Quick cooling device for PVC (polyvinyl chloride) plastic particles

Abstract

The utility model provides a quick cooling device for PVC (polyvinyl chloride) plastic particles, which comprises a support frame, an extruder, an extrusion transmission cylinder, a feed port, an extrusion head, a quick cooling tank and a cooling water system, the support frame is fixedly mounted on the ground, the extruder is fixedly mounted on the support frame, and the extrusion transmission cylinder is fixedly mounted at the rear end of the extruder; the feeding hole is fixedly formed in the rear end of the extrusion transmission cylinder and is fixedly formed in the side wall of the rapid cooling tank; the rapid cooling tank is fixedly mounted on the ground, and the cooling water system is fixedly mounted at the front end of the rapid cooling tank; due to the arrangement of the extrusion transmission cylinder and the rapid cooling tank, the plastic particles can be always kept in a molten state before entering the cooling device, the low-temperature state of cooling water can be always kept, and the plastic particles can be rapidly cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC plastic particle production, in particular to a PVC plastic particle rapid cooling device. Background Art

[0002] PVC extrusion production technology is widely used in the construction industry, such as the manufacture of PVC pipes, window frames, door and window profiles, etc.; in the medical industry, such as the manufacture of medical pipes, infusion devices, etc.; in the power industry, such as the manufacture of cable sheaths, insulation materials, etc.; in the packaging industry, such as the manufacture of plastic bags, bottles, etc. The reason why it is widely used in various fields is that PVC has the advantages of good corrosion resistance, weather resistance, good mechanical properties, etc., and the extrusion production process is low-cost and high-efficiency.

[0003] PVC (polyvinyl chloride) is a common plastic material, widely used in the fields of construction, medical treatment, electricity, packaging, etc. PVC products are usually produced through an extrusion process, which includes the preparation of particles, extrusion molding, cooling and solidification. Since the existing PVC plastic particle rapid cooling device does not have local heating equipment, it is easy for the PVC to cool down and solidify in the pipeline when it is transported to the cooling structure. Such high-load work will cause damage to the equipment; since the existing PVC plastic particle rapid cooling device does not have a circulating cooling pool, when the cooling water temperature in the cooling pool increases, the cooling effect on the plastic particles will be reduced, and the cooled plastic particles cannot be quickly produced.

[0004] Therefore, it is very necessary to invent a kind of PVC plastic granules rapid cooling device. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a PVC plastic granule rapid cooling device to solve the problems that the existing PVC plastic granule rapid cooling device still has the problem that the granules cannot always be kept in a melted state before entering the cooling device, the cooling water cannot always be kept in a low temperature state, and the plastic granules cannot be quickly cooled. A PVC plastic granule rapid cooling device includes a support frame, an extruder, an extrusion transmission cylinder, a feed inlet, an extrusion head, a rapid cooling trough and a cooling water system, wherein: the support frame is fixedly mounted on the ground, and the extruder is fixedly mounted on the support frame, and the extrusion transmission cylinder is fixedly mounted on one end of the extruder; the feed inlet is fixedly mounted on one end of the extrusion transmission cylinder close to the extruder, and the extrusion head is fixedly mounted on one end of the extrusion transmission cylinder away from the extruder, and is fixedly mounted in the side wall of the rapid cooling trough; the rapid cooling trough is fixedly mounted on the ground, and the cooling water system is fixedly mounted on one end of the rapid cooling trough close to the extrusion transmission cylinder.

[0006] The rapid cooling tank includes a cooling space, a driving motor, a pelletizing rack, a circulating water outlet and a collecting net, and the cooling space is fixedly installed on the ground, and the driving motor is fixedly installed on one side of the cooling space; the pelletizing rack is rotatably installed inside the cooling space through an axis, and is connected to the output end of the driving motor through a coupling, and the circulating water outlet is opened at the bottom of one end of the cooling space away from the cooling water system; the collecting net is slidably installed inside the cooling space.

[0007] The cooling water system includes a central pipe, a stopper block, a water outlet pipe and a connecting water pipe, and the water outlet pipe is fixedly installed at one end of the rapid cooling tank close to the central pipe, and the central pipe is fixedly installed at one end of the water outlet pipe located outside the cooling tank; the stopper block is fixedly installed at one end of the central pipe, and the connecting water pipe is fixedly installed at the other end of the central pipe.

