Quick feeding mechanism for die-casting machine

Abstract

The utility model relates to the technical field of die-casting machines, in particular to a quick feeding mechanism for a die-casting machine, which comprises an injection rod and a hydraulic rod, a sliding groove is arranged on the periphery of the injection rod, two groups of scrapers are slidably connected in the sliding groove, the peripheries of the scrapers are cambered surfaces, two sealing rings are fixedly connected on the inner sides of the scrapers, and the hydraulic rod is fixedly connected with the injection rod. A plurality of connecting grooves are formed in the inner wall of the sliding groove, and the sealing rings are connected into the connecting grooves in a sliding mode. The injection rod has the beneficial effects that the scraping plate is mounted on the periphery of the injection rod, the diameter of the scraping plate in the advancing direction is reduced, and the diameter of the scraping plate in the retreating direction is large, so that metal liquid on the inner wall of the feeding hole can be cleaned out when the injection rod retreats, a metal module cannot be formed on the inner wall of the feeding hole, the feeding stability and smoothness can be kept, and the service life of the injection rod is prolonged. And workers do not need to clean the interior of the feeding hole, so that the use economy of the feeding mechanism is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting machines, in particular to a fast feeding mechanism for a die-casting machine. Background Art

[0002] The die-casting machine is an industrial casting machine that casts molten metal into a mold under pressure, cools it and forms it, and then opens the mold to obtain a fixed metal casting. During the working process of the die-casting machine, pouring the molten metal into the melting cup is one of the necessary working processes of the die-casting machine. When adding molten metal, a feeding mechanism is required.

[0003] When the feeding mechanism in the prior art is used, the molten metal is generally guided from the furnace to the inside of the feeding hole, and then the molten metal is pushed into the die-casting mold cavity by moving the shooting rod, thereby completing the feeding step.

[0004] However, in actual use, after the molten metal is pushed into the die-casting mold cavity, there is still some uncooled molten metal remaining inside the feed hole. After long-term use, it will form small metal modules of varying shapes on the inner wall of the feed hole, which will not only affect the feeding of the die-casting machine, but also affect the smoothness and stability of the feeding, and also require workers to spend more time on cleaning and maintenance, making the practicality and economy of the feeding mechanism low. Utility Model Content

[0005] The purpose of the utility model is to provide a fast feeding mechanism for a die-casting machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fast feeding mechanism for a die-casting machine, comprising a shooting rod and a hydraulic rod, the outer periphery of the shooting rod is provided with a slide groove, the interior of the slide groove is slidably connected with two groups of scrapers, the outer periphery of the scraper is an arc surface, the inner side of the scraper is fixedly connected with two sealing rings, the inner wall of the slide groove is provided with a plurality of connecting grooves, the sealing ring is slidably connected inside the connecting groove, a sleeve is fixedly connected to the right side of the shooting rod, and a hydraulic rod is inserted into the right end of the sleeve.

[0007] Preferably, a plurality of mounting grooves are provided inside the shooting rod, a spring is fixedly connected to the inner wall of the mounting groove, the other end of the spring is fixedly connected to a limiting block, the end of the limiting block away from the spring is fixedly connected to a push rod, and the push rod is fixedly connected to the scraper.

[0008] Preferably, an insert rod is slidably connected to the inner upper side of the sleeve, and the insert rod passes through the hydraulic rod, the top end of the insert rod is fixedly connected to a pull block, a plurality of picking grooves are provided on the outer lower side of the pull block, a threaded groove is provided inside the insert rod, a threaded rod is threadedly connected to the inner side of the threaded groove, and a turntable is fixedly connected to the bottom end of the threaded rod.

[0009] Preferably, three scrapers form a group, and the two groups of scrapers are staggered, and the diameter of the left side of the scraper is smaller than that of the right side.

[0010] Preferably, the limit block is slidably connected inside the mounting groove, and the mounting groove is communicated with the sliding groove.

[0011] Preferably, the push rod matches the scraper, and the push rod is slidably connected inside the mounting groove.

