Thickness-adjustable pp hollow plate forming die

Abstract

This utility model belongs to the technical field of hollow board processing molds, and in particular to an adjustable thickness PP hollow board molding mold. It includes a mold body with a cavity for storing material inside. One side of the cavity has a through hole for connecting to an extruder, and the other side has an opening. An extrusion seat is located on the front of the mold body, and an extrusion template is installed inside the extrusion seat. The back of the extrusion template is aligned with the opening. This utility model utilizes an embedded groove, an extrusion seat, an extrusion template, a mounting hole, a fixing mechanism, a movable groove, a compression spring, and a fixing pin in conjunction. The inner diameter of the embedded groove matches the outer diameter of the extrusion seat. The fixing pin is movably inserted into the mounting hole. By pulling the fixing pin up and down, the extrusion seat can be quickly disassembled and assembled, making operation convenient. It allows for easy replacement of different extrusion templates, enabling the processing of PP hollow boards of different thicknesses. The design can be adjusted according to different processing needs, facilitating better processing and production.

Description

Technical Field

[0001] This utility model relates to the field of hollow board processing mold technology, specifically an adjustable thickness PP hollow board forming mold. Background Technology

[0002] PP hollow board, as a lightweight, high-strength, and environmentally friendly new material, has been widely used in packaging, construction, automobiles, and many other fields. Made primarily of polypropylene through extrusion molding, its unique lattice-like cross-section endows it with numerous superior properties. However, with the increasing diversification of market demands, traditional PP hollow board molding dies have revealed significant limitations. Traditional PP hollow board molding dies typically only produce products of a single thickness. When the market demands PP hollow boards of different thicknesses, manufacturers must frequently disassemble and replace the molds. This process is not only time-consuming and labor-intensive, severely impacting production efficiency, but also significantly increasing production costs. For example, in the packaging industry, different products have varying requirements for packaging material thickness; frequent mold changes make it difficult for companies to quickly respond to market demands, resulting in missed business opportunities. Moreover, to meet the production needs of various thicknesses, companies need to purchase a large number of molds of different specifications, which undoubtedly occupies a significant amount of capital and storage space. In today's market environment, the demand for PP hollow boards shows a trend towards diversification and personalization. In the logistics packaging sector, to adapt to the varying weights, sizes, and protection requirements of different products, PP hollow boards with adjustable thickness are needed to provide optimal packaging solutions. For example, packaging fragile items may require thicker PP hollow boards to enhance cushioning and protection, while thinner boards can be used for packaging lightweight products to reduce costs. In the construction industry, PP hollow boards can be used as sound and heat insulation materials, and different building scenarios and design requirements also necessitate diverse thicknesses. Furthermore, with increasing environmental awareness, recyclable and reusable PP hollow boards are gaining popularity, and their adjustable thickness further enhances their flexibility and versatility, better meeting the needs of sustainable development.

[0003] Patent CN222431536U has been published, specifically disclosing a technical solution for "a polypropylene hollow board molding die, including a base, a rotating seat, springs, a carrier template, and a molding die body. The rotating seat is rotatably mounted on the base, and several springs are circularly mounted on the top side of the rotating seat. A carrier template is mounted on the top side of the springs, and several molding die bodies are mounted at equal intervals on the carrier template." This solution achieves the technical effect of "using a motor to drive the rotating seat to rotate, thereby achieving synchronous rotation of the carrier template connected by springs, realizing the position adjustment of the molding die body. At the same time, during injection molding, a magnetic force is generated by energizing a pulsating electromagnet, and the magnetic force of the pulsating electromagnet changes, thereby changing the adsorption force between the electromagnet and the iron seat of the carrier template. The carrier template vibrates and shakes the molding die body through the springs, thereby ensuring that the molten polypropylene is fully filled in the molding die body, improving the product quality of the polypropylene hollow board."

