CN107000354B - Brake(-holder) block friction material molding machine - Google Patents

Abstract

The present invention relates to suitable for the brake(-holder) block of the brake of the mobile tool such as vehicle, for the brake(-holder) block friction material molding machine in backboard compression forming friction material powder, following brake(-holder) block friction material molding machine is provided：Can friction material powder automatically and continuously be filled in mold cavity, to not only make the validity of production maximize, but also fraction defective be made to minimize, and production cost can be reduced.

Description

Brake Pad Friction Material Forming Device

technical field

The present invention relates to a braking pad friction material molding device for stamping and forming friction material powder on a back plate in a brake pad suitable for a vehicle and other mobile tools.

Background technique

Generally, the brake pads P applied to the brakes of mobile tools such as vehicles are devices that prevent the rotation of the brake discs of cars such as prime movers and large vehicles by frictional force, thereby braking the running. The friction material a and the back plate b are formed of a steel plate material supporting the friction material a.

Generally, as a process of manufacturing the brake pad P, a series of processes are performed, that is, the upper surface of the back plate b of the above-mentioned steel plate material is compression-molded and the friction material powder is attached to manufacture the brake pad P at one time, and thereafter, the brake pad P is manufactured by grinding. The device performs the first plane rough grinding process on the rough surface of the friction material a formed in the form of a block, and performs plane finish grinding process on the surface rough ground in the above-mentioned manner to make it a product with precise specifications , after that, the both ends of the friction material block are subjected to inclined surface processing, and the friction material a is divided into two branches, and then the friction material a is scorched (Scorching). The painting work of the back panel is completed.

As described above, generally, the brake pad P is composed of the back plate b and the friction material a attached thereto. After filling the powder of the friction material a into the cavity of the mold, it is arranged on the upper part of the back plate b. Finally, the first brake pad P is completed by press molding. At this time, in order to form the friction material powder, the friction material The powder is precisely metered and fed so that it is ready for molding in the mold.

Among the above processes, the process of accurately metering and supplying the friction material powder consumes considerable labor, time and cost. In the past, in the production line of brake pads, workers could only use precise weighing scales to measure friction material powder equivalent to one friction material one by one to fill in the mold cavity.

The above-mentioned operation not only reduces the effectiveness of the operation, but also in the case that the friction material powder cannot be accurately filled due to the operator's mistake, defective products may be generated, and there is a problem that the operator completes a process However, labor costs are generated, and there are problems such as an increase in production costs.

Contents of the invention

technical problem

The present invention is proposed to solve the above-mentioned problems. The purpose of the present invention is to provide the following brake pad friction material molding device: it can automatically and continuously fill the friction material powder into the mold cavity, so that not only the effectiveness of production Maximize, and minimize the defect rate, and save production costs.

solution to the problem

The present invention provides a brake pad friction material molding device that can automatically and continuously fill the friction material powder as a powder material into the cavity of a mold for extrusion molding, thereby not only greatly increasing the effectiveness of production Maximization, and minimize the defect rate, and save production costs.

The effect of the invention

If the brake pad friction material molding device of the present invention is provided, the process of filling the cavity of the mold with the friction material powder can be performed quickly and accurately, so that it can be molded after accurately filling the cavity with a certain amount of friction material powder. , so that while minimizing the defect rate, the cost saving effect can be excellent, and the entire operation process can be carried out quickly, so that the production time can be shortened, and finally the effect of easy mass production can be expected.

Description of drawings

Fig. 1 is an overall combined front view of the brake pad friction material forming device of the present invention.

Fig. 2 is a front view of the pressure device part of the present invention.

Fig. 3 is a side view of the pressure device portion of the present invention.

Fig. 4 is a front view showing a friction material supply part and a pressurizing device part of the present invention.

Fig. 5 is a plan view showing a part of the friction material supply unit of the present invention.

Fig. 6 is a front view of the measuring device unit of the present invention.

7 is a front view showing a state before friction material powder is filled in a mold in a state where a press unit, a friction material supply unit, and a press unit unit are combined according to the present invention.

8 is a front view showing a state before the friction material supply part moves downward after the upper end press of the press device part of the present invention retreats.

