A die-casting machine injection mechanism platen adjusting structure

Abstract

A pedestal adjustment structure for the injection mechanism of a die-casting machine includes a head plate, a pedestal plate, and an upper pull rod and a lower pull rod disposed between the head plate and the pedestal plate. One end of the upper pull rod is connected to the head plate, and the other end is connected to the pedestal plate. One end of the lower pull rod is connected to the head plate via a connecting device or an adjusting device, and the other end is connected to the pedestal plate via an adjusting device. The adjusting device includes a connecting assembly and an adjusting component. The other end of the lower pull rod is detachably connected to the pedestal plate via the connecting assembly. The connecting assembly is fixedly connected to the pedestal plate via a first fastener. An adjusting portion is provided on the pedestal plate at the connection between the lower pull rod and the pedestal plate. The adjusting component is movably disposed within the adjusting portion along the direction of the lower pull rod and abuts against the lower pull rod. The pedestal adjustment structure of the injection mechanism of the die-casting machine of the present invention is easy to operate, has high adjustment accuracy, reduces the labor intensity of workers, and improves production efficiency.

Description

Technical Field

[0001] This invention relates to a die-casting machine, and more particularly to a pedestal adjustment structure for the injection mechanism of a die-casting machine. Background Technology

[0002] The injection mechanism of a traditional die-casting machine includes a head plate, a jack plate, and a tie rod between the head plate and the jack plate. The jack plate is equipped with an injection cylinder, which is connected to the material tube. When the injection mechanism is working, the coaxiality of the piston rod of the injection cylinder and the material tube must be consistent. If there is a misalignment, it will affect the material conveying efficiency and may even lead to the inability to convey material. Therefore, the injection mechanism of a typical die-casting machine has a mechanism to adjust the coaxiality of the piston rod of the injection cylinder and the material tube. However, this mechanism is relatively complex, difficult to operate, and has low adjustment accuracy.

[0003] Therefore, further improvements are necessary. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and reasonable structure for adjusting the injection mechanism of a die-casting machine, which is easy to operate, has high adjustment accuracy, can reduce the labor intensity of workers, is easy to assemble, has reliable performance, low cost, and is highly practical, so as to overcome the shortcomings of the prior art.

[0005] A die-casting machine injection mechanism with a derrick adjustment structure designed for this purpose includes a head plate, a derrick, and an upper pull rod and a lower pull rod disposed between the head plate and the derrick. The upper pull rod has one end connected to the head plate and the other end connected to the derrick. The lower pull rod has one end connected to the head plate via a connecting device or an adjusting device, and the other end connected to the derrick via an adjusting device. The adjusting device includes a connecting assembly and an adjusting member. The other end of the lower pull rod is detachably connected to the derrick via the connecting assembly. The connecting assembly is fixedly connected to the derrick via a first fastener. An adjusting section is provided at the connection point between the lower pull rod and the derrick. The adjusting member is movably disposed within the adjusting section along the direction of the lower pull rod and abuts against the lower pull rod. After the first fastener is loosened, the adjusting member can adjust the orientation of the derrick's end face when moving within the adjusting section.

[0006] The connecting assembly includes a first pressure cover and a first connector. The first connector is pressed between the first pressure cover and the corrugated plate. The other end of the pull rod passes through the first pressure cover and the first connector in sequence and is inserted into the corrugated plate. The other end of the pull rod is provided with a first limiting part, which is limited between the first connector and the corrugated plate.

[0007] The first pressure cap is provided with a ring-shaped distribution of first through holes, and the shank is provided with a ring-shaped distribution of first fastening parts corresponding to the positions of the first through holes. The first fastener passes through the first through holes and is fastened to the first fastening parts to connect the first pressure cap and the shank.

[0008] The first fastener is fitted with an elastic element and a fixing block. The fixing block is pressed between the first fastener and the first pressure cover. The elastic element is disposed inside the fixing block, with one end elastically acting on the fixing block and the other end elastically acting on the first pressure cover.

[0009] The adjustment part has an opening at one end, the first limiting part covers the opening of the adjustment part, and the adjustment member is movably disposed in the space between the first limiting part and the bottom wall of the adjustment part.

[0010] One end of the upper pull rod is connected to the head plate via a connecting device, and the other end is connected to the shank via a connecting device.