[0008] The extrusion drive cylinder adopts a stainless steel metal cylinder, and a spiral conveying blade is rotatably installed inside the cylinder. The spiral conveying blade inside the extrusion drive cylinder is connected to the output shaft of the extruder; the extrusion drive cylinder is vertically installed with a feed port at one end close to the extruder, and the tail end of the extrusion drive cylinder is connected to the extrusion head, and the outer surface of the extrusion drive cylinder is evenly distributed with a number of heating nodes; the heating node outside the extrusion drive cylinder is provided with a dry-burning type heating wire inside, which has the following functions: ① conveying plastic particles: a spiral conveying blade is installed inside the extrusion drive cylinder. When the extruder is started, the spiral conveying blade will rotate to convey the raw plastic particles from the feed port of the extruder to the extrusion head; ② continuously heating the raw materials: the outer surface of the extrusion drive cylinder is evenly distributed with heating nodes, and the plastic particles are heated by the heating nodes to reach a temperature suitable for extrusion molding, so as to prevent the plastic particles from solidifying due to the temperature drop during the movement. Slight solidification will lead to increased compounding of the extruder and increase the pressure on the spiral conveying blade inside the extrusion drive cylinder.

[0009] The rapid cooling tank is a rectangular tank as a whole, and the pelletizing frame is rotated by a driving motor, and the arc track generated by the rotation of the pelletizing frame matches the arc depression at the top of the extruder head; the circulating water outlet is a rectangular opening, and a circulating water pool is arranged on its side; the collecting net adopts an "L"-shaped collecting filter, one surface of which is perpendicular to the bottom surface of the cooling space, and the other surface is parallel to the bottom surface of the cooling space and contacts the bottom surface of the cooling space, which has the following functions: ① Cooling and curing: the plastic products extruded by the extruder usually need to be quickly cooled and cured after being formed to ensure that they maintain the required shape and size. The rapid cooling tank provides a rapid cooling environment to help the plastic products reach the required degree of hardening in a short time; ② Continuous cooling and curing: the rapid cooling tank is filled with cooling water, and the cooling water inside the rapid cooling tank will be discharged outward from the circulating water outlet, and the missing water will be supplemented inward through the cooling water system to form a cooling water circulation process, so that the water inside the rapid cooling tank can always be in a low temperature state, and the temperature of the cooling water will not rise due to the entry of high-temperature plastic particles, so as to quickly cool and cure the plastic particles.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The setting of the extrusion transmission cylinder of the utility model has the following functions: 1. Conveying plastic particles: spiral conveying blades are installed inside the extrusion transmission cylinder. When the extruder is started, the spiral conveying blades will rotate to convey the raw plastic particles from the feed port of the extruder to the extrusion head; 2. Continuously heating the raw materials: heating nodes are evenly distributed on the outer surface of the extrusion transmission cylinder. The plastic particles are heated by the heating nodes to reach a temperature suitable for extrusion molding, thereby preventing the plastic particles from solidifying due to temperature reduction during movement. Slight solidification will lead to increased compounding of the extruder and increase the pressure on the spiral conveying blades inside the extrusion transmission cylinder.

[0012] 2. The setting of the rapid cooling tank of the utility model has the following functions: ① cooling and solidification: the plastic products extruded by the extruder usually need to be quickly cooled and solidified after being formed to ensure that they maintain the required shape and size. The rapid cooling tank provides a rapid cooling environment to help the plastic products reach the required degree of hardening in a short time; ② continuous cooling and solidification: the rapid cooling tank is filled with cooling water, and the cooling water inside the rapid cooling tank will be discharged outward from the circulating water outlet, and the missing water will be supplemented inward through the cooling water system to form a cooling water circulation process. In this way, the water inside the rapid cooling tank can always be in a low temperature state, and the temperature of the cooling water will not rise due to the entry of high-temperature plastic particles, so as to quickly cool down and solidify the plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the rapid cooling tank of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the cooling water system of the utility model.

