Drum brake pad barrel molding material ejection device and method

Abstract

The present application relates to the technical field of brake pad production, and particularly relates to a drum brake pad cylinder die pressing material discharging device and method, which presses down twice, first presses the partition plate down on the partition plate drag strip, takes out the partition plate, then presses the brake pad down on the partition plate drag strip, and then takes out the brake pad, so that the partition plate and the brake pad are separated at the pressing die, the partition plate drag strip exits the material discharging channel, the partition plate and the brake pad are clamped respectively, the equipment structure is optimized, and the moving track of the mechanical hand is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of brake pad production, in particular to a drum brake pad cylinder mold pressing and material ejection device and method. BACKGROUND

[0002] The brake pad is a key safety part of the automobile brake system, and the drum brake pad has a roughly tile-shaped shape with an arc. At present, the production method of the drum brake pad is to pour the powder-shaped raw material into the hot press to apply pressure and temperature, so as to be hot-pressed and formed by the pressing mold. There are multiple brake pads in the pressing mold, and there are partitions between adjacent brake pads. The partitions below and above the brake pads cooperate with the pressing mold of the hot press to form a mold cavity. Each time the pressing is performed, one partition and brake pad are taken out from below, and the taken-out partition is put into the cycle utilization from above the pressing mold.

[0003] In the prior art, the partition and the brake pad are pressed out at the same time and fall into the material falling groove below, and then the material falling groove together with the partition and the brake pad are translated out of the pressing mold, and the partition and the brake pad are clamped and removed. For example, the Chinese invention patent application 201911188573.0 drum brake pad hot pressing mold partition automatic pushing and filling device, and the Chinese invention patent 202110616038.1 drum brake pad mold pressing automatic system applied by our company.

[0004] The above-mentioned technology has defects: the partition and the brake pad are not separated before being clamped, but are pulled out at the same time with the material falling groove, so it is difficult to clamp the partition and the brake pad, some schemes clamp the partition and the brake pad at the same time, and then separate them by using other devices, which leads to complex structure, large weight of clamping, and cannot directly move the partition to the pressing mold, which greatly increases the moving path; some schemes use a complex clamping device to clamp the brake pad and the partition respectively, which leads to complex structure and reduces reliability. SUMMARY

[0005] The present application aims at the deficiencies of the prior art, and provides a drum brake pad cylinder mold pressing and material ejection device and method, which separates the partition and the brake pad by the height of the material ejection channel, and ejects the partition and the brake pad from the pressing mold respectively, so as to facilitate material ejection.

[0006] The technical scheme adopted by the present application to solve the technical problems is: a drum brake pad cylinder mold pressing and material ejection device, which comprises a material ejection channel arranged at the bottom of the pressing mold in the horizontal direction, the material ejection channel is provided with a partition drag strip for ejecting the partition and the brake pad from the pressing mold, a material ejection rod for driving the partition drag strip to slide, the partition drag strip is provided with a material ejection seat, and the side surface of the material ejection seat is provided with a limiting block for abutting against the end surface of the partition or the brake pad to hook it out of the pressing mold.

[0007] Preferably, the height of the ejection channel is greater than the sum of the heights of the ejection seat and the partition, greater than the sum of the heights of the ejection seat and the brake pad, and less than the sum of the heights of the ejection seat, the partition, and the brake pad. When pressing the brake pad, the ejection seat is located below the partition inside the pressing mold.

[0008] Preferably, the drum brake pad cylinder molding ejection device of the present invention further includes a robotic arm for gripping the partition or brake pad, a robotic arm for moving the robotic arm, the robotic arm including a clamping seat connected to the robotic arm, the clamping seat being provided with two clamps for clamping the partition or brake pad from both sides, and a first cylinder for driving the clamps.

[0009] Preferably, the clamping seat is further provided with a front claw and a rear claw for clamping the partition or brake pad from both ends, a second cylinder for driving the front claw to swing, and a third cylinder for driving the rear claw to swing, wherein the front claw and the rear claw are hinged to the clamping seat.

[0010] Preferably, the bottom of the ejector seat is provided with a groove for avoiding the ends of the front and rear claws, and the limiting blocks are symmetrically arranged on both sides of the groove.

[0011] Preferably, the partition strip is provided with two ejector seats, the positions of which match the positions of the mold cavity of the pressing mold.

[0012] Preferably, the partition strip is provided with two ejector seats for the partition and two ejector seats for the brake pad. When pressing the brake pad, the ejector seats are located below the partition inside the pressing mold.

[0013] Preferably, a guide plate is provided below the partition strip for guiding, and the guide plate is located outside the pressing mold.

