Proportioning system for brake pad production raw materials and proportioning method thereof

Abstract

The invention discloses a proportioning system for brake pad production raw materials and a proportioning method thereof. The proportioning system comprises a control cabinet, a horizontal mixing device, two horizontal stirring devices and a plurality of proportioning and feeding devices. According to the proportioning system and the proportioning method thereof, each ingredient can be loaded by utilizing each proportioning and feeding device, so that the conveying quantity of each ingredient is accurately controlled by controlling the conveying speed and duration of each proportioning and feeding device, the accurate and automatic proportioning of each ingredient is realized, manual operation is avoided, and the proportioning progress and efficiency are guaranteed; each proportioning and feeding device is divided into two stirring groups, the two horizontal stirring devices are respectively used for stirring and uniformly mixing, and finally, the horizontal uniform mixing device is used for integrally uniformly mixing the two stirring groups, so that the requirement of fully mixing various ingredients can be met.

Description

Technical Field

[0001] This invention relates to a proportioning system and a proportioning method thereof, and more particularly to a proportioning system and a proportioning method thereof for raw materials used in brake pad production. Background Technology

[0002] With the rapid development of the automotive industry, the market demand for brake pads continues to rise, while higher requirements are being placed on their performance consistency. However, most brake pad manufacturers still use the traditional manual mixing method for raw material preparation. This method has many insurmountable technical drawbacks and has become a core bottleneck restricting the improvement of brake pad production efficiency and product quality.

[0003] First, the automation level of manual mixing is extremely low, relying entirely on operators to manually complete processes such as weighing, feeding, mixing, and recording parameters. Brake pad friction materials typically contain more than ten components, each with significantly different weight percentages. Manual weighing is prone to errors due to visual biases and varying operator skill levels, leading to mixing deviations and fluctuations in product performance, resulting in substandard products. Furthermore, manual operation requires weighing and feeding each component individually, a cumbersome and time-consuming process. For large-scale production, this often necessitates a significant investment of manpower, hindering production efficiency and failing to meet the pace requirements of modern production lines.

[0004] Secondly, the manual mixing process suffers from poor controllability and lacks effective real-time monitoring and data traceability mechanisms. Operators may make operational errors during the mixing process, such as incorrect material addition order, insufficient mixing time, or over-mixing. These errors are difficult to detect and correct in a timely manner, further exacerbating the instability of product quality. In addition, manually recorded mixing data is prone to omissions and alterations, failing to form a complete production data chain and posing significant challenges to subsequent product quality traceability and production process improvement.

[0005] Furthermore, with the research and development and promotion of high-performance brake pads, friction material formulations are becoming increasingly complex, requiring more precise proportioning parameters, which places higher demands on the accuracy and response speed of the proportioning system. Traditional manual proportioning methods and existing partial automation solutions are both unable to accurately match the implementation requirements of the optimized formulation, resulting in a disconnect between formulation design and actual production, and failing to fully leverage the technical advantages of high-performance formulations.

[0006] In summary, the current field of brake pad production raw material proportioning generally suffers from low automation, low production efficiency, and insufficient product quality consistency, which seriously restricts the intelligent upgrading and product quality improvement of the brake pad manufacturing industry. Therefore, developing a brake pad production raw material proportioning system and method with a high degree of automation and strong process controllability has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] The purpose of this invention is to provide a proportioning system and method for raw materials used in brake pad production, which enables automated proportioning and conveying of multiple ingredients, and batch mixing of multiple raw materials to ensure the mixing effect and thus guarantee product quality.

[0008] Technical Solution: The present invention provides a proportioning system for raw materials used in brake pad production, comprising a control cabinet, a horizontal mixing device, two horizontal stirring devices, and multiple proportioning feeding devices. Each proportioning feeding device is divided into two groups, used to store the various ingredients for brake pad production, and to precisely convey the ingredients from each group of proportioning feeding devices to the two horizontal stirring devices. The two horizontal stirring devices perform a first-stage mixing of the conveyed ingredients, and then convey the first-stage mixed ingredients to the horizontal mixing device. The horizontal mixing device performs a second-stage mixing of the conveyed ingredients to obtain the final mixed raw material. The horizontal mixing device, the two horizontal stirring devices, and each proportioning feeding device are all driven and controlled by the control cabinet.

[0009] Furthermore, the proportioning and feeding device includes a storage hopper, a proportioning conveying auger, a proportioning drive motor, and a vibrator; the storage hopper is equipped with hopper support legs at the bottom and a discharge port at the bottom of the storage hopper; the proportioning conveying auger is installed at an angle on the side of the storage hopper, and the proportioning inlet and outlet of the proportioning conveying auger are connected; the proportioning drive motor is installed on the upper end of the proportioning conveying auger and drives the proportioning conveying auger through a sprocket transmission unit; the proportioning outlet of the proportioning conveying auger is connected to the inlet of the horizontal mixing device through a proportioning conveying pipe; the vibrator is installed on the bottom of the storage hopper; the proportioning drive motor and the vibrator are driven and controlled by a control cabinet.

[0010] Furthermore, the horizontal mixing device includes a mixing cylinder, a vertical mixing mechanism, a discharge switch mechanism, a conveying drive motor, and a conveying auger. The bottom of the mixing cylinder is conical, and vertical support legs are installed on the conical bottom. The discharge switch mechanism is located at the bottom opening of the conical bottom and is used to control the opening and closing of the bottom opening. The conveying auger is installed obliquely on the side of the mixing cylinder, and the conveying inlet of the conveying auger is connected to the discharge switch mechanism. The discharge outlet of the conveying auger is used to connect to the inlet of the horizontal mixing device. The conveying drive motor is installed on the upper end of the conveying auger and drives the conveying auger through a sprocket transmission unit. The vertical mixing mechanism is installed on the mixing cylinder and is used to mix the raw materials inside the mixing cylinder. The vertical mixing mechanism, the discharge switch mechanism, and the conveying drive motor are all driven and controlled by a control cabinet.

