Automatic feeding mechanism applied to rubber compound production process

Abstract

The utility model belongs to the technical field of rubber compound production, and particularly relates to an automatic feeding mechanism applied to a rubber compound production process, which comprises a controller and two weighing sensors fixedly connected to the top of a mixing box, a feeding hole fixedly communicated to the top of the mixing box, and a raw material conveying mechanism, a feeding cylinder is arranged above the two weighing sensors, and a quantitative adding mechanism is arranged between the feeding cylinder and the two weighing sensors. According to the utility model, the structural design is reasonable, raw materials can be effectively crushed before feeding, so that raw material blocks are smaller, blockage caused by overlarge raw material blocks is avoided, the situation that later mixing is not facilitated due to overlarge raw material blocks is avoided, the quality of mixed rubber is ensured, the raw materials can be automatically fed through the automatic feeding mechanism, manual feeding is not needed, and the production efficiency is improved. Raw materials can be quantitatively fed, so that the feeding accuracy is ensured, and the influence on the quality of a rubber compound due to excessive and too small feeding is avoided.

Description

Technical Field

[0001] This utility model relates to the field of rubber compound production technology, and in particular to an automatic feeding mechanism applied in the rubber compound production process. Background Technology

[0002] Rubber compound is a rubber compound made by mixing raw rubber or plasticized rubber with various compounding agents in a rubber mixing mill. It is a semi-finished material for manufacturing rubber products, commonly known as rubber stock. Rubber compound has excellent properties and is widely used in automobile tires, rubber seals, conveyor belts, rubber hoses, and other fields. During the production of rubber compound, an automatic feeding mechanism is required to automatically add raw materials.

[0003] However, in related technologies, during the production of rubber compound, raw materials are generally added manually to the feed inlet of the rubber compound box. This not only increases the labor burden on workers but also makes it difficult to add raw materials evenly, smoothly, and quantitatively, which can easily affect the production of rubber compound. Furthermore, it is inconvenient to crush large, clump-like raw materials before feeding, resulting in raw material blocks that are too large and not conducive to subsequent mixing, thus affecting the quality of the rubber compound. Therefore, we propose an automatic feeding mechanism for the production process of rubber compound to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings mentioned above by proposing an automatic feeding mechanism for use in the production process of rubber compounding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic feeding mechanism for use in the production process of rubber compound includes a controller and two weighing sensors fixedly connected to the top of a mixing tank, a feeding port fixedly connected to the top of the mixing tank, and a raw material conveying mechanism. A feeding cylinder is arranged above the two weighing sensors, and a quantitative feeding mechanism is arranged between the feeding cylinder and the two weighing sensors. A material box is fixedly connected to the top of the feeding cylinder, and a crushing mechanism is arranged on the material box. An automatic feeding mechanism is arranged between the material box and the feeding cylinder, and the raw material conveying mechanism is located above the material box.

[0007] As a preferred embodiment of this utility model, the raw material conveying mechanism includes a conveying cylinder, a conveying motor is fixedly connected to one side of the conveying cylinder, an auger is fixedly connected to the output shaft of the conveying motor, and a hopper is fixedly connected to the top of the conveying cylinder.

[0008] In a preferred embodiment of this invention, the top of the material box is fixedly connected to a second hopper, and the bottom of the conveying cylinder is fixedly connected to a discharge pipe, the bottom end of which extends into the second hopper.

[0009] In a preferred embodiment of this invention, the crushing mechanism includes a drive motor fixedly connected to the front side of the material box, two horizontal shafts rotatably connected to the inner walls of the front and rear sides of the material box, a drive shaft fixedly connected to the output shaft of the drive motor, a driving bevel gear fixedly sleeved on the outer side of the drive shaft, gears fixedly sleeved on the outer side of both horizontal shafts, the two gears meshing, a driven bevel gear fixedly connected to the front end of the left horizontal shaft, the driving bevel gear meshing with the driven bevel gear, and several crushing blades fixedly connected to the outer side of both horizontal shafts.

[0010] As a preferred embodiment of this invention, the shredders on the two horizontal axes are arranged alternately front and back.

[0011] As a preferred embodiment of this utility model, the automatic feeding mechanism includes a worm gear fixedly connected to the bottom end of the drive shaft, and a rotating shaft rotatably connected to the inner walls of the front and rear sides of the feeding cylinder. A worm wheel is fixedly connected to the front end of the rotating shaft, and the worm gear meshes with the worm wheel. A rotating roller is fixedly sleeved on the outer side of the rotating shaft, and a plurality of actuating plates are fixedly connected to the outer side of the rotating roller. One end of the actuating plate movably abuts against the inner wall of the feeding cylinder.

