Material injection mechanism of injection blow mold

Abstract

The utility model discloses a material injection mechanism of an injection blow mold. The material injection mechanism comprises a material injection device, the material injection device is composed of a material barrel and a heating mechanism, the heating mechanism is installed on the outer side of the material barrel, a plug plate is slidably installed in the material barrel, a guide rod is installed at one end of the plug plate, one end of the guide rod extends out of the material barrel to be installed on the inner side of an installation plate, and a telescopic rod is installed on the inner side of the installation plate. The telescopic rod is installed between the charging barrels, the one-way feeding valve and the one-way discharging valve are installed on the two sides of one end of each charging barrel respectively, the feeding pipe is installed at one end of each one-way feeding valve, the injection port is formed in one end of each one-way discharging valve, and the injection port is formed in the lower portion of the mold. In the material injection process, materials are heated through the heating mechanism, the situation that the temperature in the material barrel is low and the materials are affected is avoided, meanwhile, the length of the injection opening is short, and the phenomenon that heat of the materials is lost in the flowing process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mechanism technical field, concretely is a kind of injection mechanism of injection blow mould. BACKGROUND

[0002] Injection blow mould is a mould for plastic forming, by injecting molten plastic into mould, then using gas to blow it into the shape required, injection blow needs to be carried out in the process.

[0003] Chinese patent No. CN202020169533.3 discloses an injection blow device for milk bottle plastic cover production, which is convenient for injection, comprising a base, two symmetrical support columns are arranged on the top of the base, a first air cylinder is fixedly connected to the center of the top surface of the base through bolts, a blow molding mechanism is arranged between the two support columns, a bearing frame is arranged above the two support columns, and a second air cylinder is fixedly connected to the two opposite side surfaces of the bearing frame through bolts.

[0004] In the prior art, the material flows along a long route, which is prone to condensation and solidification, affecting the injection effect. UTILITY MODEL CONTENT

[0005] The utility model aims at providing an injection mechanism of injection blow mould to solve the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an injection mechanism of injection blow mould, comprising an injection device; the injection device is composed of a barrel and a heating mechanism, the heating mechanism is installed on the outside of the barrel, a plug plate is slidably installed in the barrel, a guide rod is installed at one end of the plug plate, the guide rod extends out of the barrel and is installed on the inside of a mounting plate, an extension rod is installed on the inside of the mounting plate, the extension rod is installed between the barrels, a one-way feeding valve and a one-way discharging valve are respectively installed on both sides of one end of the barrel, a feeding pipe is installed at one end of the one-way feeding valve, an injection port is installed at one end of the one-way discharging valve, and the injection port is installed below the mould.

[0007] Preferably, a heat-resistant rubber pad is arranged on the outside of the plug plate, and the heat-resistant rubber pad is pasted on the outside of the plug plate by adhesive.

[0008] Preferably, the heating mechanism is composed of a mounting cylinder and a heating pipe, the mounting cylinder is installed on the outside of the barrel, and the heating pipe is installed in the mounting cylinder.

[0009] Preferably, a heat insulation plate is arranged in the mounting cylinder, and the heat insulation plate is installed in the mounting cylinder.

[0010] Preferably, the one-way feeding valve and the one-way discharging valve are both composed of an outer cylinder, a spring and a plug, two outer cylinders are installed at both sides of one end of the barrel, the plug is slidably installed inside the outer cylinder, and the spring is installed inside the outer cylinder at a position on one side of the plug.

[0011] Preferably, a sealing ring is arranged inside the outer cylinder at a position on the outside of the plug, and the sealing ring is installed inside the outer cylinder.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. In the process of feeding, the material is heated by the heating mechanism, so as to avoid the influence of low temperature inside the barrel on the material, and the length of the feeding inlet is short, so as to reduce the heat loss of the material in the flowing process;

[0014] 2. When the heating mechanism is used, the heating pipe is installed by the installation cylinder, the inside of the barrel is heated by the heating pipe, and the solidification of the material caused by low temperature inside the barrel is avoided;

[0015] 3. When the one-way feeding valve and the one-way discharging valve are used, when the material is introduced or discharged, the plug will slide along the single outer cylinder due to the crowding of the material, so that the material in the barrel is conveniently injected or discharged;

[0016] 4. The heat insulation plate is arranged to increase the heat insulation effect of the installation cylinder, so as to avoid the heat leakage of the installation cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0018] Figure 1 It is the structural schematic diagram of the utility model;

[0019] Figure 2 It is the barrel structure schematic diagram of the utility model;

[0020] Figure 3 It is the barrel internal structure schematic diagram of the utility model;

[0021] Figure 4 It is the one-way feeding valve internal structure schematic diagram of the utility model.

[0022] In the figure: 1, injection device; 2, barrel; 3, one-way discharge valve; 4, injection port; 5, mold; 6, one-way feeding valve; 7, telescopic rod; 8, mounting plate; 9, guide rod; 10, feeding pipe; 11, plug; 12, sealing ring; 13, outer cylinder; 14, spring; 15, heating mechanism; 16, heat insulation plate; 17, mounting cylinder; 18, heating pipe; 19, heat-resistant rubber pad; 20, plug plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 In the embodiments of the utility model, an injection mechanism of injection blow mold comprises an injection device 1; the injection device 1 is composed of a barrel 2 and a heating mechanism 15; the heating mechanism 15 is installed on the outer side of the barrel 2; a plug plate 20 is slidably installed in the barrel 2; a guide rod 9 is installed on one end of the plug plate 20; one end of the guide rod 9 extends out of the barrel 2 and is installed on the inner side of a mounting plate 8; a telescopic rod 7 is installed on the inner side of the mounting plate 8; the telescopic rod 7 is installed between the barrels 2; a one-way feeding valve 6 and a one-way discharge valve 3 are respectively installed on both sides of one end of the barrel 2; a feeding pipe 10 is installed on one end of the one-way feeding valve 6; an injection port 4 is installed on one end of the one-way discharge valve 3; the injection port 4 is installed below a mold 5; a heat-resistant rubber pad 19 is arranged on the outer side of the plug plate 20; the heat-resistant rubber pad 19 is pasted on the outer side of the plug plate 20 by adhesive; the heat-resistant rubber pad 19 is arranged to increase the sealing property between the plug plate 20 and the barrel 2, so as to avoid the phenomenon that materials adhere to the inside of the barrel 2 during use.

