Flame-retardant plastic master batch cooling and conveying device

Abstract

The utility model discloses a flame-retardant plastic master batch cooling and conveying device, which relates to the technical field of conveying mechanisms, and comprises a cooling water tank and conveying rollers, a plurality of groups of mounting clamping plates are arranged on the side wall of the cooling water tank at intervals along the long axis direction of the cooling water tank, and adjustable rotating rods are arranged on the mounting clamping plates. An adjusting frame is fixedly mounted on the rotating rod, a strip-shaped mounting groove is formed in the adjusting frame, a shaft sleeve is arranged in the strip-shaped mounting groove, first locking nuts for locking the shaft sleeve to the adjusting frame are arranged at the two ends of the shaft sleeve, a first bearing is arranged in the shaft sleeve, and the two ends of the conveying roller are connected into the first bearing. According to the utility model, the shaft sleeve is rotationally connected with the conveying roller through the bearing, so that the strip-shaped material is in rolling connection with the conveying roller in the traction process, the friction force between the conveying roller and the strip-shaped material is effectively reduced, and the risk of breakage of the strip-shaped material is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of conveying mechanisms, and particularly relates to a cooling and conveying device for flame-retardant plastic masterbatch. Background Art

[0002] Red phosphorus has high flame-retardant efficiency, low cost and no halogen, and can be widely used for the flame retardancy of various plastic products such as resins, unsaturated resins, hot melt adhesives, rubbers, and coatings. According to analysis, the phosphorus-based flame retardant mainly added in the flame-retardant plastic masterbatch is red phosphorus flame retardant.

[0003] In the processing process of red phosphorus flame retardant plastic masterbatch, common equipment includes a twin-screw extruder. Generally, the strip-shaped material extruded by the twin-screw extruder needs to go through a granulation process. During the process of conveying the strip-shaped material to the granulator, the strip-shaped material needs to pass through a cooling water tank for cooling, and then the granulation process is carried out.

[0004] The existing patent 202322403390.4, with the patent name of "a conveying mechanism of a red phosphorus flame retardant masterbatch granulator", discloses that by arranging two left and right concave clamping plate structures on both sides of the cooling water tank and cooperating with the rotating rod at the middle position, the working stability of the conveying roller can be ensured; at the same time, by arranging an adjusting frame structure and cooperating with a locking nut, the installation radius length of the conveying roller can be changed. With the rotation of the rotating rod, the adjustability is good, and the working position of the conveying roller can be flexibly changed within a large range, which is suitable for the traction of strip-shaped materials of different sizes.

[0005] However, the above-mentioned conveying mechanism mainly has the following disadvantages: Since the conveying roller is restricted in the adjusting frame by the locking nut and cannot rotate, when the strip-shaped material passes through the conveying roller after extrusion, the friction between the strip-shaped material and the conveying roller is sliding friction. When the strip-shaped material passes through multiple conveying rollers of the cooling water tank, there is a risk that the strip-shaped material breaks due to large friction force.

[0006] Secondly, one end of the adjusting frame is fixedly connected to the rotating rod, and the other end has no fixed support structure, so the working stability of the adjusting frame needs to be further improved.

[0007] Therefore, the existing technology has defects and needs to be improved. Utility Model Content

[0008] The main purpose of the present application is to provide a cooling and conveying device for flame-retardant plastic masterbatch, aiming to solve the problem that the strip-shaped material breaks due to large sliding friction when passing through multiple conveying rollers of the cooling water tank in the existing technology.

[0009] The technical solution adopted by the present application is as follows:

[0010] A flame-retardant plastic masterbatch cooling and conveying device includes a cooling water tank. A number of groups of mounting clamping plates are arranged at intervals along the long axis direction of the side wall of the cooling water tank. An adjustable rotating rod is arranged on the mounting clamping plate. An adjusting frame is fixedly installed on the rotating rod. The adjusting frame is provided with a strip-shaped mounting groove. A shaft sleeve is arranged in the strip-shaped mounting groove. Both ends of the shaft sleeve are provided with first locking nuts for locking the shaft sleeve to the adjusting frame. A first bearing is arranged in the shaft sleeve. Both ends of the conveying roller are connected to the inside of the first bearing.

