A device for removing foreign matter from a food bag roll film

Abstract

The utility model relates to food bag roll film technical field, concretely to a device for removing foreign matter of food bag roll film, include: roll film unit, roll film unit includes roll film frame, roll film dynamic roller, roll film fixed roller, pay off roll and guide roller, pay off roll is fixed in the top of roll film frame, and the guide roller is installed in the bottom of roll film dynamic roller in roll film frame, and roll film dynamic roller and roll film fixed roller are all installed in the one side of guide roller in roll film frame, cleaning assembly is installed in the one side of guide roller, and cleaning assembly includes the fixed plate of L type, fixed frame, non - woven cloth wiping head and liquid storage container, and the both inboard of fixed plate are all fixed with fixed frame, and non - woven cloth wiping head is installed on fixed frame and can continue with guide roller contact, and liquid storage container is installed on the outside of fixed frame, and liquid storage container can be communicated with the non - woven cloth wiping head in the bottom. The utility model discloses through non - woven cloth wiping head in cleaning assembly, the guide roller is cleaned continuously, removes dust, hair, plastic chippings and other impurities in advance, avoids the foreign matter and is pressed into roll film.

Description

Technical Field

[0001] This utility model relates to the field of food bag roll film technology, specifically a device for removing foreign matter from food bag roll film. Background Technology

[0002] Food packaging bags are thin-film containers that come into direct contact with food and are used to hold and protect it.

[0003] The existing food packaging roll film is prone to adhering to a certain amount of foreign matter during the production process. These foreign matter on the food packaging can enter the food, thus affecting product quality and causing foreign matter contamination. This cannot meet the daily production needs of food packaging roll film. Based on the above problems, the existing patent publication number CN 223250096U discloses a device for removing foreign matter from food packaging roll film. Through a conveyor frame, ventilation frame, chip removal frame, dustproof net, air blowing and static elimination unit, film pulling frame, film releasing unit, guide cover, roll film frame, roll film cover and exhaust guide frame, the equipment can perform foreign matter removal in the production of food packaging roll film.

[0004] However, when implementing the aforementioned device for removing foreign objects from food bag roll film, it was found that at least the following problems still exist: during the film rolling process, dust, hair from the environment, and plastic debris (such as scraps from slitting) may adhere to the roller surface. If not cleaned for a long time, these impurities are easily "pressed" into the roll film surface or trapped between the film layers, causing the roll film to carry foreign objects, which can easily contaminate the food after bag making. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a device for removing foreign objects from food bag roll film, thus solving the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides a device for removing foreign matter from food bag roll film, comprising:

[0009] The film winding unit includes a film winding frame, a moving film winding roller, a fixed film winding roller, an unwinding roller, and a guide roller. The unwinding roller is fixed on the top of the film winding frame, and the guide roller is installed on the film winding frame at the bottom of the moving film winding roller. Both the moving film winding roller and the fixed film winding roller are installed on the side of the film winding frame located on the guide roller.

[0010] The cleaning assembly is installed on one side of the guide roller. The cleaning assembly includes an L-shaped fixing plate, a fixing frame, a non-woven fabric wiping head, and a liquid storage container. The fixing frame is fixed on both inner sides of the fixing plate. The non-woven fabric wiping head is installed on the fixing frame and can continuously contact the guide roller. The liquid storage container is installed on the outer side of the fixing frame and can communicate with a non-woven fabric wiping head located at the bottom.

[0011] Optionally, a support frame and a scraper are fixed at the corner of the fixed plate. The scraper is fixed on the support frame and can continuously scrape off residual cleaning liquid on the guide roller.

[0012] Optionally, the scraper has three parts, and the scraper is made of silicone.

[0013] Optionally, both the support frame and the fixing frame are fixed to the fixing plate by bolting.

[0014] Optionally, the nonwoven fabric wiping head is tilted in the rotation direction of the guide roller to increase the contact area between the nonwoven fabric wiping head and the guide roller.

[0015] Optionally, the film winding roller is slidably connected between the film winding frames and is driven up and down synchronously by two electric push rods.

