A novel constant temperature cooling device for FFS film

Abstract

The utility model relates to the technical field of plastic film processing, concretely to a novel FFS film constant temperature cooling device, including cooling air ring, air induction subassembly, air supply subassembly and temperature control assembly, the cooling air ring is the annular structure of vertical installation, the cooling air ring is equipped in the FFS film bubble outside, the inside of cooling air ring is provided with the ventilation cavity, the outside wall of cooling air ring is opened two groups and is provided with the air inlet hole of ventilation cavity intercommunication setting symmetry, and every group air inlet hole is five;Beneficial effects: air is sent into the air supply pipe through the fan, and temperature is adjusted through heater and refrigerator in turn, reaches the setting temperature and is sent into the cooling air ring through the air supply pipe and air induction subassembly, cooperates through the air inlet hole, ventilation cavity and air outlet hole, forms the uniform cooling air curtain, carries out all -round uniform cooling to the FFS film bubble of vertical downlink, keeps the air supply temperature constant through temperature sensor real -time detection air supply temperature, adjusts the working condition of heater or refrigerator through control system, keeps the air supply temperature constant.

Description

Technical Field

[0001] This utility model relates to the field of plastic film processing technology, specifically a novel FFS film constant temperature cooling device. Background Technology

[0002] FFS film (Form-Fill-Seal film) is a multi-layer co-extruded film used for heavy-duty packaging. It belongs to the field of polymer packaging materials and can complete the forming, filling and sealing processes in one go. It is mainly used for automated packaging of solid products in the chemical, food and other fields. Its core function is to continuously complete film forming, material filling and sealing through an automated system. It is suitable for packaging needs that can carry 10-50kg of solid granules or powders.

[0003] In the production of FFS film, the high-temperature film bubble exiting the extruder die needs to be rapidly cooled and shaped. Existing cooling devices mostly use ordinary air rings for direct air blowing, which has problems such as uneven cooling and uncontrollable temperature, resulting in uneven film thickness, poor surface quality, and affecting product performance. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model discloses a novel FFS membrane constant temperature cooling device. The technical solution adopted includes a cooling air ring, an air intake component, an air supply component, and a temperature control component. The cooling air ring is a vertically installed ring structure. The cooling air ring is sleeved on the outside of the FFS membrane bubble. A ventilation cavity is opened inside the cooling air ring. Two sets of air inlets communicating with the ventilation cavity are symmetrically opened on the outer side wall of the cooling air ring. Each set of air inlets has five air inlets. Air outlets communicating with the ventilation cavity are evenly opened on the inner side wall of the cooling air ring. The diameter of the air outlets is 1-2 mm and the spacing between the outlets is 10-20 mm. Three support seats for clamping and fixing the cooling air ring are evenly arranged at the lower end of the cooling air ring. An installation platform is fixed to the outer side wall of one of the support seats.

[0005] The air intake assembly includes six ventilation ducts and arc-shaped ducts. There are two sets of six ventilation ducts, which are symmetrically arranged at both ends of the cooling air ring. The air outlet of the six ventilation ducts is connected to the air inlet. The two ends of the arc-shaped ducts are respectively connected to the air inlet of the six ventilation ducts.

[0006] The air supply assembly includes a fan and an air supply duct. The fan is installed on the surface of the installation platform. The outlet of the air supply duct is connected to the air inlet of the arc-shaped air duct, and the inlet of the air supply duct is connected to the outlet of the fan.

[0007] The temperature control component includes a cooler, a heater, and a temperature controller. The temperature sensor is located at the outlet of the air supply duct, and the heater and cooler are connected in series in the air supply duct.

[0008] As a preferred embodiment of this utility model, the center line of the cooling air ring coincides with the center line of the membrane bubble, and the inner wall of the cooling air ring maintains a distance of 50-100mm from the outer surface of the membrane bubble.