[0004] Technical Improvement: Existing PP hollow board molding dies are inconvenient to adjust the thickness of the processed PP hollow boards during use. They can generally only produce products of a single thickness specification, making it difficult to adjust the thickness according to different processing requirements, which limits their use in the processing and production process. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable thickness PP hollow board molding die to solve the problems mentioned in the background art and overcome its technical defects.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an adjustable thickness PP hollow board molding die, including a die body, the die body having a cavity for storing materials, a through hole for connecting to an extruder on one side of the cavity, an opening on the other side of the cavity, an extrusion seat on the front of the die body, an extrusion template installed inside the extrusion seat, the back of the extrusion template being connected to the opening, a cooling chamber at the bottom of the cavity, and a fixing mechanism on the extrusion seat.

[0007] As a further improvement of this utility model, a coolant inlet and a coolant outlet are respectively provided on both sides of the cooling chamber.

[0008] As a further improvement of this utility model: a sealing ring is provided on the back of the extrusion seat, and a sealing groove is provided on the front of the mold body, with the sealing ring and the sealing groove being movably connected.

[0009] As a further improvement of this utility model: a condensation plate is provided on the front side of the mold body, and the condensation plate is symmetrically attached to the upper and lower sides of the extrusion seat.

[0010] As a further embodiment of this utility model: the condenser plate and the cooling chamber are connected by a pipe, and a pump body is installed inside the cooling chamber, through which coolant is introduced into the condenser plate.

[0011] As a further improvement of this utility model: a cold air fan is fixedly installed on the front of the mold body, and the cold air fans are symmetrically distributed on the upper and lower sides of the mold body.

[0012] As a further improvement of this utility model: the front of the mold body is provided with an embedding groove, the outer diameter of the embedding groove is adapted to the inner diameter of the extrusion seat, and mounting holes are provided on the upper and lower sides of the embedding groove.

[0013] As a further embodiment of this utility model: the fixing mechanism includes a movable groove, a compression spring and a fixing pin. The movable groove is disposed inside the extrusion seat, and a compression spring is disposed inside the extrusion seat. A fixing pin is disposed at one end of the compression spring. The fixing pin is movably sleeved with the movable groove. The outer diameter of one end of the fixing pin is adapted to the inner diameter of the mounting hole. The fixing pin is movably inserted into the mounting hole.

[0014] Compared with the prior art, the beneficial effects of this utility model include:

[0015] 1. This utility model utilizes an embedded groove, an extrusion seat, an extrusion template, a mounting hole, a fixing mechanism, a movable groove, a compression spring, and a fixing pin. The inner diameter of the embedded groove matches the outer diameter of the extrusion seat, and the fixing pin is movably inserted into the mounting hole. By pulling the fixing pin up and down, the extrusion seat can be quickly disassembled and assembled, making it easy to operate and use. It is convenient to replace different extrusion templates and can process PP hollow boards of different thicknesses. It can be adjusted according to different processing needs, facilitating better processing and production. By setting a sealing groove on the front of the mold body and a sealing ring on the back of the extrusion seat, the sealing ring and the sealing groove can be movably connected, which can improve the sealing performance between the extrusion seat and the mold body, preventing leakage during material extrusion and affecting the working effect.

[0016] 2. This utility model, by setting up a cooling chamber and a condensing plate, with the condensing plate connected to the cooling chamber via a pipe, and the condensing plate symmetrically attached to the upper and lower sides of the extrusion seat, and simultaneously fixing a cold air fan on the front of the mold body, with the cold air fans symmetrically distributed on the upper and lower sides of the mold body, facilitates rapid cooling of the material during extrusion processing, improving the extrusion molding effect, thereby enhancing the processing and production of PP hollow boards and facilitating better processing and production. Attached Figure Description

[0017] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0018] Figure 1 The schematic diagram shows an overall structural schematic diagram according to one embodiment of the present invention;

[0019] Figure 2 The schematic diagram shows a mold body structure according to one embodiment of the present invention;

