Totally-closed feeding device for liquid silicone rubber base material

Abstract

The utility model discloses a liquid silicone rubber base material totally-closed feeding device, and relates to the technical field of liquid silicone rubber base material processing, in particular to a liquid silicone rubber base material totally-closed feeding device, which comprises a feeding pipe, the feeding pipe is connected with an external feeding system, and the inside of one end of the feeding pipe is movably connected with a closed connecting frame. One end of the closed connecting frame extends out of the interior of the feeding pipe, a connecting round rod is fixedly connected to the inner side of the middle of the closed connecting frame, one end of the connecting round rod is fixedly connected with a closing valve capable of closing the feeding pipe, and when the closed connecting frame completely extends into the feeding pipe, the closing valve is pushed to open the feeding pipe. According to the fully-closed feeding device for the liquid silicone rubber base material, when the feeding pipe is not connected, the sealing valve can seal the feeding pipe under the action of the elastic force of the first spring, and when the feeding pipe is connected, the sealing connecting frame abuts against the feeding pipe, so that the feeding pipe can always keep a closed state degree in the connecting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid silicone rubber base material processing technical field, specifically is a kind of liquid silicone rubber base material full closed feeding device. BACKGROUND

[0002] Liquid silicone rubber is also called two-component addition silicone rubber.Liquid silicone rubber is a kind of silicone rubber relative to mixing type semi-solid silicone rubber and common room temperature vulcanization one-component silicone rubber, and this kind of rubber has good flowability, fast vulcanization, can be cast into shape and can be injection molded.Liquid silicone rubber is divided into self-adhesive type and non-self-adhesive type.Liquid silicone rubber can be cured at room temperature or high temperature.The high-temperature curing can be completed in a few seconds.In the process of liquid silicone rubber base material feeding, in order to avoid the influence of external dust on liquid silicone rubber base material, the feeding pipe is usually fixedly connected, and then feeding is carried out through the feeding system to realize the effect of closed feeding.In order to realize the smooth feeding of the feeding pipe, the feeding pipe is usually open when it is not connected, and external dust is easy to enter the feeding pipe.When the feeding pipe is connected, the dust in the feeding pipe will also be retained in it, and then it will be injected with the subsequent liquid silicone rubber base material, thereby affecting the purity of the base material, so a liquid silicone rubber base material full closed feeding device is proposed. SUMMARY

[0003] The utility model provides a kind of liquid silicone rubber base material full closed feeding device, solve the problem raised in the above background technology.

[0004] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of liquid silicone rubber base material full closed feeding device, including feeding pipe, the feeding pipe is connected with the feeding system outside, the inside movable joint of the one end of the feeding pipe is connected with closed connecting frame, the inside of the one end of the closed connecting frame is stretched into the inside of the feeding pipe, and the inside of the middle of the closed connecting frame is fixedly connected with connecting round bar, the one end of the connecting round bar is fixedly connected with the closed valve that can close the feeding pipe, when the closed connecting frame is completely stretched into the feeding pipe, push the closed valve to open the feeding pipe, and two same direction check valve mechanisms are provided on the feeding pipe, the feeding cavity for transferring base material is formed between the two check valve mechanisms, and branch pipe is connected between the two check valve mechanisms on the feeding pipe, the branch pipe is communicated with the feeding cavity, and the piston for pushing material is movably connected in the branch pipe.

[0005] Optionally, the one end of the closed connecting frame stretched into the feeding pipe is fixedly connected with first spring, and the one end of the first spring is fixed with the inner wall of the feeding pipe.

[0006] Optionally, the outside of the one end of the feeding pipe is threadedly connected with connecting ring sleeve for closed connection of the feeding pipe, and the one end close to the first spring of the connecting round bar is conical.

[0007] Optionally, the one-way valve mechanism comprises a conical valve, a connecting frame, and a connecting ring plate, the connecting frame in cross shape is movably connected to the feeding pipe, one end of the connecting frame is fixedly connected with the conical valve for closing the feeding pipe, and the outer side of the other end of the connecting frame is fixedly connected with the connecting ring plate.

[0008] Optionally, one side of the connecting ring plate is fixedly connected with a second spring, one end of the second spring is fixed to the feeding pipe.

[0009] Optionally, one end of the piston away from the feeding pipe is fixedly connected with an electric push rod, and one end of the electric push rod is fixed to the inner wall of the branch pipe.

