Discharging structure of EVA raw material stirrer

Abstract

The utility model provides a discharging structure of an EVA (Ethylene Vinyl Acetate) raw material stirrer and belongs to the technical field of machinery. The problem that an existing stirrer is poor in discharging speed is solved. According to the discharging structure of the EVA raw material stirring machine, the stirring machine comprises an outer tank body and an inner tank body vertically arranged in the outer tank body, a heating cavity is formed between the outer tank body and the inner tank body, a stirring shaft is vertically and rotatably arranged in the inner tank body, the discharging structure comprises a discharging pipe vertically fixed to the bottom of the inner tank body, and a discharging opening communicated with the discharging pipe is formed in the bottom of the inner tank body; the lower end of the discharging pipe extends out of the outer tank body, a straight-rod-shaped stirring rod is vertically arranged in the discharging pipe, the upper end of the stirring rod extends into the inner tank body and is fixedly connected with the stirring shaft, and the ratio of the length of the part, located in the discharging pipe, of the stirring rod to the length of the discharging pipe is larger than 2 / 3. The discharging structure of the EVA raw material stirrer is high in discharging speed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical technical field relates to a kind of EVA raw material stirrers, especially a kind of discharge structure of EVA raw material stirrer. BACKGROUND

[0002] EVA (Ethylene-vinyl acetate copolymer) raw material stirrer is a kind of mechanical equipment specially used for mixing, stirring EVA particles or powder, the structure of the equipment is like the plastic particle raw material variable speed mixer disclosed in Chinese patent library (application number: 202221320115.5), including mixing box, high-speed stirring mechanism, low-speed stirring mechanism, the upper portion of the mixing box is separated into linkage chamber and mixing chamber by a partition, the center of the partition is internally provided with a bearing A, the inner ring of the bearing A is fixedly provided with the hollow shaft extending upward, the high-speed stirring mechanism includes high-speed drive assembly, first stirring shaft and stirring paddle, the high-speed drive assembly is arranged at the top center of mixing box, and one end of the first stirring shaft is connected with the driving end of high-speed drive assembly, and the other end passes through the hollow shaft and is connected with the stirring paddle in the mixing chamber;The low-speed stirring mechanism includes low-speed drive assembly, two second stirring shafts and two stirring discs, the low-speed drive assembly is arranged at the top side of mixing box, the opposite sides of the partition are internally provided with a bearing B, two second stirring shafts are respectively fixed with the inner ring of a bearing B and extend upward and downward, and the two second stirring shafts are connected by transmission assembly between the hollow shaft, one of the stirring shafts passes out of the linkage chamber and is connected with the driving end of low-speed drive assembly, and two stirring discs are respectively connected with a second stirring shaft in the mixing chamber.

[0003] The above-mentioned mixing machine is used, and the size of discharge port is generally not very large, and congestion is prone to occur during discharging, which affects the discharging efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above-mentioned problems existing in prior art, and provides a kind of discharge structure of EVA raw material stirrer that discharges smoothly.

[0005] The utility model discloses a kind of discharge structure of EVA raw material stirrer, stirrer includes outer tank body and vertical inner tank body being arranged in outer tank body, and heating cavity is formed between outer tank body and inner tank body, stirring shaft is vertically rotated in inner tank body, this discharge structure includes vertical fixed discharge pipe in inner tank body bottom, and inner tank body bottom is equipped with the discharge port being connected with discharge pipe, discharge pipe lower end extends to outer tank body outside, it is characterized in that, straight bar-shaped stirring rod is vertically arranged in discharge pipe, stirring rod upper end extends to inner tank body and is fixedly connected with stirring shaft, and the length ratio of stirring rod in discharge pipe and discharge pipe length is greater than 2 / 3.

[0006] When in use, the stirring rod rotates with the stirring shaft to stir the mixed raw materials entering the discharge pipe, effectively avoiding the internal blockage of the discharge pipe, ensuring that the mixed raw materials are quickly discharged through the discharge pipe, and making the entire discharge process more smooth and efficient.

[0007] In the above-mentioned EVA raw material stirring machine discharge structure, the bottom of the stirring shaft is vertically provided with a threaded hole, and the upper end of the stirring rod is screwed into the threaded hole. With the above design, it has the advantages of simple structure, easy installation, etc.

[0008] As another option, in the above-mentioned EVA raw material stirring machine discharge structure, the bottom of the stirring shaft is vertically provided with a plug hole matched with the upper end of the stirring rod, the upper end of the stirring rod is inserted into the plug hole, and the stirring rod and the stirring shaft are welded and fixed. With the above design, it also has the advantages of simple structure and stable connection.

