CN216968331U

CN216968331U - Automatic rubber and plastic mixing device with double-layer open mill

Info

Publication number: CN216968331U
Application number: CN202220217316.6U
Authority: CN
Inventors: 彭文清
Original assignee: Quanzhou Hongtai Machinery Co ltd
Current assignee: Quanzhou Hongtai Machinery Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-07-15
Anticipated expiration: 2032-01-26

Abstract

A rubber-plastic automatic mixing device with a double-layer open mill belongs to the technical field of rubber-plastic machinery and comprises an internal mixer, a feeding frame, a lifter, an open mill, a conveyer belt, the double-layer open mill, a discharging tablet press and a control system, wherein the internal mixer, the feeding frame, the lifter, the open mill, the conveyer belt, the double-layer open mill and the discharging tablet press are sequentially arranged and installed on the same straight line with the internal mixer as back and front; the double-deck mill is for setting up the structure of one set of mill roller again on conventional mill and including the base, and a machine support, the roller, roll spacing regulator and temperature control system, the frame includes lower floor's frame and upper rack, connect on the base below the lower floor's frame, upper rack connects on the frame of lower floor, the roller includes lower floor's roller and upper roller, lower floor's roller comprises two of horizontal installation and both ends axle is installed between the both sides of lower floor's frame, upper roller comprises two of horizontal installation and both ends axle is installed between the upper rack both ends directly over lower roller.

Description

Automatic rubber and plastic mixing device with double-layer open mill

Technical Field

The utility model relates to an automatic rubber and plastic line production device, in particular to an automatic rubber and plastic mixing device with a double-layer open mill, belonging to the technical field of rubber and plastic machinery.

Background

In the technical field of rubber and plastic processing, a plurality of products need to be smelted and blended by an internal mixer and an open mill, products such as natural rubber, synthetic rubber, ethylene-vinyl acetate copolymer and the like are generally subjected to vulcanization molding by a vulcanizer and injection molding by a novel process, the raw materials are dispersed and mixed and melted by the internal mixer and the open mill, and then the products can enter an injection or flat vulcanizing machine for vulcanization molding after granulation or sheet discharge. After the raw material formula according to the specific technical requirements is mixed by an internal mixer, the raw materials which are originally colloid, particles and powder and the batch materials are fused and melted into a micelle. But the dispersion degree between various batch materials and rubber (plastic) in the raw materials is low, and only the common dispersion degree is achieved. In order to fully disperse various components in the micelle into sheet materials or granular materials which can enter a forming process, the sheet materials or the granular materials are subjected to thick-passing, thin-passing, triangular bag making, thick-thin kneading and refining by an open mill according to the industrial terminology, and then the sheet materials or the granular materials are prepared into rubber particles by a sheet discharging machine or a granulating machine. These procedures have traditionally been manually operated both on stand-alone machines and from machine to machine.

In the technical scheme of the rubber and plastic automatic mixing operation device, an insulation can is adopted for conveying between an automatic open mill and a sheet discharging machine. On one hand, the rubber and plastic materials still keep certain activity after leaving the automatic open mill, and certain change can also occur in the transmission process of the heat preservation box; on the other hand, because the temperature of each use environment is different, the heat preservation degree is not satisfactory in a cold environment, so that the rubber and plastic sheet has certain defects when entering and exiting the sheet.

Disclosure of Invention

In order to solve the technical problem of sizing material change in the heat preservation link of the automatic operation device, the utility model provides the rubber-plastic automatic mixing device with the double-layer open mill.