[0010] The utility model has the following beneficial effects:

[0011] 1. The liquid silicone rubber base material full-closed feeding device, when the feeding pipe is not connected, the closing valve can close the feeding pipe under the action of the first spring elasticity, when the feeding pipe is connected, the abutment of the closing connecting frame makes the feeding pipe keep closed during the connection process, and the full-closed feeding process is realized, so that the cleanliness of the material collection is ensured.

[0012] 2. The liquid silicone rubber base material full-closed feeding device, the electric push rod drives the piston to move cyclically and reciprocally, and the material collection can be quantitatively fed in a cyclic and progressive manner through the feeding cavity under the cooperation of the two one-way valve mechanisms, so that the feeding is more convenient. DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is a sectional view of the utility model;

[0015] Figure 3 It is a structural schematic view of the closing connecting frame connection;

[0016] Figure 4 It is a structural schematic view of the one-way valve mechanism connection;

[0017] Figure 5 It is a structural schematic view of the A place of the utility model;

[0018] Figure 6 It is a structural schematic view of the B place of the utility model.

[0019] In the figure: 1, feeding pipe; 2, branch pipe; 3, closing valve; 4, closing connecting frame; 5, connecting ring sleeve; 6, feeding cavity; 7, one-way valve mechanism; 8, piston; 9, electric push rod; 10, connecting round rod; 11, first spring; 12, conical valve disc; 13, connecting frame; 14, connecting ring plate; 15, second spring. DETAILED DESCRIPTION

[0020] 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 protection scope of the utility model.

[0021] Please refer to Figures 1 to 6 A kind of liquid silicone rubber base material full-closed feeding device, including feeding pipe 1, feeding pipe 1 is connected with the feeding system outside, feeding system is prior art, not improved here, not described here, one end of feeding pipe 1 is movably connected with closed connecting frame 4, closed connecting frame 4 can be moved relative to feeding pipe 1, its closed connecting frame 4 can be completely inserted into the inside of feeding pipe 1, one end of closed connecting frame 4 is inserted into the inside of feeding pipe 1, and the inside of closed connecting frame 4 is fixedly connected with connecting round rod 10, under the driving of closed connecting frame 4, connecting round rod 10 can be moved, one end of connecting round rod 10 is fixedly connected with the closed valve 3 that can close feeding pipe 1, under the driving of connecting round rod 10, closed valve 3 can be moved, by closed connecting frame 4, feeding pipe 1 can be connected under closed condition, to ensure that feeding pipe 1 can realize the effect of full closure, when closed connecting frame 4 is completely inserted into feeding pipe 1, closed valve 3 is pushed to open feeding pipe 1, and two same direction one-way valve mechanisms 7 are provided on feeding pipe 1, the feeding cavity 6 that transports base material is formed between the two one-way valve mechanisms 7, and branch pipe 2 is connected between the two one-way valve mechanisms 7 on feeding pipe 1, branch pipe 2 is communicated with feeding cavity 6, and piston 8 that pushes material is movably connected in branch pipe 2, when piston 8 moves to branch pipe 2, the one-way valve mechanism 7 far from closed connecting frame 4 is opened, so that base material can be sucked into feeding cavity 6, then when piston 8 moves to feeding pipe 1, the one-way valve mechanism 7 close to closed connecting frame 4 is opened, so that base material can be extruded.

[0022] Please refer to Figures 1 to 5The first spring 11 is fixedly connected to the end of the closing connecting frame 4 extending into the feeding pipe 1, and one end of the first spring 11 is fixed to the inner wall of the feeding pipe 1. Under the elastic force of the first spring 11, the closing connecting frame 4 can automatically move to drive the closing valve 3 to close the feeding pipe 1 when the feeding pipe 1 is disassembled.

[0023] Please refer to Figures 1 to 5 The connecting ring 5 is threadedly connected to the outside of one end of the feeding pipe 1 for closing connection of the feeding pipe 1, so that the feeding pipe 1 can be quickly connected. The end of the connecting rod 10 close to the first spring 11 is conical to reduce the pushing force of the base material flow on the closing valve 3 and reduce the resistance of the base material flow, so that the base material can be smoothly fed.

[0024] Please refer to Figures 1 to 6 The one-way valve mechanism 7 includes a conical valve 12, a connecting frame 13, and a connecting ring plate 14. The connecting frame 13 in cross shape is movably connected to the feeding pipe 1 and can be fixedly moved on the feeding pipe 1. The cross-shaped structure allows the base material to flow smoothly through the connecting frame 13. One end of the connecting frame 13 is fixedly connected to the conical valve 12 for closing the feeding pipe 1. Under the action of the conical valve 12, the connecting frame 13 can be smoothly returned to the original position under the driving of the connecting ring plate 14.

