CN218559379U - Section bar pyrocondensation membrane heat shrinkage device and section bar packaging production line - Google Patents

Abstract

The utility model discloses a section bar pyrocondensation membrane heat shrink device and section bar packaging production line. The section bar heat shrinkable film heat shrinking device comprises a device body, wherein the device body comprises a hot air nozzle arranged on the outer side of a section bar conveying path. The section bar packaging production line comprises the section bar heat shrinkable film heat shrinkable device and a section bar conveying mechanism at least arranged on one side of the input end or the output end of the section bar heat shrinkable film heat shrinkable device. The utility model provides a section bar pyrocondensation membrane heat shrink device and section bar packaging production line, the energy consumption is low, convenient operation, and the security is higher moreover.

Description

Section bar pyrocondensation membrane heat shrinkage device and section bar packaging production line

Technical Field

The utility model relates to a section bar packing field especially relates to a section bar pyrocondensation membrane heat shrink device and section bar packaging production line.

Background

After the surface of the section is subjected to acid-base cleaning and other treatments, in order to better protect the surface of the section and reduce the problem of scratches caused by collision, a heat-shrinkable film is coated on the surface of the section before packaging. The traditional way of coating the surface of the section bar with the heat-shrinkable film is to sleeve a plurality of section bars with the heat-shrinkable film and then put the section bars into an oven provided with an electric heating tube together. The electric heating tubes are multiple and distributed in the bottom and the side wall of the oven, the power of each electric heating tube is about 1KW, and the larger the oven is, the more electric heating tubes need to be arranged, and the larger the power needed by the whole oven is. The inside of the oven was heated to 80-140 ℃ in advance. In order to ensure that the thermal shrinkage films of the profiles are heated uniformly, hot air is pressed downwards in the oven through a fan at the top. However, the above method has the following drawbacks: 1) The drying oven needs to be preheated firstly, the preheating needs more than ten minutes due to the large volume of the drying oven, the consumed time is long, the section is heated while the heat shrinkage film is acted, and the energy consumption reaches more than 30 KW; 2) Personnel need be close to the higher oven of temperature when carrying the section bar, and operational environment is comparatively abominable, and is big to personnel physical stamina consumption, and the security is also lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a section bar pyrocondensation membrane heat shrink device and section bar packaging production line, the energy consumption is low, convenient operation, and the security is higher moreover.

In order to achieve the above object, the utility model provides a section bar pyrocondensation membrane heat shrink device, including the device main part, the device main part is including setting up the hot-blast spout in the section bar delivery path outside.

As a further improvement of the present invention, the hot air outlets are at least two and arranged around the profile conveying path.

As a further improvement of the present invention, the hot air nozzles are arranged along the direction of the section bar.

As a further improvement of the utility model, the device main body comprises a pressure stabilizing box body, and the middle part of the pressure stabilizing box body is provided with a channel which is communicated along the two ends of the section bar conveying path; the pressure stabilizing box body is provided with a pressure stabilizing inner cavity which is arranged around the outer side of the channel, and the hot air nozzle is arranged on the inner wall of the channel and communicated with the pressure stabilizing inner cavity; the pressure stabilizing box body is connected with an air inlet pipe.

As a further improvement of the utility model, a heating structure is arranged on the air inlet pipe; the air inlet pipe is connected with a fan.

In order to achieve the above object, the utility model also provides a section bar packaging production line, include section bar pyrocondensation membrane heat shrink device still includes the section bar conveying mechanism who sets up at section bar pyrocondensation membrane heat shrink device input or output one side at least.

As a further improvement, the input front side of the section bar thermal shrinkage film heat shrinkable device is provided with a section bar thermal shrinkage film sleeve device.

As a further improvement of the utility model, the section bar thermal shrinkage film sleeving device comprises two side plates, a top plate, a first bottom plate and a second bottom plate; the top plate is connected between the upper parts of the two side plates, and the first bottom plate and the second bottom plate are respectively connected to the lower parts of the two side plates; the first bottom plate is positioned below the second bottom plate and arranged in a clearance way; the rear part of the section bar thermal shrinkage film sleeving device is provided with a thermal shrinkage film edge sealing structure.

