Heat shrink packaging machine

Abstract

The utility model discloses a heat shrink packaging machine, which relates to the technical field of packaging machines. The utility model comprises a heat shrink machine and a heating component. The heating component comprises a hot air blower arranged on the top of the heat shrink machine. When heat shrink packaging is performed on a rice noodle can body, air can be sucked into the hot air blower from the inside of the heat shrink machine through a group of air ducts. After being heated by an electric heating wire, the air is blown into the heat shrink machine from another group of air ducts, thereby forming a heat cycle, further utilizing the waste heat of the device, and reducing energy consumption. When the working environment is relatively humid, the reversing valve can be closed, and the first valve body and the second valve body can be opened at the same time, so that the original gas circulation path is changed, so that the humid hot air enters the drying box through the shunt pipe, and is output through the confluence pipe after being dried, so as to dry the humid hot air, further avoid the attachment of droplets to the surface of the can body packaging film and the inner wall of the device after heat shrinkage, facilitate the subsequent storage of the product, and extend the service life of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, in particular to a heat shrink packaging machine. Background Art

[0002] Baby rice cereal is a modern scientific complementary food designed specifically for infants and young children who do not have enough breast milk or need complementary food supplements. It is made from original high-quality millet and rice as the main raw materials, with optional ingredients such as white sugar, vegetables, fruits, eggs, and meat added. It is made through scientific formula processing. Most of the existing baby rice cereals are stored in cans, which are then packaged as a whole in a heat shrink packaging machine to provide sealed protection for the product.

[0003] Most of the existing heat shrink packaging machines tend to heat the air through an electric heating wire when in use, and then use a fan to blow hot air into the device to make the inside of the device reach the heat shrinking temperature. The heat shrink film shrinks when heated and locks the packaged objects. However, when the external environment in which the device is used is relatively humid, the humidity in the hot air will be relatively high, resulting in droplets adhering to the surface of the can packaging film and the inner wall of the device after heat shrinkage. This is not only not conducive to the subsequent storage of the product, but the droplets adhering to the inner wall of the device will also corrode the device, reducing the service life of the device. Utility Model Content

[0004] The purpose of the utility model is to provide a heat shrink packaging machine to solve the technical problems mentioned in the above background technology.

[0005] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0006] A heat shrink packaging machine, comprising a heat shrink machine;

[0007] It also includes a heating assembly, which includes a hot air blower arranged on the top of the heat shrink machine, air ducts symmetrically arranged at both ends of the hot air blower, hot air hoods and negative pressure hoods respectively arranged on two groups of air ducts, and the hot air hood and the negative pressure hood are located inside the heat shrink machine in an upper and lower staggered distribution, and a reversing valve is arranged on one group of air ducts;

[0008] A drying component, the drying component includes a drying box mounted on one side of the heat shrink machine, a shunt pipe arranged at the input end of the drying box and connected to the air duct, and the shunt pipe is located below the reversing valve, a first valve body arranged on the shunt pipe, a manifold arranged at the output end of the drying box and connected to the air duct, and the manifold is located above the reversing valve, a second valve body arranged on the manifold and a sealing door movably arranged on one side of the drying box.

[0009] As a further solution of the utility model: openings are symmetrically provided on both sides of the heat shrink machine, curtains are provided on the openings, a control box is provided on the outside of the heat shrink machine, and a fan and a heating wire are provided inside the hot air blower.

[0010] As a further solution of the utility model: the outer side of the sealing door is symmetrically provided with limiting grooves near the edge, the side of the drying box provided with the sealing door is provided with a support rod corresponding to the limiting groove, and the outer side of the support rod is sleeved with a fixing plate.

[0011] As a further solution of the utility model: a telescopic column is provided on the inner sliding sleeve of one end of the fixed plate away from the support rod, a pressure block matching the limit groove is provided on the end of the telescopic column away from the fixed plate, a fixed plate is provided on the outer sleeve of the telescopic column, and a spring is located between the fixed plate and the pressure block.

[0012] As a further solution of the utility model: a sieve plate is arranged on the inner wall of the drying box near the manifold, a bag cover matching the manifold is arranged on the top wall of the drying box, and several groups of moisture absorbing plates are arranged on the inner wall of the drying box near the diversion pipe.

[0013] As a further solution of the utility model: a feeding rack is arranged inside the opening, and the feeding rack is located below the barrier curtain.

