Automatic blanking auxiliary device of open mill

Abstract

The utility model discloses an automatic blanking auxiliary device of an open mill, which belongs to the field of open mill equipment and comprises an open mill body, a conveying belt component and a blowing component. The conveying belt assembly comprises a material receiving conveying belt, a discharging conveying belt and a return conveying belt. The blowing assembly is arranged between the output end of the receiving conveying belt and the receiving end of the discharging conveying belt. Materials are conveyed from the receiving conveying belt to the discharging conveying belt and the return conveying belt. And if the materials need to be conveyed to the rollers again for reprocessing, the blowing assembly is started to output high-pressure airflow, and when the materials are conveyed to the output end of the material receiving conveying belt, the airflow blows up the materials and guides the materials to the material receiving end of the return conveying belt, and the materials are conveyed back to the position between the two rollers through the return conveying belt. And if the materials do not need to be reprocessed and are directly discharged, the blowing assembly reduces the output power of the airflow, only plays a role in suspending the materials, and the materials jump to the discharging conveying belt under the inertia effect of the materials and are conveyed and discharged by the discharging conveying belt.

Description

Technical Field

[0001] The utility model belongs to the field of open mill equipment, and specifically relates to an automatic feeding auxiliary device for an open mill. Background Technique

[0002] An open mill is a mechanical device used for rubber and plastic processing, mainly for the premixing, plasticizing, and preprocessing before vulcanization of rubber. An open mill usually consists of two horizontally arranged and relatively rotating rollers. By adjusting the gap and rotation speed of the rollers, strong shear force and friction force are generated to repeatedly shear, stretch, and compress rubber or plastic materials, so as to make them mix evenly. The material is extruded and stretched at the gap between the rollers, generating plastic deformation and fluidity, so as to achieve the purpose of mixing and plasticizing.

[0003] The way to add materials to an open mill is to accurately put the required base materials and additives between the gaps of the two rollers for extrusion. The formed material still needs to be repeatedly reprocessed between the two rollers to meet the requirements of uniform mixing of the base material, increased plasticity and fluidity, gas discharge, and temperature control. For the step of putting in materials, most current open mills still require manual feeding of materials and picking up the materials and putting them back into the rollers. The working intensity of the operators is high, and long-term operation is likely to cause fatigue and thus there are safety risks.

[0004] Regarding an improvement of the open mill, some open mills are provided with a bottom conveyor belt below the rollers to convey materials, and a turning conveyor belt is arranged in the middle section of the travel of the bottom conveyor belt. By rotating the turning conveyor belt, the path direction of the turning conveyor belt can be changed to realize the backflow and discharging of materials, and thus realize the automatic feeding and processing of materials. However, a complex structure is required between the bottom conveyor belt and the turning conveyor belt to realize the transition of materials. Moreover, as the turning conveyor belt rotates, the motor used to drive the turning conveyor belt to convey also needs to rotate synchronously. The additional mechanisms thus added not only occupy a large amount of space, but also increase the loss of the motor, significantly increasing the use cost. Content of the Utility Model

[0005] The purpose of the utility model is to provide an automatic feeding auxiliary device for an open mill to solve the problems raised in the above-mentioned prior art.

[0006] Provide an automatic feeding auxiliary device for an open mill, including:

[0007] An open mill body, which includes two relatively arranged rollers;

[0008] The conveyor belt assembly includes a receiving conveyor belt, a discharging conveyor belt and a return conveyor belt, wherein the receiving end of the receiving conveyor belt is arranged below two rollers, the discharging conveyor belt and the output end of the receiving conveyor belt are arranged opposite to each other at intervals, the receiving end of the return conveyor belt is located at the top of the output end of the receiving conveyor belt and is arranged opposite to each other at intervals, and the output end of the return conveyor belt extends to the opposite parts of the tops of the two rollers;

[0009] The blowing assembly is arranged between the output end of the material receiving conveyor belt and the material receiving end of the material discharging conveyor belt.

