Coffee bean packaging equipment

Abstract

The coffee bean packaging equipment is characterized in that a forming film guide piece is in an inverted conical funnel shape and is located at the uppermost portion, a film rolling edge folding device is located below the forming film guide piece, a forming guide pipe is a hollow columnar guide pipe, the top of the forming guide pipe is connected with the bottom of the forming film guide piece, and the bottom of the forming guide pipe is connected with the top of a flat mouth device; the dot-matrix type vertical sealing device is located on the outer side of the forming guide pipe, the dot-matrix type transverse sealing device is located below the flat mouth device, the nitrogen filling pipe is a hollow pipe, the nitrogen filling pipe stretches into and penetrates into the forming guide pipe from the upper portion of the forming guide film piece, the bottom end of the nitrogen filling pipe reaches the bottom of the forming guide pipe, and the cutter is located at the position, with the preset distance, below the dot-matrix type transverse sealing device. By the adoption of the technical scheme, the oxidizing reaction speed of coffee beans in the packaging bag can be reduced, and fragrance loss and quality reduction caused by repeated opening are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging, in particular to a coffee bean packaging device. Background Art

[0002] As people's living standards continue to improve, coffee has become a daily drink, and more and more people like to buy coffee beans, take them home, grind them themselves, and make freshly ground coffee to improve the taste of the coffee.

[0003] Roasted coffee beans are the core raw material of coffee drinks, and their unique aroma and flavor are crucial to consumers' drinking experience. However, the existing packaging methods on the market often cannot effectively prevent the rapid loss of aroma of coffee beans due to oxidation and moisture during storage. In particular, the inside of the packaging bag usually contains a certain proportion of oxygen, which reacts with the oil and aroma compounds in the coffee beans to cause aroma loss and the production of unpleasant flavors. In addition, multiple opening and sealing operations lead to frequent gas exchange between the inside of the package and the external environment, accelerating the oxidation process and increasing the risk of microbial contamination. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a coffee bean packaging device, which can reduce the oxidation reaction rate of the coffee beans in the packaging bag and avoid the loss of aroma and quality degradation caused by repeated opening.

[0005] The coffee bean packaging equipment provided by the embodiment of the utility model comprises a nitrogen filling tube, a composite former, a film roll folding device, a dot matrix vertical sealer, a dot matrix horizontal sealer and a cutter, wherein the composite former further comprises a forming film guide, a forming conduit and a flat mouthpiece, wherein:

[0006] The forming film guide is in the shape of an inverted cone funnel and is located at the top. The film rolling folding device is located below the forming film guide. The forming conduit is a hollow columnar conduit. The top of the forming conduit is connected to the bottom of the forming film guide, and the bottom of the forming conduit is connected to the top of the flat mouth. The lattice vertical sealer is located outside the forming conduit, and the lattice horizontal sealer is located below the flat mouth. The nitrogen filling tube is a hollow tube, and the nitrogen filling tube extends from the top of the forming film guide and passes through the forming conduit. The bottom end of the nitrogen filling tube reaches the bottom of the forming conduit, and the cutter is located at a preset distance below the lattice horizontal sealer.

[0007] Furthermore, the composite former also includes a fixing buckle, which is in an I-shape with notches on both sides.

[0008] Furthermore, the preset distance between the cutter and the bottom of the dot matrix transverse sealer is equal to the length of the coffee bean packaging bag.

[0009] Furthermore, the preset distance between the cutter and the bottom of the lattice type transverse sealer is 160 mm.

[0010] Furthermore, the folding width of the film rolling folding device is 8 mm.

[0011] Furthermore, the lattice length of the lattice type vertical sealer is not less than 160 mm, and the lattice width of the lattice type vertical sealer is not less than 8 mm.

[0012] Furthermore, the lattice width of the lattice type transverse sealer is not less than 50 mm, and the lattice height of the lattice type transverse sealer is not less than 20 mm.

