PVC sleeve production line pre-cooling support

Abstract

The utility model relates to the technical field of casing production precooling, disclose a kind of PVC casing production line precooling support, including support frame body and protective shell, the upper end of mounting bracket is uniformly fixedly installed with air jet pipe, condenser pipe is installed on the mounting bracket by buckle, one end of the mounting bracket is fixed with extension pipe, another end of the extension pipe is fixedly installed with elbow pipe, the utility model is equipped with condenser pipe, air jet pipe, elbow pipe and nozzle etc. component, circulating pump on main return pipe will drive cold water to continue circulating in condenser pipe, after absorbing heat, warm water is returned to cooling water tank cooling by main return pipe, multiple oblique air holes on air jet pipe blow cold air to casing, both can directly to the casing after precooling further cooling, and let cold air sweep the surface of lower condenser pipe, finally the remaining cold air of air jet pipe will be obliquely blown out by nozzle, can assist to realize casing surface drying, effectively improve the overall efficiency of PVC casing production precooling after production.

Description

Technical Field

[0001] This utility model relates to the field of precooling technology in PVC sleeve production, and in particular to a precooling support for a PVC sleeve production line. Background Technology

[0002] PVC tubing refers to heat-shrinkable insulating tubing made primarily of polyvinyl chloride (PVC). It is suitable for insulation protection of electrical equipment and for gas and liquid flow pipes. PVC tubing employs a double-layer PVC heat-shrinkable polymer structure, with a thicker outer sheath to enhance resistance to external forces. It possesses acid and alkali resistance, dust and corrosion resistance, and high insulation properties. Because PVC material undergoes thermal degradation during high-temperature extrusion, pre-cooling treatment can promptly reduce the temperature and prevent further decomposition. An existing pre-cooling support for a PVC sleeve production line (publication number: CN222921038U) can cool the discharged PVC sleeves immediately. At the same time, it uses the structure's own driving force to provide stable structural support for the PVC sleeves and assist in their transportation to downstream equipment. However, it requires the incompletely cured sleeve surface to be in direct contact with cooling water, which can easily form scratches and watermarks on the sleeve surface, thus affecting the sleeve production quality. Furthermore, the splashing of cooling water can cause excessive moisture residue in the sleeves, which, if not treated in time, will further increase the probability of sleeve quality problems. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a pre-cooling support for a PVC sleeve production line.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A precooling support for a PVC sleeve production line includes a support frame and a protective shell. Multiple sets of conveyor rollers are movably mounted on the support frame. A cold water tank is located below each conveyor roller. An installation bracket is fastened to the middle section inside the protective shell. Air spray pipes are fixedly mounted on the upper ends of each installation bracket. A condenser pipe is fastened to each installation bracket via clips. An extension pipe is fixed to one end of each installation bracket, and a bend is fixedly mounted to the other end of the extension pipe. A fan device is fastened to the outer wall of the protective shell.

[0005] As a further embodiment of this utility model, a main return pipe is fixed to one side of the outer wall of the cold water tank, and a branch pipe is fixed between the main return pipe and one end of the condenser tube.

[0006] As a further embodiment of this utility model, a circulation pump is fixedly installed on the main return pipe, and a water inlet pipe is fixed on the side of the cold water tank away from the main return pipe.

[0007] As a further embodiment of this utility model, a second diversion pipe is fixed between the main water inlet pipe and the other end of the condenser pipe, and a nozzle is installed on the bend pipe by means of threads.

[0008] As a further embodiment of this invention, the nozzles are symmetrically distributed on the curved pipe.

[0009] As a further embodiment of this utility model, the mounting bracket and the bent pipe are symmetrically distributed within the protective shell, and the fan device is connected to the air jet pipe through the air inlet pipe.

