Drum brake pad hot pressing device

Abstract

The utility model discloses a drum type brake pad hot-pressing device which comprises a fixed die body, a movable die body and a forming assembly, the fixed die body is used for being connected with materials to be machined, the movable die body is arranged relative to the fixed die body and can slide in the direction close to or away from the fixed die body, and the forming assembly comprises a first forming piece, a heat conduction piece and an electric heating piece. The first forming part is arranged between the fixed die body and the movable die body, a cavity is formed in the first forming part, the first forming part and the fixed die body are used for extrusion forming of materials to be machined, the heat conduction part is arranged in the cavity, and the electric heating part is connected to the movable die body and used for heating the first forming part and the heat conduction part. The drum-type brake pad hot-press forming device can solve the problem that in the prior art, due to the fact that a die is heated in an electric heating mode to complete hot-press forming machining of a drum-type brake pad, energy consumption of a hot-press device is large.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing molding, in particular to a drum brake pad hot pressing device. Background Art

[0002] Hot pressing is a common processing method for drum brake pads and is widely used.

[0003] For example, the Chinese utility model patent with application number: CN201720103164.6 is named: A brake pad hot pressing molding machine with uniform heating, comprising a hydraulic cylinder, a movable disc installed above the hydraulic cylinder and movable up and down, a fixed disc and a heating plate fixedly connected by a column, the heating plate comprising an upper heating plate and a lower heating plate, the lower heating plate being installed on the upper surface of the movable disc, the upper heating plate being installed on the lower surface of the fixed disc, at least one heating tube being built into the heating plate, the gaps between the heating tubes increasing from both sides to the middle of the heating plate, the device arranges a plurality of heating tubes in parallel inside the heating plate, the spacing between two adjacent heating tubes increasing from both sides to the middle, and the power of the two adjacent heating tubes decreasing from both sides to the middle, so as to adapt to the structural characteristics of slower heat dissipation in the center of the heating plate, and avoid excessive temperature in the middle of the heating plate affecting the service life of the heating tube, but the obvious disadvantage of electric heating is high energy consumption.

[0004] Therefore, there is an urgent need for a drum brake pad hot pressing device to solve the problem in the prior art that the mold is heated by electric heating to complete the hot pressing forming process of the drum brake pad, resulting in high energy consumption of the hot pressing device. Utility Model Content

[0005] In view of this, it is necessary to provide a drum brake pad hot pressing device to solve the technical problem in the prior art that the mold is heated by electric heating to complete the hot pressing forming process of the drum brake pad, resulting in high energy consumption of the hot pressing device.

[0006] In order to achieve the above technical objectives, the technical solution of the present utility model provides a drum brake pad hot pressing device, comprising:

[0007] Fixed mold body, used to connect the material to be processed;

[0008] a movable die body, the movable die body being arranged relative to the fixed die body and being able to slide toward or away from the fixed die body; and

[0009] The molding assembly includes a first molding part, a heat-conducting part and an electric heating part. The first molding part is arranged between the fixed mold body and the movable mold body and has a cavity. The first molding part is used to extrude the material to be processed with the fixed mold body. The heat-conducting part is built into the cavity. The electric heating part is connected to the movable mold body and is used to heat the first molding part and the heat-conducting part.

[0010] Furthermore, a receiving groove is provided on the top of the fixed mold body, the first molded part includes a first molded body and at least one first molded part, the cavity is formed inside the first molded body, the first molded part is connected to the first molded body, and can be slidably inserted into the receiving groove.

[0011] Furthermore, the molding assembly also includes at least one second molding part, which is arranged relative to the first molding part and connected to the inner wall of the accommodating groove, and the second molding part is arranged in cooperation with the abutting surface of the first molding part.

[0012] Furthermore, the cross section of the first forming portion is arc-shaped, and the cross section area of ​​the first forming portion continuously decreases in the direction approaching the second forming portion, and is formed with two tips, and the second forming portion cooperates with the first forming portion to form an arc-shaped groove.

