Space-saving film blowing machine

Abstract

The utility model relates to the field of film production, in particular to a space-saving film blowing machine which comprises a film blowing machine body, a machine frame is arranged on one side of a discharging port of the film blowing machine body, a cooling box is arranged on the machine frame, and a film inlet and a film outlet are sequentially formed in the two ends of the cooling box in the film conveying direction. A plurality of horizontal cooling rollers are rotationally connected into the cooling box, a plurality of driving motors used for driving the cooling rollers to rotate are arranged on the cooling box, and the cooling rollers are all arranged perpendicular to the film conveying direction and evenly distributed in the vertical direction. The equipment has the effect of reducing the field area occupied by the equipment.

Description

Technical Field

[0001] The present application relates to the field of film production, and in particular to a space-saving film blowing machine. Background Art

[0002] Whether the film thickness is uniform is an important indicator for detecting the quality of film products. Uneven film not only makes the strength of different parts of the film different, but also causes permanent deformation in the thicker parts of the film when the film is curled, thereby affecting the subsequent processing of the film and reducing the quality of the final product.

[0003] The utility model patent with publication number CN219788991U discloses a device for improving the uniformity of film thickness, which includes a film blowing machine main body, a frame is provided on one side of the discharge port of the film blowing machine main body, a horizontal heating roller is rotatably connected to the frame, the heating roller is arranged perpendicular to the film conveying direction, the heating roller is hollow, a heating tube is arranged inside the heating roller for heating the roller surface of the heating roller, a first drive motor is provided on the frame, the first drive motor is rotatably connected to one end of the heating roller and is used to drive the heating roller to rotate.

[0004] The multiple cooling rollers of the film blowing machine are arranged in sequence along the horizontal direction. As the number of cooling rollers increases, the total area occupied by the equipment will become larger and larger, and a larger area of ​​site will be occupied during production. Utility Model Content

[0005] In order to reduce the site area occupied by the equipment, the present application provides a space-saving film blowing machine.

[0006] The space-saving film blowing machine provided in this application adopts the following technical solution:

[0007] A space-saving film blowing machine comprises a film blowing machine body, a frame is provided on one side of the discharge port of the film blowing machine body, a cooling box is provided on the frame, a film inlet and a film outlet are sequentially opened at both ends of the cooling box along the film conveying direction, a plurality of horizontal cooling rollers are rotatably connected in the cooling box, a plurality of driving motors for driving the cooling rollers to rotate are provided on the cooling box, and the plurality of cooling rollers are all arranged perpendicular to the film conveying direction and evenly distributed in the vertical direction.

[0008] By adopting the above technical scheme, the film blown by the film blowing machine body enters the cooling box through the film inlet, and the film is cooled by multiple cooling rollers in turn. The temperatures of the multiple cooling rollers are reduced in turn along the film conveying direction, so that the temperature of the film drops more gradually. The multiple cooling rollers are arranged in the vertical direction, which saves more space than arranging them in the horizontal direction.

[0009] Optionally, a plurality of horizontal partitions are provided in the cooling box, and the plurality of partitions divide the internal space of the cooling box into a plurality of cavities arranged along the vertical direction. The plurality of cooling rollers correspond one-to-one to the plurality of cavities and are located in the corresponding cavities. A feed port for allowing the film to pass through is opened on the partitions.

[0010] By adopting the above technical solution, the partition plate divides the interior of the cooling box into multiple cavities, so that the film is cooled by only one cooling roller in each cavity, reducing the influence between different cooling rollers and making the temperature of the film drop more gradually.

[0011] Optionally, horizontal guide rollers are provided at both ends of the material passing port along the cloth conveying path.

[0012] By adopting the above technical solution, the setting of the guide roller plays a role in reducing the friction between the film and the partition plate, and plays a role in protecting the film.

[0013] Optionally, the cooling roller includes a cooling layer and a cooling layer, the cooling layer is cylindrical and horizontally connected to the cooling box, the cooling layer is cylindrical and is jacketed on the cooling layer, the cooling layer is connected to the driving motor, a condenser is provided in the cooling layer, a coolant inlet pipe and a coolant outlet pipe are provided at both ends of the condenser, the coolant inlet pipe and the end of the coolant outlet pipe away from the condenser are connected to the coolant storage tank, and a water pump is provided on the coolant inlet pipe.

[0014] By adopting the above technical scheme, the water pump transports the coolant in the coolant storage tank to the condenser through the coolant inlet pipe, the condenser cools the cooling layer, and after cooling, the coolant with higher temperature flows back to the coolant storage tank through the coolant outlet pipe for collection, the cooling layer cools the cooling layer, and the cooling layer cools the film. The flow rate of each water pump is set separately, so that multiple cooling layers can perform step-by-step cooling on the film, so that the temperature of the film gradually decreases, reducing the quality degradation of the film due to too fast cooling.

