Die-casting die core side face needle sleeve quick-changing structure

Abstract

The utility model discloses a die-casting die core side needle sleeve quick-change structure, which comprises a needle sleeve pressing plate body, a quick-change support pillar, a quick-change pillar pressing plate and a needle sleeve, one end of the needle sleeve pressing plate body is in threaded connection with one end of the quick-change support pillar, the other end of the needle sleeve pressing plate body is connected with the needle sleeve, the other end of the quick-change support pillar is connected with the quick-change pillar pressing plate, and the quick-change pillar pressing plate is connected with the quick-change pillar pressing plate. The quick-change column pressing plate is provided with a screw through hole and is connected with the formwork main plate piece. The problem that the needle sleeve cannot be quickly replaced at the easy-to-wear position on the side surface of the mold core is effectively solved, so that the mold failure rate is reduced, and the mold cost is reduced.

Description

Technical Field

[0001] The utility model relates to a die-casting mold, in particular to a needle sleeve quick-changing structure on the side of a die core of the die-casting mold. Background Art

[0002] The die-casting mold molding position is complex, and it is often encountered that the slider pin fits on the mold core. The long-term movement of the slider pin and the mold core can easily cause mold core wear and high cost of replacing the mold core.

[0003] Traditional quick-change structure:

[0004] Figure 1 Middle, 1', pressing plate, 2', top column, 3', mold core, 5', needle sleeve, 6', mold frame,

[0005] The traditional quick-change mechanism primarily houses the needle sleeve 5' within the mold core 3'. The quick-change process is accomplished by first removing the pressure plate 1', then removing the ejector pin 2', and then knocking the needle sleeve out from the front of the mold core 3'. This mechanism only works with needle sleeves that are traditionally inserted into the back of the mold core. For needle sleeves that require insertion from the side, the traditional quick-change mechanism will not work as expected.

[0006] Therefore, a needle sleeve needs to be made on the side of the mold core for the slider needle. However, it is found in production that the needle sleeve needs to be replaced frequently due to long-term wear and tear. Due to the special location, the conventional quick-change structure cannot meet the requirements. Therefore, a quick-change structure for the needle sleeve on the side of the mold core is urgently needed. Summary of the Invention

[0007] In order to solve the problem that the matching position of the slider needle and the mold core is worn out due to long-term movement, and the needle sleeve needs to be replaced frequently, a quick-change structure for the needle sleeve on the side of the die-casting mold core is provided.

[0008] The utility model provides the following technical solutions:

[0009] A quick-change structure for a needle sleeve on the side of a die-casting mold core comprises a needle sleeve pressure plate body, a quick-change ejector column, a quick-change column pressure plate and a needle sleeve. One end of the needle sleeve pressure plate body is threadedly connected to one end of the quick-change ejector column, the other end of the needle sleeve pressure plate body is connected to the needle sleeve, the other end of the quick-change ejector column is connected to the quick-change column pressure plate, and the quick-change column pressure plate is provided with a screw through hole and is connected to the main component of the mold frame.

[0010] Furthermore, the quick-change ejector pin is tapped at both ends, one end having internal threads and the other end having external threads, the external threads being connected to the needle sleeve pressure plate body, and the internal threads being used to connect screws during disassembly and assembly.

[0011] Furthermore, an internal threaded hole is provided at the top end of the needle sleeve pressing plate body, and the needle sleeve is installed in the internal threaded hole of the needle sleeve pressing plate body.

[0012] Furthermore, the needle sleeve pressing plate body is accommodated in a mold core, a needle sleeve pressing plate groove is provided in the mold core, and the needle sleeve pressing plate body and the needle sleeve are accommodated in the needle sleeve pressing plate groove.

[0013] Compared with the existing technology, the beneficial effect of the present invention is: a needle sleeve quick-change structure is added to the side of the mold core, and the specific structure is: needle sleeve, needle sleeve pressure plate, quick-change top column and quick-change column pressure plate, which effectively solves the problem that the needle sleeve at the easily worn position on the side of the mold core cannot be quickly replaced, thereby reducing the mold failure rate and reducing the mold cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of a traditional quick change.

[0015] Figure 2 It is a structural diagram of the present utility model.

[0016] Figure 3 It is the main view of the present utility model.

[0017] Figure 4 It is along Figure 3 Middle DD section view.

[0018] Figure 5 It is an enlarged schematic diagram of the quick-change ejector column of the utility model.