[0016] Optionally, the moving film roll, the stationary film roll, the unwind roll, and the guide roll are all covered with a vulcanized rubber outer layer.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a device for removing foreign objects from food bag roll film, which has the following beneficial effects:

[0019] 1. This utility model continuously cleans the guide rollers by using non-woven fabric wipes in the cleaning component, removing impurities such as dust, hair, and plastic debris in advance, preventing foreign objects from being pressed into the film roll, cutting off the pollution chain of "roller-film roll-food" at the source, and is compatible with food-grade cleaning materials, with no risk of chemical residue. It effectively solves the problem in the prior art where impurities are easily "pressed into" the surface of the film roll or sandwiched between film layers, causing the film roll to carry foreign objects, which can still easily contaminate food after bag making.

[0020] 2. This utility model has a support frame and a scraper fixed at the corner of the fixed plate. The scraper is fixed on the support frame and can continuously scrape off the residual cleaning liquid on the guide roller. The scraper can scrape off the small amount of cleaning liquid remaining on the surface of the guide roller after it has been cleaned by the non-woven cloth wipe head in real time, preventing the liquid from being transferred to the roll film as the guide roller rotates, and avoiding problems such as the roll film becoming damp, delaminating or the printed pattern smudging due to liquid contamination.

[0021] 3. By bolting the support frame and the fixed frame to the fixed plate, this utility model makes it convenient to replace worn silicone scrapers, non-woven cloth wipe heads, or clean the inside of components, reducing downtime for maintenance and improving equipment operation and maintenance efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 A partial structural schematic diagram of this utility model is shown;

[0024] Figure 3 A side view of the cleaning component is shown.

[0025] Figure 4 It shows Figure 1 A schematic diagram of the structure viewed from below.

[0026] In the diagram: 1. Film roll holder; 2. Moving film roll roller; 3. Fixed film roll roller; 4. Unwind roller; 5. Guide roller; 6. Fixing plate; 7. Fixing frame; 8. Non-woven fabric wiper head; 9. Liquid storage container; 10. Support frame; 11. Scraper; 12. Electric push rod; 13. Rubber outer layer. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example: Please refer to Figures 1 to 4 According to an embodiment of this utility model, a technical solution is provided: a device for removing foreign objects from food bag roll film, comprising: a roll film unit, the roll film unit including a roll film frame 1, a roll film moving roller 2, a roll film stationary roller 3, an unrolling roller 4, and a guide roller 5, the unrolling roller 4 being fixed to the top of the roll film frame 1, the guide roller 5 being installed on the roll film frame 1 at the bottom of the roll film moving roller 2, the roll film moving roller 2 and the roll film stationary roller 3 being installed on the roll film frame 1 on one side of the guide roller 5; a cleaning component, which is installed on one side of the guide roller 5, the cleaning component including an L-shaped fixing plate 6, a fixing frame 7, a non-woven fabric wiping head 8, and a liquid storage container 9, the fixing frame 7 being fixed on both inner sides of the fixing plate 6, the non-woven fabric wiping head 8 being installed on the fixing frame 7 and continuously in contact with the guide roller 5, the liquid storage container 9 being installed on the outer side of the fixing frame 7, and the liquid storage container 9 being able to communicate with a non-woven fabric wiping head 8 located at the bottom.

[0029] The aforementioned device for removing foreign objects from food bag roll film continuously cleans the guide roller 5 through the non-woven fabric wiping head 8 in the cleaning component, removing impurities such as dust, hair, and plastic fragments in advance, preventing foreign objects from being pressed into the roll film, cutting off the pollution chain of "roller-roll film-food" at the source, and can be used with food-grade cleaning materials, with no risk of chemical residue. It effectively solves the problem in the prior art where impurities are easily "pressed into" the surface of the roll film or sandwiched between film layers, causing the roll film to carry foreign objects, which can still easily contaminate food after bag making.