[0010] Furthermore, the spray assembly includes a fan and a gas cylinder, the fan is connected to the gas cylinder, and the output port of the gas cylinder is located between the receiving conveyor belt and the discharging conveyor belt. The fan extracts external air to provide airflow to the gas cylinder, and then the gas cylinder delivers the rising airflow between the receiving conveyor belt and the discharging conveyor belt to control the posture of the material delivered to the output end of the receiving conveyor belt.

[0011] Furthermore, the top of the output end of the material receiving conveyor belt extends outward relative to the bottom of the output end to form a cantilever belt, and the output end of the side plate of the gas cylinder close to the material receiving conveyor belt is located at the bottom of the cantilever belt. When the cantilever belt conveys materials downward, the airflow forms a cutting layer between the cantilever belt and the materials, which is convenient for separating the materials from the conveyor belt, so that the bottom layer of the materials is subjected to the action of the rising airflow to produce a suspended rising effect.

[0012] Furthermore, the side plate of the gas cylinder close to the discharge conveyor belt is an arc plate, which is used to guide the airflow to diffuse on the side of the discharge conveyor belt to prevent the material from falling into the airflow outlet too early.

[0013] Furthermore, the side plate of the gas cylinder close to the material receiving conveyor belt extends a guide plate along the arc surface of the cantilever belt. The guide plate can further optimize the shear surface of the airflow, fully ensure the separation between the material and the material receiving conveyor belt, and prevent the material from adhering to the material receiving conveyor belt and being conveyed to the bottom return section of the material receiving conveyor belt.

[0014] Furthermore, a partition is arranged on one side of the outlet of the gas cylinder close to the guide plate and spaced from the guide plate. The partition can separate the airflow into a shearing functional area and a bearing functional area to prevent the airflow from turbulence.

[0015] Furthermore, a mesh plate with through holes is arranged in the outlet of the gas cylinder, and the mesh plate is used to receive materials that fall due to accidents, so as to prevent the materials from falling into the gas cylinder.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] After the material is extruded by two rollers, it falls onto the receiving conveyor belt and is transported towards the discharging conveyor belt and the return conveyor belt. If the material needs to be re-transported to the rollers for reprocessing, the blowing component starts to output high-pressure air flow. When the material is transported to the output end of the receiving conveyor belt, the air flow blows up the material and guides the material to the receiving end of the return conveyor belt, and then the material is re-transported back between the two rollers through the return conveyor belt. If the material is directly discharged without reprocessing, the blowing component reduces the output power of the air flow, which only plays a role in suspending the material. Under the action of the inertia of the material, the material jumps to the discharging conveyor belt and is transported out by the discharging conveyor belt. The feeding auxiliary device provided by this application does not require complex equipment flipping operations, and each conveyor belt is always in a stable working state. Only by adjusting the output power of the air flow can the return and discharging of the material be realized, reducing the production cost and improving the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present drawings or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present drawings. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of an automatic feeding auxiliary device for a kneader;

[0020] Figure 2 It is Schematic Diagram A of the structure of the blowing component provided by the present utility model;

[0021] Figure 3 It is Schematic Diagram B of the structure of the blowing component provided by the present utility model;

[0022] Figure 4 For Figure 3 The enlarged view of Area A in

[0023] In the figure: 1. Kneader body; 11. Roller; 2. Conveyor belt assembly; 21. Receiving conveyor belt; 211. Cantilever belt; 22. Discharging conveyor belt; 23. Return conveyor belt; 3. Blowing component; 31. Fan; 32. Gas cylinder; 321. Guide plate; 322. Partition plate; 323. Mesh plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0025] Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application. For those of ordinary skill in the art, without creative efforts, the present application can also be applied to other similar scenarios based on these drawings. In addition, it can also be understood that although the efforts made in such a development process may be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present application, some design, manufacturing or production changes made on the basis of the technical content disclosed in the present application are only conventional technical means and should not be understood as the content disclosed in the present application being insufficient.

[0026] However, there will be cases where unnecessary detailed descriptions are omitted. For example, there are cases where detailed descriptions of well-known matters are omitted and repeated descriptions of actually identical structures are omitted. This is to avoid the following descriptions from becoming unnecessarily lengthy and to facilitate the understanding of those skilled in the art. In addition, the accompanying drawings and the following descriptions are provided for those skilled in the art to fully understand the present application and are not intended to limit the subject matter recited in the claims.