[0014] Beneficial effects of the utility model:

[0015] When the utility model performs heat shrink packaging on the rice noodle can body, air can be sucked into the hot air blower from the inside of the heat shrink machine through a group of air ducts, and after the electric heating wire is heated, the air is blown into the heat shrink machine from another group of air ducts, thereby forming a heat cycle, further utilizing the waste heat of the device and reducing energy consumption. When the working environment is relatively humid, the reversing valve can be closed, and the first valve body and the second valve body can be opened at the same time to change the original gas circulation path, so that the humid hot air enters the drying box through the shunt pipe and is output through the confluence pipe after drying, thereby drying the humid hot air, further avoiding the adhesion of droplets on the surface of the can packaging film and the inner wall of the device after heat shrinkage, facilitating the subsequent storage of the product and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional schematic diagram of the whole device in the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the hot air hood in the utility model;

[0019] Figure 3 This utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0020] Figure 4 It is a schematic diagram of the structure of the moisture absorbing plate in the utility model.

[0021] In the figure: 1. heat shrink machine; 2. curtain; 3. hot air blower; 4. air duct; 5. hot air hood; 6. negative pressure hood; 7. reversing valve; 8. drying box; 9. diverter pipe; 10. first valve body; 11. conduit; 12. second valve body; 13. sealing door; 14. limit groove; 15. support rod; 16. fixing plate; 17. telescopic column; 18. pressure block; 19. spring; 20. sieve plate; 21. bag cover; 22. moisture absorption plate; 23. feeding rack. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-4 As shown, a heat shrink packaging machine includes a heat shrink machine 1;

[0024] The heat shrink machine 1 further includes a heating component, which includes a hot air blower 3 arranged on the top of the heat shrink machine 1, a blower and an electric heating wire are arranged inside the hot air blower 3, air ducts 4 are symmetrically arranged at both ends of the hot air blower 3, hot air hoods 5 and negative pressure hoods 6 are respectively arranged on two groups of air ducts 4, and the hot air hoods 5 and the negative pressure hoods 6 are located in the heat shrink machine 1 in an up-and-down staggered distribution, a group of air ducts 4 is provided with a reversing valve 7, and a drying component, which includes a drying box 8 mounted on one side of the heat shrink machine 1, a shunt pipe 9 arranged at the input end of the drying box 8 and connected to the air duct 4, and the shunt pipe 9 is located below the reversing valve 7, a first valve body 10 arranged on the shunt pipe 9, a manifold 11 arranged at the output end of the drying box 8 and connected to the air duct 4, and the manifold 11 is located above the reversing valve 7, and a second valve body 1 is arranged on the manifold 11. 2 and a sealed door 13 movably arranged on one side of the drying box 8. When the device is performing heat shrink packaging, the hot air blower 3 generates negative pressure, and the air is sucked from the inside of the heat shrink machine 1 through a group of air ducts 4, and then heated by the electric heating wire, and then blown into the heat shrink machine 1 from another group of air ducts 4, thereby forming a heat cycle. During use, the waste heat of the device is further utilized, and energy consumption is reduced. The staggered hot air hood 5 and the negative pressure hood 6 can effectively prevent the hot air from entering the hot air blower 3 too quickly during gas circulation, thereby ensuring the heating effect of the device. When the working environment is relatively humid, the reversing valve 7 can be closed, and the first valve body 10 and the second valve body 12 can be opened at the same time, so that the gas enters the drying box 8 through the shunt pipe 9 during circulation, and is output through the confluence pipe 11 after drying, thereby drying the humid hot air.

[0025] In this embodiment, specifically, openings are symmetrically provided on both sides of the heat shrink machine 1, and curtains 2 are provided on the openings, which can effectively reduce the heat loss rate inside the device and improve the heating efficiency of the device. A control box is provided on the outside of the heat shrink machine 1.

