the top of the top plate, and the slider is fixedly connected to the back of the top plate to achieve stable movement.

[0014] Compared with the prior art, this utility model provides a double-layer injection mold for plastic box containers, which has the following beneficial effects:

[0015] 1. The double-layer injection mold of this plastic box container has a disassembly mechanism that allows for the disassembly of either the upper or lower mold. When disassembly and maintenance are required, it achieves good disassembly efficiency, reduces time consumption during the disassembly process, and enhances the convenience of the device operation.

[0016] 2. The double-layer injection mold for this plastic box container, through the set push mechanism, allows the slider to slide and limit on the outer wall of the long shaft, so that the top plate can stably drive the upper mold to descend, thereby achieving the purpose of stable injection molding, ensuring that the injection molding work can be carried out stably, and enhancing the practicality of the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view of the structure of this utility model;

[0019] Figure 2 This is a rear view of the structure of this utility model;

[0020] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure at the long block.

[0022] In the diagram: 1. Base plate; 2. Top plate; 3. Disassembly mechanism; 31. Long groove; 32. Long block; 33. Threaded rod; 34. Threaded plate; 35. Support block; 36. Locking block; 37. Limiting block; 38. Limiting rod; 4. Pushing mechanism; 41. Telescopic rod; 42. Slider; 43. Long shaft; 44. Support plate; 5. Upper mold; 6. Lower mold. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] This utility model provides the following technical solution:

[0026] Example 1

[0027] Combination Figures 1 to 4 A double-layer injection mold for a plastic box container includes a base plate 1, a disassembly mechanism 3 on the top of the base plate 1, a lower mold 6 on one side of the disassembly mechanism 3, an upper mold 5 on the top of the lower mold 6, a top plate 2 on one side of the disassembly mechanism 3, and a pushing mechanism 4 on the top of the top plate 2.

[0028] The disassembly mechanism 3 includes two long slots 31, which are fixedly connected to the bottom of the top plate 2 and the top of the bottom plate 1, respectively. Long blocks 32 are movably connected to the inner walls of both long slots 31. A threaded rod 33 is rotatably connected to one side of the long slot 31. A threaded plate 34 is threadedly connected to the outer wall of the threaded rod 33. A support block 35 is fixedly connected to one side of the threaded plate 34. A locking block 36 is fixedly connected inside the support block 35. A limit block 37 is fixedly connected to one side of the support block 35. A limit rod 38 is fixedly connected to one side of the long slot 31.

[0029] Furthermore, a sliding hole is provided inside the limiting block 37, and the limiting block 37 is slidably connected to the outer wall of the limiting rod 38 through the sliding hole, so that the limiting block 37 can move stably.

[0030] Furthermore, the threads on the outer walls of the two ends of the threaded rod 33 are in opposite directions, and a torsion sleeve is fixedly connected to the outer wall of the threaded rod 33, which facilitates the rotation of the threaded rod 33 through the torsion sleeve, thereby achieving the purpose of disassembly.

[0031] Furthermore, an opening is provided on one side of the long slot 31, through which the locking block 36 passes, allowing the locking block 36 to move.

[0032] Furthermore, two long blocks 32 are provided, which are fixedly connected to the top of the upper mold 5 and the bottom of the lower mold 6 respectively, to achieve the purpose of stable positioning.

[0033] Furthermore, a slot is provided on one side of the long block 32, and the locking block 36 is movably connected to the inner wall of the slot, so that the locking block 36 can cooperate with the slot to limit the long block 32.

[0034] Example 2

[0035] See Figures 1 to 4 Furthermore, based on Embodiment 1, the pushing mechanism 4 includes a long shaft 43, which is fixedly connected to the top of the base plate 1. A slider 42 is slidably connected to the outer wall of the long shaft 43. A support plate 44 is fixedly connected to the top of the long shaft 43. A telescopic rod 41 is fixedly connected inside the support plate 44 to ensure that the molding work can be carried out stably.

[0036] Furthermore, the slider 42 has a through hole inside, and the slider 42 is slidably connected to the outer wall of the long shaft 43 through the through hole. The bottom end of the telescopic rod 41 is fixedly connected to the top of the top plate 2, and the slider 42 is fixedly connected to the back of the top plate 2 to achieve stable movement.