[0011] The connecting device includes a second pressure cap and a second connecting member;

[0012] When the connecting device is used to connect the upper pull rod and the head plate, the second connecting member is pressed between the second pressure cover and the head plate. One end of the upper pull rod passes through the second pressure cover and the second connecting member in sequence and is inserted into the head plate. One end of the upper pull rod is provided with a second limiting part, which is limited between the second connecting member and the head plate.

[0013] When the connecting device is used to connect the upper pull rod and the bracket, the second connecting member is pressed between the second cover and the bracket. The other end of the upper pull rod passes through the second cover and the second connecting member in sequence and is inserted into the bracket. The other end of the upper pull rod is provided with a third limiting part, which is limited between the second connecting member and the bracket.

[0014] When the connecting device is used to connect the pull rod and the head plate, the second connecting member is pressed between the second pressure cover and the head plate. One end of the pull rod passes through the second pressure cover and the second connecting member in sequence and is inserted into the head plate. One end of the pull rod is provided with a fourth limiting part, which is limited between the second connecting member and the head plate.

[0015] The second pressure cap is provided with annularly distributed second through holes, and the shank or head plate is provided with annularly distributed second fastening parts corresponding to the positions of the second through holes. The second fastener passes through the second through holes and is fastened to the second fastening parts to connect the second pressure cap and the shank, or to connect the second pressure cap and the head plate.

[0016] The adjusting component is an adjusting bolt, and the adjusting part is a threaded hole. The adjusting bolt and the threaded hole are threadedly engaged to adjust the orientation of the end face of the plate.

[0017] The elastic element is a spring.

[0018] The die-casting machine injection mechanism of the present invention has a derrick adjustment structure. By setting two adjusting bolts at the bottom of the derrick, the end face orientation of the derrick can be adjusted. Since the injection cylinder is set on the derrick, adjusting the end face orientation of the derrick can adjust the direction of the piston rod of the injection cylinder, thereby adjusting the coaxiality of the piston rod of the injection cylinder and the material tube, thus ensuring that the coaxiality of the piston rod of the injection cylinder and the material tube is consistent. This derrick adjustment structure is simple in structure, easy to operate, and has high adjustment accuracy, which can reduce the labor intensity of workers and improve production efficiency. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the adjusting structure of the die-casting machine injection mechanism in one embodiment of the present invention.

[0020] Figure 2 for Figure 1 A magnified structural diagram at point C. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See Figures 1-2 The die-casting machine's injection mechanism includes a head plate 1, a die plate 2, and an upper pull rod 3 and two lower pull rods 4 positioned between the head plate 1 and the die plate 2. One end of the upper pull rod 3 is connected to the head plate 1, and the other end is connected to the die plate 2. One end of the lower pull rod 4 is connected to the head plate 1 via a connecting device A, and the other end is connected to the die plate 2 via an adjusting device B. The adjusting device B includes a connecting assembly and an adjusting bolt 10. The other end of the lower pull rod 4 is detachably connected to the die plate 2 via the connecting assembly. The connecting assembly is fixedly connected to the die plate 2 via screws 11. The die plate 2 has a threaded hole 2.1 at the connection point between the lower pull rod 4 and the die plate 2. The adjusting bolt 10 is movably positioned in the threaded hole 2.1 along the direction of the lower pull rod 4 and abuts against the lower pull rod 4. When adjusting the mortise plate adjustment structure, first loosen screw 11, then rotate adjusting bolt 10. One adjusting bolt 10 can be selected for adjustment depending on the actual situation. Rotating adjusting bolt 10 causes a slight movement of the end of mortise plate 2 corresponding to the rotating end of adjusting bolt 10, thus changing the orientation of the end face of mortise plate 2. Since the injection cylinder is mounted on mortise plate 2, adjusting the orientation of the end face of mortise plate 2 can adjust the direction of the injection cylinder piston rod, thereby adjusting the coaxiality of the injection cylinder piston rod and the material tube. After adjusting the coaxiality of the injection cylinder piston rod and the material tube, tighten screw 11. This mortise plate adjustment structure only requires loosening screw 11 and then rotating adjusting bolt 10, without disassembling any parts. It is easy to operate, has high adjustment accuracy, reduces the labor intensity of workers, and improves production efficiency.

