Heat shrink packaging machine

Abstract

The utility model discloses a thermal shrinkage packaging machine which comprises an air bellow assembly, a first air duct and a second air duct, the air bellow assembly comprises an inner bellow body and an outer bellow body, a thermal shrinkage channel extending horizontally is formed in the inner bellow body, and the first air duct is formed between the inner top wall of the outer bellow body and the outer top wall of the inner bellow body. A second air channel and a third air channel are formed between the inner side wall of the outer box body and the outer side wall of the inner box body, the first air channel communicates with the second air channel and the third air channel, and the thermal shrinkage channel communicates with the second air channel and the third air channel; the conveying mechanism comprises a conveying mesh belt and a first motor for driving the conveying mesh belt to convey, and the conveying mesh belt is arranged in the thermal shrinkage channel; the heating mechanism comprises a support and an electric heating tube arranged on the support, the support is connected with the inner box body, and the electric heating tube is located in the first air duct; and the circulating mechanism comprises a turbofan, and the turbofan is arranged in the first air duct. According to the utility model, the energy consumption generated during thermal shrinkage of the product can be reduced, and the thermal shrinkage uniformity of the product can be improved.

Description

Technical Field

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

[0002] Heat shrink packaging machines utilize hot air technology. Products wrapped in heat shrink film are passed through the machine, where hot air heats and shrinks the film, thus packaging the product. Heat shrink packaging machines are widely used in various industries. Products packaged in shrink wrap are not only aesthetically pleasing and cost-effective, but also allow for promotional combination packaging, while providing sealing, dustproofing, and moisture protection.

[0003] Existing heat shrink packaging machines have a heat shrink channel and a hot air blower inside. When the product enters the heat shrink channel, the hot air blower delivers hot air into the heat shrink channel. However, existing heat shrink packaging machines have high energy consumption, and the hot air is unevenly distributed in the heat shrink channel, which can easily lead to some heat shrink film not shrinking completely. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a heat shrink packaging machine that can reduce energy consumption during product heat shrinking and improve the uniformity of product heat shrinking.

[0005] A heat shrink packaging machine according to an embodiment of the present invention includes: a wind box assembly, including an inner box and an outer box, wherein a horizontally extending heat shrink channel is formed inside the inner box, a first air duct is formed between the inner top wall of the outer box and the outer top wall of the inner box, and a second air duct and a third air duct are formed between the inner side wall of the outer box and the outer side wall of the inner box, the first air duct connecting the second air duct and the third air duct, and the heat shrink channel connecting the second air duct and the third air duct; a conveying mechanism, including a conveyor belt and a first motor for driving the conveyor belt to convey products, the conveyor belt being arranged inside the heat shrink channel; a heating mechanism, including a bracket and an electric heating tube disposed on the bracket, the bracket being connected to the inner box, and the electric heating tube being located inside the first air duct; and a circulation mechanism, including a turbine fan, the turbine fan being disposed inside the first air duct, and the air inlet of the turbine fan being located above the electric heating tube.

[0006] A heat shrink packaging machine according to an embodiment of the present utility model has at least the following beneficial effects:

[0007] 1. This utility model, by setting up a heat shrink channel, a first air duct, a second air duct, and a third air duct, allows the product to be placed inside the heat shrink channel, causing the heat shrink film on the product to shrink. Furthermore, hot air can circulate between the first air duct, the second air duct, the heat shrink channel, and the third air duct, thereby reducing heat loss within the heat shrink channel and reducing the time during which the heat shrink packaging machine continuously generates heat, thus reducing the energy consumption of the heat shrink packaging machine.

[0008] 2. This utility model uses a conveyor belt and a first motor to drive the conveyor belt to transport the product through the heat shrink channel. The conveyor belt has a large number of through holes, and hot air can heat and shrink the heat shrink film on the bottom of the product through the through holes from the bottom of the conveyor belt, thereby avoiding the situation where the heat shrink film on the bottom of the product is not fully shrunk.

[0009] 3. By setting up a bracket and an electric heating tube, the electric heating tube is installed in the first air duct using the bracket. The heat generated by the electric heating tube can circulate between the first air duct, the second air duct, the heat shrink channel and the third air duct, avoiding the electric heating tube directly heating and shrinking the heat shrink film of the product in the heat shrink channel, and greatly reducing the possibility of damage to the heat shrink film due to excessive temperature.

