Bar drawing device for hinge lug hole of die-casting machine

Abstract

The utility model discloses a die-casting machine hinge lug hole drawing rod device, which relates to the technical field of die casting and comprises a rope, a drawing rod, a driving mechanism and a supporting mechanism, the driving mechanism is fixedly connected with one end of the rope, the other end of the rope is fixedly connected with the drawing rod, and the driving mechanism is used for winding or releasing the rope. The supporting mechanism is arranged between the driving mechanism and the drawing rod and used for supporting the rope, and the center line of the rope located between the supporting mechanism and the drawing rod and the center line of the drawing rod are located on the same horizontal line. According to the drawing rod device for the hinge lug hole of the die-casting machine, the drawing rod can be rapidly drawn out from the hinge lug hole of the die, the machining difficulty of a workpiece is reduced, and damage to the drawing rod and the hinge lug hole in the drawing process of the drawing rod is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of die casting, in particular to a die casting machine ear hole reaming and rod drawing device. Background Art

[0002] A die-casting machine is a machine used for pressure casting. Under pressure, the die-casting machine hydraulically injects molten metal into a mold for cooling and forming. After the mold is opened, a solid metal casting can be obtained. The middle plate and the tail plate are equipped with hinge ears, which are connected to the long hinge and the hook hinge, and the hinge edge moves in series. During casting production, the sand mold in the hinge ear hole cannot be removed by itself, so a draw rod is inserted into the mold hinge ear hole. After the resin sand hardens, the draw rod is tightly connected to the hardened sand mold. Manually inserting steel bars into the hole at the end of the draw rod and rotating the steel bars to remove the draw rod is time-consuming, labor-intensive, and inefficient. It is also prone to uneven force, resulting in damage to the draw rod and the hinge ear hole. Therefore, a reasonable method is needed to simply and quickly remove the draw rod without damaging the mold hinge ear hole and the draw rod.

[0003] A Chinese patent (CN204747408U) discloses a sand mold demolding device. During molding, a draw rod is first inserted into the reaming hole. The outer end of the draw rod is 100 to 200 mm away from the outer side of the upper box. To facilitate extraction, the draw rod has an inclination, that is, the outer surface of the end of the draw rod is an inclined surface to facilitate extraction. The draw rod of the reaming hole in this patent must have a draft angle, which will cause the diameter of the reaming hole to gradually decrease, increasing the difficulty of processing the reaming hole. Manual extraction of the draw rod is time-consuming and labor-intensive, and can easily cause damage to the draw rod and the reaming hole. Utility Model Content

[0004] The purpose of the utility model is to provide a die-casting machine reaming hole rod extraction device to solve the problems existing in the above-mentioned prior art. It can quickly extract the extraction rod from the die reaming hole, reduce the processing difficulty of the workpiece, and reduce the damage to the extraction rod and the die reaming hole during the rod extraction process.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The utility model provides a device for extracting a rod for reaming an ear hole of a die-casting machine, comprising: a rope, a extracting rod, a driving mechanism and a supporting mechanism, wherein the driving mechanism is fixedly connected to one end of the rope, and the other end of the rope is fixedly connected to the extracting rod, the driving mechanism is used to reel in or release the rope, and the supporting mechanism is arranged between the driving mechanism and the extracting rod to support the rope, and the center line of the rope between the supporting mechanism and the extracting rod is on the same horizontal line as the center line of the extracting rod.

[0007] Preferably, the height at which the supporting mechanism supports the rope is adjustable.

[0008] Preferably, the support mechanism includes a bracket and a support rod, the support rod can be fixedly connected to the bracket at different height positions, and the support rod is used to support the rope.

[0009] Preferably, the bracket is provided with a plurality of first holes, and the plurality of first holes are respectively located at different heights, and the support rod can be inserted into any of the first holes and fixed.

[0010] Preferably, the draw rod is a cylindrical rod, and a second hole is provided at one end of the draw rod close to the rope, and the second hole is used to connect with the rope.

[0011] Preferably, the driving mechanism includes a driving device and a drum, one end of the rope is fixed to the drum, and the output shaft of the driving device is fixedly connected to the drum and can drive the drum to rotate to release or reel in the rope.

[0012] Preferably, one end of the rope is provided with a hook, and the hook is connected to the second hole.

[0013] Preferably, the driving mechanism further includes a trolley, and the driving device and the supporting mechanism are both fixed on the trolley.

[0014] Preferably, a through hole is provided on the sand box, and the end of the drawing rod extends out of the sand box through the through hole.