[0009] In the above-mentioned EVA raw material stirring machine discharge structure, the upper end of the stirring rod is formed with a ring-shaped limiting seat on the outer wall, and the limiting seat is pressed on the bottom wall of the stirring shaft. The limiting seat is used for limiting the installation of the stirring rod, so that the stirring rod is installed in place at one time, further facilitating assembly.

[0010] In the above-mentioned EVA raw material stirring machine discharge structure, the bottom of the inner tank is fixed with a support, the support is in the inner tank, and the lower end of the stirring shaft is rotatably arranged on the support to support the lower end of the stirring shaft, so that the stirring rod rotates more stably.

[0011] In the above-mentioned EVA raw material stirring machine discharge structure, the support includes a vertically arranged positioning pipe, and the positioning pipe is supported and positioned in the inner tank by the support body; the lower end of the stirring shaft extends into the positioning pipe, and the lower end of the stirring shaft is rotatably connected with the positioning pipe by a closed bearing.

[0012] In the above-mentioned EVA raw material stirring machine discharge structure, the central axes of the stirring shaft, the stirring rod and the discharge pipe are collinearly arranged.

[0013] Compared with the prior art, the EVA raw material stirring machine discharge structure has the following advantages:

[0014] 1、When in use, the stirring rod rotates with the stirring shaft to stir the mixed raw materials entering the discharge pipe, effectively avoiding the internal blockage of the discharge pipe, ensuring that the mixed raw materials are quickly discharged through the discharge pipe, and making the entire discharge process more smooth and efficient.

[0015] 2、The limiting seat is used for limiting the installation of the stirring rod, so that the stirring rod is installed in place at one time, further facilitating assembly. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a cross-sectional view of the EVA raw material stirring machine.

[0017] Figure 2 is Figure 1 an enlarged schematic view of A in FIG.

[0018] In the figure, 1 is an outer tank body; 2 is an inner tank body; 3 is a heating cavity; 4 is a stirring shaft; 5 is a discharge pipe; 6 is an on-off valve; 7 is a stirring rod; 7a is a limiting seat; 8 is a bracket; 8a is a positioning pipe; 8b is a frame body; 9 is a sealed bearing. DETAILED DESCRIPTION

[0019] The following is a specific embodiment of the present application and further describes the technical scheme of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0020] Embodiment one

[0021] As shown in the discharge structure of the EVA raw material stirring machine, Figure 1

[0022] The stirring machine comprises an outer tank body 1 and an inner tank body 2 vertically arranged in the outer tank body 1. The inner tank body 2 and the outer tank body 1 are coaxially arranged, and a heating cavity 3 is formed between the outer tank body 1 and the inner tank body 2. The inner tank body 2 is vertically rotatably provided with a stirring shaft 4.

[0023] The discharge structure comprises a discharge pipe 5 vertically fixed at the bottom of the inner tank body 2, and the bottom of the inner tank body 2 is provided with a discharge port communicating with the discharge pipe 5. The lower end of the discharge pipe 5 extends to the outside of the outer tank body 1, and in the actual product, the lower end of the discharge pipe 5 is connected with an on-off valve 6. As shown in Figure 1 and Figure 2 The stirring rod 7 is vertically arranged in the discharge pipe 5 in a straight rod shape, the upper end of the stirring rod 7 extends into the inner tank body 2 and is fixedly connected with the stirring shaft 4, and the length of the stirring rod 7 located in the discharge pipe 5 is greater than 2 / 3 of the length of the discharge pipe 5. Preferably, the coaxial lines of the stirring shaft 4, the stirring rod 7 and the discharge pipe 5 are arranged. In the actual product, the length of the stirring rod 7 located in the discharge pipe 5 is less than the length of the discharge pipe 5, and preferably the ratio of the two is 3 / 4.

[0024] In use, the stirring rod 7 rotates with the stirring shaft 4 to stir the mixed raw materials entering the discharge pipe 5, effectively avoiding the blockage of the inside of the discharge pipe 5, ensuring that the mixed raw materials are quickly discharged through the discharge pipe 5, so that the entire discharge process is more smooth and efficient.

