Heat dissipation conveying roller for plastic film after film blowing

Abstract

The utility model discloses a blown plastic film heat dissipation conveying roller which comprises a base, two sets of supporting plates are installed at the upper end of the base, and the blown plastic film heat dissipation conveying roller further comprises a first heat dissipation roller located on one side between the two sets of supporting plates, and a second heat dissipation roller located on the other side between the two sets of supporting plates. The carrier roller is positioned on the other side between the two groups of supporting plates; the compression roller is positioned on the upper side of the carrier roller; the second heat dissipation roller is located on the upper side between the two sets of supporting plates; the two limiting pieces are connected to the outer surface of the first heat dissipation roller in a sleeving mode. The first heat dissipation roller and the second heat dissipation roller are arranged to cool a plastic film, in the conveying process of the plastic film, condensate water is input into the second heat dissipation roller and the first heat dissipation roller through the water inlet pipe, and the second heat dissipation roller and the first heat dissipation roller are cooled; and the cooled second heat dissipation roller and the cooled first heat dissipation roller make contact with the plastic films to generate heat exchange, the plastic films are cooled, and the situation that the quality of finished products is affected due to mutual adhesion of the plastic films is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat dissipation conveying roller in the technical field, concretely to a plastic film heat dissipation conveying roller after blowing film. BACKGROUND

[0002] Plastic bags are bags made of plastic (commonly used plastics include polypropylene, polyester, nylon, etc.), which are extremely light in weight, easy to carry and use, and are essential items in people's daily life, often used to pack other items.

[0003] The blowing film machine is one of the key equipment in the production process of plastic bags. Its main function is to melt the plastic particles after heating and blow them into a film. This is the first step in the production process of plastic bags, and it is also a crucial step. The blowing film machine can continuously and stably produce high-quality plastic film, while improving production efficiency and reducing production cost. This is crucial for large-scale production of plastic bags.

[0004] However, after the blowing film machine blows the plastic film, the temperature of the plastic film is relatively high, which can easily cause the plastic film to stick to each other, affecting the quality of the product. At the same time, the high temperature can also cause the plastic film to deform, twist or produce other defects. INVENTION CONTENTS

[0005] The utility model aims at providing a plastic film heat dissipation conveying roller after blowing film to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a plastic film heat dissipation conveying roller after blowing film, comprising a base, two groups of support plates are installed on the upper end of the base, further comprising: a first heat dissipation roller, which is located on one side between the two groups of support plates; a carrier roller, which is located on the other side between the two groups of support plates; a compression roller, which is located on the upper side of the carrier roller; a second heat dissipation roller, which is located on the upper side between the two groups of support plates; two limiting pieces, which are sleeved on the outer surface of the first heat dissipation roller.

[0007] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0008] Preferably, the first heat dissipation roller and the second heat dissipation roller are respectively connected with the support plates through the support pipes on both sides, and the inner part of the first heat dissipation roller and the second heat dissipation roller is respectively evenly provided with a plurality of shunt channels.

[0009] Preferably, one group of support plates is provided with two water inlet pipes on one side of its outer end, one water inlet pipe corresponds to the first heat dissipation roller, and the other water inlet pipe corresponds to the second heat dissipation roller; another group of support plates is provided with two water outlet pipes on one side of its outer end, one water outlet pipe corresponds to the first heat dissipation roller, and the other water outlet pipe corresponds to the second heat dissipation roller; the two water inlet pipes are respectively connected to the corresponding support pipes, and every two support pipes are connected to the corresponding diversion channels.

[0010] Preferably, the supporting roller is rotatably connected to the support plate via a support shaft, supports are respectively provided on both sides of the outer end of the pressure roller, the pressure roller is rotatably connected between the two supports, and a hydraulic rod is provided on the lower side of the support.

