Cooling device for packaging film production

Abstract

The utility model relates to a cooling device for packaging film production, which comprises a cooling box body, an air guide mechanism is arranged in the cooling box body, the air guide mechanism comprises an air guide box body and an air guide plate, two air guide cavities are formed in the air guide box body, each air guide cavity is provided with an air outlet, and the two air guide cavities are communicated through an air inlet pipe. A plurality of air guide plates are arranged in the air outlet in a swinging mode through a rotating shaft, one end of the rotating shaft is fixedly connected with a transmission rod, two transmission plates capable of sliding horizontally are arranged on the air guide box body, a plurality of transmission sleeves are rotatably arranged on the transmission plates, and the transmission rod is arranged in the transmission sleeves in a penetrating mode. Two first transmission screws which are opposite in rotation direction and are in threaded connection with the two transmission plates respectively are rotationally arranged in the cooling box body, the ends of the two first transmission screws are in butt joint, and one of the two first transmission screws is in transmission connection with a motor arranged on the cooling box body. According to the cooling device for packaging film production, the coverage area of cooling air can be adjusted to be matched with packaging films of different widths, energy is saved, and the cooling effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging film production equipment, and in particular to a cooling device for packaging film production. Background Technology

[0002] After the packaging film is formed, it needs to be cooled by a cooling device to achieve its shape. In the prior art, for example, the utility model patent: a cooling device for a plastic packaging film forming device (publication number: CN209381245U) discloses a cooling device that cools the packaging film by delivering cold air to the surface of the packaging film. However, in the above-mentioned cooling device, the width of the area covered by the cold air blowing onto the packaging film is not adjustable, and it cannot be adapted to packaging films of different widths. If the width of the cold air coverage area is greater than the width of the packaging film, it will cause energy loss. If the width of the cold air coverage area is less than the width of the packaging film, it will lead to uneven cooling of the packaging film.

[0003] To address the aforementioned problems, this utility model provides improvements. Utility Model Content

[0004] This utility model proposes a cooling device for packaging film production, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A cooling device for packaging film production includes a cooling box, an air guiding mechanism inside the cooling box, the air guiding mechanism including an air guiding box and air guiding plates, two air guiding cavities formed inside the air guiding box, the air guiding cavities having air outlets facing the packaging film conveying path and the two air guiding cavities being connected by an air inlet pipe, a plurality of air guiding plates being oscillatingly disposed in the air outlets via a rotating shaft, one end of the rotating shaft passing through the air guiding box and fixedly connected to a transmission rod, two horizontally sliding transmission plates being disposed on the outer wall of the air guiding box, a plurality of transmission sleeves being rotatably disposed on the transmission plates, the transmission rods passing through the transmission sleeves, two first transmission screws with opposite directions of rotation being rotatably disposed inside the cooling box and respectively screwed to the two transmission plates, the ends of the two first transmission screws being joined together, and one of the first transmission screws being drively connected to a motor disposed on the cooling box.

[0007] Preferably, a support rod is fixedly installed on the outer wall of the air guide box, and the transmission plate is slidably inserted through the support rod.

[0008] Preferably, a plurality of partitions corresponding one-to-one with the plurality of air guide plates are fixedly arranged inside the air guide cavity, and the ends of the air guide plates and the ends of the partitions are connected by a flexible connecting cloth.

[0009] Preferably, a flow equalization plate is fixedly disposed inside the air guide cavity at the end of the partition away from the air guide plate, and the flow equalization plate is provided with a plurality of flow equalization honeycomb holes.

[0010] Preferably, two air guiding mechanisms are symmetrically arranged vertically along the packaging film conveying path.

[0011] Preferably, two edge-pressing mechanisms are symmetrically arranged inside the cooling box, located on both sides of the packaging film conveying path. Each edge-pressing mechanism includes a sliding frame, a first edge-pressing wheel, and a second edge-pressing wheel. The sliding frame is horizontally slidably arranged inside the cooling box. A plurality of first edge-pressing wheels are rotatably arranged on the sliding frame, located below the packaging film conveying path and distributed along the packaging film conveying direction. A plurality of second edge-pressing wheels are rotatably arranged on the sliding frame, corresponding one-to-one with the plurality of first edge-pressing wheels. Two second transmission screws are screwed onto the sliding frame, and the ends of the two first transmission screws are respectively connected to the first transmission screws of the two air guiding mechanisms. The two second transmission screws pass through the cooling box and are connected to the motor drive through the cooperation of a synchronous pulley and a synchronous belt.

