PVC sheath material hot cutting device

Abstract

The utility model relates to the technical field of PVC (polyvinyl chloride) processing, and particularly discloses a PVC sheath material hot cutting device which comprises a forming machine for hot melting forming and a hot cutting component arranged on the forming machine, the forming machine comprises a body, a discharging port is formed in the lower portion of the body, and a hot cutting assembly is installed at the discharging port and used for conducting hot cutting treatment on materials to be discharged. The hot cutting assembly comprises a rotating disc and a discharging plate combined with the rotating disc. Through the design of the fixing ring and the guide cover of the granulation opening, smooth extrusion and discharge of materials are facilitated, particle accumulation is avoided, the production rhythm is accelerated, and the yield in unit time is improved; and a rotating disc and a discharging plate in the hot cutting assembly are accurately matched, and a granulating opening and a cutting opening are efficiently cut, so that the produced PVC sheath material particles are uniform in length, smooth in surface and regular in shape, and the appearance quality and consistency of products are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of PVC processing technology, specifically to a PVC sheath material hot cutting device. Background Technology

[0002] PVC sheathing material is a composite material made from polyvinyl chloride as the base resin, with the addition of plasticizers, stabilizers, fillers, lubricants, and other additives, through processes such as mixing and plasticizing. Compared to traditional cold-cutting processes, hot-cutting of PVC sheathing material has advantages such as high production efficiency, good particle appearance quality, and no dust pollution, which can meet the needs of large-scale industrial production.

[0003] During hot cutting, issues such as cutter wear, improper cutter installation, or a mismatch between the cutter speed and the material extrusion speed can all lead to irregular particle shapes. For example, worn-out cutters with dull blades are prone to tearing during cutting, resulting in uneven particle surfaces; inconsistent cutter and material extrusion speeds can cause uneven particle lengths. Based on this, this application provides a hot cutting device for PVC sheathing materials. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a PVC sheath material hot cutting device, which solves the problem that irregular particle shapes may result from cutter wear, improper cutter installation, or mismatch between the cutter and the material extrusion speed.

[0005] The PVC sheath material hot cutting device of this utility model includes a molding machine for hot melt molding and a hot cutting component disposed on the molding machine;

[0006] The molding machine includes a body, and a discharge port is provided at the bottom of the body. A hot cutting component is installed at the discharge port for hot cutting the material to be discharged.

[0007] The hot cutting assembly includes a rotating disk and a discharge plate combined with the rotating disk. The discharge plate is installed at the discharge port. The rotating disk and the discharge plate correspond one-to-one and are used to process the material to be discharged.

[0008] Both the rotating disk and the discharge plate have corresponding granulation ports, and the rotating disk and the discharge plate fit together.

[0009] As a further improvement of this utility model, a retaining ring is provided on one side of the discharge plate outside the granulation port. The retaining ring is adapted to the discharge port and is used to fix the discharge plate.

[0010] As a further improvement of this utility model, an annular groove is provided on the other side of the discharge plate. The annular groove is adapted to the rotating disk, and the annular groove corresponds one-to-one with the retaining ring.

[0011] As a further improvement of this utility model, a flange is provided on the side of the rotating disk near the discharge plate, and the flange is rotatably connected to the annular groove of the discharge plate.

[0012] As a further improvement of this utility model, a positioning area is provided in the middle of the rotating disk, and a rotating component is provided in the positioning area to control the rotating disk to rotate around the annular groove.

[0013] As a further improvement of this utility model, the granulation port includes a fixing ring, which is arranged in a state where the upper part is smaller than the lower part and the lower part is larger, with a discharge area in the middle.

[0014] As a further improvement of this utility model, the top of the fixing ring is provided with a cutting edge at a preset angle, and the cutting edge is in contact with the granulation port of the discharge plate.

[0015] As a further improvement of this utility model, a guide cover is provided at the bottom of the fixing ring to assist in the discharge of material after hot cutting.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention, through the design of the fixing ring and guide cover at the granulation port, helps the material to be extruded and discharged smoothly, avoids particle accumulation, speeds up the production pace, and increases the output per unit time.

[0018] The precise coordination between the rotating disc and the discharge plate in the hot-cutting assembly, as well as the efficient cutting of the granulation port, ensures that the produced PVC sheath material granules are of uniform length, have a smooth surface, and regular shape, which greatly improves the appearance quality and consistency of the product.

