Pinhole-free heat shrink packaging machine for fine dried noodles

Abstract

The utility model discloses a fine dried noodle heat shrink packaging machine without pinholes, which comprises a machine frame, a feeding roller, a forming device, an exhaust device and a sealing device, the feeding roller is rotatably arranged on one side in the machine frame, the forming device is arranged above the machine frame, the exhaust device and the sealing device are sequentially arranged at the discharging end of the forming device, and the sealing device is arranged at the discharging end of the forming device. The air exhausting device comprises a box body obliquely arranged at the discharging end of the forming device, an electric heating wire is arranged in the box body, an axial flow fan is arranged on the lower side of the electric heating wire and blows air towards one side of the packaging bag, and a plurality of air inlets are formed in the top of the box body. Heat is generated through heating of the electric heating wire of the exhaust device, the heat is blown to the surface of the packaging bag through the axial flow fan, hot air can improve the temperature of air in the packaging bag on one hand and can extrude out the air in the packaging bag on the other hand, and the size of the packaging bag can be further shrunk after the packaging bag is cooled to the normal temperature. And the problem of bag expansion can be solved without punching.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fine dried noodle packaging technology, especially to a fine dried noodle non-pin-hole heat shrinkage packaging machine. BACKGROUND

[0002] In the production and packaging process of fine dried noodles, the bale of fine dried noodles needs to be sealed by a heat sealing mechanism after being put into a packaging bag, and a large amount of air is stored in the sealed packaging bag. In order to prevent the packaging bag from being inflated due to excessive internal pressure caused by high temperature during storage and transportation in the later stage, a small pinhole needs to be punched on the packaging bag for air exhaust.

[0003] However, the pinhole will also damage the original sealing property of the packaging bag to some extent, causing external moisture to enter and making the fine dried noodles damp and deteriorated. The applicant has searched the related patents of existing fine dried noodle packaging machines and has not found any technical solution to solve the problem of excessive air in the packaging bag or the need to punch a hole on the packaging bag.

[0004] Therefore, the present application proposes a fine dried noodle non-pin-hole heat shrinkage packaging machine to solve the above problems. SUMMARY

[0005] To solve the above technical problems, the utility model discloses a fine dried noodle non-pin-hole heat shrinkage packaging machine, which comprises a rack, a feeding roller, a forming device, an exhaust device and a sealing device. The feeding roller is rotatably arranged on one side of the inside of the rack. The forming device is arranged above the rack. The exhaust device and the sealing device are sequentially arranged at the discharge end of the forming device. The exhaust device comprises a box body arranged obliquely at the discharge end of the forming device. The box body is internally provided with an electric heating wire. An axial flow fan is arranged at the lower side of the electric heating wire, and the axial flow fan blows air towards the side of the packaging bag. A plurality of air inlets are arranged at the top of the box body.

[0006] Further, the forming device comprises a support plate, a plurality of gears, a plurality of pressure rollers, two heating blocks and a driving motor. The support plate is supported and arranged above the rack. A set of mutually meshing gears is arranged at each end above the support plate. A set of oppositely rotating pressure rollers is arranged at each end below the support plate. The driving motor is arranged above the support plate and is in transmission connection with one of the gears. One set of gears at each end is in transmission connection through synchronous pulleys and synchronous belts. The two heating blocks are oppositely arranged below the support plate and located between the two sets of pressure rollers.

[0007] Further, a threaded groove is arranged on the circumferential surface of the pressure roller.

[0008] Further, the sealing device comprises a heat sealing knife, a heat sealing seat, a cutting knife and a cylinder, the heat sealing knife is movably arranged above the rack through a first connecting plate, the heat sealing seat is fixedly arranged inside the rack through a second connecting plate, the cutting knife is arranged on the central axis of the heat sealing knife and protrudes from the lower surface of the heat sealing knife, the cylinder is longitudinally arranged inside the rack through a third connecting plate, and the piston rod end of the cylinder is connected with a fourth connecting plate, one guide rod is connected with the two ends of the first connecting plate and the fourth connecting plate respectively, and the guide rod is slidably penetrated through the second connecting plate and the third connecting plate.