[0012] Preferably, the sliding frame is provided with a plurality of telescopic wheel frames that can slide longitudinally, and the sliding frame is provided with a plurality of springs that abut against the plurality of telescopic wheel frames, and the second pressure wheel is rotatably mounted on the telescopic wheel frames.

[0013] In summary, the beneficial effects of this utility model are as follows: the air guide plate guides the flow of cooling air. When it is necessary to adjust the coverage area of ​​the cooling air to match the width of the packaging film, the motor simultaneously drives two first transmission screws connected at their ends to rotate. The two first transmission screws, through screw connection with two transmission plates, drive the two transmission plates to slide along the width direction of the packaging film on the support rod. The transmission plates drive the transmission sleeve to swing, and the transmission sleeve drives the transmission rod to swing and slide within the transmission sleeve. The transmission rod, in turn, drives the air guide plate to swing through the rotating shaft. Since the rotation directions of the two first transmission screws are opposite, the sliding directions of the two transmission plates driven by the synchronous rotation of the two first transmission screws are also opposite. This makes the swing direction of the air guide plate in the air outlet of the two air guide cavities opposite. Thus, by adjusting the flow direction of the cooling air through the swing of the air guide plate, the coverage area of ​​the cooling air is reduced or expanded along the center of the width of the packaging film, making it suitable for packaging films of different widths. This achieves better cooling effect while saving energy. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model after the cooling box has been removed;

[0017] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram of the air guiding mechanism in this utility model;

[0020] Figure 6 This is a schematic diagram of the pressure edge mechanism in this utility model;

[0021] Figure 7 This is a schematic diagram of the air guide plate driving structure in this utility model.

[0022] In the diagram: 1. Cooling box; 2. Air guide mechanism; 21. Air guide box; 211. Air guide cavity; 212. Air outlet; 213. Air inlet pipe; 22. Air guide plate; 221. Rotating shaft; 222. Transmission rod; 23. Transmission plate; 24. Transmission sleeve; 25. First transmission screw; 26. Support rod; 27. Partition plate; 28. Connecting cloth; 29. ​​Flow equalization plate; 3. Motor; 4. Edge pressing mechanism; 41. Sliding frame; 42. First edge pressing wheel; 43. Second edge pressing wheel; 44. Second transmission screw; 45. Telescopic wheel frame; 46. Spring. Detailed Implementation

[0023] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] As shown in the figure, a cooling device for packaging film production includes a cooling box 1. An air guiding mechanism 2 is installed inside the cooling box 1. The air guiding mechanism 2 includes an air guiding box 21 and air guiding plates 22. Two air guiding cavities 211 are formed inside the air guiding box 21. Each air guiding cavity 211 has an air outlet 212 facing the packaging film conveying path, and the two air guiding cavities 211 are connected by an air inlet pipe 213. A plurality of air guiding plates 22 are oscillatingly disposed within the air outlet 212 via a rotating shaft 221, one end of which passes through... A transmission rod 222 is fixedly connected to the air guide box 21. Two horizontally sliding transmission plates 23 are provided on the outer wall of the air guide box 21. Several transmission sleeves 24 are rotatably arranged on the transmission plates 23. The transmission rod 222 passes through the transmission sleeves 24. Two first transmission screws 25 with opposite directions of rotation are rotatably arranged in the cooling box 1 and are respectively screwed to the two transmission plates 23. The ends of the two first transmission screws 25 are connected together, and one of the first transmission screws 25 is connected to the motor 3 arranged on the cooling box 1.

[0025] Specifically, the transmission plate 23 is slidably disposed on the air guide box 21: a support rod 26 is fixedly disposed on the outer wall of the air guide box 21, and the transmission plate 23 is slidably disposed on the support rod 26.

