A cooling mechanism for film blowing machine

Abstract

The utility model relates to the technical field of film blowing machines, and discloses a cooling mechanism for a film blowing machine, comprising an operating table, an equipment frame, a cold air fan, an internal cooling mechanism, an external cooling mechanism, a first support frame, a second support frame, a first mounting frame, a second mounting frame and a first motor, wherein the output end of the first motor passes through the first support frame and is fixedly connected to an active roller, a driven roller is rotatably connected to the upper part of the inner wall of the first support frame, a plurality of cold fans are fixedly connected to the bottom and top ends of the second support frame at equal distances, a first guide roller is fixedly connected to one side of the inner wall of the second support frame, a second guide roller is fixedly connected to the middle part of the inner wall of the first mounting frame, a second motor is fixedly installed at the rear end of the second mounting frame, the output end of the second motor passes through the second mounting frame and is fixedly connected to a winding roller, and the film is cooled simultaneously by the internal cooling mechanism and the external cooling mechanism to ensure the cooling effect and the cooling uniformity.

Description

Technical Field

[0001] The utility model relates to the technical field of film blowing machines, and more particularly to a cooling mechanism for film blowing machines. Background Art

[0002] A film blowing machine is a machine used to produce plastic film. It heats and melts plastic particles, then extrudes them into a film tube through an extruder. The film tube is then expanded to the required width and thickness, and finally the film is rolled into a roll. The film blowing machine is suitable for the production of various plastic films, such as polyethylene, polypropylene, polyvinyl chloride, etc. The films produced can be widely used in packaging, agricultural covering, construction, medical and health care and other fields.

[0003] Deficiencies of the existing technology: After the film blowing machine in the existing technology extrudes the plastic film, the extruded thermoplastic plastic film needs to be quickly cooled to solidify it and maintain a stable shape. The existing technology usually uses cooling fans and other equipment for cooling. Due to the different thicknesses and widths of the films, the film may have uneven temperature distribution during the cooling process, affecting the quality and stability of the product. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a cooling mechanism for a film blowing machine to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a cooling mechanism for a film blowing machine, comprising an operating table, the left end of the operating table is fixedly connected to an equipment frame, the rear end of the equipment frame is fixedly connected to a cold air fan, and an internal cooling mechanism is fixedly installed in the inner cavity of the equipment frame, the left sides of the front and rear ends of the operating table are commonly fixedly connected to a first support frame, a first motor is fixedly installed on one side of the top end of the first support frame, the output end of the first motor passes through the first support frame and is fixedly connected to an active roller, the upper part of the inner wall of the first support frame is rotatably connected to a driven roller, the positions of the active roller and the driven roller correspond to each other, an external cooling mechanism is fixedly installed on one side of the front end of the operating table, a second support frame is fixedly installed in the middle of the outer surface of the operating table, a plurality of cold fans are fixedly connected to the bottom and top of the second support frame at equal distances, a first guide roller is fixedly connected on one side of the inner wall of the second support frame, the first mounting frame is fixedly connected to the right side of the front and rear ends of the operating table, the second guide roller is fixedly connected in the middle of the inner wall of the first mounting frame, the right end of the operating table is fixedly connected to the second mounting frame, the rear end of the second mounting frame is fixedly installed with a second motor, the output end of the second motor passes through the second mounting frame and is fixedly connected to a winding roller.

[0006] Preferably, the internal cooling mechanism includes an extruder, a fixed ring is fixedly connected to the top of the extruder, four air outlet pipes are fixedly connected to the annular array at the bottom end of the fixed ring, four connecting plates are fixedly connected to the annular array around the outer surface of the fixed ring, a protective ring is fixedly connected to the upper part of the inner cavity of the fixed ring, and an air outlet is opened in the middle of the inner wall of the fixed ring.

[0007] Preferably, the top of the extruder is located on the inner wall of the fixed ring, the connecting plate is fixedly connected to the top of the equipment frame, and the end of the air outlet pipe away from the fixed ring is fixedly connected to the outlet of the air cooler.