As a further improvement of the utility model, the front side of the side plate is provided with a first bevel edge guide part; the front sides of the first bottom plate and the second bottom plate are respectively provided with a second bevel edge guide part and a third bevel edge guide part; the rear ends of the first bevel edge guide parts of the two side plates are respectively connected with the front ends of the second bevel edge guide part and the third bevel edge guide part; the front side of the input end of the section bar thermal shrinkage film sleeving device is provided with a thermal shrinkage film unwinding structure.

As a further improvement of the present invention, the thermal shrinkage film edge sealing structure comprises an electrostatic edge sealing device or an ultrasonic welding device; and a negative pressure film sucking conveying belt and a heat shrinkable film sealing and cutting structure are sequentially arranged between the output end of the section heat shrinkable film sleeving device and the input end of the section heat shrinkable film heat shrinking device.

Advantageous effects

Compared with the prior art, the utility model discloses a section bar pyrocondensation membrane heat shrink device and section bar packaging production line's advantage does:

1. the hot air sprayed out from the hot air nozzle heats the thermal shrinkage film sleeved outside the section bar in the conveying process, so that the thermal shrinkage film can be quickly heated and wrapped on the surface of the section bar. The hot air of the mode directly acts on the heat shrinkage film, the heating amount of the section is very little, the required hot air volume is less, the preheating time required by equipment is very short, the time is saved, and the production continuity is high; in addition, because the required preheating time is extremely short, the energy consumption is lower when air is heated, compared with the traditional oven, the sectional material heat-shrinkable film with the same quantity and specification is heated, and the sectional material heat-shrinkable film heat-shrinkable device only needs to consume 2-5KW of the power of an electric heating system and is far lower than the traditional 30KW.

2. The hot air nozzles are arranged around the section bar conveying path, so that the heat-shrinkable film sleeved outside the section bar is heated more uniformly, the shrinking speeds of all the parts are basically the same, and the problem of partial deflection of the heat-shrinkable film is not easy to occur.

3. The hot air nozzles are arranged along the conveying direction of the section bar, so that the heating time of the heat shrinkage film outside the section bar can be ensured to be enough, and meanwhile, the conveying speed of the section bar does not need to be slowed down.

4. The hot air nozzle is arranged on the inner wall of the pressure stabilizing box body channel and communicated with the pressure stabilizing inner cavity, and is beneficial to uniform distribution of hot air. The air inlet pipe is provided with a heating structure, so that the heating area is small, the heating is fast, and the energy consumption is low. Let the air form wind in the pipeline earlier, wind becomes hot-blastly through the heating structure formation, then distributes hot-blastly to each hot-blast spout through steady voltage inner chamber, does not need the large tracts of land heating, utilizes hot-blastly mobility to make the pyrocondensation membrane large face be heated evenly.

5. The section bar and the pyrocondensation membrane after unreeling all pass section bar pyrocondensation membrane cover and establish the device, and section bar pyrocondensation membrane cover is established the device and is utilized two curb plates, roof, first bottom plate and second bottom plate to the guide effect of pyrocondensation membrane to can let the pyrocondensation membrane from the plane to be wound into the tube-shape gradually and wrap up in the section bar outside, need not artifical parcel, realizes automated production. When the cylindrical thermal shrinkage film passes through the thermal shrinkage film edge sealing structure, the thermal shrinkage film edge sealing structure enables the overlapped parts of the two side edges of the thermal shrinkage film to be attached together in an electrostatic or ultrasonic mode, so that the thermal shrinkage film is prevented from being re-expanded, and the subsequent processes of sealing and cutting the thermal shrinkage film, thermal shrinkage and the like are facilitated.

6. The first hypotenuse guide part of curb plate, the second hypotenuse guide part of first bottom plate and the third hypotenuse guide part of second bottom plate can play the guide effect to the pyrocondensation membrane, reduce the resistance simultaneously, prevent that the pyrocondensation membrane from blocking or being lacerated.