[0014] Preferably, the partition slide is provided with a support seat, and the support seat and the ejector seat are arranged along the sliding direction of the partition slide. The upper surface of the support seat is an arc shape that matches the bottom of the partition. The height of the support seat is greater than the height of the ejector seat. When pressing the brake pad, the support seat is located below the partition in the pressing mold.

[0015] The present invention also provides a method for ejecting material from a drum brake pad cylinder mold, which includes the following steps:

[0016] 1) Pressing out the partition: The partition slide moves along the unloading channel to the bottom of the pressing die, and the pressing block of the pressing die moves down, placing the partition on the partition slide;

[0017] 2) Separate the partition and brake pads, and remove the partition: The partition strip exits along the unloading channel, and the partition exits under the drive of the limit block. The brake pads are separated from the partition and remain in the pressing mold.

[0018] 3) Remove the partition: The robotic arm moves the partition from the partition strip to above the pressing mold for the next round of pressing;

[0019] 4) Press in the partition and press out the brake pad: The partition slide moves along the unloading channel to the bottom of the pressing mold. The pressing block of the pressing mold moves down to press the partition placed above the pressing mold into the pressing mold, and drives the brake pad to move down and fall on the partition slide.

[0020] 5) Brake pad ejection: The partition strip ejects along the ejection channel, and the brake pad ejects along with it under the drive of the limit block;

[0021] 6) Remove brake pads: The robotic arm moves the brake pads from the partition strip to the conveyor belt.

[0022] In step 1), first move the support seat of the partition strip to the bottom of the partition to support the partition and press the brake pad, and then move the ejector seat of the partition strip to the bottom of the partition and let the partition fall on the ejector seat.

[0023] The beneficial effects of the present invention are as follows: A drum brake pad cylinder die pressing and unloading device and method, which presses downwards in two stages. First, the partition is pressed downwards onto the partition drag bar. After the partition is removed, the brake pad is pressed downwards onto the partition drag bar, thereby removing them separately. This device and method allows the partition and brake pad to be separated at the pressing die. After the partition drag bar exits the unloading channel, it is convenient to clamp the partition and brake pad separately, which optimizes the equipment structure and reduces the movement trajectory of the robot arm. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the drum brake pad cylinder mold pressing and unloading device of the present invention.

[0025] Figure 2 This is a schematic diagram of the partition strip and robotic arm of the present invention.

[0026] Figure 3 This is a schematic diagram of the structure of the partition strip of the present invention.

[0027] Figure 4 This is a schematic diagram of the robotic arm of the present invention.

[0028] Figure 5 This is a schematic diagram of the rear claw and clamping seat of the present invention.

[0029] Figure 6 This is a schematic diagram of the structure of the partition drag bar, clamp, front claw, and rear claw of the present invention.

[0030] Figure 7 yes Figure 6 A structural diagram from another direction.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1 - Unloading channel 2 - Partition rail

[0033] 21 - Material ejector seat 22 - Limit block

[0034] 23—Support Base 3—Mechanical Arm

[0035] 31 - Clamping seat 32 - Clamping clamp

[0036] 33 - First cylinder; 34 - Front claw

[0037] 35 – Rear claw; 36 – Second cylinder

[0038] 37 – Third Cylinder; 4 – Robotic Arm

[0039] 5 - Guide plate; 6 - Pressing mold. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0041] like Figures 1-7 As shown, the drum brake pad cylinder mold pressing ejection device of this embodiment includes an ejection channel 1 disposed at the bottom of the pressing mold 6, and the ejection channel 1 is arranged in a horizontal direction. In this embodiment, the pressing mold 6 is provided with four pressing cavities that work simultaneously. Correspondingly, two ejection channels and two partition ejection strips 2 are required, and each partition ejection strip 2 is provided with two ejection seats 21.

[0042] Each ejection channel 1 is equipped with a partition slide 2 and an ejection rod (not shown in the figure) for driving the partition slide 2 to slide. The partition slide 2 has two ejection seats 21 corresponding to the pressing cavity. The sides of each ejection seat 21 have limiting blocks 22 for abutting against the end face of the partition or brake pad and pulling it out of the pressing mold. The height of the ejection channel 1 is greater than the sum of the heights of the ejection seats 21 and the partition, greater than the sum of the heights of the ejection seats 21 and the brake pad, and less than the sum of the heights of the ejection seats 21, the partition, and the brake pad. Each time a brake pad is pressed, the ejection seat 21 is located below the partition inside the pressing mold. This invention employs a two-stage unloading process. First, a downward press is applied to place the partition plate onto the unloading seat 21. The push rod drives the partition plate drag bar 2 outward, simultaneously moving the partition plate outside the pressing mold 6. Due to the height limitation of the unloading channel 1, the brake pad cannot fall and leave. Then, the robotic arm 3 is used to clamp the partition plate and remove it from the unloading seat 21. It can be sent to the top of the pressing mold for reuse, or it can be placed in another location for later use. Then, the partition plate drag bar 2 enters the pressing mold and is pressed down again to place the brake pad onto the unloading seat 21. Similar to the partition plate, the brake pad is removed from the pressing mold 6 and leaves the unloading seat 21.

