CN219028073U

CN219028073U - Automatic weighing device for rubber mixing

Info

Publication number: CN219028073U
Application number: CN202223189663.1U
Authority: CN
Inventors: 胡国华; 姚能品; 曹进; 张书啸
Original assignee: Ningguo Secos Rubber Co ltd
Current assignee: Ningguo Secos Rubber Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-16
Anticipated expiration: 2032-11-30

Abstract

The utility model relates to the technical field of rubber mixing processing, and discloses an automatic weighing device for rubber mixing. According to the utility model, the rubber raw materials in the bin can be uniformly paved on the conveying belt through the preliminary quantitative discharging of the two groups of discharging rollers, then the secondary horizontal conveying discharging of the conveying belt is utilized to uniformly and stably discharge the tiled raw materials, so that the quantitative weighing and discharging device has the accurate and stable quantitative weighing and discharging performance on one hand, can accurately discharge and weigh the raw materials according to the condition of the raw material consumption, has better braking stability on the other hand, does not have redundant raw materials to be scattered, and improves the weighing and proportioning accuracy of the raw materials.

Description

Automatic weighing device for rubber mixing

Technical Field

The utility model relates to the technical field of rubber mixing processing, in particular to an automatic weighing device for rubber mixing.

Background

The mixing and mixing process of rubber is a process of uniformly dispersing various compounding agents into rubber by virtue of the action of mechanical force of a rubber mixing machine, is the most important production process of rubber processing, and needs to add various compounding agents such as filler, reinforcing agent, accelerator, vulcanizing agent, anti-aging agent, scorch retarder and the like into raw rubber or plastic rubber to ensure the consistency of the properties of the rubber, and in the process of mixing the rubber, various raw materials are required to be weighed and proportioned to ensure the mixing uniformity among the raw materials, and when the raw materials are in bearing proportioning, weighing and quantifying work is usually carried out on the raw materials by using a weighing device, for example, the prior patent technology shows that:

through searching, the Chinese patent network discloses an automatic weighing device (publication No. CN 215703117U) for rubber mixing, when the automatic weighing device is used, the main electric control valve is started firstly to enable raw materials to be discharged through the main discharging pipe, the main electric control valve is closed when the real-time weight of the weight sensor is about to reach a threshold value, and the auxiliary electric control valve is started to enable a small amount of raw materials to be discharged through the auxiliary discharging pipe, so that the automatic weighing accuracy is improved. However, there are some disadvantages to the automatic weighing apparatus adopted in the above-mentioned published patent and the existing market: the mode of unloading is carried out to the combination that this kind of utilization main discharging pipe and auxiliary discharging pipe, and its in the unloading in-process, raw materials are in free whereabouts state in the material pipe, and its unloading state is unstable, when stopping blanking procedure and opening, also have partial raw materials to go out under the action of gravity, lead to automatic weighing to have certain deviation, very easily appear the inaccurate condition of ratio.

Disclosure of Invention

The utility model aims to provide an automatic weighing device for rubber mixing, which solves the problems that in the prior art, the raw materials are in a free falling state in a material pipe and are unstable in a discharging state in the discharging process in a discharging mode by utilizing a combination of a main discharging pipe and an auxiliary discharging pipe, and when a blanking cut-off program is started, part of raw materials are discharged under the action of gravity, so that automatic weighing has certain deviation.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an automatic weighing device for rubber mixing comprises a weighing device, a supporting frame and a discharging hopper;

the number of the supporting frames is two, two groups of transmission shafts are symmetrically connected at positions, close to two ends, inside the two groups of supporting frames, of the two groups of transmission shafts, and transmission belts for secondary unloading are hooped on the outer sides of shaft rods of the two groups of transmission shafts;

two groups of arm force brackets assembled at the tops of the two groups of support frame brackets are symmetrically arranged at two ends of a hopper of the discharge hopper, the bottom discharge opening of the discharge hopper is right over the belt surface of the conveyor belt, two groups of mutually-involuted discharge rollers are symmetrically arranged in the hopper of the discharge hopper, and a plurality of groups of quantitative roller grooves for primary discharge are circumferentially arranged on the roller surfaces of the two groups of discharge rollers;

the number of the weighing devices is four, and the four groups of weighing devices are symmetrically arranged at the bottoms of the brackets of the two groups of supporting frames;

as still further aspects of the utility model: the upper material port end of the discharge hopper is provided with a material bin for containing rubber raw materials, and the material bin is of a conical structure.