7. After the thermal shrinkage film is sleeved outside the section bar, the negative pressure film sucking conveyor belt can suck the thermal shrinkage film to prevent slipping.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front cross-sectional view of a profile heat shrink film heat shrink device;

FIG. 2 is a left side sectional view of the profile heat shrink film heat shrink device;

FIG. 3 is an enlarged view of the air inlet duct and the heat generating structure;

FIG. 4 is a schematic view of a section packaging line equipped with a section heat-shrinkable film heat-shrinking device;

FIG. 5 is a view showing a state of the heat shrinkable film cover device;

FIG. 6 is a front view of the profile shrink wrap device;

FIG. 7 is a bottom view of the profile shrink wrap device;

FIG. 8 is a top view of the profile shrink wrap sheathing apparatus;

FIG. 9 is a left side view of the profile shrink wrap device;

fig. 10 is an enlarged cross-sectional view of the negative pressure suction film conveyer belt.

Detailed Description

Embodiments of the present invention will now be described with reference to the accompanying drawings.

Examples

The utility model discloses a concrete embodiment is as shown in fig. 1 to fig. 10, a section bar pyrocondensation membrane heat shrink device, including device main part 1, device main part 1 is including setting up the hot-blast spout 11 in the section bar delivery path outside. The hot air nozzle 11 can be single, and the hot air nozzle 11 can also be arranged into a strip-shaped annular nozzle; in addition, the hot air nozzles 11 may also be at least two and arranged around the profile conveying path, that is, each hot air nozzle 11 is annularly surrounded, so that an annular heated space where the cross section of the profile is located is uniformly heated, or the hot air nozzles 11 may also be spirally arranged around the profile conveying path. The hot air nozzles 11 spray hot air in a dotted manner, and in this embodiment, the hot air nozzles 11 are multiple and arranged around the profile conveying path. The hot air nozzles 11 are arranged in a plurality of rows along the conveying direction of the section bar, and each row is provided with 12 hot air nozzles 11 arranged around the conveying path of the section bar.

In this embodiment, the device body 1 of the section bar thermal shrinkage film thermal shrinkage device further comprises a pressure stabilizing box body 12, and a channel 13 which is through along two ends of the section bar conveying path is arranged in the middle of the pressure stabilizing box body 12. The pressure stabilizing box body 12 is provided with an annular pressure stabilizing inner cavity 19 which is arranged around the outer side of the channel 13, and each hot air nozzle 11 is arranged on the inner wall of the channel 13 and is communicated with the pressure stabilizing inner cavity 19. The pressure stabilizing box body 12 is connected with an air inlet pipe 17. Besides this embodiment, each hot air nozzle 11 may be provided on a separate air jet device.

The number of the air inlet pipes 17 is two and the air inlet pipes are positioned at different positions of the pressure stabilizing box body 12, so that the hot air temperature of each area of the pressure stabilizing box body 12 is ensured to be consistent as much as possible, and in addition, more than two or one air inlet pipe 17 can be arranged according to the size of the pressure stabilizing box body 12. The air inlet pipe 17 is provided with a heating structure 18, and in this embodiment, the heating structure 18 includes an electric heating wire. The fan 14 is connected with the air inlet pipe 17 through the blast pipe 15, an electrical box 16 is arranged between the blast pipe 15 and the air inlet pipe 17, the electrical box 16 is electrically connected with the heating wire of the heating structure 18 to supply power for the heating wire, and simultaneously, the temperature of hot air is detected and controlled between 80 ℃ and 140 ℃. A box body bracket is connected below the pressure stabilizing box body 12, and the fan 14 is arranged on the pressure stabilizing box body 12.

The thermal shrinkage method of the section bar thermal shrinkage film comprises the following steps: the hot air nozzle 11 blows hot air to the surface of the heat shrinkage film sleeved on the outer side of the section bar, so that the heat shrinkage film is heated to shrink and wrap the section bar. The length of the area of the hot air nozzle 11 blowing hot air towards the surface of the heat shrinkable film is shorter than that of the section bar. When the hot air is blown to the surface of the heat shrinkable film by the hot air nozzle 11, the section and the area for blowing the hot air relatively move along the length direction of the section. The hot air blowing area is arranged around the section bar.