[0009] Further, the heat sealing knife top is provided with a buffer rod on each side, the buffer rod upper side is penetrated through the first connecting plate, and the buffer rod outer side is sleeved with a buffer spring.

[0010] Further, the central axis of the heat sealing seat is provided with a knife groove corresponding to the cutting knife.

[0011] Further, the feeding end of the rack is provided with a guide roller through a connecting arm.

[0012] Further, the rack is provided with two guide plates on the feeding end of the forming device.

[0013] Compared with the prior art, the beneficial effects of the present application are:

[0014] The electric heating wire of the exhaust device generates heat, and the heat is blown to the surface of the packaging bag through the axial flow fan, the hot air can increase the temperature of the air in the packaging bag, and on the other hand, the air in the packaging bag can be squeezed out, and after the packaging bag cools to room temperature, the volume will further shrink, and the bag expansion problem can be solved without punching holes. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 It is a schematic diagram of the internal structure of the forming device in the present application;

[0018] Figure 3 It is a side view structure diagram of the forming device in the present application;

[0019] Figure 4 It is a bottom view structure diagram of the forming device in the present application;

[0020] Figure 5 For Figure 3 Local structure amplification map at A in the middle;

[0021] Figure 6 The overall structure of the sealing device in the utility model is shown in the figure;

[0022] Figure 7 The working principle of the utility model is shown in the figure.

[0023] Reference signs:

[0024] 1-frame, 2-feeding roller, 3-forming device, 31-supporting plate, 32-gear, 33-pressing roller, 34-heating block, 35-driving motor, 36-thread groove, 37-synchronous pulley, 38-synchronous belt, 4-exhaust device, 41-box body, 42-electric heating wire, 43-axial flow fan, 44-air inlet, 5-sealing device, 51-hot sealing knife, 52-hot sealing seat, 53-knife, 54-cylinder, 55-first connecting plate, 56-second connecting plate, 57-knife groove, 58-third connecting plate, 59-fourth connecting plate, 510-guide rod, 511-buffering rod, 512-buffering spring, 6-guide roller, 7-guide plate, 8-connecting arm. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features.

[0028] In the description of the embodiments, unless otherwise explicitly specified and limited, the terms "arranged", "connected" and the like should be broadly understood. For example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or connected through an intermediate medium, or connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] As shown in Figure 1 The dried noodle non-pinhole heat shrinkage packaging machine in the embodiment includes a rack 1, a feeding roller 2, a forming device 3, an exhaust device 4, a sealing device 5, a guide roller 6 and a guide plate 7. The feeding roller 2 is rotatably arranged on one side inside the rack 1 and is used for arranging the film material of the packaging bag. The forming device 3 is arranged above the rack 1 and is used for processing the film into the shape of the packaging bag. The exhaust device 4 and the sealing device 5 are sequentially arranged at the discharging end of the forming device 3 and are respectively used for exhausting the air in the packaging bag and sealing the packaging bag. The guide roller 6 is arranged at the feeding end of the rack 1 through a connecting arm 8 and is used for guiding the film into the forming device 3. Two guide plates 7 are oppositely arranged on the rack 1 at the feeding end of the forming device 3 and play a guiding and limiting role on the film.

[0030] As shown in Figures 2-4 The forming device 3 includes a support plate 31, a plurality of gears 32, a plurality of compression rollers 33, two heating blocks 34 and a driving motor 35. The support plate 31 is supported and arranged above the rack 1. A set of mutually meshing gears 32 is arranged at each end above the support plate 31. A set of oppositely rotating compression rollers 33 is arranged at each end below the support plate 31. Thread grooves 36 are arranged on the circumferential surface of the compression rollers 33. The driving motor 35 is arranged above the support plate 31 and is in transmission connection with one of the gears 32. One set of gears 32 at each end is in transmission connection through a synchronous pulley 37 and a synchronous belt 38. The two heating blocks 34 are oppositely arranged below the support plate 31 and are located between the two sets of compression rollers 33.