[0012] Preferably, the threaded rod is movably connected to the interior of the sleeve, the bottom end of the pull block fits with the upper side of the sleeve, and the top end of the turntable fits with the lower side of the sleeve.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model proposes a fast feeding mechanism for a die-casting machine. A scraper is installed on the outer periphery of a shooting rod, and the diameter of the scraper in the forward direction is reduced, while the diameter in the backward direction is larger, so that the shooting rod can clean out the metal liquid on the inner wall of the feed hole when retreating, so that no metal module is formed on the inner wall of the feed hole, thereby not only maintaining the stability and smoothness of the feeding, but also eliminating the need for workers to clean the inside of the feed hole, thereby making the feeding mechanism more economical to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a top view of the utility model;

[0017] Figure 3 For this utility model Figure 2 Structural cross-section at AA in the middle;

[0018] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram of the scraper structure of the utility model;

[0020] Figure 6 For this utility model Figure 3 Enlarged view of point B in the middle.

[0021] In the figure: 1. shooting rod; 2. slide groove; 3. scraper; 4. sealing ring; 5. connecting groove; 6. sleeve; 7. hydraulic rod; 8. mounting groove; 9. spring; 10. limit block; 11. push rod; 12. insert rod; 13. pull block; 14. take-up groove; 15. threaded groove; 16. threaded rod; 17. turntable. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0023] Embodiment 1

[0024] See also Figures 1 to 6 The utility model provides a technical solution: a fast feeding mechanism for a die-casting machine, including a shooting rod 1 and a hydraulic rod 7. A chute 2 is provided on the outer periphery of the shooting rod 1. Two groups of scrapers 3 are slidably connected inside the chute 2. The chute 2 limits the scrapers 3 so that the scrapers 3 can slide smoothly. Three scrapers 3 form a group. The two groups of scrapers 3 are staggered and are used to scrape the metal liquid comprehensively. The outer periphery of the scraper 3 is an arc surface. The diameter of the left side of the scraper 3 is smaller than that of the right side. Therefore, when the shooting rod 1 squeezes the metal liquid, the metal liquid can move along the arc surface of the scraper 3, thereby preventing it from sliding. When the shooting rod 1 moves in the opposite direction, the scraper 3 is able to scrape the molten metal. Two sealing rings 4 are fixedly connected to the inner side of the scraper 3. The sealing ring 4 is used to improve the stability of the scraper 3. A plurality of connecting grooves 5 are provided on the inner wall of the slide 2. The sealing ring 4 is slidably connected to the inside of the connecting groove 5. The connecting groove 5 limits the sealing ring 4 inside, so that the sealing ring 4 will not deviate when moving. A sleeve 6 is fixedly connected to the right side of the shooting rod 1. A hydraulic rod 7 is inserted into the right end of the sleeve 6, so that the shooting rod 1 as a whole can be conveniently installed and disassembled, so that the worn shooting rod 1 can be conveniently replaced.

[0025] When the shooting rod 1 is feeding the molten metal, the shooting rod 1 is able to move to the left, thereby enabling the shooting rod 1 to drive the scraper 3 to move to the left. At this time, when the shooting rod 1 moves to the right, the larger diameter portion of the scraper 3 is able to scrape and clean the molten metal attached to the inner wall of the feed hole to the right, and since the scrapers 3 are staggered, the scrapers 3 are able to clean the molten metal attached to the inner wall of the feed hole, so that the molten metal will not form a metal module on the inner wall of the feed hole, thereby not only maintaining the stability and smoothness of the feeding, but also eliminating the need for workers to clean the inside of the feed hole, thereby making the feeding mechanism more economical to use.

[0026] Embodiment 2

[0027] On the basis of Example 1, in order to improve the cleaning effect, a plurality of mounting grooves 8 are opened inside the shooting rod 1, and the mounting grooves 8 are connected with the slide groove 2, so that the push rod 11 can enter the slide groove 2, and the inner wall of the mounting groove 8 is fixedly connected with a spring 9, and the other end of the spring 9 is fixedly connected with a limit block 10, and the limit block 10 is slidably connected inside the mounting groove 8. The mounting groove 8 limits the limit block 10, so that the limit block 10 can slide stably, and the end of the limit block 10 away from the spring 9 is fixedly connected with a push rod 11, and the push rod 11 is fixedly connected to the scraper 3, and the push rod 11 matches the scraper 3. The push rod 11 is slidably connected inside the mounting groove 8, so that the push rod 11 will not deviate when moving.

