CN213292897U - Efficient thermal contraction membrane packagine machine - Google Patents
Efficient thermal contraction membrane packagine machine Download PDFInfo
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- CN213292897U CN213292897U CN202021962122.6U CN202021962122U CN213292897U CN 213292897 U CN213292897 U CN 213292897U CN 202021962122 U CN202021962122 U CN 202021962122U CN 213292897 U CN213292897 U CN 213292897U
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Abstract
The utility model provides an efficient thermal contraction film packaging machine, which comprises a preheating box, a heating box and a transmission mechanism, wherein both ends of the preheating box and the heating box are provided with material inlets and outlets, and the transmission mechanism is communicated with the preheating box and the heating box through the material inlets and outlets; a heating device and a fan are arranged in the heating box, the fan is arranged at the top of the inner wall of the heating box, the air port of the fan is downward, and a hot air conveying port is arranged at the bottom of the inner wall of the heating box; the preheating box is of a double-layer structure comprising an inner box body and an outer box body, an air channel is formed between the inner box body of the preheating box and the outer box body of the preheating box, and a plurality of hot air outlets are formed in the inner box body; a hot air guide channel is arranged below the preheating box and the heating box, one end of the hot air guide channel is communicated with an air channel of the preheating box, and the other end of the hot air guide channel is communicated with a hot air delivery port of the heating box. The utility model discloses a setting up of preheating cabinet makes the thermal contraction membrane shrink more evenly, has improved packing quality, and the heat of preheating cabinet comes from the heating cabinet simultaneously, need not additionally to set up heating device.
Description
Technical Field
The utility model relates to an efficient thermal contraction membrane packagine machine belongs to thermal contraction membrane packing field.
Background
The principle of the packaging machine of the heat shrinkable film is that an article to be packaged is sleeved in the heat shrinkable film in advance, then the edge of the heat shrinkable film is sealed, and finally the article sleeved with the heat shrinkable film passes through a heating device to shrink the heat shrinkable film at a higher temperature so as to be attached to the article, so that the packaging is completed.
Most of the existing heat shrinkable film packaging machines are only provided with a heating box for heating and shrinking operation, and heating devices such as infrared heating pipes or air heaters are arranged in the heating box for processing the heat shrinkable film. For example, CN209290848U discloses a heating device of a heat shrinkable film packaging machine, which is used for heating articles by arranging a plurality of far infrared heaters on the top of a heating box. This method is liable to cause uneven shrinkage of the heat shrinkable film due to the short heating time and the relatively small amount of heat applied to the lower side of the article against the conveyor, resulting in a reduction in packaging quality. To solve this problem, CN205366244U provides a soaking heat shrinkable film packaging machine, which heats packaged articles by multi-stage heating to achieve uniform heat shrinkage of the heat shrinkable film. However, each heating chamber of the method needs to be provided with a separate heating source, so that the energy consumption is increased compared with the conventional heat shrinkable film packaging machine, and the production cost is increased to a certain extent. CN200985106 provides a thermal contraction film packaging machine, which is heated by an air heater, and an air duct is arranged to make the article receive uniform heat in all directions, so as to achieve the purpose of uniform heating. According to the method, the electric heater arranged in the air duct is used for heating hot air, so that on one hand, because the cavity of the air duct is small, local heat accumulation in the air duct is easily caused, and some hidden dangers are caused, and on the other hand, when the electric heater breaks down, the inner box body and the outer box body of the heating box are required to be disassembled, and the operation is troublesome.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides an efficient thermal contraction film packaging machine, this thermal contraction film packaging machine is through setting up the preheating chamber to with the leading-in preheating chamber of the heat of heating chamber, realized the even shrink of thermal contraction film, and improve shrink rate, reduced energy consumption simultaneously.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-efficiency thermal shrink film packaging machine comprises a preheating box, a heating box and a transmission mechanism, and is characterized in that material inlets and material outlets are formed in two ends of the preheating box and two ends of the heating box, and the transmission mechanism penetrates through the preheating box and the heating box through the material inlets and the material outlets; the heating box is internally provided with a heating device and a fan, the fan is arranged at the top of the inner wall of the heating box, the air port of the fan is downward, and the bottom of the inner wall of the heating box is provided with a hot air delivery port; the preheating box is of a double-layer structure comprising an inner box body and an outer box body, an air channel is formed between the inner box body and the outer box body, and a plurality of hot air outlets are formed in the inner box body; a hot air guide channel is arranged below the preheating box and the heating box, one end of the hot air guide channel is communicated with an air channel of the preheating box, and the other end of the hot air guide channel is communicated with a hot air delivery port of the heating box.