[0043] Furthermore, the present invention also includes a robotic arm 3 for gripping a partition or brake pad, and a robotic arm 4 for moving the robotic arm 3. The robotic arm 3 includes a clamping seat 31, which is fixedly connected to the robotic arm 4. The clamping seat 31 is provided with two clamps 32 for clamping the partition or brake pad from both sides, and a first cylinder 33 for driving the clamps 32. The clamps 32 clamp the partition or brake pad from both sides. The first cylinder 33 can drive the clamps 32 on both sides to clamp or release. In the prior art, since the partition and brake pad are both in this position, it is difficult to clamp the brake pad from the side to separate it from the partition.

[0044] Furthermore, in order to better clamp the partition or brake pad, this embodiment adopts a four-sided clamping method. That is, in addition to the two clamps 32, the clamping seat 31 is also provided with a front claw 34, a rear claw 35 for clamping the partition or brake pad from both ends, a second cylinder 36 for driving the front claw 34 to swing, and a third cylinder 37 for driving the rear claw 35 to swing. The front claw 34 and the rear claw 35 are hinged to the clamping seat 31.

[0045] Furthermore, the bottom of the ejector seat 21 is provided with a groove for avoiding the ends of the front claw 34 and the rear claw 35, and the limiting block 22 is symmetrically arranged on both sides of the groove.

[0046] Furthermore, such as Figure 3 As shown, the partition rod 2 is provided with two ejector seats 21, the positions of which match the positions of the mold cavities of the pressing mold. In this embodiment, the partition and the brake pad share one ejector seat 21. As another embodiment, one ejector seat 21 can be used separately, that is, the partition rod 2 is provided with two ejector seats 21 for the partition and two ejector seats 21 for the brake pad. When pressing the brake pad, the ejector seat 21 is located below the partition inside the pressing mold.

[0047] Furthermore, a guide plate 5 is provided below the partition strip 2 for guiding. The guide plate 5 is located outside the pressing mold and can prevent the partition strip 2 from deviating when it extends.

[0048] Furthermore, the partition slide 2 is provided with a support seat 23. The support seat 23 and the ejector seat 21 are arranged along the sliding direction of the partition slide 2. The upper surface of the support seat 23 is an arc shape that matches the bottom of the partition. The height of the support seat 23 is greater than the height of the ejector seat 21. When pressing the brake pad, the support seat 23 is located below the partition in the pressing mold. During pressing, the support seat 23 is used to support the partition first. After pressing, the partition slide 2 is moved so that the ejector seat 21 is located below the partition in the pressing mold. Then, the partition (brake pad) is pressed out and falls onto the ejector seat 21, avoiding direct pressing on the support seat 23 and preventing deformation of the brake pad.

[0049] The present invention provides a method for extruding material from a drum brake pad cylinder mold, comprising the following steps:

[0050] 1. Pressing out the partition: The partition slide 2 moves along the unloading channel 1 to the bottom of the pressing die, and the pressing block of the pressing die moves down, placing the partition on the partition slide 2;

[0051] 2. Separate the partition and brake pads, and remove the partition: The partition drag bar 2 exits along the ejection channel 1, and the partition exits under the drive of the limit block 22. The brake pads are separated from the partition and remain in the pressing mold.

[0052] 3. Remove the partition: The robotic arm moves the partition from the partition slide 2 to above the pressing mold for the next round of pressing;

[0053] 4. Press in the partition and press out the brake pad: The partition slide 2 moves along the unloading channel 1 to the bottom of the pressing mold. The pressing block of the pressing mold moves down to press the partition placed above the pressing mold into the pressing mold, and drives the brake pad to move down and fall on the partition slide 2.

[0054] 5. Disengage the brake pads: The partition strip 2 exits along the unloading channel 1, and the brake pads exit under the drive of the limit block 22;

[0055] 6. Remove brake pads: The robotic arm moves the brake pads from the partition slide 2 to the conveyor belt.