[0028] When the shooting rod 1 slides into the feed hole, the curved surface of the scraper 3 can slide against the inner wall of the feed hole, so that the scraper 3 can slide inward, and the scraper 3 can push the push rod 11 to move inward, so that the push rod 11 can deform by pushing the limit block 10 to squeeze the spring 9, and then when the spring 9 makes a reset movement, the spring 9 can push the limit block 10 to move outward, so that the limit block 10 can push the scraper 3 to fit closely with the inner wall of the feed hole through the push rod 11, so that the scraper 3 can clean the inner wall of the feed hole more neatly.

[0029] Embodiment 3

[0030] On the basis of the second embodiment, in order to realize the convenient replacement of the shooting rod 1 and the scraper 3, and to make the installation of the shooting rod 1 more stable, the upper side of the inner part of the sleeve 6 is slidably connected with the plug rod 12, and the sleeve 6 limits the plug rod 12, so that the plug rod 12 will not deviate when moving, and the plug rod 12 passes through the hydraulic rod 7, and the outside of the plug rod 12 is a rectangular block, so that the hydraulic rod 7 can be stably engaged, and the top of the plug rod 12 is fixedly connected with a pull block 13, and the bottom end of the pull block 13 is in contact with the upper side of the sleeve 6, so that the placement of the pull block 13 is more stable, and a plurality of taking grooves 14 are provided on the lower side of the outer periphery of the pull block 13. The taking groove 14 is used to conveniently pull the pull block 13 and the insertion rod 12, making it easier to connect and disconnect the insertion rod 12 from the hydraulic rod 7. A threaded groove 15 is provided inside the insertion rod 12, and the internal thread of the threaded groove 15 is connected to a threaded rod 16, so that the insertion rod 12 can be limited for a second time. The threaded rod 16 is movably connected to the inside of the sleeve 6, and the sleeve 6 limits the threaded rod 16, so that the threaded rod 16 can be stably and conveniently placed on the inner wall of the sleeve 6. The bottom end of the threaded rod 16 is fixedly connected to a turntable 17, and the top end of the turntable 17 fits against the lower side of the sleeve 6, so that the turntable 17 is placed more stably.

[0031] When it is necessary to remove the shooting rod 1 from the hydraulic rod 7, the turntable 17 is rotated so that the turntable 17 drives the threaded rod 16 to rotate inside the insertion rod 12, so that the threaded rod 16 can be disengaged from the inside of the insertion rod 12, thereby pulling the pull block 13 upward, so that the pull block 13 can drive the insertion rod 12 to disengage from the hydraulic rod 7 and the inside of the sleeve 6, and then pull the hydraulic rod 7 to the right, so that the hydraulic rod 7 can be disengaged from the inside of the sleeve 6, so that the shooting rod 1 can be conveniently disassembled. When it is necessary to install the shooting rod 1 on the hydraulic rod 7, the hydraulic rod 7 is inserted into the inside of the sleeve 6, and then the insertion rod 12 is inserted into the inside of the sleeve 6, and the insertion rod 12 passes through the hydraulic rod 7, and then the threaded rod 16 is screwed into the inside of the thread groove 15, so that the insertion rod 12 can be stably installed inside the sleeve 6, so that the connection between the shooting rod 1 and the hydraulic rod 7 is more stable, so that the shooting rod 1 can stably feed the die-casting machine.

