Foam raw material multi-stage accelerated feeding device

Abstract

A foam raw material multi-stage accelerated feeding device comprises a feeding gun body, the feeding gun body comprises a horizontally-arranged feeding gun barrel, a material outlet is formed in the right end of the feeding gun barrel, a main ventilation pipe is detachably fixed to the left end of the feeding gun barrel through a connector, and a gas switch valve is arranged on the main ventilation pipe; a feeding pipe is obliquely arranged at the top end of the feeding gun barrel, a shell wraps the periphery of the right end of the feeding gun barrel, a plurality of air inlets are formed in the feeding gun barrel in the shell, a branch ventilation pipe is arranged below the feeding gun barrel, the left end of the branch ventilation pipe is communicated with the feeding gun barrel on the left side of the feeding pipe, and the right end of the branch ventilation pipe is communicated with the left end of the shell. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of foam raw material feeding, in particular to a foam raw material multi-stage accelerated feeding device. Background Art

[0002] Expanded polystyrene, also known as expandable polystyrene (EPS), has the advantages of low relative density, low thermal conductivity, low water absorption, impact and vibration resistance, heat insulation, sound insulation, moisture resistance, vibration reduction, excellent dielectric properties, etc. It is widely used in mechanical equipment, instruments and meters, household appliances, handicrafts and the production of lost foam. EPS lost foam (also known as full-mold casting) is a foam plastic mold that uses a binder-free dry sand combined with a vacuum technology for full-mold casting. It is a new casting method that combines foam models with similar size and shape to the casting into a model cluster, pours under negative pressure, gasifies the model, and liquid metal occupies the model position. After solidification and cooling, a casting is formed. When producing EPS lost foam, a foam feeding gun is required. In the prior art, the foam particles need to be injected into a pressure tank, and the foam particle raw materials in the pressure tank are injected into the mold through a feed pipe 1 and a material gun 11. However, due to the irregular shape of the foam particles, it is easy to get blocked in the material gun barrel, and because the material gun barrel is long, the feeding speed is slow, which affects the production efficiency. Utility Model Content

[0003] In order to solve the technical problems of low efficiency and easy blockage when feeding the existing foam material, the utility model provides a foam raw material multi-stage accelerated feeding device, including a feeding gun body, the feeding gun body including a horizontally arranged feeding gun barrel, the right end of the feeding gun barrel is provided with a material outlet, the left end of the feeding gun barrel is detachably fixed with a main ventilation pipe through a connector, and the main ventilation pipe is provided with a gas switch valve, the left end of the main ventilation pipe is provided with an air intake hose, the left end of the air intake hose is connected to the air pump, the air pump conveys high-pressure gas to the main ventilation pipe through the air intake hose, and the main ventilation pipe accelerates the foam material at the left end of the feeding gun barrel. The top of the feeding gun barrel is provided with an inclined feeding pipe, the inclined angle between the feeding pipe and the feeding gun barrel is a, and 15°≤a≤45°, so that the foam material can enter the feeding gun barrel from the feeding pipe to reduce resistance. The right end of the feed gun barrel is covered with a shell, and a plurality of air inlets are opened on the feed gun barrel inside the shell. A branch ventilation pipe is provided below the feed gun barrel. The left end of the branch ventilation pipe is connected to the feed gun barrel on the left side of the feed pipe, and the right end of the branch ventilation pipe is connected to the left end of the shell. The high-pressure gas in the main ventilation pipe enters the shell through the branch ventilation pipe and enters the feed gun barrel through the air inlet, thereby realizing secondary acceleration of the foam material at the right end of the feed gun barrel.

[0004] Preferably, the air inlets are arranged obliquely, and the air inlets are evenly spaced around the circumference of the feed gun barrel.

[0005] Preferably, a material on-off valve for controlling the on-off of materials is provided on the feed pipe.

[0006] Preferably, the upper end of the feed pipe is connected to a feed hose, and the other end of the feed hose is connected to a pressure tank containing materials.

[0007] The above solution has the following advantages:

[0008] An air intake hose is arranged at the left end of the feed gun barrel, and the air pump conveys high-pressure gas to the main ventilation pipe through the air intake hose, and the main ventilation pipe accelerates the foam material at the left end of the feed gun barrel once; due to the arrangement of the shell and the branch ventilation pipe, the high-pressure gas in the main ventilation pipe enters the shell through the branch ventilation pipe, and enters the feed gun barrel through the air inlet, thereby realizing secondary acceleration of the foam material at the right end of the feed gun barrel; the feed hose is arranged on the feed gun barrel at an angle, which facilitates the foam material to enter the feed gun barrel from the feed pipe, thereby reducing resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the existing material gun;

[0010] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0011] Figure 3 It is a partial structural cross-sectional schematic diagram of the utility model.