[0027] Please refer to Figures 1-3 As shown, in an embodiment of the present utility model, an automatic blanking auxiliary device for an open mill includes an open mill body 1, a conveyor belt assembly 2, and a blowing assembly 3. The open mill body 1 includes two oppositely arranged rollers 11. The conveyor belt assembly 2 includes a material receiving conveyor belt 21, a discharging conveyor belt 22, and a return conveyor belt 23. The material receiving end of the material receiving conveyor belt 21 is arranged below the two rollers 11. The discharging conveyor belt 22 is arranged opposite to the output end of the material receiving conveyor belt 21 at an interval. The material receiving end of the return conveyor belt 23 is arranged opposite to the output end of the material receiving conveyor belt 21 at an interval at the top. The output end of the return conveyor belt 23 extends to the relative positions at the top of the two rollers 11. The blowing assembly 3 is arranged between the output end of the material receiving conveyor belt 21 and the material receiving end of the discharging conveyor belt 22.

[0028] After being processed by the two rollers 11, the material falls onto the receiving conveyor belt 21 and is transported from the receiving end to the output end by the receiving conveyor belt 21. When the material passes above the output end of the receiving conveyor belt 21, if the material needs to be reprocessed, the blowing assembly 3 continuously sprays an ascending airflow to blow the sheet-like or film-like material to the return conveyor belt 23. After the return conveyor belt 23 carries the material, it transports the material back to the mixing mill body 1 and is reprocessed by the rollers 11. If the material does not need to be reprocessed, the blowing assembly 3 reduces the power of the ejected airflow, and the material is guided to the discharge conveyor belt 22 under the airflow and inertial transport and discharged by the discharge conveyor belt 22. The discharge process can also be manually controlled by manually adjusting the end of the material to the discharge conveyor belt 22.

[0029] Specifically, the spray assembly 3 includes a fan 31 and a gas cylinder 32. The fan 31 is connected to the gas cylinder 32, and the output port of the gas cylinder 32 is located between the receiving conveyor belt 21 and the discharging conveyor belt 22. The fan 31 draws external air into the gas cylinder 32, and sprays it out from the output port of the gas cylinder 32 under the compression of the gas cylinder 32. By adjusting the output power of the fan 31, the airflow intensity sprayed from the gas cylinder 32 can be controlled, thereby switching the material conveying mode.

[0030] The top of the output end of the material receiving conveyor belt 21 extends outward relative to the bottom of the output end to form a cantilever belt 211, and the output end of the side plate of the gas cylinder 32 close to the material receiving conveyor belt 21 is located at the bottom of the cantilever belt 211. When the material enters the cantilever belt 211, the end of the material will be separated from the surface of the cantilever belt 211 under the influence of gravity. At this time, the separated part will be blown upward under the action of the rising airflow until it is guided to the return conveyor belt 23, so as to prevent the material from always clinging to the surface of the conveyor belt and unable to detach. The side plate of the gas cylinder 32 is located below the cantilever belt 211, and the output airflow can flow along part of the surface of the cantilever belt 211, and produce a shearing effect between the material and the conveyor belt, ensuring that the material and the cantilever belt 211 are separated smoothly.

[0031] The side plate of the gas cylinder 32 near the discharge conveyor belt 22 is an arc-shaped plate. The arc-shaped side plate can guide part of the airflow toward the discharge conveyor belt 22, ensuring that the material will not fall quickly into the outlet of the gas cylinder 32 when crossing the main airflow area, so that the material can smoothly cross to the discharge conveyor belt 22. In fact, under the guidance of the arc-shaped plates on both sides of the gas cylinder 32 and the cantilever belt 211, the overall airflow has a tendency to flow toward the discharge conveyor belt 22, and the material can be automatically guided toward the receiving conveyor belt 21.