[0016] In the figure:

[0017] Support frame 1, extruder 2, extrusion transmission cylinder 3, feed port 4, extrusion head 5, rapid cooling tank 6, cooling space 61, drive motor 62, pelletizing frame 63, circulating water outlet 64, collecting net 65, cooling water system 7, centralizing pipe 71, cut-off sealing block 72, water outlet pipe 73, connecting water pipe 74. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0019] As attached Figure 1 To Attachment Figure 3 shown.

[0020] A PVC plastic particle rapid cooling device, characterized in that it includes a support frame 1, an extruder 2, an extrusion transmission cylinder 3, a feed port 4, an extrusion head 5, a rapid cooling trough 6 and a cooling water system 7, wherein: the support frame 1 is fixedly mounted on the ground, and the extruder 2 is fixedly mounted on the support frame 1, and the extrusion transmission cylinder 3 is fixedly mounted on one end of the extruder 2; the feed port 4 is fixedly mounted on the end of the extrusion transmission cylinder 3 close to the extruder 2, and the extrusion head 5 is fixedly mounted on the end of the extrusion transmission cylinder 3 away from the extruder 2, and is fixedly mounted in the side wall of the rapid cooling trough 6; the rapid cooling trough 6 is fixedly mounted on the ground, and the cooling water system 7 is fixedly mounted on the end of the rapid cooling trough 6 close to the extrusion transmission cylinder 3.

[0021] The rapid cooling tank 6 includes a cooling space 61, a driving motor 62, a pelletizing rack 63, a circulating water outlet 64 and a collecting net 65, and the cooling space 61 is fixedly installed on the ground, and the driving motor 62 is fixedly installed on one side of the cooling space 61; the pelletizing rack 63 is rotatably installed inside the cooling space 61 through an axis, and is connected to the output end of the driving motor 62 through a coupling, and the circulating water outlet 64 is opened at the bottom of one end of the cooling space 61 away from the cooling water system 7; the collecting net 65 is slidably installed inside the cooling space 61.

[0022] The cooling water system 7 includes a central pipe 71, a stopper block 72, a water outlet pipe 73 and a connecting water pipe 74, and the water outlet pipe 73 is fixedly installed at one end of the rapid cooling tank 6 close to the central pipe 71, and the central pipe 71 is fixedly installed at one end of the water outlet pipe 73 located outside the cooling tank 6; the stopper block 72 is fixedly installed at one end of the central pipe 71, and the connecting water pipe 74 is fixedly installed at the other end of the central pipe 71.

[0023] The extrusion transmission cylinder 3 is a stainless steel metal cylinder with a spiral conveying blade rotatably installed inside. The spiral conveying blade inside the extrusion transmission cylinder 3 is connected to the output shaft of the extruder 2; a feed port 4 is vertically installed at one end of the extrusion transmission cylinder 3 close to the extruder 2, and the tail end of the extrusion transmission cylinder 3 is connected to the extrusion head 5. A plurality of heating nodes are evenly distributed on the outer surface of the extrusion transmission cylinder 3; a dry-burning type heating wire is arranged inside the heating node on the outer side of the extrusion transmission cylinder 3.

[0024] The rapid cooling tank 6 is a rectangular tank as a whole, and the pelletizer rack 63 is rotated by the driving motor 62. The arc trajectory generated by the rotation of the pelletizer rack 63 matches the arc depression at the top of the extruder head 5; the circulating water outlet 64 is a rectangular opening, and a circulating water pool is arranged on its side; the collecting net 65 adopts an "L"-shaped collecting filter, one surface of which is perpendicular to the bottom surface of the cooling space 61, and the other surface is parallel to the bottom surface of the cooling space 61 and contacts the bottom surface of the cooling space 61.

[0025] Rapid cooling plays a vital role in the production of plastic products. Its correct implementation can effectively improve production efficiency and ensure product quality. The following is a specific implementation based on advanced technology and best practices:

[0026] 1. Equipment Overview

[0027] The PVC plastic granule rapid cooling device is designed to solve the problem of granule overheating during the PVC plastic extrusion process to ensure product quality and production efficiency. The device includes a support frame 1, an extruder 2, an extrusion transmission cylinder 3, a feed inlet 4, an extrusion head 5, a rapid cooling tank 6 and a cooling water system 7.

[0028] 2. Rapid cooling tank structure

[0029] The rapid cooling tank 6 adopts a rectangular structure, and its interior is divided into a cooling space 61 , a pelletizing rack 63 , a circulating water outlet 64 and a collecting net 65 .

