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CN-224210349-U - Thimble of casting mold

CN224210349UCN 224210349 UCN224210349 UCN 224210349UCN-224210349-U

Abstract

The utility model relates to the technical field of mold accessories and discloses a thimble of a casting mold, which comprises a base and a sleeve, wherein the inner walls of the left side and the right side of the base are both connected with a pull rod in a sliding manner, the inner walls of the base are both provided with first springs, the opposite ends of the pull rod are both fixedly connected with limiting blocks, the opposite sides of the limiting blocks are both provided with inclined planes, the bottom end of the sleeve is fixedly connected with a butt joint rod, the inner wall of the sleeve is provided with a second spring, the inner wall of the sleeve is connected with a sliding rod in a sliding manner, and the sliding rod is connected with a thimble head through a lifting assembly. According to the utility model, through the inclined plane guiding and spring automatic resetting structure of the pull rod linkage limiting block, the sleeve and the base can be quickly assembled and disassembled without tools, the whole thimble replacing process is greatly simplified, the die maintenance efficiency is remarkably improved, the modular design ensures that each part is firmly connected and conveniently disassembled, the quick positioning and the replacement are convenient when the thimble is worn or has a fault, the downtime is effectively reduced, and the maintenance cost is reduced.

Inventors

  • YU TINGTING
  • YU HUIHUA
  • CAI BAOCHENG
  • WU WENPING
  • WU CHAO
  • CHEN QI

Assignees

  • 余江县富昌模具配件有限公司

Dates

Publication Date
20260508
Application Date
20250519

Claims (7)

  1. 1. The utility model provides a casting mold's thimble, its characterized in that, including base (1) and sleeve (5), the equal sliding connection of the left and right sides inner wall of base (1) has pull rod (2), the inner wall of base (1) all is provided with first spring (3), the equal fixedly connected with stopper (4) of relative one end of pull rod (2), the inclined plane is all established to the relative one side of stopper (4), the bottom fixedly connected with butt joint pole (6) of sleeve (5), the inner wall of sleeve (5) is provided with second spring (7), the inner wall sliding connection of sleeve (5) has slide bar (8), slide bar (8) are connected with thimble head (17) through lifting unit.
  2. 2. The thimble of a casting mold according to claim 1, wherein the opposite ends of the first spring (3) are connected to opposite sides of the stopper (4), and the opposite ends of the first spring (3) are connected to the inner wall of the base (1).
  3. 3. The thimble of a casting mold according to claim 1, wherein the bottom end of the second spring (7) is connected to the inner wall of the sleeve (5), and the top end of the second spring (7) is connected to the bottom end of the slide rod (8).
  4. 4. The thimble of a casting mold according to claim 1, wherein the top end of the base (1) is provided with a through hole corresponding to the bottom end of the butt joint rod (6), and the size of the through hole is matched with the butt joint rod (6).
  5. 5. The thimble of casting mold according to claim 1, wherein the lifting assembly comprises a lifting rod (15) which is positioned on the inner wall of the sliding rod (8) and is in sliding connection, a toothed plate (16) is fixedly connected to the outer wall of the front side of the lifting rod (15), a protection box (9) is fixedly connected to the outer wall of the front side of the sliding rod (8), a rotating handle (10) is rotatably connected to the inner wall of the front side of the protection box (9), a worm (11) is fixedly connected to the rear end of the rotating handle (10), a worm wheel (12) is connected to the outer wall of the worm (11) in a meshed manner, a rotating shaft (13) is fixedly connected to the inner wall of the worm wheel (12), a gear (14) is fixedly connected to the outer wall of the rotating shaft (13), and the thimble head (17) is fixedly connected to the top end of the lifting rod (15).
  6. 6. A casting mold ejector pin according to claim 5, wherein the toothed plate (16) is in meshing connection with the gear (14).
  7. 7. The ejector pin of the casting mold according to claim 5, wherein the outer wall of the rotating shaft (13) is rotatably connected to the inner wall of the protection box (9), and the outer wall of the worm (11) is rotatably connected to the inner wall of the protection box (9).