[0013] The above technical solution has the following advantages:

[0014] 1. Before packaging the coffee beans, professional equipment is used to inject inactive nitrogen into the packaging bag. By precisely controlling the pressure and flow rate, the original oxygen and other gases in the bag that may affect the quality of the coffee beans are effectively discharged. As an inert gas, nitrogen hardly reacts chemically with the compounds in the coffee beans, which can significantly reduce the oxidation rate and protect the aroma of the coffee beans from being destroyed.

[0015] 2. Easy-to-tear disposable independent packaging bags, each bag is filled with an appropriate amount of roasted coffee beans to meet the needs of one brewing. Consumers can directly use a single independent packaging bag without opening the large package, avoiding the aroma loss, humidity changes and external contamination risks caused by repeated opening and closing of large packages.

[0016] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other purposes, features and advantages of the present invention will become more apparent by describing the embodiments of the present invention in more detail in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0018] Figure 1 It is a front structural schematic diagram of the coffee bean packaging device in the embodiment of the utility model.

[0019] Figure 2 It is a side structural schematic diagram of the coffee bean packaging equipment in the embodiment of the utility model.

[0020] Figure 3 It is a schematic diagram of the structure of the composite former in the embodiment of the utility model. DETAILED DESCRIPTION

[0021] Below, the exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments of the present invention, and it should be understood that the present invention is not limited to the exemplary embodiments described here.

[0022] It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0023] Those skilled in the art can understand that the terms "first" and "second" in the embodiments of the present invention are only used to distinguish different steps, devices or modules, etc., and neither represent any specific technical meaning nor indicate the necessary logical order between them.

[0024] It should also be understood that in the embodiments of the present invention, “plurality” may refer to two or more than two, and “at least one” may refer to one, two or more than two.

[0025] It should also be understood that any component, data or structure mentioned in the embodiments of the present invention can generally be understood as one or more, unless explicitly limited or otherwise indicated in the context.

[0026] Figure 1 It is a structural schematic diagram of the coffee bean packaging equipment in the embodiment of the utility model. Figure 2 Schematic diagram of the structure of the composite former in the embodiment of the utility model. Figure 1 and Figure 2 As shown, the coffee bean packaging equipment includes a nitrogen filling tube 2, a composite former 3, a film roll folding device 4, a dot matrix vertical sealer 5, a dot matrix horizontal sealer 6 and a cutter 7, wherein the composite former further includes a forming film guide 10, a fixing buckle 11, a forming conduit 12 and a flat mouth 13.

[0027] The coffee bean packaging equipment is a top-down production line with each component arranged vertically from top to bottom.

[0028] The uppermost component is the film-forming guide, which is in the shape of an inverted cone funnel, with a feed port 9 at the top for inputting the roll film 1 for producing coffee bean packaging bags, and then folding the roll film inward from a rectangular flat film to shape it.

[0029] The roll film folding device is located below the forming film guide. The roll film folding device is used to fold the two sides of the roll film in half to overlap and form a vertical seal to prepare for subsequent vertical sealing. The size of the roll film folding device is related to the coffee bean packaging bag. In this embodiment, the folding width of the roll film folding device is 8 mm.

[0030] The forming conduit is a hollow columnar conduit, the top of which is connected to the bottom of the forming film guide, and the bottom of which is connected to the top of the flat mouthpiece. The forming conduit continues to shape the roll film into the prototype of a cylindrical strip packaging bag. The flat mouthpiece is used to flatten the two ends of the strip packaging bag to prepare for subsequent horizontal sealing.

[0031] The nitrogen filling tube extends from the top of the forming film guide piece, passes through the forming conduit, and reaches the bottom of the forming conduit. The nitrogen filling tube is a hollow tube and is used to fill nitrogen into the coffee bean packaging bag.

[0032] The fixing buckle is I-shaped with notches on both sides for fixing the entire packaging equipment.