The distance between the hot air nozzle 11 and the section bar is less than 20cm. The outlet hot air temperature of the hot air nozzle 11 is 80-140 ℃. The smaller the distance between the hot air nozzle 11 and the section bar 10 is, the less heat is dissipated between the hot air sprayed out and the contact of the hot air with the heat shrinkable film 9, the more energy is saved, and the temperature can be selected according to the moving speed of the section bar 10 and the heat shrinkage characteristic of the heat shrinkable film 9.

The air volume of the area blowing hot air is 50-400 cubic meters per hour. In the embodiment, the air volume is 210 cubic meters per hour, the requirement of shrinking the heat-shrinkable film of the section 10 with the section width of about 10cm can be met, the length of the pressure stabilizing box body 12 (the length of the hot air blowing area) is about 1m, and the distance between the hot air nozzle 11 and the section is about 10-15 cm. The relative movement speed between the section bar and the hot air blowing area is 5cm/s-50cm/s, and in the embodiment, the conveying speed of the section bar is controlled to be about 10 cm/s. In addition, the length of the area for blowing hot air can be set within the range of 1cm to 150cm according to the temperature of hot air and the heat required for shrinkage of the heat shrinkable film.

Specifically, the cylindrical heat-shrinkable film 9 is firstly sleeved on the outer side of the profile 10, and then the two are passed through the channel 13 of the pressure-stabilizing box 12 at a relatively stable speed along the length direction of the profile 10. The hot air sprayed from the hot air nozzle 11 directly acts on the heat shrinkage film 9 to rapidly heat and shrink the heat shrinkage film 9, so that the heat shrinkage film 9 is tightly wrapped on the outer surface of the section bar 10.

In addition, a hot air return port 61 is provided at one side of the profile input end or/and the profile output end of the device main body 1, the hot air return port 61 is communicated with the front end of the air inlet pipe 17 through a return air pipe 62, and the return air pipe 62 is connected with a second fan 63. In this embodiment, the hot air return port 61 is provided in plural and is located at the tail of the pressure stabilizing box 12 in a ring shape. Through the negative pressure generated by the second fan 63, the hot air return port 61 can recycle the hot air in the annular pressure stabilizing cavity 19, which has contacted the thermal shrinkage film 9, and convey the hot air to the front end of the air inlet pipe 17 to be mixed with the fresh air, and the fresh air is heated by using the rest temperature. The electrical box 16 adjusts the heating power of the heating structure 18 by detecting the temperature of the fresh air passing through the input port of the air inlet pipe 17, thereby achieving the energy-saving effect.

The section bar heat shrinkable film heat shrinkable device can be used independently, manually conveys the section bars 10 and can also be used in a section bar packaging production line. As shown in fig. 4 to 10, a sectional material packaging production line includes a sectional material heat shrinkage film heat shrinkage device, and further includes a sectional material conveying mechanism at least disposed at one side of an input end or an output end of the sectional material heat shrinkage film heat shrinkage device.

In this embodiment, the front side of the input end of the section bar heat shrinkage film heat shrinkage device is provided with a section bar heat shrinkage film sleeving device 2. The front of the input end of the section bar thermal shrinkage film sleeving device 2 is provided with a thermal shrinkage film unwinding structure and a thermal shrinkage film guide roller 8 after the thermal shrinkage film 9 is unwound. The section bar heat shrinkable film sleeving device 2 comprises two side plates 21, a top plate 24, a first bottom plate 22 and a second bottom plate 23, and a second channel 29 is defined by the two side plates 21, the top plate 24, the first bottom plate 22 and the second bottom plate 23. The top plate 24 is connected between upper portions of the two side plates 21, and the first and second bottom plates 22 and 23 are connected to lower portions of the two side plates 21, respectively. The first bottom plate 22 is located below the second bottom plate 23 with a gap 291 therebetween, and the gap 291 is in communication with the second channel 29. A thermal shrinkage film edge sealing structure 3 is arranged below the rear part of the section bar thermal shrinkage film sleeving device 2. The heat shrink film edge sealing structure 3 includes an electrostatic edge sealer or an ultrasonic welder. In this embodiment, the thermal shrinkage film edge sealing structure 3 is an electrostatic edge sealing device. The section bar heat shrinkable film sleeving device 2 further comprises an opening 26 and a section bar supporting part 28 which are sequentially arranged behind the first bottom plate 22 and the second bottom plate 23, and two sides of the section bar supporting part 28 are respectively connected with the bottoms of the two side plates 21. The heat shrink film edge sealing structure 3 is located below the opening 26 of the section heat shrink film sleeving device 2. The upper part of the top plate 24 of the section bar thermal shrinkage film sheathing device 2 is connected with a mounting frame 27.