Description

Thimble of casting mold Technical Field The utility model relates to the technical field of mold accessories, in particular to a thimble of a casting mold. Background In the field of modern industrial manufacturing, casting molds are widely used in a number of industries, such as automobile manufacturing, home appliance production, electronic equipment manufacturing, and the like. The method can be used for casting and molding various liquid materials (such as plastics, aluminum alloy, zinc alloy and the like) according to the shape of a cavity designed in advance, so that parts and products with complex shapes and various specifications can be efficiently produced in batches, and the method is one of key basic equipment for realizing large-scale industrial production. In the existing casting mold thimble application scene, a plurality of technical problems to be solved exist. On the one hand, the disassembly and replacement of the thimble are very complicated, a traditional fixed connection mode is often adopted between the thimble and the die, when the thimble is worn and damaged to be replaced, or the thimble with other specifications is replaced due to different products, operators can complete the disassembly and the installation by means of special tools and through complicated operation steps, a great deal of manpower and time are consumed, the production is stopped for a long time, and the production efficiency is seriously affected. Disclosure of utility model The utility model aims to solve the defects in the prior art, and provides a thimble of a casting mold, which solves the technical problems of complex disassembly and replacement, easy ejection position change and inflexible length adjustment in the demolding of the existing thimble. In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a casting mold's thimble, includes base and sleeve, the equal sliding connection of the left and right sides inner wall of base has the pull rod, the inner wall of base all is provided with first spring, the equal fixedly connected with stopper of relative one end of pull rod, the inclined plane is all established to the relative one side of stopper, telescopic bottom fixedly connected with butt joint pole, telescopic inner wall is provided with the second spring, telescopic inner wall sliding connection has the slide bar, the slide bar is connected with the top syringe needle through lifting unit. Further, opposite ends of the first springs are connected with opposite sides of the limiting block, and opposite ends of the first springs are connected with the inner wall of the base. Further, the bottom of second spring links to each other with the inner wall of sleeve, the top of second spring links to each other with the bottom of slide bar. Further, through holes are formed in the top end of the base, corresponding to the bottom ends of the butt joint rods, and the size of the through holes is matched with that of the butt joint rods. Further, the lifting assembly comprises a lifting rod which is positioned on the inner wall of the sliding rod and is in sliding connection, a toothed plate is fixedly connected to the outer wall of the front side of the lifting rod, a protection box is fixedly connected to the outer wall of the front side of the sliding rod, a rotating handle is rotatably connected to the inner wall of the front side of the protection box, a worm is fixedly connected to the rear end of the rotating handle, a worm wheel is connected to the outer wall of the worm in a meshed mode, a rotating shaft is fixedly connected to the inner wall of the worm wheel, a gear is fixedly connected to the outer wall of the rotating shaft, and the top end of the lifting rod is fixedly connected to the thimble head. Further, the outer wall of the rotating shaft is rotatably connected to the inner wall of the protection box, and the toothed plate is in meshed connection with the gear. Further, the outer wall of the rotating shaft is rotationally connected to the inner wall of the protection box, and the outer wall of the worm is rotationally connected to the inner wall of the protection box. The utility model has the following beneficial effects: 1. According to the utility model, through the inclined plane guiding and spring automatic resetting structure of the pull rod linkage limiting block, the sleeve and the base can be quickly assembled and disassembled without tools, the whole thimble replacing process is greatly simplified, the die maintenance efficiency is remarkably improved, the modular design ensures that each part is firmly connected and conveniently disassembled, the quick positioning and the replacement are convenient when the thimble is worn or has a fault, the downtime is effectively reduced, and the maintenance cost is reduced. 2. According to the utility model, the height of the ejection needle head can be flexibly a