[0012] In a preferred embodiment of this invention, the quantitative addition mechanism includes a fixed frame fixedly connected to the top of the weighing sensor, a feeding cylinder fixedly connected between two fixed frames, an electric push rod fixedly connected to one side of the fixed frame, a gate plate fixedly connected to the output shaft of the electric push rod, the two gate plates abutting against each other, and a discharge port fixedly connected to the bottom of the feeding cylinder, with the two gate plates movably abutting between the discharge port and the feeding port.

[0013] As a preferred embodiment of this utility model, sealing strips are fixedly connected to the sides of the two gates that are close to each other, and the two sealing strips abut against each other.

[0014] In this utility model, an automatic feeding mechanism applied in the production process of rubber compounding uses two weighing sensors to weigh the entire weight of the feeding cylinder, hopper, and raw materials when materials are added. When feeding is required, two electric push rods are activated. The output shafts of these two push rods move two gates away from each other, preventing obstruction of the discharge and feeding ports. Simultaneously, a drive motor is activated, rotating the drive shaft and the driving bevel gear. The driving bevel gear then rotates the driven bevel gear and a horizontal shaft. Through the transmission of the two gears, the two horizontal shafts rotate in opposite directions. The crushing blades on the shaft are arranged alternately back and forth, thus forming opposing shearing forces, which makes the crushing effect of raw materials better and avoids raw material blocks that are too large, which is not conducive to subsequent mixing. This ensures the quality of the compound. Moreover, the crushed raw materials do not clog the connection between the material box and the feeding cylinder, making the feeding more uniform and smooth. At the same time, the drive shaft drives the worm to rotate, the worm to drive the worm wheel and the rotating shaft to rotate slowly, and the rotating shaft drives the rotating roller and multiple agitators to rotate slowly. Under the slow agitation of the raw materials by the multiple agitators, the raw materials can automatically and evenly flow from the feeding cylinder to the discharge port and finally flow into the feeding port.

[0015] In this invention, an automatic feeding mechanism applied to the production process of rubber compounding continuously reduces the amount of raw material in the hopper and feeding cylinder as it is continuously fed. Two weighing sensors measure the weight after the addition. The amount to be added is the total weight minus the weight after the addition. When the set weight is reached, the weighing sensors send a signal to the controller. The controller shuts off the drive motor and reverses the two electric push rods, causing the output shafts of the two electric push rods to drive two gates to approach and abut against each other, thereby sealing the discharge port and the feeding port. This achieves the purpose of quantitative feeding, avoiding adding too much or too little material, which would affect the quality of the rubber compounding. When the weight measured by the two weighing sensors is less than the set value, it indicates that the raw material in the hopper is too small. At this time, the controller starts the conveyor motor, which drives the auger to rotate, thus conveying the raw material into the discharge pipe and finally into the hopper and the hopper. When the weight measured by the two weighing sensors is greater than the maximum value, it indicates that the raw material in the hopper is full, and the conveyor motor can be shut off to continue conveying.

[0016] This utility model has a reasonable structural design. Before feeding, the raw materials can be effectively crushed, making the raw material blocks smaller. This avoids the blockage caused by excessively large raw material blocks, which would be detrimental to the subsequent mixing process, thus ensuring the quality of the compound. Furthermore, the automatic feeding mechanism can automatically feed the raw materials without the need for manual feeding. It can quantitatively feed the raw materials, ensuring the accuracy of feeding and avoiding adding too much or too little, which would affect the quality of the compound. Attached Figure Description

[0017] Figure 1This is a schematic diagram of an automatic feeding mechanism for use in the production process of rubber compounding, as proposed in this utility model.

[0018] Figure 2 This is a partial cross-sectional view of an automatic feeding mechanism for use in the production process of rubber compounding, as proposed in this utility model.

[0019] Figure 3 This is a perspective view of the crushing mechanism and the automatic feeding mechanism of an automatic feeding mechanism applied in the production process of rubber compounding, as proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the auger structure of an automatic feeding mechanism for use in the production process of rubber compounding, as proposed in this utility model.