[0031] When the film passes below the support plate 31, the two side edges of the film are folded upwards and pass between the two sets of compression rollers 33 and the two heating blocks 34. The compression rollers 33 clamp the film and make it advance. The heating blocks 34 are in contact with the film but do not clamp it, so as to heat and melt the film. Then the melted film is pressed together by the compression rollers 33 at the rear side, forming a cylindrical structure.

[0032] As shown in Figure 5 The exhaust device 4 includes a box body 41 obliquely arranged at the discharging end of the forming device 3. An electric heating wire 42 is arranged inside the box body 41. An axial flow fan 43 is arranged at the lower side of the electric heating wire 42 and blows air towards the side of the packaging bag. A plurality of air inlets 44 are arranged at the top of the box body 41.

[0033] As Figure 3 shown, when the preliminary shaped packaging bag passes under the exhaust device 4, the axial flow fan 43 blows air towards the side of the packaging bag, and the hot air generated by the heating wire 42 is blown to the outer wall of the packaging bag, which can raise the temperature of the air inside the packaging bag, and can also squeeze the air inside the packaging bag out of the tail through air pressure, so that the air inside the packaging bag is reduced to reduce the volume, and when the packaging bag returns to room temperature, the volume will be further reduced.

[0034] As Figure 6 shown, the sealing device 5 includes a heat sealing knife 51, a heat sealing seat 52, a cutter 53 and a cylinder 54, the heat sealing knife 51 is movably arranged above the rack 1 through a first connecting plate 55, the heat sealing seat 52 is fixedly arranged inside the rack 1 through a second connecting plate 56, the cutter 53 is arranged on the central axis of the heat sealing knife 51 and protrudes from the lower surface of the heat sealing knife 51, and the central axis of the heat sealing seat 52 is provided with a cutter groove 57 corresponding to the cutter 53.

[0035] The cylinder 54 is longitudinally arranged inside the rack 1 through a third connecting plate 58, and the piston rod end of the cylinder 54 is connected with a fourth connecting plate 59, one guide rod 510 is connected to each end of the first connecting plate 55 and the fourth connecting plate 59, and the guide rod 510 slidably penetrates the second connecting plate 56 and the third connecting plate 58.

[0036] The heat sealing knife 51 is provided with a buffer rod 511 on each side of the top, the buffer rod 511 penetrates the first connecting plate 55 on the upper side, and the buffer spring 512 is sleeved on the outside of the buffer rod 511.

[0037] When the packaging bag is sealed, the cylinder 54 drives the guide rod 510, the first connecting plate 55 and the heat sealing knife 51 to move downward through the fourth connecting plate 59, so that the heat sealing knife 51 is attached to the heat sealing seat 52, thereby cutting the packaging bag into two through the cutter 53, and heat sealing the two cut packaging bags through the heat sealing knife 51 and the heat sealing seat 52 respectively.

[0038] As Figure 7 shown, the working principle of the utility model is as follows:

[0039] When used for the first time, the film is first manually pulled from the feeding roller 2 to the forming device 3 through the guide roller 6 and the guide plate 7, and the two sides of the film are folded upwards, so that it passes between the two groups of pressing rollers 33, thereby realizing the feeding of the film, and then the equipment can be started for formal packaging process.

[0040] When the film is formally packaged, the driving motor 35 drives one of the gears 32 to rotate, and drives another gear 32 to rotate through meshing, and further drives another set of gears 32 to rotate through the synchronous pulley 37 and the synchronous belt 38. Since the gears 32 are coaxially arranged with the compression rollers 33, the compression rollers 33 below the supporting plate 31 are also synchronously rotated, thereby realizing continuous conveying of the film.

[0041] At the same time, the pre-bundled noodles are placed (by manual or mechanical means) on the film between the two guide plates 7, so as to follow the movement of the film. The seams on the upper side of the film are heated and melted by the heating block 34, and the melted film is pressed together by the compression rollers 33 on the rear side to form a cylindrical structure.

