Food packaging film production drying equipment

Abstract

The utility model belongs to the technical field of drying, particularly relates to food packaging film production drying equipment, and aims to solve the problems that the distance between an upper drying box and a lower drying box and a packaging film cannot be adjusted, the drying effect can be influenced when the distance is too close or too far, and feeding is not convenient enough. A feeding port for feeding and a discharging port for discharging are formed in the two sides of the drying box respectively, and a plurality of guide rollers for guiding a packaging film are arranged in the drying box. A lower blowing box and an upper blowing box are arranged in the drying box, the lower blowing box and the upper blowing box are located on the upper face and the lower face of a packaging film, a filtering box is arranged on one side of the drying box, and an air heater is arranged at the air inlet end of the filtering box. And in the closing process, the lower air blowing box and the upper air blowing box can be fixed, operation and adjustment are convenient, and use by workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of drying, in particular to food packaging film production and drying equipment. Background Art

[0002] As consumers pay more and more attention to food safety and packaging quality, the market demand for high-quality, low-residue food packaging films is also increasing. Drying is one of the important means to improve the quality of packaging films. One of the main purposes of the drying process is to remove these residual solvents to ensure that the packaging film meets food safety standards and avoids food contamination caused by solvent residues. Drying can also make the layers of the packaging film bond more tightly, improving the overall strength and stability of the packaging film, which is crucial for food packaging because the packaging film needs to have certain mechanical properties and barrier properties to protect food from the influence of the external environment.

[0003] After searching, the utility model with announcement number CN220489617U discloses a drying device for producing food packaging film. The drying device has the following disadvantages during use:

[0004] The distance between the upper and lower drying boxes and the packaging film cannot be adjusted during use. If it is too close or too far, the drying effect will be affected, making it inconvenient to use.

[0005] Moreover, the packaging film is soft during use, making it inconvenient to pass through the feed port and the discharge port, making loading inconvenient. Summary of the Invention

[0006] The purpose of the utility model is to solve the shortcomings of the prior art that the distance between the upper and lower drying boxes and the packaging film cannot be adjusted, too close or too far will affect the drying effect, and loading is not convenient, and the food packaging film production drying equipment is proposed.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] The drying equipment for producing food packaging film comprises a drying box, wherein a feeding port for feeding and a discharging port for discharging are respectively provided on both sides of the drying box, and a plurality of guide rollers for guiding the packaging film are provided in the drying box;

[0009] The drying box is provided with a lower blowing air box and an upper blowing air box, the air outlets of the lower blowing air box and the upper blowing air box are respectively located on the upper and lower sides of the packaging film. A filter box is provided on one side of the drying box, and a hot air blower is provided at the air inlet end of the filter box. The air outlet end of the filter box is connected to the corresponding lower blowing air box and upper blowing air box through a connecting pipe, so as to dry the upper and lower sides of the packaging film.

[0010] An adjustment mechanism is provided on the drying box and is used to adjust the distance between the lower blowing box and the upper blowing box and the packaging film;

[0011] A first rectangular opening for loading materials is opened on one side of the drying box, and a side plate for sealing the first rectangular opening is hingedly connected to one side of the drying box, and the top end of the side plate is clamped with the drying box;

[0012] The cleaning component is arranged in the drying box and is located on one side of the feed port, and is used to clean the surface of the packaging film.

[0013] In a possible design, the adjustment mechanism includes two second rectangular openings opened on one side of the drying box, a nut block is slidably provided in the second rectangular opening, two rotating seats are fixedly provided on one side of the drying box, and the same bidirectional screw is rotatably provided between the two rotating seats, and the two nut blocks are respectively fixedly connected to the lower blowing box and the upper blowing box, and the lower blowing box and the upper blowing box are both slidably provided in the drying box through guide rails.

[0014] In one possible design, a fixing block is fixed on the top of the side panel, a waist-shaped hole is opened on the top of the fixing block, and a fixing bolt is threaded through the top of the drying box. The bottom of the large end of the fixing bolt is in conflict with the fixing block, which is used to fix the side panel on the drying box.

[0015] In one possible design, the cleaning assembly includes two cleaning rollers that rotate throughout the drying box, the packaging film is located between the two cleaning rollers, the outer walls of the two cleaning rollers are fixedly sleeved with meshing gears, and a motor is fixedly provided on one side of the drying box, and the output end of the motor is fixedly connected to one of the cleaning rollers.