[0021] In the diagram: 1. Mixing box; 2. Feeding cylinder; 3. Material box; 4. Hopper II; 5. Raw material conveying mechanism; 6. Quantitative addition mechanism; 7. Crushing mechanism; 8. Automatic feeding mechanism; 9. Feeding port; 10. Discharge port; 11. Controller; 51. Conveyor motor; 52. Hopper I; 53. Conveying cylinder; 54. Discharge pipe; 55. Screwdriver; 61. Weighing sensor; 62. Electric push rod; 63. Fixing frame; 64. Gate plate; 65. Sealing strip; 71. Drive motor; 72. Drive shaft; 73. Driving bevel gear; 74. Driven bevel gear; 75. Gear; 76. Horizontal shaft; 77. Crushing blade; 81. Worm; 82. Worm wheel; 83. Rotating shaft; 84. Rotating roller; 85. Actuating plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 An automatic feeding mechanism for use in the production process of rubber compound includes a controller 11 and two weighing sensors 61 fixedly connected to the top of a mixing tank 1, a feeding port 9 fixedly connected to the top of the mixing tank 1, and a raw material conveying mechanism 5. A feeding cylinder 2 is arranged above the two weighing sensors 61, and a quantitative feeding mechanism 6 is arranged between the feeding cylinder 2 and the two weighing sensors 61. A material box 3 is fixedly connected to the top of the feeding cylinder 2, and a crushing mechanism 7 is arranged on the material box 3. An automatic feeding mechanism 8 is arranged between the material box 3 and the feeding cylinder 2. The raw material conveying mechanism 5 is located above the material box 3.

[0024] Furthermore, refer to Figure 1 and Figure 4The raw material conveying mechanism 5 includes a conveying cylinder 53. A conveying motor 51 is fixedly connected to one side of the conveying cylinder 53. An auger 55 is fixedly connected to the output shaft of the conveying motor 51. A hopper 1 52 is fixedly connected to the top of the conveying cylinder 53. A hopper 2 4 is fixedly connected to the top of the material box 3. A discharge pipe 54 is fixedly connected to the bottom of the conveying cylinder 53. The bottom end of the discharge pipe 54 extends into the hopper 2 4.

[0025] Using the above scheme: when the weight measured by the two weighing sensors 61 is less than the set minimum value, it means that the raw material in the material bin 3 is small. At this time, the controller 11 starts the conveyor motor 51, which drives the auger 55 to rotate, so that the raw material can be conveyed into the discharge pipe 54 and finally flow into the hopper 4 and the material bin 3. When the weight measured by the two weighing sensors 61 is greater than the maximum value, it means that the raw material in the material bin 3 has been filled, and the conveyor motor 51 can be turned off to continue conveying.

[0026] Furthermore, refer to Figures 1-3 The crushing mechanism 7 includes a drive motor 71 fixedly connected to the front side of the material box 3, two horizontal shafts 76 rotatably connected to the inner walls of the front and rear sides of the material box 3, a drive shaft 72 fixedly connected to the output shaft of the drive motor 71, a drive bevel gear 73 fixedly sleeved on the outer side of the drive shaft 72, gears 75 fixedly sleeved on the outer side of both horizontal shafts 76, the two gears 75 meshing with each other, a driven bevel gear 74 fixedly connected to the front end of the left horizontal shaft 76, the drive bevel gear 73 meshing with the driven bevel gear 74, and a number of crushing blades 77 fixedly connected to the outer side of both horizontal shafts 76, the crushing blades 77 on the two horizontal shafts 76 being arranged alternately front and back.

[0027] Using the above scheme: Start the drive motor 71, which drives the drive shaft 72 and the active bevel gear 73 to rotate. The active bevel gear 73 drives the driven bevel gear 74 and a horizontal shaft 76 to rotate. Through the transmission of two gears 75, the two horizontal shafts 76 are driven to rotate in opposite directions. Because the crushing blades 77 on the two horizontal shafts 76 are distributed alternately back and forth, they form opposing shearing forces, which makes the crushing effect of the raw materials better, avoids the raw material blocks being too large, which is not conducive to the later mixing, and thus ensures the quality of the mixed rubber. Moreover, the crushed raw materials do not block the connection between the material box 3 and the feeding cylinder 2, making the feeding more uniform and smooth.

[0028] Furthermore, refer to Figures 1-3 The automatic feeding mechanism 8 includes a worm 81 fixedly connected to the bottom end of the drive shaft 72, and a rotating shaft 83 rotatably connected to the inner walls of the front and rear sides of the feeding cylinder 2. A worm wheel 82 is fixedly connected to the front end of the rotating shaft 83, and the worm 81 meshes with the worm wheel 82. A rotating roller 84 is fixedly sleeved on the outer side of the rotating shaft 83, and a number of actuating plates 85 are fixedly connected to the outer side of the rotating roller 84. One end of the actuating plate 85 moves against the inner wall of the feeding cylinder 2.