[0011] Preferably, a first transmission wheel is fixed to the outer end of one support tube connected to the first heat dissipation roller, a second transmission roller is fixed to the outer ends of the two support tubes connected to the second heat dissipation roller, and a driving wheel is fixed to the outer end of the support shaft on one side of the roller;

[0012] The first transmission wheel is connected to a second transmission roller through an eight-shaped belt transmission, and the driving wheel is connected to another second transmission roller through a synchronous belt transmission.

[0013] Preferably, the two limiting plates are symmetrically arranged, and a bracket fixed to the base is respectively provided on the side of the two limiting plates away from each other. A screw rod is rotatably connected between the two brackets, and the screw rod is threadedly connected to the two limiting plates, and the thread directions of the two limiting plates and the screw rod are opposite.

[0014] Preferably, a plurality of rollers are movably provided inside the limiting plate, and the limiting plate contacts the outer surface of the first heat dissipation roller through the rollers. Beneficial effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] The utility model cools down the plastic film by arranging a first heat dissipation roller and a second heat dissipation roller. During the conveying process of the plastic film, condensed water is input into the second heat dissipation roller and the first heat dissipation roller through a water inlet pipe to cool down the second heat dissipation roller and the first heat dissipation roller. After the cooling, the second heat dissipation roller and the first heat dissipation roller come into contact with the plastic film to generate heat exchange, thereby cooling the plastic film and preventing the plastic films from sticking to each other and affecting the quality of the finished product.

[0017] The plastic film can be limited by two limiting pieces, and the limiting piece can be driven to translate by the rotation of the screw rod to adjust the distance between the two limiting pieces so that the distance between the two limiting pieces can adapt to the width of the plastic film, thereby improving the adaptability of the limiting piece when limiting the plastic film and improving the limiting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the partial cross-sectional structure of the first heat dissipation roller of the utility model.

[0022] In the figure: 1. Base; 11. Support plate; 2. First heat dissipation roller; 21. First transmission wheel; 3. Support roller; 31. Drive wheel; 4. Pressure roller; 41. Support; 42. Hydraulic rod; 5. Second heat dissipation roller; 51. Second transmission roller; 6. Synchronous belt; 7. Figure-eight belt; 8. Limiting plate; 81. Bracket; 82. Screw rod; 801. Roller; 9. Diversion channel; 91. Support pipe; 92. Water inlet pipe; 93. Water outlet pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the embodiments of this application, Figures 1-4 A heat dissipation conveying roller for plastic film after film blowing, comprising a base 1, two sets of support plates 11 are installed on the upper end of the base 1, a first heat dissipation roller 2 is installed on one side between the two sets of support plates 11, a support roller 3 is installed on the other side between the two sets of support plates 11, a pressure roller 4 is installed on the upper side of the support roller 3, and a second heat dissipation roller 5 is installed on the upper side between the two sets of support plates 11;

[0025] The first heat dissipation roller 2 and the second heat dissipation roller 5 are rotatably connected to the support plate 11 respectively through the support tubes 91 on both sides. Two water inlet pipes 92 are installed on one side of the outer end of one group of support plates 11, one water inlet pipe 92 corresponds to the first heat dissipation roller 2, and the other water inlet pipe 92 corresponds to the second heat dissipation roller 5. Two water outlet pipes 93 are installed on one side of the outer end of the other group of support plates 11, one water outlet pipe 93 corresponds to the first heat dissipation roller 2, and the other water outlet pipe 93 corresponds to the second heat dissipation roller 5. The two water inlet pipes 92 are respectively connected to the corresponding support pipes 91, and a number of diversion channels 9 are evenly opened inside the first heat dissipation roller 2 and the second heat dissipation roller 5, and every two support tubes 91 are connected to the corresponding diversion channels 9. The first heat dissipation roller 2 or the second heat dissipation roller 5 is connected, and condensed water can be transported to the inside of the corresponding first heat dissipation roller 2 or the second heat dissipation roller 5 through the water inlet pipe 92 to cool the first heat dissipation roller 2 and the second heat dissipation roller 5, so that the first heat dissipation roller 2 and the second heat dissipation roller 5 can exchange heat with the plastic film after film blowing, and cool the plastic film. The first heat dissipation roller 2 and the second heat dissipation roller 5 are in contact with the plastic film, so as to achieve a cooling effect and prevent the plastic films from sticking to each other and affecting the quality of the finished product. The spent condensed water can be discharged through the water outlet pipe 93, and valves are provided inside the water inlet pipe 92 and the water outlet pipe 93 to control the inlet and discharge of condensed water, and the water inlet pipe 92 can be connected to an existing water delivery equipment such as a water pump to transport the condensed water to the water inlet pipe 92;

