Rubber roller water spraying mechanism

Abstract

The utility model relates to a rubber roller water spraying mechanism which comprises an inner pipe with water inlets formed in the two ends and an outer shell packaged outside the inner pipe, a plurality of water outlet holes are formed in the inner pipe, and a water spraying opening is formed in the outer shell. The shell comprises a U-shaped groove-shaped body and a sealing cover covering an opening of the body. A first long edge of the sealing cover is connected to the end face of a first side plate of the body in a sealed mode. A plurality of screw holes are formed in the outer side face of the sealing cover in the length direction of the sealing cover, a support is directly or indirectly fixedly arranged on the body, through holes corresponding to the screw holes in a one-to-one mode are formed in the support, and bolts penetrate through the through holes in a one-to-one mode to be connected to the screw holes in a bolted mode. A slit serving as a water outlet can be formed between the second long edge of the sealing cover and the end face of the second side plate of the body. The water spraying device has the advantages that the water outlet gap adjusting assembly is additionally arranged, so that the water outlet gap is changed from the original non-adjustable mode to the adjustable mode, the water spraying distance and the uniformity of a water spraying water curtain can be adjusted, and the cooling effect and uniformity of the roller surface are greatly improved.

Description

Technical Field

[0001] The utility model relates to a film casting machine, in particular to a rubber roller water spraying mechanism. Background Art

[0002] A casting film machine is a device for producing unstretched and non-oriented flat extrusion films through a melt casting and quenching process. When preparing plastic films by the casting method, the raw materials are first plasticized and melted by an extruder, then extruded through a forming die, and the sheet-like film is cast onto the surface of a steadily rotating cooling roller. The film is cooled and shaped on the roller, and then the product is wound up after traction and edge trimming.

[0003] In the above film cooling process, the cooling is achieved in two ways: one is that a cooling water cavity is arranged inside the roller, and the cooling water flows in from one end of the cooling roller and flows out from the other end of the cooling roller, and the surface of the roller cools the film; the other is that a water spraying mechanism is arranged outside the roller to cool the roller. The water spraying mechanism has an inner pipe and a housing. The housing is encapsulated outside the inner pipe. Water inlets are arranged at both ends of the inner pipe, and a water outlet slit is arranged on the housing. When water enters the inner pipe, since water outlet holes are uniformly arranged on the inner pipe, the water flowing out of the holes fills the entire inside of the housing and then sprays out through the water outlet slit, thereby forming a complete water curtain to spray and cool the roller.

[0004] However, the existing water spraying mechanism has the following defects:

[0005] 1. The gap of the water outlet is fixed and non-adjustable, so that the spraying distance and flow rate cannot be adjusted, and it is impossible to adjust according to the production parameters during equipment production, resulting in poor cooling effect on the rubber roller surface.

[0006] 2. It is easy to understand that the purpose of setting the inner pipe is to expect uniform water spraying from the slits of the housing. However, since the water in the housing is in a flowing state, its pressure distribution is uneven, resulting in inconsistent distance and flow rate of the entire water curtain, and poor cooling effect on the rubber roller surface.

[0007] Therefore, it is urgent to redesign a rubber roller water spraying mechanism to solve the problems that the spraying distance and flow rate cannot be adjusted and the water spraying is uneven. Content of the Utility Model

[0008] The purpose of the embodiment of the utility model is to overcome the structural defects of the prior art and propose a rubber roller water spraying mechanism, which adds a water outlet gap adjustment component, making the water outlet gap adjustable instead of non-adjustable as before, so that the spraying distance and the uniformity of the water spraying curtain can be adjusted, greatly improving the cooling effect and uniformity of the roller surface. Moreover, the distance between the water outlet holes on the inner pipe is changed from the original consistent distance to a smaller distance in the middle and larger distances at both ends, making the flow rate and distance of the water spraying curtain more consistent.