[0056] Furthermore, in step 1, the support seat 23 of the partition drag bar 2 is first moved to the bottom of the partition to support the partition and press the brake pad. Then, the ejector seat 21 of the partition drag bar 2 is moved to the bottom of the partition and the partition is placed on the ejector seat 21.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A method for ejecting material from a drum brake pad cylinder mold, characterized in that: A material ejection channel (1) is provided at the bottom of the pressing mold along the horizontal direction. The material ejection channel (1) is provided with a partition drag bar (2) for ejecting the partition and brake pad from the pressing mold and a material ejection rod for driving the partition drag bar (2) to slide. The partition drag bar (2) is provided with a material ejection seat (21). The side of the material ejection seat (21) is provided with a limiting block (22) for abutting against the end face of the partition or brake pad to hook it out of the pressing mold. The height of the material ejection channel (1) is greater than the sum of the height of the material ejection seat (21) and the partition, greater than the sum of the height of the material ejection seat (21) and the brake pad, and less than the sum of the height of the material ejection seat (21), the partition and the brake pad. When pressing the brake pad, the material ejection seat (21) is located below the partition inside the pressing mold. Includes the following steps: 1) Pressing out the partition: The partition slide (2) moves along the unloading channel (1) to the bottom of the pressing mold, and the pressing block of the pressing mold moves down, placing the partition on the partition slide (2); 2) Separate the partition and brake pads, and remove the partition: The partition drag bar (2) exits along the unloading channel (1), and the partition exits under the drive of the limit block (22). The brake pads are separated from the partition and remain in the pressing mold. 3) Remove the partition: The robotic arm moves the partition from the partition strip (2) to above the pressing mold for the next round of pressing; 4) Press in the partition and press out the brake pad: The partition strip (2) moves along the unloading channel (1) to the bottom of the pressing mold. The pressing block of the pressing mold goes down and first presses the partition placed above the pressing mold into the pressing mold, and drives the brake pad to go down and fall on the partition strip (2). 5) Exit the brake pads: The partition strip (2) exits along the unloading channel (1), and the brake pads exit under the drive of the limit block (22); 6) Remove the brake pads: The robotic arm moves the brake pads from the partition strip (2) to the conveyor belt.

2. The method for extruding material from a drum brake pad cylinder mold according to claim 1, characterized in that: It also includes a robotic arm (3) for gripping a partition or brake pad, and a robotic arm (4) for moving the robotic arm (3). The robotic arm (3) includes a clamping seat (31) connected to the robotic arm (4). The clamping seat (31) is provided with two clamps (32) for clamping the partition or brake pad from both sides, and a first cylinder (33) for driving the clamps (32).

3. The method for extruding material from a drum brake pad cylinder mold according to claim 2, characterized in that: The clamping seat (31) is also provided with a front claw (34) and a rear claw (35) for clamping the partition or brake pad from both ends, a second cylinder (36) for driving the front claw (34) to swing, and a third cylinder (37) for driving the rear claw (35) to swing. The front claw (34) and the rear claw (35) are hinged to the clamping seat (31).

4. The method for extruding material from a drum brake pad cylinder mold according to claim 3, characterized in that: The bottom of the ejector seat (21) is provided with a groove for avoiding the ends of the front claw (34) and the rear claw (35), and the limiting block (22) is symmetrically arranged on both sides of the groove.

5. The method for extruding material from a drum brake pad cylinder mold according to claim 1, characterized in that: The partition strip (2) is provided with two ejector seats (21), the positions of which match the positions of the mold cavity of the pressing mold.

6. The method for extruding material from a drum brake pad cylinder mold according to claim 1, characterized in that: The partition strip (2) is provided with two ejector seats (21) for the partition and two ejector seats (21) for the brake pad. When pressing the brake pad, the ejector seats (21) are located below the partition in the pressing mold.

7. The method for extruding material from a drum brake pad cylinder mold according to claim 1, characterized in that: A guide plate (5) for guiding is provided below the partition strip (2), and the guide plate (5) is located outside the pressing mold.

8. The method for extruding material from a drum brake pad cylinder mold according to claim 1, characterized in that: The partition slide (2) is provided with a support seat (23). The support seat (23) and the ejector seat (21) are arranged along the sliding direction of the partition slide (2). The upper surface of the support seat (23) is an arc shape that matches the bottom of the partition. The height of the support seat (23) is greater than the height of the ejector seat (21). When pressing the brake pad, the support seat (23) is located below the partition in the pressing mold.

9. The method for extruding material from a drum brake pad cylinder mold according to claim 8, characterized in that: In step 1), first move the support seat (23) of the partition drag bar (2) to the bottom of the partition to support the partition and press the brake pad, and then move the ejector seat (21) of the partition drag bar (2) to the bottom of the partition and place the partition on the ejector seat (21).

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