The technical scheme adopted by the utility model is as follows: a rubber and plastic automatic mixing device with a double-layer open mill is composed of an internal mixer, a feeding frame, a lifting machine, an automatic open mill, a heat-preservation conveying belt, a double-layer open mill, a discharging tablet press and a control system, wherein the internal mixer, the feeding frame, the lifting machine, the automatic open mill, the heat-preservation conveying belt, the double-layer open mill and the discharging tablet press are sequentially arranged and installed on the same straight line from back to front by taking the internal mixer as a back direction; the automatic open mill is provided with an automatic material guiding and turning manipulator and a material pressing machine, and a bidirectional conveyor belt is arranged below the roller; the internal mixer is of a turnover type automatic mixing and discharging structure; the feeding frame comprises a frame body and a feeding hopper car, wherein the upper surface of the frame body is of a slope-shaped structure with a high front part and a low rear part, the feeding hopper car is of a climbing structure, and a hopper car opening is arranged on the back surface of the frame body by taking the lower surface of a discharge opening of the internal mixer and the middle of the back surface of the elevator as a starting point and an end point respectively; the lifting machine comprises a base, a lifting frame and a lifting hopper, the lifting frame is of an f-shaped structure formed by bending the upper end forwards and consists of two symmetrical side edges, the bottom of the lifting frame is fixed on the base, the lifting hopper is of a lifting structure, and a hopper opening is arranged in the middle of the lifting frame by taking the lower surface of the front end of the feeding frame and the upper surface of the automatic open mill as a starting point and a finishing point respectively; the heat-preservation conveying belt is a belt conveyor and is connected with a heat-preservation cover, and the heat-preservation conveying belt is arranged between the lower surface of the bidirectional conveying belt in front of the automatic open mill and the upper surface of the double-layer open mill; the double-layer open mill is mainly used for mixing and sheet discharging and has a structure with an automatic roll spacing adjusting function; the discharging tablet press is a replaceable machine tool comprising a discharging piece and granulation, and the rubber material pieces output by the double-layer open mill are directly extended to the discharging tablet press; the control system is a program control system which takes a PLC (programmable logic controller) as a main control module and controls the device to automatically run.

The double-layer open mill is a structure that a rubber mixing roller is arranged on a conventional open mill again and comprises a base, a rack, a roller spacing regulator and a temperature control system, wherein the rack comprises a lower-layer rack and an upper-layer rack, the lower surface of the lower-layer rack is connected to the upper surface of the base, the upper-layer rack is connected to the upper surface of the lower-layer rack, the roller comprises a lower-layer roller and an upper-layer roller, the lower-layer roller consists of two horizontally-installed rollers, two end shafts of the lower-layer roller are installed between two sides of the lower-layer rack, the upper-layer roller consists of two horizontally-installed rollers, two end shafts of the upper-layer roller are installed between two ends of the upper-layer rack right above the lower-layer roller, the roller spacing regulator is a functional component for automatically regulating the distance between the two rollers of the lower-layer roller and the upper-layer roller, the roller spacing regulator is respectively installed at the positions of the lower-layer rack and the upper-layer rack corresponding to a front roller shaft and a rear roller shaft and is connected to the roller shaft, the temperature control system is a water cooling system and comprises a temperature sensor, The temperature sensors are respectively arranged in the rollers of the upper layer roller and the lower layer roller, the water inlet system respectively extends into the rollers, and the water drainage system is connected with a water outlet at one end of each roller.

The control system comprises a controller, a control panel and a monitoring system, wherein the system controller is a control center consisting of intelligent elements taking a PLC (programmable logic controller) as a main control module and is arranged in a control cabinet, the control panel is of a liquid crystal touch screen structure, control and operation parameters are input and displayed on the control panel, the monitoring system comprises process monitoring and temperature monitoring, the monitoring system is distributed at each monitoring point of the whole mixing device comprising the internal mixer, and the controller instructs the motor and the whole operation device to automatically operate according to a pre-designed program and monitoring information of the monitoring system.