[0010] Compared with the prior art, the present invention has the following beneficial effects: By incorporating components such as condenser pipes, air spray pipes, bends, and nozzles, after the PVC sleeve is manufactured, a circulating pump on the main return pipe drives cold water to continuously circulate within the condenser pipe. The warm water, after absorbing heat, returns to the cold water tank through the main return pipe for cooling, thus achieving water recycling. Simultaneously, multiple angled air holes on the air spray pipe blow cold air onto the sleeve, which not only directly further cools the pre-cooled sleeve to a suitable range but also allows the cold air to pass over the surface of the condenser pipe below, accelerating heat dissipation and preventing the water temperature inside the condenser pipe from rising due to continuous heat absorption, ensuring the water-cooling pre-cooling effect. Finally, the remaining cold air from the air spray pipe is blown out at an angle through the nozzles onto the sleeve that is about to be conveyed out of the protective shell, which helps to dry the surface of the sleeve and ensures that there is no moisture residue on the surface of the PVC sleeve before it enters the downstream processing stage, effectively improving the overall efficiency of pre-cooling after PVC sleeve production. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of a pre-cooling support for a PVC sleeve production line proposed in this utility model; Figure 2 This is a cross-sectional structural diagram of a pre-cooling support for a PVC sleeve production line proposed in this utility model. Figure 3 for Figure 1 Enlarged diagram of point A in the diagram; Figure 4 This is a schematic diagram of the disassembled structure of the mounting bracket and cold water tank of the precooling bracket for a PVC sleeve production line proposed in this utility model. In the diagram: 1. Support frame; 101. Conveyor roller; 2. Protective shell; 3. Mounting bracket; 301. Condenser pipe; 302. Air spray pipe; 303. Extension pipe; 4. Cold water tank; 401. Main return pipe; 402. Main water inlet pipe; 403. Circulation pump; 404. Diverter pipe one; 405. Diverter pipe two; 5. Fan device; 501. Air inlet pipe; 6. Bend; 601. Nozzle. Detailed Implementation

[0012] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0013] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] Reference Figures 1-4 A precooling support for a PVC sleeve production line includes a support frame 1 and a protective shell 2. Multiple sets of conveyor rollers 101 are movably mounted on the support frame 1. A cold water tank 4 is provided below the conveyor rollers 101. An installation bracket 3 is installed in the middle section of the interior of the protective shell 2 by fasteners. An air spray pipe 302 is fixedly installed on the upper end of each installation bracket 3. A condenser pipe 301 is installed on the installation bracket 3 by clips. An extension pipe 303 is fixed to one end of the installation bracket 3. A bend pipe 6 is fixedly installed to the other end of the extension pipe 303. A fan device 5 is installed on the outer wall of the protective shell 2 by fasteners.

[0016] The fan device 5 is started, and cold air is delivered to the spray pipe 302 through the air inlet pipe 501. At the same time, the conveyor roller 101 is started, so that the molded PVC sleeve enters the protective shell 2 under the drive of multiple sets of conveyor rollers 101. The sleeve first passes through the condenser pipe 301 area, and the circulating cold water pre-cools the sleeve non-contactly through the condenser pipe 301. Then, multiple oblique air holes on the spray pipe 302 blow out cold air to further reduce the temperature of the sleeve and dissipate heat for the condenser pipe 301 to prevent the water temperature inside the pipe from rising. When the sleeve is transported to the outlet of the protective shell 2, the remaining cold air in the spray pipe 302 is guided to the nozzle 601 through the bend pipe 6, and then blown obliquely towards the sleeve by the nozzle 601 to remove the residual condensate on its surface, ensuring that there is no moisture residue on the surface of the PVC sleeve before it enters the downstream processing process.

[0017] In this embodiment, a main return pipe 401 is fixed to one side of the outer wall of the cold water tank 4, and a branch pipe 404 is fixed between the main return pipe 401 and one end of the condenser pipe 301.

[0018] Excess cold air in the blower pipe 302 is delivered to the nozzle 601 on the bend pipe 6, which can blow air again on the sleeve that is about to be delivered out of the protective shell 2, accurately remove the trace amount of condensate water remaining on its surface, and thus help to dry the sleeve.

[0019] In this embodiment, a circulation pump 403 is fixedly installed on the main return pipe 401, and a water inlet pipe 402 is fixed on the side of the cold water tank 4 away from the main return pipe 401.

[0020] The air duct 302 has multiple angled air holes, which blow cold air onto the surface of the sleeve. This not only directly cools the pre-cooled sleeve, but also allows the cold air to pass over the surface of the condenser 301 below, thereby accelerating the heat dissipation of the condenser 301.