[0030] A support frame 10 and a scraper 11 are fixed at the corner of the fixed plate 6. The scraper 11 is fixed on the support frame 10. The scraper 11 can continuously scrape off the residual cleaning liquid on the guide roller 5. The scraper 11 can scrape off the small amount of cleaning liquid remaining on the surface of the guide roller 5 after it has been cleaned by the non-woven cloth wipe head 8 in real time, preventing the liquid from being transferred to the roll film as the guide roller 5 rotates, and avoiding problems such as the roll film becoming damp, delaminating, or the printed pattern smudging due to liquid contamination.

[0031] The scraper 11 is provided in three pieces and is made of silicone. The three scrapers 11 form a "multi-layer interception" which can scrape off the residual cleaning liquid on the surface of the guide roller 5 layer by layer. Compared with a single scraper 11, the amount of liquid residue when the guide roller 5 rotates can be greatly reduced. At the same time, the silicone material is soft and elastic and will not scratch the surface of the guide roller 5 when it comes into contact with it.

[0032] By bolting the support frame 10 and the fixed frame 7 onto the fixed plate 6, the operation is convenient when replacing worn silicone scraper 11, non-woven cloth wiping head 8, or cleaning the inside of the components, which can reduce downtime maintenance time and improve equipment operation and maintenance efficiency.

[0033] The non-woven fabric wiping head 8 is tilted in the rotation direction of the guide roller 5, which increases the contact area between the non-woven fabric wiping head 8 and the guide roller 5. The non-woven fabric wiping head 8 is tilted along the rotation direction of the guide roller 5, which can naturally conform to the rotation trajectory of the guide roller 5 and greatly increase the contact area. Compared with vertical contact, the tilted design allows for more sufficient frictional contact between the wiping head and the guide roller 5, which can more thoroughly wipe the dust, debris and other foreign objects on the surface of the guide roller 5, reduce cleaning dead corners, and especially clean the residual impurities in the fine gaps or textures on the surface of the guide roller 5 more thoroughly.

[0034] The film-winding roller 2 is slidably connected between the film-winding frame 1 and is driven up and down synchronously by two electric push rods 12. The electric push rods 12 synchronously drive the film-winding roller 2 up and down, which can precisely control the pressing gap between the moving roller and the fixed roller. It can meet the gentle pressing requirements of thin film rolls (such as PE food preservation film) to avoid film stretching and damage, and can also adapt to the tight pressing of thick composite film rolls (such as aluminum-plastic composite film) to ensure that the transmission does not slip and improve the adaptability of film rolls of different specifications.

[0035] The film winding roller 2, film winding stationary roller 3, unwinding roller 4, and guide roller 5 are all wrapped with a vulcanized rubber outer layer 13. The vulcanized rubber outer layer 13 is soft and elastic, which can buffer pressure when in contact with the film and avoid scratches and indentations caused by direct contact with the metal roller (especially suitable for surface-sensitive films such as aluminized film and transparent PE film). At the same time, the high coefficient of friction of rubber can enhance the adhesion between the roller and the film and reduce surface scratches caused by film slippage.

[0036] Working principle:

[0037] S1, Film Release and Initial Guidance

[0038] The rolled food-grade raw material film is installed on the unwinding roller 4 at the top of the film roll frame 1. The unwinding roller 4 (with an outer layer of vulcanized rubber) rotates passively according to the subsequent transmission requirements, releasing the rolled film smoothly. The released rolled film first passes through the guide roller 5 (also with an outer layer of vulcanized rubber) at the bottom of the film roll frame 1. The guide roller 5 guides the rolled film to turn along the preset path through the high coefficient of friction and elasticity of the rubber outer layer 13, while avoiding scratches on the surface of the rolled film due to hard contact.

[0039] S2, guide roller 5 foreign object cleaning

[0040] The cleaning assembly on one side of the guide roller 5 starts working: the fixing frame 7 on the L-shaped fixing plate 6 (fixed by bolts, the position can be finely adjusted) drives the non-woven fabric wiping head 8 to continuously contact the surface of the guide roller 5, and the non-woven fabric wiping head 8 is tilted along the rotation direction of the guide roller 5, which greatly increases the contact area. During the rotation of the guide roller 5, the wiping head can thoroughly wipe away the dust, hair, plastic debris and other foreign objects adhering to its surface, preventing foreign objects from being transferred to the roll film with the guide roller 5 from the source; at the same time, the liquid storage container 9 (installed on the outside of the fixing frame 7) slowly delivers cleaning liquid (adapted to food-grade standards) to the bottom non-woven fabric wiping head 8 to soften sticky foreign objects (such as residual ink) and improve cleaning efficiency.