[0009] To achieve the above-mentioned utility model purpose, a rubber roller water spraying mechanism proposed in the embodiments of the present utility model is realized through the following technical solutions:

[0010] A rubber roller water spraying mechanism includes an inner tube provided with a water inlet and a housing encapsulated outside the inner tube. The inner tube is provided with water outlet holes, and the housing is provided with water spraying ports. It is characterized in that: the housing includes a trough-shaped body and a cover covering the open end of the body. The cover has a flat water spraying edge, and other edges of the cover except this water spraying edge are hermetically connected outside the open end of the body, so that the water spraying edge tends to fit the end face of a long side plate outside the open end of the body; an adjusting device for connecting the body and the cover and capable of adjusting the tilting degree of the water spraying edge is further provided on the housing, so that a slit serving as a water outlet can be formed between the water spraying edge and the corresponding long side plate end face.

[0011] Both ends of the inner tube are provided with water inlets, and a plurality of water outlet holes are opened along its length direction; from the middle of the inner tube to both ends, the distance between the water outlets gradually increases.

[0012] The water outlet holes of the inner tube are arranged in the opposite direction of the water spraying edge.

[0013] A screw hole is provided on the outer side surface of the cover. A bracket is directly or indirectly fixedly arranged on the body. A through hole corresponding to the screw hole is formed on the bracket, and bolts pass through the through holes one by one and are bolted to the screw holes.

[0014] A plurality of screw holes are uniformly arranged along the length direction on the outer side surface of the cover. The number and positions of the through holes and screw holes on the bracket correspond.

[0015] A plurality of "U"-shaped screw hole frames are arranged along the length direction on the outer side surface of the cover. The screw holes are arranged on the ridge part of the screw hole frame, and the outwardly flattened part of its lower part is fixedly installed on the outer side surface of the cover.

[0016] There are a plurality of the brackets, and the number corresponds to the screw holes; one end of the bracket provided with the through hole is suspended on the outer surface of the cover close to the water spraying edge position, and one end of it is fixed on the other long side plate of the body.

[0017] Compared with the prior art, the beneficial effects of the present utility model are: the present utility model proposes a rubber roller water spraying mechanism, which adds a water outlet gap adjusting component, making the water outlet gap change from the original non-adjustable to adjustable, so that the spraying distance and the uniformity of the water spraying water curtain can be adjusted, greatly improving the cooling effect and uniformity of the roller surface. Moreover, the distance between the water outlet holes on the inner tube changes from the original consistent to smaller in the middle and larger at both ends, making the flow rate and distance of the water spraying water curtain more consistent. Description of the Drawings

[0018] Through the following description of its exemplary embodiments in conjunction with the accompanying drawings, the above features and advantages of the present utility model will become clearer and easier to understand.

[0019] Figure 1 It is a three-dimensional schematic diagram of the rubber roller water spraying mechanism according to an embodiment of the present utility model;

[0020] Figure 2 It is a sectional view of the rubber roller water spraying mechanism according to an embodiment of the present utility model;

[0021] Figure 3 is Figure 1 a partially enlarged schematic diagram;

[0022] Figure 4 It is a schematic diagram of the inner tube structure according to an embodiment of the present utility model. Specific Embodiments

[0023] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Terms such as "front", "rear", "left", "right", "inner", "outer", etc. cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments in their relative relationships shall also be regarded as the scope of implementation of the present utility model without substantial changes in technical content.

[0025] In the description of the following embodiments, unless otherwise clearly specified and limited, terms such as "connection" and other terms should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] See Figures 1-4 As shown, an embodiment of the present utility model provides a rubber roller water spraying mechanism, which includes an inner tube 1 and a housing.

[0027] The housing is encapsulated outside the inner tube 1 and includes a body 2 and a cover 3. The body 2 is in a U-shaped groove shape and has a first side plate 21, a second side plate 22, a bottom plate 23, and two end plates 24.