As still further aspects of the utility model: the support back of support frame just to installing driving motor in one side of discharge hopper, driving motor's output runs through the face and the third belt pulley fixed connection of support frame, two sets of one set of output of discharge roller runs through discharge hopper and extends arm strength support and first belt pulley fixed connection, and one set of output of two sets of transmission shafts runs through support frame and second belt pulley fixed connection, through synchronous rotation of driving belt between first belt pulley, second belt pulley, the third belt pulley.

As still further aspects of the utility model: and two groups of involution gears which are symmetrically meshed with each other are arranged in the mode that one output ends of the two groups of discharging rollers penetrate through the discharging hopper and extend to the inside of the arm force bracket.

As still further aspects of the utility model: the two groups of the support frames are internally provided with baffle plates which are close to the surface of the conveying belt on one side opposite to the discharge opening of the discharge hopper, and the baffle plates are of inclined structures, and the inclination directions of the baffle plates are opposite to the transmission direction of the conveying belt.

As still further aspects of the utility model: the outer side of the shaft lever of the transmission shaft is symmetrically sleeved with a plurality of groups of transmission gears used for driving the transmission belt to rotate along the shaft lever direction, and the inner belt surface of the transmission belt is symmetrically provided with a plurality of groups of transmission toothed belts which are meshed with the transmission gears for transmission.

As still further aspects of the utility model: the transmission belt comprises a transmission belt, a transmission shaft, a supporting plate frame, a transverse frame, a longitudinal frame, a supporting plate frame and a supporting plate frame.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the rubber raw materials in the bin can be uniformly paved on the conveying belt through the preliminary quantitative discharging of the two groups of discharging rollers, then the secondary horizontal conveying discharging of the conveying belt is utilized to uniformly and stably discharge the tiled raw materials, so that the quantitative weighing and discharging device has the accurate and stable quantitative weighing and discharging performance on one hand, can accurately discharge and weigh the raw materials according to the raw material consumption condition, has better braking stability on the other hand, does not have redundant raw materials to be scattered when stopping discharging, and improves the weighing and proportioning accuracy of the raw materials.

Drawings

FIG. 1 is a schematic view showing a structure of an automatic weighing apparatus for rubber kneading;

FIG. 2 is a schematic development view of a discharge hopper in an automatic weighing apparatus for rubber kneading;

FIG. 3 is a schematic view showing the development of a conveyor belt in an automatic weighing apparatus for rubber kneading.

In the figure: 1. a weighing device; 2. a support frame; 3. arm strength support; 4. a first pulley; 5. a discharge hopper; 6. a storage bin; 7. a second pulley; 8. a drive belt; 9. a third pulley; 10. a driving motor; 11. a transmission belt; 12. a discharge roller; 13. a mating gear; 14. a quantitative roller groove; 15. a striker plate; 16. a driving toothed belt; 17. a transmission shaft; 18. a transmission gear; 19. and (5) supporting the plate frame.

Detailed Description

Referring to fig. 1 to 3, in the embodiment of the utility model, an automatic weighing device for rubber mixing includes a weighing device 1, a supporting frame 2 and a discharging hopper 5, wherein the number of the weighing device 1 is four, the four groups of weighing devices 1 are symmetrically arranged at the bottoms of the supporting frames 2 in pairs, a bin 6 for containing rubber raw materials is arranged at the upper material port end of the discharging hopper 5, the bin 6 is in a conical structure, when mixing rubber, the weighing device 1 performs weighing operation on the weighing device in an empty state in advance, then the rubber raw materials to be weighed are poured into the bin 6, after the pouring is finished, the weighing device 1 performs weighing operation again on the weighing device for loading the raw materials, the weight of the rubber raw materials is weighed by utilizing the difference value of two times before and after the pouring, the rubber raw materials are synchronously used according to the requirement, the rubber raw materials are discharged according to the proportioning weight, and the rubber raw materials are discharged into the mixing mill according to the appointed weight.

The support back of support frame 2 just opposite to the side of discharge hopper 5 installs driving motor 10, driving motor 10's output runs through the face and the third belt pulley 9 fixed connection of support frame 2, one of them output of two sets of discharge rollers 12 runs through discharge hopper 5 and extends arm strength support 3 and first belt pulley 4 fixed connection, and one of them output of two sets of transmission shafts 17 runs through support frame 2 and second belt pulley 7 fixed connection, through synchronous rotation of driving belt 8 between first belt pulley 4, second belt pulley 7, the third belt pulley 9, in the weighing process of unloading to the rubber raw materials, driving motor 10 works, drive third belt pulley 9 and rotate, through the transfer transmission of driving belt 8, drive first belt pulley 4, the synchronous rotation of second belt pulley 7, the corresponding unloading equipment operation of drive, carry out the work of unloading to the rubber raw materials.