[0011] Furthermore, the vertical stirring mechanism includes a stirring drive motor, a stirring support beam, a stirring shaft, an upper stirring blade, and a lower stirring blade. The stirring support beam is longitudinally fixedly installed on the top of the stirring cylinder. The stirring drive motor is mounted on the stirring support beam via a motor support, and a stirring drive gear is installed on the output shaft of the stirring drive motor. The stirring shaft is rotatably and vertically installed at the center of the stirring cylinder, with its upper end penetrating the stirring support beam. A driven stirring gear that meshes with the stirring drive gear is provided on the upper end of the stirring shaft. Both the upper and lower stirring blades are fixedly installed on the stirring shaft, with the upper stirring blade located in the middle of the stirring cylinder and the lower stirring blade located inside the conical bottom. Various stirring holes are distributed on both the upper and lower stirring blades. The stirring drive motor is driven and controlled by a control cabinet.

[0012] Furthermore, the discharge switch mechanism includes an L-shaped support plate, a switch disc, a rotary drive motor, an arc-shaped drive rack, and a rotary drive gear. One end of the L-shaped support plate is fixed to the conical bottom, and the other end extends horizontally. A fixed shaft connects the conical bottom and the horizontal plate of the L-shaped support plate. The switch disc is rotatably mounted on the fixed shaft, and the upper side of the switch disc is close to the bottom opening of the conical bottom. A discharge hole is provided on the switch disc, which is opposite to the bottom opening of the conical bottom. A connecting hole for connecting with the conveying inlet of the conveying auger is provided on the horizontal plate of the L-shaped support plate below the bottom opening of the conical bottom. An arc-shaped groove is provided on the circumferential edge of the lower side of the switch disc, and the arc-shaped drive rack is installed in the arc-shaped groove. The rotary drive motor is mounted on the L-shaped support plate, and the rotary drive gear is mounted on the output shaft end of the rotary drive motor. The rotary drive gear meshes with the arc-shaped drive rack to drive the switch disc to rotate. The rotary drive motor is driven and controlled by a control cabinet.

[0013] Furthermore, the horizontal mixing device includes a horizontal tank, a swing support mechanism, a horizontal stirring mechanism, a feed switch mechanism, and a discharge switch mechanism. The horizontal tank is rotatably mounted on the swing support mechanism in the middle, and the swing support mechanism drives the horizontal tank to rotate. The horizontal stirring mechanism is installed on the discharge side end face of the horizontal tank and is used to stir the ingredients inside the horizontal tank. The feed switch mechanism is installed on the feed side end face of the horizontal tank and is used to control the opening and closing of the feed. The discharge switch mechanism is installed on the discharge side wall of the horizontal tank and is used to control the opening and closing of the discharge. The swing support mechanism, the horizontal stirring mechanism, and the feed switch mechanism are all driven and controlled by a control cabinet.

[0014] Furthermore, the oscillating support mechanism includes an oscillating drive motor, an oscillating support frame, an oscillating drive worm gear, and an oscillating drive worm; the horizontal stirring mechanism includes a rolling drive motor, a rolling agitator shaft, a strip stirring plate, a rolling drive gear, and a rolling driven gear; an oscillating support shaft is provided in the middle of the horizontal tank and is oscillatingly mounted on the oscillating support frame via the oscillating support shaft; the oscillating drive worm gear is mounted on the oscillating support shaft, and the oscillating drive worm is rotatably mounted on the oscillating support frame, with the oscillating drive worm gear meshing with the oscillating drive worm; the oscillating drive motor is mounted on the oscillating support frame and is used to rotate the oscillating drive worm; one end of the rolling agitator shaft is rotatably mounted through the horizontal tank. The discharge side of the tank is located at the center, and the other end is rotatably mounted inside the horizontal tank via an internal support. The tumbling shaft is located on the central axis of the horizontal tank. Pairs of radial rods are arranged on the tumbling shaft, and strip-shaped stirring plates are installed at the ends of each pair of radial rods. The strip-shaped stirring plates are parallel to the tumbling shaft and close to the inner circumference of the horizontal tank. A rolling drive motor is mounted on the outer end face of the discharge side of the horizontal tank. A rolling drive gear is mounted on the output shaft of the rolling drive motor, and a rolling driven gear is mounted on the extended end of the tumbling shaft, meshing with the rolling driven gear. Both the oscillating drive motor and the rolling drive motor are controlled by a control cabinet.

[0015] Furthermore, the feeding switch mechanism includes a feeding drive motor, a feeding drive gear, a feeding driven gear, a circular baffle, a rotary mounting shaft, and two conical funnels. The feeding drive motor is mounted on the outer end face of the feeding side of the horizontal tank, and the feeding drive gear is mounted on the output shaft of the feeding drive motor. A circular groove is provided on the inner end face of the feeding side of the horizontal tank, and the circular baffle is rotatably mounted in the circular groove via the rotary mounting shaft. Two feeding ports are provided on the feeding side end face of the horizontal tank, and the bottoms of the two conical funnels are respectively connected to the two feeding ports. Two feeding communication holes are provided on the circular baffle for connecting to the two feeding ports respectively. A sealing gasket for sealing the two feeding ports is semi-embedded on the inner side of the circular baffle. The feeding driven gear is fixedly mounted on the outer end of the rotary mounting shaft, and the feeding drive gear meshes with the feeding driven gear. The feeding drive motor is driven and controlled by a control cabinet.