The side plate 21 is provided with a first bevel guide 25 on the front side. The front sides of the first base plate 22 and the second base plate 23 are provided with a second hypotenuse guide 221 and a third hypotenuse guide 231, respectively. The rear ends of the first oblique guide portions 25 of the two side plates 21 are connected to the front ends of the second oblique guide portion 221 and the third oblique guide portion 231, respectively. The front end edge of the top plate 24 is substantially flush with the front ends of the two first hypotenuse guides 25.

After the heat-shrinkable film 9 passes through the heat-shrinkable film guide roller 8, the middle part of the heat-shrinkable film 9 extends into and passes through the second channel 29, and the middle part of the heat-shrinkable film 9 is contacted with the front end of the top plate 24. The two sides of the heat-shrinkable film 9 respectively bypass the first bevel edge guide parts 25 at the two sides at the inlet of the second channel 29 and are stuck to the outer side of the side plate 21 upwards, one side edge of the heat-shrinkable film 9 obliquely bypasses the lower edge of the side plate 21 downwards along the outer surface of the side plate 21 at the side, passes through the lower surface of the second bottom plate 23 and is positioned in the gap 291; the other edge of the heat shrinkable film 9 obliquely passes downward around the lower edge of the side plate 21 along the outer surface of the side plate 21 on the side, passes through the lower surface of the first bottom plate 22, passes around the side edge of the first bottom plate 22, and enters the gap 291 upward, and then overlaps with the other edge of the heat shrinkable film 9.

A negative pressure film sucking conveying belt 4 and a thermal shrinkage film sealing and cutting structure 5 are sequentially arranged between the output end of the section thermal shrinkage film sleeving device 2 and the input end of the section thermal shrinkage film thermal shrinkage device. A plurality of air suction holes 41 are distributed on the negative pressure film suction conveying belt 4, a negative pressure groove 42 is arranged below the conveying section of the negative pressure film suction conveying belt 4, the negative pressure groove 42 corresponds to the plurality of air suction holes 41 on the conveying section of the negative pressure film suction conveying belt 4, and the negative pressure groove 42 is connected with a negative pressure pipe 43. The suction holes 41 of the conveying section of the negative pressure film suction conveying belt 4 generate adsorption force to the heat shrinkage film 9 sleeved outside the section bar 10 under the action of the negative pressure pipe 43.

During the use, utilize negative pressure to inhale membrane conveyer belt 4 and adsorb the shrink film 9 of cover establishing outside section bar 10 fixedly, can be with lieing in section bar shrink film cover and establish the shrink film 9 of device 2 department and stimulate toward section bar 10 direction of delivery when membrane conveyer belt 4 is inhaled to the negative pressure, realize forming the tube-shape gradually in section bar shrink film cover and establish device 2 department through shrink film 9 of shrink film guide roll 8 to wrap up in the section bar 10 outside that passes from section bar shrink film cover and establish second passageway 29 of device 2. The parcel of pyrocondensation membrane 9 is behind section bar 10 outside and when passing through pyrocondensation membrane banding structure 3 top, and pyrocondensation membrane banding structure 3 produces static and the laminating is in the same place through the edge that makes 9 both sides of pyrocondensation membrane overlap, prevents that pyrocondensation membrane 9 from scattering.

