Hot stretching device for plastic steel belt production

Abstract

The utility model discloses a hot stretching device for plastic steel belt production, and particularly relates to the technical field of plastic steel belt production, the hot stretching device comprises a drying box body and a plastic steel belt, the drying box body comprises a shell, a stretching mechanism is arranged in the shell, and the stretching mechanism comprises a plurality of stretching rollers which are arranged in the shell in a staggered manner; a feeding end and a discharging end are arranged on the left side and the right side of the shell respectively, a plastic steel belt enters the shell from the feeding end and moves out of the shell from the discharging end, the end, moving out of the shell, of the plastic steel belt is externally connected with a traction device, and the plastic steel belt is sequentially wound on the multiple stretching rollers in a Z shape in the same vertical horizontal plane. By arranging the drying mechanism, hot air flow can be supplied from the side face of the plastic steel belt to dry the plastic steel belt, and therefore the situation that the plastic steel belt is blocked up and down, and the drying effect is affected is avoided; when hot air flows through the surfaces of the upper side and the lower side of the plastic steel belt, water vapor can be taken away and discharged from the exhaust port, and the water vapor is prevented from being accumulated in the drying box.

Description

TECHNICAL FIELD

[0001] The utility model relates to plastic steel strip production technical field more specifically, the utility model relates to a kind of plastic steel strip production hot stretching device. BACKGROUND

[0002] Plastic steel strip, also known as PET packing belt or polyester packing belt, is a high-strength strapping material used in the packaging field. It combines the lightness of plastic and the strength of steel, with advantages such as high strength, corrosion resistance, light weight, and wide adaptability. Therefore, it is widely used in the logistics industry, manufacturing industry, and construction industry, etc.

[0003] During production, plastic steel strip usually goes through processing steps such as raw material mixing, extrusion molding, cooling and setting, and traction molding. After the strip is extruded from the mold, it will immediately enter a cooling water tank for preliminary cooling and setting, so that the strip quickly changes from a liquid state to a solid state and is basically set, but at this time the strip still has a certain temperature and softening phenomenon. The cooled and set strip then goes through multiple stretching and molding processes to complete the processing. Since the strip that has been preliminarily cooled in the cooling water tank may contain a small amount of water, the presence of water will reduce the strength and toughness of the strip, which may cause the strip to break during subsequent processing. Therefore, after the strip is removed from the water, it usually passes through a drying oven to completely remove the residual water on the surface and inside of the strip.

[0004] However, the existing plastic steel strip hot stretching device still has many shortcomings in actual use. For example, in order to not occupy too much floor area in the drying oven while ensuring that the strip has enough drying time in the drying oven, multiple stretching rollers are usually arranged in the drying oven, and the strip is wound through the multiple stretching rollers in a Z-shaped manner to extend the passing time of the strip in the drying oven. In addition, in order to avoid the strip from shifting on the stretching rollers when moving, the strip always stays in the same vertical plane when passing through different stretching rollers. Therefore, the strip passes through the drying oven in a stacked state from top to bottom. Since the heat radiation generated by the heating device is usually from bottom to top, in order to improve the utilization efficiency of the heating device, the heating device in the drying oven is usually arranged below the stretching rollers. However, when the strip passes above the heating device from below, the water on the surface of the strip will quickly evaporate to form water vapor, which will accumulate in the upper part of the drying oven with the rising of hot air, affecting the drying efficiency of the strip in the upper part of the drying oven. SUMMARY

[0005] The utility model provides a kind of plastic steel band production hot stretching device, the problem to be solved is: the current plastic steel band hot stretching device when actual use, strip usually presents Z shape in turn and is set through multiple groups of stretching rollers, and the heating device of the lower position of stretching roller arranged in drying cabinet can make the moisture of strip surface evaporate, and water vapor will accumulate in the upper portion of drying cabinet with hot air rising, the drying efficiency of strip in the upper portion of drying cabinet is affected.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of plastic steel band production hot stretching device, comprising: drying cabinet body and plastic steel band, drying cabinet body includes shell, stretching mechanism is arranged in shell, and stretching mechanism includes multiple stretching rollers staggered in shell;

[0007] The left and right sides of shell are respectively provided with feeding end and discharging end, plastic steel band enters shell by feeding end, and is removed by discharging end, and the end of plastic steel band removed from shell is connected with traction device, and plastic steel band presents Z shape in turn and is set on multiple stretching rollers in the same vertical plane, drying mechanism is arranged in shell, and drying mechanism includes air bellow, the air outlet end of air bellow faces plastic steel band, and the airflow direction of air bellow exhaust is perpendicular to the vertical plane where plastic steel band is located.

