Hot runner valve needle driving structure for injection molding

Abstract

The utility model discloses a hot runner valve needle driving structure for injection molding, and relates to the technical field of valve needle driving. The device comprises a driving part, a plurality of annular plates are fixedly matched with one side of the driving part, an L-shaped plate is elastically and slidably matched with one end of the driving part, a U-shaped plate is fixedly matched with one end of the L-shaped plate, a plurality of positioning rods are fixedly matched with the interior of the U-shaped plate, and one end of each positioning rod is slidably matched with the interior of the corresponding annular plate. According to the utility model, through the arrangement of the positioning rod, one end of the positioning rod slides towards the direction of the valve needle body under the action of the U-shaped plate, and one end of the valve needle body is fixed and unfixed through one end of the positioning rod, so that the disassembly and assembly process of the valve needle body is more convenient, and the disassembly and assembly efficiency of the valve needle body is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve needle drive field, concretely relates to a hot runner valve needle drive structure for injection molding. BACKGROUND

[0002] In the hot runner mold system, for a mold multi-cavity injection molding, or complex shape injection molding, usually need to set up multiple gates, with multiple nozzles simultaneously pouring into the cavity.

[0003] Patent application with publication number CN212072802U discloses a kind of multi-valve needle driving device, and its specification paragraph 0035 discloses: valve needle assembly includes valve needle, valve needle fixed screw, valve needle connector and valve needle adjusting screw, valve needle is fixed on valve needle connector by valve needle fixed screw, valve needle connector is screwed on valve needle connecting block by valve needle adjusting screw, valve needle fixed screw is screwed on the lower end of valve needle connector, the central portion is provided with the through hole for valve needle needle head to pass through, valve needle connector is connected with valve needle adjusting screw by thread, valve needle connector and valve needle adjusting screw are all fixed on valve needle connecting block, so that when valve needle connecting block acts up and down, valve needle also acts up and down, when valve needle adjusting screw is screwed, valve needle connector will follow up and down movement, to realize the adjustment of valve needle connector, adjustment mode is convenient and fast, easy to operate;The setting of valve needle fixed screw is convenient for the installation and replacement of valve needle, and the fixing effect of valve needle is good, which helps to improve the sealing property when valve needle opens and closes pouring port.

[0004] But in actual application, one end of valve needle is positioned in the interior of valve needle connector under the action of valve needle fixed screw, because the number of valve needle is multiple, valve needle fixed screw needs to be taken down one by one to release the positioning of valve needle, which will affect the efficiency of valve needle disassembly.

[0005] Therefore, a hot runner valve needle drive structure for injection molding is proposed to solve the above-mentioned drawbacks. Utility model content

[0006] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a hot runner valve needle drive structure for injection molding.

[0007] To solve the above technical problems, the basic idea of the technical solution of the utility model is as follows:

[0008] A hot runner valve needle drive structure for injection molding includes a drive member, a plurality of annular plates are fixedly connected to one side of the drive member, an L-shaped plate is elastically and slidingly connected to one end of the drive member, a U-shaped plate is fixedly connected to one end of the L-shaped plate, a plurality of positioning rods are fixedly connected to the inside of the U-shaped plate, and one end of the positioning rod is slidingly connected to the inside of the annular plate.

[0009] A plurality of valve needle bodies, one end of the valve needle bodies is located inside the annular plate, and one end of the positioning rod is in clamping fit with one end of the valve needle bodies.

[0010] Optionally, one end of the driving member is provided with a guide groove, two guide holes in communication with the guide groove, and one end of the L-shaped plate is in sliding fit inside the guide groove.

[0011] Optionally, two guide rods are in fixed fit on one side of the L-shaped plate, and one end of the guide rods is in sliding fit inside the guide holes.

[0012] Optionally, two springs are in fixed fit between the side wall of the guide groove and one side of the L-shaped plate, and the springs are sleeved on the circumferential side of the guide rods.

[0013] Optionally, the outer side wall of the annular plate is provided with a through hole, and one end of the positioning rod is located inside the through hole.

[0014] Optionally, a plurality of connecting plates are in fixed fit inside the U-shaped plate, and one end of the positioning rod is in fixed fit on one side of the connecting plates.