[0008] Preferably, the external cooling mechanism includes a condensing water tank and two hollow connecting rods, the right ends of the condensing water tank are fixedly connected to a water outlet pipe and a return pipe respectively, the outer surfaces of the two hollow connecting rods are rotatably connected to a temperature conducting roller, and the ends of the two hollow connecting rods away from the condensing water tank are commonly fixedly connected to a circulation pipe.

[0009] Preferably, the ends of the water outlet pipe and the return pipe away from the condensation water tank are fixedly connected to one ends of two hollow connecting rods respectively.

[0010] Preferably, the water outlet pipe passes through the hollow connecting rod and is connected to the circulation pipe, and the two hollow connecting rods are fixedly connected to one side of the inner wall of the second support frame.

[0011] The technical effects and advantages of this utility model are:

[0012] 1. The utility model cools the film tube extruded from the extruder by providing an internal cooling mechanism. The air cooler blows air through evenly distributed air outlet pipes, and the cold air is evenly blown onto the surface of the film tube through the air outlet to cool it. The extruded film tube passes through the active roller and the driven roller. The first motor rotates the active roller. When the active roller rotates, the driven roller rotates with the pulling of the film. The film is squeezed by the active roller and the driven roller to ensure the uniformity of the film thickness.

[0013] 2. The utility model is provided with an external cooling mechanism to quickly cool the produced film. The film passing through the active roller and the driven roller passes through the two temperature-conducting rollers. A hollow connecting rod is provided in the middle of the inner cavity of the temperature-conducting roller. The inner cavity of the hollow connecting rod passes through the outlet pipe. The water in the inner cavity of the condensation water tank passes through the hollow connecting rod through the outlet pipe. The condensation water circulates through the circulation pipe. The circulating condensation water takes away the heat from the surface of the film, achieving the effect of rapid cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic structural diagram of the utility model from another perspective.

[0016] Figure 3 This is a schematic structural diagram of the internal cooling mechanism of the present utility model.

[0017] Figure 4 This is a schematic diagram of the external cooling mechanism structure of the present utility model.

[0018] The accompanying drawings are marked as follows: 1. operating table; 2. equipment rack; 3. air cooler; 4. internal cooling mechanism; 41. extruder; 42. fixing ring; 43. air outlet pipe; 44. connecting plate; 45. protective ring; 46. air outlet; 5. first support frame; 6. first motor; 7. active roller; 8. driven roller; 9. external cooling mechanism; 91. condensate tank; 92. hollow connecting rod; 93. water outlet pipe; 94. return pipe; 95. temperature guide roller; 96. circulation pipe; 10. second support frame; 11. cooling fan; 12. first guide roller; 13. first mounting frame; 14. second guide roller; 15. second mounting frame; 16. second motor; 17. winding roller. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The cooling mechanism for a film blowing machine involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] The utility model provides a cooling mechanism for a film blowing machine, such as Figure 1 and Figure 2As shown, it includes an operating table 1, the left end of the operating table 1 is fixedly connected to an equipment rack 2, the rear end of the equipment rack 2 is fixedly connected to an air cooler 3, the inner cavity of the equipment rack 2 is fixedly installed with an internal cooling mechanism 4, the left sides of the front and rear ends of the operating table 1 are commonly fixedly connected to a first support frame 5, the top side of the first support frame 5 is fixedly installed with a first motor 6, the output end of the first motor 6 passes through the first support frame 5 and is fixedly connected to an active roller 7, the active roller 7 is rotated by the first motor 6, the upper part of the inner wall of the first support frame 5 is rotatably connected to a driven roller 8, the positions of the active roller 7 and the driven roller 8 correspond, and the driven roller 8 rotates with the rotation of the active roller 7, an external cooling mechanism 9 is fixedly installed on the front side of the operating table 1, a second support frame 10 is fixedly installed in the middle of the outer surface of the operating table 1, and a plurality of cooling fans 1 are fixedly connected to the bottom and top of the second support frame 10 at equal distances. 1. The uniformity of the cooling effect is ensured by multiple cooling fans 11. A first guide roller 12 is fixedly connected to one side of the inner wall of the second support frame 10. The moving direction of the formed plastic film is ensured by the first guide roller 12. The first mounting frame 13 is fixedly connected to the right side of the front and rear ends of the operating table 1. The middle part of the inner wall of the first mounting frame 13 is fixedly connected to the second guide roller 14. The consistency of the moving direction of the plastic film is ensured by the second guide roller 14. The right end of the operating table 1 is fixedly connected to the second mounting frame 15. The rear end of the second mounting frame 15 is fixedly installed with a second motor 16. The output end of the second motor 16 passes through the second mounting frame 15 and is fixedly connected to a winding roller 17. The winding roller 17 is rotated by the second motor 16, and one end of the plastic film is wound around the outer surface of the winding roller 17. The plastic film is rolled up and collected by the rotation of the winding roller 17.

