Carbon cold press forming die

Abstract

The utility model discloses a carbon cold press forming die, which relates to the technical field of processing dies and comprises a base, a lower die is arranged at the top of the base, a middle die is arranged at the top of the lower die, and a double-shaft motor drives cams on two sides to rotate through a driving shaft after working. The protruding part of the cam can penetrate through the ejection cavity to eject the lug base upwards, so that the lower mold and the middle mold can be ejected, and after the protruding part of the cam leaves the lug base, the lower mold and the middle mold can descend through the gravity of the lower mold and the middle mold and are used in cooperation with a lug plate and a sliding rod to achieve vertical lifting reciprocating motion. The cam can accurately control the lifting amplitude of the mold, the double-shaft motor can control the lifting speed of the mold, and the accuracy and consistency of vertical reciprocating lifting are ensured; due to the mechanical structure of cam transmission, the lifting motion of the die is more stable and smoother generally, and shaking and errors are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of processing molds, in particular to a carbon cold pressing molding mold. Background Art

[0002] According to the application number "CN201020252672.9", the vibration device includes a vibration motor and an eccentric vibrator connected to the vibration motor. When the vibration device is working, it generates a forced vibration with a small amplitude and a high frequency on the powder. Under the strong vibration, the friction between the powder particles and between the powder and the mold wall is reduced, the particles move and are reasonably distributed, and a high-density carbon block with a specified shape is obtained after pressing.

[0003] In the process of implementing this solution, the inventor found that the method of using a vibration motor, a vibrator and a piston rod to drive the mold to vibrate to expel air from the material has the following problems during implementation:

[0004] Limited vertical lifting effect: Although the vibration motor can generate vibration, it is difficult to ensure that the mold performs precise vertical lifting and lowering movements, especially when high-precision vertical movement is required;

[0005] Difficult to precisely control: The amplitude and frequency of the vibration motor can usually only be roughly adjusted, making it difficult to achieve precise control of the mold lifting movement, and the debugging of the program and the equipment is quite cumbersome;

[0006] reason:

[0007] The main function of the vibration motor is to generate vibration, rather than directly control the lifting and lowering movement of the mold. Therefore, when using a vibration motor to drive an eccentric vibrator to drive the mold to lift, it is difficult to achieve precise vertical reciprocating lifting effects. In addition, the vibration direction of the vibration motor is usually multi-dimensional, including horizontal and vertical directions. Although the lifting and lowering of the piston rod has a limiting effect, the vibration generated by the vibration motor when it is working will also have a lateral mode, thus causing unnecessary shaking of the entire mold. Over time, the base or bracket connected to the middle mold and the lower mold will be offset, or the connection will become loose, which will cause the upper hydraulic equipment to drive the upper mold to descend and fail to accurately insert it into the interior between the middle mold and the lower mold, resulting in mold pressure loss and the inability of carbon materials to be cold-pressed. Utility Model Content

[0008] The main purpose of the utility model is to provide a carbon cold pressing forming die, which can effectively solve the problems in the background technology.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] A carbon cold-pressing forming mold comprises a base, a lower mold is arranged on the top of the base, a middle mold is arranged on the top of the lower mold, a dual-axis motor is installed at the bottom of the base, drive shafts are fixed to both end output ends of the dual-axis motor, cams are installed at one end of the drive shaft away from the dual-axis motor, ear seats are arranged at both ends of the lower mold, top cavities are drilled at both ends of the base, ear plates are fixed at the four corners of the lower mold, sliding rods are fixed at the positions of the base located at the ear plates, the sliding rods are respectively penetrated and communicated with the ear plates matching the positions, and the sliding rods are respectively penetrated and slidably connected with the ear plates matching the positions.

[0011] Preferably, the positions of the top cavity, the ear seat and the cam at both ends of the base match each other.

[0012] Preferably, the dual-axis motor is a dual-axis counter-rotating motor.

[0013] Preferably, both ends of the ear seat are provided with bolted connecting plates, and the ear seat is detachably connected to the two ends of the lower mold through the bolted connecting plates.

[0014] Preferably, a gantry is fixed to the top of the base located at the top cavity position, a spring push rod is fixed to the inner top of the gantry, the bottoms of the spring push rods are fixedly connected to the tops of the ear seats, and the distance between the top of the gantry and the top of the base is smaller than the distance between the top of the middle mold and the top of the base.

[0015] Preferably, the outer walls of the driving shaft located at both ends of the cam are rotatably connected with bearing frames, and the bearing frames are respectively fixed to the bottom of the base.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] After the dual-axis motor is working, it drives the cams on both sides to rotate through the driving shaft. The protruding part of the cam can pass through the top cavity and push up the ear seat, so that the lower mold and the middle mold can be lifted up. When the protruding part of the cam leaves the ear seat, the lower mold and the middle mold can drop by their own gravity, and the ear plate and the slide bar are used to achieve vertical lifting reciprocating motion, thereby producing the following effects:

[0018] Precise control: The cam can accurately control the lifting range of the mold, and the dual-axis motor can control its lifting speed to ensure the accuracy and consistency of vertical reciprocating lifting;

[0019] Good stability: Due to the mechanical structure of cam transmission, the lifting and lowering movement of the mold is usually more stable and smooth, reducing jitter and error. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of the top view of a carbon cold pressing forming die of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a carbon cold-pressing mold of the utility model viewed from above;

[0022] Figure 3 This is a schematic diagram of the enlarged structure of the A position of a carbon cold pressing forming die of the utility model;

[0023] Figure 4 This is a schematic diagram of the enlarged structure of position B of a carbon cold pressing forming die of the utility model.

