Pneumatic automatic ejection and mold stripping mechanism for opening and closing die forging blanks

Abstract

The utility model relates to an opening and closing die forging blank pneumatic automatic material ejecting and demolding mechanism which comprises a template, a fixed die holder, two movable die holders, two die cores, a demolding ejector rod, two side ejectors and two pneumatic linear driving pieces, and the movable die holders and the corresponding die cores are matched with each other to be provided with an assembly cavity for containing the side ejectors and allowing the side ejectors to move horizontally. The side ejector is movably installed in the assembling cavity, and the two sides of the assembling cavity are provided with a first opening allowing the telescopic end of the pneumatic linear driving piece to enter and a second opening allowing the side ejector to stretch out of the assembling cavity to enter a forging stock cavity correspondingly. The telescopic end of the pneumatic linear driving part acts to enter the assembly cavity through the first opening and pushes the side ejector to move forwards, so that the front end of the side ejector enters the forging stock cavity through the second opening; the forging stock ejection device can automatically eject out the forging stock, so that an operator can easily take out the forging stock.

Description

Technical Field

[0001] The utility model relates to the technical field of opening and closing dies, in particular to a pneumatic automatic ejection mechanism for opening and closing die forging blanks. Background Art

[0002] During the process of forging with open and close dies, the forging billet needs to be manually clamped out of the die by the operator. Due to the complex structure of the die cavity and the tight fit between the forging billet and the die, it is difficult to eject the forging billet from the die, which is time-consuming, labor-intensive and has low production efficiency.

[0003] The Chinese invention patent with publication number CN102989947B provides a composite insulator ball socket hardware forging process. When the mold is demolded, the demolding ejector pin is pushed upward, and the mold core moves up with the left and right movable seats and opens to both sides to complete the demolding. In this demolding method, the forging blank is still easy to fit tightly in the mold core on one side, and the operator needs to manually clamp the forging blank to remove the mold.

[0004] Therefore, the utility model proposes a pneumatic automatic ejection mechanism for opening and closing die forging blanks to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a pneumatic automatic ejection mechanism for an opening and closing die forging blank, which can automatically eject the forging blank so that an operator can easily take out the forging blank.

[0006] In order to solve the above technical problems, the technical scheme of the utility model is: a pneumatic automatic ejection and demoulding mechanism for opening and closing die forging billets, comprising a template, a fixed die base, two movable die bases, two die cores and a demoulding ejector, wherein the fixed die base is installed on the template, an inner cavity is provided in the center of the fixed die base, the two movable die bases cooperate with the inner cavity side wall of the fixed die base through a first guide structure inclined outward at the upper end, the die cores correspond one to one with the movable die bases, the two die cores are respectively installed on the corresponding movable die bases, and cooperate to form a forging billet cavity after the mold is closed, the demoulding ejector is connected to the two movable die bases through the second guide structure, and by moving up and down, the two movable die bases are driven to move between the mold closing position and the mold opening position to perform the mold opening and closing action, and the innovation point is: the pneumatic automatic ejection and demoulding mechanism also includes two side ejectors corresponding one to one with the movable die bases and two pneumatic linear drive members corresponding one to one with the side ejectors;

[0007] The movable die base and the corresponding die core cooperate to form an assembly cavity for accommodating the side ejector and for horizontal movement of the side ejector. The side ejector is movably installed in the assembly cavity. The two sides of the assembly cavity are respectively a first opening for the telescopic end of the pneumatic linear drive member to enter and a second opening for the side ejector to extend out of the assembly cavity and enter the forging blank cavity. When the movable die base moves to the mold opening position driven by the demolding ejector rod, the telescopic end of the pneumatic linear drive member moves into the assembly cavity through the first opening and pushes the side ejector forward, so that the front end of the side ejector enters the forging blank cavity through the second opening.

[0008] Furthermore, the side ejector includes a push rod section, a limit section, a boss section and a push rod section which are arranged in sequence. The outer diameters of the push rod section, the boss section and the limit section increase in sequence, and the outer diameter of the limit section is larger than that of the push rod section. A spring is mounted on the push rod section.

