Environment-friendly plastic forming mold

Through the innovative design of the limiting rod, rotating shaft, and fastening structure, the problem of requiring tools for disassembly and assembly of existing plastic molds has been solved, realizing rapid disassembly and assembly and stable connection of molds, thus improving operational efficiency and stability.

CN224130341UActive Publication Date: 2026-04-17RUIAN ZHONGYANG MOLD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUIAN ZHONGYANG MOLD CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing plastic molds require tools for disassembly and assembly, which makes the operation cumbersome and reduces the efficiency of disassembly and assembly.

Method used

The design incorporates a limiting rod, a rotating shaft, connecting parts, and a snap-fit ​​structure, allowing for quick disassembly and assembly of the mold via manual operation. The stable connection of the mold is achieved through the cooperation of the limiting rod and the limiting groove, combined with the rotation of the snap-fit ​​structure.

Benefits of technology

It enables rapid assembly and disassembly of molds, improving assembly and disassembly efficiency, and ensures the stability and convenience of molds through a limiting structure.

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Abstract

The utility model relates to the technical field of injection molding molds, in particular to an environment-friendly plastic molding mold which comprises a first mold, a second mold arranged below the first mold, an auxiliary plate arranged above the first mold, and at least two limiting rods arranged on the front surface and the rear surface of the first mold and close to the second mold, rotating shafts are rotationally arranged at the positions, close to the first mold, of the front surface and the rear surface of the second mold and located below the limiting rods, connecting pieces are arranged on the outer walls of the rotating shafts, limiting grooves are formed in one ends of the connecting pieces, the limiting rods can be located in the limiting grooves, and buckling structures are arranged between the two sides of openings of the limiting grooves; the environment-friendly plastic forming mold has the beneficial effects that the disassembly and assembly efficiency can be improved, and the first mold and the second mold can be disassembled and assembled without using a disassembly tool.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding mold technology, specifically to an environmentally friendly plastic molding mold. Background Technology

[0002] With the rapid development of society, all kinds of tools and products used in our daily production and life, from large machine tool bases and housings to small screws, buttons, and the housings of various household appliances, are closely related to molds. Plastic molds are tools used in the plastics processing industry in conjunction with plastic molding machines to give plastic products a complete shape and precise dimensions. Due to the wide variety of plastics and processing methods, and the varying complexity of plastic molding machines and plastic products, the types and structures of plastic molds are also diverse.

[0003] A plastic mold that is easy to disassemble and replace, disclosed in publication number "CN222819440U", includes a first mold, a second mold disposed below the first mold, and an auxiliary plate disposed above the first mold; it also includes: a detachable rotating shaft disposed on the front and rear surfaces of the second mold, with connecting rods disposed on both the front and rear surfaces of the second mold, and the detachable rotating shaft rotatably connected through the connecting rods; threaded holes disposed on both the front and rear surfaces of the first mold, with screws disposed on both the front and rear surfaces of the first mold, and the screws being fixedly connected through the threaded holes; during disassembly, the screws are unscrewed from the threaded holes, the connecting rods are rotated clockwise by more than 90 degrees, and then the limiting rod is removed from the limiting hole to separate the first mold and the second mold, allowing the finished mold to be removed.

[0004] However, in the aforementioned documents, when disassembling or assembling the first mold and the second mold, it is still necessary to use a screwdriver or other disassembly tools to remove and install the screws, which is still quite cumbersome and reduces the efficiency of disassembly and assembly. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an environmentally friendly plastic molding mold that can improve the efficiency of disassembly and assembly and can disassemble and assemble the first mold and the second mold without the use of disassembly tools, in order to address the shortcomings of the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly plastic molding mold, comprising a first mold, a second mold disposed below the first mold, and an auxiliary plate disposed above the first mold, characterized in that: at least two limiting rods are provided on the front and rear surfaces of the first mold near the second mold; a rotating shaft is rotatably disposed on the front and rear surfaces of the second mold near the first mold and below the limiting rods; a connecting member is provided on the outer wall of the rotating shaft; a limiting groove is opened at one end of the connecting member; the limiting rod can be located within the limiting groove; and a fastening structure is provided between the two sides of the opening of the limiting groove.

[0007] The above technical solution, compared with the prior art where the first mold and the second mold need to be disassembled using disassembly tools, utilizes a limiting rod integrally formed in the first mold and a rotating shaft, connecting piece, and fastening structure on the second mold. When disassembly is required, simply open the fastening structure, rotate the connecting piece to disengage the limiting rod from the limiting groove, and the locking can be released, thus completing the disassembly. Installation is also simple: just rotate the connecting piece in the opposite direction to make the limiting rod fall into the limiting groove, and then fasten the fastening structure to achieve the limiting function, preventing the connecting piece from rotating and disengaging from the limiting rod due to external force, thereby ensuring the stability and ease of disassembly and assembly between the first mold and the second mold.

