Device for integrally removing burrs of cast sand core

Abstract

The utility model discloses a device for integrally removing burrs of a casting sand core, which comprises a support frame, a plurality of groups of driving blocks are fixedly arranged above the support frame, and a connecting plate is fixedly arranged between two adjacent groups of driving blocks; a rotating rod is rotationally arranged on the inner side of the driving block, the upper end of the rotating rod penetrates through the driving block, and a first bevel gear is fixedly mounted on the outer side of the rotating rod; the right end of the first bevel gear is connected with a second bevel gear in an engaged mode, the right end of the second bevel gear is fixedly connected with a winding roller, and the right end of the winding roller penetrates through the driving block. The winding roller is located below the connecting plate, and a polishing chain is fixedly installed on the outer side of the winding roller. According to the device for integrally removing the burrs of the casting sand core, through the arrangement of a plurality of groups of polishing chains, the burrs of the sand core which moves up and down for multiple times can be integrally removed by the polishing chains through friction, so that the production efficiency of the sand core is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand core casting, in particular to a device for integrally removing the burrs of casting sand cores. Background Art

[0002] The sand cores produced by the existing core making machine have a gap at the junction of the upper and lower molds due to factors such as thermal expansion of the mold, and the produced sand cores have a circle of burrs (burrs) at the mold parting line; the burrs affect the subsequent casting quality and need to be removed;

[0003] Publication No. "CN209614149U" is a sand core flash cleaning tool, comprising a base, the base is a hollow structure, the base is sequentially arranged with a first protruding pin group, a second protruding pin group, a third protruding pin group and a fourth protruding pin group distributed circumferentially from the inside to the outside, and the first protruding pin group, the second protruding pin group, the third protruding pin group and the fourth protruding pin group respectively include a plurality of first protruding pins, second protruding pins, third protruding pins and fourth protruding pins. The flash cleaning tool can quickly and effectively remove the flash in the round rib of the hollow brake disc, saving time and effort, and without omission;

[0004] The cleaning tool removes the burrs of the brake disc through multiple groups of pin groups, but the cleaning tool can only remove the burrs of regular circular brake discs, but cannot remove the burrs of sand cores with special-shaped structures, which is not conducive to improving the applicability of the cleaning tool. Therefore, we propose a device for overall removal of burrs of casting sand cores that can well solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a device for removing the burr of a casting sand core as a whole, so as to solve the problem proposed in the above-mentioned background technology that the cleaning tools currently on the market remove the burr of a brake disc by means of a plurality of groups of protruding pins, but the cleaning tools can only remove the burr of a regular circular brake disc, but cannot remove the burr of a sand core with an irregular structure, which is not conducive to improving the applicability of the cleaning tools.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for removing the burrs of casting sand cores as a whole, comprising a support frame, a driving block is fixedly arranged on the support frame, and the driving blocks are arranged in multiple groups, and a connecting plate is fixedly installed between two adjacent groups of driving blocks;

[0007] It also includes: a rotating rod is rotatably arranged on the inner side of the driving block, and the upper end of the rotating rod is arranged to pass through the driving block, and a first bevel gear is fixedly installed on the outer side of the rotating rod; the right end of the first bevel gear is meshedly connected with the second bevel gear, and the right end of the second bevel gear is fixedly connected with a winding roller, and the right end of the winding roller is arranged to pass through the driving block; the winding roller is located below the connecting plate, and a grinding chain is fixedly installed on the outer side of the winding roller.

[0008] Preferably, the grinding chain is bent 360° at every small section, and each joint of the grinding chain is cross-shaped, and each link of the grinding chain is arc-shaped, and the grinding chain is made of metal material.

[0009] Preferably, a driving gas rod is fixedly installed on the right side of the support frame, and the end of the output shaft of the driving gas rod is fixedly connected to the driving motor, and the end of the output shaft of the driving motor is fixedly connected to the screw rod.

[0010] Preferably, the left end of the screw rod is rotatably connected to a fixed block, and a sliding block is fixedly installed on the left side of the fixed block, and the sliding block is slidably connected to the inner wall of the support frame.

[0011] Preferably, the outer side of the screw rod is threadedly connected to a clamping plate, the inner side of the clamping plate is slidably connected to a limit rod, and the left end of the limit rod is fixedly connected to a fixed block.

[0012] Preferably, a positioning plate is slidably connected to the inner side of the support frame, and a spring is provided below the positioning plate, and the lower end of the spring is fixedly connected to the inner wall of the support frame.

[0013] Preferably, connecting hooks are fixedly installed at equal intervals above the positioning plate, and the connecting hooks are connected to the grinding chain.

