Water gap removing device for sleeve die casting

Abstract

The utility model relates to a water gap removing device for a sleeve die casting, which comprises a working table, a handheld electric saw is hung on one side of the working table, a support structure is arranged on the table top of the working table, and the vertical section of the support structure is in an inverted U shape. A plurality of rotating shafts which are vertically arranged and are distributed at equal intervals in the length direction of the support structure are rotationally connected into the support structure, a power mechanism capable of driving the rotating shafts to rotate synchronously is jointly connected among the rotating shafts in a transmission mode, and the power mechanism is installed on the workbench; the top end of each rotating shaft penetrates through the support structure and then is coaxially provided with a bearing disc, each bearing disc is coaxially provided with a positioning pipe, and each positioning pipe is provided with a locking mechanism capable of locking the sleeve die casting. The positions of the sleeve die castings do not need to be loosened or tightened, and the multiple sleeve die castings can be rotated at the same time each time, so that the removal efficiency of the drainage opening materials can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of die-casting production equipment, and particularly relates to a sprue removing device for sleeve die-castings. Background Art

[0002] A sleeve die-casting is a cylindrical structure with openings at both ends. Currently, during the production of sleeve die-castings, sprue materials usually remain on the outer surface of the sleeve die-castings. Therefore, after the sleeve die-castings are removed from the mold, the sprue materials need to be removed.

[0003] In the existing methods for removing sprue materials, sometimes a hand-held electric saw is used by workers to cut the sprue materials, and then the cut position is polished. During the process of removing the sprue materials, when the sprue materials at a certain position are removed, if there are also sprue materials at other positions on the sleeve die-casting, the sleeve die-casting needs to be rotated. However, since the position of the sleeve die-casting needs to be fixed when removing the sprue materials, when rotating the sleeve die-casting, the position of the sleeve die-casting needs to be tightened and loosened multiple times. Moreover, in the existing technology, only one sleeve die-casting can be rotated at a time, so the efficiency of removing the sprue materials needs to be improved. Therefore, there are still drawbacks and deficiencies in the existing technology. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a sprue removing device for sleeve die-castings to solve the problems raised in the above background art.

[0005] The technical solution adopted by the utility model to solve the above problems:

[0006] A sprue removing device for sleeve die-castings includes a workbench. A hand-held electric saw is hung on one side of the workbench. A support structure is installed on the tabletop of the workbench. The vertical section of the support structure is an inverted U shape, and several vertically arranged rotating shafts are rotatably connected inside the support structure and are equally spaced along the length direction of the support structure. A power mechanism capable of driving the several rotating shafts to rotate synchronously is commonly connected between the several rotating shafts, and the power mechanism is installed on the workbench; the top ends of the rotating shafts all coaxially install bearing discs after passing through the support structure, positioning tubes are coaxially installed on the bearing discs, and locking mechanisms capable of locking sleeve die-castings are installed on the positioning tubes.

[0007] Furthermore, a gear is sleeved at the bottom of each rotating shaft, a rack parallel to the support structure is commonly meshed between the several gears, a guide rail parallel to the rack is installed on the side of the rack away from the gears, the guide rail is slidably connected to the workbench, and the power mechanism includes a second electric telescopic rod parallel to the guide rail and installed on the workbench. The telescopic end of the second electric telescopic rod is connected to the guide rail.

[0008] Further, a guide housing which is arranged parallel to the guide rail and has openings at both ends is installed on the tabletop of the workbench. The guide housing is located inside the bracket structure, and a guide through hole which is as long as the guide housing is formed at the middle position on the side of the guide housing close to the guide rail to form a guide groove. The guide rail is adapted to the guide groove and is slidably connected to the guide housing through the guide groove. The rack is located outside the guide housing and is connected to the guide rail.

[0009] Further, the second electric telescopic rod is a servo electric cylinder.

[0010] Further, each locking mechanism includes a first electric telescopic rod which is installed on the positioning tube and is coaxially arranged with the positioning tube. The bottom end of the first electric telescopic rod is a telescopic end and is located inside the positioning tube, and pressing blocks are coaxially installed at the telescopic ends of the first electric telescopic rods. The pressing blocks are frustum-shaped with a wide top and a narrow bottom, and a plurality of guide rods which are equidistantly distributed along the circumferential direction of the positioning tube are arranged between the pressing blocks and the positioning tube. The guide rods are all parallel to the radial direction of the positioning tube, and the ends of the guide rods far away from the pressing blocks all penetrate through the positioning tube and are slidably connected to the positioning tube. Semicircular spherical limiting blocks are installed at the other ends of the guide rods, and the limiting blocks are respectively abutted against the pressing blocks. Springs are sleeved on the guide rods located between the limiting blocks and the positioning tube.