[0019] Furthermore, the structure of the fixed ring, which is smaller at the top and larger at the bottom, compresses and guides the material, resulting in higher particle density. At the same time, the discharge plate is securely fixed to the discharge port by a retaining ring, and the rotating disk rotates smoothly within the ring groove, ensuring the stability of the equipment during operation, reducing shaking and deviation, and facilitating the continuous and stable production of high-quality products. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a three-dimensional structural diagram of the molding machine of this utility model;

[0022] Figure 2 This is a front view structural diagram of the molding machine of this utility model;

[0023] Figure 3This utility model Figure 2 Schematic diagram of the cross-sectional structure of the middle AA section;

[0024] Figure 4 This is a schematic diagram of the combined structure of the molding machine and the hot cutting component of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the hot-cutting component of this utility model;

[0026] Figure 6 This is a front view schematic diagram of the hot-cutting component assembly of this utility model;

[0027] Figure 7 This is a bottom view of the structure of the hot-cutting component of this utility model;

[0028] Figure 8 This is a three-dimensional structural diagram of the granulation port of this utility model;

[0029] Figure 9 This is a front view schematic diagram of the granulation port structure of this utility model.

[0030] In the diagram: 1. Forming machine; 2. Hot-cutting assembly;

[0031] 11. Body; 12. Discharge port;

[0032] 21. Rotary disc; 22. Granulation port; 23. Annular groove; 24. Flange; 25. Discharge plate; 26. Snap ring; 27. Positioning area;

[0033] 221. Discharge area; 222. Cutting edge; 223. Fixing ring; 224. Guide cover. Detailed Implementation

[0034] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0035] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] Please see Figure 1-9During hot cutting, issues such as cutter wear, improper cutter installation, or mismatch between the cutter speed and the material extrusion speed can all lead to irregular particle shapes. For example, worn-out cutters are less sharp and prone to tearing during cutting, resulting in uneven particle surfaces; inconsistent cutter and material extrusion speeds can cause uneven particle lengths. Therefore, this application provides a hot cutting device for PVC sheath material, including a molding machine 1 for hot melt molding and a hot cutting assembly 2 mounted on the molding machine 1.

[0037] The forming machine 1 includes a body 11, and a discharge port 12 is provided below the body 11. A hot cutting component 2 is installed at the discharge port 12 for hot cutting the material to be discharged.

[0038] The hot cutting assembly 2 includes a rotating disk 21 and a discharge plate 25 combined with the rotating disk 21. The discharge plate 25 is installed at the discharge port 12. The rotating disk 21 and the discharge plate 25 correspond one-to-one and are used to process the material to be discharged.

[0039] Both the rotating disk 21 and the discharge plate 25 have corresponding granulation ports 22, and the rotating disk 21 and the discharge plate 25 fit together.

[0040] The main body 11 is equipped with a heating and stirring system, which can accurately heat the PVC sheath material to the appropriate melting temperature to ensure the fluidity and uniformity of the material.

[0041] The discharge port 12 is located below the main body 11. Its diameter is designed according to the production scale and product specifications. The inner wall of the discharge port 12 is smoothed to reduce material adhesion and ensure smooth discharge. In order to monitor the discharge rate, a small flow sensor can be installed at the discharge port 12 to monitor the material discharge speed in real time so as to accurately control the entire production process.

[0042] The rotating disk 21 is made of an alloy material, such as aluminum alloy, which has good wear resistance and corrosion resistance. The center of the rotating disk 21 is connected to the motor through a high-strength shaft. The motor can precisely control the rotation speed of the rotating disk 21. The surface of the rotating disk 21 is finely processed to ensure its flatness and smoothness. The granulation ports 22 are evenly distributed on the circumference of the rotating disk 21. The shape of the granulation ports 22 is circular, and their diameter is designed according to the required particle size.

[0043] The discharge plate 25, also made of alloy material, is installed at the discharge port 12 and securely connected to the body 11 by bolts. The granulation ports 22 on the discharge plate 25 correspond one-to-one with those on the rotating disk 21, and are identical in size and shape. The thickness of the discharge plate 25 is moderate, ensuring both structural strength and smooth material passage through the granulation ports 22. A cooling device is also installed on the outer side of the discharge plate 25 for rapid cooling of the chopped granules.

[0044] Work process:

[0045] After the PVC sheath material is hot-melted and formed inside the molding machine body 11, the material enters the hot-cutting assembly 2 through the discharge port 12. The rotating disk 21 rotates at high speed under the drive of the motor, and the material to be discharged is extruded from the discharge plate 25 and the granulation port 22 of the rotating disk 21. Due to the high-speed rotation of the rotating disk 21, the cutter (the granulation port 22 of the rotating disk 21 forms a cutting process with the discharge plate 25 during rotation, which can be regarded as a cutter) cuts the extruded material, forming regular PVC sheath material granules. At the same time, the cooling device rapidly cools the cut granules, causing them to solidify quickly.

