A corrugated pipe production steel strip glue coating device with preliminary cooling function

Abstract

The utility model provides a corrugated tube production steel strip gluing device with a preliminary cooling function, comprising an extruder body and a cooling unit, wherein the cooling unit comprises a cooling channel connected to the discharge port of the extruder body and a cooling cavity surrounding the cooling channel; a partition baffle is provided in the cooling cavity, one end of the partition baffle is connected to the side wall of the cooling channel, and the other side extends upward at an angle, a liquid inlet is provided above the cooling cavity, a liquid outlet is provided on one side of the cooling cavity, and the liquid outlet is placed between the cooling channel and the upper edge of the partition baffle. The utility model adopts a cooling channel arranged at the discharge port of the extruder, and utilizes a cooling medium to preliminarily cool the molten PE material on the steel strip of the extruder moving out of the discharge port, so as to accelerate the solidification of the molten PE material.

Description

Technical Field

[0001] The utility model belongs to the technical field of corrugated pipe production, in particular to a corrugated pipe production steel strip glue coating device with a preliminary cooling function. Background Art

[0002] During the production process of the corrugated pipe, the steel strip will be pre-treated by high-frequency quenching, and then a layer of PE material will be coated on the pre-treated steel strip to ensure that the PE material can protect the internal steel strip after the corrugated pipe is produced and increase the service life of the corrugated pipe. During the coating of PE material, PE particles need to be placed in a hot melt extruder, and the hot melt extruder is used to melt the PE particles, and the molten PE is squeezed onto the surface of the steel strip by high pressure. However, after the coating is just completed, the molten PE cannot be firmly attached to the surface of the steel strip, and in order to keep the steel strips in the process, The thickness of the PE material on the surface is the same, and the steel belt needs to enter the extruder horizontally. After coating the PE material, the steel belt needs to move downward at a certain angle to enter the cooling water tank. Therefore, there is often a certain distance between the discharge port of the extruder and the cooling water tank, which is used to cool the PE material on the steel belt so that the subsequent rollers can support the steel belt and prevent damage to the hot-melt PE film on the lower surface of the steel belt. However, this increases the area occupied by the production line, and the dust present in the production process in the factory is more likely to come into contact with the steel belt, causing the PE film to be damaged and reducing product quality. Utility Model Content

[0003] In view of this, the utility model aims to provide a corrugated pipe production steel strip gluing device with a preliminary cooling function to preliminarily cool the molten PE material so as to shorten the distance between the extruder and the next roller.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A corrugated tube production steel strip glue coating device with a preliminary cooling function, comprising an extruder body and a cooling unit, wherein the cooling unit comprises a cooling channel connected to a discharge port of the extruder body and a cooling cavity surrounding the cooling channel;

[0006] A partition baffle is provided in the cooling cavity, one end of the partition baffle is connected to the side wall of the cooling channel, and the other side extends upward at an angle. A liquid inlet is provided above the cooling cavity, and a liquid outlet is provided on one side of the cooling cavity, and the liquid outlet is placed between the cooling channel and the upper edge of the partition baffle.

[0007] Furthermore, the cooling unit is provided with an observation port, and a flip cover is pressed on the observation port.

[0008] Furthermore, the liquid inlet is arranged on the flip cover.

[0009] Furthermore, the liquid inlet is located directly above the cooling channel.

[0010] Furthermore, at least one first supporting ear extends from the bottom of the extruder body toward the cooling unit, and each of the first supporting ears is screwed to a stud, and the top of the stud can abut against the bottom of the cooling chamber.

[0011] Furthermore, at least one second supporting ear is extended from one end of the extruder body toward the cooling unit, and each of the second supporting ears is screwed to a stud, and the top end of the stud can abut against the end of the cooling chamber.

[0012] Furthermore, the stud screwed to the first supporting ear and the stud screwed to the second supporting ear are perpendicular to each other.

[0013] Furthermore, fixing ears are respectively fixed on the extruder body and the cooling unit, and the fixing ears of the extruder body and the cooling unit correspond one to one, and oblong holes are respectively opened on the two corresponding fixing ears, and the length directions of the two oblong holes are perpendicular to each other.