[0009] Furthermore, a groove for installing the mold core is formed on the top surface of the movable mold base, the mold core is installed in the groove, and cooperates with the movable mold base to form a limiting segment assembly groove for accommodating the limiting segment and providing for movement; a push rod segment assembly hole for accommodating the push rod segment and providing for axial movement of the push rod segment is formed on the movable mold base; a spring assembly groove for the spring and the boss segment to enter, and a push rod segment assembly hole connected to the forging blank cavity are formed on the mold core; the push rod segment assembly hole, the limiting segment assembly groove, the spring assembly groove and the push rod segment assembly hole together constitute an assembly cavity; the push rod segment is arranged in the push rod segment assembly hole, the limiting segment is arranged in the limiting segment assembly groove, the push rod segment is arranged in the push rod segment assembly hole, one end of the spring is against the end surface of the boss segment, and the other end is against the bottom surface of the spring assembly groove.

[0010] Furthermore, a cover plate is provided at the top opening of the limiting section assembly groove, and the cover plate is detachably connected to the movable mold base by bolts.

[0011] Furthermore, the first guide structure includes a first T-shaped through groove opened on the side wall of the inner cavity of the fixed mold base and a first T-shaped slider arranged on the outer side wall of the movable mold base, the first T-shaped through groove is inclined from bottom to top in a direction away from the center of the fixed mold base, and the first T-shaped slider is movably arranged in the first T-shaped through groove.

[0012] Furthermore, the second guiding structure includes a second T-shaped slider arranged on the top of the demoulding ejector rod and a second T-shaped through groove opened at the bottom of the two movable mold bases, and both sides of the second T-shaped slider are movably installed in the second T-shaped through grooves of the two movable mold bases.

[0013] The advantages of the utility model are:

[0014] The utility model provides a side ejector. When two movable die seats are moved to the die opening position under the drive of the demoulding ejector rod, the telescopic ends of the two pneumatic linear drive members respectively enter the assembly cavity through the first opening and push the corresponding side ejector forward, so that the front end of the side ejector enters the forging blank cavity through the second opening, and the forging blank fitted in the forging blank cavity is automatically ejected, so that the operator can easily take out the forging blank.

[0015] The side ejector of the utility model adopts a structural design of a push rod section, a limit section, a boss section and a push rod section, has a simple structure and is easy to process, and by sleeved springs on the push rod section, the side ejector can be retracted into the assembly cavity under the action of the spring elastic force when no external force is applied, without affecting other operations.

[0016] The utility model reasonably plans the assembly positions of various parts of the side ejector, which not only facilitates the assembly of the side ejector, but also limits the displacement length of the side ejector by limiting the limiting section.

[0017] The utility model prevents dust from entering the limiting section assembly groove and affecting the normal movement of the side ejector by arranging a cover plate at the opening of the limiting section assembly groove.

[0018] The movable mold base of the utility model cooperates with the first T-shaped sliding block and the first T-shaped through groove. The two movable mold bases are pushed upward by the demoulding ejector rod and separated to both sides to complete the mold opening action, thereby improving the connection strength between the movable mold base and the fixed mold base, and making the movable mold base more stable when opening and closing the mold.

[0019] The demoulding ejector rod of the utility model not only improves the connection strength with the two movable mold bases through the mutual cooperation of the second T-shaped sliding block and the second T-shaped through groove, but also makes the movement of the two movable mold bases more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a structural cross-sectional view of the pneumatic automatic ejection mechanism for opening and closing die forging blanks of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the side ejector of the utility model. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1-2 The pneumatic automatic ejection mechanism for an opening and closing die forging billet shown comprises a template 1, a fixed die base 2, two movable die bases 3, two die cores 4, a demoulding ejector rod 5, two side ejectors 6 and two pneumatic linear drive components.

[0026] The fixed mold base 2 is fixedly installed on the top surface of the template 1, and an inner cavity is provided in the center of the fixed mold base 2. The two movable mold bases 3 cooperate with the inner cavity side wall of the fixed mold base 2 through a first guide structure whose upper end is inclined outward. The first guide structure includes a first T-shaped through groove 21 opened on the inner cavity side wall of the fixed mold base 2 and a first T-shaped slider 31 arranged on the outer side wall of the movable mold base 3. The first T-shaped through groove 21 is inclined from bottom to top in a direction away from the center of the fixed mold base 2. The first T-shaped slider 31 is movably arranged in the first T-shaped through groove 21. Through the mutual cooperation of the first T-shaped slider 31 and the first T-shaped through groove 21, the two movable mold bases are pushed upward by the demolding ejector rod 5 and separated to both sides to complete the mold opening action, which not only improves the connection strength between the movable mold base 3 and the fixed mold base 2, but also makes the movable mold base 3 more stable when opening and closing the mold.