[0009] In a preferred embodiment of this invention, the heater and cooler are installed in the middle section of the air supply duct, and the temperature sensor is installed at the end of the air supply duct near the air inlet of the arc-shaped duct.

[0010] As a preferred technical solution of this utility model, the air outlet direction is at a 30° angle to the tangent of the inner wall of the cooling air ring, forming a swirling effect.

[0011] As a preferred embodiment of this utility model, the air supply duct is a flexible duct, and the lower surface of the support base is uniformly provided with support feet.

[0012] The beneficial effects of this utility model are as follows: Air is sent into the air supply pipe by a fan, and the temperature is regulated by a heater and a cooler. After reaching the set temperature, the air is sent into the cooling air ring through the air supply pipe and the air intake assembly. The air inlet, ventilation cavity and air outlet work together to form a uniform cooling air curtain, which cools the vertically descending FFS membrane bubble in all directions. The air supply temperature is detected in real time by a temperature sensor, and the working state of the heater or cooler is adjusted by the control system to keep the air supply temperature constant. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 The three-dimensional structure of this utility model Figure 1 ;

[0015] Figure 2 The structure of this utility model is three-dimensional. Figure 2 ;

[0016] Figure 3 This is a top view of the structure of this utility model;

[0017] Figure 4 This utility model Figure 3 Schematic diagram of the AA section structure;

[0018] Figure 5 This utility model Figure 3 A schematic diagram of the BB cross-section structure.

[0019] In the diagram: 1 Cooling air ring, 2 Ventilation cavity, 3 Air inlet, 4 Air outlet, 5 Bracket base, 6 Support foot, 7 Fan, 8 Air supply duct, 9 Refrigerator, 10 Heater, 11 Temperature sensor, 12 Curved air duct, 13 Six ventilation ducts, 14 Installation platform. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 5 As shown, this utility model discloses a novel FFS membrane constant temperature cooling device. The technical solution adopted includes a cooling air ring 1, an air intake component, an air supply component, and a temperature control component. The cooling air ring 1 is a vertically installed ring structure. The cooling air ring 1 is sleeved on the outside of the FFS membrane bubble. The center line of the cooling air ring coincides with the center line of the membrane bubble. The distance between the inner side wall of the cooling air ring and the outer surface of the membrane bubble is 80mm. A ventilation cavity 2 is opened inside the cooling air ring 1. Two sets of air inlets 3 connected to the ventilation cavity 2 are symmetrically opened on the outer side wall of the cooling air ring 1. Each set of air inlets 3 has five air inlets. Air outlets 4 connected to the ventilation cavity 2 are evenly opened on the inner side wall of the cooling air ring 1. The diameter of the air outlets 4 is 1.5mm, the spacing between the outlets is 15mm, and the air outlet direction forms a 30° angle with the radial direction. Three support seats 5 are evenly arranged at the lower end of the cooling air ring 1 for clamping and fixing the cooling air ring 1. An installation platform 14 is fixed to the outer side wall of one of the support seats 5.

[0022] The air intake assembly includes a six-ventilation duct 13 and an arc-shaped duct 12. There are two sets of six-ventilation ducts 13, which are symmetrically arranged at both ends of the cooling air ring 1. The air outlet of the six-ventilation duct 13 is connected to the air inlet 3. The two ends of the arc-shaped duct 12 are respectively connected to the air inlet of the six-ventilation duct 13.

[0023] The air supply assembly includes a fan 7 and an air supply duct 8. The fan 7 is mounted on the surface of the mounting platform 14. The outlet of the air supply duct 8 is connected to the inlet of the curved air duct 12, and the inlet of the air supply duct 8 is connected to the outlet of the fan 7. The fan 7 has a power of 1.5KW and an air volume of 1000m³ / h. 3 The centrifugal fan has a capacity of / h, and the diameter of the air supply duct 8 is 200mm;

[0024] The temperature control component includes a cooler 9, a heater 10, and a temperature controller. A temperature sensor 11 is located at the outlet of the air supply duct 8. The heater 10 and the cooler 9 are connected in series in the air supply duct 8. The cooler 9 uses a semiconductor cooling chip with a cooling capacity of 500W, and the heater 10 uses a PTC heater with a power of 3KW. The temperature control component uses a PLC controller and controls the working state of the heater 10 and the cooler 9 through a PID algorithm to control the air supply temperature within the range of ±1℃ of the set value.