[0008] In a preferred embodiment, a plurality of rotating shafts are rotatably arranged on the inner wall of the rear side of the shell, the stretching rollers are respectively sleeved on the corresponding rotating shafts, and the rear side of the shell is provided with a plurality of motors, and the end of the rotating shaft away from the stretching roller is fixedly connected with the output shaft of the corresponding motor.

[0009] In a preferred embodiment, the stretching roller is detachably arranged on the corresponding rotating shaft.

[0010] In a preferred embodiment, the air bellow is fixedly arranged on the inner wall of the rear side of the shell, and the air bellow is sequentially provided with an air pipe assembly, a filter element and a flow equalizing plate from back to front, and the air pipe assembly is connected with a hot air source.

[0011] In a preferred embodiment, a slide rail is arranged on the top inner wall of the shell, a slide block is arranged on the top of the air bellow, and the slide block is matched with the slide rail.

[0012] In a preferred embodiment, a protective door is rotatably arranged on the front side of the shell, and an exhaust port is arranged on the protective door.

[0013] The utility model has the advantages that:

[0014] The utility model sets up drying mechanism, so that hot air current can be supplied from the side of plastic steel band to dry plastic steel band, so as to avoid the influence of drying effect caused by the upper and lower shielding of plastic steel band; when hot air current passes through the upper and lower surfaces of plastic steel band, water vapor is carried away and discharged from the exhaust port, so that water vapor is prevented from accumulating in drying cabinet.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the utility model.

[0016] Figure 2 is a front view structural schematic view of the utility model.

[0017] Figure 3 is a structural schematic view of the motor part of the utility model.

[0018] Figure 4 is a structural schematic view of the drying mechanism part of the utility model.

[0019] The figure sign is: 1, drying box body;11, shell;12, slide rail;13, protective door;14, exhaust port;2, plastic steel belt;3, stretching mechanism;31, rotating shaft;32, stretching roller;33, motor;4, drying mechanism;41, air bellow;42, air pipe assembly;43, filter element;44, flow equalizing plate. DETAILED DESCRIPTION

[0020] The following further describes the present application in detail with reference to the drawings, and it is necessary to point out here that the following detailed description is only used to further illustrate the present application, and cannot be understood as limiting the protection scope of the present application, and the skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0021] Referring to the drawings accompanying the specification Figures 1 to 4 A plastic steel belt production hot stretching device, comprising: a drying box body 1 and a plastic steel belt 2, the drying box body 1 comprises a shell 11, the shell 11 is provided with a stretching mechanism 3, the stretching mechanism 3 comprises a plurality of stretching rollers 32 staggered arranged in the shell 11;

[0022] The left and right sides of the shell 11 are respectively provided with a feeding end and a discharging end, the plastic steel belt 2 enters the shell 11 from the feeding end and moves out from the discharging end, and an end of the plastic steel belt 2 moving out of the shell 11 is connected with a traction device, the plastic steel belt 2 is sequentially wound on the plurality of stretching rollers 32 in a Z-shaped manner in the same vertical plane, the shell 11 is provided with a drying mechanism 4, the drying mechanism 4 comprises an air bellow 41, the air outlet end of the air bellow 41 faces the plastic steel belt 2, and the airflow direction of the air bellow 41 is perpendicular to the vertical plane where the plastic steel belt 2 is located.

[0023] It should be noted that the number of stretching rollers 32 can be set according to actual conditions, and the motor 33 is the same, and the rotating speed of the motor 33 can be controlled individually.

[0024] In the embodiment, the specific implementation scenario is that the plastic steel belt 2 passes through the drying box body 1 through the traction mechanism, when the plastic steel belt 2 is in the shell 11, the plastic steel belt 2 is elongated by being wound on the stretching roller 32, at the same time, the external hot air source is started, the horizontal air flow is uniformly blown to the plastic steel belt 2 through the flow uniformizing plate 44, and when the hot air flow passes through the upper and lower surfaces of the plastic steel belt, the water vapor is taken away and discharged from the exhaust port 14, thereby avoiding the accumulation of water vapor in the drying box and enabling the plastic steel belt 2 to be dried in all directions.

[0025] Referring to the drawings Figure 1 and Figure 3 In the embodiment, a plurality of rotating shafts 31 are rotatably arranged on the rear inner wall of the shell 11, the stretching rollers 32 are respectively sleeved on the corresponding rotating shafts 31, a plurality of motors 33 are arranged on the rear side of the shell 11, and the end of the rotating shaft 31 away from the stretching roller 32 is fixedly connected with the output shaft of the corresponding motor 33.