In this embodiment, section bar conveying mechanism of section bar packaging production line still includes first conveyer belt 6 and second conveyer belt 7, and first conveyer belt 6 sets up and seals between cutting structure 5 and section bar heat shrinkable film heat shrink device's device main part 1 at the pyrocondensation membrane, and second conveyer belt 7 sets up at section bar heat shrinkable film heat shrink device's device main part 1 output rear.

The present invention has been described in connection with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, and is intended to cover various modifications, equivalent combinations, which are made according to the essence of the present invention.

Claims (10)

1. The utility model provides a section bar pyrocondensation membrane heat shrink device which characterized in that, includes device main part (1), and device main part (1) is including setting up hot-blast spout (11) in the section bar delivery path outside.

2. A profile heat shrink film heat shrink device according to claim 1 characterised in that the hot air jets (11) are at least two and arranged around the profile transport path.

3. The profile heat shrink film heat shrink device according to claim 2, wherein the hot air nozzles (11) are arranged along the profile conveying direction.

4. A profile heat shrink film heat shrink device according to claim 1, 2 or 3, characterized in that the device body (1) comprises a pressure stabilizing box body (12), and the middle part of the pressure stabilizing box body (12) is provided with a channel (13) which is communicated along two ends of a profile conveying path; an annular pressure stabilizing inner cavity (19) arranged around the outer side of the channel (13) is formed in the pressure stabilizing box body (12), and the hot air nozzle (11) is arranged on the inner wall of the channel (13) and communicated with the pressure stabilizing inner cavity (19); the pressure stabilizing box body (12) is connected with an air inlet pipe (17); a hot air return port (61) is arranged at one side of the section bar input end or/and the section bar output end of the device main body (1), the hot air return port (61) is communicated with the front end of the air inlet pipe (17) through an air return pipe (62), and the air return pipe (62) is connected with a second fan (63).

5. The profile heat shrink film heat shrink device according to claim 4, wherein a heating structure (18) is arranged on the air inlet pipe (17); the air inlet pipe (17) is connected with a fan (14).

6. A profile packaging line, comprising the profile heat shrink film heat shrink device of claim 1, and further comprising a profile conveying mechanism provided at least on one side of an input end or an output end of the profile heat shrink film heat shrink device.

7. A section bar packaging production line according to claim 6, characterized in that a section bar heat-shrinkable film sleeving device (2) is arranged on the front side of the input end of the section bar heat-shrinkable film heat-shrinking device.

8. A packaging line according to claim 7, characterized in that said profile shrink film sheathing device (2) comprises two side plates (21), a top plate (24), a first bottom plate (22) and a second bottom plate (23); the top plate (24) is connected between the upper parts of the two side plates (21), and the first bottom plate (22) and the second bottom plate (23) are respectively connected to the lower parts of the two side plates (21); the first bottom plate (22) is positioned below the second bottom plate (23) and arranged at a gap; a thermal shrinkage film edge sealing structure (3) is arranged below the rear part of the section bar thermal shrinkage film sleeving device (2).

9. A section packaging line according to claim 8, characterized in that the side plates (21) are provided with a first bevel guide (25) on the front side; the front sides of the first bottom plate (22) and the second bottom plate (23) are respectively provided with a second bevel edge guide part (221) and a third bevel edge guide part (231); the rear ends of the first bevel edge guide parts (25) of the two side plates (21) are respectively connected with the front ends of the second bevel edge guide part (221) and the third bevel edge guide part (231); the front side of the input end of the section bar thermal shrinkage film sleeving device (2) is provided with a thermal shrinkage film unwinding structure.

10. A section packaging line according to claim 8, characterized in that said heat-shrink film edging structure (3) comprises an electrostatic edger or an ultrasonic welder; and a negative pressure film suction conveying belt (4) and a thermal shrinkage film sealing and cutting structure (5) are sequentially arranged between the output end of the section thermal shrinkage film sleeving device (2) and the input end of the section thermal shrinkage film thermal shrinkage device.

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