Material cake snapping device of die-casting machine

Abstract

A material cake snapping device of a die-casting machine comprises a charging barrel, an injection rod and an injection punch, the injection rod and the injection punch are connected with each other, the injection rod and the injection punch move on an inner cavity of the charging barrel in a reciprocating circulation mode, an inwards-concave hook groove is formed in the injection punch, when the injection rod and the injection punch move in the first direction, materials in the charging barrel are subjected to die-casting forming to form a product, and when the injection rod and the injection punch move in the second direction, the inwards-concave hook groove is communicated with the inwards-concave hook groove. When the injection rod and the injection punch do reset motion in the second direction, the product and the material cake are snapped and separated, and the injection punch drives the material cake to move in the second direction and reset to the initial position. The injection punch is provided with the concave hook groove, the material barrel is provided with the ejector rod moving up and down below the initial position of the injection punch, the concave hook groove is combined with the material cake, and when the injection punch is reset, the material cake and the product are snapped, so that separation of the material cake and the product is achieved, and when the injection punch is reset to the initial position, the material cake and the product are separated. The lifting oil cylinder below the charging barrel drives the ejector rod to separate the material cake from the injection punch, and automatic separation of the material cake and a product is achieved through the structure.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting machines, and particularly to a device for breaking the slug of a die-casting machine. Background Art

[0002] With the continuous evolution and development of die-cast products in enterprises, die-casting molding enterprises will strive to improve the production efficiency of products, so as to achieve the purpose of cost reduction and efficiency increase; especially at present, the labor cost is getting higher and higher, and the die-casting production environment is a special operation environment, which puts more and more pressure on small and medium-sized die-casting enterprises; therefore, it is necessary to optimize the die-casting machine to adopt an automated method during the injection process to reduce the labor intensity of employees and improve the production efficiency at the same time; currently, in the market, for the slugs formed during the die-casting product process, when the mold is opened, the whole product is taken out from the mold end, and then the product and the slug are separated manually or with the help of other tools, resulting in low efficiency or the need to invest in other equipment.

[0003] Therefore, it is necessary to make further improvements. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for breaking the slug of a die-casting machine with simple structure, reliable performance, high production efficiency, low manufacturing cost and strong practicability, so as to overcome the deficiencies of the prior art.

[0005] A device for breaking the slug of a die-casting machine designed according to this purpose is characterized in that: it includes a barrel, a shot sleeve and a shot piston. The shot sleeve and the shot piston are connected to each other, and the shot sleeve and the shot piston reciprocate cyclically in the inner cavity of the barrel. An inner concave hook groove for hooking the slug is provided on the shot piston. When the shot sleeve and the shot piston move in the first direction, the material in the barrel is die-cast into a product. When the shot sleeve and the shot piston move in the second direction for resetting, the product and the slug are broken and separated, and the shot piston drives the slug to move in the second direction and reset to the initial position.

[0006] A lifting rod that moves up and down is provided below the initial position of the shot piston in the barrel. When the lifting rod moves upward, it pushes the slug out of the inner concave hook groove, and when the lifting rod moves downward, it resets.

[0007] A guiding hole is provided on the barrel at the initial position of the shot piston. When the lifting rod moves up and down, it passes through the guiding hole and the inner concave hook groove.

[0008] A feeding port is provided on the barrel at the initial position of the shot piston. The guiding hole, the inner concave hook groove and the feeding port are arranged in alignment. When the lifting rod moves upward, it pushes the slug out of the inner concave hook groove, and the lifting rod pushes the slug out of the barrel through the feeding port.

[0009] A driver is provided below the lifting rod. The driver is drivingly connected to the lifting rod, and the driver drives the lifting rod to move up and down.

[0010] The concave groove is provided with an opening and an inner opening, the width of the inner opening is greater than that of the opening, and the width of the inner opening gradually increases from bottom to top.

[0011] One end of the injection rod is connected to the injection punch, and the other end is connected to the injection cylinder.

[0012] The driver is a lifting cylinder, and a sensor for detecting the speed and force of the ejector rod is arranged on the lifting cylinder.

[0013] One end of the barrel is arranged on the mold.

[0014] The injection rod, the injection punch, the barrel and the feed channel of the mold are concentrically arranged.