[0011] Further, rubber blocks are sleeved at the ends of the guide rods far away from the limiting blocks, and receiving grooves which can accommodate the rubber blocks are formed on the positioning tubes.

[0012] Adopting the above technical solution, the beneficial effects of the present utility model are as follows:

[0013] When the present utility model is in use, multiple sleeve castings can be respectively sleeved on the positioning tubes. Until the bottom ends of the sleeve castings are abutted against the bearing plate, the positions of the sleeve castings can be locked and fixed by using the locking mechanism. At this time, an operator can manually cut the sprue materials on the outer surfaces of the multiple sleeve castings in sequence through a hand-held electric saw. Then, the power mechanism can drive a plurality of rotating shafts to rotate synchronously to rotate the multiple sleeve castings simultaneously, so as to facilitate the removal of the sprue materials at other positions on the sleeve castings. Generally speaking, after the positions of the sleeve castings are fixed, when the sleeve castings are rotated, it is no longer necessary to loosen or tighten the positions of the sleeve castings, and multiple sleeve castings can be rotated simultaneously each time, thereby improving the removal efficiency of the sprue materials. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is Figure 1 a partially enlarged schematic structural diagram at A in

[0016] Figure 3It is the top view of some devices of the present utility model;

[0017] Figure 4 It is the structural schematic diagram of the present utility model in the working state.

[0018] Reference numerals: 1, rotating shaft; 2, power mechanism; 3, locking mechanism; 31, first electric telescopic rod; 32, pressing block; 33, guide rod; 34, limiting block; 35, spring; 36, power supply device; 37, switch controller; 38, rubber block; 4, hand-held electric saw; 5, guide housing; 6, bracket structure; 7, bearing plate; 8, positioning tube; 81, receiving groove; 9, rack; 10, guide rail; 11, workbench; 12, gear; 13, sleeve die casting. Specific embodiments

[0019] To make the purpose, technical solutions and beneficial effects of the present utility model clearer, the following further describes the embodiments of the present utility model in detail with reference to the drawings.

[0020] As Figures 1 to 4 shown, the present utility model provides a device for removing the sprue of a sleeve die casting, which includes a workbench 11. A hand-held electric saw 4 is hung on one side of the workbench 11. The hand-held electric saw 4 is a prior art, which includes a circular saw, etc.; and a wire with a certain length and a plug is installed on the hand-held electric saw 4. During use, the hand-held electric saw 4 can be connected to the power supply through the plug; a bracket structure 6 is installed on the tabletop of the workbench 11. The vertical section of the bracket structure 6 is an inverted U shape, and several vertically arranged rotating shafts 1 that are equally spaced along the length direction of the bracket structure 6 are rotatably connected inside the bracket structure 6. A power mechanism 2 that can drive several rotating shafts 1 to rotate synchronously is commonly connected between several rotating shafts 1, and the power mechanism 2 is installed on the workbench 11; the top ends of the rotating shafts 1 all coaxially install bearing plates 7 after passing through the bracket structure 6. Positioning tubes 8 are coaxially installed on the bearing plates 7, and locking mechanisms 3 that can lock the sleeve die casting 13 are installed on the positioning tubes 8. Specifically, the outer diameter of the positioning tube 8 is adapted to the inner diameter of the sleeve die casting 13, and the diameter of the bearing plate 7 is larger than the inner diameter of the sleeve die casting 13.

[0021] During use, multiple sleeve die-castings 13 can be respectively sleeved on the positioning tube 8. Until the bottom end of the sleeve die-casting 13 abuts against the bearing plate 7, the locking mechanism 3 can be used to lock and fix the position of the sleeve die-casting 13. At this time, an operator can use a hand-held electric saw 4 to cut the sprue materials on the outer surfaces of multiple sleeve die-castings 13 in sequence. Then, the power mechanism 2 can drive several rotating shafts 1 to rotate synchronously to rotate multiple sleeve die-castings 13 simultaneously. This can facilitate the removal of sprue materials at other positions on the sleeve die-castings 13. Generally speaking, after the position of the sleeve die-casting 13 is fixed in the present utility model, when the sleeve die-casting 13 is rotated, there is no need to loosen or tighten the position of the sleeve die-casting 13 again, and multiple sleeve die-castings 13 can be rotated simultaneously each time, thereby improving the removal efficiency of the sprue materials. In addition, it is also convenient to use equipment such as a hand-held grinding machine to grind the cutting position subsequently. In addition, the bottom ends of the rotating shafts 1 are all located within the workbench 11 and are rotatably connected to the workbench 11 to ensure the structural stability of the rotating shafts 1.