The utility model has the beneficial effects that: the device is an improved version of an automatic operation device for rubber and plastic automatic mixing. The device is an improvement on an operation device on the basis of the application of the double-screw plasticizing extruder and on the basis of practical application of a heat-preservation transmission belt and problems of a double-cone screw plasticizing extruder; an upper layer roller is additionally arranged on an open mill at the tail end of the assembly line, so that the technical problem that the rubber material output by a heat preservation transmission belt needs to be mixed again to be discharged is solved, and the simplification of a whole material operation device is ensured as far as possible. Namely, on the basis of ensuring the product quality, the equipment investment and the occupied area are saved as much as possible.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic side view of the present invention:

FIG. 2 is a schematic diagram of the side structure of a double-layer open mill of the present invention.

In the figure, 1, an internal mixer, 2, a feeding frame, 3, a lifting machine, 4, an automatic open mill, 5, a heat preservation conveying belt, 6, a double-layer open mill, 7, a discharging tablet press, 8, a bidirectional conveying belt, 9, a frame body, 10, a feeding hopper car, 11, a discharge port of the internal mixer, 12, a lifting frame, 13, a lifting hopper, 14, a heat preservation cover, 15, a base, 16, a roller distance regulator, 17, a temperature control system, 18, a lower layer frame, 19, an upper layer frame, 20, a lower layer roller, 21 and an upper layer roller.

Detailed Description

In the embodiment of fig. 1 and 2, an automatic rubber and plastic mixing device with a double-layer open mill is composed of an internal mixer 1, a feeding frame 2, an elevator 3, an automatic open mill 4, a heat-insulating conveying belt 5, a double-layer open mill 6, a discharging tablet press 7 and a control system, wherein the internal mixer 1, the feeding frame 2, the elevator 3, the automatic open mill 4, the heat-insulating conveying belt 5, the double-layer open mill 6 and the discharging tablet press 7 are sequentially arranged and installed on the same straight line with the internal mixer 1 as the back part and the front part; the automatic open mill 4 is provided with an automatic material guiding and turning manipulator and a material pressing machine, and a bidirectional conveyor belt 8 is arranged below a roller; the internal mixer 1 is of a turnover type automatic mixing and discharging structure; the feeding frame 2 comprises a frame body 9 and a feeding hopper car 10, wherein the upper surface of the frame body 9 is of a slope-shaped structure with a high front part and a low back part, the feeding hopper car 10 is of a climbing-type structure, and hopper car openings are respectively arranged on the back surface of the frame body 9 by taking the lower surface of a discharge opening 11 of the internal mixer and the middle of the back surface of the elevator 3 as starting points and end points; the lifting machine 3 comprises a base, a lifting frame 12 and a lifting hopper 13, wherein the lifting frame 12 is of an f-shaped structure with the upper end bent forwards and consists of two symmetrical side edges, the bottom of the lifting frame 12 is fixed on the base, the lifting hopper 13 is of a lifting structure, and a hopper opening is arranged in the middle of the lifting frame 12 by taking the lower surface of the front end of the feeding frame 2 and the upper surface of the automatic open mill 4 as a starting point and a finishing point respectively; the heat-preservation conveying belt 5 is a belt conveyor and is connected with a heat-preservation cover 14, and the heat-preservation conveying belt 5 is arranged between the lower part of the bidirectional conveying belt 8 in front of the automatic open mill 4 and the upper part of the double-layer open mill 6; the double-layer open mill 6 is mainly used for mixing and sheet discharging and has a structure with an automatic roll spacing adjusting function; the discharging tablet press 7 is a replaceable machine tool comprising tablet discharging and granulation, and the rubber material tablet output by the double-layer open mill 6 is directly extended to the discharging tablet press 7; the control system is a program control system which takes a PLC (programmable logic controller) as a main control module and controls the device to automatically run.