[0020] Figure 3 The schematic diagram shows a cross-sectional view of the overall structure of a mold body according to one embodiment of the present invention;

[0021] Figure 4 The schematic diagram shows a back structure of an extruder according to one embodiment of the present invention;

[0022] Figure 5 The schematic diagram shows a cross-sectional view of one side of the extrusion seat according to one embodiment of the present invention;

[0023] The following are the labels in the diagram: 1. Mold body; 2. Cavity; 3. Through hole; 4. Cooling cavity; 5. Embedded groove; 6. Opening; 7. Sealing groove; 8. Condensation plate; 9. Air cooler; 10. Mounting hole; 11. Extrusion seat; 12. Extrusion template; 13. Sealing ring; 14. Fixing mechanism; 1401. Movable groove; 1402. Compression spring; 1403. Fixing pin. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0025] An embodiment of the present invention is shown in conjunction with the accompanying drawings.

[0026] Please see Figures 1 to 5 In this embodiment: the adjustable thickness PP hollow board molding die includes a die body 1, the die body 1 has a cavity 2 for storing materials inside, a through hole 3 for connecting to an extruder on one side of the cavity 2, an opening 6 on the other side of the cavity 2, an extrusion seat 11 on the front of the die body 1, an extrusion template 12 installed inside the extrusion seat 11, the back of the extrusion template 12 is opposite to the opening 6, a cooling cavity 4 is provided at the bottom of the cavity 2, and a fixing mechanism 14 is provided on the extrusion seat 11.

[0027] In this embodiment, a coolant inlet and a coolant outlet are respectively provided on both sides of the cooling chamber 4. The coolant inlet and coolant outlet facilitate the injection and discharge of coolant into the cooling chamber 4, which is convenient for cooling and reducing the temperature of the extruded material.

[0028] In this embodiment, a sealing ring 13 is provided on the back of the extrusion seat 11, and a sealing groove 7 is provided on the front of the mold body 1. The sealing ring 13 and the sealing groove 7 are movably connected, which can improve the connection sealing between the extrusion seat 11 and the mold body 1, and prevent the extruded material from easily leaking and affecting the working effect.

[0029] In this embodiment, a condensing plate 8 is provided on the front of the mold body 1. The condensing plate 8 is symmetrically attached to the upper and lower sides of the extrusion seat 11. The condensing plate 8 is connected to the cooling chamber 4 through a pipe. A pump body is installed inside the cooling chamber 4, and the pump body introduces coolant into the condensing plate 8. By controlling the operation of the pump body, it is convenient to introduce the coolant inside the cooling chamber 4 into the condensing plate 8, which can quickly cool down the extruded material inside the extrusion seat 11, facilitate the extrusion molding of the material, and improve the processing and production quality.

[0030] In this embodiment, a cooler 9 is fixedly installed on the front of the mold body 1, and the cooler 9 is symmetrically distributed on the upper and lower sides of the mold body 1. By controlling the cooler 9 to work, the heat adsorbed on the condenser plate 8 can be quickly dissipated, which can further improve the cooling effect on the extruded material.

[0031] In this embodiment, the mold body 1 has an embedding groove 5 on its front side. The outer diameter of the embedding groove 5 is adapted to the inner diameter of the extrusion seat 11, and mounting holes 10 are provided on the upper and lower sides of the embedding groove 5. The fixing mechanism 14 includes a movable groove 1401, a compression spring 1402, and a fixing pin 1403. The movable groove 1401 is disposed inside the extrusion seat 11, and the compression spring 1402 is disposed inside the extrusion seat 11. A fixing pin 1403 is provided at one end of the compression spring 1402. The fixing pin 1403 is movably sleeved with the movable groove 1401. The outer diameter of one end of the 1403 is adapted to the inner diameter of the mounting hole 10. The fixing pin 1403 is movably inserted into the mounting hole 10. By setting the outer diameter of the embedded groove 5 to be adapted to the inner diameter of the extrusion seat 11, the fixing pin 1403 is movably inserted into the mounting hole 10. During use, by pulling the fixing pin 1403 up and down, the fixing pin 1403 can be connected or separated from the mounting hole 10, which makes it convenient for users to quickly disassemble and assemble the extrusion seat 11 and replace different extrusion templates 12, which facilitates better processing and production.