[0026] In the above structure, the air inlet pipe 213 is connected to an external fan. The fan delivers cooling air to the air guide cavity 211 of the air guide box 21 through the air inlet pipe 213. The packaging film being transported enters the cooling box 1 through the inlet of the cooling box 1, passes under the air guide mechanism 2, and exits through the outlet of the cooling box 1, so that the packaging film continuously passes under the air guide mechanism 2. At the same time, the cooling air delivered by the fan into the air guide cavity 211 flows to the packaging film after passing between two adjacent air guide plates 22, thereby cooling the packaging film. In the above process, the air guide plates 22 guide the flow of cooling air. When it is necessary to adjust the coverage area of ​​the cooling air to match the width of the packaging film, the motor 3 simultaneously drives the two first transmission screws 25 connected at their ends to rotate. The two first transmission screws 25 respectively pass through... The screw connection between the two transmission plates 23 and the support rod 26 causes the two transmission plates 23 to slide along the width of the packaging film. The transmission plates 23 drive the transmission sleeve 24 to swing, and the transmission sleeve 24 drives the transmission rod 222 to swing and slide within the transmission sleeve 24. The transmission rod 222 then drives the air guide plate 22 to swing through the rotating shaft 221. Since the two first transmission screws 25 rotate in opposite directions, when the two first transmission screws 25 rotate synchronously, the sliding direction of the two transmission plates 23 is also opposite. This makes the swing direction of the air guide plate 22 in the air outlet 212 of the two air guide chambers 211 opposite. Thus, the swing of the air guide plate 22 adjusts the cooling airflow direction, making the cooling air coverage area shrink or expand along the width center of the packaging film, so as to adapt it to packaging films of different widths, thereby saving energy and achieving a better cooling effect.

[0027] Furthermore, based on the above structure, a plurality of partitions 27 corresponding one-to-one with a plurality of air guide plates 22 are fixedly installed inside the air guide cavity 211. The ends of the air guide plates 22 and the ends of the partitions 27 are connected by a flexible connecting cloth 28. An air guide channel is formed between two adjacent partitions 27. The air guide channel guides the cooling air entering the air guide cavity 211 to flow between two adjacent air guide plates 22, so that the cooling air entering the air guide cavity 211 flows out evenly from between two adjacent air guide plates 22 and blows onto the packaging film, making the distribution of the cooling air blown onto the packaging film more uniform in the width direction of the packaging film, and achieving a more uniform cooling effect on the packaging film. The flexible connecting cloth 28 ensures the airtightness of the air guide channel while providing space for the swing of the air guide plates 22.

[0028] Furthermore, based on the above structure, a flow equalization plate 29 is fixedly installed inside the air guide cavity 211 on the side of the end of the partition 27 away from the air guide plate 22. The flow equalization plate 29 has several flow equalization honeycomb holes. After the cooling air enters the cooling cavity, the flow equalization honeycomb plate on the flow equalization plate 29 makes the cooling air enter the air guide channels formed by the two adjacent partitions 27 more evenly, so that the cooling air blown towards the packaging film is more evenly distributed in the width direction of the packaging film, ensuring a more uniform cooling effect on the packaging film.

[0029] In addition, based on the above structure, two air guide mechanisms 2 are symmetrically arranged vertically along the packaging film conveying path. The two air guide mechanisms 2 distributed vertically simultaneously cool the packaging film on both sides of the packaging film, thereby improving the cooling efficiency and ensuring the cooling effect.

[0030] In addition, based on the above structure, two edge-pressing mechanisms 4 are symmetrically arranged inside the cooling box 1, located on both sides of the packaging film conveying path. Each edge-pressing mechanism 4 includes a sliding frame 41, a first edge-pressing wheel 42, and a second edge-pressing wheel 43. The sliding frame 41 is horizontally slidable inside the cooling box 1 via a linear slide rail fixed to the inner wall of the cooling box 1. A plurality of first edge-pressing wheels 42 are rotatably mounted on the sliding frame 41, located below the packaging film conveying path and distributed along the packaging film conveying direction. A plurality of second edge-pressing wheels 43 are rotatably mounted on the sliding frame 41, corresponding one-to-one with the plurality of first edge-pressing wheels 42. Two second transmission screws 44 are screwed onto the sliding frame 41, and the ends of the two first transmission screws 25 are respectively connected to the first transmission screws 25 of the two air guide mechanisms 2. The two second transmission screws 44 extend out of the cooling box 1 and are connected to the motor 3 via a synchronous pulley and synchronous belt. The packaging film passes between the two air guide mechanisms 2. During cooling, the side end of the packaging film passes between the first pressing roller 42 and the second pressing roller 43. The first pressing roller 42 and the second pressing roller 43 press against the two sides of the packaging film, pressing the side end of the packaging film tightly to prevent the packaging film from curling or warping during cooling, thus ensuring the cooling effect. When the motor 3 drives the first transmission screw 25 to swing the air guide plate 22 to match the width of the packaging film, the second transmission screw 44 is driven by the motor 3 and rotates synchronously with the first transmission screw 25. The first transmission screw 25 drives the two sliding frames 41 to slide towards or away from each other through the screw connection with the sliding frame 41, so that the distance between the two pressing mechanisms 4 matches the width of the packaging film and can press the edges of packaging films of different widths. By selecting the first transmission screw 25 and the second transmission screw 44 with appropriate transmission ratios, the air guide plate 22 and the sliding frame 41 can be driven and adjusted simultaneously by one motor 3, so that the two work synchronously to better match the packaging films of different widths.