[0030] Cooling space 61: located in the center of the rapid cooling tank, used to accommodate PVC plastic particles and perform rapid cooling.

[0031] The pelletizing rack 63 is installed inside the cooling space and rotated by the driving motor 62. The arc trajectory generated by the rotation matches the arc depression at the top of the extrusion head 5, which is conducive to uniform cutting of the pellets.

[0032] Circulating water outlet 64: located at the bottom of the cooling tank, it is an outlet for circulating cooling water, maintaining the circulating flow of cooling water to ensure a rapid cooling effect.

[0033] Collection net 65: installed at the bottom of the cooling space, using an "L"-shaped collection filter, one surface of which is perpendicular to the bottom surface of the cooling space, and the other surface is parallel to the bottom surface and contacts the bottom surface, for collecting cooled PVC particles.

[0034] 3. Cooling water system

[0035] The cooling water system 7 mainly includes a central pipe 71 , a cut-off blocking block 72 , a water outlet pipe 73 and a connecting water pipe 74 .

[0036] Concentrating pipe 71 : fixedly installed at the front end of the rapid cooling tank 6 , used to guide cooling water to the rapid cooling tank 6 .

[0037] The water outlet pipe 73 is fixedly installed at the front end of the rapid cooling tank 6 and is used to input low-temperature cooling water to achieve a circulation effect.

[0038] The connecting water pipe 74 is fixedly installed at the other end of the central pipe 71 and connected to a water source to ensure a continuous supply of cooling water.

[0039] 4. Extrusion drive cylinder

[0040] The extrusion drive cylinder 3 is a stainless steel metal cylinder with spiral conveying blades installed inside, which is connected to the output shaft of the extruder 2. The front end of the extrusion drive cylinder is vertically equipped with a feed port 4 for conveying plastic particles to the extruder, and the rear end is connected to the extrusion head 5. Several heating nodes are evenly distributed on the surface of the extrusion drive cylinder 3, and dry-burning type heating wires are arranged inside these nodes to ensure that the plastic particles maintain a suitable temperature during the extrusion process.

[0041] 5. Operation process

[0042] The melted PVC plastic is added into the extrusion transmission cylinder 3 through the feed port 4 .

[0043] The spiral conveying blades in the extrusion drive cylinder convey the particles to the extruder 2.

[0044] The extruder extrudes the PVC plastic particles by heating and extruding, and forms a product of a desired shape through the extrusion head 5 .

[0045] After passing through the extruder, the product enters the rapid cooling tank 6 for rapid cooling, and the cooling water is circulated and supplied by the cooling water system 7.

[0046] The cooled product is collected by the collecting net 65, and the cooling water is circulated and then supplied to the rapid cooling tank again for recycling.

[0047] After completing one cycle, the output high-temperature cooling water must be cooled so that it can be used for the next cooling work.

[0048] 6. Working Principle

[0049] Raw material supply: The extruder (2) serves as a driving structure for the raw materials, feeding the PVC plastic particles into the extrusion drive cylinder (3).

[0050] Extrusion drive cylinder: The extrusion drive cylinder (3) is internally provided with spiral conveying blades, which are connected to the output shaft of the extruder (2). When the extruder (2) is started, the spiral conveying blades begin to rotate, conveying the PVC plastic particles from the extruder (2) to the extrusion head (5).

[0051] Rapid cooling: The PVC plastic particles enter the rapid cooling tank (6) through the extruder head (5). The cooling space (61) of the rapid cooling tank (6) is reasonably designed to ensure that the PVC plastic particles can be cooled quickly. At the same time, the cooling water in the cooling water system (7) is transported to the rapid cooling tank (6) to quickly cool the PVC plastic particles.

[0052] Pellet cutting process: the drive motor (62) is started to drive the pelletizer frame (63) to rotate, and the movement trajectory of the pelletizer frame (63) matches the shape of the extruder head (5), ensuring that the PVC plastic particles can be accurately cut into the required particle size.

[0053] Collection and packaging: The cooled PVC plastic particles are collected by a collection net (65) and can then be packaged and stored, or directly enter the next production stage.