[0016] In a possible design, two connecting tubes are provided through one side of the side panel, an extrusion block is provided for sliding inside the connecting tube, a spring is provided inside the connecting tube, and the two ends of the spring are fixedly connected to one side of the extrusion block and the inner wall of one side of the connecting tube respectively. After the side panel is closed, the extrusion block can resist the corresponding lower blowing box and upper blowing box.

[0017] In a possible design, two baffles are fixed on both sides of the drying box. The two baffles are set in a sleeping eight shape and are located on one side of the corresponding feed port and discharge port to prevent external dust from entering the drying box.

[0018] In this application, when in use, the fixing bolt is rotated so that the top end of the fixing bolt is away from the fixing block, and then the side plate is pulled outward to open the feed port, and the packaging film is passed through the feed port into the drying box, and passes through multiple guide rollers and out of the discharge port, and one end is fixed on the winding roller;

[0019] After loading is completed, close the side plate and place the fixing bolt in the waist-shaped hole. Then rotate the fixing bolt so that the top of the fixing bolt contacts the fixing block to fix the side plate. During the closing process, the extrusion block can contact the corresponding lower and upper blowing bellows under the action of the spring.

[0020] Then start the hot air blower to blow air into the filter box. After being filtered by the filter box, the air enters the lower blowing box and the upper blowing box through two connecting pipes, and blows towards the packaging film to dry it.

[0021] At the same time, the winding roller is started to rewind and drive the packaging film to move between the feed port and the discharge port, and the motor is started to drive the cleaning roller below to rotate. During the rotation of the cleaning roller, the two meshing gears can drive the cleaning roller above to rotate in the opposite direction to clean the upper and lower surfaces of the packaging film;

[0022] When it is necessary to adjust the distance between the lower blowing box and the upper blowing box and the packaging film, turn the fixing bolt and open the side panel to move the extrusion block away from the lower blowing box and the upper blowing box, and then turn the bidirectional screw. The rotation of the bidirectional screw can drive the two nut blocks to move relative to each other, and the movement of the nut block can drive the corresponding lower blowing box and the upper blowing box to move, so that the distance between the lower blowing box and the upper blowing box and the packaging film can be adjusted at the same time. After the adjustment is completed, close the side panel and continue drying.

[0023] Beneficial effects:

[0024] In the utility model, the food packaging film production and drying equipment is provided with a lower blowing air box and an upper blowing air box in a drying box, and a hot air blower is used to supply hot air to the two blowing boxes through a filter box, thereby achieving simultaneous drying of the upper and lower surfaces of the packaging film. The setting of the adjustment mechanism allows the user to flexibly adjust the distance between the lower blowing air box and the upper blowing air box and the packaging film according to the thickness of the packaging film or drying requirements. This adjustability enables the equipment to adapt to packaging films of different specifications and types, effectively avoiding deformation or quality problems of the packaging film caused by uneven heating, and improving the versatility and adaptability of the equipment.

[0025] In the present invention, the food packaging film production and drying equipment, through the fixing blocks and fixing bolts provided on the side panels and the extrusion blocks and springs in the connecting cylinder, not only strengthens the connection strength between the side panels and the drying box, but also ensures that the side panels can fit tightly against the drying box after closing. At the same time, it can also fix the adjusted down-blowing air box and up-blowing air box, and prevent hot air leakage and external dust intrusion. At the same time, these designs also improve the stability and safety of the equipment during operation.

[0026] In the utility model, the side panels are set so that the drying box can be opened, making it convenient to put the packaging film into the drying box. In addition, the lower blowing box and the upper blowing box can be fixed during the closing process, making the operation and adjustment convenient and easy for workers to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional structural diagram of the food packaging film production and drying equipment proposed in this utility model;

[0028] Figure 2 This is a three-dimensional structural diagram from another perspective of the food packaging film production and drying equipment proposed by the present invention;

[0029] Figure 3 This is a schematic diagram of the side panel opening structure of the food packaging film production and drying equipment proposed by the present invention;

[0030] Figure 4 This is a schematic cross-sectional view of the food packaging film production and drying equipment proposed in the present invention;

[0031] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of part A in the middle.

[0032] In the figure: 1. Drying box; 2. Feed inlet; 3. Baffle; 4. First rectangular opening; 5. Side panel; 6. Fixing block; 7. Fixing bolt; 8. Cleaning roller; 9. Gear; 10. Motor; 11. Filter box; 12. Hot air blower; 13. Connecting pipe; 14. Second rectangular opening; 15. Nut block; 16. Rotating seat; 17. Bidirectional screw; 18. Guide roller; 19. Downward blowing bellows; 20. Upward blowing bellows; 21. Discharge port; 22. Waist-shaped hole; 23. Connecting cylinder; 24. Spring; 25. Extrusion block. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Example 1

[0035] Reference Figure 1-Figure 5 The drying equipment includes: a drying box 1 and various components inside and outside it. The drying box 1 is a rectangular box structure with sufficient volume to accommodate the packaging film for drying inside it.