FIG. 9 is a front view showing a state in which a friction material is filled in a mold in a state where a friction material supply unit is located in a lower end press of a press unit according to the present invention.

10 to 15 are cross-sectional views showing the working state of the process of filling the friction material powder into the cavity of the mold according to the present invention.

Figure 16 is a brake pad friction material produced by the present invention.

Detailed ways

The present invention relates to a brake pad friction material molding device, which is used to crimp and form friction material powder used for brake pads on a back plate, including: a pressure device part 100, which is provided with a lower end press 110 and an upper end press 120. The upper end of the lower end press 110 is provided with a mold 111. The above mold 111 is composed of a lifting block 113 that can move the bottom surface of the cavity 112 for accommodating friction material powder in an up and down direction. The upper end press 120 is installed on the lower end press 110. The upper side of the upper press 120 can be moved forward and backward by the cylinder C; the friction material supply part 200 is used to evenly fill the cavity 112 of the mold 111 provided at the upper end of the lower press 110 of the pressing device part 100 friction material powder; a pressurizing device part 300 for pressing the friction material powder at one time after the friction material powder is filled into the cavity 112 of the mold 111 through the above-mentioned friction material supply part 200; and a measuring device part 400 for feeding the friction material powder to The above-mentioned friction material supply part 200 supplies a certain amount of friction material powder. The above-mentioned brake pad friction material molding device is characterized in that the above-mentioned friction material supply part 200 includes: a lifting frame 210, which is inserted at a position corresponding to the cavity 112 of the mold 111. There is a cutting hole 211, which is lifted up and down by means of a cylinder C, and a rack 212 and a moving track 213 are arranged on the upper surface; a friction material filling device 220 includes a moving frame 221 and a moving hopper 224, and the moving frame 221 is connected with the above-mentioned The moving motor 222 of the pinion 223 linked by the rack 212 moves to the left and right along the moving track 213 of the lifting frame 210. The lower side of the moving hopper 224 is opened, and a decorative material 225 is provided at the lower end. 224 is formed on the upper surface of the above-mentioned moving frame 221; and a storage hopper 230 is provided with an opening and closing plate 231 rotated by the cylinder C inside, so that after storing the friction material powder, it is supplied to the moving hopper 224 of the above-mentioned friction material filling device 220.

The metering unit 400 includes: a first friction material powder box 410 and a second friction material powder box 420, in which friction material powder is stored, discharge ports 413, 423 are formed on the lower side, and screw motors 411, 421 are used to work. Screws 412, 422 are provided on the lower side of the above-mentioned discharge ports 413, 423 to discharge a predetermined amount through the above-mentioned discharge ports 413, 423 after receiving the friction material powder; 410. The friction material powder discharged from the discharge ports 413 and 423 of the second friction material powder box 420 flows in, and an opening and closing plate 431 operated by a cylinder C is provided inside, and a switch for adjusting the weight of the above-mentioned opening and closing plate 431 is provided. The detected weight sensor 432; the first carrier 440 is provided with an opening and closing cup 441 for making the friction material powder discharged through the above-mentioned quantitative supply hopper 430 flow into it on the inside, and is provided with an opening and closing cup 441 that can be moved through the above-mentioned opening and closing cup 441 on one side. A cylinder C that operates to discharge the friction material powder to the lower side; and a second carrier 450 that is provided inside with an open-close cup 451 for inflowing the friction material powder discharged through the above-mentioned first carrier 440, and that is provided on one side. There is an air cylinder C capable of discharging the friction material powder downward by operating the opening and closing cup 451 .

As shown in the accompanying drawings, the present invention relates to the following brake pad friction material molding device: used to process the brake pad P for the first time by crimping and molding the friction material a on the pedal b, the brake pad friction The material molding device includes a press unit 100 , a friction material supply unit 200 , a press unit 300 , and a measuring unit 400 .

Wherein, in the state where the friction material a of the above-mentioned brake pad P is in the form of powder, it is crimped and formed on the pedal b by means of strong pressure and then completed by additional grinding, so as to be used in the braking device of the vehicle. It relates to a device that is molded at once before grinding the friction material a as described above.