[0025] As a preferred technical solution of this utility model, the heater 10 and the cooler 9 are installed in the middle section of the air supply pipe 8, and the temperature sensor 11 is installed at the end of the air supply pipe 8 near the air inlet of the arc-shaped air duct 12.

[0026] As a preferred technical solution of this utility model, the air supply duct 8 is a flexible air duct, and the support base 5 is evenly provided with support feet 6 on its lower surface.

[0027] During operation, the operator sets the cooling temperature, such as 20℃, and the system automatically adjusts the heating and cooling power to maintain constant temperature air supply. The cooling air is blown out from the air outlet 4 on the inner wall of the air ring, forming a uniform cooling air curtain to uniformly cool the vertically descending FFS membrane bubble from all directions.

[0028] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0029] Components not described in detail in this article are existing technologies.

[0030] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A novel FFS membrane constant temperature cooling device, comprising a cooling air ring (1), an exhaust fan assembly, an exhaust fan assembly, and a temperature control assembly, characterized in that, The cooling air ring (1) is a vertically installed ring structure. The cooling air ring (1) is sleeved on the outside of the FFS membrane bubble. The cooling air ring (1) has a ventilation cavity (2) inside. The outer side wall of the cooling air ring (1) has two sets of air inlets (3) that communicate with the ventilation cavity (2) symmetrically opened. Each set of air inlets (3) has five air inlets. The inner side wall of the cooling air ring (1) has air outlets (4) that communicate with the ventilation cavity (2) evenly opened. The lower end of the cooling air ring (1) is evenly provided with three support seats (5) for clamping and fixing the cooling air ring (1). One of the support seats (5) has an installation platform (14) extending and fixed to its outer side wall. The air intake assembly includes a six-ventilation duct (13) and an arc-shaped duct (12). There are two sets of six-ventilation ducts (13), which are symmetrically arranged at both ends of the cooling air ring (1). The air outlet of the six-ventilation duct (13) is connected to the air inlet (3). The two ends of the arc-shaped duct (12) are respectively connected to the air inlet of the six-ventilation duct (13). The air supply assembly includes a fan (7) and an air supply duct (8). The fan (7) is installed on the surface of the installation platform (14). The outlet of the air supply duct (8) is connected to the air inlet of the arc-shaped air duct (12). The inlet of the air supply duct (8) is connected to the outlet of the fan (7). The temperature control component includes a cooler (9), a heater (10) and a temperature sensor (11). The temperature sensor (11) is located at the outlet of the air supply pipe (8). The heater (10) and the cooler (9) are connected in series in the air supply pipe (8).

2. The novel FFS membrane constant temperature cooling device according to claim 1, characterized in that: The centerline of the cooling air ring (1) coincides with the centerline of the membrane bubble, and the inner wall of the cooling air ring (1) maintains a distance of 50-100mm from the outer surface of the membrane bubble.

3. The novel FFS membrane constant temperature cooling device according to claim 1, characterized in that: The heater (10) and the cooler (9) are installed in the middle section of the air supply pipe (8), and the temperature sensor (11) is installed at the end of the air supply pipe (8) near the air inlet of the arc-shaped air duct (12).

4. The novel FFS membrane constant temperature cooling device according to claim 1, characterized in that: The air outlet (4) has an air outlet direction that forms a 30° angle with the tangent of the inner wall of the cooling air ring (1).

5. The novel FFS membrane constant temperature cooling device according to claim 1, characterized in that: The air supply duct (8) is a flexible duct, and the lower surface of the support base (5) is uniformly provided with support feet (6).

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