[0015] The device for breaking the slug of the die-casting machine of the present invention is provided with a concave groove for hooking the slug (slug) on the injection punch. A vertically movable ejector rod is arranged below the initial position of the injection punch in the barrel. When the concave groove is combined with the slug, when the injection punch returns to its original position, the slug is broken from the product, thereby realizing the separation of the slug and the product. When the injection punch returns to the initial position, the ejector rod below the barrel is driven by a lifting cylinder to separate the slug from the injection punch. This structure realizes the automatic separation of the slug and the product, without the need to separate the slug and the product manually or with the help of other tools and equipment, solves the deficiencies of the prior art, improves the separation efficiency, and further improves the production efficiency of the die-casting machine, while reducing the labor cost. Description of the Drawings

[0016] Figure 1 It is a cross-sectional view of the device when the injection punch is in the initial position in an embodiment of the present invention.

[0017] Figure 2 It is a cross-sectional view of the device when the injection punch moves in the first direction in an embodiment of the present invention.

[0018] Figure 3 It is a cross-sectional view of the device when the injection punch returns to the initial position in an embodiment of the present invention.

[0019] Figure 4 It is a cross-sectional view of the device when the ejector rod ejects the slug in an embodiment of the present invention.

[0020] Figure 5 It is a cross-sectional view of the barrel in an embodiment of the present invention.

[0021] Figure 6 It is a front view of the injection punch in an embodiment of the present invention.

[0022] Figure 7 It is a cross-sectional view of the injection punch in an embodiment of the present invention.

[0023] Figure 8 It is a schematic diagram of the overall structure of the product and the slug in an embodiment of the present invention. Detailed implementation manners

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Refer to Figures 1-8 , the slug breaking device of this die-casting machine includes a barrel 1, a shot rod 2 and a shot punch 3. The shot rod 2 and the shot punch 3 are connected to each other. The shot rod 2 and the shot punch 3 reciprocate in the inner cavity 4 of the barrel 1. An inner concave hook groove 6 for hooking the slug 5 is provided at the end of the shot punch 3. When the shot rod 2 and the shot punch 3 move in the first direction A, the material (molten metal) in the barrel 1 is die-cast into a product 7. When the shot rod 2 and the shot punch 3 move back in the second direction B, the product 7 and the slug 5 are broken and separated, and the shot punch 3 drives the slug 5 to move back in the second direction B to the initial position C; one end of the shot rod 2 is connected to the shot punch 3 and the other end is connected to a shot cylinder, so that the shot punch 3 realizes the reciprocating cycle of injection and reset in the barrel 1.

[0026] A lifting rod 8 that moves up and down is provided below the initial position C of the shot punch 3 on the barrel 1. When the lifting rod 8 moves upward, the slug 5 is pushed out of the inner concave hook groove 6, and when the lifting rod 8 moves downward, it resets.

[0027] A guide hole 9 is provided on the barrel 1. The guide hole 9 is located at the initial position C of the shot punch 3. When the lifting rod 8 moves up and down, it passes through the guide hole 9 and the inner concave hook groove 6. The guide hole 9 restricts the lifting rod 8 to only move up and down.

[0028] A feed inlet 14 is provided on the barrel 1. The feed inlet 14 is located at the initial position C of the shot punch 3. The guide hole 9, the inner concave hook groove 6 and the feed inlet 14 are arranged in alignment. When the lifting rod 8 moves upward, the slug 5 is pushed out of the inner concave hook groove 6, and the lifting rod 8 pushes the slug 5 out of the barrel 1 through the feed inlet 14, and then the slug 5 can be recycled.

[0029] A driver is provided below the lifting rod 8. The driver is a lifting cylinder. The driver is drivingly connected to the lifting rod 8. The lifting cylinder drives the lifting rod 8 to move up and down; the lifting cylinder provides the lifting power for the lifting rod 8. A sensor for detecting the speed and force of the lifting rod 8 is provided on the lifting cylinder. By detecting and adjusting the speed and force of the lifting rod 8, different speeds and force magnitudes of the lifting rod 8 are realized.

[0030] An opening 10 and an inner opening 11 are provided on the inner concave hook groove 6. The width of the inner opening 11 is greater than the width of the opening 10. The width of the inner opening 11 gradually increases from bottom to top. The inner concave hook groove 6 is in a hook shape; this structure enables the inner concave hook groove 6 to hook the slug 5, so that the shot punch 3 and the slug 7 in the formed product are integrated. Through the reciprocating movement of the shot punch 3, the separation of the product 7 and the slug 5 is realized.

[0031] Under the action of an external force (the force of the injection cylinder), the injection punch 3 injects the molten metal in the barrel 1 into the mold cavity for molding, so that the molded liquid metal also fills the injection punch 3 and the concave groove 6 to form a slug. The injection punch 3 with a concave structure is combined with the slug with a convex structure and placed in the inner cavity 4 of the barrel 1. When the injection punch 3 returns to its original position, the slug 5 is broken away from the product 4, thus realizing the separation of the slug 5 from the product. When the injection punch 3 returns to its initial position, the slug 5 is separated from the injection punch 3 by the ejector rod 8 of the lifting cylinder to realize the separation of the product 7 from the slug 5.