[0015] Preferably, the distance that the end of the draw rod extends from the outer side wall of the sand box is 100 to 150 mm.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model provides a device for extracting a rod from an ear hole of a die-casting machine, which relates to the technical field of die-casting. The device is fixedly connected to one end of a rope through a driving mechanism, and the other end of the rope is fixedly connected to a extracting rod. The driving mechanism is used to reel in or release the rope. The driving mechanism quickly extracts the extracting rod horizontally from the ear hole by winding the rope. A supporting mechanism is arranged between the driving mechanism and the extracting rod to support the rope. The center line of the rope between the supporting mechanism and the extracting rod is on the same horizontal line as the center line of the extracting rod. The extracting rod will not be subjected to upward or downward force during the extraction process, thereby reducing damage to the extracting rod and the ear hole of the mold during the extraction process, ensuring the dimensional accuracy of the workpiece, and the extracting rod is a cylindrical rod body without a draft angle. Therefore, the ear hole of the casting has no draft angle, which can reduce the processing allowance of the ear hole and reduce the processing difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the ear hole and rod extraction device for the die-casting machine provided by the utility model;

[0020] Among them: 11-driving mechanism; 1-driving device; 22-support mechanism; 2-bracket; 3-first hole; 4-support rod; 5-traveling crane; 6-rope; 7-second hole; 8-hook; 9-drawing rod; 10-ream ear; 11-ream ear hole; 12-sand box DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] In some preferred embodiments of the present invention, the die-casting machine ear hole drawing device is as follows: Figure 1 As shown, it includes: a rope 6, a draw rod 9, a driving mechanism 11 and a supporting mechanism 22. The driving mechanism 11 is fixedly connected to one end of the rope 6, and the other end of the rope 6 is fixedly connected to the draw rod 9. The driving mechanism 11 is used to reel in or release the rope 6. The supporting mechanism 22 is arranged between the driving mechanism 11 and the draw rod 9 to support the rope 6. The center line of the rope 6 between the supporting mechanism 22 and the draw rod 9 is on the same horizontal line as the center line of the draw rod 9. One end of the rope 6 is fixed to the driving mechanism 11, and the other end of the rope 6 is connected to the draw rod 9 through the supporting mechanism 22. The supporting mechanism 22 can ensure that the rope 6 between the supporting mechanism 22 and the draw rod 9 and the draw rod are on the same horizontal line. The driving mechanism 11 can quickly reel in the rope 6 and apply a large pulling force to the rope 6, so that the rope 6 can quickly remove the draw rod 9 horizontally from the reaming hole 11. The draw rod 9 will not be subjected to upward or downward forces during the extraction process, thereby reducing damage to the draw rod 9 and the reaming hole 11 during the extraction process and ensuring the dimensional accuracy of the workpiece.

[0024] In some other preferred embodiments of the present invention, the height at which the support mechanism 22 supports the rope 6 is adjustable. The support mechanism 22 can position the rope 6 at different heights, so that the rope 6 can be horizontally connected to the withdrawal rod 9 at different heights through the support mechanism 22, thereby horizontally removing the withdrawal rod 9 from the reaming hole 11.

[0025] In some other more preferred embodiments of the present invention, the support mechanism 22 includes a bracket 2 and a support rod 4. The support rod 4 can be fixedly connected to the bracket 2 at different heights, and the support rod 4 is used to support the rope 6. The support rod 4 is inserted into the bracket 2 so that the support rod 4 can have different height positions through the bracket 2, so that the rope 6 after passing through the support rods 4 at different heights can be horizontally connected to the withdrawal rods 9 at different heights. It should be noted that the support mechanism of the die-casting machine ear hole withdrawal device in the present invention is not limited to the above-mentioned setting method, and a support frame with adjustable height can also be used, and the top of the support frame is used to support the rope 6, thereby adjusting the height of the rope 6.

[0026] In some other preferred embodiments of the present invention, the bracket 2 is provided with a plurality of first holes 3, each of which is located at different heights, and the support rod 4 can be inserted into and fixed in any of the first holes 3. The plurality of first holes 3 allows the support rod 4 to be inserted, thereby meeting the requirements of the support rods 3 at different heights.

[0027] In some other preferred embodiments of the present invention, the draw rod 9 is a cylindrical rod, and a second hole 7 is provided at one end of the draw rod 9 near the rope 6, and the second hole 7 is used to connect with the rope 6. The draw rod 9 is a cylindrical rod, and compared with the draw rod 9 with a draft angle, the cylindrical rod can reduce the difficulty of processing the draw rod 9.