[0021] Further, such as Figure 3 As shown, the internal cooling mechanism 4 includes an extruder 41, a fixed ring 42 is fixedly connected to the top of the extruder 41, the top of the extruder 41 is located on the inner wall of the fixed ring 42, and four air outlet pipes 43 are fixedly connected to the annular array at the bottom end of the fixed ring 42. Four connecting plates 44 are fixedly connected to the annular array around the outer surface of the fixed ring 42, and the connecting plate 44 is fixedly connected to the top of the equipment rack 2. The stability of the internal cooling mechanism 4 is ensured by the equipment rack 2. A protective ring 45 is fixedly connected to the upper part of the inner cavity of the fixed ring 42, and an air outlet 46 is provided in the middle of the inner wall of the fixed ring 42. One end of the air outlet pipe 43 away from the fixed ring 42 is fixedly connected to the outlet of the air cooler 3, and the air cooler 3 blows air through the evenly distributed air outlet pipes 43, and blows the cold air evenly on the surface of the film tube through the air outlet 46 to cool it.

[0022] Further, such as Figure 4As shown, the external cooling mechanism 9 includes a condensation water tank 91 and two hollow connecting rods 92. The right end of the condensation water tank 91 is fixedly connected with an outlet pipe 93 and a return pipe 94. The condensed water in the condensation water tank 91 is transmitted through the outlet pipe 93. The outer surfaces of the two hollow connecting rods 92 are rotatably connected with a temperature conducting roller 95. The ends of the two hollow connecting rods 92 away from the condensation water tank 91 are commonly fixedly connected with a circulation pipe 96. The condensed water in the outlet pipe 93 flows back to the inner cavity of the condensation water tank 91 through the circulation pipe 96 and the return pipe 94 for recycling.

[0023] Furthermore, the ends of the outlet pipe 93 and the return pipe 94 away from the condensation water tank 91 are fixedly connected to one end of two hollow connecting rods 92 respectively. The outlet pipe 93 passes through the hollow connecting rod 92 and is connected to the circulation pipe 96. The two hollow connecting rods 92 are fixedly connected to one side of the inner wall of the second support frame 10, and the plastic film is passed through the two temperature conducting rollers 95. The water in the inner cavity of the condensation water tank 91 is passed through the hollow connecting rod 92 through the outlet pipe 93, and the condensation water is circulated through the circulation pipe 96. The heat on the surface of the film is taken away by the circulating condensation water, which has the effect of rapid cooling.