The principle of the utility model lies in that, the fan that lies in the heating cabinet top blows the air in the heating cabinet downwards, produces hot-blastly, hot-blastly enters into hot-blast direction passageway from hot-blast delivery port to along hot-blast direction passageway entering wind channel, hot air outlet on the box enters into the preheating cabinet in the rethread, realizes the heating to the preheating cabinet.
The utility model discloses the basic temperature level of heat shrink film can tentatively be improved to the preheating cabinet of addding, and when getting into the heating cabinet, can reduce the temperature difference and the shrink rate difference that produce between article upper surface and the lower surface, make the shrink more even. Taking a PVC heat shrinkable film as an example, the shrinking temperature of the PVC heat shrinkable film is 130-160 ℃, and if the heating temperature of a heating box is 140 ℃, the heating temperature of the heat shrinkable film above an article is higher than that of the heat shrinkable film below the article when the preheating box does not exist, and the heat shrinkable films on the upper side and the lower side generate a larger shrinking time difference when the temperature is increased from 20 ℃ to 140 ℃ at normal temperature, so that the shrinkage is not uniform. At this time, a preheating box is added, if the preheating box is set to be 80 ℃, the temperature of the heat shrinkable film in the preheating box is raised to the level of 80 ℃, and no shrinkage occurs at this time, then the heat shrinkable film on the upper side and the lower side in the heating box only needs to be raised from 80 ℃ to 140 ℃, the shrinkage time difference between the two is shortened, and the shrinkage uniformity is increased. Meanwhile, in order to realize the purpose of energy conservation, the heat in the preheating box comes from the heating box, a heating device does not need to be additionally arranged, and the simplification of the structure of the device and the multi-stage utilization of energy are realized.
Furthermore, the heating device is an infrared heating pipe, and the infrared heating pipes are arranged on the inner walls of two sides of the heating box in two rows.
Compared with other heating devices, the heating effect of the infrared heating pipe is more stable, the influence on the heating effect is smaller in the presence of the fan, and the heat shrinkage film can be heated as stably as possible through the inner walls arranged on the two sides of the heating box.
Furthermore, the top of the preheating box is provided with an exhaust port which is communicated with the outside and the inside of the preheating box.
The arrangement of the exhaust port above the preheating box is beneficial to guiding heat in the heating box into the preheating box.
The air outlet is provided with an exhaust fan, and the air outlet of the exhaust fan faces outwards.
The arrangement of the exhaust fan further improves the efficiency of conveying hot air from the heating box to the preheating box.
Further, the transmission mechanism comprises hinges and a plurality of transmission rods, the transmission rods are arranged between the two hinges, two ends of each transmission rod are respectively connected with the hinges, the hinges are meshed with the transmission gears, and the transmission gears are connected with motors.
Further, a distance is reserved between two adjacent conveying rods, and the distance is 5-15 cm.
After a larger distance is arranged between two adjacent conveying rods, the relative contact area between the heat shrinkage film on the lower side surface and the conveying rods is reduced, because the contact part is often heated unevenly, the uneven heating degree is reduced to a certain degree after the contact area is reduced, and meanwhile, a gap reserved between the two conveying rods is beneficial to the passing of hot air.
Furthermore, heat insulation materials are arranged on the inner walls of the hot air guide channel and the air channel of the preheating box.
