Clamp special for hot runner valve needle

Abstract

The utility model provides a special fixture for a hot runner valve needle, and relates to the field of hot runners. The clamp special for the hot runner valve needle comprises an outer ring, the valve needle is inserted into the outer ring, a fixing block is fixedly connected to the lower surface of the valve needle, a blocking cover is clamped to the outer surface of the fixing block, an open groove is formed in the left side of the outer ring, and a movable block is movably connected into the open groove; the left side of the moving block is fixedly connected with the right side of a blocking cover, a limiting block is clamped in the open groove, an auxiliary hole is formed in the front face of the limiting block, and the bottom of the limiting block is in lap joint with the inner bottom wall of the open groove. According to the clamp special for the hot runner valve needle, through mutual cooperation of the fixing block, the blocking cover, the fastening groove, the fastening block, an auxiliary hole, a limiting block, a spring, a movable block and an open groove, an existing mounting structure is changed, so that the convenience of replacing the valve needle is improved, and the problem that an existing clamp special for the hot runner valve needle is not convenient enough when the valve needle is replaced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runners, in particular to a special clamp for a hot runner valve needle. Background Art

[0002] The valve needle in the needle valve system has high hardness, high toughness, surface nitriding treatment, long service life, good strength, and is particularly suitable for plastic parts projects with glass fiber. In actual applications, the valve needle requires a special fixture for installation. The current hot runner valve needle special fixture is not convenient enough when replacing the valve needle. Utility Model Content

[0003] The utility model aims to provide a special clamp for a hot runner valve needle, which solves the problem that the current special clamp for a hot runner valve needle is not convenient when replacing the valve needle.

[0004] Technical Solution

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a special fixture for a hot runner valve needle, comprising an outer ring, a valve needle is inserted into the interior of the outer ring, a fixed block is fixedly connected to the lower surface of the valve needle, a blocking cover is clamped on the outer surface of the fixed block, a groove is provided on the left side of the outer ring, a moving block is movably connected to the interior of the groove, the left side of the moving block is fixedly connected to the right side of the blocking cover, and a limiting block is clamped inside the groove.

[0006] Furthermore, an auxiliary hole is provided on the front side of the limit block.

[0007] Furthermore, the bottom of the limit block overlaps with the inner bottom wall of the slot, and the top of the limit block overlaps with the bottom of the blocking cover.

[0008] Furthermore, a spring is fixedly connected to the lower surface of the moving block, and the bottom end of the spring is fixedly connected to the inner bottom wall of the slot.

[0009] Furthermore, a fastening groove is provided on the lower surface of the fixing block, a fastening block is clamped inside the fastening groove, and the lower surface of the fastening block is fixedly connected to the inner wall of the blocking cover.

[0010] The utility model provides a special fixture for hot runner valve needles, which has the following beneficial effects:

[0011] The special fixture for hot runner valve needles changes the existing installation structure through the mutual cooperation between the fixed block, the blocking cover, the fastening groove, the fastening block, the auxiliary hole, the limit block, the spring, the movable block and the slot, thereby increasing the convenience of replacing the valve needle and solving the problem that the current special fixture for hot runner valve needles is not convenient when replacing the valve needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a front view of the structure of the utility model.

[0014] Among them, 1 is an outer ring, 2 is a valve needle, 3 is a fixed block, 4 is a blocking cover, 5 is a fastening groove, 6 is a fastening block, 7 is an auxiliary hole, 8 is a limit block, 9 is a spring, 10 is a moving block, and 11 is a slot. DETAILED DESCRIPTION

[0015] like Figure 1-2 As shown, the embodiment of the utility model provides a special clamp for hot runner valve needle, including an outer ring 1, a valve needle 2 is inserted inside the outer ring 1, a fixed block 3 is fixedly connected to the lower surface of the valve needle 2, and a blocking cover 4 is clamped on the outer surface of the fixed block 3. A slot 11 is provided on the left side of the outer ring 1, and a moving block 10 is movably connected inside the slot 11. A spring 9 is fixedly connected to the lower surface of the moving block 10, and the bottom end of the spring 9 is fixedly connected to the inner bottom wall of the slot 11. A fastening groove 5 is provided on the lower surface of the fixed block 3, and a fastening block 6 is clamped inside the fastening groove 5. The lower surface of the fastening block 6 is fixedly connected to the inner wall of the blocking cover 4, the left side of the moving block 10 is fixedly connected to the right side of the blocking cover 4, and a limiting block 8 is clamped inside the slot 11. An auxiliary hole 7 is provided on the front of the limiting block 8. The bottom of the limiting block 8 overlaps with the inner bottom wall of the slot 11, and the top of the limiting block 8 overlaps with the bottom of the blocking cover 4.

[0016] Working principle: During installation, push the two blocking covers 4 in opposite directions, insert the valve needle 2 into the inner part of the outer ring 1, and then release the two blocking covers 4. At this time, the spring 9 will push the two blocking covers 4 to reset, and the blocking covers 4 will be stuck on the outside of the fixing block 3 to position the valve needle 2. At the same time, the fastening block 6 will also be stuck in the inside of the fastening groove 5 for further reinforcement. Finally, the limit block 8 is stuck in the inside of the slot 11 to limit the blocking cover 4. During disassembly, take out the limit block 8, press the two blocking covers 4 in opposite directions, and then the valve needle 2 can be removed.

Claims

1. A special fixture for a hot runner valve needle, comprising an outer ring (1), characterized in that: A valve needle (2) is inserted into the interior of the outer ring (1), a fixed block (3) is fixedly connected to the lower surface of the valve needle (2), a blocking cover (4) is clamped on the outer surface of the fixed block (3), a slot (11) is provided on the left side of the outer ring (1), a moving block (10) is movably connected inside the slot (11), the left side of the moving block (10) is fixedly connected to the right side of the blocking cover (4), and a limiting block (8) is clamped inside the slot (11).

2. A hot runner valve needle special fixture according to claim 1, characterized in that: An auxiliary hole (7) is provided on the front side of the limiting block (8).

3. The hot runner valve needle fixture according to claim 1, characterized in that: The bottom of the limit block (8) overlaps with the inner bottom wall of the slot (11), and the top of the limit block (8) overlaps with the bottom of the blocking cover (4).

4. The hot runner valve needle fixture according to claim 1, characterized in that: A spring (9) is fixedly connected to the lower surface of the moving block (10), and the bottom end of the spring (9) is fixedly connected to the inner bottom wall of the slot (11).

5. The hot runner valve needle fixture according to claim 1, characterized in that: A fastening groove (5) is provided on the lower surface of the fixing block (3), a fastening block (6) is clamped inside the fastening groove (5), and the lower surface of the fastening block (6) is fixedly connected to the inner wall of the blocking cover (4).

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