[0031] Furthermore, based on the above structure, the sliding frame 41 is provided with a plurality of telescopic wheel frames 45 that can slide longitudinally, and the sliding frame 41 is provided with a plurality of springs 46 that abut against the plurality of telescopic wheel frames 45. The second pressing wheel 43 is rotatably mounted on the telescopic wheel frame 45. Under the action of the springs 46, the telescopic wheel frame 45 has a tendency to slide towards the first pressing wheel 42, which makes the second pressing wheel have a tendency to move towards the second pressing wheel 43. This allows the second pressing wheel 43 to cooperate with the first pressing wheel 42 to press the side of packaging film of different thicknesses, thus having better applicability.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cooling device for packaging film production, comprising a cooling box (1), characterized in that: The cooling box (1) is provided with an air guiding mechanism (2), which includes an air guiding box (21) and air guiding plates (22). The air guiding box (21) has two air guiding cavities (211), each having an air outlet (212) facing the packaging film conveying path. The two air guiding cavities (211) are connected by an air inlet pipe (213). Several air guiding plates (22) are oscillatingly disposed in the air outlet (212) via a rotating shaft (221). One end of the rotating shaft (221) passes through the air guiding box (21) and is fixedly connected. There is a transmission rod (222), and two horizontally sliding transmission plates (23) are provided on the outer wall of the air guide box (21). Several transmission sleeves (24) are rotatably provided on the transmission plates (23). The transmission rod (222) passes through the transmission sleeves (24). Two first transmission screws (25) with opposite directions of rotation are rotatably provided in the cooling box (1) and are respectively screwed to the two transmission plates (23). The ends of the two first transmission screws (25) are connected together, and one of the first transmission screws (25) is connected to the motor (3) provided on the cooling box (1).

2. The cooling device for a packaging film production according to claim 1, characterized in that: A support rod (26) is fixedly installed on the outer wall of the air guide box (21), and the transmission plate (23) is slidably inserted on the support rod (26).

3. The cooling device for a packaging film production according to claim 2, characterized in that: The air guide cavity (211) is fixedly provided with a number of partitions (27) corresponding to a number of air guide plates (22). The ends of the air guide plates (22) and the ends of the partitions (27) are connected by a flexible connecting cloth (28).

4. The cooling device for packaging film production according to claim 3, characterized in that: The air guide cavity (211) is fixedly provided with a flow equalization plate (29) located on the side of the end of the partition plate (27) away from the air guide plate (22), and the flow equalization plate (29) is provided with a plurality of flow equalization honeycomb holes.

5. The cooling device for a packaging film production according to claim 4, characterized in that: The air guiding mechanism (2) has two symmetrically arranged along the packaging film conveying path.

6. The cooling device for a packaging film production according to claim 5, characterized in that: The cooling box (1) is symmetrically provided with two edge pressing mechanisms (4) located on both sides of the packaging film conveying path. The edge pressing mechanism (4) includes a sliding frame (41), a first edge pressing wheel (42) and a second edge pressing wheel (43). The sliding frame (41) is horizontally slidably arranged in the cooling box (1). Several first edge pressing wheels (42) are rotatably arranged on the sliding frame (41) located below the packaging film conveying path and distributed along the packaging film conveying direction. Several second edge pressing wheels (43) are rotatably arranged on the sliding frame (41) and correspond one-to-one with several first edge pressing wheels (42). Two second transmission screws (44) are screwed onto the sliding frame (41), and the ends of the two first transmission screws (25) are respectively connected to the first transmission screws (25) of the two air guiding mechanisms (2). The two second transmission screws (44) pass out of the cooling box (1) and are connected to the motor (3) through the cooperation of the synchronous pulley and the synchronous belt.

7. The cooling device for a packaging film production according to claim 6, characterized in that: The sliding frame (41) is provided with a plurality of telescopic wheel frames (45) that can slide longitudinally. The sliding frame (41) is provided with a plurality of springs (46) that are tightly abutting against the plurality of telescopic wheel frames (45). The second pressing wheel (43) is rotatably mounted on the telescopic wheel frame (45).

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