[0015] Optionally, a liquid outlet pipe and a liquid inlet pipe are provided on the coolant storage tank, the liquid outlet pipe is connected to a plurality of coolant inlet pipes, and the liquid inlet pipe is connected to a plurality of coolant outlet pipes.

[0016] By adopting the above technical solution, the coolant in the coolant storage tank flows into multiple coolant inlet pipes through the liquid outlet pipe, and the coolant in the multiple coolant inlet pipes flows into the corresponding condensing tubes for cooling. The coolant that has completed cooling flows into the same liquid inlet pipe through the coolant outlet pipe, so that one coolant storage tank can transport coolant to all condensing tubes, reducing the number of pipelines.

[0017] Optionally, a plurality of infrared sensors are provided in the cooling box, and the plurality of infrared sensors correspond one-to-one to a plurality of cooling layers and are used to measure the surface temperature of the corresponding cooling layers. The plurality of infrared sensors are electrically connected to a controller and send corresponding temperature values ​​to the controller. The controller is electrically connected to a plurality of water pumps and controls the corresponding water pumps to reduce the flow rate of the coolant when the temperature value is lower than a set value.

[0018] By adopting the above technical solution, when the temperature of a cooling layer is too low, the corresponding infrared sensor sends the temperature value to the controller. When the controller receives the temperature value lower than the set value, it controls the corresponding water pump to reduce the flow rate of the coolant. The decrease in the flow rate of the coolant reduces the cooling effect of the cooling layer, and the cooling effect of the corresponding cooling layer on the film is reduced, so that the step cooling of multiple cooling layers is smoother, reducing the degradation of film quality due to too rapid temperature drop.

[0019] Optionally, an internal gear is coaxially provided on one end of the cooling layer, a gear is coaxially provided on the transmission shaft of the driving motor, and the gear is meshed with the internal rack.

[0020] By adopting the above technical solution, the driving motor drives the gear to rotate. When the gear rotates, it drives the cooling layer to rotate through the engagement with the internal gear. When the cooling layer rotates, it drives the film to move and cool the film. This structure reduces the rotation of the cooling layer and plays a role in protecting the equipment.

[0021] Optionally, two limiting rings are coaxially provided on the transmission shaft of the driving motor, and the two limiting rings are respectively located on both sides of the axial direction of the gear, and a limiting space for locking the internal gear is formed between the two limiting rings.

[0022] By adopting the above technical solution, when the gear drives the internal gear to rotate, the internal gear is stuck in the limiting space between the two limiting rings. The two limiting rings fix the internal gear and reduce the occurrence of the gear and the internal gear being separated.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Multiple cooling rollers are arranged in the vertical direction, which saves more space than arranging them in sequence in the horizontal direction;

[0025] 2. The water pump transports the coolant in the coolant storage tank to the condenser through the coolant inlet pipe. The condenser cools the cooling layer, and the cooling layer cools the film through the cooling layer. Each water pump sets a flow rate separately, so that multiple cooling layers cool the film in steps, gradually reducing the temperature of the film and reducing the quality degradation of the film due to excessive cooling. ;

[0026] 3. The driving motor drives the cooling layer to rotate through the gears and the internal gears. The cooling layer is fixedly connected to the cooling box. This structure reduces the rotation of the cooling layer and plays a role in protecting the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a space-saving film blowing machine according to an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view of a cooling box of a space-saving film blowing machine according to an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of a connection method between a driving motor and a cooling layer of a space-saving film blowing machine according to an embodiment of the present application.

[0030] Figure 4 It is a cross-sectional view of a cooling roller of a space-saving film blowing machine according to an embodiment of the present application.

[0031] Figure 5 It is a schematic structural diagram of a water inlet pipe and a water outlet pipe of a space-saving film blowing machine according to an embodiment of the present application.

[0032] Explanation of the reference numerals in the accompanying drawings: 1. main body of the film blowing machine; 2. frame; 21. conveying roller; 3. cooling box; 32. film inlet; 33. film outlet; 34. controller; 35. infrared sensor; 36. partition plate; 361. feed port; 362. guide roller; 4. cooling roller; 41. cooling layer; 411. internal gear; 42. cooling layer; 5. driving motor; 51. gear; 52. limiting ring; 6. coolant storage tank; 61. liquid outlet pipe; 62. liquid inlet pipe; 7. condenser; 71. coolant inlet pipe; 72. coolant outlet pipe; 73. water pump. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The present application embodiment discloses a space-saving film blowing machine. Figure 1 A space-saving film blowing machine includes a film blowing machine body 1, a frame 2 is installed on one side of the discharge port of the film blowing machine body 1, and a conveying roller 21 and a cooling box 3 are sequentially installed on the frame 2 along the film conveying direction. The conveying roller 21 conveys the film blown by the film blowing machine body 1 to the cooling box 3 for cooling.