[0033] The dot matrix vertical sealer is located outside the forming duct and is used to perform dot matrix sealing on the vertical seal edges of the strip packaging bags. The dot matrix length of the dot matrix vertical sealer is not less than 160 mm, and 160 mm is used in this embodiment. The dot matrix width of the dot matrix vertical sealer is not less than 8 mm, and 8 mm is used in this embodiment.

[0034] The dot matrix transverse sealer is located below the flat mouth device and is used to perform dot matrix sealing on both ends of the strip packaging bag. The dot matrix width of the dot matrix transverse sealer is not less than 50 mm, and 50 mm is used in this embodiment. The dot matrix height of the dot matrix transverse sealer is not less than 20 mm, and 20 mm is used in this embodiment.

[0035] The cutter is located at a preset distance below the dot matrix transverse sealer, and the preset distance is equal to the length of the coffee bean packaging bag. In this embodiment, 160 mm is used. The cutter is used to cut the packaging bag 8.

[0036] The operation process of the coffee bean packaging equipment is described below.

[0037] Step 1: The roll film for producing coffee bean packaging bags is rectangular and 116 mm wide. The roll film enters the forming film guide from the feeding port. Since the forming film guide is in the shape of an inverted cone funnel, the roll film is folded inward from a rectangular flat film to be shaped.

[0038] Step 2: The two sides of the roll film enter the roll film folding device, which folds the two sides of the roll film in half to overlap and form a vertical sealing edge with a width of 8 mm, preparing for subsequent vertical sealing.

[0039] In step three, the roll film continues to be pulled downward and enters the forming duct, which continues to shape the roll film into the prototype of a cylindrical strip packaging bag.

[0040] Step 4: When the strip packaging bag comes out of the forming conduit, it passes through the flat mouth device, which forms the lower end of the strip packaging bag into a flat mouth shape in preparation for subsequent horizontal sealing.

[0041] Step 5: Close the dot matrix vertical sealer and perform dot matrix sealing on the vertical seal edge of the strip packaging bag. The dot matrix width of the dot matrix vertical sealer is 8 mm.

[0042] Step 6: The dot matrix transverse sealer is closed to dot matrix seal the lower end of the strip packaging bag. The dot matrix width of the dot matrix transverse sealer is 50 mm, and the dot matrix height of the dot matrix transverse sealer is 20 mm.

[0043] Step 7: The strip packaging bag continues to move downward, and when it reaches 160 mm, the dot matrix transverse sealer closes again to perform dot matrix sealing on the upper end of the strip packaging bag.

[0044] Step 8: The strip packaging bag continues to move downward, and when it reaches 160 mm, the cutter closes to cut the strip packaging bag to form an independent coffee bean packaging bag with a length of 160 mm and a width of 50 mm.

[0045] During this process, the nitrogen filling tube continues to fill the coffee bean packaging bag with nitrogen, so that the nitrogen in the packaging bag remains overflowing.

[0046] Nitrogen is a single substance formed by the nitrogen element. It is a colorless and odorless gas at room temperature and pressure. The chemical properties of nitrogen are very stable and generally do not react with other substances. Since the density of nitrogen is greater than that of air, positive pressure filling of nitrogen can effectively replace the air in the package, increase the nitrogen concentration in the packaging belt, and thus reduce the oxygen content in the packaging bag.

[0047] The oxygen concentration in the packaging bag is reduced to an extremely low level by nitrogen filling, forming a storage environment with an oxygen content of less than 1%, effectively inhibiting oxidation reactions and slowing down the volatilization and degradation of aroma components. Laboratory simulation storage experiments show that the oxidation degree of coffee beans packaged in this way is about 60% lower than that of traditional packaging after 6 months of storage, significantly delaying the oxidation and degradation of aroma components.

[0048] The entire packaging process of coffee beans is described in detail below.

[0049] 1. Raw material preparation and nitrogen filling

[0050] a) Coffee bean roasting and cooling.