[0041] S3, residual liquid treatment of guide roller 5

[0042] After cleaning, a small amount of cleaning fluid may remain on the surface of the guide roller 5. At this time, the three silicone scrapers 11 on the support frame 10 (bolted and fixed) at the corner of the fixed plate 6 will start to function: the three scrapers 11 form a "multi-layer interception" and scrape off the residual fluid layer by layer as the guide roller 5 rotates. The soft and elastic silicone material can fit the arc surface of the guide roller 5, leaving no dead corners for cleaning. After the residual fluid is scraped off, the surface of the guide roller 5 remains dry and smooth, which not only prevents the cleaning fluid from transferring to the film roll and causing it to become damp and delaminate, but also prevents the residual fluid from changing the friction coefficient of the guide roller 5 and causing the film roll to deviate.

[0043] S4, Film winding stable transmission

[0044] The moving roller 2 is synchronously driven by two electric push rods 12 and can slide up and down to adjust its position, precisely controlling the pressing gap between it and the stationary roller. It can adapt to the thickness deviation of the film rolls (such as thin PE film and thick aluminum-plastic composite film) through the elasticity of the outer rubber layer 13, so as to achieve uniform pressing. This avoids film roll slippage (ensuring transmission efficiency) and also prevents the film roll from stretching and deforming due to excessive pressing. Finally, the film roll after stable transmission can enter the subsequent bag making process. The whole process is free of foreign objects and residual liquid contamination, meeting the safety and quality requirements of food packaging.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for removing foreign matter from food bag roll film, characterized in that, include: The film winding unit includes a film winding frame (1), a film winding moving roller (2), a film winding stationary roller (3), an unwinding roller (4), and a guide roller (5). The unwinding roller (4) is fixed on the top of the film winding frame (1), and the guide roller (5) is installed on the film winding frame (1) at the bottom of the film winding moving roller (2). The film winding moving roller (2) and the film winding stationary roller (3) are both installed on the side of the film winding frame (1) located on the guide roller (5). The cleaning assembly is installed on one side of the guide roller (5). The cleaning assembly includes an L-shaped fixing plate (6), a fixing frame (7), a non-woven fabric wiping head (8), and a liquid storage container (9). The fixing frame (7) is fixed on both inner sides of the fixing plate (6). The non-woven fabric wiping head (8) is installed on the fixing frame (7) and can continuously contact the guide roller (5). The liquid storage container (9) is installed on the outside of the fixing frame (7) and can communicate with a non-woven fabric wiping head (8) located at the bottom.

2. The device for removing foreign matter from food bag roll film according to claim 1, characterized in that: A support frame (10) and a scraper (11) are fixed at the corner of the fixed plate (6). The scraper (11) is fixed on the support frame (10) and can continuously scrape off the residual cleaning liquid on the guide roller (5).

3. The device for removing foreign matter from food bag roll film according to claim 2, characterized in that: The scraper (11) is provided in three pieces, and the scraper (11) is made of silicone.

4. The device for removing foreign matter from food bag roll film according to claim 2, characterized in that: Both the support frame (10) and the fixing frame (7) are bolted to the fixing plate (6).

5. The device for removing foreign matter from food bag roll film according to claim 1, characterized in that: The nonwoven fabric wiping head (8) is tilted in the rotation direction of the guide roller (5) to increase the contact area between the nonwoven fabric wiping head (8) and the guide roller (5).

6. The device for removing foreign matter from food bag roll film according to claim 1, characterized in that: The film-winding roller (2) is slidably connected between the film-winding frame (1) and is driven up and down synchronously by two electric push rods (12).

7. The device for removing foreign matter from food bag roll film according to any one of claims 1-6, characterized in that: The film winding moving roller (2), film winding stationary roller (3), unwinding roller (4) and guide roller (5) are all wrapped with a vulcanized rubber outer layer (13).

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