[0035] Reference Figure 1 as well as Figure 2The cooling box 3 is provided with film inlets 32 and film outlets 33 at both ends along the film conveying direction, and a plurality of horizontal partition plates 36 are fixedly connected in the cooling box 3. The plurality of partition plates 36 are sequentially distributed in the vertical direction so as to divide the interior of the cooling box 3 into a plurality of cavities. The plurality of partition plates 36 are provided with feed ports 361 penetrating the partition plates 36 in the vertical direction. The feed ports 361 are used for the film to pass through. The two ends of the feed ports 361 are rotatably connected with guide rollers 362, and the plurality of guide rollers 362 are arranged perpendicular to the film conveying direction. A cooling roller 4 for cooling the film is installed in each cavity. The multiple cooling rollers 4 are arranged parallel to the guide roller 362. The cooling roller 4 includes a cooling layer 42 and a cooling layer 41. The cooling layer 42 is cylindrical and fixedly connected to the inner wall of the cooling box 3. The cooling layer 41 is cylindrical and coaxially sleeved on the cooling layer 42. Multiple driving motors 5 are installed on the outer wall of the cooling box 3. The multiple driving motors 5 correspond to the multiple cooling layers 41 one by one and are used to drive the corresponding cooling layers 41 to rotate. When the cooling layer 41 rotates, it drives the film to move.

[0036] Reference Figure 1 , Figure 2 as well as Figure 3 A gear 51 and two limit rings 52 are coaxially fixedly connected to the transmission shaft of the driving motor 5. The two limit rings 52 are respectively located at the two ends of the circumference of the gear 51, and a limit space is formed between the two limit rings 52. An internal gear 411 is coaxially connected to one end of the cooling layer 41 close to the driving motor 5. The internal gear 411 is located in the limit space and meshing with the gear 51. The driving motor 5 drives the cooling layer 41 to rotate through the transmission of the gear 51 and the internal gear 411. The internal gear 411 is blocked by the limit space to reduce the occurrence of the internal gear 411 and the gear 51 being separated.

[0037] Reference Figure 2 , Figure 4 as well as Figure 5 The cooling layer 42 is hollow, and a serpentine condenser 7 is spirally arranged in the cooling layer 42. The two ends of the condenser 7 are respectively connected to a coolant inlet pipe 71 and a coolant outlet pipe 72. The coolant inlet pipe 71 and the coolant outlet pipe 72 both extend horizontally out of the cooling box 3. A coolant storage tank 6 is installed on one side of the film blowing machine body 1. An inlet pipe 62 and an outlet pipe 61 are installed on the side wall of the coolant storage tank 6. The outlet pipe 61 is connected to the lower end of the coolant storage tank 6, and the inlet pipe 62 is connected to the upper end of the coolant storage tank 6. The outlet pipe 61 is connected to multiple coolant inlet pipes 71, and the inlet pipe 62 is connected to multiple coolant outlet pipes 72.

[0038] Reference Figure 2 , Figure 4 as well as Figure 5A plurality of infrared sensors 35 are installed on the inner wall of the cooling box 3. The plurality of infrared sensors 35 correspond to the plurality of cooling layers 41 one by one and are used to measure the surface temperature of the corresponding cooling layers 41. The plurality of infrared sensors 35 are electrically connected to the same controller 34. The controller 34 is installed on the outer wall of the cooling box 3. The controller 34 is electrically connected to the plurality of water pumps 73. When the temperature value delivered by the infrared sensor 35 is lower than the set value, the controller 34 controls the corresponding water pump 73 to reduce the flow rate of the coolant, so that the cooling effect of the cooling layer 41 decreases, thereby making the step cooling of the plurality of cooling layers 41 smoother, thereby reducing the degradation of the film quality due to the excessively rapid temperature drop.

[0039] The implementation principle of a space-saving film blowing machine in an embodiment of the present application is as follows: the film blown by the film blowing machine body 1 is conveyed to the cooling box 3 through the conveying roller 21 via the film inlet 32 ​​on the cooling box 3 for cooling, and the film is gradually cooled by the cooling roller 4 in each cavity in turn. The temperatures of the multiple cooling rollers 4 are successively reduced along the film conveying direction, so that the temperature drop of the film is relatively gentle, thereby improving the final product quality. The multiple cooling rollers 4 are arranged in the vertical direction, which saves more space than arranging them in sequence in the horizontal direction. The partition plates 36 separate the cavities so that the film is cooled by only one cooling roller 4 in each cavity, thereby reducing the influence between different cooling rollers 4.