[0025] The heating mechanism 15 is composed of a mounting cylinder 17 and a heating pipe 18; the mounting cylinder 17 is installed on the outer side of the barrel 2; the heating pipe 18 is installed in the mounting cylinder 17; the mounting cylinder 17 is used to install the heating pipe 18 during use of the heating mechanism 15; the barrel 2 is heated by the heating pipe 18, so as to avoid the phenomenon that materials solidify due to low temperature in the barrel 2; a heat insulation plate 16 is arranged in the mounting cylinder 17; the heat insulation plate 16 is installed in the mounting cylinder 17; the heat insulation plate 16 is arranged to increase the heat insulation effect of the mounting cylinder 17, so as to avoid the phenomenon that heat in the mounting cylinder 17 leaks out during use.

[0026] The one-way feeding valve 6 and the one-way discharging valve 3 are each composed of an outer cylinder 13, a spring 14 and a plug 11, two outer cylinders 13 are installed at both sides of one end of the cylinder 2, the plug 11 is slidably installed in the inner part of the outer cylinder 13, and the spring 14 is installed in the inner part of the outer cylinder 13 at the side of the plug 11, when the one-way feeding valve 6 and the one-way discharging valve 3 are used, when the material is guided in or out, the plug 11 will slide along the outer cylinder 13 due to the congestion of the material, so that the injection of the material into the inner part of the cylinder 2 or the directional discharge of the material in the inner part of the cylinder 2 is facilitated, the sealing ring 12 is arranged at the outer side of the plug 11 in the inner part of the outer cylinder 13, the sealing ring 12 is installed in the inner part of the outer cylinder 13, and the sealing ring 12 is arranged to seal the gap between the outer cylinder 13 and the plug 11, so as to avoid the material from seeping into the inner part of the one-way feeding valve 6 and the one-way discharging valve 3 through the gap between the plug 11 and the outer cylinder 13 during use.

[0027] The working principle and use process of the utility model are as follows: when in use, the telescopic rod 7 is turned on through the switch, the telescopic rod 7 will drive the guide rod 9 to move outward, the guide rod 9 will drive the plug plate 20 to move when moving outward, at this time, the feeding pipe 10 will inject the material into the inner part of the cylinder 2, the one-way feeding valve 6 is opened at this time, the material is guided into the inner part of the cylinder 2, when injection is needed, the telescopic rod 7 drives the guide rod 9 to extend into the inner part of the cylinder 2, so as to drive the plug plate 20 to push the material, the material is guided into the injection port 4 through the one-way discharging valve 3, and is guided into the mold 5 through the injection port 4, in the process of injection, the material is heated through the heating mechanism 15, so as to avoid the influence on the material caused by the low temperature in the inner part of the cylinder 2, and the length of the injection port 4 is short, so as to reduce the heat loss of the material in the flowing process.

[0028] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An injection mechanism of an injection blow mould comprising an injection device (1); characterized in that: The injection device (1) is composed of a barrel (2) and a heating mechanism (15), the heating mechanism (15) is installed outside the barrel (2), a plug plate (20) is slidably installed inside the barrel (2), a guide rod (9) is installed at one end of the plug plate (20), the guide rod (9) extends out of the barrel (2) and is installed inside an installation plate (8), a telescopic rod (7) is installed inside the installation plate (8), the telescopic rod (7) is installed between the barrels (2), a one-way feeding valve (6) and a one-way discharging valve (3) are installed at both sides of one end of the barrel (2), a feeding pipe (10) is installed at one end of the one-way feeding valve (6), an injection inlet (4) is installed at one end of the one-way discharging valve (3), and the injection inlet (4) is installed below a mold (5).

2. A material injection mechanism of an injection blow mold according to claim 1, characterized in that: A heat-resistant rubber pad (19) is arranged outside the plug plate (20), and the heat-resistant rubber pad (19) is pasted outside the plug plate (20) by adhesive.

3. A material injection mechanism of an injection blow mold according to claim 1, wherein: The heating mechanism (15) is composed of a mounting cylinder (17) and a heating pipe (18), the mounting cylinder (17) is installed outside the barrel (2), and the heating pipe (18) is installed inside the mounting cylinder (17).

4. A parison injection mechanism of an injection blow mold according to claim 3, wherein: A heat insulation plate (16) is arranged inside the mounting cylinder (17), and the heat insulation plate (16) is installed inside the mounting cylinder (17).

5. The injection unit of claim 1, wherein: The one-way feeding valve (6) and the one-way discharging valve (3) are both composed of an outer cylinder (13), a spring (14) and a plug (11), two outer cylinders (13) are installed at both sides of one end of the barrel (2), the plug (11) is slidably installed inside the outer cylinder (13), and the spring (14) is installed inside the outer cylinder (13) on one side of the plug (11).

6. A parison injection mechanism of an injection blow mold according to claim 5, wherein: A sealing ring (12) is arranged inside the outer cylinder (13) on the outside of the plug (11), and the sealing ring (12) is installed inside the outer cylinder (13).

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