[0054] Heating node control: Several heating nodes are evenly distributed on the outer surface of the extrusion drive cylinder (3), and a dry-burning type heating wire is arranged inside. These heating nodes can be controlled as needed to keep the PVC plastic particles within a temperature range suitable for processing, thereby ensuring the stability of the production process and the quality of the product.

[0055] 7. Conclusion

[0056] The PVC plastic granule rapid cooling device effectively solves the problem of granule overheating during PVC plastic extrusion through reasonable structural design and operation process, improves product quality and production efficiency, and has high practical value and market application prospects.

[0057] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A PVC plastic particle rapid cooling device, characterized in that: The invention comprises a support frame (1), an extruder (2), an extrusion transmission cylinder (3), a feed inlet (4), an extrusion head (5), a rapid cooling trough (6) and a cooling water system (7), wherein: the support frame (1) is fixedly mounted on the ground, and the extruder (2) is fixedly mounted on the support frame (1), and the extrusion transmission cylinder (3) is fixedly mounted on one end of the extruder (2); the feed inlet (4) is fixedly mounted on one end of the extrusion transmission cylinder (3) close to the extruder (2), and the extrusion head (5) is fixedly mounted on one end of the extrusion transmission cylinder (3) away from the extruder (2), and is fixedly mounted in the side wall of the rapid cooling trough (6); the rapid cooling trough (6) is fixedly mounted on the ground, and the cooling water system (7) is fixedly mounted on one end of the rapid cooling trough (6) close to the extrusion transmission cylinder (3).

2. A PVC plastic particle rapid cooling device as claimed in claim 1, characterized in that: The rapid cooling tank (6) comprises a cooling space (61), a drive motor (62), a pelletizing rack (63), a circulating water outlet (64) and a collecting net (65), wherein the cooling space (61) is fixedly mounted on the ground, and the drive motor (62) is fixedly mounted on one side of the cooling space (61); the pelletizing rack (63) is rotatably mounted inside the cooling space (61) via an axis, and is connected to the output end of the drive motor (62) via a coupling; the circulating water outlet (64) is provided at the bottom of one end of the cooling space (61) away from the cooling water system (7); and the collecting net (65) is slidably mounted inside the cooling space (61).

3. A PVC plastic particle rapid cooling device as claimed in claim 1, characterized in that: The cooling water system (7) comprises a centralizing pipe (71), a stopper block (72), a water outlet pipe (73) and a connecting water pipe (74), wherein the water outlet pipe (73) is fixedly mounted on one end of the rapid cooling tank (6) close to the centralizing pipe (71), and the centralizing pipe (71) is fixedly mounted on one end of the water outlet pipe (73) located outside the cooling tank (6); the stopper block (72) is fixedly mounted on one end of the centralizing pipe (71), and the connecting water pipe (74) is fixedly mounted on the other end of the centralizing pipe (71).

4. A PVC plastic particle rapid cooling device as claimed in claim 2, characterized in that: The extrusion transmission cylinder (3) is a stainless steel metal cylinder, and a spiral transmission blade is rotatably installed inside the extrusion transmission cylinder (3). The spiral transmission blade inside the extrusion transmission cylinder (3) is connected to the output shaft of the extruder (2); an inlet (4) is vertically installed at one end of the extrusion transmission cylinder (3) close to the extruder (2), and the tail end of the extrusion transmission cylinder (3) is connected to the extrusion head (5). The outer surface of the extrusion transmission cylinder (3) is evenly distributed with a plurality of heating nodes; and a dry-burning type heating wire is arranged inside the heating node on the outer side of the extrusion transmission cylinder (3).

5. A PVC plastic particle rapid cooling device as claimed in claim 2, characterized in that: The rapid cooling trough (6) is a rectangular trough as a whole, and the pelletizer rack (63) is rotated by a driving motor (62), and the arc-shaped trajectory generated by the rotation of the pelletizer rack (63) matches the arc-shaped depression at the top of the extruder head (5); the circulating water outlet (64) is a rectangular opening, and a circulating water pool is arranged on its edge; the collecting net (65) adopts an "L"-shaped collecting filter, one surface of which is perpendicular to the bottom surface of the cooling space (61), and the other surface is parallel to the bottom surface of the cooling space (61) and contacts the bottom surface of the cooling space (61).

Images