[0011] Optionally, each group of the mounting clamping plates includes two oppositely arranged mounting blocks. A concave clamping cavity is arranged on the side of the mounting clamping plate facing the cooling water tank. The mounting clamping plate is clamped to the side of the cooling water tank through the concave clamping cavity.

[0012] Optionally, in each group of the mounting clamping plates, one of the mounting clamping plates is rotatably connected to one end of the rotating rod through a second bearing. The other end of the rotating rod passes through the other mounting clamping plate and is fixed to the mounting clamping plate through a second locking nut.

[0013] Optionally, a rotating handle is arranged at one end of the rotating rod where the second locking nut is located.

[0014] Optionally, a support rod assembly is arranged at one end of the adjusting frame away from the rotating rod, and the length of the support rod assembly is adjustable.

[0015] Optionally, the support rod assembly includes a threaded sleeve. Opposite internal threads are arranged at both ends of the threaded sleeve. The two ends of the threaded sleeve are respectively threadedly connected to support rods. The support rods pass through the corresponding side of the adjusting frame and fit / separate from the inner wall of the cooling water tank as the threaded sleeve rotates.

[0016] Optionally, the adjusting frame is provided with a limiting hole for the support rod to pass through. A number of limiting card slots are arranged circumferentially on the limiting hole. A limiting card strip for being clamped into the limiting card slots is arranged on the outer wall of the support rod.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] A flame-retardant plastic masterbatch cooling and conveying device proposed in the embodiment of this application, by arranging a shaft sleeve in the strip-shaped mounting groove of the adjusting frame, the shaft sleeve can move in the strip-shaped mounting groove to change the mounting radius of the conveying roller, and the shaft sleeve is fixed by using the first locking nut. At the same time, the conveying roller is rotatably connected to the inside of the shaft sleeve through the first bearing, so that the conveying roller can rotate freely. Therefore, when the strip-shaped material passes through the conveying roller, rolling friction is formed between the strip-shaped material and the conveying roller, which reduces the friction between the strip-shaped material and the conveying roller to a certain extent and helps to reduce the risk of the strip-shaped material breaking. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed by the present invention.

[0021] Figure 1 It is a schematic structural diagram of the flame-retardant plastic masterbatch cooling and conveying device provided by the embodiment of the present application from one perspective;

[0022] Figure 2 It is a schematic structural diagram of the conveying roller and its installation structure from one perspective;

[0023] Figure 3 For Figure 2 The enlarged view at A in

[0024] Explanation of the reference numerals in the drawings:

[0025] 1 - Cooling water tank, 2 - Installation clamping plate, 3 - Rotating rod, 4 - Adjusting frame, 5 - Strip-shaped installation groove, 6 - Bush, 7 - First locking nut, 8 - Conveying roller, 9 - Second bearing, 10 - Second locking nut, 11 - Bracing rod assembly, 111 - Bracing rod, 112 - Threaded sleeve, 12 - Limiting hole, 13 - Limiting strip. Specific embodiments

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In the present application, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0030] Referring to the attached Figure 1 As shown in the figure, the embodiment of the present application provides a flame-retardant plastic masterbatch cooling and conveying device, which includes a cooling water tank 1. One side of the cooling water tank 1 is located below the discharge port of the twin-screw extruder, and the other side of the cooling water tank 1 is located below the feed port of the pelletizer. The strip-shaped material is led out from the discharge port of the screw extruder, and the strip-shaped material is sequentially conveyed along the cooling water tank 1 through a plurality of conveying rollers 8 for cooling, and finally pulled to the guiding roller at the feed port of the pelletizer.