[0023] The connecting assembly includes a first pressure cap 8 and a first connector 9. The first connector 9 is pressed between the first pressure cap 8 and the bracket 2. The other end of the pull rod 4 passes through the first pressure cap 8 and the first connector 9 in sequence and is inserted into the bracket 2. The other end of the pull rod 4 is provided with a first limiting part 4.1, which is located between the first connector 9 and the bracket 2. The first pressure cap 8 is provided with annularly distributed first through holes. The bracket 2 is provided with annularly distributed screw holes corresponding to the positions of the first through holes. The screws 11 pass through the first through holes and are fastened to the screw holes to connect the first pressure cap 8 and the bracket 2. The first limiting part 4.1 is located between the first connector 9 and the bracket 2, which can fix the other end of the pull rod 4. After the screws 11 are driven in to connect the first pressure cap 8 and the bracket 2, the other end of the pull rod 4 can be locked onto the bracket 2. When it is necessary to adjust the orientation of the end face of the shim plate 2, loosen the screw 11 to release the shim plate 2 from the restriction of the first pressure cover 8, and then the position of the shim plate 2 can be easily adjusted using the adjusting bolt 10.

[0024] A spring 12 and a fixing block 13 are fitted onto the screw 11. The fixing block 13 is pressed between the screw 11 and the first pressure plate 8. The spring 12 is disposed inside the fixing block 13, with one end elastically acting on the fixing block 13 and the other end elastically acting on the first pressure plate 8. The spring 12 and the fixing block 13 can enhance the reliability and tightness of the screw 11 connection and prevent the first pressure plate 8 from loosening between the first pressure plate 8 and the retaining plate 2 when the injection mechanism is working.

[0025] The threaded hole 2.1 is open at one end, and the first limiting part 4.1 covers the opening of the threaded hole 2.1. The adjusting bolt 10 is movably disposed in the space between the first limiting part 4.1 and the bottom wall of the threaded hole 2.1 to realize the adjustment of the end face of the shim plate 2 within a certain range.

[0026] One end of the upper pull rod 3 is connected to the head plate 1 via connecting device A, and the other end is connected to the shank 2 via connecting device A.

[0027] The connecting device A includes a second pressure cap 5 and a second connecting member 6;

[0028] When the connecting device A is used to connect the upper pull rod 3 and the head plate 1, the second connecting piece 6 is pressed between the second pressure cover 5 and the head plate 1. One end of the upper pull rod 3 passes through the second pressure cover 5 and the second connecting piece 6 in sequence and is then inserted into the head plate 1. One end of the upper pull rod 3 is provided with a second limiting part, which is limited between the second connecting piece 6 and the head plate 1.

[0029] When the connecting device A is used to connect the upper pull rod 3 and the bracket 2, the second connecting piece 6 is pressed between the second pressure cover 5 and the bracket 2. The other end of the upper pull rod 3 passes through the second pressure cover 5 and the second connecting piece 6 in sequence and is inserted into the bracket 2. The other end of the upper pull rod 3 is provided with a third limiting part, which is limited between the second connecting piece 6 and the bracket 2.

[0030] When connecting device A is used to connect pull rod 4 to head plate 1, second connecting member 6 is pressed between second cover 5 and head plate 1. One end of pull rod 4 passes through second cover 5 and second connecting member 6 in sequence and is inserted into head plate 1. One end of pull rod 4 is provided with fourth limiting part 4.2, which is limited between second connecting member 6 and head plate 1. The second limiting part, third limiting part and fourth limiting part 4.2 have the same function as the first limiting part 4.1, which can fix pull rod 3 or pull rod 4.

[0031] The second pressure cover 5 is provided with a ring-shaped distribution of second through holes. The shank 2 or the head plate 1 is provided with a ring-shaped distribution of screw holes corresponding to the positions of the second through holes. The screw 7 passes through the second through holes and is fastened to the screw holes to connect the second pressure cover 5 and the shank 2, or to connect the second pressure cover 5 and the head plate 1. This allows one end of the pull rod to be locked on the head plate and the other end to be locked on the shank 2.