[0029] Using the above scheme: the rotation of the drive shaft 72 drives the rotation of the worm 81, the worm 81 drives the worm wheel 82 and the rotating shaft 83 to rotate slowly, the rotating shaft 83 drives the rotating roller 84 and multiple agitator plates 85 to rotate slowly. Under the slow agitation of the raw material by the multiple agitator plates 85, the raw material can automatically and evenly flow smoothly from the feeding cylinder 2 to the discharge port 10, and finally flow into the feeding port 9.

[0030] Furthermore, refer to Figure 1 and Figure 2 The quantitative addition mechanism 6 includes a fixed frame 63 fixedly connected to the top of the weighing sensor 61, a feeding cylinder 2 fixedly connected between the two fixed frames 63, an electric push rod 62 fixedly connected to one side of the fixed frame 63, a gate plate 64 fixedly connected to the output shaft of the electric push rod 62, the two gate plates 64 abutting against each other, a discharge port 10 fixedly connected to the bottom of the feeding cylinder 2, the two gate plates 64 movably abutting between the discharge port 10 and the feeding port 9, and a sealing strip 65 fixedly connected to the side of the two gate plates 64 that are close to each other, the two sealing strips 65 abutting against each other.

[0031] The above scheme is adopted as follows: with continuous feeding, the raw materials in the material box 3 and the feeding cylinder 2 are continuously reduced. The weight after feeding can be measured by two weighing sensors 61. When the total weight is subtracted from the weight after feeding, the amount to be added is obtained. When the set weight is reached, the weighing sensor 61 sends a signal to the controller 11. The controller 11 shuts off the drive motor 71 and starts the two electric push rods 62 in reverse. This causes the output shafts of the two electric push rods 62 to drive the two gates 64 to move closer to each other and abut against each other, thereby blocking the discharge port 10 and the feeding port 9. This achieves the purpose of quantitative feeding and avoids adding too much or too little, which would affect the quality of the compound.

[0032] In this invention, when materials are added, the weight of the feeding cylinder 2, the material box 3, and the raw material as a whole can be weighed by two weighing sensors 61. When feeding is required, two electric push rods 62 are activated. The output shafts of the two electric push rods 62 drive the two gates 64 to move away from each other without blocking the discharge port 10 and the feeding port 9. At the same time, the drive motor 71 is activated, which drives the drive shaft 72 and the active bevel gear 73 to rotate. The active bevel gear 73 drives the driven bevel gear 74 and a horizontal shaft 76 to rotate. Through the transmission of two gears 75, the two horizontal shafts 76 are driven to rotate in opposite directions. Due to the crushing blades 77 on the two horizontal shafts 76... The materials are distributed alternately front and back, thus forming opposing shear forces, which improves the crushing effect of the raw materials and avoids excessively large raw material blocks that are not conducive to subsequent mixing, thereby ensuring the quality of the mixed rubber. The crushed raw materials also prevent clogging at the connection between the material box 3 and the feeding cylinder 2, making the feeding more uniform and smooth. At the same time, the drive shaft 72 drives the worm 81 to rotate, which in turn drives the worm wheel 82 and the rotating shaft 83 to rotate slowly. The rotating shaft 83 drives the rotating roller 84 and multiple actuating plates 85 to rotate slowly. Under the slow actuation of the raw materials by the multiple actuating plates 85, the raw materials can automatically and evenly flow from the feeding cylinder 2 to the discharge port 10, and finally flow into the feeding port 9.

[0033] As material is continuously added, the amount of raw material in the material bin 3 and the feeding cylinder 2 decreases. Two weighing sensors 61 measure the weight after addition. Subtracting the added weight from the total weight gives the amount to be added. When the set weight is reached, the weighing sensors 61 send a signal to the controller 11. The controller 11 shuts off the drive motor 71 and reverses the two electric push rods 62, causing their output shafts to drive the two gate plates 64 to approach and abut against each other, thereby blocking the discharge port 10 and the feeding port 9. To achieve the purpose of quantitative feeding and avoid adding too much or too little material, which would affect the quality of the compound, when the weight measured by the two weighing sensors 61 is less than the set value, it means that the raw material in the material box 3 is too small. At this time, the controller 11 starts the conveyor motor 51, which drives the auger 55 to rotate, and then conveys the raw material into the discharge pipe 54, and finally into the hopper 2 4 and the material box 3. When the weight measured by the two weighing sensors 61 is greater than the maximum value, it means that the raw material in the material box 3 has been filled, and the conveyor motor 51 can be turned off to continue conveying.