[0015] Optionally, one end of the valve needle bodies is provided with a clamping groove, and one end of the positioning rod is in clamping fit with the clamping groove.

[0016] Optionally, two fixed blocks are in fixed fit on two sides of the driving member.

[0017] After the above technical scheme is adopted, the present application has the following advantages compared with the prior art, of course, any product implementing the present application does not necessarily need to achieve all the advantages described below:

[0018] The positioning rod is arranged, so that one end of the positioning rod slides towards the valve needle body under the action of the U-shaped plate, and the one end of the positioning rod is fixed to or released from the one end of the valve needle body, so that the disassembly and assembly of the valve needle body are more convenient, and the efficiency of the disassembly and assembly of the valve needle body is improved.

[0019] The guide hole is arranged, so that one end of the guide rod slides inside the guide hole under the action of the L-shaped plate, and the guide hole guides the sliding direction of the guide rod, so that the problem of inclination of the L-shaped plate during sliding is reduced, and the stability of the L-shaped plate during sliding is improved.

[0020] The specific embodiments of the present application will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings in the following description are only some embodiments, and other drawings can be obtained by those of ordinary skill in the art without creative labor on the basis of these drawings. In the drawings

[0022] In the drawings:

[0023] Figure 1 A perspective structural schematic view of an embodiment of the utility model;

[0024] Figure 2 A bottom view structural schematic view of an embodiment of the utility model;

[0025] Figure 3 A valve needle body structural schematic view of an embodiment of the utility model;

[0026] Figure 4 A cross section structural schematic view of an embodiment of the utility model.

[0027] In the drawings, the component list represented by each sign is as follows:

[0028] Driving piece 100, annular plate 101, through hole 102, U-shaped plate 103, connecting plate 104, positioning rod 105, L-shaped plate 106, guide rod 107, spring 108, guide groove 109, fixed block 110, guide hole 111, valve needle body 200, clamping groove 201.

[0029] It should be noted that these drawings and textual descriptions are not intended to limit the concept range of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] The utility model will be further described in detail in combination with the drawings.

[0031] Please refer to Figures 1-4 As shown in the drawings, a hot runner valve needle driving structure for injection molding is provided in the embodiment, which comprises a driving piece 100, a plurality of annular plates 101 are fixedly matched on one side of the driving piece 100, an L-shaped plate 106 is elastically and slidingly matched at one end of the driving piece 100, a U-shaped plate 103 is fixedly matched at one end of the L-shaped plate 106, a plurality of positioning rods 105 are fixedly matched in the inside of the U-shaped plate 103, and one end of the positioning rod 105 is slidingly matched in the inside of the annular plate 101.

[0032] A plurality of valve needle bodies 200, one end of the valve needle body 200 is located in the inside of the annular plate 101, and one end of the positioning rod 105 is clamped and matched with one end of the valve needle body 200.

[0033] Working principle:

[0034] First slide L-shaped plate 106, one end of L-shaped plate 106 from the inside of the drive piece 100, the other end of the L-shaped plate 106 drive U-shaped plate 103 in the bottom of the drive piece 100, U-shaped plate 103 drive one end of the positioning rod 105, one end of the positioning rod 105 to the valve needle body 200 positioning, and then take out the valve needle body 200 from the inside of the ring-shaped plate 101 can.

[0035] The positioning rod 105 is arranged, so that one end of the positioning rod 105 slides under the action of the U-shaped plate 103 towards the direction of the valve needle body 200, and is fixed and released to one end of the valve needle body 200 through one end of the positioning rod 105, so that the disassembly process of the valve needle body 200 is more convenient, and the disassembly efficiency of the valve needle body 200 is improved.

[0036] In order to make the L-shaped plate 106 of the embodiment slide on one side of the drive piece 100 more stable, the following structure is improved, as shown in Figures 1-4 One end of the drive piece 100 is provided with a guide groove 109, two guide holes 111 communicating with the guide groove 109, one end of the L-shaped plate 106 is slidably fitted in the inside of the guide groove 109, one side of the L-shaped plate 106 is fixedly fitted with two guide rods 107, one end of the guide rod 107 is slidably fitted in the inside of the guide hole 111, two springs 108 are fixedly fitted between the side wall of the guide groove 109 and one side of the L-shaped plate 106, the spring 108 is sleeved on the circumferential side of the guide rod 107, the outer side wall of the ring-shaped plate 101 is provided with a through hole 102, one end of the positioning rod 105 is located in the inside of the through hole 102, a plurality of connecting plates 104 are fixedly fitted in the inside of the U-shaped plate 103, one end of the positioning rod 105 is fixedly fitted on one side of the connecting plate 104, one end of the valve needle body 200 is provided with a clamping groove 201, one end of the positioning rod 105 is clamped and fitted with the clamping groove 201, and two fixed blocks 110 are fixedly fitted on both sides of the drive piece 100.