[0026] In this embodiment, specifically, the outer side of the sealing door 13 is symmetrically provided with a limiting groove 14 near the edge, and the drying box 8 is provided with a support rod 15 corresponding to the limiting groove 14 on one side of the sealing door 13, and the outer side of the support rod 15 is sleeved with a fixing plate 16, and the inner side of the end of the fixing plate 16 away from the support rod 15 is slidably sleeved with a telescopic column 17, and the end of the telescopic column 17 away from the fixing plate 16 is provided with a pressing block 18 matching the limiting groove 14, and the outer side of the telescopic column 17 is sleeved with a fixing plate 16, and the spring 19 is located at Between the fixed plate 16 and the pressing block 18, the spring 19 forms an elastic support for the pressing block 18. When sealing the sealing door 13, the staff stretches and rotates the telescopic column 17 outward to align the pressing block 18 with the limiting groove 14. At this time, the spring 19 is compressed. After letting go, the elastic force of the spring 19 squeezes the pressing block 18, so that the edge of the sealing door 13 is tightly attached to one side of the drying box 8. While ensuring the overall sealing of the box body, it is also convenient for the staff to open the sealing door 13 and inspect and replace the internal components of the box body.

[0027] In the present embodiment, specifically, a sieve plate 20 is provided on the inner wall of the drying box 8 near the manifold 11, a bag cover 21 matching the manifold 11 is provided on the top wall of the drying box 8, and a plurality of groups of desiccant plates 22 are provided on the inner wall of the drying box 8 near the diversion pipe 9. When hot air with high humidity enters the drying box 8, it is absorbed multiple times by the plurality of groups of desiccant plates 22, so that the humidity of the hot air can be reduced to the maximum extent. The sieve plate 20 and the bag cover 21 cooperate with each other to filter the dehumidified hot air, so as to prevent dust particles mixed in the hot air from entering the heat shrink machine 1 and causing pollution to the product.

[0028] In this embodiment, specifically, a feeding rack 23 is set inside the opening, and the feeding rack 23 is located below the barrier curtain 2, and the feeding rack 23 is used to transport the rice noodle cans to be packaged.

[0029] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A heat shrink packaging machine, comprising a heat shrink machine (1); characterized in that: It also comprises a heating assembly, the heating assembly comprising a hot air blower (3) arranged at the top of the heat shrink machine (1), air ducts (4) symmetrically arranged at both ends of the hot air blower (3), hot air hoods (5) and negative pressure hoods (6) respectively arranged on the two groups of air ducts (4), and the hot air hoods (5) and negative pressure hoods (6) are located inside the heat shrink machine (1) in an up-and-down staggered arrangement, and a reversing valve (7) is arranged on one group of air ducts (4); A drying assembly, the drying assembly comprising a drying box (8) mounted on one side of a heat shrink machine (1), a shunt pipe (9) arranged at the input end of the drying box (8) and connected to an air duct (4), wherein the shunt pipe (9) is located below a direction-changing valve (7), a first valve body (10) arranged on the shunt pipe (9), a manifold (11) arranged at the output end of the drying box (8) and connected to the air duct (4), wherein the manifold (11) is located above the direction-changing valve (7), a second valve body (12) arranged on the manifold (11), and a sealing door (13) movably arranged on one side of the drying box (8).

2. A heat shrink packaging machine according to claim 1, characterized in that: The heat shrink machine (1) has openings symmetrically formed on both sides, and curtains (2) are provided on the openings. A control box is provided on the outside of the heat shrink machine (1), and a fan and a heating wire are provided inside the hot air blower (3).

3. A heat shrink packaging machine according to claim 1, characterized in that: The outer side of the sealing door (13) is symmetrically provided with a limiting groove (14) near the edge; the drying box (8) is provided with a support rod (15) corresponding to the limiting groove (14) on one side of the sealing door (13); and a fixing plate (16) is sleeved on the outer side of the support rod (15).

4. A heat shrink packaging machine according to claim 3, characterized in that: A telescopic column (17) is slidably sleeved on the inner side of one end of the fixed plate (16) away from the support rod (15); a pressing block (18) matching the limiting groove (14) is provided on the end of the telescopic column (17) away from the fixed plate (16); the fixed plate (16) is sleeved on the outer side of the telescopic column (17); and a spring (19) is located between the fixed plate (16) and the pressing block (18).

5. The heat shrink packaging machine according to claim 1, characterized in that: A sieve plate (20) is arranged on the inner side wall of the drying box (8) near the manifold (11), a bag cover (21) matching the manifold (11) is arranged on the top wall of the drying box (8), and a plurality of groups of moisture absorbing plates (22) are arranged on the inner side wall of the drying box (8) near the diverter pipe (9).

6. A heat shrink packaging machine according to claim 2, characterized in that: A feeding rack (23) is arranged inside the opening, and the feeding rack (23) is located below the barrier curtain (2).

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