[0010] 4. By setting up a turbine fan above the electric heating tube, the heat generated by the electric heating tube can directly enter the air inlet of the turbine fan when the turbine fan is working. The turbine fan quickly converts the heat into hot air, which circulates between the first air duct, the second air duct, the heat shrink channel and the third air duct. This can reduce the power of the electric heating tube and reduce the continuous heating time of the electric heating tube, which is conducive to reducing energy consumption.

[0011] According to an embodiment of the present utility model, a heat shrink packaging machine is provided on the top of the inner box, the support frame has a plurality of positioning grooves, the plurality of positioning grooves are distributed along the length direction of the heat shrink channel, and a cover plate is placed in the positioning groove, the cover plate is used to form the top wall of the inner box.

[0012] According to an embodiment of the present invention, a heat shrink packaging machine is provided with a handle on the top of the cover plate.

[0013] According to an embodiment of the present invention, a heat shrink packaging machine has a first air guide plate and a second air guide plate in the horizontal direction of the inner box. The first air guide plate is used to form one side wall of a second air duct, and the second air guide plate is used to form one side wall of a third air duct. Both the first air guide plate and the second air guide plate have air guide holes.

[0014] According to an embodiment of the present invention, a heat shrink packaging machine has a support frame with a vertical pole and a crossbeam connected to the top of the vertical pole, and the electric heating tube is disposed on the crossbeam.

[0015] According to an embodiment of the present invention, a heat shrink packaging machine has a hinged flap at the top of the outer box, which forms the top wall of the outer box.

[0016] According to an embodiment of the present invention, a heat shrink packaging machine is provided, wherein a reinforcing plate is connected between the side walls of the outer box and the inner box.

[0017] According to an embodiment of the present utility model, a heat shrink packaging machine is provided with an air inlet pipe, which connects the first air duct to the outside.

[0018] According to an embodiment of the present utility model, a heat shrink packaging machine has a support plate arranged on the inner side of the conveyor belt. The support plate is connected to the side wall of the inner box and is used to support the conveyor belt to prevent the conveyor belt from sagging.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional view of a heat shrink packaging machine according to an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 A cross-sectional view of a heat shrink packaging machine from another side view is shown;

[0023] Figure 3 for Figure 1 A partial view of a heat shrink packaging machine is shown.

[0024] Reference numerals: 100-Inner casing, 110-Outer casing, 120-Heat shrink tunnel, 130-First air duct, 140-Second air duct, 150-Third air duct, 160-Conveyor belt, 170-First motor, 180-Bracket, 190-Heating tube, 200-Turbine fan, 210-Support frame, 220-Positioning groove, 230-Cover plate, 240-Handle, 250-First air guide plate, 260-Second air guide plate, 270-Air guide hole, 280-Upright pole, 290-Crossbeam, 300-Flip cover, 310-Reinforcing plate, 320-Air inlet pipe, 330-Support plate. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] A heat shrink packaging machine according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0030] Reference Figure 1The present invention aims to provide an embodiment of a heat shrink packaging machine.

[0031] A heat shrink packaging machine according to an embodiment of the present invention includes a bellows assembly, which includes an inner box 100 and an outer box 110. A horizontally extending heat shrink channel 120 is formed inside the inner box 100. A first air duct 130 is formed between the inner top wall of the outer box 110 and the outer top wall of the inner box 100. A second air duct 140 and a third air duct 150 are formed between the inner side wall of the outer box 110 and the outer side wall of the inner box 100. The first air duct 130 connects the second air duct 140 and the third air duct 150, and the heat shrink channel 120 connects the second air duct 140 and the third air duct 150.

[0032] Understandably, by setting up the heat shrink channel 120, the first air duct 130, the second air duct 140, and the third air duct 150, placing the product into the heat shrink channel 120 allows the heat shrink film on the product to shrink. Furthermore, hot air can circulate between the first air duct 130, the second air duct 140, the heat shrink channel 120, and the third air duct 150, thereby reducing heat loss within the heat shrink channel 120 and reducing the time the heat shrink packaging machine continuously generates heat, thus reducing the energy consumption of the heat shrink packaging machine.

[0033] A heat shrink packaging machine according to an embodiment of the present invention further includes a conveying mechanism, which includes a conveyor belt 160 and a first motor 170 for driving the conveyor belt 160 to convey products. The conveyor belt 160 is arranged in the heat shrink channel 120.