First, FIG. 1 is an overall combined front view of the present invention. As shown in FIG. 1, the pressure device part 100 is formed on both sides, and the pressure device part 100 on both sides is respectively provided with a friction material supply part 200 and a pressure device part 300. , at the uppermost end of the present invention, a metering device unit 400 is provided for alternately supplying friction material powder to each of the friction material supply units 200 described above. Hereinafter, each of the above devices will be described in detail with reference to the accompanying drawings.

As shown in Figures 2 to 3, the above-mentioned press device part 100 is a common press form including a lower end press 110 and an upper end press 120, and a mold 111 is arranged on the upper end of the above-mentioned lower end press 110, and the cavity of the above-mentioned mold 111 112 is characterized in that the bottom surface is constituted by a liftable block 113, and the above-mentioned upper end press 120 is characterized in that it is installed so as to be movable in the forward and backward direction by the air cylinder C provided at the rear end.

As shown in FIGS. 4 to 5 , a friction material supply part 200 for filling the cavity 112 of the mold 111 of the press device part 100 with friction material powder is provided on the upper side of the press device part 100 , and the friction material supply part 200 It is characterized in that a friction material filling device 220 is provided on the upper surface of the elevating frame 210 , and a storage hopper 230 is provided above the friction material filling device 220 .

The above-mentioned lifting frame 210 is characterized in that it can be lifted up and down by means of the cylinder C combined with both sides, and a cut hole 211 with the same shape as the cavity 112 is pierced at a position corresponding to the cavity 112 of the mold 111. A rack 212 and a moving rail 213 are provided on the upper surface.

The friction material filling device 220 provided on the upper side of the lifting frame 210 includes: a moving frame 221, driven by a moving motor 222 having a pinion 223 interlocked with the rack 212 of the lifting frame 210 along the lifting frame 210. The moving rail 213 moves to the left and right; and the moving hopper 224 is arranged on the upper surface of the moving frame 221 .

The above-mentioned moving hopper 224 accommodates friction material powder, and the lower side is in an open state, and a decorative material 225 is provided on the bottom surface of the lower end. The state of sticking to the upper surface of the elevating frame 210 prevents the friction material powder from detaching to the outside.

At this time, when the moving hopper 224 moves in the left-right direction along the upper surface of the elevating frame 210 and passes through the cutout hole 211 perforated in the elevating frame 210 , the friction material powder contained in the moving hopper 224 is discharged downward through the cutout hole 211 . , and fill in the cavity 112 of the mold 111. In this case, when the moving hopper 224 moves along the left and right direction and repeatedly passes through the cavity 112, the lifting block 113 forming the bottom surface of the cavity 112 is stored according to the The program descends step by step and gradually forms a space in the cavity 112. Through this action, the friction material powder can be gradually filled inside the cavity 112, so that the same density as the friction material can be formed during press molding. .

On the other hand, the storage hopper 230 for supplying the friction material powder to the above-mentioned moving hopper 224 is characterized in that it is provided on the upper side of the moving hopper 224, and an opening and closing plate 231 operated by the air cylinder C is formed on the inner side. While the friction material powder is stored inside the hopper 230 , when the friction material powder in the moving hopper 224 is used up, a certain amount of friction material powder is supplied to the moving hopper 224 by opening the opening and closing plate 231 .

As described above, the pressing device part 300 for uniformly pressing the friction material powder after the friction material powder is first filled in the cavity 112 of the mold 111 by the friction material supply part 200 is provided, and the above-mentioned pressing device part 300 is characterized in that That is, a cylinder C is provided to be raised and lowered in combination with the lifting frame 210 of the friction material supply part 200, a support frame 310 is formed on the upper end of the cylinder C, and a pressure plate is provided on the other end of the support frame 310. 311.

Here, the pressure plate 311 pressurizes the friction material powder filled in the cavity 112 of the mold 111 with a predetermined pressure, has the same shape as the cavity 112, and presses the cavity 112 uniformly as a whole. As described above, In the process of pressing the friction material powder, the boundary line between the first and second friction material powder is uniformly filled inside the cavity 112 so that the failure of the brake pad can be minimized.