[0025] In this embodiment,

[0026] ​The connecting mode of the stirring rod 7 and the stirring shaft 4 is as follows: a threaded hole is vertically formed in the bottom of the stirring shaft 4, and the upper end of the stirring rod 7 is screwed into the threaded hole. With the above design, the structure is simple, and the installation is convenient. Further, a limit seat 7a in the form of a ring is formed on the outer wall of the upper end of the stirring rod 7, the limit seat 7a is coaxially arranged with the stirring rod 7, and the limit seat 7a is pressed on the bottom wall of the stirring shaft 4. The limit seat 7a is used for limiting the installation of the stirring rod 7, so that the stirring rod 7 is installed in place at one time, and the assembly is further facilitated.

[0027] As shown in Figure 2 The bottom of the inner tank body 2 is fixed with a support 8, the support 8 is in the inner tank body 2, and the lower end of the stirring shaft 4 is rotatably arranged on the support 8, so as to support the lower end of the stirring shaft 4, and make the stirring rod 7 rotate more stably. Specifically, the support 8 comprises a positioning pipe 8a arranged vertically, and the positioning pipe 8a is supported and positioned in the inner tank body 2 through a frame body 8b; the lower end of the stirring shaft 4 extends into the positioning pipe 8a, and the lower end of the stirring shaft 4 is rotatably connected with the positioning pipe 8a by using a closed bearing 9, at this time, the inner ring and the outer ring of the closed bearing 9 are respectively fixedly connected with the stirring shaft 4 and the positioning pipe 8a by interference fit. In the actual product, the positioning pipe 8a and the support 8 are welded and fixedly connected; the frame body 8b and the inner tank body 2 are welded and fixedly connected.

[0028] Embodiment two

[0029] The structure and principle of the second embodiment are basically the same as those of the first embodiment, and the difference lies in that a plug hole matched with the upper end of the stirring rod 7 is vertically formed in the bottom of the stirring shaft 4, the upper end of the stirring rod 7 is inserted into the plug hole, and the stirring rod 7 and the stirring shaft 4 are welded and fixedly connected. With the above design, the structure is simple, and the connection is stable.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A discharge structure of an EVA raw material stirring machine, the stirring machine comprising an outer tank body (1) and an inner tank body (2) vertically arranged in the outer tank body (1), and a heating cavity (3) being formed between the outer tank body (1) and the inner tank body (2), a stirring shaft (4) being vertically rotatably arranged in the inner tank body (2), the discharge structure comprising a discharge pipe (5) vertically fixed at the bottom of the inner tank body (2), and a discharge opening being arranged at the bottom of the inner tank body (2) and communicating with the discharge pipe (5), the lower end of the discharge pipe (5) extending out of the outer tank body (1), characterized in that, A straight rod-shaped stirring rod (7) is vertically arranged in the discharge pipe (5), the upper end of the stirring rod (7) extends into the inner tank body (2) and is fixedly connected with the stirring shaft (4), and the length ratio of the stirring rod (7) in the discharge pipe (5) to the length of the discharge pipe (5) is greater than 2 / 3.

2. The EVA raw material mixer discharge structure according to claim 1, wherein The bottom of the stirring shaft (4) is vertically provided with a threaded hole, and the upper end of the stirring rod (7) is screwed into the threaded hole.

3. The EVA raw material mixer discharge structure according to claim 1, wherein The bottom of the stirring shaft (4) is vertically provided with a plug hole matched with the upper end of the stirring rod (7), the upper end of the stirring rod (7) is inserted into the plug hole, and the stirring rod (7) and the stirring shaft (4) are welded and fixedly connected.

4. The EVA raw material mixer discharge structure according to claim 2 or 3, characterized in that, The outer wall of the upper end of the stirring rod (7) is formed with a ring-shaped limiting seat (7a), and the limiting seat (7a) is pressed on the bottom wall of the stirring shaft (4).

5. The EVA raw material mixer discharge structure according to claim 1, wherein The bottom of the inner tank body (2) is fixedly provided with a support (8), the support (8) is located in the inner tank body (2), and the lower end of the stirring shaft (4) is rotatably arranged on the support (8).

6. The EVA raw material mixer discharge structure according to claim 5, wherein The support (8) comprises a vertical positioning pipe (8a), and the positioning pipe (8a) is supported and positioned in the inner tank body (2) by a frame body (8b); the lower end of the stirring shaft (4) extends into the positioning pipe (8a), and the lower end of the stirring shaft (4) is rotatably connected with the positioning pipe (8a) by a closed bearing (9).

7. The EVA raw material mixer discharge structure according to claim 1, wherein The axes of the stirring shaft (4), the stirring rod (7) and the discharge pipe (5) are coaxially arranged.

Images