[0014] Furthermore, the cross-sectional shape of the cooling channel is the same as the cross-sectional shape of the discharge port of the extruder body.

[0015] Compared with the prior art, the corrugated pipe production steel strip gluing device with preliminary cooling function described in the utility model has the following advantages:

[0016] The utility model adopts a cooling channel arranged at the discharge port of the extruder, and utilizes a cooling medium to preliminarily cool the molten PE material on the steel belt of the extruder moving out of the discharge port, so as to accelerate the solidification of the molten PE material;

[0017] The partition baffle, the liquid inlet and the liquid outlet are matched so that the cooling medium can wrap the cooling channel, so as to fully utilize the cooling medium to cool the steel strip.

[0018] The cooling unit is pre-supported during installation by adjusting the bolts perpendicular to each other, and the position of the cooling unit is adjusted by bolts so that the cooling channel is opposite to the extruder outlet;

[0019] The position of the cooling unit is fixed by fixing ears. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the glue coating device;

[0022] Figure 2 It is a schematic diagram of the structure of the extruder body (some mechanisms such as the extruder screw feeding are omitted);

[0023] Figure 3 It is a cross-sectional view of the internal structure of the cooling unit.

[0024] Description of reference numerals:

[0025] 1-extruder body; 11-stud; 12-first supporting ear; 13-second supporting ear; 14-discharging port; 2-cooling unit; 21-cooling chamber; 22-cooling channel; 23-partition baffle; 24-liquid inlet; 25-liquid outlet; 26-flip cover; 27-fixing ear. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] The glue coating device for the corrugated pipe production steel strip with a preliminary cooling function described in the present utility model includes an extruder body 1 and a cooling unit 2. The extruder body 1 can be a single-screw extruder or a twin-screw extruder. The cooling unit 2 is fixedly arranged at the position of the discharge port 14 of the extruder body 1. Specifically, the cooling unit 2 includes a cooling cavity 21 for the flow of a cooling medium and a cooling channel 22 surrounded by the cooling cavity 21. The cooling channel 22 faces the discharge port 14 of the extruder body 1. The steel strip passes through the extruder body 1 and the cooling channel 22 in sequence. A cooling medium is filled in the cooling cavity 21, so that the PE material coated on the steel strip by the extruder can solidify faster. In order to improve the cooling effect, the cross-section of the cooling channel 22 has the same shape as the cross-section of the discharge port 14.

[0031] In a more preferred embodiment, a partition baffle 23 is arranged in the cooling cavity 21. One end of the partition baffle 23 is connected to the side wall of the cooling channel 22, and the other side extends obliquely upward, so that the cooling cavity 21 becomes a U-shaped flow channel. An inlet 24 is arranged above the cooling cavity 21, and an outlet 25 is arranged on one side of the cooling cavity 21, and the outlet 25 is located between the cooling channel 22 and the upper edge of the partition baffle. The cooling medium enters the cooling cavity 21 from the inlet 24 and flushes the upper side wall of the cooling flow channel. The cooling medium is blocked by the partition baffle 23 on one side of the cooling channel 22, and on the other side of the cooling channel 22, the cooling medium can flow to the lower part of the cooling channel 22. Since the height of the outlet 25 is higher than that of the cooling channel 22, the lower part of the cooling channel 22 can contact the cooling medium. When the liquid level of the cooling medium is higher than the outlet 25, the cooling medium flows out from the outlet 25. Those skilled in the art should know that a container can be arranged below the outlet 25 to receive the flowing-out cooling medium, and the cooling medium can be transported to the inlet 24 through a pump and a water pipe, so that the cooling medium can be recycled. An observation port is arranged on the cooling unit 2, and a flip cover 26 is pressed on the observation port. The flip cover 26 is hinged to the edge of the observation port. The inlet 24 is arranged on the flip cover 26, so as to facilitate the operator to observe the liquid level in the cooling cavity 21 and reduce the volume of the cooling unit 2 at the same time.