On the other hand, the metering device part 400 for quantitatively supplying the friction material powder to the friction material supply part 200 is provided at the upper end of the friction material supply part 200, and the metering device part 400 is characterized in that the first friction material powder box 410 and the lower side of the second friction material powder box 420 are provided with a quantitative supply hopper 430, and a first carrier 440 is respectively provided at the lower side of the quantitative supply hopper 430, and a direction to A second carrier 450 that moves left and right.

First friction material powder and second friction material powder are respectively stored in the first friction material powder box 410 and the second friction material powder box 420, and discharge ports 413 and 423 are formed on one side of the lower end. Screws 412 and 422 that operate at 421 are provided below the discharge ports 413 and 423 so that a predetermined amount of friction material powder can be discharged after receiving the friction material powder through the discharge ports 413 and 423 .

The quantitative supply hopper 430 is used to flow the friction material powder discharged through the discharge ports 413 and 423 of the first friction material powder tank 410 and the second friction material powder tank 420, and the quantitative supply hopper 430 is characterized in that there are The opening and closing plate 431 that works by means of the cylinder C is provided with a weight sensor 432 for detecting the weight of the above-mentioned opening and closing plate 431. The weight of the friction material powder is detected by the above-mentioned weight sensor 432. If a certain amount of friction material powder If it flows into the quantitative supply hopper 430, the screw motors 411, 421 of the first friction material powder box 410 and the second friction material powder box 420 are controlled to stop the rotation of the screws 412, 422, thereby blocking further discharge of the friction material powder. Finally, after receiving the fixed amount of friction material powder, the fixed amount of friction material powder is supplied to the friction material supply unit 200 .

Inside the first carrier 440 for inflowing the friction material powder discharged from the quantitative supply hopper 430 is provided an open-close cup 441 that is rotated by the air cylinder C to accommodate the friction material flowing in from the quantitative supply hopper 430 . The powder is then discharged to the lower side, wherein the above-mentioned first carrier 440 is provided with the same number as the number of cavities 112 of the mold 111, and one quantitative supply hopper 430 is provided. Finally, in order to receive the friction material powder from the quantitative supply hopper 430 , the first carrier 440 can receive the friction material powder in a manner that moves forward and backward.

On the other hand, the second carrier 450 for receiving friction material powder from the first carrier 440 is characterized in that an opening and closing cup 441 is provided inside, and a cylinder C is provided on one side, and the cylinder C is used to The opening and closing cup 441 operates to discharge the friction material powder downward, and the second carrier 450 is provided so as to be movable in the left and right directions, so as to receive the friction material powder from the first carrier 440 respectively provided on both sides. The second carrier 450 serves to supply the friction material powder to the storage hopper 230 of the friction material supply unit 200 after receiving the friction material powder while moving in the left and right directions.

Hereinafter, the working relationship of the present invention will be described as follows.

First, when the screws 412 and 422 are rotated by driving the screw motors 411 and 421 of the first friction material powder tank 410 and the second friction material powder tank 420 of the measuring device unit 400 , the powder flowing in through the discharge ports 413 and 423 The first and second friction material powders flow into the quantitative supply hopper 430, and if the quantitative first and second friction material powders flow in, the weight is detected by the weight sensor 432, and the drive of the screw motors 411 and 421 is controlled to block the flow. The first and second friction material powders are discharged. After the first and second friction material powders flowing into the quantitative supply hopper 430 are discharged to the first carrier 440, the second carrier 450 passes to the first carrier receiving the first friction material powder. The carrier 440 moves to receive the first friction material powder, and then supplies it again to the storage hopper 230 of the friction material supply part 200, and the storage hopper 230 supplies the first friction material powder to the moving hopper 224 of the friction material filling device 220 again, finally, In the state of supplying the first friction material powder to the moving hopper 224, at this time, the second carrier 450 receives the second friction material powder by moving to the first carrier 440 that receives the second friction material powder, and then supplies the friction material powder The storage hopper 230 of the unit 200 is supplied.