[0028] In other preferred embodiments of the present invention, the drive mechanism 11 includes a drive device 1 and a drum. The drive device 1 can be a motor. One end of the rope 6 is fixed to the drum. The output shaft of the drive device 1 is fixedly connected to the drum and can drive the drum to rotate to release or reel in the rope 6. The rope 6 is wound around the drum, and the output shaft of the drive device 1 can drive the drum to rotate forward or reverse, thereby achieving the recovery and release of the rope 6.

[0029] In some other preferred embodiments of the present invention, a hook 8 is provided at one end of the rope 6, and the hook 8 is connected to the second hole 7. When the hook 8 is inserted into the second hole 7, the center line of the hook 8 is aligned with the axis of the withdrawal rod 9. The hook 8 can be firmly connected to the withdrawal rod 9 through the second hole 7, so that the withdrawal rod 9 will not be detached from the hook 8 during the withdrawal process.

[0030] In some other preferred embodiments of the present invention, the driving mechanism 11 further includes a trolley 5, and the driving device 1 and the supporting mechanism 22 are both fixed to the trolley 5. The trolley 5 can drive the driving mechanism 11 and the supporting mechanism 22 to move, so that the drawing rod 9 at different positions can be drawn using the driving mechanism 11 and the supporting mechanism 22 on the trolley 5 without being restricted by the location.

[0031] In some other preferred embodiments of the present invention, a through hole is provided on the flask 12 , and the end of the draw rod 9 extends out of the flask 12 through the through hole, so that the hook 8 can be connected to the draw rod 9 .

[0032] In some other preferred embodiments of the present invention, the distance that the end of the draw rod 9 protrudes from the outer wall of the flask 12 is 100 to 150 mm. This allows the hook 8 to be connected to the draw rod 9 precisely, and prevents the hook 8 and the draw rod 9 from being disconnected due to the end of the draw rod 9 protruding too short from the outer wall of the flask 12, or prevents the draw rod 9 from being too long, which would waste material and increase production costs.

[0033] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A die-casting machine ear hole reaming rod extraction device, comprising: A rope and a draw rod, characterized in that it also includes a driving mechanism and a supporting mechanism, wherein the driving mechanism is fixedly connected to one end of the rope, and the other end of the rope is fixedly connected to the draw rod, the driving mechanism is used to reel in or release the rope, and the supporting mechanism is arranged between the driving mechanism and the draw rod to support the rope, and the center line of the rope between the supporting mechanism and the draw rod is on the same horizontal line as the center line of the draw rod.

2. The die-casting machine ear hole reaming rod extraction device according to claim 1, characterized in that: The height at which the supporting mechanism is supported on the rope is adjustable.

3. The die-casting machine ear hole reaming rod extraction device according to claim 2, characterized in that: The support mechanism comprises a bracket and a support rod. The support rod can be fixedly connected to the bracket at different height positions, and the support rod is used to support the rope.

4. The die-casting machine ear hole reaming rod extraction device according to claim 3, characterized in that: The bracket is provided with a plurality of first holes, and the plurality of first holes are respectively located at different heights, and the support rod can be inserted into any of the first holes and fixed.

5. The die-casting machine ear hole reaming rod extraction device according to claim 1, characterized in that: The draw rod is a cylindrical rod body, and a second hole is arranged at one end of the draw rod close to the rope, and the second hole is used to connect with the rope.

6. The die-casting machine ear hole reaming and rod extraction device according to claim 1, characterized in that: The driving mechanism comprises a driving device and a drum, one end of the rope is fixed on the drum, and the output shaft of the driving device is fixedly connected to the drum and can drive the drum to rotate to release or reel in the rope.

7. The die-casting machine ear hole reaming and rod extraction device according to claim 5, characterized in that: One end of the rope is provided with a hook, and the hook is connected to the second hole.

8. The die-casting machine ear hole reaming and rod extraction device according to claim 6, characterized in that: The driving mechanism also includes a trolley, and the driving device and the supporting mechanism are both fixed on the trolley.

9. The die-casting machine ear hole reaming and rod extraction device according to claim 1, characterized in that: The sand box is provided with a through hole, and the end of the draw rod extends out of the sand box through the through hole.

10. The die-casting machine ear hole reaming rod extraction device according to claim 9, characterized in that: The distance that the end of the draw rod protrudes from the outer side wall of the sand box is 100 to 150 mm.

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