[0024] The working principle of the present invention is as follows: first, one end of the plastic tube extruded from the extruder 41 is passed through the active roller 7 and the driven roller 8. When the extruder 41 extrude the plastic film, the air cooler 3 blows air through the evenly distributed air outlet duct 43, and blows the cold air evenly on the surface of the film tube through the air outlet 46 to cool it down, so that the plastic film is cooled and formed. Then, the first motor 6 is started, and the active roller 7 is rotated by the first motor 6. When the active roller 7 rotates, the driven roller 8 rotates with the pulling of the film, and the film is squeezed by the active roller 7 and the driven roller 8 to ensure the uniformity of the film thickness. One end of the plastic film passing through the active roller 7 and the driven roller 8 is wound around the reel. The outer surface of the roller 17 is used to roll up and collect the plastic film through the rotation of the winding roller 17. In the meantime, the plastic film passes through the external cooling mechanism 9, the first guide roller 12 and the second guide roller 14 to ensure the accuracy of the moving position of the plastic film. After passing through the active roller 7 and the driven roller 8, the plastic film passes through the two temperature conducting rollers 95. The water in the inner cavity of the condensation water tank 91 passes through the hollow connecting rod 92 through the outlet pipe 93, and the condensation water circulates through the circulation pipe 96. The circulating condensation water takes away the heat from the surface of the film, which has the effect of rapid cooling. The cooled plastic film is evenly dissipated in the inner cavity of the second support frame 10 through the cold fans 11 on the upper and lower sides to ensure uniformity.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0026] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0027] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cooling mechanism for a film blowing machine, comprising an operating table (1), characterized in that: The left end of the operating table (1) is fixedly connected to an equipment frame (2), the rear end of the equipment frame (2) is fixedly connected to an air cooler (3), the inner cavity of the equipment frame (2) is fixedly installed with an internal cooling mechanism (4), the left sides of the front and rear ends of the operating table (1) are commonly fixedly connected to a first support frame (5), a first motor (6) is fixedly installed on one side of the top end of the first support frame (5), the output end of the first motor (6) passes through the first support frame (5) and is fixedly connected to an active roller (7), the upper part of the inner wall of the first support frame (5) is rotatably connected to a driven roller (8), the positions of the active roller (7) and the driven roller (8) correspond, an external cooling mechanism (9) is fixedly installed on one side of the front end of the operating table (1), the operating A second support frame (10) is fixedly installed in the middle of the outer surface of the platform (1); a plurality of cooling fans (11) are fixedly connected to the bottom and top of the second support frame (10) at equal distances; a first guide roller (12) is fixedly connected to one side of the inner wall of the second support frame (10); a first mounting frame (13) is fixedly connected to the right side of the front and rear ends of the operating platform (1); a second guide roller (14) is fixedly connected to the middle of the inner wall of the first mounting frame (13); a second mounting frame (15) is fixedly connected to the right end of the operating platform (1); a second motor (16) is fixedly installed at the rear end of the second mounting frame (15); an output end of the second motor (16) passes through the second mounting frame (15) and is fixedly connected to a winding roller (17).

2. A cooling mechanism for a film blowing machine according to claim 1, characterized in that: The internal cooling mechanism (4) comprises an extruder (41), the top of the extruder (41) is fixedly connected to a fixing ring (42), the bottom of the fixing ring (42) is fixedly connected to four air outlet pipes (43) in a circular array, the outer surface of the fixing ring (42) is fixedly connected to four connecting plates (44) in a circular array, the upper part of the inner cavity of the fixing ring (42) is fixedly connected to a protective ring (45), and the middle part of the inner wall of the fixing ring (42) is provided with an air outlet (46).

3. A cooling mechanism for a film blowing machine according to claim 2, characterized in that: The top of the extruder (41) is located on the inner wall of the fixing ring (42), the connecting plate (44) is fixedly connected to the top of the equipment frame (2), and the end of the air outlet pipe (43) away from the fixing ring (42) is fixedly connected to the outlet of the cooling fan (3).

4. A cooling mechanism for a film blowing machine according to claim 1, characterized in that: The external cooling mechanism (9) comprises a condensation water tank (91) and two hollow connecting rods (92); the right end of the condensation water tank (91) is fixedly connected to a water outlet pipe (93) and a return pipe (94), respectively; the outer surfaces of the two hollow connecting rods (92) are rotatably connected to a temperature conducting roller (95); and the ends of the two hollow connecting rods (92) away from the condensation water tank (91) are fixedly connected to a circulation pipe (96).

5. A cooling mechanism for a film blowing machine according to claim 4, characterized in that: One end of the water outlet pipe (93) and the return pipe (94) away from the condensation water tank (91) is fixedly connected to one end of two hollow connecting rods (92) respectively.

6. A cooling mechanism for a film blowing machine according to claim 4, characterized in that: The water outlet pipe (93) passes through the hollow connecting rod (92) and is connected to the circulation pipe (96), and the two hollow connecting rods (92) are fixedly connected to one side of the inner wall of the second support frame (10).

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