[0036] A feed port 2 and a discharge port 21 are respectively provided on both sides of the drying box 1. The feed port 2 is used to introduce the packaging film to be dried into the drying box 1, and the discharge port 21 is used to discharge the dried packaging film. In order to ensure the smooth movement of the packaging film in the drying box 1, a plurality of guide rollers 18 are provided inside the drying box 1. These guide rollers 18 are distributed along the running direction of the packaging film to guide the packaging film and prevent it from deflecting or wrinkling.

[0037] A down blow box 19 and an up blow box 20 are provided in the drying box 1, which are located below and above the packaging film respectively. The two blow boxes are connected to the filter box 11 arranged on one side of the drying box 1 through a connecting pipe 13. The filter box 11 adopts the disposable high-efficiency air filter box in the patent document CN217068154U. A hot air blower 12 is provided at the air inlet end of the filter box 11. The hot air blower 12 adopts the dry hot air pump assembly in the patent document CN220489617U, which is used to blow hot air into the filter box 11. After being filtered by the filter box 11, the hot air enters the down blow box 19 and the up blow box 20 respectively through the connecting pipe 13, and evenly dries the upper and lower surfaces of the packaging film.

[0038] In order to adjust the distance between the lower blowing box 19 and the upper blowing box 20 and the packaging film to adapt to packaging films of different thicknesses, an adjustment mechanism is provided on the drying box 1. The adjustment mechanism includes two second rectangular openings 14 opened on one side of the drying box 1. A nut block 15 is slidably provided in the second rectangular opening 14. Two rotating seats 16 are also fixedly provided on one side of the drying box 1. The same bidirectional screw 17 is rotatably provided between the two rotating seats 16. The two nut blocks 15 are fixedly connected to the lower blowing box 19 and the upper blowing box 20 respectively. The blowing box 19 and the upper blowing box 20 are both slidably arranged in the drying box 1 through guide rails. When it is necessary to adjust the distance between the blowing box and the packaging film, it is only necessary to rotate the bidirectional screw 17 to drive the blowing box up and down through the nut block 15 to adjust the distance. Before and after the adjustment, the lower blowing box 19 and the upper blowing box 20 can seal the corresponding second rectangular opening 14.

[0039] In order to facilitate loading, a first rectangular opening 4 is provided on one side of the drying box 1. The size of the first rectangular opening 4 is sufficient to allow the packaging film to pass through. At the same time, a side panel 5 is hinged on one side of the drying box 1 for sealing the first rectangular opening 4. The top of the side panel 5 is fixed to the drying box 1 by a snap connection to ensure the reliability of the seal. In addition, a fixing block 6 is fixed to the top of the side panel 5. A waist-shaped hole 22 is provided on the top of the fixing block 6. A fixing bolt 7 is threaded through the top of the drying box 1. When the side panel 5 is closed and snapped, the fixing bolt 7 is rotated so that its top is in conflict with the fixing block 6, so that the side panel 5 can be firmly fixed to the drying box 1.

[0040] The present application can be used in the field of packaging film processing, and can also be used in other fields applicable to the present application.

[0041] Example 2

[0042] refer to Figure 1-Figure 5 , improved on the basis of Example 1: food packaging film production and drying equipment, which is applied to the field of packaging film processing. In order to ensure the cleanliness of the packaging film surface, this embodiment also provides a cleaning component in the drying box 1, and the cleaning component includes two cleaning rollers 8, which are rotatably arranged on one side of the drying box 1 and are located on one side of the feed port 2. After entering the drying box 1, the packaging film will first pass between the two cleaning rollers 8. The outer walls of the two cleaning rollers 8 are fixedly sleeved with meshing gears 9. One side of the drying box 1 is fixedly provided with a motor 10. The output end of the motor 10 is fixedly connected to one of the cleaning rollers 8. When the motor 10 is started, it will drive the cleaning roller 8 connected thereto to rotate, and then drive the other cleaning roller 8 to rotate in the opposite direction through the meshing gear 9. The rotation of the two cleaning rollers 8 will clean the surface of the packaging film and remove dust and impurities thereon.