[0016] Furthermore, the discharge switch mechanism includes an arc-shaped insert plate and a hand-tightening bolt; a discharge window is provided on the side wall of the horizontal tank, and the discharge window extends to the outer end face of the discharge side of the horizontal tank; one end of the arc-shaped insert plate is inserted into the discharge window to close the discharge window, and the other end edge of the arc-shaped insert plate is provided with an installation flange; a locking hole is provided on the installation flange, and a locking threaded hole is provided on the outer end face of the discharge side of the horizontal tank at the locking hole; the hand-tightening bolt passes through the locking hole and is screwed into the locking threaded hole; a limit slot is provided on the edge of the discharge window, and a limit protrusion that slides into the limit slot is provided on the edge of the arc-shaped insert plate.

[0017] The present invention also provides a proportioning method for a proportioning system for raw materials used in brake pad production, comprising the following steps:

[0018] Step 1: Take seven proportioning feeding devices as the first group, and take another eight proportioning feeding devices as the second group. Connect the discharge port of each proportioning feeding device in the first group to the inlet of the first horizontal mixing device, and connect the discharge port of each proportioning feeding device in the second group to the inlet of the second horizontal mixing device.

[0019] Step 2: Cellulose fiber, acrylic fiber, steel fiber, barium sulfate, phenolic resin and carbon black are stored in the seven proportioning feeding devices of the first group, and nitrile rubber powder, antimony sulfide, light calcium carbonate, zinc oxide, flake graphite, artificial graphite and friction powder are stored in the eight proportioning feeding devices of the second group.

[0020] Step 3: Set the feeding ratio data for the seven feeding devices in the first group and the eight feeding devices in the second group on the control cabinet. The weight ratio of cellulose fiber, acrylic fiber, steel fiber, barium sulfate, phenolic resin and carbon black is 3:5.5:12:20:8:0.5. The weight ratio of nitrile rubber powder, antimony sulfide, light calcium carbonate, zinc oxide, flake graphite, artificial graphite and friction powder is 3:4:12:2:12:15:3.

[0021] Step 4: Drive and control the seven proportioning feeding devices of the first group and the eight proportioning feeding devices of the second group through the control cabinet, and deliver the ingredients to their respective horizontal mixing devices according to the set feeding proportion data.

[0022] Step 5: After the ingredients are conveyed, the control cabinet drives and controls the two horizontal mixing devices to mix for eight minutes. After the mixing is completed, the two horizontal mixing devices convey their mixed ingredients to the horizontal mixing device.

[0023] Step 6: The horizontal mixing device is driven and controlled by the control cabinet. The horizontal mixing device performs horizontal mixing of the mixed ingredients conveyed by the two horizontal stirring devices. The mixing time is set to eight minutes.

[0024] Step 7: After the horizontal mixing device reaches the required mixing time, discharge the mixed ingredients from the horizontal mixing device.

[0025] Compared with the prior art, the beneficial effects of this invention are as follows: by utilizing each proportioning feeding device to load each ingredient separately, the conveying amount of each ingredient can be precisely controlled by controlling the conveying speed and duration of each proportioning feeding device, thereby achieving precise automatic proportioning of each ingredient, avoiding manual labor, and ensuring proportioning progress and efficiency; by dividing each proportioning feeding device into two mixing groups, each is stirred and mixed by two horizontal mixing devices, and finally the two mixing groups are mixed as a whole by a horizontal mixing device, thus meeting the need for thorough mixing of multiple ingredients. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the front view structure of the system of the present invention;

[0027] Figure 2 This is a top view of the structure of the four proportioning and feeding devices of the present invention placed side by side;

[0028] Figure 3 This is a front view of the horizontal stirring device of the present invention.

[0029] Figure 4 This is a cross-sectional view of the horizontal stirring device of the present invention;

[0030] Figure 5 This is a schematic diagram of the switch disk structure of the present invention;

[0031] Figure 6 This is a front view schematic diagram of the horizontal mixing device of the present invention;

[0032] Figure 7 This is a top view of the horizontal mixing device of the present invention.

[0033] Figure 8 This is a cross-sectional view of the horizontal mixing device of the present invention.

[0034] Figure 9 This is a schematic diagram of the circuit structure of the present invention. Detailed Implementation

[0035] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.

[0036] like Figure 1-9As shown, the proportioning system for brake pad production raw materials disclosed in this invention includes: a control cabinet 1, a horizontal mixing device, two horizontal stirring devices, and multiple proportioning feeding devices; each proportioning feeding device is divided into two groups, used to store the various ingredients of brake pad production raw materials respectively, and to accurately transport the various ingredients of the two groups of proportioning feeding devices to the two horizontal stirring devices respectively; the two horizontal stirring devices are used to perform a first-stage mixing and stirring of the transported ingredients, and to transport the ingredients after the first-stage mixing and stirring to the horizontal mixing device; the horizontal mixing device is used to perform a second-stage mixing and stirring of the transported ingredients to obtain the final mixed raw materials; the horizontal mixing device, the two horizontal stirring devices, and each proportioning feeding device are all driven and controlled by the control cabinet 1.

[0037] Each ingredient can be loaded separately using various feeding devices, and the conveying speed and duration of each feeding device can be controlled to precisely control the conveying amount of each ingredient, achieving accurate automatic proportioning of each ingredient, avoiding manual labor, and ensuring proportioning progress and efficiency. Each feeding device is divided into two mixing groups, which are mixed by two horizontal mixing devices, and finally mixed by a horizontal mixing device to achieve overall mixing of the two mixing groups. This can meet the need for thorough mixing of multiple ingredients.