Two groups of arm force brackets 3 assembled at the tops of the brackets of the two groups of support frames 2 are symmetrically arranged at two ends of the hopper of the discharge hopper 5, the bottom discharge opening of the discharge hopper 5 is right over the belt surface of the conveying belt 11, two groups of mutually-involuted discharge rollers 12 are symmetrically arranged in the hopper of the discharge hopper 5, a plurality of groups of quantitative roller grooves 14 for primary discharge are circumferentially arranged on the roller surfaces of the two groups of discharge rollers 12, two groups of involution gears 13 which are mutually symmetrically meshed are arranged at one end output ends of the two groups of discharge rollers 12 penetrating through the discharge hopper 5 and extend to the inside of the arm force brackets 3, during the process of discharging and weighing rubber raw materials, the first belt pulley 4 rotates, simultaneously, the two groups of discharge rollers 12 are driven to symmetrically rotate through involution transmission of the two groups of involution gears 13, and on the one hand, the rubber raw materials falling into the discharge hopper 5 are driven to dynamically move, so that the situation of blocking is avoided, on the other hand, the rubber raw materials after being accommodated are quantitatively discharged onto the conveying belt 11 by utilizing the quantitative roller grooves 14 on the roller surfaces, and the rubber raw materials are subjected to primary quantitative discharging and tiling and working.

The inside of the support of two sets of support frames 2 is provided with the striker plate 15 that is close to with the area face of the conveyer belt 11 just corresponding to the discharge opening side of the discharge hopper 5, and the striker plate 15 is the inclined plane structure, and its incline direction is opposite with the transmission direction of conveyer belt 11, in the process of unloading the rubber raw materials in the discharge hopper 5, through adding the striker plate 15 of establishing the inclined plane structure at its discharge opening, can block the raw materials that the whereabouts splashed, make the rubber raw materials landing, be in on the area face of conveyer belt 11 all the time.

The number of the supporting frames 2 is two, two groups of transmission shafts 17 are symmetrically connected to the positions, close to two ends, of the two groups of the supporting frames 2, transmission belts 11 for secondary discharging are hooped on the outer sides of shaft rods of the two groups of the transmission shafts 17, a plurality of groups of transmission gears 18 for driving the transmission belts 11 to rotate are symmetrically sleeved on the outer sides of the shaft rods of the transmission shafts 17 along the shaft rod direction of the transmission shafts, a plurality of groups of transmission toothed belts 16 meshed with the transmission gears 18 are symmetrically arranged on the inner belt surfaces of the transmission belts 11, in the process of discharging and weighing rubber raw materials, the second belt pulley 7 rotates and pushes one group of transmission shafts 17 to rotate, then the transmission belt 11 is pushed to rotate stably through meshed transmission of the transmission gears 18 on the outer sides of the shaft rods of the transmission shafts 17 and the transmission toothed belts 16, and secondary discharging work is carried out on the rubber raw materials paved on the belt surfaces of the transmission shafts 17, and the rubber raw materials are discharged into a mixing mill in a quantitative and horizontally paved manner.

The inside jack-up grillage 19 that is provided with of area face just right to conveyer belt 11 between the interval of two sets of transmission shafts 17, jack-up grillage 19 is horizontal, the crisscross structure of longitudinal frame, and the horizontal frame laminates with the upper portion area face of conveyer belt 11 mutually, and the longitudinal frame is fixed mutually with the face of two sets of support frames 2, in the process of unloading to the rubber raw materials that utilizes conveyer belt 11, jack-up laminating to the inner band face of conveyer belt 11 through jack-up grillage 19, can ensure the stationarity that conveyer belt 11 carried, avoid conveyer belt 11 under the action of rubber raw materials's gravity, the indent to appear and lead to raw materials to pile up, the uneven condition of tiling.