[0013] Furthermore, the drum brake pad hot pressing device also includes at least one partition plate, which is connected to the inner wall of the accommodating groove and divides the accommodating groove into at least two independent placement grooves. The number of the second molding parts in the molding assembly is at least two, and the second molding parts are arranged in a one-to-one correspondence with the placement grooves and are connected to the inner wall of the placement groove.

[0014] Furthermore, the first forming parts and the second forming parts are arranged in a one-to-one correspondence, and a guide groove is formed between two adjacent first forming parts, and the partition plate can be slidably inserted into the guide groove.

[0015] Furthermore, a connecting cavity is provided inside the first forming portion, and both connecting cavities are communicated with the cavity, and the heat conducting member is filled in the cavity and the connecting cavity.

[0016] Furthermore, the heat conducting member is heat conducting oil.

[0017] Furthermore, the fixed mold body is provided with at least one first guide hole, and the drum brake pad hot pressing device also includes a connector and at least one guide rod, the connector is connected to the first forming body, and a connecting hole is provided relative to the first guide hole, one end of the guide rod is connected to the movable mold body, and the other end is slidably inserted into the first guide hole, and the connector is slidably sleeved on the guide rod through the connecting hole.

[0018] Furthermore, the movable mold body is provided with a second guide hole relative to the first guide hole, and one end of the guide rod is slidably inserted into the second guide hole.

[0019] Compared with the prior art, the present invention has the following beneficial effects: a fixed mold body is used to connect the material to be processed; a movable mold body is arranged relative to the fixed mold body and can slide toward or away from the fixed mold body so that the material to be processed is extruded; a first molding member is arranged between the fixed mold body and the movable mold body relative to the fixed mold body and has a cavity for accommodating a heat conductor; a heating member can heat the first molding member and the heat conductor so that the material to be processed is hot extruded. Compared with the prior art, by arranging the first molding member between the movable mold body and the fixed mold body that can slide toward or away from each other, a heat conductor is arranged in the first molding member, and after being heated by the electric heating member, the material to be processed can be heated and extruded so that the material to be processed is hot extruded. That is, by using electric heating to heat the material to be processed and the heat conductor, the heat conductor can continue to heat the material to be processed using residual heat after power is turned off, thereby reducing electricity consumption. This can solve the technical problem in the prior art of using electric heating to heat the mold to complete the hot pressing forming of drum brake pads, resulting in high energy consumption of the hot pressing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a drum brake pad hot pressing device provided by an embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the first molded body, the heat conducting member and the first molded portion provided by an embodiment of the present utility model being connected.

[0022] Description of reference numerals:

[0023] Fixed model body 1;

[0024] kinetic model 2;

[0025] Molding component 3;

[0026] First molded part 31;

[0027] First molded body 311;

[0028] a first forming portion 312;

[0029] heat conducting member 32;

[0030] Second forming portion 33;

[0031] Separator 4;

[0032] Guide rod 5;

[0033] Connector 6. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0035] See also Figure 1 、 Figure 2 The utility model provides a drum brake pad hot pressing device, including: a fixed mold body 1, a movable mold body 2 and a molding assembly 3, the fixed mold body 1 is used to connect the material to be processed, the movable mold body 2 is arranged relative to the fixed mold body 1, and can slide in the direction close to or away from the fixed mold body 1, the molding assembly 3 includes a first molding part 31, a heat conductive part 32 and an electric heating part, the first molding part 31 is arranged between the fixed mold body 1 and the movable mold body 2, and has a cavity, the first molding part 31 is used to extrude the material to be processed with the fixed mold body 1, the heat conductive part 32 is built into the cavity, and the electric heating part is connected to the movable mold body 2 for heating the first molding part 31 and the heat conductive part 32.