[0032] In actual use, by inserting the hydraulic rod 7 into the interior of the sleeve 6, and then inserting the insertion rod 12 into the interior of the sleeve 6, and passing the insertion rod 12 through the hydraulic rod 7, and then screwing the threaded rod 16 into the interior of the threaded groove 15, the insertion rod 12 can be stably installed in the interior of the sleeve 6, so that the connection between the shooting rod 1 and the hydraulic rod 7 is more stable, so that the shooting rod 1 can stably feed the die-casting machine, and then when the shooting rod 1 feeds the metal liquid, the shooting rod 1 can move to the left, so that the shooting rod 1 can drive the scraper 3 to move to the left, and when the shooting rod 1 slides into the feed hole, the curved surface of the scraper 3 can slide against the inner wall of the feed hole, so that the scraper 3 can slide inward, and then the scraper 3 can push the push rod 11 to move inward, so that the push rod 11 can pass through the push limit The block 10 squeezes the spring 9 to produce deformation, and then when the spring 9 makes a reset movement, the spring 9 is able to push the limit block 10 to move outward, so that the limit block 10 can push the scraper 3 to fit closely with the inner wall of the feed hole through the push rod 11, so that the scraper 3 can clean the inner wall of the feed hole more neatly. At this time, when the shooting rod 1 moves to the right, the larger diameter of the scraper 3 is able to scrape the metal liquid attached to the inner wall of the feed hole to the right, and because the scrapers 3 are staggered, the scrapers 3 are able to clean the metal liquid attached to the inner wall of the feed hole, so that the metal liquid will not form a metal module on the inner wall of the feed hole, which can not only maintain the stability and smoothness of the feeding, but also make the workers do not need to clean the inside of the feed hole, so that the use of the feeding mechanism is more economical.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fast feeding mechanism for a die casting machine, comprising a shooting rod (1) and a hydraulic rod (7), characterized in that: The outer circumference of the shooting rod (1) is provided with a slide groove (2), and two groups of scrapers (3) are slidably connected inside the slide groove (2). The outer circumference of the scraper (3) is an arc surface, and two sealing rings (4) are fixedly connected to the inner side of the scraper (3). The inner wall of the slide groove (2) is provided with a plurality of connecting grooves (5), and the sealing rings (4) are slidably connected inside the connecting grooves (5). The right side of the shooting rod (1) is fixedly connected with a sleeve (6), and a hydraulic rod (7) is inserted into the right end of the sleeve (6).

2. A fast feeding mechanism for a die casting machine according to claim 1, characterized in that: A plurality of mounting grooves (8) are provided inside the shooting rod (1), a spring (9) is fixedly connected to the inner wall of the mounting groove (8), the other end of the spring (9) is fixedly connected to a limit block (10), the end of the limit block (10) away from the spring (9) is fixedly connected to a push rod (11), and the push rod (11) is fixedly connected to the scraper (3).

3. A fast feeding mechanism for a die casting machine according to claim 2, characterized in that: The upper inner side of the sleeve (6) is slidably connected with an insertion rod (12), and the insertion rod (12) passes through the hydraulic rod (7). The top end of the insertion rod (12) is fixedly connected with a pull block (13), and the lower outer side of the pull block (13) is provided with a plurality of picking grooves (14). The interior of the insertion rod (12) is provided with a threaded groove (15), and the inner thread of the threaded groove (15) is threadedly connected with a threaded rod (16), and the bottom end of the threaded rod (16) is fixedly connected with a turntable (17).

4. The fast feeding mechanism for a die casting machine according to claim 1, characterized in that: The three scrapers (3) form a group, and the two groups of scrapers (3) are staggeredly distributed, and the diameter of the left side of the scraper (3) is smaller than that of the right side.

5. The fast feeding mechanism for a die casting machine according to claim 2, characterized in that: The limit block (10) is slidably connected inside the mounting groove (8), and the mounting groove (8) is connected to the slide groove (2).

6. A fast feeding mechanism for a die casting machine according to claim 2, characterized in that: The push rod (11) matches the scraper (3), and the push rod (11) is slidably connected inside the mounting groove (8).

7. The fast feeding mechanism for a die casting machine according to claim 3, characterized in that: The threaded rod (16) is movably connected to the inside of the sleeve (6), the bottom end of the pull block (13) is in contact with the upper side of the sleeve (6), and the top end of the rotating disk (17) is in contact with the lower side of the sleeve (6).

Images