[0026] The roller 3 is rotatably connected to the support plate 11 through a support shaft. Supports 41 are respectively provided on both sides of the outer end of the pressure roller 4. The pressure roller 4 is rotatably connected between the two supports 41. A hydraulic rod 42 is provided on the lower side of the support 41. The hydraulic rod 42 is fixed to the upper end of the base 1. The output end of the hydraulic rod 42 is fixed to the support 41. The pressure roller 4 can be driven to rise and fall by the extension and contraction of the hydraulic rod 42. When the pressure roller 4 is lowered, it can clamp the plastic film with the roller 3 to limit the position.

[0027] The outer ends of the two support tubes 91 connected to the first heat dissipation roller 2 are fixed with a first transmission wheel 21, and the outer ends of the two support tubes 91 connected to the second heat dissipation roller 5 are fixed with a second transmission roller 51. The outer ends of the support shafts on one side of the roller 3 are fixed with a driving wheel 31. The first transmission wheel 21 and the second transmission roller 51 on one side are connected by an eight-shaped belt 7. The transmission action of the eight-shaped belt 7 makes the second heat dissipation roller 5 and the first heat dissipation roller 2 rotate in opposite directions, so as to facilitate the conveying of the plastic film. The driving wheel 31 and the second transmission roller 51 on the other side are connected by a synchronous belt 6. The transmission action of the synchronous belt 6 makes the second heat dissipation roller 5 rotate synchronously when the roller 3 rotates. At the same time, a driving motor is installed on one side of the outer end of the support plate 11, and the output shaft of the driving motor is connected to the support shaft on one side of the roller 3. The specific connection method can adopt the existing technology. The driving motor can drive the roller 3 to rotate, so that the roller 3 and the second heat dissipation roller 5 rotate in the same direction, and the second heat dissipation roller 5 and the first heat dissipation roller 2 rotate in the opposite direction.

[0028] When using the heat dissipation conveying roller, the plastic film produced by the film blowing machine passes through the lower side of the first heat dissipation roller 2, passes through the upper side of the second heat dissipation roller 5, and finally passes between the support roller 3 and the pressure roller 4. After starting the drive motor, the support roller 3, the second heat dissipation roller 5 and the first heat dissipation roller 2 rotate to convey the plastic film, and the plastic film is sent out from between the support roller 3 and the pressure roller 4. During this process, condensed water is input into the second heat dissipation roller 5 and the first heat dissipation roller 2 through the water inlet pipe 92 to cool the second heat dissipation roller 5 and the first heat dissipation roller 2. After cooling, the second heat dissipation roller 5 and the first heat dissipation roller 2 come into contact with the plastic film to generate heat exchange, cool the plastic film, and prevent the plastic films from sticking to each other and affecting the quality of the finished product.

[0029] In another embodiment, Figure 2 and Figure 4 The outer surface of the first heat dissipation roller 2 is sleeved with two limit pieces 8, and the two limit pieces 8 are symmetrically arranged. The plastic film is limited by the two limit pieces 8 to reduce the skewness of the plastic film during transportation. The two limit pieces 8 are respectively provided with a bracket 81 fixed to the base 1 on the side away from each other. A screw rod 82 is rotatably connected between the two brackets 81, and the screw rod 82 is threadedly connected to the two limit pieces 8. The thread directions of the two limit pieces 8 and the screw rod 82 at the connection point are opposite. The rotation of the screw rod 82 can drive the limit piece 8 to translate, so as to adjust the distance between the two limit pieces 8, so that the distance between the two limit pieces 8 can adapt to the width of the plastic film, thereby improving the adaptability of the limit piece 8 when limiting the plastic film and improving the limiting effect.