[0008] A further feature of this invention is that the fastening structure includes a fastening member, one end of which is provided with a connecting end. The connecting member is located above the limiting groove and has a rotating hole for the connecting end to rotate. One end of the fastening member is provided with a fastening part, and the connecting member is located below the limiting groove and has a bent piece. A slot is formed between the bent piece and the connecting member, and the fastening part can be located within the slot.

[0009] Using the above technical solution: During the installation of the first mold and the second mold, the fastening part is made to engage with the slot by rotating the fastening component. During the disassembly process, the worker uses his hand to pry the fastening part out of the slot, so that the fastening part is disengaged from the slot, and the fastening component is rotated in the opposite direction to separate the first mold and the second mold.

[0010] A further feature of this invention is that the other end of the connector away from the limiting groove is provided with a mounting hole for inserting a rotating shaft.

[0011] By adopting the above technical solution: when the staff injects the model, the limit rod is aligned with the limit hole, and then the limit rod is installed into the limit hole, which can improve the stability of the injection mold and greatly improve the success rate of the finished product.

[0012] A further feature of this invention is that the first mold, the second mold, and the auxiliary plate are all provided with limit holes on their upper surfaces. A rotating rod is provided in the limit hole and passes through the limit hole to fix the first mold, the second mold, and the auxiliary plate together.

[0013] The above technical solution is adopted:

[0014] A further feature of this invention is that the limiting hole has an internal thread, the rotating rod has an external thread that matches the internal thread, and the top of the rotating rod extends to one side to provide a handle.

[0015] Using the above technical solution: During use, the operator only needs to hold the handle and rotate it to install the rotating rod into the limiting hole and to unscrew the rotating rod out of the limiting hole, which is convenient for the operator to disassemble and assemble.

[0016] A further feature of this invention is that the first mold has an upper cavity, the second mold has a lower cavity, the upper surface of the first mold has an injection hole, and the auxiliary plate has an auxiliary nozzle, which is vertically aligned with the lower injection hole.

[0017] Using the above technical solution: when the worker is performing injection molding, the auxiliary nozzle is located above the injection hole, and then the raw material can be injected into the entire cavity formed by the upper cavity and the lower cavity, which facilitates injection molding.

[0018] A further feature of this invention is that the auxiliary plate has handles at both ends, and the handles have handle grooves.

[0019] With the above technical solution, when workers disassemble the mold, they only need to hold the handle and lift the auxiliary plate upwards, which is convenient to operate. At the same time, the handle groove makes it easier for workers to hold the mold.

[0020] A further feature of this invention is that: the first mold and the second mold are provided with a water inlet on one side and a water outlet on the other side, and the water inlet and the water outlet are connected by a flow channel inside the first mold and the second mold.

[0021] The above technical solution, through the setting of water outlet, water inlet and flow channel, and the connection of water outlet and water inlet to external water tank, enables the mold to have a cooling function, which can help cool the molded product, thereby improving the product molding efficiency and quality.

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is an exploded view of the present invention.

[0025] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0026] Labeling: First mold 1, limiting rod 11, injection hole 12, second mold 2, rotating shaft 21, connecting piece 22, limiting groove 221, rotating hole 222, bending piece 223, slot 223a, mounting hole 224, auxiliary plate 3, auxiliary nozzle 31, handle 311, handle groove 311a, fastening structure 4, fastening piece 41, connecting end 411, fastening part 412, limiting hole 5, rotating rod 6, external thread 61, handle 62, water inlet 7, water outlet 8. Detailed Implementation

[0027] In the accompanying drawings of this specific embodiment and the disclosed embodiments, only the structures involved in the disclosed embodiments are involved. Other structures can be referred to with ordinary design. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of this utility model, they are protected by patent law.

[0028] like Figure 1-3 The mold shown is an environmentally friendly plastic molding mold, including a first mold 1, a second mold 2 below the first mold 1, an auxiliary plate 3 above the first mold 1, at least two limiting rods 11 on the front and rear surfaces of the first mold 1 near the second mold 2, a rotating shaft 21 rotatably provided on the front and rear surfaces of the second mold 2 near the first mold 1 and below the limiting rods 11, a connecting member 22 on the outer wall of the rotating shaft 21, a limiting groove 221 opened at one end of the connecting member 22, the limiting rod 11 can be located in the limiting groove 221, and a fastening structure 4 is provided between the two sides of the opening of the limiting groove 221.

[0029] like Figure 3 The fastening structure 4 shown includes a fastening member 41. One end of the fastening member 41 is provided with a connecting end 411. The connecting member 22 is located above the limiting groove 221 and is provided with a rotating hole 222 for the connecting end 411 to be rotatably connected. One end of the fastening member 41 is provided with a fastening part 412. The connecting member 22 is located below the limiting groove 221 and is provided with a bending piece 223. A slot 223a is formed between the bending piece 223 and the connecting member 22. The fastening part 412 can be located in the slot 223a. The other end of the connecting member 22 away from the limiting groove 221 is provided with a mounting hole 224 for the rotating shaft 21 to be inserted.