[0012] Figure numerals: 1. material gun; 2. feed gun body; 3. main ventilation pipe; 4. shell; 5. feed pipe; 11. feed pipe; 21. feed gun barrel; 22. material outlet; 23. connector; 31. air intake hose; 32. gas switch valve; 41. branch ventilation pipe; 42. air inlet; 51. material on-off valve; 52. feed hose. DETAILED DESCRIPTION

[0013] like Figure 1-3As shown, a foam material multi-stage accelerated feeding device comprises a feeding gun body 2, the feeding gun body 2 comprises a horizontally arranged feeding gun barrel 21, a material outlet 22 is arranged at the right end of the feeding gun barrel 21, a main ventilation pipe 3 is detachably fixed to the left end of the feeding gun barrel 21 through a connector 23, and a gas switch valve 32 is arranged on the main ventilation pipe 3, an air intake hose 31 is arranged at the left end of the main ventilation pipe 3, and the left end of the air intake hose 31 is connected to an air pump, and the air pump delivers high-pressure gas to the main ventilation pipe 3 through the air intake hose 31, and the main ventilation pipe 3 accelerates the foam material at the left end of the feeding gun barrel 21. An inclined feeding pipe 5 is arranged at the top end of the feeding gun barrel 21, and the inclined angle between the feeding pipe 5 and the feeding gun barrel 21 is a, and 15°≤a≤45°, so that the foam material can enter the feeding gun barrel 21 from the feeding pipe to reduce resistance. The right end of the feed gun barrel 21 is covered with a shell 4, and a plurality of air inlets 42 are provided on the feed gun barrel 21 inside the shell 4. A branch ventilation pipe 41 is provided below the feed gun barrel 21. The left end of the branch ventilation pipe 41 is connected to the feed gun barrel 21 on the left side of the feed pipe 5, and the right end of the branch ventilation pipe 41 is connected to the left end of the shell 4. The high-pressure gas in the main ventilation pipe 3 enters into the shell 4 through the branch ventilation pipe 41, and enters into the feed gun barrel 21 through the air inlet 42, thereby realizing secondary acceleration of the foam material at the right end of the feed gun barrel 21.

[0014] Preferably, the air inlets 42 are arranged obliquely, and the air inlets 42 are evenly spaced around the feed barrel 21 circumferentially.

[0015] Preferably, the feed pipe 5 is provided with a material on-off valve 51 for controlling the on-off of the material.

[0016] Preferably, the upper end of the feed pipe 5 is connected to a feed hose 52 , and the other end of the feed hose 52 is connected to a pressure tank containing materials.

[0017] Usage process:

[0018] When the utility model is in use, the gas switch valve 32 on the main ventilation pipe 3 and the material on-off valve 51 on the feed pipe 5 are first closed, and then the outer end of the air intake hose 31 is connected to the air pump, and the outer end of the feed hose 52 is connected to the pressure tank containing foam material particles; the air intake hose 31 and the feed hose 52 are opened respectively, and the foam particle material enters the feed gun barrel 21 through the feed pipe 5, and the air pump conveys the high-pressure gas to the main ventilation pipe 3 through the air intake hose 31, and the main ventilation pipe 3 accelerates the foam material at the left end of the feed gun barrel 21 once; the high-pressure gas in the main ventilation pipe 3 enters into the shell 4 through the branch ventilation pipe 41, and enters into the feed gun barrel 21 through the air inlet 42, so as to achieve secondary acceleration of the foam material at the right end of the feed gun barrel 21.

[0019] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A foam raw material multi-stage accelerated feeding device, comprising a feeding gun body, the feeding gun body comprising a horizontally arranged feeding gun barrel, the right end of the feeding gun barrel is provided with a material outlet, characterized in that: The left end of the feed gun barrel is detachably fixed with a main ventilation pipe through a connecting head, and the main ventilation pipe is provided with a gas switching valve, the top of the feed gun barrel is provided with an inclined feed pipe, the right end of the feed gun barrel is covered with a shell, and the feed gun barrel in the shell is provided with a plurality of air inlets, and a branch ventilation pipe is provided below the feed gun barrel, the left end of the branch ventilation pipe is connected to the feed gun barrel on the left side of the feed pipe, and the right end of the branch ventilation pipe is connected to the left end of the shell.

2. A foam raw material multi-stage accelerated feeding device according to claim 1, characterized in that: The air inlets are arranged at an angle, and the air inlets are arranged evenly spaced around the circumference of the feed gun barrel.

3. The foam raw material multi-stage accelerated feeding device according to claim 1, characterized in that: The inclined angle between the feed pipe and the feed gun barrel is a, and 15°≤a≤45°.

4. The foam raw material multi-stage accelerated feeding device according to claim 1, characterized in that: The feed pipe is provided with a material on-off valve for controlling the on-off of materials.

5. The foam raw material multi-stage accelerating feeding device according to claim 4, characterized in that: The upper end of the feed pipe is connected with a feed hose, and the other end of the feed hose is connected with a pressure tank containing materials.

6. The foam raw material multi-stage accelerated feeding device according to claim 1, characterized in that: An air intake hose is arranged at the left end of the main ventilation pipe, and the left end of the air intake hose is connected to the air pump.

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