[0014] Compared with the prior art, the beneficial effect of the utility model is that the device for removing the burr of the casting sand core as a whole can remove the burr of the sand core by friction through the arrangement of several groups of grinding chains, which is beneficial to improve the production efficiency of the sand core. The specific contents are as follows:

[0015] (1) A grinding chain is provided, and each link of the grinding chain is arc-shaped and made of metal material, so that a plurality of grinding chains can vertically cover the sand core, so that the grinding chain can remove the overall burr of the irregularly shaped sand core, which is beneficial to improving the production effect of the sand core;

[0016] (2) A winding roller is provided, and the rotating rod is manually rotated so that the rotating rod rotates inside the driving block. The rotating rod drives the second bevel gear to rotate through the first bevel gear. The rotation of the second bevel gear drives the winding roller fixedly installed on the right side to rotate. The rotation of the winding roller can wind up the excess grinding chain, which is beneficial to improve the overall removal effect of the sand core burr;

[0017] (3) A driving gas rod is provided, and the driving gas rod is controlled to open, so that the driving gas rod drives the driving motor and the screw rod to move up and down repeatedly. At this time, multiple grinding chains will vertically cover the sand core, and the sand core will move up and down on the outside of the grinding chain, so that the grinding chain passes through the gaps of the sand core and moves the sand core up and down multiple times. The friction of the sand core during the movement removes the sand core burr, thereby achieving the purpose of removing the sand core burr;

[0018] (4) A screw is provided, and the driving motor is turned on so that the output shaft end of the driving motor drives the screw to rotate. Since the screw is threadedly connected with a clamping plate, the two sets of clamping plates will move relative to each other, and the sand core is clamped and limited by the two sets of clamping plates, which is conducive to the overall removal of the sand core burr;

[0019] (5) A positioning plate is provided, and the positioning plate is manually pulled upward so that the positioning plate drives the spring to stretch, and then the connecting hook is manually connected to the lower end of the grinding chain. The spring reset effect makes the connecting hook and the grinding chain stably connected, which is conducive to the overall removal of the sand core burr by the subsequent grinding chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front section structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0022] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0023] Figure 4 This is a schematic diagram of the side section structure of the connecting hook of the utility model;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the drive block of the utility model;

[0025] Figure 6 This is a schematic diagram of the top-sectional structure of the clamping plate of the utility model;

[0026] Figure 7 It is a schematic diagram of the top view structure of the clamping plate of the utility model.

[0027] In the figure: 1. support frame; 2. driving block; 3. connecting plate; 4. rotating rod; 5. first bevel gear; 6. second bevel gear; 7. winding roller; 8. grinding chain; 9. driving motor; 10. screw rod; 11. fixing block; 12. sliding block; 13. clamping plate; 14. positioning plate; 15. spring; 16. driving gas rod; 17. limiting rod; 18. connecting hook. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1: Solve the problem of being unable to limit the sand core, please refer to Figure 1-Figure 7 The utility model provides a technical solution: a device for removing the flash of a casting sand core as a whole, comprising a support frame 1, a driving block 2 is fixedly arranged above the support frame 1, and the driving block 2 is provided with multiple groups, and a connecting plate 3 is fixedly installed between two adjacent groups of driving blocks 2;

[0030] It also includes: a rotating rod 4 is rotatably arranged inside the driving block 2, and the upper end of the rotating rod 4 is arranged to penetrate the driving block 2, and a first bevel gear 5 is fixedly installed on the outer side of the rotating rod 4; the right end of the first bevel gear 5 is meshedly connected with a second bevel gear 6, and the right end of the second bevel gear 6 is fixedly connected with a winding roller 7, and the right end of the winding roller 7 is arranged to penetrate the driving block 2; the winding roller 7 is located below the connecting plate 3, and a grinding chain 8 is fixedly installed on the outer side of the winding roller 7;

[0031] The grinding chain 8 is bent 360° at every small section, and each joint of the grinding chain 8 is cross-shaped, and each link of the grinding chain 8 is arc-shaped, and the grinding chain 8 is made of metal; the left end of the screw rod 10 is rotatably connected to a fixed block 11, and a slider 12 is fixedly installed on the left side of the fixed block 11, and the slider 12 is slidably connected to the inner wall of the support frame 1; the outer side of the screw rod 10 is threadedly connected to a clamping plate 13, and the inner side of the clamping plate 13 is slidably connected to a limit rod 17, and the left end of the limit rod 17 is fixedly connected to the fixed block 11;

[0032] First, manually place the sand core between the two groups of clamping plates 13, and then control to turn on the drive motor 9 so that the output shaft end of the drive motor 9 drives the screw rod 10 to rotate. Since the screw rod 10 is threadedly connected with the clamping plate 13, the two groups of clamping plates 13 will move relatively, and the sand core is clamped and limited by the cooperation of the two groups of clamping plates 13, which is conducive to the overall removal of the sand core flash;

[0033] Embodiment 2: In this embodiment, if Figure 1-Figure 4 As shown, based on the first embodiment, a structure for removing the complicated overall effect of the sand core flash is also disclosed, and its specific contents are as follows;

[0034] Manually pass several groups of grinding chains 8 through the sand core, and then manually rotate the rotating rod 4 so that the rotating rod 4 rotates inside the driving block 2. The rotation of the rotating rod 4 will drive the first bevel gear 5 fixedly installed on its outer side to rotate. The rotation of the first bevel gear 5 will drive the second bevel gear 6 to rotate through meshing connection. The rotation of the second bevel gear 6 will drive the winding roller 7 fixedly installed on the right side to rotate. The rotation of the winding roller 7 can reel in the redundant grinding chain 8, so that the grinding chain 8 is reeled in between two adjacent groups of driving blocks 2, which is conducive to improving the overall removal effect of the sand core flash.