[0022] The specific setting method for the synchronous rotation between several rotating shafts 1 is as follows: As Figure 1 , Figure 3 and Figure 4 shown, gears 12 are sleeved on the bottoms of the rotating shafts 1. A rack 9 parallel to the bracket structure 6 is meshed among several gears 12. A guide rail 10 parallel to the rack 9 is installed on the side of the rack 9 away from the gears 12. The guide rail 10 is slidably connected to the workbench 11. The power mechanism 2 includes a second electric telescopic rod parallel to the guide rail 10 and installed on the workbench 11. The telescopic end of the second electric telescopic rod is connected to the guide rail 10. Specifically, the second electric telescopic rod is externally connected to a power supply and a start-stop switch. And in the initial state, the telescopic end of the second electric telescopic rod is in a retracted state. During use, by the telescopic movement of the telescopic end of the second electric telescopic rod, the rack 9 can be driven to move horizontally through the guide rail 10. During the horizontal movement of the rack 9, multiple rotating shafts 1 can be driven to rotate synchronously through the gears 12 to rotate multiple sleeve die-castings 13 simultaneously. The telescopic length of the second electric telescopic rod can make the rotating shaft 1 rotate one circle. In addition, the second electric telescopic rod is a servo electric cylinder in the prior art that can stop telescoping at any position, so that the sprue materials at any position on the sleeve die-casting 13 can be rotated to a suitable position.

[0023] The specific setting method for the sliding connection between the guide rail 10 and the workbench 11 is as follows: As Figure 1 , Figure 3 and Figure 4As shown, a guiding shell 5 which is parallel to the guide rail 10 and has openings at both ends is installed on the tabletop of the workbench 11. The guiding shell 5 is located inside the support structure 6, and a guiding through hole of the same length as the guiding shell 5 is formed in the middle position on the side of the guiding shell 5 close to the guide rail 10 to form a guiding groove. The guide rail 10 is adapted to the guiding groove and is slidably connected to the guiding shell 5 through the guiding groove, so as to ensure the stability of the guide rail 10 during the horizontal movement process; the rack 9 is located outside the guiding shell 5 and is connected to the guide rail 10. Specifically, the telescopic end of the second electric telescopic rod can extend into the guiding shell 5, and by telescoping the telescopic end of the second electric telescopic rod, the guide rail 10 can be driven to slide along the guiding shell 5 to drive the rack 9 to move horizontally.

[0024] The specific setting method of the locking mechanism 3 is as follows: As Figure 1 , Figure 2 shown in Figure 4 , the locking mechanism 3 includes a first electric telescopic rod 31 which is installed on the positioning tube 8 and is coaxially arranged with the positioning tube 8. Specifically, the positioning tube 8 is a tubular structure with a closed top surface, and the first electric telescopic rod 31 can be set as a small electric push rod. And in the initial state, the telescopic end of the first electric telescopic rod 31 is in the retracted state; the bottom end of the first electric telescopic rod 31 is the telescopic end and is located inside the positioning tube 8, and a pressing block 32 is coaxially installed at the telescopic end of each first electric telescopic rod 31. The pressing block 32 is in the shape of a frustum of a cone with a wide top and a narrow bottom, and several guiding rods 33 which are evenly distributed at equal intervals along the circumferential direction of the positioning tube 8 are arranged between the pressing block 32 and the positioning tube 8. The guiding rods 33 are all parallel to the radial direction of the positioning tube 8, and the ends of the guiding rods 33 far away from the pressing block 32 all penetrate through the positioning tube 8 and are slidably connected to the positioning tube 8. Specifically, when the telescopic end of the first electric telescopic rod 31 is in the retracted state, the ends of the guiding rods 33 far away from the pressing block 32 are located between the inner wall and the outer wall of the positioning tube 8, so as not to affect the sleeving of the sleeve die casting 13 on the positioning tube 8; hemispherical limiting blocks 34 are installed at the other ends of the guiding rods 33 respectively, the limiting blocks 34 are respectively abutted against the pressing block 32, and springs 35 are sleeved on the guiding rods 33 between the limiting blocks 34 and the positioning tube 8. Specifically, each first electric telescopic rod 31 is electrically connected to a power supply device 36 and a switch controller 37, and the power supply device 36 and the switch controller 37 are both installed on the bearing plate 7 to facilitate starting and stopping the first electric telescopic rod 31.