[0030] Furthermore, the limiting plate 8 is provided with several rollers 801 for internal movement. The limiting plate 8 contacts the outer surface of the first heat dissipation roller 2 through the rollers 801, so as to reduce the friction force when the limiting plate 8 slides on the outside of the first heat dissipation roller 2, so that the translation of the limiting plate 8 is smoother.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation conveying roller for plastic film after film blowing, comprising a base (1), the upper end of which is provided with two sets of support plates (11), characterized in that: Also includes: A first heat dissipation roller (2), which is located on one side between the two sets of support plates (11); A roller (3) located on the other side between the two sets of support plates (11); A pressure roller (4) located on the upper side of the support roller (3); a second heat dissipation roller (5), which is located on the upper side between the two sets of support plates (11); Two limiting plates (8) are sleeved on the outer surface of the first heat dissipation roller (2).

2. The heat dissipation conveying roller for plastic film after film blowing according to claim 1, characterized in that: The first heat dissipation roller (2) and the second heat dissipation roller (5) are rotatably connected to the support plate (11) via support tubes (91) on both sides, and a plurality of diversion channels (9) are evenly arranged inside the first heat dissipation roller (2) and the second heat dissipation roller (5).

3. The heat dissipation conveying roller for plastic film after film blowing according to claim 2, characterized in that: One side of the outer end of one group of support plates (11) is provided with two water inlet pipes (92), one water inlet pipe (92) corresponds to the first heat dissipation roller (2), and the other water inlet pipe (92) corresponds to the second heat dissipation roller (5); one side of the outer end of another group of support plates (11) is provided with two water outlet pipes (93), one water outlet pipe (93) corresponds to the first heat dissipation roller (2), and the other water outlet pipe (93) corresponds to the second heat dissipation roller (5); the two water inlet pipes (92) are respectively connected to the corresponding support pipes (91), and every two support pipes (91) are connected to the corresponding diversion channel (9).

4. The heat dissipation conveying roller for plastic film after film blowing according to claim 1, characterized in that: The supporting roller (3) is rotatably connected to the support plate (11) via a support shaft. Supports (41) are respectively provided on both sides of the outer end of the pressure roller (4). The pressure roller (4) is rotatably connected between the two supports (41). A hydraulic rod (42) is provided on the lower side of the support (41).

5. The heat dissipation conveying roller for plastic film after film blowing according to claim 1, characterized in that: A first transmission wheel (21) is fixed to the outer end of a support tube (91) connected to the first heat dissipation roller (2), a second transmission roller (51) is fixed to the outer ends of two support tubes (91) connected to the second heat dissipation roller (5), and a driving wheel (31) is fixed to the outer end of a support shaft on one side of the roller (3); The first transmission wheel (21) is connected to a second transmission roller (51) via an eight-shaped belt (7), and the driving wheel (31) is connected to another second transmission roller (51) via a synchronous belt (6).

6. The heat dissipation conveying roller for plastic film after film blowing according to claim 1, characterized in that: The two limiting pieces (8) are symmetrically arranged. A bracket (81) fixed to the base (1) is respectively arranged on one side of the two limiting pieces (8) away from each other. A screw rod (82) is rotatably connected between the two brackets (81). The screw rod (82) is threadedly connected to the two limiting pieces (8). The thread directions of the connection between the two limiting pieces (8) and the screw rod (82) are opposite.

7. The heat dissipation conveying roller for plastic film after film blowing according to claim 1, characterized in that: The limiting plate (8) is movably provided with a plurality of rollers (801) inside, and the limiting plate (8) contacts the outer surface of the first heat dissipation roller (2) through the rollers (801).

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