[0038] like Figure 1 and 2 As shown, the proportioning and feeding device includes a storage hopper 2, a proportioning conveying auger 5, a proportioning drive motor 32, and a vibrator 4. The storage hopper 2 has a hopper support leg 3 at its bottom and a discharge port 19 at its bottom. The proportioning conveying auger 5 is installed at an angle on the side of the storage hopper 2, and its proportioning inlet is connected to the discharge port 19. The proportioning drive motor 32 is installed on the upper end of the proportioning conveying auger 5 and drives it through a sprocket transmission unit. The proportioning discharge port of the proportioning conveying auger 5 is connected to the inlet of the horizontal mixing device through a proportioning conveying pipe 33. The vibrator 4 is installed on the bottom of the storage hopper 2. The proportioning drive motor 32 and the vibrator 4 are driven and controlled by the control cabinet 1. The vibrator 4 ensures that the proportioning materials entering the proportioning conveying auger 5 remain compacted, guaranteeing the accuracy of the proportioning components conveyed by the auger 5.

[0039] like Figure 3-5As shown, the horizontal mixing device includes a mixing cylinder 6, a vertical mixing mechanism, a discharge switch mechanism, a conveying drive motor 34, and a conveying auger 31. The bottom of the mixing cylinder 6 is a conical bottom 29, on which cylinder support legs 7 are vertically installed. The discharge switch mechanism is located at the bottom opening of the conical bottom 29 and is used to control the opening and closing of the bottom opening. The conveying auger 31 is installed obliquely on the side of the mixing cylinder 6, and the conveying inlet of the conveying auger 31 is connected to the discharge switch mechanism. The discharge outlet of the conveying auger 31 is used to connect to the inlet of the horizontal mixing device. The conveying drive motor 34 is installed on the upper end of the conveying auger 31 and drives the conveying auger 31 through a sprocket transmission unit. The vertical mixing mechanism is installed on the mixing cylinder 6 and is used to mix the raw materials inside the mixing cylinder 6. The vertical mixing mechanism, the discharge switch mechanism, and the conveying drive motor 34 are all driven and controlled by the control cabinet 1. The conical bottom 29 allows the mixed ingredients to converge towards the bottom when discharged, thus enabling complete conveying via the conveying auger 31.

[0040] like Figure 3-5 As shown, the vertical stirring mechanism includes a stirring drive motor 8, a stirring support beam 22, a stirring shaft 24, an upper stirring blade 25, and a lower stirring blade 21. The stirring support beam 22 is longitudinally fixedly installed on the top of the stirring cylinder 6. The stirring drive motor 8 is mounted on the stirring support beam 22 via a motor support, and a stirring drive gear 9 is installed on the output shaft of the stirring drive motor 8. The stirring shaft 24 is rotatably and vertically installed at the center of the stirring cylinder 6 via a rotating shaft bracket 23, and the upper end of the stirring shaft 24 passes through the stirring support beam 22. A [missing information - likely a device or structure] is provided on the upper end of the stirring shaft 24. A driven gear 12 for stirring is provided, meshing with the stirring drive gear 9. The upper stirring blade 25 and the lower stirring blade 21 are both fixedly mounted on the stirring shaft 24. The upper stirring blade 25 is located in the middle of the stirring cylinder 6, and the lower stirring blade 21 is located inside the conical bottom 29. The upper stirring blade 25, the lower stirring blade 21, and the stirring shaft 24 all form a certain angle, thus enabling the material to tumble up and down. Various stirring holes 26 are distributed on both the upper stirring blade 25 and the lower stirring blade 21. The stirring drive motor 8 is driven and controlled by the control cabinet 1. Multi-layer stirring can be achieved using the upper stirring blade 25 and the lower stirring blade 21, and material can be discharged through the various stirring holes 26, further enhancing the stirring effect.

[0041] like Figure 3 and 4As shown, a top cover plate 20 is hinged to the top of the mixing cylinder 6 and on both the left and right sides of the mixing support beam 22 to cover the top of the left and right sides. A top feed inlet is provided on the top cover plate 20, and a strip collection trough 11 is installed longitudinally on the top feed inlet. The top of the strip collection trough 11 is designed in a V shape, so that the ingredients conveyed by each proportion feeding device are gathered in the middle and enter the mixing cylinder 6 from the top feed inlet.

[0042] like Figure 3-5 As shown, the discharge switch mechanism includes an L-shaped support plate 13, a switch disc 28, a rotary drive motor 17, an arc-shaped drive rack 27, and a rotary drive gear 16; one end of the L-shaped support plate 13 is fixed to a conical bottom 29, and the other end extends horizontally; a fixed shaft 10 connects the conical bottom 29 and the horizontal plate of the L-shaped support plate 13; the switch disc 28 is rotatably mounted on the fixed shaft 10, and the upper side of the switch disc 28 is close to the bottom opening of the conical bottom 29; a discharge hole 30 is provided on the switch disc 28, which is connected to the bottom opening of the conical bottom 29; the L-shaped support plate 13... A connecting material hole 14 is provided on the horizontal plate of 3 below the bottom opening of the conical bottom 29 for connecting with the feeding port of the conveying auger 31; an arc groove 18 is provided on the circumferential edge of the lower side of the switch disk 28, and an arc drive rack 27 is installed in the arc groove 18; the rotary drive motor 17 is mounted on the L-shaped support plate 13 through the motor bracket, and the rotary drive gear 16 is mounted on the output shaft end of the rotary drive motor 17, and the rotary drive gear 16 meshes with the arc drive rack 27 to drive the switch disk 28 to rotate; the rotary drive motor 17 is driven and controlled by the control cabinet 1. The fixed shaft 10 enhances the horizontal installation stability of the L-shaped support plate 13 and allows for the rotatable installation of the switch disc 28. The material leakage hole 30 on the switch disc 28 connects with the bottom opening of the conical bottom 29 after rotation, allowing the mixed ingredients to be discharged from the bottom. The rotation drive gear 16 and the arc-shaped drive rack 27 facilitate the rotation drive of the switch disc 28. The switch disc 28 is positioned close to the bottom opening of the conical bottom 29, ensuring a flat bottom when closed, which facilitates the mixing of the lower stirring blades 21, rather than directly connecting with the conveying inlet of the conveying auger 31 and leaving a mixing blind zone.