[0036] In this device, the fixed mold body 1 is used to connect the material to be processed, the movable mold body 2 is arranged relative to the fixed mold body 1, and can slide in the direction close to or away from the fixed mold body 1 so that the material to be processed is extruded, and the first molding part 31 is arranged relative to the fixed mold body 1 between the fixed mold body 1 and the movable mold body 2, and is provided with a cavity for accommodating the heat conductive part 32. The heating part can heat the first molding part 31 and the heat conductive part 32 so that the material to be processed is hot extruded and formed.

[0037] Compared with the existing technology, a first molding part 31 is arranged between a movable mold body 2 and a fixed mold body 1 that can slide close to or away from each other, and a heat-conducting part 32 is arranged in the first molding part 31. After being heated by the electric heating part, the material to be processed can be heated and extruded, so that the material to be processed is hot-extruded and formed. That is, the material to be processed and the heat-conducting part 32 are heated by electric heating. After power is cut off, the heat-conducting part 32 can continue to heat the material to be processed with the residual heat, thereby reducing the consumption of electric energy. It can solve the technical problem in the existing technology that the mold is heated by electric heating to complete the hot pressing forming process of the drum brake pad, thereby resulting in high energy consumption of the hot pressing device.

[0038] Furthermore, the device also includes a driving member, which has a fixed end and an extended end. The extended end of the driving member is connected to the movable mold body 2 and can perform reciprocating linear motion relative to the fixed end to drive the movable mold body 2 to slide closer to or away from the fixed mold body 1. The driving member here is a common and easy-to-purchase linear driving member on the market. This is a conventional setting known to technicians in this field and will not be elaborated on here.

[0039] like Figure 1 、 Figure 2As shown, a receiving groove is provided on the top of the fixed mold body 1, and the first molded part 31 includes a first molded body 311 and at least one first molded portion 312. A cavity is formed inside the first molded body 311, and the first molded portion 312 is connected to the first molded body 311 and can be slidably inserted into the receiving groove.

[0040] The first shaping portion 312 can be slidably inserted into the receiving groove and heat and extrude the material to be processed in the receiving groove.

[0041] As an implementation method, Figure 1 As shown, the molding assembly 3 further includes at least one second molding portion 33 , which is arranged opposite to the first molding portion 312 and connected to the inner wall of the accommodating groove, and the second molding portion 33 is arranged in cooperation with the abutting surface of the first molding portion 312 .

[0042] The second forming portion 33 is built into the receiving groove and is used to cooperate with the first forming portion 312 to pressurize the material to be processed, thereby facilitating the molding of the material to be processed and ensuring production quality.

[0043] As an implementation method, Figure 2 As shown, the cross section of the first forming portion 312 is arc-shaped, and the cross-sectional area of ​​the first forming portion 312 continuously decreases in the direction approaching the second forming portion 33 and is formed with two tips. The second forming portion 33 cooperates with the first forming portion 312 to form an arc-shaped groove.

[0044] Specifically, the thickness of the first forming portion 312 in the present device gradually decreases in a direction approaching the middle thereof, so as to form the first forming portion 312 with an arc-shaped cross section and two pointed ends.

[0045] As another embodiment, Figure 1 As shown, the device also includes at least one partition plate 4, which is connected to the inner wall of the accommodating groove and divides the accommodating groove into at least two independent placement grooves. The number of second molding parts 33 in the molding assembly 3 is at least two, and the second molding parts 33 are arranged in a one-to-one correspondence with the placement grooves and are connected to the inner wall of the placement groove.

[0046] By providing a partition plate 4 to separate the receiving tank into at least two independent placement tanks, multiple materials to be processed can be processed simultaneously, effectively improving production efficiency.

[0047] As another embodiment, Figure 1 As shown, the first forming portion 312 and the second forming portion 33 are arranged in a one-to-one correspondence, and a guide groove is formed between two adjacent first forming portions 312, and the partition plate 4 can be slidably inserted into the guide groove.