Because hot air is conveyed into the preheating box and needs to pass through the hot air guide channel and the air channel, heat can be dissipated in the process, the heat loss ratio can be effectively reduced by adopting the heat-insulating material lining, and the temperature in the preheating box is ensured.
Furthermore, a flexible heat insulation curtain is arranged at the position of the material inlet and the material outlet.
Furthermore, the preheating box is connected with the heating box, and a material outlet of the preheating box and a feeding outlet of the heating box are integrated.
The arrangement of the flexible heat insulation curtain can allow articles to enter and exit the preheating box and the heating box along with the transmission mechanism and keep the temperature in the preheating box and the heating box relatively stable.
To sum up, use the utility model discloses following beneficial effect can be obtained:
1. the utility model discloses a multistage heating's method at first will treat that the packing article passes through the preheating cabinet and heats thermal contraction membrane to higher but not reach the temperature level of shrink point, conveys article in the heating cabinet again, carries out the thermal contraction processing. The method reduces the difference of the contraction time of the upper surface and the lower surface when the heat shrinkable film is heated by an infrared lamp after being preheated, so that the heat shrinkable film contracts more uniformly. In addition, the stroke in the heating box can be shortened, and the production efficiency is accelerated.
2. The utility model discloses a preheating cabinet heat source comes from the heating cabinet, produces hot-blastly through the fan to utilize hot-blast direction passageway to carry to preheating cabinet in, need not additionally to add heating device in preheating cabinet, realized the multistage utilization of energy, reduced the energy consumption.
Drawings
Fig. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic diagram of a side view of a preheating chamber;
the device comprises a preheating box 1, a heating box 2, a transmission mechanism 3, a hot air guide channel 4, an air channel 11, an air outlet 12, an air exhaust fan 13, an inner box 14, an outer box 15, a heating device 21, a fan 22, a hot air delivery port 23 and a hot air outlet 141.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in fig. 1 and 2, the utility model provides an efficient thermal contraction membrane packagine machine, this packagine machine include a preheating cabinet 1 and a heating cabinet 2, and preheating cabinet and heating cabinet both ends all are equipped with the material and import and export, and every material business turn over department all installs a flexible thermal-insulated curtain to thing business turn over and maintain the incasement temperature. The preheating box and the heating box are connected into a whole, a material outlet of the preheating box is combined with a material inlet of the heating box, and a transmission mechanism 3 penetrates through the preheating box and the heating box through the material inlet and the material outlet.
The preheating box has a double-layer structure and comprises an inner box body 14 and an outer box body 15. A cavity is formed between the inner box body and the outer box body, the cavity is an air duct 11, and a plurality of hot air outlets 14 are uniformly arranged on the inner box body. The top of the preheating box is provided with an exhaust port 12 which is communicated with the inside of the inner preheating box and the outside, and an exhaust fan 13 with outward wind direction is arranged at the exhaust port. The process of exhausting the air outwards can generate weak negative pressure, so that the hot air in the heating box can enter the preheating box more smoothly.
The inner walls of the two sides of the heating box are respectively provided with a row of infrared heating pipes 21, the top of the inner wall of the heating box is provided with a fan 22 facing downwards, and the bottom of the inner wall is provided with a hot air delivery port 23. Because the wind direction of the fan is aligned with the hot air delivery port at the bottom, hot air can effectively enter the hot air delivery port.
A hot air guide channel 4 is arranged below the preheating box and the heating box, one end of the hot air guide channel is communicated with the air channel 11 of the preheating box, and the other end of the hot air guide channel is communicated with a hot air delivery port 23 of the heating box, so that hot air in the heating box can be delivered to the preheating box.
The heat insulation layers are arranged on the hot air guide channel and the inner wall of the air duct, so that the heat transmission efficiency is ensured.
The transmission mechanism consists of transmission rods and hinges, wherein the transmission rods are arranged between the two hinges in parallel, and a space of 8cm is reserved between two adjacent transmission rods. The transmission mechanism is driven by a gear engaged with the hinge and a motor connected with the gear.