[0043] like Figure 6-8As shown, the horizontal mixing device includes a horizontal tank 35, a swing support mechanism, a horizontal stirring mechanism, a feed switch mechanism, and a discharge switch mechanism. The horizontal tank 35 is rotatably mounted on the swing support mechanism in the middle, which drives the horizontal tank 35 to rotate. The horizontal stirring mechanism is installed on the discharge side end face of the horizontal tank 35 for stirring the ingredients inside the horizontal tank 35. The feed switch mechanism is installed on the feed side end face of the horizontal tank 35 for controlling the opening and closing of the feed. The discharge switch mechanism is installed on the discharge side wall of the horizontal tank 35 for controlling the opening and closing of the discharge. The swing support mechanism, the horizontal stirring mechanism, and the feed switch mechanism are all driven and controlled by the control cabinet 1. The angle of the horizontal tank 35 can be adjusted using the swing support mechanism to achieve horizontal stirring, vertical feeding, and inverted tilting discharging states, allowing switching between the three angle states.

[0044] like Figure 6-8 As shown, the oscillating support mechanism includes an oscillating drive motor 50, an oscillating support frame 36, an oscillating drive worm gear 51, and an oscillating drive worm 52; the horizontal stirring mechanism includes a rolling drive motor 49, a rolling stirring shaft 54, a strip stirring plate 56, a rolling drive gear 53, and a rolling driven gear 47; an oscillating support shaft 41 is provided in the middle of the horizontal tank 35, and is oscillatingly mounted on the oscillating support frame 36 via the oscillating support shaft 41; the oscillating drive worm gear 51 is mounted on the oscillating support shaft 41, and the oscillating drive worm 52 is rotatably mounted on the oscillating support frame 36, with the oscillating drive worm gear 51 meshing with the oscillating drive worm 52; the oscillating drive motor 50 is mounted on the oscillating support frame 36 and is used to rotate the oscillating drive worm 52; one end of the rolling stirring shaft 54 ​​is rotatably mounted through the horizontal tank 35. The discharge side end face is located at the center, and the other end is rotatably installed inside the horizontal tank 35 via an internal bracket 57. The tumbling shaft 54 ​​is located on the central axis of the horizontal tank 35. Each radial rod 55 is arranged in pairs on the tumbling shaft 54, and each strip stirring plate 56 is installed on the end of each pair of radial rods 55. The strip stirring plate 56 is parallel to the tumbling shaft 54 ​​and close to the inner circumference of the horizontal tank 35. The rolling drive motor 49 is installed on the outer end face of the discharge side of the horizontal tank 35 via an end face bracket 48. The rolling drive gear 53 is installed on the output shaft of the rolling drive motor 49, and the rolling driven gear 47 is installed on the extended end of the tumbling shaft 54. The rolling drive gear 53 and the rolling driven gear 47 mesh with each other. The oscillating drive motor 50 and the rolling drive motor 49 are both driven and controlled by the control cabinet 1. By utilizing the cooperation between the swing drive worm 51 and the swing drive worm 52, swing drive can be achieved, and angle locking can be achieved after the drive stops; the horizontal stirring mechanism can stir the horizontal tank 35 when it swings to the horizontal position, thereby continuously tumbling and mixing the ingredients in the upper and lower layers, effectively enhancing the mixing effect.

[0045] like Figure 6-8 As shown, the feeding switch mechanism includes a feeding drive motor 38, a feeding drive gear 39, a feeding driven gear 40, a circular baffle 58, a rotary mounting shaft 59, and two conical funnels 37. The feeding drive motor 38 is mounted on the outer end face of the feeding side of the horizontal tank 35 via a motor bracket, and the feeding drive gear 39 is mounted on the output shaft of the feeding drive motor 38. A circular groove 15 is provided on the inner end face of the feeding side of the horizontal tank 35, and the circular baffle 58 is rotatably mounted in the circular groove 15 via the rotary mounting shaft 59. Two feed inlets 60 are provided on the material side end face, and the bottoms of two conical funnels 37 are respectively connected to the two feed inlets 60. Two feed communication holes are provided on the circular baffle 58 for connecting to the two feed inlets 60 respectively. A sealing gasket 61 for sealing the two feed inlets 60 is semi-embedded on the inner side of the circular baffle 58. The feed driven gear 40 is fixedly installed on the outer end of the rotating mounting shaft 59, and the feed drive gear 39 meshes with the feed driven gear 40. The feed drive motor 38 is driven and controlled by the control cabinet 1. The cooperation between the circular groove 15 and the circular baffle 58 can reduce the amount of material entering the circular groove 15 and causing residue. The rotating circular baffle 58 can switch between the feed communication holes and the sealing gasket 61 to achieve the conduction or closure of the two feed inlets 60. The two conical funnels 37 can easily receive the materials conveyed by the conveying augers 31 of the two horizontal stirring devices.

[0046] like Figure 6-8 As shown, the discharge switch mechanism includes an arc-shaped insert plate 43 and a hand-tightening bolt 46. A discharge window 42 is provided on the side wall of the horizontal tank 35, and the discharge window 42 extends to the outer end face of the discharge side of the horizontal tank 35. One end of the arc-shaped insert plate 43 is inserted into the discharge window 42 to close the discharge window 42, and the other end edge of the arc-shaped insert plate 43 is provided with an installation flange 45. A locking hole is provided on the installation flange 45, and a locking threaded hole is provided on the outer end face of the discharge side of the horizontal tank 35 at the locking hole. The hand-tightening bolt 46 passes through the locking hole and is screwed into the locking threaded hole. A limit slot is provided on the edge of the discharge window 42, and a limit protrusion 44 is provided on the edge of the arc-shaped insert plate 43 that slides into the limit slot. The cooperation between the limit slot and the limit protrusion 44 can enhance the insertion stability of the arc-shaped insert plate 43 and also ensure the sealing effect at the edge.