[0048] The guide groove is used to accommodate the partition plate 4, and can provide a sufficiently large stroke for the movable mold body 2, thereby ensuring the effect of the pressurized molding process.

[0049] As a preferred embodiment, Figure 2 As shown, a communicating cavity is further provided inside the first forming portion 312 , and both communicating cavities are connected to the cavity, and the heat conducting member 32 is filled in the cavity and the communicating cavity.

[0050] In order to ensure that the residual heat of the heat conducting member 32 can be efficiently transferred to the material to be processed, a connecting cavity connected to the cavity is further formed in the first forming portion 312 , and the heat conducting member 32 can directly heat the first forming portion 312 .

[0051] As an embodiment, the heat conducting member 32 is heat conducting oil.

[0052] The first forming body 311 and the heat transfer oil are heated simultaneously by the heating element. After power is turned off, the residual heat of the heat transfer oil can be transferred to the material to be processed through the first forming part 312, thereby effectively reducing energy consumption.

[0053] Furthermore, the heat transfer oil here is a conventional setting well known to those skilled in the art and will not be described in detail.

[0054] like Figure 1 As shown, the fixed mold body 1 is provided with at least one first guide hole, and the drum brake pad hot pressing device also includes a connector 6 and at least one guide rod 5. The connector 6 is connected to the first forming body 311 and is provided with a connecting hole relative to the first guide hole. One end of the guide rod 5 is connected to the movable mold body 2, and the other end is slidably inserted into the first guide hole, and the first forming body 311 is slidably sleeved on the guide rod 5 through the connecting hole.

[0055] The cooperation between the guide rod 5 and the guide hole plays a guiding and connecting role in the sliding of the movable mold body 2 relative to the fixed mold body 1.

[0056] Specifically, the device includes a plurality of guide rods 5 , which are evenly distributed around the fixed mold body 1 .

[0057] Among them as a factual way, such as Figure 1 As shown, the movable mold body 2 is provided with a second guide hole relative to the first guide hole, and one end of the guide rod 5 is slidably inserted into the second guide hole.

[0058] A second guide hole is also provided on the movable die body 2, so that the stroke during the pressurization process is large enough to ensure the extrusion force during the extrusion process and improve the processing quality.

[0059] The specific working process of the present invention is as follows: the fixed mold body 1 is used to connect the material to be processed; the movable mold body 2 is arranged relative to the fixed mold body 1 and can slide in the direction close to or away from the fixed mold body 1 so that the material to be processed is extruded; the first molding part 31 is arranged between the fixed mold body 1 and the movable mold body 2 relative to the fixed mold body 1, and a cavity for accommodating the heat conductor 32 is opened; the heating part can heat the first molding part 31 and the heat conductor 32 so that the material to be processed is hot extruded and formed. Compared with the prior art, by arranging the first molding part 31 between the movable mold body 2 and the fixed mold body 1 that can slide close to or away from each other, the first molding part 31 is provided with a heat conductor 32, and after being heated by the electric heating part, the material to be processed can be heated and extruded so that the material to be processed is hot extruded and formed, that is, the material to be processed and the heat conductor 32 are heated by electric heating. After the power is turned off, the heat conductor 32 can continue to heat the material to be processed using the residual heat, thereby reducing the consumption of electric energy.

[0060] During use, the friction powder for the first brake pad is placed in the placement tank. The electric heater is energized and moves downward with the movable mold body 2, squeezing the friction powder in the placement tank. Heat generated by the heating device is transferred through two pathways: first, through the first molded body 311, the first forming section 312, and the second forming section 33, to the placement tank; and second, through the first molded body 311, the heat-conducting element 32, and the first forming section 312. The heat transferred through the first pathway heats the friction powder in the placement tank to a predetermined temperature, completing the production of the first brake pad. Guide rods 5 return the first molded body 311 and the movable mold body 2 to their original position, and the electric heater is de-energized. The friction powder for the second brake pad is then placed in the placement tank. The first molded body 311 and the movable mold body 2 then move downward together, squeezing the friction powder in the placement tank. The heat used to heat the friction powder comes from the high-temperature thermal oil, which transfers its residual heat to the first forming section 312, heating the friction powder and completing the production of the second brake pad.