[0046] The granulation ports 22 corresponding to the rotary disc 21 and the discharge plate 25, as well as their fitting design, ensure the stability of the material during the extrusion and cutting process, effectively avoiding irregular particle shape caused by cutter problems. Compared with traditional hot cutting devices, it can produce particles with uniform length and flat surface, greatly improving the appearance quality of the product.

[0047] The device's structural design facilitates smoother material discharge and cutting processes, reducing downtime caused by issues such as cutter wear and improper installation. The high-speed rotation of the rotary disc 21 enables rapid material cutting, achieving continuous and efficient production to meet the needs of large-scale industrial production.

[0048] The rotary disc 21 and the discharge plate 25 are made of high-performance alloy materials, which have good wear resistance and corrosion resistance, extending the service life of the equipment. This reduces the cost and workload of frequently replacing parts such as cutters, and lowers the maintenance cost of the equipment.

[0049] A retaining ring 26 is provided on one side of the discharge plate 25, located outside the granulation port 22. The retaining ring 26 is adapted to the discharge port 12 and is used to fix the discharge plate 25.

[0050] On the other side of the discharge plate 25, there is an annular groove 23, which is adapted to the rotating disk 21, and the annular groove 23 corresponds one-to-one with the retaining ring 26.

[0051] A flange 24 is provided on the side of the rotating disk 21 near the discharge plate 25, and the flange 24 is rotatably connected to the annular groove 23 of the discharge plate 25.

[0052] A positioning area 27 is provided in the middle of the rotating disk 21, and a rotating component is provided in the positioning area 27 to control the rotating disk 21 to rotate around the annular groove 23.

[0053] When installing the discharge plate 25, the operator only needs to align the retaining ring 26 with the discharge port 12 and press it gently. The retaining ring 26 will then use its own elasticity to firmly lock into the discharge port 12, thus achieving a stable fixation of the discharge plate 25. This installation method is simple and quick, requiring no complicated tools or additional fasteners. The flange 24 on the side of the rotating disk 21 near the discharge plate 25 can be perfectly embedded into the annular groove 23, forming a tight rotational connection. The edge of the flange 24 is chamfered to prevent scratching the inner wall of the annular groove 23 during rotation.

[0054] The central positioning area 27 of the rotating disk 21 is a circular area with a smooth, flat surface, used for mounting the rotating component. The rotating component employs a high-precision motor and reducer combination, providing stable and powerful electrical energy. The rotating component is connected to the central shaft of the rotating disk 21 via a coupling, ensuring efficient power transmission. Working Process

[0055] When the PVC sheath material is extruded from the discharge port 12 of the molding machine body 1, the material can smoothly pass through the discharge plate 25 and the granulation port 22 on the rotating disk 21 because the discharge plate 25 is firmly fixed at the discharge port 12 by the retaining ring 26. The rotating component drives the rotating disk 21 to rotate around the annular groove 23, and the granulation port 22 on the rotating disk 21 rotates along the annular groove 23, cutting the extruded material to form regular PVC sheath material granules.

[0056] The matching design of the retaining ring 26 and the discharge port 12 makes the installation process of the discharge plate 25 simple and efficient, without complicated operations and tools. At the same time, the retaining ring 26 can provide reliable fixing force to ensure that the discharge plate 25 will not loosen or shift during operation, thus ensuring the stability of the equipment and the continuity of production.

[0057] The design of the annular groove 23 being rotatably connected to the flange 24 of the rotating disk 21 provides precise guidance and support for the rotating disk 21, reducing wobbling and deviation during rotation. This makes the cutting process smoother, enabling the production of PVC sheathing material granules with more regular shapes and more uniform sizes, thus improving product quality.

[0058] The granulation port 22 includes a fixing ring 223, which is set in a state where the top is smaller and the bottom is larger, and a discharge area 221 is opened in the middle.

[0059] The top of the fixing ring 223 is provided with a cutting opening 222 at a preset angle, and the cutting opening 222 is in contact with the granulation opening 22 of the discharge plate 25.

[0060] The bottom of the fixing ring 223 is provided with a guide cover 224 to assist in the discharge after hot cutting.

[0061] The fixing ring 223 has a frustum-shaped structure with a smaller top and a larger bottom. The discharge area 221 in the middle is a circular through hole, which can ensure that the PVC sheath material passes through smoothly.

[0062] The cutting edge 222 at the top of the retaining ring 223 is set at a preset angle to provide a cutting effect when the rotating disk 21 rotates to cut the material. The edge of the cutting edge 222 is ground and polished to cut the extruded PVC sheath material. The cutting edge 222 fits tightly with the granulation port 22 of the discharge plate 25 to ensure that there is no material leakage or incomplete cutting during the cutting process.