[0031] In this embodiment, referring to Figure 1 and Figure 2As shown, a number of groups of mounting clamping plates 2 are arranged along the long axis direction of the cooling water tank 1. Each group of mounting clamping plates 2 includes two mounting clamping plates 2, which are respectively arranged on two opposite sides of the cooling water tank 1. A concave clamping cavity is arranged on one side of each mounting clamping plate facing the cooling water tank 1, and the mounting clamping plate 2 is clamped on the side of the cooling water tank 1 through the concave clamping cavity. At the same time, in each group of mounting clamping plates 2, a second bearing 9 is installed on one of the mounting clamping plates 2. The inner ring of the second bearing 9 is sleeved with a rotating rod 3. The rotating rod 3 extends horizontally and passes through the other mounting clamping plate 2, and is fixed to the mounting clamping plate 2 through a second locking nut 10. A rotating handle is also arranged at the end of the rotating rod 3 at one end of the second locking nut 10, which is convenient for rotating the rotating rod 3. Thus, by loosening the second locking nut 10 outward, the rotating rod 3 can be rotated. By screwing the second locking nut 10 inward, the rotating rod 3 can be locked on the mounting clamping plate 2 and cannot rotate freely.

[0032] As Figure 2 shown, two adjusting frames 4 are symmetrically arranged on the rotating rod 3 with its midpoint as the center. The rotating rod 3 passes through one end of the adjusting frame 4, and the two are in interference fit, so that the adjusting frame 4 rotates synchronously with the rotating rod 3. A strip-shaped mounting groove 5 is arranged along the length direction of the adjusting frame 4. A shaft sleeve 6 slides in the strip-shaped mounting groove 5. The shaft sleeve 6 can slide along the strip-shaped mounting groove 5. First locking nuts 7 are arranged at both ends of the shaft sleeve 6. By screwing the first locking nuts 7 outward, the shaft sleeve 6 and the adjusting frame 4 can be loosened, so that the position of the shaft sleeve 6 in the strip-shaped mounting groove 5 can be adjusted. By screwing the first locking nuts inward, the shaft sleeve 6 can be fixed on the adjusting frame 4 and cannot slide freely. A first bearing is arranged inside the bearing. Both ends of the conveying roller 8 are connected to the inside of the first bearing. Thus, after the shaft sleeve 6 is locked to the adjusting frame 4, the conveying roller 8 can rotate through the first bearing. It can be imagined that by adjusting the conveying roller 8 to be in different positions in the adjusting frame 4, changing the installation radius length of the conveying roller 8, and cooperating with the rotation of the rotating rod 3, the adjustability is better, and the working position of the conveying roller 8 can be flexibly changed within a large range, which is suitable for towing strip-shaped materials of different sizes. At the same time, the conveying roller 8 is installed in the shaft sleeve 6 through the first bearing, and the conveying roller 8 can rotate freely. When the strip-shaped material passes through the conveying roller 8, the friction between the strip-shaped material and the conveying roller 8 is rolling friction. Compared with the sliding friction between the strip-shaped material and the conveying roller 8 in the prior art, the friction of the present application is smaller, and the risk of the strip-shaped material breaking during the conveying process can be reduced.

[0033] In an exemplary embodiment, in order to further increase the working stability of the adjusting frame 4, see Figure 2As shown in the figure, a length-adjustable strut assembly 11 is provided at one end of the adjustment frame 4 away from the rotating rod 3. The strut assembly 11 can extend and fit against the inner walls of the cooling water tanks 1 on both sides. Specifically, the strut assembly 11 includes a threaded sleeve 112. Opposite internal threads are provided at both ends of the threaded sleeve 112. Struts 111 are respectively threadedly connected to both ends of the threaded sleeve 112. The struts 111 pass through the adjustment frame 4 on the corresponding side. At the same time, the adjustment frame 4 is provided with a limit hole 12 for the struts 111 to pass through. A number of limit slots are circumferentially provided in the limit hole 12. A limit strip 13 that snaps into the limit slots is provided along the length direction on the outer wall of the strut 111. It can be imagined that since the struts 111 at both ends are threadedly connected to the threaded sleeve 112, the internal thread directions at both ends of the threaded sleeve 112 are opposite, and the struts 111 are restricted by the limit slots and the limit strips 13 and cannot rotate. Thus, when the threaded sleeve 112 is rotated clockwise, the struts 111 on both sides can extend outwards and fit against the inner walls of the cooling water tanks 1, so as to tightly support one end of the adjustment frame 4 away from the rotating rod 3 between the side walls of the cold water tank, increasing the working stability of the adjustment frame 4 and the conveying rollers 8. When the threaded sleeve 112 is rotated counterclockwise, the struts 111 on both sides can contract inwards and separate from the inner walls of the cooling water tanks 1.