[0042] When the film with noodles moves to the exhaust device 4, the axial flow fan 43 blows air towards the side of the packaging bag, and the hot air generated by the heating wire 42 is blown to the outer wall of the packaging bag. On the one hand, the temperature of the air inside the packaging bag is increased, and on the other hand, the air inside the packaging bag is squeezed out from the tail through the air pressure, so that the air inside the packaging bag is reduced to reduce the volume. When the packaging bag returns to room temperature, the volume will be further reduced.

[0043] Before the film with noodles enters the sealing device 5, the cylinder 54 drives the heat sealing knife 51 to move downward, so that the heat sealing knife 51 is attached to the heat sealing seat 52, and the front end of the film is sealed first. When the noodles pass through the sealing device 5, the cylinder 54 drives the heat sealing knife 51 to move downward again, and the rear end of the film is sealed, so that the front and rear ends of the film are sealed, and the film forms a complete packaging bag structure. At the same time of sealing the rear end of the film, the front end of the subsequent film is also sealed, so that the continuous packaging and sealing of the noodles are realized.

[0044] The packaging bag produced by the above method has less air content, small volume, high redundancy of high-temperature expansion of the packaging bag, and does not need to be additionally punched. The problem of moisture absorption of the noodles caused by punching is avoided, and the risk of bag expansion is eliminated.

[0045] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel in the art; when the combination of technical solutions appears contradictory or unachievable, it shall be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

Claims

1. A needle-hole-free heat shrink packaging machine for noodles, characterized in that: The device includes a frame, a feeding roller, a forming device, an exhaust device, and a sealing device. The feeding roller is rotatably mounted inside one side of the frame. The forming device is mounted above the frame. The exhaust device and the sealing device are sequentially mounted at the discharge end of the forming device. The exhaust device includes a box body inclined at the discharge end of the forming device. The box body is equipped with a heating wire. An axial flow fan is mounted below the heating wire and blows air towards the packaging bag. The top of the box body is equipped with several air inlets.

2. The needle-hole-free heat shrink packaging machine for noodles according to claim 1, characterized in that: The forming device includes a support plate, multiple gears, multiple pressure rollers, two heating blocks, and a drive motor. The support plate is supported above the frame. At each of the upper ends of the support plate, there is a set of meshing gears. At each of the lower ends of the support plate, there is a set of relatively rotating pressure rollers. The drive motor is located above the support plate and is connected to one of the gears. One of the gears at each end is connected to the support plate via a synchronous pulley and a synchronous belt. The two heating blocks are positioned opposite each other below the support plate and between the two sets of pressure rollers.

3. The needle-hole-free heat shrink packaging machine for noodles according to claim 2, characterized in that: The pressure roller has threaded grooves on its circumferential surface.

4. The needle-hole-free heat shrink packaging machine for noodles according to claim 1, characterized in that: The sealing device includes a heat sealing knife, a heat sealing seat, a cutter, and a cylinder. The heat sealing knife is movably mounted above the frame via a first connecting plate. The heat sealing seat is fixedly mounted inside the frame via a second connecting plate. The cutter is mounted on the central axis of the heat sealing knife and protrudes from the lower surface of the heat sealing knife. The cylinder is longitudinally mounted inside the frame via a third connecting plate, and its piston rod end is connected to a fourth connecting plate. A guide rod is connected to each end of the first connecting plate and the fourth connecting plate, and the guide rod slides through the second connecting plate and the third connecting plate.

5. The needle-hole-free heat shrink packaging machine for noodles according to claim 4, characterized in that: A buffer rod is provided on each of the top two sides of the heat sealing knife. The upper side of the buffer rod passes through the first connecting plate, and a buffer spring is sleeved on the outer side of the buffer rod.

6. The needle-hole-free heat shrink packaging machine for noodles according to claim 4, characterized in that: The heat sealing seat has a groove on its central axis that corresponds to the cutting blade.

7. The needle-hole-free heat shrink packaging machine for noodles according to claim 1, characterized in that: The loading end of the frame is equipped with guide rollers via a connecting arm.

8. The needle-hole-free heat shrink packaging machine for noodles according to claim 1, characterized in that: The frame is provided with two guide plates opposite each other at the feeding end of the forming device.

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