[0063] The guide cover 224 at the bottom of the fixing ring 223 is made of high-strength plastic material, possessing good flexibility and wear resistance. The guide cover 224 is trumpet-shaped, with its top tightly connected to the bottom of the fixing ring 223. The inner wall surface of the guide cover 224 is smooth, effectively reducing frictional resistance between the material and the inner wall. After heat cutting, the guide cover 224 smoothly guides the cut PVC sheath material particles to the subsequent collection device, preventing particle accumulation or scattering.

[0064] Work process

[0065] When the PVC sheath material is extruded from the discharge port 12 of the molding machine body 1 and passes through the discharge plate 25 and the granulation port 22 on the rotating disk 21, the material first enters the discharge area 221 of the fixed ring 223. Because the fixed ring 223 has a structure that is smaller at the top and larger at the bottom, it can compress and guide the material, making the material extruded more tightly. As the rotating disk 21 rotates, the cutting edge 222 quickly cuts the material, forming regular PVC sheath material granules. Under the action of gravity and the material extrusion pressure, the cut granules enter the guide cover 224, which smoothly guides the granules to the collection device, completing the entire granulation process.

[0066] The design of the retaining ring 223, which is smaller at the top and larger at the bottom, compresses and guides the PVC sheath material, making the material more compact and uniform during extrusion, thus improving the density and quality of the granules. At the same time, this structure reduces material retention at the granulation port 22, lowering the risk of material blockage and ensuring continuous production.

[0067] The cutting edge 222 is set at a preset angle and fits tightly against the granulation port 22 of the discharge plate 25, enabling efficient and precise cutting when the rotary disk 21 rotates. The sharp cutting edge 222 can easily cut the material, avoiding tearing or uneven cutting, thereby producing PVC sheath material granules with regular shape and uniform size, improving the appearance quality and consistency of the product.

[0068] The guide cover 224 provides a smooth discharge channel for the heat-cut granules. It effectively guides the granules into the collection device, preventing them from accumulating or scattering near the granulation port 22, thus reducing cleaning work and material waste. At the same time, the smooth surface of the inner wall of the guide cover 224 reduces the frictional resistance between the material and the inner wall, further improving discharge efficiency.

[0069] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A PVC sheath material hot cutting device, comprising a molding machine (1) for hot melt molding and a hot cutting assembly (2) disposed on the molding machine (1); Its features are: The molding machine (1) includes a body (11), and a discharge port (12) is provided below the body (11). A hot cutting component (2) is installed at the discharge port (12) for hot cutting the material to be discharged. The hot cutting assembly (2) includes a rotating disk (21) and a discharge plate (25) combined with the rotating disk (21). The discharge plate (25) is installed at the discharge port (12). The rotating disk (21) and the discharge plate (25) correspond one-to-one and are used to process the material to be discharged. The rotating disk (21) and the discharge plate (25) are both provided with corresponding granulation ports (22), and the rotating disk (21) and the discharge plate (25) fit together.

2. The PVC sheath material hot-cutting device according to claim 1, characterized in that: A retaining ring (26) is provided on one side of the discharge plate (25) outside the granulation port (22). The retaining ring (26) is adapted to the discharge port (12) and is used to fix the discharge plate (25).

3. The PVC sheath material hot-cutting device according to claim 1, characterized in that: The other side of the discharge plate (25) is provided with an annular groove (23), which is adapted to the rotating disk (21), and the annular groove (23) corresponds one-to-one with the retaining ring (26).

4. The PVC sheath material hot-cutting device according to claim 1, characterized in that: The rotating disk (21) has a flange (24) on the side near the discharge plate (25), and the flange (24) is rotatably connected to the annular groove (23) of the discharge plate (25).

5. The PVC sheath material hot-cutting device according to claim 1, characterized in that: The rotating disk (21) has a positioning area (27) in the middle, and a rotating component is provided in the positioning area (27) to control the rotating disk (21) to rotate around the annular groove (23).

6. The PVC sheath material hot-cutting device according to claim 1, characterized in that: The granulation port (22) includes a fixing ring (223), which is set in a state where the top is smaller and the bottom is larger, and a discharge area (221) is opened in the middle.

7. A PVC sheath material hot-cutting device according to claim 6, characterized in that: The top of the fixing ring (223) is provided with a cutting opening (222) at a preset angle, and the cutting opening (222) is in contact with the granulation port (22) of the discharge plate (25).

8. A PVC sheath material hot-cutting device according to claim 6, characterized in that: The bottom of the fixing ring (223) is provided with a guide cover (224) to assist in the discharge of material after hot cutting.

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