Annular cooling structure of packaging bag

Abstract

The utility model belongs to the technical field of packaging bag cooling, and discloses a packaging bag annular cooling structure which comprises a machine frame assembly used for supporting and fixing and further comprises a swing assembly installed on the machine frame assembly and used for reciprocating rotation, and an air blowing assembly used for circumferentially blowing air to cool a packaging bag is installed on the swing assembly. The swing assembly and the air blowing assembly are each of a two-half type. The swing assembly comprises a gear ring, the gear ring is of a two-half type, the two sides of the gear ring are meshed with gears respectively, and servo motors are arranged below the gears. The air blowing assembly comprises a plurality of air uniformizing rings, the air uniformizing rings are evenly distributed up and down, and each air uniformizing ring is of a two-half type. According to the annular cooling structure of the packaging bag, due to the arrangement of a two-half structure, the convenience of maintenance is improved; through the arrangement of reciprocating rotation, the uniformity of cold air spraying is improved; and through the arrangement of tooth meshing transmission, the transmission stability is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging bag cooling, and particularly relates to an annular cooling structure for packaging bags. Background Art

[0002] Generally, a packaging bag melts plastic particles by an extruder, then evenly blows out the molten material by a blown film forming mechanism to form a film, and then cools it to rapidly and uniformly reduce the temperature of the material, ensuring that the material can quickly form a film and be wound up.

[0003] A Chinese patent with the comparative announcement number CN217916751U discloses a forming and cooling device for producing packaging bag films, including: a bracket; a cooling air blowing shell, the cooling air blowing shell is of an annular structure, the cooling air blowing shell is provided with a total air inlet, the central axis of the cooling air blowing shell extends in the up and down direction, and the upper and lower sides of the cooling air blowing shell are respectively set as a feeding side and a discharging side; a plurality of air blowing channels are uniformly distributed on the inner peripheral wall of the cooling air blowing shell, the air blowing channels are set as linear channels, both ends of the air blowing channel are respectively set as an air outlet end and an air inlet end, the air inlet end is communicated with the total air inlet, the air outlet end is communicated with the outside, the extending axis of the air blowing channel is arranged at an angle with the up and down direction, and the air outlet end is arranged on one side of the air inlet end close to the feeding side.

[0004] However, the above patent adopts an integral annular structure. When disassembling, assembling and maintaining, it is necessary to disconnect the packaging bag first, and then reconnect it after the maintenance is completed, which is very cumbersome and increases the difficulty of maintenance. Therefore, a new device needs to be designed. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an annular cooling structure for packaging bags to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An annular cooling structure for packaging bags includes a frame assembly for supporting and fixing, and further includes a swing assembly installed on the frame assembly for reciprocating rotation, and a blowing assembly installed on the swing assembly for circumferentially blowing air to cool the packaging bag. Both the swing assembly and the blowing assembly are in two halves; the swing assembly includes a gear ring, the gear ring is in two halves, gears are respectively meshed on both sides of the gear ring, and a servo motor is arranged below the gears; the blowing assembly includes a plurality of air equalizing rings, the air equalizing rings are evenly distributed up and down, each air equalizing ring is in two halves, a plurality of air outlet holes are evenly distributed on the inner surface of each air equalizing ring, an air inlet pipe is arranged in the middle of the air equalizing rings on the same side, and two fixing frames are symmetrically arranged at both ends.

[0008] Further: The frame assembly includes a support frame, a through hole is provided in the middle of the support frame, and an annular bracket is provided on the support frame.

[0009] Further: The annular bracket and the support frame are welded together, and the gear ring and the annular bracket are rotatably connected.

[0010] Further: The gear and the servo motor are connected by a flat key, and the fixing frame and the end face of the gear ring are riveted together.

[0011] Further: The fixing frame is made of 45 steel material, and the fixing frame and the air equalizing ring are welded together.

[0012] Further: Three air equalizing rings are provided, and the intake pipe and the air equalizing ring are welded together.

[0013] Compared with the prior art, the beneficial effects are as follows:

[0014] 1. By setting the split structure, the convenience of maintenance is increased;

[0015] 2. By setting the reciprocating rotation, the uniformity of cold air spraying is increased;

[0016] 3. By setting the gear meshing transmission, the smoothness of transmission is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of an annular cooling structure for packaging bags according to the present invention;

[0018] Figure 2 is a schematic diagram of the frame assembly of an annular cooling structure for packaging bags according to the present invention;

[0019] Figure 3 is a schematic diagram of the swing assembly of an annular cooling structure for packaging bags according to the present invention;

[0020] Figure 4 is a schematic diagram of the blowing assembly of an annular cooling structure for packaging bags according to the present invention.