[0027] The demolding ejector rod 5 is arranged below the movable mold base 3. The demolding ejector rod 5 is connected to the two movable mold bases 3 through a second guide structure, and is driven to move up and down by an external device, so as to drive the two movable mold bases 3 to move between the mold closing position and the mold opening position to perform mold opening and closing actions. The second guide structure includes a second T-shaped slider 51 arranged on the top of the demolding ejector rod 5 and a second T-shaped through groove 32 opened at the bottom of the two movable mold bases 3. The two sides of the second T-shaped slider 51 are respectively movably installed in the second T-shaped through groove 32 of the two movable mold bases 3. When the demolding ejector rod 5 pushes the two movable mold bases 3 upward, the two movable mold bases 3 move upward while separating to both sides. During the separation process, the second T-shaped through groove 32 at the bottom of the two movable mold bases 3 and the second T-shaped slider 51 move relative to each other, thereby making the movement of the two movable mold bases more stable.

[0028] The mold core 4 corresponds to the movable mold base 3 one by one. The two mold cores 4 are respectively installed on the corresponding movable mold base 3 and cooperate to form a forging blank cavity after the mold is closed. The side ejector 6 corresponds to the movable mold base 3 one by one. The pneumatic linear drive component corresponds to the side ejector 6 one by one. In this embodiment, the pneumatic linear drive component adopts a cylinder. The movable mold base 3 and the corresponding mold core 4 cooperate to open an assembly cavity for accommodating the side ejector 6 and for the side ejector 6 to move horizontally. The side ejector 6 is movably installed in the assembly cavity. The two sides of the assembly cavity are respectively a first opening for the telescopic end of the pneumatic linear drive component to enter and a second opening for the side ejector 6 to extend out of the assembly cavity and enter the forging blank cavity.

[0029] In this embodiment, the side ejector 6 includes a push rod section 61, a limit section 62, a boss section 63 and a push rod section 64 arranged in sequence, wherein the push rod section 61, the boss section 63 and the push rod section 64 are all cylindrical structures, the radial section of the limit section 62 is a waist-shaped structure, the outer diameters of the push rod section 64, the boss section 63 and the limit section 62 increase in sequence, and the outer diameter of the limit section 62 is greater than the outer diameter of the push rod section 61, and a spring 65 is sleeved on the push rod section 64; a groove for mounting the mold core 4 is opened on the top surface of the movable mold base 3, and the mold core 4 It is installed in the groove and cooperates with the movable die base 3 to form a limiting segment assembly groove 72 for accommodating the limiting segment 62 and providing for movement. The movable die base 3 is provided with a push rod segment assembly hole 71 for accommodating the push rod segment 61 and providing for axial movement of the push rod segment 61. The outer side wall of the mold core 4 is provided with a spring assembly groove 73 for the spring 65 and the boss segment 63 to enter, and a push rod segment assembly hole 74 connected to the forging blank cavity. The push rod segment assembly hole 71, the limiting segment assembly groove 72, the spring assembly groove 73 and the push rod segment assembly hole 74 together constitute an assembly cavity.

[0030] When installing the side ejector, first insert the push rod section 61 of the side ejector into the push rod section assembly hole 71, then put the spring 65 on the push rod section 64, then insert the push rod section 64 into the push rod section assembly hole 74 of the mold core 4, and make the two ends of the spring 65 respectively rest on the end surface of the boss section 63 and the bottom surface of the spring assembly groove 73 on the mold core 4, and finally install the fixed mold core. The installation is convenient and quick, and the limit section of the side ejector is set in the limit section assembly groove 72 formed by the movable mold base 3 and the mold core 4, so as to limit the displacement length of the side ejector, and under the action of the spring elastic force, when no other external force is applied, the side ejector will shrink in the assembly cavity and will not affect other operations. In addition, in order to prevent dust from entering the limit section assembly groove and thus affecting the normal movement of the side ejector, a cover plate 75 is provided at the top opening of the limit section assembly groove 72, and the cover plate 75 is detachably connected to the movable mold base 3 by bolts, so as to facilitate the replacement and maintenance of the side ejector.