[0030] like Figure 2The first mold 1, the second mold 2, and the auxiliary plate 3 shown are all provided with limit holes 5 on their upper surfaces. A rotating rod 6 is provided in the limit hole 5 and passes through the limit hole 5 to fix the first mold 1, the second mold 2, and the auxiliary plate 3. The limit hole 5 is provided with an internal thread, and the rotating rod 6 is provided with an external thread 61 that is adapted to the internal thread. The top of the rotating rod 6 extends to one side and is provided with a handle 62.

[0031] like Figure 2 The first mold 1 shown has an upper cavity, and the second mold 2 has a lower cavity. The upper surface of the first mold 1 has an injection hole 12. The auxiliary plate 3 has an auxiliary nozzle 31, and the auxiliary nozzle 31 is vertically aligned with the injection hole 12 at the lower end. The auxiliary plate 3 has handles 311 at both ends, and the handles 311 have handle grooves 311a.

[0032] like Figure 2 The first mold 1 and the second mold 2 shown are provided with an inlet 7 on one side and an outlet 8 on the other side. The inlet 7 and the outlet 8 are connected by a flow channel inside the first mold 1 and the second mold 2. The specific flow channel structure can be referred to the existing structure.

[0033] In the use of this utility model, compared with the prior art where the first mold 1 and the second mold 2 require disassembly tools for disassembly, when disassembly is required, the worker only needs to manually pry the fastening part 412 out of the slot 223a, so that the fastening part 412 is disengaged from the slot 223a, and then rotate the fastening member 41 in the opposite direction to release the lock between the first mold 1 and the second mold 2. Then, by holding the handle 62 and rotating it, the limiting rod 11 can be turned out of the limiting hole 5 to complete the disassembly. Installation is also simple: just rotate the connecting member 22 in the opposite direction to make the limiting rod 11 fall into the limiting groove 221, and then rotate the fastening member 41 to make the fastening part 412 engage with the slot 223a, which plays a limiting role and prevents the connecting member 22 from being released.

[0034] The external force causes the mold to rotate and disengage from the limiting rod 11, thereby ensuring that the first mold 1 and the second mold 2 are in contact.

[0035] The stability and ease of assembly and disassembly between them.

Claims

1. An environmentally friendly plastic forming mold, comprising a first mold, a second mold arranged below the first mold, and an auxiliary plate arranged above the first mold, characterized in that: At least two limiting rods are provided on the front and rear surfaces of the first mold near the second mold. A rotating shaft is provided on the front and rear surfaces of the second mold near the first mold and below the limiting rods. A connecting member is provided on the outer wall of the rotating shaft. A limiting groove is opened at one end of the connecting member. The limiting rod can be located in the limiting groove. A fastening structure is provided between the two sides of the opening of the limiting groove.

2. An environmentally friendly plastic forming mold according to claim 1, characterized in that: The fastening structure includes a fastening member, one end of which is provided with a connecting end. The connecting member is located above the limiting groove and has a rotating hole for the connecting end to rotate. One end of the fastening member is provided with a fastening part. The connecting member is located below the limiting groove and has a bent piece. A slot is formed between the bent piece and the connecting member, and the fastening part can be located in the slot.

3. The mold for molding environment-friendly plastic according to claim 2, wherein: The connector has a mounting hole at the other end away from the limiting groove for inserting a rotating shaft.

4. An environmentally friendly plastic forming mold according to any one of claims 1-3, characterized in that: Limiting holes are provided on the upper surface of the first mold, the second mold, and the auxiliary plate. A rotating rod is provided in the limiting hole and passes through the limiting hole to fix the first mold, the second mold, and the auxiliary plate.

5. An environmentally friendly plastic forming mold according to claim 4, characterized in that: The limiting hole is provided with an internal thread, the rotating rod is provided with an external thread that matches the internal thread, and the top of the rotating rod extends to one side to provide a handle.

6. An environmentally friendly plastic forming mold according to claim 5, characterized in that: The first mold has an upper cavity, the second mold has a lower cavity, the upper surface of the first mold has an injection hole, and the auxiliary plate has an auxiliary nozzle, which is vertically aligned with the lower injection hole.

7. An environmentally friendly plastic forming mold according to claim 6, characterized in that: The auxiliary plate is provided with handles at both ends, and the handles are provided with handle grooves.

8. The mold for forming environment-friendly plastic according to claim 3 or 6, wherein: The first mold and the second mold are provided with a water inlet on one side and a water outlet on the other side. The water inlet and the water outlet are connected by a flow channel inside the first mold and the second mold.

Citation Information

Patent Citations

  • Plastic mold convenient to disassemble and replace

    CN222819440U