[0021] In the attached drawing reference numerals: 101, support frame; 102, through hole; 103, annular bracket; 201, servo motor; 202, gear; 203, gear ring; 301, air equalizing ring; 302, air outlet; 303, intake pipe; 304, fixing frame. DETAILED DESCRIPTION OF THE INVENTION

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , a circular cooling structure for a packaging bag, which includes a frame assembly for support and fixation, and further includes a swing assembly installed on the frame assembly for reciprocating rotation, and a blowing assembly installed on the swing assembly for circumferentially blowing air to cool the packaging bag. Both the swing assembly and the blowing assembly are split into two halves.

[0024] In this embodiment: The frame assembly includes a support frame 101, a through hole 102 is provided in the middle of the support frame 101, a circular support 103 is provided on the support frame 101, the circular support 103 and the support frame 101 are welded together, the packaging bag passes through the support frame 101 through the through hole 102, and the circular support 103 supports the rotation of the gear ring 203;

[0025] In this embodiment: The swing assembly includes a gear ring 203, the gear ring 203 is rotatably connected to the circular support 103, the gear ring 203 is split into two halves, two gears 202 are respectively meshed on both sides of the gear ring 203, a servo motor 201 is provided below the gears 202, the gears 202 and the servo motor 201 are connected by a flat key, and the servo motor 201 drives the gears 202 to mesh with the gear ring 203 to reciprocate under the support of the circular support 103;

[0026] In this embodiment: The blowing assembly includes three air distribution rings 301, the air distribution rings 301 are evenly distributed up and down, each air distribution ring 301 is split into two halves, a number of air outlets 302 are evenly distributed on the inner surface of the air distribution ring 301, an air inlet pipe 303 is provided in the middle of the air distribution rings 301 on the same side, the air inlet pipe 303 and the air distribution ring 301 are welded together, two fixing brackets 304 are symmetrically arranged at both ends, the fixing brackets 304 are made of 45 steel material, the fixing brackets 304 and the air distribution ring 301 are welded together, the fixing brackets 304 and the end face of the gear ring 203 are riveted together, cold air enters the air distribution ring 301 through the air inlet pipe 303 and is sprayed towards the circumference of the packaging bag through the air outlets 302 to cool the packaging bag, and the fixing brackets 304 connect the air distribution ring 301 and the gear ring 203.

[0027] Working principle: The packaging bag passes through the through hole 102 and the support frame 101. The cold air enters the air distribution ring 301 from the air inlet pipe 303 and is sprayed towards the circumference of the packaging bag through the air outlet 302 to cool the packaging bag. At the same time, the servo motor 201 drives the gear 202 to engage with the gear ring 203, and reciprocally rotates under the support of the annular support 103. The air distribution ring 301 is driven by the fixing frame 304 to reciprocally rotate, increasing the uniformity of the cold air spraying. During maintenance, keep the packaging bag stationary and remove the gear ring 203 and the air distribution ring 301 from both sides respectively, which increases the convenience of maintenance.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging bag annular cooling structure, comprising a frame assembly for supporting and fixing, characterized in that: It also includes a swing assembly mounted on the frame assembly for reciprocating rotation, a blowing assembly for circumferentially blowing and cooling the packaging bag mounted on the swing assembly, and both the swing assembly and the blowing assembly are in two halves; The swing assembly comprises a gear ring (203), the gear ring (203) is a two-half type, gears (202) are respectively meshed on both sides of the gear ring (203), and a servo motor (201) is arranged under the gear (202); The blowing assembly comprises a plurality of air equalizing rings (301), the air equalizing rings (301) are evenly distributed up and down, each of the air equalizing rings (301) is in two halves, a plurality of air outlets (302) are evenly distributed on the inner surface of the air equalizing ring (301), an air inlet pipe (303) is arranged in the middle of the air equalizing ring (301) on the same side, and two fixing frames (304) are symmetrically arranged at both ends.

2. The annular cooling structure for packaging bags according to claim 1, characterized in that: The frame assembly comprises a support frame (101), a through hole (102) is arranged in the middle of the support frame (101), and an annular support (103) is arranged on the support frame (101).

3. The annular cooling structure for packaging bags according to claim 2, characterized in that: The annular bracket (103) and the support frame (101) are welded together, and the gear ring (203) and the annular bracket (103) are rotatably connected.

4. The annular cooling structure for packaging bags according to claim 1, characterized in that: The gear (202) and the servo motor (201) are connected by a flat key, and the end faces of the fixing frame (304) and the gear ring (203) are riveted together.

5. The annular cooling structure for packaging bags according to claim 1, characterized in that: The fixing frame (304) is made of 45 steel material, and the fixing frame (304) and the gas equalizing ring (301) are welded together.

6. The annular cooling structure for packaging bags according to claim 1, characterized in that: Three gas equalizing rings (301) are provided, and the air inlet pipe (303) and the gas equalizing ring (301) are welded together.

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