Through the process described above, the moving hopper 224 is in the state of having received the first friction material powder, and the storage hopper 230 is in the state of having received the second friction material powder, which is to fill the first and second friction material powders into the cavity 112 of the mold 111. The state before the second friction material powder, the attached Fig. 7 shows the state as described above.

As described above, the process of filling the cavity 112 after supplying the first and second friction material powders to the friction material supply unit 200 is as follows.

First, as shown in FIG. 8 , the upper press 120 of the press unit 100 moves backward, so that the elevating frame 210 of the friction material supply unit 200 descends to the upper side of the lower press 110 as the above-mentioned hollow space. The mold 111 on the upper side of the lower end press 110 is in contact with the lifting frame 210 of the friction material supply part 200, thereby being in the same state as that shown in FIG. 9 .

As mentioned above, in the state where the upper end of the mold 111 is in contact with the elevating frame 210, the same work as that shown in FIGS. In the state where the cutting hole 211 of the lifting frame 210 is located on the upper side of the cavity 112 of the mold 111, if the moving hopper 224 is moved to the position of the cutting hole 211 in a moving manner, then the The first friction material powder is discharged downward through the cutout hole 211 and filled in the cavity 112 , and the moving hopper 224 continues to move away from the cutout hole 211 and moves to the opposite side.

As described above, when the moving hopper 224 moves and fills the cavity 112 with the first friction material powder, the lifting block 113 constituting the bottom surface of the cavity 112 moves downward, thereby forming a surplus space in the space of the cavity 112 , the moving hopper 224 moves to the position of the cut hole 211 by moving again, so that the first friction material powder is filled in the cavity 112 again. The process of gradually increasing the space of the cavity 112 in a gradually descending manner is repeated, so that the first friction material powder stored in the moving hopper 224 is gradually fully filled in the cavity 112 .

As described above, when all the first friction material powder stored in the moving hopper 224 is filled into the cavity 112, the cylinder C of the pressurizing device part 300 is activated to lower the supporting frame 310 and move the pressing plate 311 toward the cavity 112. descending to uniformly press the first friction material powder in a pressurized manner.

As described above, while the pressurizing device unit 300 is operating, the second friction material powder stored in the storage hopper 230 is thrown into the moving hopper 224, and when the pressurizing device unit 300 returns to its original position after pressurization, it moves. The hopper 224 moves to the left and right, and the lifting block 113 of the cavity 112 repeats the process of gradually descending, so that the second friction material powder is filled in the cavity 112. If the pressurizing device part 300 is operated again, the cavity 112 When the second friction material powder is pressurized, the work of filling the cavity 112 with the first and second friction material powders is completed.

As mentioned above, if the first and second friction material powders are filled in the cavity 112, the friction material supply part 200 will rise, and the upper side of the lower end press 110 will leave a hollow space. The process of inserting the back plate b of the sheet P into the cavity 112 .

As mentioned above, if the first and second friction material powders are filled in the cavity 112 and the back plate b is inserted, the upper end press 120 is positioned at the upper end of the lower end press 110 by advancing, and then, through the operation of the press, the back plate b b and the first and second friction material powders are pressed against each other by strong pressure, thereby realizing the molding of the friction material of the brake pad.

On the other hand, during the process of filling the cavity 112 with the first and second friction material powders, the first and second friction material powders in the metering unit 400 are in a state of being supplied to the first carrier 440 through the quantitative supply hopper 430 After the friction material supply part 200 fills the cavity 112 with the first and second friction material powders, if it lifts up and down, the storage hopper 230 and the moving hopper 224 are immediately in a state where the first and second friction material powders can be filled. The press unit 100 performs the stamping operation. After the stamping operation is completed, if the upper end press 120 retreats backward after the brake pad P is separated by the worker, the friction material supply unit 200 immediately performs the next step. The continuous process, when producing the brake pad P, can work more quickly and accurately, thereby not only enabling mass production but also minimizing the defective rate.

Moreover, in the present invention, as shown in FIG. 1 , the metering device part 400 is arranged at the uppermost end, and the friction material supply part 200 and the pressure device part 100 are respectively arranged on both sides of its lower side, thereby making it more suitable for Mass production.