[0051] First, the coffee beans are roasted according to the established roasting curve to ensure the ideal roasting degree and flavor characteristics. After roasting, forced air cooling or natural cooling is immediately carried out to reduce the temperature of the coffee beans to room temperature (about 20-25℃) to stabilize its chemical properties and reduce the loss of aroma caused by high temperature.

[0052] b) Preparation of nitrogen preparation and filling equipment.

[0053] We use food-grade nitrogen with a purity of ≥99.9% to ensure that the gas is free of impurities and odors. We are equipped with special nitrogen filling equipment, including nitrogen tanks, pressure regulators, flow meters, gas replacement interfaces, etc., and perform equipment performance inspections and calibrations to ensure that the nitrogen filling process is accurate and safe.

[0054] c) Bag pretreatment and nitrogen filling.

[0055] Choose PE / AL / PET three-layer composite pure aluminum soft film packaging bags, clean the bag mouth and check the quality in advance to ensure that there is no damage or contamination. Put the cooled coffee beans into the packaging bag, leaving appropriate space to accommodate nitrogen. Connect the nitrogen filling equipment to the gas replacement interface of the packaging bag and start the nitrogen filling process.

[0056] i) Gas replacement stage: Inject nitrogen into the packaging bag at a low flow rate (such as 0.5L / min) and expel the original air in the bag at the same time. The oxygen content in the bag is monitored in real time by an online residual oxygen analyzer. When the oxygen concentration drops to the set threshold (such as ≤0.5%), stop gas replacement.

[0057] ii) Filling and stabilizing pressure stage: Adjust the nitrogen flow rate to a fine-tuning state (e.g., 0.1 L / min), and continue to inject nitrogen to make the pressure in the packaging bag slightly higher than the atmospheric pressure (e.g., 0.05 bar higher), ensuring that the gas in the bag is evenly distributed and not over-pressurized to avoid physical damage to the coffee beans, and completing the filling process.

[0058] 2. Packaging bag packaging

[0059] a) Debugging of dot matrix thermoplastic packaging equipment

[0060] Select a dot matrix thermoplastic packaging machine that is compatible with PE / AL / PET composite films, set appropriate heat sealing temperature (such as 160-170°C for PE layer, 190-200°C for AL layer, and 220-230°C for PET layer), heat sealing time (such as 0.8-1.2 seconds) and pressure (such as 0.3-0.5MPa) to ensure that a good heat sealing effect can be achieved without damaging the packaging bag structure.

[0061] b) Packaging bag sealing

[0062] Place the filled packaging bag on the workbench of the dot matrix thermoplastic packaging machine to ensure that the bag opening is flat and has no creases. Start the packaging process, and the equipment will perform precise heat sealing on the bag opening to form dense and evenly distributed heat sealing points. After packaging, perform visual inspection and sealing test (such as water immersion method or negative pressure method) on the sealing part to ensure that there is no leakage.

[0063] 3. Design and production of disposable independent packaging bags

[0064] a) Design and material selection

[0065] Design a disposable independent packaging bag of moderate size and easy to tear, using PE / AL / PET composite film, which can hold the amount of coffee beans required for one or several brewings (such as 10-20 grams), ensuring that the independent packaging bag has the same aroma preservation, moisture-proof and light-proof properties.

[0066] b) Packaging and packaging

[0067] Ensure the sealing of the independent packaging bag, and clearly mark the product information on each independent packaging bag to facilitate user management and enjoyment.

[0068] In the above embodiment, since inactive nitrogen is injected into the packaging bag by professional equipment before the coffee beans are packaged, the original oxygen and other gases that may affect the quality of the coffee beans in the bag are effectively discharged by precisely controlling the pressure and flow rate. As an inert gas, nitrogen hardly reacts chemically with the compounds in the coffee beans, and can significantly reduce the oxidation rate, protecting the aroma of the coffee beans from destruction. In addition, the disposable independent packaging bags that are easy to tear produced by this equipment, each bag is filled with an appropriate amount of roasted coffee beans, which can meet the needs of one brewing. Consumers do not need to open the large package, and can directly use a single independent packaging bag, avoiding the aroma loss, humidity changes and external contamination risks caused by repeated opening and closing of the large package.