[0040] The water pump 73 transports the coolant in the coolant storage tank 6 through the liquid outlet pipe 61 and the coolant inlet pipe 71 to the condenser 7, and the condenser 7 cools the cooling layer 42. After the cooling is completed, the coolant with a higher temperature flows back to the cooling liquid storage tank 6 through the coolant outlet pipe 72 for collection, and the cooling layer 42 cools the cooling layer 41, and the cooling layer 41 cools the film. Each water pump 73 is set with a separate flow rate, so that multiple cooling layers 41 perform step-by-step cooling on the film, so that the temperature of the film gradually decreases, and the quality degradation of the film due to excessively rapid cooling is reduced. When the temperature of a cooling layer 41 is too low, the infrared sensor 35 sends the temperature value to the controller 34. After receiving the temperature lower than the set value, the controller 34 controls the corresponding water pump 73 to reduce the flow rate of the coolant, so that the cooling effect of the cooling layer 41 is reduced, so that the step-by-step cooling of the multiple cooling layers 41 is relatively gentle, and the quality degradation of the film due to excessively rapid temperature reduction is reduced.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A space-saving film blowing machine, characterized in that: The invention comprises a film blowing machine body (1), a frame (2) is provided on one side of a material outlet of the film blowing machine body (1), a cooling box (3) is provided on the frame (2), a film inlet (32) and a film outlet (33) are sequentially opened at two ends of the cooling box (3) along the film conveying direction, a plurality of horizontal cooling rollers (4) are rotatably connected in the cooling box (3), a plurality of driving motors (5) for driving the cooling rollers (4) to rotate are provided on the cooling box (3), and the plurality of cooling rollers (4) are all arranged perpendicular to the film conveying direction and evenly distributed in the vertical direction.

2. A space-saving film blowing machine according to claim 1, characterized in that: A plurality of horizontal partition plates (36) are provided in the cooling box (3), and the plurality of partition plates (36) divide the internal space of the cooling box (3) into a plurality of cavities arranged in a vertical direction. The plurality of cooling rollers (4) correspond one-to-one to the plurality of cavities and are located in the corresponding cavities. A material passage port (361) for allowing a film to pass through is provided on the partition plate (36).

3. A space-saving film blowing machine according to claim 2, characterized in that: Horizontal guide rollers (362) are provided at both ends of the material transfer port (361) along the cloth conveying path.

4. A space-saving film blowing machine according to claim 1, characterized in that: The cooling roller (4) comprises a cooling layer (42) and a cooling layer (41); the cooling layer (42) is cylindrical and horizontally connected to the cooling box (3); the cooling layer (41) is cylindrical and is jacketed on the cooling layer (42); the cooling layer (41) is connected to the driving motor (5); a condenser (7) is provided in the cooling layer (42); two ends of the condenser (7) are respectively provided with a coolant inlet pipe (71) and a coolant outlet pipe (72); the ends of the coolant inlet pipe (71) and the coolant outlet pipe (72) away from the condenser (7) are both connected to a coolant storage tank (6); and a water pump (73) is provided on the coolant inlet pipe (71).

5. A space-saving film blowing machine according to claim 4, characterized in that: The coolant storage tank (6) is provided with a liquid outlet pipe (61) and a liquid inlet pipe (62); the liquid outlet pipe (61) is connected to a plurality of coolant inlet pipes (71); and the liquid inlet pipe (62) is connected to a plurality of coolant outlet pipes (72).

6. A space-saving film blowing machine according to claim 4, characterized in that: A plurality of infrared sensors (35) are provided in the cooling box (3), and the plurality of infrared sensors (35) correspond one-to-one to the plurality of cooling layers (41) and are used to measure the surface temperature of the corresponding cooling layers (41). The plurality of infrared sensors (35) are electrically connected to a controller (34) and send corresponding temperature values ​​to the controller (34). The controller (34) is electrically connected to a plurality of water pumps (73) and controls the corresponding water pumps (73) to reduce the flow rate of the coolant when the temperature value is lower than a set value.

7. A space-saving film blowing machine according to claim 4, characterized in that: An internal gear (411) is coaxially disposed on one end of the cooling layer (42), a gear (51) is coaxially disposed on the transmission shaft of the driving motor (5), and the gear (51) is meshed with the internal gear (411).

8. A space-saving film blowing machine according to claim 7, characterized in that: Two limiting rings (52) are coaxially disposed on the transmission shaft of the driving motor (5), the two limiting rings (52) are respectively located on two sides of the axial direction of the gear (51), and a limiting space for locking the internal gear (411) is formed between the two limiting rings (52).

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