[0047] The proportioning system for raw materials used in brake pad production disclosed in this invention includes a control cabinet 1 equipped with a controller, a display screen, a keypad, a proportioning drive circuit, a stirring drive circuit, a conveying drive circuit, a rotation drive circuit, a swing drive circuit, a rolling drive circuit, and a feeding drive circuit. The controller is electrically connected to the display screen, the keypad, the vibrator 4, the proportioning drive circuit, the stirring drive circuit, the conveying drive circuit, the rotation drive circuit, the swing drive circuit, the rolling drive circuit, and the feeding drive circuit. The proportioning drive circuit, the stirring drive circuit, the conveying drive circuit, the rotation drive circuit, the swing drive circuit, the rolling drive circuit, and the feeding drive circuit are respectively connected to the proportioning drive circuit. The proportioning drive motor 32, stirring drive motor 8, conveying drive motor 34, rotary drive motor 17, oscillating drive motor 50, rolling drive motor 49, and feeding drive motor 38 are electrically connected; the controller adopts an existing single-chip microcomputer control module; the proportioning drive circuit, stirring drive circuit, conveying drive circuit, rotary drive circuit, oscillating drive circuit, rolling drive circuit, and feeding drive circuit all adopt existing stepper motor drive circuits, and the proportioning drive motor 32, stirring drive motor 8, conveying drive motor 34, rotary drive motor 17, oscillating drive motor 50, rolling drive motor 49, and feeding drive motor 38 all adopt existing stepper motors.

[0048] like Figure 1-9 As shown, the proportioning method of the proportioning system for brake pad production raw materials disclosed in this invention includes the following steps:

[0049] Step 1: Take seven proportioning feeding devices as the first group, and take another eight proportioning feeding devices as the second group. Connect the discharge port of each proportioning feeding device in the first group to the inlet of the first horizontal mixing device, and connect the discharge port of each proportioning feeding device in the second group to the inlet of the second horizontal mixing device.

[0050] Step 2: Cellulose fiber, acrylic fiber, steel fiber, barium sulfate, phenolic resin and carbon black are stored in the seven proportioning feeding devices of the first group, and nitrile rubber powder, antimony sulfide, light calcium carbonate, zinc oxide, flake graphite, artificial graphite and friction powder are stored in the eight proportioning feeding devices of the second group.

[0051] Step 3: Set the feeding ratio data of the seven feeding devices in the first group and the eight feeding devices in the second group on the button panel of the control cabinet 1. The weight ratio of cellulose fiber, acrylic fiber, steel fiber, barium sulfate, phenolic resin and carbon black is 3:5.5:12:20:8:0.5, and the weight ratio of nitrile rubber powder, antimony sulfide, light calcium carbonate, zinc oxide, flake graphite, artificial graphite and friction powder is 3:4:12:2:12:15:3.

[0052] Step 4: By pressing the start button on the button panel of control cabinet 1, the ratio drive motor 32 of the seven ratio feeding devices in the first group and the eight ratio feeding devices in the second group is started for drive control, and the ingredients are delivered to their respective horizontal mixing devices according to the set feeding ratio data.

[0053] Step 5: After the batching and conveying are completed, the controller of the control cabinet 1 drives the stirring drive motors 8 of the two horizontal stirring devices to mix for eight minutes. After the mixing is completed, the controller of the control cabinet 1 first drives the rotary drive motor 17 to connect the material leakage hole 30 with the connecting material hole 14 to start discharging. Then, the controller drives the conveying drive motors 34 of the two horizontal stirring devices to drive the conveying auger 31 to convey the mixed batches to the horizontal mixing device.

[0054] Step 6: The controller of control cabinet 1 drives the feed drive motor 38 of the horizontal mixing device to close the two feed ports 60 using the circular baffle 58. Then, the controller drives the swing drive motor 50 to rotate the horizontal tank 35 from the vertical feeding state to the horizontal stirring state. Then, the controller of control cabinet 1 drives the rolling drive motor 49 of the horizontal mixing device to perform horizontal mixing of the mixed ingredients conveyed by the two horizontal stirring devices. The mixing time is set to eight minutes.

[0055] Step 7: After the horizontal mixing device reaches the mixing time, the controller of the control cabinet 1 drives the swing drive motor 50 to rotate the horizontal tank 35 from the horizontal stirring state to the inverted and tilted feeding state. Then, the worker opens the arc-shaped baffle 43 to discharge the mixed ingredients from the horizontal tank 35 of the horizontal mixing device.

[0056] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A proportioning system for raw materials used in brake pad production, characterized in that, It includes a control cabinet (1), a horizontal mixing device, two horizontal stirring devices, and multiple proportioning feeding devices; each proportioning feeding device is divided into two groups, which are used to store each ingredient of brake pad production raw materials respectively, and accurately transport each ingredient of the two groups of proportioning feeding devices to the two horizontal stirring devices respectively; the two horizontal stirring devices are used to perform first-stage mixing and stirring of each conveyed ingredient, and the ingredients after first-stage mixing and stirring are all conveyed to the horizontal mixing device; the horizontal mixing device is used to perform second-stage mixing and stirring of the conveyed ingredients to obtain the final mixed raw materials; the horizontal mixing device, the two horizontal stirring devices, and each proportioning feeding device are all driven and controlled by the control cabinet (1).