[0024] In the figure: 1. base; 2. lower mold; 3. middle mold; 4. top cavity; 5. ear seat; 51. bolted connecting plate; 6. dual-axis motor; 7. drive shaft; 8. cam; 9. gantry; 10. spring push rod; 11. ear plate; 12. slide rod; 13. bearing frame. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-4 As shown, a carbon cold pressing forming mold includes a base 1, a lower mold 2 is arranged on the top of the base 1, a middle mold 3 is arranged on the top of the lower mold 2, a dual-axis motor 6 is installed at the bottom of the base 1, driving shafts 7 are fixed to both end output ends of the dual-axis motor 6, cams 8 are installed on the end of the driving shaft 7 away from the dual-axis motor 6, ear seats 5 are arranged at both ends of the lower mold 2, top cavities 4 are drilled at both ends of the base 1, ear plates 11 are fixed at the four corners of the lower mold 2, and sliding rods 12 are fixed at the positions of the base 1 located at the ear plates 11, the sliding rods 12 are respectively penetrated and communicated with the ear plates 11 matching the positions, and the sliding rods 12 are respectively penetrated and slidably connected with the ear plates 11 matching the positions.

[0027] Specifically, the positions of the top cavity 4 , the ear seat 5 , and the cam 8 at both ends of the base 1 are matched respectively.

[0028] Specifically, the dual-axis motor 6 is a dual-axis counter-rotating motor, so that the two cams 8 can be lifted in opposite directions, so that the lower mold 2 can be stably lifted, avoiding unnecessary lateral shaking caused by lifting both sides in the same direction.

[0029] Specifically, both ends of the ear seat 5 are provided with bolt connection plates 51 , and the ear seat 5 is detachably connected to both ends of the lower mold 2 through the bolt connection plates 51 , so as to be easily separated from the lower mold 2 .

[0030] Specifically, a gantry 9 is fixed to the top of the base 1 located at the top cavity 4, and a spring push rod 10 is fixed to the inner top of the gantry 9. The bottom of the spring push rod 10 is fixedly connected to the top of the ear seat 5, and the distance between the top of the gantry 9 and the top of the base 1 is smaller than the distance between the top of the middle mold 3 and the top of the base 1, so as to avoid the problem that the upper hydraulic equipment drives the upper mold to touch the gantry 9 when descending. When the cam 8 is away from the ear seat 5, the spring push rod 10 can press it down to make it descend quickly, thereby increasing the rate of discharging air in the material through lifting and lowering movements.

[0031] Specifically, the outer walls of the driving shaft 7 at both ends of the cam 8 are rotatably connected with bearing frames 13, and the bearing frames 13 are respectively fixed to the bottom of the base 1, so that the rotation of the driving shaft 7 is more stable.

[0032] Working principle:

[0033] After working, the dual-axis motor 6 drives the cams 8 on both sides to rotate through the driving shaft 7. The protruding part of the cam 8 can pass through the top cavity 4 and push up the ear seat 5, so that the lower mold 2 and the middle mold 3 can be lifted. When the protruding part of the cam 8 leaves the ear seat 5, the lower mold 2 and the middle mold 3 can descend by their own gravity, and with the use of the ear plate 11 and the sliding rod 12, a vertical lifting and reciprocating motion is achieved.

[0034] The lower mold 2 and the middle mold 3 are detachably connected by bolts or buckles, which is an existing and public technology, and the connection structure will not be described in detail in this application.

[0035] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A carbon cold pressing mold, comprising a base (1), characterized in that: A lower mold (2) is arranged on the top of the base (1), a middle mold (3) is arranged on the top of the lower mold (2), a dual-axis motor (6) is installed on the bottom of the base (1), a driving shaft (7) is fixed to both output ends of the dual-axis motor (6), a cam (8) is installed on one end of the driving shaft (7) away from the dual-axis motor (6), ear seats (5) are arranged on both ends of the lower mold (2), top cavities (4) are opened on both ends of the base (1), ear plates (11) are fixed to the four corners of the lower mold (2), and sliding rods (12) are fixed at the positions of the ear plates (11) of the base (1), the sliding rods (12) are respectively connected to the ear plates (11) at matching positions, and the sliding rods (12) are respectively connected to the ear plates (11) at matching positions after being passed through.

2. A carbon cold pressing mold according to claim 1, characterized in that: The positions of the top cavity (4), the ear seat (5) and the cam (8) at both ends of the base (1) are matched respectively.

3. A carbon cold pressing mold according to claim 1, characterized in that: The dual-axis motor (6) is a dual-axis counter-rotating motor.

4. A carbon cold pressing mold according to claim 1, characterized in that: Both ends of the ear seat (5) are provided with bolt connection plates (51), and the ear seat (5) is detachably connected to the two ends of the lower mold (2) via the bolt connection plates (51).

5. The carbon cold pressing mold according to claim 1, characterized in that: A gantry (9) is fixed to the top of the base (1) located at the top cavity (4), a spring push rod (10) is fixed to the inner top of the gantry (9), the bottom of the spring push rod (10) is fixedly connected to the top of the ear seat (5), and the distance between the top of the gantry (9) and the top of the base (1) is smaller than the distance between the top of the middle mold (3) and the top of the base (1).

6. The carbon cold pressing mold according to claim 1, characterized in that: The outer walls of the drive shaft (7) at both ends of the cam (8) are rotatably connected to bearing frames (13), and the bearing frames (13) are respectively fixed to the bottom of the base (1).

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