[0032] See also Figure 2 , Figure 3 and Figure 4As shown, the side plate of the gas cylinder 32 close to the material receiving conveyor belt 21 extends a guide plate 321 along the arc surface of the cantilever belt 211. The guide plate 321 can guide the airflow at the bottom of the cantilever belt 211 toward the beveled surface of the cantilever belt 211, reduce the cutting angle between the airflow entering the material and the cantilever belt 211, and further increase the separation effect between the material and the cantilever belt 211.

[0033] A partition 322 is arranged on one side of the outlet of the gas cylinder 32 near the guide plate 321 and spaced from the guide plate 321. The partition 322 can stratify the rising flow, dividing the airflow into a shearing functional area and a bearing functional area. The shearing functional area is used to separate the material from the cantilever belt 211, and the rising airflow in the bearing functional area is used to overcome the gravity of the material and guide the material to the discharge conveyor belt 22 or the return conveyor belt 23, so as to prevent the airflows in the two functional areas from moving against each other and causing turbulence, thereby affecting the effects of each functional area.

[0034] A mesh plate 323 with through holes is provided in the outlet of the gas cylinder 32 , and the mesh plate 323 is used to receive materials that fall due to accidents, so as to prevent the materials from falling into the gas cylinder 32 .

[0035] It should be noted that the present application is not limited to the above-mentioned embodiments. The above-mentioned embodiments are only examples, and the embodiments having the same structure as the technical idea and exerting the same effect within the scope of the technical solution of the present application are all included in the technical scope of the present application. In addition, without departing from the scope of the main purpose of the present application, various modifications that can be thought of by those skilled in the art to the embodiments and other methods of combining some of the constituent elements in the embodiments are also included in the scope of the present application.

Claims

1. An automatic unloading auxiliary device for a mixing mill, characterized in that: include: An open mixing mill body (1) comprising two rollers (11) arranged opposite to each other; A conveyor belt assembly (2), comprising a material receiving conveyor belt (21), a material discharging conveyor belt (22) and a return conveyor belt (23), wherein the material receiving end of the material receiving conveyor belt (21) is arranged below two rollers (11), the material discharging conveyor belt (22) and the output end of the material receiving conveyor belt (21) are arranged opposite to each other with a spacing, the material receiving end of the return conveyor belt (23) is located at the top of the output end of the material receiving conveyor belt (21) and is arranged opposite to each other with a spacing, and the output end of the return conveyor belt (23) extends to the opposite position of the top of the two rollers (11); A blowing assembly (3) is arranged between the output end of the material receiving conveyor belt (21) and the material receiving end of the material discharging conveyor belt (22).

2. The automatic unloading auxiliary device for a mixing mill according to claim 1, characterized in that: The spray assembly (3) comprises a fan (31) and a gas cylinder (32); the fan (31) is connected to the gas cylinder (32); and the output port of the gas cylinder (32) is located between the receiving conveyor belt (21) and the discharging conveyor belt (22).

3. The automatic unloading auxiliary device for a mixing mill according to claim 2, characterized in that: The top of the output end of the material receiving conveyor belt (21) extends outwardly relative to the bottom of the output end to form a cantilever belt (211), and the output end of the side plate of the gas cylinder (32) close to the side of the material receiving conveyor belt (21) is located at the bottom of the cantilever belt (211).

4. The automatic unloading auxiliary device for a mixing mill according to claim 2, characterized in that: The side plate of the gas cylinder (32) close to the discharge conveyor belt (22) is an arc-shaped plate.

5. The automatic unloading auxiliary device for a mixing mill according to claim 3, characterized in that: A guide plate (321) is extended from a side plate of the gas cylinder (32) close to the material receiving conveyor belt (21) along the arc surface of the cantilever belt (211).

6. The automatic unloading auxiliary device for a mixing mill according to claim 5, characterized in that: A partition plate (322) is arranged on one side of the outlet of the gas cylinder (32) close to the guide plate (321) and spaced apart from the guide plate (321).

7. An automatic unloading auxiliary device for a mixing mill according to any one of claims 2 to 6, characterized in that: A mesh plate (323) with through holes is arranged in the outlet of the gas cylinder (32).

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