[0061] Furthermore, the above steps are repeated many times in a cycle. During the continuous hot pressing process of the brake pad, the purpose of hot pressing the brake pad is achieved by electric heating-oil heating, which can effectively reduce the energy consumption of hot pressing of the brake pad and reduce manufacturing costs.

[0062] The device, through the above structure, can solve the technical problem in the prior art that the mold is heated by electric heating to complete the hot pressing forming process of the drum brake pad, resulting in high energy consumption of the hot pressing device.

[0063] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A drum brake pad hot pressing device, characterized in that: include: Fixed mold body, used to connect the material to be processed; A movable mold body, which is arranged relative to the fixed mold body and can slide toward or away from the fixed mold body; as well as The molding assembly includes a first molding part, a heat conductive part and an electric heating part. The first molding part is arranged between the fixed mold body and the movable mold body and has a cavity. The first molding part is used to extrude the material to be processed with the fixed mold body. The heat conductive part is built into the cavity. The electric heating part is connected to the movable mold body and is used to heat the first molding part and the heat conductive part.

2. The drum brake pad hot pressing device according to claim 1, characterized in that: A receiving groove is provided on the top of the fixed mold body, and the first molded part includes a first molded body and at least one first molded portion, the cavity is formed inside the first molded body, and the first molded portion is connected to the first molded body and can be slidably inserted in the receiving groove.

3. The drum brake pad hot pressing device according to claim 2, characterized in that: The molding assembly further includes at least one second molding part, which is arranged relative to the first molding part and connected to the inner wall of the accommodating groove, and the second molding part is arranged in cooperation with the abutting surface of the first molding part.

4. The drum brake pad hot pressing device according to claim 3, characterized in that: The cross section of the first forming part is arc-shaped, and the cross section area of ​​the first forming part decreases continuously in the direction approaching the second forming part, and is formed with two tips. The second forming part cooperates with the first forming part to form an arc-shaped groove.

5. The drum brake pad hot pressing device according to claim 4, characterized in that: It also includes at least one partition plate, which is connected to the inner wall of the accommodating groove and divides the accommodating groove into at least two independent placement grooves. The number of the second molding parts in the molding assembly is at least two, and the second molding parts are arranged in a one-to-one correspondence with the placement grooves and connected to the inner wall of the placement groove.

6. The drum brake pad hot pressing device according to claim 5, characterized in that: The first forming parts and the second forming parts are arranged in one-to-one correspondence, and a guide groove is formed between two adjacent first forming parts, and the partition plate can be slidably inserted in the guide groove.

7. The drum brake pad hot pressing device according to claim 6, characterized in that: A connecting cavity is further provided inside the first forming portion, and both connecting cavities are communicated with the cavity, and the heat conducting member is filled in the cavity and the connecting cavity.

8. The drum brake pad hot pressing device according to claim 7, characterized in that: The heat conducting member is heat conducting oil.

9. The drum brake pad hot pressing device according to claim 7, characterized in that: The fixed mold body is provided with at least one first guide hole, and the drum brake pad hot pressing device also includes a connector and at least one guide rod, the connector is connected to the first forming body, and a connecting hole is provided relative to the first guide hole, one end of the guide rod is connected to the movable mold body, and the other end is slidably inserted into the first guide hole, and the connector is slidably sleeved on the guide rod through the connecting hole.

10. The drum brake pad hot pressing device according to claim 9, characterized in that: The movable mold body is provided with a second guide hole relative to the first guide hole, and one end of the guide rod is slidably inserted into the second guide hole.

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