[0019] Figure 6 This is a schematic diagram of the relationship between the quick-change ejector post and the needle sleeve pressing plate body of the utility model.

[0020] In the figure: 1. Quick-change column pressure plate; 2. Quick-change ejector column, 21. Internal thread, 22. External thread; 3. Mold core, 31. Needle sleeve pressure plate groove; 4. Needle sleeve pressure plate body, 41. Internal threaded hole; 5. Needle sleeve; 6. Mold frame main board component. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 2-5 The utility model provides a quick-change structure for a needle sleeve on the side of a die-casting mold core, comprising a needle sleeve pressure plate body 4, a quick-change ejector column 2, a quick-change column pressure plate 1 and a needle sleeve 5. One end of the needle sleeve pressure plate body 4 is threadedly connected to one end of the quick-change ejector column 2, the other end of the needle sleeve pressure plate body 4 is connected to the needle sleeve 5, and the other end of the quick-change ejector column 2 is connected to the quick-change column pressure plate 1. The quick-change column pressure plate 1 is provided with a screw through hole and is connected to the mold frame main board component 6.

[0023] The quick-change ejector pin 2 has tapping at both ends, one end has internal threads 21 and the other end has external threads 22. The external threads 22 are connected to the needle sleeve pressing plate body 4, and the internal threads 21 are used to connect screws during disassembly and assembly, thereby facilitating disassembly and assembly.

[0024] An internal threaded hole 41 is provided at the top of the needle sheath pressing plate body 4 , and the needle sheath 5 is installed in the internal threaded hole 41 of the needle sheath pressing plate body 4 .

[0025] The needle sleeve pressing plate body 4 is accommodated in the mold core 3, and a needle sleeve pressing plate groove 31 is provided in the mold core 3. The needle sleeve pressing plate body 4 and the needle sleeve 5 are accommodated in the needle sleeve pressing plate groove 31. The shape and size of the needle sleeve 5 and the mold core 3 match each other and fit tightly.

[0026] The mold core and mold frame are made to avoid air gaps, and the mold frame is tapped for installing the quick-change column pressure plate.

[0027] Figure 6 As shown, by pulling the quick-change ejector pin 2, the needle sleeve pressing plate body 4 is raised (set), thereby achieving quick needle sleeve replacement. The present invention effectively solves the problem of needle sleeves being unable to be quickly replaced at the easily worn position on the side of the mold core, thereby reducing mold failure rate and mold cost.

[0028] This new design incorporates a quick-change needle sleeve mechanism on the side of the mold core, effectively resolving issues with needle sleeve replacement in specific locations. The quick-change mechanism comprises a needle sleeve, a needle sleeve pressure plate, a quick-change ejector post, and a quick-change post pressure plate. This new design not only facilitates the rapid replacement of easily worn parts, but also improves production efficiency and effectively reduces the risk of malfunctions.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-change needle sleeve structure for the die core side of a die-casting mold, characterized by: The invention comprises a needle sleeve pressure plate body (4), a quick-change top column (2), a quick-change column pressure plate (1) and a needle sleeve (5), wherein one end of the needle sleeve pressure plate body (4) is connected to one end of the quick-change top column (2) by a threaded connection, the other end of the needle sleeve pressure plate body (4) is connected to the needle sleeve (5), the other end of the quick-change top column (2) is connected to the quick-change column pressure plate (1), and the quick-change column pressure plate (1) is provided with a screw through hole and is connected to the mold base main component (6).

2. The die-casting mold core side needle sleeve quick-change structure according to claim 1, characterized in that: The quick-change top column (2) is tapped at both ends, one end has internal threads (21) and the other end has external threads (22), the external threads (22) are connected to the needle sleeve pressing plate body (4), and the internal threads (21) are used for connecting screws during disassembly and assembly.

3. The die-casting mold core side needle sleeve quick-change structure according to claim 1, characterized in that: An internal threaded hole (41) is provided at the top end of the needle sleeve pressing plate body (4), and the needle sleeve (5) is installed in the internal threaded hole (41) of the needle sleeve pressing plate body (4).

4. The die-casting mold core side needle sleeve quick-change structure according to claim 1, characterized in that: The needle sleeve pressure plate body (4) is accommodated in the mold core (3), and a needle sleeve pressure plate groove (31) is provided in the mold core (3). The needle sleeve pressure plate body (4) and the needle sleeve (5) are accommodated in the needle sleeve pressure plate groove (31).

Images