[0028] The cover has a flat water spraying edge, and other edges of the cover except this water spraying edge are hermetically connected to the outside of the open end of the body, so that the water spraying edge tends to fit the end face of a long side plate outside the open end of the body. In a specific embodiment, the cover 3 is a rectangular stainless steel flat plate, covering the open end of the body 2. Its first long side is hermetically connected to the end face of the first side plate 21 of the body 2, and its two short sides are hermetically connected to the two end face plates 24 of the body 2, and the second long side (i.e., the water spraying edge) of the cover 3 tends to fit the end face of the second side plate 22 of the body 2.

[0029] More specifically, the housing is a double-layer hollow sheet metal part made of stainless steel. The first side plate 21, the second side plate 22 and the bottom plate 23 are all double-layer hollow plates equivalent to two inner and outer layers. The end faces of the first side plate 21 and the second side plate 22 are flush and have a certain thickness. The first long side / two short sides of the cover 3 are fixedly installed on the end faces of the first side plate 21 / end face plate 24 by bolts and sealed by caulking. The second long side of the cover 3 fits the end face of the second side plate 22 without external force. Of course, the cover 3 can also be hermetically connected to other positions of the body in other ways, as long as the two can be sealed without water leakage and the second long side fits the end face of the second side plate 22, such as welding, bonding or being an integral structure with the first side plate 21, etc.

[0030] A plurality of screw holes are formed along the length direction on the outer side surface of the cover 3. In a preferred embodiment, a plurality of "channel-shaped" screw hole frames 4 are provided along the length direction on the outer side surface of the cover 3. A nut 41 is provided on the ridge of the screw hole frame 4 to form the screw hole. The outwardly flattened part at the lower part of the screw hole frame 4 is fixedly installed on the outer side surface of the cover 3. Obviously, those skilled in the art can easily think that there are many ways to construct screw holes on the outer side surface of the cover 3 without damaging the integrity of the cover, such as directly fixing nuts with a certain thickness on the cover 3, or arranging a plurality of screw holes on a long strip-shaped frame body, etc. These ways of setting screw holes are also within the protection scope of the present invention.

[0031] A bracket 5 is directly or indirectly fixedly arranged on the main body 2. Through holes corresponding to the screw holes one by one are formed on the bracket 5, and bolts 6 pass through the through holes one by one and are bolted to the screw holes. In a preferred embodiment, there are multiple brackets 5, and the quantity corresponds to the screw holes. The bracket 5 is generally in a Z shape and is composed of a bottom plate 51 and a top plate 52 that are parallel to each other, and a vertical plate 53 vertically connecting the bottom plate 51 and the top plate 52. The bottom plate 51 is indirectly fixed on the end face of the first side plate 21 of the main body 2 through the bolts for fixing the cover 3. The top plate 52 is provided with through holes and is suspended at a position close to the second side plate 22 of the cover 3. When the bolt 6 is rotated, the head of the bolt 6 abuts against the outer periphery of the through hole, so that the second long side of the cover 3 is lifted, and a slit serving as a water outlet can be formed between the second long side and the end face of the second side plate 22 of the main body 2, thereby realizing the adjustment of the width of the water spraying slit. In order to ensure that the bracket 5 has sufficient strength and will not deform, a reinforcing rib 54 is also arranged at the joint of the vertical plate 53 and the top plate 52.

[0032] Obviously, it is very easy for those skilled in the art to think that there are also many ways to set through holes that are relatively fixed to the main body 2. For example, a long L-shaped frame body can be directly fixed on the side plate of the main body 2, and multiple through holes are arranged on the frame body and so on. These ways of setting through holes are also within the protection scope of the present utility model.

[0033] Both ends of the inner tube 1 pass through the end face plate 24 of the outer shell and extend outside the outer shell, and a water inlet 11 is arranged. The inner tube 1 is hermetically connected to the end face plate 24.