[0034] It is understandable that by setting up a conveyor belt 160 and a first motor 170, the first motor 170 drives the conveyor belt 160 to transport the product through the heat shrink channel 120. The conveyor belt 160 has a large number of through holes, and hot air can pass through the through holes from the bottom of the conveyor belt 160 to heat and shrink the heat shrink film at the bottom of the product, thereby avoiding the situation where the heat shrink film at the bottom of the product is not fully shrunk.

[0035] A heat shrink packaging machine according to an embodiment of the present invention further includes a heating mechanism, which includes a support 180 and an electric heating tube 190 disposed on the support 180. The support 180 is connected to the inner box 100, and the electric heating tube 190 is located in the first air duct 130.

[0036] Understandably, by setting up the bracket 180 and the heating element 190, the heating element 190 is installed in the first air duct 130 using the bracket 180. The heat generated by the heating element 190 can circulate between the first air duct 130, the second air duct 140, the heat shrink channel 120 and the third air duct 150, avoiding the heating element 190 directly heating and shrinking the heat shrink film of the product in the heat shrink channel 120, and greatly reducing the possibility of damage to the heat shrink film due to excessive temperature.

[0037] A heat shrink packaging machine according to an embodiment of the present invention further includes a circulation mechanism, which includes a turbine fan 200. The turbine fan 200 is disposed in a first air duct 130, and the air inlet of the turbine fan 200 is located above the heating tube 190.

[0038] Understandably, by setting the turbine fan 200 above the electric heating tube 190, when the turbine fan 200 is working, the heat generated by the electric heating tube 190 can directly enter the air inlet of the turbine fan 200. The turbine fan 200 quickly converts the heat into hot air, which circulates between the first air duct 130, the second air duct 140, the heat shrink channel 120, and the third air duct 150. This reduces the power of the electric heating tube 190 and also reduces the continuous heating time of the electric heating tube 190, which helps to reduce energy consumption.

[0039] In some embodiments of this utility model, reference is made to Figure 1 and Figure 3 The top of the inner box 100 is provided with a support frame 210, which has a plurality of positioning grooves 220. The plurality of positioning grooves 220 are distributed along the length of the heat shrink channel 120. A cover plate 230 is placed in the positioning groove 220, and the cover plate 230 is used to form the top wall of the inner box 100.

[0040] By setting up a support frame 210 with a positioning groove 220, the cover plate 230 can be directly placed into the positioning groove 220. Then, bolts are used to fix the cover plate 230 onto the support frame 210, making the installation of the cover plate 230 more convenient.

[0041] In some embodiments of this utility model, a handle 240 is provided on the top of the cover plate 230.

[0042] Understandably, when the heat shrink packaging machine needs internal maintenance, the operator can use the handle 240 to remove or install the cover plate 230, making it easier to remove and place the cover plate 230.

[0043] In some embodiments of this utility model, reference is made to Figure 1 and Figure 2The inner box 100 has a first air guide plate 250 and a second air guide plate 260 in the horizontal direction. The first air guide plate 250 is used to form one side wall of the second air duct 140, and the second air guide plate 260 is used to form one side wall of the third air duct 150. Both the first air guide plate 250 and the second air guide plate 260 have air guide holes 270.

[0044] It is understandable that both the first air guide plate 250 and the second air guide plate 260 have multiple air guide holes 270, which are arranged in a matrix. This allows the hot air from the second air duct 140 to enter the heat shrink channel 120 evenly through the air guide holes 270, so that the hot air is evenly distributed in the heat shrink channel 120, which is beneficial for heating and shrinking the heat shrink film evenly.

[0045] In some embodiments of this utility model, the bracket 180 has a vertical pole 280 and a crossbeam 290 connected to the top of the vertical pole 280. An electric heating tube 190 is provided on the crossbeam 290, so that the electric heating tube 190 is closer to the air inlet of the turbine fan 200, which is beneficial for the turbine fan 200 to generate hot air.

[0046] In some embodiments of this utility model, a flap 300 is hinged to the top of the outer casing 110, and the flap 300 is used to form the top wall of the outer casing 110.

[0047] Therefore, when the heat shrink packaging machine needs internal maintenance, the flip cover 300 can be flipped up to open the interior of the outer box 110, making it convenient for staff to perform internal maintenance on the heat shrink packaging machine.