As mentioned above, although the present invention has been described through the limited embodiments and accompanying drawings, the present invention is not limited to the above-mentioned embodiments, and those of ordinary skill in the technical field of the present invention can make various modifications from the contents described above and deformation.

Therefore, the technical idea of the present invention should be grasped by the protection scope of the claimed invention described below, and it is obvious that the variants equal to or equivalent to the claimed scope of the above invention all belong to the category of the technical idea of the present invention.

Industrial availability

The invention is used to improve the production efficiency, reduce the defect rate and production cost of the brake pad friction material suitable for the brakes of mobile tools such as vehicles, and has very high industrial applicability.

Claims (2)

1. a kind of brake(-holder) block friction material molding machine, for being pressed the friction material powder for being used in brake(-holder) block in backboard It is connected into type, including：

Pressure apparatus portion (100) is provided with lower end forcing press (110) and upper end forcing press (120), in above-mentioned lower end forcing press (110) upper end is provided with mold (111), and above-mentioned mold (111) accommodates the cavity of friction material powder by that can be used in (112) elevator (113) that bottom surface is vertically moved is constituted, and above-mentioned upper end forcing press (120) is set to above-mentioned lower end The upside of forcing press (110), above-mentioned upper end forcing press (120) can forward and backward move by cylinder (C)；

Friction material supply unit (200), for lower end forcing press (110) upper end for being set to above-mentioned pressure apparatus portion (100) The cavity (112) of mold (111) fill uniformly with friction material powder；

Pressue device portion (300) is being rubbed by above-mentioned friction material supply unit (200) to the filling of the cavity (112) of mold (111) After wiping material powder, for disposably pressing friction material powder；And

Metering device portion (400), for above-mentioned friction material supply unit (200) for the friction material powder of specified rate,

Above-mentioned brake(-holder) block friction material molding machine is characterized in that above-mentioned friction material supply unit (200) includes：

Lifting frame (210) is installed with cut-out hole (211), by gas in position corresponding with cavity (112) of mold (111) Cylinder (C) vertically lifts, and upper side is provided with rack (212) and moving track (213)；

Friction material filling device (220), including mobility framework (221) and mobile hopper (224), above-mentioned mobility framework (221) By the mobile motor (222) with the pinion gear (223) interlocked with above-mentioned rack (212) along above-mentioned lifting frame (210) Moving track (213) move in the lateral direction, be opened on the downside of above-mentioned mobile hopper (224), and lower end is provided with dress Exterior material (225), above-mentioned mobile hopper (224) are formed in the upper side of above-mentioned mobility framework (221)；And

Storage bin hopper (230) is provided with the opening-closing plate (231) rotated by cylinder (C) in inside, in storage friction material feed powder It is supplied to the mobile hopper (224) of above-mentioned friction material filling device (220) after end.

2. brake(-holder) block friction material molding machine according to claim 1, which is characterized in that above-mentioned metering device portion (400) include：

First friction material powder case (410), the second friction material powder case (420), friction material powder is stored in inside, It is formed with outlet (413,423) in downside, is arranged by the screw rod (412,422) that screw motor (411,421) works Downside in above-mentioned outlet (413,423), to be arranged by above-mentioned outlet (413,423) after receiving friction material powder Go out specified amount；

Weight feed hopper (430), for making through above-mentioned first friction material powder case (410), the second friction material powder The friction material powder that the outlet (413,423) of case (420) is discharged flows into, and is provided in inside and is carried out by cylinder (C) The opening-closing plate (431) of work is provided with the weight sensor (432) being detected for the weight to above-mentioned opening-closing plate (431)；

First carrier (440) is provided with the friction material for making to be discharged by above-mentioned weight feed hopper (430) in inside The opening and closing cup (441) that powder flows into, being provided in side can be by making above-mentioned opening and closing cup (441) be operable to make friction material The cylinder (C) that feed powder end is discharged to downside；And

Second carrier (450) is provided with the friction material feed powder for making to be discharged by above-mentioned first carrier (440) in inside The opening and closing cup (451) that the later and decadent stage of a school of thought enters, being provided in side can be by making above-mentioned opening and closing cup (451) be operable to make friction material The cylinder (C) that powder is discharged to downside.