[0034] In summary, for a flame-retardant plastic masterbatch cooling and conveying device provided by an embodiment of the present application, by arranging a position-movable bushing 6 in the adjustment frame 4, the conveying roller 8 can be placed at different positions in the adjustment frame 4, changing the installation radius length of the conveying roller 8. Cooperating with the rotation of the rotating rod 3, the adjustability is good, and the working position of the conveying roller 8 can be flexibly changed within a large range, suitable for towing strip-shaped materials of different sizes. And the bushing 6 is rotationally connected to the conveying roller 8 through a bearing, so that the strip-shaped material forms a rolling connection with the conveying roller 8 during the towing process, effectively reducing the friction between the conveying roller 8 and the strip-shaped material, reducing the risk of breakage of the strip-shaped material. At the same time, a strut assembly 11 is provided at one end of the adjustment frame 4 away from the rotating rod 3, and the adjustment frame 4 is tightly supported in the cooling water tank 1 by using the strut assembly 11, thereby increasing the working stability of the adjustment frame 4 and the conveying roller 8.

[0035] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flame retardant plastic masterbatch cooling and conveying device, comprising a cooling water tank and a conveying roller, characterized in that: The side wall of the cooling water trough is provided with a plurality of groups of mounting clamps at intervals along the long axis direction of the cooling water trough, the mounting clamps are provided with adjustable rotating rods, an adjusting frame is fixedly installed on the rotating rod, the adjusting frame is provided with a strip mounting groove, a shaft sleeve is provided in the strip mounting groove, first locking nuts for locking the shaft sleeve to the adjusting frame are provided at both ends of the shaft sleeve, a first bearing is provided in the shaft sleeve, and both ends of the conveying roller are connected to the first bearing.

2. The flame retardant plastic masterbatch cooling and conveying device according to claim 1, characterized in that: Each group of the mounting card plates comprises two mounting card blocks arranged opposite to each other, and a concave card cavity is arranged on the side of the mounting card plate facing the cooling water trough, and the mounting card plate is clamped on the side of the cooling water trough through the concave card cavity.

3. The flame retardant plastic masterbatch cooling and conveying device according to claim 2, characterized in that: In each group of the mounting clamps, one of the mounting clamps is rotatably connected to one end of the rotating rod via a second bearing, and the other end of the rotating rod passes through the mounting clamp on the other side and is fixed to the mounting clamp via a second locking nut.

4. The flame retardant plastic masterbatch cooling and conveying device according to claim 3, characterized in that: The rotating rod is provided with a rotating handle at one end thereof which is located at the second locking nut.

5. The flame retardant plastic masterbatch cooling and conveying device according to claim 1, characterized in that: A support rod assembly is arranged at one end of the adjustment frame away from the rotating rod, and the length of the support rod assembly is adjustable.

6. The flame retardant plastic masterbatch cooling and conveying device according to claim 5, characterized in that: The support rod assembly includes a threaded sleeve, and both ends of the threaded sleeve are provided with internal threads in opposite directions. The two ends of the threaded sleeve are respectively threadedly connected to the support rod. The support rod passes through the adjustment frame on the corresponding side and is attached to / separated from the inner wall of the cooling water tank as the threaded sleeve rotates.

7. The flame retardant plastic masterbatch cooling and conveying device according to claim 6, characterized in that: The regulating frame is provided with a limiting hole for the support rod to pass through, the limiting hole is circumferentially provided with a plurality of limiting slots, and the outer wall of the support rod is provided with a limiting clip strip that is inserted into the limiting slot.

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