[0032] The barrel 1 is arranged at the center of the mold or other suitable positions of the mold. Under the action of the injection rod 2, the injection punch 3 makes a reciprocating injection movement left and right in the inner cavity 4 of the barrel 1 to realize die-casting the metal solution in the barrel 1 into a product.

[0033] A threaded connection part is arranged between the injection rod 2 and the injection punch 3. The injection rod 2 and the injection punch 3 are fixedly connected to each other through the threaded connection part. The threaded connection part includes an internal thread arranged at one end of the injection punch 3 and an external thread arranged at one end of the injection rod 2, and the internal thread is connected to the external thread.

[0034] The injection punch 3 die-casts the metal solution in the barrel 1 into a product 7 under the action of the injection rod 2. During die-casting, the product 7 and the slug 5 are connected into a whole through a small formed metal cylinder.

[0035] When the injection rod 2 moves back to the second direction B, it drives the injection punch 3 to move back at the same time. When the injection punch 3 moves back, the slug 5 in the concave groove 6 of the injection punch 3 breaks the small formed metal cylinder between the product 7 and the slug 5. When the injection punch 3 returns to the initial position C, the product 7 remains in the mold 12 and is taken out after the mold is opened.

[0036] One end of the barrel 1 is arranged on the mold 12.

[0037] The injection rod 2, the injection punch 3, the barrel 1 and the feed channel 13 of the mold 12 are concentrically arranged.

[0038] The above is the preferred solution of the present invention, which shows and describes the basic principle, 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 principle 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 all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting machine biscuit breaking device, characterized in that: The invention comprises a barrel (1), an injection rod (2) and an injection punch (3), wherein the injection rod (2) and the injection punch (3) are connected to each other, and the injection rod (2) and the injection punch (3) reciprocate on the inner cavity (4) of the barrel (1), and the injection punch (3) is provided with an inner concave hook groove (6) for hooking a material cake (5). When the injection rod (2) and the injection punch (3) move in a first direction (A), the material in the barrel (1) is die-casted into a product (7), and when the injection rod (2) and the injection punch (3) return to a second direction (B), the product (7) and the material cake (5) are pulled apart and separated, and the injection punch (3) drives the material cake (5) to move in the second direction (B) and return to an initial position (C).

2. The die casting machine biscuit breaking device according to claim 1 is characterized in that: The barrel (1) is provided with a push rod (8) movable up and down below the initial position (C) of the injection punch (3). When the push rod (8) moves upward, the material cake (5) is pushed out of the inner concave hook groove (6), and when the push rod (8) moves downward, it is reset.

3. The die casting machine biscuit breaking device according to claim 2, characterized in that: A guide hole (9) is provided on the barrel (1), the guide hole (9) is located at the initial position (C) of the injection punch (3), and the ejector rod (8) passes through the guide hole (9) and the inner concave hook groove (6) when moving up and down.

4. The die casting machine biscuit breaking device according to claim 3 is characterized in that: The barrel (1) is provided with a feed opening (14), which is located at the initial position (C) of the injection punch (3). The guide hole (9), the inner concave hook groove (6) and the feed opening (14) are aligned and arranged. When the ejector rod (8) moves upward, the material cake (5) is ejected out of the inner concave hook groove (6), and the ejector rod (8) ejects the material cake (5) out of the barrel (1) through the feed opening (14).

5. The die casting machine biscuit breaking device according to claim 2, characterized in that: A driver is provided below the push rod (8), and the driver is connected to the push rod (8) to drive the push rod (8) to move up and down.

6. The die casting machine biscuit breaking device according to claim 1, characterized in that: The inner concave hook groove (6) is provided with an opening (10) and an inner opening (11), the width of the inner opening (11) is greater than the width of the opening (10), and the width of the inner opening (11) gradually increases from bottom to top.

7. The die casting machine biscuit breaking device according to claim 1, characterized in that: One end of the injection rod (2) is connected to the injection punch (3), and the other end is connected to the injection cylinder.

8. The die casting machine biscuit breaking device according to claim 5, characterized in that: The driver is a lifting cylinder, and a sensor for detecting the speed and force of the push rod (8) is arranged on the lifting cylinder.

9. The die casting machine biscuit breaking device according to claim 1, characterized in that: One end of the barrel (1) is arranged on the mold (12).

10. The die casting machine biscuit breaking device according to claim 9, characterized in that: The injection rod (2), the injection punch (3), the barrel (1) and the feed channel (13) of the mold (12) are concentrically arranged.

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