[0037] In actual operation, when this device is used, the rotating sleeve can first drive the threaded rod 33 to rotate. Since the threaded plate 34 and the threaded rod 33 are threadedly connected, and the limiting block 37 can slide and limit the movement on the outer wall of the limiting rod 38, the rotational motion of the threaded rod 33 is converted into the linear motion of the threaded plate 34. The threaded plate 34 can drive the support block 35 to move, and the support block 35 can drive the locking block 36 to disengage from the inside of the long block 32, thus canceling the limitation on the long block 32. Then the long block 32 can be pulled out from the inside of the long groove 31, thereby realizing the disassembly of the upper mold 5 or the lower mold 6. When disassembly, inspection and maintenance are required, good disassembly efficiency can be achieved, reducing the time spent during disassembly and enhancing the convenience of device operation.

[0038] When the telescopic rod 41 is activated, it can drive the top plate 2 to descend. At the same time, the top plate 2 can drive the slider 42 to slide and limit on the outer wall of the long shaft 43, so that the top plate 2 can stably drive the upper mold 5 to descend, thereby achieving the purpose of stable injection molding, ensuring that the injection molding work can be carried out stably, and enhancing the practicality of the device.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A double-layer injection mold for a plastic box container, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a disassembly mechanism (3) at the top, a lower mold (6) is provided on one side of the disassembly mechanism (3), an upper mold (5) is provided on the top of the lower mold (6), a top plate (2) is provided on one side of the disassembly mechanism (3), and a pushing mechanism (4) is provided on the top of the top plate (2). The disassembly mechanism (3) includes a long groove (31), and there are two long grooves (31). The two long grooves (31) are fixedly connected to the bottom of the top plate (2) and the top of the bottom plate (1), respectively. The inner walls of the two long grooves (31) are movably connected to long blocks (32). A threaded rod (33) is rotatably connected to one side of the long groove (31). A threaded plate (34) is threadedly connected to the outer wall of the threaded rod (33). A support block (35) is fixedly connected to one side of the threaded plate (34). A locking block (36) is fixedly connected inside the support block (35). A limit block (37) is fixedly connected to one side of the support block (35). A limit rod (38) is fixedly connected to one side of the long groove (31).

2. The double-layer injection mold for a plastic box container according to claim 1, characterized in that: The limiting block (37) has a sliding hole inside, and the limiting block (37) is slidably connected to the outer wall of the limiting rod (38) through the sliding hole.

3. The double-layer injection mold for a plastic box container according to claim 1, characterized in that: The threads on the outer walls of the two ends of the threaded rod (33) are in opposite directions, and a torsion sleeve is fixedly connected to the outer wall of the threaded rod (33).

4. The double-layer injection mold for a plastic box container according to claim 1, characterized in that: An opening is provided on one side of the long groove (31), and the locking block (36) passes through the opening.

5. The double-layer injection mold for a plastic box container according to claim 1, characterized in that: Two long blocks (32) are provided, and the two long blocks (32) are respectively fixedly connected to the top of the upper mold (5) and the bottom of the lower mold (6).

6. The double-layer injection mold for a plastic box container according to claim 1, characterized in that: The long block (32) has a slot on one side, and the card block (36) is movably connected to the inner wall of the slot.

7. The double-layer injection mold for a plastic box container according to claim 1, characterized in that: The pushing mechanism (4) includes a long shaft (43), which is fixedly connected to the top of the base plate (1). A slider (42) is slidably connected to the outer wall of the long shaft (43). A support plate (44) is fixedly connected to the top of the long shaft (43). A telescopic rod (41) is fixedly connected inside the support plate (44).

8. The double-layer injection mold for a plastic box container according to claim 7, characterized in that: The slider (42) has a through hole inside, and the slider (42) is slidably connected to the outer wall of the long shaft (43) through the through hole. The bottom end of the telescopic rod (41) is fixedly connected to the top of the top plate (2), and the slider (42) is fixedly connected to the back of the top plate (2).