[0069] The basic principle of the technical solution is described above in conjunction with specific embodiments. However, it should be pointed out that the advantages, strengths, effects, etc. mentioned in the technical solution are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. must be possessed by each embodiment of the technical solution. In addition, the specific details of the above technical solution are only for the purpose of illustration and facilitation of understanding, rather than limitation, and the above details do not limit the technical solution to the need to adopt the above specific details to be implemented.

[0070] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the system embodiment, since it basically corresponds to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0071] The block diagrams of the devices, apparatuses, equipment, and systems involved in the present technical solution are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, meaning "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The word "such as" used here refers to the phrase "such as but not limited to", and can be used interchangeably with it.

[0072] The method and apparatus of the present technical solution may be implemented in many ways. For example, the method and apparatus of the present technical solution may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above order of steps for the method is for illustration only, and the steps of the method of the present technical solution are not limited to the order specifically described above, unless otherwise specifically stated. In addition, in some embodiments, the present technical solution may also be implemented as a program recorded in a recording medium, which includes machine-readable instructions for implementing the method according to the present technical solution. Therefore, the present technical solution also covers a recording medium storing a program for executing the method according to the present technical solution.

[0073] It should also be noted that, in the apparatus, equipment and method of the present technical solution, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of the present technical solution. The above description of the aspects of the technical solution is provided to enable any technician in the field to make or use the present technical solution. Various modifications to these aspects are very obvious to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present technical solution. Therefore, the present technical solution is not intended to be limited to the aspects shown here, but in accordance with the widest range consistent with the principles and novel features of this technical solution.

[0074] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present technical solution to the form of the technical solution herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A coffee bean packaging device, characterized in that: It includes a nitrogen filling tube, a composite former, a film roll folding device, a dot matrix vertical sealer, a dot matrix horizontal sealer and a cutter. The composite former further includes a forming film guide, a forming conduit and a flat mouth. The forming film guide is in the shape of an inverted cone funnel and is located at the top. The film rolling folding device is located below the forming film guide. The forming conduit is a hollow columnar conduit. The top of the forming conduit is connected to the bottom of the forming film guide, and the bottom of the forming conduit is connected to the top of the flat mouth. The lattice vertical sealer is located outside the forming conduit, and the lattice horizontal sealer is located below the flat mouth. The nitrogen filling tube is a hollow tube, and the nitrogen filling tube extends from the top of the forming film guide and passes through the forming conduit. The bottom end of the nitrogen filling tube reaches the bottom of the forming conduit, and the cutter is located at a preset distance below the lattice horizontal sealer.

2. The coffee bean packaging equipment according to claim 1, characterized in that: The composite former also includes a fixing buckle, which is in an I-shape with notches on both sides.

3. The coffee bean packaging equipment according to claim 1, characterized in that: The preset distance between the cutter and the bottom of the dot matrix transverse sealer is equal to the length of the coffee bean packaging bag.

4. The coffee bean packaging equipment according to claim 3, characterized in that: The preset distance between the cutter and the bottom of the lattice type transverse sealer is 160 mm.

5. The coffee bean packaging equipment according to claim 1, characterized in that: The folding width of the film rolling folding device is 8 mm.

6. The coffee bean packaging equipment according to claim 1, characterized in that: The lattice length of the lattice type vertical sealer is not less than 160 mm, and the lattice width of the lattice type vertical sealer is not less than 8 mm.

7. The coffee bean packaging equipment according to claim 1, characterized in that: The lattice width of the lattice type transverse sealer is not less than 50 mm, and the lattice height of the lattice type transverse sealer is not less than 20 mm.

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