[0031] The utility model provides a side ejector. When two movable die seats are driven by a demoulding ejector rod to move upward to a die opening position, the telescopic ends of two pneumatic linear drive members respectively enter the assembly cavity through the first opening and push the corresponding side ejector forward, so that the front end of the side ejector enters the forging blank cavity through the second opening, and the forging blank fitted in the forging blank cavity is automatically ejected, so that an operator can easily take out the forging blank.

[0032] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pneumatic automatic ejection mechanism for an opening and closing die forging billet, comprising a template, a fixed die seat, two movable die seats, two die cores and a demoulding ejector, wherein the fixed die seat is mounted on the template, an inner cavity is arranged at the center of the fixed die seat, the two movable die seats cooperate with the inner cavity side wall of the fixed die seat through a first guide structure inclined outward at the upper end, the die cores correspond to the movable die seats one by one, the two die cores are respectively mounted on the corresponding movable die seats, and cooperate to form a forging billet cavity after the die is closed, the demoulding ejector is connected to the two movable die seats through a second guide structure, and by moving up and down, the two movable die seats are driven to move between the die closing position and the die opening position to perform the die opening and closing action, characterized in that: The pneumatic automatic ejection mechanism also includes two side ejectors corresponding to the movable mold base one by one and two pneumatic linear drive members corresponding to the side ejectors one by one; The movable die base and the corresponding die core cooperate to form an assembly cavity for accommodating the side ejector and for horizontal movement of the side ejector. The side ejector is movably installed in the assembly cavity. The two sides of the assembly cavity are respectively a first opening for the telescopic end of the pneumatic linear drive member to enter and a second opening for the side ejector to extend out of the assembly cavity and enter the forging blank cavity. When the movable die base moves to the mold opening position driven by the demolding ejector rod, the telescopic end of the pneumatic linear drive member moves into the assembly cavity through the first opening and pushes the side ejector forward, so that the front end of the side ejector enters the forging blank cavity through the second opening.

2. The pneumatic automatic ejection mechanism for opening and closing die forgings according to claim 1 is characterized in that: The side ejector comprises a push rod section, a limit section, a boss section and a push rod section which are arranged in sequence. The outer diameters of the push rod section, the boss section and the limit section increase in sequence, and the outer diameter of the limit section is larger than that of the push rod section. A spring is sleeved on the push rod section.

3. The pneumatic automatic ejection mechanism for opening and closing die forgings according to claim 2 is characterized in that: A groove for installing the mold core is formed on the top surface of the movable mold base, the mold core is installed in the groove, and cooperates with the movable mold base to form a limiting segment assembly groove for accommodating the limiting segment and providing for movement; a push rod segment assembly hole for accommodating the push rod segment and providing for axial movement of the push rod segment is formed on the movable mold base; a spring assembly groove for the spring and the boss segment to enter, and a push rod segment assembly hole connected with the forging blank cavity are formed on the mold core; the push rod segment assembly hole, the limiting segment assembly groove, the spring assembly groove and the push rod segment assembly hole together constitute an assembly cavity; the push rod segment is arranged in the push rod segment assembly hole, the limiting segment is arranged in the limiting segment assembly groove, the push rod segment is arranged in the push rod segment assembly hole, one end of the spring is against the end surface of the boss segment, and the other end is against the bottom surface of the spring assembly groove.

4. The pneumatic automatic ejection mechanism for opening and closing die forgings according to claim 3 is characterized in that: A cover plate is provided at the top opening of the limiting section assembly groove, and the cover plate is detachably connected to the movable mold base through bolts.

5. The pneumatic automatic ejection mechanism for opening and closing die forgings according to claim 1 is characterized in that: The first guide structure includes a first T-shaped through groove opened on the side wall of the inner cavity of the fixed mold base and a first T-shaped slider arranged on the outer side wall of the movable mold base. The first T-shaped through groove is inclined from bottom to top in a direction away from the center of the fixed mold base, and the first T-shaped slider is movably arranged in the first T-shaped through groove.

6. The pneumatic automatic ejection mechanism for opening and closing die forgings according to claim 1 is characterized in that: The second guide structure includes a second T-shaped slider arranged on the top of the demoulding ejector rod and a second T-shaped through slot opened at the bottom of the two movable mold bases. Both sides of the second T-shaped slider are movably installed in the second T-shaped through slots of the two movable mold bases.

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