[0032] Working principle: When in use, the operator connects the through hole 3 on the back of the mold body 1 to the extruder head. The material can be squeezed into the mold body 1 through the extruder, and then the material is easily extruded and shaped through the opening 6 and the extrusion template 12. By controlling the operation of the pump inside the cooling chamber 4, coolant can be introduced into the condenser plate 8 to facilitate rapid cooling of the extruded material inside the extrusion template 12. At the same time, controlling the operation of the air cooler 9 can further improve the cooling effect, facilitate the extrusion and shaping of the material, and improve the processing and production quality. By pulling the fixing pin 1403 up and down, the fixing pin 1403 can be connected or separated from the mounting hole 10, so that the user can quickly disassemble and assemble the extrusion seat 11 and replace different extrusion templates 12 for better processing and production.

[0033] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A thickness-adjustable PP hollow plate forming die comprising a die body (1), characterized in that: The mold body (1) has a cavity (2) for storing materials inside. A through hole (3) for connecting to an extruder is provided on one side of the cavity (2), and an opening (6) is provided on the other side of the cavity (2). An extrusion seat (11) is provided on the front of the mold body (1). An extrusion template (12) is installed inside the extrusion seat (11). The back of the extrusion template (12) is connected to the opening (6). A cooling chamber (4) is provided at the bottom of the cavity (2). A fixing mechanism (14) is provided on the extrusion seat (11).

2. The thickness-adjustable PP hollow plate forming mold according to claim 1, characterized by, The cooling chamber (4) is provided with a coolant inlet and a coolant outlet on both sides respectively.

3. The thickness-adjustable PP hollow plate forming mold according to claim 1, wherein, The back of the extrusion seat (11) is provided with a sealing ring (13), and the front of the mold body (1) is provided with a sealing groove (7). The sealing ring (13) and the sealing groove (7) are movably connected.

4. The thickness-adjustable PP hollow plate forming mold according to claim 1, wherein, The mold body (1) is provided with a condensing plate (8) on the front side, and the condensing plate (8) is symmetrically attached to the upper and lower sides of the extrusion seat (11).

5. The adjustable thickness PP hollow board molding die according to claim 4, characterized in that, The condenser plate (8) is connected to the cooling chamber (4) through a pipe. A pump is installed inside the cooling chamber (4), and the pump introduces the coolant into the condenser plate (8).

6. The adjustable thickness PP hollow board molding die according to claim 1, characterized in that, A cold air blower (9) is fixedly installed on the front of the mold body (1), and the cold air blower (9) is symmetrically distributed on the upper and lower sides of the mold body (1).

7. The adjustable thickness PP hollow board molding die according to claim 1, characterized in that, The mold body (1) has an embedding groove (5) on its front side. The outer diameter of the embedding groove (5) is compatible with the inner diameter of the extrusion seat (11), and mounting holes (10) are provided on the upper and lower sides of the embedding groove (5).

8. The adjustable thickness PP hollow board molding die according to claim 1, characterized in that, The fixing mechanism (14) includes a movable groove (1401), a compression spring (1402), and a fixing pin (1403). The movable groove (1401) is located inside the extrusion seat (11). The compression spring (1402) is located inside the extrusion seat (11). A fixing pin (1403) is located at one end of the compression spring (1402). The fixing pin (1403) is movably connected to the movable groove (1401). The outer diameter of one end of the fixing pin (1403) is adapted to the inner diameter of the mounting hole (10). The fixing pin (1403) is movably inserted into the mounting hole (10).

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