[0032] In order to facilitate the installation of the cooling unit 2 on the extruder body 1, at least one first supporting ear 12 extends from the bottom of the extruder body 1 toward the cooling unit 2. In the present embodiment, there are two supporting ears, and the two first supporting ears 12 are respectively screwed with a stud 11, and the top of the stud 11 can abut against the bottom of the cooling cavity 21, and the cooling cavity 21 can be placed on the top of the stud 11; a second supporting ear 13 extends from one end of the extruder body 1 toward the cooling unit 2, and the second supporting ears 13 are respectively screwed with a stud 11, and the stud 11 screwed with the first supporting ear 12 and the stud 11 screwed with the second supporting ear 13 are perpendicular to each other, and the top of the stud 11 can abut against the end of the cooling cavity 21. The position of the cooling cavity 21 is changed by adjusting the length of the bolt to pre-position the cooling cavity 21 so that the discharge port 14 of the extruder can be opposite to the cooling channel 22.

[0033] The extruder body 1 and the cooling unit 2 are respectively provided with fixing ears 27, and the fixing ears 27 of the extruder body 1 and the cooling unit 2 correspond to each other one by one. The two corresponding fixing ears 27 are respectively provided with oblong holes, and the length directions of the two oblong holes are perpendicular to each other. During the installation process, the cooling chamber 21 is fixed by bolts and nuts.

[0034] Those skilled in the art should know that rollers should be provided at both ends of the extruder outlet 14 to lift the steel belt so that the steel belt maintains a fixed movement angle (horizontal) to facilitate the steel belt to pass through the extruder outlet 14.

[0035] In order to clearly show the installation structure and positional relationship between the cooling unit 2 and the extruder, the content shown in the figure is the discharge nozzle structure of the extruder. Those skilled in the art should know that the screw feeding structure of the extruder should be connected to the discharge nozzle.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corrugated pipe production steel strip gluing device with preliminary cooling function, characterized in that: The extruder comprises an extruder body and a cooling unit, wherein the cooling unit comprises a cooling channel connected to a discharge port of the extruder body and a cooling cavity surrounding the cooling channel; A partition baffle is provided in the cooling cavity, one end of the partition baffle is connected to the side wall of the cooling channel, and the other side extends upward at an angle. A liquid inlet is provided above the cooling cavity, and a liquid outlet is provided on one side of the cooling cavity, and the liquid outlet is placed between the cooling channel and the upper edge of the partition baffle.

2. The device for gluing steel strips for producing corrugated pipes with a preliminary cooling function according to claim 1 is characterized in that: The cooling unit is provided with an observation port, and a flip cover is pressed on the observation port.

3. The device for gluing steel strips for producing corrugated pipes with a preliminary cooling function according to claim 2 is characterized in that: The liquid inlet is arranged on the flip cover.

4. The device for gluing steel strips for producing corrugated pipes with a preliminary cooling function according to claim 1 is characterized in that: The liquid inlet is located directly above the cooling channel.

5. The device for gluing steel strips for producing corrugated pipes with a preliminary cooling function according to claim 1 is characterized in that: At least one first supporting ear is extended from the bottom of the extruder body toward the cooling unit, and each of the first supporting ears is screwed to a stud, and the top of the stud can abut against the bottom of the cooling cavity.

6. The device for gluing steel strips for producing corrugated pipes with a preliminary cooling function according to claim 5, characterized in that: At least one second supporting ear is extended from one end of the extruder body toward the cooling unit, and each of the second supporting ears is screwed to a stud, and the top end of the stud can abut against the end of the cooling cavity.

7. The device for gluing steel strips for producing corrugated pipes with a preliminary cooling function according to claim 6, characterized in that: The stud screwed to the first supporting ear and the stud screwed to the second supporting ear are perpendicular to each other.

8. The device for gluing steel strips for producing corrugated pipes with a preliminary cooling function according to claim 1 is characterized in that: The extruder body and the cooling unit are respectively provided with fixing ears, and the fixing ears of the extruder body and the cooling unit correspond to each other. Long circular holes are respectively opened on the two corresponding fixing ears, and the length directions of the two long circular holes are perpendicular to each other.

9. The device for gluing steel strips for producing corrugated pipes with a preliminary cooling function according to claim 1, characterized in that: The cross-sectional shape of the cooling channel is the same as the cross-sectional shape of the discharge port of the extruder body.

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