The double-layer open mill 6 is a structure that a rubber mixing roller is arranged on a conventional open mill, and comprises a base 15, a frame, rollers, a roller distance regulator 16 and a temperature control system 17, wherein the frame comprises a lower-layer frame 18 and an upper-layer frame 19, the lower surface of the lower-layer frame 18 is connected on the base 15, the upper-layer frame 19 is connected on the lower-layer frame 18, the rollers comprise a lower-layer roller 20 and an upper-layer roller 21, the lower-layer roller 20 is composed of two horizontally arranged rollers, two end shafts of the lower-layer roller are arranged between two sides of the lower-layer frame 18, the upper-layer roller 21 is composed of two horizontally arranged rollers, two end shafts of the upper-layer frame 19 are arranged between two ends of the lower-layer roller 20, the roller distance regulator 16 is a functional component for automatically regulating the distance between the two rollers of the lower-layer roller 20 and the upper-layer roller 21, the roller distance regulator 16 is respectively arranged at the positions of the lower-layer frame 18 and the upper-layer frame 19 corresponding to a front roller shaft and a rear roller shaft and is connected with the roller shaft, the temperature control system 17 is a water cooling system and comprises a temperature sensor, a water inlet system and a water drainage system, wherein the temperature sensor is respectively arranged in each roller of the upper roller 21 and the lower roller 20, the water inlet system respectively extends into each roller, and the water drainage system is connected with a water outlet at one end of each roller.

The control system comprises a controller, a control panel and a monitoring system, wherein the system controller is a control center consisting of intelligent elements taking a PLC (programmable logic controller) as a main control module and is arranged in a control cabinet, the control panel is of a liquid crystal touch screen structure, control and operation parameters are input and displayed on the control panel, the monitoring system comprises process monitoring and temperature monitoring, the monitoring system is distributed at each monitoring point of the whole mixing device comprising the internal mixer 1, and the controller instructs the motor and the whole operation device to automatically operate according to a pre-designed program and monitoring information of the monitoring system.

Example 1: the common rubber and plastic raw materials including natural rubber, synthetic rubber, EVA and the like and the rubber and plastic auxiliary agents are manually put into a mixing bin of the internal mixer 1 according to the formula amount, the mixing device is started through a control panel, after the rubber and plastic raw materials are automatically mixed into rubber masses, the mixture of the internal mixer 1 is automatically turned forwards and the rubber masses are transmitted to a hopper car 10 of a feeding machine 2, a controller instructs the hopper car 10 to ascend and incline the rubber masses to a lifting hopper 13 positioned on the back of a lifting machine 3 to be ready, and the hopper car 10 of the feeding machine 2 automatically falls back to be ready.

Example 2: according to the technical parameter requirements of products, the controller instructs the automatic open mill 4 to adjust the distance between the front roller and the rear roller, the rubber materials are rolled into sheets by the front roller and the rear roller, and the turning and the pouring are carried out below the rollers. The rubber material is transmitted backwards to the lifting hopper 13 by the bidirectional conveyor belt 8 according to the instruction of the controller for repeated mixing until the rubber material meets the technical requirement of discharging, and the rubber material is transmitted forwards to the heat preservation conveyor belt 5 by the bidirectional conveyor belt 8 instructed by the controller.

Example 3: after entering the heat-preservation conveying belt 5, the sizing material is conveyed between the two upper-layer rollers 21 of the double-layer open mill 6 by the heat-preservation conveying belt 5 in a heat preservation way. In the process of conveying by the heat preservation conveyer belt 5, the rubber materials are mixed again by the upper roller 21 of the double-layer open mill 6 due to uneven cooling degree of the rubber materials caused by different air temperatures due to region differences, other changes caused by the activity of the rubber materials and the like, so that the rubber materials are uniformly separated from the upper roller 21 and fall into the lower roller 20, and then the sheet discharging procedure is carried out. Moreover, the different distances between the lower roll 20 and the upper roll 21 can be designed according to the difference in the district, particularly in the winter temperature.