[0025] Please refer to Figures 1 to 6 One side of the connecting ring plate 14 is fixedly connected to the second spring 15, and one end of the second spring 15 is fixed to the feeding pipe 1. Under the elastic force of the second spring 15, the conical valve 12 can be smoothly returned to the original position to close the feeding pipe 1.

[0026] Please refer to Figures 1 to 2 The piston 8 is fixedly connected to the electric push rod 9 at the end away from the feeding pipe 1. One end of the electric push rod 9 is fixed to the inner wall of the branch pipe 2. Under the driving of the electric push rod 9, the piston 8 can be smoothly moved. The electric push rod 9 is prior art and will not be described here.

[0027] In conclusion, the liquid silicone rubber base full-closed feeding device, when the feeding pipe 1 is connected, the closed connecting frame 4 is first abutted, the closed connecting frame 4 is moved relative to the feeding pipe 1, the connecting round rod 10 is moved under the driving of the closed connecting frame 4, the closed valve 3 is moved to the inside of the feeding pipe 1, the closed valve 3 can open the feeding pipe 1, then the connecting ring 5 is screwed, the feeding pipe 1 can be fixedly connected, the full-closed state between them is ensured, then the piston 8 is moved under the driving of the electric push rod 9, when the piston 8 moves to the branch pipe 2, the conical valve disc 12 far away from the closed connecting frame 4 is opened, the base can be sucked into the feeding cavity 6, then when the piston 8 moves to the feeding pipe 1, the conical valve disc 12 close to the closed connecting frame 4 is opened, the base can be extruded.

[0028] In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.

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

Claims

1. A liquid silicone rubber base material closed feeding device comprising a feeding pipe (1) connected with an external feeding system, characterized in that: The inside of one end of the feeding pipe (1) is movably connected with a closed connecting frame (4), one end of the closed connecting frame (4) extends into the inside of the feeding pipe (1), the inside of the middle of the closed connecting frame (4) is fixedly connected with a connecting round rod (10), one end of the connecting round rod (10) is fixedly connected with a closed valve (3) capable of closing the feeding pipe (1), when the closed connecting frame (4) extends completely into the feeding pipe (1), the closed valve (3) is pushed to open the feeding pipe (1), two same-direction one-way valve mechanisms (7) are arranged on the feeding pipe (1), a feeding cavity (6) for transferring base material is formed between the two one-way valve mechanisms (7), a branch pipe (2) is connected between the two one-way valve mechanisms (7) on the feeding pipe (1), the branch pipe (2) is communicated with the feeding cavity (6), and a pusher piston (8) is movably connected in the branch pipe (2).

2. A liquid silicone rubber base material fully closed charging device according to claim 1, characterized in that: One end of the closed connecting frame (4) extending into the feeding pipe (1) is fixedly connected with a first spring (11), one end of the first spring (11) is fixed to the inner wall of the feeding pipe (1).

3. A liquid silicone rubber base material fully closed charging device according to claim 2, characterized in that: The outside of one end of the feeding pipe (1) is threadedly connected with a connecting ring sleeve (5) for closing connection of the feeding pipe (1), and one end of the connecting round rod (10) close to the first spring (11) is conical.

4. A liquid silicone rubber base material fully closed charging device according to claim 1, characterized in that: The one-way valve mechanism (7) comprises a conical valve clack (12), a connecting frame (13) and a connecting ring plate (14), the connecting frame (13) in cross shape is movably connected on the feeding pipe (1), one end of the connecting frame (13) is fixedly connected with the conical valve clack (12) capable of closing the feeding pipe (1), and the outside of the other end of the connecting frame (13) is fixedly connected with the connecting ring plate (14).

5. A liquid silicone rubber base material fully closed charging device according to claim 4, characterized in that: One side of the connecting ring plate (14) is fixedly connected with a second spring (15), one end of the second spring (15) is fixed to the feeding pipe (1).

6. A liquid silicone rubber base material fully closed charging device according to claim 3, characterized in that: One end of the piston (8) away from the feeding pipe (1) is fixedly connected with an electric push rod (9), one end of the electric push rod (9) is fixed to the inner wall of the branch pipe (2).

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