[0026] It should be noted that by separately controlling the rotating speed of the motor 33, the plastic steel belt 2 can be subjected to the stretching force when being wound through the two motors 33 with different rotating speeds, thereby enabling the plastic steel belt 2 to be stretched, and the corresponding tension can be controlled by controlling the rotating speed difference, thereby meeting the requirements of the stretching width, thickness and the like.

[0027] Referring to the drawings Figure 1 and Figure 2 In the embodiment, the stretching roller 32 is detachably arranged on the corresponding rotating shaft 31.

[0028] It should be noted that the detachable stretching roller 32 can facilitate the staff to debug and maintain the equipment.

[0029] Referring to the drawings Figure 2 and Figure 4 In the embodiment, the air bellow 41 is fixedly arranged on the rear inner wall of the shell 11, the air bellow 41 sequentially has the air pipe assembly 42, the filter element 43 and the flow uniformizing plate 44 arranged from rear to front, and the air pipe assembly 42 is externally connected with the hot air source.

[0030] It should be noted that the temperature of the hot air source externally connected with the air bellow 41 can be adjusted according to the actual situation, and the flow uniformizing plate 44 can uniformly blow the hot air flow horizontally to the plastic steel belt 2.

[0031] Referring to the drawings Figure 2 and Figure 4 In the embodiment, the top inner wall of the shell 11 is provided with a sliding rail 12, the top of the air bellow 41 is provided with a sliding block, and the sliding block is matched with the sliding rail 12.

[0032] It should be noted that the slide rail 12 can facilitate the staff to debug and overhaul the air bellow, and facilitate the regular replacement of the filter element 43 to maintain the dust filtering effect.

[0033] Referring to the drawings Figure 1 and Figure 3 In the embodiment, the front side of the shell 11 is rotatably provided with a protection door 13, and the protection door 13 is provided with an exhaust port 14.

[0034] It should be noted that the water vapor evaporated from the plastic steel belt 2 is finally discharged from the exhaust port 14 to avoid accumulation in the shell 11, and a dust cover can be provided on the exhaust port 14.

[0035] The above-described embodiments only express several implementation manners of the utility model, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which are all within the protection scope of the utility model.

Claims

1. A hot drawing apparatus for the production of a plastic steel strip comprising: The drying box body (1) and the plastic steel belt (2), the drying box body (1) includes a shell (11), a stretching mechanism (3) is arranged in the shell (11), the stretching mechanism (3) includes a plurality of stretching rollers (32) which are staggered in the shell (11); The left and right sides of the shell (11) are respectively provided with an inlet end and an outlet end, the plastic steel belt (2) enters the shell (11) from the inlet end and moves out from the outlet end, and an end of the plastic steel belt (2) moving out of the shell (11) is connected with a traction device, characterized in that the plastic steel belt (2) is sequentially wound on a plurality of stretching rollers (32) in a Z-shaped shape in the same vertical plane, the shell (11) is provided with a drying mechanism (4), the drying mechanism (4) includes a wind box (41), the air outlet end of the wind box (41) faces the plastic steel belt (2), and the airflow direction of the wind box (41) is perpendicular to the vertical plane where the plastic steel belt (2) is located.

2. A hot stretching device for producing a plastic steel belt according to claim 1, wherein A plurality of rotating shafts (31) are rotatably arranged on the inner wall of the rear side of the shell (11), the stretching rollers (32) are respectively sleeved on the corresponding rotating shafts (31), and a plurality of motors (33) are arranged on the rear side of the shell (11), one end of the rotating shaft (31) away from the stretching roller (32) is fixedly connected with the output shaft of the corresponding motor (33).

3. A hot stretching device for producing a plastic steel belt according to claim 2, wherein The stretching roller (32) is detachably arranged on the corresponding rotating shaft (31).

4. A hot stretching device for producing a plastic steel belt according to claim 3, wherein The wind box (41) is fixedly arranged on the inner wall of the rear side of the shell (11), the wind box (41) is sequentially provided with a wind pipe assembly (42), a filter element (43) and a flow uniformizing plate (44) from back to front, and the wind pipe assembly (42) is connected with a hot gas source.

5. A hot stretching device for producing a plastic steel belt according to claim 4, wherein A sliding rail (12) is arranged on the top inner wall of the shell (11), a sliding block is arranged on the top of the wind box (41), and the sliding block is matched with the sliding rail (12).

6. A hot stretching device for producing a plastic steel belt according to claim 5, wherein A protective door (13) is rotatably arranged on the front side of the shell (11), and an exhaust port (14) is arranged on the protective door (13).

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