The working principle of the utility model is as follows: when rubber is mixed, the weighing device 1 weighs the weighing device in the emptying state in advance, then the rubber raw material to be weighed is poured into the bin 6, after the material pouring is finished, the weighing device 1 weighs the weighing device in which the raw material is loaded again, the difference value of the two times of weighing is utilized, the weight of the rubber raw material is weighed, the rubber raw material is synchronously used according to the requirement, the rubber raw material is discharged according to the proportioning weight, the rubber raw material is discharged into the mixer according to the appointed weight, the driving motor 10 is further operated in the process of discharging and weighing the rubber raw material, the third belt pulley 9 is driven to rotate, the first belt pulley 4 and the second belt pulley 7 are driven to synchronously rotate through the transfer transmission of the driving belt 8, the first belt pulley 4 and the second belt pulley 7 are driven to symmetrically rotate, the two sets of discharging rollers 12 are driven to symmetrically rotate through the involutory transmission of the two sets of involutory gears 13 while rotating, the rubber raw material is quantitatively discharged onto the conveying belt 11 by the quantitative involutory roller grooves 14 on the roller surfaces of the rubber raw material, the rubber raw material after the accommodating is quantitatively discharged onto the conveying belt 11, the rubber raw material is preliminarily quantitatively discharged, the rubber raw material is driven to the material is rotated, the material is meshed with the rubber raw material is conveyed to the conveyor belt 17 through the other belt 17, the two sets of the transfer belt 17 is simultaneously and the conveyor belt is driven to the material is stably rotates, and the rubber raw material is discharged into the conveyor belt is discharged into the bin through the conveyor belt 17 through the other belt conveyor belt 17, and the conveyor belt is simultaneously and the conveyor belt is meshed with the conveyor belt is simultaneously and automatically and simultaneously rotated to the conveyor belt is driven to the conveyor belt 17 to the conveyor to the raw material is simultaneously to the conveyor belt, and (5) stable stopping work.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. An automatic weighing device for rubber mixing is characterized by comprising a weighing device (1), a supporting frame (2) and a discharging hopper (5);

the number of the supporting frames (2) is two, two groups of transmission shafts (17) are symmetrically connected at positions, close to two ends, inside the two groups of supporting frames (2), and transmission belts (11) for secondary unloading are hooped on the outer sides of shaft rods of the two groups of transmission shafts (17);

two groups of arm force brackets (3) assembled at the tops of the brackets of the two groups of supporting frames (2) are symmetrically arranged at two ends of a hopper of the discharge hopper (5), the bottom discharge opening of the discharge hopper (5) is right opposite to the position right above the belt surface of the conveying belt (11), two groups of mutually-involuted discharge rollers (12) are symmetrically arranged in the hopper of the discharge hopper (5), and a plurality of groups of quantitative roller grooves (14) for primary discharge are distributed on the roller surfaces of the two groups of discharge rollers (12) along the circumferential direction of the roller surfaces;

the number of the weighing devices (1) is four, and the four weighing devices (1) are symmetrically arranged at the bottoms of the two groups of supporting frames (2).

2. An automatic weighing apparatus for rubber mixing according to claim 1, wherein a bin (6) for containing rubber raw materials is installed at the upper material opening end of the discharge hopper (5), and the bin (6) is of a conical structure.

3. The automatic weighing device for rubber mixing according to claim 1, wherein a driving motor (10) is installed on one side, opposite to the discharge hopper (5), of the support back of the support frame (2), the output end of the driving motor (10) penetrates through the plate surface of the support frame (2) and is fixedly connected with a third belt pulley (9), one of the two groups of discharge rollers (12) penetrates through the discharge hopper (5) and extends out of the arm strength support (3) and is fixedly connected with the first belt pulley (4), one of the two groups of transmission shafts (17) penetrates through the support frame (2) and is fixedly connected with the second belt pulley (7), and the first belt pulley (4), the second belt pulley (7) and the third belt pulley (9) synchronously rotate through a transmission belt (8).

4. An automatic weighing apparatus for rubber mixing according to claim 1, wherein two sets of said discharge rollers (12) are provided with two sets of meshing gears (13) symmetrically meshed with each other, with one end output end extending through the discharge hopper (5) to the inside of the arm power bracket (3).

5. An automatic weighing device for rubber mixing according to claim 1, wherein a baffle plate (15) close to the belt surface of the conveying belt (11) is arranged in the side, opposite to the discharge opening of the discharge hopper (5), of the support frame of the two groups of support frames (2), and the baffle plate (15) is of an inclined surface structure, and the inclination direction of the baffle plate is opposite to the transmission direction of the conveying belt (11).

6. An automatic weighing device for rubber mixing according to claim 1, characterized in that a plurality of groups of transmission gears (18) for driving the transmission belt (11) to rotate are symmetrically sleeved on the outer side of a shaft lever of the transmission shaft (17) along the shaft lever direction, and a plurality of groups of transmission toothed belts (16) which are meshed with the transmission gears (18) for transmission are symmetrically arranged on the inner belt surface of the transmission belt (11).

7. An automatic weighing device for rubber mixing according to claim 1, characterized in that a supporting plate frame (19) is arranged in the belt surface opposite to the transmission belt (11) between the intervals of the two groups of transmission shafts (17), the supporting plate frame (19) is of a cross structure of a transverse frame and a longitudinal frame, the transverse frame is attached to the upper belt surface of the transmission belt (11), and the longitudinal frame is fixed to the plate surfaces of the two groups of supporting frames (2).