[0021] In this embodiment, a diversion pipe 405 is fixed between the other end of the main water inlet pipe 402 and the condenser pipe 301, and a nozzle 601 is installed on the bend pipe 6 by means of threads.

[0022] Utilizing the heat absorption property of cold water, the condenser tube 301 precools the PVC sleeve in a non-contact manner, while the cold air blown out by the air jet tube 302 assists in heat dissipation, ensuring a continuous and stable precooling effect.

[0023] In this embodiment, the nozzles 601 are symmetrically distributed on the bend 6.

[0024] Multiple conveyor rollers 101 are driven by electricity to rotate and stably drive the formed PVC sleeve into the protective shell 2.

[0025] In this embodiment, the mounting bracket 3 and the bend 6 are symmetrically distributed inside the protective shell 2, and the fan device 5 is connected to the air spray pipe 302 through the air inlet pipe 501.

[0026] The fan unit 5 mainly consists of a motor that provides power, fan blades that generate airflow, an air inlet pipe 501 that guides the delivery of cold air, and matching fixed components.

[0027] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: During the PVC sleeve production process, the circulation pump 403 is turned on, so that cold water enters the condenser pipes 301 on both sides after passing through the water inlet pipe 402, forming a cold water circulation. Then, the fan device 5 is started, and cold air is delivered to the air spray pipe 302 through the air inlet pipe 501. At the same time, the conveying roller 101 is started, so that the formed PVC sleeve enters the protective shell 2 under the drive of multiple sets of conveying rollers 101. The sleeve first passes through the condenser pipe 301. In area 1, circulating cold water pre-cools the sleeve non-contactly through the condenser pipe 301. Then, multiple oblique air holes on the air spray pipe 302 blow out cold air to further reduce the sleeve temperature and dissipate heat for the condenser pipe 301, preventing the water temperature inside the pipe from rising. When the sleeve is transported to the outlet of the protective shell 2, the remaining cold air from the air spray pipe 302 is guided to the nozzle 601 through the bend pipe 6, and then blown obliquely onto the sleeve by the nozzle 601 to remove residual condensate on its surface. Finally, the dried PVC sleeve is transported out by the conveyor roller 101 for collection.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pre-cooling support for a PVC sleeve production line, comprising a support frame (1) and a protective shell (2), characterized in that: Multiple sets of conveying rollers (101) are movably installed on the support frame (1). A cold water tank (4) is provided below the conveying rollers (101). An installation bracket (3) is installed in the middle section of the protective shell (2) by fasteners. An air spray pipe (302) is fixedly installed on the upper end of the installation bracket (3). A condenser pipe (301) is installed on the installation bracket (3) by a snap fastener. An extension pipe (303) is fixed at one end of the installation bracket (3). A bend pipe (6) is fixed at the other end of the extension pipe (303). A fan device (5) is installed on the outer wall of the protective shell (2) by fasteners.

2. The precooling support for a PVC sleeve production line according to claim 1, characterized in that, A main return pipe (401) is fixed on one side of the outer wall of the cold water tank (4), and a branch pipe (404) is fixed between the main return pipe (401) and one end of the condenser pipe (301).

3. The pre-cooling support for a PVC sleeve production line according to claim 2, characterized in that, A circulation pump (403) is fixedly installed on the main return pipe (401), and a water inlet pipe (402) is fixed on the side of the cold water tank (4) away from the main return pipe (401).

4. A pre-cooling support for a PVC sleeve production line according to claim 3, characterized in that, A diversion pipe (405) is fixed between the other end of the main water inlet pipe (402) and the condenser pipe (301), and a nozzle (601) is installed on the bend pipe (6) by means of threads.

5. A pre-cooling support for a PVC sleeve production line according to claim 4, characterized in that, The nozzles (601) are symmetrically distributed on the bend (6).

6. A pre-cooling support for a PVC sleeve production line according to claim 1, characterized in that, The mounting bracket (3) and the bend (6) are symmetrically distributed inside the protective shell (2), and the fan device (5) is connected to the air spray pipe (302) through the air inlet pipe (501).

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