Specifically, the utility model discloses a processing procedure as follows:
firstly, the fan, the heating device and the exhaust air are opened, so that the temperatures of the heating box and the preheating box tend to be stable. And then activating a transmission mechanism, placing the object on the transmission mechanism, firstly entering the preheating box along with the transmission mechanism, heating to a temperature lower than a thermal shrinkage point, then entering the heating box along with the transmission mechanism, performing shrinkage molding on the thermal shrinkage film under the action of the infrared heating pipes on the opposite sides, and then leaving the heating box along with the transmission mechanism, thus completing the packaging of the object.
Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of the invention, and these changes, modifications, substitutions and alterations should also be construed as the scope of the invention.
Claims (9)
1. A high-efficiency heat shrinkable film packaging machine comprises a preheating box (1), a heating box (2) and a transmission mechanism (3), and is characterized in that material inlets and material outlets are formed in two ends of the preheating box (1) and two ends of the heating box (2), and the transmission mechanism (3) penetrates through the preheating box and the heating box through the material inlets and the material outlets; a heating device (21) and a fan (22) are arranged in the heating box, the fan (22) is arranged at the top of the inner wall of the heating box, the air port of the fan faces downwards, and a hot air conveying port (23) is arranged at the bottom of the inner wall of the heating box; the preheating box is of a double-layer structure comprising an inner box body (14) and an outer box body (15), an air channel (11) is formed between the inner box body (14) and the outer box body (15) of the preheating box, and a plurality of hot air outlets (141) are formed in the inner box body (14); a hot air guide channel (4) is arranged below the preheating box (1) and the heating box (2), one end of the hot air guide channel is communicated with an air channel (11) of the preheating box, and the other end of the hot air guide channel is communicated with a hot air conveying opening (23) of the heating box.
2. The efficient machine for packaging heat shrinkable film according to claim 1, wherein said heating means (21) is an infrared heating tube, and said infrared heating tube is arranged in two rows on the inner wall of both sides of said heating box (2).
3. The efficient heat shrinkable film packaging machine of claim 1, wherein the top of the preheating box is provided with an exhaust port (12) for communicating the outside with the inside of the preheating box.
4. The efficient heat shrinkable film packaging machine of claim 3, wherein an exhaust fan (13) is arranged at the exhaust port (12), and an air port of the exhaust fan (13) faces outwards.
5. A high efficiency heat shrinkable film packaging machine as claimed in claim 1, wherein said transmission mechanism comprises hinges and a plurality of transmission rods, said plurality of transmission rods are arranged in parallel between two hinges, two ends of each transmission rod are respectively connected with said hinges, said hinges are engaged with transmission gears, and said transmission gears are connected with motors.
6. The efficient heat shrinkable film packaging machine as claimed in claim 5, wherein a distance between two adjacent conveying rods is 5-15 cm.
7. The efficient thermal contraction film packaging machine according to claim 1, wherein the inner walls of the hot air guiding channel (4) and the air duct (11) of the preheating box are provided with thermal insulation materials.
8. A high efficiency heat shrinkable film packaging machine as claimed in claim 1, wherein said material inlet and outlet is provided with a flexible thermal insulation curtain.
9. A high efficiency heat shrinkable film packaging machine according to claim 1, wherein said preheating box (1) is connected to said heating box (2), and the material outlet of the preheating box is integrated with the feeding outlet of the heating box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021962122.6U CN213292897U (en) | 2020-09-10 | 2020-09-10 | Efficient thermal contraction membrane packagine machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021962122.6U CN213292897U (en) | 2020-09-10 | 2020-09-10 | Efficient thermal contraction membrane packagine machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213292897U true CN213292897U (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021962122.6U Active CN213292897U (en) | 2020-09-10 | 2020-09-10 | Efficient thermal contraction membrane packagine machine |
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| Country | Link |
|---|---|
| CN (1) | CN213292897U (en) |
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2020
- 2020-09-10 CN CN202021962122.6U patent/CN213292897U/en active Active
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