[0035] Embodiment 3: In this embodiment, if Figure 1-Figure 6 As shown, based on the second embodiment, a structure is also disclosed in which the sand core moves up and down multiple times to remove the sand core flash, and the specific contents are as follows;

[0036] A driving gas rod 16 is fixedly installed on the right side of the support frame 1, and the output shaft end of the driving gas rod 16 is fixedly connected to the driving motor 9, and the output shaft end of the driving motor 9 is fixedly connected to the screw rod 10; a positioning plate 14 is slidably connected to the inner side of the support frame 1, and a spring 15 is arranged below the positioning plate 14, and the lower end of the spring 15 is fixedly connected to the inner wall of the support frame 1; connecting hooks 18 are fixedly installed at equal intervals above the positioning plate 14, and the connecting hooks 18 are connected to the grinding chain 8;

[0037] Manually pull the positioning plate 14 upwards, so that the positioning plate 14 drives the spring 15 to stretch, and then manually connect the connecting hook 18 to the lower end of the grinding chain 8, so that the connecting hook 18 and the grinding chain 8 are stably connected through the reset effect of the spring 15, which is conducive to the overall removal of the sand core burr of the subsequent grinding chain 8;

[0038] The driving air rod 16 is controlled to be opened, so that the driving air rod 16 drives the driving motor 9 and the screw rod 10 to move up and down repeatedly. At this time, multiple grinding chains 8 will vertically cover the sand core, and the sand core will move up and down outside the grinding chain 8, so that the grinding chain 8 passes through the gaps of the sand core, and the sand core moves up and down multiple times. The friction of the sand core during the movement removes the sand core flash, thereby achieving the purpose of removing the sand core flash;

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for removing the flash of a casting sand core as a whole, comprising a support frame (1), a driving block (2) being fixedly arranged above the support frame (1), wherein the driving block (2) is arranged in a plurality of groups, and a connecting plate (3) is fixedly installed between two adjacent groups of driving blocks (2); It is characterized in that Also includes: A rotating rod (4) is rotatably arranged inside the driving block (2), and the upper end of the rotating rod (4) is arranged to penetrate the driving block (2), and a first bevel gear (5) is fixedly installed on the outer side of the rotating rod (4); The right end of the first bevel gear (5) is meshedly connected with the second bevel gear (6), and the right end of the second bevel gear (6) is fixedly connected with a winding roller (7), and the right end of the winding roller (7) is arranged to penetrate the driving block (2); The winding roller (7) is located below the connecting plate (3), and a grinding chain (8) is fixedly installed on the outer side of the winding roller (7).

2. The device for removing the flash of the casting sand core as a whole according to claim 1, characterized in that: The grinding chain (8) is bent 360 degrees at every small section, and each joint of the grinding chain (8) is cross-shaped, and each link of the grinding chain (8) is in an arc shape. At the same time, the grinding chain (8) is made of metal material.

3. The device for removing the flash of the casting sand core as a whole according to claim 2, characterized in that: A driving gas rod (16) is fixedly mounted on the right side of the support frame (1), and the output shaft end of the driving gas rod (16) is fixedly connected to a driving motor (9), and the output shaft end of the driving motor (9) is fixedly connected to a screw rod (10).

4. The device for removing the overall flash of the casting sand core according to claim 3 is characterized in that: The left end of the screw rod (10) is rotatably connected to a fixed block (11), and a sliding block (12) is fixedly installed on the left side of the fixed block (11), and the sliding block (12) is slidably connected to the inner wall of the support frame (1).

5. The device for removing the flash of the casting sand core as a whole according to claim 4, characterized in that: The outer side of the screw rod (10) is threadedly connected to a clamping plate (13), and the inner side of the clamping plate (13) is slidably connected to a limit rod (17), and the left end of the limit rod (17) is fixedly connected to a fixed block (11).

6. The device for removing the flash of the casting sand core as a whole according to claim 5, characterized in that: A positioning plate (14) is slidably connected to the inner side of the support frame (1), and a spring (15) is arranged below the positioning plate (14), and the lower end of the spring (15) is fixedly connected to the inner wall of the support frame (1).

7. The device for removing the flash of the casting sand core as a whole according to claim 6, characterized in that: Connecting hooks (18) are fixedly installed at equal intervals above the positioning plate (14), and the connecting hooks (18) are connected to the grinding chain (8).

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