[0034] A number of water outlet holes 12 are provided on the inner tube 1, and the water outlet holes 12 are arranged in a direction opposite to the end face of the second side plate 22 of the main body 2. In a preferred embodiment, the water outlet holes 12 are arranged along the length direction of the inner tube 1, and the distance between the water outlet holes 12 gradually increases from the middle of the inner tube 1 to both ends. In this way, the flow rate and distance of the water spraying water curtain are made more consistent.

[0035] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model provides a rubber roller water spraying mechanism, which adds a water outlet gap adjusting component, so that the water outlet gap changes from being non-adjustable to being adjustable, thereby the spraying distance and the uniformity of the water spraying water curtain can be adjusted, and the cooling effect and uniformity of the roller surface are greatly improved. Moreover, the distance between the water outlet holes on the inner tube changes from being the same originally to being small in the middle and large at both ends, making the flow rate and distance of the water spraying water curtain more consistent.

[0036] The above has described in detail the inventive concept and implementation manner of the present utility model through embodiments. However, those of ordinary skill in the art to which the present utility model pertains can understand that the above embodiments of the present utility model are only one of the preferred embodiments of the present utility model. Due to space limitations, all implementation manners cannot be listed one by one here. Any implementation that can embody the technical solution of the claims of the present utility model falls within the protection scope of the present utility model.

[0037] It should be noted that the above content is a further detailed description of the present utility model in combination with specific implementation manners. It cannot be determined that the specific implementation manners of the present utility model are limited thereto. Under the guidance of the above embodiments, those skilled in the art can make various improvements and deformations on the basis of the above embodiments, and these improvements or deformations fall within the protection scope of the present utility model.

Claims

1. A rubber roller water spraying mechanism, comprising an inner tube with a water inlet and an outer shell encapsulated outside the inner tube, wherein the inner tube is provided with a water outlet, and the outer shell is provided with a water spraying port; characterized in that: The shell includes a groove-shaped body and a cover covering the opening of the body, the cover has a straight water spray edge, and the edges of the cover except the water spray edge are sealed and connected to the outside of the opening of the body, so that the water spray edge tends to fit the end face of a long side plate outside the opening of the body; the shell is also provided with an adjustment device that connects the body and the cover and can adjust the degree of tilting of the water spray edge, so that a slit can be formed between the water spray edge and the corresponding end face of the long side plate as a water outlet.

2. A rubber roller water spraying mechanism according to claim 1, characterized in that: Water inlets are arranged at both ends of the inner tube, and a plurality of water outlet holes are arranged on the inner tube along its length direction; the spacing between the water outlet holes gradually increases from the middle of the inner tube to both ends.

3. A rubber roller water spraying mechanism according to claim 2, characterized in that: The inner tube water outlet is arranged in the opposite direction of the water spraying edge.

4. A rubber roller water spraying mechanism according to claim 1, characterized in that: The outer side surface of the cover is provided with screw holes, and a bracket is directly or indirectly fixedly provided on the body. Through holes corresponding to the screw holes are formed on the bracket, and bolts pass through the through holes one by one and are bolted to the screw holes.

5. A rubber roller water spraying mechanism according to claim 4, characterized in that: A plurality of screw holes are evenly arranged on the outer side surface of the cover along its length direction, and the number and positions of the through holes and screw holes on the bracket correspond.

6. A rubber roller water spraying mechanism according to claim 5, characterized in that: A plurality of "J"-shaped screw hole racks are arranged along the length direction on the outer side surface of the cover, the screw holes are arranged on the ridge of the screw hole racks, and the lower flattened part thereof is fixedly installed on the outer side surface of the cover.

7. A rubber roller water spraying mechanism according to claim 6, characterized in that: There are multiple brackets, and the number corresponds to the screw holes; one end of the bracket with a through hole is suspended on the outer surface of the cover near the water spray edge, and the other end is fixed to the other long side plate of the body.

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