2. The proportioning system for raw materials used in brake pad production according to claim 1, characterized in that, The proportioning and feeding device includes a storage hopper (2), a proportioning conveying auger (5), a proportioning drive motor (32), and a vibrator (4); the storage hopper (2) is provided with a hopper support leg (3) at the bottom and a discharge port (19) at the bottom of the storage hopper (2); the proportioning conveying auger (5) is installed at an angle on the side of the storage hopper (2), and the proportioning inlet of the proportioning conveying auger (5) is connected to the discharge port (19); the proportioning drive motor (32) is installed on the upper end of the proportioning conveying auger (5) and drives the proportioning conveying auger (5) through a sprocket transmission unit; the proportioning discharge port of the proportioning conveying auger (5) is connected to the inlet of the horizontal stirring device through a proportioning conveying pipe (33); the vibrator (4) is installed on the bottom of the storage hopper (2); the proportioning drive motor (32) and the vibrator (4) are driven and controlled by the control cabinet (1).

3. The proportioning system for raw materials used in brake pad production according to claim 1, characterized in that, The horizontal mixing device includes a mixing cylinder (6), a vertical mixing mechanism, a discharge switch mechanism, a conveying drive motor (34), and a conveying auger (31); the bottom of the mixing cylinder (6) is set as a conical bottom (29), and a cylinder support leg (7) is vertically installed on the conical bottom (29); the discharge switch mechanism is set at the bottom opening of the conical bottom (29) for opening and closing control of the bottom opening; the conveying auger (31) is installed obliquely on the side of the mixing cylinder (6), and the conveying auger (31) The feed inlet of the conveying device is connected to the discharge switch mechanism. The discharge port of the conveying auger (31) is used to connect to the feed inlet of the horizontal mixing device. The conveying drive motor (34) is installed on the upper end of the conveying auger (31) and drives the conveying auger (31) through the sprocket transmission unit. The vertical stirring mechanism is installed on the stirring cylinder (6) and is used to stir the raw materials in the stirring cylinder (6). The vertical stirring mechanism, the discharge switch mechanism and the conveying drive motor (34) are all driven and controlled by the control cabinet (1).

4. The proportioning system for raw materials used in brake pad production according to claim 3, characterized in that, The vertical stirring mechanism includes a stirring drive motor (8), a stirring support beam (22), a stirring shaft (24), an upper stirring blade (25), and a lower stirring blade (21). The stirring support beam (22) is longitudinally fixedly installed on the top of the stirring cylinder (6). The stirring drive motor (8) is mounted on the stirring support beam (22) through a motor support, and a stirring drive gear (9) is installed on the output shaft of the stirring drive motor (8). The stirring shaft (24) is rotated vertically installed at the center of the stirring cylinder (6), and the upper end of the stirring shaft (24) passes through the stirring support beam. (22), and a driven gear (12) that meshes with the driving gear (9) is provided on the upper end of the stirring shaft (24); the upper stirring blade (25) and the lower stirring blade (21) are both fixedly installed on the stirring shaft (24), and the upper stirring blade (25) is located in the middle of the stirring cylinder (6), and the lower stirring blade (21) is located in the conical bottom (29); each stirring hole (26) is distributed on the upper stirring blade (25) and the lower stirring blade (21); the stirring drive motor (8) is driven and controlled by the control cabinet (1).

5. The proportioning system for raw materials used in brake pad production according to claim 3, characterized in that, The discharge switch mechanism includes an L-shaped support plate (13), a switch disc (28), a rotary drive motor (17), an arc-shaped drive rack (27), and a rotary drive gear (16); one end of the L-shaped support plate (13) is fixed to the conical bottom (29), and the other end extends horizontally; a fixed shaft (10) is connected between the conical bottom (29) and the horizontal plate of the L-shaped support plate (13); the switch disc (28) is rotatably mounted on the fixed shaft (10), and the upper side of the switch disc (28) is close to the bottom opening of the conical bottom (29); a discharge hole (30) is provided on the switch disc (28) and is connected to the bottom opening of the conical bottom (29); A connecting material hole (14) is provided on the horizontal plate (13) below the bottom opening of the conical bottom (29) for connecting with the conveying inlet of the conveying auger (31); an arc groove (18) is provided on the circumferential edge of the lower side of the switch disk (28), and an arc drive rack (27) is installed in the arc groove (18); a rotary drive motor (17) is installed on the L-shaped support plate (13), and a rotary drive gear (16) is installed on the output shaft end of the rotary drive motor (17), and the rotary drive gear (16) meshes with the arc drive rack (27) to drive the switch disk (28) to rotate; the rotary drive motor (17) is driven and controlled by the control cabinet (1).

6. The proportioning system for raw materials used in brake pad production according to claim 1, characterized in that, The horizontal mixing device includes a horizontal tank (35), a swing support mechanism, a horizontal stirring mechanism, a feed switch mechanism, and a discharge switch mechanism. The horizontal tank (35) is rotated in the middle and mounted on the swing support mechanism, which drives the horizontal tank (35) to rotate. The horizontal stirring mechanism is mounted on the discharge side end face of the horizontal tank (35) and is used to stir the ingredients inside the horizontal tank (35). The feed switch mechanism is mounted on the feed side end face of the horizontal tank (35) and is used to control the opening and closing of the feed in the horizontal tank (35). The discharge switch mechanism is mounted on the discharge side wall of the horizontal tank (35) and is used to control the opening and closing of the discharge in the horizontal tank (35). The swing support mechanism, the horizontal stirring mechanism, and the feed switch mechanism are all driven and controlled by the control cabinet (1).