[0032] The above describes the preferred embodiments of the present invention, illustrating and describing the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A derrick adjustment structure for the injection mechanism of a die-casting machine, comprising a head plate (1), a derrick (2), and an upper pull rod (3) and a lower pull rod (4) disposed between the head plate (1) and the derrick (2), characterized in that: One end of the upper pull rod (3) is connected to the head plate (1) and the other end is connected to the pedestal plate (2). One end of the lower pull rod (4) is connected to the head plate (1) through a connecting device (A) or an adjusting device (B), and the other end is connected to the pedestal plate (2) through an adjusting device (B). The adjusting device (B) includes a connecting component and an adjusting component (10). The other end of the lower pull rod (4) is detachably connected to the pedestal plate (2) through the connecting component. The connecting component is fixedly connected to the pedestal plate (2) through a first fastener (11). The pedestal plate (2) is provided with an adjusting part (2.1) at the connection between the lower pull rod (4) and the pedestal plate (2). The adjusting component (10) is movably disposed in the adjusting part (2.1) along the direction of the lower pull rod (4) and abuts against the lower pull rod (4). After the first fastener (11) is loosened, the adjusting component (10) can adjust the orientation of the end face of the pedestal plate (2) when it moves in the adjusting part (2.1). When adjusting the zigzag adjustment structure, first loosen the first fastener (11), then rotate the adjusting member (10), select one of the adjusting members (10) for adjustment. When the adjusting member (10) rotates, the end of the zigzag (2) corresponding to the rotating adjusting member (10) can move, thereby changing the end face orientation of the zigzag (2). The connecting assembly includes a first pressure cover (8) and a first connector (9). The first connector (9) is pressed between the first pressure cover (8) and the pedestal plate (2). The other end of the pull rod (4) passes through the first pressure cover (8) and the first connector (9) in sequence and is inserted into the pedestal plate (2). The other end of the pull rod (4) is provided with a first limiting part (4.1). The first limiting part (4.1) is limited between the first connector (9) and the pedestal plate (2). The adjustment part (2.1) is open at one end, the first limiting part (4.1) covers the opening of the adjustment part (2.1), and the adjustment member (10) is movably disposed in the space between the first limiting part (4.1) and the bottom wall of the adjustment part (2.1); The adjusting component (10) is an adjusting bolt, and the adjusting part (2.1) is a threaded hole. The adjusting bolt is threadedly engaged with the threaded hole to adjust the orientation of the end face of the slab (2). The connecting device (A) includes a second pressure cap (5) and a second connector (6); When the connecting device (A) is used to connect the upper pull rod (3) and the head plate (1), the second connecting piece (6) is pressed between the second pressure cover (5) and the head plate (1), and one end of the upper pull rod (3) passes through the second pressure cover (5) and the second connecting piece (6) in sequence and is then inserted into the head plate (1); When the connecting device (A) is used to connect the upper pull rod (3) and the bracket (2), the second connecting piece (6) is pressed between the second cover (5) and the bracket (2), and the other end of the upper pull rod (3) passes through the second cover (5) and the second connecting piece (6) in sequence and is inserted into the bracket (2); When the connecting device (A) is used to connect the pull rod (4) and the head plate (1), the second connecting piece (6) is pressed between the second cover (5) and the head plate (1), and one end of the pull rod (4) passes through the second cover (5) and the second connecting piece (6) in sequence and is then inserted into the head plate (1).

2. The adjusting structure of the die-casting machine injection mechanism according to claim 1, characterized in that: The first pressure cap (8) is provided with a first through hole distributed in an annular pattern, and the bracket (2) is provided with a first fastening part distributed in an annular pattern corresponding to the position of the first through hole. The first fastener (11) passes through the first through hole and is fastened to the first fastening part to connect the first pressure cap (8) and the bracket (2).

3. The adjusting structure of the die-casting machine injection mechanism according to claim 2, characterized in that: The first fastener (11) is fitted with an elastic element (12) and a fixing block (13). The fixing block (13) is pressed between the first fastener (11) and the first pressure cover (8). The elastic element (12) is disposed inside the fixing block (13), with one end acting elastically on the fixing block (13) and the other end acting elastically on the first pressure cover (8).

4. The adjusting structure of the die-casting machine injection mechanism according to claim 3, characterized in that: One end of the upper pull rod (3) is connected to the head plate (1) via a connecting device (A), and the other end is connected to the stern plate (2) via a connecting device (A).

5. The adjusting structure of the die-casting machine injection mechanism according to claim 4, characterized in that: The second pressure cap (5) is provided with a second through hole distributed in an annular pattern. The shank (2) or the head plate (1) is provided with a second fastening part distributed in an annular pattern at the position of the second through hole. The second fastener (7) passes through the second through hole and is fastened to the second fastening part to connect the second pressure cap (5) and the shank (2), or to connect the second pressure cap (5) and the head plate (1).

6. The adjusting structure of the die-casting machine injection mechanism according to claim 5, characterized in that: The elastic element (12) is a spring.

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