[0043] In order to prevent external dust from entering the drying box 1 and affecting the drying effect and the quality of the packaging film, this embodiment also has two baffles 3 fixed on both sides of the drying box 1. The two baffles 3 are set in a sleeping eight shape and are respectively located on one side of the feed port 2 and the discharge port 21. The setting of the baffle 3 can effectively prevent external dust from entering the drying box 1, thereby ensuring the cleanliness of the drying environment.

[0044] In order to further fix the lower blowing bellows 19 and the upper blowing bellows 20, two connecting tubes 23 are provided through one side of the side panel 5. An extrusion block 25 is provided for sliding inside the connecting tube 23. A spring 24 is provided inside the connecting tube 23. The two ends of the spring 24 are respectively fixedly connected to one side of the extrusion block 25 and the inner wall of one side of the connecting tube 23. After the side panel 5 is closed, the extrusion block 25 can resist the corresponding lower blowing bellows 19 and upper blowing bellows 20.

[0045] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor 10 and the hot air blower 12 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0046] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Food packaging film production and drying equipment, characterized in that, The drying box (1) comprises a drying box (1), wherein a feeding port (2) for feeding materials and a discharging port (21) for discharging materials are respectively provided on both sides of the drying box (1), and a plurality of guide rollers (18) for guiding the packaging film are provided in the drying box (1); The drying box (1) is provided with a down-blowing air box (19) and an up-blowing air box (20), the air outlets of the down-blowing air box (19) and the up-blowing air box (20) are respectively located on the upper and lower sides of the packaging film, a filter box (11) is provided on one side of the drying box (1), a hot air blower (12) is provided at the air inlet end of the filter box (11), and the air outlet end of the filter box (11) is connected to the corresponding down-blowing air box (19) and the up-blowing air box (20) through a connecting pipe (13), so as to dry the upper and lower sides of the packaging film; An adjustment mechanism, provided on the drying box (1), for adjusting the distance between the lower blowing box (19) and the upper blowing box (20) and the packaging film; A first rectangular opening (4) for loading materials is provided on one side of the drying box (1), and a side plate (5) for sealing the first rectangular opening (4) is hingedly connected to one side of the drying box (1), and the top end of the side plate (5) is snap-connected to the drying box (1); A cleaning component is arranged in the drying box (1) and located on one side of the feed port (2), and is used to clean the surface of the packaging film.

2. The food packaging film production and drying equipment according to claim 1, characterized in that: The adjustment mechanism comprises two second rectangular openings (14) opened on one side of the drying box (1), a nut block (15) is slidably provided in the second rectangular openings (14), two rotating seats (16) are fixedly provided on one side of the drying box (1), a same bidirectional screw (17) is rotatably provided between the two rotating seats (16), the two nut blocks (15) are respectively fixedly connected to the lower blowing box (19) and the upper blowing box (20), and the lower blowing box (19) and the upper blowing box (20) are both slidably provided in the drying box (1) via guide rails.

3. The food packaging film production and drying equipment according to claim 1, characterized in that: A fixing block (6) is fixedly provided on the top of the side panel (5), and a waist-shaped hole (22) is opened on the top of the fixing block (6). A fixing bolt (7) is threadedly provided through the top of the drying box (1), and the bottom of the large end of the fixing bolt (7) contacts the fixing block (6) for fixing the side panel (5) on the drying box (1).

4. The food packaging film production and drying equipment according to claim 1, characterized in that: The cleaning assembly comprises two cleaning rollers (8) which are arranged to rotate through the interior of the drying box (1), the packaging film is located between the two cleaning rollers (8), the outer walls of the two cleaning rollers (8) are fixedly sleeved with meshing gears (9), a motor (10) is fixedly provided on one side of the drying box (1), and the output end of the motor (10) is fixedly connected to one of the cleaning rollers (8).

5. The food packaging film production and drying equipment according to claim 2, characterized in that: Two connecting cylinders (23) are provided through one side of the side plate (5), and an extrusion block (25) is provided inside the connecting cylinder (23) for sliding. A spring (24) is provided inside the connecting cylinder (23), and two ends of the spring (24) are fixedly connected to one side of the extrusion block (25) and the inner wall of one side of the connecting cylinder (23), respectively. When the side plate (5) is closed, the extrusion block (25) can contact the corresponding lower blowing box (19) and upper blowing box (20).

6. The food packaging film production and drying equipment according to any one of claims 1 to 5, characterized in that: Two baffles (3) are fixedly provided on both sides of the drying box (1). The two baffles (3) are arranged in a sleeping eight shape and are located on one side of the corresponding feed port (2) and discharge port (21) to prevent external dust from entering the drying box (1).

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