7. The proportioning system for raw materials used in brake pad production according to claim 6, characterized in that, The oscillating support mechanism includes an oscillating drive motor (50), an oscillating support frame (36), an oscillating drive worm gear (51), and an oscillating drive worm (52); the horizontal stirring mechanism includes a rolling drive motor (49), a rolling stirring shaft (54), a strip stirring plate (56), a rolling drive gear (53), and a rolling driven gear (47); an oscillating support shaft (41) is provided in the middle of the horizontal tank (35), and is oscillatingly mounted on the oscillating support frame (36) via the oscillating support shaft (41); the oscillating drive worm gear (51) is mounted on the oscillating support shaft (41), and the oscillating drive worm (52) is rotatably mounted on the oscillating support frame (36), and the oscillating drive worm gear (51) meshes with the oscillating drive worm (52); the oscillating drive motor (50) is mounted on the oscillating support frame (36) for rotating the oscillating drive worm (52); one end of the rolling stirring shaft (54) is rotatably mounted through the horizontal tank. At the center of the discharge side end face of the body (35), the other end is rotatably installed inside the horizontal tank (35) via an internal support (57), and the tumbling shaft (54) is located on the central axis of the horizontal tank (35); each radial rod (55) is arranged in pairs on the tumbling shaft (54), and each strip stirring plate (56) is installed on the end of each pair of radial rods (55), and the strip stirring plate (56) is parallel to the tumbling shaft (54) and close to the horizontal tank (35). 5) The inner circumference of the horizontal tank (35) is covered by a rolling drive motor (49) installed on the outer end face of the discharge side of the horizontal tank (35). The rolling drive gear (53) is installed on the output shaft of the rolling drive motor (49). The rolling driven gear (47) is installed on the extended end of the rolling agitator (54). The rolling drive gear (53) meshes with the rolling driven gear (47). The oscillating drive motor (50) and the rolling drive motor (49) are both driven and controlled by the control cabinet (1).

8. The proportioning system for raw materials used in brake pad production according to claim 6, characterized in that, The feeding switch mechanism includes a feeding drive motor (38), a feeding drive gear (39), a feeding driven gear (40), a circular baffle (58), a rotary mounting shaft (59), and two conical funnels (37). The feeding drive motor (38) is mounted on the outer end face of the feeding side of the horizontal tank (35), and the feeding drive gear (39) is mounted on the output shaft of the feeding drive motor (38). A circular groove (15) is provided on the inner end face of the feeding side of the horizontal tank (35), and the circular baffle (58) is rotatably mounted in the circular groove (15) via the rotary mounting shaft (59). Two feed inlets (60) are provided on the surface, and the bottoms of two conical funnels (37) are respectively connected to the two feed inlets (60); two feed communication holes are provided on the circular baffle (58) for connecting to the two feed inlets (60) respectively; a sealing gasket (61) for sealing the two feed inlets (60) is semi-embedded on the inner side of the circular baffle (58); the feed driven gear (40) is fixedly installed on the outer end of the rotating mounting shaft (59), and the feed drive gear (39) meshes with the feed driven gear (40); the feed drive motor (38) is driven and controlled by the control cabinet (1).

9. The proportioning system for raw materials used in brake pad production according to claim 6, characterized in that, The discharge switch mechanism includes an arc-shaped insert plate (43) and a hand-tightening bolt (46); a discharge window (42) is provided on the side wall of the horizontal tank (35), and the discharge window (42) extends to the outer end face of the discharge side of the horizontal tank (35); one end of the arc-shaped insert plate (43) is inserted into the discharge window (42) to close the discharge window (42), and the other end edge of the arc-shaped insert plate (43) is provided with an installation flange (45); a locking hole is provided on the installation flange (45), and a locking threaded hole is provided on the outer end face of the discharge side of the horizontal tank (35) at the locking hole; the hand-tightening bolt (46) passes through the locking hole and is threadedly screwed into the locking threaded hole; a limit slot is provided on the edge of the discharge window (42), and a limit protrusion (44) is provided on the edge of the arc-shaped insert plate (43) that is slidably embedded in the limit slot.

10. A proportioning method for a proportioning system for brake pad production raw materials as described in claim 1, characterized in that, Includes the following steps: Step 1: Take seven proportioning feeding devices as the first group, and take another eight proportioning feeding devices as the second group. Connect the discharge port of each proportioning feeding device in the first group to the inlet of the first horizontal mixing device, and connect the discharge port of each proportioning feeding device in the second group to the inlet of the second horizontal mixing device. Step 2: Cellulose fiber, acrylic fiber, steel fiber, barium sulfate, phenolic resin and carbon black are stored in the seven proportioning feeding devices of the first group, and nitrile rubber powder, antimony sulfide, light calcium carbonate, zinc oxide, flake graphite, artificial graphite and friction powder are stored in the eight proportioning feeding devices of the second group. Step 3: Set the feeding ratio data of the seven feeding devices of the first group and the eight feeding devices of the second group on the control cabinet (1). The weight ratio of cellulose fiber, acrylonitrile, steel fiber, barium sulfate, phenolic resin and carbon black is 3:5.5:12:20:8:0.

5. The weight ratio of nitrile rubber powder, antimony sulfide, light calcium carbonate, zinc oxide, flake graphite, artificial graphite and friction powder is 3:4:12:2:12:15:

3. Step 4: Drive and control the seven proportioning feeding devices of the first group and the eight proportioning feeding devices of the second group through the control cabinet (1) to deliver the ingredients to their respective horizontal mixing devices according to the set feeding proportion data. Step 5: After the ingredients are conveyed, the control cabinet (1) drives and controls the two horizontal stirring devices so that both horizontal stirring devices mix for eight minutes. After the mixing is completed, the two horizontal stirring devices convey the mixed ingredients to the horizontal mixing device. Step 6: The horizontal mixing device is driven and controlled by the control cabinet (1). The horizontal mixing device performs horizontal mixing of the mixed ingredients conveyed by the two horizontal stirring devices. The mixing time is set to eight minutes. Step 7: After the horizontal mixing device reaches the required mixing time, discharge the mixed ingredients from the horizontal mixing device.

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