[0037] In use, first slide L-shaped plate 106, one end of L-shaped plate 106 is slidably fitted in the inside of the drive piece 100 through the guide groove 109, L-shaped plate 106 drives one end of the guide rod 107 to slide in the inside of the guide hole 111 and stretch the spring 108, the other end of the L-shaped plate 106 drives the U-shaped plate 103 to slide in the bottom of the drive piece 100, the U-shaped plate 103 drives the positioning rod 105 to slide through the connecting plate 104, the positioning rod 105 slides in the inside of the ring-shaped plate 101 through the through hole 102, one end of the positioning rod 105 slides out of the inside of the clamping groove 201 and releases the positioning of the valve needle body 200, and then completes the disassembly of the valve needle body 200.

[0038] The guide hole 111 is arranged, so that one end of the guide rod 107 slides in the inside of the guide hole 111 under the action of the L-shaped plate 106, and the sliding direction of the guide rod 107 is guided through the guide hole 111, the problem that the L-shaped plate 106 inclines when sliding is reduced, and the stability of the L-shaped plate 106 when sliding is improved.

[0039] The utility model is not limited to the above-mentioned embodiment, any person should know the structural change made under the inspiration of the utility model, and any technical scheme with the same or similar utility model falls into the protection scope of the utility model. The utility model is not described in detail, and the technical, shape and structure parts are all known technology.

Claims

1. A hot runner valve pin drive structure for injection molding, characterized by, Include: The drive piece (100), one side of the drive piece (100) is fixedly matched with a plurality of annular plates (101), one end of the drive piece (100) is elastically and slidingly matched with an L-shaped plate (106), one end of the L-shaped plate (106) is fixedly matched with a U-shaped plate (103), the inside of the U-shaped plate (103) is fixedly matched with a plurality of positioning rods (105), one end of the positioning rod (105) is slidingly matched in the inside of the annular plate (101); A plurality of valve needle bodies (200), one end of the valve needle body (200) is located in the inside of the annular plate (101), one end of the positioning rod (105) is clamped and matched with one end of the valve needle body (200).

2. The hot half valve needle drive structure for injection molding according to claim 1, characterized in that, One end of the drive piece (100) is provided with a guide groove (109), two guide holes (111) communicated with the guide groove (109), one end of the L-shaped plate (106) is slidingly matched in the inside of the guide groove (109).

3. The hot half valve needle drive structure for injection molding according to claim 2, characterized in that, One side of the L-shaped plate (106) is fixedly matched with two guide rods (107), one end of the guide rod (107) is slidingly matched in the inside of the guide hole (111).

4. The hot half valve needle drive structure for injection molding according to claim 3, characterized in that, Two springs (108) are fixedly matched between the side wall of the guide groove (109) and one side of the L-shaped plate (106), the spring (108) is sleeved on the circumferential side of the guide rod (107).

5. The hot half valve needle drive structure for injection molding according to claim 1, characterized in that, The outside wall of the annular plate (101) is provided with a through hole (102), one end of the positioning rod (105) is located in the inside of the through hole (102).

6. The hot half valve needle drive structure for injection molding according to claim 1, characterized in that, The inside of the U-shaped plate (103) is fixedly matched with a plurality of connecting plates (104), one end of the positioning rod (105) is fixedly matched on one side of the connecting plate (104).

7. The hot half valve needle drive structure for injection molding according to claim 1, characterized in that, One end of the valve needle body (200) is provided with a clamping groove (201), one end of the positioning rod (105) is clamped and matched with the clamping groove (201).

8. The hot half valve needle drive structure for injection molding according to claim 1, characterized in that, Both sides of the drive piece (100) are fixedly matched with two fixed blocks (110).

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