Claims

1. An automatic feeding mechanism applied to a process of producing a rubber mixture, characterized in that, The utility model relates to a raw material conveying mechanism, including the controller (11) fixedly connected in the top of mixing chamber (1) with two weighing sensors (61), the feeding opening (9) fixedly communicated in the top of mixing chamber (1) and raw material conveying mechanism (5), the top of feeding cylinder (2) is provided with feeding opening (9) in the top of two weighing sensors (61), be provided with ration adding mechanism (6) between feeding cylinder (2) and two weighing sensors (61), the top of feeding cylinder (2) is fixedly communicated with material box (3), be provided with crushing mechanism (7) on material box (3), be provided with automatic feeding mechanism (8) between material box (3) and feeding cylinder (2), raw material conveying mechanism (5) is located the top of material box (3).

2. The automatic feeding mechanism for use in the production process of a rubber mixture according to claim 1, wherein The raw material conveying mechanism (5) includes a conveying cylinder (53), one side of the conveying cylinder (53) is fixedly connected with a conveying motor (51), the output shaft of the conveying motor (51) is fixedly connected with an auger (55), and the top of the conveying cylinder (53) is fixedly communicated with a hopper one (52).

3. The automatic feeding mechanism for use in the production process of a rubber mixture according to claim 2, wherein The top of the material box (3) is fixedly communicated with a hopper two (4), the bottom of the conveying cylinder (53) is fixedly communicated with a discharging pipe (54), and the bottom end of the discharging pipe (54) extends into the hopper two (4).

4. The automatic feeding mechanism for use in the production process of a rubber mixture according to claim 1, wherein The crushing mechanism (7) includes a drive motor (71) fixedly connected to the front side of the material box (3), two horizontal shafts (76) rotatably connected to the inner walls of the front and rear sides of the material box (3), a drive shaft (72) fixedly connected to the output shaft of the drive motor (71), a driving bevel gear (73) fixedly sleeved to the outer side of the drive shaft (72), two gears (75) fixedly sleeved to the outer sides of the two horizontal shafts (76), the front end of the left horizontal shaft (76) being fixedly connected with a driven bevel gear (74), the driving bevel gear (73) being engaged with the driven bevel gear (74), and a plurality of crushing knives (77) fixedly connected to the outer sides of the two horizontal shafts (76).

5. The automatic feeding mechanism for use in the production process of a rubber mixture according to claim 4, wherein The crushing knives (77) on the two horizontal shafts (76) are arranged alternately in front and back.

6. The automatic feeding mechanism for use in the production process of a rubber mixture according to claim 4, wherein The automatic feeding mechanism (8) includes a worm (81) fixedly connected to the bottom end of the drive shaft (72), and a rotating shaft (83) rotatably connected to the inner walls of the front and rear sides of the feeding cylinder (2), the front end of the rotating shaft (83) being fixedly connected with a worm wheel (82), the worm (81) being engaged with the worm wheel (82), a rotating roller (84) fixedly sleeved to the outer side of the rotating shaft (83), a plurality of poking pieces (85) fixedly connected to the outer side of the rotating roller (84), and one end of the poking piece (85) movably abutting against the inner wall of the feeding cylinder (2).

7. The automatic feeding mechanism for use in the production process of a rubber mixture according to claim 1, wherein The quantitative adding mechanism (6) comprises a fixed frame (63) fixedly connected on the top of the weighing sensor (61), the feeding cylinder (2) is fixedly connected between the two fixed frames (63), one side of the fixed frame (63) is fixedly connected with an electric push rod (62), the output shaft of the electric push rod (62) is fixedly connected with a shutter (64), the two shutters (64) abut against each other, the bottom of the feeding cylinder (2) is fixedly connected with a discharge port (10), and the two shutters (64) movably abut between the discharge port (10) and the feeding port (9).

8. The automatic feeding mechanism for use in the production process of a rubber mixture according to claim 7, wherein The side, where the two shutters (64) are close to each other, is fixedly connected with a sealing strip (65), and the two sealing strips (65) abut against each other.

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