[0025] During use, when the telescopic end of the first electric telescopic rod 31 extends, it can drive the pressing block 32 to descend. During the descent of the pressing block 32, the guide rod 33 can be horizontally moved through the limiting block 34 and the spring 35 can be compressed simultaneously until the end of the guide rod 33 away from the pressing block 32 abuts against the outer wall of the sleeve die casting 13, and then the position of the sleeve die casting 13 can be automatically locked. Since the locking mechanism 3 locks the sleeve die casting 13 inside the sleeve die casting 13, it is convenient to cut off the sprue on the outer surface of the sleeve die casting 13. When disassembling the sleeve die casting 13, the telescopic end of the first electric telescopic rod 31 can be retracted. At this time, under the action of the spring 35 rebounding, the end of the guide rod 33 away from the pressing block 32 can be moved away from the inner wall of the sleeve die casting 13 to automatically release the sleeve die casting 13.

[0026] Furthermore, as Figure 1 , Figure 2 shown in Figure 4 , rubber blocks 38 are sleeved on the ends of the guide rod 33 away from the limiting block 34, and receiving grooves 81 capable of accommodating the rubber blocks 38 are formed in the positioning pipes 8. Specifically, when the locking mechanism 3 is in the initial state, the rubber blocks 38 are located in the receiving grooves 81 to prevent affecting the sleeving of the sleeve die casting 13 on the positioning pipes 8. By providing the rubber blocks 38, it can prevent the guide rod 33 from causing indentations on the inner wall of the sleeve die casting 13.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nozzle removal device for a sleeve die casting, comprising a workbench, one side of which is connected with a handheld electric saw, characterized in that: A support structure is installed on the table top of the workbench, and the vertical cross-section of the support structure is an inverted U-shape, and a number of vertically arranged rotating shafts that are equidistantly distributed along the length direction of the support structure are rotatably connected inside the support structure, and a power mechanism that can drive the several rotating shafts to rotate synchronously is commonly connected between the several rotating shafts, and the power mechanism is installed on the workbench; the top ends of the rotating shafts pass through the support structure and are coaxially mounted with a carrying plate, the carrying plates are coaxially mounted with a positioning tube, and the positioning tubes are mounted with a locking mechanism that can lock the sleeve die-casting.

2. A nozzle removal device for a sleeve die casting according to claim 1, characterized in that: A gear is mounted at the bottom of each rotating shaft, and a rack arranged parallel to the support structure is meshed between several gears. A guide rail arranged parallel to the rack is installed on the side of the rack away from the gear, and the guide rail is slidably connected to the workbench. The power mechanism includes a second electric telescopic rod arranged parallel to the guide rail and installed on the workbench, and the telescopic end of the second electric telescopic rod is connected to the guide rail.

3. A nozzle removal device for a sleeve die casting according to claim 2, characterized in that: A guide shell parallel to the guide rail and open at both ends is installed on the table top of the workbench. The guide shell is located in the bracket structure, and a guide through hole of the same length as the guide shell is opened in the middle position of the guide shell close to the guide rail to form a guide groove. The guide rail is adapted to the guide groove and is slidably connected to the guide shell through the guide groove. The rack is located outside the guide shell and connected to the guide rail.

4. A nozzle removal device for a sleeve die casting according to claim 2, characterized in that: The second electric telescopic rod is a servo electric cylinder.

5. The nozzle removal device for a sleeve die casting according to claim 1, characterized in that: The locking mechanisms include a first electric telescopic rod installed on and coaxially arranged on the positioning tube, the bottom end of the first electric telescopic rod is a telescopic end and is located in the positioning tube, and a pressure block is coaxially installed on the telescopic end of the first electric telescopic rod, the pressure block is a truncated cone with a wide top and a narrow bottom, and a plurality of guide rods equidistantly distributed along the circumference of the positioning tube are arranged between the pressure block and the positioning tube, the guide rods are parallel to the radial direction of the positioning tube, and one end of the guide rod away from the pressure block passes through the positioning tube and is slidably connected to the positioning tube, and a semi-spherical limit block is installed on the other end of the guide rod, the limit blocks are respectively abutted against the pressure blocks, and a spring is sleeved on the guide rod between the limit block and the positioning tube.

6. A nozzle removal device for a sleeve die casting according to claim 5, characterized in that: The ends of the guide rods away from the limiting blocks are sleeved with rubber blocks, and the positioning tubes are provided with accommodating grooves capable of accommodating the rubber blocks.

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