[0048] In some embodiments of this utility model, a reinforcing plate 310 is connected between the side walls of the outer casing 110 and the inner casing 100. Therefore, by welding the reinforcing plate 310 between the outer casing 110 and the inner casing 100, it is beneficial to improve the structural stability of the wind box assembly and reduce the problem of wind box assembly deformation.

[0049] In some embodiments of this utility model, the outer casing 110 is provided with an air inlet pipe 320, which connects the first air duct 130 to the outside.

[0050] It is understandable that the air intake pipe 320 is close to the first air duct 130. When the turbine fan 200 is working, the air inlet of the turbine fan 200 can quickly draw air from the air intake pipe 320, which is conducive to the turbine fan 200 generating a large flow of hot air.

[0051] In some embodiments of this utility model, reference is made to Figure 2 A support plate 330 is arranged on the inner side of the conveyor belt 160. The support plate 330 is connected to the side wall of the inner box 100. The support plate 330 is used to support the conveyor belt 160 to prevent the conveyor belt 160 from sagging. Thus, the conveyor belt 160 can transport heavier products.

[0052] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A heat shrink packaging machine characterized by, The utility model relates to a heat-shrinking tunnel, comprising: a wind box assembly, including an inner box (100) and an outer box (110), the inner box (100) is formed with a horizontally extending heat-shrinking channel (120), a first air duct (130) is formed between the inner top wall of the outer box (110) and the outer top wall of the inner box (100), a second air duct (140) and a third air duct (150) are formed between the inner side wall of the outer box (110) and the outer side wall of the inner box (100), the first air duct (130) communicates the second air duct (140) and the third air duct (150), and the heat-shrinking channel (120) communicates the second air duct (140) and the third air duct (150); a conveying mechanism, including a conveying mesh belt (160) and a first motor (170) for driving the conveying mesh belt (160) to convey, the conveying mesh belt (160) is arranged in the heat-shrinking channel (120), and the conveying mesh belt (160) is used for conveying products; a heating mechanism, including a support (180) and an electric heating tube (190) arranged on the support (180), the support (180) is connected with the inner box (100), and the electric heating tube (190) is located in the first air duct (130); a circulating mechanism, including a turbo fan (200), the turbo fan (200) is arranged in the first air duct (130), and the air inlet of the turbo fan (200) is located above the electric heating tube (190).

2. A heat shrink packaging machine according to claim 1, characterised in that, The top of the inner box (100) is provided with a support frame (210), the support frame (210) has a plurality of positioning grooves (220), the positioning grooves (220) are distributed along the length direction of the heat-shrinking channel (120), the positioning grooves (220) are placed with cover plates (230), and the cover plates (230) are used for forming the top wall of the inner box (100).

3. A heat shrink packaging machine according to claim 2, wherein, The top of the cover plate (230) is provided with a handle (240).

4. A heat shrink packaging machine according to claim 1, wherein, The inner box (100) has a first air guide plate (250) and a second air guide plate (260) in the horizontal direction, the first air guide plate (250) is used for forming one side wall of the second air duct (140), the second air guide plate (260) is used for forming one side wall of the third air duct (150), and the first air guide plate (250) and the second air guide plate (260) both have air guide holes (270).

5. A heat shrink packaging machine according to claim 1, wherein, The support (180) has a vertical rod (280) and a cross beam (290) connected with the top of the vertical rod (280), and the electric heating tube (190) is arranged on the cross beam (290).

6. A heat shrink packaging machine according to claim 1, wherein, The top of the outer box (110) is hinged with a flip cover (300), and the flip cover (300) is used for forming the top wall of the outer box (110).

7. A heat shrink packaging machine according to claim 1, wherein, The side walls of the outer box (110) and the inner box (100) are connected with a reinforcing plate (310).

8. A heat shrink packaging machine according to claim 1, wherein, The outer box (110) is provided with an air inlet pipe (320), and the air inlet pipe (320) communicates the first air duct (130) with the outside.

9. A heat shrink packaging machine according to claim 1, wherein, The inner side of the conveying mesh belt (160) is arranged with a support plate (330), the support plate (330) is connected with the side wall of the inner box body (100), and the support plate (330) is used for supporting the conveying mesh belt (160) to prevent the conveying mesh belt (160) from sagging.

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