Claims

1. The utility model provides a dispose automatic mixing device of rubber and plastic of double-deck mill, characterized by: the device consists of an internal mixer, a feeding frame, a lifter, an automatic open mill, a heat preservation conveying belt, a double-layer open mill, a discharging tablet press and a control system, wherein the internal mixer, the feeding frame, the lifter, the automatic open mill, the heat preservation conveying belt, the double-layer open mill and the discharging tablet press are sequentially arranged and installed on the same straight line from back to front by taking the internal mixer as a back; the automatic open mill is provided with an automatic material guiding and turning manipulator and a material pressing machine, and a bidirectional conveyor belt is arranged below the roller; the internal mixer is of a turnover type automatic mixing and discharging structure; the feeding frame comprises a frame body and a feeding hopper car, wherein the upper surface of the frame body is of a slope-shaped structure with a high front part and a low rear part, the feeding hopper car is of a climbing structure, and a hopper car opening is arranged on the back surface of the frame body by taking the lower surface of a discharge opening of the internal mixer and the middle of the back surface of the elevator as a starting point and an end point respectively; the lifting machine comprises a base, a lifting frame and a lifting hopper, wherein the lifting frame is of an f-shaped structure with the upper end bent forwards and consists of two symmetrical side edges, the bottom of the lifting frame is fixed on the base, the lifting hopper is of a lifting structure, and a hopper opening is arranged in the middle of the lifting frame by taking the lower surface of the front end of the feeding frame and the upper surface of the automatic open mill as a starting point and an end point respectively; the heat-preservation conveying belt is a belt conveyor and is connected with a heat-preservation cover, and the heat-preservation conveying belt is arranged between the lower surface of the bidirectional conveying belt in front of the automatic open mill and the upper surface of the double-layer open mill; the double-layer open mill is mainly used for mixing and sheet discharging and has a structure with an automatic roll spacing adjusting function; the discharging tablet press is a replaceable machine tool comprising a discharging piece and a granulating piece, and the rubber material piece output by the double-layer open mill is directly extended to the discharging tablet press; the control system is a program control system which takes a PLC (programmable logic controller) as a main control module and controls the device to automatically run.

2. The automatic rubber and plastic mixing device with the double-layer open mill as claimed in claim 1, wherein: the double-layer open mill is characterized in that a rubber mixing roller set is arranged on a conventional open mill again and comprises a base, a rack, rollers, a roller spacing regulator and a temperature control system, wherein the rack comprises a lower layer rack and an upper layer rack, the lower surface of the lower layer rack is connected to the upper surface of the base, the upper layer rack is connected to the upper surface of the lower layer rack, the rollers comprise a lower layer roller and an upper layer roller, the lower layer roller consists of two horizontally arranged rollers, two end shafts of the lower layer roller are arranged between two sides of the lower layer rack, the upper layer roller consists of two horizontally arranged rollers, two end shafts of the upper layer roller are arranged between two ends of the upper layer rack right above the lower layer roller, the roller spacing regulator is a functional component for automatically regulating the spacing between the two rollers of the lower layer roller and the upper layer roller, the roller spacing regulator is respectively arranged at the positions of the lower layer rack and the upper layer rack corresponding to a front roller shaft and a rear roller shaft and is connected with the roller shaft, the roller spacing regulator is a water cooling system and comprises a temperature sensor, The temperature sensors are respectively arranged in the rollers of the upper layer roller and the lower layer roller, the water inlet system respectively extends into the rollers, and the water drainage system is connected with a water outlet at one end of each roller.

3. The automatic rubber and plastic mixing device with a double-layer open mill as claimed in claim 1, which is characterized in that: the control system comprises a controller, a control panel and a monitoring system, wherein the system controller is a control center consisting of intelligent elements taking a PLC (programmable logic controller) as a main control module and is arranged in a control cabinet, the control panel is of a liquid crystal touch screen structure, control and operation parameters are input and displayed on the control panel, the monitoring system comprises flow monitoring and temperature monitoring, the monitoring system is distributed at each monitoring point of the whole mixing device including an internal mixer, and the controller instructs the motor and the whole operation device to automatically operate according to a pre-designed program and monitoring information of the monitoring system.